CN103724887A - Antibacterial cooked food preservative film - Google Patents
Antibacterial cooked food preservative film Download PDFInfo
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- CN103724887A CN103724887A CN201310609811.7A CN201310609811A CN103724887A CN 103724887 A CN103724887 A CN 103724887A CN 201310609811 A CN201310609811 A CN 201310609811A CN 103724887 A CN103724887 A CN 103724887A
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- preservative film
- food preservative
- prepared food
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- cooked food
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Abstract
The invention discloses an antibacterial cooked food preservative film which comprises main ingredients in percentage as follows: 80%-90% of polyvinylidene chloride particles, 3%-6% of nano-silver particles, 2%-4% of inorganic fillers and the balance of relevant assistants. According to the disclosed antibacterial cooked food preservative film, ingredients are reasonably prepared, the performance is stable after film forming, the nano-silver particles added in the mixing process have excellent and durable antibacterial efficacy, various common bacteria and fungi can be effectively blocked, and the quality of packaged cooked food is ensured.
Description
Technical field
The present invention relates to a kind of preservative film, relate in particular to a kind of prepared food preservative film with antibiotic effect, belong to plastic products technology field.
Background technology
Preservative film is the plastic packing products of people for fresh-keeping foodstuff, and preservative film need to possess appropriate oxygen-permeable and Water Vapour Permeability, to regulate by fresh-keeping product oxygen and moisture around, intercepts dust, thereby extends the freshness date of food.Preservative film is on the market take ethene masterbatch as starting material mostly, and according to the different sorts of ethene masterbatch, preservative film can be divided into three major types.First polyethylene, is called for short PE, and this material is mainly used in the packing of food, the fruit that we buy usually, this film that vegetables are used; It two is polyvinyl chloride, is called for short PVC, and this material also can be for food product pack, but it has a certain impact to the security of human body; It three is polyvinylidene dichloride, is called for short PVDC, is mainly used in the packing of the products such as some prepared food, ham.In these three kinds of preservative films, the preservative film of PE and this bi-material of PVDC is safe to human body, can relievedly use, and PVC fresh-preserving film contains carcinogenic substance, larger to harm.
During preservative film, be everlasting and be used as the outer packaging of delicatessen products in supermarket, packaged prepared food easy other article of contact in carrying process, the time one is long, and bacterium easily sees through preservative film and invades prepared food, affects the quality of prepared food.Therefore, for the preservative film of packing prepared food, must aspect anti-microbial property, must paid attention to, but existing preservative film is ripe and perfect not enough in the technology aspect this, needs further to be researched and developed.
Summary of the invention
For the demand, the invention provides a kind of antimicrobial form prepared food preservative film, this preservative film becomes assignment system reasonable, stable performance after film forming, its Silver nanoparticles including has good antibiotic effect, can intercept multiple common bacteria and fungi, with the quality of guaranteeing that packaged prepared food is good.
The present invention is a kind of antimicrobial form prepared food preservative film, and the main component of this preservative film and percentage composition proportioning thereof are: polyvinylidene dichloride particle 80%-90%, Silver nanoparticles 3%-6%, mineral filler 2%-4%, all the other are relevant auxiliary agent.
In a preferred embodiment of the present invention, the main component of described preservative film and percentage composition proportioning thereof are: polyvinylidene dichloride particle 84%-88%, Silver nanoparticles 4%-5%, mineral filler 2%-3%, all the other are relevant auxiliary agent.
In a preferred embodiment of the present invention, the granularity of described polyvinylidene dichloride particle is 100-150 order.
In a preferred embodiment of the present invention, the particle diameter of described Silver nanoparticles is about 30nm.
In a preferred embodiment of the present invention, silicon dioxide powder is selected in described mineral filler, and its powder granularity is about 500-600 order.
In a preferred embodiment of the present invention, described auxiliary agent comprises antifogging agent and opening agent.
The present invention has disclosed a kind of antimicrobial form prepared food preservative film, this preservative film becomes assignment system reasonable, stable performance after film forming, the Silver nanoparticles adding in mix process has good antibiotic effect, and antibiotic effect is lasting, can effectively intercept multiple common bacteria and fungi, guarantee the quality that packaged prepared food is good.
Embodiment
Below preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
Main component and the percentage composition proportioning thereof of the antimicrobial form prepared food preservative film that the present invention mentions are: polyvinylidene dichloride particle 80%-90%, Silver nanoparticles 3%-6%, mineral filler 2%-4%, all the other are relevant auxiliary agent.
Further illustrate, the main component of this preservative film and percentage composition proportioning thereof are: polyvinylidene dichloride particle 84%-88%, Silver nanoparticles 4%-5%, mineral filler 2%-3%, all the other are relevant auxiliary agent; Wherein, the granularity of polyvinylidene dichloride particle is 100-150 order; The particle diameter of Silver nanoparticles is about 30nm; Silicon dioxide powder is selected in mineral filler, and its powder granularity is about 500-600 order, and the Main Function of this filler is to make can form miniature hole in film, to improve the ventilation property of film; Auxiliary agent comprises antifogging agent and opening agent.
The preparation method's of the antimicrobial form prepared food preservative film that the present invention mentions concrete preparation process is as follows:
A) the standby raw material of choosing, the main component of raw material and percentage composition proportioning thereof are: polyvinylidene dichloride particle 84%-85%, Silver nanoparticles 4%-4.5%, mineral filler 2%-2.5%, all the other are relevant auxiliary agent; Wherein, the granularity of polyvinylidene dichloride particle is 100-150 order; The particle diameter of Silver nanoparticles is about 30nm; Silicon dioxide powder is selected in mineral filler, and its powder granularity is about 500-550 order; Auxiliary agent is mainly comprised of antifogging agent and opening agent, and antifogging agent is selected xylitol ester, and opening agent is selected amine hydroxybenzene;
B) heating batch mixing, adds mixing machine successively by the complete raw material of preparation, uniform stirring heating, and churning time is controlled at 20-22 minute, and mixing machine temperature is controlled at 115 ℃-120 ℃;
C) extruded film pipe, the present invention adopts and flat squeeze into blow moulding and be filmed, compound is parallel extruding in twin screw extruder, extrusion temperature is controlled at 100 ℃ of left and right, after extruding by being folded to sports film forming pipe; The length-to-diameter ratio of extruder screw is 25, and extruded velocity is controlled at 0.5-0.6m/s, and the film tube thickness making is about 2-3mm;
D) propel the price of traction, film pipe expands rapidly under pressurized air effect, and compressed air pressure is controlled at 2-2.5MPa; Periosteum after expansion moves upward under take off roll effect, by collapser, forms sheet film; In the horizontal direction then, vertical direction and tiltedly under the pressure roller effect of veer, stretch and cooling film forming progressively;
E) film take-up, the film after cooling forming is wound into two-fold film volume finally by wind up roll, and film thickness is controlled at 0.07-0.08mm, and film-folding footpath is about 200mm.
The present invention has disclosed a kind of antimicrobial form prepared food preservative film, be characterized in: this preservative film becomes assignment system reasonable, stable performance after film forming, the Silver nanoparticles adding in mix process has good antibiotic effect, and antibiotic effect is lasting, can effectively intercept multiple common bacteria and fungi, guarantee the quality that packaged prepared food is good.
The above; it is only the specific embodiment of the present invention; but protection scope of the present invention is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the present invention; the variation that can expect without creative work or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (6)
1. an antimicrobial form prepared food preservative film, is characterized in that, the main component of this preservative film and percentage composition proportioning thereof are: polyvinylidene dichloride particle 80%-90%, Silver nanoparticles 3%-6%, mineral filler 2%-4%, all the other are relevant auxiliary agent.
2. antimicrobial form prepared food preservative film according to claim 1, it is characterized in that, the main component of described preservative film and percentage composition proportioning thereof are: polyvinylidene dichloride particle 84%-88%, Silver nanoparticles 4%-5%, mineral filler 2%-3%, all the other are relevant auxiliary agent.
3. antimicrobial form prepared food preservative film according to claim 1, is characterized in that, the granularity of described polyvinylidene dichloride particle is 100-150 order.
4. antimicrobial form prepared food preservative film according to claim 1, is characterized in that, the particle diameter of described Silver nanoparticles is about 30nm.
5. antimicrobial form prepared food preservative film according to claim 1, is characterized in that, silicon dioxide powder is selected in described mineral filler, and its powder granularity is about 500-600 order.
6. antimicrobial form prepared food preservative film according to claim 1, is characterized in that, described auxiliary agent comprises antifogging agent and opening agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310609811.7A CN103724887A (en) | 2013-11-27 | 2013-11-27 | Antibacterial cooked food preservative film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310609811.7A CN103724887A (en) | 2013-11-27 | 2013-11-27 | Antibacterial cooked food preservative film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103724887A true CN103724887A (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310609811.7A Pending CN103724887A (en) | 2013-11-27 | 2013-11-27 | Antibacterial cooked food preservative film |
Country Status (1)
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| CN (1) | CN103724887A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106905645A (en) * | 2017-03-10 | 2017-06-30 | 广西点图包装有限公司 | Food fresh keeping membrane |
| CN107531923A (en) * | 2015-04-30 | 2018-01-02 | 株式会社吴羽 | Vinylidene chloride resin film |
| CN108517093A (en) * | 2018-03-21 | 2018-09-11 | 郑州甲乙贝包装设计有限公司 | A kind of active packing preservative film and preparation method thereof |
| CN108892900A (en) * | 2018-06-19 | 2018-11-27 | 山东农业大学 | A kind of PVDC composition and preparation method thereof for cooked product packaging |
| GB2605166A (en) * | 2021-03-24 | 2022-09-28 | Symphony Env Ltd | Additive composition |
-
2013
- 2013-11-27 CN CN201310609811.7A patent/CN103724887A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107531923A (en) * | 2015-04-30 | 2018-01-02 | 株式会社吴羽 | Vinylidene chloride resin film |
| CN107531923B (en) * | 2015-04-30 | 2020-10-30 | 株式会社吴羽 | Vinylidene chloride resin film |
| CN106905645A (en) * | 2017-03-10 | 2017-06-30 | 广西点图包装有限公司 | Food fresh keeping membrane |
| CN108517093A (en) * | 2018-03-21 | 2018-09-11 | 郑州甲乙贝包装设计有限公司 | A kind of active packing preservative film and preparation method thereof |
| CN108892900A (en) * | 2018-06-19 | 2018-11-27 | 山东农业大学 | A kind of PVDC composition and preparation method thereof for cooked product packaging |
| GB2605166A (en) * | 2021-03-24 | 2022-09-28 | Symphony Env Ltd | Additive composition |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140416 |