CN106019422A

CN106019422A - Optical release film

Info

Publication number: CN106019422A
Application number: CN201610534412.2A
Authority: CN
Inventors: 施克炜; 陈晓东
Original assignee: Anhui Optical Film Material Engineering Research Institute Co Ltd
Current assignee: Anhui Optical Film Material Engineering Research Institute Co Ltd
Priority date: 2016-07-08
Filing date: 2016-07-08
Publication date: 2016-10-12

Abstract

Disclosed is an optical release film characterized by comprising an optical base film coated with an isolation coating layer for blocking the migration of ultraviolet light and harmful substances and a release layer coated on the isolation coating layer. The optical release film provided by the invention can effectively block the injection of ultraviolet rays, effectively block the migration of harmful substances, reduce the storage requirements of a product and ensure the normal use of an optical product while maintaining the traditional performances of a release film.

Description

A kind of optical release liner

Technical field

The present invention relates to optical material field, particularly relate to a kind of optical release liner.

Background technology

In prior art, optical release liner is all to be coated with response type silicone-based materials on film substrate surface, Then traditional mould release membrance is made.And along with constantly furtheing investigate in optical cement field, optical articles is to light The requirement restriction learning glue becomes increasingly harsher, the mould release membrance used such as ultraviolet secondary solidification glue product, just Need to avoid the irradiation of storing process middle-ultraviolet lamp, otherwise impact is used.And if Product transport or deposit Encroached on by hot and humid environment during storage, the harmful substance within thin film can be caused to move to be protected The glue surface protected, causes optical articles performance bad, affects the normal use of product.

Summary of the invention

Because the drawbacks described above of prior art, the technical problem to be solved is to provide a kind of new Type optical release liner, under keeping tradition mould release membrance performance, it is also possible to effectively intercepts injecting of ultraviolet, And can effectively intercept the migration of harmful substance, reduce the storage of product and use requirement, it is ensured that optical articles Normal use.

For achieving the above object, the invention provides a kind of optical release liner, including optics basement membrane, described Optics basement membrane upper surface is coated with one layer and is used for intercepting ultraviolet and the barrier coat of harmful substance migration, in resistance One layer of release layer it is coated with in coating.

Preferably, described optics basement membrane lower surface is also coated with one layer of described barrier coat.According to actual needs, One layer of barrier coat can also be further added by, in terms of two, intercept ultraviolet irradiation and obstruct harmful substance moves Move.

Preferably, described barrier coat material includes resin material and ultraviolet isolating material, described resin Material is epoxylite, polyester resin, acrylic resin, polyurethane based resin, silicone Resin or organic fluorinated silicone resinoid.The obstruct of ultraviolet is realized, then by introducing ultraviolet isolating material It is mixed into the resin material of high-crosslinking-degree, utilizes the space structure after its crosslinking can intercept harmful substance Migrate.

Preferably, described ultraviolet isolating material be salicylate compounds, benzophenone compound, Benzotriazole compound, group-substituted acrylonitrile compound, compound in triazine class or aliphatic polybasic alcohols Compound.

Preferably, described optics basement membrane is PET film, PE thin film, PP thin film, PC thin film, PMMA Thin film or TAC film, thickness is 2～300 microns.

Preferably, described release layer material is silicone or organic fluorinated silicone class mould release.

The method have the advantages that

The present invention is coated with by introducing the obstruct that can intercept ultraviolet and harmful substance migration on optics basement membrane Layer, on the premise of ensureing basic mould release membrance performance, also has the incidence effectively intercepting ultraviolet, and prevents Only issuable harmful substance migrates affects protected glue surface, so can guarantee that the normal of optical articles Use, also reduce mould release membrance transport and storage, the environmental requirement of optical articles use, to a certain extent Reduce each link cost.

Accompanying drawing explanation

Fig. 1 is the optical release liner structural representation of a preferred embodiment of the present invention；

Fig. 2 is the optical release liner structural representation of another preferred embodiment of the present invention；

In figure, 101 is optics basement membrane, and 102 is barrier coat, and 103 is release layer.

Detailed description of the invention

The optical release liner of structure as shown in Figure 1, including optics basement membrane 101, optics basement membrane 101 is PET The thin film such as thin film, PE thin film, PP thin film, PC thin film, PMMA thin film or TAC film, thickness is 2～300 Micron.It is coated with one layer for intercepting ultraviolet and the resistance of harmful substance migration at optics basement membrane 101 upper surface Every coating 102, the material of barrier coat 102 is by by resin material and ultraviolet isolating material mixing system Becoming, wherein resin material is epoxylite, polyester resin, acrylic resin, polyurethanes tree Fat, silicone resin or organic fluorinated silicone resinoid, by controlling the crosslinking degree of above-mentioned resin, utilize The space structure of high-crosslinking-degree resin, it is achieved the obstruct migrating harmful substance, certainly, other possesses this The resin of 26S Proteasome Structure and Function can also replace use.And ultraviolet isolating material can be salicylate class Compound, benzophenone compound, benzotriazole compound, group-substituted acrylonitrile compound, triazine Compounds, aliphatic polybasic alcohol compound or other have intercept ultraviolet material.It is coated with intercepting Being coated with one layer of release layer 103 on layer 102, mould release is silicone or organic fluorinated silicone class mould release, has Machine silicon class mould release is applicable to acrylic compounds, epoxies, polyurethanes, rubber-like, organic fluorinated silicone class from Type agent is the most additionally applicable to organic silica gel..In order to more preferably realize the obstruct to ultraviolet and harmful substance, root According to actually used needs, it is also possible to the lower surface at optics basement membrane 101 is coated one layer of above-mentioned barrier coat 102, as shown in Figure 2.

It is described further below with reference to specific embodiment, to be fully understood from the purpose of the present invention, spy Seek peace effect.

Embodiment 1

As it is shown in figure 1, optics basement membrane uses the PE thin film of 20 microns, barrier coat uses acrylic resin Adding salicylate compounds, release layer uses the silicone release agent of blue star, products obtained therefrom test knot Fruit is as shown in table 1.

Table 1

Test event	Test value
		Total thickness	22μm
Off-type force	5g/in
		Rate of absorbing UV	85%
Harmful substance separates out and reduces	76%

Embodiment 2

As it is shown in figure 1, optics basement membrane uses the PET film originating from east material of 100 microns, barrier coat is adopted Add the mixing material of benzophenone and salicylate compounds with modified organic silicone resin, release layer is adopted With the silicone release agent of DOW CORNING, products obtained therefrom test result is as shown in table 2.

Table 2

Test event	Test value
		Total thickness	103μm
Off-type force	8g/in
		Rate of absorbing UV	92%
Harmful substance separates out and reduces	83%

Embodiment 3

As it is shown in figure 1, optics basement membrane uses the PC thin film of 250 microns, barrier coat uses polyester resin to add Adding benzotriazole compound, release layer uses the silicone release agent of SHIN-ETSU HANTOTAI, products obtained therefrom test result As shown in table 3.

Table 3

Test event	Test value
		Total thickness	253μm
Off-type force	10g/in
		Rate of absorbing UV	85%
Harmful substance separates out and reduces	78%

Embodiment 4

As it is shown in figure 1, optics basement membrane uses the PET film originating from east material of 75 microns, barrier coat uses Polyester resin adds salicylate compounds, and release layer uses the Organic fluoride mould release of SHIN-ETSU HANTOTAI, gained Product test result is as shown in table 4.

Table 4

Test event	Test value
		Total thickness	80μm
Off-type force	10g/in
		Rate of absorbing UV	83%
Harmful substance separates out and reduces	79%

Comparative example 1

As it is shown in figure 1, optics basement membrane uses the PET film originating from east material of 75 microns, release layer uses letter Organic fluoride mould release more, adds ultraviolet absorber in mould release, products obtained therefrom test result is as shown in table 5.

Table 5

Test event	Test value
		Total thickness	80μm
Off-type force	10g/in
		Rate of absorbing UV	75%
Harmful substance separates out and reduces	1%

The preferred embodiment of the present invention described in detail above.Should be appreciated that the common skill of this area Art personnel just can make many modifications and variations according to the design of the present invention without creative work.Therefore, All technical staff in the art are divided by logic the most on the basis of existing technology Analysis, reasoning or the available technical scheme of limited experiment, all should be defined in the patent claims Protection domain in.

Claims

1. an optical release liner, it is characterised in that include optics basement membrane (101), described optics basement membrane (101) Upper surface is coated with one layer and is used for intercepting ultraviolet and the barrier coat (102) of harmful substance migration, is intercepting Coating (102) one layer of release layer (103) of upper coating.

2. optical release liner as claimed in claim 1, it is characterised in that under described optics basement membrane (101) Surface is also coated with one layer of described barrier coat (102).

3. optical release liner as claimed in claim 2, it is characterised in that described barrier coat (102) material Material includes resin material and ultraviolet isolating material, and described resin material is epoxylite, polyesters tree Fat, acrylic resin, polyurethane based resin, silicone resin or organic fluorinated silicone resinoid.

4. optical release liner as claimed in claim 3, it is characterised in that described ultraviolet isolating material is Salicylate compounds, benzophenone compound, benzotriazole compound, group-substituted acrylonitrile Compound, compound in triazine class or aliphatic polybasic alcohol compound.

5. optical release liner as claimed in claim 1, it is characterised in that described optics basement membrane (101) is PET film, PE thin film, PP thin film, PC thin film, PMMA thin film or TAC film, thickness is 2～300 microns.

6. optical release liner as claimed in claim 1, it is characterised in that described release layer (103) material For silicone or organic fluorinated silicone class mould release.