JP4404989B2 - Sheet material with seal having window pasting structure and method for manufacturing the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sheet material with a seal having a window pasting structure that can be used for various applications such as a book cover, a CD cover, a picture book, a magazine-attached page, and the like, and a method for manufacturing the sheet material.
[0002]
[Prior art]
2. Description of the Related Art In recent years, a sheet material with a seal (label) attached thereto is known as a sheet material used for picture books, pages with magazine appendices, trading cards, CD cover covers, and the like. This sheet material uses plain release paper (separator) with a normal label structure, but performs various printings on the surface of the substrate, and provides a release layer on the printed layer to be used as release paper. Structure. Such a sheet material can enjoy the exposed printing even after the label portion is peeled off and attached to various articles.
[0003]
[Problems to be solved by the invention]
However, since the sheet material having the above-described structure is obtained by partially half-cutting only the label portion, it is necessary to use paper for the base material, so that the use is limited. Moreover, after peeling off the label part, it was necessary to affix on various articles | goods immediately.
Therefore, the present inventors have an object of proposing a sealing material that can be used for various applications and that does not require the use of the removed seal portion immediately.
[0004]
[Means for Solving the Problems]
In view of the above, the present invention has been found after earnest studies, and in order from the bottom, a substrate on which printing has been performed, a release layer formed in a spot shape on the surface, an adhesive layer, and a thickness of 0.005 to 0 A 1 mm polyethylene terephthalate film, a printed layer, a release coating agent layer formed in a spot shape so as to be located immediately above the release layer, and a surface laminating film with an adhesive layer on the back surface. A window pasting structure characterized in that a part of the seal layer with the agent layer as the outermost surface can be peeled off from the back side of the surface laminating film, thereby forming a window pasting part. The present invention relates to a sheet material with a seal.
[0005]
The present invention also proposes a method for producing a sheet material with a seal having the above-mentioned window pasting structure, in which a release layer is formed in a spot shape on the surface of a printed substrate, and the entire surface of the sheet is adhered. Forming a layer, laminating a polyethylene terephthalate film having a thickness of 0.005 to 0.1 mm, printing on the surface with any of offset, gravure, flexo, and screen so that it is located immediately above the release layer After applying the release coating agent and performing partial punching at the boundary where the release coating agent layer is formed, the residual solvent is dried to 3 mg / m ² or less, or the residual solvent is removed first. After drying to 3 mg / m ² or less, laminating a surface laminating film that has been partially punched and further coated with an adhesive layer on the back side It is characterized by.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIG. 1 (a), a sheet material with a seal having a window pasting structure according to the present invention includes a printing paper 1, a release layer 2, an adhesive layer 3, and polyethylene terephthalate, which are printed substrates in order from the bottom. (PET) film 4, printing layer 5, release coating agent layer 6, and film 7 for surface lamination with adhesive layer 8 provided on the back surface, as shown in FIG. The portion A can be peeled off, whereby the window pasting portion B is formed. The peeled seal portion A can be attached to various articles by removing the separator made of the printing paper 1 and the release layer 2 as shown in FIG.
[0007]
The sheet material with a seal having the above-described configuration can be manufactured by the procedure shown in FIG.
(1) First, the release layer 2 is formed in a spot shape on the surface of the printed substrate (printing paper 1).
As the printed substrate (printing paper 1), various types of paper or film appropriately printed can be used. What is the material of the substrate and printing (ink type, technique, design, etc.) There is no limitation, and a sheet on which printing has been performed in advance may be used.
Further, the release layer 2 is only required to have a peel strength of about 1 to 50 g / m ² which is in close contact with the surface of the substrate and is formed on the adhesive layer 3. May be used, and the component is not particularly limited, and the method for forming a spot shape is not particularly limited.
[0008]
(2) Next, the adhesive layer 3 is formed on the entire surface of the sheet.
The adhesive layer 3 is not particularly limited in composition, and any natural resin or synthetic resin may be used. For example, an acrylic resin, a urethane resin, a vinyl acetate resin, an ethylene vinyl acetate resin, a rubber system, or the like is appropriately used. Can be used. This adhesive layer 3 has an adhesive strength (adhesive strength to a stainless steel plate) of 10 to 500 g / 25 mm, more preferably 20 to 250 g / 25 mm. By making the adhesive within this range, removability can be maintained and the attached article (adhered body) can be peeled off without being scratched. When this adhesive force is lower than 10 g / 25 mm, it tends to be peeled off from the adherend during use. For example, an adherend having a curved surface tends to float. If it is higher than 500 g / 25 mm, it may be difficult for the guardian or the like to peel off the adherend, so that the adherend may be scratched with a nail or the like. The method for forming such an adhesive layer is not particularly limited, and may be formed by any known technique and apparatus.
[0009]
(3) (4) A PET film 4 is laminated on the adhesive layer 3 formed in (2).
The PET film 4 has a thickness of 0.005 to 0.1 mm, preferably 0.015 to 0.08 mm (15 to 80 μm). If the thickness is less than 0.005 mm, the handleability is deteriorated, and if the thickness is more than 0.1 mm, it is likely to get into the nail and get injured.
[0010]
(5) Subsequently, the printing layer 5 and the release coating agent layer 6 are formed on the surface. Specifically, printing is performed by any one of offset, gravure, flexo, and screen to form the print layer 5, and the release coating agent 6 is applied so as to be positioned immediately above the release layer 2.
The printing layer 5 is not particularly limited to ink to be used, for example, UV ink or oil-based ink, and a drying method corresponding to the ink may be adopted.
As the release coating agent 6, the same release agent as that used to form the release layer 2 can be used, and the formation method can be similarly performed.
[0011]
(6) (7) Next, the boundary portion where the release coating agent layer 6 is formed is partially punched, and then dried by means such as forced drying so that the residual solvent is 3 mg / m ² or less. . Alternatively, partial punching may be performed after forced drying first.
In this partial punching process, the cutting blade (opening 9) reaches the lowermost printing paper 1 to form the seal portion A, but is processed so that the seal portion A does not fall off until the next laminating step.
On the other hand, if the residual solvent is higher than 3 mg / m ² , the window sticking part floats. If the residual solvent is 3 mg / m ² or less, the film is prevented from being stretched (wrinkled) and does not float. The relationship between the amount of the residual solvent and the float is as shown in FIG. 3, and it is clear that the occurrence of the float increases as the residual solvent amount increases.
[0012]
{Circle over (8)} {circle over (9)} Finally, a surface laminating film 7 having an adhesive layer 8 on the back side is laminated on the entire surface of the sheet.
As for the surface laminating film, the plastic sheet in the present invention is not particularly limited with respect to the material and presence / absence of surface treatment. For example, a film made of polyethylene terephthalate (PET) resin or vinyl chloride (PVC) resin may be used. In addition, by using a transparent film, a window pasting portion B that allows the inside to be seen through after the seal portion A is peeled off as shown in FIG. 1 is formed. In particular, when the tensile elastic modulus is 250 kg / mm ² or more, wrinkles do not occur in the window pasting portion B.
[0013]
The sheet material with a seal having the window pasting structure of the present invention thus manufactured is laminated after the surface laminating film is partially punched, so that it is not damaged at all, and even when it is used for a cover cover, etc. There will be no trouble. For example, since the conventional sheet material is partially punched only on the label part, even if a transparent film is used as the base material, the surface of the transparent film is damaged during the half punching process. This cover cover etc. could not be applied at all. In addition, since the peeled seal part has a separator on the back surface to protect the adhesive layer, it can be stored without being used immediately, so play like a trading card is possible. .
[0014]
In particular, in the production, since the residual solvent is dried so as to be 3 mg / m ² or less, the window pasting portion does not float and the commercial value is high.
[0015]
【Example】
[Example 1]
The sheet material was manufactured according to FIG.
(1) A stripping layer (peeling agent; “Hakuri OP Varnish M-1 XC” manufactured by Toyo Ink) on the surface of the printed art paper (“O Kanfuji A-0” made by Oji Paper) according to the pattern. 1.2 g / m ^{2 was} formed.
( ² ) An adhesive layer (adhesive; “BPS-569K” manufactured by Toyo Ink) was formed on the entire surface of the sheet at 12 g / m ² .
(3) (4) A PET film (Toyobo, thickness 38 μm) was laminated.
(5) Subsequently, offset UV printing was performed on the surface, and a release coating agent layer was formed to overlap the release layer using the release agent.
(6) (7) Then, after partial punching, forced drying was performed.
(8) (9) A surface laminating film (Toyobo PET film, thickness 16 μm) having an adhesive layer on the back surface was laminated on the entire surface of the sheet.
The obtained sheet material had a residual solvent of 2.7 mg / m ² , the window pasting part did not float, and the cover part of the book and the seal part were excellent in usability.
[0016]
[Comparative Example 1]
A sheet material was prepared in the same manner as in Example 1 except that forced drying was not performed. The obtained sheet material had a residual solvent of 12 mg / m ² , and floating was observed at the window pasting portion, which was unsuitable as a book cover.
[0017]
The present invention has been described based on the embodiments. However, the present invention is not limited to the above-described embodiments, and can be implemented in any way as long as the configuration described in the claims is not changed.
[0018]
【The invention's effect】
As described above, since the sheet material with a seal having the window pasting structure of the present invention is laminated after the surface laminating film is partially punched, it is not damaged at all. For example, this cover cover, CD cover cover, There is no problem even if it is used for picture books or pages with magazine appendices. In addition, since the peeled seal part has a separator on the back surface to protect the adhesive layer, it can be stored without being used immediately, so play like a trading card is possible. . Furthermore, when a transparent film is used as the PET film and the printing layer has transparency, both the printing layer and the printing on the printing paper can be seen simultaneously, and the visual design is high. Become.
[0019]
In particular, in the production, since the residual solvent is dried so as to be 3 mg / m ² or less, the window pasting portion does not float and the commercial value is high.
[Brief description of the drawings]
1A is a cross-sectional view schematically showing a basic configuration of a sheet material with a seal having a window pasting structure of the present invention, FIG. 1B is a cross-sectional view schematically showing a state where a seal portion is peeled off, and FIG. It is sectional drawing which shows the structure of a seal | sticker part.
FIG. 2 is a cross-sectional view schematically showing a method for producing a sheet material with a seal having a window pasting structure of the present invention.
FIG. 3 is a graph showing the relationship between the thickness of the phosphorescent paint thin film, the light emission amount of the sealing material, and the material cost.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Printing paper 2 Peeling layer 3 Adhesive layer 4 PET film 5 Printing layer 6 Mold release coating agent layer 7 Surface laminating film 8 Adhesive layer 9 Opening A Seal part B Window pasting part

Claims (4)

  In order from the bottom, the printed substrate, a release layer formed in a spot shape on the surface, an adhesive layer, a polyethylene terephthalate film having a thickness of 0.005 to 0.1 mm, a print layer, and a position immediately above the release layer It is made up of a coating layer for mold release formed in a spot shape on the surface, and a film for surface lamination with an adhesive layer on the back surface. A sheet material with a seal having a window pasting structure, wherein the sheet pasting portion can be peeled off from the back surface of the film, thereby forming a window pasting portion.   The sheet material with a seal having a window pasting structure according to claim 1, wherein the release agent and / or the release coating agent for forming the release layer is mainly composed of a silicone resin. A peeling layer is formed in a spot shape on the surface of the printed substrate, an adhesive layer is formed on the entire surface of the sheet, a polyethylene terephthalate film having a thickness of 0.005 to 0.1 mm is laminated, and the surface is offset. Printing was performed by gravure, flexo, or screen, a release coating agent was applied so as to be located immediately above the release layer, and a partial punching process was applied to the boundary portion where the release coating agent layer was formed. After that, the residual solvent was 3 mg / m ² Dry to the following level, or 3 mg / m of residual solvent first. ² A sheet material with a seal having a window pasting structure, characterized in that, after drying as described below, a partial punching process is performed, and a film for surface lamination having an adhesive layer on the back side is laminated on the entire sheet surface. Production method. 3 mg / m of residual solvent ² The manufacturing method of the sheet material with a seal | sticker which has a window pasting structure of Claim 3 which has a window pasting structure characterized by performing forced drying in order to make it the following.

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