CN1590063A - Manufacturing method of plastic film - Google Patents
Manufacturing method of plastic film Download PDFInfo
- Publication number
- CN1590063A CN1590063A CN 03150849 CN03150849A CN1590063A CN 1590063 A CN1590063 A CN 1590063A CN 03150849 CN03150849 CN 03150849 CN 03150849 A CN03150849 A CN 03150849A CN 1590063 A CN1590063 A CN 1590063A
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- CN
- China
- Prior art keywords
- manufacture method
- plastic sheeting
- plastic
- sheeting according
- film
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
A process for preparing plastic film includes such steps as proportionally mixing raw materials, drying, heating to fuse the mixture, extruding out, calendering, heating, stretching, cooling and cutting to needed sizes or winding.
Description
Technical field
The present invention relates to a kind of manufacture method of plastic sheeting.
Background technology
Development along with society, plastic sheeting, as functional Merlon functional membrane, the unidirectional shrink film of polyester etc., the Merlon functional membrane is at thin film switch, automobile instrument, communication, safety glass, the extensive use of aspects such as bulletproof glass, requirement to this film is quite high, use present technology such as raw material, dry, extrude, filter, curtain coating, the film that cooling and shaping forms, although film thickness is to have approached, but its poor surface smoothness, in uneven thickness, be difficult at automobile instrument, safety glass, in the requirement that aspects such as the touch-screen of electronic instrument are used, foreign technology blocks, the needed film product of China is by import, but physique is expensive.
Summary of the invention
The invention provides a kind of manufacture method of plastic sheeting, its technology is simple, reduced investment, and the film of producing is thin, surface smoothness is good, thickness is even.
The manufacture method of the thin material of a kind of plastics, at first prepare burden, next is to the drying of raw material, the 3rd step was to extrude by plastic extruder after dried raw material is heated to molten condition, and the 4th step was a calendering formation on calender, and the thickness of film is 0.5-1.5mm, the 5th step was the vitrification point that is heated to resin by heater of the film after the calendering between the melt temperature and stretch, film thickness after the stretching is 0.05-0.5mm, and the 6th step was a cooling and shaping, at last section or rolling.
The general infrared heating device that adopts of heating during the stretching of film now, because its heated perimeter of infrared heating is very wide, and film surface temperature is inhomogeneous, film thickness can be irregular during stretching, adopt LASER HEATING can make the film thermal treatment zone very narrow, form linear heating shape, firing rate fast and also on these heating lines temperature very even, film thickness when stretching is also more easy to control, and stretched film product thickness is even.
Described raw material can be additives such as polycarbonate resin and fire retardant.
Described raw material also can be additives such as mylar and reinforcing agent.
In order to reduce film product internal stress, after stretching, cooling and shaping is preceding through Overheating Treatment.
According to above-described manufacture method, it is simple to have technology, equipment needed thereby reduced investment, characteristics such as production efficiency height.
Description of drawings
Accompanying drawing is a process chart of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described:
In the accompanying drawings, the method of making polycarbonate film is as follows: described plastic raw materials is to add additive such as fire retardant in the polycarbonate resin, by the feeder material loading, pneumatic conveying drying then, automatic blending is heated to 160-280 ℃ and extrudes on extruder, filters and metering, on calender, adopt the calendering of three roller high temperature, the thickness of calendering back polycarbonate membrane is 0.5-1.5mm, is heated to 160-200 ℃ of after-drawing by laser heating device, and the thickness of stretched film is that 0.5-0.05mm is by heat treatment, cooling and shaping, thickness measuring and regulation and control, overlay film is cut edge, rolling or section, packing at last.
In the accompanying drawings, a kind of method of making polyester film: described raw material is additives such as mylar and reinforcing agent, by the feeder material loading, pneumatic conveying drying then, automatic blending is heated to 270-290 ℃ and extrudes on extruder, filter and metering, adopt the calendering of three roller high temperature on calender, the thickness of calendering back polycarbonate film is 0.5-1.5mm, is heated to 90-100 ℃ of after-drawing by laser heating device, stretched film thickness is 0.5-0.05mm, by heat treatment, cooling and shaping, thickness measuring and regulation and control, overlay film, cut edge rolling or section, packing at last.
It is simple that this manufacture method has technology, characteristics such as the film surface of production is highly polished, thin thickness, constant product quality, and product is widely used in every field.
Claims (9)
1, a kind of manufacture method of plastic sheeting: 1. prepare burden and material loading, 2. raw material drying, 3. be heated under the molten condition and on plastic extruder, extrude, it is characterized in that: 4. by the calender calendering formation, thickness after the calendering is 0.5-1.5mm, 5. is heated to vitrification point by heater and stretches between the melt temperature, and the thickness of stretching caudacoria is 0.05-0.5mm, 6. cooling and shaping, 7. section or rolling.
2, the manufacture method of plastic sheeting according to claim 1 is characterized in that: be heated to be LASER HEATING during described stretching.
3, the manufacture method of plastic sheeting according to claim 1 is characterized in that: described calendering adopts three roll-ins to prolong.
4, the manufacture method of plastic sheeting according to claim 1 is characterized in that: behind the stretched plastic film, cooling and shaping is preceding through Overheating Treatment.
5, the manufacture method of plastic sheeting according to claim 1 is characterized in that: the raw material during described material loading is additives such as polycarbonate resin and fire retardant.
6, the manufacture method of plastic sheeting according to claim 5 is characterized in that: heating-up temperature is 160-280 ℃ when extruding.
7, the manufacture method of plastic sheeting according to claim 5 is characterized in that: heating-up temperature is 160-200 ℃ during stretching.
8, according to the manufacture method of claim 5,6,7 arbitrary described plastic sheetings, it is characterized in that: also need overlay film behind the cooling and shaping.
9, the manufacture method of plastic sheeting according to claim 1 is characterized in that: the raw material during described material loading is additives such as mylar and reinforcing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03150849 CN1590063A (en) | 2003-09-05 | 2003-09-05 | Manufacturing method of plastic film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03150849 CN1590063A (en) | 2003-09-05 | 2003-09-05 | Manufacturing method of plastic film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1590063A true CN1590063A (en) | 2005-03-09 |
Family
ID=34597703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03150849 Pending CN1590063A (en) | 2003-09-05 | 2003-09-05 | Manufacturing method of plastic film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1590063A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102272393A (en) * | 2008-10-20 | 2011-12-07 | 巴斯夫公司 | Roofing materials with metallic appearance |
| CN102863772A (en) * | 2012-10-08 | 2013-01-09 | 绵阳龙华薄膜有限公司 | Ultrathin halogen-free flame retardant polycarbonate film and preparation method thereof |
| CN107672228A (en) * | 2017-09-30 | 2018-02-09 | 江苏瑞腾涂装科技有限公司 | A kind of preparation method of degradable packaging bag |
| CN113021935A (en) * | 2021-03-18 | 2021-06-25 | 吴志华 | Preparation process of polyester film material |
-
2003
- 2003-09-05 CN CN 03150849 patent/CN1590063A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102272393A (en) * | 2008-10-20 | 2011-12-07 | 巴斯夫公司 | Roofing materials with metallic appearance |
| CN102863772A (en) * | 2012-10-08 | 2013-01-09 | 绵阳龙华薄膜有限公司 | Ultrathin halogen-free flame retardant polycarbonate film and preparation method thereof |
| CN107672228A (en) * | 2017-09-30 | 2018-02-09 | 江苏瑞腾涂装科技有限公司 | A kind of preparation method of degradable packaging bag |
| CN113021935A (en) * | 2021-03-18 | 2021-06-25 | 吴志华 | Preparation process of polyester film material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |