CN201889933U - Multi-layer co-extruded controlled-atmosphere fresh-keeping package film - Google Patents
Multi-layer co-extruded controlled-atmosphere fresh-keeping package film Download PDFInfo
- Publication number
- CN201889933U CN201889933U CN2010205173466U CN201020517346U CN201889933U CN 201889933 U CN201889933 U CN 201889933U CN 2010205173466 U CN2010205173466 U CN 2010205173466U CN 201020517346 U CN201020517346 U CN 201020517346U CN 201889933 U CN201889933 U CN 201889933U
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- Prior art keywords
- layer
- atmosphere fresh
- sealing layer
- fresh
- keeping
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000004320 controlled atmosphere Methods 0.000 title claims abstract description 15
- 238000007639 printing Methods 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 21
- 238000012856 packing Methods 0.000 claims description 13
- 239000004743 Polypropylene Substances 0.000 claims description 5
- -1 polypropylene Polymers 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 14
- 239000001569 carbon dioxide Substances 0.000 abstract description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 7
- 239000007789 gas Substances 0.000 abstract description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 6
- 239000001301 oxygen Substances 0.000 abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 abstract description 6
- 235000001674 Agaricus brunnescens Nutrition 0.000 abstract description 5
- 230000000241 respiratory effect Effects 0.000 abstract description 4
- 239000010410 layer Substances 0.000 abstract 4
- 239000012793 heat-sealing layer Substances 0.000 abstract 2
- 239000005021 flexible packaging material Substances 0.000 abstract 1
- 238000002834 transmittance Methods 0.000 abstract 1
- 241000234427 Asparagus Species 0.000 description 20
- 235000005340 Asparagus officinalis Nutrition 0.000 description 20
- 229920001684 low density polyethylene Polymers 0.000 description 10
- 239000004702 low-density polyethylene Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 229920000092 linear low density polyethylene Polymers 0.000 description 6
- 239000004707 linear low-density polyethylene Substances 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000002255 enzymatic effect Effects 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 235000013402 health food Nutrition 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000002503 metabolic effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 239000004475 Arginine Substances 0.000 description 1
- 239000002211 L-ascorbic acid Substances 0.000 description 1
- 235000000069 L-ascorbic acid Nutrition 0.000 description 1
- 239000004472 Lysine Substances 0.000 description 1
- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 description 1
- 230000004103 aerobic respiration Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004099 anaerobic respiration Effects 0.000 description 1
- 230000001093 anti-cancer Effects 0.000 description 1
- ODKSFYDXXFIFQN-UHFFFAOYSA-N arginine Natural products OC(=O)C(N)CCCNC(N)=N ODKSFYDXXFIFQN-UHFFFAOYSA-N 0.000 description 1
- 229960005070 ascorbic acid Drugs 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000004958 brain cell Anatomy 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 210000002686 mushroom body Anatomy 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000008935 nutritious Nutrition 0.000 description 1
- 229920006280 packaging film Polymers 0.000 description 1
- 239000012785 packaging film Substances 0.000 description 1
- 235000021485 packed food Nutrition 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229940001482 sodium sulfite Drugs 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000004334 sorbic acid Substances 0.000 description 1
- 235000010199 sorbic acid Nutrition 0.000 description 1
- 229940075582 sorbic acid Drugs 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
Abstract
The utility model belongs to the technical field of flexible packaging material and particularly relates to a multi-layer co-extruded controlled-atmosphere fresh-keeping package film. The multi-layer co-extruded controlled-atmosphere fresh-keeping package film comprises a printing and external heat sealing layer (1), a medium layer (2) and an internal heat sealing layer (3) and has a long quality guarantee period. The multi-layer co-extruded controlled-atmosphere fresh-keeping package film has different transmittance for oxygen and carbon dioxide. As the respiratory activity of needle mushroom goes on, and gas inside and outside a package are permeated, the volume of oxygen in the package reaches 2-5%, and the volume of carbon dioxide in the package reaches 3-8%; under the temperature of 2 DEG C to 5 DEG C, the quality guarantee period of the needle mushroom reaches 25 days to 60 days.
Description
Technical field
The utility model belongs to the flexible packing material technical field, in particular, relates to a kind of multi-layer co-extruded controlled atmosphere fresh-keeping packing film.
Background technology
Tender and crisp, the delicious flavour of Asparagus meat, nutritious, be rich in lysine and arginine, benefit the growth of brain cell, claim to increase the intelligence mushroom again.That Asparagus also has is anticancer, reducing blood lipid, protect the liver, prevent and treat functions such as canker, is described as " super health food " on the international market again.So Asparagus is a ticbit, be again health food, but its vital movement of Asparagus results back is still being carried out, storage tolerance not, following 3 days mushroom bodies of normal temperature are promptly softening, stem base portion browning, and frowziness emits, and is putrid and deteriorated, thereby had a strong impact on the accumulating and the sale of Asparagus.
In order to prolong the shelf-life of fresh Asparagus, following treating method is arranged usually:
1. cold storage fresh-keeping method: fresh Asparagus is packed in the common PE bag, and sealing is preserved in-20 ℃ freezer then, and freshness date can reach the shelf-life about 1 year.This method only is applicable to long-distance transport and long term storage, but instant transportation and sale after being unsuitable for plucking;
2. chemical fresh-keeping method: use some chemical reagent to suppress the edible mushroom enzymatic activity, prevent from peculiar smell, delay senility and prevent to go bad.Common chemical reagent such as iron ion antistaling agent, sodium sulfite, sorbic acid, L-ascorbic acid etc.But,
Long-term edible these chemical reagent are healthy totally unfavorable to people's;
3. radiation preservation method: utilize gamma-ray irradiation can reduce the edible mushroom enzymatic activity, suppress or kill microorganisms, reach fresh-keeping purpose.But the food that this x ray irradiation x is crossed is not clear to the health influence, and a lot of countries have refused irradiated fresh-keeping foodstuff and entered the market;
4. common PE bag vacuum storage: use common PE bag to vacuumize packing, accumulating and sale in 2～5 ℃ cold storage environment then.This method can extend to the shelf-life of fresh Asparagus 5～7 days.But at present domestic consumer environment, it is very short that the shelf-life still shows;
5. inflation air conditioned storage: use the PE bag, charge into a certain amount of controlled atmosphere gas in the time of the packing Asparagus in bag, gas is mixed according to a certain percentage by nitrogen, carbon dioxide etc., and is stored refrigerated then.This method can better extend the shelf life, but the controlled atmosphere gas that needs special gas flush packaging equipment and correct proportions to mix, and cost is higher.
The utility model content
The utility model has overcome shortcoming of the prior art, and a kind of multi-layer co-extruded controlled atmosphere fresh-keeping packing film that is used to pack Asparagus is provided, and this packaging film can extend to the shelf-life of fresh Asparagus 25～60 days, and its low cost of manufacture, easy to use, the product transparency is good, and outward appearance is beautiful.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
A kind of multi-layer co-extruded controlled atmosphere fresh-keeping packing film comprises printing and outer hot sealing layer (1), intermediate layer (2) and interior hot sealing layer (3).
Further, the thickness proportion of described printing and outer hot sealing layer (1), intermediate layer (2), interior hot sealing layer (3) is: 0.5～1.5: 3～5: 0.5～1.5.
Further, described printing and outer hot sealing layer (1) are 1～2: 1～2 the low density polyethylene (LDPE) and the mixture of LLDPE for part by weight.
Further, described intermediate layer (2) are polypropylene.
Further, hot sealing layer (3) is 1～2: 1～2 the low density polyethylene (LDPE) and the mixture of LLDPE for part by weight in described.
Further, the gross thickness of described printing and outer hot sealing layer (1), intermediate layer (2) and interior hot sealing layer (3) is 20～60 microns
Compared with prior art, the beneficial effects of the utility model are:
1, long shelf-life.The utility model is different to the transmitance of oxygen and carbon dioxide, carry out and pack the infiltration of inside and outside gas along with the respiratory activity of Asparagus, oxygen volume ratio content in the final packaging reaches 2～5%, carbon dioxide volume ratio content reaches 3～8%, accumulating and sale in 2～5 ℃ environment, the shelf-life of Asparagus can reach 25～60 days.
2, packaged food is safer.The utility model is used to pack Asparagus, does not add chemical reagent, does not carry out x ray irradiation x, and food is safer.
3, easy to use.Using method is identical with the common PE bag, need not special fill gas regulating the qi flowing in the channels body;
4, the transparency is good.The utility model is a transparent multilaminar co-extrusion film, and the transparency is good, can be good at observing inner Asparagus quality.
5, appearance looks elegant.The utility model can carry out the fineness printing, and outward appearance is beautiful.
6, cost is low.The utility model is a PP TYPE, can obtain 25～60 days shelf-life, and integrated cost is low.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is a cross-section structure of the present utility model.
The specific embodiment
As shown in Figure 1, multi-layer co-extruded controlled atmosphere fresh-keeping packing film described in the utility model, comprise printing and outer hot sealing layer 1, intermediate layer 2 and interior hot sealing layer 3, totally 3 layers, the gross thickness of three-layer co-extruded film is 30 microns, and the layer thickness ratio is: printing and outer hot sealing layer 1: intermediate layer 2: interior hot sealing layer 3=0.5: 3: 0.5.
Printing and outer hot sealing layer 1 are made up of LDPE (low density polyethylene (LDPE)) and LLDPE (LLDPE), and its part by weight is 1: 2, and the outer surface of this layer is through sided corona treatment, and surface tension reaches more than the 38dyn/cm; Intermediate layer 2 is made up of PP (polypropylene); Interior hot sealing layer 3 is made up of LDPE (low density polyethylene (LDPE)) and LLDPE (LLDPE), and its part by weight is 1: 2.Pack the fresh Asparagus of 200g with this film, accumulating and sale in 2～5 ℃ environment, its shelf-life can reach 30～40 days.
When gross thickness is designed to 50 microns, pack the fresh Asparagus of 500g with the utility model, accumulating and sale in 2～5 ℃ environment, its shelf-life can reach 35～45 days.
The utility model is that the physiological activity characteristics according to fresh Asparagus design.After the fresh Asparagus results, still keep absorbing the metabolic respiratory activity that oxygen is discharged carbon dioxide, along with the carrying out of respiratory activity, Asparagus is rotten gradually.If the content of oxygen reduces and the content rising of carbon dioxide in the packing, can make it keep faint aerobic respiration and do not produce anaerobic respiration, its aging course is delayed, and has reduced metabolic speed, thereby has prolonged the shelf-life.
The utility model is not limited to above-mentioned embodiment, if various changes of the present utility model or distortion are not broken away from spirit and scope of the present utility model, if these changes and distortion belong within claim of the present utility model and the equivalent technologies scope, then the utility model also is intended to comprise these changes and distortion.
Claims (4)
1. a multi-layer co-extruded controlled atmosphere fresh-keeping packing film is characterized in that: comprise printing and outer hot sealing layer (1), intermediate layer (2) and interior hot sealing layer (3).
2. multi-layer co-extruded controlled atmosphere fresh-keeping packing film according to claim 1 is characterized in that: the thickness proportion of described printing and outer hot sealing layer (1), intermediate layer (2), interior hot sealing layer (3) is: 0.5～1.5: 3～5: 0.5～1.5.
3. multi-layer co-extruded controlled atmosphere fresh-keeping packing film according to claim 1 and 2 is characterized in that: described intermediate layer (2) are polypropylene.
4. multi-layer co-extruded controlled atmosphere fresh-keeping packing film according to claim 1 and 2 is characterized in that: the gross thickness of described printing and outer hot sealing layer (1), intermediate layer (2) and interior hot sealing layer (3) is 20～60 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205173466U CN201889933U (en) | 2010-09-02 | 2010-09-02 | Multi-layer co-extruded controlled-atmosphere fresh-keeping package film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205173466U CN201889933U (en) | 2010-09-02 | 2010-09-02 | Multi-layer co-extruded controlled-atmosphere fresh-keeping package film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201889933U true CN201889933U (en) | 2011-07-06 |
Family
ID=44219410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205173466U Expired - Lifetime CN201889933U (en) | 2010-09-02 | 2010-09-02 | Multi-layer co-extruded controlled-atmosphere fresh-keeping package film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201889933U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102502110A (en) * | 2011-10-14 | 2012-06-20 | 江阴升辉包装材料有限公司 | Vegetable and fruit plastic packaging box |
| CN108128008A (en) * | 2017-12-29 | 2018-06-08 | 常德金德新材料科技股份有限公司 | A kind of anti-mildew fresh-keeping film and preparation method thereof |
| CN108283260A (en) * | 2017-12-29 | 2018-07-17 | 常德金德新材料科技股份有限公司 | A kind of preparation method of anti-mildew fresh-keeping film |
| CN112218803A (en) * | 2018-06-12 | 2021-01-12 | 东洋纺株式会社 | Polyester film for preserving freshness and package |
-
2010
- 2010-09-02 CN CN2010205173466U patent/CN201889933U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102502110A (en) * | 2011-10-14 | 2012-06-20 | 江阴升辉包装材料有限公司 | Vegetable and fruit plastic packaging box |
| CN108128008A (en) * | 2017-12-29 | 2018-06-08 | 常德金德新材料科技股份有限公司 | A kind of anti-mildew fresh-keeping film and preparation method thereof |
| CN108283260A (en) * | 2017-12-29 | 2018-07-17 | 常德金德新材料科技股份有限公司 | A kind of preparation method of anti-mildew fresh-keeping film |
| CN112218803A (en) * | 2018-06-12 | 2021-01-12 | 东洋纺株式会社 | Polyester film for preserving freshness and package |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110706 |
|
| CX01 | Expiry of patent term |