Unlock instant, AI-driven research and patent intelligence for your innovation.

Adhesive sheet, method of using adhesive sheet, and method of producing adhesive sheet

An adhesive sheet, adhesive layer technology, applied in the direction of bonding method, adhesive, adhesive type, etc., can solve problems such as label lifting, yield or productivity problems, label movement contamination, etc.

Active Publication Date: 2016-06-22
LINTEC CORP
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the adhesive protrudes from the die-cut end surface and adheres to the side opposite to the release agent layer of the release sheet base material, causing the label to warp, thereby causing the label to move and stain on the surface opposite to the release agent layer of the release sheet. problem, become a problem in terms of yield or production rate
[0005] In addition, when the laminate is formed without removing the residue after die-cutting, the label may be lifted on the side opposite to the release agent layer of the release sheet base material or the residue portion may be lifted due to the adhesive overflowing from the die-cut end face. bad situation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Adhesive sheet, method of using adhesive sheet, and method of producing adhesive sheet
  • Adhesive sheet, method of using adhesive sheet, and method of producing adhesive sheet
  • Adhesive sheet, method of using adhesive sheet, and method of producing adhesive sheet

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0108] [Preparation method of adhesive sheet]

[0109] The manufacturing method of the adhesive sheet of this invention is characterized by having the following process (a) - process (d).

[0110] Step (a): sequentially laminating a heavy release sheet, an adhesive layer with a thickness of 75-500 μm, and a protective film having a lower peeling force than the heavy release sheet to obtain a laminated sheet (A);

[0111] Step (b): a step of punching the adhesive layer and protective film of the laminated sheet (A) into a prescribed shape to obtain the laminated sheet (B);

[0112] Step (c): removing the protective film of the portion other than the predetermined shape, the adhesive layer of the portion other than the predetermined shape, and the protective film of the portion of the predetermined shape from the laminated sheet (B) removing, obtaining the laminated sheet (C) with the adhesive layer on the heavy release sheet;

[0113] Step (d): Attaching the easy-release shee...

Embodiment 1

[0146] The adhesive coating solution obtained in the preparation example was coated on a heavy-release sheet (manufactured by Lintec Corporation, product name "SP-PET753030", thickness: 75 μm) so that the thickness after drying was 175 μm, and 130 It was dried in an oven at °C, and a protective film (manufactured by Lintec Corporation, product name "SP-PET382120", thickness: 38 μm) was attached to the formed adhesive layer to obtain an adhesive sheet. After standing at room temperature for 1 week, the protective film and the adhesive layer were punched from the protective film surface (flat die punching method) to a size of 60 mm in length and 40 mm in width. Next, the unnecessary portion of the protective film (the portion other than the above-described punching process of 60 mm in length and 40 mm in width) was removed, and further, the unnecessary portion of the adhesive layer and the remaining protective film were removed. Then, use a labeling machine to process the die pu...

Embodiment 2

[0149] Except changing the easy release sheet to "SP-PET502120" manufactured by Lintec Co., Ltd., and thickness: 50 μm, the adhesive sheet was produced in the same manner as in Example 1, and the easy release sheet was rotated at the angle shown in Table 1. Peel off and evaluate for residual blocking. The results are shown in Table 1.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
peel strengthaaaaaaaaaa
peel strengthaaaaaaaaaa
Login to View More

Abstract

The present invention provides an adhesive sheet that is less prone to residual blocking and less prone to breakage of the adhesive layer during removal of the adhesive layer, that is, less likely to cause poor removal of paste residues, even without performing complicated operations. The adhesive sheet is formed by sandwiching an adhesive layer between a light release sheet and a heavy release sheet, and is characterized in that the peel force at the interface between the light release sheet and the adhesive layer measured by a prescribed method is 30-90mN / 25mm, the peeling force of the interface between the heavy peeling sheet and the adhesive layer measured by a prescribed method is 150-300mN / 25mm, the thickness of the adhesive layer is 75-500μm, the area ratio of the light peeling sheet and the The area of ​​the adhesive layer contacted by the light release sheet is large, and at least part of the distance from the end of the adhesive layer to the end of the light release sheet is 8-35 mm.

Description

technical field [0001] The invention relates to an adhesive sheet, a method for using the adhesive sheet and a method for preparing the adhesive sheet. More specifically, it relates to a high-thickness adhesive sheet sandwiched by two release sheets with different peeling forces. Peeling, the phenomenon that the adhesive layer is stretched between the release sheets on both sides), and when the adhesive layer is punched, it is difficult to break the adhesive layer (ie, poor removal of paste residue). The present invention also relates to an efficient production method of the adhesive sheet, and a method of using the adhesive sheet. Background technique [0002] The capacitive touch panel has a laminate structure of a transparent base material. In this laminated structure, a glass plate is used for members near the operation side from the viewpoint of design. This glass plate is printed with a frame-like decoration, which has the effect of concealing the electrodes inside ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/02C09J133/10
CPCC08J5/18C09J5/00C09J7/22C09J7/38C09J7/40C09J2203/318C09J2301/16C09J2301/302C09J2301/312C09J2301/40
Inventor 本乡有记江嶋丰川田智史
Owner LINTEC CORP