MXPA05002046A - Transfer method for surface decoration - Google Patents

Transfer method for surface decoration

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Publication number
MXPA05002046A
MXPA05002046A MXPA/A/2005/002046A MXPA05002046A MXPA05002046A MX PA05002046 A MXPA05002046 A MX PA05002046A MX PA05002046 A MXPA05002046 A MX PA05002046A MX PA05002046 A MXPA05002046 A MX PA05002046A
Authority
MX
Mexico
Prior art keywords
layer
image
paper
adhesive
transferring
Prior art date
Application number
MXPA/A/2005/002046A
Other languages
Spanish (es)
Inventor
Rf Af Strom Lech Oscar
Original Assignee
Rf Af Strom Lech Oscar
Filing date
Publication date
Application filed by Rf Af Strom Lech Oscar filed Critical Rf Af Strom Lech Oscar
Publication of MXPA05002046A publication Critical patent/MXPA05002046A/en

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Abstract

A composite image transfer sheet is prepared by combining a layer of rubber based hot melt adhesive with a plastic film which, if thin, is attached to a releasable support sheet. The composite sheet thus derived is positioned with its adhesive surface in contact with the image to be transferred, said image having been obtained by printing, copying or painting by hand on a paper. The laminate is submerged in water and the image paper base washed away. The decal thus obtained is positioned on the desired substrate .and heat pressed with Utile pressure. This causes the adhesive to migrate through the image forming layer into the substrate, thereby providing images transferred to fabric with the texture of the same, as well as a firm and machine washable anchorage. Decals obtained by this process may also be applied with 0 adhesive, paint or varnish. The bond thus obtained may be reinforced through heat pressing, in which case the migrating adhesive will also penetrate the layer of adhes ive or paint.

Description

TRANSFER METHOD FOR SURFACE DECORATION CROSS-REFERENCE APPLICATIONS This application is a non-provisional application that claims the benefits of the United States of America's non-provisional application No. 10 / 783,971, filed on February 20, 2004. FIELD OF THE INVENTION The present invention relates to transferring an image from paper, such as a print or photocopies, to a material such as a jacket, by means of a composite sheet laminate comprising a plastic film and a hot melt adhesive layer. based on rubber adjacent to the plastic film. OBJECT OF THE INVENTION Provide handicraft producers and model builders with a simple and economical method to decorate surfaces of their respective products. BACKGROUND Surface decoration by means of image transfer is an ancient trade, for which patents were issued as early as the 19th century. Transfers during that era were mainly for direct transfer types. For example, an image printed or painted on a sheet of paper was coated with a suitable emulsion. The coated paper was then placed with the emulsion in contact with a substrate. When the emulsion was dried, the paper backing of the image was washed off, leaving the image adhered to the substrate. In this way very beautiful decorations were prepared. It should be noted that the transferred image produced by those old media appeared as a mirror image of the original. For this purpose, it was necessary to print the images to be transferred in reverse. One development of this method was to print the image on paper coated with a layer of a water-soluble adhesive, which made paper faster and easier to remove. Later, instead of being printed on a water-soluble adhesive, the image was printed on a paper coated with a layer that could be peeled dry of a layer of printing inks, such as silicone. In addition, instead of using a wet adhesive to glue the print onto the substrate, dry, heat-sensitive coatings were applied to the image, which had been printed on the dry release layer. The printed paper was then placed and coated with the heat-sensitive coating in contact with the substrate. Heat and pressure were applied to the paper, and the image and coating merged with the substrate. Upon cooling, the release coated paper was removed and the transfer was complete. A further improvement came when papers coated with a release layer and a heat sensitive coating were developed covering the release layer. The image was printed on the heat-sensitive layer of such papers. These transfer papers work, more or less, like those described above. The disadvantages of the prior art are mainly the following. Printing should be done on expensive paper, which does not lend itself to high-speed printing; the image must be printed in reverse; and the heat-sensitive coating, on which the image will be printed, does not lend itself to printing high-definition images on high-speed presses. For this reason, images are mainly obtained by color laser copying or inkjet printing. Finally, the application of the image by fusion requires a relatively high pressure and high temperature. It is merely a method for causing the surface of the image to adhere to the surface of the substrate, without any anchoring within the cross section of the latter. In parallel to the development of direct transfers, a method for indirect transfers was also developed, via so-called decals or decals, using the aforementioned systems of dry peeling and heat-sensitive layers. These stickers had basically the same deficiencies as those indicated above in relation to direct transfers. further, the manufacture of decals is relatively expensive. Because of this, attempts were again made to transfer prints from ordinary printing paper, such as images in magazines, newspapers and postcards. Among the first inventions in this field was U.S. Pat. No. 3,344,012, with the title of INTERMEDIATE CARRIER FOR TRANSFER OF PRINTED IMAGES and issued in September 1967; (hereinafter, Patent 012). According to this invention, a composite sheet, consisting of a backing sheet, a release layer and a pressure sensitive adhesive, covered by a coating, was used for the purpose of transferring an image, firstly to a decal and from this to the substrate. Patent 012 only mentions a wet release layer. However, one development, sold under the trademark Lift-a-Picture ™ also used a dry release layer. A transfer with such a composite sheet, better known as a transfer sheet, is done as follows: 1. Remove the adhesive coating and position the sheet with the adhesive in contact with the image. 2. Immerse the laminate. When the paper backing of the image has become saturated, wash it to remove it. The decal is finished. The application of the decal thus obtained was made in the following way: 1. Apply a layer of adhesive on the image on the decal. 2. Position the image in contact with the substrate. 3. Remove the removable support paper. The transfer is finished. To make a transfer to machine washable fabric, the decal had to be pressed at "wool" temperature before removing the peel-off backing paper. This fused the image to the substrate. Towards the same period, another invention was made in this field, which received U.S. Pat. No. 3,607,525, with the title METHOD FOR TRANSFER OF AN IMAGE FROM AN INITIAL SUPPORT TO A NEW SUPPORT, and issued in September 1971 (hereinafter, the Patent 525). Patent 525 describes the use of a transfer adhesive, a pressure sensitive adhesive located between two coatings, for the purpose of image transfer. It works in the following way: 1. The primary coating of transfer adhesive is removed and the sheet is applied with the exposed adhesive in contact with the image. 2. The secondary coating of transfer adhesive is removed, exposing the coated image with adhesive. 3. A release sheet covered with silicone, which has a layer of plastic coated on the silicone layer, is then positioned on the adhesive image. The resulting laminate is identical to the laminate obtained with the transfer sheet described above. The continuation of the transfer process is done in the same way described above.
The next development was to remove the adhesive used to apply the decal on the substrate. For this purpose, a composite transfer sheet of the type described above was being employed, but having two layers of plastic film instead of one, as described in US Pat. No. 3,985,602 with the title TRANSFER PROCESS AND COMPOSITE LEAF FOR THE SAME, and issued in October 1976. The decal was obtained in exactly the same manner described above; however, the application was different. One of the two plastic films covered and protected the transferred image, while the second plastic film, having a different melting temperature, would fuse the image to the substrate by pressing the sticker with heat. An additional development of a fusion decal is described in U.S. Pat. Do not. 4,685,984, with the title of IMAGE TRANSFER METHOD, and issued in August 1987. The decal is obtained in the same way as that described above, and the application is made by fusion. However, instead of two plastic particles, this invention uses only one, which protects the transferred image and also fuses it to the substrate. While the image to be transferred according to any of these patents can appear on virtually any type of paper, the prints or copies on coated papers are the easiest to transfer, since the image is detached from the paper base simultaneously with the covering. This method has been the subject of at least one US Pat. THE INVENTION As indicated above, the heat applied decals were fused to the surface of the substrate. This means that the heat sensitive layer of the decal would melt, and the melted layer adheres to the surface of the substrate, without necessarily penetrating the substrate. For this reason, the methods of the prior art do not always provide good wash qualities of the transferred image. In addition, the plastic film or films impart undesirable thickness and stiffness to the transfer decal. The present invention has been developed with a view to providing flexible and elastic transfers with superior adhesion to substrates. For this purpose, composite sheets have been developed with the same number of layers as that of the first patent described above, although with the following differences. (i) In addition to the support sheets with silicone release layer or water soluble layer, which are still useful for transferring images located on coated papers, support sheets have been introduced consisting of papers coated on one side for image transfer located on "difficult" paper. Such sheets can be submerged for long periods, even during the whole night, which is a requirement for the transfer of images located on certain qualities of recycled paper. The release of the backing paper is based on U.S. Pat. No. 5,032,449, and is activated by the use of steam, which is new. (ii) The adhesive consists of a rubber-based hot melt adhesive, combined with the plastic sheet of the composite sheet and transferred to the composite sheet from a rubber-based rubber-based melt transfer adhesive. In this configuration, the adhesive will migrate when heat is applied on the composite sheet. As a result, the transferred images will adhere to the substrate and actually penetrate it to create a much more robust transfer than that available by fusion alone. While most of the transfers obtained by the prior art fusion methods require temperatures for "cotton" or even linen, about 190 ° C to 200 ° C, and a heat transfer machine, the decals made in accordance with the present invention they can be applied at lower temperatures, and by using a manual iron with modest pressure. However, the temperature for "wool" or slightly higher is recommended in order to achieve maximum migration. The result is a transfer that adapts to the texture of the substrate, is flexible and elastic, and has excellent machine washing qualities, superior to the transfers applied by fusion. This is due to the fact that the migrant adhesive enters the cross section of the substrate, thus giving the transferred image a better anchoring than a melt-applied image, which is simply a surface for surface adhesion of the image to the substrate. In order to migrate, the adhesive layer of the composite sheet should consist of a rubber-based adhesive melt adhesive. Acrylic-based adhesive will not migrate. In addition, migration will not take place without a plastic particle included in the composite sheet. The adhesive will not migrate on its own. The migration is, most likely, caused by the plastic particle that serves as an impenetrable wall with respect to the rubber molecules. When heated sufficiently, they bounce off the plastic wall with sufficient force to penetrate the image layer and the surface of the substrate. In connection with this, it can be mentioned that the S-246 Contact Adhesive Product Sheet, manufactured by Fasson Roll, PainesviHe, Ohio, specifies a range of service temperature from -0 ° F to + 160 ° F (-40 ° C to + 71 ° C). However, the press temperature under heat at which the migration occurs is much higher than the specified maximum temperature, approximately twice as high, ie 320 ° F (160 ° C). To demonstrate that migration only happens when the adhesive is combined with a plastic particle, I attached two pieces of fabric with the adhesive S-246. I also joined the same fabric with a 2 mil piece of polymethylene, using the S-246 adhesive. I pressed the two laminates for 25 seconds with a plate at a "cotton" temperature. After a cooling period, the fabric laminate could be easily separated, leaving a light layer of adhesive on both pieces. However, the piece of polyethylene was very well stuck to the fabric. Then I repeated the pressure. This time the fabric laminate was completely separated, the adhesive layers being completely dry. The second pressing of the polymethylene particle, on the contrary, resulted in a piece of transferred plastic that was completely integrated with the fabric. In addition, its surface completely took on the texture of the fabric. This experiment demonstrated the reason for the good wash qualities of the transfers according to the present invention. Not only does a transfer adhere very well from the same principle, but the link will increase its strength with additional pressings, until the transfer is completely integrated with the substrate. In order to verify the previous theory and if the migration takes place with other brands of hot melt transfer adhesives based on rubber, I chose a Mexican hot melt transfer adhesive based on rubber, manufactured by the Mexican company ESAMEX. I was told that this brand of adhesive does not lend itself to warming; however, by including it in a composite sheet according to the present invention, the migration took place in exactly the same way as with the adhesive S-246. Thus, my conclusion is that the composite sheets according to the present invention can be derived from any one of existing rubber based melt adhesive adhesives. Due to the fact that both the S-246 and the fusion transfer adhesives in ESAMEX rubber base rate that I have used for my experiments, have a second coating that requires considerable force to detach it, the use of a silicone coated release sheet with higher release force than the second coating. For transfers of images printed or copied on coated papers, which do not need to be submerged for more than a few minutes, a support paper coated with silicone is recommended. For an image printed on difficult paper, such as a recycled paper, the lanyard should be immersed for many hours and considerable force will be required to remove the paper backing from the image. This force can have the undesirable effect of premature detachment of a support paper coated with SiMcona, which will destroy the transfer process. For this reason, I have used the invention described in my US Pat. No. 5,032,449, with the title of DECALS AND PROCESSES FOR TRANSFER OF IMAGES TO SUBSTRATE, issued in July 1991 (hereinafter in the present Patent 449). Employing coated paper on one side, according to Patent 449, provides an easy method for obtaining the desired release properties between the backing paper and the plastic particle. It is worth mentioning that adequate release properties have been achieved for various types of transfer by varying the thickness of the paper, as well as the temperature and time for the lamination of the paper to the plastic particle. For sheets to be used for transferring images on difficult paper, a heavier support paper should be used. The resulting bond can withstand hours of submersion, even through the night, and still maintain its integrity even if subjected to rough attempts to remove the paper. An image of a single-sided coated paper can be peeled after a few minutes of submersion, according to Patent 449. However, for the release of a coated paper on only one face of the plastic particle, some additional strength. This is due to the fact that the sheet has been provided with a strong lamination bond in order to withstand prolonged submersion. For this reason, removing such a support paper is done with steam during the first phase of applying the decal. The combined force of wetting and lifting of the steam will separate the sheet sufficiently to be detached. Therefore, a wet cloth is placed over the decal during the first phase of the heat application, usually for about 20 seconds. In order to cause a slight migration of the adhesive, enough to give a slight retention to the image, and a Mgedarily higher temperature of between "wool" and "cotton" is required in a manual iron, due to the wet cloth. The pressing creates steam, which saturates and lifts the release paper, which can easily be peeled off after 20 seconds of initial pressing. To complete the application and achieve complete migration, the transferred image is then covered with a release paper coated with Sihcona and ironed for a further 20 to 30 seconds. Upon cooling, the release paper is removed, exposing the transferred image. Covering the transferred image with a wet cloth and pressing for 10 to 15 seconds at the "wool" temperature, the transferred image will be fully incorporated with the texture of the substrate. Instead of pressing with heat, you can stick the decal to a substrate, using an adhesive. However, since this is a method that was fully described in Patent 012, it is not covered here. However, the novelty of using steam is recommended in order to remove the support paper. For fast transfers, it is necessary to use a paper for printing or copying that can be detached by washing it quickly. The use of coated papers is known in the art. I have found that a paper with triple coating, such as the Super Polart, triple coating, sold in Mexico by Papel, S.A., and manufactured by the Belgian company Burgo Ardennes, works very well. This is a paper for high-quality printing on which you can print images of the highest quality. For this reason, this role lends itself to high-quality professional transfers. However, most papers similarly coated, as well as electrostatic copying papers coated with zinc oxide should also be suitable. The Super Polart paper can come off after about 5 minutes, and will separate from the laminate after about 15 minutes of submersion, sometimes before. However, if it is peeled off, or submerged until it separates, the exposed image may have small spots. For this reason, it is recommended to iron the laminate on a wet cloth, before releasing the paper, in which case the laminate will not need more than about 2 minutes of submersion.
Such a transfer is best done with a support paper coated with Sihcona. However, a thin support paper coated on one side, laminated with minimal force, also works well, with minimal force. I mean that the support sheet should be laminated just enough to allow the release of the adhesive coating without affecting the bond between it and the plastic particle. An image, printed or copied on Super Polart paper, or the like (for example a paper for electrostatic copying), can be transferred in the following manner. A. Composite sheet with a coated paper on one side as a support sheet: 1. Apply the transfer sheet on the image and submerge the laminate. This can be done automatically, if you are using paper rovings and the compound sheet. 2. After about 2 minutes of soaking, take the laminate and peel off the plastic foil. Next, place the laminate with the backing of the image paper in contact with a wet press cloth. Cover with a paper coated with SiMcona and press for 20 seconds with the iron at a temperature between "wool" and "cotton". 3. Remove the laminate from the wet cloth. Sihco coated paper now adheres to the surface of the plastic film, while the backing of image paper can be peeled off. As a result, you get an easy-to-apply decal with iron that can also be applied with adhesive. 4. Apply the decal positioning it with the image in contact with the substrate. Press for 20 to 30 seconds with the iron at "wool" temperature. Allow to cool, and then release the coated paper with SiMcona. The transfer is finished. With a support sheet coated with SiMcona, Step 2 will be simplified, since there is no need to remove the backing paper and cover the laminate with SiMcona coated paper. As described above, a special release paper coated with SiMcona with higher release strength than the second adhesive coating will be required. In view of the ease of making transfers of prints and copies, as well as paints made with markers, the work and additional expense of using the special release paper with siMcona is fully justified. B. Composite sheet with a release paper coated with SiMcona adhered to the plastic film. 1. Same as step 1 in A, airiba. 2. After about 2 minutes of soaking, take the laminate and place it with the image paper backing in contact with a wet press cloth and press for 20 seconds with the iron at a temperature between "wool" and "cotton". Then detach the image paper backing. As a result, a decal for pressing is obtained which can also be applied with adhesive. 3. Same as step 4 in A, above. During my experiments, I used the following plastic films: a) an acrylic resin derived from a 46% acrylic emulsion, b) a polymethylene polymer, and c) a polyurethane polymer. Due to the flexibility and elasticity of the transfers derived from the latter, the vast majority of my experiments have been carried out with the polyurethane plastic mass. By giving the transfers an acrylic emulsion layer, their UV resistance levels improve greatly. For transfers that do not need to be stretched, I have found that the polymethylene scale works very well, and can be obtained as a laminate of a paper coated on one side with the paper extracted on the paper. The present invention is based on the discovery of the ability of the rubber-based fusion adhesives to migrate, when combined with a plastic particle. In the examples provided, the adhesive has been combined with the plastic particle in a composite sheet, intended to be used for the purpose of surface decoration. Nevertheless, this discovery could have several more applications, in which a bond between materials, obtained with a rubber-based fusion adhesive, can be reinforced by applying heat, causing the adhesive to migrate to the cross sections of the fibers. respective materials. BRIEF DESCRIPTION OF THE FIGURES Fig. 1 shows the cross section of a sheet of transfer adhesive. Fig. 2 shows the cross section of a sheet of paper with an image on its surface. Fig. 3 shows the cross section of a plastic particle supported by a sheet of paper coated on one side.
Fig. 4 shows the cross section of a plastic particle supported by a SiMcona coated sheet. Fig. 5 shows the cross section of a composite sheet of the preferred version, the plastic strip of Fig. 3 supported by a paper coated on one side having been applied on the adhesive of Fig. 1. Fig. 6 shows the cross section of the laminate of the composite sheet of Fig. 5, positioned with its adhesive layer in contact with the image of Fig. 2. Fig. 7 shows the cross section of the laminate of Fig. 6, having been removed completely the backing of the image paper and finished the decal. Fig. 8 shows the cross section of Fig. 7 being applied on a substrate. Fig. 9 shows the cross-section of the first heat-transfer stage of the decal of Fig. 8, removing the backing sheet from the decal. Fig. 10 shows the cross section of the removal of the release paper coated with Sihcona from the decal of Fig. 9, when the image transfer is scheduled. Fig. 11 shows the cross section of the decal of Fig. 7 with a layer of transfer adhesive placed on the (reverse) image of the decal. Fig. 12 shows the cross section of the decal of Fig. 11 applied to a substrate. DETAILED DESCRIPTION OF THE INVENTION The drawings are cross sections of successive phases of the transfer processes, which show the details of the elements being processed. The dimensions are not to scale, and the thickness of the cross sections is greatly exaggerated. The adhesive of all the adhesive layers shown in the figures is a rubber-based melt transfer adhesive, which is referred to as an adhesive only. Fig. 1 shows the cross section of a transfer adhesive according to the invention. The adhesive (1) is placed between the coating (2) with the syhcona layer (3a) and the coating (4) with the SiMcona layer (3b). The force required to detach the liner 2 is less than that required to detach the liner 4.
Fig. 2 shows the cross section of an image (5) located on the surface of a paper (6). The image can be derived from any known method of printing, copying or coloring, using inks, toners or half-dyes waterproof. If the image is placed on a common paper for printing or copying, the inks, toners and measured water-soluble dyes will not be transferred. Thus, prints made on an ink jet printer will not be transferred. This is useful for artists and amateur painters who use patterns and numbers as an aid to their work. When the painting is ready to be transferred, only the patterns drawn by the artist will be transferred and all the patterns printed by inkjet will disappear in the process. Fig. 3 shows the cross section of a plastic case (8) supported by paper coated on one face (7), which has been laminated on the particle with its uncoated face in contact therewith. The sample (8) can also be coated, or extracted on said uncoated face. Good results have been obtained by roller application of a 46% acrylic emulsion manufactured by Rohm & Haas as Emulsion B60A. Successful tests have been made with extracted polyethylene peel on coated paper on one side of 75 g. For the transfer of images located on coated papers, which require little time of submersion, the preferred laminates have been obtained with either a support paper coated with SiMcona, or a support paper coated on one side of 75 g. Since the latter is easier to obtain, most of the experiments have been done with such a role (that is, Lustro-Mto ™ una cara, manufactured by Kimberly Clark de México), laminated to various polyurethane films produced by Deerfiel Urethane, Inc. These two laminates, that is, with either a support paper coated with SiMcona, or with the paper coated on one side of 75 g, laminated to a polyurethane film, they are the preferred versions for transferring images located on coated papers. However, the support paper is only required for composite sheets with a thin plastic film. The heavier plastic particles do not require a support sheet. On the other hand, for the transfer of images placed on difficult papers, such as recycled papers, a paper coated on one side with a water resistant coating is required. One such paper is produced in Colombia and traded in Mexico under the Propalcot trademark. However, with a slightly higher temperature and a longer pressure time, the 100 g version of Kimberly Clark LusrroMto ™, 1 side can also be used.
Fig. 4 shows the cross section of a plastic case (8) supported by a SiMcona coated paper (2), to which it has been heat laminated with the SiMcona coating (3a) in contact with the plastic particle. This laminate is preferred for the two-step application of a composite sheet on an image. As indicated in connection with Fig. 3 above, it is also one of the preferred versions for transferring images located on coated papers.
Fig. 5 shows the cross section of one of the preferred plastic film laminates of Fig. 3, positioned with the plastic film (8) in contact with the adhesive (1), separated from the coating (2). I have found that an extruded polymethylene particle can be bonded to the adhesive, without heat application, while polyurethane or acrylic feeds require low heat pressing. The three mentioned motifs are examples of pictures that have been thoroughly tested for image transfer according to this invention. However, any thermoplastic or thermally bonded peculate to which the adhesive adheres can also be used, for example, mylar and vinyl films, both having been successfully tested for adhesion. Fig. 6 shows the cross section of the laminate of Fig. 5 positioned with the adhesive (1) separated from its second cover (4), in contact with the image (5) to be transferred. No heat is required and little pressure. Regarding the latter, it is recommended that for a consumer version of a transfer kit an applicator, such as a tongue depressor, be included, along with instructions prescribing that the laminate be rubbed onto the backing paper (7) before submerge it. Fig. 7 shows the cross section of the finished decal, after the submersion and subsequent detachment of the imaging paper backing of the laminate shown in Fig. 6.
Fig. 8 shows the cross section of the decal of Fig. 7, positioned on a substrate, such as a t-shirt. Fig. 9 shows the cross section of the decal of Fig. 7, placed on a substrate, as shown in Fig. 8, having been pressed for 20 seconds, covered with a wet ironing cloth, at a temperature of wool "or Mgeramente major. The moisture and steam created by the pressing causes the bond between the supporting paper (7) and the plastic sheet (8) to loosen, and the heat causes the adhesive (1) to migrate through the image (5) , and slightly within the surface (the) of the substrate (9). By slightly twisting the decal, the support paper (7) will be completely separated, and can now be peeled off, as indicated. Fig. 10 shows the cross section of the transfer termination initiated in Fig. 9. The decal is covered with a release paper coated with SiMcona (10) and pressed for 30 seconds with the plate at a temperature of between " wool "and" cotton ". This causes the adhesive (1) to migrate deeper into the substrate 9, giving the transfer a firm grip. In this way, transfers to fabric become completely machine washable. Upon cooling, the coated SiMcona paper (10) is removed, as indicated. The transfer is complete and the surface is therefore decorated. Fig. 11 shows the cross section of an adhesive decal, obtained by covering the image (in reverse) of the decal shown in Fig. 7 with a layer of transfer adhesive (1), with its second coating still covering the adhesive surface . This figure has been included in order to show two additional options in the application of decals obtained with a composite sheet according to the present invention. The first is to use the transfer adhesive (1) in order to stick the decal on the substrate, as shown in Fig. 12. The second is to use the ability of the adhesive to migrate in order to reinforce the strength of the bond, as explained in relation to Figure 12. Fig. 12 shows the cross section of the decal adhesive shown in Fig. 11 detached from its coating and applied on a substrate (9). If the transfer adhesive (1) is a rubber-based melt adhesive, the transfer is resistant to moisture and even submersion in water. By penetrating the surface of the coating of the backing paper (7) by rubbing with a coarse fiber, for example, and then covering the surface with a damp cloth, the backing paper can be peeled off after a few minutes of soaking. However, if the decal is applied in the manner set forth in relation to Figs. 9 and 10 (that is, first pressed with a wet cloth for 20 seconds), the supporting paper (7) can be peeled off. If, subsequently, the transferred image is pressed in the manner set forth in relation to Figure 10 above, the link that was originally obtained as an adhesive link between the reverse image of the decal and the surface of the substrate will be considerably reinforced, to the heat activation of the adhesive and the subsequent migration thereof within the cross section of the substrate, as explained in connection with Fig. 10.
EXAMPLES Example 1. A color laser copy was to be transferred to a Menzo. The image was cut leaving a small margin around its perimeter and placed on a sheet of paper coated with SiMcona, face up. A similar piece of heavy duty composite sheet was also cut, having a support paper with detachment from siMcona. The coating was removed and the composite sheet was placed with the adhesive in contact with the image. The laminate was then die cut and immersed in water. After 2 minutes of soaking, it was removed and placed with the image paper backing on a wet pressing cloth and pressed for 15 to 20 seconds at a temperature of between "poester" and "cotton". Then the backing of image paper was detached. The decal had now been completed, ready for immediate or subsequent application, as follows: The decal was positioned over the Menzo and pressed for 30 seconds at a "wool" or slightly higher temperature. Upon cooling, the support sheet of the composite sheet was peeled off. The transfer was complete. Note: For "a heavy duty composite sheet", I mean a support sheet with a double layer of adhesive for the purpose of assisting the migration of the adhesive through the triple coating. By transferring the semi-white coating along with the image, it will preserve the colors of the image, although the Menzo is gray. Example 2. A magazine illustration was to be transferred to a shirt. The image was cut out and placed on top of a SiMcona coated release paper. Then a similar piece of a composite sheet was cut out with a backing sheet, consisting of a paper coated on one side. The coating was removed and the sheet with its adhesive surface in contact with the image was positioned. To ensure good contact, the laminate was then rubbed with a rubber roller. Then he submerged in water. After 1 hour of soaking, the laminate was removed and placed on the work table with the image paper back up. The saturated paper of the reverse image was then peeled off, which was then cleaned well and trimmed. The decal was now complete, ready for immediate application or later application. The application was made as follows: The decal was placed with the image in reverse, dry, in contact with the shirt, and covered with a wet press cloth. After 20 seconds pressing with the plate at the temperature of "wool", or Mgemly greater, the press fabric was removed and the transfer was slightly twisted, after which the composite sheet support paper was removed and the image transferred with a cloth. It was then covered with a paper for ironing (a parchment coated with SiMcona) and pressed for 30 seconds with the iron at a "wool" temperature, or slightly higher. Upon cooling, the paper for pressing was removed. The transfer was complete.
Example 3. A painter used a pattern that was printed on triple-coated paper, using an inkjet printer. Then the painter traced the pattern using permanent markers. In view of the fact that the inks of most ink jet printers are water soluble, the painter drew those lines of the pattern that should remain, and then transferred the paint with the same compound sheet and in the same way which is described in Example 1. The transferred paint contained no colors and lines other than those made by the painter, and there was absolutely no trace of the ink jet printing. Example 4. A magazine illustration was to be transferred to a wooden plate with a slightly uneven surface. The decal was prepared in the manner described in Example 2, and allowed to dry. Once dry, the reverse image was covered with transfer adhesive. The liner was removed and the decal positioned with the adhesive in contact with the plate. This gave the transferred image a relatively good retention, but in order to further increase the latter and remove the backing paper, the decal was pressed and the backing paper was removed in the same manner described in Example 2. The pressing caused the sticker on the decal to migrate through. of the transfer adhesive layer, inside the cross section of the plate, imparting to the transferred image a better retention than before the pressing. Note: If the transfer adhesive consists of a rubber-based melt adhesive, it will also migrate. Example 5. Professional handicraft producers can use this invention for the purpose of manufacturing "hand-painted" products, such as t-shirts, blouses, bags, decorated plates, etc. The production steps are as follows: 1. Print the patterns or silhouettes of the image on triple-coated paper. Any printing method can be used, for example, offset, letterpress printing, digital color printers, etc. 2. Color the printed silhouettes with artistic markers. Most brands work. If the silhouettes have been printed on a printer with water-soluble inks, such as most ink jet printers, every detail of the printed silhouette must be plotted, since the printing will disappear in the transfer process. To facilitate the layout, print with light colors. The color patterns are then converted into decals as follows: 1. Use a composite sheet with a supporting paper consisting of a coated paper on one side, which has been lightly laminated to the plastic sheet, that is, sufficiently well to resist removal of the adhesive coating and sufficiently lightly to loosen and separate from the plastic film after a few minutes of soaking. Apply one such composite sheet on the color patterns. 2. Cut out the die-cut laminates. 3. Immerse the laminates. After about 5 minutes, remove them and place them on a damp cloth. Soaking loosens the paper backing of the image as well as the supporting paper of the composite sheet, which can both now be peeled off. The wet cloth will keep the supporting paper moist. Making sure that the laminates are in the same position in relation to the loose support paper, press or rub the backing of the image paper to ensure a good contact and detach it. Clean the exposed image of each laminate. The decals are now finished. Each decal is applied on the respective surfaces as follows: 1. Apply a layer of a suitable adhesive to the decal image. A "glue stick" adhesive can be used for application on surfaces such as paper. The glue stick adhesive is also suitable for the purpose of holding the decal lightly on the surface of materials on which the decal will be affixed with an iron. In this case, the adhesive will impart a slight retention to the decal and will prevent the edges from rising while the backing paper is peeling. In this case, the edges only need to be coated with adhesive. 2. Apply the decal on the surface. Press on the edges. Wait a few minutes for the adhesive to act. Then detach the loose support paper, clean the exposed image and cover it with a peeling paper and press for 30 seconds with the plate at a temperature between "polyester" and "wool", or Mgeramente higher. The modest heat will cause the decal adhesive to migrate through the image layer as well as through the coated adhesive layer, and impart a machine-washable hold to the transferred image. Allow to cool. Once cold remove the pressing paper. The transfer is finished.

Claims (20)

  1. CLAIMS 1. A process for transferring an image that is present in a paper to a surface comprising the steps of: providing a composite sheet laminate having a layer of plastic film, at least one layer of melt adhesive in the rubber based adjacent to the plastic film layer and an image forming layer having a layer on the further side adjacent to the at least one layer of rubber-based rubber adhesive and an outer layer adjacent to the paper containing the image and covering the outer side layer of the image forming layer; obtaining a decal by washing away the paper containing the image to be transferred and exposing the outer side layer of the image forming layer; positioning the decal so that the outer side layer of the image forming layer makes contact with the surface; and applying heat to the peelable plastic film layer where the rubber-based melt adhesive migrates through the image-forming layer, transferring the image to the surface.
  2. 2. A process for transferring an image that is present on a paper to a surface comprising the steps of: providing a composite sheet laminate having a layer of peel-off backing sheet, a layer of plastic film adjacent to the sheet removable support, at least one layer of rubber-based melt adhesive adjacent to the plastic film layer and an image-forming layer having an inner side layer adjacent to the at least one layer of adhesive rubber-based melting and an outer side layer adjacent to the paper containing the image and covering the outer side layer of the image forming layer; obtaining a decal by washing away the paper containing the image to be transferred and exposing the outer side layer of the image forming layer; positioning the decal so that the outer side layer of the image forming layer makes contact with the surface; and applying heat to the release backing sheet layer where the rubber-based melt adhesive migrates through the image forming layer, transferring the image to the surface; and removing the layer of detachable support sheet.
  3. 3. A process for transferring an image that is present on a paper to a surface comprising the steps of: providing a composite sheet laminate having a layer of plastic film, at least one layer of melt adhesive in a rubber base adjacent to the plastic film layer and an image forming layer having an inner side layer adjacent to the at least one layer of rubber-based rubber melt adhesive and an outer side layer adjacent to the paper containing the image and covering the outer side layer of the image forming layer; obtaining a decal by washing away the paper containing the image to be transferred and exposing the outer side layer of the image forming layer; applying an adhesive to the outer side layer of the image forming layer where the image is coated with the adhesive and forms a layer of exposed adhesive; positioning the decal so that the exposed adhesive layer contacts the surface; and applying heat to the plastic film layer where the rubber-based melt adhesive migrates through both the image-forming layer and the exposed adhesive layer by transferring the image to the surface.
  4. 4. The process for transferring an image that is present in a paper to a surface according to claim 3, wherein the adhesive is a non-rubber based melt adhesive.
  5. 5. The process for transferring an image that is present on a paper to a surface according to claim 3, wherein the adhesive is affixed with a stick of glue.
  6. 6. The process for transferring an image that is present in a paper to a surface according to claim 3, wherein the adhesive is a non-rubber based melt adhesive.
  7. 7. A process for transferring an image that is present on a paper to a surface comprising the steps of: providing a composite sheet laminate having a layer of peel-off backing sheet, a layer of plastic film adjacent to the peel backing sheet , at least one layer of rubber-based melt adhesive adjacent to the plastic film layer and an image-forming layer having an inner side layer adjacent to the at least one layer of melt adhesive in rubber-based layer and an outer side layer adjacent to the paper containing the image and covering the outer side layer of the image forming layer; obtaining a decal by washing away the paper containing the image to be transferred and exposing the outer side layer of the image forming layer; applying an adhesive to the outer side layer of the image forming layer where the image is coated with the adhesive and forms a layer of exposed adhesive; positioning the decal so that the exposed adhesive layer contacts the surface; applying heat to the release backing sheet layer where the rubber-based hot fixation adhesive migrates through both the image forming layer and the exposed adhesive layer transferring the image to the surface; and removing the layer of detachable support sheet.
  8. 8. The process for transferring an image that is present on a paper to a surface according to claim 7, wherein the adhesive is a non-rubber-based adhesive of fi ssion.
  9. 9. The process for transferring an image that is present in a paper to a surface according to claim 7, wherein the adhesive is affixed with a stick of glue.
  10. 10. The process for transferring an image that is present on a paper to a surface according to claim 7, wherein the adhesive is a rubber based melt adhesive.
  11. 11. A heat activated image transfer laminate comprising: a first layer; the first layer being a plastic particle; a second layer coplanar to the first layer; the second layer being a rubber-based silicon adhesive; a third layer coplanar to the second layer; and the third layer is an image to be transferred to a surface.
  12. 12. A method for transferring an image that is present on a paper to a surface comprising: obtaining a heat activated image transfer laminate having an image transfer side and a plastic particle side; placing the image on the image transfer side of the heat-activated image laminate; placing the heat transfer image laminate on the desired surface; apply heat to the plastic film side of the heat activated image transfer laminate; and remove the heat-activated laminate from the surface.
  13. 13. A heat activated image transfer laminate with release peel sheet comprising: a first layer; the first layer being a removable support sheet; a second layer coplanar to the first layer; the second layer being a plastic particle; a third layer coplanar to the second layer; the third layer being a melt adhesive based on rubber; a fourth layer coplanar to the third layer; and the fourth layer is an image to be transferred to a surface.
  14. 14. A method for transferring an image that is present on a paper to a surface comprising: obtaining a heat activated image transfer laminate with peel-away backing sheet having an image transfer side opposite a peel-off backing sheet; placing the image on the image transfer side of the heat activated image transfer laminate with peel-off backing sheet; place the heat-activated image transfer laminate with detachable support sheet on the desired surface; apply heat to the detachable support sheet; and removing the heat activated laminate with a removable support sheet from the surface.
  15. 15. The process for transferring an image that is present on a paper to a surface according to claim 1, wherein the plastic film layer is a thermoplastic resin.
  16. 16. The process for transferring an image that is present in a paper to a surface according to claim 1, wherein the plastic film layer is a thermal setting resin.
  17. 17. The process for transferring an image that is present in a paper to a surface according to claim 1, wherein the paper is a paper coated on one side.
  18. 18. The process for transferring an image that is present on a paper to a surface according to claim 2, wherein the layer of peel-off backing sheet is polymethylene.
  19. 19. The process for transferring an image that is present on a paper to a surface according to claim 2, wherein the layer of peel-off backing sheet is a paper coated with a dissolvable adhesive.
  20. 20. The process for transferring an image that is present in a paper to a surface according to claim 2, wherein the layer of peel-off backing sheet is a coated paper with a peelable adhesive.
MXPA/A/2005/002046A 2005-02-21 Transfer method for surface decoration MXPA05002046A (en)

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MXPA05002046A true MXPA05002046A (en) 2006-10-17

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