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Method for manufacturing film laminate having print layer

A manufacturing method and film lamination technology, applied in chemical instruments and methods, coating, lamination, etc., can solve problems such as film curling, and achieve the effect of high pencil hardness

Pending Publication Date: 2021-06-11
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to form the printed layer, it takes a long time to heat and dry, and as a result, there is a problem that the film with the printed layer is curled.

Method used

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  • Method for manufacturing film laminate having print layer
  • Method for manufacturing film laminate having print layer
  • Method for manufacturing film laminate having print layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0102] 1. Preparation of Coating Liquid for Hard Coat Formation

[0103] 100 parts by mass of an ultraviolet-curable multifunctional acrylate (manufactured by Aica Kogyo Co., Ltd., product name "Z-850-16") as a matrix resin, a leveling agent (manufactured by DIC Corporation, product name: GRANDIC PC-4100) 5 Parts by mass and 3 parts by mass of a photopolymerization initiator (manufactured by Ciba Japan Co., Ltd., trade name: IRGACURE 907) were mixed, and diluted with methyl isobutyl ketone so that the solid content concentration became 50% by mass, and prepared A coating solution for forming a hard coat layer.

[0104] 2. Production of protective film

[0105] Add 90 parts by weight of butyl acrylate (BA), 10 parts by weight of acrylic acid (AA), and 2,2'-azo 0.2 parts by weight of diisobutyronitrile, 234 parts by weight of ethyl acetate, nitrogen gas was introduced while slowly stirring, and the liquid temperature in the flask was kept at around 63°C for about 7 hours of po...

Embodiment 2

[0111] Except having performed drying at 60 degreeC for 50 minutes, it carried out similarly to Example 1, and obtained the film laminated body with a printing layer. The same evaluation as in Example 1 was performed on the obtained film laminate with a printed layer. The results are shown in Table 1.

Embodiment 3

[0113] Except having performed drying at 50 degreeC for 40 minutes, it carried out similarly to Example 1, and obtained the film laminated body with a printing layer. The same evaluation as in Example 1 was performed on the obtained film laminate with a printed layer. The results are shown in Table 1.

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Abstract

Provided is a simple method for manufacturing a film laminate (100) having a print layer, the film laminate having high pencil hardness and suppressed curling. This method for manufacturing a film laminate having a print layer includes: forming a hard coat layer (20) on one surface of a base material film (10); forming a print layer (30) on another surface of the base material film; laminating a protective film (40) having a heat shrinkage rate in a conveyance direction of 0.1% or less on the surface of the hard coat layer; and heating and drying the print layer while a protective film is laminated thereon.

Description

technical field [0001] This invention relates to the manufacturing method of the film laminated body with a printing layer. Background technique [0002] As a means of improving the designability of various products, decorative films (films with printed layers) have been used. For example, as one of methods for improving the design of an image display device (for example, shielding without using a frame, such as wiring in a non-display area), it has been proposed that the part corresponding to the non-display area of ​​the front panel (typically, the peripheral edge) Part) is provided with a colored layer, a design layer, or a decorative layer, etc. (for example, Patent Documents 1 and 2). However, in order to form a printed layer, heating and drying for a long time is required, and as a result, there is a problem that the film with a printed layer is curled. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent Laid-Open No....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/28B32B27/18B32B7/12B32B7/06B32B27/36B32B33/00B32B38/14B32B38/16B32B38/10B32B38/00G09F9/30G02B1/10
CPCB32B27/281B32B27/18B32B7/12B32B7/06B32B27/36B32B33/00B32B38/145B32B38/164B32B38/10B32B38/00G09F9/30G02B1/10B32B2255/10B32B2255/26B32B2307/536B32B2457/20B32B2038/0076B32B7/028B32B27/00B32B27/30B32B27/34B32B37/06G02B1/14B32B37/02B32B38/004B32B43/006B32B27/302B32B27/365
Inventor 渊田岳仁石原康隆
Owner NITTO DENKO CORP
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