CN207274068U - A kind of high-barrier air column bag multilayer copolymerized compound membrane - Google Patents

A kind of high-barrier air column bag multilayer copolymerized compound membrane Download PDF

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Publication number
CN207274068U
CN207274068U CN201720500071.7U CN201720500071U CN207274068U CN 207274068 U CN207274068 U CN 207274068U CN 201720500071 U CN201720500071 U CN 201720500071U CN 207274068 U CN207274068 U CN 207274068U
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layer
air column
column bag
barrier
barrier air
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CN201720500071.7U
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齐志平
易绍财
易田田
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Hangzhou Giant Packaging Technology Co Ltd
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Hangzhou Giant Packaging Technology Co Ltd
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Abstract

The utility model belongs to composite packaging technical field of membrane; aim to provide a kind of high-barrier air column bag multilayer copolymerized compound membrane; the high-barrier air column bag multilayer copolymerized compound membrane is seven layers of composite membrane; wherein first layer material mixes for LDPE and MLDPE particles; second layer material mixes for LDPE, MLDPE and PP particle; third layer material mixes for PP and EVOH particles; 4th layer of material is PA film layers; layer 5 is as third layer material; layer 6 is as second layer material, and layer 7 is as first layer material.The high-barrier air column bag multilayer copolymerized compound membrane of the utility model, has that simple in structure, symmetry is good, intensity is high, and the air column bag barrier that can be suitably used for being filled with inert gas requires.

Description

A kind of high-barrier air column bag multilayer copolymerized compound membrane
Technical field
The utility model belongs to composite packaging technical field of membrane, is that a kind of high-barrier air column bag is total to multilayer specifically Squeeze composite membrane.
Background technology
With the development of coextru-lamination forming technique and co-extrusion equipment, traditional packaging material is just gradually by plastics package Material is substituted, especially in recent years multilayer materials development it is particularly rapid, due to its material property have trapping (oxygen, Carbon dioxide), shading, the safeguard function such as moisture-proof so that multilayer copolymerized compound membrane gains great popularity in packaging industry and food service industry, Development prospect is good.
The patent No. " CN201620224832.6 " describes a kind of multi-layer co-extruded liquid packaging film of high-barrier and flexible package punch Bag, is provided with barrier layer, theca externa and tack coat, and barrier layer is divided into the first barrier layer and the second barrier layer, and the first barrier again Layer is again than one layer more than the second barrier layer, although having good barriering effect, complicated, co-extrusion effect and integration are not It is good, it is unfavorable for producing control.The patent No. " CN201210537152.6 " describes a kind of High-barrier multi-layer coextrusion composite infusion film, For polyethylene naphthalate modified poly ester/ethylene-acrylic acid polymers/polypropylene, ethylene-octene copolymer blending tree The five-layer co-squeezing composite membrane that fat/ethylene propylene polymerization thing/modified polypropene is composed, has light transmittance, pliability, high resistant Every characteristics such as property, low temperature heat seal and heat sealing strengths, the use of infusion film is applicable to, but its production cost is high, production environment It is it is required that stringent and poor to barrier properties for gases.Therefore, it is necessary to existing high-barrier co-extrusion film is further improved, there is provided one Kind low cost, production air column bag coextrusion-lamination film easy to control, simple in structure, high-barrier.
Utility model content
The purpose of the utility model is to overcome deficiency of the prior art, there is provided a kind of high-barrier air column bag is total to multilayer Squeeze composite membrane.
To realize above-mentioned technique effect, the technical solution of the utility model is:A kind of high-barrier air column bag is with multi-layer co-extruded Composite membrane, the high-barrier air column bag multilayer copolymerized compound membrane are seven layers of composite membrane, per tunic by LDPE, MLDPE, PA, PP, One or more in PV, EVOH material are composed, and wherein first layer material mixes for LDPE and MLDPE particles;The Two layers of material mix for LDPE, MLDPE and PP particle;Third layer material mixes for PP and EVOH particles;4th layer Material is PA particles;Layer 5 is as third layer material, and layer 6 is as second layer material, layer 7 and first layer material Equally.
One kind as the utility model is improved, and the high-barrier air column bag uses automatic co-extrusion with multilayer copolymerized compound membrane Inflation film manufacturing machine one-pass molding, first layer to layer 7 are successively compound from bottom to up successively.
One kind as the utility model is improved, the LDPE of the high-barrier air column bag multilayer copolymerized compound membrane first layer It is 1 with MLDPE granular mass ratio:1~1:2.
One kind as the utility model is improved, the high-barrier air column bag multilayer copolymerized compound membrane second layer LDPE, MLDPE and PP granular mass ratio are 1:1:0.5~1:1:0.8.
One kind as the utility model is improved, the high-barrier air column bag with the PP of multilayer copolymerized compound membrane third layer and EVOH granular mass ratio is 1:0.8~1:1.
One kind as the utility model is improved, the PA materials of the 4th layer of multilayer copolymerized compound membrane of the high-barrier air column bag Matter is the one or more of PA6, PA9 and PA12.
One kind as the utility model is improved, and the high-barrier air column bag is per layer film thickness with multilayer copolymerized compound membrane 5~30 μm.
The utility model realizes a kind of high-barrier air column bag multilayer copolymerized compound membrane, has simple in structure, symmetry Good, intensity height, the second layer, third layer add PP (polypropylene) and are used as raw material, improve caking property between film, addition has EVOH (ethylene vinyl alcohol polymers) particle of high barrier, and it is located at third layer, substantially increase the barrier of film, energy Air column bag suitable for being filled with inert gas, which obstructs, to be required.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model high-barrier air column bag multilayer copolymerized compound membrane.
Embodiment
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings:A kind of as shown in Figure 1, high resistant Every air column bag multilayer copolymerized compound membrane, the high-barrier air column bag multilayer copolymerized compound membrane is seven layers of composite membrane, using certainly Dynamic coextrusion film blowing machine one-pass molding, first layer to layer 7 is successively compound from bottom to up successively, often tunic by LDPE, MLDPE, One or more in PA, PP, PV, EVOH material are composed, and wherein 1 material of first layer presses matter for LDPE and MLDPE particles Amount ratio 1:1~1:2 mix, and 2 material of the second layer is LDPE, MLDPE and PP particle example 1 in mass ratio:1:0.5~1: 1:0.8 mixes, and 3 material of third layer is PP and EVOH particles example 1 in mass ratio:0.8~1:1 mixes, the 4th layer 4 Material is the one or more of PA6, PA9 and PA12, and layer 55 is as 3 material material of third layer, layer 66 and the second layer 2 Material material is the same, and layer 77 is as 1 material of first layer;The composite membrane is 5~30 μm per layer film thickness.
Finally it should be noted that listed above is only specific embodiment of the utility model.Obviously, this practicality is new Type is not limited to above example, can also there is many variations.Those of ordinary skill in the art can be from disclosed in the utility model All deformations for directly exporting or associating in content, are considered as the scope of protection of the utility model.

Claims (4)

1. a kind of high-barrier air column bag multilayer copolymerized compound membrane, the high-barrier air column bag multilayer copolymerized compound membrane is seven layers Composite membrane, it is characterised in that first layer (1) material is mixed for LDPE and MLDPE particles, the second layer (2) material is LDPE, MLDPE and PP particles mix, and third layer (3) material mixes for PP and EVOH particles, and the 4th layer of (4) material is PA Grain, layer 5 (5) is as third layer (3) material, and layer 6 (6) is as the second layer (2) material, layer 7 (7) and first Layer (1) material is the same.
2. high-barrier air column bag multilayer copolymerized compound membrane according to claim 1, it is characterised in that coextrusion-lamination film is adopted It is successively compound from bottom to up successively with automatic coextrusion film blowing machine one-pass molding, first layer to layer 7.
3. high-barrier air column bag multilayer copolymerized compound membrane according to claim 1, it is characterised in that the PA of the 4th layer (4) Material is one kind of PA6, PA9 and PA12.
4. high-barrier air column bag multilayer copolymerized compound membrane according to claim 1, it is characterised in that composite membrane is per tunic Thickness is 5~30 μm.
CN201720500071.7U 2017-05-08 2017-05-08 A kind of high-barrier air column bag multilayer copolymerized compound membrane Active CN207274068U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720500071.7U CN207274068U (en) 2017-05-08 2017-05-08 A kind of high-barrier air column bag multilayer copolymerized compound membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720500071.7U CN207274068U (en) 2017-05-08 2017-05-08 A kind of high-barrier air column bag multilayer copolymerized compound membrane

Publications (1)

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CN207274068U true CN207274068U (en) 2018-04-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110027787A (en) * 2019-03-28 2019-07-19 浙江银科新材料科技有限公司 A kind of multi-layer co-extruded shaping membrane and its manufactured vacuum packaging bag

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110027787A (en) * 2019-03-28 2019-07-19 浙江银科新材料科技有限公司 A kind of multi-layer co-extruded shaping membrane and its manufactured vacuum packaging bag

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