CN102501516A - Paper-plastic composite film and manufacturing method of paper-plastic composite film - Google Patents
Paper-plastic composite film and manufacturing method of paper-plastic composite film Download PDFInfo
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- CN102501516A CN102501516A CN201110304478XA CN201110304478A CN102501516A CN 102501516 A CN102501516 A CN 102501516A CN 201110304478X A CN201110304478X A CN 201110304478XA CN 201110304478 A CN201110304478 A CN 201110304478A CN 102501516 A CN102501516 A CN 102501516A
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Abstract
The embodiment of the invention provides a paper-plastic composite film and a manufacturing method of the paper-plastic composite film. The paper-plastic composite film at least comprises a first resin layer, a paper layer, a second resin layer, a first bonding layer, a barrier layer, a second bonding layer and a third resin layer in sequence. The paper-plastic composite film has high barrier property and mechanical strength, and is relatively environment-friendly.
Description
Technical field
The present invention relates to a kind of packaging material, be specifically related to a kind of paper laminated film and paper laminated film preparation method.
Background technology
Current, the laminated film that is used for the food-grade packaging material is mainly overall plastic film.
Under the overall situation of the packing development trend of environmental protection, energy-saving and emission-reduction, the raw material of packing plastic material derives from oil mostly, has the characteristic that discarded back is difficult for degraded, so can't satisfy the requirement of current development overall situation.Though occurred being applied to the material paper-plastic composite film of food-grade packing at present on the market; It is substrate by paper with the plastic sheeting of aluminizing, and main with being applied to packing of solid, frangible based food, the barrier property master of whole thin film material is with relying on the plastic film layers of aluminizing; But the aluminized plastic film cost is higher; External force such as aluminium coated is collided are slightly made the time spent electroplated metal layer and are prone to be destroyed, thereby considerable influence has limited its range of application to the barrier property of thin-film material.
Summary of the invention
The embodiment of the invention provides a kind of paper laminated film and paper laminated film preparation method, has higher barrier and mechanical strength in the hope of it, and environmental protection relatively.
For solving the problems of the technologies described above, the embodiment of the invention provides following technical scheme:
The embodiment of the invention provides a kind of paper laminated film on the one hand, comprises at least successively:
First resin bed, ply of paper, second resin bed, first adhesive layer, barrier layer, second adhesive layer and the 3rd resin bed.
Optional, said ply of paper comprises brown paper.
Optional, the weight of said brown paper accounts for 35 to 65% of paper laminated film gross weight.
Optional, the weight of said brown paper accounts for 50% of paper laminated film gross weight.
Optional, said first resin bed, second resin bed or the 3rd resin bed comprise polyvinyl resin.
Optional, said first adhesive layer and second adhesive layer comprise polyethylene based adhesive.
Optional, said barrier layer comprises ethylene-vinyl alcohol copolymer.
The embodiment of the invention provides a kind of preparation method of paper laminated film on the other hand, comprising:
Five layers of composite membrane that second resin bed, first adhesive layer, barrier layer, second adhesive layer and the 3rd resin bed are formed in order are one-body molded through expressing technique;
Obtain six layers of composite membrane with integrated five layers of composite membrane and ply of paper are compound;
Said six layers of composite membrane input T type is extruded the curtain coating die orifice, make that extruding the first resin bed fusion curtain coating that the curtain coating die orifice extrudes from said T type obtains the paper laminated film at the ply of paper of said six layers of composite membrane.
Optional, said ply of paper comprises brown paper.
Optional, the weight of said brown paper accounts for 35～65% of paper laminated film gross weight.
Therefore the paper laminated film that the embodiment of the invention provides comprises the paper synthetic material, helps improving barrier and mechanical strength; And have outstanding gas barrier property, good oil resistivity and organic solvent resistance; Poisonous and harmful substances such as its not chloride He bioxin are capable of regeneration green materials, can environment not polluted; So can be widely used in, for example can be used for solid or liquid, need to protect the use of fragrant series products packing as in the cosmetic package.
And,, then can further promote tensile strength and the suppleness and the water-fast bursting strength height of paper laminated film if the ply of paper of paper laminated film comprises materials such as brown paper.If shared ratio is near 50% in total for brown paper, then whole paper THIN COMPOSITE film strength and deflection can mainly be fixed against brown paper, can reduce the consumption of traditional petroleum-based plastics material simultaneously greatly.And; The barrier property of whole film can be dependent on the barrier layer in five layers of composite membrane of coextrusion, because five layers of composite membrane are the one extrusion molding, barrier layer can comprise ethylene-vinyl alcohol copolymer; Barrier property is better relatively, does not exist to receive the external force effect and impaired phenomenon.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of paper laminated film of providing of the embodiment of the invention.
The specific embodiment
The embodiment of the invention provides a kind of paper laminated film and paper laminated film preparation method, has higher barrier and mechanical strength in the hope of it, and environmental protection relatively.
For make goal of the invention of the present invention, characteristic, advantage can be more obvious and understandable; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, the embodiments described below only are the present invention's part embodiment, but not whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making all other embodiment that obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Below be elaborated respectively through specific embodiment.
Referring to Fig. 1, the structural representation of a kind of paper laminated film that Fig. 1 provides for the embodiment of the invention.Wherein, a kind of paper laminated film comprises at least successively: first resin bed 10, ply of paper 20, second resin bed 30, first adhesive layer 40, barrier layer 50, second adhesive layer 60 and the 3rd resin bed 70.
In practical application, ply of paper 20 can comprise like brown paper etc. having the material that mechanical strength is higher, pliability is higher.Wherein, the weight of brown paper for example accounts for 35 to 65% or other ratio of paper laminated film gross weight, and the weight of this brown paper preferably accounts for about 50% of paper laminated film gross weight.
In practical application, first resin bed 10, second resin bed 30 and/or the 3rd resin bed 70 for example can comprise polyvinyl resin (PE) or other resin material.
First adhesive layer 40 and/or second adhesive layer 60 for example can comprise polyethylene based adhesive or other adhesive material.
The embodiment of the invention also provides a kind of preparation method of paper laminated film, can comprise:
Five layers of composite membrane that second resin bed, first adhesive layer, barrier layer, second adhesive layer and the 3rd resin bed are formed in order are one-body molded through expressing technique;
Then obtain six layers of composite membrane with integrated five layers of composite membrane and ply of paper are compound;
Then six layers of composite membrane input T types are extruded the curtain coating die orifice, make that extruding the first resin bed fusion curtain coating that the curtain coating die orifice extrudes from this T type obtains the paper laminated film at the ply of paper of six layers of composite membrane.
In practical application, the ply of paper in the paper laminated film for example can comprise the material higher like mechanical strengths such as brown paper, that pliability is higher.Wherein, the weight of this brown paper for example can account for 35 to 65% or other ratio of paper laminated film gross weight, and the weight of this brown paper preferably accounts for about 50% of paper laminated film gross weight.
In practical application, first resin bed, second resin bed and/or the 3rd resin bed for example can comprise polyvinyl resin (PE) or other resin material.
First adhesive layer and/or second adhesive layer for example can comprise polyethylene based adhesive or other adhesive material.
Barrier layer for example can comprise ethylene-vinyl alcohol copolymer (EVOH) or other has the material of barrier property.
Therefore the paper laminated film that the embodiment of the invention provides comprises the paper synthetic material, helps improving barrier and mechanical strength; And have outstanding gas barrier property, good oil resistivity and organic solvent resistance; Poisonous and harmful substances such as its not chloride He bioxin are capable of regeneration green materials, can environment not polluted; So can be widely used in, for example can be used for solid or liquid, need to protect the use of fragrant series products packing as in the cosmetic package.
And,, then can further promote tensile strength and the suppleness and the water-fast bursting strength height of paper laminated film if the ply of paper of paper laminated film comprises materials such as brown paper.If shared ratio is near 50% in total for brown paper, then whole paper THIN COMPOSITE film strength and deflection can mainly be fixed against brown paper, can reduce the consumption of traditional petroleum-based plastics material simultaneously greatly.And; The barrier property of whole film can be dependent on the barrier layer in five layers of composite membrane of coextrusion, because five layers of composite membrane are the one extrusion molding, barrier layer can comprise ethylene-vinyl alcohol copolymer; Barrier property is better relatively, does not exist to receive the external force effect and impaired phenomenon.
More than a kind of paper laminated film and paper laminated film preparation method that the embodiment of the invention provided have been carried out detailed introduction; Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that on the specific embodiment and range of application, all can change, to sum up, this description should not be construed as limitation of the present invention.
Claims (10)
1. a paper laminated film is characterized in that, comprises at least successively:
First resin bed, ply of paper, second resin bed, first adhesive layer, barrier layer, second adhesive layer and the 3rd resin bed.
2. paper laminated film according to claim 1 is characterized in that,
Said ply of paper comprises brown paper.
3. paper laminated film according to claim 2 is characterized in that,
The weight of said brown paper accounts for 35 to 65% of paper laminated film gross weight.
4. paper laminated film according to claim 3 is characterized in that,
The weight of said brown paper accounts for 50% of paper laminated film gross weight.
5. according to each described paper laminated film of claim 1 to 4, it is characterized in that,
Said first resin bed, second resin bed or the 3rd resin bed comprise polyvinyl resin.
6. according to each described paper laminated film of claim 1 to 4, it is characterized in that,
Said first adhesive layer and second adhesive layer comprise polyethylene based adhesive.
7. according to each described paper laminated film of claim 1 to 4, it is characterized in that,
Said barrier layer comprises ethylene-vinyl alcohol copolymer.
8. the preparation method of a paper laminated film is characterized in that, comprising:
Five layers of composite membrane that second resin bed, first adhesive layer, barrier layer, second adhesive layer and the 3rd resin bed are formed in order are one-body molded through expressing technique;
Obtain six layers of composite membrane with integrated five layers of composite membrane and ply of paper are compound;
Said six layers of composite membrane input T type is extruded the curtain coating die orifice, make that extruding the first resin bed fusion curtain coating that the curtain coating die orifice extrudes from said T type obtains the paper laminated film at the ply of paper of said six layers of composite membrane.
9. method according to claim 8 is characterized in that,
Said ply of paper comprises brown paper.
10. method according to claim 9 is characterized in that,
The weight of said brown paper accounts for 35～65% of paper laminated film gross weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110304478XA CN102501516A (en) | 2011-10-10 | 2011-10-10 | Paper-plastic composite film and manufacturing method of paper-plastic composite film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110304478XA CN102501516A (en) | 2011-10-10 | 2011-10-10 | Paper-plastic composite film and manufacturing method of paper-plastic composite film |
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| CN102501516A true CN102501516A (en) | 2012-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110304478XA Pending CN102501516A (en) | 2011-10-10 | 2011-10-10 | Paper-plastic composite film and manufacturing method of paper-plastic composite film |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109249659A (en) * | 2018-09-11 | 2019-01-22 | 东莞市鼎力薄膜科技有限公司 | The preparation method of modified BOPP laminated film and its composite membrane and optical cement |
| CN112391875A (en) * | 2019-08-19 | 2021-02-23 | 佛山市顺德区静燕峰纸业有限公司 | Food-grade kraft paper packaging bag and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1337914A (en) * | 1999-01-27 | 2002-02-27 | 泰特拉-勒维尔金融控股公司 | Laminated packaging material for paper container |
| CN1649729A (en) * | 2002-05-02 | 2005-08-03 | 国际纸业公司 | Barrier laminate structure for packaging beverages |
-
2011
- 2011-10-10 CN CN201110304478XA patent/CN102501516A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1337914A (en) * | 1999-01-27 | 2002-02-27 | 泰特拉-勒维尔金融控股公司 | Laminated packaging material for paper container |
| CN1649729A (en) * | 2002-05-02 | 2005-08-03 | 国际纸业公司 | Barrier laminate structure for packaging beverages |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109249659A (en) * | 2018-09-11 | 2019-01-22 | 东莞市鼎力薄膜科技有限公司 | The preparation method of modified BOPP laminated film and its composite membrane and optical cement |
| CN109249659B (en) * | 2018-09-11 | 2021-07-20 | 东莞市鼎力薄膜科技有限公司 | Modified BOPP composite film, composite film thereof and preparation method of optical cement |
| CN112391875A (en) * | 2019-08-19 | 2021-02-23 | 佛山市顺德区静燕峰纸业有限公司 | Food-grade kraft paper packaging bag and preparation method thereof |
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Application publication date: 20120620 |