CN102338891A - Protection film of optical membrane - Google Patents
Protection film of optical membrane Download PDFInfo
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- CN102338891A CN102338891A CN2010102313356A CN201010231335A CN102338891A CN 102338891 A CN102338891 A CN 102338891A CN 2010102313356 A CN2010102313356 A CN 2010102313356A CN 201010231335 A CN201010231335 A CN 201010231335A CN 102338891 A CN102338891 A CN 102338891A
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- diaphragm
- adhesion layer
- blooming piece
- polyalkenes
- layer
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Abstract
The invention discloses a protection film of an optical membrane, which is used in a backlight module of a planar liquid crystal display. The protection film is mainly provided with a non-adhesion layer and an adhesion layer; both the non-adhesion layer and the adhesion layer are made of more than two polyolefin materials, polyolefin elastomers or vinyl acetate materials; and the materials are extruded via an extruder after dosing. After being shaped, the protection film is immediately cooled and tempered so that the stability of the size of the protection film can be ensured at different temperatures.
Description
Technical field
The present invention is relevant a kind of diaphragm, instigates especially to be used for the extensively diaphragm structure of the blooming piece of employing of flat liquid crystal display backlight module institute.
Background technology
Press; The transportation of existing blooming piece, electronic component or processing usually all can be with the state of part with the sheet packing, and in transportation in order to prevent that part is by scratch or contaminated; The diaphragm on surface is used very widely; This blooming piece must use the diaphragm that clean level reaches optical grade, and the surface of blooming piece is provided with numerous optical microstructures in manufacturing process; Can effectively increase the briliancy of LCD by these microstructures; This blooming piece must use the diaphragm that clean level reaches optical grade in manufacturing process, could protect the microstructure of these blooming pieces and the yield of product effectively, and diaphragm is mainly in the process of blooming piece production, processing and assembling; Can protect blooming piece, produce damage with the tow sides of avoiding fragile blooming piece.And the present employed diaphragm of optics rib diaphragm adopts the two-way stretched PTFE film of polypropylene (BOPP Film) more, and on this stretched PTFE film, is coated with last layer acryl (PMMA) but glue or thermoplastics type (Thermal plastic) glue, because the adhesion layer of this coating is low molecule; So the tack strength scope is big, and is widely used, yet; This kind diaphragm must with an organic solvent be applied to non-adhesion layer with glue-line when making, this processing procedure is not the environmental protection processing procedure; Can produce peculiar smell, and must process to remove organic solvent by secondary baking, therefore cause the increase of cost; In addition, the micro-structure surface at blooming piece causes cull and dirty the wound easily, and when dyestripping, also can produce higher static and then make this blooming piece be applied to backlight module the time; It is not good to have the image quality taste, the harmful effect that causes fraction defective to improve.
Because the diaphragm of convention has above-mentioned disappearance, be with, how to develop one with low costly, and can protect the protected level diaphragm of microstructure and non-structural plane on the blooming piece really, be the problem place that at present relevant dealer demands urgently overcoming.
Summary of the invention
Major technique means of the present invention, a kind of diaphragm of blooming piece, this diaphragm its main tool one non-adhesion layer and an adhesion layer; This non-adhesion layer and adhesion layer constitute with polyalkenes material or thermoplastic rubber material, and this material process batching back is by the extruder extrusion, wherein; This diaphragm immediately through the processing procedure of supercooling and tempering, makes diaphragm can in the different temperatures environment, guarantee the stability of this size after moulding; In addition; This non-adhesion layer and adhesion layer need not be coated with the processing adhesion layer separately and leave the shape material, by this can not need use solvent and secondary processing, and then can reach the processing procedure of environmental protection and energy saving and the effect that reduces manufacturing cost.
An of the present invention technological means is that a kind of diaphragm of blooming piece is being provided, this diaphragm its main tool one non-adhesion layer and an adhesion layer; This non-adhesion layer and adhesion layer constitute with polyalkenes material or thermoplastic rubber material; By the extruder extrusion, wherein, the integral thickness scope of this diaphragm is 20 μ m～100 μ m to this material through the batching back; And the thickness range of adhesion layer is 3 μ m～97 μ m; When the adhesion layer of this diaphragm is contacted with blooming piece microstructure surperficial, can produce local deformation, and the degree of depth of adhesion layer distortion can be less than the thickness of adhesion layer; And the width of distortion can reach the effect that promotes the attaching yield and be easy to remove by this greater than the width of microstructure.
Another technological means of the present invention is that a kind of diaphragm of blooming piece is being provided, this diaphragm its main tool one non-adhesion layer and an adhesion layer; This non-adhesion layer and adhesion layer constitute with two or more polyalkenes materials or vinyl acetate class material, and by the extruder extrusion, this diaphragm is after moulding through the batching back for this material; Through the processing procedure of supercooling and tempering, make diaphragm can in the different temperatures environment, guarantee the stability of this size, wherein immediately; The integral thickness of this diaphragm is 40 μ m～100 μ m, and the thickness range of this non-adhesion layer is 4 μ m～90 μ m, and it accounts for the integral thickness ratio is 10%～90%; Made with the polyalkenes raw material, and the thickness range of adhesion layer is 4 μ m～90 μ mm, it accounts for the integral thickness ratio is 10%～90%; Made with vinyl acetate; And this adhesion layer is 1～10g/25mm (JIS-Z-0237) for the adhesion of the non-structural plane of blooming piece, can avoid producing the cull phenomenon by this, and can reach the processing procedure of environmental protection and energy saving and the effect that reduces manufacturing cost.
A technological means more of the present invention; Be that a kind of diaphragm of blooming piece is being provided, this diaphragm its main tool one non-adhesion layer and an adhesion layer, this non-adhesion layer and adhesion layer constitute with polyalkenes material or thermoplastic rubber material; This material process batching back is by the extruder extrusion; Wherein, non-adhesion layer more includes a middle layer and a superficial layer, and can add in this middle layer antistatic agent with (or) coloured tygon; Can reach the generation that can prevent static when removing diaphragm by this, and utilize the identity of color as diaphragm.
Description of drawings
The synoptic diagram of Fig. 1 diaphragm of the present invention;
Fig. 2 diaphragm of the present invention is applied to the synoptic diagram of blooming piece microstructure face;
The synoptic diagram of Fig. 3 another embodiment of diaphragm of the present invention;
Fig. 4 diaphragm of the present invention is applied to the synoptic diagram of the non-microstructure face of optics matrix.
[figure number explanation]
1 diaphragm, 11 non-adhesion layer 111 superficial layers
112 middle layers, 12 adhesion layers
2 blooming pieces, 21 microstructure faces, 22 non-microstructure faces
3 diaphragms, 31 non-adhesion layer 311 superficial layers
312 middle layers, 32 adhesion layers
Embodiment
At first, see also shown in Figure 1ly, diaphragm 1 of the present invention includes a non-adhesion layer 11 and an adhesion layer 12 at least.This non-adhesion layer 11 includes a superficial layer 111 and a middle layer 112; Wherein, The material of this non-adhesion layer 11 is formed by two or more polyalkenes macromolecular materials; The molecular weight of this kind polyalkenes macromolecular material is between 1000～100000, and its proportional range is by between 1: 1～1: 100.And but the material of adhesion layer 12 is constituted by polyalkenes macromolecular material and thermoplastic rubber material; This polyalkenes macromolecular material molecular weight is between 10000～100000; But the molecular weight that is somebody's turn to do thermoplastic is then between 50000～200000; Wherein, but should contain ring benzene polyalkenes macromolecular material by thermoplastic, but the content of this ring benzene polyalkenes macromolecular material accounts for 5%～45% in the thermoplastic rubber material.Above-mentioned material is through behind the feed proportioning system, can be by the extruder extrusion, and conflux in the die head of extruder and to be integral; After diaphragm 1 was shaped, the extrusion that all is shaped simultaneously of its non-adhesion layer 11 and adhesion layer 12 finished, and need not be coated with processing adhesion layer and separated type material layer separately; And after this diaphragm 1 is shaped through the die head extrusion, immediately through supercooling and tempering manufacturing process, by this; Can guarantee under different temperatures, the stability of this diaphragm 1 size, and when being wound into coiled strip; Make its Tension Control through different phase, to guarantee good coiled strip uncoiling characteristic, the integral thickness scope of the diaphragm 1 after the shaping is 20 μ m～100 μ m; Adhesion layer 12 thickness ranges are 3 μ m～97 μ m, and the thickness range of this non-adhesion layer 11 is 97 μ m～3 μ m, but not the thickness proportion in the superficial layer 111 of adhesion layer 11 and middle layer 112 is between 1: 1～1: 100; Wherein, the surfaceness of this superficial layer 111 is greater than the surfaceness of adhesion layer 12, and between 0.1 μ m～2.0 μ m (JIS-K-7125); And the optics haze value of diaphragm 1 (Haze, %) (JIS-K-7105) is between 10%～80%.
Diaphragm of the present invention sees also shown in Figure 2ly when implementing, and is the surface that the adhesion layer 12 of diaphragm 1 is sticked in blooming piece 2 tool microstructures 21, and wherein, the adhesion of this adhesion layer 12 is 2～10N/25mm (JIS-Z-0237) to the adhesion on PC surface; And be 2～20g/25mm to the pulling force that sticks together of blooming piece 2 surface micro-structures 21; In addition, when diaphragm 1 is attached at blooming piece 2 microstructures 21 surperficial, when adhesion layer 12 surfaces of diaphragm 1 are contacted with microstructure 21 surperficial; Have the characteristic of local deformation; And have the characteristic of local deformation along with the external form of microstructure 21 morphologies, and the degree of depth of its distortion is less than the thickness of this adhesion layer 12, and the width of its distortion is greater than the width of blooming piece 2 microstructures 21; And after diaphragm 1 removes, can form of short duration local deformation characteristic on the surface of diaphragm 1 adhesion layer 12.
See also shown in Figure 3ly again, be another embodiment of the present invention, this diaphragm 3 includes a non-adhesion layer 31 and an adhesion layer 32 at least; It mainly is made up of high molecular polymer or thermoplastic rubber material, and this material can be by the extruder extrusion through behind the feed proportioning system; And conflux in the die head of extruder and to be integral, after diaphragm 3 was shaped, the extrusion that all is shaped simultaneously of its non-adhesion layer 31 and adhesion layer 32 finished; And need not be coated with processing adhesion layer and separated type material layer separately, and after these diaphragm 3 process die head extrusions shapings, immediately through supercooling and tempering manufacturing process; By this, can guarantee under different temperatures the stability of these diaphragm 3 sizes; And when being wound into coiled strip, make its Tension Control through different phase, to guarantee good coiled strip uncoiling characteristic; Wherein, This non-adhesion layer 31 includes a superficial layer 311 and a middle layer 312, and the material of this non-adhesion layer 31 formed by two or more polyalkenes macromolecular materials, and this kind polyalkenes macromolecular material can be PE system type; Like LDPE (low density polyethylene), MDPE (medium density polyethylene), H DPE (high density polyethylene), LLDPE (linear low density polyethylene) or be PP class such as Random PP (copolymerization at random), Block PP (block copolymerization) or this above-mentioned mixing raw materials; Its molecular weight is between 1000～100000, and its proportional range is by between 1: 1～1: 100, and its density (g/cm
3) at 0.85～0.97g/cm
3Between; The rigidity body frame structure that this middle layer 312 is this diaphragm 1; And the ratio that middle layer 312 accounts for diaphragm 1 integral thickness is 10%～90%; This middle layer 312 is made with the polyalkenes raw material, and this polyalkenes can be PE system type, like LDPE (low density polyethylene), MDPE (medium density polyethylene), HDPE (high density polyethylene), LLDPE (linear low density polyethylene) or can be PP class such as Random PP (copolymerization at random), Block PP (block copolymerization) or this above-mentioned mixing raw materials; Its molecular weight is between 1000～100000; Wherein, this middle layer 312 be can add antistatic agent with (or) coloured PE, the fusion flow velocity (MFR) of this PE 1～20 (g/10min) in the time of 200 ℃.And the material of adhesion layer 32 is the acetic acid tygon, the poly molecular weight of this acetic acid between 10000～120000, but molecular weight that should thermoplastic then between 5000～200000, its density (g/cm
3) at 0.90～0.96g/cm
3Between, wherein, the content ratio of this acetic acid content in the acetic acid tygon is between 5%～30%, and this adhesion layer 32 can be PO (polyalkenes material) when implementing, and its molecular weight is between 1000～100000, and density (g/cm
3) at 0.80～1g/cm
3Between; And visual demand is added the height that the polyalkenes macromolecular material is adjusted adhesion; This polyalkenes macromolecular material can be 0%～99% in the adding proportion of adhesion layer 32; In addition, more can add PE or tackifier (rosin ester resin, hydrocarbon resinoid or vinyl resin) in this adhesion layer 32, the blending ratio of this PE or tackifier can be adjusted into 1: 1～1: 100 on demand.This diaphragm 3 is when implementing, and this adhesion layer 32, middle layer 312 and superficial layer 311 combine with the processing procedure of giving as security altogether, and the optics haze value of this diaphragm 3 (Haze, %) (JIS-K-7105) is between 5%～60%.
Effect of the present invention is; Constitute with polyalkenes material or thermoplastic rubber material by the non-adhesion layer 11 of this diaphragm 1 and adhesion layer 12, this material through the batching back by behind the extruder extrusion molding, immediately through the processing procedure of supercooling and tempering; By this; Can make diaphragm 1 can in the different temperatures environment, guarantee the stability of this size, in addition, this non-adhesion layer 11 and adhesion layer 12 need not be coated with the processing adhesion layer separately and leave the shape material; Use solvent and secondary processing and can save, and then can reach the processing procedure of environmental protection and energy saving and the effect that reduces manufacturing cost; In addition; Whole back degree scope by this diaphragm 1 is 20 μ m～100 μ m, and the thickness range of adhesion layer 12 is 3 μ m～97 μ m, when the adhesion layer 12 of this diaphragm 1 is contacted with blooming piece 2 microstructures 21 surperficial; Can produce local deformation; And the degree of depth of adhesion layer 12 distortion can be less than the thickness of adhesion layer 12, and the width of distortion promotes the effect that attaches yield and be easy to remove greater than the width of microstructure 21 to reach.In addition, by constituting a non-adhesion layer 31 and an adhesion layer 32 with two or more polyalkenes materials or thermoplastic rubber material, this material process batching back is by the extruder extrusion; This diaphragm 3 is after moulding, immediately through the processing procedure of supercooling and tempering, by this; Make this diaphragm 3 can in the different temperatures environment, guarantee the stability of this size; And this non-adhesion layer 31 accounts for the integral thickness ratio is 10%～90% made with the polyalkenes raw material, is 10%～90% and adhesion layer 32 accounts for the integral thickness ratio, made with vinyl acetate; And this adhesion layer 32 is maintained between 1～10g/25mm for the adhesion of the non-structural plane 22 of blooming piece 2; So can avoid producing the cull phenomenon, and can reach the processing procedure of environmental protection and energy saving and the effect that reduces manufacturing cost, in addition; This non-adhesion layer 31 more includes a middle layer 312 and a superficial layer 311; And this middle layer 312 can add antistatic agent with (or) coloured tygon, can reach the generation that can reduce static when removing diaphragm 3 by this, and utilize the identity of color as diaphragm 3.
Claims (24)
1. the diaphragm of a blooming piece is characterized in that, includes at least:
One non-adhesion layer is formed with two or more polyalkenes macromolecular materials, and the molecular weight of this polyalkenes macromolecular material is between 1000～100000, and proportional range is by between 1: 1～1: 100;
One adhesion layer; But, polyalkenes macromolecular material and thermoplastic rubber material formed by being consisted of the polyalkenes material; The molecular weight of this polyalkenes macromolecular material is between 1000～100000; But be somebody's turn to do thermoplastic rubber material molecule amount between 50000～200000, but and should contain ring benzene polyalkenes macromolecular material by the thermoplastic rubber material.
2. the diaphragm of blooming piece as claimed in claim 1 is characterized in that, but this ring benzene polyalkenes macromolecular material accounts for 5%～45% of thermoplastic rubber material.
3. the diaphragm of blooming piece as claimed in claim 1 is characterized in that, this non-adhesion layer includes a superficial layer and a middle layer.
4. the diaphragm of blooming piece as claimed in claim 1 is characterized in that, this adhesion layer is 2～10N/25mm to PC surface mount power.
5. the diaphragm of blooming piece as claimed in claim 1 is characterized in that, the integral thickness scope of this diaphragm is 20 μ m～100 μ m.
6. the diaphragm of blooming piece as claimed in claim 1 is characterized in that, this adhesion layer thickness range is 3 μ m～97 μ m.
7. the diaphragm of blooming piece as claimed in claim 1 is characterized in that, the thickness range of this non-adhesion layer is 97 μ m～3 μ m.
8. the diaphragm of blooming piece as claimed in claim 3 is characterized in that, the thickness proportion in this superficial layer and middle layer is between 1: 1～1: 100.
9. the diaphragm of blooming piece as claimed in claim 3 is characterized in that, the surfaceness of this superficial layer is greater than the surfaceness of adhesion layer, and between 0.1 μ m～2.0 μ m.
10. the diaphragm of blooming piece as claimed in claim 1 is characterized in that, (Haze is %) between 10%～80% for the optics haze value of this diaphragm.
11. the diaphragm of a blooming piece is characterized in that, the surface of this blooming piece is provided with numerous microstructures, and this diaphragm has a non-adhesion layer and an adhesion layer, and this non-adhesion layer is formed with two or more polyalkenes macromolecular materials; And but adhesion layer is consisted of the polyalkenes material by polyalkenes macromolecular material and thermoplastic rubber material and is formed; Wherein, When this diaphragm was attached at the micro-structure surface of blooming piece, the adhesion layer of this diaphragm can produce local deformation along with the geometric shape of micro-structure surface.
12. the diaphragm of blooming piece as claimed in claim 11 is characterized in that, this adhesion layer is 2～20g/25mm to the pulling force that sticks together of blooming piece microstructure face.
13. the diaphragm of blooming piece as claimed in claim 11 is characterized in that, the deforming depth of this adhesion layer is less than the thickness of adhesion layer.
14. the diaphragm of blooming piece as claimed in claim 11 is characterized in that, the distortion width of this adhesion layer is greater than the width of microstructure.
15. the diaphragm that blooming piece is used is characterized in that, this diaphragm includes at least:
One non-adhesion layer is processed with two or more polyalkenes macromolecular materials,
One adhesion layer, vinyl polymer material that this adhesion layer is two or more or thermoplastic rubber material constitute,
Wherein, The integral thickness of this diaphragm is 30 μ m～100 μ m; The thickness range of this non-adhesion layer is 90 μ m～4 μ m, and it accounts for the integral thickness ratio is 10%～90%, and the thickness range of adhesion layer is 4 μ m～90 μ mm; It accounts for the integral thickness ratio is 10%～90%, and this adhesion layer is 1～10g/25mm for the adhesion of the non-structural plane of blooming piece.
16. the diaphragm that blooming piece as claimed in claim 15 is used is characterized in that, the optics haze value (Haze) of this diaphragm is between 5%～60%.
17. the diaphragm that blooming piece as claimed in claim 15 is used is characterized in that, this non-adhesion layer includes a superficial layer and a middle layer.
18. the diaphragm that blooming piece as claimed in claim 17 is used is characterized in that, this middle layer is to add coloured PE.
19. the diaphragm that blooming piece as claimed in claim 18 is used is characterized in that, the fusion flow velocity of this PE under 190 ℃/2.16Kg is 1～20 (g/10min).
20. the diaphragm that blooming piece as claimed in claim 17 is used is characterized in that, antistatic agent can be added in this middle layer.
21. the diaphragm that blooming piece as claimed in claim 15 is used is characterized in that, the molecular weight of the polyalkenes macromolecular material of non-adhesion layer is between 1000～100000, and its proportional range is between 1: 1～1: 100, and density is 0.85～0.97g/cm
3Between.
22. the diaphragm that blooming piece as claimed in claim 15 is used is characterized in that, the vinyl polymer material of this adhesion layer is the acetic acid tygon, and its molecular weight is between 10000～120000, and density is at 0.90～0.96g/cm
3Between.
23. the diaphragm that blooming piece as claimed in claim 22 is used is characterized in that, the acetic acid content ratio in this acetic acid tygon is between 5～30%.
24. the diaphragm that blooming piece as claimed in claim 15 is used is characterized in that, but the vinyl polymer material of this adhesion layer is a polyolefin, its molecular weight is between 1000～100000, and density is at 0.80～1g/cm
3Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010231335.6A CN102338891B (en) | 2010-07-20 | 2010-07-20 | The diaphragm of blooming piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010231335.6A CN102338891B (en) | 2010-07-20 | 2010-07-20 | The diaphragm of blooming piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102338891A true CN102338891A (en) | 2012-02-01 |
| CN102338891B CN102338891B (en) | 2016-03-16 |
Family
ID=45514718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010231335.6A Active CN102338891B (en) | 2010-07-20 | 2010-07-20 | The diaphragm of blooming piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102338891B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267880A (en) * | 2016-12-30 | 2018-07-10 | 住华科技股份有限公司 | Optical film assembly and use thereof |
| CN112552835A (en) * | 2020-11-28 | 2021-03-26 | 浙江华清包装材料有限公司 | Light bright self-adhesion type environmental protection film |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06279742A (en) * | 1993-03-26 | 1994-10-04 | Sekisui Chem Co Ltd | Surface protection film |
| CN1760564A (en) * | 2004-10-13 | 2006-04-19 | 日东电工株式会社 | Impact-absorbing sheet |
| CN1950954A (en) * | 2004-02-17 | 2007-04-18 | 太阳能屋顶系统公司 | Photovoltaic system and method of making same |
-
2010
- 2010-07-20 CN CN201010231335.6A patent/CN102338891B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06279742A (en) * | 1993-03-26 | 1994-10-04 | Sekisui Chem Co Ltd | Surface protection film |
| CN1950954A (en) * | 2004-02-17 | 2007-04-18 | 太阳能屋顶系统公司 | Photovoltaic system and method of making same |
| CN1760564A (en) * | 2004-10-13 | 2006-04-19 | 日东电工株式会社 | Impact-absorbing sheet |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267880A (en) * | 2016-12-30 | 2018-07-10 | 住华科技股份有限公司 | Optical film assembly and use thereof |
| CN112552835A (en) * | 2020-11-28 | 2021-03-26 | 浙江华清包装材料有限公司 | Light bright self-adhesion type environmental protection film |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102338891B (en) | 2016-03-16 |
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