CN108047985A - A kind of special ultralight release films of OCA - Google Patents
A kind of special ultralight release films of OCA Download PDFInfo
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- CN108047985A CN108047985A CN201711311043.1A CN201711311043A CN108047985A CN 108047985 A CN108047985 A CN 108047985A CN 201711311043 A CN201711311043 A CN 201711311043A CN 108047985 A CN108047985 A CN 108047985A
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- release
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- oca
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Abstract
The invention discloses a kind of special ultralight release films of OCA, successively including substrate layer and grid release layer；The substrate layer is any one in PET film, PP films or PE films；The grid release layer includes release film and mould release, and square, the grid pattern of diamond shape or floating-point is distributed in the surface of the release film.The present invention can reduce cost, simplify technique, easy to implement, have broad application prospects.
Description
Technical field
The present invention relates to technology field of membrane materials more particularly to a kind of special ultralight release films of OCA.
Background technology
OCA (Optically Clear Adhesive) is a kind of spy for being used for cementing transparent optical element (such as camera lens)
Kind adhesive, is one of important raw material of touch-screen.OCA optical cements can be applied to different fields according to thickness difference,
Its main application is：Electronic Paper, transparent devices bonding, projection screen assembling, aerospace or military optical device assembling, display
Assembling, lens assembling, resistive touch screen G+F+F, F+F, capacitive touch screen, panel, ICON and glass and polycarbonate
The fitting for waiting plastic materials and the special adhesive for cementing transparent optical element (such as camera lens).Its primary structure is
Optics acrylic glue is made into no base material, is then respectively bonded one layer of release film in upper and lower bottom.Release film refers to film surface energy
There are the film of differentiation, release film not to have viscosity or slight viscosity after being contacted under limited conditions with specific material.
Patent CN205836116U discloses a kind of special ultralight release films of OCA, overcomes the special release films of existing OCA and exists
High-volume is using the shortcomings that there are heavier, transport is inconvenient, and using effect is inconvenient during transport, but this structure is extremely complex, amount
It is very low to produce possibility.Existing OCA with light face release film in industrialized production since OCA colloids are softer, easy excessive glue, thus
Hot weather causes to remove difficult in use, light film easily draws glue.Simultaneously as much application needs segment difference fillibility to OCA,
So colloid design is universal softer, and existing OCA is mostly cured with release film using heat cure mode, is cured compared to UV release
Film, heat cure release film release layer is softer, is soft to soft stripping in OCA release film stripping processes, so can there is strippings
From difficult situation.In addition, at present when TP products are bonded, release film is more smooth, entirely in closed structure, OCA and glass
Or the problems such as bubble is not easy to discharge easily is generated during ito film fitting, thus tend to causing product is secondary to do over again or report
It is useless, substantial amounts of manpower and material resources are wasted, increase the cost of product, can not effectively promote production capacity.Release film scoring resistance
It is poor, scuffing is be easy to cause during winding and client's use, influences the appearance test to OCA.Furthermore now use from
Type film is mostly the aqueous release film produced on the solvent-borne type release film or line produced under line, the solvent-borne type release film produced under line
Due to the silicon metallic catalyst such as platinum to be used, so production cost is higher, and solidification temperature higher (130 DEG C or more) is easy
Cause hot wrinkle, influence product beauty, the aqueous release film produced on line there is the shortcomings of poor solvent resistance, if so from
Coating solvent type OCA on type film, there is difficult great risk is removed caused by desiliconization for meeting.
The content of the invention
In view of above-mentioned defect in the prior art, the purpose of the present invention is to propose to a kind of special ultralight release films of OCA.
To achieve these goals, present invention employs following technical solutions：
A kind of special ultralight release films of OCA, successively including substrate layer and grid release layer；The substrate layer is PET film, PP
Any one in film or PE films；The grid release layer includes release film and mould release, and the surface of the release film is distributed
There is square, the grid pattern of diamond shape or floating-point, since release film is using grid pattern, release film and OCA colloid contacts area
It is smaller, it is easier to remove；More importantly using after grid pattern, colloid can generate slight grid print, and the bubble of generation can
It is squeezed by grid line to periphery until discharging.
Further, the thickness of the substrate layer is 2 μm -250 μm.
Further, the thickness of the substrate layer is 25 μm -125 μm.
Further, the mould release of the grid release layer is solid using radically curing organic crylic acid esters or cation
Change epoxy organosilicon class.
Further, the coating weight of the mould release of the grid release layer is 0.2g/m2-2.0g/m2。
Further, the coating weight of the mould release of the grid release layer is 0.5g/m2-1.2g/m2。
Further, the grid release layer is formed by curing using UV, and the UV solidification energies of the grid release layer are
100mj/cm2-500mj/cm2, the grid release layer that is formed using the cured modes of UV is highly cross-linked under UV illumination, causes
Density is very high, and release layer is very hard, soft to hard more easily peelable so compared with soft to soft stripping, along with using network,
Release film and OCA colloid contacts area are smaller, so more easily peelable；In addition, its solvent resistant, wear-resisting, anti-scratch performance and heat-resisting
It has excellent performance, has good adaptability for the technique for needing thermoforming under high temperature.
Further, the grid pattern of the grid release layer passes through with square, the intaglio plate roller coat of diamond shape or floating-point
Cloth obtains.
The present invention protrusion effect be：
A kind of special ultralight release films of OCA of the present invention, using the grid release layer of UV curing modes, solve existing
The problem of light film of the special release films of OCA easily draws glue, processing difficulties；On the other hand existing OCA and glass or ito film are solved
The problems such as bubble is not easy to discharge easily is generated during fitting, thus tend to causing product is secondary to do over again or scrap, is wasted
Substantial amounts of manpower and material resources, increase the cost of product, can not effectively promote production capacity；Again, due to cured using UV
Mode, solvent resistant is wear-resisting, and anti-scratch performance and heat resistance can be very excellent, have very for the technique for needing thermoforming under high temperature
Good adaptability.Therefore, the present invention can reduce cost, simplify technique, easy to implement, have broad application prospects.
Description of the drawings
Fig. 1 is the structure diagram of 1-4 of the embodiment of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.
Embodiment 1
As shown in Figure 1, a kind of special ultralight release films of OCA of the present embodiment, successively including substrate layer 1 and grid release layer
2；Substrate layer 1 is PET film；Grid release layer 2 includes release film and mould release, and square grid chart is distributed in the surface of release film
Shape.
Wherein, the thickness of substrate layer 1 is 2 μm.
The mould release of grid release layer 2 uses radically curing organic crylic acid esters.
The coating weight of the mould release of grid release layer 2 is 0.2g/m2。
Grid release layer 2 is formed by curing using UV, and the UV solidification energies of grid release layer 2 are 100mj/cm2。
The grid pattern of grid release layer 2 with square gravure roll by being coated with to obtain.
Embodiment 2
As shown in Figure 1, a kind of special ultralight release films of OCA of the present embodiment, successively including substrate layer 1 and grid release layer
2；Substrate layer 1 is PP films；Grid release layer 2 includes release film and mould release, and the grid chart of diamond shape is distributed in the surface of release film
Shape.
Wherein, the thickness of substrate layer 1 is 250 μm.
The mould release of grid release layer 2 uses cationic curing epoxy organosilicon class.
The coating weight of the mould release of grid release layer 2 is 2.0g/m2。
Grid release layer 2 is formed by curing using UV, and the UV solidification energies of grid release layer are 500mj/cm2。
The grid pattern of grid release layer 2 is coated with to obtain by the gravure roll with diamond shape.
Embodiment 3
As shown in Figure 1, a kind of special ultralight release films of OCA of the present embodiment, successively including substrate layer 1 and grid release layer
2；Substrate layer 1 is PE films；Grid release layer 2 includes release film and mould release, and the grid chart of floating-point is distributed in the surface of release film
Shape.
Wherein, the thickness of substrate layer 1 is 25 μm.
The mould release of grid release layer 2 uses cationic curing epoxy organosilicon class.
The coating weight of the mould release of grid release layer 2 is 0.5g/m2。
Grid release layer 2 is formed by curing using UV, and the UV solidification energies of grid release layer are 200mj/cm2。
The grid pattern of grid release layer 2 is coated with to obtain by the gravure roll with floating-point.
Embodiment 4
As shown in Figure 1, a kind of special ultralight release films of OCA of the present embodiment, successively including substrate layer 1 and grid release layer
2；Substrate layer 1 is PE films；Grid release layer 2 includes release film and mould release, and the grid chart of floating-point is distributed in the surface of release film
Shape.
Wherein, the thickness of substrate layer 1 is 125 μm.
The mould release of grid release layer 2 uses cationic curing epoxy organosilicon class.
The coating weight of the mould release of grid release layer 2 is 1.2g/m2。
Grid release layer 2 is formed by curing using UV, and the UV solidification energies of grid release layer are 500mj/cm2。
The grid pattern of grid release layer 2 is coated with to obtain by the gravure roll with floating-point.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of special ultralight release films of OCA, it is characterised in that：Include substrate layer and grid release layer successively；The substrate layer
For any one in PET film, PP films or PE films；The grid release layer includes release film and mould release, the release film
Surface square, the grid pattern of diamond shape or floating-point is distributed with.
2. a kind of special ultralight release films of OCA according to claim 1, it is characterised in that：The thickness of the substrate layer is 2
μm-250μm。
3. a kind of special ultralight release films of OCA according to claim 2, it is characterised in that：The thickness of the substrate layer is
25μm-125μm。
4. a kind of special ultralight release films of OCA according to claim 1, it is characterised in that：The grid release layer from
Type agent uses radically curing organic crylic acid esters or cationic curing epoxy organosilicon class.
5. a kind of special ultralight release films of OCA according to claim 1, it is characterised in that：The grid release layer from
The coating weight of type agent is 0.2g/m2-2.0g/m2。
6. a kind of special ultralight release films of OCA according to claim 5, it is characterised in that：The grid release layer from
The coating weight of type agent is 0.5g/m2-1.2g/m2。
7. a kind of special ultralight release films of OCA according to claim 1, it is characterised in that：The grid release layer uses
UV is formed by curing, and the UV solidification energies of the grid release layer are 100mj/cm2-500mj/cm2。
8. a kind of special ultralight release films of OCA according to claim 1, it is characterised in that：The net of the grid release layer
Trrellis diagram shape is by the way that with square, the gravure roll of diamond shape or floating-point is coated with to obtain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711311043.1A CN108047985A (en) | 2017-12-11 | 2017-12-11 | A kind of special ultralight release films of OCA |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711311043.1A CN108047985A (en) | 2017-12-11 | 2017-12-11 | A kind of special ultralight release films of OCA |
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| CN108047985A true CN108047985A (en) | 2018-05-18 |
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ID=62124106
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711311043.1A Pending CN108047985A (en) | 2017-12-11 | 2017-12-11 | A kind of special ultralight release films of OCA |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109705768A (en) * | 2018-11-29 | 2019-05-03 | 安徽荣泽科技有限公司 | A kind of pet release film manufacture craft |
| CN112210109A (en) * | 2020-10-21 | 2021-01-12 | 深圳泰得思科技有限公司 | Release film directly coated with concave-convex grain release agent and coating device thereof |
| CN113174210A (en) * | 2021-04-21 | 2021-07-27 | 武汉华星光电半导体显示技术有限公司 | Optical adhesive laminated structure and attaching method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765239A (en) * | 2012-07-12 | 2012-11-07 | 深圳市摩码科技有限公司 | Releasing film with light releasing force and manufacture method of releasing film |
| CN106273956A (en) * | 2016-07-29 | 2017-01-04 | 佛山市南海区新永泰胶粘制品有限公司 | A kind of embossing release film and processing technology thereof |
| CN206157081U (en) * | 2016-07-19 | 2017-05-10 | 东莞市纳利光学材料有限公司 | Can print from type membrane |
-
2017
- 2017-12-11 CN CN201711311043.1A patent/CN108047985A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765239A (en) * | 2012-07-12 | 2012-11-07 | 深圳市摩码科技有限公司 | Releasing film with light releasing force and manufacture method of releasing film |
| CN206157081U (en) * | 2016-07-19 | 2017-05-10 | 东莞市纳利光学材料有限公司 | Can print from type membrane |
| CN106273956A (en) * | 2016-07-29 | 2017-01-04 | 佛山市南海区新永泰胶粘制品有限公司 | A kind of embossing release film and processing technology thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109705768A (en) * | 2018-11-29 | 2019-05-03 | 安徽荣泽科技有限公司 | A kind of pet release film manufacture craft |
| CN112210109A (en) * | 2020-10-21 | 2021-01-12 | 深圳泰得思科技有限公司 | Release film directly coated with concave-convex grain release agent and coating device thereof |
| CN113174210A (en) * | 2021-04-21 | 2021-07-27 | 武汉华星光电半导体显示技术有限公司 | Optical adhesive laminated structure and attaching method thereof |
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Application publication date: 20180518 |