JP4232168B1 - Transfer seal and manufacturing method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transfer seal having no adhesiveness on the lower surface of an application film.
SOLUTION: A first step of forming an adhesive layer 2 only in a decoration-corresponding range of an upper surface of a support plate whose upper surface is formed of a fluorine layer or a silicon layer, and a graphic layer 3b is covered on the upper surface of the adhesive layer 2 A second step of applying, a third step of applying and drying a hardly adhesive resin so as to cover the upper surface of the graphic layer 3b, a fourth step of applying a transparent film 9 to the upper surface of the resin layer 8, and an adhesive 5th process which makes the laminated structure 7 which consists of the adhesive layer 2, the figure layer 3b, the resin layer 8, and the transparent film 9 isolate | separate from the upper surface of a support plate, and adheres the peeling sheet 1 to the lower surface of the adhesive layer 2 after that. It is manufactured through.
[Selection] Figure 1

Description

  The present invention relates to a transfer seal and a manufacturing method thereof.

  The transfer seal is obtained by covering a release paper with a figure having an adhesive in the lower layer with a weakly viscous protective film (application film). In use, together with the application film, the figure is peeled off from the release paper, attached to the transfer target, and then transferred by peeling off the application film.

  In the conventional transfer seal, when pasted on the transfer object, the application film adheres to the surface of the transfer object at a portion other than the figure due to the viscosity of the application film. There was a problem of roughening the surface of the paper when peeling off.

In order to cope with such a problem, Patent Documents 1, 2, and 3 disclose transfer stickers that do not cause damage to the paper surface, which is a transfer target, when a graphic is transferred.
JP-A-6-191197 JP 2003-231393 A JP-A-6-135122

  However, the transfer stickers disclosed in Patent Documents 1, 2, 3 and the like are poor in decorative changes because the surface of the figure that becomes a table when transferred is a flat surface. This is due to the fact that in the manufacturing process, the film is formed from the surface of the figure as a table.

  On the other hand, when the surface of the figure to be the front is formed last, when the completed figure is pulled up, it is pulled up with an application film having an adhesive on the lower layer. The application film with such an adhesive is used in order to have a re-peeling function for peeling off the application film when the transfer seal is used. However, in this case, the adhesive is present in the application film in places other than the graphic.

  The present invention was created under the above technical background, and the lower surface of the application film, which is bonded to the exposed surface of the figure, is pulled up to the application film side without using an adhesive. It is an object of the present invention to provide a transfer seal having a novel structure and to provide a manufacturing method capable of easily realizing such a transfer seal.

  The pressure-sensitive adhesive on the lower surface of the application film is a gel-like soft solid that is solidified, and maintains the fluidity of being wet to the adherend as it is. For this reason, when affixed to a transfer medium such as paper, wetting the fibers of the transfer medium and peeling it off causes the surface of the transfer medium to be rough.

  On the other hand, in the transfer seal according to the present invention, in the transfer seal in which a laminated structure having a predetermined shape is formed between the release sheet and the application film, the laminated structure is bonded to the release sheet. The adhesive film and the graphic layer of the predetermined shape covering the upper layer of the adhesive layer, and the application film is a liquid vinyl resin or urethane resin that does not adhere to or adhere to the laminated structure. A resin layer in which the three-dimensional shape is transferred to the lower surface by applying and curing the entire surface of the release sheet on which the body is formed, a transparent film having a uniform thickness adhered to the upper surface of the resin layer, and the resin And an adhesive layer for adhering between the layer and the transparent film.

The transfer seal manufacturing method according to the present invention is the transfer seal manufacturing method in which the laminated structure having a predetermined shape is formed between the release sheet and the application film, and the upper surface is formed of a fluorine layer or a silicon layer. Forming the laminated structure by forming the adhesive layer of the predetermined shape on the upper surface of the release sheet, forming a graphic layer in the range of the predetermined shape above the adhesive layer, and the graphic layer; Apply a liquid vinyl resin or urethane resin that does not adhere to or adhere to the entire surface of the release sheet on which the graphic layer is formed and dry it to form a resin layer, and then apply a transparent film on the upper surface of the resin layer via the adhesive layer And the step of forming the application film.

  According to the transfer seal according to the present invention, the flexible resin is adsorbed to the laminated structure with airtightness, and the application film does not have any adhesiveness. Therefore, when the laminated structure is transferred to the transferred body. In addition, adhesion between the application film and the transfer object is avoided.

  Further, according to the method for manufacturing a transfer seal according to the present invention, the application film has a liquid resin applied on the laminated structure, and the solvent is formed without eroding the graphic layer. It is possible to generate a suction force due to a negative pressure by transferring the shape. By this adsorption force, the figure can be peeled off from the release paper.

  Furthermore, since the film formation on the front surface of the laminated structure is performed later, a three-dimensional shape with unevenness can be obtained to give a change in decoration.

  Embodiments of the present invention will be described below with reference to the drawings. The transfer seal manufacturing method will be described in the order of steps. FIG. 1 is an explanatory view of the manufacturing method.

  In the first step, as shown in FIG. 1A, a support 1 (a top surface of which is used as a printing surface) 1 having a fluorine film or a silicon film formed by applying silicon is prepared. The upper surface of the support 1 is held flat.

  Next, the pressure-sensitive adhesive layer 2 is formed on the upper surface of the support 1 by screen printing. The screen mask has a pattern with a predetermined shape that is a decoration-corresponding range, and the pressure-sensitive adhesive is attached to the upper surface of the support 1 through the ink transmission part. The thickness is several tens to several hundreds of microns. The pressure-sensitive adhesive layer 2 printed in this way is cured by being heated at a temperature of about 60 ° C. for about 10 minutes. Fluorine and silicon on the surface of the support 1 contribute to facilitating peeling from the pressure-sensitive adhesive layer 2, and particularly silicon exhibits a repulsive action against the pressure-sensitive adhesive layer 2.

  In the second step, the graphic layer 3b is formed by screen printing, for example, so as to cover the entire top surface of the pressure-sensitive adhesive layer 2. The figure layer 3b can be formed of urethane resin, epoxy resin, ultraviolet curable resin, or the like. In this embodiment, a transparent urethane resin is used. At this time, a screen printing screen mask having an ink transmitting portion in the same form as in the first step is used. The thickness of the figure layer 3b is several to several hundred microns.

  The urethane resin of the figure layer 3b is cured by heating at a temperature of about 70 ° C. for about 40 minutes. The figure layer 3b may be colored or opaque by mixing a colorant into the paint. In addition, a resin that can be printed by an ink jet printer has been developed, and if such a resin is used, a film can be formed by printing the graphic layer 3b on the area of the adhesive layer 2 by the ink jet printer. It is.

  A 3rd process is a process added as needed of decoration. In this 3rd process, the decoration layer 4 is further added to 1 or a multilayer on the figure layer 3b. The thickness of one layer is several to several hundred microns.

  In this step, the decorating layer 4 made of decorating ink is formed only on the upper surface of the graphic layer 3b by, for example, screen printing. Here, the decorative layer 4 is an epoxy resin that can be thickened, and after being printed, it is heated and cured at a temperature of about 70 ° C. for several minutes to several tens of minutes. The decoration layer 4 is formed by printing or the like on the entire upper surface of the graphic layer 3b or a part of the upper surface, and the screen used at this time is a screen different from the first step screen printing. Yes, multiple screens may be printed on several screens. In addition, it is possible to sprinkle metal powder before curing to make it look like a lacquer or attach metal foil.

  When the decoration by the third step is performed, the graphic layer 3b covers the upper surface of the pressure-sensitive adhesive layer 2, and exhibits an effect of separating the decorative layer 4 to be printed later so as not to diffuse into the pressure-sensitive adhesive layer 2. To do.

  In this way, the laminated structure 7 (including the decorative layer 4 in some cases) composed of the pressure-sensitive adhesive layer 2 and the graphic layer 3b is formed.

  The next fourth and fifth steps are steps for forming the application film 6.

  In the fourth step, as shown in FIG. 1B, a liquid resin is applied to the entire surface of the support 1 including the laminated structure 7 to form a resin layer 8. The resin of the resin layer 8 may be a vinyl resin or a urethane resin that does not gel when cured and cures with flexibility.

  Moreover, the thing of the poor adhesiveness which does not adhere | attach to a figure layer is selected. For example, such a resin solvent is preferably an alcohol solvent that does not erode the graphic layer. In addition, when a decoration layer is laminated | stacked, what has the property of the difficulty-bonding property to a decoration layer is also selected. As a coating method, for example, a flow coater is used. The liquid resin applied in this manner covers the exposed upper surface a1 of the decorative layer 4 and the exposed upper surface b1 of the graphic layer 3b, and is present in a state where it has accumulated in the recessed portion c1 on the exposed upper surfaces a1 and b1. It will be a thing. The resin layer 8 is cured at room temperature. When cured, the upper surface of the resin layer 8 is flattened by reducing the degree of the irregularities regardless of the irregularities of the exposed upper surfaces a1 and b1. On the other hand, the one lower surface is formed by transferring a three-dimensional shape inverted to follow the shape of the recessed portion c1 on the exposed upper surfaces a1 and b1 to the lower surface. For this reason, the exposed upper surfaces a1 and b1 and the resin layer 8 are covered in an airtight manner, and a negative pressure portion is generated to generate an adsorbing force of an appropriate size. In spite of having no property, the exposed upper surfaces a1 and b1 are adhered in an airtight manner.

  Further, the pressure-sensitive adhesive layer 2 and the resin layer 8 are adhered with the thickness of the pressure-sensitive adhesive layer 2, and thereby, between the laminated structure 7 and the resin layer 8 over the entire outline of the laminated structure 7. Since it acts to seal, it contributes to maintaining airtightness.

  In the fifth step, as shown in FIG. 1C, a transparent film 9 having a uniform thickness is attached to the upper surface of the resin layer 8. The transparent film 9 is a film having an adhesive applied to the lower surface, and is adhered to the upper surface of the resin layer 8. At this time, since the upper surface of the resin layer 8 is relatively flat even when the exposed upper surface has irregularities, the transparent film 9 is stuck with a uniform adhesive force without any trouble. In this step, an adhesive may be directly applied to the resin layer 8 and the transparent film 9 may be attached.

  The application film 6 may be the resin layer 8 alone without using the transparent film 9. In this case, the resin layer 8 may be broken when the laminated structure 7 is peeled off from the support 1. Therefore, in order to avoid this, it is desirable to use the transparent film 9 for the purpose of reinforcing the resin layer 8 as in this embodiment. On the other hand, when only the resin layer 8 is used without using the transparent film 9, it is necessary to make the resin layer 8 sufficiently strong. As one method for solving this problem, a method of applying the resin layer 8 thickly can be used. In this case, the fifth step can be omitted. However, there is a drawback that the number of man-hours is increased by repeatedly performing dry coating several times.

  In this manner, an application film having airtightness with the laminated structure 7 is created by the fourth and fifth steps (FIG. 1D).

  FIG. 2 is a view showing a transfer seal of the finished product. The support 1 used in the above manufacturing process becomes a part of a finished product as it is as a release sheet of a transfer seal. In FIG. 2A, the adsorption strength between the application film 6 and the exposed upper surfaces a1 and b1 of both the decorative layer 4 and the graphic layer 3b and the adhesive strength between the pressure-sensitive adhesive layer 2 and the release sheet 1 are in this order small. In addition, each of these strengths is much smaller than the bond between the respective layers of the pressure-sensitive adhesive layer 2, the graphic layer 3 b, and the decorative layer 4.

  When the transfer seal is used, first, the release sheet 1 of the transfer seal is peeled downward (FIG. 2B). Thereby, the adsorption between the application film 6 and the laminated structure 7 is not separated, and only the release sheet 1 is used. Is peeled off. Next, as shown in FIG. 2C, the lower surface of the pressure-sensitive adhesive layer 2 is brought into contact with the transfer target 13 so that a pressing force is evenly applied to the upper surface of the application film 9. Thus, it is strongly bonded to the transfer target 13. Thereafter, a pulling force is applied to the application film 9, whereby the application film 6 is peeled from the laminated structure 7 in a state where the laminated structure 7 is adhered and held to the transfer target 13. At this time, the resin layer 8 is peeled off from the laminated structure 7 while the shape following the shape of the laminated structure 7 remains (FIG. 2D). As a result, the laminated structure 7 including the decorative portion such as the decorative layer 4 is completely adhered and transferred to the transfer target.

  Here, since the lower surface of the resin layer 8 does not have adhesiveness, even if a pressing force is applied to the upper surface of the application film 6 at a place other than the laminated structure 7, it does not adhere to the transferred body 13 at all. Therefore, even if the transfer object is paper or the like, the transfer object 13 is not damaged when the application film 6 is peeled off from the transfer object 13.

  In the production of the transfer seal, each of the pressure-sensitive adhesive layer 2 and the graphic layer 3b is formed by screen printing, so that a screen having the same transmission range of the decorative ink can be used. This is advantageous in that the figure layer 3b can be easily formed only on the upper surface of the plate 2.

  In addition, in the said Example, although the support body 1 was utilized as it was as the peeling sheet 1, it transferred from the support body 1 used at the time of manufacture to the peeling sheet 1 which prepared the laminated structure 7 and the application film 6 separately, and was a product. It is also good.

It is explanatory drawing of the manufacturing method of the said transfer seal. It is explanatory drawing of a transfer seal | sticker.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Release sheet 2 Adhesive layer 3b Graphic layer 4 Decorating layer 7 Laminated structure 8 Resin layer 9 Application film a1 Exposed upper surface b1 Exposed upper surface

Claims (5)

In the transfer seal in which a laminated structure of a predetermined shape is formed between the release sheet and the application film,
The laminated structure has the predetermined-shaped adhesive layer that adheres to the release sheet, and the graphic layer having the predetermined shape that covers the upper layer of the adhesive layer,
The three-dimensional shape is transferred to the lower surface of the application film by applying and curing a liquid vinyl resin or urethane resin that does not adhere or adhere to the laminated structure on the entire surface of the release sheet on which the laminated structure is formed. And a transparent film having a uniform thickness adhered to the upper surface of the resin layer, and an adhesive layer for bonding between the resin layer and the transparent film.   The transfer seal according to claim 1, wherein the laminated structure includes a decorative layer formed on an upper surface of the graphic layer. In the manufacturing method of the transfer seal in which a laminated structure of a predetermined shape is formed between the release sheet and the application film,
The pressure-sensitive adhesive layer having the predetermined shape is formed on the upper surface of a release sheet having an upper surface formed of a fluorine layer or a silicon layer, and a graphic layer is formed in the range of the predetermined shape on the upper layer of the pressure-sensitive adhesive layer. Forming a structure;
A liquid vinyl resin or urethane resin that does not adhere to or adhere to the graphic layer is applied to the entire surface of the release sheet on which the graphic layer is formed and dried to form a resin layer, and transparent on the upper surface of the resin layer through the adhesive layer A process for producing a transfer seal, comprising the step of forming the application film by sticking a film.   The step of forming the laminated structure further includes a step of forming a decorative layer made of a decorative ink on the upper surface of the graphic layer, and the resin layer obtained by curing the liquid vinyl resin or urethane resin is used as the decorative layer. The method for producing a transfer seal according to claim 3, wherein the transfer seal has an adsorptivity due to negative pressure.   The method for producing a transfer seal according to claim 3 or 4, wherein each of the pressure-sensitive adhesive layer and the graphic layer is formed by screen printing.

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