JPH02120100A - Marking sheet manufacturing method - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for manufacturing a marking sheet, and more particularly to a method for manufacturing a marking sheet that is adhered to the surface of a signboard substrate to display a trade name or the like.

<Prior Art> Conventionally, signboards placed on streets have typically written the trade name or business using paint or the like on the signboard base, and have been attached to the outer wall of a building, such as the second floor.

However, when the markings are written using paint or the like, they may peel off, or it is extremely inconvenient to remove the markings when it is desired to change the markings, such as when the markings have become old.

Therefore, in recent years, a colored sheet in the shape of the content to be displayed (for example, the shape of a letter) is attached to a plastic sheet containing a knitted fabric that has improved weather resistance and strength to make a marking sheet, and this marking sheet is used as described above. A method of constructing a signboard by bonding it to a signboard base was proposed,
It has been implemented. When changing the display, this marking sheet is peeled off from the signboard base and a new marking sheet is attached.

<Problems to be Solved by the Invention> By the way, a plastic sheet with a built-in textile fabric has irregularities on its surface, so air tends to remain between the two, and the thickness of the sheet itself Due to its elasticity, there was a problem in that it was easily peeled off from the ends.

<Means for Solving the Problem> In order to solve this problem, the present invention has a transfer sheet formed by forming an adhesive pattern layer on a releasable sheet, and a plastic sheet containing a textile fabric, which are stacked together under reduced pressure. The present invention provides a method for manufacturing a marking sheet, characterized in that the adhesive pattern layer is transferred using a method of manufacturing a marking sheet.

<Example> The transfer sheet (1) according to the present invention consists of a releasable sheet 00 and an adhesive pattern layer 02).

Peelable sheet (10 is a sheet that supports the adhesive pattern surface so that it can be easily peeled off, and can be a polyolefin film such as polypropylene, a polyester film, or a sheet in which a polypropylene resin or silicone resin layer is laminated on a support such as paper, etc.) .

The adhesive pattern layer (+21) constitutes the display of the signboard and is formed in the shape of, for example, letters.

The adhesive pattern layer 021 may consist of a single ink layer made of ink mixed with a heat-adhesive resin binder and a colorant, but it is preferable that it consists of a multilayer structure according to the function. As shown in the figure, from the removable sheet CI+) side, the protective N (12a), the colored layer (12b)
It has a structure in which adhesive layers (12c) are laminated.

The protective layer (12a) is peeled from the releasable sheet 01) and protects the colored layer (12b) from wind and rain after transfer, and is preferably made of a transparent resin with excellent weather resistance.For example, acrylic resin. , or a mixture of polyvinyl chloride and acrylic resin, acrylic resin and modified acrylic resin, etc.

The colored layer (12b) visualizes the adhesive pattern layer Oz, and is preferably an ink containing a coloring agent.As a binder for the ink, acrylic resin, polyvinyl chloride (including a plasticizer), etc. can be used.

The adhesive layer (12c) is for firmly adhering the colored layer (12b) to the transfer target, and is preferably made of a resin that melts and softens with heat and develops adhesive strength.For example, acrylic resin, polyvinyl chloride, special vinyl chloride, etc. , is a cellulose resin.

For adhesive pattern layer 0, each layer (12a) (12b) (
12c) may be printed in a predetermined shape, but it is more convenient to print and laminate the entire surface solidly and then use a knife or laser to cut out the adhesive pattern layer 021 and remove unnecessary parts. It is easy to meet the demands of

The object to be copied is a plastic sheet (2
).

The textile fabric QIl is for improving the strength of the plastic sheet (2), and is made of polyamide yarn (nylon),
Net 7 made of strong fibers such as polyester yarn
) or woven fabric is preferable.

In order to produce a plastic sheet I21) with a built-in textile fabric Qυ, a plastic sheet I21) is placed on both sides of this textile fabric.
This can be done by placing the plastic sheet 03 on the textile fabric Qυ and applying heat and pressure to infiltrate the plastic sheet 03 into the inside of the textile fabric Qυ. A soft polyvinyl chloride sheet can be used as the plastic sheet fence. At this time, unevenness due to the textile fabric Qυ appears on the surface of the plastic sheet (2).

The transfer can be performed by overlapping a transfer sheet (1) and a transfer object made of a plastic sheet (2) containing a textile fabric under reduced pressure and applying heat and pressure.

It is sufficient to remove the air between the transfer sheet (1) and the object to be transferred, and the pressure reduction strengthens the adhesion between the two, but the entire transfer apparatus may be installed in a vacuum chamber.

The pressure should be reduced to 50 torr or less, but the pressure should be 20 t.
It is desirable that it be less than orr. This is because the adhesive pattern layer θ and the object to be transferred/photographed are in close contact with each other, and no air remains between the uneven concave portions on the surface of the object to be transferred and the adhesive pattern layer θ.

After the transfer, only the releasable sheet (10) is peeled off and removed.

FIG. 3 is an explanatory diagram for explaining the transfer method. The entire apparatus is provided in a vacuum chamber with a pressure of 20 torr or less.

In Fig. 3, first, the plastic sheet (2) containing the textile fabric is pulled out from the roll, and the back sheet (3) is pulled out from the roll.
), then the plastic sheet (2) and the back sheet (3) are stacked on the heating roll (5) in this order via the transfer sheet (1), and transferred. The purpose of the back sheet (3) is to adhere the adhesive pattern layer 021 remaining in the margin of the transfer sheet (1) to prevent contamination of the roll or the like. Next, the releasable sheet (1)), the transferred plastic sheet (2), and the back sheet (3) are each peeled off and wound up separately.

In addition, in Figure 3, the transfer sheet (1) is also a plastic sheet.
(2) is also an example of a long sheet, and in the case of a single sheet, it is sufficient to stack them on a substrate and heat them. Heating can be done using a hot plate or infrared rays.

Test Example 1 A sheet of paper laminated with polypropylene was used as a removable sheet, and a mixture of polyvinyl chloride and acrylic resin was applied as a protective layer to the entire surface of the polypropylene surface, and then polyvinyl chloride and acrylic resin were applied as a binder. Black ink was repeatedly applied to the entire surface six times, and acrylic adhesive was further applied to the entire surface. The protective layer, colored layer, and adhesive layer were all coated using a gravure printing machine, then cut into character shapes using a cutting machine, and unnecessary parts were removed to form a transfer sheet. did.

A soft polyvinyl chloride sheet was layered on both sides of the polyester yarn net, and the whole was integrated by hot pressing to form a transfer target.

In a vacuum chamber at 10 torr, the transfer sheet and the object to be transferred were overlapped as shown in FIG. 3, and the transfer was performed at 130° C. for 2 minutes, and the release sheet was removed. The adhesive pattern layer was in close contact with the object to be transferred, there was no air remaining between the object to be transferred and the adhesive pattern layer, and it was difficult to peel off easily.

Test Example 2 A releasable sheet was prepared by laminating polyester films on both sides of paper.

A protective layer, a colored layer, and an adhesive layer were sequentially applied to the entire surface of this single side using a microgravure printing machine.

The protective layer is an acrylic resin, the colored layer is a red ink containing polyvinyl chloride and an acrylic resin as a binder, and the adhesive layer is a mixture of acrylic and polyvinyl chloride.

Next, the protective layer, colored layer, and adhesive layer were cut out in the shape of letters using a computer cutting machine, and unnecessary portions were removed to obtain a transfer sheet.

The same material as in Test Example 1 was used as the transfer target.

Both of these were stacked on a base in a vacuum chamber at 10 torr, heated with far infrared rays at 130° C. for 14 minutes, cooled to room temperature, and then the releasable sheet was removed. The adhesive pattern layer was in close contact with the object to be transferred, and there was no air remaining between the object to be transferred and the adhesive pattern layer, and it was difficult to peel off easily.

<Effects> As described above, according to the present invention, a pattern can be formed on the surface of a plastic sheet containing a textile fabric with difficulty in peeling off, making it ideal as a marking sheet for signboards.

[Brief explanation of drawings]

The drawings show embodiments of the present invention; FIG. 1 is a sectional view of a transfer sheet, FIG. 2 is a sectional view of a plastic sheet containing a textile fabric, and FIG. 3 is an explanatory diagram for explaining the transfer method. (1)...Transfer sheet 01)...Peelable sheet 02
)...Adhesive pattern layer (12a)...Protective layer (1
2b)... Colored layer (12c)... Adhesive layer (2
)...Plastic sheet with built-in knitted fabric 00...
・Knitted fabric ■・・・Plastic sheet (3)・
... Back sheet (4) ... Preheating roll (5) ...
Heating roll] 1 Figure 1 Chopsticks 2! ni 1 Mayuzumi 3

Claims (1)

[Claims] (1) A marking sheet characterized in that a transfer sheet comprising an adhesive pattern layer formed on a releasable sheet and a plastic sheet containing a textile fabric are layered under reduced pressure to transfer the adhesive pattern layer. Production method.