CN209008113U - A kind of multi-layer co-extruded laminated film - Google Patents
A kind of multi-layer co-extruded laminated film Download PDFInfo
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- CN209008113U CN209008113U CN201821641617.1U CN201821641617U CN209008113U CN 209008113 U CN209008113 U CN 209008113U CN 201821641617 U CN201821641617 U CN 201821641617U CN 209008113 U CN209008113 U CN 209008113U
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Abstract
The utility model relates to a kind of multi-layer co-extruded laminated films, including an at least carrier film, and the outer surface of the carrier film is sequentially formed with metal barrier and heat-sealing bonding oxidant layer from inside to outside, and the inner surface of the carrier film is formed with sealant by co-extrusion.The utility model provides the cheap multilayer film for being used for flexible package, it allows to be sealed with different materials, it is preferred that being sealed with printing and/or metalized surface, it is the film that can be used in the case where not complicated processing step, and the too long waiting time need not be spent, especially suitable for packaged food.
Description
Technical field
The utility model relates to flexible packaging film technical field more particularly to a kind of multi-layer co-extruded laminated films.
Background technique
Flexible package is widely used in field of food and non food area.For example, flexible package is for package medical treatment
Product, such as needle, surgical operation bandage or gloves；In cosmetic field, flexible package for example for pack soap, shower cream or
Shampoo；In semiluxury field, plural layers are used for example as flexible packages, and the fragrance for cigarette pack seals packet
Dress；In field of food, flexible package is for packing sausage, coffee, starch-containing product, cake, bread and bakery, candy
(such as chocolate bars) and snacks (such as potato chips) etc..Flexible package generally include base carrier material such as paper, aluminium foil and/or
Plastic film can be wide to have by combining with other materials (such as the film that can be made of various thermoplastic polymers)
The form of the film composite of the property of general variation manufactures plural layers, other than the basic demand for meeting mechanical protection also
Show the barrier property about liquid, light, gas and fragrance etc..It is carried out at present using the laminating adhesive based on polyurethane
The shortcomings that dry lamination is the overlong time for needing to wait, 2 hours to 48 hours before the completion of adhesive curing process, and
Other film can be added in composite membrane, or can be before composite membrane is cut into final shape, for this purpose, usually must
The waiting time of 5 to 7 days orders of magnitude must be abided by.
Utility model content
In view of this, the purpose of the utility model is to provide a kind of multi-layer co-extruded laminated film, to solve in the prior art
Deficiency.
In order to achieve the above object, the purpose of this utility model is achieved through the following technical solutions:
There is provided a kind of multi-layer co-extruded laminated film, wherein including an at least carrier film, the outer surface of the carrier film is by interior
And it is sequentially formed with metal barrier and heat-sealing bonding oxidant layer outside, the inner surface of the carrier film is formed with sealing by co-extrusion
Layer.
Above-mentioned multi-layer co-extruded laminated film, wherein print is also formed between the metal barrier and heat-sealing bonding oxidant layer
Brush ink layer, the heat-sealing bonding oxidant layer are transparent.
Above-mentioned multi-layer co-extruded laminated film, wherein the heat-sealing bonding oxidant layer includes being spaced apart from each other setting and having identical
The the first heat-sealing bonding oxidant layer and the second heat-sealing bonding oxidant layer of thickness.
Above-mentioned multi-layer co-extruded laminated film, wherein the carrier film and the overall thickness of the sealant are 0.2mm to 2mm.
Above-mentioned multi-layer co-extruded laminated film, wherein the first heat-sealing bonding oxidant layer is using high glaze sealing paint, second heat
Adhesive phase is sealed using heat-sealing dispersing binder, heat-sealing paint or hot-melt adhesive.
Above-mentioned multi-layer co-extruded laminated film, wherein the carrier film is using plastic foil, paper or metal composition.
Above-mentioned multi-layer co-extruded laminated film, wherein the sealant is based on polyolefin or polyvinyl compound layer.
Compared with the prior art, the utility model has the beneficial effects that:
The cheap multilayer film for being used for flexible package is provided, allows to be sealed with different materials, preferably with printing and/or metal
Change face seal, be the film that can be used in the case where not complicated processing step, and need not spend too long etc.
To the time, especially suitable for packaged food.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.?
In attached drawing:
Fig. 1 shows the structural schematic diagram of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
Refering to what is shown in Fig. 1, the multi-layer co-extruded laminated film of the utility model includes an at least carrier film A1, carrier film A1's is outer
Surface is sequentially formed with metal barrier F and heat-sealing bonding oxidant layer from inside to outside, and the inner surface of carrier film A1 is formed by co-extrusion
There is sealant A2.In the technical program, it is also formed with printing ink layer D between metal barrier F and heat-sealing bonding oxidant layer, seals
Adhesive phase is transparent.
Heat-sealing bonding oxidant layer includes being spaced apart from each other setting and the heat of the first heat-sealing bonding oxidant layer B and second with identical thickness
Seal adhesive phase C.
The overall thickness of carrier film A1 and sealant A2 are 0.2mm to 2mm.First heat-sealing bonding oxidant layer B is close using high glaze
Envelope paint, the first heat-sealing bonding oxidant layer B is applied on surface to be coated, using conventional method well known by persons skilled in the art,
Solution or dispersion in volatile organic solvent.As solvent, such as ethyl alcohol, propyl alcohol, isopropanol, acetic acid second can be used
The mixture of ester, n-propyl acetate, acetone, methyl ethyl ketone, low boiling hydrocarbon or these solvents.Second heat-sealing bonding oxidant layer C is adopted
With heat-sealing dispersing binder, heat-sealing paint or hot-melt adhesive.Using conventional method well known by persons skilled in the art, applying
Afterwards, it is based on polyolefin, on the opposite side of sealant A2, solution or dispersion in the property of will volatilize organic solution are applied to be coated
On the surface of the carrier film A1 of cloth or polyvinyl.Second heat-sealing adhesive C can be sealed in based on polyolefin compound
Layer on, the layer based on polyolefin compound particularly preferably contains vinyl-vinyl acetate copolymer and/or Polypropylene copolymer
Object.Solvent, such as ethyl acetate, n-propyl acetate, acetone, methyl second can be used in application for the second heat-sealing adhesive C
The mixture of base ketone, low boiling hydrocarbon or these solvents, after the solvent is vaporised, the second heat-sealing adhesive C is on the surface of multilayer film
Remain drying layer.Carrier film A1 is using plastic foil, paper or metal composition.In preferred embodiments, carrier film A1 is by plastics
Film composition, according to feature and desired use is required, carrier film A1 can be combined with other plastic material or metal film to be formed
Composite membrane, and can also include paper, cardboard, metal or adhesive phase.Sealant A2 is based on polyolefin or polyvinyl
Nitride layer is closed, sealant A2 is formed by coextrusion, such as with flat membrane method or blowing, or by lamination, is squeezed out lamination or squeezed out
Apply coating.
From above-described embodiment as can be seen that the advantage of the utility model is:
The cheap multilayer film for being used for flexible package is provided, allows to be sealed with different materials, preferably with printing and/or metal
Change face seal, be the film that can be used in the case where not complicated processing step, and need not spend too long etc.
To the time, especially suitable for packaged food.
Specific embodiment of the utility model is described in detail above, but the utility model be not restricted to it is above
The specific embodiment of description, it is merely an example.To those skilled in the art, any equivalent modifications and substitution be also all
Among the scope of the utility model.Therefore, equal transformation made under the spirit and scope for not departing from the utility model
And modification, should all it cover in the scope of the utility model.
Claims (7)
1. a kind of multi-layer co-extruded laminated film, which is characterized in that including an at least carrier film, the outer surface of the carrier film is by interior
And it is sequentially formed with metal barrier and heat-sealing bonding oxidant layer outside, the inner surface of the carrier film is formed with sealing by co-extrusion
Layer.
2. multi-layer co-extruded laminated film as described in claim 1, which is characterized in that the metal barrier and heat-sealing bonding oxidant layer
Between be also formed with printing ink layer, the heat-sealing bonding oxidant layer is transparent.
3. multi-layer co-extruded laminated film as claimed in claim 1 or 2, which is characterized in that the heat-sealing bonding oxidant layer includes mutual
Interval setting and the first heat-sealing bonding oxidant layer and the second heat-sealing bonding oxidant layer with identical thickness.
4. multi-layer co-extruded laminated film as claimed in claim 3, which is characterized in that the total thickness of the carrier film and the sealant
Degree is 0.2mm to 2mm.
5. multi-layer co-extruded laminated film as claimed in claim 4, which is characterized in that the first heat-sealing bonding oxidant layer is close using high glaze
Envelope paint, the second heat-sealing bonding oxidant layer is using heat-sealing dispersing binder, heat-sealing paint or hot-melt adhesive.
6. multi-layer co-extruded laminated film as claimed in claim 4, which is characterized in that the carrier film uses plastic foil, paper or gold
Belong to composition.
7. multi-layer co-extruded laminated film as claimed in claim 4, which is characterized in that the sealant is based on polyolefin or poly- second
Alkenyl compound layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821641617.1U CN209008113U (en) | 2018-10-10 | 2018-10-10 | A kind of multi-layer co-extruded laminated film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821641617.1U CN209008113U (en) | 2018-10-10 | 2018-10-10 | A kind of multi-layer co-extruded laminated film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209008113U true CN209008113U (en) | 2019-06-21 |
Family
ID=66838030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821641617.1U Active CN209008113U (en) | 2018-10-10 | 2018-10-10 | A kind of multi-layer co-extruded laminated film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209008113U (en) |
-
2018
- 2018-10-10 CN CN201821641617.1U patent/CN209008113U/en active Active
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