CN109263161A - A kind of high-barrier imitates paper liquid packaging film and preparation method thereof - Google Patents
A kind of high-barrier imitates paper liquid packaging film and preparation method thereof Download PDFInfo
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- CN109263161A CN109263161A CN201810912806.6A CN201810912806A CN109263161A CN 109263161 A CN109263161 A CN 109263161A CN 201810912806 A CN201810912806 A CN 201810912806A CN 109263161 A CN109263161 A CN 109263161A
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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
- 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
-
- 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
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
- B32B38/164—Drying
-
- 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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D129/00—Coating compositions based on 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 an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Coating compositions based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Coating compositions based on derivatives of such polymers
- C09D129/02—Homopolymers or copolymers of unsaturated alcohols
- C09D129/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- 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
- B32B37/24—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 not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
- B32B2037/243—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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
- B32B38/164—Drying
- B32B2038/168—Removing solvent
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
-
- 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
- B32B2307/70—Other properties
- B32B2307/71—Resistive to light or to UV
-
- 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
- B32B2553/00—Packaging equipment or accessories not otherwise provided for
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0881—Titanium
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Wrappers (AREA)
Abstract
The invention discloses a kind of high-barriers to imitate paper liquid packaging film, including imitative paper outer membrane and transparent inner layer film, and imitative paper outer membrane and transparent inner layer film are combined with each other by adhesive；The outer layer of the imitative paper outer membrane is coated with printing layer, and the internal layer of imitative paper outer membrane is coated with PVA aqueous coating fluid and is formed by high-obstruction.The present invention is arranged on imitative paper outer membrane is formed by high-obstruction by PVA aqueous coating fluid, so that the whole specific barrier property of superelevation, it can play the role of shading and resisting ultraviolet radiation, aluminium coated can also be set in the outer surface of transparent inner membrance simultaneously, further strengthen whole barrier property, the shelf-life for substantially prolonging content is very suitable for the packaging of the liquid form products such as milk, fruit juice, flavouring, has a vast market foreground.
Description
Technical field
The present invention relates to a kind of packaging film, specifically a kind of high-barrier imitates paper liquid packaging film.
Background technique
Food packaging is the component part of food goods.Food packaging and food package box protect food, make food from
It sets up a factory into the process of circulation in consumer's hand, prevents biology, chemical, physics foeign element damage, it can also
To there is the function of keeping food stabilised quality itself, its instant food is eaten, and is that performance food appearance, attraction are consumed first
Image, with the value other than material cost.
Certain food packaging is most important or improves edible safety, this is embodied in packaging and food is protected
In the extension of matter phase.
Existing food liquid, the packaging film as used in milk, beverage, flavouring have the defects that barrier property is poor mostly,
The shelf-life that liquid form product can not be extended well, it is poor to use safety.
Summary of the invention
The purpose of the present invention is to provide a kind of high-barriers to imitate paper liquid packaging film and preparation method thereof, to solve above-mentioned back
The problem of being proposed in scape technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of imitative paper liquid packaging film of high-barrier, including imitative paper outer membrane and transparent inner layer film, imitate paper outer membrane and transparent inner layer
Film is combined with each other by adhesive；The outer layer of the imitative paper outer membrane is coated with printing layer, and the internal layer of imitative paper outer membrane is coated with
PVA aqueous coating fluid is formed by high-obstruction.
As a further solution of the present invention: the PVA aqueous coating fluid includes the following raw material according to parts by weight: poly- second
32-47 parts of enol, 21-34 parts of titanium magnesium powder, 3-7 parts of crosslinking agent, 1-4 parts of lubricant.
As a further solution of the present invention: the PVA aqueous coating fluid includes the following raw material according to parts by weight: poly- second
40 parts of enol, 28 parts of titanium magnesium powder, 5 parts of crosslinking agent, 3 parts of lubricant.
As a further solution of the present invention: the crosslinking agent is isocyanate compound, epoxide, aziridine
Close one of object.
As a further solution of the present invention: the lubricant is mixed by paraffin and polyethylene wax.
As a further solution of the present invention: the lubricant mixed by paraffin and polyethylene wax according to weight ratio 1:3 and
At.
As a further solution of the present invention: the outer surface of the transparent inner layer film is coated with aluminium coated.
As a further solution of the present invention: the aluminium coated is process using vacuum aluminum-coated method.
The high-barrier imitates the preparation method of paper liquid packaging film, comprising the following steps:
1) imitative paper outer membrane is made using co-extrusion film blowing machine, controls thickness at 50-120 μm；
2) transparent inner layer film is made using co-extrusion film blowing machine；
3) PVA aqueous coating fluid is coated in the internal layer of imitative paper outer membrane, forms high-obstruction；
4) it is aluminized using vacuum aluminum-coated method in the outer surface of transparent inner layer film or transparent inner layer film is not processed；
5) aqueous binder is coated on high-obstruction, is compounded in imitative paper outer membrane and transparent inner layer film using dry compound machine
Together, paper liquid packaging film is imitated up to the high-barrier after cured.
Compared with prior art, the beneficial effects of the present invention are:
The present invention is arranged on imitative paper outer membrane is formed by high-obstruction by PVA aqueous coating fluid, so that whole specific super
High barrier property can play the role of shading and resisting ultraviolet radiation, while can also set in the outer surface of transparent inner membrance
Aluminium coated is set, whole barrier property is further strengthened, substantially prolongs the shelf-life of content, is very suitable for milk, fruit
The packaging of the liquid form products such as juice, flavouring, has a vast market foreground.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that high-barrier imitates paper liquid packaging film embodiment 1-3.
Fig. 2 is the structural schematic diagram that high-barrier imitates paper liquid packaging film embodiment 4-6.
In figure: 1- imitates paper outer membrane, 2- transparent inner layer film, 3- adhesive, 4- printing layer, 5- high-obstruction, 6- aluminium coated.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
In the embodiment of the present invention, a kind of imitative paper liquid packaging film of high-barrier, including including imitating paper outer membrane 1 and transparent inner layer film 2,
Imitative paper outer membrane 1 and transparent inner layer film 2 are combined with each other by adhesive 3；The outer layer of the imitative paper outer membrane is coated with printing layer
4, the internal layer of imitative paper outer membrane is coated with PVA aqueous coating fluid and is formed by high-obstruction 5.
The PVA aqueous coating fluid includes the following raw material according to parts by weight: 32 parts of polyvinyl alcohol, is handed over 21 parts of titanium magnesium powder
Join 3 parts of agent, 1 part of lubricant；The crosslinking agent is isocyanate compound；The lubricant is by paraffin and polyethylene wax according to weight
Amount is mixed than 1:3；
Further, the outer surface of the transparent inner layer film 2 is also coated with aluminium coated 6, and the aluminium coated 6 is added using vacuum aluminum-coated method
Work forms.
High-barrier described in the present embodiment imitates the preparation method of paper liquid packaging film, comprising the following steps:
1) imitative paper outer membrane is made using co-extrusion film blowing machine, controls thickness at 50 μm；
2) transparent inner layer film is made using co-extrusion film blowing machine；
3) PVA aqueous coating fluid is coated in the internal layer of imitative paper outer membrane, forms high-obstruction；
4) it is aluminized using vacuum aluminum-coated method in the outer surface of transparent inner layer film；
5) aqueous binder is coated on high-obstruction, is compounded in imitative paper outer membrane and transparent inner layer film using dry compound machine
Together, paper liquid packaging is imitated up to the high-barrier after cured.
Embodiment 2
In the embodiment of the present invention, a kind of imitative paper liquid packaging film of high-barrier, including including imitating paper outer membrane 1 and transparent inner layer film 2,
Imitative paper outer membrane 1 and transparent inner layer film 2 are combined with each other by adhesive 3；The outer layer of the imitative paper outer membrane is coated with printing layer
4, the internal layer of imitative paper outer membrane is coated with PVA aqueous coating fluid and is formed by high-obstruction 5.
The PVA aqueous coating fluid includes the following raw material according to parts by weight: 40 parts of polyvinyl alcohol, is handed over 28 parts of titanium magnesium powder
Join 5 parts of agent, 3 parts of lubricant；The crosslinking agent is epoxide；The lubricant is by paraffin and polyethylene wax according to weight ratio
1:3 is mixed；
Further, the outer surface of the transparent inner layer film 2 is also coated with aluminium coated 6, and the aluminium coated 6 is added using vacuum aluminum-coated method
Work forms.
High-barrier described in the present embodiment imitates the preparation method of paper liquid packaging film, comprising the following steps:
1) imitative paper outer membrane is made using co-extrusion film blowing machine, controls thickness at 90 μm；
2) transparent inner layer film is made using co-extrusion film blowing machine；
3) PVA aqueous coating fluid is coated in the internal layer of imitative paper outer membrane, forms high-obstruction；
4) it is aluminized using vacuum aluminum-coated method in the outer surface of transparent inner layer film；
5) aqueous binder is coated on high-obstruction, is compounded in imitative paper outer membrane and transparent inner layer film using dry compound machine
Together, paper liquid packaging is imitated up to the high-barrier after cured.
Embodiment 3
In the embodiment of the present invention, a kind of imitative paper liquid packaging film of high-barrier, including including imitating paper outer membrane 1 and transparent inner layer film 2,
Imitative paper outer membrane 1 and transparent inner layer film 2 are combined with each other by adhesive 3；The outer layer of the imitative paper outer membrane is coated with printing layer
4, the internal layer of imitative paper outer membrane is coated with PVA aqueous coating fluid and is formed by high-obstruction 5.
The PVA aqueous coating fluid includes the following raw material according to parts by weight: 47 parts of polyvinyl alcohol, is handed over 34 parts of titanium magnesium powder
Join 7 parts of agent, 4 parts of lubricant；The crosslinking agent is epoxide；The lubricant is by paraffin and polyethylene wax according to weight ratio
1:3 is mixed；
Further, the outer surface of the transparent inner layer film 2 is also coated with aluminium coated 6, and the aluminium coated 6 is added using vacuum aluminum-coated method
Work forms.
High-barrier described in the present embodiment imitates the preparation method of paper liquid packaging film, comprising the following steps:
1) imitative paper outer membrane is made using co-extrusion film blowing machine, controls thickness at 120 μm；
2) transparent inner layer film is made using co-extrusion film blowing machine；
3) PVA aqueous coating fluid is coated in the internal layer of imitative paper outer membrane, forms high-obstruction；
4) it is aluminized using vacuum aluminum-coated method in the outer surface of transparent inner layer film；
5) aqueous binder is coated on high-obstruction, is compounded in imitative paper outer membrane and transparent inner layer film using dry compound machine
Together, paper liquid packaging is imitated up to the high-barrier after cured.
Embodiment 4
In the embodiment of the present invention, a kind of imitative paper liquid packaging film of high-barrier, including including imitating paper outer membrane 1 and transparent inner layer film 2,
Imitative paper outer membrane 1 and transparent inner layer film 2 are combined with each other by adhesive 3；The outer layer of the imitative paper outer membrane is coated with printing layer
4, the internal layer of imitative paper outer membrane is coated with PVA aqueous coating fluid and is formed by high-obstruction 5.
The PVA aqueous coating fluid includes the following raw material according to parts by weight: 32 parts of polyvinyl alcohol, is handed over 21 parts of titanium magnesium powder
Join 3 parts of agent, 1 part of lubricant；The crosslinking agent is isocyanate compound；The lubricant is by paraffin and polyethylene wax according to weight
Amount is mixed than 1:3.
High-barrier described in the present embodiment imitates the preparation method of paper liquid packaging film, comprising the following steps:
1) imitative paper outer membrane is made using co-extrusion film blowing machine, controls thickness at 50 μm；
2) transparent inner layer film is made using co-extrusion film blowing machine；
3) PVA aqueous coating fluid is coated in the internal layer of imitative paper outer membrane, forms high-obstruction；
4) aqueous binder is coated on high-obstruction, is compounded in imitative paper outer membrane and transparent inner layer film using dry compound machine
Together, paper liquid packaging is imitated up to the high-barrier after cured.
Embodiment 5
In the embodiment of the present invention, a kind of imitative paper liquid packaging film of high-barrier, including including imitating paper outer membrane 1 and transparent inner layer film 2,
Imitative paper outer membrane 1 and transparent inner layer film 2 are combined with each other by adhesive 3；The outer layer of the imitative paper outer membrane is coated with printing layer
4, the internal layer of imitative paper outer membrane is coated with PVA aqueous coating fluid and is formed by high-obstruction 5.
The PVA aqueous coating fluid includes the following raw material according to parts by weight: 40 parts of polyvinyl alcohol, is handed over 28 parts of titanium magnesium powder
Join 5 parts of agent, 3 parts of lubricant；The crosslinking agent is isocyanate compound；The lubricant is by paraffin and polyethylene wax according to weight
Amount is mixed than 1:3.
High-barrier described in the present embodiment imitates the preparation method of paper liquid packaging film, comprising the following steps:
1) imitative paper outer membrane is made using co-extrusion film blowing machine, controls thickness at 90 μm；
2) transparent inner layer film is made using co-extrusion film blowing machine；
3) PVA aqueous coating fluid is coated in the internal layer of imitative paper outer membrane, forms high-obstruction；
4) aqueous binder is coated on high-obstruction, is compounded in imitative paper outer membrane and transparent inner layer film using dry compound machine
Together, paper liquid packaging is imitated up to the high-barrier after cured.
Embodiment 6
In the embodiment of the present invention, a kind of imitative paper liquid packaging film of high-barrier, including including imitating paper outer membrane 1 and transparent inner layer film 2,
Imitative paper outer membrane 1 and transparent inner layer film 2 are combined with each other by adhesive 3；The outer layer of the imitative paper outer membrane is coated with printing layer
4, the internal layer of imitative paper outer membrane is coated with PVA aqueous coating fluid and is formed by high-obstruction 5.
The PVA aqueous coating fluid includes the following raw material according to parts by weight: 47 parts of polyvinyl alcohol, is handed over 34 parts of titanium magnesium powder
Join 7 parts of agent, 4 parts of lubricant；The crosslinking agent is isocyanate compound；The lubricant is by paraffin and polyethylene wax according to weight
Amount is mixed than 1:3；
High-barrier described in the present embodiment imitates the preparation method of paper liquid packaging film, comprising the following steps:
1) imitative paper outer membrane is made using co-extrusion film blowing machine, controls thickness at 50-120 μm；
2) transparent inner layer film is made using co-extrusion film blowing machine；
3) PVA aqueous coating fluid is coated in the internal layer of imitative paper outer membrane, forms high-obstruction；
4) aqueous binder is coated on high-obstruction, is compounded in imitative paper outer membrane and transparent inner layer film using dry compound machine
Together, paper liquid packaging is imitated up to the high-barrier after cured.
The working principle of the invention is:
The present invention is arranged on imitative paper outer membrane is formed by high-obstruction by PVA aqueous coating fluid, so that whole specific super
High barrier property can play the role of shading and resisting ultraviolet radiation, while can also set in the outer surface of transparent inner membrance
Aluminium coated is set, whole barrier property is further strengthened, substantially prolongs the shelf-life of content, is very suitable for milk, fruit
The packaging of the liquid form products such as juice, flavouring, has a vast market foreground.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (9)
1. a kind of high-barrier imitates paper liquid packaging film, including imitative paper outer membrane and transparent inner layer film, paper outer membrane and transparent interior is imitated
Tunic is combined with each other by adhesive；It is characterized in that, the outer layer of the imitative paper outer membrane is coated with printing layer, paper outer membrane is imitated
Internal layer be coated with PVA aqueous coating fluid be formed by high-obstruction.
2. high-barrier according to claim 1 imitates paper liquid packaging film, which is characterized in that the aqueous coating of PVA
Liquid includes the following raw material according to parts by weight: 32-47 parts of polyvinyl alcohol, 21-34 parts of titanium magnesium powder, 3-7 parts of crosslinking agent, lubricant 1-
4 parts.
3. high-barrier according to claim 2 imitates paper liquid packaging film, which is characterized in that the PVA aqueous coating fluid packet
Include the following raw material according to parts by weight: 40 parts of polyvinyl alcohol, 28 parts of titanium magnesium powder, 5 parts of crosslinking agent, 3 parts of lubricant.
4. high-barrier according to claim 3 imitates paper liquid packaging film, which is characterized in that the crosslinking agent is isocyanates
One of compound, epoxide, aziridine cpd.
5. high-barrier according to claim 3 imitates paper liquid packaging film, which is characterized in that the lubricant is by paraffin and gathers
Ethylene waxes mix.
6. high-barrier according to claim 5 imitates paper liquid packaging film, which is characterized in that the lubricant is by paraffin and gathers
Ethylene waxes are mixed according to weight ratio 1:3.
7. high-barrier according to claim 3 imitates paper liquid packaging film, which is characterized in that the appearance of the transparent inner layer film
Face is coated with aluminium coated.
8. high-barrier according to claim 7 imitates paper liquid packaging film, which is characterized in that the aluminium coated uses Vacuum Deposition
Aluminium method is process.
9. the preparation method that a kind of high-barrier as described in claim 1-9 is any imitates paper liquid packaging film, which is characterized in that packet
Include following steps:
1) imitative paper outer membrane is made using co-extrusion film blowing machine, controls thickness at 50-120 μm；
2) transparent inner layer film is made using co-extrusion film blowing machine；
3) PVA aqueous coating fluid is coated in the internal layer of imitative paper outer membrane, forms high-obstruction；
4) it is aluminized using vacuum aluminum-coated method in the outer surface of transparent inner layer film or transparent inner layer film is not processed；
5) aqueous binder is coated on high-obstruction, is compounded in imitative paper outer membrane and transparent inner layer film using dry compound machine
Together, paper liquid packaging film is imitated up to the high-barrier after cured.
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Application publication date: 20190125 |