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Substrate with antifouling film

An antifouling and matrix technology, applied in the input/output process of data processing, instruments, synthetic resin layered products, etc., can solve the problems of damage visibility and aesthetics, and achieve excellent antifouling and wear resistance Effect

Active Publication Date: 2021-07-20
ASAHI GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that visibility and aesthetics are impaired in the touch panel on which such dirt adheres.

Method used

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  • Substrate with antifouling film
  • Substrate with antifouling film
  • Substrate with antifouling film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0161] A substrate with an antifouling film was produced through the following steps.

[0162] (1) Anti-glare treatment and etching treatment

[0163] Chemically strengthened glass (Dragontrail (registered trademark, hereinafter also referred to as "DT"), manufactured by Asahi Glass Co., Ltd.) was used as a transparent substrate. Then, anti-glare treatment based on frosting treatment is performed on the surface of the transparent substrate through the following steps. First, an acid-resistant protective film was bonded to the back side of the transparent substrate which is not subjected to anti-glare treatment. Next, this transparent base was immersed in a 3% by weight hydrogen fluoride solution for 3 minutes to remove dirt adhering to the surface of the transparent base. Next, the transparent substrate was immersed in a mixed solution of 15% by weight hydrogen fluoride and 15% by weight potassium fluoride for 3 minutes, and the surface of the transparent substrate on which ...

Embodiment 2

[0182] An antifouling film having an optical film thickness of 15 nm was formed on a transparent substrate in the same manner as in Example 1, except that the antiglare treatment was not performed and the antireflection film was not formed. In addition, a protective film with an adhesive layer (EC-9000AS, manufactured by SUMIRON Corporation) was provided on both sides of the transparent substrate on which the antifouling film was formed in the same manner as in Example 1 to manufacture a substrate with an antifouling film 2 . The rubbing durability, optical film thickness, and optical unevenness of the antifouling film were measured in the same manner as in Example 1.

Embodiment 3

[0184] An antifouling film having an optical film thickness of 25 nm was formed on a transparent substrate in the same manner as in Example 1, except that the antiglare treatment was not performed and the antireflection film was not formed. In addition, a protective film with an adhesive layer (UA-3000AS, manufactured by SUMIRON Co., Ltd.) was provided on both sides of the transparent substrate on which the antifouling film was formed using the same laminator as in Example 1, and the substrate with an antifouling film 3 was produced. . The material of the adhesive layer constituting the protective film with an adhesive layer is a polyurethane adhesive, and the 180-degree peel adhesion of the adhesive layer to the acrylic substrate (according to JIS Z 0237) is 0.15N / 25mm, and the protective film is PET-based film, the thickness of the protective film is 25 μm. The rubbing durability, optical film thickness, and optical unevenness of the antifouling film were measured in the sa...

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Abstract

The present invention provides a substrate with an antifouling film, which is a substrate with an antifouling film, an adhesive layer, and a protective film sequentially provided on the main surface of a transparent substrate, and the adhesive layer and the protective film are removed. The substrate of the film, the optical film thickness of the antifouling film in the state provided with the adhesive layer and the protective film is 10 nm to 50 nm, and the antifouling film after removing the adhesive layer and the protective film The optical film thickness of the film is 3 nm to 30 nm.

Description

technical field [0001] The invention relates to a substrate with an antifouling film. Background technique [0002] Touch panels used in smartphones, tablet PCs, car navigation devices, and the like come into contact with human fingers during use, so dirt from fingerprints, sebum, sweat, and the like tends to adhere. Furthermore, if these stains are attached, they are difficult to come off, and the difference between the stained portion and the non-stained portion is conspicuous due to the difference in light scattering and reflection. Therefore, there is a problem that the visibility and appearance of the touch panel with these dirts are impaired. Furthermore, the same problems have been pointed out in display glass, optical elements, sanitary equipment, and the like. [0003] In order to solve such problems, there is known a method of using a substrate formed with an antifouling film made of a fluorine-containing hydrolyzable silicon compound on parts of these components...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B7/06B32B27/00G02B1/14G02B1/18G06F3/041
CPCB32B7/06B32B27/00G06F3/041G02B1/14G02B1/18C09D5/1675B32B17/06B32B2307/714
Inventor 藤井健辅宫村贤郎桥本匡平
Owner ASAHI GLASS CO LTD