JP2000330471A - Sheet material with seal having window labelling structure and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheet material with a seal having a window labelling structure which can be used for various purposes such as a book cover, CD cover, pages with appendix of a picture book or magazine, and to provide a method for its production. SOLUTION: The sheet material consists of, from the lower side, a printed base material 1, a release layer 2 formed in spots on the surface of the base material, an adhesive layer 3, a polyethylene terephthalate film 4 having 0.005 to 0.1 mm thickness, a printing layer 5, a release coating agent layer 6 formed in spots on the position just above the release layer 2, and a film 7 for surface lamination having an adhesive layer 8 on its rear face. In this material, a sealed portion A subjected to partial punching 9 with the release coating layer 6 as the uppermost face can be released from the rear face of the film 7 for surface lamination, and thereby, a window labelling portion B is formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealed sheet material having a window-attached structure which can be used for various purposes such as a book cover cover, a CD cover cover, a picture book or a page with an appendix of a magazine, and the production thereof. About the method.

[0002]

2. Description of the Related Art In recent years, sheet materials to which stickers (labels) are attached have been known as sheet materials used for picture books and magazines with appendix pages, trading cards, CD cover covers, and the like. This sheet material uses a plain release paper (separator) with a normal label structure, but performs various printings on the surface of the base material and provides a release layer on the printed layer to use as a release paper. Structure. Such a sheet material can enjoy exposed printing even after the label portion is peeled off and attached to various articles.

[0003]

However, in the sheet material having the above structure, only the label portion is partially punched out, so that it is necessary to use paper as the base material. After the label portion was peeled off, it was necessary to immediately attach it to various articles. Therefore, the present inventors have an object to propose a sealing material which can be used for various kinds of applications, and in which the removed seal portion does not need to be used immediately.

[0004]

Means for Solving the Problems The present invention has been found after intensive studies in view of the above, and in order from the bottom, a printed substrate, a release layer formed in a spot shape on the surface thereof, An adhesive layer, a polyethylene terephthalate film having a thickness of 0.005 to 0.1 mm, a printing layer, a release coating layer formed in a spot shape so as to be located immediately above the release layer, and a surface laminate having an adhesive layer on the back surface Made from a film for release, and a seal portion subjected to partial punching with the coating agent layer for release as the outermost surface can be peeled off from the back surface of the film for surface lamination, thereby forming a window application portion. The present invention relates to a sheet material with a seal having a window-attached structure.

The present invention also proposes a method for producing a sheet material with a seal having the above-mentioned window-attached structure, wherein a release layer is formed in a spot shape on the surface of a printed substrate, and the sheet is formed. A pressure-sensitive adhesive layer is formed on the entire surface, a polyethylene terephthalate film having a thickness of 0.005 to 0.1 mm is further laminated, and printing is performed on the surface by any of offset, gravure, flexo, and screen. The coating agent for release is applied so that the boundary portion on which the coating layer for release agent is formed is partially punched, and then the residual solvent is added in an amount of 3 mg / mg.
m ² or less.
It is characterized in that after drying to a mg / m ² or less, a partial laminating process is performed, and a film for surface lamination having an adhesive layer on the back surface is laminated on the entire surface of the sheet.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1 (a), a sheet material with a seal having a window-attached structure according to the present invention comprises, in order from the bottom, a printing paper 1 and a release layer 2 which are printed substrates. ,
It consists of an adhesive layer 3, a polyethylene terephthalate (PET) film 4, a printing layer 5, a coating layer 6 for release, and a surface laminating film 7 having an adhesive layer 8 on the back surface, as shown in FIG. 1 (b). In this configuration, the sealing portion A inside the eye 9 can be peeled off, thereby forming the window application portion B. The peeled seal portion A can be attached to various articles by peeling the separator composed of the printing paper 1 and the release layer 2 as shown in FIG.

The sheet material with a seal having the above structure is shown in FIG.
It can be manufactured by the procedure shown in FIG. First, the release layer 2 is formed in a spot shape on the surface of the printed substrate (printing paper 1). The substrate (printing paper 1) on which printing has been performed can be one that has been appropriately printed on various types of paper or film. Whatever the material of the substrate or printing (ink type, method, design, etc.) can be used. However, the present invention is not limited to this, and paper that has been printed in advance may be used. The release layer 2 may be in close contact with the surface of the base material and have a peel strength of about 1 to 50 g / m ² with the adhesive layer 3 formed thereon. May be used, and the components are not particularly limited,
There is no particular limitation on the technique for forming the spot shape.

Next, an adhesive layer 3 is formed on the entire surface of the sheet. The adhesive layer 3 is not particularly limited in its composition, and any natural resin or synthetic resin may be used. For example, acrylic resin, urethane resin, vinyl acetate resin, ethylene vinyl acetate resin, rubber-based 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, it is 20 to 250 g / 25 mm. By making the adhesive in this range, the removability can be maintained and the attached article (adherend) can be peeled off without scratching. When the adhesive strength is lower than 10 g / 25 mm, the adhesive tends to be peeled off from the adherend during use. For example, an adherend having a curved surface tends to float. 500g / 25m
If it is higher than m, the guardian or the like may not be able to peel off from the adherend, and may scratch the adherend with claws or the like. The method for forming such an adhesive layer is not particularly limited, and any known method,
It may be formed by an apparatus.

The adhesive layer 3 formed as described above has a PE
The T film 4 is laminated. PET film 4
The thickness is 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 becomes poor, and if the thickness is more than 0.1 mm, it easily enters between nails or the like and is easily injured.

Subsequently, a printing layer 5 and a release coating agent layer 6 are formed on the surface. Specifically, printing is performed by any of the offset, gravure, flexo, and screen methods to form a print layer 5, and a release coating agent 6 is applied so as to be located immediately above the release layer 2.
For the printing layer 5, for example, a UV ink or an oil-based ink is not particularly limited, and a drying method according to the ink may be employed. As the release coating agent 6, the same release agent as that for forming the release layer 2 can be used, and the formation method thereof can be similarly performed.

Next, after performing a partial punching process on the boundary portion on which the release coating agent layer 6 is formed, it is dried by a means such as forced drying so that the residual solvent becomes 3 mg / m ² or less. Alternatively, partial punching may be performed after forcible drying. In this partial punching process,
Although the punching blade (the punch 9) reaches the printing paper 1 of the lowermost layer and forms the seal portion A, it 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 portion will float, and if the residual solvent is 3 mg / m ² or less, the film will be prevented from elongating (wrinkling) and will not float. The relationship between the amount of the residual solvent and the floating is as shown in FIG.
It is clear that the larger the amount of the residual solvent, the greater the occurrence of floating.

Finally, a surface laminating film 7 having an adhesive layer 8 on the back side is laminated on the entire surface of the sheet. The plastic sheet in the present invention is not particularly limited in terms of its material and the presence or absence of surface treatment. For example, polyethylene terephthalate (PET) resin, vinyl chloride (PVC)
A resin film can be used, and by using a transparent film, a window-attached portion B that allows the inside to be seen after the seal portion A is peeled off as shown in FIG. 1 is formed. Especially its tensile modulus is more than 250kg / mm
^When it is ² , wrinkles do not occur in the window-attached portion B.

The thus produced sheet material with a seal having a window-attached structure according to the present invention is used for the cover of the book cover without any scratches since the surface laminating film is laminated after partial punching. In this case, no trouble occurs. For example, the conventional sheet material is partially punched only for the label portion, so even if a transparent film is used for the base material, the surface of the transparent film is damaged during the half punching process, so that the appearance becomes extremely poor, It could not be applied to the cover of this book. In addition, since the peeled seal portion has a separator on the back surface and protects the adhesive layer, it can be stored without immediate use, so that it can be played like a trading card. .

Particularly in the production thereof, the residual solvent is 3 mg.
/ M ² or less, so that there is no floating in the window-attached portion, and the commercial value is high.

[0015]

Example 1 A sheet material was manufactured according to FIG. Printed art paper (Oji Paper's “SA Kanto A-
0)) in the form of a spot in the form of a spot on the surface according to the pattern (release agent; "Hakuri OP Varnish M-1XC" manufactured by Toyo Ink)
Was formed at 1.2 g / m ² . Adhesive layer (adhesive; Toyo Ink “BP”) on the entire surface of the sheet
S-5569K ") was 12g / m ² formation. A PET film (manufactured by Toyobo, thickness 38 μm) was laminated. Subsequently, offset UV printing was performed on the surface, and a release coating agent layer was formed using the release agent so as to overlap the release layer. Thereafter, forced drying was performed after partial punching. Surface laminating film (Toyobo PET film, thickness 16μ)
m) was laminated. The obtained sheet material had a residual solvent of 2.7 mg / m ² , did not float on the window-attached portion, and was excellent in usability both as a cover cover and a seal portion of a book.

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 portion where the window was attached, and was unsuitable as a book cover.

Although the present invention has been described based on the embodiments, the present invention is not limited to the above-described embodiments, and can be implemented in any manner unless the configuration described in the claims is changed. it can.

[0018]

As described above, the sheet material with a window-attached structure according to the present invention is not damaged at all because the surface laminating film is laminated after the partial laminating process. It does not cause any trouble when it is used for a CD cover, a picture book or a page with a magazine appendix. In addition, since the peeled seal portion has a separator on the back surface and protects the adhesive layer, it can be stored without immediate use, so that it can be played like a trading card. . Further, when a transparent PET film is used and the printing layer is made transparent, both the printing layer and the printing on the printing paper can be viewed simultaneously, and the visual design is high. Become.

Particularly in the production thereof, the residual solvent is 3 mg.
/ M ² or less, so that there is no floating in the window-attached portion, and the commercial value is high.

[Brief description of the drawings]

FIG. 1A is a cross-sectional view schematically showing a basic structure of a sheet material with a seal having a window-attached structure of the present invention, FIG. 1B is a cross-sectional view schematically showing a state in which a seal portion is peeled off, and FIG.
It is sectional drawing which shows the structure of a sealing part.

FIG. 2 is a cross-sectional view schematically showing a method for manufacturing a sheet material with a seal having a window-attached structure according to the present invention.

FIG. 3 is a graph showing the relationship between the thickness of a luminous paint thin film, the amount of light emitted from a sealing material, and the material cost.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Printing paper 2 Release layer 3 Adhesive layer 4 PET film 5 Printing layer 6 Release coating agent layer 7 Surface laminating film 8 Adhesive layer 9 Opening A Sealed part B Window part

Claims (6)

[Claims] 1. In order from the bottom, a printed base material, a release layer formed in a spot shape on the surface thereof, an adhesive layer, and a thickness of 0.0
A polyethylene terephthalate film having a thickness of 0.5 to 0.1 mm, a printing 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 having an adhesive layer on the back surface. A window characterized by being able to peel off a seal portion subjected to a partial punching process with the mold coating agent layer as the outermost surface from the back surface of the surface laminating film, thereby forming a window sticking portion. A sheet material with a seal having a pasting structure. 2. The sheet with a seal having a window-attached structure according to claim 1, wherein the release agent and / or the coating agent for mold release forming the release layer is mainly composed of a silicone resin. material. 3. The adhesive layer is made of an acrylic resin, a urethane resin, a vinyl acetate resin, an ethylene-vinyl acetate resin, or a rubber system, and has an adhesive strength to a stainless steel plate of 10 to 50.
The weight is 0 g / 25 mm.
3. A sheet material with a seal having the window-attached structure according to 1. 4. The surface laminating film has a tensile elasticity.
Rate is 250kg / mm ^TwoPolyethylene teref
It is characterized by being made of tarrate resin or vinyl chloride resin
The window-attached structure according to any one of claims 1 to 3,
Having a sheet material with a seal. 5. A release layer is formed in the form of a spot on the surface of the printed substrate, an adhesive layer is formed on the entire surface of the sheet, and a polyethylene terephthalate film having a thickness of 0.005 to 0.1 mm is further laminated. The surface is subjected to printing by any of offset, gravure, flexo, and screen, and a coating agent for release is applied so as to be located immediately above the release layer, and a portion is formed at a boundary portion where the coating agent layer for release is formed. After punching, remove residual solvent
mg / m ² or less, or after previously drying the residual solvent to 3 mg / m ² or less, partially punching, and further applying an adhesive layer on the entire back surface of the sheet. A method for producing a sheet material with a seal having a window application structure, comprising laminating a film for surface lamination. 6. The method for producing a sheet material with a window-attached structure according to claim 5, wherein the window-attached structure is subjected to forced drying to reduce the residual solvent to 3 mg / m ² or less.