CN104669735A - Low-temperature refrigeration-type multilayer co-extruded plastic film material - Google Patents

Low-temperature refrigeration-type multilayer co-extruded plastic film material Download PDF

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Publication number
CN104669735A
CN104669735A CN201310612522.2A CN201310612522A CN104669735A CN 104669735 A CN104669735 A CN 104669735A CN 201310612522 A CN201310612522 A CN 201310612522A CN 104669735 A CN104669735 A CN 104669735A
Authority
CN
China
Prior art keywords
film material
tie
low
layer
plastic film
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
CN201310612522.2A
Other languages
Chinese (zh)
Inventor
姚海滨
蔡连祥
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.)
Tianjin Hai Jing Plastic Products Co Ltd
Original Assignee
Tianjin Hai Jing Plastic Products 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 Tianjin Hai Jing Plastic Products Co Ltd filed Critical Tianjin Hai Jing Plastic Products Co Ltd
Priority to CN201310612522.2A priority Critical patent/CN104669735A/en
Publication of CN104669735A publication Critical patent/CN104669735A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B65D65/40—Applications of laminates for particular packaging purposes
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention discloses a low-temperature refrigeration-type multilayer co-extruded plastic film material. Through a seven-layer co-extrusion film blowing technology, the low-temperature refrigeration-type multilayer co-extruded plastic film material with a PE/EVA/TIE/EVOH/TIE/PE/PE structure is produced and a layer mass ratio of PE/EVA/TIE/EVOH/TIE/PE/PE is 2: 1: 1: 1: 1: 2: 2. A packaging bag prepared from the low-temperature refrigeration-type multilayer co-extruded plastic film material has plastic film flexibility in a low-temperature refrigeration environment, does not produce pin holes after embrittlement and can limitedly protect foods after embrittlement.

Description

The multi-layer co-extruded plastics thin-film material of a kind of cryogenic freezing type
Technical field
The present invention relates to a kind of polymeric material field, particularly the multi-layer co-extruded plastics thin-film material of a kind of cryogenic freezing type.
Background technology
In life, people are the shelf-life extending food, often storage food in low temperature environment.Common plastics is packaged in low temperature environment and is easy to become fragile, thus occurs pin hole in packaging bag, and destroys the protection of packaging bag.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of cryogenic freezing type multi-layer co-extruded plastics thin-film material.
Technical scheme of the present invention is:
The multi-layer co-extruded plastics thin-film material of a kind of cryogenic freezing type, adopt seven-layer co-extrusion film-blowing process, produce the multi-layer co-extruded plastics thin-film material of cryogenic freezing type that structure is PE/ EVA/TIE/EVOH/TIE/ PE/PE, its interlayer quality proportioning is PE:EVA:TIE: EVOH:TIE:PE:PE=2:1:1:1:1:2:2.
Described PE, for all adopting metallocene PE (mPE) and linear polyethylene (LLDPE) blended by 4:6, makes film have special modification.
The multi-layer co-extruded plastics thin-film material of a kind of cryogenic freezing type of production of the present invention; use packaging bag prepared by this kind of thin-film material; the pliability of plastic sheeting can be kept under cryogenic freezing environment, after can not becoming fragile, easily occur pin hole, still can limited protection food.
detailed description of the invention:
The multi-layer co-extruded plastics thin-film material of a kind of cryogenic freezing type, adopt seven-layer co-extrusion film-blowing process, produce the multi-layer co-extruded plastics thin-film material of cryogenic freezing type that structure is PE/ EVA/TIE/EVOH/TIE/ PE/PE, its interlayer quality proportioning is PE:EVA:TIE: EVOH:TIE:PE:PE=2:1:1:1:1:2:2.
Described PE, for all adopting metallocene PE (mPE) and linear polyethylene (LLDPE) blended by 4:6, makes film have special modification.
By EVA resin, PE resin, TIE resin, EVOH resin fusion plastification in different extruders respectively, resin after melting is clamp-oned in same die head, be evenly distributed in die head by certain interlayer structure, then obtain the multi-layer co-extruded plastics thin-film material of a kind of cryogenic freezing type through inflation, cooling and shaping, rolling.

Claims (3)

1. the multi-layer co-extruded plastics thin-film material of cryogenic freezing type, is characterized in that: produce the multi-layer co-extruded plastics thin-film material of cryogenic freezing type that structure is PE/ EVA/TIE/EVOH/TIE/ PE/PE.
2. the multi-layer co-extruded plastics thin-film material of a kind of cryogenic freezing type according to claim 1, it is characterized in that: structure is the multi-layer co-extruded plastics thin-film material of cryogenic freezing type of PE/ EVA/TIE/EVOH/TIE/ PE/PE, and its interlayer quality proportioning is PE:EVA:TIE: EVOH:TIE:PE:PE=2:1:1:1:1:2:2.
3. the multi-layer co-extruded plastics thin-film material of a kind of cryogenic freezing type according to claim 1, is characterized in that: PE, for all adopting metallocene PE (mPE) and linear polyethylene (LLDPE) blended by 4:6, makes film have special modification.
CN201310612522.2A 2013-11-28 2013-11-28 Low-temperature refrigeration-type multilayer co-extruded plastic film material Pending CN104669735A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310612522.2A CN104669735A (en) 2013-11-28 2013-11-28 Low-temperature refrigeration-type multilayer co-extruded plastic film material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310612522.2A CN104669735A (en) 2013-11-28 2013-11-28 Low-temperature refrigeration-type multilayer co-extruded plastic film material

Publications (1)

Publication Number Publication Date
CN104669735A true CN104669735A (en) 2015-06-03

Family

ID=53305560

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310612522.2A Pending CN104669735A (en) 2013-11-28 2013-11-28 Low-temperature refrigeration-type multilayer co-extruded plastic film material

Country Status (1)

Country Link
CN (1) CN104669735A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112940376A (en) * 2021-01-23 2021-06-11 南昌诚鑫包装有限公司 Manufacturing method of puncture-resistant high-strength frozen polyethylene film

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112940376A (en) * 2021-01-23 2021-06-11 南昌诚鑫包装有限公司 Manufacturing method of puncture-resistant high-strength frozen polyethylene film
CN112940376B (en) * 2021-01-23 2023-04-07 南昌诚鑫包装有限公司 Manufacturing method of puncture-resistant high-strength frozen polyethylene film

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Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150603