Release film and preparation method thereof

A technology of release film and release layer, which is applied in coating and other directions, can solve the problems of increasing interference fringes and increasing costs, and achieve the effects of reducing cost, improving adhesion and durability, and good optical appearance
CN105017550BActive Publication Date: 2019-10-01ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
Publication Date
2019-10-01

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Abstract

The invention provides a release film and a preparation method thereof. The release film comprises a base material original film, an intermediate layer and a release layer which are sequentially stacked from bottom to top, wherein the intermediate layer is a resin coating formed by reaction on epoxy silane and unsaturated functional silane in an environment that a metal chelate exists. According to the release film provided by the invention, by adding the intermediate layer between the base material original film and the release layer and improving the adherence and durability of the release film by using the intermediate layer, the service life of a product is prolonged and the cost of the product is lowered as the release film has the characteristics of being good in optical appearance and convenient to monitor on a production line. Moreover, as the release film provided by the invention does not contain heavy metals, halogens and compounds thereof, the release film can be widely applied to protective films in medical or sanitary industry, so that the using range of the release film is expanded.
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Description

Technical field

[0001] The present invention relates to the technical field of thin films, in particular to a release film and a preparation method thereof. Background technique

[0002] At present, the release films on the market are mostly used as protective films for semiconductor components, liquid crystal panels, plasma (Plasma Display Panel, PDP) and organic EL (Organic Electro-Luminescence: OEL or organic EL) and other display devices, or used It is used as a back sticker for self-adhesive, tape, analgesic ointment and rheumatism ointment to prevent the protective film of the above items or the above items from sticking together. The release film is usually composed of a silicon-based or fluorine-based release resin coated on one or both sides of the film substrate.

[0003] In recent years, with the development of large-size and high-precision display equipment, the quality requirements of the release film have become higher and higher, which is mainly reflected in the nee...

Claims

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