JP2019111799A - Sublimation transcription method and transfer instrument - Google Patents

Abstract

To solve a problem with a conventional sublimation transcription onto a clothing made of synthetic fiber fabric where a dented trace in the shape of a heat-pressed transcription paper remains on the fabric and a ghost problem where images overlap.SOLUTION: The invention employs PVA resin film that is sufficiently thin as a transfer medium, and thereby controls fabric dent and prevents a trace from remaining. The film's property of heat adhesion onto fabric solves the ghost problem. The film's problem of being easy to heat-deform, which causes a trouble to the usability, is solved by using a hollow transfer instrument.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a sublimation transfer method and a transfer tool.

  A sublimation transfer method using paper as a transfer medium is known as an image forming method when the material to be transferred is a synthetic fiber-based garment such as polyester. The image is printed on a transfer paper with an aqueous sublimation ink, the image side of the transfer paper is placed on the clothes placed on the lower platen, and the upper platen is lowered from above and heat pressed. A small-sized heat press type transfer machine is widely used for T-shirt printing of polyester fabric and the like.

  On the other hand, for image transfer to a three-dimensional object, there is a vacuum sublimation transfer method. In this method, a thermoplastic film that is easily softened by heating is used as a transfer medium, and a negative pressure generated by a vacuum pump is applied to cause the heat-softened transfer film to be adsorbed onto a three-dimensional object. The films used as transfer media employed in Patent Document 1 and Patent Document 2 are described as polyvinyl alcohol (PVA) resin film of 100 to 300 μm thickness and non-stretched PET (APET) resin film of 100 to 250 μm thickness, respectively. It is done. These heat softening and deforming properties are not only unnecessary in flat printing, but also difficult and inconvenient to handle, and are not used for sublimation image transfer to clothes.

  Although it is not for sublimation transfer, if it is a PVA resin film for water pressure transfer of a pigment image, it is easy to obtain a 30 μm thick product. Similar to PVA resin films, there are oblate films made from starch among the films that are water soluble and readily available on the market. Oblate films are considered to be safe when taken into the body, and are sold for use in packaging medicines and confectionery. It is easy to obtain a confectionery oblate film, a thickness of 40 μm, and a medicated oblate film 20 μm. Because it is water soluble, it can be printed with aqueous ink, and the image is printed with aqueous edible ink. It is not used for sublimation image transfer.

Patent Publication EP1092550A2 Patent publication US8557355 B2

  As described above, a heat press sublimation transfer method using paper as a transfer medium widely used for image transfer to synthetic fiber garments, but clothing that has been crushed by the thickness of the transfer paper by heat press, There was a problem that a dented mark was left in the form of transfer paper. Even if the thickness of the commercially available sublimation transfer paper is thin, it is 90 μm or more. However, since the paper is hard and not heat-softened, even if it is about 40 μm, the problem of transfer paper marks can not be excluded depending on the clothes. It is impossible to improve the process even by producing thinner transfer paper or soft transfer paper with a porous structure, but it is difficult to handle and it is not preferable because the sublimation gas escapes to the back side when image is hot pressed. . Another problem with the dents of the transfer paper is the ghost problem. In the case of a heat-shrinkable fabric, the amount of heat-shrinkage differs greatly from that of the transfer paper, and simultaneously with the release of the press pressure, the fabric shrinks to cause misregistration resulting in a ghost problem in which the image is doubled. The negative pressure generated when the upper platen is raised after transfer causes the transfer sheet to lift up and fall to a position deviated from the original cloth position, resulting in a ghost problem in which the image sags.

  In the case of vacuum sublimation transfer to a three-dimensional object, an expensive film is used because it is necessary to utilize heat-softening and stretching properties, but as noted above, it is used for sublimation image transfer to clothing. Absent. The present inventors daredly tried sublimation transfer to clothing using a water-soluble PVA resin film and an APET film whether the problem of the clothing fabric being indented in the form of a film can be removed by heat press. Even if it is intended to thin APET film, manufacture of about 80 μm is the limit in the industry today, and the problem of the fabric being dented in the form of the film to be heat-pressed can not be avoided. Even with a water-soluble PVA film, the same problem remains if the minimum thickness of 100 μm described in Patent Document 1 is used. It has been found that a 30 μm PVA film for hydraulic transfer, which is easily available, can eliminate the problem of the fabric being dented in the form of a film by heat pressing. However, it has been confirmed that the film deformation starts instantaneously when placed on the fabric placed on the lower platen which has been warmed in a continuous operation. Film deformation before transfer is not preferable because the image is distorted and misaligned. If a 50 μm thick polyester film is attached as a carrier to a water-soluble PVA resin, deformation can be prevented, but since it becomes thick, there remains a problem that the fabric is recessed in the form of a film by heat press.

  According to the present invention, even if a water-soluble resin film is used for sublimation transfer to clothes in order to avoid the problem that the concave marks in the form of transfer paper remain in the fabric, positioning of the image and transfer work can be facilitated. Even with a heat-shrinkable fabric, the problem of ghosting due to water-soluble resin film and transfer paper shrinkage difference during heat press, and the problem of ghosting arising from floating of transfer paper due to negative pressure generated when the upper platen is raised after transfer It is an object of the present invention to provide a method of forming a sublimation transfer image on clothes.

  According to the first aspect of the present invention, there is provided a heat press type transfer machine in which a lower platen for placing clothes and a heated upper platen move relatively close to each other to thermally press clothes. In the sublimation transfer method used, the first step of spreading and holding the clothes using the image transfer extension jig, and the image-formed synthetic polymer-based water-soluble resin film on the clothes with the extension jig through the first step A second step of pressing a temporary adhesive via a pressure-sensitive adhesive, or swelling a part of a water-soluble resin by applying water (non-heating), and pressing a temporary bond, and a garment having undergone the second step A fourth step of transferring the upper platen to the lower platen, a fourth step of relatively moving the upper platen on the garment subjected to the third step, and heat-pressing the water-soluble material from the garment subjected to the fourth step And a fifth step of removing the resin film. It is obtained by employing a method for forming sublimation transfer images on clothing.

  Further, according to a second problem solution means, in the fourth step of the first problem solution means, the expansion jig is fixed in a hollow structure so that the expansion jig is not pressurized when the clothes are heat-pressed. The expansion jig is made to hang down below the lower platen when the inner size of the hollow structure is made larger than the size of the lower platen and the expansion-fitting garment is placed on the lower platen, or A spacer of a size smaller than the inner size of the hollow structure and thicker than the thickness of the expansion jig having silicon rubber or felt on the upper surface is placed on the lower platen to place the expansion jig-equipped garment thereon. In this method, a sublimation transfer image is formed on the clothes by adopting any means such that the expansion jig hangs down from the spacer.

  In a third solution means, the means for spreading and holding the clothes in the first step of the first means solves a hollow extension jig consisting of a pipe in which a frame is connected in a loop. A means for inserting and spreading out from below in the body length direction, or using a hollow extension jig whose frame is composed of a pair of inner and outer rings, the upper side toward the lower inner ring on which the spread garment is placed. It is a method of forming a sublimation transfer image on the clothes, which is any of means for holding the clothes in a spread state by pressing down the outer ring.

  The fourth problem solving means is characterized in that a fitting portion for positioning on a heat press type transfer machine is provided in at least one of the upper and lower portions in the height direction of the expansion jig. A method of forming a sublimation transfer image on clothes is adopted.

  The fifth problem solution means is the first to fourth problem solution means having a structure in which the extension jig can adjust its length in at least one direction of the body width direction or the body length direction according to the size of the clothes. , A method of forming a sublimation transfer image on clothes.

  Further, according to the sixth problem solving means, in the first to fifth problem solving means, when the water-soluble resin film is removed from the clothes, the extension jig is not lifted together with the force for pulling up the oil film. This is a method of forming a sublimation transfer image on clothing provided with a hook portion to be pressed downward on at least one of the back side and the front side of the transfer machine.

  A seventh problem solving means is the first to sixth problem solving means, wherein temporary bonding is possible in the method of temporarily bonding the image-formed synthetic polymer water-soluble resin film in the second step to the clothes. The pressure-sensitive adhesive is obtained from a double-sided pressure-sensitive adhesive tape attached near the periphery of the front surface of the water-soluble resin film, and the water-soluble resin film is pressed from the back to the garment in a state where the carrier sheet adheres to the back In this method, the carrier sheet is removed from the back side of the water-soluble resin film after temporary adhesion and before hot pressing, which is a method for forming a sublimation transfer image on clothes.

  An eighth problem solving means according to any one of the first to seventh problem solving means is a polyvinyl alcohol (PVA) resin film having a thickness of 60 μm or less for the synthetic polymer water-soluble resin film, and the pressure-sensitive adhesive The adhesion layer thickness is a method of forming a sublimation transfer image on clothes having a thickness of 50 μm or less.

  In the ninth problem solving means, the carrier sheet is attached to the back side, the double-sided pressure-sensitive adhesive tape is attached in a state where the release liner is attached near the periphery of the front side, It is a synthetic polymer water-soluble resin film characterized in that the surface without peeling treatment is exposed.

  The tenth problem solving means is a synthetic polymer water-soluble resin film according to claim 9, wherein the water-soluble resin is a PVA resin having a thickness of 60 μ or less.

The operation of the first problem solving means is as follows. When offset printing, screen printing, or inkjet printing is performed using an aqueous sublimation transfer ink, if the object to be printed is a water-soluble resin film, water is absorbed, and thus the coating of the ink receiving layer can be omitted. Compared to the case where the water-insoluble APET resin film used for the sublimation transfer to the same three-dimensional object requires the formation of the ink receiving layer, it is inexpensive and easy to manufacture. Also, unlike the APET film, which has a limit of film thickness of about 80 μm at the current level of industrial technology, it is easy to obtain a water-soluble resin film with a film thickness of 30 μm or 15 μm. Concerns can be made negligible. However, since the film is thin, its use requires the methods of the first to fifth steps of the present invention to compensate for the difficulty of handling.
In conventional sublimation transfer using a press-type thermal transfer machine, work is first performed to spread the clothes on the lower platen so as not to be wrinkled at the time of heat press, and then the image-printed transfer paper is covered. This procedure can be taken because the transfer paper is hardly thermally deformed. On the other hand, when the water-soluble resin film is put on the clothing on the lower platen which has become hot in the continuous transfer operation, the contained water is evaporated and curved and starts to move. Among the water-soluble resin films, those used in the method of the present invention are synthetic polymer films. Hereinafter, a natural polymer film having no heat softening property such as a wafer film and having a small tensile strength and a synthetic polymer film having a heat softening property such as a PVA resin and having a large tensile strength will be described separately.
The synthetic polymer-based film has a significant degree of bending and movement as compared with a natural polymer-based film. The only way to suppress deformation is to proceed with the transfer operation quickly or at a low temperature. An apparatus which enables working in a low temperature environment quickly is the image transfer extension jig of the present invention. The second step is also to facilitate the second step of holding the water-soluble resin film temporarily at a predetermined position by spreading and holding the clothes flat by outer step. Pressure-sensitive adhesive for temporary adhesion to the periphery of the water-soluble resin film is a method of removing the double-sided pressure-sensitive adhesive tape release liner and leaving the pressure-sensitive adhesive layer, a method of transferring only the adhesive layer since the cartridge with a roller head is moved It can be applied by a method of blowing an adhesive to form an adhesive layer, or the like. The carrier sheet is removed prior to heat pressing. The great advantage of using the expansion jig is that the series of operations up to this point can be performed at the room temperature as an external setup, not on the transfer machine.
The tackiness for temporary adhesion can also be obtained by applying water to the front surface of the water-soluble resin film instead of applying the adhesive layer. However, if the amount of applied water is too large, the adhesion of the swollen portion becomes too strong, which makes it difficult to peel off the water-soluble resin film from the clothes, so it is preferable to keep the amount of applied water constant. Moisture is applied to the corner where there is no image, since it exudes when it reaches the image portion.
The third step of transferring the clothes onto the lower platen of the thermal transfer machine next to the temporary bonding is also facilitated. After transfer, no additional work is required, so the fourth step of lowering the upper platen and performing heat pressing can be performed quickly. In the fifth step of removing the water-soluble resin film from the clothes, the adhesion to the smooth film side is greater than the adhesion to the uneven clothes, so the adhesive layer does not remain on the clothes and adheres to the film.
The natural polymer water-soluble resin film is excluded from the method of the present invention because this fifth step is a problem. That is, a natural polymer-based water-soluble film can be sublimated and transferred by heat pressing when the image is clean, but the film becomes brittle due to heat and tends to be shattered. Most of the shattered film fragments can be absorbed by a vacuum cleaner or the like, but the portion with the adhesive layer on the lower side is difficult to peel off. Unlike a synthetic polymer water-soluble resin film having a large tensile strength, the film can not be easily peeled off because it can be broken even if it is pulled. With a synthetic polymer-based water-soluble resin film, the portion with the adhesive layer can be easily pulled off the clothes by pulling the film.
The use of the synthetic polymer-based water-soluble resin film is also beneficial in the fifth step because it has adhesiveness to a material having a porous surface such as fiber or paper. When heat pressed, the film adheres to the garment and pulling up the upper platen eliminates the conventional ghosting problem. Even if a negative pressure occurs, it does not lift from the clothes, and as the clothes shrink, the film shrinks. However, since the adhesive strength is not strong, there is no problem in peeling off the film from the clothes. In addition, since the natural polymer water-soluble resin film does not exhibit adhesion to a material having a porous surface such as fibers even if it is heated, it can not be a countermeasure against ghosts.

  The action by the second problem solution means is that, in the fourth step in which the clothes are heat-pressed, the expansion jig is not pressurized and thus the temperature does not rise, and the same expansion jig can be used repeatedly. In the case of a conventional printing jig in which a flat plate of wood or aluminum is cut in the shape of a garment, it is heat-pressed together with the garment and heated. Continued use of this jig warms up the clothes into which it is inserted, and causes a thermal deformation problem when attaching the water-soluble resin film. Therefore, the jig of this shape has to be cooled before it is used, which is disadvantageous because continuous printing requires a large number of jigs. If the lower platen of the heat press type transfer machine can be used to hold the clothes flat, the condition that the flat portion for holding the fabric horizontally as in the conventional jig must be eliminated is not necessary. A hollow structure in which the expansion jig, which is a requirement in the fourth step, is not pressurized is acceptable.

  In the case of the hollow structure (hereinafter referred to as a loop type frame) in which the expansion jig frame is a loop connected pipe, the action according to the third problem solution means is lightened by a curve, and the clothing is inserted from below It is also very easy to spread the clothes and transfer them with the clothes. Since the aluminum loop type frame provides flexibility, there is also an advantage that it is easy to hold and hold the support column for positioning for installation on the side of the heat press type transfer machine. In the case of a hollow extension jig in which the frame comprises a pair of inner ring and outer ring, it holds a part of the spread garment. Since it is not necessary to expand the size of the clothes, it is possible to obtain the advantage that it is not necessary to adjust the jig size according to the size of the clothes. The inner ring and the outer ring are required to have rigidity to hold and hold the cloth of clothes, which is advantageous for accurate positioning by adding parts for proper positioning.

  According to the function of the fourth problem solving means, regardless of the size of the expansion jig hollow structure portion, the clothes can be placed with their centers aligned when inserted from above the lower platen. The standard method for opening the upper platen of the heat press type transfer machine from the lower platen is to open it hingedly upward or pull it up a few centimeters and then move it horizontally in any case. I can not get a large space on the far side. Therefore, for placing the clothes, the expansion jig is inserted obliquely downward aiming at a narrow gap, and it is convenient that the positioning fitting portion is at the upper side in the body length direction. Moreover, in order to take out a frame from the neck part of clothes, the center vicinity is good. Furthermore, the same positioning fitting at the bottom allows a complete positioning and mounting of the garment. The lower positioning fitting portion may be provided other than near the center. Since positioning of the image and the clothing ends with the application of the water-soluble resin film, positioning at the time of setting is intended to prevent the large image from protruding from the pressing range. In the normal range, it is sufficient if at least one of the upper and lower sides of the extension jig has a positioning fitting portion. The fitting can be performed by forming asperities and through holes on the extension jig frame side or the transfer machine side.

  The action by the fifth problem solution means is that it is not necessary to prepare a plurality of jigs by size even if the size of the clothes changes. In the case of the loop type frame expansion jig, it is sufficient to manufacture it in a sufficient length in the length direction and have a structure capable of adjusting the length in the width direction. As the adjustment mechanism, a clad extension mechanism used also for a retractable clothes dryer, a shaft of a loop type frame, or a method of cutting a female screw in a pipe and adding a rod having a female screw can be used. In the case of the expansion jig consisting of a pair of inner ring and outer ring, it is sufficient to slide and fix the "U" -shaped frame for adjustment in either one of the width direction and the length direction. In both directions, it is good to be able to slide the frame of "く" in the diagonal direction.

According to the sixth aspect of the present invention, when removing the slightly tacky transfer paper from the clothes after transfer, it is usually necessary to hold the clothes with one hand when pulling up the transfer paper. In this case, the adhesive force by the adhesive is also added, and it is effective to provide a hook portion which holds the extension jig downward so as not to be lifted together. That is, resin film peeling can be performed using both hands.

  The action of the seventh problem solving means locates the image on the clothes when temporarily attaching the water-soluble resin film to the clothes, corrects the tilt of the image, and arranges the clothes in a flat shape without deforming the water-soluble resin film. And other tasks can be easily performed in a short time. In addition, the carrier sheet attached to the back of the water-soluble resin film can be quickly removed before hot pressing. Since the water-soluble resin film has a carrier sheet attached on the back side, and a double-sided pressure-sensitive adhesive tape for temporary adhesion to clothes is attached to the front surface of the water-soluble resin film, these become possible. Water-soluble resin films are susceptible to room humidity and difficult to maintain in a flat state. Without a carrier sheet, it is also difficult to pass through the printer. Also, temporary adhesion to clothing may be achieved by removing the release liner of the double-sided pressure-sensitive adhesive tape to expose and press the pressure-sensitive adhesive layer. In the process of removing the carrier sheet from the water-soluble resin film, select a double-sided adhesive tape that increases the adhesion of the film to the clothes than the adhesive force of the carrier sheet and the film, and then lift off from one end of the carrier sheet Just do it. When the double-sided pressure-sensitive adhesive tape is attached to the front side of the water-soluble resin film after the image formation, a general-purpose double-sided pressure-sensitive adhesive tape may be used in which the liner is subjected to double-sided peeling treatment. Before image formation, it is necessary to devise that the water-soluble resin film normally passes through the printer. If a general release liner having a release surface exposed is attached to the front side of the film, the film slips when it is caught by the printer feed roller, causing a printing failure. This is not the case if the double-sided adhesive tape is attached to a position where the release liner is not pinched by the printer feed roller.

  The effect of the eighth problem solving means is that the PVA resin has heat softening property, and the film can be further softened by increasing the content of the plasticizer, but even if the content of the plasticizer is zero and the film is hardened, the thickness of the PVA resin film If it is up to about 60 μm, the level at which the clothing fabric is recessed in the form of a film is within an acceptable range. It also has the property of being adhered to the fabric when it is heat pressed, thus avoiding ghosting problems. Not only the PVA resin film but also the thickness of the adhesive layer influences the dent mark of the clothing fabric. Many commercially available double-sided pressure-sensitive adhesive tapes have a pressure-sensitive adhesive layer thickness of 100 μm or more, and not only a dent mark remains, but also the pressure-sensitive adhesive penetrates into the cloth of clothes and makes peeling after heat pressing difficult. When the thickness of the adhesive layer is 50 μm or less, the dent mark of the fabric is not a problem and peeling from the fabric is easy.

  The function of the ninth problem solving means is that before the image printing with the printer, if the liner of the double-sided pressure-sensitive adhesive tape attached to the water-soluble resin film is a single-sided peeling treated liner and the side without peeling treatment is exposed. Water-soluble resin film. Film that has a commonly used double-sided release-treated liner slips when it is pinched by the feed roller when it is passed through a printer, causing the film to not straighten properly and to be inclined or its position to be Misalignment may cause printing defects. A liner with exposed surfaces without release treatment can prevent slippage.

  The effect of the tenth problem solving means is that it is possible to provide a film capable of obtaining the effect of the eighth problem solving means.

  Next, the present invention will be supplementarily described. As the synthetic polymer-based water-soluble resin, those mainly composed of polyvinyl alcohol, water-soluble polyurethane, polyvinyl pyrrolidone, polyacrylamide and the like can be used.

  Instead of a standard heat-press transfer machine in which the lower platen and the upper planne are disposed opposite to each other, the clothes are placed on a horizontally moving tray covered with a frame coming out to the front, and the tray is There is also a tray reciprocating heat press type transfer machine in which the vertically operable lower platen is raised and the garment is sandwiched between the upper platen and heat pressed when fed again to the opposite position. Also in the case of such a model, if the rising lower platen itself or the spacer placed thereon is smaller than the size of the expansion jig and the height is high, the expansion jig between the lower platen and the upper platen It is possible to heat press so as not to get caught. In this case, the tray is not a full cloth tray, but is preferably shaped so that the expansion jig can be placed without the cloth. The support columns provided on the back side and the front side of the transfer machine for setting the extension jig for the purpose of positioning may be provided on the moving tray.

  The extension jig is used by moving and the weight is preferably light. The loop type frame may be a shaft such as a round bar, but a pipe structure is preferable. In the case of an aluminum material or a stainless steel material, a round pipe having a thickness of about 1 to 2 mm and a diameter of about 6 to 20 mm is preferable. The shape for expanding the clothes is preferably configured as a flat hollow loop type so that it can be easily passed through the clothes and not be caught between the lower platen and the upper platen in the heat pressing process.

  For temporary bonding in the second step, a double-sided pressure-sensitive adhesive tape is attached around the periphery of the water-soluble resin film front side. Here, in the case of A3 size paper, the vicinity of the periphery means a band-like range of up to about 15 mm from the outer periphery of the four sides toward the inside from the outer shape. Although it is good also considering all this range as a double-sided adhesive tape affixing range, it is enough if it is affixing on the two opposite sides. The length to be attached to one side may be the full length, but it may be somewhat shorter or may fly in a dot if it has an effect that the film is not distorted. About 2 to 15 mm is preferable, and 5 to 10 mm is more preferable. The film is pressed onto the garment after removing the release liner of the double sided adhesive tape and exposing the adhesive layer. In addition, the adhesive of an acrylic type or urethane type can be used for an adhesion layer.

  As described above, according to the present invention, even if a water-soluble resin film is used for sublimation transfer to clothes to avoid the problem that the dented marks in the form of the transfer paper remain on the fabric, the image positioning and transfer work It is possible to provide a method of forming a sublimation transfer image on a garment which can easily eliminate the ghost problem even with a heat-shrinkable fabric, and a film and jig for transfer.

It is a front view and a side view of an example of a water-soluble film showing an embodiment of the present invention. It is a schematic diagram of an example of a loop type frame expansion jig which shows an embodiment of the present invention. It is the front view and side view of the example of the expansion jig which consists of the inner ring and the outer ring which show the embodiment of the present invention. FIG. 1 is a front view and a side view of an example of a support provided on a thermal transfer machine showing an embodiment of the present invention.

  The mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 is a view showing a sublimation image transfer film of the present invention. On the front side of the water-soluble resin film 1 with the carrier sheet 4 attached on the back side, a pressure-sensitive adhesive layer 3 with a release liner 2 obtained from a double-sided pressure-sensitive adhesive tape is attached It is a thing.

  Reference numeral 5 in FIG. 2 denotes a loop type frame expansion jig, which can be inserted from the lower side of the T-shirt 8 (clothing) so that the cloth can be spread flat. The inner size of the hollow structure 9 is usually larger than the lower platen size. The loop type frame-attached T-shirt has a fitting portion 6 for positioning near the upper center of the loop type frame and a fitting portion 7 for lower positioning so that the T-shirt with a loop type frame is placed at a fixed position when transferred.

  FIG. 3 is a view showing an example of an expansion jig including a pair of inner ring (B) and outer ring (A) having a hollow structure portion 9. The size of the inner ring or the outer ring is changed depending on the fabric thickness of the clothes, but the gap between the two, ie, the distance between the inner ring outer shape and the inner side of the outer ring side plate is about 0.5 mm to 1 mm.

  FIG. 4 is a view showing the shapes of the front side support 11 and the back side support 12 of the present invention and an example of their mounting positions on a heat press type transfer machine. The timing when the work space is secured above the lower platen 10 by turning and moving the upper platen 14 about the transfer machine center back rotation axis 13 is shown. The back side post 12 has an inverted L-shaped hook facing upward in the drawing, and is drawn in a direction in which the extension jig 5 is hooked toward the near side direction. In the front support 11, an inverted L-shaped hook faces downward in the drawing, and the extension jig 5 is stretched in the length direction and hooked in the back direction only beyond the hook. If the uneven portions at the top and bottom of the loop type frame are placed on the ridges of the columns, the T-shirt transfer to the lower platen is completed. The back positioning and the hook may be made not by a support but by a band-like material wound and fixed on the center of the back of the transfer machine.

  Using an aluminum pipe with an outer diameter of 10 mm, a length of 2 m and a thickness of 1 mm, insert an aluminum rod with an outer diameter of 8.5 mm in a concave shape at the lower joint in the length direction An extension jig consisting of The aluminum pipe was bent at the top in the length direction to form a reverse concave shape. The expansion jig has a flat structure as a whole including the concave portion. The extension jig was inserted into a polyester T-shirt M for children, and the cloth was spread and placed on a work table. Next, a 20 μm-thick double-sided adhesive RIKA TAPE (trademark · · sandwiched between 38 μm and 75 μm-thick PET film) in a 30 μm-thick A4 size PVA resin film SO sheet (trademark · Icero Co., Ltd.) Nippon Rika Paper Co., Ltd. was sliced to a width of 5 mm and attached. The 75 μm-thick PET film release liner has an exposed surface without release treatment. The sticking direction was A4 size short direction, and the position was 5 mm inside from both ends, and it stuck by 200 mm length. An image was printed by passing through an ink jet printer PX6250S (trademark, Seiko Epson Corporation) equipped with a PXH aqueous sublimation ink (trademark, Sanryu Co., Ltd.). The SO sheet with carrier sheet passed through the printer without slipping and tilting, and the image could be printed without blurring. After the ink dried, the release liner was peeled off, and the SO sheet with the double-sided adhesive tape adhesive layer on both sides of the A4 size short direction exposed was pressed temporarily adhered to the T-shirt M predetermined position where the expansion jig is inserted. . Since both the carrier sheet and the PVA resin film were transparent, the image position was visible and positioning was easy. Finally, the carrier sheet was peeled off and ready for heat pressing. The T-shirt with an expansion jig obtained through the steps up to this point was transferred from the work table to the lower platen of an M204 hot press transfer machine (trademark · Insta Graphic Systems). The M204 transfer machine is provided with support posts for positioning on both the back side and the front side, and pressed the concavo-convex fitting parts provided at the top and bottom in the extension jig length direction. The T-shirt was placed on the lower platen at a predetermined position without bending. The size of the expansion jig for expanding the T-shirt M for children was sufficiently larger than the size of the M204 lower platen, and the expansion jig was in a state of hanging out from the lower platen. Advantageously, the T-shirt above the lower platen will be stretched. Immediately after transfer, the upper platen which had been heated to 190 ° C. was lowered and heat pressed. When the upper platen was pulled up after 1 minute and it was going to tear off the PVA resin film, it turned out that not only the double-sided adhesive tape adhesive layer part but the whole PVA resin film is adhered to the fabric. Since it is not strong adhesive force, it was easy to peel off if it was pulled up with one side of the film. As a result of closely adhering the film and the fabric so closely adhered, there is no positional displacement due to the difference in the expansion ratio of the two, and the transferred image is precisely reproduced without the occurrence of ghosting and the like. There was also no transfer film dent mark left on the fabric. In addition, from printing to transfer completion, a series of operations could be smoothly performed without being bothered by thermal deformation of the PVA resin film.

  An expansion jig consisting of an inner ring and an outer ring as shown in FIGS. 3A and 3B was made of a stainless steel material having an inner space size of 395 mm × 520 mm, a depth of 15 mm, and a thickness of 1.2 mm. When the gap between the inner ring and the outer ring is 0.5 mm, the polyester shirt is covered and spread from above the inner ring, and when the outer ring is inserted from above and lifted, the inner ring is crimped without falling off and holds the shirt. Thereafter, transfer to a press, thermal transfer, and peeling of a PVA resin film were performed in the same procedure as in Example 1.

  Example 1 using an A4 size SO sheet with a carrier sheet, a commercially available standard double-sided pressure-sensitive adhesive tape, a thin T4550 (trademark; NITOMS CORPORATION) for full thickness 120 μm super strong double-sided tape plastic, and a double-sided tape with a release liner It stuck in the same way. An image was printed by passing this through a printer PX6250S. Since the SO sheet with carrier sheet slipped at the release liner when the leading edge was pinched and passed by the paper feed roller, the image printed at that angle was bent and the position from the leading edge could not be printed correctly either . If you do not care about the position of the image and continue the work until transfer and check the dent mark of the fabric after transfer, the dent remains in the form of the double-sided adhesive tape, not the outline of the PVA resin film outline I understood.

  In place of the SO sheet in Example 1, an image was printed using 120 μm thick super fine paper KA3100SFR (trademark, Seiko Epson Corporation) as a sublimation transfer paper. This was placed on a polyester T-shirt for children T placed on the lower platen of a transfer machine, and heat-pressed under the same conditions as in Example 1. When the transfer paper was removed, a dent mark was left clearly in the size of the transfer paper on the polyester fabric.

  The present invention is intended to eliminate the occurrence of a dent in the form of a transfer sheet or a ghost problem in which an image is blurred when performing image transfer, and is used for image transfer to clothes using a heat press type transfer machine.

1 Water-soluble resin film 2 Peeling liner for double-sided tape 3 Adhesive layer for double-sided tape 4 Carrier sheet for water-soluble resin film 5 Loop-type frame expansion jig 6 Fitting part for positioning near the top center of loop-type frame 7 Loop-type frame lower Positioning Fitting 8 T-shirt (Clothing)
9 hollow structure portion 10 lower platen 11 front side support post 12 back side support post 13 transfer machine center back rotation shaft 14 upper platen

Claims (10)

In a sublimation transfer method using a heat press type transfer machine, in which a lower platen for placing clothes and a heated upper platen move relatively close to heat press the clothes,
A first step of spreading and holding the clothes using an image transfer extension jig;
Press the image-formed synthetic polymer-based water-soluble resin film through a pressure-sensitive adhesive to temporarily attach the image-formed synthetic polymer-based water-soluble resin film to the garment with the expansion jig through the first step, or swell part of the water-soluble resin (Non-heating) a second step of pressing and temporarily bonding;
A third step of transferring the clothes subjected to the second step to the lower platen;
A fourth step of relatively moving the upper platen on the garment subjected to the third step and performing heat pressing;
And fifth step of removing the water-soluble resin film from the garment subjected to the fourth step.
A method of forming a sublimation transfer image on clothing characterized in that: When the clothing is heat pressed in the fourth step, the expansion jig is not pressurized
The expansion jig is a hollow jig.
The internal size of the hollow structure is made larger than the size of the lower platen so that the expansion jig hangs down below the lower platen when the clothes with the expansion jig are placed on the lower platen, or
A spacer smaller in size than the inner size of the hollow structure and having a silicone rubber or felt on the upper surface and having a thickness larger than the thickness of the expanding jig is placed on the lower platen to place the clothes with the expanding jig Take any means of causing the expansion jig to hang downward from the spacer,
A method of forming a sublimation transfer image on a garment according to claim 1, characterized in that: The means for spreading and holding the clothes in the first step is
A means for inserting, spreading and holding a hollow extension jig consisting of a pipe in which a frame is connected in a loop from below the length direction of the clothes, or
Holding down the upper outer ring toward the lower inner ring with the spread clothes over the frame by using a hollow extension jig consisting of a pair of inner ring and outer ring, the clothes are held in a spread and held state Either means of
A method of forming a sublimation transfer image on a garment according to claim 1 or 2. At least one of the upper and lower portions in the height direction of the expansion jig is provided with a fitting portion for positioning on a heat press type transfer machine,
A method of forming a sublimation transfer image on a garment according to any one of claims 1 to 3, characterized in that: It has a structure in which the length can be adjusted in at least one of the width direction or the height direction of the extension jig according to the size of the clothes.
A method of forming a sublimation transfer image on a garment according to any one of claims 1 to 4, characterized in that: In the fifth step, when the water-soluble resin film is removed from the clothes, a hook portion restraining downward of the extension jig so as not to be lifted together with a force to pull up the fat film, or Provided on at least one side of the near side,
A method of forming a sublimation transfer image on a garment according to any one of claims 1 to 5, characterized in that: In the method of temporarily bonding the image-formed synthetic polymer-based water-soluble resin film to clothing in the second step, the double-sided pressure-sensitive adhesive tape in which the pressure-sensitive adhesive which enables temporary bonding is stuck around the front side of the water-soluble resin film. The water-soluble resin film is pressed from the back to the garment with the carrier sheet attached to the back side for temporary adhesion, and after the temporary adhesion and before the heat press, the carrier sheet is Removed from the back of the water-soluble resin film,
A method for forming a sublimation transfer image on any one of the clothes according to any one of claims 1 to 6, characterized in that: The synthetic polymer water-soluble resin film is a polyvinyl alcohol (PVA) resin film having a thickness of 60 μm or less, and the adhesion layer thickness of the pressure-sensitive adhesive is 50 μm or less.
A method for forming a sublimation transfer image on any one of the clothes according to any one of claims 1 to 7, characterized in that:   The carrier sheet adheres to the back side, and the double-sided adhesive tape is stuck with the release liner attached around the front side, and the release liner is a liner that has been treated on one side, and the side without release treatment is exposed. Water-soluble synthetic polymer film characterized by   10. The synthetic polymer water-soluble resin film according to claim 9, wherein the water-soluble resin is a PVA resin having a thickness of 60 μ or less.

Images