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Paper-plastic composite bag

A paper-plastic composite bag and plastic woven bag technology, which is applied in the field of paper-plastic composite bags, can solve the problems of difficult separation and increased cost of hot-melt plastic films, and achieve the effects of easy tearing, convenient classification, recycling and reuse, and cost reduction.

Inactive Publication Date: 2011-04-27
CHANGZHOU HUASHENG PLASTIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The existing composite bag materials are mainly formed by bonding kraft paper and plastic woven bags with hot-melt plastic film. Although this makes the kraft paper and plastic woven bags bond firmly, it is difficult to separate them when they are sorted and recycled. , and the whole sheet distribution of hot-melt plastic film also greatly increases the cost

Method used

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  • Paper-plastic composite bag
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Embodiment Construction

[0011] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0012] Such as figure 1 figure 2 image 3 As shown, it is the optimal embodiment of the paper-plastic composite bag of the present invention. A paper-plastic composite bag includes a kraft paper 1 and a plastic woven bag 2. Between the kraft paper 1 and the plastic woven bag 2, the adhesive 3 is coated and pressed. It is solidly bonded into one body, and then stitched and sealed by a bag making machine to form a paper-plastic composite bag. The binder 3 is arranged in a dot matrix between the kraft paper 1 and the plastic woven bag 2 .

[0013] The firmness of the bond between the kraft paper 1 and the plastic woven bag 2 can be adjusted by adjusting the d...

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Abstract

The invention relates to the technical field of industrial packaging, in particular to a paper-plastic composite bag. The bag comprises kraft paper and a plastic woven bag, wherein the kraft paper and the plastic woven bag are bonded into a whole through plastic coating and compaction by binders; and the binders are distributed in a dot matrix. In the paper-plastic composite bag, because the binders between the kraft paper and the plastic woven bag are distributed in dot matrix, the binders are saved, the cost is reduced, the kraft paper and the plastic woven bag are easily torn after the paper-plastic composite bag is used, and the paper-plastic composite bag is convenient to classify, recover and recycle.

Description

technical field [0001] The invention relates to the technical field of industrial packaging, in particular to a paper-plastic composite bag. Background technique [0002] At present, the domestic packaging of cement, fertilizer, sucrose, resin and other chemical raw materials powder and granular materials mainly includes kraft paper bags, gunny bags, ordinary woven bags, reinforced kraft paper bags and cotton linen kraft paper adhesive bags. The existing composite bag materials are mainly formed by bonding kraft paper and plastic woven bags with hot-melt plastic film. Although this makes the kraft paper and plastic woven bags bond firmly, it is difficult to separate them when they are sorted and recycled. , and the entire sheet distribution of hot-melt plastic film also greatly increases the cost. Contents of the invention [0003] The technical problem to be solved by the present invention is: in order to facilitate sorting and recycling and save costs, the present inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D30/02
Inventor 邹洪涛戴德明
Owner CHANGZHOU HUASHENG PLASTIC MACHINERY
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