CA2275560C - Improved adhesive patterns for feminine hygiene articles - Google Patents
Improved adhesive patterns for feminine hygiene articles Download PDFInfo
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- CA2275560C CA2275560C CA002275560A CA2275560A CA2275560C CA 2275560 C CA2275560 C CA 2275560C CA 002275560 A CA002275560 A CA 002275560A CA 2275560 A CA2275560 A CA 2275560A CA 2275560 C CA2275560 C CA 2275560C
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- Canada
- Prior art keywords
- backing sheet
- adhesive
- wings
- areas
- adhesive areas
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- Expired - Fee Related
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/47—Sanitary towels, incontinence pads or napkins
- A61F13/476—Sanitary towels, incontinence pads or napkins characterised by encircling the crotch region of the undergarment
Abstract
A feminine hygiene article and method of making same so that back-attached wings have adhesive areas for attachment to an undergarment, that are substantially offset from the adhesive areas of the main body portion, also used to attach the undergarment.
Description
IMPROVED ADHESIVE PATTERNS FOR FEMININE HYGIENE ARTICLES
Field of the Invention This invention relates to a disposable feminine hygiene article having back-,attached wings with adhesive to help secure the article t~~ an undergarment, along 1o with the adhesive areas on the main body portion of the article.
Background of the Invention Disposable feminine hygiene articles, which are understood herein to include sanitary napkins, pantiliners, and incontinence pads, feature a main body portion comprising an absorbE~nt material mounted on an impervious backing sheet, thE~ main body portion being 2o bounded by a peripheral edge., (As used herein, ~~peripheral edge" refers to 1=he extreme outside edge of the main body, however that Edge happens to have been formed.) Frequently, such articles further include attachment wings or flaps contiguously extending from said backing sheet from oppo:~ite sides thereof. Because portions of both the backing sheet and the wings support adhesive areas, when the article is placed with the .~ o backing sheet in contact with one side of the crotch area of an undergarment, anc( the wings are wrapped around the other side of the crotch area, the two opposing adhesive areas hold the article in proper location on both sides of th.e undergarment.
Such wings are either contiguous extensions of the backing sheet, in which case they hinge and fold primarily about said peripheral edge of the main body to portion, or, they are hingedly attached to the backing sheet along a fold line located inside the peripheral edge of the main body portion, hereinafter, "back-attached". A preferred manner of constructing the latter is to form the wings as a contiguous extension of the backing sheet, and then to fold them about the peripheral edge and adhesively secure a portion of the wing to a portion of the backing sheet inside the peripheral edge. This is preferred because it biases the wings to fold back towards the main body portion, 2o exactly as the user does when wrapping the wings about an interposed undergarment. It has been found that such a bias renders easier the wrapping of the wings about the undergarment. Indeed, i:n the absence of the bias so provided, the wings may have a tendency to unfold and pull their adhesive areas off the undergarment.
Field of the Invention This invention relates to a disposable feminine hygiene article having back-,attached wings with adhesive to help secure the article t~~ an undergarment, along 1o with the adhesive areas on the main body portion of the article.
Background of the Invention Disposable feminine hygiene articles, which are understood herein to include sanitary napkins, pantiliners, and incontinence pads, feature a main body portion comprising an absorbE~nt material mounted on an impervious backing sheet, thE~ main body portion being 2o bounded by a peripheral edge., (As used herein, ~~peripheral edge" refers to 1=he extreme outside edge of the main body, however that Edge happens to have been formed.) Frequently, such articles further include attachment wings or flaps contiguously extending from said backing sheet from oppo:~ite sides thereof. Because portions of both the backing sheet and the wings support adhesive areas, when the article is placed with the .~ o backing sheet in contact with one side of the crotch area of an undergarment, anc( the wings are wrapped around the other side of the crotch area, the two opposing adhesive areas hold the article in proper location on both sides of th.e undergarment.
Such wings are either contiguous extensions of the backing sheet, in which case they hinge and fold primarily about said peripheral edge of the main body to portion, or, they are hingedly attached to the backing sheet along a fold line located inside the peripheral edge of the main body portion, hereinafter, "back-attached". A preferred manner of constructing the latter is to form the wings as a contiguous extension of the backing sheet, and then to fold them about the peripheral edge and adhesively secure a portion of the wing to a portion of the backing sheet inside the peripheral edge. This is preferred because it biases the wings to fold back towards the main body portion, 2o exactly as the user does when wrapping the wings about an interposed undergarment. It has been found that such a bias renders easier the wrapping of the wings about the undergarment. Indeed, i:n the absence of the bias so provided, the wings may have a tendency to unfold and pull their adhesive areas off the undergarment.
Nevertheless, the helpful bias noted above has its own disadvantage. The adhesive areas on both the backing sheet and the wings are temporarily covered by release paper until the user is ready to install the article. However, once the release paper is removed, if the adhesive area of a wing inadvertently contacts directly the adhesive area o:f the backing sheet, the two stick together so well (in the absence of the intended undergarment), that they cannot be pulled apart without to damaging the article. The noted bias of the wings towards the backing sheet has the disadvantage of making such inadvertent contact morE~, rather than less, likely.
Thus, there has been a need prior to this invention to prevent wing adhesive areas from sticking to the adhesive areas of the backing sheet, particularly when the wings are made by folding them about the peripheral edge and adhesively secured t:o the backing sheet to create the bias.
Summary of the Invention We have designed a dispc>sable feminine hygiene article that solves the above-noted problems.
Thus, there has been a need prior to this invention to prevent wing adhesive areas from sticking to the adhesive areas of the backing sheet, particularly when the wings are made by folding them about the peripheral edge and adhesively secured t:o the backing sheet to create the bias.
Summary of the Invention We have designed a dispc>sable feminine hygiene article that solves the above-noted problems.
More specifically, in accord with one aspect of the invention, there is provided a disposable feminine hygiene article comprising: a main body portion comprising an absorbent material and an impervious backing sheet on which said absorbent material is mounted, said main body portion being bounded by a peripheral edge, and wings, each wing extending from and hingedly attached to said backing sheet along a fold line inside of said peripheral edge, portions of said backing sheet and of said wings being provided with adhesive areas sufficient to bind said article to an undergarment to hold said article in place, said portions of said backing sheet comprising one or more sections of the backing sheet located intermediate said wings, substantially all of said adhesive areas on said wings being offset from said adhesive areas on said backing sheet so that if said wings are folded about said fold lines towards said adhesive areas on said backing sheet without an undergarment in place and with any release paper removed, said adhesive areas on said wings cannot contact said adhesive areas on said backing sheet.
In accord with another aspect of the invention, there is provided a method of attaching a disposable feminine hygiene article to an undergarment, comprising the steps of: a) providing said article with a main body of absorbent material mounted on an impervious backing sheet, and opposing wings foldably projecting from said backing sheet to assist in attachment to an undergarment, said wings being each foldable towards said backing sheet along a fold line, said backing sheet and said wings each having pressure-sensitive adhesive areas optionally covered with removable release paper, said adhesive areas of said backing sheet of said main body occupying at least 50% of the total surface area of said backing sheet of said main body portion and at least a part of said adhesive areas of said backing sheet of said main body being located intermediate said wings; b) removing any release paper from all of said adhesive areas; c) attaching said adhesive area of said backing sheet to one side of a suitable undergarment; and d) attaching said adhesive areas of said wings to a side of said undergarment opposite to said one side by folding over each of said wings about said fold line so that, with said undergarment in-between, substantially all the adhesive areas of the wings are offset from the adhesive areas of said backing sheet; whereby any inadvertent folding over of said wings in the absence of an undergarment will not adhere a wing to the adhesive areas of said backing sheet because the adhesive areas of wings and backing sheet are not superimposed.
In accord with yet another aspect of the invention, there is provided a method of preventing contact of an adhesive area on a wing of a disposable feminine hygiene article, and an adhesive area on a backing sheet of said article, said article further including a main body portion bounded by a peripheral edge, said wing being hingedly attached to said backing sheet along a fold line located inside said peripheral edge and biased to fold along said fold line towards and in contact with said backing sheet, at least part of said backing sheet adhesive area being positioned intermediate said wings; the method comprising the steps: a) placing said adhesive on said backing sheet in predetermined areas on said backing sheet, and b) placing substantially all of said adhesive area on said wing at places that are offset from said predetermined adhesive areas on said backing sheet, so that contact between the wing and said backing sheet due to said bias in the absence of an undergarment, will not place adhesive in contact with adhesive.
As used herein, "substantially all adhesive areas ... are offset" means, a deliberate positioning such that the offset condition occurs for all the adhesive areas during normal manufacture and application of the article. It does not mean to exclude the case wherein a negligible amount of the adhesive areas happen to overlap due to either accidental variations during manufacture, or mis-applications during use of the article. As used herein, "negligible" means, a misplacement of the adhesive and thus an overlap that does not exceed about 5mm lineal distance.
Also, as used herein, a "fold line" can be curved or straight, and when referring to the fold line of the wing, it means the line along which the wing is first free to fold relative to the main body. Additionally there may be other portions of the wing more distal from the fold line and the main body, that also are foldable.
_7-Accordingly, it is an advantageous feature of the invention that a disposable feminine hygiene article with back-attached wings is provided that adheres to an undergarment by the use of adhesive areas, so constructed that the adhesive areas of the wings cannot g _ inadvertently and ruinously stick, when exposed for use, to the other adhesive areas in the absence of an undergarment between them.
Other advantageous features will become apparent upon reference to the following Detailed Description, when read in light of the attached drawings.
Brief Description of the Drawings 1o FIG. 1 is an isometric 'view of a disposable feminine hygiene article of 'the prior art, such as is described in the aforesaid WO 94/13237 application.
FIG. 2 is a plan view o:E a disposable feminine hygiene article prepared in accordance with the invention.
FIG. 3 is a plan view s=Lmilar to that of Fig. 2, 2o but with the wings unfolded as they might be prior to attachment to an undergarment., further illustrating the offset effect of the adhesive areas.
FIGS. 4 through 7 are p~_an views similar to that of Fig. 2, but illustrating alternate embodiments.
Description of the Preferred Embodiments The invention is described hereinafter in connection with certain preferred embodiments, in which the wings are back-attached by a particular method of folding wings that are initially contiguous extensions of the backing sheet, about the peripheral edge of the main body portion to adhesively secure the wings to a portion of the backing sheet, creating a fold line that 1o is interior of the peripheral edge, and a bias to force the wing towards the backing sheet. Also, certain adhesive patterns are described that are preferred to achieve the adhesive offsets. In addition, the invention is applicable regardless of how the wings achieve their back-attached configuration, and regardless of the actual pat~~erns of adhesive areas, so long as those of the wings a:re offset from those of the backing sheet when the wings are folded towards the backing sheet.
Fig. 1 illustrates a problem of the prior art construction. Feminine hygiE~ne article 10 comprises a main body portion 12 comprising a pad 14 of absorbent material and an impervious backing sheet 16 on which pad 14 is mounted. Body portion 12 has peripheral edges 18 that define the boundary of t:he portion 12. In addition, attachment wings 20,22 are formed as contiguous extensions of sheet 16, and fold about a fold line 24 back toward the backing sheet 16. An adhesive area 28 is provided on each wing, facing towards sheet 16, and a much larger area 30 of adhesive is formed on backing sheet 16, facing the wings.
In use, wings 20,22 are folded as shown, with an undergarment interposed between body portion 12 and the wings, to attach article 10 to the garment. However, if to this should happen prematurely, that is, without the garment in place, then adhesive area 20 or 22, or both, can contact adhesive area 30, and because of their tackiness at room temperature, irretrievably stick to each other. (As used herein, "room temperature" means, any temperature at which a u;~er can be expected to apply the article to an undergarment, including from 0°C up to about 38°C.) Although this problem is shown in the context of an article wherein the wings are not back-attached, but rather, are contiguous wings, a similar 2o problem occurs with certain back-attached wings of the prior art.
In contrast, an article 10 manufactured in accord with the invention, Figs. 2-3, comprises a main body portion 12 having an absorbent material pad 14 (shown in phantom, Fig. 3) attached in a conventional manner to backing sheet 16, preferably by being sandwiched between - 1.1 -the backing sheet 16 and a conventional porous cover sheet 17. The cover sheet and the backing sheet are laminated together in a conventional manner, and it is this laminate that is used to form wings 120, 122. The boundary of portion 12 is defined by peripheral edge 18.
Wings 120 and 122 are back-attached wings, formed by folding contiguous portions ~~f sheet 16 about edge 18 with adhesive located between edge 18 and an inside demarcation line 124, and securing the two portions of to sheet 16 so folded together between line 124 and edge 18. This then defines a zonE~ of attachment having a width "t" and the wings are back-attached, all as is conventional. As shown in F_Lg. 3, line 124 becomes the fold line for the unfolding, and folding, of the wings relative to main body portion 12, with the bias being to fold the wings up against backing sheet 16 as shown in Fig. 2.
An adhesive area 128 is provided on each wing, as 2o well as area 130 on backing :>heet 16. Areas 130 cover at least 500 of the backing :sheet of portion 12 exposed to an undergarment, for better sticking.
The materials used for absorbent material 14, backing sheet 16, the adhesive areas, and release sheets, if any, are conventional and thus need no further description.
Key to the invention is that adhesive areas 128,130 are disposed to be offset from each other when the wings are folded as shown, and as biased, in Fig. 2. In this particular embodiment, as shown in Fig. 3, the offset characteristic is achieved b~~ positioning areas 128,130 so that they are displaced from each other measured along a longitudinal axis 140 that is generally aligned with the direction of extens=ion of body portion 12.
More specifically, areas 128 which are generally 1o centrally located along axis 140, are spaced apart a distance D1 from the positioning of areas 130 on backing sheet 16, which are distally located away from the center. Stated in other words, non-adhesive areas 142,144 are located on backing sheet 16 and wings 120,122, respectively, so as to offset the adhesive areas.
Such non-adhesive areas can be formed either by leaving those areas uncoated, as shown, or by coating 2o all areas first with a pressure-sensitive adhesive tacky at room temperature, and over-coating that adhesive in areas 142 and 144, with a conventional non-pressure sensitive hot-melt adhesive that is non-tacky at room temperature. This leaves areas 128,130 as being coated only with the pressure-sensitive adhesive that is tacky at room-temperature.
- ~_3 -Another alternative is to form the non-adhesive areas with a release coated surface such as a coating of a silicone release agent. For example, the release agent can be applied by coating the surface with a curable silicone emulsion that is cured in situ by UV
light, or by adhering to the surface a tape that has on its exposed surface a silicone release agent.
Because adhesive areas 128,130 are offset, it is to optional whether the article 10 is packaged so that adhesive areas are covered with a conventional release paper, or not.
It is not essential thai= the adhesive area on the backing sheet, and on the wings, be only two areas or a single contiguous area, respectively. As shown for example in Fig. 4, each area can be divided into plural areas. Parts similar to those previously described bear the same reference numeral, t:o which the distinguishing 2o suffix "A" is applied.
Thus, Fig. 4, article l0A comprises a main body portion 12A circumscribed by peripheral edge 18A, wings 120A and 120A being back-attached by adhering backing sheet 16A to itself inside of edge 18A to create fold line 124A, as in the previous embodiment. However, unlike the previous embodiment, the adhesive area on - :14 -each wing comprises two spaced apart areas 228,228', and the adhesive area on backing sheet 16A inside peripheral edge 18A is split into three spaced apart areas 130A, 130A, and 230. At least 500 of the area of sheet 16A on main body portion 12A is covered with adhesive areas 130A, 130A and 230. As before, the adhesive areas on the wings are offset from the adhesive areas on the backing sheet of the main body portion, by displacing the wing areas 228,228' along longitudinal axis 140A
to from the positions along that axis where the body portion areas 130A, 130A, and 230 are located. More specifically, wing areas 228,228' are displaced along axis 140A a distance D1 from main body portion area 230 and a distance D9 from the other two main body portion areas 130A, 130A.
Although distance D9 is shown as being larger than distance D1, this is not: essential and can be reversed. Indeed, there is no reason why the two 2o distances Dl,D1 on wing 120A need to equal each other or the corresponding distances l~l, D1 on wing 122A, other than for ease in manufacture. Likewise, distances for each wing 120A,122A need not equal each other or the distances D4, D9 on the other 'wing.
One advantage of Fig. 4's embodiment, which makes it a highly preferred embodiment, is that the additional adhesive area 230 on the main body portion helps the article adhere better to an undergarment, than is the case if area 230 is omitted.
It is not essential that the offsetting of the wing adhesive areas from those on the main body portion, be achieved by displacement longitudinally along the longitudinal axis. Instead, Fig. 5, the displacement can be measured transversely from the axis. Parts to similar to those previously described bear the same reference numeral, to which the distinguishing suffix ~~B" is applied. Thus, article lOB comprises a main body portion 12B circumscribed by peripheral edge 18B, and two back-attached wings 120B and 122B that fold away 15 from body portion 12B and longitudinal axis 140B, along fold line 124B, all in the manner described for the two previous embodiments. Each icing has a single adhesive area 128B. Main body portion 12B has on its backing sheet 16B a plurality of adhesive areas 130B,130B
2o similar to that of Fig. 3, and in addition, two additional areas 330,330' disposed between areas 130B,130B. The total adhesive area of 130B, 130B, and 330, 330' is more than 500 of the area of sheet 16B of body portion 12B.
Unlike the previous embodiments, the offsetting of the wing adhesive areas is achieved by locating them a predetermined minimum distance D2 from fold line 1248 that is different from, e.g., greater than, the maximum distance D-; that adhesive areas 330,330' are located from the same fold line. In this manner, when the wings are properly folded inwardly, areas 1288 will fall in the area shown in phantom, between adhesive areas 330,330'.
(It will be appreciated that. area 1288 must not extend so far out on the wing 1208 as to overlap, when folded back, adhesive area 330', an~~ likewise for adhesive area l0 1288 on wing 1228, relative to adhesive area 330. That is, maximum distance D~, c minimum distance DF;. ) To discourage a user from folding the wings back towards body portion 128 along fold lines other than fold line 1248, and thus potentially to overlap adhesive area 128B with one of areas 330 or 330', conventional stiffeners 340 are optionally formed in wing 1228 (shown) and wing 1208 (not shown), between fold line 1248 and adhesive 1288. For example, stiffeners 340 can 2o be embossed into the fabric of the wing.
As a further embodiment of the invention, it is of course, feasible, Fig. 6, to combine the features of both Figs. 4 and 5, so that the wing adhesive areas are offset from the adhesive areas on the main body portion measured both along the longitudinal axis, and as measured transversely from the wing fold lines. Parts similar to those previously described bear the same reference numeral, to which the distinguishing suffix C
is appended.
Thus, article 10C comprises main body portion 12C
and back-attached wings 120C and 122C that fold along fold lines 124C. Adhesive areas 128C are placed on the wings, and adhesive areas are also placed on the main body portion. However, the latter comprise four spaced 1o apart areas 430, 430', 430", and 430"'. These four are displaced longitudinally along longitudinal axis 140C by a distance D1 from the locat=Lon along that axis of wing areas 128C. Furthermore, they are located a maximum distance Dz from fold line 124C, which is less than the minimum distance DZ for the 7_ocation of wing areas 128C.
Hence, when wing areas 128C are folded towards body portion 12C, they locate in 'the areas shown in phantom that are offset both along the longitudinal axis, and as measured transversely from the fold lines, compared to 2o areas 430, 430', 430", and 430"'.
Fig. 7 illustrates the ~~nvention when applied to a back-attached wing that is a piece of fabric separate from the main body, but which is attached such as by adhesive, or by a heat-seal, in a manner similar to U.S.
Patent No. 4,900,320. Similar parts have the same reference numeral but for the appendix D.
Thus, article lOD has main body portion 12D with back-attached wings 120D,122D separately formed and adhered along thickness "t", to the backing sheet 16D of body potion 12D, producing a. fold line 124D inside peripheral edge 18D. Wino adhesive arPa~ ~~Rn a",a ~~Q~n on each wing are offset fron. areas 130D and 230D by being displaced longitudinally along the axis 140D
distances D1 and D9, similar to the embodiment of Fig. 4.
Thus, unlike the case of the U.S. Patent No. 4,900,320, 1o the wing adhesive areas are offset from the main body adhesive areas, when the former are folded towards the latter.
The invention disclosed herein may be practiced in the absence of any element wizich is not specifically disclosed herein.
The invention has been cjescribed in detail with particular reference to prefE~rred embodiments thereof, 2o but it will be understood that variations and modifications can be effected within the spirit and scope of the invention.
In accord with another aspect of the invention, there is provided a method of attaching a disposable feminine hygiene article to an undergarment, comprising the steps of: a) providing said article with a main body of absorbent material mounted on an impervious backing sheet, and opposing wings foldably projecting from said backing sheet to assist in attachment to an undergarment, said wings being each foldable towards said backing sheet along a fold line, said backing sheet and said wings each having pressure-sensitive adhesive areas optionally covered with removable release paper, said adhesive areas of said backing sheet of said main body occupying at least 50% of the total surface area of said backing sheet of said main body portion and at least a part of said adhesive areas of said backing sheet of said main body being located intermediate said wings; b) removing any release paper from all of said adhesive areas; c) attaching said adhesive area of said backing sheet to one side of a suitable undergarment; and d) attaching said adhesive areas of said wings to a side of said undergarment opposite to said one side by folding over each of said wings about said fold line so that, with said undergarment in-between, substantially all the adhesive areas of the wings are offset from the adhesive areas of said backing sheet; whereby any inadvertent folding over of said wings in the absence of an undergarment will not adhere a wing to the adhesive areas of said backing sheet because the adhesive areas of wings and backing sheet are not superimposed.
In accord with yet another aspect of the invention, there is provided a method of preventing contact of an adhesive area on a wing of a disposable feminine hygiene article, and an adhesive area on a backing sheet of said article, said article further including a main body portion bounded by a peripheral edge, said wing being hingedly attached to said backing sheet along a fold line located inside said peripheral edge and biased to fold along said fold line towards and in contact with said backing sheet, at least part of said backing sheet adhesive area being positioned intermediate said wings; the method comprising the steps: a) placing said adhesive on said backing sheet in predetermined areas on said backing sheet, and b) placing substantially all of said adhesive area on said wing at places that are offset from said predetermined adhesive areas on said backing sheet, so that contact between the wing and said backing sheet due to said bias in the absence of an undergarment, will not place adhesive in contact with adhesive.
As used herein, "substantially all adhesive areas ... are offset" means, a deliberate positioning such that the offset condition occurs for all the adhesive areas during normal manufacture and application of the article. It does not mean to exclude the case wherein a negligible amount of the adhesive areas happen to overlap due to either accidental variations during manufacture, or mis-applications during use of the article. As used herein, "negligible" means, a misplacement of the adhesive and thus an overlap that does not exceed about 5mm lineal distance.
Also, as used herein, a "fold line" can be curved or straight, and when referring to the fold line of the wing, it means the line along which the wing is first free to fold relative to the main body. Additionally there may be other portions of the wing more distal from the fold line and the main body, that also are foldable.
_7-Accordingly, it is an advantageous feature of the invention that a disposable feminine hygiene article with back-attached wings is provided that adheres to an undergarment by the use of adhesive areas, so constructed that the adhesive areas of the wings cannot g _ inadvertently and ruinously stick, when exposed for use, to the other adhesive areas in the absence of an undergarment between them.
Other advantageous features will become apparent upon reference to the following Detailed Description, when read in light of the attached drawings.
Brief Description of the Drawings 1o FIG. 1 is an isometric 'view of a disposable feminine hygiene article of 'the prior art, such as is described in the aforesaid WO 94/13237 application.
FIG. 2 is a plan view o:E a disposable feminine hygiene article prepared in accordance with the invention.
FIG. 3 is a plan view s=Lmilar to that of Fig. 2, 2o but with the wings unfolded as they might be prior to attachment to an undergarment., further illustrating the offset effect of the adhesive areas.
FIGS. 4 through 7 are p~_an views similar to that of Fig. 2, but illustrating alternate embodiments.
Description of the Preferred Embodiments The invention is described hereinafter in connection with certain preferred embodiments, in which the wings are back-attached by a particular method of folding wings that are initially contiguous extensions of the backing sheet, about the peripheral edge of the main body portion to adhesively secure the wings to a portion of the backing sheet, creating a fold line that 1o is interior of the peripheral edge, and a bias to force the wing towards the backing sheet. Also, certain adhesive patterns are described that are preferred to achieve the adhesive offsets. In addition, the invention is applicable regardless of how the wings achieve their back-attached configuration, and regardless of the actual pat~~erns of adhesive areas, so long as those of the wings a:re offset from those of the backing sheet when the wings are folded towards the backing sheet.
Fig. 1 illustrates a problem of the prior art construction. Feminine hygiE~ne article 10 comprises a main body portion 12 comprising a pad 14 of absorbent material and an impervious backing sheet 16 on which pad 14 is mounted. Body portion 12 has peripheral edges 18 that define the boundary of t:he portion 12. In addition, attachment wings 20,22 are formed as contiguous extensions of sheet 16, and fold about a fold line 24 back toward the backing sheet 16. An adhesive area 28 is provided on each wing, facing towards sheet 16, and a much larger area 30 of adhesive is formed on backing sheet 16, facing the wings.
In use, wings 20,22 are folded as shown, with an undergarment interposed between body portion 12 and the wings, to attach article 10 to the garment. However, if to this should happen prematurely, that is, without the garment in place, then adhesive area 20 or 22, or both, can contact adhesive area 30, and because of their tackiness at room temperature, irretrievably stick to each other. (As used herein, "room temperature" means, any temperature at which a u;~er can be expected to apply the article to an undergarment, including from 0°C up to about 38°C.) Although this problem is shown in the context of an article wherein the wings are not back-attached, but rather, are contiguous wings, a similar 2o problem occurs with certain back-attached wings of the prior art.
In contrast, an article 10 manufactured in accord with the invention, Figs. 2-3, comprises a main body portion 12 having an absorbent material pad 14 (shown in phantom, Fig. 3) attached in a conventional manner to backing sheet 16, preferably by being sandwiched between - 1.1 -the backing sheet 16 and a conventional porous cover sheet 17. The cover sheet and the backing sheet are laminated together in a conventional manner, and it is this laminate that is used to form wings 120, 122. The boundary of portion 12 is defined by peripheral edge 18.
Wings 120 and 122 are back-attached wings, formed by folding contiguous portions ~~f sheet 16 about edge 18 with adhesive located between edge 18 and an inside demarcation line 124, and securing the two portions of to sheet 16 so folded together between line 124 and edge 18. This then defines a zonE~ of attachment having a width "t" and the wings are back-attached, all as is conventional. As shown in F_Lg. 3, line 124 becomes the fold line for the unfolding, and folding, of the wings relative to main body portion 12, with the bias being to fold the wings up against backing sheet 16 as shown in Fig. 2.
An adhesive area 128 is provided on each wing, as 2o well as area 130 on backing :>heet 16. Areas 130 cover at least 500 of the backing :sheet of portion 12 exposed to an undergarment, for better sticking.
The materials used for absorbent material 14, backing sheet 16, the adhesive areas, and release sheets, if any, are conventional and thus need no further description.
Key to the invention is that adhesive areas 128,130 are disposed to be offset from each other when the wings are folded as shown, and as biased, in Fig. 2. In this particular embodiment, as shown in Fig. 3, the offset characteristic is achieved b~~ positioning areas 128,130 so that they are displaced from each other measured along a longitudinal axis 140 that is generally aligned with the direction of extens=ion of body portion 12.
More specifically, areas 128 which are generally 1o centrally located along axis 140, are spaced apart a distance D1 from the positioning of areas 130 on backing sheet 16, which are distally located away from the center. Stated in other words, non-adhesive areas 142,144 are located on backing sheet 16 and wings 120,122, respectively, so as to offset the adhesive areas.
Such non-adhesive areas can be formed either by leaving those areas uncoated, as shown, or by coating 2o all areas first with a pressure-sensitive adhesive tacky at room temperature, and over-coating that adhesive in areas 142 and 144, with a conventional non-pressure sensitive hot-melt adhesive that is non-tacky at room temperature. This leaves areas 128,130 as being coated only with the pressure-sensitive adhesive that is tacky at room-temperature.
- ~_3 -Another alternative is to form the non-adhesive areas with a release coated surface such as a coating of a silicone release agent. For example, the release agent can be applied by coating the surface with a curable silicone emulsion that is cured in situ by UV
light, or by adhering to the surface a tape that has on its exposed surface a silicone release agent.
Because adhesive areas 128,130 are offset, it is to optional whether the article 10 is packaged so that adhesive areas are covered with a conventional release paper, or not.
It is not essential thai= the adhesive area on the backing sheet, and on the wings, be only two areas or a single contiguous area, respectively. As shown for example in Fig. 4, each area can be divided into plural areas. Parts similar to those previously described bear the same reference numeral, t:o which the distinguishing 2o suffix "A" is applied.
Thus, Fig. 4, article l0A comprises a main body portion 12A circumscribed by peripheral edge 18A, wings 120A and 120A being back-attached by adhering backing sheet 16A to itself inside of edge 18A to create fold line 124A, as in the previous embodiment. However, unlike the previous embodiment, the adhesive area on - :14 -each wing comprises two spaced apart areas 228,228', and the adhesive area on backing sheet 16A inside peripheral edge 18A is split into three spaced apart areas 130A, 130A, and 230. At least 500 of the area of sheet 16A on main body portion 12A is covered with adhesive areas 130A, 130A and 230. As before, the adhesive areas on the wings are offset from the adhesive areas on the backing sheet of the main body portion, by displacing the wing areas 228,228' along longitudinal axis 140A
to from the positions along that axis where the body portion areas 130A, 130A, and 230 are located. More specifically, wing areas 228,228' are displaced along axis 140A a distance D1 from main body portion area 230 and a distance D9 from the other two main body portion areas 130A, 130A.
Although distance D9 is shown as being larger than distance D1, this is not: essential and can be reversed. Indeed, there is no reason why the two 2o distances Dl,D1 on wing 120A need to equal each other or the corresponding distances l~l, D1 on wing 122A, other than for ease in manufacture. Likewise, distances for each wing 120A,122A need not equal each other or the distances D4, D9 on the other 'wing.
One advantage of Fig. 4's embodiment, which makes it a highly preferred embodiment, is that the additional adhesive area 230 on the main body portion helps the article adhere better to an undergarment, than is the case if area 230 is omitted.
It is not essential that the offsetting of the wing adhesive areas from those on the main body portion, be achieved by displacement longitudinally along the longitudinal axis. Instead, Fig. 5, the displacement can be measured transversely from the axis. Parts to similar to those previously described bear the same reference numeral, to which the distinguishing suffix ~~B" is applied. Thus, article lOB comprises a main body portion 12B circumscribed by peripheral edge 18B, and two back-attached wings 120B and 122B that fold away 15 from body portion 12B and longitudinal axis 140B, along fold line 124B, all in the manner described for the two previous embodiments. Each icing has a single adhesive area 128B. Main body portion 12B has on its backing sheet 16B a plurality of adhesive areas 130B,130B
2o similar to that of Fig. 3, and in addition, two additional areas 330,330' disposed between areas 130B,130B. The total adhesive area of 130B, 130B, and 330, 330' is more than 500 of the area of sheet 16B of body portion 12B.
Unlike the previous embodiments, the offsetting of the wing adhesive areas is achieved by locating them a predetermined minimum distance D2 from fold line 1248 that is different from, e.g., greater than, the maximum distance D-; that adhesive areas 330,330' are located from the same fold line. In this manner, when the wings are properly folded inwardly, areas 1288 will fall in the area shown in phantom, between adhesive areas 330,330'.
(It will be appreciated that. area 1288 must not extend so far out on the wing 1208 as to overlap, when folded back, adhesive area 330', an~~ likewise for adhesive area l0 1288 on wing 1228, relative to adhesive area 330. That is, maximum distance D~, c minimum distance DF;. ) To discourage a user from folding the wings back towards body portion 128 along fold lines other than fold line 1248, and thus potentially to overlap adhesive area 128B with one of areas 330 or 330', conventional stiffeners 340 are optionally formed in wing 1228 (shown) and wing 1208 (not shown), between fold line 1248 and adhesive 1288. For example, stiffeners 340 can 2o be embossed into the fabric of the wing.
As a further embodiment of the invention, it is of course, feasible, Fig. 6, to combine the features of both Figs. 4 and 5, so that the wing adhesive areas are offset from the adhesive areas on the main body portion measured both along the longitudinal axis, and as measured transversely from the wing fold lines. Parts similar to those previously described bear the same reference numeral, to which the distinguishing suffix C
is appended.
Thus, article 10C comprises main body portion 12C
and back-attached wings 120C and 122C that fold along fold lines 124C. Adhesive areas 128C are placed on the wings, and adhesive areas are also placed on the main body portion. However, the latter comprise four spaced 1o apart areas 430, 430', 430", and 430"'. These four are displaced longitudinally along longitudinal axis 140C by a distance D1 from the locat=Lon along that axis of wing areas 128C. Furthermore, they are located a maximum distance Dz from fold line 124C, which is less than the minimum distance DZ for the 7_ocation of wing areas 128C.
Hence, when wing areas 128C are folded towards body portion 12C, they locate in 'the areas shown in phantom that are offset both along the longitudinal axis, and as measured transversely from the fold lines, compared to 2o areas 430, 430', 430", and 430"'.
Fig. 7 illustrates the ~~nvention when applied to a back-attached wing that is a piece of fabric separate from the main body, but which is attached such as by adhesive, or by a heat-seal, in a manner similar to U.S.
Patent No. 4,900,320. Similar parts have the same reference numeral but for the appendix D.
Thus, article lOD has main body portion 12D with back-attached wings 120D,122D separately formed and adhered along thickness "t", to the backing sheet 16D of body potion 12D, producing a. fold line 124D inside peripheral edge 18D. Wino adhesive arPa~ ~~Rn a",a ~~Q~n on each wing are offset fron. areas 130D and 230D by being displaced longitudinally along the axis 140D
distances D1 and D9, similar to the embodiment of Fig. 4.
Thus, unlike the case of the U.S. Patent No. 4,900,320, 1o the wing adhesive areas are offset from the main body adhesive areas, when the former are folded towards the latter.
The invention disclosed herein may be practiced in the absence of any element wizich is not specifically disclosed herein.
The invention has been cjescribed in detail with particular reference to prefE~rred embodiments thereof, 2o but it will be understood that variations and modifications can be effected within the spirit and scope of the invention.
Claims (17)
1. A disposable feminine hygiene article comprising:
a main body portion comprising an absorbent material and an impervious backing sheet on which said absorbent material is mounted, said main body portion being bounded by a peripheral edge, and wings, each wing extending from and hingedly attached to said backing sheet along a fold line inside of said peripheral edge, portions of said backing sheet and of said wings being provided with adhesive areas sufficient to bind said article to an undergarment to hold said article in place, said portions of said backing sheet comprising one or more sections of the backing sheet located intermediate said wings, substantially all of said adhesive areas on said wings being offset from said adhesive areas on said backing sheet so that if said wings are folded about said fold lines towards said adhesive areas on said backing sheet without an undergarment in place and with any release paper removed, said adhesive areas on said wings cannot contact said adhesive areas on said backing sheet.
a main body portion comprising an absorbent material and an impervious backing sheet on which said absorbent material is mounted, said main body portion being bounded by a peripheral edge, and wings, each wing extending from and hingedly attached to said backing sheet along a fold line inside of said peripheral edge, portions of said backing sheet and of said wings being provided with adhesive areas sufficient to bind said article to an undergarment to hold said article in place, said portions of said backing sheet comprising one or more sections of the backing sheet located intermediate said wings, substantially all of said adhesive areas on said wings being offset from said adhesive areas on said backing sheet so that if said wings are folded about said fold lines towards said adhesive areas on said backing sheet without an undergarment in place and with any release paper removed, said adhesive areas on said wings cannot contact said adhesive areas on said backing sheet.
2. An article as defined in claim 1, wherein said wings comprise a contiguous extension of said backing sheet, a portion of said wings being folded about and adhesively secured to a portion of said backing sheet so as to permanently overlap a portion of said backing sheet between said fold line and said portion of said peripheral edge, said wings being biased to fold along said fold line towards and in contact with said backing sheet, so that the offset of said adhesive areas prevents adhesive-to-adhesive contact between wing and backing sheet.
3. An article as defined in claim 1 or 2, wherein said body portion has a longitudinal axis, and wherein said adhesive areas on said wings are offset from said adhesive areas on said backing by being located at positions on said wings displaced along said axis from the positions where said backing adhesive areas are located.
4. An article as defined in claim 1 or 2, wherein said body portion has a longitudinal axis, and wherein said adhesive areas on said wings are offset from said adhesive areas on said backing by being located at predetermined distances from said fold line that are different from the predetermined distances from said fold line at which said backing adhesive areas are located.
5. An article as defined in claim 1 or 2, wherein at least 50% of the area of said backing sheet of said body portion is occupied by said adhesive areas.
6. An article as defined in claim 1 or 2, wherein said wings each further include stiffeners positioned to stiffen and keep each wing generally flat, so that a wing resists buckling and folding on itself such as can cause adhesive areas on the wing to misalign with the portions of the backing sheet not bearing any adhesive areas.
7. An article as defined in claim 1, wherein said adhesive areas on said wings are offset from said adhesive areas on said backing sheet by an area that is non-tacky at room temperature.
8. An article as defined in claim 7, wherein said area that is non-tacky at room temperature comprises a first layer of pressure-sensitive adhesive, and on top of said first layer, a layer of non-pressure sensitive hot melt adhesive that is non-tacky at room temperature.
9. An article as defined in claim 7, wherein said non-adhesive areas comprise said backing sheet coated with a release agent.
10. An article as defined in claim 8 or 9, wherein said adhesive areas are free of release paper.
11. An article as defined in claim 1, wherein said adhesive areas are free of release paper.
12. A method of attaching a disposable feminine hygiene article to an undergarment, comprising the steps of:
a) providing said article with a main body of absorbent material mounted on an impervious backing sheet, and opposing wings foldably projecting from said backing sheet to assist in attachment to an undergarment, said wings being each foldable towards said backing sheet along a fold line, said backing sheet and said wings each having pressure-sensitive adhesive areas optionally covered with removable release paper, said adhesive areas of said backing sheet of said main body occupying at least 50% of the total surface area of said backing sheet of said main body portion and at least a part of said adhesive areas of said backing sheet of said main body being located intermediate said wings;
b) removing any release paper from all of said adhesive areas;
c) attaching said adhesive area of said backing sheet to one side of a suitable undergarment; and d) attaching said adhesive areas of said wings to a side of said undergarment opposite to said one side by folding over each of said wings about said fold line so that, with said undergarment in-between, substantially all the adhesive areas of the wings are offset from the adhesive areas of said backing sheet;
whereby any inadvertent folding over of said wings in the absence of an undergarment will not adhere a wing to the adhesive areas of said backing sheet because the adhesive areas of wings and backing sheet are not superimposed.
a) providing said article with a main body of absorbent material mounted on an impervious backing sheet, and opposing wings foldably projecting from said backing sheet to assist in attachment to an undergarment, said wings being each foldable towards said backing sheet along a fold line, said backing sheet and said wings each having pressure-sensitive adhesive areas optionally covered with removable release paper, said adhesive areas of said backing sheet of said main body occupying at least 50% of the total surface area of said backing sheet of said main body portion and at least a part of said adhesive areas of said backing sheet of said main body being located intermediate said wings;
b) removing any release paper from all of said adhesive areas;
c) attaching said adhesive area of said backing sheet to one side of a suitable undergarment; and d) attaching said adhesive areas of said wings to a side of said undergarment opposite to said one side by folding over each of said wings about said fold line so that, with said undergarment in-between, substantially all the adhesive areas of the wings are offset from the adhesive areas of said backing sheet;
whereby any inadvertent folding over of said wings in the absence of an undergarment will not adhere a wing to the adhesive areas of said backing sheet because the adhesive areas of wings and backing sheet are not superimposed.
13. A method of preventing contact of an adhesive area on a wing of a disposable feminine hygiene article, and an adhesive area on a backing sheet of said article, said article further including a main body portion bounded by a peripheral edge, said wing being hingedly attached to said backing sheet along a fold line located inside said peripheral edge and biased to fold along said fold line towards and in contact with said backing sheet, at least part of said backing sheet adhesive area being positioned intermediate said wings; the method comprising the steps:
a) placing said adhesive on said backing sheet in predetermined areas on said backing sheet, and b) placing substantially all of said adhesive area on said wing at places that are offset from said predetermined adhesive areas on said backing sheet, so that contact between the wing and said backing sheet due to said bias in the absence of an undergarment, will not place adhesive in contact with adhesive.
a) placing said adhesive on said backing sheet in predetermined areas on said backing sheet, and b) placing substantially all of said adhesive area on said wing at places that are offset from said predetermined adhesive areas on said backing sheet, so that contact between the wing and said backing sheet due to said bias in the absence of an undergarment, will not place adhesive in contact with adhesive.
14. A method as defined in claim 13, wherein said predetermined areas occupy at least 50% of the surface area of said backing sheet of said main body portion.
15. A method as defined in claim 13, wherein either step a) or step b), or both, comprise alternating said adhesive areas with areas that are non-tacky at room temperature areas on said backing sheet or said wings, respectively.
16. A method as defined in claim 15, wherein said areas that are non-tacky at room temperature comprise a first layer of pressure-sensitive adhesive, and on top of said first layer, a layer of non-pressure sensitive hot melt adhesive that is non-tacky at room temperature.
17. A method as defined in claim 13 or 15, and further including the step of c) packaging said article without placing release paper on said adhesive areas.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/104,122 | 1998-06-24 | ||
| US09/104,122 US6176850B1 (en) | 1998-06-24 | 1998-06-24 | Adhesive patterns for feminine articles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2275560A1 CA2275560A1 (en) | 1999-12-24 |
| CA2275560C true CA2275560C (en) | 2006-09-05 |
Family
ID=22298778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002275560A Expired - Fee Related CA2275560C (en) | 1998-06-24 | 1999-06-18 | Improved adhesive patterns for feminine hygiene articles |
Country Status (11)
| Country | Link |
|---|---|
| US (2) | US6176850B1 (en) |
| EP (1) | EP0966942B1 (en) |
| JP (1) | JP4478244B2 (en) |
| CN (1) | CN1162133C (en) |
| AR (1) | AR019702A1 (en) |
| AU (1) | AU760657B2 (en) |
| BR (1) | BR9902457A (en) |
| CA (1) | CA2275560C (en) |
| DE (1) | DE69927748T2 (en) |
| RU (1) | RU2193381C2 (en) |
| ZA (1) | ZA994153B (en) |
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| CA2266965C (en) * | 1999-03-25 | 2007-12-11 | Johnson & Johnson Inc. | Sanitary absorbent article having tear-resistant flaps |
| US6592561B2 (en) * | 2001-03-30 | 2003-07-15 | Johnson & Johnson, Inc. | Sanitary absorbent article having a tear-resistant flange seal |
| JP4464586B2 (en) * | 2001-07-31 | 2010-05-19 | 大王製紙株式会社 | Absorbent packaging structure |
| BR0213892A (en) * | 2001-11-05 | 2004-08-31 | Procter & Gamble | Articles comprising impregnated thermoplastic elements and method of manufacture of articles |
| US7805768B2 (en) | 2002-06-24 | 2010-10-05 | Christine Martz | Liquid penetration shields for outer garments |
| US6681407B2 (en) * | 2002-06-24 | 2004-01-27 | Christine Martz | Waistless underwear alternative secret pants shield |
| US7240375B2 (en) * | 2002-07-24 | 2007-07-10 | Christine Martz | Waistless underwear alternative secret pants shield |
| US20040068247A1 (en) * | 2002-10-08 | 2004-04-08 | Trudy Connor | Garment liner |
| JP4731874B2 (en) * | 2004-10-15 | 2011-07-27 | ユニ・チャーム株式会社 | Disposable wearing articles |
| US8162911B2 (en) * | 2005-10-03 | 2012-04-24 | Kimberly-Clark Worldwide, Inc. | Compact folded absorbent article |
| US7708727B2 (en) * | 2006-04-19 | 2010-05-04 | Kimberly-Clark Worldwide, Inc. | Compact-folded article with wrap layer |
| US7427277B2 (en) * | 2006-04-19 | 2008-09-23 | Kimberly-Clark Worldwide, Inc. | Compact-folded article and pouch |
| JP4614860B2 (en) * | 2005-10-17 | 2011-01-19 | 花王株式会社 | Method for manufacturing absorbent article |
| US8231591B2 (en) * | 2006-04-21 | 2012-07-31 | Kimberly-Clark Worldwide, Inc. | Absorbent article with lengthwise, compact-fold |
| US20070250031A1 (en) * | 2006-04-21 | 2007-10-25 | Woltman Gary R | Absorbent article with lengthwise, compact-fold and wrap layer |
| US8115050B2 (en) * | 2009-12-07 | 2012-02-14 | The Natural Baby Company, LLC | Soaker pad for cloth diaper |
| JP2012157641A (en) * | 2011-02-02 | 2012-08-23 | Unicharm Corp | Absorbent article |
| WO2012105463A1 (en) * | 2011-02-01 | 2012-08-09 | Unicharm Corporation | Absorbent article |
| JP5791332B2 (en) * | 2011-03-31 | 2015-10-07 | ユニ・チャーム株式会社 | Absorbent article and method for manufacturing absorbent article |
| JP5755005B2 (en) * | 2011-03-31 | 2015-07-29 | ユニ・チャーム株式会社 | Absorbent articles |
| JP5832164B2 (en) * | 2011-06-30 | 2015-12-16 | 大王製紙株式会社 | Absorbent articles |
| WO2015190970A1 (en) | 2014-06-13 | 2015-12-17 | Sca Hygiene Products Ab | A packaging unit for hygiene articles and a method of forming a packaging unit |
| EP3154494B1 (en) | 2014-06-13 | 2019-08-14 | Essity Hygiene and Health Aktiebolag | A packaging unit for hygiene articles and a method of forming a packaging unit |
| MY173651A (en) | 2014-06-13 | 2020-02-13 | Essity Hygiene & Health Ab | A packaging unit having improved sealing, and a method for forming such a packaging unit |
| MX2016016180A (en) | 2014-06-13 | 2017-03-08 | Sca Hygiene Prod Ab | A packaging unit having improved sealing and a user prompting device, and a method for forming such a packaging unit. |
| MX365191B (en) * | 2014-06-13 | 2019-05-27 | Essity Hygiene & Health Ab | Method for forming a wrapping sheet having improved sealing. |
| AU2015397132B2 (en) | 2015-05-29 | 2020-07-30 | Kimberly-Clark Worldwide, Inc. | Flexible absorbent article with a lobed absorbent layer |
| USD777910S1 (en) | 2015-05-29 | 2017-01-31 | Kimberly-Clark Worldwide, Inc. | Absorbent article |
| USD789523S1 (en) | 2015-05-29 | 2017-06-13 | Kimberly-Clark Worldwide, Inc. | Absorbent article |
| USD772403S1 (en) | 2015-05-29 | 2016-11-22 | Kimberly-Clark Worldwide, Inc. | Absorbent article |
| USD772402S1 (en) | 2015-05-29 | 2016-11-22 | Kimberly-Clark Worldwide, Inc. | Absorbent article |
| USD772401S1 (en) | 2015-05-29 | 2016-11-22 | Kimberly-Clark Worldwide, Inc. | Absorbent article |
| US20210121335A1 (en) | 2019-10-29 | 2021-04-29 | Angelica M. Anousis | Absorbent pad including a fastening tab having an aperture |
| USD958334S1 (en) | 2020-04-24 | 2022-07-19 | Angelica M. Anousis | Sanitary pad |
| USD958335S1 (en) | 2020-04-24 | 2022-07-19 | Angelica M. Anousis | Sanitary pad |
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| US4900320C1 (en) | 1986-06-16 | 2001-07-03 | Mcneil Ppc Inc | Sanitary napkin with panty gathering flaps |
| US5478336A (en) * | 1987-09-25 | 1995-12-26 | Kaysersberg, S.A. | Sanitary or similar towel with fluid-impermeable side flaps |
| US4911701A (en) * | 1988-02-26 | 1990-03-27 | Mcneil-Ppc, Inc. | Sanitary napkin having elastic shaping means |
| NZ229232A (en) * | 1988-06-06 | 1992-06-25 | Mcneil Ppc Inc | Sanitary napkin with flaps: single release strip covers adhesive on flap and on absorbent element |
| GB2273659B (en) * | 1990-06-07 | 1995-01-11 | Kao Corp | Sanitary napkin |
| CA2049168A1 (en) | 1990-08-17 | 1992-02-18 | Deborah Jean Parr | Absorbent articles with integral release system and methods of making same |
| US5217448A (en) * | 1990-08-17 | 1993-06-08 | Mcneill-Ppc, Inc. | Absorbent products having optional side panel usage |
| CA2049240A1 (en) | 1990-08-17 | 1992-02-18 | Thomas Joseph Luceri | Absorbent articles with integral release system and methods of making same |
| JP3181626B2 (en) * | 1990-09-27 | 2001-07-03 | 花王株式会社 | Absorbent articles |
| AR246180A1 (en) * | 1991-11-29 | 1994-07-29 | Procter & Gamble | Absorbent article with elasticised side flaps. |
| US5429630A (en) * | 1992-05-29 | 1995-07-04 | Kimberly-Clark Corporation | Absorbent article and a method of removing said article from an undergarment |
| JP3238404B2 (en) | 1992-12-17 | 2001-12-17 | ザ、プロクター、エンド、ギャンブル、カンパニー | Absorbent article with releasable adhesive patch |
| US5330461A (en) * | 1992-12-22 | 1994-07-19 | The Procter & Gamble Company | Absorbent article having folded side flaps |
| NZ250700A (en) | 1993-01-21 | 1996-05-28 | Mcneil Ppc Inc | Absorbent pad; garment-facing planar surface has adhesive attachments only on anterior and posterior end regions |
| CN1127987A (en) | 1993-05-28 | 1996-07-31 | 普罗克特和甘保尔公司 | Absorbent article having a unitary release material joined to each side flap |
| US7449013B2 (en) * | 1996-03-30 | 2008-11-11 | The Procter & Gamble Company | Disposable absorbent article with wings predisposed towards their in-use-position |
-
1998
- 1998-06-24 US US09/104,122 patent/US6176850B1/en not_active Expired - Lifetime
-
1999
- 1999-06-16 AU AU35079/99A patent/AU760657B2/en not_active Ceased
- 1999-06-18 CA CA002275560A patent/CA2275560C/en not_active Expired - Fee Related
- 1999-06-23 ZA ZA9904153A patent/ZA994153B/en unknown
- 1999-06-23 RU RU99113443/14A patent/RU2193381C2/en not_active IP Right Cessation
- 1999-06-23 BR BR9902457-8A patent/BR9902457A/en not_active IP Right Cessation
- 1999-06-23 JP JP17723199A patent/JP4478244B2/en not_active Expired - Lifetime
- 1999-06-23 EP EP99111939A patent/EP0966942B1/en not_active Revoked
- 1999-06-23 AR ARP990103005A patent/AR019702A1/en active IP Right Grant
- 1999-06-23 DE DE69927748T patent/DE69927748T2/en not_active Revoked
- 1999-06-24 CN CNB991089111A patent/CN1162133C/en not_active Expired - Fee Related
-
2000
- 2000-10-30 US US09/702,032 patent/US6394990B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| RU2193381C2 (en) | 2002-11-27 |
| EP0966942A3 (en) | 2001-07-11 |
| JP4478244B2 (en) | 2010-06-09 |
| DE69927748T2 (en) | 2006-07-20 |
| EP0966942B1 (en) | 2005-10-19 |
| CA2275560A1 (en) | 1999-12-24 |
| BR9902457A (en) | 2000-01-18 |
| EP0966942A2 (en) | 1999-12-29 |
| AU3507999A (en) | 2000-01-20 |
| CN1240124A (en) | 2000-01-05 |
| ZA994153B (en) | 2000-12-27 |
| AU760657B2 (en) | 2003-05-22 |
| DE69927748D1 (en) | 2006-03-02 |
| AR019702A1 (en) | 2002-03-13 |
| CN1162133C (en) | 2004-08-18 |
| US6394990B1 (en) | 2002-05-28 |
| JP2000024036A (en) | 2000-01-25 |
| US6176850B1 (en) | 2001-01-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20140618 |