CN102729563B - Easily degradable paper-like novel high-barrier packaging film for UHT liquid milk - Google Patents
Easily degradable paper-like novel high-barrier packaging film for UHT liquid milk Download PDFInfo
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- CN102729563B CN102729563B CN201210177367.1A CN201210177367A CN102729563B CN 102729563 B CN102729563 B CN 102729563B CN 201210177367 A CN201210177367 A CN 201210177367A CN 102729563 B CN102729563 B CN 102729563B
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- 239000007788 liquid Substances 0.000 title claims abstract description 14
- 239000008267 milk Substances 0.000 title claims abstract description 14
- 235000013336 milk Nutrition 0.000 title claims abstract description 14
- 210000004080 milk Anatomy 0.000 title claims abstract description 14
- 239000012785 packaging film Substances 0.000 title claims abstract description 9
- 229920006280 packaging film Polymers 0.000 title claims abstract description 9
- 229920001684 low density polyethylene Polymers 0.000 claims description 14
- 239000004702 low-density polyethylene Substances 0.000 claims description 14
- 238000004806 packaging method and process Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 229920001903 high density polyethylene Polymers 0.000 claims description 8
- 239000004700 high-density polyethylene Substances 0.000 claims description 8
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 8
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- 239000012528 membrane Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 2
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 claims description 2
- 239000004715 ethylene vinyl alcohol Substances 0.000 claims description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical group C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 6
- 238000001125 extrusion Methods 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000012856 packing Methods 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000011888 foil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 241001435619 Lile Species 0.000 description 1
- 241000656145 Thyrsites atun Species 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Wrappers (AREA)
Abstract
The invention discloses an easily degradable paper-like novel high-barrier packaging film for UHT liquid milk. The packaging film is a nine-layer composite structure processed by a nine-layer co-extrusion apparatus in one shot. The packaging film has paper-like appearance and can be written like book paper; meanwhile, the film has high-barrier performance and enables a shelf life to be prolonged to 3 months, and the greatest advantage of the film is that the film is degradable.
Description
Technical field
The present invention relates to a kind of UHT high-barrier packaging membrane for liquid milk that there is paper sense outward appearance and easily degrade.
Background technology
At present, the manner of packing of UHT liquid milk mainly contains two types: one is aseptic bag, the Lilezhen of Lile packaging Co., Ltd of Sweden; Two is coextrusion three layers or five layers of black and white plastic foil.The former barrier is high, and shelf display is effective, and shelf life can reach more than 6 months, good moldability, almost monopolized the high-end market of liquid milk-packing, but packing cost is higher, and needs to use on the special purpose packaging machine of Tetrapack company, and exclusiveness is strong.The packing cost of the latter is cheap, but toughness of material is bad, walks broken bag rate in machine process high, and especially obvious under low-temperature condition, shelf life is generally 60 days.If under the environment of summer high-temperature high humidity, shelf life is only 30 days.
Although above bi-material structure occupies the market of China at present, no matter aseptic bag or black and white milk film, be all nondegradable material, environment is had a great impact.
How making packaging material minimizing, meet the requirement of the environmental protection that country proposes, energy-conservation, low emission, is the bounden social responsibility of packaging material research and development, producers.
Summary of the invention
The technical issues that need to address of the present invention are just the defect overcoming prior art, a kind of UHT high-barrier packaging membrane for liquid milk having paper sense outward appearance and easily degrade is provided, it has papery outward appearance, can write as book paper, simultaneously, this film has higher barrier, shelf life can be brought up to 3 months, and to possess maximum advantage be exactly degradable.
For solving the problem, the present invention adopts following technical scheme:
The invention provides a kind of UHT high-barrier packaging membrane for liquid milk having paper sense outward appearance and easily degrade, described packaging film is 9 Rotating fields, and certainly outside to inside, the weight of every layer material is:
The mixing ratio of the 1st layer is LDPE: modified Nano level polyethylene: imitative paper particle=15:10:75; Thickness is 10 microns; Account for 8.7% of overall package film thickness;
The mixing ratio of the 2nd layer is LDPE: modified Nano level polyethylene: imitative paper particle=15:10:75; Thickness is 20 microns; Account for 17.4% of overall package film thickness;
The mixing ratio of the 3rd layer is HDPE:LDPE=50:50; Thickness is 20 microns; Account for 17.4% of overall package film thickness;
The mixing ratio of the 4th layer is LLDPE: binder resin=50:50; Thickness is 5 microns; Account for 4.3% of overall package film thickness;
The mixing ratio of the 5th layer is ethylene-vinyl alcohol copolymer=100%; Thickness is 5 microns; Account for 4.3% of overall package film thickness;
The mixing ratio of the 6th layer is LLDPE: binder resin=50:50; Thickness is 5 microns; Account for 4.3% of overall package film thickness;
The mixing ratio of the 7th layer is HDPE:LDPE=50:50; Thickness is 20 microns; Account for 17.4% of overall package film thickness;
The mixing ratio of the 8th layer is LDPE:LLDPE:MPE=20:40:40; Thickness is 20 microns; Account for 17.4% of overall package film thickness;
The mixing ratio of the 9th layer is LDPE:MPE=20:80; Thickness is 10 microns; Account for 8.7% of overall package film thickness;
Layers 1 and 2 every layer is mixed with the imitative paper particle of 75% respectively, guarantees the object reaching degraded, achieves the effect of papery simultaneously; 3rd layer and the 7th layer is undertaking layer, and the 4th layer and the 6th layer is tack coat, and the 5th layer of object adopting EVOH to reach high-barrier, the 8th layer and the 9th layer is hot sealing layer, guarantees that material has very high heat seal strength and Hot Tack strength.Layers 1 and 2 every layer is mixed with the imitative paper particle of 75% respectively, and this particle is carrier with LLDPE, guarantees the object reaching degraded, achieves the effect of papery simultaneously.
7th layer is added with the black masterbatch accounting for the 7th layer of gross weight 10%.
Described packaging film is formed by nine layers of coextrusion time processing.
Advantage of the present invention is:
1, the present invention proposes and be a kind ofly different from liquid milk-packing structure common in the market, have papery outward appearance, packaging class is high, can write arbitrarily with oil pike above.
2, UHT liquid milk-packing film of the present invention, easily degrades, easily processes, little on the impact of environment.
3, nine layers of described co-extrusion intercept rete by low density polyethylene (LDPE), high density polyethylene (HDPE), LLDPE, special imitative paper resin, tie resin, and ethylene-vinyl alcohol copolymer and female nine layer films of black and white are co-extruded; This layer of material all has higher barrier to gas, moisture and ultraviolet, the shelf life of dairy produce can be brought up to 90 days;
4, accept in described nine layers in layer containing a kind of special imitative paper resin, the coarse surface of plastic foil and graceful visual experience is given by co-extrusion processing, wherein, high density polyethylene (HDPE) ensure that film has good deflection, makes film quality sense of the present invention comfortable, high-grade.
5, material solvent residual quantity is low, and printed layers is outside barrier layer, avoids ink penetration in content, has good fragrance protectiveness, maintains the original local flavor of content.
6, film of the present invention has excellent flexibility (adaptability) of operation, and wherein nine layers of co-extrusion intercept retes is hot sealing layers and directly contact with liquid milk, and the product employing film of this film is rolled up and supplied, can on existing plastics milk film sterile packaging machine filling bag.
Identical with current bag mode by packaging film bag mode of the present invention, heat-sealable way can be fusing sealing, also can be first seal the mode cut off again.
Detailed description of the invention
Nine layers of coextrusion paper-like UHT high-barrier milk film product inspection report of easily degrading is as follows:
Last it is noted that obviously, above-described embodiment is only for example of the present invention is clearly described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of amplifying out or variation be still among protection scope of the present invention.
Claims (3)
1. have the UHT high-barrier packaging membrane for liquid milk that paper sense outward appearance is easily degraded, it is characterized in that: described packaging film is 9 Rotating fields, certainly outside to inside, the weight of every layer material is:
The mixing ratio of the 1st layer is LDPE: modified Nano level polyethylene: imitative paper particle=15:10:75; Thickness is 10 microns; Account for 8.7% of overall package film thickness;
The mixing ratio of the 2nd layer is LDPE: modified Nano level polyethylene: imitative paper particle=15:10:75; Thickness is 20 microns; Account for 17.4% of overall package film thickness;
The mixing ratio of the 3rd layer is HDPE:LDPE=50:50; Thickness is 20 microns; Account for 17.4% of overall package film thickness;
The mixing ratio of the 4th layer is LLDPE: binder resin=50:50; Thickness is 5 microns; Account for 4.3% of overall package film thickness;
The mixing ratio of the 5th layer is ethylene-vinyl alcohol copolymer=100%; Thickness is 5 microns; Account for 4.3% of overall package film thickness;
The mixing ratio of the 6th layer is LLDPE: binder resin=50:50; Thickness is 5 microns; Account for 4.3% of overall package film thickness;
The mixing ratio of the 7th layer is HDPE:LDPE=50:50; Thickness is 20 microns; Account for 17.4% of overall package film thickness;
The mixing ratio of the 8th layer is LDPE:LLDPE:MPE=20:40:40; Thickness is 20 microns; Account for 17.4% of overall package film thickness;
The mixing ratio of the 9th layer is LDPE:MPE=20:80; Thickness is 10 microns; Account for 8.7% of overall package film thickness;
Layers 1 and 2 every layer is mixed with the imitative paper particle of 75% respectively, guarantees the object reaching degraded, achieves the effect of papery simultaneously; 3rd layer and the 7th layer is undertaking layer, and the 4th layer and the 6th layer is tack coat, and the 5th layer of object adopting EVOH to reach high-barrier, the 8th layer and the 9th layer is hot sealing layer, guarantees that material has very high heat seal strength and Hot Tack strength.
2. there is UHT high-barrier packaging membrane for liquid milk that paper sense outward appearance is easily degraded as claimed in claim 1, it is characterized in that: the 7th layer is added with the black masterbatch accounting for the 7th layer of gross weight 10%.
3. there is UHT high-barrier packaging membrane for liquid milk that paper sense outward appearance is easily degraded as claimed in claim 1 or 2, it is characterized in that: described packaging film is formed by nine layers of coextrusion time processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210177367.1A CN102729563B (en) | 2012-06-01 | 2012-06-01 | Easily degradable paper-like novel high-barrier packaging film for UHT liquid milk |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210177367.1A CN102729563B (en) | 2012-06-01 | 2012-06-01 | Easily degradable paper-like novel high-barrier packaging film for UHT liquid milk |
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| Publication Number | Publication Date |
|---|---|
| CN102729563A CN102729563A (en) | 2012-10-17 |
| CN102729563B true CN102729563B (en) | 2015-01-07 |
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| CN201210177367.1A Active CN102729563B (en) | 2012-06-01 | 2012-06-01 | Easily degradable paper-like novel high-barrier packaging film for UHT liquid milk |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109263161A (en) * | 2018-08-13 | 2019-01-25 | 泗水县宏大伟业印务有限公司 | A kind of high-barrier imitates paper liquid packaging film and preparation method thereof |
| CN109435400A (en) * | 2018-11-26 | 2019-03-08 | 付进 | A kind of multi-layer co-extrusion packaging film and preparation method thereof with papery feel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1736812A (en) * | 2004-01-09 | 2006-02-22 | 山东滨州格瑞新型材料有限公司 | Nanometer degradable insulation package membrane and its production method |
| CN101100123A (en) * | 2006-07-06 | 2008-01-09 | 郭瑞林 | Seven-layer co-extrusion high-isolating packaging film |
| CN101525071A (en) * | 2009-04-23 | 2009-09-09 | 高永明 | Seven-layer coextrusion composite high-separation packaging film |
| CN202062766U (en) * | 2011-05-24 | 2011-12-07 | 朝阳佛瑞达科技有限公司 | Novel paper-plastic high-barrier packaging membrane for liquid milk |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0998388B9 (en) * | 1997-02-11 | 2007-10-03 | Dow Global Technologies Inc. | Pouches for packaging flowable materials |
| JP2003104432A (en) * | 2001-09-27 | 2003-04-09 | Nihon Tetra Pak Kk | Paper wrapping-material for liquid food |
| AU2003252855B2 (en) * | 2002-10-22 | 2008-09-18 | Mitsubishi Gas Chemical Company, Inc. | Gas-barrier multi-layer structure |
-
2012
- 2012-06-01 CN CN201210177367.1A patent/CN102729563B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1736812A (en) * | 2004-01-09 | 2006-02-22 | 山东滨州格瑞新型材料有限公司 | Nanometer degradable insulation package membrane and its production method |
| CN101100123A (en) * | 2006-07-06 | 2008-01-09 | 郭瑞林 | Seven-layer co-extrusion high-isolating packaging film |
| CN101525071A (en) * | 2009-04-23 | 2009-09-09 | 高永明 | Seven-layer coextrusion composite high-separation packaging film |
| CN202062766U (en) * | 2011-05-24 | 2011-12-07 | 朝阳佛瑞达科技有限公司 | Novel paper-plastic high-barrier packaging membrane for liquid milk |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2003-104432A 2003.04.09 * |
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Inventor after: Guo Ruilin Inventor before: Huang Guanjun |
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Denomination of invention: Easily degradable paper-like novel high-barrier packaging film for UHT liquid milk Effective date of registration: 20181018 Granted publication date: 20150107 Pledgee: Chaoyang bank Limited by Share Ltd. Lingbin sub branch Pledgor: CHAOYANG FREEDOM SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: 2018210000029 |
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Date of cancellation: 20200429 Granted publication date: 20150107 Pledgee: Chaoyang bank Limited by Share Ltd. Lingbin sub branch Pledgor: CHAOYANG FREEDOM SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: 2018210000029 |
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Denomination of invention: Easily degradable paper-like novel high-barrier packaging film for UHT liquid milk Effective date of registration: 20200430 Granted publication date: 20150107 Pledgee: Chaoyang bank Limited by Share Ltd. Lingbin sub branch Pledgor: CHAOYANG FREEDOM SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2020210000016 |
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Date of cancellation: 20220928 Granted publication date: 20150107 Pledgee: Chaoyang bank Limited by Share Ltd. Lingbin sub branch Pledgor: CHAOYANG FREEDOM SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2020210000016 |
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Denomination of invention: UHT liquid milk high barrier packaging film with paper sense appearance and easy degradation Effective date of registration: 20220929 Granted publication date: 20150107 Pledgee: Chaoyang bank Limited by Share Ltd. Lingbin sub branch Pledgor: CHAOYANG FREEDOM SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2022210000154 |