CN103144845B - The special paper-plastic composite film of fruit and vegetable normal-temperature fresh-keeping - Google Patents
The special paper-plastic composite film of fruit and vegetable normal-temperature fresh-keeping Download PDFInfo
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- CN103144845B CN103144845B CN201310063998.5A CN201310063998A CN103144845B CN 103144845 B CN103144845 B CN 103144845B CN 201310063998 A CN201310063998 A CN 201310063998A CN 103144845 B CN103144845 B CN 103144845B
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- 235000012055 fruits and vegetables Nutrition 0.000 title claims abstract description 47
- 229920003023 plastic Polymers 0.000 title claims abstract description 29
- 239000004033 plastic Substances 0.000 title claims abstract description 29
- 239000002131 composite material Substances 0.000 title claims description 10
- 239000000758 substrate Substances 0.000 claims abstract description 31
- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 24
- 239000003899 bactericide agent Substances 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000004888 barrier function Effects 0.000 claims abstract description 9
- 230000035699 permeability Effects 0.000 claims abstract description 8
- 230000001105 regulatory effect Effects 0.000 claims abstract description 8
- 230000008859 change Effects 0.000 claims abstract description 7
- 230000001954 sterilising effect Effects 0.000 claims abstract description 7
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 5
- 235000013399 edible fruits Nutrition 0.000 claims description 17
- 229920005989 resin Polymers 0.000 claims description 16
- 239000011347 resin Substances 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 13
- 229910052760 oxygen Inorganic materials 0.000 claims description 13
- 239000001301 oxygen Substances 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 11
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 10
- 229920000058 polyacrylate Polymers 0.000 claims description 10
- 239000004698 Polyethylene Substances 0.000 claims description 8
- 239000011230 binding agent Substances 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 7
- 239000004814 polyurethane Substances 0.000 claims description 6
- 235000014655 lactic acid Nutrition 0.000 claims description 5
- 239000004310 lactic acid Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 229920002635 polyurethane Polymers 0.000 claims description 5
- 239000002243 precursor Substances 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 claims description 4
- 235000010261 calcium sulphite Nutrition 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 4
- 229920001490 poly(butyl methacrylate) polymer Polymers 0.000 claims description 3
- -1 regulating course Substances 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 claims 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims 2
- 150000001336 alkenes Chemical class 0.000 claims 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- 230000000574 ganglionic effect Effects 0.000 claims 1
- 239000002068 microbial inoculum Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims 1
- 229920001483 poly(ethyl methacrylate) polymer Polymers 0.000 claims 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims 1
- 239000004926 polymethyl methacrylate Substances 0.000 claims 1
- 230000015556 catabolic process Effects 0.000 abstract description 3
- 238000006731 degradation reaction Methods 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 238000009459 flexible packaging Methods 0.000 abstract 1
- 231100000252 nontoxic Toxicity 0.000 abstract 1
- 230000003000 nontoxic effect Effects 0.000 abstract 1
- 239000012785 packaging film Substances 0.000 abstract 1
- 229920006280 packaging film Polymers 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 23
- 239000005022 packaging material Substances 0.000 description 19
- 239000000463 material Substances 0.000 description 16
- 238000005266 casting Methods 0.000 description 9
- 239000002994 raw material Substances 0.000 description 7
- 230000000241 respiratory effect Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 235000013311 vegetables Nutrition 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000004806 packaging method and process Methods 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 238000007766 curtain coating Methods 0.000 description 3
- 235000021393 food security Nutrition 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 210000002469 basement membrane Anatomy 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 210000004379 membrane Anatomy 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000004060 metabolic process Effects 0.000 description 2
- 244000052769 pathogen Species 0.000 description 2
- 230000001717 pathogenic effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000013268 sustained release Methods 0.000 description 2
- 239000012730 sustained-release form Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004099 anaerobic respiration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- BFMKFCLXZSUVPI-UHFFFAOYSA-N ethyl but-3-enoate Chemical compound CCOC(=O)CC=C BFMKFCLXZSUVPI-UHFFFAOYSA-N 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 230000036387 respiratory rate Effects 0.000 description 1
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 description 1
- 230000003019 stabilising effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Storage Of Fruits Or Vegetables (AREA)
- Packages (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention relates to a kind of fresh-keeping special-purpose non-toxic environment protection paper-plastic compound flexible packaging film of fruit and vegetable, the wrapping film is that barrier layer, bactericide releasing layer and regulating course are added between two layers of paper substrate, by the polarity and gas permeability that change barrier layer, regulating course, reach the purpose of control release bactericide, 5 20ppm gas phase bactericide can be discharged 30 90 days, with water conservation, sterilization, ventilative function.Main function is keeping fresh at normal temperature fruits and vegetables, extends the shelf life of fruit and vegetable.The freshness protection package be dropped after can with natural degradation, there is no any pollution to environment.
Description
Technical field
The present invention relates to a kind of water fruits and vegetables normal-temperature fresh-keeping paper-plastic composite film and preparation method thereof.The paper-plastic stick
Film sets regulating course, bactericide releasing layer (adhesive layer), barrier layer using paper substrate as basement membrane between two layers of paper substrate, uses
Prepared by solvent-free complex method, with sustained release sterilization, water conservation, ventilative function, for the fresh-keeping of water at normal temperature fruit vegetable.
Background technology
With the development and the improvement of people's living standards of Urbanization in China, metropolitan vegetables and fruit are increasingly
Rely on other places supply, from the place of production into common people's hand, it is necessary to pluck, assemble by the place of production, transporting for long-distance, it is wholesale, several to supermarket
Link, generally requires time of 2-4 days.Residence time of the fruits and vegetables in wholesale market and the shelf life in supermarket are general all longer,
Due to lacking appropriate preservation technology, the loss late of China fruit and vegetable is 20% or so, and the loss late of developed country closely has
2.5%, the backwardness of this explanation China preservation technology.
Fruit dredges fresh-keeping key and is to prevent water loss, is wilted if fruit and vegetable fluid loss is more than more than 5%, loses
Go commercial value；Plastic sheeting has relatively low moisture-vapor transmission, with preferable water retention property, therefore domestic and international fruit at present
Thin fresh-keeping packaging material mainly uses plastic basis material, in order to increase the oxygen permeability of plastic basis material, is developed numerous
Modified film technique, including various kinds of resin blending, the pore-creating of addition inorganic particulate, laser boring etc., but the fresh-keeping packaging material prepared
Material typically is also limited to use under low temperature, and normal-temperature fresh-keeping effect is still undesirable, and reason is that the OTR oxygen transmission rate of plastics can not expire
The requirement of high respiratory rate under sufficient fruits and vegetables normal temperature.Although the report of domestic many fruit and vegetable fresh-keeping packagings existing at present, this
A little existing Fresh-Keeping Packaging Materials have following point：
Being limited to plastic basis material 1 existing Perserving materials, due to OTR oxygen transmission rate (0TR) highest of general plastic basis material more
It is only capable of reaching 104ml/m2.day.atm, it is impossible to meet the requirement of fruit and vegetable metabolism at normal temperatures, be typically only capable of as fruit
Perserving materials under vegetable low temperature, and it is poor to the fresh-keeping effect of fruits and vegetables under normal temperature, or even fruits and vegetables can be made to occur anaerobic respiration under normal temperature；
The moisture-vapor transmission (WVTR) of 2 existing plastics base Perserving materials is small, the water that fruits and vegetables metabolism is produced in freshness protection package
Partial volume easily forms the internal environment of high humidity, causes bacteria breed, accelerates fruits and vegetables to rot；
If the gas permeability of 3 increase plastics fresh-keeping packagings is, it is necessary to which film thickness is reduced, this brings Packaging mechanics performance again
Difficulty occurs for not enough the problem of so that processing film is molded, the preparation of freshness protection package.
In a word, the respiratory intensity of fruits and vegetables is big under fruits and vegetables normal temperature, and the requirement to fresh-keeping packaging material is high, and existing plastic basis material is protected
Green wood material is typically suitable only for low temperature and used, or is suitable only for the low fruit and vegetable of respiratory intensity, for the high fruit of respiratory intensity
Not but not preservation is played at normal temperatures with vegetables, accelerate fruits and vegetables to rot on the contrary.
The content of the invention
It is an object of the invention to provide a kind of fruits and vegetables normal temperature fresh-keeping packaging material, it is a kind of paper-plastic composite film, with paper
Base is basement membrane, regulating course, bactericide releasing layer (adhesive layer), barrier layer is set between two layers of paper substrate, using solvent-free multiple
Prepared by conjunction method, with sustained release sterilization, water conservation, ventilative function, can discharge 5-20ppm gas phase bactericide 30-90 days.
Difference of the invention with existing invention is：
Using plastic basis material 1 existing fruit fresh-keeping packaging material more, and the present invention uses plastic-paper composite base material, shared by paper substrate
Ratio reduces the thickness of plastic basis material as far as possible more than 60% (W%)；The reduction of plastic basis material thickness is beneficial to improve packaging material
Oxygen permeability, to meet demand of the metabolic activity to oxygen under fruit normal temperature；And the decline of plastic basis material thickness causes mechanical property
The not enough of energy makes up by paper substrate；
2 paper substrates have the effect of regulation package interior space humidity.Paper substrate be highly polar material, paper substrate short texture, because
This OTR oxygen transmission rate is very big, even if really being dredged under normal temperature, respiratory intensity is high, and paper substrate can also meet high OTR oxygen transmission rate and (be more than
105ml/m2.day.atm).The thin paper-plastic composite film internal layer of contact fruit is paper substrate, and moisture will not condense into water droplet on paper substrate
(condensation), paper substrate also has the effect of humidity in stabilising packaging：Paper substrate is similar to steam polarity, there is certain adsorptivity to moisture
Can, paper substrate absorbs moisture when package interior moisture is high, and paper discharges moisture when humidity is low, and unnecessary moisture can
Permeation composite membrane spills into the external world, and (moisture-vapor transmission of the composite membrane is in 1-10g/m2.day.atm between), package interior is not
The problem of condensation or humidity are too high occurs；
3 existing packaging materials do not possess sterilizing function typically, and fruits and vegetables normal temperature fresh-keeping packaging material of the present invention, which is removed, to be had
Outside high oxygen flow, permeation rate, also with sterilizing function, and the precursor substance for producing bactericide is using lactic acid and calcium sulfite
Food grade accessory ingredients, after the moisture of fruits and vegetables respiration generation is touched, can discharge sulfur dioxide gas, the gas is fruits and vegetables
Bactericide, allows to use in the world, meets the requirement of food security；
The 4 fruits and vegetables normal temperature fresh-keeping packaging materials are a kind of paper-plastic composite films, and its regulating course selects EVA (ethyl vinyl acetate second
Enoate copolymer)-polyacrylate blending resin, be cast and form on paper substrate, by adjust the addition of polyacrylate come
The polarity of layer is controlled to adjust, permeability of this layer to vapor and bactericide is adjusted by the change of polarity and thickness；In the layer
The suitable blending ratio of middle polyacrylate is 5-50% (W%), and the thickness of this layer is 5-15 microns.
The barrier layer of the 5 fruits and vegetables normal temperature fresh-keeping packaging materials is from polyacrylates-polyethylene blending resin in outer layer paper
Curtain coating is formed on base, and this layer is adjusted to vapor and oxygen by adjusting the change of addition and thickness of polyacrylate
Transmitance, suppresses the transmission of bactericide；The suitable blending ratio of acrylate is 5-20% (W%), the thickness of this layer in this layer
Spend for 5-15 microns.
The 6 fruits and vegetables normal temperature fresh-keeping packaging materials are prepared using solvent-free complex method, and production process is pollution-free.
The 7 fruits and vegetables normal temperature fresh-keeping packaging materials can discharge 5-20ppm gas phase bactericide 30-90 days, can repeat to make
With 30-90 days.
Paper substrate, EVA resin, polyacrylate resin used in the 8 compound film preparations can be with natural degradations, polyethylene tree
Fat also uses degradable, therefore the fruits and vegetables normal temperature fresh-keeping packaging material can be with natural degradation.
All raw materials selected by the present invention meet regulation of the country about packaging material for food, and the bactericide of release
Concentration is low, does not have any Fungicide residue on packaged fruit, meets the requirement of food security.
In a word, the fruits and vegetables normal temperature fresh-keeping packaging material that prepared by the present invention can prevent fruits and vegetables water loss, kill on fruit
Pathogen, disclosure satisfy that oxygen percent of pass under normal temperature needed for fruits and vegetables respiration, humidity suitable in control freshness protection package, can
To significantly improve fruit and vegetable storage period at normal temperatures and shelf life；The concentration of sterilant of preservative film release and cycle are controllable,
Bactericide noresidue on fruit, meets the requirement of food security；And fruits and vegetables normal temperature fresh-keeping packaging material production process is to environment
Pollution-free, simple production process, production cost are low；Fruits and vegetables normal temperature fresh-keeping packaging material is reusable, can be dropped naturally after discarding
Solution, it is environmentally safe.
Embodiment
By embodiment in detail below and application example, the invention will be further described.Following specific descriptions be for
The present invention is readily appreciated, protection scope of the present invention is not intended to limit.
Comparative example 1
After the polybutyl methacrylate resin of 50 mass parts and 50 mass parts EVA resin melt blendings, in casting machine
Upper casting film-forming, the thickness for controlling casting films is 35 microns, prepares inner side raw material film；By the polymethyl of 20 mass parts
After acid butyl ester and the PE of 80 mass parts (low density polyethylene (LDPE)) melt blending, casting thickness is 35 microns of outside on casting machine
Raw material film；After the lactic acid of 6 mass parts is mixed with the calcium sulfite of 4 mass parts, the polyurethane (PU) for being added to 90 mass parts is accounted for
Tie in agent, prepare bactericide-polyurethane adhesive, bonded two raw material films with the binding agent, cut bag, obtain fruit
Vegetable fresh-retaining bag.
Embodiment 1
After the butyl methacrylate resins of 50 mass parts and 50 mass parts EVA resin melt blendings, film is used as
Resin raw material, on casting machine by blending resin curtain coating on 16.5 grammes per square metre paper, it is 5-7 microns to control casting thickness, is prepared
EVA- acrylate films are coated into internal layer paper substrate；The polybutyl methacrylate of 20 mass parts and the PE of 80 mass parts is (low close
Spend polyethylene) after melt blending, as the resin raw material of film, by resin curtain coating in 16.5 grammes per square metre paper on casting machine
On, it is 5-7 microns to control casting thickness, is prepared into the outer coating of paper substrate layer by layer acrylate-PE films；By the lactic acid of 6 mass parts and 4
After the calcium sulfite mixing of mass parts, it is added in the polyurethane of 90 mass parts (PU) binding agent, prepares bactericide-polyurethane
Binding agent, with the binding agent by two raw material films (paper substrate coats EVA- acrylate films and outer paper substrate layer by layer coat acrylate-
PE films) coat side bond, the resin added of binding agent is 5-8g/m2, bag is then cut, fruit and vegetable is obtained normal
Warm freshness protection package.
Embodiment 2-6
Preparation method is similar to Example 1, simply the thickness of the trade mark of feed change, proportion of composing and coated film,
Specific data are shown in Table 1.
The OTR oxygen transmission rate of the plastics base freshness protection package prepared from comparative example 1 is less than 104ml/m2.day.atm, if this
Fresh-keeping packed 1 kilogram of (300 × 400mm of appearance and size) fruits and vegetables, then be only capable of meeting less than 10ml/hr.kg respiratory intensities, general
Preservation by low temperature fruits and vegetables can be used for, the respiratory intensity of general fruit to be in 20-50ml/hr.kg at normal temperatures, and the respiratory intensity of vegetables is more
Greatly, therefore plastics base freshness protection package can cause anoxic in fruits and vegetables storage condition at room temperature, it is easier to which aging is rotted；Plastics base is fresh-keeping
Bag is less than 1g/m to the transmitance of vapor2.day.atm (40-50 microns of thickness), the compatibility to water is relatively low, in freshness protection package
Ponding breed bacteria easily occur causes fruits and vegetables to rot.
From embodiment 1-6 prepare fruits and vegetables normal temperature fresh-keeping packaging material oxygen gas permeability rate 104-106ml/
m2.day.atm between, moisture-vapor transmission 1-10g/m2.day.atm between, it can meet under fruits and vegetables normal temperature needed for respiration
Oxygen supply, and can discharge 5-20ppm bactericide in freshness protection package, prevent fruits and vegetables from growing pathogen, play sterilization fresh-keeping
Effect；By regulating course and barrier layer resin composition and thicknesses of layers change film gas permeability and bactericide rate of release and
Cycle；The concentration of sterilant of release is very low in freshness protection package, is not remained on packaged fruit and vegetable after testing.
Upper example is applied in fruit freshness preserving with regard to the multifunctional fruit wrapping film of the invention prepared, herein not one by one
Enumerate.
Those skilled in the art is it will be clearly understood that above preferred embodiment is simply illustrated to the present invention, not structure
Into limitation of the present invention.Various variations and equivalence replacement are carried out to technical scheme, without departing from the technology of the present invention
The principle and scope of scheme, all should cover among the scope of the claims in the present invention.
Claims (4)
1. a kind of paper-plastic stick wrapping film based on paper substrate, it is characterised in that according to order from inside outwards successively
Layer, barrier layer, paper substrate are produced for paper substrate, regulating course, bactericide；
The regulating course be cast from ethylene-vinyl acetate copolymer-polyacrylate blending resin on internal layer paper substrate and
Into controlling to adjust the polarity of layer by adjusting the addition of polyacrylate, the layer adjusted by the change of polarity and thickness
To the permeability of vapor and bactericide；The suitable blending ratio of polyacrylate is 50W% in this layer, and the thickness of this layer is
5-15 microns；
The bactericide produces layer and is made up of bactericide precursor substance and binding agent, and wherein bactericide precursor substance accounts for the total matter of the layer
The 10% of amount, binding agent selects EVA resin or polyurethane adhesive；The composition of bactericide precursor substance be lactic acid, calcium sulfite,
Wherein lactic acid content accounts for the 50-60% of bactericide precursor substance；
The barrier layer is cast on outer layer paper substrate from polyacrylates-polyethylene blending resin and formed, by adjusting poly- third
The change of the addition of olefin(e) acid ester and thickness adjusts transmitance of this layer to vapor and oxygen, suppresses the transmission of bactericide；
The suitable blending ratio of polyacrylate is 5-20W% in this layer, and the thickness of this layer is 5-15 microns.
2. the paper-plastic stick wrapping film based on paper substrate described in claim 1, it is characterised in that polyacrylate bag
Include polybutyl methacrylate, polymethyl methacrylate, polyethyl methacrylate, butyl polyacrylate.
3. the preparation method of the paper-plastic stick wrapping film based on paper substrate described in claim 1, is by being coated with tune
The internal layer paper substrate of ganglionic layer, it is coated with the outer layer paper substrate of barrier layer and produces the solvent-free complex method of layer with bactericide and obtain.
4. the freshness protection package that a kind of paper-plastic stick wrapping film based on paper substrate as described in claim 1 is made, in dress
Enter after fruits and vegetables, the gas phase that the vapor that fruits and vegetables respiration is produced can induce paper-plastic composite film release 5-20ppm is killed
Microbial inoculum 30-90 days, water conservation, sterilization, ventilative function are played to fruit, improve the shelf life of water fruits and vegetables at normal temperatures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310063998.5A CN103144845B (en) | 2013-03-01 | 2013-03-01 | The special paper-plastic composite film of fruit and vegetable normal-temperature fresh-keeping |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310063998.5A CN103144845B (en) | 2013-03-01 | 2013-03-01 | The special paper-plastic composite film of fruit and vegetable normal-temperature fresh-keeping |
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| CN103144845A CN103144845A (en) | 2013-06-12 |
| CN103144845B true CN103144845B (en) | 2017-09-05 |
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| CN201310063998.5A Expired - Fee Related CN103144845B (en) | 2013-03-01 | 2013-03-01 | The special paper-plastic composite film of fruit and vegetable normal-temperature fresh-keeping |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104109362A (en) * | 2014-08-06 | 2014-10-22 | 昆明春叶塑料制成品有限公司 | Environment-friendly biodegradable film for fruit and vegetable packaging and preparation method of film |
| CN105153825A (en) * | 2015-08-14 | 2015-12-16 | 常德市金润新材料科技有限公司无锡新材料研究院 | Moisture-retention waterborne coating as well as preparation method and application thereof |
| CN107097493A (en) * | 2017-04-26 | 2017-08-29 | 广州市花都联华包装材料有限公司 | A kind of constant humidity is guaranteed the quality flexible packaging film and its manufacture method |
| CN107522887B (en) * | 2017-09-13 | 2020-07-21 | 常德金德新材料科技股份有限公司 | Preservative film and preparation method thereof |
| CN107826460A (en) * | 2017-11-09 | 2018-03-23 | 常德金德新材料科技股份有限公司 | Fruits and vegetables fresh-keeping paper and preparation method thereof |
| CN115676134A (en) * | 2022-10-27 | 2023-02-03 | 赵梓俨 | g-C 3 N 4 Application of basic high-antibacterial high-barrier property modified atmosphere preservation plastic product |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63125165A (en) * | 1986-11-07 | 1988-05-28 | 大日本印刷株式会社 | Packaging material |
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| CN2795088Y (en) * | 2005-05-24 | 2006-07-12 | 杨文渊 | Pickled vegetable freshness preserving package bag |
| CN101601420A (en) * | 2009-06-30 | 2009-12-16 | 北京印刷学院 | But the Fresh-keeping Packaging for Fruits and Vegetables composite membrane of controlled-bactericide-release and preparation and application |
| CN102173146A (en) * | 2011-01-12 | 2011-09-07 | 北京印刷学院 | Multifunctional multilayer composite film for fruit preservation and preparation method thereof |
| CN102862361A (en) * | 2012-09-26 | 2013-01-09 | 北京印刷学院 | Fruit and vegetable freshness retaining packaging material capable of releasing 1-methyl cyclopropene and preparation method thereof |
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| CN103144845A (en) | 2013-06-12 |
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