EP0609287A1 - Verfahren zur übertragung von folien auf permanente träger. - Google Patents
Verfahren zur übertragung von folien auf permanente träger.Info
- Publication number
- EP0609287A1 EP0609287A1 EP92921373A EP92921373A EP0609287A1 EP 0609287 A1 EP0609287 A1 EP 0609287A1 EP 92921373 A EP92921373 A EP 92921373A EP 92921373 A EP92921373 A EP 92921373A EP 0609287 A1 EP0609287 A1 EP 0609287A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- film
- pores
- mixtures
- composition
- carrier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
- B41M5/0256—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet the transferable ink pattern being obtained by means of a computer driven printer, e.g. an ink jet or laser printer, or by electrographic means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
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- 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
- B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
- B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
- B44C1/17—Dry transfer
- B44C1/1712—Decalcomanias applied under heat and pressure, e.g. provided with a heat activable adhesive
- B44C1/1716—Decalcomanias provided with a particular decorative layer, e.g. specially adapted to allow the formation of a metallic or dyestuff layer on a substrate unsuitable for direct deposition
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- 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
- B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
- B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
- B44C1/175—Transfer using solvent
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C11/00—Auxiliary processes in photography
- G03C11/12—Stripping or transferring intact photographic layers
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G7/00—Selection of materials for use in image-receiving members, i.e. for reversal by physical contact; Manufacture thereof
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G7/00—Selection of materials for use in image-receiving members, i.e. for reversal by physical contact; Manufacture thereof
- G03G7/006—Substrates for image-receiving members; Image-receiving members comprising only one layer
- G03G7/0073—Organic components thereof
- G03G7/008—Organic components thereof being macromolecular
Definitions
- Another method of image transfer is to combine a coated paper with a self-adhesive film; this film can be peeled off the paper and glued to any object. Peelable, self-adhesive foils are subjected to great stress due to the adhesion of the adhesive to the coated carrier when peeling off, which also requires a corresponding foil thickness. Self-adhesive films are also difficult to position, bubbles and folds can occur, and if the error is corrected, there is a risk of damage to the permanent support. Films that are on a coated carrier together with a water-activated dextrin adhesive can be removed and transferred.
- the typical decal impression is created.
- the usual decal technique creates a very annoying foreign body effect.
- thermo transfer or thermal bonding can take place on heat-sensitive surfaces (wax), no dextrin glue may be used on water-sensitive surfaces (oxidizing metals), no organic solvents on solvent-sensitive surfaces (plastics).
- Another disadvantage of the films coated with an adhesive is that the type of adhesive or the adhesive is already determined during the production of the film / adhesive / carrier composition; an appropriate choice of the type of adhesive is no longer possible later.
- a cryotechnical, not yet published process (Az: P 4118063.1) provides for the object to be glued and the adhesive liquid to be cooled to such an extent that a processing temperature of less than + 10 degrees Celsius is maintained during the duration of the process.
- the advantages of the method result from the cooling of the adhesive substance or the solvents, which are kept in a weakly active state until the work process is essentially completed. Because of the significantly reduced evaporation, problematic solvents can also be used in this process.
- the description of this process includes the production of borderless decals with the help of foils without an adhesive layer.
- application of the method requires the object to be glued to be cooled to less than 10 degrees Celsius. A temperature of minus 20 degrees Celsius is recommended for decals. Due to the required cold, the film cannot be dissolved by weak or water-containing solvents. Working at temperatures of minus 20 degrees is relatively complex. If, for example, a bonnet is glued, it would be necessary to cool the car or to cool the dismantled bonnet. In this respect, the method is only suitable to a limited extent for individual use, in particular for applying foils to larger objects.
- toner transfer processes which are carried out using solvents which are harmful to health and the environment, such as methylene chloride, benzene, etc., or which lead to unpleasant smells, such as dimethyl sulfoxide in higher concentrations.
- the aim of the present invention is films and their transfer to permanent supports with the broadest possible applicability, the film properties can be modified in such a way that different forms of application of colors or toners can be used, durability and optical reproduction are satisfactory, and inexpensive methods the creative generation, such as copying can be applied.
- the object is achieved by means of special porous or detachable foils, preferably combining the properties mentioned; as well as through the use of special material and fabric combinations that enable a durable application to the permanent support without destroying the motif on the film.
- the solvent mainly used in the process is an ethanol / water mixture, and alcoholic beverages corresponding to the food law, such as Asbach or straw rum, can certainly be used.
- Other image transfer methods on the other hand, rely on harmful or odor-intensive solvents such as methylene chloride.
- the solvent mainly used is at the same time permitted as food.
- Low-solvent water-based paints can be used for the film, the top layer, and the coating or protective layer.
- the application of the foils can be carried out in a simple and environmentally friendly manner by laypersons in such a way that the foil is glued to the permanent carrier with the aid of a common drinking alcohol, and if necessary protection and additional gluing can be achieved by spraying with a water-based lacquer.
- On foils made of lacquer base materials or plastic preferably based on alkyd, epoxy, acrylic, styrene, cellulose nitrate, polyester, polyamide, polyurethane; their compounds, mixtures, and their modifications which can be achieved by generally customary substances such as plasticizers, film formers, dyes, pigments, etc. can be spread, poured or sprayed on. Painting, printing, copying, laser printing or a similar process, motifs or colors can be applied.
- the thickness of the film is preferably less than 2.0 mm.
- pores can bond from below, above, or below and above, provided that the pore size is at least so large that it is suitable for the plastic dispersions or lacquers used, preferably on alkyd, epoxy, acrylic, styrene. , Cellulose nitrate, polyester, polyamide, polyurethane base and their compounds and mixtures, hardener solutions, and solvents, preferably alcohols of the aliphatic series up to hexyl alcohol, dimethyl sulfoxide, formic acid, glycol, acetone, water and their mixtures permeable, or these Fabrics dissolve the composition and thereby enlarge existing micropores so that the film becomes permeable to these fabrics.
- the bonding of the composition takes place predominantly or completely through the composition, or for certain applications only partially, but at least to the extent that the proportion of the adhesive bond made possible by the pores in the total adhesive strength is at least 3%.
- the pores should not disturb the visual impression, preferably after transfer to the permanent support, they should be smaller than 2 mm 2 .
- the average pore density before transfer to the permanent support should be at least 1 pore per dm 2 , preferably 4 pores per cm 2 , in particular 40 pores per cm 2 or more.
- the film for example a color film
- the film is transferred, with an average of a 2 mm pore per dm 2 of film. If an approximately 1 m 2 large film is attached with the aid of a water-soluble adhesive, additional bonding is achieved through the pores.
- the pores or adherence points prevent the film from fluttering or being completely detached if the film is damaged or the adhesive dissolves due to weather influences.
- topcoat or protective lacquer When applying a topcoat or protective lacquer, the gluing from above, through the pores, results automatically, so that no additional operation or a special adhesive is necessary for the additional strength of the film.
- Mutual compatibility of film and top coat, as well as its adhesive properties can be determined using simple tests. With pore sizes between 2 mm and 0.01 mm, practically all known films can be glued onto the film in the manner according to the invention by simply spraying an adhesive. With a correspondingly careful dosage when spraying, almost all known lacquers, in particular so-called water-based lacquers, can also be used. According to the invention, gluing from below is also possible.
- the adhesive or lacquer applied to the permanent carrier penetrates into the pores and there are plugs of adhesive which considerably improve the adhesive strength of the film.
- the adhesive or lacquer can also be applied in excess, so that the substance can be pressed through the pores onto the surface of the film and an additional protective or adhesive function is thereby achieved.
- Foil material and lacquer or solvent are combined in such a way that mutual dissolving takes place and the resulting layer has adhesive and / or protective properties.
- the desired extent of mutual resolution is determined using tables that the person skilled in the art uses in daily use. In order to be able to apply a motif to films whose thickness is less than 0.1 mm or which are particularly sensitive by printing or copying, it is necessary to reinforce the film by means of an intermediate carrier.
- an intermediate carrier coated with a release agent preferably with stearates or silicones
- the intermediate carrier usually consists of paper or thin cardboard.
- other materials such as plastics, are also provided for the method according to the invention.
- Intermediate carriers made of plastic enable a better storage life with film thicknesses of less than 0.005 mm and with very sensitive films.
- the foils are also somewhat smoother than with paper intermediate supports.
- an adhesive substance can be located between the porous film and the coated carrier. The substance can be activated thermally, by means of pressure, UV light, solvents and water and can cause sufficient adhesion. Additional bonding is preferably carried out through the pores, as a result of which the adhesive substance between the film and the intermediate carrier, or the adhesive force thereof, can be relatively low.
- a porous film can be used particularly advantageously if there is no adhesive substance between the film and the intermediate carrier.
- the choice of adhesive can therefore only be made during use. Because of the adhesive from above, it is often sufficient to press the film onto the permanent support and then overpaint it.
- the porous film is dissolved or dissolved by lacquer or a solvent and that the resulting substance has adhesive properties.
- the adhesive substance consists of film and solvent.
- the adhesive substance can also form from the permanent carrier.
- Another possibility of fixing the film on the permanent support can be by means of pressure and heat, the film being heated in a known manner to such an extent that it melts slightly and the melted phase causes adhesion.
- Toners which consist of plastic-coated color particles, melt at approx. 140 to 180 degrees; but have the tendency to burst open before the melting point is reached, so that the melting point of the film must be at the lower edge of the toner melting point. Since the melting behavior of color toners differs depending on the color or thickness of the toner layer, the transfer of color copies to foils requires appropriate equipment and experience. However, the reject rate is very high. If, on the other hand, a porous film is used, the required residual glue can be easily applied from above through the film.
- An independent implementation of the aim according to the invention is through the use of a microporous film made of lacquer base materials or plastic, preferably based on alkyd, epoxy, acrylic, styrene, cellulose nitrate, polyester, polyamide, polyurethane; their compounds, mixtures, and the modifications which can be achieved by commonly used substances such as plasticizers, film formers, dyes, pigments etc.
- the film is applied by brushing, pouring, spraying. Painting, printing, copying, laser printing or a similar process, a motif or colors applied and the composition of foil and colors, pigments or toners is transferred to the surface of permanent carriers by gluing.
- the film has a thickness of less than 0.05 mm, preferably less than 0.03 mm and is located on a support coated with release agents, preferably silicones or stearates
- the coated carrier has the task of ensuring sufficient strength of the film during the printing or copying process.
- the composition is connected to the permanent carrier by using solvents, hardener solutions, plastic dispersions or lacquers, preferably alcohols of the aliphatic series to hexyl alcohol, dimethyl sulfoxide, formic acid, glycol, acetone and mixtures thereof, especially ethanol-water Mixtures, from below, above, or below and above is dissolved and the resulting mixture has adhesive properties.
- the thickness of the generally used foils or self-adhesive foils used for printing or copying is approximately 0.1 mm. They are relatively resistant to weak solvents such as alcohol / water mixtures, so that extensive dissolving of the films with weak solvents is not possible. When using stronger solvents, such as acetone, the film dissolves with a simultaneous destruction of the applied motif.
- the films according to the invention preferably have a thickness of 0.03 mm or less and can be dissolved by solvents. With special material combinations and processes, the speed of dissolution of the toners in relation to the film is somewhat slower, which means that it is possible to dissolve, partly even completely, dissolve the film without destroying the motif.
- the color pigments or dry toners are additionally fixed or embedded after application to the film by means of a cover layer.
- weak solvents in particular water-diluted solvents such as ethanol, isopropanol, acetone, formamide, glycol, etc.
- water-diluted solvents such as ethanol, isopropanol, acetone, formamide, glycol, etc.
- the toner / color layer within the loosened film can ideally sink to the permanent carrier without being destroyed.
- the motif is solidified and connected to the permanent support so that commercially available, solvent-based paints can be applied.
- the method can be used without restriction in particular in the case of the dry toners used in copiers and laser printers.
- the film thickness is increased and the composition of the solvent is changed accordingly; the solvent is weakened by dilution.
- a solvent-based lacquer is selected during the subsequent application of a protective lacquer which slightly loosens the film from above and at the edges, a further reduction in the strength of the eol, at least a flattening of the edges, and additional gluing can be achieved.
- Another particularly advantageous embodiment of the invention is the combination of the film properties or the use of thin, soluble and at the same time porous films.
- the film is removed and can be positioned without any problems by covering the area to be glued with the solvent on an object so that the film floats on this solution.
- the solvent is modified by generally known additives such as plasticizers, crosslinking agents or lubricants, even large foils can be positioned exactly on a problematic surface, for example a curved bonnet, with little effort.
- the slight gluing for example with a water / alcohol mixture on the underside of the film, is sufficient for simple applications.
- a tack is achieved with 20 vol.% Ethanol. With 50% ethanol there is a satisfactory bond for demonstration purposes.
- the motif can also be applied in such a way that a light adhesive is added to the solvent or the dissolving and thus also the adhesive of the film is modified by a stronger solvent, preferably ethanol / water with 80% vol. Ethanol. that it is stable under normal use, but can be removed again if necessary, preferably with nitro or universal thinner.
- a stronger solvent preferably ethanol / water with 80% vol. Ethanol. that it is stable under normal use, but can be removed again if necessary, preferably with nitro or universal thinner.
- Permanent, intensive adhesion and protection of the film is achieved by overpainting with one of the customary car paints. Painting with water-based paints and subsequent heating can also be carried out.
- the combination according to the invention of a thin, detachable, porous film with the solvents and lacquers described ensures that the applied film is bonded very intensively (diffusion bonding) and is not recognizable or can only be seen on closer inspection. Ideally, the film "sinks" into the surface of the object in question.
- a cover layer is applied using a suitable material after the printing or copying process, but before the composition is applied to the permanent support.
- the cover layer can consist entirely or partially of the same materials or of materials with similar or compatible properties as the film.
- the film can be produced on a nitrocellulose basis and the cover layer can be produced by spraying on an acrylic lacquer.
- Porous foils or porous lacquer layers are generally not desirable; Basic and auxiliary materials, production and processing are therefore coordinated in such a way that foils are predominantly non-porous and therefore impermeable to liquids.
- the film used has pores, preferably in a size which is hardly or no longer perceived by the eye; thus in the range of 0.02 mm.
- the pores must be permeable to paints, solvents or adhesives.
- the width of the pores when transferring photocopies can be relatively large, that is to say approximately 0.1 mm, without the motif being appreciably impaired, since the pores constrict during the copying process. An additional narrowing can take place when the cover layer is applied or when it is transferred to the permanent support.
- porous films which can be used according to the invention can be produced by blow molding, casting, extruding or calendering, and also by casting a foamed lacquer or plastic solution, or by spraying.
- a porous film with a thickness of less than 0.002 mm can be produced.
- Such thin films can be subjected to a printing or copying process, but are difficult to remove.
- these particularly thin and sensitive foils, after the application of paints or toners, are reinforced by spraying on lacquer to such an extent that they can be removed from the coated carrier.
- the film thickness is preferably approximately 0.01 mm before the copying or printing process and is then reinforced by a cover layer of approximately 0.01 mm, so that the thickness of the overall film is approximately 0.02 mm.
- the film thickness is always stated without colors or toners, because in particular the thickness of the applied toners, depending on the color, can exceed that of the film.
- the film and cover layer preferably consist of compatible or homogeneous materials and combine to form a film.
- This special production method has the advantage that colors or toners are located between two layers of film and are thereby additionally protected against the effects of solvents, lacquers, adhesives etc. during application to the permanent carrier.
- a particularly absorbent, easily printable or copyable plastic or lacquer for example based on cellulose nitrate, can be used for the base layer of the film, while the top layer consists of a harder lacquer, eg based on acrylic.
- the film can have a thickness of approximately 0.02 mm, so that it can be removed directly after the copying process without applying a cover layer. Furthermore, it is planned to reinforce the porous film to about 0.09 mm; it can therefore be subjected to a printing / copying process even without a carrier.
- any sufficiently thinnable and sprayable lacquer or film base material can be used as the base material for the film; lacquers based on alkyd, acrylic or cellulose nitrate are preferably used. Films for image transfers are preferably transparent, but can also contain dyes. With most copiers, the color white is not produced, so that it may be necessary to color the film accordingly when transferring to dark objects.
- the spray substance can be modified in a known manner by known auxiliaries such as plasticizers, fillers, paints, etc.
- a layer of 0.002 mm is applied to a carrier coated with a release agent per spraying process and the process is repeated after the complete drying until the desired layer thickness has formed.
- the pores can be seen with a microscope, magnification 40 x 80; preferably the pore size is between 0.2 mm and 0.02 mm; the pore density is 50 to 200 pores per cm 2 .
- the printing or copying process usually results in a narrowing or a reduction in the number of pores.
- the size and number of pores should be matched to this.
- the pores can also be created or enlarged after the printing or copying process or after the covering layer has been applied. A combination of porous film and additional subsequent creation or expansion of pores is easier to carry out and useful in many applications.
- the pores of the film are also produced or expanded in an additional operation that takes place after the normal manufacturing process.
- the pores can also be created or expanded after the application of the paints, toners or pigments, a further application providing for the selective creation or enlargement of the pores at the locations coated by paints, toners or pigments.
- the pores can be created or expanded after the top layer has been applied.
- the pores can be created or expanded mechanically, thermally or by loosening.
- the simplest possibility is to create pores, cracks, holes or other openings by means of injection or push-in needles.
- the needles can also be arranged in a comb so that the manual pore pricking can be carried out somewhat more quickly.
- pores can be created in a simple manner.
- films which are already porous only certain areas can thereby be selectively provided with pores.
- the toner strength is relatively high, so that subsequent, selective generation of pores is recommended in order to achieve particularly intensive and uniform adhesion.
- a spiked roller is used for larger films.
- the spiked roller can be easily produced by inserting needles into a rubber roller.
- the dimension of the roller can be adapted to the respective film width, so that spiked rollers can also be used in the industrial production of porous films.
- Another form of pore creation is the use of a laser.
- the film areas (pores) are evaporated to the desired extent by a correspondingly powerful laser.
- the existing pores can be melted by printing or copying processes or blocked by colors or toners, this can be avoided in addition to the described possibilities for creating or expanding the pores by printing or Copying a pore grid, especially in color-intensive areas, is generated so that color-free areas (pores) are preserved.
- the desired purpose can be achieved by using a transparent film with white dots, which is placed over or under the motif when copying.
- the cutouts can be taken into account when the template (sieves, clichés, raster photos, etc.) is created.
- any motif or representation preferably by a color copier, can be applied to the porous and / or soluble film described and then transferred to almost any solid surface, preferably to metals, metal oxides, wood, wood materials, paper, Cardboard, cardboard, ceramics, plastics, leather, synthetic leather, cork, wax, glass, synthetic glass, hard foam, porcelain, clay, ceramics, stone, food, textiles, rubber, rubber, canvas and painted surfaces. Because of the wide range of applications of the method and of the foils, modifications are necessary for the respective area of application, which can be determined on the basis of simple experiments, which the person skilled in the art can easily carry out.
- the method also provides for the surface of the permanent support to be processed in a suitable manner.
- the film properties with regard to the dissolution behavior in particular by the choice of easily soluble and porous materials, can also be used advantageously for the surface of the permanent support.
- a suitable surface treatment consists of spraying on a thin layer of acrylic or nitro lacquer and applying the film before it is completely hardened. If the surface of the permanent carrier is slightly roughened, the thin film which has been loosened during the application fills in the resulting depressions. As a result, when the film dries / sticks on, the motif is additionally solidified, since the toner sinks partly or completely through to the roughened surface.
- a motif color copy
- the adhesive intensity can be transferred to a roughened copper plate without the edge of the film being recognizable; the impression is given that the motif was printed or copied directly onto the copper plate.
- the pores have the advantage of an additional adhesive, the intensity of which can be determined by the size and number of pores.
- the strength resulting from pore bonding can be checked with a simple procedure. A piece of film of approximately 100 cm 2 glued onto a permanent support, for example a metal plate, is cut into a cross shape. Then point a jet of water at the intersection of the two cuts. In the case of water-sensitive adhesives, the method can also be carried out with compressed air.
- the thickness of the film is 0.09 mm, the pore size 0.1 mm
- Density approx. 20 pores per cm 2 .
- the film is glued to a metal plate (4) with the aid of a self-adhesive substance (3) and coated with a lacquer (5) based on alkyd, acrylic or epoxy.
- a lacquer (5) based on alkyd, acrylic or epoxy.
- the film base material can be modified in a known manner so that the film does not pose any particular fire risk.
- Example III Thermal fixation of a porous film on a copper plate
- the film with the motif applied is thermally fixed in a known manner at temperatures which correspond approximately to the melting point of the film and then overpainted.
- the film preferably consists of a relatively low-melting material which can still be copied, for example based on cellulose nitrate, so that the film begins to melt in front of the applied toners, so the melting point of the film is approximately 140-160 degrees.
- a particularly sensitive motif is only tacked at a temperature of approximately 140 degrees. The main gluing is done by spraying on an acrylic varnish, which causes the film to stick through the pores.
- Example IV Transfer a photocopied motif onto a canvas using a thin, soluble film
- Cellulose nitrate varnish on siliconized paper is provided with an individual, colored motif using a photocopier.
- the composition is then strengthened by further spraying with a water-based paint to such an extent that the eolie can be removed from the coated support; the total thickness of the film, toner and cover layer is approximately 0.035 mm.
- the film has micropores, which improves the solubility of the film.
- a mixture of ethanol and water with 30% by volume of ethanol is applied to a commercially available primed canvas, such as is used for corn purposes. The film is placed on the canvas, the film floating on the solvent.
- the film is positioned and then the excess
- Example V transferring a photocopied motif to a hood using a thin, soluble and porous film
- a color copy (8) is applied to a porous film (7) made of cellulose nitrate varnish with a thickness of 0.007 mm ( Figure 2).
- the film is then reinforced with acrylic paint (9) to 0.04 mm.
- the pore density and number of pores can be checked under a microscope (40 ⁇ 80). If necessary, the number of pores (10), in particular in the areas with a thicker toner layer (11), is reworked manually with the aid of a spiked roller, so that an average of approximately 30 pores per cm 2 of film are present.
- the pore size can be up to 0.1 mm, but preference is given to pores which are not or barely visible, i.e. about 0.02 mm in size.
- the painted bonnet (12) of a motor vehicle is cleaned and covered with a mixture of water and alcohol (70 vol.% Ethanol) so that the film floats on it.
- the film is positioned and the excess solvent is pressed out and collected.
- An adhesive substance (13) is formed from the alcohol solution and the film, which leads to weak adhesion of the film.
- a porous film (16) with a thickness of approximately 0.002 mm is produced by spraying a commercially available mixture of lacquer and thinner with the aid of compressed air on a siliconized carrier made of paper (15).
- Such thin films can already be subjected to a printing or copying process, but are difficult to remove. According to the invention, the spraying process is therefore repeated until the desired film thickness (17) is reached.
- the paint mixture can be changed after each spraying process. Good copying properties result from pure cellulose nitrate films, greater strength is achieved by adding acrylic lacquer.
- the film is preferably first produced from cellulose nitrate by 4 to 5 spraying operations in a thickness of 0.01 mm. After the copying or printing process, a top layer (18) of approximately 0.005 mm is applied by spraying 2 to 3 times with cellulose nitrate varnish and embedding the toner (19). The cover layer is then reinforced by spraying once with acrylic lacquer (20), so that the thickness of the overall film is approximately 0.02 to 0.03 mm.
- the resulting pores can be open (21), semi-open (22) or closed (23).
- the pore size is approximately 0.02 mm; the pore density up to 150 pores per cm 2 .
- the film is removed and processed in a known manner.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Decoration By Transfer Pictures (AREA)
- Printing Methods (AREA)
- Color Printing (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4134704A DE4134704A1 (de) | 1991-10-21 | 1991-10-21 | Verfahren zur uebertragung von folien, auf denen sich farben, pigmente oder toner befinden, auf permanente traeger, poroese oder anloesbare folien zur durchfuehrung des verfahrens, und herstellung poroeser folien |
DE4134704 | 1991-10-21 | ||
PCT/DE1992/000875 WO1993008034A1 (de) | 1991-10-21 | 1992-10-19 | Verfahren zur übertragung von folien auf permanente träger |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0609287A1 true EP0609287A1 (de) | 1994-08-10 |
EP0609287B1 EP0609287B1 (de) | 1997-04-23 |
Family
ID=6443086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92921373A Expired - Lifetime EP0609287B1 (de) | 1991-10-21 | 1992-10-19 | Verfahren zur übertragung von folien auf permanente träger |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0609287B1 (de) |
JP (1) | JPH07503416A (de) |
AT (1) | ATE152051T1 (de) |
CA (1) | CA2120496A1 (de) |
DE (3) | DE4134704A1 (de) |
WO (1) | WO1993008034A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4313046A1 (de) * | 1991-10-21 | 1994-10-27 | Manfred Keppeler | Poröse Folien zur Bildübertragung |
DE4313038A1 (de) * | 1991-10-21 | 1994-10-27 | Manfred Keppeler | Folie zur Bildübertragung, hergestellt durch Sprühen |
DE4313055A1 (de) * | 1991-10-21 | 1994-10-27 | Manfred Keppeler | Poröse Folie für verschiedene Anwendungen, hergestellt durch Sprühen |
DE4305221C2 (de) * | 1993-02-19 | 1995-03-30 | Friedrich Dr Senser | Verfahren zur Herstellung von Reproduktionen von Druckformen sowie die nach diesem Verfahren erhaltenen Reproduktionen und deren Verwendung |
FR2711332A1 (fr) * | 1993-10-19 | 1995-04-28 | Toussaint Thierry | Procédé et presse pour le transfert d'une reproduction sur un support et support décoré obtenu par le procédé. |
ES2107973B1 (es) * | 1996-05-17 | 1998-07-01 | Salvador Rafael Aguilar | Procedimiento para la decoracion de productos alimenticios. |
EP1080880A1 (de) * | 1999-08-20 | 2001-03-07 | Alusuisse Technology & Management AG | Verpackungsmaterialien mit teilflächig angeordnetem Materialauftrag |
US8652742B2 (en) * | 2010-12-16 | 2014-02-18 | Konica Minolta Business Technologies, Inc. | Method for producing print having foil image and toner image |
DE102013108381A1 (de) | 2013-08-05 | 2015-02-05 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Kompressorsystem |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE561294C (de) * | 1928-08-30 | 1932-10-12 | I G Farbenindustrie Akt Ges | Abziehbild mit Cellulosederivatschichten |
CH187438A (de) * | 1936-01-29 | 1936-11-15 | Hydrologie Ag F | Wasserreinigungsverfahren. |
US3647503A (en) * | 1968-11-18 | 1972-03-07 | Toppan Printing Co Ltd | Multicolored heat-transfer sheet and processes for heat transfer of multicolored ink impressions |
DE2121083A1 (de) * | 1971-04-29 | 1972-11-09 | Ploss, Uto, 8672 Selb | Abziehbild für Kunststoffwaren |
JPS55107493A (en) * | 1979-02-13 | 1980-08-18 | Nissha Printing Co Ltd | Dyeing method of multicoloured patern on heat resisting base material |
DE3209075C1 (de) * | 1982-03-12 | 1983-09-29 | Franz 6920 Sinsheim Dittrich | Verfahren zum dauerhaften Beschriften von Kunststoff-Folien und -Planen |
GB2117320B (en) * | 1982-03-27 | 1985-09-18 | Terance Kliszcz | Transfer printing on articles having flat curved or irregularly-shaped surfaces |
JPS63224991A (ja) * | 1987-03-13 | 1988-09-20 | Toppan Printing Co Ltd | 感熱転写インキシ−ト |
JPH03277588A (ja) * | 1990-03-28 | 1991-12-09 | Ricoh Co Ltd | 熱転写記録媒体 |
-
1991
- 1991-10-21 DE DE4134704A patent/DE4134704A1/de not_active Ceased
- 1991-10-21 DE DE4143430A patent/DE4143430C2/de not_active Expired - Fee Related
-
1992
- 1992-10-19 JP JP5507347A patent/JPH07503416A/ja active Pending
- 1992-10-19 AT AT92921373T patent/ATE152051T1/de not_active IP Right Cessation
- 1992-10-19 EP EP92921373A patent/EP0609287B1/de not_active Expired - Lifetime
- 1992-10-19 WO PCT/DE1992/000875 patent/WO1993008034A1/de active IP Right Grant
- 1992-10-19 DE DE59208412T patent/DE59208412D1/de not_active Expired - Fee Related
- 1992-10-19 CA CA002120496A patent/CA2120496A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO9308034A1 * |
Also Published As
Publication number | Publication date |
---|---|
JPH07503416A (ja) | 1995-04-13 |
WO1993008034A1 (de) | 1993-04-29 |
ATE152051T1 (de) | 1997-05-15 |
DE4134704A1 (de) | 1993-05-19 |
DE4143430A1 (de) | 1993-11-11 |
DE59208412D1 (de) | 1997-05-28 |
EP0609287B1 (de) | 1997-04-23 |
DE4143430C2 (de) | 1996-08-29 |
CA2120496A1 (en) | 1993-04-29 |
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