CN103772864A - Food antibacterial packaging film and preparation method thereof - Google Patents
Food antibacterial packaging film and preparation method thereof Download PDFInfo
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- CN103772864A CN103772864A CN201410024286.7A CN201410024286A CN103772864A CN 103772864 A CN103772864 A CN 103772864A CN 201410024286 A CN201410024286 A CN 201410024286A CN 103772864 A CN103772864 A CN 103772864A
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Abstract
The invention discloses a food antibacterial packaging film and a preparation method thereof. The food antibacterial packaging film comprises the following components in parts by weight: 6 to 10 parts of polyvinyl alcohol, 2 to 4 parts of chitosan, 1.2 to 1.8 parts of glutaraldehyde, 1.2 to 2.5 parts of polyvinyl chloride, 0.5 to 0.8 part of acetic acid, 0.01 to 0.03 part of bromohexane poly(vinylpyridine) and 70 to 80 parts of water. The preparation method comprises the following steps of dissolving the acetic acid into water, adding the chitosan, heating the mixture to 70 to 80 DEG C, stirring the mixture until the chitosan is completely dissolved, adding polyvinyl alcohol, polyvinyl chloride, glutaraldehyde and bromohexane poly(vinylpyridine) to obtain viscose gel, pouring the gel into a double-screw extruder, extruding the sol, and blowing a film. Trace bromohexane poly(vinylpyridine) is added in the preparation process of the film preparation material, and the preparation process is simple and easy. The food antibacterial packaging film is proved in the experiment that the staphylococcus aureus and colibacillus can be effectively inhibited, no component is permeated at the temperature of 150 DEG C, and the use is safe.
Description
Technical field
The invention belongs to field of packaging material, be specifically related to a kind of food anti-bacterial packaging film and preparation method thereof.
Background technology
The mankind's health level in the serious threat always of the harmful microorganism of occurring in nature, and the whole world has millions of people to die from bacterium infection every year.Therefore, countries in the world are more and more paid attention to the research of antiseptic-germicide and antimicrobial prod.Ripe talking about " illness finds its way in by the mouth ", food is the best place of all kinds of microbial reproductions, once pack improperly, is easy to breed bacteria, is therefore badly in need of exploitation and possesses the packing film of anti-microbial property.
Generally, common material just becomes anti-biotic material after adding antiseptic-germicide.Antiseptic-germicide is different from the sterilization implication in people's life to killing of harmful HUMAN HEALTH bacterium, and it more lays particular emphasis on long-acting sterilization, fungistatic effect.The approach of giving food packaging film antibacterial has two kinds: one be after packing film film forming in surface coated or spray antiseptic-germicide, then dry acquisition, the anti-bacterial packaging film antiseptic-germicide that this method makes easily oozes out residual to food, has potential safety hazard; One is being configured to add anti-biotic material in pleurodiaphragmatic in terspace liquid, and then extruding film forming, and the antibacterial film that this method makes uses comparatively safe, but preparation process complexity, and cost is high, is not widely used.Traditional sterilizing agent or antiseptic-germicide, due to toxicity more or less itself, have limited its application aspect food product pack.
Summary of the invention
The object of the invention is to provide a kind of food anti-bacterial packaging film and preparation method thereof, in film forming material preparation process, adds antimicrobial component, give packing film anti-microbial property, and preparation is simple.
To achieve these goals, the technical solution used in the present invention is: a kind of food anti-bacterial packaging film, the mass fraction of component and each component is as follows: 6 ~ 10 parts of polyvinyl alcohol, 2 ~ 4 parts of chitosans, 1.2 ~ 1.8 parts of glutaraldehyde, 1.2 ~ 2.5 parts of polyvinyl chloride, 0.5 ~ 0.8 part of acetic acid, 0.01 ~ 0.03 part of bromohexane polyvinylpyridine, 70 ~ 80 parts, water.
The massfraction of component and each component is preferably as follows: 8 parts of polyvinyl alcohol, 3 parts of chitosans, 1.5 parts of glutaraldehyde, 2.0 parts of polyvinyl chloride, 0.6 part of acetic acid, 0.02 part of bromohexane polyvinylpyridine, 70 ~ 80 parts, water.
The preparation method of food fresh keeping membrane, acetic acid is soluble in water, then add chitosan, be heated to 70 ~ 80 ℃, be stirred to completely and dissolve, then add polyvinyl alcohol, polyvinyl chloride, glutaraldehyde and bromohexane polyvinylpyridine to stir the colloidal sol that obtains thickness, pour in twin screw extruder, extrude and plasticate, blown film.
Beneficial effect: the invention provides a kind of food anti-bacterial packaging film, selecting polyvinyl alcohol and the chitosan of safety non-toxic is main component, in film forming material preparation process, add Bromide hexane polyvinylpyridine, can give packing film anti-microbial property, and preparation is simple, experiment shows, food anti-bacterial packaging film provided by the invention can effectively suppress streptococcus aureus, colibacillary growing, and at 150 ℃, ooze out without composition, use safety.
Embodiment
Embodiment 1:
A kind of food anti-bacterial packaging film, the mass fraction of component and each component is as follows: 6 parts of polyvinyl alcohol, 4 parts of chitosans, 1.2 parts of glutaraldehyde, 2.5 parts of polyvinyl chloride, 0.5 part of acetic acid, 0.03 part of bromohexane polyvinylpyridine, 70 parts, water.
Acetic acid is soluble in water, then add chitosan, be heated to 70 ~ 80 ℃, be stirred to completely and dissolve, then add polyvinyl alcohol, polyvinyl chloride, glutaraldehyde and bromohexane polyvinylpyridine to stir the colloidal sol that obtains thickness, pour in twin screw extruder, extrude and plasticate, blown film.The temperature of extruding 1st～5th district is respectively 115 ℃, 135 ℃, 155 ℃, 175 ℃, 175 ℃, and head temperature is 155 ℃, and rotating speed is 20 r/ min.In film-blowing process, raw-material extruding pelletization temperature is 135 ℃, 155 ℃, 165 ℃, 160 ℃, and rotating speed is 20 r/ min; Blown film temperature is respectively 130 ℃, 150 ℃, 175 ℃, 170 ℃, and rotating speed is 35r/ min.
Embodiment 2:
A kind of food anti-bacterial packaging film, the mass fraction of component and each component is as follows: 10 parts of polyvinyl alcohol, 2 parts of chitosans, 1.8 parts of glutaraldehyde, 1.2 parts of polyvinyl chloride, 0.8 part of acetic acid, 0.01 part of bromohexane polyvinylpyridine, 80 parts, water.
Acetic acid is soluble in water, then add chitosan, be heated to 70 ~ 80 ℃, be stirred to completely and dissolve, then add polyvinyl alcohol, polyvinyl chloride, glutaraldehyde and bromohexane polyvinylpyridine to stir the colloidal sol that obtains thickness, pour in twin screw extruder, extrude and plasticate, blown film.The temperature of extruding 1st～5th district is respectively 115 ℃, 135 ℃, 155 ℃, 175 ℃, 175 ℃, and head temperature is 155 ℃, and rotating speed is 20 r/ min.In film-blowing process, raw-material extruding pelletization temperature is 135 ℃, 155 ℃, 165 ℃, 160 ℃, and rotating speed is 20 r/ min; Blown film temperature is respectively 130 ℃, 150 ℃, 175 ℃, 170 ℃, and rotating speed is 35r/ min.
Embodiment 3:
A kind of food anti-bacterial packaging film, the mass fraction of component and each component is preferably as follows: 8 parts of polyvinyl alcohol, 3 parts of chitosans, 1.5 parts of glutaraldehyde, 2.0 parts of polyvinyl chloride, 0.6 part of acetic acid, 0.02 part of bromohexane polyvinylpyridine, 70 ~ 80 parts, water.
Acetic acid is soluble in water, then add chitosan, be heated to 70 ~ 80 ℃, be stirred to completely and dissolve, then add polyvinyl alcohol, polyvinyl chloride, glutaraldehyde and bromohexane polyvinylpyridine to stir the colloidal sol that obtains thickness, pour in twin screw extruder, extrude and plasticate, blown film.The temperature of extruding 1st～5th district is respectively 115 ℃, 135 ℃, 155 ℃, 175 ℃, 175 ℃, and head temperature is 155 ℃, and rotating speed is 20 r/ min.In film-blowing process, raw-material extruding pelletization temperature is 135 ℃, 155 ℃, 165 ℃, 160 ℃, and rotating speed is 20 r/ min; Blown film temperature is respectively 130 ℃, 150 ℃, 175 ℃, 170 ℃, and rotating speed is 35r/ min.
Claims (3)
1. a food anti-bacterial packaging film, the massfraction that it is characterized in that component and each component is as follows: 6 ~ 10 parts of polyvinyl alcohol, 2 ~ 4 parts of chitosans, 1.2 ~ 1.8 parts of glutaraldehyde, 1.2 ~ 2.5 parts of polyvinyl chloride, 0.5 ~ 0.8 part of acetic acid, 0.01 ~ 0.03 part of bromohexane polyvinylpyridine, 70 ~ 80 parts, water.
2. a kind of food fresh keeping membrane according to claim 1, is characterized in that: the massfraction of component and each component is as follows: 8 parts of polyvinyl alcohol, 3 parts of chitosans, 1.5 parts of glutaraldehyde, 2.0 parts of polyvinyl chloride, 0.6 part of acetic acid, 0.02 part of bromohexane polyvinylpyridine, 70 ~ 80 parts, water.
3. the preparation method of a kind of food fresh keeping membrane described in claim 1 or 2, it is characterized in that: acetic acid is soluble in water, then add chitosan, be heated to 70 ~ 80 ℃, be stirred to completely and dissolve, then add polyvinyl alcohol, polyvinyl chloride, glutaraldehyde and bromohexane polyvinylpyridine to stir the colloidal sol that obtains thickness, pour in twin screw extruder, extrude and plasticate, blown film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410024286.7A CN103772864A (en) | 2014-01-20 | 2014-01-20 | Food antibacterial packaging film and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410024286.7A CN103772864A (en) | 2014-01-20 | 2014-01-20 | Food antibacterial packaging film and preparation method thereof |
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| CN103772864A true CN103772864A (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410024286.7A Withdrawn CN103772864A (en) | 2014-01-20 | 2014-01-20 | Food antibacterial packaging film and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111073188A (en) * | 2019-12-25 | 2020-04-28 | 大连工业大学 | Preparation method and application of antibacterial composite membrane for fresh aquatic products |
| CN112931510A (en) * | 2021-02-01 | 2021-06-11 | 河北科技师范学院 | Chitosan and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101351163A (en) * | 2005-11-10 | 2009-01-21 | 忠诚股份有限公司 | Elastomeric article with antimicrobial coating |
| CN102504296A (en) * | 2011-09-26 | 2012-06-20 | 常州绿之源高分子材料有限公司 | Preparation method of water-soluble chitosan/polyvinyl alcohol composite films |
| CN102775750A (en) * | 2012-08-23 | 2012-11-14 | 胡建平 | Degradable multiband light conversion ground film and preparation method thereof |
-
2014
- 2014-01-20 CN CN201410024286.7A patent/CN103772864A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101351163A (en) * | 2005-11-10 | 2009-01-21 | 忠诚股份有限公司 | Elastomeric article with antimicrobial coating |
| CN102504296A (en) * | 2011-09-26 | 2012-06-20 | 常州绿之源高分子材料有限公司 | Preparation method of water-soluble chitosan/polyvinyl alcohol composite films |
| CN102775750A (en) * | 2012-08-23 | 2012-11-14 | 胡建平 | Degradable multiband light conversion ground film and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111073188A (en) * | 2019-12-25 | 2020-04-28 | 大连工业大学 | Preparation method and application of antibacterial composite membrane for fresh aquatic products |
| CN112931510A (en) * | 2021-02-01 | 2021-06-11 | 河北科技师范学院 | Chitosan and preparation method thereof |
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Application publication date: 20140507 |