CN101475074B - Self-lubricating polyethylene film - Google Patents
Self-lubricating polyethylene film Download PDFInfo
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- CN101475074B CN101475074B CN2009101161122A CN200910116112A CN101475074B CN 101475074 B CN101475074 B CN 101475074B CN 2009101161122 A CN2009101161122 A CN 2009101161122A CN 200910116112 A CN200910116112 A CN 200910116112A CN 101475074 B CN101475074 B CN 101475074B
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- Prior art keywords
- density polyethylene
- low density
- polyethylene
- weight ratio
- self
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- 239000004698 Polyethylene Substances 0.000 title claims abstract description 15
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 15
- -1 polyethylene Polymers 0.000 title claims abstract description 14
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 26
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 26
- 229920000092 linear low density polyethylene Polymers 0.000 claims abstract description 15
- 239000004707 linear low-density polyethylene Substances 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 7
- 229920001526 metallocene linear low density polyethylene Polymers 0.000 claims abstract description 7
- 239000012528 membrane Substances 0.000 claims description 5
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical group CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 7
- 238000004806 packaging method and process Methods 0.000 abstract description 7
- 239000010410 layer Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 9
- 230000004927 fusion Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000000452 restraining effect Effects 0.000 description 7
- 239000011888 foil Substances 0.000 description 6
- 238000009459 flexible packaging Methods 0.000 description 5
- 238000012856 packing Methods 0.000 description 5
- 239000004594 Masterbatch (MB) Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000012785 packaging film Substances 0.000 description 4
- 229920006280 packaging film Polymers 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 238000000071 blow moulding Methods 0.000 description 2
- 238000003851 corona treatment Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 239000004712 Metallocene polyethylene (PE-MC) Substances 0.000 description 1
- 244000227633 Ocotea pretiosa Species 0.000 description 1
- 235000004263 Ocotea pretiosa Nutrition 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000012748 slip agent Substances 0.000 description 1
Landscapes
- Wrappers (AREA)
Abstract
The invention discloses a self-lubricating polyethylene film which comprises an outer layer, a middle layer and an inner layer, wherein the outer layer comprises low-density polyethylene and linear low-density polyethylene in a weight ratio of 1: 0.5-2, the middle layer comprises low-density polyethylene and linear low-density polyethylene in a weight ratio of 1: 0.5-5, and the inner layer comprises low-density polyethylene, linear low-density polyethylene, metallocene linear low-density polyethylene, a slipping agent and an auxiliary agent in a weight ratio of 1: 0.5-2: 1-2: 0.01-0.02: 0.05-0.2. Compared with the prior art, the invention has the advantages of accurate and stable friction coefficient, good transparency and glossiness, and can realize the matching packaging effect with a quick automatic packaging machine.
Description
One, technical field
The present invention relates to a kind of flexible packaging film, exactly is a kind of self-lubricating polyethylene membrane.
Two, background technology
Along with expanding economy, the raising of production mechanization degree, the application producer of most of flexible packaging films has all introduced High-Speed Automatic packaging facilities to realize the automation of packing on the market, reduces cost of labor.Existing flexible packaging film (bag) is many all to be to adopt poly-vinyl (PE) film as hot sealing layer; When flexible packaging film moves on automatic packaging machine; The whether smooth and easy contact surface that depends on film and automatic packaging machine that it walks film also is the internal layer (hot sealing layer) of film.If the friction coefficient of inner layer polyethylene film is higher, then can cause flexible packing material to walk film not smooth, reduce production efficiency, if friction coefficient is on the low side, then can cause the film sideslip, take place improper packingly, fraction defect increases.
Existing product: be to realize the control of friction coefficient one, through adding the inorganic anti adhesion agent.But the polyethylene foil poor transparency that this way is produced, the glossiness degree is low, is not suitable for the packing of expensive goods.Two, be to realize the control of friction coefficient through adding organic type of slipping agent.Homemade slipping agent masterbatch kind has SE07PE etc.But because organic type of slipping agent is added in the polyethylene foil, be the process of " separating out at a slow speed ", after the acquisition of final friction coefficient will be placed 7-10 days, often have rub sassafras Coefficient Control inaccuracy and unsettled phenomenon.Therefore, need badly want a kind of not only friction coefficient precise and stable and also again diaphaneity replace existing product with the good polyethylene foil of glossiness, realize and the auxiliary package effect of fast automatic wrapping machine.
Three, summary of the invention
The present invention aims to provide the polyethylene foil that a kind of high-grade flexible packaging is used, and technical matters to be solved is the high transparent polyethylene foil that this film has self-lubricating effect.So-called self-lubricating effect is meant that the friction coefficient of film is precisely stable and controlled.
The technical scheme of technical solution problem of the present invention is: the high cellothene of self-lubricating is made up of skin, middle level, internal layer.
Described skin is made up of low density polyethylene (LDPE) (LDPE), linear low density polyethylene (LLDPE), and the weight ratio of LDPE:LLDPE is: 1: 0.5-2;
Described middle level is made up of low density polyethylene (LDPE) (LDPE), linear low density polyethylene (LLDPE), and the weight ratio of LDPE:LLDPE is: 1: 0.5-2;
Described internal layer comprises low density polyethylene (LDPE) (LDPE), linear low density polyethylene (LLDPE), metallocene linear-low density polyethylene (MLLDPE), slipping agent, auxiliary agent, and its weight ratio is: LDOE:LLDPE:MLLDPE: slipping agent: auxiliary agent is 1: 0.5-2: 1-2: 0.01-0.02: 0.05-0.2.
Described slipping agent is erucyl amide or other slipping agents that can replace erucyl amide, adds with master batch form, and the weight percentage of effective ingredient is 5～8% in the masterbatch, particle diameter: the 4-8 micron.
Described auxiliary agent is selected from ABPE15N or the ABPE20S that French precious Need Inc. produces.
The present invention uses known multi-layer co-extruded blow moulding equipment and processes self-lubricating polyethylene membrane, comprises following operation: upward material process, material plasticizing are extruded operation, inflation traction operation, vane refrigerating work procedure, herringbone clamping plate operation, nip rolls traction operation, sided corona treatment operation, film take-up operation.Extrude in the operation at material plasticizing, processing temperature of the present invention will exceed 5 deg.c, and its purpose is to impel the even dispersion of master batch on film that contains slipping agent.
The one side of the content direct contact of internal layer of the present invention and packing is made up of the metallocene polyethylene material copolymerization of the poly-vinyl that contains slip agent, raising low-temperature heat-sealing performance.Skin is the one side compound with other film, and interlayer plays the effect of the physical and mechanical properties of filling effect and enhancement film.
The present invention compared with prior art, have that friction coefficient is precise and stable, film clarity is high, with the modern adaptable characteristics of automatic packaging machinery support, can really play the effect that improves packing production efficiency.
Four, the specific embodiment
Non-limiting examples is stated as down:
The used LDPE of present embodiment ectomesoderm is produced by Exxon Mobil Corporation, and index is: fusion index (restraining/10 minutes): 1.2-2.2, density (gram/cm3): 0.923-0.933;
Outer used LLDPE is produced by Exxon Mobil Corporation, and index is: fusion index (restraining/10 minutes): 0.5-1.0, density (gram/cm3): 0.918-0.925;
The used LDPE of interlayer is produced by Dow Chemical, and index is: fusion index (restraining/10 minutes): 1.0-1.7, density (gram/cm3): 0.918-0.927;
The used LLDPE of interlayer is produced by China Petrochemical Industry Company, and index is: fusion index (restraining/10 minutes): 1.0-2.0, density (gram/cm3): 0.918-0.925;
The used LDPE of internal layer is produced by Exxon Mobil Corporation, and index is: fusion index (restraining/10 minutes): 0.5-1.5, density (gram/cm3): 0.918-0.925;
The used LLDPE of internal layer is produced by Exxon Mobil Corporation, and index is: fusion index (restraining/10 minutes): 0.5-1.8, density (gram/cm3): 0.918-0.925;
The used MLLDPE of internal layer is produced by Mitsui Chemicals company, and index is:: fusion index (restraining/10 minutes): 1.0-1.8, density (gram/cm3): 0.918-0.927;
Slipping agent is 10090-K, and company produces by the peace color matching, and effective constituent is 5.5%, through the FDA authentication.
Auxiliary agent is ABPE15N
Equipment uses model to be M3B-1500Q, production company: the bright Co., Ltd of Guangdong gold.
This polyethylene foil friction coefficient detects according to GB10006-88 standard " plastic sheeting and thin slice measuring friction coefficient method ".
Heat seal strength detects according to QB/T 2358-1998 " plastic film packaging bag heat sealing strength test method " standard;
Surface tension detects according to GB/T 14216-1993 standard;
Light transmittance detects according to GB2410-80 standard " transparent plastic material light transmittance and mist degree test method ".
Embodiment 1:
Get each 1 part and 1.2 parts of LDPE and the LLDPE of outer usefulness; Get each 1 part of the LDPE that uses in the middle level and LLDPE; Get 1 part of the LDPE that internal layer uses, 1 part of LLDPE, 1.5 parts of MLLDPE, 0.015 part of 10090-K, ABPE15N0.1 part.
The material of proportioning is produced film with multi-layer co-extruded blow moulding equipment by following operation, and last material process, material plasticizing are extruded operation, inflation traction operation, vane refrigerating work procedure, herringbone clamping plate operation, nip rolls traction operation, sided corona treatment operation, film take-up operation:
This film sees the following form with the performance of common polythene film:
Claims (2)
1. a self-lubricating polyethylene membrane is made up of skin, middle level and internal layer, it is characterized in that:
Described skin comprises that weight ratio is 1: the low density polyethylene (LDPE) of 0.5-2 and linear low density polyethylene;
Described middle level comprises that weight ratio is 1: the low density polyethylene (LDPE) of 0.5-2 and linear low density polyethylene;
Described internal layer comprises that weight ratio is 1: the low density polyethylene (LDPE) of 0.5-2: 1-2: 0.01-0.02: 0.05-0.2, linear low density polyethylene, metallocene linear-low density polyethylene, slipping agent and auxiliary agent, described auxiliary agent is selected from ABPE15N or ABPE20S.
2. self-lubricating polyethylene membrane according to claim 1 is characterized in that: described slipping agent is selected from erucyl amide or can replaces other slipping agents of erucyl amide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101161122A CN101475074B (en) | 2009-01-22 | 2009-01-22 | Self-lubricating polyethylene film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101161122A CN101475074B (en) | 2009-01-22 | 2009-01-22 | Self-lubricating polyethylene film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101475074A CN101475074A (en) | 2009-07-08 |
| CN101475074B true CN101475074B (en) | 2012-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101161122A Expired - Fee Related CN101475074B (en) | 2009-01-22 | 2009-01-22 | Self-lubricating polyethylene film |
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| Country | Link |
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| CN (1) | CN101475074B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109648899A (en) * | 2019-01-21 | 2019-04-19 | 河南省银丰塑料有限公司 | A kind of polyethylene flour bag packaging dedicated film |
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| CN102218875B (en) * | 2011-03-31 | 2014-05-28 | 常州市嘉鹏塑料制品有限公司 | Anti-adhesion medical composite film |
| CN102423947A (en) * | 2011-08-03 | 2012-04-25 | 大连方盛塑料有限公司 | Chocolate food packaging plastic base material film and production process thereof |
| CN102380996B (en) * | 2011-08-03 | 2015-09-30 | 大连瑞贤达塑胶有限公司 | A kind of food package plastic base material film and production technology thereof |
| CN102423946A (en) * | 2011-08-03 | 2012-04-25 | 大连方盛塑料有限公司 | Food packaging plastic base material film and production process thereof |
| CN102416744B (en) * | 2011-08-03 | 2015-09-30 | 大连瑞贤达塑胶有限公司 | A kind of food package plastic base material film and production technology thereof |
| CN102501528A (en) * | 2011-11-09 | 2012-06-20 | 大连富利达塑料制品有限公司 | Odourless film for food packaging |
| CN103252961B (en) * | 2012-02-21 | 2016-02-24 | 中国石油化工股份有限公司 | A kind of polyethylene film and preparation method thereof |
| CN103252963B (en) * | 2012-02-21 | 2016-04-27 | 中国石油化工股份有限公司 | A kind of polyethylene film and preparation method thereof |
| CN106147634A (en) * | 2015-03-30 | 2016-11-23 | 常熟市新明宇塑胶有限公司 | A kind of three-layer co-extruded blown film glued membrane and preparation technology thereof |
| CN109747253A (en) * | 2017-11-07 | 2019-05-14 | 长沙银腾塑印包装有限公司 | A kind of blow molding PE film and its production method |
| CN108422732A (en) * | 2018-02-13 | 2018-08-21 | 惠州市合晶光电科技有限公司 | The formula and preparation method thereof of the low self-adhesion PE films of Electrostatic Absorption for air valve |
| CN108773137B (en) * | 2018-06-25 | 2019-10-15 | 青岛东海包装产业有限公司 | Automatically it is packed for polyethylene film and preparation method thereof |
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| WO2007140854A1 (en) * | 2006-06-09 | 2007-12-13 | Exxonmobil Chemical Patents Inc. | Transparent coextruded films and processes for making such films |
| EP1899162A1 (en) * | 2005-07-01 | 2008-03-19 | Bollore | Multilayer film |
| CN101255249A (en) * | 2008-02-19 | 2008-09-03 | 中国石化扬子石油化工有限公司 | Polyethylene repackaging film material composition |
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2009
- 2009-01-22 CN CN2009101161122A patent/CN101475074B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1157210A (en) * | 1995-12-06 | 1997-08-20 | 潘塔卡斯脱有限公司 | Polyethylene multilayer film |
| CN2262007Y (en) * | 1996-05-29 | 1997-09-10 | 杭州轻工塑料厂 | High Strength multilayer film for liquid package |
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| EP1899162A1 (en) * | 2005-07-01 | 2008-03-19 | Bollore | Multilayer film |
| WO2007140854A1 (en) * | 2006-06-09 | 2007-12-13 | Exxonmobil Chemical Patents Inc. | Transparent coextruded films and processes for making such films |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109648899A (en) * | 2019-01-21 | 2019-04-19 | 河南省银丰塑料有限公司 | A kind of polyethylene flour bag packaging dedicated film |
| CN109648899B (en) * | 2019-01-21 | 2020-12-15 | 河南省银丰塑料有限公司 | Special film for packing polyethylene flour bags |
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| Publication number | Publication date |
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| CN101475074A (en) | 2009-07-08 |
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