CN101758960B - Biaxial stretched polyethylene protective film - Google Patents
Biaxial stretched polyethylene protective film Download PDFInfo
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- CN101758960B CN101758960B CN200910272726XA CN200910272726A CN101758960B CN 101758960 B CN101758960 B CN 101758960B CN 200910272726X A CN200910272726X A CN 200910272726XA CN 200910272726 A CN200910272726 A CN 200910272726A CN 101758960 B CN101758960 B CN 101758960B
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- metallocene
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Abstract
The invention belongs to the wrapping material technical field, particularly to a wrapping film. A two- way stretched polyethylene protective film is characterized by comprising a functional layer, a core layer and a secondary functional layer, the core layer is located between the functional layer and the secondary functional layer, the functional layer, the core layer and the secondary functional layer are co-extruded and then biaxial stretched to form one; the material for the functional layer is composed by(weight percentage) 60 percent of low-density polyethylene, 35 percent of metallocene polyethylene, 3 percent of antiadhesion agent and 2 percent of smoothness agent; the material for the core layer is metallocene polyethylene; and the material for the secondary functional layer is composed by(weight percentage) 60 percent of low-density polyethylene, 40 percent of metallocene polyethylene; the material weight ratio of the functional layer, the core layer and the secondary functional layer is 1:1:1. The invention has the advantages of excellent toughness, incise-wound and bumping-wound resistance.
Description
Technical field
The invention belongs to field of packaging material, be specifically related to a kind of wrapping biaxial stretched polyethylene protective film.
Background technology
Present film for packaging { like bidirectional stretching polypropylene film } exists following deficiency: poor toughness, can not effectively protect precision instrument.
Summary of the invention
The object of the present invention is to provide a kind of biaxial stretched polyethylene protective film of good toughness.
To achieve these goals; Technical scheme of the present invention is: biaxial stretched polyethylene protective film; It is characterized in that: it is made up of functional layer, sandwich layer and subfunction layer; Sandwich layer is between functional layer and subfunction layer, and functional layer, sandwich layer and subfunction layer adopt coextrusion after biaxial tension and being integral;
The material of said functional layer is made up of low density polyethylene (LDPE), metallocene PE, antiseize agent and slipping agent, and the shared mass percent of each component is: low density polyethylene (LDPE) 60%, metallocene PE 35%, antiseize agent 3%, slipping agent 2%;
The material of said sandwich layer is a metallocene PE;
The material of said subfunction layer is made up of ethene-vinyl acetate vinegar copolymer (EVA) and metallocene PE, and the shared mass percent of each component is: ethene-vinyl acetate vinegar copolymer (EVA) 60%, metallocene PE 40%;
The material of functional layer: the material of sandwich layer: the mass ratio of the material of subfunction layer is 1: 1: 1.
The invention has the beneficial effects as follows: good toughness, ability cut-protection, anti-damaging.The present invention is used to protect the surface of precision instrument, components and parts, workpiece, measurer and electronic machine.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Among the figure: 1-functional layer, 2-sandwich layer, 3-subfunction layer.
The specific embodiment
Embodiment 1:
As shown in Figure 1; Biaxial stretched polyethylene protective film; It is made up of functional layer 1, sandwich layer 2 and subfunction layer 3; Sandwich layer 2 is between functional layer 1 and subfunction layer 3, and functional layer 1, sandwich layer 2 and subfunction layer 3 adopt coextrusion after biaxial tension and be integral (extrusion temperature is 180-210 ℃, adopts existing co-extrusion, stretch processes);
The material of said functional layer 1 is made up of low density polyethylene (LDPE), metallocene PE (line style), antiseize agent and slipping agent, and the shared mass percent of each component is: low density polyethylene (LDPE) 60%, metallocene PE 35%, antiseize agent 3%, slipping agent 2%;
The material of said sandwich layer 2 is a metallocene PE;
The material of said subfunction layer 3 is made up of ethene-vinyl acetate vinegar copolymer (EVA) and metallocene PE, and the shared mass percent of each component is: ethene-vinyl acetate vinegar copolymer (EVA) 60%, metallocene PE 40%;
The material of functional layer 1: the material of sandwich layer 2: the mass ratio of the material of subfunction layer 3 is 1: 1: 1.
The density of said low density polyethylene (LDPE) is 0.925g/cm
3Below.
Said antiseize agent is SiO
2
Said slipping agent is an erucyl amide.
Preparation method of the present invention is: the raw material of apolegamy is sent into extruder be processed into melt; Melt becomes sheet through curtain coating casting sheet co-extrusion; Sheet becomes film through biaxial tension; Film becomes female film through sided corona treatment or flame treatment, and parent roll cuts into the biaxial stretched polyethylene protective film finished product at last through ageing treatment.
Biaxial stretched polyethylene protective film of the present invention is carried out paracentesis resistance experiment: with puncture appearance experiment puncture biaxial stretched polyethylene protective film of the present invention, 15N can reach 30 punctures and do not break; Under the similarity condition, existing bidirectional stretching polypropylene film puncture is just broken for 5 times.Puncture time of the present invention is many, and the good toughness of biaxial stretched polyethylene protective film of the present invention is described, ability cut-protection, anti-damaging.
Embodiment 2:
Basic identical with embodiment 1, difference is: said antiseize agent is a talcum, and said slipping agent is an oleamide.
The present invention cited each raw material (comprising different molecular weight, different manufacturers) can both be realized the present invention, does not enumerate embodiment one by one at this.
Claims (1)
1. biaxial stretched polyethylene protective film, it is characterized in that: it is made up of functional layer, sandwich layer and subfunction layer, and sandwich layer is between functional layer and subfunction layer, and functional layer, sandwich layer and subfunction layer adopt coextrusion after biaxial tension and being integral;
The material of said functional layer is made up of low density polyethylene (LDPE), metallocene PE, antiseize agent and slipping agent, and the shared mass percent of each component is: low density polyethylene (LDPE) 60%, metallocene PE 35%, antiseize agent 3%, slipping agent 2%;
The material of said sandwich layer is a metallocene PE;
The material of said subfunction layer is made up of ethene-vinyl acetate vinegar copolymer and metallocene PE, and the shared mass percent of each component is: ethene-vinyl acetate vinegar copolymer 60%, metallocene PE 40%;
The material of functional layer: the material of sandwich layer: the mass ratio of the material of subfunction layer is 1: 1: 1;
The density of said low density polyethylene (LDPE) is 0.925g/cm
3Below;
Said antiseize agent is SiO
2Or talcum;
Said slipping agent is erucyl amide or oleamide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910272726XA CN101758960B (en) | 2009-11-10 | 2009-11-10 | Biaxial stretched polyethylene protective film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910272726XA CN101758960B (en) | 2009-11-10 | 2009-11-10 | Biaxial stretched polyethylene protective film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101758960A CN101758960A (en) | 2010-06-30 |
| CN101758960B true CN101758960B (en) | 2012-04-25 |
Family
ID=42490375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910272726XA Expired - Fee Related CN101758960B (en) | 2009-11-10 | 2009-11-10 | Biaxial stretched polyethylene protective film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101758960B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240943A (en) * | 2013-05-25 | 2013-08-14 | 湖北富思特材料科技集团有限公司 | Matte film and production technology thereof |
| CN104149445B (en) * | 2014-07-14 | 2016-03-23 | 湖北富思特材料科技集团有限公司 | The mute white coated film of BOPE |
| CN107097498A (en) * | 2016-06-08 | 2017-08-29 | 长沙银腾塑印包装有限公司 | The PE films and its production method of a kind of high transparency |
| WO2018135476A1 (en) * | 2017-01-18 | 2018-07-26 | 東洋製罐株式会社 | Structure having oil film on surface thereof |
| CN112172290B (en) * | 2019-07-02 | 2023-03-17 | 新特能源股份有限公司 | Film, production method thereof, packaging bag containing film and application of packaging bag |
| CN115556450A (en) * | 2022-09-26 | 2023-01-03 | 湖北慧狮塑业股份有限公司 | Ultra-thin polyolefin dry film protective film |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2818372Y (en) * | 2005-08-12 | 2006-09-20 | 哈尔滨隆华艺美包装制品有限公司 | Composite nanometer antibacterial packing film |
| CN101100123A (en) * | 2006-07-06 | 2008-01-09 | 郭瑞林 | Seven-layer co-extrusion high-isolating packaging film |
| JP2009178964A (en) * | 2008-01-31 | 2009-08-13 | Okamoto Ind Inc | Polyolefin-based resin film for use in agriculture |
| WO2009112255A1 (en) * | 2008-03-14 | 2009-09-17 | Tetra Laval Holdings & Finance S.A. | Packaging laminate, method for manufacturing of the packaging laminate and packaging container produced therefrom |
-
2009
- 2009-11-10 CN CN200910272726XA patent/CN101758960B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2818372Y (en) * | 2005-08-12 | 2006-09-20 | 哈尔滨隆华艺美包装制品有限公司 | Composite nanometer antibacterial packing film |
| CN101100123A (en) * | 2006-07-06 | 2008-01-09 | 郭瑞林 | Seven-layer co-extrusion high-isolating packaging film |
| JP2009178964A (en) * | 2008-01-31 | 2009-08-13 | Okamoto Ind Inc | Polyolefin-based resin film for use in agriculture |
| WO2009112255A1 (en) * | 2008-03-14 | 2009-09-17 | Tetra Laval Holdings & Finance S.A. | Packaging laminate, method for manufacturing of the packaging laminate and packaging container produced therefrom |
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| Publication number | Publication date |
|---|---|
| CN101758960A (en) | 2010-06-30 |
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Owner name: HUBEI FIRST MATERIAL TECHNOLOGY GROUP CO., LTD. Free format text: FORMER OWNER: HUBEI FIRST MATERIAL TECHNOLOGY CO., LTD. Effective date: 20110909 |
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Effective date of registration: 20110909 Address after: 20 No. 432500 Yunmeng County of Hubei Province Chengguan Mengzhe Avenue Applicant after: Hubei Firsta Material Science and Technology Group Co., Ltd. Address before: The first 20 building No. 432500 Yunmeng County of Hubei Province Chengguan Mengzhe Avenue 2 floor Sun Lin Technology Center Applicant before: Hubei Firsta Material S&T Co., Ltd. |
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