OCA (optical clear adhesive) wet coating specialized functional film

A wet coating, functional technology, applied in the direction of film/sheet release coating, film/sheet adhesive, coating, etc., can solve the problem of easy occurrence of static electricity, achieve good anti-static effect and improve product qualification The effect of reasonable rate and structural design

Inactive Publication Date: 2017-02-22
DONGGUAN DINGLI FILM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above deficiencies, the purpose of the present invention is to provide an ingenious and reasonable structural design with anti-static function, which can solve the problem of static electricity that is prone to occur when OCA products are coated and torn, and prevent the accumulation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: the embodiment of the present invention provides a kind of special functional film of OCA adhesive wet coating, and it comprises release liquid coating 1, PET polyester film 2 and antistatic coating 3, described release liquid coating 1, PET polyester film 2 and antistatic coating 3 are pasted successively according to the order from top to bottom; Wherein said release liquid coating 1 is made up of the component of following parts by weight: silicone oil 1 kg, bonding agent 32g, Anchoring agent 18g, peeling agent 10g, curing agent 12g, ethyl ester 2.5kg, butanone 2.5kg.

[0012] The antistatic coating 3 is composed of the following components in parts by weight: 1 g of conductive liquid, 3 g of isopropanol. The release force of the release liquid coating 1 is 5-10 g, and the thickness of the release liquid coating 1 is 1-2 microns.

[0013] Preferably, the antistatic coating 3 has a thickness of 1-2 microns. The thickness of the PET polyester film 2 is ...

Embodiment 2

[0014] Embodiment 2, the embodiment of the present invention provides a special functional film for wet coating of OCA glue, which is basically the same as Embodiment 1, the difference is that the components of the antistatic coating 3 and the release liquid coating 1 are different, specifically:

[0015] The antistatic coating 3 is composed of the following components by weight: 0.9 kg of conductive liquid and 3.2 kg of isopropanol.

[0016] The release liquid coating 1 is composed of the following components in parts by weight: 0.9 kg of silicone oil, 35 g of bonding agent, 20 g of anchoring agent, 12 g of stripping agent, 10 g of curing agent, 2.3 kg of ethyl ester, and 2.7 kg of butanone.

Embodiment 3

[0017] Embodiment 3, the embodiment of the present invention provides a special functional film for wet coating of OCA glue, which is basically the same as Embodiment 1, the difference is that the components of the antistatic coating 3 and the release liquid coating 1 are different, specifically:

[0018] The antistatic coating 3 is composed of the following components by weight: conductive liquid 1.1kg, isopropanol 2.8kg.

[0019] The release liquid coating 1 is composed of the following components in parts by weight: 1.1 kg of silicone oil, 30 g of bonding agent, 16 g of anchoring agent, 8 g of stripping agent, 14 g of curing agent, 2.7 kg of ethyl ester, and 2.3 kg of butanone.

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Abstract

The invention discloses an OCA (optical clear adhesive) wet coating specialized functional film. The OCA wet coating specialized functional film comprises a releasing-type liquid coating, a PET (polyester) film body and an anti-static coating which are sequentially attached from top to bottom. The OCA wet coating specialized functional film is reasonable in structural design and specially suitable for the OCA wet coating process since the PET film body is ingeniously coated with the anti-static coating and the releasing-type liquid coating and components of the anti-static coating and the releasing-type liquid coating are reasonably optimized, good anti-static effect is achieved, the problem about static electricity easy to occur to coating and tearing of OCA products can be solved, bad situation generated from gathering of dust and foreign objects due to the static electricity is prevented, the situation that solvent can be effectively prevented from immersion corrosion to lead failure in tearing the OCA by the releasing-type layer in the OCA wet coating process is guaranteed, product quality is effectively guaranteed, product percent of pass is increased, convenience is brought to the OCA wet coating process, wide application is facilitated, and the OCA wet coating specialized functional film is specially suitable for the field of full lamination of smart phone screens.

Description

technical field [0001] The invention relates to the technical field of wet coating of OCA optical glue, in particular to a special functional film for wet coating of OCA glue. Background technique [0002] OCA (Optically Clear Adhesive) is a special adhesive used to bond transparent optical components (such as lenses, etc.). It is required to be colorless and transparent, with a light transmittance of over 90%, good bonding strength, curable at room temperature or medium temperature, and has the characteristics of small curing shrinkage. OCA optical glue is one of the important raw materials of touch screen. The optical acrylic adhesive is made without a base material, and then a layer of release film is attached to the upper and lower base layers. It is a double-sided adhesive tape without a base material. [0003] With the rapid development of the domestic smart phone industry and the development trend of thinner and thinner mobile phones, the domestic mobile phone scree...

Claims

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Application Information

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IPC IPC(8): C09J7/02C09D183/04C09D5/24
CPCC09D5/24C09D183/04C09J7/255C09J7/50C09J2483/003
Inventor 彭权戴元
Owner DONGGUAN DINGLI FILM TECH
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