JP2007195636A - Sticker sheet with decoration and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sticker sheet with decoration of which an adhesive layer does not easily exfoliate from a release sheet by an improper handling and with good handling capability and its manufacturing method. <P>SOLUTION: A sticker sheet 1 with decoration is formed by making a second release sheet 4 with a bored through hole 4c overlie an adhesive layer 3 overlying a first release sheet 2, a bridge layer 5 overlie the adhesive layer inside the through hole 4c, and a first decoration layer 6a, which forms a main body layer 6, overlie the bridge layer 5 in a way that it strides the upper surface of the second release sheet. The main body layer 6 is raised together with the bridge layer 5 and the adhesive layer 3 is cut along the through hole 4c and released from the first release sheet 2 to achieve the separation of a sheet with decoration S from a sticker sheet 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a decorative seal sheet particularly suitable for nail art and a method for producing the same.

  A decorative seal sheet used for nail art or the like is already known. Such a seal sheet has a decorative layer with various decorations on the front surface side and a sticker with a decoration having an adhesive layer exhibiting adhesiveness at room temperature on the back surface so as to be peelable on the release sheet. For example, in the case of a seal sheet for nail art, the decorative seal is peeled off from the release sheet, and the adhesive layer is pressed against the surface of a natural nail or an artificial nail to thereby remove the seal. These nails can be worn and decorated.

  By the way, in such a conventional sticker with decoration, each sticker with decoration has an independent adhesive layer on the back surface, and is merely pasted on the release sheet by the adhesive layer. In addition, recently, there is a tendency to prefer a more three-dimensional and luxuriously decorated decoration. Therefore, if the seal sheet is carelessly curved, such as carelessly, the adhesive layer of each seal may be peeled off from the release sheet, which is not always sufficient for handling of the seal sheet. It could not be said that consideration was given.

  The present invention has been made to solve the above problems, and its technical problem is that the adhesive layer of the decorative seal is not easily peeled off from the release sheet by careless handling, and the handling property It is to provide a decorative seal sheet and a method for producing the same.

In order to solve the above-described problems, a decorative seal sheet according to the present invention includes a first release sheet having a release treatment applied to at least an upper surface thereof, and a room temperature laminated on the first release sheet in a peelable manner. And a second release sheet formed by forming a release treatment on only the upper surface and penetrating a through-hole penetrating vertically, and laminating the lower surface on the adhesive layer. And a crosslinked layer made of a resin laminated on the adhesive layer in the through hole of the second release sheet, and a predetermined pattern shape having a larger area than the crosslinked layer is formed on the crosslinked layer by the resin. A main body layer including a laminated decoration layer, and by lifting the main body layer together with the cross-linked layer, the adhesive layer of the portion where the cross-linked layer is laminated becomes a through hole of the second release sheet. And is peeled from the first release sheet. , The adhesive layer is characterized by being configured so that decorative with seal consisting of cross-linked layer and the body layer can be separated.
At this time, the resin forming the decorative layer may contain a heating foaming agent.

Moreover, the manufacturing method of the sealing sheet with a decoration which concerns on this invention is the 1st which peels and laminate | stacks the adhesive layer which exhibits adhesiveness at normal temperature on the 1st release sheet formed by the mold release process at least on the upper surface. And a second step of laminating a second release sheet having a through-hole penetrating vertically by performing a release treatment only on the upper surface, with the lower surface adhered to the adhesive layer; and A third step of laminating a cross-linked layer on the adhesive layer by filling a resin in the through hole of the second release sheet, and a screen made in a predetermined pattern shape having a larger area than the cross-linked layer A fourth step for forming a main body layer including a step of printing a resin on the cross-linked layer so as to straddle the second release sheet and laminating a decorative layer by screen printing used; It is characterized by having.
Here, the resin forming the decorative layer may contain a heating foaming agent, and the fourth step may include a step of foaming the decorative layer by heating.

  As described above, the decorative seal sheet according to the present invention lifts the main body layer including the decorative layer together with the crosslinked layer when in use, so that the adhesive layer in the portion where the crosslinked layer is laminated becomes the second release sheet. The decorative seal which is cut along the through-hole and peeled off from the first release sheet and is composed of the adhesive layer, the crosslinked layer and the main body layer can be separated from the seal sheet. Therefore, there is no possibility that the decorative seal is easily separated from the seal sheet due to careless handling, and the handleability is excellent. In addition, according to the method for manufacturing a decorative seal sheet according to the present invention, it is possible to easily manufacture such a decorative seal sheet having excellent handling properties.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 1, 2, 3, and 4A to 4F. Note that the drawings are schematic views for helping understanding, and the oblique lines indicating the cross section in the AA cross section are also omitted here for convenience.
In the figure, reference numeral 1 denotes an example of a decorative seal sheet according to the present invention, specifically a nail art seal sheet.

  The decorative seal sheet 1 includes a first release sheet 2 having a release treatment applied to at least an upper surface thereof, and an adhesive layer exhibiting adhesiveness at room temperature laminated on the first release sheet 2 in a peelable manner. 3 and a second release sheet 4 which is formed by performing a release treatment only on the upper surface and having a through hole 4c penetrating vertically, and is laminated with the lower surface bonded to the adhesive layer 3, A cross-linked layer 5 made of resin laminated on the adhesive layer 3 in the through hole 4c of the second release sheet 4 and a predetermined pattern shape having a larger area in plan view than the cross-linked layer 5 are formed by the resin. And the main body layer 6 including the first decorative layer 6 a laminated on the cross-linked layer 5. At this time, since the upper surface of the second release sheet 4 is subjected to a release treatment, a portion of the first decorative layer 6a located on the second release sheet 4 is not limited to the second release sheet 4. Even if it is in contact with the mold sheet 4, they are in a peeled state from each other without adhering to the second release sheet 4.

  In use, the pressure-sensitive adhesive layer 3 is cut along the peripheral edge of the through-hole 4c in the second release sheet 4 (that is, the peripheral edge of the cross-linking layer 5) by lifting the main body layer 6 together with the cross-linking layer 5. At the same time as the adhesive piece 3a is formed, the adhesive piece 3a is peeled off from the first release sheet 2 and consists of the main body layer 6 including the adhesive piece 3a, the crosslinked layer 5 and the first decorative layer 6a. The decorative seal S can be separated from the seal sheet 1. By sticking the decorative sticker S obtained as described above, that is, the nail art seal, to the surface of the natural nail or artificial nail of the fingertip with the adhesive piece 3a, the natural nail or artificial nail can be decorated. it can.

  Thus, on the decorative seal sheet 1, the adhesive piece 3 a of each decorative seal S is integrated with a portion of the adhesive layer 3 sandwiched between the first release sheet 2 and the second release sheet 4. Therefore, even if force is applied to the main body layer 6 or the sealing sheet 1 is bent, there is no possibility that the decorative seal S is easily separated from the sealing sheet 1.

More specifically, the first release sheet 2 is obtained by forming a first release layer 2b on the upper surface of the first sheet material 2a by performing a release process using silicon or the like.
The pressure-sensitive adhesive layer 3 is formed of a pressure-sensitive pressure-sensitive adhesive that exhibits adhesiveness at room temperature by volatilization of the solvent, or a double-sided adhesive tape that does not have a core material that also exhibits adhesiveness at room temperature, and the first release sheet 2 described above. Of the first release layer 2a, that is, on the first release sheet 2, the second release sheet 4 is provided on substantially the entire region where the second release sheet 4 is provided. The pressure-sensitive adhesive or double-sided tape that forms the adhesive layer 3 is desirably transparent and uncolored. Here, examples of the pressure-sensitive adhesive forming the adhesive layer 3 include an acrylic adhesive, a urethane adhesive, and a silicon adhesive.

Further, the second release sheet 4 is obtained by forming a second release layer 4b by performing a release process with silicon or the like only on the upper surface of the second sheet material 4a. 2 having substantially the same size as that of the region where the adhesive layer 3 is laminated, and having a plurality of penetrations having an appropriate shape (preferably substantially the same planar shape as that of the first decorative layer 6a). Holes 4c are formed at substantially equal intervals. The second release sheet 4 is laminated on the pressure-sensitive adhesive layer 3 by bonding the lower surface of the second sheet material 4a.
The cross-linked layer 5 is laminated on the adhesive layer 3 in the through hole 4c by filling the resin in the through hole 4c of the second release sheet 4, and the second release sheet 4 and They are formed with substantially the same thickness. The resin forming the crosslinked layer 3 is preferably transparent and uncolored.

  Here, as the resin material forming the cross-linked layer 5, for example, vinyl acetate resin, vinyl chloride resin, acrylic resin, ethylene resin, or a copolymer blend thereof, urethane resin, polyester resin, polypropylene resin, silicon Examples thereof include a resin or a copolymer blend thereof, a polyethylene resin, an ABS resin, an olefin resin, or a copolymer blend thereof.

  Furthermore, the main body layer 6 was laminated on the first decorative layer 6a and the first decorative layer 6a laminated on the cross-linked layer 5 so as to straddle the second release sheet 4. Similarly, the second decorative layer 6b is made of resin, and the second decorative layer 6b is smaller in area in plan view than the first decorative layer 6a and larger than the cross-linked layer 5. At this time, the planar shape of the second decorative layer 6b may be the same predetermined pattern as that of the first decorative layer 6a, or may be other patterns, such as the first decorative layer 6a and the cross-linked layer 5. The size with respect to is not particularly limited to the above. Further, the resin forming the first decorative layer 6a and the second decorative layer 6b may be transparent or opaque, and may be colored or not colored, but is colored. It is desirable. Furthermore, solid decorative bodies such as gold, silver, pearl, and beads may be mixed in the resin that forms the first decorative layer 6a and the second decorative layer 6b.

Here, as the resin material for forming the decoration layers 6a and 6b, that is, the main body layer 6, for example, vinyl acetate resin, vinyl chloride resin, acrylic resin, ethylene resin, or a copolymer blend thereof, urethane resin, polyester Examples thereof include a resin, a polypropylene resin, a silicon resin, or a copolymer blend thereof, a polyethylene resin, an ABS resin, an olefin resin, or a copolymer blend thereof.
In this embodiment, the main body layer 6 is formed by the two decorative layers 6a and 6b. However, the main body layer 6 is not limited to this, and is formed by one or more layers including at least one decorative layer. May be. Further, for example, the main body layer 6 may include a transparent and non-colored top layer that covers and protects substantially the entire decoration layers 6a and 6b.

A method for manufacturing the decorative seal sheet 1 will be described with reference to FIGS. 4 (a) to 4 (f).
First, the first release sheet 2 is prepared and mounted on a predetermined work surface B (see FIG. 4A), substantially the entire first release layer 2b of the first release sheet 2; That is, a pressure-sensitive adhesive that exhibits adhesiveness at room temperature is applied to substantially the entire area of the first release sheet 2 where the second release sheet 4 is provided, or both surfaces that also exhibit adhesiveness at room temperature. The adhesive layer 3 is laminated by sticking an adhesive tape (see FIG. 4B). Here, in applying the pressure-sensitive adhesive, various methods including a screen printing method can be employed.

Next, the second release sheet 4 having a through hole 4c is prepared, and the second release sheet 4 is bonded to the lower surface of the second sheet material 4a on the adhesive layer 3. Laminate (see FIG. 4C).
Next, by filling the paste-like resin into the through hole 4c of the second release sheet 4 so as to fill substantially the entire surface, the upper surface of the adhesive layer 3 is placed in the through hole 4c. 2 The cross-linked layer 5 that is substantially flush with the upper surface of the release sheet 4 is laminated (see FIG. 4D). Then, the crosslinked layer 5 is sufficiently dried.
Here, in forming the crosslinked layer 5 with a paste-like resin, a paste-like resin placed directly on the second release sheet 4 (that is, on the second release layer 4b) or a screen printing method is used. Various methods such as a method of rubbing into the through hole 4c using a spatula or the like can be employed. At this time, when the pressure-sensitive adhesive layer 3 is formed of a pressure-sensitive pressure-sensitive adhesive and the cross-linked layer 5 is formed by printing a resin by a screen printing method, the second mold release is thus formed on the pressure-sensitive adhesive layer 3. Since the sheet 4 is laminated, there is no need to particularly control the viscosity of the adhesive layer 3 or the resin for the purpose of preventing adhesion of the adhesive to the screen at the time of printing, and the resin is applied directly on the adhesive layer using the screen. Compared with the conventional method of printing and forming a crosslinked layer, the production of the seal sheet 1 can be made more efficient.

  Next, using a screen made in a predetermined pattern shape having an area larger than the upper surface of the cross-linked layer 5, a paste-like resin is placed on the cross-linked layer 5 by screen printing using the second release sheet 4. The first decorative layer 6a is stacked by printing so as to straddle the top (see FIG. 4E). Then, the first decorative layer 6a is sufficiently dried. At this time, since the second release layer 4b is laminated on the upper surface side of the second release sheet 4 and is subjected to the release treatment, the resin printed on the second release sheet 4 is removed. It does not interfere with the separation of the decorative seal S from the seal sheet 1 by adhering to the upper surface of the second release sheet 4.

Subsequently, using a screen made in a pattern shape whose area is smaller than the upper surface of the first decorative layer 6a and larger than the upper surface of the cross-linked layer 5, a paste is formed on the first decorative layer 6a by screen printing. The second decorative layer 6b is laminated by printing the resin (see FIG. 4F). Then, the second decorative layer 6b is sufficiently dried. At this time, the screen used for laminating the second decoration layer 6b may be made in the same predetermined pattern shape as the first decoration layer 6a, or may be made in another pattern shape. good. Further, the size of the design with respect to the first decorative layer 6a and the crosslinked layer 5 is not particularly limited to the above.
Thereafter, for example, a transparent and non-colored resin is printed on the decorative layers 6a and 6b by screen printing using a screen made in a pattern shape so as to cover substantially the entire decorative layers 6a and 6b. A top layer may be laminated.
As described above, the main body layer 6 having the first decorative layer 6a and the second decorative layer 6b is formed. As a result, the decorative seal sheet 1 can be obtained.
According to such a manufacturing method, in forming the pressure-sensitive adhesive layer 3 and the cross-linked layer 5, it is not always necessary to use screen printing. Therefore, the pressure-sensitive adhesive layer 3 and the cross-linked layer 5 are formed using the screen printing method. Thus, the decorative seal sheet 1 can be manufactured in a shorter time and at a lower cost than the conventional method.

FIG. 5 shows a modification of the embodiment according to the present invention. In the decorative seal sheet 1A according to this modification, a resin for forming the first decorative layer 7a and the second decorative layer 7b of the main body layer 7 contains a heating foaming agent, and FIG. 7b shows a state where 7b is heated and foamed. By doing so, the main body layer 7 of the decorative seal sheet 1A can be made more three-dimensional and luxurious.
In manufacturing such a seal sheet 1A, after the first decorative layer 7a and the second decorative layer 7b are laminated (after FIG. 4 (f)), the decorative layers 7a and 7b are heated. What is necessary is just to add the process to do. At that time, as described above, since the upper surface of the second release sheet 4 is subjected to the release treatment, the first decorative layer 7a printed on the second release sheet 4 is subjected to the heat treatment. Is not adhered to the upper surface of the second release sheet 4 and hinders foaming of the first decorative layer 7a.

  Although the present invention has been described in detail above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the spirit of the invention described in the claims of the present application. Is.

It is a schematic top view which shows one Example of the sealing sheet 1 with a decoration which concerns on this invention. It is the schematic which shows the AA cross section of FIG. It is a schematic fragmentary sectional view which shows the state which isolate | separated the sticker with decoration S from the sticker sheet with decoration of FIG. It is the schematic which shows the state which mounted | wore the 1st release sheet 2 on the work surface. It is the schematic which shows the state which laminated | stacked the adhesion layer 3 on the 1st release sheet. It is the schematic which shows the state which laminated | stacked the 2nd release sheet 4 on the adhesion layer 3. FIG. It is the schematic which shows the state which laminated | stacked the crosslinked layer 5 on the adhesion layer 3 in the through-hole 4c. 3 is a schematic view showing a state in which a first decorative layer 6a is laminated on a crosslinked layer 5. FIG. It is the schematic which shows the state which laminated | stacked the 2nd decoration layer 6b on the 1st decoration layer 6a. It is the schematic which shows 1 A of sticker sheets with a decoration concerning the modification of the said Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,1A Decoration sealing sheet 2 1st release sheet 3 Adhesive layer 4 2nd release sheet 4c Through-hole 5 Bridging layer 6,7 Main body layer 6a, 7a 1st decoration layer 6b, 7b 2nd decoration layer B Work surface S Sticker with decoration

Claims (4)

A first release sheet having a release treatment applied to at least the upper surface; an adhesive layer exhibiting adhesiveness at room temperature laminated releasably on the first release sheet; and a release treatment applied only to the upper surface. And a through-hole penetrating in the vertical direction is formed, and a second release sheet laminated with the lower surface bonded to the adhesive layer, and the adhesive layer in the through-hole of the second release sheet. A cross-linked layer made of a laminated resin, and a main body layer including a decorative layer formed on the cross-linked layer and formed in a predetermined pattern shape having a larger area than the cross-linked layer by the resin,
By lifting the main body layer together with the cross-linked layer, the adhesive layer where the cross-linked layer is laminated is cut along the through-hole of the second release sheet and peeled off from the first release sheet, The decorative seal composed of the adhesive layer, the cross-linked layer and the main body layer can be separated.
A decorative sealing sheet characterized by the above. The resin forming the decorative layer contains a heating foaming agent,
The decorative seal sheet according to claim 1. A first step of releasably laminating an adhesive layer exhibiting adhesiveness at room temperature on a first release sheet that has been subjected to a release treatment on at least the upper surface; A second step of laminating a second release sheet having a through-hole penetrating through the adhesive layer with its lower surface adhered, and filling the through-hole of the second release sheet with resin. By the third step of laminating the cross-linked layer on the adhesive layer and screen printing using a screen made in a predetermined pattern shape having a larger area than the cross-linked layer, the resin is added onto the cross-linked layer. A fourth step for forming a main body layer, including a step of printing so as to straddle over the second release sheet and laminating a decorative layer;
A method for producing a decorative seal sheet. The resin forming the decorative layer contains a heating foaming agent,
The fourth step includes a step of foaming the decorative layer by heating.
The method for producing a decorative seal sheet according to claim 3.

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