CN106081343B - A kind of tasteless environmentally friendly potato chips packaging membrane preparation method - Google Patents

A kind of tasteless environmentally friendly potato chips packaging membrane preparation method Download PDF

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Publication number
CN106081343B
CN106081343B CN201610442454.3A CN201610442454A CN106081343B CN 106081343 B CN106081343 B CN 106081343B CN 201610442454 A CN201610442454 A CN 201610442454A CN 106081343 B CN106081343 B CN 106081343B
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layers
packaging
environmentally friendly
hot sealing
roll
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CN106081343A (en
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李志明
李志勇
王媛
潘宣洲
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Guangdong baojiali New Material Co.,Ltd.
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Ningbo Jiangdong Jinghaozheng Mechanical Equipment Co Ltd
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    • 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
    • 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
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • 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
    • 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
    • B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/08—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the cooling method
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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 more than three carbon atoms
    • C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/54—Yield strength; Tensile strength
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Wrappers (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention belongs to packing film field, and in particular to a kind of tasteless environmentally friendly potato chips packaging membrane preparation method.Packaging film structure of the present invention is：The anti-PE40 of BOPP19/PE12/PETG12/, the present invention obtains multilayer packaging film from extrusion composite dry composite algorithm, it is possible to reduce the use of adhesive, use Aqueous Polyurethane Adhesives simultaneously, the discharge of VOC in the harm of organic solvent, reduction production process is reduced, with environment protecting.The present invention adds a certain proportion of metallocene PE in anti-PE40 hot sealing layers, with the pollution that polyethylene smell itself is brought to food is reduced, while the intensity and reduction heat-sealing temperature of hot sealing layer can be improved.

Description

A kind of tasteless environmentally friendly potato chips packaging membrane preparation method
Technical field
The present invention relates to packing film field, and in particular to a kind of tasteless environmentally friendly potato chips packaging membrane preparation method.
Background technology
As people increasingly increase the taste attention degree of food quality, particularly product, China is for food quality Requirement it is also increasingly stricter, this, which is also touched, makes requirement of the food enterprise to food packaging industry be even more to keep on improving.It is especially soft Packaging industry, due to many times only taking into account combination in conventional formulation and copying the structure of like product, causes current production There are many potential food quality hidden danger in product packaging.This just brings many potential to packaging manufacturer and goods producer Risk.So packing the task of top priority that exploitation is this problem of solution suitable for product special flavour.And the packaging material and low of environmental protection The packaging that the technological design of VOC emission is produced also increasingly is favored by food enterprise and consumer.In recent years, stop Not busy food is increasingly becoming the new consumption favourite of many people, wherein potato chips with the delicious characteristic of its delicious and crisp in occupation of the of leisure food One armchair, prospect for sales is very optimistic.Study a kind of tasteless, environmentally friendly potato chips bag membrane very necessary.
Utility model CN203402500U discloses a kind of solvent-free MULTILAYER COMPOSITE food package film and packaging bag, the bag Dress film and packaging bag are to pass sequentially through 100% by polyester film top layer, polyester film middle level and polyethylene film heat-sealing bottom Solid solventless type adhesive bonding is a composite construction being monolithically fabricated.
Patent of invention CN104924716A disclose a kind of high-temperature resistant water boil type multi-layer compound package bag combination process and Composite construction, it is compound by water-soluble glue between pet layer and CMPET layers, pass through nothing between LDPE layer at described VMPET layers Solvent adhesive is combined.The combination process and composite construction of type multi-layer compound package bag are boiled by using this high-temperature resistant water, it is produced Cost is relatively low, and the feature of environmental protection is higher, and aesthetic property is higher, while meeting the requirement that high-temperature resistant water is boiled.
Above-mentioned patent is to realize environmental protection, solvent-free problem by being combined water-soluble glue, solvent-free glue between film. The present invention is improved by structural adjustment and method, proposes that one kind extrudes compound-dry type composite algorithm and prepares tasteless environmentally friendly potato chips packaging The method of film.
The content of the invention
Tasteless environmentally friendly potato chips packaging film prepared by the present invention, the packaging film structure is：BOPP19/PE12/PETG12/ prevents PE40, wherein, numerical value represents the thickness of film layer, unit：Micron, for example, BOPP19 represents that BOPP thickness degree is 19 microns.
The present invention provides a kind of method for preparing tasteless environmentally friendly potato chips packaging film, it is characterised in that comprise the following steps：
1）, BOPP19/PE12/PETG12 composite membranes preparation：The material for preparing BOPP layers, PE layers, PETG layers is distinguished In 3 feed leakage buckets for putting into co-extrusion machine, melt and extruded in same mould, form the composite membrane of BOPP/PE/PETG structures；
2）, anti-PE40 hot sealing layers preparation：The material for preparing anti-PE40 hot sealing layers is added in the feed leakage bucket of extruder, melted Melt extrusion, form anti-PE40 hot sealing layers；
3）, dry type be combined：By step 1）In obtained composite membrane unreel base material for first, then make first to unreel base material and exist Under 80N tension, enter coating system to parallel flattening after laterally correction, applicator roll is subject to by dandy roll 0.30MPa pressure so that water-based polyurethane adhesive is uniformly transferred to first and unreeled on the surface of PETG layers of base material, its In, the spread of water-based polyurethane adhesive is 1.25g/m2；Second unreels tension of the anti-PE40 hot sealing layers of base material in 35N Under parallel flattening, the PETG for unreeling base material by doubling roller and composite steel roll with 0.45MPa pressure and first presses acquisition layer by layer The anti-PE40 composite membranes of BOPP19/PE12/PETG12/, by chill roll, rolling after cooling.In the process, oven temperature is 82 DEG C, doubling roller temperature control is 45 DEG C.
4）, curing：The anti-PE40 of BOPP19/PE12/PETG12/ are combined film roll feeding aging machine curing, curing temperature 45- 55 DEG C, curing time 40-70h;
5）, printing：Above-mentioned compound film roll is placed on the unwinding rack of printing machine, and pours into ink fountain deployed oil Ink, regulates retractable volume tension force, starts printing, and after 80 DEG C of -110 DEG C of high temperature drying, winding obtains printing volume.
6）, examine qualified, packaging and storage.
On one side, add a certain amount of metallocene PE to improve its heat sealability in anti-PE40 hot sealing layers of the invention Can, reason be metallocene PE compared with conventional linear low density polyethylene (LDPE), narrow molecular weight distribution, molecular entanglement uniformity Good, heat seal strength is of a relatively high.Further, since the length of comonomer side chain is different, forms the tie molecule between crystal layer and tangle Ability is different, and selects the side chain of comonomer longer, and heat seal strength is bigger.Meanwhile, metallocene linear polyethylene and routine Polyethylene resin film is compared, with preferable odor profiles and transparency, and selection addition metallocene linear polyethylene is used as hot sealing layer It ensure that the smell of product is unaffected.The anti-PE40 hot sealing layers composition：LLDPE is 50-90wt%, cyclopentadienyl Metal polyethylene is 10-50wt%, and oleamide is 0.02-0.05 wt%, and silica is 0.02-0.05 wt%, antioxidant For 0.01-0.03 wt%, the component sum is 100%.The antioxidant is antioxidant 168, antioxidant 1010, resisted One kind in oxidant 1024 or two kinds.
Metallocene PE preferable weight-average molecular weight of the present invention is distributed 2-4, and octene content 10-20mol%, melt flows refer to Number（MFI）For 0.5-2g/10min, test condition is 2.16kg load, 190 DEG C of test temperature.Such as Tao Shi productions Elite 5100G、Elite 5110G。
Present invention aims at provide a kind of by the anti-PE40 packaging films of BOPP19/PE12/PETG12/ to be used for tasteless environmentally friendly potato The purposes of the preparation of piece packaging bag.
The invention has the advantages that：
Contain BOPP, PETG film in packaging film structure of the present invention, result in good tensile strength, impact strength and tough Property, and the transparency is good, meanwhile, PETG is also a kind of good environment-friendly materials in itself.
The present invention is combined-dry type composite algorithm acquisition multilayer packaging film from extrusion, it is possible to reduce the use of adhesive, simultaneously Using water-based polyurethane adhesive, the discharge of VOC in the harm of organic solvent, reduction production process is reduced, with environment protecting.
The present invention adds a certain proportion of metallocene PE in anti-PE40 hot sealing layers, with reducing polyethylene gas in itself The pollution that taste is brought to food, while the intensity and reduction heat-sealing temperature of hot sealing layer can be improved.
Embodiment
Embodiment 1
1）, BOPP19/PE12/PETG12 composite membranes preparation：The material for preparing BOPP layers, PE layers, PETG layers is distinguished In 3 feed leakage buckets for putting into co-extrusion machine, melt and extruded in same mould, form the composite membrane of BOPP/PE/PETG structures；
2）, anti-PE40 hot sealing layers preparation：The material for preparing anti-PE40 hot sealing layers is added in the feed leakage bucket of extruder, melted Melt extrusion, form anti-PE40 hot sealing layers；The material of the anti-PE40 hot sealing layers is constituted：LLDPE is 50wt%, Metallocene PE Elite 5100G are 49wt%, oleamide is 0.04 wt%, and silica is 0.05 wt%, anti-oxidant Agent 168 is 0.01 wt%；
3）, dry type be combined：By step 1）In obtained composite membrane unreel base material for first, then make first to unreel base material and exist Under 80N tension, enter coating system to parallel flattening after laterally correction, applicator roll is subject to by dandy roll 0.30MPa pressure so that water-based polyurethane adhesive is uniformly transferred to first and unreeled on the surface of PETG layers of base material, its In, the spread of water-based polyurethane adhesive is 1.25g/m2；Second unreels tension of the anti-PE40 hot sealing layers of base material in 35N Under parallel flattening, the PETG for unreeling base material by doubling roller and composite steel roll with 0.45MPa pressure and first presses acquisition layer by layer The anti-PE40 composite membranes of BOPP19/PE12/PETG12/, by chill roll, rolling after cooling.In the process, oven temperature is 82 DEG C, doubling roller temperature control is 45 DEG C；
4）, curing：The anti-PE40 of BOPP19/PE12/PETG12/ are combined film roll feeding aging machine curing, curing temperature 45 DEG C, curing time 60h;
5）, printing：Above-mentioned compound film roll is placed on the unwinding rack of printing machine, and pours into ink fountain deployed oil Ink, regulates retractable volume tension force, starts printing, and after 110 DEG C of high temperature drying, winding obtains printing volume.
6）, examine qualified, packaging and storage.
Embodiment 2
1）, BOPP19/PE12/PETG12 composite membranes preparation：The material for preparing BOPP layers, PE layers, PETG layers is distinguished In 3 feed leakage buckets for putting into co-extrusion machine, melt and extruded in same mould, form the composite membrane of BOPP/PE/PETG structures；
2）, anti-PE40 hot sealing layers preparation：The material for preparing anti-PE40 hot sealing layers is added in the feed leakage bucket of extruder, melted Melt extrusion, form anti-PE40 hot sealing layers；The material of the anti-PE40 hot sealing layers is constituted：LLDPE is 60wt%, Metallocene PE Elite 5110G are 39wt%, oleamide is 0.03 wt%, and silica is 0.04 wt%, anti-oxidant Agent 168 is 0.03 wt%；
3）, dry type be combined：By step 1）In obtained composite membrane unreel base material for first, then make first to unreel base material and exist Under 80N tension, enter coating system to parallel flattening after laterally correction, applicator roll is subject to by dandy roll 0.30MPa pressure so that water-based polyurethane adhesive is uniformly transferred to first and unreeled on the surface of PETG layers of base material, its In, the spread of water-based polyurethane adhesive is 1.25g/m2；Second unreels tension of the anti-PE40 hot sealing layers of base material in 35N Under parallel flattening, the PETG for unreeling base material by doubling roller and composite steel roll with 0.45MPa pressure and first presses acquisition layer by layer The anti-PE40 composite membranes of BOPP19/PE12/PETG12/, by chill roll, rolling after cooling.In the process, oven temperature is 82 DEG C, doubling roller temperature control is 45 DEG C.
4）, curing：The anti-PE40 of BOPP19/PE12/PETG12/ are combined film roll feeding aging machine curing, curing temperature 55 DEG C, curing time 50h;
5）, printing：Above-mentioned compound film roll is placed on the unwinding rack of printing machine, and pours into ink fountain deployed oil Ink, regulates retractable volume tension force, starts printing, and after 100 DEG C of high temperature drying, winding obtains printing volume.
6）, examine qualified, packaging and storage.
Packaging film is obtained by embodiment of the present invention 1-2 and meets China's composite membrane sanitary standard, n-hexane evaporation residue< 30mg/L, meanwhile, heat-sealing temperature<130 DEG C, the horizontal TD of tearing intensity>40N/15mm, tearing intensity indulges MD>45N/15mm, packaging film Free from extraneous odour, foreign.
Above-described embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention Protection domain, within the spirit and principles of the invention, any modifications, equivalent substitutions and improvements done etc. all should be included Within protection scope of the present invention.

Claims (4)

1. a kind of tasteless environmentally friendly potato chips packaging membrane preparation method, it is characterised in that comprise the following steps：
1）, BOPP19/PE12/PETG12 composite membranes preparation：The material for preparing BOPP layers, PE layers, PETG layers is put into respectively In 3 feed leakage buckets of co-extrusion machine, melt and extruded in same mould, form the composite membrane of BOPP/PE/PETG structures；
2）, anti-PE40 hot sealing layers preparation：The material for preparing anti-PE40 hot sealing layers is added in the feed leakage bucket of extruder, melting is squeezed Go out, form anti-PE40 hot sealing layers；
3）, dry type be combined：By step 1）In obtained composite membrane unreel base material for first, then make first to unreel base material in 80N Tension under, by laterally correction after it is parallel flattening enter coating system, applicator roll is subject to 0.30MPa by dandy roll Pressure so that water-based polyurethane adhesive is uniformly transferred to first and unreeled on the surface of PETG layers of base material, wherein, it is aqueous The spread of polyurethane adhesive is 1.25g/m2；Second to unreel the anti-PE40 hot sealing layers of base material parallel under 35N tension Flattening, the PETG for unreeling base material by doubling roller and composite steel roll with 0.45MPa pressure and first presses acquisition BOPP19/ layer by layer The anti-PE40 composite membranes of PE12/PETG12/, by chill roll, rolling after cooling；In the process, oven temperature is 82 DEG C, laminating Roll temperature control is 45 DEG C；
4）, curing：The anti-PE40 of BOPP19/PE12/PETG12/ are combined film roll feeding aging machine curing, curing temperature 45-55 DEG C, curing time 40-70h；
5）, printing：Above-mentioned compound film roll is placed on the unwinding rack of printing machine, and deployed ink is poured into ink fountain, is adjusted Retractable volume tension force has been saved, has started printing, after 80 DEG C of -110 DEG C of high temperature drying, winding obtains printing volume；
6）, examine qualified, packaging and storage；
The packaging film structure is：The anti-PE40 of BOPP19/PE12/PETG12/, wherein, numerical value represents the thickness of film layer, unit： Micron.
2. tasteless environmentally friendly potato chips packaging membrane preparation method according to claim 1, it is characterised in that：The anti-PE40 heat-sealings Layer composition：LLDPE is 50-90wt%, and metallocene PE is 10-50wt%, and oleamide is 0.02-0.05 Wt%, silica is 0.02-0.05 wt%, and antioxidant is 0.01-0.03 wt%, and said components sum is 100%；It is described anti- Oxidant is antioxidant 168, antioxidant 1010, one kind in antioxidant 1024 or two kinds.
3. tasteless environmentally friendly potato chips packaging membrane preparation method according to claim 2, it is characterised in that：Metallocene PE weight Average molecular weight is distributed 2-4, octene content 10-20mol%, melt flow index（MFI）For 0.5-2g/10min, test condition is 2.16kg load, 190 DEG C of test temperature.
4. a kind of packaging film for preparing claim 1-3 either method is used for the use of the preparation of tasteless environmentally friendly potato chips packaging bag On the way.
CN201610442454.3A 2016-06-20 2016-06-20 A kind of tasteless environmentally friendly potato chips packaging membrane preparation method Active CN106081343B (en)

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CN113830425B (en) * 2021-06-29 2023-08-04 安姆科(惠州)新材料科技有限公司 Small-capacity spouted liquid self-standing bag and preparation method thereof

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CH686881A5 (en) * 1993-12-17 1996-07-31 Bieffe Medital Sa Layered coextruded film for containers of parenteral solutions.
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CN105667011A (en) * 2016-03-02 2016-06-15 江阴申隆包装材料有限公司 Composite membrane having stable friction coefficient and capable of being spurted with codes and preparation method of composite membrane

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