CN1283444C - Method for producing double point stretching reinforced plastic film - Google Patents
Method for producing double point stretching reinforced plastic film Download PDFInfo
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- CN1283444C CN1283444C CN 200410064685 CN200410064685A CN1283444C CN 1283444 C CN1283444 C CN 1283444C CN 200410064685 CN200410064685 CN 200410064685 CN 200410064685 A CN200410064685 A CN 200410064685A CN 1283444 C CN1283444 C CN 1283444C
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- basement membrane
- plastic film
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Abstract
The present invention discloses a producing method for a double-point stretching reinforced plastic film with two stretching stations and an adjustable stretching process. Firstly, a basal film is arranged on a decoiling machine, and is preheated by a preheating machine; secondly, two stretching machines stretch two points of the basal film, and each stretching station and a stretching ratio can be adjusted; after that heat treatment and corona treatment are carried out on the stretched basal film by a forming machine; finally, the basal film is cooled, and then is towed and coiled by a coiling machine. Compared with the prior art, the present invention can be applied to the secondary stretching and the secondary forming of various thin films, and the stretched thin film has the advantages of high strength, fine transparency, fine glossiness, strong temperature resistance, strong obstruction and superior wrapping performance; the present invention has broad market prospects and economic value in secondary processing technology of the plastic film.
Description
One, technical field
The invention belongs to the plastic sheeting processing method, relate to a kind of secondary processing method of high-strength thin-film, specifically a kind of production method of double point stretching reinforced plastic film.
Two, background technology
At present, existing plastic sheeting secondary processing method all adopts single-point, fixing draw ratio structure, is mainly used in the production of PVC heat shrink films.The shortcoming of this processing method is: have only a stretching station, stretching station and draw ratio are all unadjustable, the vertical poor performance of stretched film, big, little, the unit use cost height of parcel area of base material thickness.
Three, summary of the invention
The drawing process that the purpose of this invention is to provide a kind of comprehensive good reinforced plastic film.This drawing process utilizes the cooperation of two stretching stations and process adjustments, makes product to the superelevation rerum natura, and the ultrathin membrane direction develops; Remedy simultaneously the not enough defective of the vertical performance of two step stretched film again, fallen and approached base material, significantly increased the parcel area, reduced the unit use cost.
The object of the present invention is achieved like this: a kind of production method of double point stretching reinforced plastic film at first is installed to basement membrane on the unreeling machine; And basement membrane is carried out preheating by preheating machine; By stretching-machine basement membrane is stretched then, by forming machine the basement membrane after stretching is heat-treated and sided corona treatment again, after supercooling, draw rolling at last by winder; It is characterized in that: basement membrane is being carried out in the drawing process, be provided with two stretching stations, adopting the double point stretching method, and each stretching station and draw ratio are all adjustable.
The present invention is provided with two stretching-machines when basement membrane is stretched, be respectively first stretching-machine and second stretching-machine, and the stretching station and the draw ratio of these two stretching-machines all can be regulated.For better extensograph parameter being implemented in line traffic control, satisfy the different requirements in market, be equipped with infrared heater at first stretching-machine and the second stretching-machine place, when stretching, can heat basement membrane as required.
For making the plastic sheeting can even running in drawing process, to guarantee drawing effect, the present invention be provided with the tension adjustment machine between preheating machine and unreeling machine, before preheating at first to the basement membrane tensioning that stretches.For guaranteeing the reeling quality of plastic sheeting, between forming machine and winder, also be provided with the tension adjustment machine, the basement membrane cooling is after overtension is regulated the back by winder traction rolling.
The present invention adopts basement membrane (BOPP, BOPET, BOPA, BOPS, CPP, CPE, RPVC)-and preheating-first longitudinal stretching-second longitudinal stretching-heat treatment-sided corona treatment-cooling--the production technology of traction rolling, when producing shrink film, should cancel the heat treatment flow process.Because be that contact realizes stretching, the longitudinal stretching ratio is controlled well, and can change the special contraction requirement that market and client are recently satisfied in stretching more conveniently, therefore of many uses, the product mechanicalness is good.
The present invention is specially adapted to plastic foil is carried out the processing and manufacturing of following several respects:
1, the film super-strengthening (reinforced film) after two the drawing;
2, inflation film strengthens (half reinforced film) again;
3, utilize cast film to be reprocessed into unidirectional membrane, plant machinery manufacturing and electrical equipment control required precision and be principle with reference to vertical technology in length and breadth, carry out well-designed, make and stretch film;
4, utilize certain thickness soft, rigid plastics sheet to be reprocessed into unidirectional superhigh intensity film.
Utilize production method of the present invention mainly can obtain following five big series products:
1, printing with, mould/mould compound usefulness, superpower, ultra-thin, the high transparent membrane of the compound usefulness of paper;
2, vertical superpower adhesive tape film, vertical superpower aureate pullcord film;
3, candy kink, fresh flower film for packaging class simple tension film;
4, the high typing of specific use, high-resistant diaphragm;
5, the superhigh intensity electrician uses film.
Compared with prior art, advantage of the present invention mainly shows: it adopts two stretching stations, each station draw ratio can be regulated setting arbitrarily between 1: 1 to 1: 6, this design is applicable to the succeeding stretch and the typing of various films, demand according to the downstream client, can effectively improve the intensity of film, improve film clarity and glossiness, increase film temperature tolerance and barrier; Can adjust the percent thermal shrinkage of film, increase the parcel performance of the packing of product.
Four, description of drawings
Accompanying drawing is a process chart of the present invention.
Five, the specific embodiment
A kind of production method of double point stretching reinforced plastic film of the present invention at first is installed to basement membrane on the unreeling machine 4.Make basement membrane energy even running in drawing process by tension adjustment machine 6, tension adjustment machine 6 is made up of two rollers.Carry out preheating through preheating machine 2 then, reach the temperature requirement of deformation, preheating machine 2 is made up of 4 rollers.Through the longitudinal stretching of first stretching-machine 11 and the longitudinal stretching of second stretching-machine 12, first stretching-machine 11 and second stretching-machine 12 are formed by two draw rolls again.At this moment, for better extensograph parameter being implemented in line traffic control, satisfy the different requirements in market, can carry out heat treated by 8 pairs of basement membranes of infrared heater, two stretching stations, each station draw ratio can be regulated arbitrarily between 1: 1 to 1: 6 according to product requirement and set.Basement membrane after stretched is handled by forming machine 3 again, and forming machine 3 is made up of 5 rollers.The cooling back is batched by winder 5 by 7 tractions of tension adjustment machine, and tension adjustment machine 7 also is made up of two rollers.Device therefor is by motor M 1, M2, M3, M4, M5 transmission among the present invention.When producing shrink film, should cancel the heat treatment flow process.The present invention is owing to be that contact realizes stretching, and the longitudinal stretching ratio is controlled well, and can change the special contraction requirement that market and client are recently satisfied in stretching more conveniently, and therefore of many uses, the product mechanicalness is good.
Claims (5)
1, a kind of production method of double point stretching reinforced plastic film at first is installed to basement membrane on the unreeling machine (4); And basement membrane is carried out preheating by preheating machine (2); By stretching-machine (1) basement membrane is stretched then, by forming machine (3) basement membrane after stretching is heat-treated and sided corona treatment again, after supercooling, draw rolling at last by winder (5); It is characterized in that: basement membrane is being carried out in the drawing process, be provided with two stretching stations, adopting the double point stretching method, and each stretching station and draw ratio are all adjustable.
2, the production method of double point stretching reinforced plastic film according to claim 1, it is characterized in that: when basement membrane is stretched, be provided with two stretching-machines, be respectively first stretching-machine (11) and second stretching-machine (12), the stretching station and the draw ratio of these two stretching-machines all can be regulated.
3, the production method of double point stretching reinforced plastic film according to claim 2 is characterized in that: locate to be equipped with infrared heater (8) at first stretching-machine (11) and second stretching-machine (12), when stretching basement membrane is heated.
4, the production method of double point stretching reinforced plastic film according to claim 1 is characterized in that: between preheating machine (2) and unreeling machine (4), be provided with tension adjustment machine (6), before preheating at first to the basement membrane tensioning that stretches.
5, the production method of double point stretching reinforced plastic film according to claim 1 is characterized in that: be provided with tension adjustment machine (7) between forming machine (3) and winder (5), the basement membrane cooling is after overtension is regulated the back by winder (5) traction rolling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410064685 CN1283444C (en) | 2004-09-20 | 2004-09-20 | Method for producing double point stretching reinforced plastic film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410064685 CN1283444C (en) | 2004-09-20 | 2004-09-20 | Method for producing double point stretching reinforced plastic film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1586867A CN1586867A (en) | 2005-03-02 |
| CN1283444C true CN1283444C (en) | 2006-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410064685 Expired - Fee Related CN1283444C (en) | 2004-09-20 | 2004-09-20 | Method for producing double point stretching reinforced plastic film |
Country Status (1)
| Country | Link |
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| CN (1) | CN1283444C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101396892B (en) * | 2008-10-22 | 2013-05-01 | 北京康得新复合材料股份有限公司 | Metallization biaxial stretching polyester (BOPET) pre-coating film using chemical treatment |
| CN101693423B (en) * | 2009-08-12 | 2011-03-09 | 江阴市兰天彩印包装有限公司 | Composite technology for fixed length stretching |
| CN104149368A (en) * | 2014-07-28 | 2014-11-19 | 浙江绍兴华东包装有限公司 | Single-point and double-point switching type BOPET thin film processing device and method |
| CN104772897A (en) * | 2015-04-04 | 2015-07-15 | 江苏华尚汽车玻璃工业有限公司 | Automobile glass adhesive sheet rapid molding device |
| CN107962793A (en) * | 2017-12-08 | 2018-04-27 | 武汉红金龙印务股份有限公司 | It is a kind of to handle the method for improving printing packaging dyne value |
| CN109366958B (en) * | 2018-10-27 | 2021-03-26 | 烟台世昊塑业有限公司 | Secondary stretching process of polypropylene release film |
| CN110253872A (en) * | 2019-07-01 | 2019-09-20 | 厦门聚富塑胶制品有限公司 | A kind of film pre-stretching machine |
| CN113478793A (en) * | 2021-06-29 | 2021-10-08 | 浙江天之元物流科技有限公司 | Winding film rewinding process and anti-falling stretching winding film |
| CN114074418A (en) * | 2021-11-23 | 2022-02-22 | 荆州市与时塑业有限公司 | Multistage orientation stretching system and method |
-
2004
- 2004-09-20 CN CN 200410064685 patent/CN1283444C/en not_active Expired - Fee Related
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| CN1586867A (en) | 2005-03-02 |
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Owner name: HUADONG PACKING CO., LTD., SHAOXING, ZHEJIANG Free format text: FORMER OWNER: NANJING VOCATIONAL AND TECHNICAL COLLEGE Effective date: 20090904 |
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Effective date of registration: 20090904 Address after: The town of Doumen city of Shaoxing province Zhejiang Nanxing village Paojiang Industrial Zone Patentee after: Zhejiang Shaoxing Huadong Packaging Co., Ltd. Address before: No. 532-2, Zhongshan East Road, Jiangsu, Nanjing Patentee before: Nanjing Institute of Industry Technology |
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Granted publication date: 20061108 Termination date: 20130920 |