CN101670642B - Method for producing TPU film by casting and opposite pressing - Google Patents
Method for producing TPU film by casting and opposite pressing Download PDFInfo
- Publication number
- CN101670642B CN101670642B CN 200910041612 CN200910041612A CN101670642B CN 101670642 B CN101670642 B CN 101670642B CN 200910041612 CN200910041612 CN 200910041612 CN 200910041612 A CN200910041612 A CN 200910041612A CN 101670642 B CN101670642 B CN 101670642B
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- China
- Prior art keywords
- wheel
- minute surface
- middle high
- pressing
- mirror face
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- 238000003825 pressing Methods 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000005266 casting Methods 0.000 title abstract 2
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 238000007766 curtain coating Methods 0.000 claims description 13
- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 239000013078 crystal Substances 0.000 abstract 1
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 17
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 17
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention discloses a method for producing a TPU film by casting and opposite pressing. The method comprises the following steps: deposit material is extruded by die heads arranged at the upper sides of a main mirror face wheel and a middle high mirror face wheel and flows between the main mirror face wheel and the middle high mirror face wheel; the main mirror face wheel and the middle high mirror face wheel are set to be a constant temperature of 20-100 DEG C by a die temperature machine; the main mirror face wheel and the middle high mirror face wheel rotate in opposite directions simultaneously to press the deposit material oppositely, a film which is oppositely pressed is delivered to a cooling formation wheel by the middle high mirror face wheel, and the cooling formation wheel cools the film circularly to obtain a formed product; the invention sets the constant temperature to the main mirror face wheel and the middle high mirror face wheel by the die temperature machine, then the deposit material is oppositely pressed by the main mirror face wheel and the middle high mirror face wheel, afterwards the cooling formation wheel cools the film circularly to obtain the formed product, and cooling formation is rapid; and by the pressing of the mirror face wheels, the thickness of the TPU film can be uniform, and the TPU film does not have crystal points, flow marks and the like.
Description
Technical field
The present invention relates to the method for the processing of a kind of TPU (thermoplastic polyurethane) film.
Background technology
TPU is the environmental protection macromolecule polymer, Chinese name is the thermoplastic polyurethane, and it has overcome many defectives of PVC and PU skin, not only has most of characteristic of rubber and common plastics, but also have good comprehensive physical and chemical property, so the following material that is otherwise known as.The TPU film is to adopt the TPU pellet, and by the film that special process is made, it has inherited the outstanding physical property of TPU, and range of application is very extensive.
Curtain coating to pressure be the TPU melt is flowed out from die head after, between two minute surfaces wheel, be extruded to shape, cooling formation is transparent, the device of coloured TPU film.
Summary of the invention
The purpose of this invention is to provide a kind of can guarantee film thickness evenly, without the curtain coating of brilliant some current mark to pressing production method.
the technical solution adopted for the present invention to solve the technical problems is: a kind of curtain coating is to pressing the method for producing the TPU film, buildup is placed between primary mirror wheel and middle high minute surface wheel, described middle high minute surface wheel refers to that middle radius can have more the minute surface wheel of 2mm-20mm, described primary mirror wheel does not have middle height, girth is identical, diameter is consistent size, by die heater, primary mirror wheel and middle high minute surface wheel are arranged constant temperature, primary mirror wheel and middle high minute surface wheel rotate with opposite direction simultaneously, buildup is carried out pressing, high minute surface wheel in film quilt after pressing is taken on the cooling forming wheel, the cooling forming wheel carries out cool cycles to film and obtains shaped article.
Die heater arranges constant temperature to primary mirror wheel and middle high minute surface wheel, and described constant temperature can arrange between 20 ℃-100 ℃.
Described buildup is extruded by the die head that is arranged on primary mirror wheel and middle high minute surface wheel upside.
The invention has the beneficial effects as follows: by die heater, primary mirror wheel and middle high minute surface wheel are arranged constant temperature, then primary mirror wheel and middle high minute surface are taken turns buildup pressing, then the cooling forming wheel carries out the cooling shaped article that obtains to film, moulding is cooling rapidly, the pressing of minute surface wheel can allow the TPU film thickness even, without brilliant point, current mark, produce high-quality TPU film, satisfy the requirement of expensive goods.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of realizing curtain coating opposite-grinding device of the present invention;
Fig. 2 is the schematic diagram of high minute surface wheel in Fig. 1;
Fig. 3 is the schematic diagram of primary mirror wheel in Fig. 1.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
a kind of curtain coating is to pressing the method for producing the TPU film, by the die head that is arranged on primary mirror wheel and middle high minute surface wheel upside, the TPU material of fusing is extruded, described middle high minute surface wheel refers to that middle radius can have more the minute surface wheel of 2mm-20mm, described primary mirror wheel does not have middle height, girth is identical, diameter is consistent size, by die heater, primary mirror wheel and middle high minute surface wheel are arranged constant temperature, described constant temperature can arrange between 20 ℃-100 ℃, buildup flows between primary mirror wheel and middle high minute surface wheel, by die heater, primary mirror wheel and middle high minute surface wheel are arranged the constant temperature of 20 ℃-100 ℃, primary mirror wheel and middle high minute surface wheel rotate with opposite direction simultaneously, buildup is carried out pressing, high minute surface wheel in film quilt after pressing is taken on the cooling forming wheel, the cooling forming wheel carries out cool cycles to film and obtains shaped article.The present invention arranges constant temperature by die heater to primary mirror wheel and middle high minute surface wheel, then primary mirror wheel and middle high minute surface are taken turns buildup pressing, then cooling forming wheel carries out cool cycles to film and obtains shaped article, cooling forming is rapid, the pressing of minute surface wheel can allow the TPU film thickness even, without brilliant point, current mark, produce high-quality TPU film, satisfy the requirement of expensive goods.
With reference to Fig. 1, Fig. 2, shown in Figure 3, a kind of curtain coating opposite-grinding device, comprise the die head 4 of extruding buildup 7, die head 4 lower horizontal are placed with primary mirror wheel 1, middle high minute surface wheel 2 and cooling forming wheel 3, described primary mirror wheel 1 and middle high minute surface wheel 2 are separately positioned on the left and right sides of die head 4 outlets, primary mirror wheel 1 downside is provided with die heater 6, primary mirror wheel 1 and middle high minute surface wheel 2 are connected with die heater 6 by water pipe 5 respectively, and die heater 6 arranges respectively different temperature according to hardness and the thickness of product to primary mirror wheel 1 and middle high minute surface wheel 2.During work, the buildup 7 that die head 4 is extruded falls between primary mirror wheel 1 and high minute surface wheel 2 carries out pressing, and is coated on middle high minute surface wheel 2, and then is rolled on cooling forming wheel 3.
Above-described embodiment is illustrative principle of the present invention and effect thereof only; and the embodiment of part utilization, for the person of ordinary skill of the art, under the prerequisite that does not break away from the invention design; can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (6)
1. a curtain coating is to pressing the method for producing the TPU film, it is characterized in that: buildup is placed between primary mirror wheel and middle high minute surface wheel, described middle high minute surface wheel refers to that middle radius can have more the minute surface wheel of 2mm-20mm, described primary mirror wheel does not have middle height, girth is identical, diameter is consistent size, by die heater, primary mirror wheel and middle high minute surface wheel are arranged constant temperature, primary mirror wheel and middle high minute surface wheel rotate with opposite direction simultaneously, buildup is carried out pressing, high minute surface wheel in film quilt after pressing is taken on the cooling forming wheel, the cooling forming wheel carries out cool cycles to film and obtains shaped article.
2. a kind of curtain coating according to claim 1 to pressing the method for producing the TPU film, is characterized in that, die heater arranges constant temperature to the primary mirror wheel, and described constant temperature can arrange between 20 ℃-100 ℃.
3. a kind of curtain coating according to claim 1 to pressing the method for producing the TPU film, is characterized in that, the high minute surface wheel of die heater centering arranges constant temperature, and described constant temperature can arrange between 20 ℃-100 ℃.
4. according to claim 1 and 2 or 3 described a kind of curtain coatings to pressing the method for producing the TPU film, is characterized in that, described buildup is extruded by the die head that is arranged on primary mirror wheel and middle high minute surface wheel upside.
5. a kind of curtain coating according to claim 4 to pressing the method for producing the TPU film, is characterized in that, described primary mirror wheel and middle high minute surface wheel level are arranged.
6. a kind of curtain coating according to claim 5 to pressing the method for producing the TPU film, is characterized in that, die heater arranges respectively different temperature according to hardness and the thickness of product to primary mirror wheel and middle high minute surface wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910041612 CN101670642B (en) | 2009-08-04 | 2009-08-04 | Method for producing TPU film by casting and opposite pressing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910041612 CN101670642B (en) | 2009-08-04 | 2009-08-04 | Method for producing TPU film by casting and opposite pressing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101670642A CN101670642A (en) | 2010-03-17 |
| CN101670642B true CN101670642B (en) | 2013-06-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910041612 Active CN101670642B (en) | 2009-08-04 | 2009-08-04 | Method for producing TPU film by casting and opposite pressing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101670642B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101875244A (en) * | 2010-05-25 | 2010-11-03 | 东莞市雄林新材料科技有限公司 | Method for producing TPU film |
| CN104002421A (en) * | 2014-06-19 | 2014-08-27 | 东莞市雄林新材料科技股份有限公司 | Casting cooling device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1280593A (en) * | 1997-12-05 | 2001-01-17 | 罗姆有限公司 | Method for producing surface-hardened PMMA films which are highly glossy on both sides, free of gel bodies and can be manipulated in 'film-insert-moulding' method |
-
2009
- 2009-08-04 CN CN 200910041612 patent/CN101670642B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1280593A (en) * | 1997-12-05 | 2001-01-17 | 罗姆有限公司 | Method for producing surface-hardened PMMA films which are highly glossy on both sides, free of gel bodies and can be manipulated in 'film-insert-moulding' method |
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| Publication number | Publication date |
|---|---|
| CN101670642A (en) | 2010-03-17 |
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Addressee: He Jianxiong Document name: Notification of Passing Preliminary Examination of the Application for Invention |
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Owner name: HE JIANXIONG Free format text: FORMER OWNER: DONGFEI XIONGLIN PLASTIC + RUBBER CO., LTD. Effective date: 20110413 |
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Effective date of registration: 20110413 Address after: Fifty-two thousand and three hundred Guangdong province Houjie town of Dongguan City, Tian River North West Avenue crest Lane three No. 8 Applicant after: He Jianxiong Address before: 523000 Guangdong province Houjie town of Dongguan City, River Avenue crest Road Applicant before: Fei Lin Plastic Co., Ltd. |
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Owner name: DONGGUAN XIONGLIN NEW MATERIAL TECHNOLOGY CO., LTD Free format text: FORMER OWNER: HE JIANXIONG Effective date: 20140807 |
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Effective date of registration: 20140807 Address after: 523000 Guangdong city in Dongguan Province town of Kau Ya Industrial Zone Patentee after: Dongguan Xionglin New Material Technology Co., Ltd. Address before: 523000 Guangdong province Houjie town of Dongguan City, Tian River North West Avenue crest Lane three No. 8 Patentee before: He Jianxiong |