CN102338891B - The diaphragm of blooming piece - Google Patents
The diaphragm of blooming piece Download PDFInfo
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- CN102338891B CN102338891B CN201010231335.6A CN201010231335A CN102338891B CN 102338891 B CN102338891 B CN 102338891B CN 201010231335 A CN201010231335 A CN 201010231335A CN 102338891 B CN102338891 B CN 102338891B
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- diaphragm
- adhesion layer
- blooming piece
- layer
- polyalkenes
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Abstract
The present invention is about a kind of diaphragm being used in blooming piece in flat liquid crystal display backlight module; this diaphragm its non-adhesion layer of main tool one and an adhesion layer; this non-adhesion layer and adhesion layer are formed with two or more polyalkenes materials or polyalkenes elastic body or vinyl acetate material; this material through batching after by extruder extrusion; this diaphragm is after shaping; immediately through the processing procedure of supercooling and tempering, make diaphragm can guarantee the stability of this size in different temperatures environment.
Description
Technical field
The present invention is relevant a kind of diaphragm, is espespecially used in the diaphragm structure of the blooming piece extensively adopted in flat liquid crystal display backlight module.
Background technology
Press, existing blooming piece, the transport of electronic component or processing, usually the state all part can packed with sheet, and in order to prevent part to be scraped off or contaminated in transportation, the diaphragm on surface is used very widely in the field of blooming piece and electronic component, this blooming piece is in manufacturing process, the diaphragm that clean level reaches optical grade must be used, and the surface of blooming piece is provided with numerous optical microstructures, the briliancy of liquid crystal display effectively can be increased by these microstructures, this blooming piece must use the diaphragm that clean level reaches optical grade in manufacturing process, effectively could protect the microstructure of these blooming pieces and the yield of product, and diaphragm is mainly produced at blooming piece, in the process of processing and assembling, blooming piece can be protected, damage is produced to avoid the tow sides of fragile blooming piece.And the two-way stretched PTFE film of diaphragm many employings polypropylene (BOPPFilm) that current optics rib diaphragm uses, and on this stretched PTFE film, be coated with last layer acryl (PMMA) glue or can thermoplastics type (Thermalplastic) glue, adhesion layer due to this coating is low molecule, so tack strength scope is large, and be widely used, but, this kind of diaphragm is in time manufacturing, with an organic solvent glue-line must be applied to non-adhesion layer, this processing procedure is not environmental protection processing procedure, peculiar smell can be produced, and must process to remove organic solvent by secondary baking, therefore the increase of cost is caused, separately, easily cause cull and dirty wound at the micro-structure surface of blooming piece, and when also can produce higher electrostatic and then make this blooming piece be applied to backlight module when dyestripping, have image quality taste not good, cause the harmful effect that fraction defective improves.
Because known diaphragm has above-mentioned disappearance, therefore how to develop one with low cost, and really can protect the protected level diaphragm in microstructure and non-structural face on blooming piece, be the problem place that relevant dealer at present urgently overcomes.
Summary of the invention
Technical way of the present invention, a kind of diaphragm of blooming piece, this diaphragm its non-adhesion layer of main tool one and an adhesion layer, this non-adhesion layer and adhesion layer are formed with polyalkenes material or thermoplastic rubber material, this material through batching after by extruder extrusion, wherein, this diaphragm is after shaping, immediately through the processing procedure of supercooling and tempering, make diaphragm can guarantee the stability of this size in different temperatures environment, in addition, this non-adhesion layer and adhesion layer need not separately coating waste water adhesion layer with from shape material, can not need by this to use solvent and secondary processing, and then the processing procedure of environmental protection and energy saving can be reached and reduce effect of manufacturing cost.
An of the present invention technological means, be at the diaphragm providing a kind of blooming piece, this diaphragm its non-adhesion layer of main tool one and an adhesion layer, this non-adhesion layer and adhesion layer are formed with polyalkenes material or thermoplastic rubber material, this material through batching after by extruder extrusion, wherein, the integral thickness scope of this diaphragm is 20 μm ~ 100 μm, and the thickness range of adhesion layer is 3 μm ~ 97 μm, when the adhesion layer of this diaphragm is contacted with blooming piece microstructure surperficial, local deformation can be produced, and the degree of depth of adhesion layer distortion can be less than the thickness of adhesion layer, and the width of distortion is greater than the width of microstructure, the effect promoting and attach yield and be easy to remove can be reached by this.
Another technological means of the present invention, be at the diaphragm providing a kind of blooming piece, this diaphragm its non-adhesion layer of main tool one and an adhesion layer, this non-adhesion layer and adhesion layer are formed with two or more polyalkenes materials or vinyl acetate class material, this material through batching after by extruder extrusion, this diaphragm is after shaping, immediately through the processing procedure of supercooling and tempering, make diaphragm can guarantee the stability of this size in different temperatures environment, wherein, the integral thickness of this diaphragm is 40 μm ~ 100 μm, the thickness range of this non-adhesion layer is 4 μm ~ 90 μm, it accounts for integral thickness ratio is 10% ~ 90%, made by polyalkenes raw material, and the thickness range of adhesion layer is 4 μm ~ 90 μm m, it accounts for integral thickness ratio is 10% ~ 90%, made by vinyl acetate, and this adhesion layer is 1 ~ 10g/25mm (JIS-Z-0237) for the adhesion in the non-structural face of blooming piece, can avoid by this producing cull phenomenon, and the processing procedure of environmental protection and energy saving can be reached and reduce effect of manufacturing cost.
A technological means more of the present invention; be at the diaphragm providing a kind of blooming piece; this diaphragm its non-adhesion layer of main tool one and an adhesion layer; this non-adhesion layer and adhesion layer are formed with polyalkenes material or thermoplastic rubber material; this material through batching after by extruder extrusion; wherein; non-adhesion layer more includes a middle layer and a superficial layer; and antistatic agent and (or) coloured tygon in this middle layer, can be added; the generation that can prevent electrostatic when removing diaphragm can be reached by this, and utilize color as the identity of diaphragm.
Accompanying drawing explanation
The schematic diagram of Fig. 1 diaphragm of the present invention;
Fig. 2 diaphragm of the present invention is applied to the schematic diagram in blooming piece microstructure face;
The schematic diagram of Fig. 3 another embodiment of diaphragm of the present invention;
Fig. 4 diaphragm of the present invention is applied to the schematic diagram in the non-microstructure face of optical model sheet.
[figure number explanation]
1 diaphragm 11 non-adhesion layer 111 superficial layer
112 middle layer 12 adhesion layers
2 non-microstructure face, blooming piece 21 microstructure faces 22
3 diaphragm 31 non-adhesion layer 311 superficial layer
312 middle layer 32 adhesion layers
Embodiment
First, refer to shown in Fig. 1, diaphragm 1 of the present invention at least includes non-adhesion layer 11 and an adhesion layer 12.This non-adhesion layer 11 includes 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 of polyalkenes macromolecular material is between 1000 ~ 100000, and its proportional range is by between 1: 1 ~ 1: 100.And the material of adhesion layer 12 by polyalkenes macromolecular material with can thermoplastic rubber material be formed, this polyalkenes macromolecular material molecular weight is between 10000 ~ 100000, this can the molecular weight of thermoplastic then between 50000 ~ 200000, wherein, this can contain ring benzene polyalkenes macromolecular material in thermoplastic, and the content of this ring benzene polyalkenes macromolecular material is in accounting for 5% ~ 45% in thermoplastic rubber material.Above-mentioned material is after feed proportioning system, can by extruder extrusion, and conflux integral in the die head of extruder, after diaphragm 1 is shaped, its non-adhesion layer 11 is complete with adhesion layer 12 shaping extrusion all simultaneously, and need not coating waste water adhesion layer and separated type material layer separately, and this diaphragm 1 is after die head extrusion is shaped, immediately through supercooling and tempering manufacturing process, by this, can guarantee at different temperatures, the stability of this diaphragm 1 size, and when being wound into coiled strip, its tension force through different phase is controlled, to guarantee good coiled strip uncoiling characteristic, the integral thickness scope of the diaphragm 1 after shaping is 20 μm ~ 100 μm, adhesion layer 12 thickness range is 3 μm ~ 97 μm, the thickness range of this non-adhesion layer 11 is 97 μm ~ 3 μm, 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 μm ~ 2.0 μm (JIS-K-7125), and the Optical haze value of diaphragm 1 (Haze, %) (JIS-K-7105) is between 10% ~ 80%.
Diaphragm of the present invention is in time implementing, refer to shown in Fig. 2, be the surface adhesion layer 12 of diaphragm 1 being sticked in blooming piece 2 tool microstructure 21, 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-structure 21, in addition, when diaphragm 1 is attached at blooming piece 2 microstructure 21 surperficial, adhesion layer 12 surface contact of diaphragm 1 is when microstructure 21 surperficial, have the characteristic of local deformation, and the characteristic of local deformation is had along with the external form of microstructure 21 morphology, the degree of depth of its distortion is less than the thickness of this adhesion layer 12, the width of its distortion is greater than the width of blooming piece 2 microstructure 21, and after diaphragm 1 removes, of short duration local deformation feature can be formed on the surface of diaphragm 1 adhesion layer 12.
Refer to again shown in Fig. 3, for another embodiment of the present invention, this diaphragm 3 at least includes non-adhesion layer 31 and an adhesion layer 32, it formed primarily of high molecular polymer or thermoplastic rubber material, this material is after feed proportioning system, can by extruder extrusion, and conflux integral in the die head of extruder, after diaphragm 3 is shaped, its non-adhesion layer 31 is complete with adhesion layer 32 shaping extrusion all simultaneously, and need not coating waste water adhesion layer and separated type material layer separately, and this diaphragm 3 is after die head extrusion is shaped, immediately through supercooling and tempering manufacturing process, by this, can guarantee at different temperatures, the stability of this diaphragm 3 size, and when being wound into coiled strip, its tension force through different phase is controlled, to guarantee good coiled strip uncoiling characteristic, wherein, this non-adhesion layer 31 includes superficial layer 311 and a middle layer 312, and the material of this non-adhesion layer 31 is formed by two or more polyalkenes macromolecular materials, this kind of polyalkenes macromolecular material can be PE system class, as LDPE (Low Density Polyethylene), MDPE (medium density polyethylene), HDPE (high density polyethylene), LLDPE (linear Low Density Polyethylene), or be that PP class is as RandomPP (random copolymerization), BlockPP (block copolymerization) or this above-mentioned mixing raw materials, its molecular weight is between 1000 ~ 100000, its proportional range is by between 1: 1 ~ 1: 100, and its density (g/cm
3) at 0.85 ~ 0.97g/cm
3between, this middle layer 312 is the rigidity body frame structure of this diaphragm 1, and the ratio that middle layer 312 accounts for diaphragm 1 integral thickness is 10% ~ 90%, this middle layer 312 is with made by polyalkenes raw material, and this polyalkenes can be PE system class, as LDPE (Low Density Polyethylene), MDPE (medium density polyethylene), HDPE (high density polyethylene), LLDPE (linear Low Density Polyethylene), or can be PP class as RandomPP (random copolymerization), BlockPP (block copolymerization) or this above-mentioned mixing raw materials, its molecular weight is between 1000 ~ 100000, wherein, this middle layer 312 to add antistatic agent and (or) coloured PE, melting flow velocity (MFR) 1 ~ 20 (g/10min) 200 DEG C time of this PE.And the material of adhesion layer 32 is polyvinyl acetate, the molecular weight of this polyvinyl acetate between 10000 ~ 120000, this can the molecular weight of 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 polyvinyl acetate is between 5% ~ 30%, and this adhesion layer 32 is in time implementing, and can be PO (polyalkenes material), its molecular weight is between 1000 ~ 100000, and density (g/cm
3) at 0.80 ~ 1g/cm
3between, and visual demand adds the height that polyalkenes macromolecular material adjusts adhesion, this polyalkenes macromolecular material can be 0% ~ 99% in the adding proportion of adhesion layer 32, separately, 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 to 1: 1 ~ 1: 100 on demand.This diaphragm 3 is in time implementing, and this adhesion layer 32, middle layer 312 and superficial layer 311 are combined with the processing procedure of common signature, and the Optical haze value (Haze, %) (JIS-K-7105) of this diaphragm 3 is between 5% ~ 60%.
Diaphragm 3 of the present invention is in time applying; refer to shown in Fig. 4; include non-adhesion layer 31 and an adhesion layer 32; it is 10% ~ 90% that this adhesion layer 32 accounts for integral thickness ratio; the adhesion layer 32 of diaphragm 3 can be made by this to reach adhesion needed for blooming piece 2 non-structural face 22; be attached on the non-structural face 22 of blooming piece 2 in room temperature 25 DEG C, it is under 300mm/min peeling rate, and this adhesion is between 1 ~ 5g/25mm.
Effect of the present invention is, formed with polyalkenes material or thermoplastic rubber material by the non-adhesion layer 11 of this diaphragm 1 and adhesion layer 12, this material through batching after by extruder extrusion molding after, immediately through the processing procedure of supercooling and tempering, by this, diaphragm 1 can be made in different temperatures environment to guarantee the stability of this size, in addition, this non-adhesion layer 11 and adhesion layer 12 need not separately coating waste water adhesion layer with from shape material, and use solvent and secondary processing can be save, and then the processing procedure of environmental protection and energy saving can be reached and reduce effect of manufacturing cost; Separately; the rear degree scope of entirety by this diaphragm 1 is 20 μm ~ 100 μm; and the thickness range of adhesion layer 12 is 3 μm ~ 97 μm; when the adhesion layer 12 of this diaphragm 1 is contacted with blooming piece 2 microstructure 21 surperficial; local deformation can be produced; and the degree of depth that adhesion layer 12 is out of shape can be less than the thickness of adhesion layer 12, and the width of distortion is greater than the width of microstructure 21, to reach the effect promoting and attach yield and be easy to remove.In addition, by being formed non-adhesion layer 31 and an adhesion layer 32 with two or more polyalkenes materials or thermoplastic rubber material, this material through batching after by extruder extrusion, this diaphragm 3 is after shaping, immediately through the processing procedure of supercooling and tempering, by this, make this diaphragm 3 can guarantee the stability of this size in different temperatures environment, and this non-adhesion layer 31 accounts for integral thickness ratio for 10% ~ 90% with made by polyalkenes raw material, and adhesion layer 32 accounts for integral thickness ratio is 10% ~ 90%, made by vinyl acetate, and make this adhesion layer 32 maintain between 1 ~ 10g/25mm for the adhesion in the non-structural face 22 of blooming piece 2, so can avoid producing cull phenomenon, and the processing procedure of environmental protection and energy saving can be reached and reduce effect of manufacturing cost, in addition, this non-adhesion layer 31 more includes middle layer 312 and a superficial layer 311, and antistatic agent and (or) coloured tygon can be added in this middle layer 312, the generation that can reduce electrostatic when removing diaphragm 3 can be reached by this, and utilize color as the identity of diaphragm 3.
Claims (12)
1. a diaphragm for 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 formed with two or more polyalkenes macromolecular materials; And adhesion layer by polyalkenes macromolecular material with can thermoplastic rubber material be formed;
Wherein, when this diaphragm is 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, and the deforming depth of this adhesion layer is less than the thickness of adhesion layer, and the deformed width of this adhesion layer is greater than the width of microstructure.
2. the diaphragm of blooming piece as claimed in claim 1, it is characterized in that, the stick together pulling force of this adhesion layer to blooming piece microstructure face is 2 ~ 20g/25mm.
3. a diaphragm for blooming piece, is characterized in that, this diaphragm at least includes:
One non-adhesion layer, makes with two or more polyalkenes macromolecular materials,
One adhesion layer, the vinyl polymer material that this adhesion layer is two or more or thermoplastic rubber material are formed,
Wherein, the integral thickness of this diaphragm is 30 μm ~ 100 μm; the thickness range of this non-adhesion layer is 90 μm ~ 4 μm; it accounts for integral thickness ratio is 10% ~ 90%; and the thickness range of adhesion layer is 4 μm ~ 90 μm; it accounts for integral thickness ratio is 10% ~ 90%, and this adhesion layer is 1 ~ 10g/25mm for the adhesion in the non-structural face of blooming piece.
4. the diaphragm of blooming piece as claimed in claim 3, it is characterized in that, the Optical haze value (Haze) of this diaphragm is between 5% ~ 60%.
5. the diaphragm of blooming piece as claimed in claim 3, it is characterized in that, this non-adhesion layer includes a superficial layer and a middle layer.
6. the diaphragm of blooming piece as claimed in claim 5, it is characterized in that, coloured PE is added in this middle layer.
7. the diaphragm of blooming piece as claimed in claim 6, it is characterized in that, the melting flow velocity of this PE under 190 DEG C/2.16Kg is 1 ~ 20g/10min.
8. the diaphragm of blooming piece as claimed in claim 5, it is characterized in that, antistatic agent can be added in this middle layer.
9. the diaphragm of blooming piece as claimed in claim 3, it 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.
10. the diaphragm of blooming piece as claimed in claim 3, it is characterized in that, the vinyl polymer material of this adhesion layer is polyvinyl acetate, and its molecular weight is between 10000 ~ 120000, and density is at 0.90 ~ 0.96g/cm
3between.
The diaphragm of 11. blooming pieces as claimed in claim 10, it is characterized in that, the acetic acid content ratio in this polyvinyl acetate is between 5 ~ 30%.
The diaphragm of 12. blooming pieces as claimed in claim 3, is characterized in that, the vinyl polymer material of this adhesion layer is can polyolefin, and 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 CN102338891A (en) | 2012-02-01 |
| CN102338891B true CN102338891B (en) | 2016-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010231335.6A Active CN102338891B (en) | 2010-07-20 | 2010-07-20 | The diaphragm of blooming piece |
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| CN (1) | CN102338891B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI634008B (en) * | 2016-12-30 | 2018-09-01 | 住華科技股份有限公司 | Optical film and use of the same |
| CN112552835B (en) * | 2020-11-28 | 2022-08-26 | 浙江华清包装材料有限公司 | Light bright self-adhesion type environmental protection film |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2974533B2 (en) * | 1993-03-26 | 1999-11-10 | 積水化学工業株式会社 | 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 |
| JP4807942B2 (en) * | 2004-10-13 | 2011-11-02 | 日東電工株式会社 | Shock absorbing sheet |
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| CN102338891A (en) | 2012-02-01 |
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