CN105218919A - A kind of safe preservative film of high light transmittance and preparation technology thereof - Google Patents
A kind of safe preservative film of high light transmittance and preparation technology thereof Download PDFInfo
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- CN105218919A CN105218919A CN201510602793.9A CN201510602793A CN105218919A CN 105218919 A CN105218919 A CN 105218919A CN 201510602793 A CN201510602793 A CN 201510602793A CN 105218919 A CN105218919 A CN 105218919A
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- light transmittance
- high light
- preservative film
- germicide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses the safe preservative film of a kind of high light transmittance and preparation technology thereof, it is characterized in that: consist of by weight: the polyethylene of 1200 ~ 1400 parts, the calcium carbonate of 100 ~ 120 parts, the sodium alginate of 4 ~ 30 parts, the polyvinyl alcohol of 100 ~ 200 parts, the chitosan of 10 ~ 150 parts, the dioctyl phthalate (DOP) of 300 ~ 600 parts, the UV light absorber of 6 ~ 10 parts, the polyethylene wax of the antiseptic-germicide of 6 ~ 40 parts and 100 ~ 140 parts, wherein dioctyl phthalate (DOP) is softening agent.The beneficial effect that the present invention reaches: this technical matters is simple, product cost is lower.By adding appropriate inorganic particle, the weight of weightening finish film, while the transparency increasing film, further increases film strength and flexibility, makes it have better fresh-keeping effect; In addition prevent bacteria breed from ensureing the health of fruits and vegetables by adding antiseptic-germicide.
Description
Technical field
The invention belongs to technical field of plastic package, be specifically related to the safe preservative film of a kind of high light transmittance and preparation technology thereof.
Background technology
The fruits and vegetables convenience store in current supermarket has better attraction to allow sold fruits and vegetables, and often marked price after several fruits and vegetables individuality foam pallet and preservative film packing sold, the benefit so done is: one is make visually more to improve grade by packaging; Two are that of avoiding client ensures hygienic safety with direct contact of fruits and vegetables; Three is make client accomplish to buy as required by marked price.Because fruits and vegetables commodity itself are not totally aseptic, in reinsurance process, its bacterium originally existed therefore can be made unavoidably to breed further cause rotten corruption.Even if therefore adopt preservative film to carry out packaging process to it to be also difficult to significantly extend fresh keeping time, thus cause the high of storage cost.Then because the resistance light action of preservative film causes vision difference thus think that fruits and vegetables are stale missing purchase opportunity on the other hand.
Summary of the invention
The present invention proposes the safe preservative film of a kind of high light transmittance and preparation technology thereof, can grow and larger vision difference can not be caused to improve buying rate by anti-bacteria.
Technical solution of the present invention: the safe preservative film of a kind of high light transmittance, consist of by weight: the polyethylene of 1200 ~ 1400 parts, the calcium carbonate of 100 ~ 120 parts, the sodium alginate of 4 ~ 30 parts, the polyvinyl alcohol of 100 ~ 200 parts, the chitosan of 10 ~ 150 parts, the dioctyl phthalate (DOP) of 300 ~ 600 parts, the UV light absorber of 6 ~ 10 parts, the polyethylene wax of the antiseptic-germicide of 6 ~ 40 parts and 100 ~ 140 parts, wherein dioctyl phthalate (DOP) is softening agent.
In the present invention, antiseptic-germicide is the one in silver ion antimicrobial agent, Vanillin or ethyl vanillin aldehyde compound.
In the present invention, also comprise the ultramarine of 0.3 ~ 0.7 part, as complementary color agent.
In the present invention, calcium carbonate is calcium carbonate superfine powder, and its particle diameter is 0.02 ~ 0.08 μm.
In the present invention, consist of by weight: the polyethylene of 1200 parts, the calcium carbonate of 100 parts, the sodium alginate of 4 parts, the polyvinyl alcohol of 100 parts, the chitosan of 10 parts, the dioctyl phthalate (DOP) of 600 parts, the UV light absorber of 10 parts, the polyethylene wax of the antiseptic-germicide of 40 parts and 140 parts.
In the present invention, consist of by weight: the polyethylene of 1400 parts, the calcium carbonate of 120 parts, the sodium alginate of 30 parts, the polyvinyl alcohol of 200 parts, the chitosan of 150 parts, the dioctyl phthalate (DOP) of 300 parts, the UV light absorber of 6 parts, the polyethylene wax of the antiseptic-germicide of 6 parts and 100 parts.
In the present invention, consist of by weight: the polyethylene of 1300 parts, the calcium carbonate of 110 parts, the sodium alginate of 17 parts, the polyvinyl alcohol of 150 parts, the chitosan of 80 parts, the dioctyl phthalate (DOP) of 450 parts, the UV light absorber of 8 parts, the polyethylene wax of the antiseptic-germicide of 23 parts and 120 parts.
The invention also discloses the preparation technology of the safe preservative film of a kind of high light transmittance, comprise the following steps: step 1), dissolve: the polyethylene getting 1200 ~ 1400 parts by weight, the calcium carbonate of 100 ~ 120 parts, the sodium alginate of 4 ~ 30 parts, the polyvinyl alcohol of 100 ~ 200 parts, the chitosan of 10 ~ 150 parts, the dioctyl phthalate (DOP) of 300 ~ 600 parts, the UV light absorber of 6 ~ 10 parts, the polyethylene wax of the antiseptic-germicide of 6 ~ 40 parts and 100 ~ 140 parts; Above-mentioned raw materials mix and blend at 175 DEG C of temperature is dissolved, after stirring, is cooled to 160 DEG C; Step 2), blown film: cooled for the stirring in step 1 mixture is poured in twin screw extruder, extrudes and plasticate, blown film, dry; Blown film temperature is 170 DEG C, and the rotating speed of twin screw extruder is 20r/min.
The beneficial effect that the present invention reaches: this technical matters is simple, product cost is lower.By adding appropriate inorganic particle, the weight of weightening finish film, while the transparency increasing film, further increases film strength and flexibility, makes it have better fresh-keeping effect; In addition prevent bacteria breed from ensureing the health of fruits and vegetables by adding antiseptic-germicide.
Embodiment
Below in conjunction with embodiment, technical solution of the present invention is described in further detail, but protection scope of the present invention is not limited to described embodiment.
Embodiment one
The safe preservative film of a kind of high light transmittance, consist of by weight: the polyethylene of 1200 parts, the calcium carbonate of 100 parts, the sodium alginate of 4 parts, the polyvinyl alcohol of 100 parts, the chitosan of 10 parts, the dioctyl phthalate (DOP) of 600 parts, the UV light absorber of 10 parts, the antiseptic-germicide of 40 parts, the ultramarine of the polyethylene wax of 140 parts and 0.3 part.Wherein antiseptic-germicide is silver ion antimicrobial agent, further preferably with the SilvaDur of the Dow Chemical Company
tMeT product; Ultramarine is as complementary color agent; Calcium carbonate is calcium carbonate superfine powder, and its particle diameter is 0.02 μm.
Preparation technology comprises, step 1), dissolve: above-mentioned raw materials mix and blend at 174 DEG C of temperature is dissolved, after stirring, is cooled to 160 DEG C.Step 2), blown film: cooled for the stirring in step 1 mixture is poured in twin screw extruder, extrudes and plasticate, blown film, dry; Blown film temperature is 170 DEG C, and the rotating speed of twin screw extruder is 20r/min.
Embodiment two
The safe preservative film of a kind of high light transmittance, consist of by weight: the polyethylene of 1400 parts, the calcium carbonate of 120 parts, the sodium alginate of 30 parts, the polyvinyl alcohol of 200 parts, the chitosan of 150 parts, the dioctyl phthalate (DOP) of 300 parts, the UV light absorber of 6 parts, the antiseptic-germicide of 6 parts, the ultramarine of the polyethylene wax of 100 parts and 0.7 part.Wherein, antiseptic-germicide is Vanillin, and calcium carbonate is calcium carbonate superfine powder, and its particle diameter is 0.08 μm.
Embodiment three
The safe preservative film of a kind of high light transmittance, consist of by weight: the polyethylene of 1300 parts, the calcium carbonate of 110 parts, the sodium alginate of 17 parts, the polyvinyl alcohol of 150 parts, the chitosan of 80 parts, the dioctyl phthalate (DOP) of 450 parts, the UV light absorber of 8 parts, the antiseptic-germicide of 23 parts, the ultramarine of the polyethylene wax of 120 parts and 0.5 part.Wherein, antiseptic-germicide is ethyl vanillin aldehyde compound, and calcium carbonate is calcium carbonate superfine powder, and its particle diameter is 0.05 μm.
The main performance index of preservative film prepared by the various embodiments described above is recited in table 1.
The main performance index of preservative film prepared by table 1 various embodiments of the present invention
Test subject | Unit | Embodiment one | Embodiment two | Embodiment three | Reference examples |
Tensile strength | MPa | 40 | 45 | 43 | 37 |
Elongation at break | % | 202 | 219 | 210 | 155 |
Tear strength | N/mm | 118 | 129 | 122 | 94 |
Transmittance | % | 96 | 92 | 94 | 83 |
Rate of perviousness | g/(m 2·24h) | 57 | 63 | 60 | 51 |
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from spirit of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (8)
1. the safe preservative film of high light transmittance, it is characterized in that: consist of by weight: the polyethylene of 1200 ~ 1400 parts, the calcium carbonate of 100 ~ 120 parts, the sodium alginate of 4 ~ 30 parts, the polyvinyl alcohol of 100 ~ 200 parts, the chitosan of 10 ~ 150 parts, the dioctyl phthalate (DOP) of 300 ~ 600 parts, the UV light absorber of 6 ~ 10 parts, the polyethylene wax of the antiseptic-germicide of 6 ~ 40 parts and 100 ~ 140 parts, wherein dioctyl phthalate (DOP) is softening agent.
2. the safe preservative film of a kind of high light transmittance according to claim 1, is characterized in that: antiseptic-germicide is the one in silver ion antimicrobial agent, Vanillin or ethyl vanillin aldehyde compound.
3. the safe preservative film of a kind of high light transmittance according to claim 1, is characterized in that: the ultramarine also comprising 0.3 ~ 0.7 part, as complementary color agent.
4. the safe preservative film of a kind of high light transmittance according to claim 1, it is characterized in that: calcium carbonate is calcium carbonate superfine powder, its particle diameter is 0.02 ~ 0.08 μm.
5. according to the arbitrary described safe preservative film of a kind of high light transmittance of Claims 1-4, it is characterized in that: consist of by weight: the polyethylene of 1200 parts, the calcium carbonate of 100 parts, the sodium alginate of 4 parts, the polyvinyl alcohol of 100 parts, the chitosan of 10 parts, the dioctyl phthalate (DOP) of 600 parts, the UV light absorber of 10 parts, the polyethylene wax of the antiseptic-germicide of 40 parts and 140 parts.
6. according to the arbitrary described safe preservative film of a kind of high light transmittance of Claims 1-4, it is characterized in that: consist of by weight: the polyethylene of 1400 parts, the calcium carbonate of 120 parts, the sodium alginate of 30 parts, the polyvinyl alcohol of 200 parts, the chitosan of 150 parts, the dioctyl phthalate (DOP) of 300 parts, the UV light absorber of 6 parts, the polyethylene wax of the antiseptic-germicide of 6 parts and 100 parts.
7. according to the arbitrary described safe preservative film of a kind of high light transmittance of Claims 1-4, it is characterized in that: consist of by weight: the polyethylene of 1300 parts, the calcium carbonate of 110 parts, the sodium alginate of 17 parts, the polyvinyl alcohol of 150 parts, the chitosan of 80 parts, the dioctyl phthalate (DOP) of 450 parts, the UV light absorber of 8 parts, the polyethylene wax of the antiseptic-germicide of 23 parts and 120 parts.
8. a preparation technology for the safe preservative film of high light transmittance, is characterized in that: comprise the following steps:
Step 1), dissolve: the polyethylene getting 1200 ~ 1400 parts by weight, the calcium carbonate of 100 ~ 120 parts, the sodium alginate of 4 ~ 30 parts, the polyvinyl alcohol of 100 ~ 200 parts, the chitosan of 10 ~ 150 parts, the dioctyl phthalate (DOP) of 300 ~ 600 parts, the UV light absorber of 6 ~ 10 parts, the polyethylene wax of the antiseptic-germicide of 6 ~ 40 parts and 100 ~ 140 parts; Above-mentioned raw materials mix and blend at 175 DEG C of temperature is dissolved, after stirring, is cooled to 160 DEG C;
Step 2), blown film: cooled for the stirring in step 1 mixture is poured in twin screw extruder, extrudes and plasticate, blown film, dry; Blown film temperature is 170 DEG C, and the rotating speed of twin screw extruder is 20r/min.
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106349537A (en) * | 2016-08-26 | 2017-01-25 | 桐城市中汇塑业有限公司 | Magnetic plastic film for food packaging bags and preparation method of magnetic plastic film |
CN106751919A (en) * | 2016-11-25 | 2017-05-31 | 江苏爱西施科技服务咨询股份有限公司 | A kind of silk preservative film and preparation method thereof |
CN108659326A (en) * | 2018-03-30 | 2018-10-16 | 扬州市腾龙包装材料有限公司 | A kind of greening covering film and its processing method |
CN109337157A (en) * | 2018-08-20 | 2019-02-15 | 蚌埠市维光塑胶制品有限公司 | A kind of antibacterial food freshness protection package |
CN113248827A (en) * | 2021-05-14 | 2021-08-13 | 广州市纳能环保技术开发有限公司 | Sterilizing and fresh-keeping tablet and preparation method and application thereof |
Citations (1)
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CN103689750A (en) * | 2013-12-21 | 2014-04-02 | 栾晓健 | Antibacterial antiseptic food preservation film |
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2015
- 2015-09-21 CN CN201510602793.9A patent/CN105218919A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103689750A (en) * | 2013-12-21 | 2014-04-02 | 栾晓健 | Antibacterial antiseptic food preservation film |
Non-Patent Citations (1)
Title |
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黄绵佳: "《《热带园艺产品采后实验原理与技术》", 30 November 2012 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106349537A (en) * | 2016-08-26 | 2017-01-25 | 桐城市中汇塑业有限公司 | Magnetic plastic film for food packaging bags and preparation method of magnetic plastic film |
CN106751919A (en) * | 2016-11-25 | 2017-05-31 | 江苏爱西施科技服务咨询股份有限公司 | A kind of silk preservative film and preparation method thereof |
CN108659326A (en) * | 2018-03-30 | 2018-10-16 | 扬州市腾龙包装材料有限公司 | A kind of greening covering film and its processing method |
CN109337157A (en) * | 2018-08-20 | 2019-02-15 | 蚌埠市维光塑胶制品有限公司 | A kind of antibacterial food freshness protection package |
CN113248827A (en) * | 2021-05-14 | 2021-08-13 | 广州市纳能环保技术开发有限公司 | Sterilizing and fresh-keeping tablet and preparation method and application thereof |
CN113248827B (en) * | 2021-05-14 | 2023-04-28 | 广州市纳能环保技术开发有限公司 | Sterilizing fresh-keeping tablet and preparation method and application thereof |
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