CN104151711A - Plastic membrane easy to tear - Google Patents

Plastic membrane easy to tear Download PDF

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Publication number
CN104151711A
CN104151711A CN201410356618.1A CN201410356618A CN104151711A CN 104151711 A CN104151711 A CN 104151711A CN 201410356618 A CN201410356618 A CN 201410356618A CN 104151711 A CN104151711 A CN 104151711A
Authority
CN
China
Prior art keywords
parts
vinyl acetate
polypropylene
plastics film
ethylene
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.)
Pending
Application number
CN201410356618.1A
Other languages
Chinese (zh)
Inventor
余伯春
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TONGXIANG ZHENHUA NEW PACKAGING MATERIALS Co Ltd
Original Assignee
TONGXIANG ZHENHUA NEW PACKAGING MATERIALS Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TONGXIANG ZHENHUA NEW PACKAGING MATERIALS Co Ltd filed Critical TONGXIANG ZHENHUA NEW PACKAGING MATERIALS Co Ltd
Priority to CN201410356618.1A priority Critical patent/CN104151711A/en
Publication of CN104151711A publication Critical patent/CN104151711A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C08L23/0853—Vinylacetate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • 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
    • C08J2323/08—Copolymers of ethene
    • 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
    • C08L2205/03—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
    • C08L2207/04—Thermoplastic elastomer
    • 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
    • C08L2207/066—LDPE (radical process)
    • 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
    • C08L2207/10—Peculiar tacticity
    • C08L2207/14—Amorphous or atactic polypropylene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

The invention discloses a plastic membrane easy to tear, belonging to the field of packaging materials. The plastic membrane comprises the following raw materials in parts by weight: 15-20 parts of polybutylene, 20-25 parts of polyolefin elastomer, 10-15 parts of low density polyethylene, 20-25 parts of ethylene-vinyl acetate copolymer and 30-35 parts of polypropylene. The polypropylene comprises the following raw materials in parts by weight: 40-45parts of random polypropylene copolymer, 30-40 parts of homo-polypropylene and 20-30 parts of block co-polypropylene, wherein the ethylene-vinyl acetate copolymer contains 10%-20% of vinyl acetate. The plastic membrane easy to tear can guarantee the binding force between different materials, does not layer, is environmental friendly and non-toxic, and can meet the requirement of use; and packaging bags prepared by the plastic membrane can be easily torn off to take out products.

Description

One is easily torn plastics film
Technical field
The present invention relates to a kind of plastics film, especially one is easily torn plastics film, belongs to wrapping material field.
Background technology
At present, plastic packaging bag is owing to having good storage characteristics and portability, can rapidly and efficiently product be stored to carrying, that in our daily productive life, applies is more and more extensive, traditional film is being made after packing bag, packing bag is used for stored prod, in the time the product in packing bag need to being taken out, packing bag need to be torn, thereby reach the object that product is taken out, because the viscosity between existing film differing materials differs larger, can not guarantee the mobile synchronism of differing materials, cause producing certain material in processing and cannot whole family width curtain coating arrive die head edge, can not guarantee the bonding force of differing materials interlayer, product easily produces layering, adopt such film to make after packing bag, in the time packing bag need to being torn to the product that takes out the inside, film is difficult for being torn easily, the frock that need to cut by some cuts packing bag, reduce workman's working efficiency, existing plastics film is making in packing bag packs product, generally can utilize mechanical means to be provided with tearable mouth in packing bag one side, user opens packing bag by tearable mouth, but tearable mouth is set in packing bag, because the easy-torn line place of tearable mouth and the firm degree of packing bag are lower than other place of packing bag, in product stored transporting, easily throw off at the easy-torn line place of tearable mouth, cause the product in packing bag to leak outside, cause the waste of product, reduce economic benefit.
The patent that application number is 2011203270343 provides a kind of easy-tear type composite package film, the higher polyethylene terephthalate rete of this kind of product strength is by the poroid indentation in the die-cut place of cutting rushing on film, polyethylene film layer and complete the remaining of aluminium foil layer of effect torn in the weak impact hardly of intensity, both there is good sealing effectiveness, can just can tear along the easy-torn line of indentation by very little power again, form the rule place opening of tearing along line of weakness, but this kind of film made packing bag product stored when transporting, easy-torn line is easily thrown off formation opening with packing bag, cause the product in packing bag to leak outside, reduce economic benefit, can not meet the needs of production.
Summary of the invention
Technical problem to be solved by this invention is to overcome existing above-mentioned deficiency in prior art, and a kind of bonding force that can ensure between film differing materials is provided, and guarantees that film is not stratified, and that can easily film be torn easily tears plastics film.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
One is easily torn plastics film, it is characterized in that: describedly easily tear the raw material that plastics film comprises following weight parts: 15 ~ 20 parts of polybutene, 20 ~ 25 parts of polyolefin elastomers, 10 ~ 15 parts of Low Density Polyethylenes, 20 ~ 25 parts of ethylene-vinyl acetate copolymers, 30 ~ 35 parts of polypropylene; The raw material that described polypropylene comprises following weight parts: 40 ~ 45 parts of atactic copolymerized polypropenes, 30 ~ 40 parts of homo-polypropylene, 20 ~ 30 parts of block copolymerization polypropylenes; Vinyl acetate content in described ethylene-vinyl acetate copolymer is between 10% ~ 20%.
Further, described polyolefin elastomer adopts Thermoplastic Elastomer, Olefinic.
Further, the described thickness that easily tears plastics film is 30 ~ 50 microns.
Further, the vinyl acetate content in described ethylene-vinyl acetate copolymer is between 15% ~ 18%.
The present invention compared with prior art, have the following advantages and effect: the present invention is a kind of, and easily to tear the composition of plastics film simple, the thin film stability of producing is high, raw material mixed melting extruding by multiple environment-protecting asepsis forms, significantly improve the mobile synchronism of differing materials co-extrusion, guarantee that the differing materials that viscosity differs larger can whole family width curtain coating arrive film head edge, guarantee the interlayer bonding force between differing materials, product is not stratified, when utilizing film to make packing bag stored prod, can easily packing bag be torn, guarantee the taking-up that product can be rapidly and efficiently, easy-torn line is not set in packing bag, avoid easy-torn line and packing bag to throw off formation opening and caused the product in packing bag to leak outside, avoid product to cause waste, guarantee economic benefit, and in ethylene-vinyl acetate copolymer, be provided with the Vinyl Acetate Monomer of certain content, improve the snappiness of film, shock resistance, filler intermiscibility and sealing property, guarantee easily to tear the quality of plastics film, meet the needs of production.
Embodiment
For ease of understanding the present invention, one of the present invention is easily torn plastics film, and to enumerate embodiment as follows, and described embodiment can do further to supplement and explanation to the present invention, but the present invention is not limited to these embodiment.
Embodiment 1
This kind easily tears the raw material that plastics film comprises following weight parts: 15 parts of polybutene, 20 parts of polyolefin elastomers, 10 parts of Low Density Polyethylenes, 20 parts of ethylene-vinyl acetate copolymers, 35 parts of polypropylene.
The raw material that polypropylene comprises following weight parts: 40 parts of atactic copolymerized polypropenes, 30 parts of homo-polypropylene, 30 parts of block copolymerization polypropylenes.
Vinyl acetate content in ethylene-vinyl acetate copolymer is 15%, and the thickness that easily tears plastics film is 30 microns.
Embodiment 2
This kind easily tears the raw material that plastics film comprises following weight parts: 15 parts of polybutene, 22 parts of polyolefin elastomers, 13 parts of Low Density Polyethylenes, 20 parts of ethylene-vinyl acetate copolymers, 30 parts of polypropylene.
The raw material that polypropylene comprises following weight parts: 40 parts of atactic copolymerized polypropenes, 30 parts of homo-polypropylene, 30 parts of block copolymerization polypropylenes.
Vinyl acetate content in ethylene-vinyl acetate copolymer is 15%, and the thickness that easily tears plastics film is 30 microns.
Embodiment 3
This kind easily tears the raw material that plastics film comprises following weight parts: 15 parts of polybutene, 25 parts of polyolefin elastomers, 10 parts of Low Density Polyethylenes, 20 parts of ethylene-vinyl acetate copolymers, 30 parts of polypropylene.
The raw material that polypropylene comprises following weight parts: 40 parts of atactic copolymerized polypropenes, 30 parts of homo-polypropylene, 20 parts of block copolymerization polypropylenes.
Vinyl acetate content in ethylene-vinyl acetate copolymer is 15%, and the thickness that easily tears plastics film is 35 microns.
Embodiment 4
This kind easily tears the raw material that plastics film comprises following weight parts: 15 parts of polybutene, 25 parts of polyolefin elastomers, 10 parts of Low Density Polyethylenes, 20 parts of ethylene-vinyl acetate copolymers, 30 parts of polypropylene.
The raw material that polypropylene comprises following weight parts: 42 parts of atactic copolymerized polypropenes, 33 parts of homo-polypropylene, 25 parts of block copolymerization polypropylenes.
Vinyl acetate content in ethylene-vinyl acetate copolymer is 16%, and the thickness that easily tears plastics film is 35 microns.
Embodiment 5
This kind easily tears the raw material that plastics film comprises following weight parts: 15 parts of polybutene, 25 parts of polyolefin elastomers, 10 parts of Low Density Polyethylenes, 20 parts of ethylene-vinyl acetate copolymers, 30 parts of polypropylene.
The raw material that polypropylene comprises following weight parts: 45 parts of atactic copolymerized polypropenes, 35 parts of homo-polypropylene, 20 parts of block copolymerization polypropylenes.
Vinyl acetate content in ethylene-vinyl acetate copolymer is 16%, and the thickness that easily tears plastics film is, 40 microns.
Embodiment 6
This kind easily tears the raw material that plastics film comprises following weight parts: 15 parts of polybutene, 25 parts of polyolefin elastomers, 10 parts of Low Density Polyethylenes, 20 parts of ethylene-vinyl acetate copolymers, 30 parts of polypropylene.
The raw material that polypropylene comprises following weight parts: 45 parts of atactic copolymerized polypropenes, 30 parts of homo-polypropylene, 25 parts of block copolymerization polypropylenes.
Vinyl acetate content in ethylene-vinyl acetate copolymer is 17%, and the thickness that easily tears plastics film is 40 microns.
Embodiment 7
This kind easily tears the raw material that plastics film comprises following weight parts: 20 parts of polybutene, 20 parts of polyolefin elastomers, 10 parts of Low Density Polyethylenes, 20 parts of ethylene-vinyl acetate copolymers, 30 parts of polypropylene.
The raw material that polypropylene comprises following weight parts: 45 parts of atactic copolymerized polypropenes, 35 parts of homo-polypropylene, 20 parts of block copolymerization polypropylenes.
Vinyl acetate content in ethylene-vinyl acetate copolymer is 18%, and the thickness that easily tears plastics film is 45 microns.
Embodiment 8
This kind easily tears the raw material that plastics film comprises following weight parts: 15 parts of polybutene, 20 parts of polyolefin elastomers, 15 parts of Low Density Polyethylenes, 20 parts of ethylene-vinyl acetate copolymers, 30 parts of polypropylene.
The raw material that polypropylene comprises following weight parts: 40 parts of atactic copolymerized polypropenes, 35 parts of homo-polypropylene, 25 parts of block copolymerization polypropylenes.
Vinyl acetate content in ethylene-vinyl acetate copolymer is 18%, and the thickness that easily tears plastics film is 50 microns.
Although the present invention with embodiment openly as above; but it is not in order to limit protection scope of the present invention; any technician who is familiar with this technology, not departing from change and the retouching done in the spirit and scope of the present invention, all should belong to protection scope of the present invention.

Claims (4)

1. one kind is easily torn plastics film, it is characterized in that: describedly easily tear the raw material that plastics film comprises following weight parts: 15 ~ 20 parts of polybutene, 20 ~ 25 parts of polyolefin elastomers, 10 ~ 15 parts of Low Density Polyethylenes, 20 ~ 25 parts of ethylene-vinyl acetate copolymers, 30 ~ 35 parts of polypropylene; The raw material that described polypropylene comprises following weight parts: 40 ~ 45 parts of atactic copolymerized polypropenes, 30 ~ 40 parts of homo-polypropylene, 20 ~ 30 parts of block copolymerization polypropylenes; Vinyl acetate content in described ethylene-vinyl acetate copolymer is between 10% ~ 20%.
2. one according to claim 1 is easily torn plastics film, it is characterized in that: described polyolefin elastomer adopts Thermoplastic Elastomer, Olefinic.
3. one according to claim 1 is easily torn plastics film, it is characterized in that: the described thickness that easily tears plastics film is 30 ~ 50 microns.
4. one according to claim 1 is easily torn plastics film, it is characterized in that: the vinyl acetate content in described ethylene-vinyl acetate copolymer is between 15% ~ 18%.
CN201410356618.1A 2014-07-25 2014-07-25 Plastic membrane easy to tear Pending CN104151711A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410356618.1A CN104151711A (en) 2014-07-25 2014-07-25 Plastic membrane easy to tear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410356618.1A CN104151711A (en) 2014-07-25 2014-07-25 Plastic membrane easy to tear

Publications (1)

Publication Number Publication Date
CN104151711A true CN104151711A (en) 2014-11-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106916365A (en) * 2017-03-11 2017-07-04 东莞市开源塑化科技有限公司 The bamboo fibre film and its manufacture craft of a kind of antimildew and antibacterial for easily tearing

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1810864A (en) * 2006-01-19 2006-08-02 海宁海欣真空包装有限公司 Adhesive protecting film
CN101293977A (en) * 2007-04-26 2008-10-29 华夏海湾塑胶股份有限公司 Non-halide thin film for rubber belt and preparation
CN101443191A (en) * 2006-05-16 2009-05-27 西巴控股有限公司 Mono- and multi-layer blown films
CN102336940A (en) * 2011-07-20 2012-02-01 金发科技股份有限公司 Composition of air-permeable film with low permeation volume and preparation method thereof
CN103275377A (en) * 2013-06-04 2013-09-04 汕头保税区联通工业有限公司 Easy-to-tear plastic film material and preparation technology thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1810864A (en) * 2006-01-19 2006-08-02 海宁海欣真空包装有限公司 Adhesive protecting film
CN101443191A (en) * 2006-05-16 2009-05-27 西巴控股有限公司 Mono- and multi-layer blown films
CN101293977A (en) * 2007-04-26 2008-10-29 华夏海湾塑胶股份有限公司 Non-halide thin film for rubber belt and preparation
CN102336940A (en) * 2011-07-20 2012-02-01 金发科技股份有限公司 Composition of air-permeable film with low permeation volume and preparation method thereof
CN103275377A (en) * 2013-06-04 2013-09-04 汕头保税区联通工业有限公司 Easy-to-tear plastic film material and preparation technology thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106916365A (en) * 2017-03-11 2017-07-04 东莞市开源塑化科技有限公司 The bamboo fibre film and its manufacture craft of a kind of antimildew and antibacterial for easily tearing

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Application publication date: 20141119