WO2000066279A2 - Method for treating surfaces and device for carrying out said method - Google Patents
Method for treating surfaces and device for carrying out said method Download PDFInfo
- Publication number
- WO2000066279A2 WO2000066279A2 PCT/AT2000/000108 AT0000108W WO0066279A2 WO 2000066279 A2 WO2000066279 A2 WO 2000066279A2 AT 0000108 W AT0000108 W AT 0000108W WO 0066279 A2 WO0066279 A2 WO 0066279A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressure
- pressure chamber
- front wall
- surface area
- auxiliary
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44D—PAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
- B44D7/00—Preserving paintings, e.g. by varnishing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/005—Repairing damaged coatings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/10—Applying flat materials, e.g. leaflets, pieces of fabrics
- B44C1/105—Applying flat materials, e.g. leaflets, pieces of fabrics comprising an adhesive layer
Definitions
- the invention relates to a method for treating surfaces and an apparatus for performing this method.
- the condition required after the softening of the layer and the introduction of a liquid hardening agent either manually with special pressure Instruments (e.g. with a heating spatula), by weighting with weights, by placing them in a press (e.g. screw press) or by sucking a film onto the surface of the painting while sucking in the air from below through the craquelee cracks or from the edge of the painting (e.g. with a vacuum heating table) and only then check the result.
- special pressure Instruments e.g. with a heating spatula
- weighting with weights by placing them in a press (e.g. screw press) or by sucking a film onto the surface of the painting while sucking in the air from below through the craquelee cracks or from the edge of the painting (e.g. with a vacuum heating table) and only then check the result.
- the experience gained was then transferred to the next surface area of the object, which, however, could behave differently due to a different nature with regard to binders, pigments, layer thicknesses, application techniques, aging, etc.
- These previously known procedures were associated with typical limitations, disadvantages, dangers and secondary damage.
- the pressure was mostly exerted under locally uncontrolled conditions, i.e. without exact measurement, control, regulation and equal distribution of the pressure (in general), under inconsistent drying conditions (at the vacuum table), with the acceptance of shear forces (in the press) and without the possibility of immediate feedback on the mode of operation, eg a reduction in the contact pressure at first Signs of negative effects below the resolution of the free human eye.
- the invention now aims to avoid the disadvantages described, at the same time to include additional measures for surface treatment and thereby to achieve a multitude of advantages over the known treatment options.
- the selection of materials whose surfaces can be treated according to the invention should be extremely broad.
- the method according to the invention is characterized in that a surface area is exposed to defined pressure and temperature conditions, at least a part of the area being controllable at the same time by a light microscope or another imaging optical system, such as an infrared microscope. Due to the possibility of simultaneous observation of the object surface, an immediate reaction to the further course of the surface treatment can take place even with slight changes in the microscopic range. All steps of the method can be controlled and regulated separately, the complete automation of the method being possible if desired with the aid of a computer-assisted evaluation of the surface image.
- the pressure is expediently generated by a pressure medium, preferably pneumatically by a gas under pressure; but there are also cases in which it is advantageous if the pressure is built up hydraulically.
- a pressure medium is selected which itself interacts with substances on the surface area.
- Generating the pressure hydraulically is advantageous, for example, if the liquid pressure medium also serves as an auxiliary medium, if higher pressures are to be transmitted or to increase the accuracy of the pressure control.
- mechanical pressure generation for example by lowering a pressure chamber similar to the tube of a microscope with a fine drive, no pressure medium is required.
- a particular advantage of the method is that the individual steps can be automated, for example by independently controlling and / or regulating the pressure curve experimentally determined for the optimal surface treatment of an object with regard to the pressure values, the pressure gradient and the exposure times by a MaschinenDV-supported program.
- the temperature conditions are expediently set by means of a heated or cooled, gaseous or liquid auxiliary medium which, if appropriate, can simultaneously serve as a pressure medium.
- the temperature conditions are set by means of thermal radiation directed towards the surface area. Certain temperatures often have to be maintained over prescribed periods, which is why the course of the temperature conditions is controlled and / or regulated by a computer-aided program according to a further embodiment of the method according to the invention.
- auxiliary substances such as solvents, adhesives, dyes, impregnants or other active substances can also be transported to or from the treated surface.
- auxiliary materials are supplied by pressing on an additional movable auxiliary film on which the auxiliary material is located.
- substances can be transported in the opposite way from the surface area into the film or into the auxiliary medium, for example by diffusion processes, for example in order to dry a moist surface.
- the present invention also includes a separate device for carrying out the method according to the invention, which is characterized in that a pressure chamber, which is transparent at least in the direction of the radiation path, is arranged between the objective of a microscope or another imaging optical system and the surface area to be treated the surface area facing part of the front wall is designed to be movable for the purpose of pressure transmission.
- a pressure chamber which is transparent at least in the direction of the radiation path, is arranged between the objective of a microscope or another imaging optical system and the surface area to be treated the surface area facing part of the front wall is designed to be movable for the purpose of pressure transmission.
- the pressure is transferred to a surface area of the object, which is located on a fixed base or fixed by a holder, via the movable part of this pressure chamber.
- the front wall itself is designed to be movable as a flexible, pressure-resistant plastic film.
- the pressure chamber contains an electric radiant heater acting on the surface area to be treated.
- gaseous and / or liquid auxiliaries or auxiliary media can be supplied to the surface by means of permeation, diffusion and / or flow through fine openings through a pressure-resistant plastic film, such as a membrane film, which serves as the front wall of the pressure chamber, which media itself does this Can form pressure medium building pressure or can be part of the same.
- the surface area treated can be simultaneously moistened by a pressurized, water vapor-saturated gas that emerges from the movable part of the pressure chamber.
- a flexible, pressure-resistant plastic film capable of absorbing small amounts of solvent, auxiliary or active substance required for surface treatment, which may be swellable, impregnable or coatable, can also be provided.
- Auxiliary foils with auxiliary substances for surface treatment, such as solvents, adhesives or other active substances, can also be provided between the front wall of the pressure chamber and the surface area to be treated.
- the front wall is formed from two identical or different types of foils arranged at a short distance from one another and at least one bore with connecting pieces for auxiliary media leads into the cavity between these two foils.
- the auxiliary medium passes through the surface to be treated Closer film by permeation, diffusion and / or flow through Ivlikroporen in the course of the treatment directly to the surface to be treated.
- the front wall is designed as a flat or shaped plate, that is to say, for example adapted to the structure of the surface to be treated or provided with depressions for distributing a liquid auxiliary medium over the surface to be treated, an auxiliary medium can be guided into this plate from outside and passes through Bores or open pores in the same to the surface of the object.
- the plate serving as the front wall expediently has at least one hole on the side with a connecting piece, which leads through the plate to an outlet on the side of the plate facing the surface area.
- the side of the plate serving as the front wall facing the surface area to be treated is made of elastic material, for example of silicone rubber, in order not to mechanically damage the surface during the treatment.
- the pressure in the pressure chamber is built up pneumatically or hydraulically, the pressure chamber advantageously has at least one bore with connecting pieces through which the pressure medium can be fed in to increase the pressure and can be discharged again to reduce the pressure.
- pressure sensors are expediently arranged in the area of the pressure chamber and / or the supply and discharge lines. If the required heating conditions are set by heating the pressure medium, then temperature sensors are also expediently arranged in the area of the pressure chamber.
- the surface treatment method according to the invention is explained in more detail with reference to the embodiment of the device according to the invention shown in FIG. 1 using a practical example from the restoration of damaged surfaces of cultural property, for example the consolidation of the paint layer of a painting.
- the object with the painting layer (1) on top is on a solid worktop, the top layer of color of which has broken down into individual layers of paint (2) due to a fine network of craquelure cracks.
- a liquid adhesive (3c) can now be applied to the side of the auxiliary film (3b) placed on the painting in a holder (3a).
- the device according to the invention is then lowered to such an extent that the image of the surface area to be treated can be sharply adjusted during the printing treatment.
- a pressurized gas for example nitrogen from a pressurized gas bottle, is then introduced into the pressure chamber (5) via the pressure gas supply line (7) and the inlet valve (8) with the outlet valve (9) closed, for example nitrogen from a pressure gas bottle.
- the front wall bulges which here is designed as a gas-tight, flexible and pressure-resistant plastic film (12), for example made of polyethylene, which is fastened with the aid of a sealing ring (11), touches the auxiliary film (3b) and presses this with the liquid adhesive (3c) on the surface of the paint layer.
- the adhesive (3c) the colored floes (2) are fixed practically simultaneously by the two thin foils that optimally adapt to the shape of the colored floes, so that they cannot be detached from the image carrier, e.g. due to swelling processes, but only the gluing takes place.
- the contact pressure is now increased to a certain value measured with the pressure measuring device (pressure sensor) (13), the plastic film (12) finally covering the paint layer almost over the entire open cross-sectional area of the pressure chamber.
- the contact pressure can be reduced by closing the inlet valve (8) and opening the outlet valve (9) while partially arching the film (12) and lifting the auxiliary film (3b). be canceled again.
- a lighting device for example a ring light (14), is slidably arranged over a transparent area of the side wall, so that the illuminated paint layer surface through the stereomicroscope (4) or via the screen of one connected to it during the entire process Video camera can be observed in order to immediately reduce the contact pressure by opening the outlet valve (9), even at the first sign of even minor secondary damage, such as breaking individual clods of paint.
- a lighting device can be arranged within the pressure chamber (5) in order to achieve special lighting effects, such as grazing light.
- the existing residues of the solvent of the adhesive can be removed by mass transfer over the top of the painting, by either pressing a film (12) through which a permeation of the solvent vapor into a valve (8, 9) with slightly open valves through the pressure chamber (5) passed gas stream, for example a Nitrogen flow takes place, or by pressing on another auxiliary film (3b) which is particularly receptive to these solvent vapors, for example with swelling.
- connection between the microscope objective or another imaging optical system and the pressure chamber is particularly suitably rigid, but also designed to be detachable, for use as various microscope magnifications, for example as a screw connection, as a bayonet connection or as a lockable plug connection.
- the pressure-resistant microscope objective or the front lens of another imaging optical system can also be a component of the wall of the pressure chamber facing the microscope instead of an attachment lens.
- the movable part (15) of the pressure chamber comprising the front wall of the pressure chamber (5) can be provided, for example, with a flexible, pressure-resistant plastic film as the front wall, or - as shown - the front wall can be designed entirely as a flat plate (16) his.
- the mobility of the part (15) is achieved by means of a plug connection which, if necessary, can be made pressure-tight by a lubricant (17a) between the sliding or guide surfaces and has a return spring (17b) and a stop (17c); if the pressure is built up hydraulically by a liquid pressure medium, it can itself serve as a lubricant.
- a plug connection which, if necessary, can be made pressure-tight by a lubricant (17a) between the sliding or guide surfaces and has a return spring (17b) and a stop (17c); if the pressure is built up hydraulically by a liquid pressure medium, it can itself serve as a lubricant.
- the movable part (15) comprising the front wall being connected to the pressure chamber (5) in a pressure-tight manner via a bellows (18), for example made of metal or plastic; the upper edge of the bellows is firmly connected to the inner wall of the pressure chamber (5), for example welded, while the lower end of the bellows is pressure-tightly connected to the movable part (15).
- a bellows for example made of metal or plastic; the upper edge of the bellows is firmly connected to the inner wall of the pressure chamber (5), for example welded, while the lower end of the bellows is pressure-tightly connected to the movable part (15).
- the front wall of the pressure chamber (5) is formed from two identical or different types of films (19a, 19b) at a small distance from one another, with the cavity (20) between these two films and the two sealing rings (21a, 21b) eg two bores with connecting pieces (22a, 22b) lead to the supply and discharge of auxiliary media; as a result, the latter can also be conveyed during the surface treatment, for example by means of a metering pump, as a result of which the mass transfer between auxiliary medium and surface is improved while maintaining the contact pressure or a change to another auxiliary medium can also be carried out without interrupting the pressure treatment.
- Fig.4a shows inside the pressure chamber (5) a meandering heating conductor (23) which is so thin that it hardly interferes with the microscopic control of the surface.
- Fig.4b the heat radiation of an approximately annular heating conductor loop (24) is directed onto the surface by an annular concave mirror (25) arranged above it and molded into the inner wall of the pressure chamber.
- auxiliary foils (3b; 26; 30a, 30b) are provided between the front wall (12; 16) of the pressure chamber (5) and the surface area to be treated in order to ensure the fastest possible and uniform mass transfer during surface treatment;
- auxiliary foils 3b; 26; 30a, 30b
- the auxiliary film (26) is located below the pressure chamber (5) in the manner of film transport in a camera between a supply roll (27), a take-up roller (28a) with crank (28b) and three deflection rolls (29a, 29b, 29c) movably arranged, wherein a liquid auxiliary medium can be applied between the supply roll (27) and the first deflecting roll (29a) on the auxiliary film (26); in Fig. ⁇ b there are auxiliary foils (30a, 30b) on a movable, strip-shaped holder (31a), which is moved in the guide rails (31b), and according to Fig. ⁇ c on a circular, rotatable holder (32a), which around the Axis (32b) is rotatably arranged.
- the auxiliary films can be moved manually or by motor according to the invention.
- the entire process of the surface treatment according to the invention can not only be checked using the microscope, but can also be documented because the microscope or the other imaging optical system can be connected to a device suitable for image storage, such as a photo, film or video camera .
- the pressure chamber or a component of the device connected to it, such as the microscope or another imaging optical system is advantageously on a tripod, an x / y table or on a table fixed swivel arm in all directions.
- the positioning is carried out manually or particularly expediently by a computer-aided control and / or regulation.
- Fig.6 shows a simple embodiment of the device according to the invention.
- the output signals of the imaging optical system are used according to the invention for the EDP-supported positioning of the pressure chamber and / or for the treatment of the surface by pressure, heat or mass transfer.
- Treatment options that are largely independent of the material of the objects and the position and shape of their surface
- the application of the method and the device according to the invention for the treatment of surfaces is advantageous in many areas.
- Examples in the field of medicine and biology are the controlled in vivo treatment of the skin of patients or experimental animals as well as the leaf surface of plants with pressure, temperature, light and / or active ingredients, where under the contact pressure, for example, an elastic, soft film ( 12) the objects to be treated are also gently fixed.
- FIGS. 7a, 7b, 7c illustrate a medical application in three embodiments of the device according to the invention, for example suitable for dermatology closed-pore, flexible plastic elements that are glued to each other or to the skin (thick lines), with supply and discharge lines for the pressure or active and auxiliary media as well as a magnifying glass attachment as part of the imaging optical system.
- the device contains a plastic film as a front wall for controlling the contact pressure when the active or auxiliary substances are supplied or removed from the side
- Fig. 7b a plastic membrane film for a substance dependent on the chamber pressure or on the partial pressure or osmotic pressure Transition, as well as two foils in Fig.7c for the largely independent control of contact pressure and mass transfer (see Fig. 3).
- multi-stage therapy programs can also be used, for example, which are supported by additional pressure and temperature control and regulation and whose effects can be checked optically without removing the device .
- the device according to the invention can be used for the immediate treatment of skin diseases or injuries and - as a transdermal therapeutic system (TTS) - also for the administration of highly effective, systemically active drugs.
- TTS transdermal therapeutic system
- the method according to the invention also allows in the field of material testing, by controlled deformation under pressure with simultaneous observation e.g. Stress-optical investigations and strength tests also on sensitive or complicated shaped workpieces, e.g. made of transparent plastics. From the area of surface technology, the impregnation, the lamination or the testing of material surfaces can be mentioned, e.g. the corrosion behavior under the conditions of temperature, pressure and mass transfer of the gaseous and / or liquid auxiliary media which can be set according to the invention can be determined in a manner which is simpler and more reproducible in many cases than can be determined using the customary test methods.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50013859T DE50013859D1 (en) | 1999-04-29 | 2000-04-28 | METHOD FOR TREATING SURFACES AND DEVICE FOR CARRYING OUT THIS METHOD |
EP00922315A EP1144123B1 (en) | 1999-04-29 | 2000-04-28 | Method for treating surfaces and device for carrying out said method |
AU42748/00A AU4274800A (en) | 1999-04-29 | 2000-04-28 | Method for treating surfaces and device for carrying out said method |
AT00922315T ATE347937T1 (en) | 1999-04-29 | 2000-04-28 | METHOD FOR TREATING SURFACES AND DEVICE FOR PERFORMING THIS METHOD |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA762/99 | 1999-04-29 | ||
AT0076299A AT407012B (en) | 1999-04-29 | 1999-04-29 | METHOD FOR TREATING SURFACES AND DEVICE FOR CARRYING OUT THIS METHOD |
Publications (3)
Publication Number | Publication Date |
---|---|
WO2000066279A2 true WO2000066279A2 (en) | 2000-11-09 |
WO2000066279A8 WO2000066279A8 (en) | 2001-04-05 |
WO2000066279A3 WO2000066279A3 (en) | 2001-08-30 |
Family
ID=3499109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AT2000/000108 WO2000066279A2 (en) | 1999-04-29 | 2000-04-28 | Method for treating surfaces and device for carrying out said method |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1144123B1 (en) |
AT (2) | AT407012B (en) |
AU (1) | AU4274800A (en) |
DE (1) | DE50013859D1 (en) |
WO (1) | WO2000066279A2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005051406A1 (en) * | 2005-10-27 | 2007-05-03 | Forschungszentrum Rossendorf E.V. | Optical coupling element for a flow cell |
DE102005051386A1 (en) * | 2005-10-27 | 2007-05-03 | Forschungszentrum Rossendorf E.V. | additional microscope |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113145406B (en) * | 2021-03-26 | 2022-08-09 | 丘向忠 | UV glue coating method and device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4394234A (en) * | 1979-02-02 | 1983-07-19 | Hitachi, Ltd. | Method of processing electrically conductive material by glow discharge |
US6162488A (en) * | 1996-05-14 | 2000-12-19 | Boston University | Method for closed loop control of chemical vapor deposition process |
-
1999
- 1999-04-29 AT AT0076299A patent/AT407012B/en not_active Expired - Fee Related
-
2000
- 2000-04-28 EP EP00922315A patent/EP1144123B1/en not_active Expired - Lifetime
- 2000-04-28 WO PCT/AT2000/000108 patent/WO2000066279A2/en active IP Right Grant
- 2000-04-28 DE DE50013859T patent/DE50013859D1/en not_active Expired - Fee Related
- 2000-04-28 AT AT00922315T patent/ATE347937T1/en not_active IP Right Cessation
- 2000-04-28 AU AU42748/00A patent/AU4274800A/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4394234A (en) * | 1979-02-02 | 1983-07-19 | Hitachi, Ltd. | Method of processing electrically conductive material by glow discharge |
US6162488A (en) * | 1996-05-14 | 2000-12-19 | Boston University | Method for closed loop control of chemical vapor deposition process |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005051406A1 (en) * | 2005-10-27 | 2007-05-03 | Forschungszentrum Rossendorf E.V. | Optical coupling element for a flow cell |
DE102005051386A1 (en) * | 2005-10-27 | 2007-05-03 | Forschungszentrum Rossendorf E.V. | additional microscope |
Also Published As
Publication number | Publication date |
---|---|
DE50013859D1 (en) | 2007-01-25 |
EP1144123B1 (en) | 2006-12-13 |
WO2000066279A8 (en) | 2001-04-05 |
WO2000066279A3 (en) | 2001-08-30 |
EP1144123A2 (en) | 2001-10-17 |
AU4274800A (en) | 2000-11-17 |
ATE347937T1 (en) | 2007-01-15 |
EP1144123A3 (en) | 2001-12-05 |
ATA76299A (en) | 2000-04-15 |
AT407012B (en) | 2000-11-27 |
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