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Manufacturing process of paper-plastic composite materials and packaging bags made of them

A manufacturing process and composite material technology, which is applied in the field of paper-plastic composite packaging bag manufacturing, can solve the problems of high printing cost and poor printing effect, and achieve the effect of reducing printing cost and small thickness

Active Publication Date: 2019-05-14
冯海燕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, the present invention proposes a paper-plastic composite material and a manufacturing process of the packaging bag made of it, which solves the defects of poor printing effect and high printing cost of the existing packaging bags for daily necessities

Method used

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  • Manufacturing process of paper-plastic composite materials and packaging bags made of them
  • Manufacturing process of paper-plastic composite materials and packaging bags made of them

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Embodiment Construction

[0025] Below in conjunction with each accompanying drawing, the present invention is described in detail.

[0026] The invention discloses a paper-plastic composite material, comprising: a tissue layer 11 and a film layer 12 (see attached figure 1 ), the tissue paper layer 11 and the film layer 12 are bonded and fixed by composite glue. The tissue paper layer 11 and the film layer 12 are bonded together by composite glue, and the thickness is small. The tissue paper layer 11 is convenient for printing inks with richer colors that are easy to adhere to the paper, and the printing cost is reduced. The paper-plastic composite material in the present invention has 14 grams of tissue paper / square and 40 grams of film / square; the composite glue is a solvent-free composite glue, which is convenient for the subsequent steps to carry out the blanching process.

[0027] The invention also discloses a production process of a packaging bag made of the above-mentioned paper-plastic compos...

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PUM

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Abstract

The invention discloses a paper-plastic composite which comprises a cotton paper layer and a thin film layer. The cotton paper layer and the thin film layer are glued and fixed through composite glue. The cotton paper layer and the thin film layer are glued together through the composite glue, the thickness of the paper-plastic composite is small, ink which adheres to paper easily and is richer in color is conveniently printed on the cotton paper layer, and the printing cost is reduced.

Description

technical field [0001] The invention relates to the field of manufacturing packaging bags made of paper-plastic composite materials, in particular to a manufacturing process of the packaging bags. Background technique [0002] At present, the packaging of daily necessities such as sanitary napkins is often made of plastic film. The printed patterns may not be bright enough to print complex and multi-layered color patterns, and the ink required is expensive; while more exquisite patterns can be printed on paper. Ink is cheaper. [0003] Existing paper-plastic composite bags are often composed of plastic and kraft paper. Usually, the plastic layer uses pp woven fabric with pp polypropylene (pp) as the base material, and the kraft paper uses refined composite kraft paper. The two are thermally compounded by molten plastic. The kraft paper coated cloth is formed by bag making, and then processed and sewn into a three-in-one paper-plastic bag for packaging and plastic sealing of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B31B70/02B31B70/20B31B70/26B31B70/64B31B70/74B32B27/10B32B7/12B31B150/00B31B160/10
CPCB32B7/12B32B27/10B32B2439/06
Inventor 冯海燕
Owner 冯海燕