CN104859127A - Antibacterial packaging film preparation process - Google Patents
Antibacterial packaging film preparation process Download PDFInfo
- Publication number
- CN104859127A CN104859127A CN201510200373.8A CN201510200373A CN104859127A CN 104859127 A CN104859127 A CN 104859127A CN 201510200373 A CN201510200373 A CN 201510200373A CN 104859127 A CN104859127 A CN 104859127A
- Authority
- CN
- China
- Prior art keywords
- packaging film
- film preparation
- preparation technology
- pla
- temperature
- Prior art date
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/78—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/78—Measuring, controlling or regulating
- B29C49/786—Temperature
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92209—Temperature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Wrappers (AREA)
Abstract
The invention provides an antibacterial packaging film preparation process. A PLA material selected by the process is a high-performance lactic acid polymer prepared by degrading, fermenting and chemically polymerizing such grain starches as corns, is a recognized environment-friendly plastic, and has better thermoplasticity, excellent processability and no poison and irritation; and a prepared antibacterial packaging film has an obvious inhibition effect on common food microorganisms.
Description
Technical field
The present invention relates to a kind of packaging film, particularly relate to a kind of anti-bacterial packaging film preparation technology.
Background technology
In the food industry, utilize food antimicrobial packaging preservation technique to be all the focus studied to suppress the proliferate of putrefactive microorganisms all the time.In order to solve food waste, the loss of nutritive value and this problem of generation of toxin, obtain longer Food Shelf-life and freshness, people can add varieties of food items anticorrisive agent in food production, and a large amount of uses of anticorrisive agent be both unfavorable for that improving food quality can endanger the healthy generation of consumer.In this context, food antimicrobial packaging just arises at the historic moment, relative to traditional anti-corrosion method, the advantage of antimicrobial packaging is antiseptic directly and Food Contact, under the prerequisite reaching same fungistatic effect, reduce the direct addition of antiseptic in food to greatest extent, the antimicrobial packaging simultaneously with slow-release capability can form long-acting lasting fresh-keeping effect.
Summary of the invention
The invention provides a kind of anti-bacterial packaging film preparation technology.For realizing object of the present invention, technical scheme of the present invention is as follows:
A kind of anti-bacterial packaging film preparation technology, it is characterized in that, described processing step is:
(1) by biodegradable polylactic acid (PLA) particle dry 9-12h in the vacuum drying chamber of 70-80 DEG C, add polyethylene glycol (PEG) afterwards, through twin (double) screw extruder melt blending after mixing, extruder each section of temperature from charge door to head be set as respectively 100-120 DEG C, 130-140 DEG C, 150-160 DEG C, 150-160 DEG C, 165-170 DEG C, put into baking oven afterwards and dry;
(2) the raw material extruding pelletization after step (1) being machined Blown Film, wherein the temperature of film blowing machine screw controls at 130-170 DEG C, and the rotating speed of screw rod is 60-70r/min.
Preferably, in described step (1), the mixing ratio of PLA and PEG is 9:1.
Preferably, in described step (1), bake out temperature is 30-45 DEG C, and drying time is 1-2h.
Beneficial effect: the invention provides a kind of anti-bacterial packaging film preparation technology, the PLA material of this process selection is by the high-performance lactic acid polymer of the cereal starch such as corn through degraded, fermentation, chemical polymerization, it is a kind of generally acknowledged environmental friendliness plastic, have good thermoplasticity, excellent processability and nontoxic, nonirritant, the anti-bacterial packaging film produced all has obvious inhibitory action to conventional food microorganism.
Detailed description of the invention
A kind of anti-bacterial packaging film preparation technology, it is characterized in that, described processing step is:
(1) by biodegradable polylactic acid (PLA) particle dry 9h in the vacuum drying chamber of 70 DEG C, add polyethylene glycol (PEG) afterwards, through twin (double) screw extruder melt blending after mixing, extruder each section of temperature from charge door to head is set as 100 DEG C, 130 DEG C, 150 DEG C, 150 DEG C, 165 DEG C respectively, puts into baking oven afterwards and dries;
(2) the raw material extruding pelletization after step (1) being machined Blown Film, wherein the temperature of film blowing machine screw controls at 130 DEG C, and the rotating speed of screw rod is 60r/min.
Wherein, in described step (1), the mixing ratio of PLA and PEG is 9:1, and in described step (1), bake out temperature is 45 DEG C, and drying time is 2h.
The invention provides a kind of anti-bacterial packaging film preparation technology, the PLA material of this process selection is by the high-performance lactic acid polymer of the cereal starch such as corn through degraded, fermentation, chemical polymerization, it is a kind of generally acknowledged environmental friendliness plastic, have good thermoplasticity, excellent processability and nontoxic, nonirritant, the anti-bacterial packaging film produced all has obvious inhibitory action to conventional food microorganism.
As known by the technical knowledge, the present invention can be realized by other the embodiment not departing from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, is not only.Within the scope of the present invention all or be all included in the invention being equal to the change in scope of the present invention.
Claims (3)
1. an anti-bacterial packaging film preparation technology, is characterized in that, described processing step is:
(1) by biodegradable polylactic acid (PLA) particle dry 9-12h in the vacuum drying chamber of 70-80 DEG C, add polyethylene glycol (PEG) afterwards, through twin (double) screw extruder melt blending after mixing, extruder each section of temperature from charge door to head be set as respectively 100-120 DEG C, 130-140 DEG C, 150-160 DEG C, 150-160 DEG C, 165-170 DEG C, put into baking oven afterwards and dry;
(2) the raw material extruding pelletization after step (1) being machined Blown Film, wherein the temperature of film blowing machine screw controls at 130-170 DEG C, and the rotating speed of screw rod is 60-70r/min.
2. anti-bacterial packaging film preparation technology according to claim 1, is characterized in that, in described step (1), the mixing ratio of PLA and PEG is 9:1.
3. anti-bacterial packaging film preparation technology according to claim 1, is characterized in that, in described step (1), bake out temperature is 30-45 DEG C, and drying time is 1-2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510200373.8A CN104859127A (en) | 2015-04-27 | 2015-04-27 | Antibacterial packaging film preparation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510200373.8A CN104859127A (en) | 2015-04-27 | 2015-04-27 | Antibacterial packaging film preparation process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104859127A true CN104859127A (en) | 2015-08-26 |
Family
ID=53905502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510200373.8A Pending CN104859127A (en) | 2015-04-27 | 2015-04-27 | Antibacterial packaging film preparation process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104859127A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106280195A (en) * | 2016-08-15 | 2017-01-04 | 卞佳林 | A kind of preparation method of package of fresh flower film |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10291569A (en) * | 1996-08-14 | 1998-11-04 | Nippon Foil Mfg Co Ltd | Packaging material and packaging container |
| CN101240086A (en) * | 2008-03-14 | 2008-08-13 | 上海悦仕生物材料有限公司 | Total-biodegradation plastic film and preparation method thereof |
| CN103724957A (en) * | 2013-12-17 | 2014-04-16 | 浙江普利特新材料有限公司 | Novel polylactic acid thin film material and preparation method thereof |
| CN104212136A (en) * | 2014-07-24 | 2014-12-17 | 昆明理工大学 | Polylactic acid anti-bacterial-activity packaging material and preparation method thereof |
-
2015
- 2015-04-27 CN CN201510200373.8A patent/CN104859127A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10291569A (en) * | 1996-08-14 | 1998-11-04 | Nippon Foil Mfg Co Ltd | Packaging material and packaging container |
| CN101240086A (en) * | 2008-03-14 | 2008-08-13 | 上海悦仕生物材料有限公司 | Total-biodegradation plastic film and preparation method thereof |
| CN103724957A (en) * | 2013-12-17 | 2014-04-16 | 浙江普利特新材料有限公司 | Novel polylactic acid thin film material and preparation method thereof |
| CN104212136A (en) * | 2014-07-24 | 2014-12-17 | 昆明理工大学 | Polylactic acid anti-bacterial-activity packaging material and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106280195A (en) * | 2016-08-15 | 2017-01-04 | 卞佳林 | A kind of preparation method of package of fresh flower film |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150826 |
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| RJ01 | Rejection of invention patent application after publication |