CN104497391A - Film for foods and production method thereof - Google Patents
Film for foods and production method thereof Download PDFInfo
- Publication number
- CN104497391A CN104497391A CN201410737088.5A CN201410737088A CN104497391A CN 104497391 A CN104497391 A CN 104497391A CN 201410737088 A CN201410737088 A CN 201410737088A CN 104497391 A CN104497391 A CN 104497391A
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- Prior art keywords
- parts
- density polyethylene
- low density
- food grade
- film
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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
-
- 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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/14—Gas barrier composition
-
- 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
-
- 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
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2314/00—Polymer mixtures characterised by way of preparation
- C08L2314/06—Metallocene or single site catalysts
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (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)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
The invention discloses a film for foods. The film is prepared from the following components in parts by weight: 70-80 parts of high density polyethylene, 5-10 parts of metallocene-linear low density polyethylene, 5-10 parts of linear low density polyethylene, 5-10 parts of dioctyl adipate, 5-10 parts of acetic ether, 5-10 parts of nitrocellulose, 5-10 parts of polyamide resin, 0.1-1 part of zinc oxide and 1-5 parts of filler. The film for foods has good barrier property and air-tightness, excellent pollution resistance and high strength; and the preparation method is simple and easy to operate, is low in investment cost, and is advantageous to large-scale production.
Description
Technical field
The present invention relates to packing film field, particularly a kind of food grade film and production method thereof.
Background technology
Current food packaging industry says that the packaging base material film quantity needed is large, kind is many, adopts the film of single raw material production to be difficult to adapt to the packing instructions of Special food.Trace it to its cause, although producer's production technique of mainly respectively producing plastic raw materials is each has something to recommend him, often kind of raw material has its weak point, so the film produced is difficult to the demand meeting various situation.Although also there are the way adopting different material used in combination in some companies, owing to lacking necessary testing installation and the testing program of test set and system, its effect is unsatisfactory.
The information being disclosed in this background technology part is only intended to increase the understanding to general background of the present invention, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Summary of the invention
In order to overcome prior art Problems existing, the object of the present invention is to provide the food grade film of a kind of high barrier, high-air-tightness, high strength.
For achieving the above object, the invention provides a kind of food grade film, meter comprises following component by weight: high density polyethylene(HDPE) 70 ~ 80 parts, metallocene linear-low density polyethylene 5 ~ 10 parts, linear low density polyethylene 5 ~ 10 parts, oxalic acid dioctyl ester 5 ~ 10 parts, vinyl acetic monomer 5 ~ 10 parts, soluble cotton 5 ~ 10 parts, polyamide resin 5 ~ 10 parts, 0.1 ~ 1 part, zinc oxide, filler 1 ~ 5 part.
Preferably, in technique scheme, described food grade film, meter comprises following component by weight: high density polyethylene(HDPE) 75 parts, metallocene linear-low density polyethylene 7 parts, linear low density polyethylene 8 parts, oxalic acid dioctyl ester 7 parts, vinyl acetic monomer 9 parts, soluble cotton 8 parts, polyamide resin 8 parts, 0.5 part, zinc oxide, filler 3 parts.
Preferably, in technique scheme, described filler is fabric fibre.
A preparation method for food grade film, comprises the following steps:
(1) raw material needed for production is taken on demand;
(2) raw material is mixed, adopt back the mode of heating up in a steamer, control temperature 150 ~ 200 DEG C, stir material with the speed that rotating speed is 80 ~ 100r/min, material is thoroughly dissolved, obtains mixed solution;
(3) mixed solution is left standstill 1 ~ 2 hour at 100 ~ 130 DEG C, pour the advection mould being preheated to 90 ~ 100 DEG C into, curtain coating, on the mirror steel plate of room temperature, makes the rapid gel of mixed solution chilling, and it is peeled off obtained high-temp liquid plastics film from steel plate.
Compared with prior art, the present invention has following beneficial effect: food grade film of the present invention, barrier and resistance to air loss good, there is good resistance to crocking, and intensity is high.Preparation method is simple, and easy handling, cost of investment is low, is beneficial to scale operation.
Embodiment
Below in conjunction with specific embodiment, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of embodiment.
Embodiment 1
A preparation method for food grade film, comprises the following steps:
(1) take the raw material needed for production on demand, meter comprises following component by weight: high density polyethylene(HDPE) 75 parts, metallocene linear-low density polyethylene 7 parts, linear low density polyethylene 8 parts, oxalic acid dioctyl ester 7 parts, vinyl acetic monomer 9 parts, soluble cotton 8 parts, polyamide resin 8 parts, 0.5 part, zinc oxide, filler 3 parts;
(2) raw material is mixed, adopt back the mode of heating up in a steamer, control temperature 180 DEG C, be that the speed of 100r/min stirs material with rotating speed, material thoroughly dissolved, obtains mixed solution;
(3) mixed solution is left standstill 2 hours at 110 DEG C, pour the advection mould being preheated to 95 DEG C into, curtain coating, on the mirror steel plate of room temperature, makes the rapid gel of mixed solution chilling, and it is peeled off obtained high-temp liquid plastics film from steel plate.
Embodiment 2
A preparation method for food grade film, comprises the following steps:
(1) take the raw material needed for production on demand, meter comprises following component by weight: high density polyethylene(HDPE) 70 parts, metallocene linear-low density polyethylene 5 parts, linear low density polyethylene 5 parts, oxalic acid dioctyl ester 5 parts, vinyl acetic monomer 5 parts, soluble cotton 5 parts, polyamide resin 5 parts, 0.1 part, zinc oxide, filler 1 part;
(2) raw material is mixed, adopt back the mode of heating up in a steamer, control temperature 150 DEG C, be that the speed of 80r/min stirs material with rotating speed, material thoroughly dissolved, obtains mixed solution;
(3) mixed solution is left standstill 1 hour at 100 DEG C, pour the advection mould being preheated to 90 DEG C into, curtain coating, on the mirror steel plate of room temperature, makes the rapid gel of mixed solution chilling, and it is peeled off obtained high-temp liquid plastics film from steel plate.
Embodiment 3
A preparation method for food grade film, comprises the following steps:
(1) take the raw material needed for production on demand, meter comprises following component by weight: high density polyethylene(HDPE) 80 parts, metallocene linear-low density polyethylene 10 parts, linear low density polyethylene 10 parts, oxalic acid dioctyl ester 10 parts, vinyl acetic monomer 10 parts, soluble cotton 10 parts, polyamide resin 5 ~ 10 parts, 1 part, zinc oxide, filler 5 parts;
(2) raw material is mixed, adopt back the mode of heating up in a steamer, control temperature 200 DEG C, be that the speed of 100r/min stirs material with rotating speed, material thoroughly dissolved, obtains mixed solution;
(3) mixed solution is left standstill 2 hours at 130 DEG C, pour the advection mould being preheated to 100 DEG C into, curtain coating, on the mirror steel plate of room temperature, makes the rapid gel of mixed solution chilling, and it is peeled off obtained high-temp liquid plastics film from steel plate.
The aforementioned description to concrete exemplary of the present invention is to illustrate and the object of illustration.These descriptions not want the present invention to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present invention and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present invention and various different selection and change.Scope of the present invention is intended to limited by claims and equivalents thereof.
Claims (4)
1. a food grade film, it is characterized in that, meter comprises following component by weight: high density polyethylene(HDPE) 70 ~ 80 parts, metallocene linear-low density polyethylene 5 ~ 10 parts, linear low density polyethylene 5 ~ 10 parts, oxalic acid dioctyl ester 5 ~ 10 parts, vinyl acetic monomer 5 ~ 10 parts, soluble cotton 5 ~ 10 parts, polyamide resin 5 ~ 10 parts, 0.1 ~ 1 part, zinc oxide, filler 1 ~ 5 part.
2. food grade film according to claim 1, it is characterized in that, meter comprises following component by weight: high density polyethylene(HDPE) 75 parts, metallocene linear-low density polyethylene 7 parts, linear low density polyethylene 8 parts, oxalic acid dioctyl ester 7 parts, vinyl acetic monomer 9 parts, soluble cotton 8 parts, polyamide resin 8 parts, 0.5 part, zinc oxide, filler 3 parts.
3. food grade film according to claim 1 and 2, is characterized in that, described filler is fabric fibre.
4. a preparation method for food grade film according to claim 1, is characterized in that, comprise the following steps:
(1) raw material needed for production is taken on demand;
(2) raw material is mixed, adopt back the mode of heating up in a steamer, control temperature 150 ~ 200 DEG C, stir material with the speed that rotating speed is 80 ~ 100r/min, material is thoroughly dissolved, obtains mixed solution;
(3) mixed solution is left standstill 1 ~ 2 hour at 100 ~ 130 DEG C, pour the advection mould being preheated to 90 ~ 100 DEG C into, curtain coating, on the mirror steel plate of room temperature, makes the rapid gel of mixed solution chilling, and it is peeled off obtained high-temp liquid plastics film from steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410737088.5A CN104497391A (en) | 2014-12-05 | 2014-12-05 | Film for foods and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410737088.5A CN104497391A (en) | 2014-12-05 | 2014-12-05 | Film for foods and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104497391A true CN104497391A (en) | 2015-04-08 |
Family
ID=52938854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410737088.5A Pending CN104497391A (en) | 2014-12-05 | 2014-12-05 | Film for foods and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104497391A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109081990A (en) * | 2018-07-24 | 2018-12-25 | 桐城市正阳包装有限公司 | A kind of resistance to plastic packaging bag film used |
| CN109228579A (en) * | 2018-07-24 | 2019-01-18 | 江阴中达软塑新材料股份有限公司 | A kind of high efficiency bidirectional stretching polypropylene film and its manufacturing process |
| CN109535521A (en) * | 2018-11-09 | 2019-03-29 | 安徽华驰塑业有限公司 | A kind of plastic shopping bag film formulation and preparation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241299A (en) * | 2010-05-13 | 2011-11-16 | 上海展骋高分子材料有限公司 | Aluminum-plastic co-extrusion high-resistance liquid package membrane material and preparation method thereof |
| CN103625052A (en) * | 2013-08-02 | 2014-03-12 | 苏州艾兴无纺布制品有限公司 | Ultrathin film with high barrier properties and preparation process thereof |
| CN103788446A (en) * | 2012-10-31 | 2014-05-14 | 中国石油化工股份有限公司 | Polyethylene resin composition used as geomembrane special material and preparation method thereof |
-
2014
- 2014-12-05 CN CN201410737088.5A patent/CN104497391A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241299A (en) * | 2010-05-13 | 2011-11-16 | 上海展骋高分子材料有限公司 | Aluminum-plastic co-extrusion high-resistance liquid package membrane material and preparation method thereof |
| CN103788446A (en) * | 2012-10-31 | 2014-05-14 | 中国石油化工股份有限公司 | Polyethylene resin composition used as geomembrane special material and preparation method thereof |
| CN103625052A (en) * | 2013-08-02 | 2014-03-12 | 苏州艾兴无纺布制品有限公司 | Ultrathin film with high barrier properties and preparation process thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109081990A (en) * | 2018-07-24 | 2018-12-25 | 桐城市正阳包装有限公司 | A kind of resistance to plastic packaging bag film used |
| CN109228579A (en) * | 2018-07-24 | 2019-01-18 | 江阴中达软塑新材料股份有限公司 | A kind of high efficiency bidirectional stretching polypropylene film and its manufacturing process |
| CN109535521A (en) * | 2018-11-09 | 2019-03-29 | 安徽华驰塑业有限公司 | A kind of plastic shopping bag film formulation and preparation method |
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| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20180209 |
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| AD01 | Patent right deemed abandoned |