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Vacuum compression bag and manufacturing method thereof

A technology of vacuum compression bag and production method, applied in the field of packaging bags, can solve problems such as poor adhesion, high cost, fatigue damage, etc., and achieve the effects of avoiding the influence of strength, improving weather resistance, and excellent flexibility

Inactive Publication Date: 2020-08-07
合肥佛斯德新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The materials of common vacuum compression bags are generally selected: PA+PE, MOPE, PVC, PET+PE, etc. Among them, PA+PE material is more flexible and durable, which can ensure no air leakage, but because the cost is relatively high High, currently domestic manufacturers only rarely use this material; the advantage of MOPE material is that it is particularly soft, but its adhesion is poor and it is easy to leak; the disadvantage of PVC material is that it is not environmentally friendly; currently more common vacuum compression bags The material is PET+PE, which has high strength and can effectively avoid the problem that the compressed bag formed after the quilt is compressed is scratched
However, the PET+PE material is relatively brittle, especially when the vacuum compression bag is not used and is folded and stored by itself, the creases of the vacuum compression bag are prone to fatigue damage, causing it to rupture and cause air leakage when it is used next time Moreover, long-term folding and storage will also make it difficult for the vacuum compression bag made of PET+PE to unfold, which is inconvenient for the storage of quilts and clothes

Method used

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  • Vacuum compression bag and manufacturing method thereof
  • Vacuum compression bag and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A vacuum compression bag, comprising a PE film layer (LDPE, 30 μm, the raw material is taken from Yangzi BASF 1810D) and a PET film layer (20 μm, the raw material is taken from China Yizheng Chemical Fiber, and the intrinsic viscosity is 0.68dL / g). The film layer is arranged on both sides of the PE film layer, and a 10 μm thick weather-resistant coating is provided on the side of the PET film layer adjacent to the PE film layer;

[0035] Wherein, the weather-resistant coating contains polyurethane resin glue (viscosity of 300mpa·S), polyphosphazene microspheres (diameter of 10 μm), glass powder (particle size of 5 μm) and ethyl acetate;

[0036] With respect to 100 parts by weight of the polyurethane resin glue, the content of the polyphosphazene microspheres is 18 parts by weight, the content of the glass powder is 30 parts by weight, and the content of the ethyl acetate is 200 parts by weight.

[0037] The manufacture method of above-mentioned vacuum compression bag com...

Embodiment 2

[0040] This embodiment has the same structure as the vacuum compression bag in Example 1, and the preparation method is the same. The difference is that in the weather-resistant coating, relative to 100 parts by weight of polyurethane resin glue, the polyphosphazene microspheres The content is 10 parts by weight, the content of the glass powder is 20 parts by weight, and the content of the ethyl acetate is 150 parts by weight; the rest remain unchanged.

Embodiment 3

[0042] This embodiment has the same structure as the vacuum compression bag in Example 1, and the preparation method is the same. The difference is that in the weather-resistant coating, relative to 100 parts by weight of polyurethane resin glue, the polyphosphazene microspheres The content is 25 parts by weight, the content of the glass powder is 40 parts by weight, and the content of the ethyl acetate is 200 parts by weight; the rest remain unchanged.

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Abstract

The invention belongs to the technical field of packaging bags, and particularly relates to a vacuum compression bag and a manufacturing method thereof. The vacuum compression bag comprises a PE filmlayer and PET film layers; the PET film layers are arranged on the two sides of the PE film layer, and a weather-resistant coating layer is arranged on the side, close to the PE film layer, of each PET film layer; each weather-resistant coating layer contains curing glue, polyphosphazene microspheres, glass powder and a solvent, the diameter of the polyphosphazene microspheres is 8-15 [mu]m, and the particle size of the glass powder is 3-8 [mu]m. According to the vacuum compression bag, the PE film is arranged to be of a middle layer structure, and the PET films are each arranged to be of an outer side structure, so that a good protection effect is achieved, and the vacuum compression bag is firm and durable; in addition, the weather-resistant coating layers are arranged between the PET film layer and the PE film layers, so that the overall weather resistance of the vacuum compression bag is improved.

Description

technical field [0001] The invention belongs to the technical field of packaging bags, in particular to a vacuum compression bag and a manufacturing method thereof. Background technique [0002] Vacuum compression bag, also known as vacuum packaging bag, is a bag mainly used to hold quilts and various clothes. Its working principle is to take away the air in the quilts and clothes, so that the volume can be reduced to save storage. purpose of space. The materials of common vacuum compression bags are generally selected: PA+PE, MOPE, PVC, PET+PE, etc. Among them, PA+PE material is more flexible and durable, which can ensure no air leakage, but because the cost is relatively high High, currently domestic manufacturers only rarely use this material; the advantage of MOPE material is that it is particularly soft, but its adhesion is poor and it is easy to leak; the disadvantage of PVC material is that it is not environmentally friendly; currently more common vacuum compression ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B27/32B32B27/36B32B7/12B32B33/00C09J175/04C09J11/08C09J11/04B65D30/08B65D81/20
CPCB32B27/08B32B27/32B32B27/36B32B7/12B32B33/00C09J175/04C09J11/08C09J11/04B65D29/02B65D81/2023B32B2255/10B32B2307/546B32B2307/558B32B2439/00
Inventor 茆贵云
Owner 合肥佛斯德新材料科技有限公司
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