CN102676087B - Adhesive-free textured film and preparation method thereof - Google Patents
Adhesive-free textured film and preparation method thereof Download PDFInfo
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- CN102676087B CN102676087B CN201210119233.4A CN201210119233A CN102676087B CN 102676087 B CN102676087 B CN 102676087B CN 201210119233 A CN201210119233 A CN 201210119233A CN 102676087 B CN102676087 B CN 102676087B
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Abstract
The invention provides a permanent antistatic adhesive-free textured film which is simple in process, meets the environment-friendly requirement and is adjustable in bonding strength and a preparation method of the permanent antistatic adhesive-free textured film. The permanent antistatic adhesive-free textured film comprises a polypropylene (PP) film and polyester (PET) release films coated on two sides of the PP film. The adhesive-free textured protective film is obtained by matching the PP as a main raw material with a polyolefin elastomer having an antistatic performance, extruding, traction, compounding, winding, cooling, stripping and splitting. The permanent antistatic adhesive-free textured film is suitable for liquid crystal displays and display screens of mobile phones and can ensure that the screens are prevented form being scratched in the transportation and use processes.
Description
Technical field
The present invention relates to a kind ofly for glue-free reticulate pattern film on liquid-crystal display, mobile phone display screen and preparation method thereof, belong to technical field of macromolecules.
Background technology
Existing liquid crystal protective film mostly has been glue protective membrane, by be coated with the pressure sensitive adhesive of one deck acrylic acid or the like on film base material surface, after oven drying, makes.In this technological process, there is solvent evaporates, contaminate environment, and easily on protected, produce residue after the protective membrane making use for some time.Also have part producer to improve it, used glue-free formula, by adding self-viscosity high-molecular polymkeric substance to realize in raw material, but its temperature sensitivity is stronger, and cohesive strength is difficult for regulating, and the film base material using is mainly PE film.The transparency of PE film need to promote compared with PP film, and PP film has more competitive edge than PE aspect cost.
In prior art, protective membrane mostly is plain weave, thereby it easily has residual air not got rid of completely and stays generation bubble between protected material and protective membrane in taping process, and protective membrane cannot ideally be developed; In transportation, the water vapour of generation is also difficult for discharging, thereby on protected, leaves water stain dirt in addition.Also there are some producers to develop reticulate protective film; solve well exhausting problem; but the reticulate pattern film reticulate pattern corner angle of preparing according to its technological process are rough; be with jagged; this just cause its not wear-resisting easily fall bits; and dust easily enters between protective membrane and protected material, after friction, easily on protected, leave scratch and stains.
Summary of the invention
The object of the invention is for existing glue-free plain weave protective membrane and the deficiency of reticulate protective film in manufacture process; a kind of glue-free reticulate pattern film and preparation method thereof is provided; this preparation method's technique is simple, meets environmental requirement, and the cohesive strength of glue-free reticulate pattern film is adjustable simultaneously.
The glue-free reticulate pattern film of described one, the polyolefin elastomer that it comprises polypropylene and has antistatic property.Described polyolefin elastomer can be one or more in propylene-based elastomeric, Polyurethane Thermoplastic Elastomer (TPU), styrene block copolymer (SEBS).
Described polypropylene and the mass ratio of polyolefin elastomer are 0.3～3:1.
The method of making described glue-free reticulate pattern film, comprises the following steps:
1), by the polypropylene of granular size 3-6mm and polyolefin elastomer particle, be mixed in proportion and add the opening for feed of extruding laminating machine;
2) compound of step 1) gained is heated to 150-250 ℃, make its fusing;
3) by step 2) the melt-blended material of gained delivers to die head moulding through forcing machine;
4) by traction, the PP film of moulding is outwards exported; Now PP film outwards rotates the PET release film of output and overlaps and travel forward with being placed in advance on laminating machine, and forming middle layer is PP film, and both sides are the laminated film of the three-decker of PET release film;
Described PP film thickness 10-80 μ m, described PET release film thickness 12-50 μ m;
5) by laminated film in step 4) through roller roll extrusion, the pressure of roll extrusion is 1-5kg/ ㎡, temperature is controlled at 0-80 ℃, make PP film laminating with PET release film together with, then rolling;
When through roller roll extrusion, the anilox roll that roller is different meshes, makes three layers of laminated film surface form the reticulate pattern structure of different meshes;
6), under the envrionment conditions of relative humidity 12-80%, three layers of laminated film that step 5) is made are deposited after 1-12h, peel off and remove two-layer PET release film, and cut, and obtain glue-free reticulate pattern film.
Made glue-free reticulate pattern film, its anti-electrostatic desired value is 10
6-10
12Ω/sq.
Technique of the present invention is simple, advanced, and solvent-free volatilization, meets environmental requirement, and low cost of manufacture, good product quality.The autohension of glue-free reticulate protective film is to realize by the viscosity of high molecular polymer self, and cohesive strength can regulate by the content of polyolefin elastomer.The clear slickness of glue-free reticulate protective film reticulate pattern is realized by reticulate pattern shifting process; in laminating process; anilox roll first forms reticulate pattern on the PET of both sides release film; reticulate pattern on PET release film transfers on the PP film of middle layer; then after rolling cooling placement for some time, peel off the PP reticulate protective film obtaining and have clear smooth reticulate pattern, friction is difficult for falling bits.
Embodiment
Below in conjunction with embodiment, the present invention will be further described.
Below relate to " part " for mass fraction.
embodiment 1
A kind of glue-free reticulate pattern film, it comprises polypropylene and propylene-based elastomeric.
The method of making described glue-free reticulate pattern film, comprises the following steps:
1) 40 parts of polypropylene and the 60 parts of propylene-based elastomeric particles of granular size 3-6mm are mixed and add the opening for feed of extruding laminating machine;
2) compound of step 1) gained is heated to 180-200 ℃, make its fusing;
3) by step 2) the melt-blended material of gained delivers to die head moulding through forcing machine;
4) by traction, make the PP film of 15 μ m thickness of moulding, outwards output, now PP film overlaps and travels forward with the PET release film that is placed in advance the 12 μ m thickness that on laminating machine, rotation is outwards exported, and forming middle layer is that PP film, both sides are the laminated film of the three-decker of PET release film;
5) by laminated film in step 4) through roller roll extrusion, the pressure of roll extrusion is 4kg/ ㎡, temperature is controlled at 50 ℃, make PP film laminating with PET release film together with, then rolling; When through roller roll extrusion, the anilox roll that roller is different meshes, makes three layers of laminated film surface form the reticulate pattern structure of different meshes;
6), under the envrionment conditions of relative humidity 20-30%, three layers of laminated film that step 5) is made are deposited after 6h, peel off and remove two-layer PET release film, and cut, and obtain glue-free reticulate pattern film.
embodiment 2
A kind of glue-free reticulate pattern film, it comprises polypropylene and Polyurethane Thermoplastic Elastomer (TPU).
The method of making described glue-free reticulate pattern film, comprises the following steps:
1) 80 parts of polypropylene of granular size 3-6mm and 70 parts of Polyurethane Thermoplastic Elastomer (TPU) particle are mixed and add the opening for feed of extruding laminating machine;
2) compound of step 1) gained is heated to 160-180 ℃, make its fusing;
3) by step 2) the melt-blended material of gained delivers to die head moulding through forcing machine;
4) by traction, make the PP film of 20 μ m thickness of moulding, outwards output, now PP film overlaps and travels forward with the PET release film that is placed in advance the 20 μ m thickness that on laminating machine, rotation is outwards exported, and forming middle layer is that PP film, both sides are the laminated film of the three-decker of PET release film;
5) by laminated film in step 4) through roller roll extrusion, the pressure of roll extrusion is 3kg/ ㎡, temperature is controlled at 40 ℃, make PP film laminating with PET release film together with, then rolling; When through roller roll extrusion, the anilox roll that roller is different meshes, makes three layers of laminated film surface form the reticulate pattern structure of different meshes;
6), under the envrionment conditions of relative humidity 35-40%, three layers of laminated film that step 5) is made are deposited after 5h, peel off and remove two-layer PET release film, and cut, and obtain glue-free reticulate pattern film.
Claims (5)
1. a preparation method for glue-free reticulate pattern film, is characterized in that:
1), by polypropylene and polyolefin elastomer particle, be mixed in proportion and add the opening for feed of extruding laminating machine; The mass ratio of described polypropylene and polyolefin elastomer is 0.3～3:1;
2) compound of step 1) gained is heated to 150-250 ℃, make its fusing;
3) by step 2) the melt-blended material of gained delivers to die head moulding through forcing machine;
4) by traction, the PP film of moulding is outwards exported; PP film outwards rotates the PET release film of output and overlaps and travel forward with being placed in advance on laminating machine, forming middle layer is PP film, and both sides are the laminated film of the three-decker of PET release film;
5) by laminated film in step 4) through roller roll extrusion, make PP film laminating with PET release film together with, then rolling; Roller is the anilox roll of different meshes;
6) three layers of laminated film that step 5) made are deposited after certain hour, peel off and remove two-layer PET release film, and cut, and obtain glue-free reticulate pattern film.
2. the preparation method of a kind of glue-free reticulate pattern film according to claim 1, is characterized in that: described polypropylene and polyolefin elastomer granular size are 3-6mm.
3. the preparation method of a kind of glue-free reticulate pattern film according to claim 1, is characterized in that: described PP film thickness 10-80 μ m, described PET release film thickness 12-50 μ m.
4. the preparation method of a kind of glue-free reticulate pattern film according to claim 1, is characterized in that: the pressure through roller roll extrusion is 1-5kg/ ㎡, and temperature is controlled at 0-80 ℃.
5. the preparation method of a kind of glue-free reticulate pattern film according to claim 1, is characterized in that: the time that three layers of laminated film that described step 5) makes are deposited is 1-12h, and storage environment condition is relative humidity 12-80%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210119233.4A CN102676087B (en) | 2012-04-23 | 2012-04-23 | Adhesive-free textured film and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210119233.4A CN102676087B (en) | 2012-04-23 | 2012-04-23 | Adhesive-free textured film and preparation method thereof |
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| CN102676087A CN102676087A (en) | 2012-09-19 |
| CN102676087B true CN102676087B (en) | 2014-05-21 |
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| CN104962043A (en) * | 2015-05-29 | 2015-10-07 | 吉翔宝（太仓）离型材料科技发展有限公司 | PET photodiffusion release film |
| CN109536054A (en) * | 2018-12-13 | 2019-03-29 | 深圳百凯纺织辅料有限公司 | A kind of compound elastic gum net and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101006152A (en) * | 2004-06-28 | 2007-07-25 | 陶氏环球技术公司 | Adhesion promoters for multistructural laminates |
| TW200838961A (en) * | 2007-02-02 | 2008-10-01 | Mitsui Chemicals Inc | Adhesive and multilayer body using the same |
| CN102015294A (en) * | 2006-12-15 | 2011-04-13 | 埃克森美孚化学专利公司 | Multi-layer films comprising propylene-based polymers |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100890008B1 (en) * | 2008-05-26 | 2009-03-20 | 주식회사 한진피앤씨 | Adhesive film |
| CN102549092B (en) * | 2009-08-04 | 2014-04-30 | 三井化学株式会社 | Surface protection film |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101006152A (en) * | 2004-06-28 | 2007-07-25 | 陶氏环球技术公司 | Adhesion promoters for multistructural laminates |
| CN102015294A (en) * | 2006-12-15 | 2011-04-13 | 埃克森美孚化学专利公司 | Multi-layer films comprising propylene-based polymers |
| TW200838961A (en) * | 2007-02-02 | 2008-10-01 | Mitsui Chemicals Inc | Adhesive and multilayer body using the same |
| EP2110408A1 (en) * | 2007-02-02 | 2009-10-21 | Mitsui Chemicals, Inc. | Adhesive and multilayer body using the same |
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Effective date of registration: 20200331 Address after: 226300 28 Pugongying Road, Xitong science and Technology Industrial Park, Tongzhou District, Nantong City, Jiangsu Province Patentee after: NANTONG YINGCHUAN FILM TECHNOLOGY Co.,Ltd. Address before: 226311, Jiangsu, Nantong, Tongzhou District Zhang Chi Town Industrial Concentration Area Patentee before: NANTONG JIENUO PLASTIC TECHNOLOGY Co.,Ltd. |
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