CN109291597A - A kind of package compound film of media-resistant and preparation method thereof - Google Patents
A kind of package compound film of media-resistant and preparation method thereof Download PDFInfo
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- CN109291597A CN109291597A CN201811216696.6A CN201811216696A CN109291597A CN 109291597 A CN109291597 A CN 109291597A CN 201811216696 A CN201811216696 A CN 201811216696A CN 109291597 A CN109291597 A CN 109291597A
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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
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal 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
- B32B15/085—Layered products comprising a layer of metal comprising metal 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 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/12—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- 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
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/06—Layered products comprising a layer of paper or cardboard specially treated, e.g. surfaced, parchmentised
-
- 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
- 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
- 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
- B32B2255/12—Coating on the layer surface on paper layer
-
- 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
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/31—Heat sealable
-
- 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
- B32B2307/582—Tearability
- B32B2307/5825—Tear resistant
Abstract
The invention belongs to composite membrane technology fields, disclose a kind of package compound film and preparation method thereof of media-resistant, the composite membrane includes the printing layer of secondary setting from top to bottom, barrier layer and hot sealing layer, the printing layer is paper layer, the barrier layer is aluminium foil layer, the hot sealing layer includes the component of following parts by weight: 70~80 parts of low density polyethylene (LDPE), 20~30 parts of metallocene linear-low density polyethylene, the metallocene linear-low density polyethylene has good barrier property, avoiding the problem that influences adhesive in pack content permeable membrane causes compound erosion to be layered；In addition, the metallocene linear-low density polyethylene also has good contamination resistance and low-temperature heat-sealing performance, therefore, when containing the organic solvents such as alcohols, it is able to achieve sealing part is stained with a small amount of organic solvent and seals effect well.The low density polyethylene (LDPE) molding processibility is good, greatly compensates for the bad defect of the metallocene linear-low density polyethylene processing performance.
Description
Technical field
The invention belongs to composite membrane technology field, it is related to a kind of composite membrane and preparation method thereof, more particularly, to one kind
Package compound film of media-resistant and preparation method thereof.
Background technique
Package compound film with its material lightweight, it is easy to use, cost performance is high the advantages that obtain more and more extensive answer
With, but in the more demanding special dimension of some media-resistants still based on hard packing, as metal can, vial, plastic bottle or
Modified plastics bottle etc., main reason is that, these special dimensions, such as alcohol organic solvent, polarity is very big, and permeability is strong,
It is more demanding to the media-resistant of packaging material.
In the prior art, the structure of package compound film is usually made of printing layer, barrier layer and hot sealing layer, wherein printing
Layer is to play printing and protective effect to printed patterns, and barrier layer is functional layer, has the function of choke, shading etc., and hot sealing layer plays heat
Envelope acts on, and is made up using polyurethane adhesive of hot pressing combination process between each layer, but the barrier property of usually hot sealing layer has
It limits, the organic solvent in composite membrane can permeate hot sealing layer, influence polyurethane binder of composite membrane and lead to compound erosion point
Layer is even revealed, and there are security risks.For this purpose, to disclose a kind of media-resistant flexible package multiple by Chinese patent literature CN204977650U
Film is closed, it is successively compound by printing layer, the first adhesive layer, high barrier aluminum-plating film layer, the second adhesive layer, hot sealing layer from outside to inside
It forming, wherein hot sealing layer is improved polyalkene film, and barrier property is limited, to prevent organic solvent from revealing, the disclosure technology
Using specific modified high-molecular binding resin as the adhesive between each layer, the production of the package compound film is improved
Cost significantly limits the extensive use of above-mentioned package compound film.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that overcoming media-resistant package compound film in the prior art that need to adopt
Specific modified high-molecular binding resin, which is used, as adhesive leads to the higher defect of production cost, to provide a kind of production
Lower-cost media-resistant package compound film；Meanwhile the present invention also provides the preparation methods of the package compound film.
In order to solve the above technical problems, the present invention provides a kind of package compound film, including secondary setting from top to bottom
Printing layer, barrier layer and hot sealing layer, the printing layer are paper layer, and the barrier layer is aluminium foil layer, and the hot sealing layer includes as follows
The component of parts by weight: 70~80 parts of low density polyethylene (LDPE), 20~30 parts of metallocene linear-low density polyethylene.
Further, each component fusing point of the hot sealing layer is formed not higher than 100 DEG C.
Further, the hot sealing layer is three-layer extrusion film, the first polyethylene including being successively bonded setting from top to bottom
Layer, the second polyethylene layer and third polyethylene layer；The raw material of first polyethylene layer and second polyethylene layer is low close
The mixture of polyethylene and metallocene linear-low density polyethylene composition is spent, the raw material of the third polyethylene layer is metallocene line
Property low density polyethylene (LDPE).
Further, the printing layer is the art paper of 30~80g；The barrier layer with a thickness of 7~20 μm；It is described
Hot sealing layer with a thickness of 20~80 μm.
Further, character pattern layer is additionally provided with above the printing layer.
Further, light oil reservoir is additionally provided with above the character pattern layer.
The present invention also provides a kind of preparation methods of above-mentioned package compound film, include the following steps:
Binder is coated on the surface of the barrier layer, it is dry, make the binder in the barrier layer surface cure shape
At the first adhesive layer；At 50~65 DEG C, the printing layer and the first adhesive layer hot pressing are combined with each other；Institute
Another surface coating binder of barrier layer is stated, it is dry, form the binder in another surface cure of the barrier layer
Second adhesive layer；At 50~80 DEG C, the hot sealing layer and the second adhesive layer hot pressing are combined with each other, base is obtained
Film；
The base film is cured at 40~50 DEG C, the curing time >=48h.
Further, the method also includes printing on one side to the printing layer and the non-hot pressing of the barrier layer,
Form character pattern layer.
Further, the method also includes coating gloss oil to the character pattern layer, light oil reservoir is formed.
Further, described method includes following steps:
The surface of the printing layer is printed, character pattern layer is formed；The speed of the printing is 100~200m/
Min, the temperature dried after printing are 30~100 DEG C；
Gloss oil is coated on the surface of the character pattern layer, forms light oil reservoir；The speed of the coating is 100~200m/
Min, the temperature dried after coating are 70~100 DEG C；
Binder is coated in the another side of the printing layer, first is carried out at 50~90 DEG C and is dried, is made described glutinous
Mixture is formed by curing the first adhesive layer in the printing layer surface；At 50~65 DEG C, by the barrier layer and described first
Adhesive layer hot pressing is combined with each other；Binder is coated on another surface of the barrier layer, second is carried out at 50~80 DEG C
It is dried, the binder is made to form the second adhesive layer in the barrier layer surface cure；It, will be described at 50~80 DEG C
Hot sealing layer is combined with each other with the second adhesive layer hot pressing, obtains base film；
Above-mentioned base film is cured at 40~50 DEG C, the curing time >=48h.
Further, described first to be dried include that three sections of temperature are dried, and one section of temperature is 50~65 DEG C, and two
Duan Wendu is higher than described 15~20 DEG C of one section of temperature, and three sections of temperature are higher than described 20~25 DEG C of one section of temperature；Described second is dry
Processing includes that three sections of temperature are dried, and one section of temperature is 50~60 DEG C, and two sections of temperature are higher than described 5~10 DEG C of one section of temperature,
Three sections of temperature are higher than described 15~20 DEG C of one section of temperature.
Herein, the low density polyethylene (LDPE) is also known as high pressure polyethylene, is that ethylene free radical polymerize and obtains under high pressure
Thermoplastic, density are in 0.915~0.940g/cm3, the metallocene linear-low density polyethylene is with metallocene
It closes object and does the polyethylene that catalyst is produced.
Technical solution of the present invention has the advantages that
1. media-resistant package compound film provided by the invention, including printing layer, the barrier layer set gradually from top to bottom
And hot sealing layer, the hot sealing layer is made of the low density polyethylene (LDPE) and metallocene linear-low density polyethylene of special ratios, described
Metallocene linear-low density polyethylene has good barrier property, avoids influencing polyurethane gluing in pack content permeable membrane
The problem of agent causes compound erosion to be layered；In addition, the metallocene linear-low density polyethylene also has good antipollution
Ability and low-temperature heat-sealing performance therefore, can sealing part is stained with a small amount of organic solvent when containing the organic solvents such as alcohols
Realization seals effect well.The low density polyethylene (LDPE) molding processibility is good, and it is low greatly to compensate for the metallocene linear
The bad defect of density polyethylene processing performance.The present invention forms coordinated between each component of the hot sealing layer, so that this
The package compound film of invention has good barrier property, can prevent polar solvent such as alcohols solvent osmosis composite membrane, meanwhile,
The low density polyethylene (LDPE) is added in the metallocene linear-low density polyethylene, moreover it is possible to the tensile strength of composite membrane is adjusted,
Increase the easy-to-rupture of film.
2. media-resistant package compound film provided by the invention, the hot sealing layer is three-layer extrusion film, including from top to bottom
It is successively bonded the first polyethylene layer, the second polyethylene layer and third polyethylene layer of setting, the structure of three-layer extrusion film improves
The surface flatness and mechanical strength of hot sealing layer further improve the properties of hot sealing layer, and tie between each layer by hot melt
It closes without binder, therefore its wholesomeness is higher.
3. media-resistant package compound film provided by the invention further defines the thickness of each layer, the thickness of each film layer
The main adhesion firmness influenced between layers, each layer of package compound film of the invention uses specific thickness, so that institute
It is very high to state adhesion firmness between each layer of package compound film, and by long-term use after will not still generate between each layer layering or
The phenomenon that splitting.
4. media-resistant package compound film provided by the invention selects the art paper of 30~80g as printing layer, surface
Smooth, whiteness is higher, and paper fiber is evenly distributed, and thickness is consistent, and retractility is small, has stronger elasticity and stronger water resistant, resists
Extensional energy has good ink or coating absorbent properties and receives performance.
5. media-resistant package compound film provided by the invention is additionally provided with gloss oil above the character pattern layer
Layer, the light oil reservoir can not only protect character pattern layer well, and also add the slickness of composite film surface.
6. package compound film provided by the invention, good barrier property can keep content concentration in film to stablize, guarantee product
Storage period；Inertia is good, and chemical reaction is not generated with content, and absorbs to most content extremely low；Flexibility is good,
Be easy to tear off, high mechanical strength, can low-temperature resistance, be not easily broken, be easy to transport, storage.
7. the preparation method of package compound film provided by the invention will constitute each layer of the package compound film one
Hot pressing is compound at a temperature of fixed, and base film is made, and then carries out maturation process to base film again, obtains the package compound film.This
Invention defines the hot pressing combined temp of each layer and temperature, the time of curing, so that each layer is bonded together well, without
Lamination can be generated.In the preparation of hot sealing layer, using composite molding technique is squeezed out, the compound strong of hot sealing layer is not only improved
Degree, and production efficiency is improved, reduce production cost.
8. the preparation method of package compound film provided by the invention is dried, rear two sections of temperature using three sections of temperature
Degree is higher than one section of temperature, so set, the retarder thinner and instantaneous high-temperature that can sufficiently dry in binder stick
The drying of mixture appearance, and internal layer solvent can not dry composite membrane is caused to lead to the problem of fold.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the media-resistant package compound film of the embodiment of the present invention 1；
Fig. 2 is the structural schematic diagram of hot sealing layer in Fig. 1；
Fig. 3 is the structural schematic diagram of the media-resistant package compound film of the embodiment of the present invention 3.
Description of symbols:
1- printing layer；2- barrier layer；3- hot sealing layer；The first polyethylene layer of 31-；The second polyethylene layer of 32-；33- third is poly-
Pvdf layer；4- character pattern layer；5- light oil reservoir.
Specific embodiment
Technical solution of the present invention will be clearly and completely described below, it is clear that described embodiment is this hair
Bright a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.In addition, below
Technical characteristic involved in described different embodiments of the present invention as long as they do not conflict with each other can be mutual
In conjunction with.
Embodiment 1
A kind of package compound film of media-resistant, as shown in Figure 1, including the printing layer 1 set gradually from top to bottom, barrier
Layer 2 and hot sealing layer 3, the printing layer 1 are the art paper of 30g, and the barrier layer 2 is aluminium foil layer, with a thickness of 7 μm, the heat
Sealing 3 with a thickness of 20 μm, by the low density polyethylene (LDPE) of 70wt% and the metallocene linear-low density polyethylene group of 30wt%
At the fusing point of low density polyethylene (LDPE) and metallocene linear-low density polyethylene is not higher than 100 DEG C.As shown in Fig. 2, hot sealing layer 3
Including the first polyethylene layer 31, the second polyethylene layer 32 and third polyethylene layer 33, third polyethylene layer 33 and pack content
Directly contact.Wherein the first polyethylene layer 31 is made of low density polyethylene (LDPE) and metallocene linear-low density polyethylene, the two
Weight ratio is 4:1, and the second polyethylene layer 32 is made of low density polyethylene (LDPE) and metallocene linear-low density polyethylene, the weight of the two
For amount than being 5:1, third polyethylene layer is metallocene linear-low density polyethylene layer.
Hot sealing layer described in the present embodiment the preparation method comprises the following steps:
The raw material for forming each layer of the hot sealing layer is separately added into each layer extruder and carries out fusion plastification, extrusion, is then existed
Blow-up ratio is 1:2, and temperature carries out blown film under conditions of being 180 DEG C, then cooling through lower blowing water cold process, and three-layer extrusion film is made.
The package compound film of media-resistant described in the present embodiment the preparation method comprises the following steps:
Binder, dosage 3g/m are coated on the surface of the aluminium foil layer2, continuously successively passed through with the speed of 150m/min
50 DEG C, 65 DEG C and 75 DEG C three sections of baking ovens are crossed to be dried to obtain the first adhesive layer, then in the case where hot drum temperature is 50 DEG C,
Art paper and the first adhesive layer hot pressing are combined with each other；Binder is coated on another surface of the aluminium foil layer,
Dosage is 3g/m2, continuously successively it is dried by 50 DEG C, 60 DEG C and 70 DEG C three sections of baking ovens with the speed of 100m/min
It is then in the case where hot drum temperature is 50 DEG C, the hot sealing layer and the second adhesive layer hot pressing is compound to the second adhesive layer
Together, base film is obtained；The base film is cured at 50 DEG C, curing time 56h to get the media-resistant package compound
Film.
Embodiment 2
A kind of package compound film of media-resistant, including printing layer, barrier layer and the hot sealing layer set gradually from top to bottom,
The printing layer is the art paper of 80g, and the barrier layer is aluminium foil layer, with a thickness of 20 μm, the hot sealing layer with a thickness of 80 μ
M is made of the low density polyethylene (LDPE) of 80wt% and the metallocene linear-low density polyethylene of 20wt%, low density polyethylene (LDPE) and
The fusing point of metallocene linear-low density polyethylene is not higher than 100 DEG C.Hot sealing layer includes the first polyethylene layer, the second polyethylene layer
And third polyethylene layer, third polyethylene layer are directly contacted with pack content.Wherein the first polyethylene layer is by low density polyethylene
Alkene and metallocene linear-low density polyethylene composition, the weight ratio of the two is 13:2, and the second polyethylene layer is by low density polyethylene (LDPE)
And metallocene linear-low density polyethylene composition, the weight ratio of the two are 9:1, third polyethylene layer is metallocene linear low density
Polyethylene layer.
Hot sealing layer described in the present embodiment the preparation method comprises the following steps:
The raw material for forming each layer of the hot sealing layer is separately added into each layer extruder and carries out fusion plastification, extrusion, is then existed
Blow-up ratio is 1:4, and temperature carries out blown film under conditions of being 170 DEG C, then cooling through lower blowing water cold process, and three-layer extrusion film is made.
The package compound film of media-resistant described in the present embodiment the preparation method comprises the following steps:
Binder, dosage 4g/m are coated on the surface of the aluminium foil layer2, continuously successively passed through with the speed of 120m/min
50 DEG C, 70 DEG C and 75 DEG C three sections of baking ovens are crossed to be dried to obtain the first adhesive layer, then in the case where hot drum temperature is 55 DEG C,
Art paper and the first adhesive layer hot pressing are combined with each other；Binder is coated on another surface of the aluminium foil layer,
Dosage is 4g/m2, continuously successively it is dried by 60 DEG C, 70 DEG C and 80 DEG C three sections of baking ovens with the speed of 80m/min
It is then in the case where hot drum temperature is 65 DEG C, the hot sealing layer and the second adhesive layer hot pressing is compound to the second adhesive layer
Together, base film is obtained；The base film is cured at 45 DEG C, curing time 52h to get the media-resistant package compound
Film.
Embodiment 3
A kind of package compound film of media-resistant, as shown in figure 3, including the light oil reservoir 5 set gradually from top to bottom, text
Pattern layer 4, printing layer 1, barrier layer 2 and hot sealing layer 3, the printing layer 1 are the art paper of 60g, and the barrier layer 2 is aluminium foil
Layer, with a thickness of 15 μm, the hot sealing layer 3 with a thickness of 50 μm, by the low density polyethylene (LDPE) of 75wt% and the cyclopentadienyl of 25wt%
The fusing point of metal linear low density polyethylene (LDPE) composition, low density polyethylene (LDPE) and metallocene linear-low density polyethylene is not higher than
100℃.Hot sealing layer include the first polyethylene layer, the second polyethylene layer and third polyethylene layer, third polyethylene layer and packaging in
Tolerant direct contact.Wherein the first polyethylene layer is made of low density polyethylene (LDPE) and metallocene linear-low density polyethylene, the two
Weight ratio be 3:1, the second polyethylene layer is made of low density polyethylene (LDPE) and metallocene linear-low density polyethylene, the weight of the two
For amount than being 6:1, third polyethylene layer is metallocene linear-low density polyethylene layer.
Hot sealing layer described in the present embodiment the preparation method comprises the following steps:
The raw material for forming each layer of the hot sealing layer is separately added into each layer extruder and carries out fusion plastification, extrusion, is then existed
Blow-up ratio is 1:5, and temperature carries out blown film under conditions of being 190 DEG C, then cooling through lower blowing water cold process, and three-layer extrusion film is made.
The package compound film of media-resistant described in the present embodiment the preparation method comprises the following steps:
The surface of art paper is printed, to form character pattern layer, the dosage of ink is 3g/m2；The printing
Speed is 200m/min, and the temperature dried after printing is 100 DEG C；Gloss oil is coated in character pattern layer surface, the dosage of gloss oil is
1g/m2, the temperature dried after coating is 100 DEG C；Binder, dosage 2.5g/m are coated in the other side of the art paper2,
It continuously successively is dried to obtain the first binder by 65 DEG C, 85 DEG C and 90 DEG C three sections of baking ovens with the speed of 130m/min
Aluminium foil layer and the first adhesive layer hot pressing are combined with each other by layer then in the case where hot drum temperature is 65 DEG C；In the aluminium foil
Another surface of layer coats binder, dosage 2.5g/m2, with the speed of 90m/min continuously successively by 55 DEG C, 60 DEG C and
75 DEG C of three sections of baking ovens are dried to obtain the second adhesive layer, then in the case where hot drum temperature is 80 DEG C, by the hot sealing layer
It is combined with each other with the second adhesive layer hot pressing, obtains base film；The base film is cured at 50 DEG C, curing time 48h,
Up to the package compound film of the media-resistant.
Embodiment 4
A kind of package compound film of media-resistant, including set gradually from top to bottom light oil reservoir, character pattern layer, printing
Layer, barrier layer and hot sealing layer, the printing layer are the art paper of 50g, and the barrier layer is aluminium foil layer, with a thickness of 12 μm, institute
State hot sealing layer with a thickness of 40 μm, by the low density polyethylene (LDPE) of 75wt% and the metallocene linear-low density polyethylene of 25wt%
The fusing point of composition, low density polyethylene (LDPE) and metallocene linear-low density polyethylene is not higher than 100 DEG C.Hot sealing layer includes first poly-
Pvdf layer, the second polyethylene layer and third polyethylene layer, third polyethylene layer are directly contacted with pack content.Wherein first is poly-
Pvdf layer is made of low density polyethylene (LDPE) and metallocene linear-low density polyethylene, and the weight ratio of the two is 3:1, the second polyethylene
Layer is made of low density polyethylene (LDPE) and metallocene linear-low density polyethylene, and the weight ratio of the two is 6:1, and third polyethylene layer is
Metallocene linear-low density polyethylene layer.
Hot sealing layer described in the present embodiment the preparation method comprises the following steps:
The raw material for forming each layer of the hot sealing layer is separately added into each layer extruder and carries out fusion plastification, extrusion, is then existed
Blow-up ratio is 1:5, and temperature carries out blown film under conditions of being 190 DEG C, then cooling through lower blowing water cold process, and three-layer extrusion film is made.
The package compound film of media-resistant described in the present embodiment the preparation method comprises the following steps:
The surface of art paper is printed, to form character pattern layer, the dosage of ink is 3g/m2；The printing
Speed is 100m/min, and the temperature dried after printing is 30 DEG C；Gloss oil is coated in character pattern layer surface, the dosage of gloss oil is
2g/m2, the temperature dried after coating is 70 DEG C；Binder, dosage 4g/m are coated in the other side of the art paper2, with
The speed of 150m/min continuously successively is dried to obtain the first binder by 65 DEG C, 85 DEG C and 90 DEG C three sections of baking ovens
Aluminium foil layer and the first adhesive layer hot pressing are combined with each other by layer then in the case where hot drum temperature is 65 DEG C；In the aluminium foil
Another surface of layer coats binder, dosage 2.5g/m2, continuously successively pass through 55 DEG C, 60 DEG C with the speed of 100m/min
And 75 DEG C of three sections of baking ovens are dried to obtain the second adhesive layer, then in the case where hot drum temperature is 80 DEG C, by the heat-sealing
Layer is combined with each other with the second adhesive layer hot pressing, obtains base film；The base film is cured at 50 DEG C, the curing time
48h to get the media-resistant package compound film.
Comparative example 1
A kind of package compound film of media-resistant, including printing layer, barrier layer and the hot sealing layer set gradually from top to bottom,
The printing layer is the art paper of 30g, and the barrier layer is aluminium foil layer, with a thickness of 7 μm, the hot sealing layer with a thickness of 20 μ
M, the hot sealing layer are three-layer co-extruded cast polypropylene film out, and preparation method is the same as embodiment 1.
The test of experimental example barrier property
The present invention is implemented into the package compound film in 1-4 and comparative example 1 and carries out barrier property test, test method and survey
Test result is as follows.
Test method: cutting above-mentioned composite membrane respectively, and the pouch of 100mm × 160mm is made, and takes 100 parts respectively,
Every part of pouch fills the ethanol solution that volume fraction is 92%, then respectively by 50 parts therein, in 25 DEG C, average light intensity
To be placed under the illumination condition of 1600lx 4 months, in addition placed 2 months at 38~45 DEG C for 50 parts, whether observation composite membrane has
Lamination is permeated, it is as qualified if nothing；Conversely, as unqualified.
Test result: the composite membrane of 1-4 of the embodiment of the present invention is tested through above-mentioned test method, and 25 DEG C, under illumination condition
Test result is qualified, qualification rate 100%, unqualified, remaining survey that shows 4 parts of test results under the conditions of 38~45 DEG C of heat hiding
Test result is qualified, qualification rate 98%；The composite membrane of comparative example 1 is tested through above-mentioned test method, and 25 DEG C, show under illumination condition
Show only 12 parts of test result qualifications, qualification rate 24%, display only 5 parts of test results are closed under the conditions of 38~45 DEG C of heat are hidden
Lattice, qualification rate 10%.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments, and it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (11)
1. a kind of package compound film, printing layer (1), barrier layer (2) and hot sealing layer (3) including secondary setting from top to bottom, institute
Stating printing layer (1) is paper layer, and the barrier layer (2) is aluminium foil layer, which is characterized in that the hot sealing layer (3) includes following weight
The component of part: 70~80 parts of low density polyethylene (LDPE), 20~30 parts of metallocene linear-low density polyethylene.
2. package compound film according to claim 1, which is characterized in that each component for forming the hot sealing layer (3) is molten
Point is not higher than 100 DEG C.
3. package compound film according to claim 1 or 2, which is characterized in that the hot sealing layer (3) is three-layer co-extruded
Film, the first polyethylene layer (31), the second polyethylene layer (32) and third polyethylene layer including being successively bonded setting from top to bottom
(33)；The raw material of first polyethylene layer (31) and second polyethylene layer (32) is low density polyethylene (LDPE) and metallocene line
Property low density polyethylene (LDPE) composition mixture, the raw material of the third polyethylene layer (33) is the poly- second of metallocene linear low density
Alkene.
4. package compound film according to claim 1-3, which is characterized in that the printing layer (1) be 30~
The art paper of 80g；The barrier layer (2) with a thickness of 7~20 μm；The hot sealing layer (3) with a thickness of 20~80 μm.
5. package compound film according to claim 1-4, which is characterized in that in the upper of the printing layer (1)
Side is additionally provided with character pattern layer (4).
6. package compound film according to claim 5, which is characterized in that the top of the character pattern layer (4) also
It is provided with light oil reservoir (5).
7. a kind of preparation method of package compound film described in any one of claims 1-6, which is characterized in that including walking as follows
It is rapid:
Binder is coated on the surface of the barrier layer (2), it is dry, make the binder in the barrier layer (2) surface cure
Form the first adhesive layer；At 50~65 DEG C, the printing layer (1) and the first adhesive layer hot pressing are compounded in one
It rises；Binder is coated on another surface of the barrier layer (2), it is dry, make the binder in the another of the barrier layer (2)
Surface cure forms the second adhesive layer；It is at 50~80 DEG C, the hot sealing layer (3) and the second adhesive layer hot pressing are multiple
It is combined, obtains base film；
The base film is cured at 40~50 DEG C, the curing time >=48h.
8. preparation method according to claim 7, which is characterized in that further include to the printing layer (1) and the barrier
Layer (2) non-hot pressing is printed on one side, is formed character pattern layer (4).
9. preparation method according to claim 8, which is characterized in that further include coating light to the character pattern layer (4)
Oil is formed light oil reservoir (5).
10. preparation method according to claim 9, which comprises the steps of:
The surface of the printing layer (1) is printed, is formed character pattern layer (4)；The speed of the printing be 100~
200m/min, the temperature dried after printing are 30~100 DEG C；
Gloss oil is coated on the surface of the character pattern layer (4), is formed light oil reservoir (5)；The speed of the coating be 100~
200m/min, the temperature dried after coating are 70~100 DEG C；
Binder is coated in the another side of the printing layer (1), first is carried out at 50~90 DEG C and is dried, the bonding is made
Agent forms the first adhesive layer in printing layer (1) surface cure；At 50~65 DEG C, by the barrier layer (2) with it is described
First adhesive layer hot pressing is combined with each other；The barrier layer (2) another surface coat binder, at 50~80 DEG C into
Row second is dried, and the binder is made to form the second adhesive layer in the barrier layer (2) surface cure；At 50~80 DEG C
Under, the hot sealing layer (3) and the second adhesive layer hot pressing are combined with each other, base film is obtained；
Above-mentioned base film is cured at 40~50 DEG C, the curing time >=48h.
11. preparation method according to claim 10, which is characterized in that first drying process includes that three sections of temperature are dry
Dry processing, one section of temperature are 50~65 DEG C, and two sections of temperature are higher than described 15~20 DEG C of one section of temperature, and three sections of temperature are higher than described one
20~25 DEG C of Duan Wendu；Described second is dried including three sections of temperature drying process, and one section of temperature is 50~60 DEG C, two sections of temperature
Degree is higher than described 5~10 DEG C of one section of temperature, and three sections of temperature are higher than described 15~20 DEG C of one section of temperature.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110370739A (en) * | 2019-08-07 | 2019-10-25 | 浙江金石包装有限公司 | A kind of packing film and preparation method thereof |
| CN111690300A (en) * | 2020-07-06 | 2020-09-22 | 浙江金石包装有限公司 | Barrier coating and high-barrier composite material using same |
| CN112848588A (en) * | 2021-01-04 | 2021-05-28 | 浙江海顺新材料有限公司 | Medium-resistant low-migration easy-to-tear polyolefin film, preparation method and easy-to-tear packaging structure |
| CN114734710A (en) * | 2022-04-22 | 2022-07-12 | 浙江金石包装有限公司 | Boiling-resistant aluminum foil sealing film and production method thereof |
| CN115320188A (en) * | 2022-10-17 | 2022-11-11 | 宁波时代铝箔科技股份有限公司 | Tearable packaging material, preparation method thereof and packaging container |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120148785A1 (en) * | 2010-12-09 | 2012-06-14 | Industrial Technology Research Institute | Gas-barrier heat-seal composite films and vacuum insulation panels comprising the same |
| CN202528521U (en) * | 2012-05-17 | 2012-11-14 | 浙江金石包装有限公司 | Plaster packaging composite membrane in paper-aluminum-plastic structure |
| CN103802426A (en) * | 2014-03-05 | 2014-05-21 | 上海紫江彩印包装有限公司 | Explosion-proof easy-to-open sealing cover film for microwave-heated plastic food box |
| CN105172290A (en) * | 2015-09-06 | 2015-12-23 | 黄山永新股份有限公司 | Polyethylene film, packaging composite film, and making method of packaging composite film |
-
2018
- 2018-10-18 CN CN201811216696.6A patent/CN109291597A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120148785A1 (en) * | 2010-12-09 | 2012-06-14 | Industrial Technology Research Institute | Gas-barrier heat-seal composite films and vacuum insulation panels comprising the same |
| CN202528521U (en) * | 2012-05-17 | 2012-11-14 | 浙江金石包装有限公司 | Plaster packaging composite membrane in paper-aluminum-plastic structure |
| CN103802426A (en) * | 2014-03-05 | 2014-05-21 | 上海紫江彩印包装有限公司 | Explosion-proof easy-to-open sealing cover film for microwave-heated plastic food box |
| CN105172290A (en) * | 2015-09-06 | 2015-12-23 | 黄山永新股份有限公司 | Polyethylene film, packaging composite film, and making method of packaging composite film |
Non-Patent Citations (1)
| Title |
|---|
| 李代明主编: "《食品包装学》", 31 August 2008 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110370739A (en) * | 2019-08-07 | 2019-10-25 | 浙江金石包装有限公司 | A kind of packing film and preparation method thereof |
| CN111690300A (en) * | 2020-07-06 | 2020-09-22 | 浙江金石包装有限公司 | Barrier coating and high-barrier composite material using same |
| CN112848588A (en) * | 2021-01-04 | 2021-05-28 | 浙江海顺新材料有限公司 | Medium-resistant low-migration easy-to-tear polyolefin film, preparation method and easy-to-tear packaging structure |
| CN114734710A (en) * | 2022-04-22 | 2022-07-12 | 浙江金石包装有限公司 | Boiling-resistant aluminum foil sealing film and production method thereof |
| CN115320188A (en) * | 2022-10-17 | 2022-11-11 | 宁波时代铝箔科技股份有限公司 | Tearable packaging material, preparation method thereof and packaging container |
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