CN101758959A - Five-layer co-extrusion high barrier liquid packaging film and preparation method thereof - Google Patents
Five-layer co-extrusion high barrier liquid packaging film and preparation method thereof Download PDFInfo
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- CN101758959A CN101758959A CN200910247702A CN200910247702A CN101758959A CN 101758959 A CN101758959 A CN 101758959A CN 200910247702 A CN200910247702 A CN 200910247702A CN 200910247702 A CN200910247702 A CN 200910247702A CN 101758959 A CN101758959 A CN 101758959A
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- 239000012785 packaging film Substances 0.000 title claims abstract description 30
- 229920006280 packaging film Polymers 0.000 title claims abstract description 30
- 239000007788 liquid Substances 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 238000001125 extrusion Methods 0.000 title claims abstract description 6
- 230000004888 barrier function Effects 0.000 title abstract description 8
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 20
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 20
- -1 polyethylene Polymers 0.000 claims abstract description 17
- 239000012748 slip agent Substances 0.000 claims abstract description 15
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 14
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 14
- 239000004698 Polyethylene Substances 0.000 claims abstract description 12
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920000573 polyethylene Polymers 0.000 claims abstract description 12
- 229920003048 styrene butadiene rubber Polymers 0.000 claims abstract description 10
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims abstract description 8
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 8
- 229920000092 linear low density polyethylene Polymers 0.000 claims abstract description 8
- 239000004707 linear low-density polyethylene Substances 0.000 claims abstract description 8
- 229920001526 metallocene linear low density polyethylene Polymers 0.000 claims abstract description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000001301 oxygen Substances 0.000 claims abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 38
- 238000007789 sealing Methods 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000010410 layer Substances 0.000 abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000012793 heat-sealing layer Substances 0.000 abstract 2
- 230000035699 permeability Effects 0.000 abstract 2
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 description 9
- 238000007639 printing Methods 0.000 description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000008267 milk Substances 0.000 description 3
- 210000004080 milk Anatomy 0.000 description 3
- 235000013336 milk Nutrition 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 238000004587 chromatography analysis Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003205 fragrance Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019219 chocolate Nutrition 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910021432 inorganic complex Inorganic materials 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 description 1
- FATBGEAMYMYZAF-UHFFFAOYSA-N oleicacidamide-heptaglycolether Natural products CCCCCCCCC=CCCCCCCCC(N)=O FATBGEAMYMYZAF-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 235000021485 packed food Nutrition 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 210000000697 sensory organ Anatomy 0.000 description 1
- 235000013599 spices Nutrition 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- MEYZYGMYMLNUHJ-UHFFFAOYSA-N tunicamycin Natural products CC(C)CCCCCCCCCC=CC(=O)NC1C(O)C(O)C(CC(O)C2OC(C(O)C2O)N3C=CC(=O)NC3=O)OC1OC4OC(CO)C(O)C(O)C4NC(=O)C MEYZYGMYMLNUHJ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Wrappers (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to five-layer co-extrusion high barrier liquid packaging film and a preparation method thereof. The packaging film comprises a printed layer, a bonding layer, a high barrier layer, another bonding layer and a heat sealing layer in sequence from outside to inside. The packaging film is characterized in that the oxygen permeability coefficient of the packaging film in the condition of 24 h and 0.1MPa is not larger than 12000m3/m2, and the water vapor permeability coefficient is not larger than 2g/m2. According to weight percentage, the packaging film comprises the following components: 18-22 percent of low-density polyethylene, 8-10 percent of white masterbatch of polyethylene, 12-16 percent of linear low-density polyethylene and 1-1.5 percent of slip agent in the printed layer; 4-5 percent of acrylonitrile-styrene-butadiene copolymer in the bonding layer; 6-10 percent of ethylene-vinyl alcohol copolymer and 8-12 percent of black masterbatch of polyethylene in the high barrier layer; 4-5 percent of acrylonitrile-styrene-butadiene copolymer in the second bonding layer; 8-12 percent of high-density polyethylene, 10-14 percent of linear low-density polyethylene, 6-10 percent of metallocene linear low-density polyethylene and 1-1.5 percent of slip agent in the heat sealing layer.
Description
Technical field
The present invention relates to the plastic membrane product field, for being used for the co-extrusion film material of flexible package punch, especially a kind of five-layer co-squeezing high-barrier liquid packaging film material and preparation method thereof.
Background technology
Packing for liquid mainly contain following ask for something:
1, smooth property:
The surfaces externally and internally of film should have good smooth property, can successfully carry out on High-Speed Automatic bottle placer to guarantee it.Mainly realize that by adding slip agent slip agent is amides compound normally, as oleamide or erucyl amide, or the inorganic complex of Polymer, can reduce the friction coefficient of film significantly,
2, tensile property:
In the pouring process of liquid, plastic sheeting need bear the effect of mechanical pulling force, require film must have enough pulling strengrths, prevent under the automatic filling machine tension, to be out of shape or to be broken, generally speaking, linear low density polyethylene (LLDPE), high density polyethylene (HDPE) wait and promote pulling strengrth preferably can to select pulling strengrth for use in film formulation.
3, barrier property:
Require packing to have resistance oxygen, resistance light, protection against the tide, guarantor's perfume (or spice), anti-peculiar smell function, select barrier material according to different contents, shelf-life, production facilities, storage requirement etc.To guarantee that bacterium in the external environment condition, dust, gas, light, moisture content etc. can not enter in the packaging bag on the one hand; Be the good stabilities of requirement packing own on the other hand, do not absorb peculiar smell, the difficult migration of little molecule; Be institute's water content, grease, fragrance ingredient in the assurance milk in addition, the requisite one-tenth of product design is graded not to exosmosis, thereby reach packaged food stay-in-grade purpose.
China publication number CN1724254 discloses just coextrusion blow film once of a kind of high-barrier, the even numbers layer is corresponding jointing material, a kind of in polyethylene (comprising high density polyethylene (HDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), metallocene PE), polypropylene, polyamide, polyethylene terephthalate, the polystyrene selected on the top layer for use, and ethylene-vinyl alcohol copolymer is a barrier material.
China publication number CN1760087 discloses the compound high-barrier liquid packaging film of a kind of five-layer co-squeezing, in every tunic layer, all adopt hybrid resin, do not need to add in addition adhesives, be composited by molten condition, its inner and outer surface layers is the compound of low density polyethylene (LDPE) and linear low density polyethylene (LLDPE), interlayer is the compound of polyvinylidene chloride, linear low density polyethylene (LLDPE) and ethylene-vinyl acetate copolymer, and internal layer is low density polyethylene (LDPE), linear low density polyethylene (LLDPE) and metallocene PE.
China publication number CN101100123 discloses a kind of seven-layer co-extrusion high-isolating packaging film equally, ground floor and layer 7 are the hybrid resin of linear low density polyethylene (LLDPE) and low density polyethylene (LDPE) and add slip agent, the second layer and layer 6 are the hybrid resin of polyethylene masterbatch, linear low density polyethylene (LLDPE) and low density polyethylene (LDPE), and (second layer is a white master material, layer 6 is used for shading for the black masterbatch), the 3rd layer and layer 5 are adhesives, and the 4th layer is ethylene-vinyl alcohol copolymer.
Summary of the invention
The five-layer co-squeezing high-barrier liquid packaging film material that provides a kind of every index all to be better than existing product is provided technical matters to be solved by this invention.
Another technical matters to be solved by this invention is to provide the preparation method of above-mentioned five-layer co-squeezing high-barrier liquid packaging film material.
The present invention solves the problems of the technologies described above the technical scheme of being taked: a kind of five-layer co-squeezing high-barrier liquid packaging film material, constitute by printed layers, bonding coat, high-obstruction, bonding coat and hot sealing layer successively from outside to inside, wherein, described packaging film material is at 24h, and the oxygen transit dose under the 0.1MPa is not more than 12000cm
3/ m
2, steam penetrating capacity is not more than 2g/m
2, comprise following component by weight percentage:
Printed layers low density polyethylene (LDPE) (LDPE) 18～22%
Polyethylene white master batch 8～10%,
Linear low density polyethylene (LLDPE) 12～16%
Slip agent 1～1.5%;
Bonding coat acrylonitrile-styrene-butadiene copolymer (ABS) 4～5%;
High-obstruction ethylene-vinyl alcohol copolymer (EVOH) 6～10%
Polyethylene black agglomerate 8～12%;
Bonding coat acrylonitrile-styrene-butadiene copolymer (ABS) 4～5%;
Hot sealing layer high density polyethylene (HDPE) (HDPE) 8～12%
Linear low density polyethylene (LLDPE) 10～14%
Metallocene linear low density polyethylene (mLLDPE) 6～10%
Slip agent 1～1.5%.
Concrete, the percentage composition of each ingredients constitute total amount is:
In the printed layers, the consumption of low density polyethylene (LDPE) can be 18,19,20,21 or 22%,
The consumption of polyethylene white master batch can be 8,8.5,9,9.5 or 10%,
The consumption of linear low density polyethylene can be 12,13,14,15 or 16%, and,
The consumption of slip agent can be 1,1.1,1.2,1.3 or 1.5%;
In the bonding coat, the consumption of acrylonitrile-styrene-butadiene copolymer can be 4,4.2,4.5,4.8 or 5%;
In the high-obstruction, the consumption of ethylene-vinyl alcohol copolymer can be 8,8.5,9,9.5 or 10%, and,
The consumption of polyethylene black agglomerate can be 8,9,10,11 or 12%;
In the bonding coat, the consumption of acrylonitrile-styrene-butadiene copolymer can be 4,4.2,4.5,4.8 or 5%;
In the hot sealing layer, the consumption of high density polyethylene (HDPE) can be 8,8.5,9,9.5,10,10.5,11,11.5 or 12%,
The consumption of linear low density polyethylene can be 10,10.5,11,11.5,12,12.5,13,13.5 or 14%,
The consumption of metallocene linear low density polyethylene can be 6,7,8,8.5,9,9.5 or 10%, and,
The consumption of slip agent can be 1,1.1,1.2,1.3 or 1.5%.
On the basis of such scheme, described slip agent is an amides compound, or high molecular compound.
On the basis of such scheme, the pulling strengrth of described film material is not less than 22MPa.
On the basis of such scheme, the breaking elongation of described film material is not less than 800%.
On the basis of such scheme, the dynamic friction coefficient on the inside and outside surface of described film material is not more than 0.15.
On the basis of such scheme, preparation method at above-mentioned five-layer co-squeezing high-barrier liquid packaging film material, each feed composition of printed layers, bonding coat, high-obstruction, bonding coat and hot sealing layer is carried out screw rod respectively to be extruded, in same mould place stack co-extrusion, make the packaging film material of five-layer co-squeezing.
The invention has the beneficial effects as follows:
Adopt prescription of the present invention and five-layer structure film, pulling strengrth, breaking elongation be obviously because tradition film of the same type, and heat-sealing temperature reduces about 10 ℃, and surfaces externally and internally is more smooth, and steam penetrating capacity, oxygen transit dose all are lower than existing film.
The specific embodiment
A kind of five-layer co-squeezing high-barrier liquid packaging film material, described packaging film material is made of printed layers, bonding coat, high-obstruction, bonding coat and hot sealing layer from outside to inside successively, comprises following component by weight percentage:
Embodiment 123
Printed layers low density polyethylene (LDPE) 18 20 22
(Shanghai petrochemical industry Q281)
Polyethylene white master batch 8 10 8
(the Shanghai gold lives in look mother, white food stage)
Linear low density polyethylene 16 12 12
(Saudi Arabia SABIC 218W)
Slip agent 11 1.5
(Shanghai Lay mattress FK-2)
Bonding coat acrylonitrile-styrene-butadiene copolymer 45 4.5
High-obstruction ethylene-vinyl alcohol copolymer 7 10 6
(Mitsui SP482B)
Polyethylene black agglomerate 12 10 8
(the Shanghai gold lives in look mother, black-food level)
Bonding coat acrylonitrile-styrene-butadiene copolymer 45 4.5
Hot sealing layer high density polyethylene (HDPE) 98 12
(the Shanghai gold is luxuriant and rich with fragrance, TR144)
Linear low density polyethylene 10 10 14
Metallocene linear low density polyethylene 10 86
(LG-DOW 5100G)
Slip agent 11 1.5
The performance ratio of five-layer co-squeezing high-barrier liquid packaging film material of the present invention and common liq packaging film material is more as shown in table 1.
Table 1
| Embodiment film material | The normal film material | |
| Band liquid heat-sealing temperature | ??150℃±10℃ | ??160℃±10℃ |
| Thickness deviation % | ??±6～8 | ??±8～10 |
| Embodiment film material | The normal film material | |
| Longitudinal tensile strength MPa | ??≥26 | ??16～22 |
| Longitudinal tensile strength MPa | ??≥24 | ??16～20 |
| Longitudinal fracture percentage elongation % | ??≥800 | ??400～600 |
| Cross break percentage elongation % | ??≥1000 | ??500～800 |
| Dynamic friction coefficient (inside and outside surface) | ??0.15 | ??0.25～0.35 |
| Steam penetrating capacity g/m 2，24h | ??≤1.5 | ??4～8 |
| Oxygen transit dose cm 3/m 2，24h，0.1MPa | ??≤1000 | ??1800～2500 |
| Printing quality (aberration, chromatography, printing ink) | Do not come off with batch no color differnece chromatography bias free printing ink | There is slight aberration registration deviation 0.5～1mm part printing ink slightly to come off |
| Flake, stiff piece and impurity | Do not have | 1～4/m 2 |
| Sense organ | Free from extraneous odour, no foreign odor, no foreign matter | Slight peculiar smell and foreign odor are arranged |
With the content is that plain chocolate is an example, makes Milk package bag with film material of the present invention, and it is good to have band liquid heat sealability, the pulling strengrth height, printing is good, and thickness is average, the weld strength height, the characteristics that barrier property is good, the milk normal temperature preservation shelf-life extended to 90 days from common 60 days.
Claims (7)
1. a five-layer co-squeezing high-barrier liquid packaging film material is made of printed layers, bonding coat, high-obstruction, bonding coat and hot sealing layer from outside to inside successively, it is characterized in that: described packaging film material 24h, the oxygen transit dose under the 0.1MPa is not more than 12000cm
3/ m
2, steam penetrating capacity is not more than 2g/m
2, comprise following component by weight percentage:
Printed layers low density polyethylene (LDPE) 18～22%
Polyethylene white master batch 8～10%
Linear low density polyethylene 12～16%
Slip agent 1～1.5%;
Bonding coat acrylonitrile-styrene-butadiene copolymer 4～5%;
High-obstruction ethylene-vinyl alcohol copolymer 6～10%
Polyethylene black agglomerate 8～12%;
Bonding coat acrylonitrile-styrene-butadiene copolymer 4～5%;
Hot sealing layer high density polyethylene (HDPE) 8～12%
Linear low density polyethylene 10～14%
Metallocene linear low density polyethylene 6～10%
Slip agent 1～1.5%.
2. five-layer co-squeezing high-barrier liquid packaging film material according to claim 1 is characterized in that: described slip agent is an amides compound, or high molecular compound.
3. five-layer co-squeezing high-barrier liquid packaging film material according to claim 1, it is characterized in that: the pulling strengrth of described packaging film material is not less than 22MPa.
4. five-layer co-squeezing high-barrier liquid packaging film material according to claim 1, it is characterized in that: the breaking elongation of described film material is not less than 800%.
5. five-layer co-squeezing high-barrier liquid packaging film material according to claim 1 is characterized in that: the dynamic friction coefficient on the inside and outside surface of described film material is not more than 0.15.
6. five-layer co-squeezing high-barrier liquid packaging film material according to claim 1 is characterized in that: the heat-sealing temperature of described film material is 140～160 ℃
7. at the preparation method of the described five-layer co-squeezing high-barrier liquid packaging film of one of claim 1 to 8 material, each feed composition of printed layers, bonding coat, high-obstruction, bonding coat and hot sealing layer is carried out screw rod respectively to be extruded, in same mould place stack co-extrusion, make the packaging film material of five-layer co-squeezing.
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| CN200910247702A CN101758959A (en) | 2009-12-30 | 2009-12-30 | Five-layer co-extrusion high barrier liquid packaging film and preparation method thereof |
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|---|---|---|---|
| CN200910247702A CN101758959A (en) | 2009-12-30 | 2009-12-30 | Five-layer co-extrusion high barrier liquid packaging film and preparation method thereof |
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Family
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| CN103802418A (en) * | 2014-02-14 | 2014-05-21 | 天津利成虹宇包装材料有限公司 | Co-extrusion nylon casing film colored by adhesive resin layer, as well as preparation method and application of co-extrusion nylon casing film |
| CN103862772A (en) * | 2014-03-03 | 2014-06-18 | 江南大学 | High-performance barrier environmental-friendly package material of inner bag of flexible freight bag and preparation method of package material |
| CN104476875A (en) * | 2015-01-14 | 2015-04-01 | 重庆科欣塑料有限公司 | Polyolefin thin film with drying agent function and manufacturing method of polyolefin thin film with drying agent function |
| CN104589749A (en) * | 2014-12-24 | 2015-05-06 | 广东德冠薄膜新材料股份有限公司 | High-barrier bi-directionally stretched polythene film and preparation method thereof |
| CN104816525A (en) * | 2015-04-30 | 2015-08-05 | 桐城市福润包装材料有限公司 | High-barrier plastic flexible-package composite material easy to tear |
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Application publication date: 20100630 |