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A protective film with soft adhesive surface and its production process

A production process and bonding surface technology, applied in the field of protective film and its production process, can solve the problems of poor softness, easy to fall off, easy to generate air bubbles, etc., and achieve the effect of uniform thickness and not easy to fall off

Inactive Publication Date: 2016-03-02
佛山凯仁精密材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a protective film with a soft adhesive surface and its production process, aiming to solve the technical problems that the traditional protective film has an unstable adhesive surface, easy to fall off, poor softness, and easy to generate air bubbles

Method used

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  • A protective film with soft adhesive surface and its production process

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Embodiment 1

[0030] This embodiment discloses a soft protective film on the adhesive surface, the components of the adhesive surface are by weight, including:

[0031] 550 parts of solvent;

[0032] 21 parts of crosslinking agent;

[0033] 11 parts of curing agent;

[0034] 1000 parts of resin;

[0035] In this embodiment, the solvent includes a mixture of solvent A and solvent B with different boiling points, solvent A is solvent TOL; solvent B is solvent MEK, and the mixing ratio of solvent A and solvent B is 10:1. In practical applications, solvent IPA can also be selected as solvent B. When solvent IPA is selected, the mixing ratio of solvent A and solvent B is 10:1. In this embodiment, two solvents with different volatilization temperatures are used for mixing, so that the adhesive surface liquid in this embodiment presents a stepwise volatilization effect. Compared with the instant volatilization of one solvent, the bonding surface of this embodiment The nature of the surface liq...

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Abstract

The invention discloses a protective film with a soft bonding surface and a production technique thereof. The protective film comprises a protective film body and a bonding surface attached to the surface of the protective film. The bonding surface comprises the following components in parts by weight: 550 parts of solvent, 21 parts of crosslinking agent, 11 parts of curing agent and 1000 parts of resin. The solvent is a mixture composed of a solvent A and a solvent B with different boiling points, wherein the solvent A is solvent TOL, and the solvent B is solvent MEK or solvent IPA. The crosslinking agent comprises one or mixture of a 7387-type crosslinking agent and a 9250-type crosslinking agent. The resin is a 7650-type resin. The bonding surface of the protective film has the advantages of uniform thickness and high softness; the protective film can be stably attached to the screen, has the self-bleeding effect, and can not generate bubbles; and the bonding surface can not easily peel and can be attached for the second time.

Description

technical field [0001] The invention relates to a protective film and a production process thereof, in particular to a protective film with a soft adhesive surface and a production process thereof. Background technique [0002] Touch-screen electronic products on the market are generally attached with a protective film to protect the screen. The protective film on the market is generally coated with an adhesive to make the contact surface (adhesive surface) between the protective film and the screen have a certain degree of stickiness. The protective film can be stably attached to the screen. However, due to the poor stability of the adhesive, the combination of the adhesive surface and the protective film is very unstable. When the protective film is used for a period of time, it is torn off, and there will be a large amount of residue on the adhesive surface on the screen, which needs to be reapplied. It is troublesome to clean the screen and replace the protective film. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/02C09J201/00
Inventor 薛卓臣
Owner 佛山凯仁精密材料有限公司
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