JP2015182389A - Sheet laminate for hydraulic transfer, method of manufacturing the same, and hydraulic transfer method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheet laminate for hydraulic transfer, which can keep a manufacturing cost low.SOLUTION: The sheet laminate for hydraulic transfer comprises a sheet 2 for hydraulic transfer, which has a water-soluble support film 4 formed like a sheet and a printed pattern layer 5 having a pattern formed on one surface of the support film 4 by using water-soluble ink, and a support sheet 3 that is superposed by electrostatic adsorption in such a manner as to overlap the other surface on the opposite side of one surface of the sheet 2 for hydraulic transfer and that supports the sheet 2 for hydraulic transfer.

Description

  The present invention relates to a hydraulic transfer sheet laminate, a method for producing a hydraulic transfer sheet laminate, and a hydraulic transfer method.

  As a printing method for printing on the surface of a non-planar shaped body, a hydraulic transfer method has been widely known. In the water pressure transfer method, a water pressure transfer sheet on which a printing layer is formed is sufficiently swollen by floating on the water surface with the printing surface facing up, and then the transferred material is pressed into the water from above and pressed from above. The printing layer is transferred to the surface of the film. In recent years, not only water pressure transfer methods but also water pressure transfer sheets used for water pressure transfer have various configurations.

  For example, in Patent Document 1, a water-insoluble and water-swellable waterproof primer layer is formed on a water-soluble or water-swellable support sheet, and inkjet printing is performed using the water-soluble ink on the waterproof primer layer. A method is disclosed in which a transfer sheet (hydraulic transfer sheet) on which a printed pattern layer is formed is prepared, and an activator is applied on the printed pattern layer to perform hydraulic transfer. In the transfer sheet described in Patent Document 1, after the printed pattern layer is formed, the printed pattern layer is cured by heating the surface of the printed pattern layer so that water-soluble ink in the printed pattern layer does not flow out. It is configured.

  In addition, for the transfer sheet that has been conventionally performed, for a sheet-like transfer sheet, a printed image layer continuously printed on a roll-shaped support sheet formed as a continuous sheet, There are those in which a predetermined printed picture layer is printed on each transfer sheet.

Japanese Patent No. 3952748

  As described above, the transfer sheet described in Patent Document 1 forms a printed pattern layer, and then heats and cures the surface of the printed pattern layer. Therefore, in the transfer sheet described in Patent Document 1, it is necessary to use a thermosetting ink containing a polyol as the water-soluble ink for forming the printed pattern layer. The types were limited. In addition, in the case of the transfer sheet described in Patent Document 1, it is necessary to cure the water-soluble ink applied immediately after the ink-jet printing is performed, and the water-soluble ink is also applied to the printer that performs the ink-jet printing. It was necessary to incorporate a mechanism such as heating and thermosetting and then drying. Therefore, the printing machine used to create the transfer sheet described in Patent Document 1 has been limited to a large one having such a mechanism. Further, even in the case of manufacturing the transfer sheet described in Patent Document 1, the water-soluble ink applied after forming the printed pattern layer by applying the water-soluble ink is heat-cured and further dried. Since a process is required, the manufacturing cost tends to increase.

  Further, even when printing a printed pattern layer continuously on a roll-shaped support sheet, it is necessary to secure a space for accommodating the support sheet in the printing machine. It tends to increase in size. On the other hand, when printing a printed pattern layer on a sheet-like transfer sheet, the problem of the space for securing the support sheet can be solved, but positioning of the transfer sheet when printing the printed pattern layer is possible. Had to be done each time, and it tended to take time. That is, when printing a printed pattern layer by inkjet printing, it is necessary to keep the distance between the ink head that ejects ink and the surface of the transfer sheet constant. If the distance is not adjusted every time, the predetermined printing accuracy may not be maintained. In particular, in the case of a sheet-like transfer sheet, wrinkles are easier during printing, and work for ensuring the flatness of the transfer sheet is often required. As a result, more work costs are required.

  The hydraulic transfer sheet laminate according to the present invention has been made in order to solve the above-described problems, and an object thereof is to provide a hydraulic transfer sheet laminate that can keep manufacturing costs low. Moreover, the manufacturing method of the sheet | seat laminated body for hydraulic transfer which concerns on this invention aims at enabling it to manufacture the sheet | seat laminated body for hydraulic transfer efficiently at low cost. Furthermore, the water pressure transfer method according to the present invention aims to make it possible to more easily transfer the pattern pattern layer to the transfer target.

The sheet laminate for hydraulic transfer according to the present invention,
(1) A water-soluble support film formed in a sheet shape, a hydraulic transfer sheet having a printed pattern layer in which a pattern is formed on one surface of the support film using a water-soluble ink, and the hydraulic transfer A hydraulic transfer sheet laminate comprising: a support sheet that supports the hydraulic transfer sheet, and is laminated by electrostatic adsorption so that the other side opposite to the one side of the sheet is overlapped body,
(2) A receiving layer containing an adhesive is laminated at least on the surface of the printed pattern layer, and the printed pattern layer is impregnated with the water-soluble ink of the printed pattern layer by the adhesive of the receiving layer. The hydraulic transfer sheet laminate according to (1) above,
(3) The hydraulic transfer sheet laminate according to (2) above, wherein an activation layer having an activator is laminated on the surface of the receptor layer,
Is the gist.

Further, the method for producing a hydraulic transfer sheet laminate according to the present invention is as follows.
(4) A method for producing a hydraulic transfer sheet laminate used for hydraulic transfer, wherein the support film is placed so that the other surface opposite to the one surface on which the printed pattern layer is formed overlaps the support sheet. A method for producing a sheet laminate for hydraulic transfer, wherein the sheet is placed on the support sheet, and the support film and the support sheet are laminated by electrostatic adsorption,
(5) The hydraulic transfer according to (4) above, wherein a printed pattern layer is formed on one surface of the support film using a water-soluble ink, and a receiving layer containing an adhesive is formed on at least the printed pattern layer. Manufacturing method for sheet laminate,
(6) The method for producing a sheet laminate for hydraulic transfer according to the above (5), wherein an activation layer containing an activator is formed on the receiving layer,
Is the gist.

Furthermore, the hydraulic transfer method according to the present invention includes:
(7) A hydraulic transfer method for transferring a pattern to a surface of a transfer object using water pressure, wherein the support sheet is formed from the hydraulic transfer sheet laminate according to any one of (1) to (3). The hydraulic transfer sheet is characterized in that the hydraulic transfer sheet is floated so that the other surface opposite to the one surface of the support film on which the printed pattern layer on which the pattern is formed is laminated is in contact with the water surface. Method,
Is the gist.

  According to the hydraulic transfer sheet laminate of the present invention, the flatness of the hydraulic transfer sheet can be ensured, and the printed pattern layer can be formed more accurately. Further, according to the hydraulic transfer sheet laminate according to the present invention, it is possible to form a printed pattern layer using a printing machine which is a so-called general-purpose product, and the manufacturing cost of the hydraulic transfer sheet laminate can be greatly reduced. .

  In addition, according to the method for producing a hydraulic transfer sheet laminate according to the present invention, the hydraulic transfer sheet laminate can be produced with a small number of steps, so that the production efficiency can be improved and the production cost can be reduced. Can do.

  Furthermore, according to the water pressure transfer method of the present invention, a water pressure transfer sheet laminate printed by a commercially available ink jet printer can be directly water pressure transferred and transferred to a transfer target, so that it can be easily and quickly performed. Transcription is also possible.

It is sectional drawing showing the structure of the sheet | seat laminated body for hydraulic transfer which concerns on this invention. It is explanatory drawing for demonstrating the manufacturing method of the sheet | seat laminated body for hydraulic transfer which concerns on this invention. It is explanatory drawing for demonstrating the hydraulic transfer method by the sheet | seat laminated body for hydraulic transfer which concerns on this invention.

  The structure of the hydraulic transfer sheet laminate according to the present invention will be described with reference to FIG. FIG. 1 is a cross-sectional view showing the structure of a hydraulic transfer sheet laminate according to the present invention.

  The hydraulic transfer sheet laminate 1 is configured by laminating a hydraulic transfer sheet 2 and a support sheet 3. The hydraulic transfer sheet 2 includes a water-soluble support film 4 formed in a sheet shape and a printed pattern layer 5 in which a pattern is formed on one surface of the support film 4 using water-soluble ink. It is configured. The hydraulic transfer sheet 2 has a receiving layer 6 containing an adhesive layer laminated on at least the surface of the printed pattern layer 5. In other words, the hydraulic transfer sheet 2 contains an adhesive on the support film 4 or on the print pattern layer 5 at a place where the print pattern layer 5 is formed on the support film 4. A receiving layer 6 is laminated, and an activation layer 7 made of an activator is laminated on the receiving layer 6. In FIG. 1, the printed picture layer 5 is impregnated with water-soluble ink with the adhesive of the receiving layer 6. That is, in the printed picture layer 5, the water-soluble ink and the adhesive are mixed. Further, in the support film 4, at least the other surface opposite to the one surface on which the printed pattern layer 5 is laminated is formed to be a suction surface 4 a that is electrostatically attracted to the support sheet 3. .

  The support sheet 3 is a member formed to be a base of the hydraulic transfer sheet 2. The support sheet 3 may be a member formed in a sheet shape. Specific examples of the material used for the support sheet 3 include fresh pulp. Moreover, it is preferable that the thickness of the support sheet 3 is 80-90 micrometers.

  The support sheet 3 is adsorbed and laminated with the support film 4 constituting the hydraulic transfer sheet 2 by electrostatic adsorption. As will be described later, since the support film 4 is water-soluble, it easily absorbs moisture in the air and becomes sticky, and since the thickness is as thin as 35 to 45 μm, the support films 4 are stuck together and handled. Tends to be complicated, and it is difficult to cut into an arbitrary size. Further, since the support film 4 is more easily wrinkled when the printed pattern layer 5 is formed, it is difficult to ensure the flatness of the support film 4 with only the support film 4. Furthermore, if the support sheet 3 is simply laminated under the support film 4 and laminated, the support film 4 can be supported to some extent, but the flatness during the printing of the support film 4 is also ensured. It is difficult. Therefore, by adsorbing the support film 4 to the support sheet 3 by electrostatic adsorption and laminating them, the support film 3 can be made easy to handle with a strain and can be easily cut into an arbitrary size. In addition, the support film 4 is entirely adsorbed and laminated on the surface of the support sheet 3, and the flatness of the support film 4 can be ensured. The support sheet 3 is preferably made of a material that does not adhere to the printed pattern layer 5 or the receiving layer 6 on the other side opposite to the one side on which the support film 4 is laminated. With this configuration, when the hydraulic transfer sheet laminate 1 is transported or stored, the hydraulic transfer sheet laminate 1 can be stacked, and the space during transport and storage can be reduced. In addition, although the above-mentioned material includes, for example, a fluorine-coated material represented by Teflon, other materials may be used. Moreover, the above-mentioned material should just be used for at least the other surface, and the support sheet 3 may be made of the above-described material.

  The support film 4 may be a water-soluble film formed in a sheet shape. Specific materials used for the support film 4 include polyvinyl alcohol resin, dextrin, gelatin, glue, casein, shellac, gum arabic, starch, protein, polyacrylic acid amide, polyacrylic acid soda, polyvinyl methyl ether, methyl Examples thereof include a copolymer of vinyl ether and maleic anhydride, a copolymer of vinyl acetate and itaconic acid, polyvinyl pyrrolidone, acetyl cellulose, acetyl butyl cellulose, carboxymethyl cellulose, methyl cellulose, hydroxyl ethyl cellulose, and sodium alginate. Moreover, it is preferable that the thickness of the support body film 4 is 35-45 micrometers.

  The printed picture layer 5 is formed, for example, by performing ink jet printing. As an apparatus used for ink jet printing, an ink jet printer, an electronic computer for controlling the printing machine and receiving image information processing, a scanner device for reading a document image and performing AD conversion, a storage device for storing image information, an image display device, etc. Consists of Using these devices, the image data is taken in, the customer's request is taken into the image, the image is displayed on an image display device such as a CRT, and the color is adjusted on the desktop, the image is corrected (removal of unnecessary portions, etc.) ), The combination with other image data, the image breeding, the endless image processing, and the like are performed, and this is directly printed on the surface of the support sheet to form the printed picture layer 5.

  The pattern of the printed pattern layer 5 formed by inkjet printing is not particularly limited, and is formed in an arbitrary shape such as a grain pattern, a stone pattern, a cloth pattern, a character, a figure, a symbol, and a pattern. The printed pattern layer 5 may be formed on the entire surface of the support sheet 2 so as to be solid or partially formed. The thickness of the printed pattern layer 5 is usually formed to about 1 to 10 μm.

Inkjet printing is a method of printing by ejecting ink in the form of particles (droplets) from a thin nozzle onto a substrate to be printed. Depending on the type of ink ejection method and ink particle control method, the charge control type, There are methods such as Hertz type, electric field control type, and pressure control type (on-demand type). Hereinafter, these methods will be described.
(I) A pressure of ² to 3 kg / cm ² is applied to the charge control type ink, the piezoelectric element is operated at a frequency of 50 to 100 kHz or more, and the ink is ejected and formed into particles. Shake up and down or left and right to attach ink at an arbitrary position.
(Ii) Ink is ejected in a spray form from the nozzle as in the Hertz charge control type. At that time, by increasing or decreasing the voltage of the control electrode, the spread of the spray-like jet ink changes, and the ink density passing through the aperture having a certain size differs and reaches the printing medium.
(Iii) a positively charged nozzle electrode provided on a nozzle for ejecting electric field control type ink, a negatively charged platen electrode provided on a platen that supports the printing medium and faces the nozzle, and the nozzle electrode and the platen electrode And a control electrode such as an open / close electrode, a horizontal deflection electrode, and a vertical deflection electrode. In this method, the ink is weakly pressurized, a high voltage is applied between the acceleration electrode immediately before the nozzle and the nozzle and between the counter platen electrodes, and the ink is drawn out from the nozzle by an electric field. The ink droplet has a constant charge, and forms an image such as a character by ON / OFF by a signal voltage and deflection by a deflection plate.
(Iv) This is a method in which a vibration pressure according to a recording signal is applied to a pressure control type ink portion by a piezoelectric element, and ink particles are ejected by the pressure change. There is also a thing (bubble jet (registered trademark) type) using an ink jetting method using generation of bubbles by a heating method according to a signal in a nozzle.

  The ink used for inkjet printing can be an organic solvent dilution type or a water-soluble ink. In the present invention, it is preferable to use a water-soluble ink for the purpose of reducing the cost during inkjet printing. Water-soluble inks are used in general-purpose inkjet printers that are generally commercially available, and many types are in circulation. Therefore, by using water-soluble ink for ink jet printing, the printing cost can be greatly reduced, and the printing operation can be made more economical.

  Water-soluble inks used for inkjet printing include vehicles such as water-soluble or water-swellable resins typified by cellulose acetate butyrate resin, colorants such as dyes and pigments, dispersants, plastics as necessary. An agent, extender, etc. are added, and a composition diluted with water to an appropriate viscosity is used. As the colorant, for example, organic pigments such as isoindolinone yellow, quinacridone red, phthalocyanine blue, and aniline black, and inorganic pigments such as chrome, petal, ultramarine, and black are used. As the vehicle such as a water-soluble or water-swellable resin, those exemplified as the material for the above-described support sheet can be used.

  In addition, in this Embodiment, although demonstrated using the example which forms the printing pattern layer 5 by inkjet printing, you may form the printing pattern layer 5 by printing methods other than inkjet printing. For example, a printing method using a laser printer may be used, or another printing method may be used.

  The receiving layer 6 is a layer containing an adhesive for adhering the water pressure transfer sheet 2 to the transfer body 21 when the water pressure transfer sheet 2 is transferred to the transfer body 21 described later. The receiving layer 6 is even formed on the support film 4 or the printed pattern layer 5 and then cured. Specific examples of the material used for the receiving layer 6 include vinyl chloride-vinyl acetate copolymers. When this vinyl chloride-vinyl acetate copolymer is used, it is a copolymer containing at least 70 mol of vinyl chloride units and vinyl acetate units, and the vinyl chloride units (mol%) are vinyl acetate units (moles). %) And an average degree of polymerization of 200 to 1100 is preferable from the viewpoint of being soluble in water. Moreover, it is preferable that the thickness of the receiving layer 6 is 32-40 micrometers.

  The activation layer 7 is a layer for re-dissolving the printed pattern layer 5 and the receiving layer 6 and is formed by being applied on the receiving layer 6. Specific materials used for the activation layer 7 include vinyl halide polymers such as polyvinyl chloride and polyvinylidene chloride, polymers obtained from polystyrene and styrene derivatives, and the like. Moreover, it is preferable that the thickness of the activation layer 7 is 20-30 micrometers.

  Next, the manufacturing method of the hydraulic transfer sheet laminate 1 according to the present invention will be described with reference to FIG. FIG. 2 is an explanatory diagram for explaining a method of manufacturing the hydraulic transfer sheet laminate 1. First, as shown in FIG. 2A, the support film 4 is placed on the support sheet 3. At this time, the support film 4 is placed while the suction surface formed on the other surface opposite to the surface on which the printed pattern layer 5 is formed later is opposed to the surface of the support sheet 3.

  Next, as shown in FIG. 2 (b), the electrode 11 is brought close to the upper side of the support film 4. When the electrode 11 is brought close to the support film 4, the support film 4 and the support sheet 3 are adsorbed and stacked by electrostatic adsorption. As described above, when the support sheet 3 and the support film 4 are laminated by electrostatic adsorption, the flatness of the support film 4 is ensured by the support sheet 3, and the interval between the print head of the printing apparatus is kept constant even during printing. It can be maintained, and the support film 4 can be prevented from wrinkling at the time of printing, so that a clear printed picture layer 5 can be reliably formed. In addition, it is preferable that the voltage currently applied to the electrode 11 at this time is 80-100V, and it is preferable that the space | interval of the electrode 11 and the support body film 4 is 30-50 mm.

  Next, as shown in FIG. 2 (c), the laminate of the support sheet 3 and the support film 4 is installed in a printing device or the like, and the printed pattern layer 5 is placed on the upper surface as one surface of the support film 4. It is formed by ink jet printing. This printed picture layer 5 may be formed entirely or partially on the upper surface of the support film 4.

  Next, as shown in FIG. 2D, an adhesive is applied on the support film 4 or the printed pattern layer 5 to form the receiving layer 6. At this time, printing ink and the adhesive of the receiving layer 6 are mixed in the printed picture layer 5, and then the receiving layer 64 is cured. Therefore, the printing ink of the printed picture layer 5 remains without the cured receiving layer 6 flowing out of the printed picture layer 5 due to the presence of the printed picture layer 5.

  Next, as shown in FIG. 2E, an activation layer 7 is formed by applying an activator on the receiving layer 64. In addition, since the activation layer 7 is for activating and re-dissolving the adhesive of the receiving layer 6, it may be applied and formed immediately before the hydraulic transfer.

  In the manufacturing method of the hydraulic transfer sheet laminate 1 according to the present invention, the hydraulic transfer sheet laminate 1 is formed through such steps, and therefore, the steps for forming the hydraulic transfer sheet laminate 1 compared to the conventional method are as follows. It can be greatly reduced, and the production efficiency can be greatly improved. Accordingly, the manufacturing cost of the hydraulic transfer sheet laminate 1 can be greatly reduced. Further, since the hydraulic transfer sheet laminate 1 has a support sheet 3 laminated on the support film 4 and can be given a strain, the hydraulic transfer sheet 2 may be broken or damaged during transportation or transportation. Thus, it is possible to prevent the hydraulic transfer sheet 2 from being lost.

  Next, the water pressure transfer method according to the present invention will be described with reference to FIG. FIG. 3 is an explanatory diagram for explaining the water pressure transfer method. The hydraulic transfer method in the present invention is performed using the hydraulic transfer sheet laminate 1 manufactured through the above-described steps.

  In performing the hydraulic transfer, first, as shown in FIG. 3A, the support sheet 3 is peeled off from the hydraulic transfer sheet laminate 1. As a method for peeling off the support sheet 3, for example, it can be performed by applying a voltage for static elimination to the hydraulic transfer sheet laminate 1, but is not limited thereto, and may be peeled off by another method. When the support sheet 3 is peeled in this manner, the adsorption surface 4a of the support film 4 in the hydraulic transfer sheet 2 is exposed as the lowermost surface.

  Next, as shown in FIG. 3B, the hydraulic transfer sheet 2 is placed on one side of the support film 4 on which the adsorption surface 4a of the support film 4, that is, the printed pattern layer 5 on which the pattern is formed, is laminated. The water pressure transfer sheet 2 is floated on the water surface W so that the other surface opposite to the surface faces the water surface W and the activation layer 7 faces upward. At this time, in the hydraulic transfer sheet 2, the activator of the activation layer 7 applied in advance activates the adhesive of the receptor layer 6 and is dissolved again. In this case, after applying the activator on the receiving layer 6 in advance and activating the receiving layer 6, the hydraulic transfer sheet 2 may be floated on the water surface W, or the hydraulic transfer sheet 2 may be placed on the water surface. After suspending on W, an activator may be applied on the receiving layer 6 to be activated. “Activating the receptor layer 6 of the hydraulic transfer sheet 2” means that a part of the receptor layer 6 is redissolved or swells and is easily attached to the transfer target 21 to be described later. It means to do.

  When the water pressure transfer sheet 2 is floated on the water surface W, the support film 4 is dissolved in contact with water. The support film 4 is completely dissolved depending on the material, and there are a case where the printed pattern layer 5 exists on the water surface W and a case where a part of the support film 4 is dissolved and a part remains. is there. When the support film 4 is completely dissolved, the printed pattern layer 5 is in close contact with the transfer target 21 via the receiving layer 6.

  When the printed pattern layer 5 is sufficiently adhered to the transfer target 21 via the receiving layer 6, if the support film 4 remains, the support film 4 is removed by shower washing with water. Remove. As a result, the support film 4 attached to the surface of the transfer target 21 can be completely removed, and dirt and the like generated during transfer can be removed. When the transferred object 21 is sufficiently dried to evaporate the water, the printed pattern layer 5 is transferred to the surface of the transferred object 21 and a product to which the printed pattern is applied can be obtained.

  Various products can be used as the transfer target 21. For example, resin moldings such as ABS resin, polystyrene, polyolefin resin, polyvinyl chloride and phenol resin, metal moldings such as iron, aluminum and copper, wood moldings, glass, ceramics, and other various inorganic moldings In addition, it can be used for those having a predetermined three-dimensional shape.

  Thus, according to the hydraulic transfer method according to the present invention, the pattern of the printed pattern layer 5 formed on the hydraulic transfer sheet 2 can be reliably transferred to the transfer target 21. In particular, in the printed pattern layer 5 of the hydraulic transfer sheet 2, since the water-soluble ink constituting the pattern and the adhesive of the receiving layer 6 are mixed, the support film 4 is dissolved. Even if the printed pattern layer 5 is exposed on the water surface W, the water-soluble ink can remain in place without flowing out into the water. Therefore, since the water pressure transfer sheet laminate 12 printed by a commercially available ink jet printer can be transferred to the transfer target 21 by water pressure transfer as it is, the transfer can be performed easily and quickly. Further, according to the hydraulic transfer method according to the present invention, the support film 3 is peeled off and transferred immediately before the pattern of the printed pattern layer 5 is transferred to the transfer target 21, so that the support film 4 starts to dissolve by moisture. In addition, it is possible to prevent dust and particles (fine particles) from adhering to the support film 4, thereby preventing the dust and particles from being mixed into the water W. Therefore, according to the water pressure transfer method of the present invention, the quality when the pattern is transferred to the transfer target 21 can be improved.

  In addition, what was described above is merely an example of the hydraulic transfer sheet laminate 1, the manufacturing method of the hydraulic transfer sheet laminate 1, and the hydraulic transfer method according to the present invention, and is not limited thereto. Any change may be made without departing from the spirit of the present invention.

Example 1
[Manufacture of hydraulic transfer sheet laminate]
A long sheet of a sheet obtained by winding a sheet having a width of 150 cm in a roll shape was pulled out, and the long sheet was cut into a length of 297 cm and a width of 210 cm to form a support sheet. Further, a long sheet of a water-soluble sheet obtained by winding a sheet having a width of 150 cm in a roll shape was pulled out, and the long sheet was cut into a length of 297 cm and a width of 210 cm to form a support film. . Next, a support film was placed on these support sheets, and then an electrode was brought close to the support film, and the support sheet and the support film were adhered and laminated by electrostatic adsorption. At this time, the distance from the support film to the electrode was 50 mm, and the voltage applied to the electrode was 100V.

  Next, a laminate of the support sheet and the support film is put into a paper feed port of an ink jet printer (model number: PX-7550 manufactured by Seiko Epson Corporation), and a predetermined pattern is formed on the support film by the ink jet printer. A printed pattern layer was formed. The water-soluble ink used for the printed pattern layer at this time is a pigment type manufactured by Seiko Epson Corporation, photo black (model number: ICBK39A), matte black (model number: ICMB41A), gray (model number: ICGY39A), light gray. (Model number: ICLGY39A), yellow (model number: ICY39A), cyan (model number: ICC39A), light cyan (model number: ICLC39A), vivid magenta (model number: ICVM39A), vivid light magenta (model number: ICVLM39A) .

  Next, it is a copolymer containing 70 mol or more of vinyl chloride units and vinyl acetate units in total, the vinyl chloride units are 50 (mol%), the vinyl acetate units are 50 (mol%), and the average degree of polymerization is An adhesive composed of a vinyl chloride-vinyl acetate copolymer having a thickness of 600 was applied to the surface of the support film and the surface of the printed pattern layer. The applied adhesive was dried and cured to form a receiving layer having a thickness of 22.9 μm. Further, an activation layer made of a vinyl halide polymer such as polyvinyl chloride or polyvinylidene chloride, or a polymer obtained from polystyrene and a styrene derivative is applied on the receiving layer to form an activation layer having a thickness of 20 μm. Thus, a sheet laminate for hydraulic transfer was obtained. In Example 1, three sheets of a hydraulic transfer sheet laminate obtained by such a procedure were prepared.

[Transfer of printed pattern to transfer target by hydraulic transfer]
A voltage of 100 V was applied to the hydraulic transfer sheet laminate described above to remove static electricity between the support sheet and the support film that were electrostatically adsorbed, and the support sheet was removed. Next, the water pressure transfer sheet was swollen by floating on the water surface such that the support film of the water pressure transfer sheet faces the water surface on the water surface at a water temperature of 30 ° C. After 1 minute, a sample formed of plastic having a predetermined curvature as a transfer object was pushed in from above, and spread and adhered to the surface of the transfer object.

  Next, the transfer object having the water pressure transfer sheet adhered to the surface was pulled out of the water and washed with water at 10 ° C. for 30 minutes to test whether the pattern was transferred. The results of this test are shown in Table 1. Table 1 is a table showing the relationship between the thickness of the receiving layer and the pattern transfer state with respect to the transfer target. In Table 1, if all the images of the hydraulic transfer sheet laminate have been transferred to the transfer target, and the pattern does not peel off on all of the transfer targets even when rubbed with a finger, it is marked ◎. After transferring the pattern of all the hydraulic transfer sheet laminates to the transfer target, some peeling occurred when it was rubbed with a finger. . In addition, although the design of the hydraulic transfer sheet laminate is transferred to the transfer target, more than half of the transfer target may be peeled off when it is rubbed with a finger or the pattern is not stretched sufficiently. △ if the transfer has not been transferred to the specified location on the transfer body, and if the image has not been transferred to the transfer object, or the image has been peeled off without being rubbed with a finger Is x.

  As a result, in Example 1, peeling of the pattern or the like occurred on all the transferred objects. Therefore, in Example 1, the transfer state was x.

(Example 2)
In Example 2, three points of hydraulic transfer sheet laminates were prepared in the same procedure as in Example 1, and the pattern was transferred to the transfer target. In Example 2, the thickness of the receiving layer was 27.4 μm. In Example 2, the pattern was transferred to two transferred objects among the three transferred objects, but the pattern peeled off when rubbed with a finger thereafter, or a predetermined portion of the transferred object The design was not transcribed to. Therefore, in Example 2, the transfer state is Δ.

(Example 3)
In Example 3, three points of hydraulic transfer sheet laminates were prepared in the same procedure as in Example 1, and the pattern was transferred to the transfer target. In Example 3, the thickness of the receiving layer was 32 μm. In Example 3, the pattern was transferred to all three transferred objects, and the pattern was transferred although slight peeling or the like occurred after rubbing with a finger. Therefore, in Example 3, the transfer state was set to ◯.

Example 4
In Example 4, three points of a hydraulic pressure transfer sheet laminate were prepared in the same procedure as in Example 1, and the pattern was transferred to the transfer target. In Example 4, the thickness of the receiving layer was 36.6 μm. In Example 4, the pattern was transferred to all three transferred objects, and even if the pattern was rubbed with a finger after that, the pattern was not peeled off on all transferred objects. Therefore, in Example 4, the transfer state was ◎.

(Example 5)
In Example 5, three points of hydraulic transfer sheet laminates were prepared in the same procedure as in Example 1, and the pattern was transferred to the transfer target. In Example 5, the thickness of the receiving layer was 41.1 μm. In Example 5, the pattern was transferred to all of the three transferred objects. After that, when the finger was rubbed, a slight peeling or the like occurred on the transferred object. The transcription was done. Therefore, in Example 5, the transfer state was set to ◯.

(Example 6)
In Example 6, three points of hydraulic transfer sheet laminates were prepared in the same procedure as in Example 1, and the pattern was transferred to the transfer target. In Example 6, the thickness of the receiving layer was 45.7 μm. In Example 6, the pattern was transferred to two transferred objects among the three transferred objects. After that, the pattern was peeled off when rubbed with a finger. Further, at another point, the pattern was not transferred to a predetermined portion of the transfer object. Therefore, in Example 6, the transfer state is Δ.

(Example 7)
In Example 7, three points of a hydraulic transfer sheet laminate were prepared in the same procedure as in Example 1, and the pattern was transferred to the transfer target. In Example 7, the thickness of the receiving layer was 50.3 μm. In Example 7, the pattern was not transferred to the three transferred objects, or the pattern was peeled off although transferred. Therefore, in Example 7, the transfer state was x.

  As described above, from the results of Examples 1 to 7, when the thickness of the receiving layer is 32.0 μm to 41.1 μm, the pattern is surely transferred to the transfer target, and peeling after the transfer hardly occurs. Therefore, it was found that 32.0 μm to 40.0 μm is appropriate as the thickness of the receiving layer. This is because if the thickness of the receiving layer is too thin, sufficient adhesive strength cannot be secured, and peeling tends to occur after the transfer of the pattern. If the thickness of the receiving layer is too thick, the adhesive of the receiving layer is sufficient during transfer. Since the transfer is performed in a state where the adhesive is not cured and impregnated with moisture, it seems that peeling easily occurs.

DESCRIPTION OF SYMBOLS 1 Hydraulic transfer sheet laminated body 2 Hydraulic transfer sheet 3 Support sheet 4 Support film 5 Print pattern layer 6 Receptive layer 7 Activation layer 11 Electrode

Claims (7)

A water-soluble support film formed in a sheet shape, and a hydraulic transfer sheet having a printed pattern layer in which a pattern is formed using water-soluble ink on one surface of the support film;
The hydraulic transfer sheet comprising: a support sheet that is stacked by electrostatic adsorption so as to overlap with the other surface opposite to the one surface of the hydraulic transfer sheet, and supports the hydraulic transfer sheet. Sheet laminate.   A receiving layer containing an adhesive is laminated on at least the surface of the printed pattern layer, and the printed pattern layer is impregnated with the water-soluble ink of the printed pattern layer by the adhesive of the receiving layer. Item 2. The hydraulic transfer sheet laminate according to Item 1.   The sheet laminate for hydraulic transfer according to claim 2, wherein an activation layer having an activator is laminated on the surface of the receiving layer. A method of manufacturing a hydraulic transfer sheet laminate used for hydraulic transfer,
A support film is placed on the support sheet such that the other surface opposite to the one surface on which the printed pattern layer is formed overlaps the support sheet, and the support film and the support sheet are A method for producing a hydraulic transfer sheet laminate, characterized by laminating by electrostatic adsorption. Form a printed pattern layer using water-soluble ink on one side of the support film,
The manufacturing method of the sheet | seat laminated body for hydraulic transfer of Claim 4 which forms the receiving layer containing an adhesive agent at least on the said printing pattern layer.   The manufacturing method of the sheet | seat laminated body for hydraulic transfer of Claim 5 which formed the activation layer containing an activator on a receiving layer. A water pressure transfer method for transferring a pattern to a surface of a transfer object using water pressure,
Peel off the support sheet from the hydraulic transfer sheet laminate according to any one of claims 1 to 3,
A hydraulic transfer method, wherein a hydraulic transfer sheet is floated so that the other surface opposite to one surface of a support film on which a printed pattern layer on which a pattern is formed is laminated is in contact with the water surface.

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