CN101428699B - Heat sealing type biaxial-tension polypropylene film - Google Patents
Heat sealing type biaxial-tension polypropylene film Download PDFInfo
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- CN101428699B CN101428699B CN2008101774644A CN200810177464A CN101428699B CN 101428699 B CN101428699 B CN 101428699B CN 2008101774644 A CN2008101774644 A CN 2008101774644A CN 200810177464 A CN200810177464 A CN 200810177464A CN 101428699 B CN101428699 B CN 101428699B
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- heat
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- polypropylene
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- polypropylene film
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- 238000007789 sealing Methods 0.000 title claims abstract description 71
- -1 polypropylene Polymers 0.000 title claims abstract description 44
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 42
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 42
- 229920001577 copolymer Polymers 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical group CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 claims description 9
- 229920005629 polypropylene homopolymer Polymers 0.000 claims description 9
- 239000012748 slip agent Substances 0.000 claims description 9
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims description 5
- 239000000470 constituent Substances 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 229920002545 silicone oil Polymers 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims 2
- 239000002131 composite material Substances 0.000 abstract description 4
- 239000012793 heat-sealing layer Substances 0.000 abstract 2
- 239000012775 heat-sealing material Substances 0.000 abstract 2
- 239000002216 antistatic agent Substances 0.000 abstract 1
- 229920001222 biopolymer Polymers 0.000 abstract 1
- 239000012792 core layer Substances 0.000 abstract 1
- 238000005034 decoration Methods 0.000 abstract 1
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 239000002344 surface layer Substances 0.000 abstract 1
- 229920001897 terpolymer Polymers 0.000 abstract 1
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 23
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 23
- 239000011248 coating agent Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 9
- 238000012856 packing Methods 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 7
- 238000003851 corona treatment Methods 0.000 description 7
- 239000003814 drug Substances 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 4
- 230000002457 bidirectional effect Effects 0.000 description 4
- 235000013305 food Nutrition 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- 238000003854 Surface Print Methods 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 238000012660 binary copolymerization Methods 0.000 description 3
- 239000005025 cast polypropylene Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 3
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920006280 packaging film Polymers 0.000 description 2
- 239000012785 packaging film Substances 0.000 description 2
- 239000005033 polyvinylidene chloride Substances 0.000 description 2
- 239000005439 thermosphere Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 235000021404 traditional food Nutrition 0.000 description 1
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Abstract
A heat-sealing type two-way stretching polypropylene film is prepared by forming a heat-sealing layer with a heat-sealing strength on the surface layer of the two-way stretching polypropylene film bya co-extrusion process. The heat-sealing layer can be formed above or below the two-way stretching polypropylene film, or formed on both the upper and the lower surfaces of two-way stretching polypropylene film at the same time. The adopted heat-sealing material comprises mixing materials of heat-sealing type materials like biopolymer polypropylene or terpolymer polypropylene, propylene-butylene copolymer or known alkene copolymer and the like; heat-sealing materials like 3% to 60% of propylene butylene copolymer or known alkene copolymer and the like, or elastic body, 40% to 97% of homopolymerization polypropylene, and 1% to 20% of an anti-static agent are added to a core layer. The interface heat-seal package or the couple-seal package can be directly performed to the product without being compounded with the PE or CPP heat-sealing film; the surface of the product can be printed and coated, or coated after being printed according to the operating requirements; the product integratespackage and decoration as a whole, and can replace partial composite products. The product has the remarkable advantage of low cost, and reduces the environmental pollution.
Description
The present invention relates to a kind of heat sealing type biaxial-tension polypropylene film.This product need not with heat-sealing films such as polyethylene or cast polypropylenes compound, can directly take mouthful heat sealed package or package is adorned, back coating etc. can be printed, is coated with or printed in the surface, this product integrates packing, decoratees, can replace the compound product of part, have significant low-cost advantage, reduced pollution simultaneously environment.
At present, traditional packing film material needs with the polyethylene with high heat-sealing strength or cast polypropylene could satisfy the heat-sealing requirement of packing after compound when being applied to packing such as food, medicine basically, and recombination process relates to the increase of investment goods, compound used glue and solvent, processes such as slaking, when increasing productive costs greatly, environment is caused certain pollution.As seen, existing technology has not met the industry policy of building a conservation-minded society, and the environmental issue that causes especially thus becomes the focus that industry is paid close attention to day by day.
Background technology
At present traditional food, medicine is compound can not satisfy the high request of current society to environmental protection with packaging film, the high problem of productive costs simultaneously.Traditional Biaxially oriented polypropylene heat-sealing film, its heat seal strength≤4N/15mm can not be used to replace existing Biaxially oriented polypropylene composite polyethylene or cast polypropylene.The object of the present invention is to provide a kind of later-model bidirectional stretching polypropylene film with excessive heat sealing strength, its heat seal strength is 5-15N/15mm, need not with polyethylene or the compound heat-sealing requirement that can satisfy packing of cast polypropylene, directly bag is used for packings such as food, medicine, replace the compound package material that present part food, medicine etc. use, when reducing production costs greatly, solved the environmental issue of conventional composite packaging film.Can print at film surface in addition, also can be coated with various barrier coating on the surface, improve the barrier property of film, satisfy the higher packing requirements of product, be the environmentally friendly packing material that industries such as present food, medicine are pursued.
Summary of the invention
The present invention solves the technical scheme that its technical matters takes: form the hot sealing layer with high heat-sealing strength on the bidirectional stretching polypropylene film top layer by coextrusion process, the thickness of extruding of this hot sealing layer is the 1-10 micron, this hot sealing layer can be also can be below on bidirectional stretching polypropylene film, also can exist simultaneously in the bidirectional stretching polypropylene film upper and lower surfaces.Used heat-sealable material comprises the composite material of two yuan of Co-polypropylene or ternary polymerized polypropylene, third rare-butylene copolymer or known heat-sealable materials such as olefin copolymer; Add heat-sealing type material such as 3%-60% third rare-butylene copolymer or known olefin copolymer or elastic body, 40%-97% homo-polypropylene, 0%-20% antistatic additive in the sandwich layer.
In described each hot sealing layer, third rare-butylene copolymer or the known shared percentum of olefin copolymer heat-sealable material are 93-5%;
In described each hot sealing layer, two yuan of Co-polypropylene or the shared percentum of ternary polymerized polypropylene are 5%-93%;
In described each hot sealing layer, contain antiblocking agent, the effective constituent of SIO2 that is added or known antiblocking agent is 100-3000PPM;
In described each hot sealing layer, contain slipping agent, the effective constituent of erucic amide slipping agent that is added or silicone or silicone oil or known slipping agent is 100-20000PPM;
Described hot sealing layer, every layer the thickness of extruding is the 1-10 micron;
Described heat sealing type biaxial-tension polypropylene film can print, be coated with or print the back coating on the arbitrary face of film by customer requirement.
Fig. 1 is first kind of example structure figure of heat sealing type biaxial-tension polypropylene film of the present invention;
Description of drawings
Fig. 2 is second kind of example structure figure of heat sealing type biaxial-tension polypropylene film of the present invention;
Fig. 3 is the third example structure figure of heat sealing type biaxial-tension polypropylene film of the present invention;
Fig. 4 is the 4th kind of example structure figure of heat sealing type biaxial-tension polypropylene film of the present invention;
Fig. 5 is the 5th kind of example structure figure of heat sealing type biaxial-tension polypropylene film of the present invention.
Fig. 6 is the 6th kind of example structure figure of heat sealing type biaxial-tension polypropylene film of the present invention.
Fig. 7 is the 7th kind of example structure figure of heat sealing type biaxial-tension polypropylene film of the present invention.
The specific embodiment
Embodiment one: adopt coextrusion process to produce 35 microns BOPP films, wherein be added with the anti-stick slip agent (effective content is `1500PPM) that connects of 47% ternary polymerized polypropylene, 50% the third rare-butylene copolymers and 3% siliceous lime and erucyl amide class on 1 top layer of BOPP film, the thickness of extruding on this top layer is 2 microns, forms hot sealing layer 1; The homo-polypropylene that adds 15% the third rare-butylene copolymers and 85% in sandwich layer forms sandwich layer 2; And non-hot sealing layer 3 carried out corona treatment, and the same day, processing costs was 41 dyne, and the BOPP film that makes has good heat sealability, is 130 ℃ at heat-sealing temperature, and its heat seal strength is 9N/15mm during 0.3 second heat-sealing time.
Embodiment two: adopt coextrusion process to produce 35 microns BOPP films, wherein all be added with the anti-stick slip agent (effective content is 1500PPM) that connects of 84% ternary polymerized polypropylene, 13% the third rare-butylene copolymers and 3% erucyl amide class on two top layers of BOPP film, the thickness of extruding on two top layers is 3 microns, forms hot sealing layer 4 and hot sealing layer 6; The homo-polypropylene that adds 10% the third rare-butylene copolymers and 90% in sandwich layer forms sandwich layer 5; And two hot sealing layers are carried out corona treatment, and the same day, processing costs was 41 dyne, the pattern that the client needs on arbitrary hot sealing layer surface printing, and in this printing surface coating modified polyvinylalcohol (PVOH) coating.The BOPP film that makes has the oxygen barrier property of fabulous heat sealability and superelevation, is 130 ℃ at heat-sealing temperature, and its heat seal strength is 11N/15mm during 0.3 second heat-sealing time; When the PVOH coating is 3um, the transit dose≤1.0ml/m of its oxygen when 0%, 23 ℃ of relative humidity
2.24hr.
Embodiment three: adopt coextrusion process to produce 35 microns BOPP films, wherein be added with 25% binary copolymerization polypropylene, 60% ternary polymerized polypropylene, 12% with third rare-butylene copolymer and the anti-stick slip agent (effective content is 1500PPM) that connects of 3% erucyl amide class on 1 top layer of BOPP film, the thickness of extruding on this top layer is 2 microns, forms hot sealing layer 7; Non-hot sealing layer 9 is carried out corona treatment, and the same day, processing costs was 41 dyne, and the homo-polypropylene that adds 15% the third rare-butylene copolymers and 85% in sandwich layer forms sandwich layer 8; And in the surface of non-thermosphere 9 coating PVDC coating.The BOPP film that makes has good heat sealability and oxygen, aqueous vapor barrier property, is 130 ℃ at heat-sealing temperature, and its heat seal strength is 8N/15mm during 0.3 second heat-sealing time; When the PVDC coating is 3um, its steam penetrating capacity≤4.8g/m when 90%, 38 ℃ of relative humidity
2.24hr; Transit dose≤the 25ml/m of its oxygen when 0%, 23 ℃ of relative humidity
2.24hr.
Embodiment four: adopt coextrusion process to produce 35 microns BOPP films, wherein all be added with the anti-stick slip agent (effective content is 1500PPM) that connects of binary copolymerization polypropylene 17%, 50% ternary polymerized polypropylene, 30% the third rare-butylene copolymers and 3% erucyl amide class on two top layers of BOPP film, the thickness of extruding on two top layers is 3 microns, form hot sealing layer 10 and hot sealing layer 12, two hot sealing layers are carried out corona treatment, the same day, processing costs was 41 dyne, and the homo-polypropylene that adds 15% the third rare-butylene copolymers and 85% in sandwich layer forms sandwich layer 11; The pattern that needs the surface printing client of arbitrary hot sealing layer.The BOPP film that makes has good heat sealability, is 130 ℃ at heat-sealing temperature, and its heat seal strength is 9N/15mm during 0.3 second heat-sealing time.
Embodiment five: adopt coextrusion process to produce 35 microns BOPP films, wherein be added with 17% binary copolymerization polypropylene, 50% ternary polymerized polypropylene, 30% the third rare-butylene copolymer and the anti-stick slip agents (effective content is 1000PPM) that connect of 2% erucyl amide class on 1 top layer of BOPP film, the thickness of extruding on this top layer is 6 microns, forms hot sealing layer 13; The homo-polypropylene that adds 20% the third rare-butylene copolymers and 80% in sandwich layer forms sandwich layer 14; Non-hot sealing layer 15 is carried out corona treatment, and the same day, processing costs was 41 dyne, and the pattern that needs the surface printing client of non-thermosphere 15.The BOPP film that makes has good heat sealability, is 130 ℃ at heat-sealing temperature, and its heat seal strength is 11N/15mm during 0.3 second heat-sealing time.
Embodiment six: adopt coextrusion process to produce 35 microns BOPP films, wherein be added with the anti-stick slip agent (effective content is 1500PPM) that connects of 57% ternary polymerized polypropylene, 40% the third rare-butylene copolymers and 3% siliceous lime and erucyl amide class on 1 top layer of BOPP film, the thickness of extruding on this top layer is 1 micron, forms hot sealing layer 16; The homo-polypropylene that adds 20% the third rare-butylene copolymers and 80% in sandwich layer forms sandwich layer 17; And non-hot sealing layer 18 carried out corona treatment, and the same day, processing costs was 41 dyne, and the BOPP film that makes has good heat sealability, is 130 ℃ at heat-sealing temperature, and its heat seal strength is 9N/15mm during 0.3 second heat-sealing time.
Embodiment seven: adopt coextrusion process to produce 35 microns BOPP films, wherein be added with the anti-stick slip agent (effective content is 1500PPM) that connects of 37% ternary polymerized polypropylene, 60% the third rare-butylene copolymers and 3% siliceous lime and erucyl amide class on 1 top layer of BOPP film, the thickness of extruding on this top layer is 10 microns, forms hot sealing layer 19; The homo-polypropylene that adds 30% the third rare-butylene copolymers and 70% in sandwich layer forms sandwich layer 20; And non-hot sealing layer 21 carried out corona treatment, and the same day, processing costs was 41 dyne, and the BOPP film that makes has good heat sealability, is 130 ℃ at heat-sealing temperature, and its heat seal strength is 9N/15mm during 0.3 second heat-sealing time.
Claims (4)
1. heat sealing type biaxial-tension polypropylene film, comprise sandwich layer and hot sealing layer, it is characterized in that: described hot sealing layer is to make by coextrusion process with heat-sealable material, and heat-sealable material is mixed with by the raw material that contains following content: two yuan of Co-polypropylene or ternary polymerized polypropylene 5%-93%, third rare-butylene copolymer or known olefin copolymer 93%-5%, antiblocking agent 1%-10%, slip agent 1%-15%; Described sandwich layer is mixed with by the raw material that contains following content: 3%-60% third rare-butylene copolymer or known olefin copolymer or elastic body, 40%-97% homo-polypropylene, 0%-20% antistatic additive.
2. heat sealing type biaxial-tension polypropylene film according to claim 1 is characterized in that: hot sealing layer can exist simultaneously at arbitrary of film or two faces.
3. heat sealing type biaxial-tension polypropylene film according to claim 1 is characterized in that: the thickness of extruding that hot sealing layer is every layer is the 1-10 micron;
4. according to claim 1 or 2 or 3 described heat sealing type biaxial-tension polypropylene films, it is characterized in that: described antiblocking agent is SIO2 or known antiblocking agent, effective constituent is 100-3000PPM, slip agent is erucic amide slipping agent or silicone or silicone oil or known slipping agent, and effective constituent is 100-20000PPM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101774644A CN101428699B (en) | 2007-12-27 | 2008-11-28 | Heat sealing type biaxial-tension polypropylene film |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710305359.X | 2007-12-27 | ||
| CNA200710305359XA CN101214867A (en) | 2007-12-27 | 2007-12-27 | Ultra-high heat sealing strength BOPP thin film |
| CN2008101774644A CN101428699B (en) | 2007-12-27 | 2008-11-28 | Heat sealing type biaxial-tension polypropylene film |
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| Publication Number | Publication Date |
|---|---|
| CN101428699A CN101428699A (en) | 2009-05-13 |
| CN101428699B true CN101428699B (en) | 2010-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200710305359XA Pending CN101214867A (en) | 2007-12-27 | 2007-12-27 | Ultra-high heat sealing strength BOPP thin film |
| CN2008101774644A Active CN101428699B (en) | 2007-12-27 | 2008-11-28 | Heat sealing type biaxial-tension polypropylene film |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200710305359XA Pending CN101214867A (en) | 2007-12-27 | 2007-12-27 | Ultra-high heat sealing strength BOPP thin film |
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Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864109B (en) * | 2010-06-02 | 2012-07-25 | 王锦江 | Composite type smooth master batch for BOPP film and production technique thereof |
| CN101913279B (en) * | 2010-07-08 | 2014-02-19 | 福建凯达印务有限公司 | Toughening type three-layer coextru-laminated film and preparation method thereof |
| CN102173149B (en) * | 2011-01-07 | 2013-04-24 | 广州永新包装有限公司 | Antibacterial composite film used for vacuum packing of household articles and preparation method thereof |
| CN103009751B (en) * | 2012-12-25 | 2015-04-22 | 海南赛诺实业有限公司 | Biaxial stretching polypropylene high heat-seal film and manufacturing method thereof |
| CN103009749A (en) * | 2012-12-25 | 2013-04-03 | 海南赛诺实业有限公司 | Biaxially oriented polypropylene membrane with high heat-sealing strength, and manufacturing method thereof |
| CN104309237B (en) * | 2014-10-22 | 2017-03-01 | 海南赛诺实业有限公司 | A kind of high heat-sealing strength biaxially oriented polypropylene film and its manufacture method |
| CN104786611A (en) * | 2015-03-29 | 2015-07-22 | 安徽松泰包装材料有限公司 | PE film production process |
| CN105415824A (en) * | 2015-11-23 | 2016-03-23 | 安徽国泰印务有限公司 | High-quality BOPP thin film and production technology thereof |
| CN107804039B (en) * | 2017-10-30 | 2020-03-20 | 云南昆岭薄膜工业有限公司 | Aluminum-plated printed composite packaging film for cigarettes and preparation method thereof |
| CN110305600A (en) * | 2019-05-27 | 2019-10-08 | 黄山永新股份有限公司 | A kind of lightweight high-speed packaging film and its production technology that adjustable point heat-sealing is recyclable |
| WO2021074927A1 (en) * | 2019-10-16 | 2021-04-22 | Max Speciality Films Ltd. | Biaxially oriented polypropylene film with enhanced heat seal strength and method of manufacturing thereof |
| CN112519366A (en) * | 2020-11-30 | 2021-03-19 | 重庆市金利药包材料有限公司 | Biaxially oriented polypropylene low-density polyethylene medical composite film bag |
| CN112677610A (en) * | 2020-12-30 | 2021-04-20 | 大连大富塑料彩印有限公司 | Ultra-low temperature heat-sealing type curtain coating polypropylene aluminized substrate film |
| CN113696582B (en) * | 2021-09-06 | 2023-04-25 | 东莞市博晨塑料科技有限公司 | High-strength corrosion-resistant co-extrusion film and preparation method thereof |
| CN114103348B (en) * | 2021-11-22 | 2023-03-14 | 四川大学 | Multilayer composite BOPE capacitor film and preparation method thereof |
-
2007
- 2007-12-27 CN CNA200710305359XA patent/CN101214867A/en active Pending
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2008
- 2008-11-28 CN CN2008101774644A patent/CN101428699B/en active Active
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| Publication number | Publication date |
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| CN101214867A (en) | 2008-07-09 |
| CN101428699A (en) | 2009-05-13 |
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