CN107042673B - A kind of not slime body composite package film and its production technology - Google Patents

A kind of not slime body composite package film and its production technology Download PDF

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Publication number
CN107042673B
CN107042673B CN201710219412.8A CN201710219412A CN107042673B CN 107042673 B CN107042673 B CN 107042673B CN 201710219412 A CN201710219412 A CN 201710219412A CN 107042673 B CN107042673 B CN 107042673B
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layer
density polyethylene
low density
film
ldpe
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CN107042673A (en
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鲍祖本
汪学文
张和平
吴旭峰
王健
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Huangshan Novel Co Ltd
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Huangshan Novel Co Ltd
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    • 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
    • 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
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/327—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polyolefins obtained by a metallocene or single-site catalyst
    • 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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • 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
    • 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
    • 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
    • C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing four or more carbon atoms
    • C08L23/0815—Copolymers of ethene with unsaturated hydrocarbons only containing four or more carbon atoms with aliphatic 1-olefins containing one carbon-to-carbon double bond
    • 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 atoms other than carbon or hydrogen
    • C08L23/0853—Ethene vinyl acetate copolymers
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • B32B2255/205—Metallic coating
    • 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
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging
    • 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
    • B65D2565/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D2565/38—Packaging materials of special type or form
    • B65D2565/381—Details of 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
    • 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
    • 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
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2427/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2427/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2427/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08J2427/18—Homopolymers or copolymers of tetrafluoroethylene
    • 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
    • C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
    • C08J2483/04—Polysiloxanes
    • 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
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

The present invention relates to a kind of not slime body composite package film and its production technologies.Composite package film includes successively compound laminated polyester film, aluminized mylar layer, film layer；Film layer includes corona layer, middle layer, hot sealing layer, corona layer includes linear low density polyethylene and low density polyethylene (LDPE), middle layer includes low density polyethylene (LDPE) and high density polyethylene (HDPE), hot sealing layer includes ethylene-vinyl acetate copolymer and modified resin or hot sealing layer includes metallocene PE, low density polyethylene (LDPE), linear low density polyethylene and modified resin, and modified resin includes silicone, polytetrafluoroethylene (PTFE), fumed silica.When being used for filling liquid, liquid does not adhere to the composite package film on heat-sealing bed boundary, but quickly forms spherical beads on heat-sealing bed boundary, and neatly leave heat-sealing bed boundary under the effect of gravity.In addition, composite package film of the present invention can also obtain suitable heat seal strength in lower heat-sealing temperature or higher packaging speed.

Description

A kind of not slime body composite package film and its production technology
Technical field
The invention belongs to package compound thin film technique field, be specifically related to a kind of not slime body composite package film and its Production technology.
Background technique
Existing package compound film is easy to appear Railway Project in packing liquid content: splashing in filling liquid packaging The liquid risen is easy to be adhered to the seal region of packaging film or bag, causes sealing loosely or false sealing phenomenon；The liquid of packaging Content is hung on the inner wall of packaging film, reduces the illustrative of packaging film；The liquid contents of packaging are adhered on packaging film, eventually End client using when be easy to produce waste and using trouble, the big Yoghourt epiphragma of especially current consumption figure.
Existing package compound film is mainly the relatively low-surface-energy for utilizing the polyolefin resins such as inner layer polyethylene/polypropylene Nonwettable attribute of general liquid is prevented to adhere to, but there are many this way limitation, it is desirable that packaging liquid content The surface of object can be lower than the surface energy of polyolefin resin.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of not slime body composite package film and its production technologies, should Composite package film solves the problems, such as liquid product adherency packaging film and use scope is wide, can be used for packing any liquid and produces Product.
In order to achieve the object of the present invention, the invention adopts the following technical scheme:
A kind of not slime body composite package film, including successively compound laminated polyester film, aluminized mylar layer, polyethylene Film layer；The film layer includes corona layer, middle layer, hot sealing layer, and the corona layer includes that mass ratio is 1:(1.9 ~2.1) linear low density polyethylene and low density polyethylene (LDPE), the middle layer include mass ratio be (1.9~2.1): 1 it is low close Polyethylene and high density polyethylene (HDPE) are spent, the hot sealing layer includes first group of mixture or second group of mixture；Described first group mixed It closes material to be made of ethylene-vinyl acetate copolymer and modified resin, second group of mixture is by metallocene PE, low-density Polyethylene, linear low density polyethylene and modified resin are constituted, and the modified resin includes silicone, polytetrafluoroethylene (PTFE), gas phase two Silica；The matter of ethylene-vinyl acetate copolymer, silicone, polytetrafluoroethylene (PTFE), fumed silica in first group of mixture Amount is than being (16~18): (0.9~1.1): (0.9~1.1): (0.9~1.1)；The poly- second of metallocene in second group of mixture Alkene, low density polyethylene (LDPE), linear low density polyethylene, silicone, polytetrafluoroethylene (PTFE), fumed silica mass ratio be (4.8~ 5.2): (4.8~5.2): (4.8~5.2): (0.9~1.1): (0.9~1.1): (0.9~1.1)；The corona layer, centre Layer, hot sealing layer Thickness ratio be (11~13): (12~14): (19~21).
The laminated polyester film, aluminized mylar layer, film layer Thickness ratio be 12:12:45.
Linear low density polyethylene and low density polyethylene (LDPE) mass ratio are 1:2 in the corona layer, low in the middle layer Density polyethylene and high density polyethylene (HDPE) mass ratio are 2:1；The corona layer, middle layer, hot sealing layer Thickness ratio be 12:13: 20。
Ethylene-vinyl acetate copolymer in first group of mixture, silicone, polytetrafluoroethylene (PTFE), fumed silica Mass ratio is 17:1:1:1.
It is metallocene PE in second group of mixture, low density polyethylene (LDPE), linear low density polyethylene, silicone, poly- Tetrafluoroethene, fumed silica mass ratio be 5:5:5:1:1:1.
The partial size of the polytetrafluoroethylene (PTFE) is 8 microns.
A kind of production technology of the not slime body composite package film, the processing including film layer are described poly- The processing of vinyl film layer includes material plasticizing extrusion operation, the material plasticizing of the corona layer squeeze out processing temperature be 170~ 180 DEG C, the material plasticizing of middle layer squeeze out that processing temperature is 160~170 DEG C, the material plasticizing of hot sealing layer squeezes out processing temperature Degree is 170~180 DEG C.
The beneficial effects of the present invention are:
(1) present invention by the film layer carry out structure improvement, especially to the hot sealing layer structure into Innovation of having gone adjusts, and constructs one with ultra-low surface energy and with the composite package film hot sealing layer of hydrophobic property, this is compound When being used for filling liquid, liquid does not adhere to packaging film on the heat-sealing bed boundary of composite package film, but in heat-sealing bed boundary It is upper quickly to form spherical beads, and heat-sealing bed boundary is neatly left under the effect of gravity.The interface have 150 degree with On contact angle, 10 degree of roll angles below.In addition, composite package film of the present invention can also be in lower heat-sealing temperature or higher Packaging speed when obtain suitable heat seal strength.
(2) present invention is by optimizing the proportion of each layer material, obtains performance more preferably not slime body composite package film.Than Such as, the control of the partial size of the polytetrafluoroethylene (PTFE) can make film form coarse interfacial effect, in conjunction with porous silica Air adsorption effect and the ultra-low surface energy effect of siloxanes, obtain the composite package film of not slime body jointly.
(3) laminated polyester film, aluminized mylar layer, film layer generally pass through dry type in the composite package film Combination process carries out compound.The manufacturing procedure of heretofore described film layer generally includes material process, material plasticizing Extrusion operation, inflation traction process, vane cooling process, herringbone clamping plate process, traction roller traction process, sided corona treatment process, Film take-up process.Wherein in material plasticizing extrusion operation, it is high that the material plasticizing of the corona layer squeezes out processing temperature selection Temperature, temperature are 170~180 DEG C, and corona layer easily carries out Corona Oxidation processing under the processing temperature, make corona layer it is described aluminize it is poly- Adhesive ability on ester film layer is stronger；The material plasticizing extrusion processing temperature of the middle layer is relatively lower, and selection 160~ 170 DEG C, composite package film can be made to obtain high-stiffness under the processing temperature；The material plasticizing of the hot sealing layer squeezes out processing temperature High temperature is selected, temperature is 170~180 DEG C, and chilling can reduce hot sealing layer crystallinity under the processing temperature, reduces temperature needed for heat-sealing Degree.
Specific embodiment
More specific detail is made to technical solution of the present invention below with reference to embodiment:
Embodiment 1
(1) processing of film layer:
Wherein in upper material process:
Corona layer material: mass ratio is 1:1.9 linear low density polyethylene and low density polyethylene (LDPE)；
Middle layer material: mass ratio is the low density polyethylene (LDPE) and high density polyethylene (HDPE) of 1.9:1；
Hot sealing layer material: mass ratio is ethylene-vinyl acetate copolymer, silicone, the polytetrafluoroethyl-ne of 16:0.9:1.1:0.9 Alkene, fumed silica；
The partial size of the polytetrafluoroethylene (PTFE) is 8 microns；
Wherein in material plasticizing extrusion operation:
The material plasticizing of the corona layer squeezes out processing temperature and squeezes out processing temperature for the material plasticizing of 170 DEG C, middle layer Degree is 160 DEG C, the material plasticizing of hot sealing layer extrusion processing temperature is 170 DEG C；
The corona layer, middle layer, hot sealing layer Thickness ratio be 11:12:19.
(2) laminated polyester film, aluminized mylar layer, film layer by dry type composite algorithm carry out it is compound and Thickness ratio is 12:12:45 between each layer.
Embodiment 2
(1) processing of film layer:
Wherein in upper material process:
Corona layer material: mass ratio is 1:2.1 linear low density polyethylene and low density polyethylene (LDPE)；
Middle layer material: mass ratio is the low density polyethylene (LDPE) and high density polyethylene (HDPE) of 2.1:1；
Hot sealing layer material: mass ratio is ethylene-vinyl acetate copolymer, silicone, the polytetrafluoroethyl-ne of 18:1.1:0.9:1.1 Alkene, fumed silica；
The partial size of the polytetrafluoroethylene (PTFE) is 8 microns；
Wherein in material plasticizing extrusion operation:
The material plasticizing of the corona layer squeezes out processing temperature and squeezes out processing temperature for the material plasticizing of 180 DEG C, middle layer Degree is 170 DEG C, the material plasticizing of hot sealing layer extrusion processing temperature is 180 DEG C；The corona layer, middle layer, hot sealing layer layer Thickness rate is 13:14:21.
(2) laminated polyester film, aluminized mylar layer, film layer by dry type composite algorithm carry out it is compound and Thickness ratio is 12:12:45 between each layer.
Embodiment 3
(1) processing of film layer:
Wherein in upper material process:
Corona layer material: mass ratio is 1:2 linear low density polyethylene and low density polyethylene (LDPE)；
Middle layer material: mass ratio is the low density polyethylene (LDPE) and high density polyethylene (HDPE) of 2:1；
Hot sealing layer material: mass ratio is ethylene-vinyl acetate copolymer, silicone, the polytetrafluoroethylene (PTFE), gas phase of 17:1:1:1 Silica；The partial size of the polytetrafluoroethylene (PTFE) is 8 microns；
Wherein in material plasticizing extrusion operation: it is 175 DEG C, middle layer that the material plasticizing of the corona layer, which squeezes out processing temperature, Material plasticizing squeeze out processing temperature be 165 DEG C, the material plasticizing of hot sealing layer squeeze out processing temperature be 175 DEG C；The electricity Dizzy layer, middle layer, hot sealing layer Thickness ratio be 12:13:20.
(2) laminated polyester film, aluminized mylar layer, film layer by dry type composite algorithm carry out it is compound and Thickness ratio is 12:12:45 between each layer.
Embodiment 4
(1) processing of film layer:
Wherein in upper material process:
Corona layer material: mass ratio is 1:2 linear low density polyethylene and low density polyethylene (LDPE)；
Middle layer material: mass ratio is the low density polyethylene (LDPE) and high density polyethylene (HDPE) of 2:1；
Hot sealing layer material: mass ratio is metallocene PE, low density polyethylene (LDPE), the linea low density of 5:5:5:1:1:1 Polyethylene, silicone, polytetrafluoroethylene (PTFE), fumed silica；
The partial size of the polytetrafluoroethylene (PTFE) is 8 microns；
Wherein in material plasticizing extrusion operation: it is 180 DEG C, middle layer that the material plasticizing of the corona layer, which squeezes out processing temperature, Material plasticizing squeeze out processing temperature be 170 DEG C, the material plasticizing of hot sealing layer squeeze out processing temperature be 180 DEG C；
The corona layer, middle layer, hot sealing layer Thickness ratio be 12:12:20.
(2) laminated polyester film, aluminized mylar layer, film layer by dry type composite algorithm carry out it is compound and Thickness ratio is 12:12:45 between each layer.
Embodiment 5
(1) processing of film layer:
Wherein in upper material process:
Corona layer material: mass ratio is 1:2 linear low density polyethylene and low density polyethylene (LDPE)；
Middle layer material: mass ratio is the low density polyethylene (LDPE) and high density polyethylene (HDPE) of 2:1；
Hot sealing layer material: mass ratio is metallocene PE, the low density polyethylene of 4.8:4.8:5.2:0.9:1.1:0.9 Alkene, linear low density polyethylene, silicone, polytetrafluoroethylene (PTFE), fumed silica；
The partial size of the polytetrafluoroethylene (PTFE) is 8 microns；
Wherein in material plasticizing extrusion operation: it is 180 DEG C, middle layer that the material plasticizing of the corona layer, which squeezes out processing temperature, Material plasticizing squeeze out processing temperature be 170 DEG C, the material plasticizing of hot sealing layer squeeze out processing temperature be 180 DEG C；
The corona layer, middle layer, hot sealing layer Thickness ratio be 12:12:20.
(2) laminated polyester film, aluminized mylar layer, film layer by dry type composite algorithm carry out it is compound and Thickness ratio is 12:12:45 between each layer.
Embodiment 6
(1) processing of film layer:
Wherein in upper material process:
Corona layer material: mass ratio is 1:2 linear low density polyethylene and low density polyethylene (LDPE)；
Middle layer material: mass ratio is the low density polyethylene (LDPE) and high density polyethylene (HDPE) of 2:1；
Hot sealing layer material: mass ratio is metallocene PE, the low density polyethylene of 5.2:5.2:4.8:1.1:0.9:1.1 Alkene, linear low density polyethylene, silicone, polytetrafluoroethylene (PTFE), fumed silica；
The partial size of the polytetrafluoroethylene (PTFE) is 8 microns；
Wherein in material plasticizing extrusion operation: it is 180 DEG C, middle layer that the material plasticizing of the corona layer, which squeezes out processing temperature, Material plasticizing squeeze out processing temperature be 170 DEG C, the material plasticizing of hot sealing layer squeeze out processing temperature be 180 DEG C；
The corona layer, middle layer, hot sealing layer Thickness ratio be 12:12:20.
(2) laminated polyester film, aluminized mylar layer, film layer by dry type composite algorithm carry out it is compound and Thickness ratio is 12:12:45 between each layer.
By characteristic such as the following table 1 of proportion in above embodiments and the composite package film that produces of mode not adhering liquid It is shown:
From upper 1 content of table: composite package film of the present invention has the characteristic of good not adhering liquid, can answer extensively For in the packaging of liquid contents.
Composite package film of the present invention seals the heat seal strength (unit: N/ of 1s acquisition under 180kpa difference heat-sealing temperature Result 15mm) being compared with traditional packing film is as shown in table 2 below:
The Standard General of packaging film heat seal strength requires to be greater than 25N/15mm, according to upper 2 content of table: the present invention is compound Packaging film can be obtained suitable heat seal strength under lower heat-sealing temperature, and the standard for meeting packaging film heat seal strength is wanted It asks.

Claims (7)

1. a kind of not slime body composite package film, it is characterised in that: including successively compound laminated polyester film, aluminized mylar Layer, film layer；The film layer includes corona layer, middle layer, hot sealing layer, and the corona layer includes mass ratio For 1:(1.9~2.1) linear low density polyethylene and low density polyethylene (LDPE), the middle layer include mass ratio be (1.9~ 2.1): 1 low density polyethylene (LDPE) and high density polyethylene (HDPE), the hot sealing layer include first group of mixture or second group of mixture； First group of mixture is made of ethylene-vinyl acetate copolymer and modified resin, and second group of mixture is by metallocene Polyethylene, low density polyethylene (LDPE), linear low density polyethylene and modified resin are constituted, and the modified resin includes silicone, poly- four Vinyl fluoride, fumed silica；Ethylene-vinyl acetate copolymer, silicone, polytetrafluoroethylene (PTFE), gas in first group of mixture The mass ratio of aerosil is (16~18): (0.9~1.1): (0.9~1.1): (0.9~1.1)；Second group of mixing Metallocene PE in material, low density polyethylene (LDPE), linear low density polyethylene, silicone, polytetrafluoroethylene (PTFE), fumed silica Mass ratio is (4.8~5.2): (4.8~5.2): (4.8~5.2): (0.9~1.1): (0.9~1.1): (0.9~1.1)；Institute State corona layer, middle layer, hot sealing layer Thickness ratio be (11~13): (12~14): (19~21).
2. not slime body composite package film as described in claim 1, it is characterised in that: the laminated polyester film, aluminum polyester Film layer, film layer Thickness ratio be 12:12:45.
3. not slime body composite package film as described in claim 1, it is characterised in that: linea low density is poly- in the corona layer Ethylene and low density polyethylene (LDPE) mass ratio are 1:2, and low density polyethylene (LDPE) is with high density polyethylene (HDPE) mass ratio in the middle layer 2:1；The corona layer, middle layer, hot sealing layer Thickness ratio be 12:13:20.
4. not slime body composite package film as described in claim 1, it is characterised in that: ethylene-in first group of mixture Acetate ethylene copolymer, silicone, polytetrafluoroethylene (PTFE), fumed silica mass ratio be 17:1:1:1.
5. not slime body composite package film as described in claim 1, it is characterised in that: metallocene in second group of mixture Polyethylene, low density polyethylene (LDPE), linear low density polyethylene, silicone, polytetrafluoroethylene (PTFE), fumed silica mass ratio be 5: 5:5:1:1:1。
6. not slime body composite package film as described in claim 1, it is characterised in that: the partial size of the polytetrafluoroethylene (PTFE) is 8 Micron.
7. a kind of production technology of not slime body composite package film as claimed in any one of claims 1 to 6, including polyethylene are thin The processing of film layer, the processing of the film layer include material plasticizing extrusion operation, it is characterised in that: the corona layer Material plasticizing squeeze out processing temperature be 170~180 DEG C, the material plasticizing of middle layer squeeze out processing temperature be 160~170 DEG C, It is 170~180 DEG C that the material plasticizing of hot sealing layer, which squeezes out processing temperature,.
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