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Hard coating and manufacturing mehtod

A manufacturing method and hard coating technology, which can be used in chemical instruments and methods, other household appliances, instruments, etc., can solve problems such as difficult to print, and achieve excellent scratch resistance and good writing feeling

Active Publication Date: 2014-12-24
LINTEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, usually the display module of the touch panel is hard, and the surface of the touch panel provided with the hard coating film is also hard.
Therefore, the writing feeling of the stylus is different from that of writing on paper with a pencil or ballpoint pen, and it is difficult to call it good.

Method used

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  • Hard coating and manufacturing mehtod
  • Hard coating and manufacturing mehtod
  • Hard coating and manufacturing mehtod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] Ethoxylated dipentaerythritol hexaacrylate (manufactured by Shin Nakamura Chemical Industry Co., Ltd., NK Ester A-DPH-12E, which is a polyfunctional (meth)acrylate having a plurality of ethylene oxide units, ethylene oxide in 1 molecule Amount of alkane unit: 12 mol) 50 parts by mass (represented in terms of solid content. Hereinafter, the same applies to other components.); Pentaerythritol triacrylate ( New Nakamura Chemical Industry System, NK Ester A-TMM-3L) 50 mass parts; 1-hydroxycyclohexyl phenyl ketone (BASF company system, イルガキュア 184) 10 mass parts as photopolymerization initiator; 0.1 parts by mass of a polysiloxane-modified acrylic polymer (silicon-based leveling agent; BYK-3550 manufactured by Bicchem Corporation) was mixed to obtain a coating composition. This coating composition was diluted with propylene glycol monomethyl ether to prepare a coating liquid having a solid content concentration of 30%. In addition, based on the said compounding, the quantity...

Embodiment 2

[0098] Ethoxylated dipentaerythritol hexaacrylate (manufactured by Shin Nakamura Chemical Industry Co., Ltd., NK Ester A-DPH-12E, which is a polyfunctional (meth)acrylate having a plurality of ethylene oxide units, ethylene oxide in 1 molecule The amount of alkylene units present: 12 moles) was changed to 30 parts by mass, and pentaerythritol triacrylate (manufactured by Shin Nakamura Chemical Industries, NK Ester A- Except having changed the compounding quantity of TMM-3L) into 70 mass parts, and having formed a hard coat layer, it carried out similarly to Example 1, and manufactured the hard coat film. In addition, the quantity of the ethylene oxide unit in the total amount of polyfunctional (meth)acrylate was 15 mass % from said compounding.

Embodiment 3

[0100] Ethoxylated dipentaerythritol hexaacrylate (manufactured by Shin Nakamura Chemical Industry Co., Ltd., NK Ester A-DPH-12E, which is a polyfunctional (meth)acrylate having a plurality of ethylene oxide units, ethylene oxide in 1 molecule The amount of alkylene units present: 12 moles) was changed to 100 parts by mass, and pentaerythritol triacrylate (manufactured by Shin Nakamura Chemical Industries, NK Ester A- Except having changed the compounding quantity of TMM-3L) into 0 mass part, and having formed a hard coat layer, it carried out similarly to Example 1, and manufactured the hard coat film. In addition, the quantity of the ethylene oxide unit in the total amount of polyfunctional (meth)acrylate was 48 mass % from the said compounding.

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Abstract

The invention provides a hard coating. Writing feeling of a touch pen is good and anti-scraping performance is excellent. The hard coating 1 is provided. The hard coating comprises a base material film 11 and a hard coating 12 arranged on a surface of one side of the base material film 11. The elasticity modulus of the hard coating 12 is 700MPa-7000MPa. To the surface of the hard coating 12, when a hard felt core touch pen with a pen tip diameter of 0.5mm scans under a pressure of 150g weight and at a speed of 100mm / min, the sliding value of the resistance of the pen tip is more than 250mN.

Description

technical field [0001] This invention relates to the hard coat film for touch panels using a stylus pen, and its manufacturing method. Background technique [0002] In recent years, in various electronic devices, touch panels that are both display devices and input devices are widely used. The surface of the touch panel is usually formed with a hard coat film having a hard coat layer in order to prevent damage. [0003] Among the above-mentioned touch panels, besides finger input, there is also a touch panel that sometimes uses a stylus pen for input. The stylus pen is thinner than a finger, so that high-precision input operations can be performed. However, the display module of the touch panel is generally hard, and the surface of the touch panel on which the hard coating film is provided is also hard. Therefore, the writing feeling of the stylus pen is different from that of writing on paper with a pencil or a ballpoint pen, and it cannot be said to be good. [0004] In...

Claims

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Application Information

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IPC IPC(8): B32B27/08B32B37/00
CPCG02B1/04G02B1/14C08J5/18B32B27/08B32B27/308B32B2457/208
Inventor 星野弘气大类知生所司悟
Owner LINTEC CORP
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