A kind of preparation technology of plastic bag lined with carton

A preparation process and technology of plastic bags, applied in the field of plastic bags, can solve the problems of difficult plastic molding, low transparency and high production cost, and achieve the effects of reducing labor input, uniform and transparent color, and high quality level.

Inactive Publication Date: 2018-08-10
昆明新鑫润丰塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the application of lined plastic bags, some disadvantages often appear in some fields, such as: ① ordinary polyethylene material has low transparency, high density, and low melting point; High production cost; ③Due to the influence of its properties, the plastic is not easy to shape, so it consumes a lot of energy

Method used

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  • A kind of preparation technology of plastic bag lined with carton
  • A kind of preparation technology of plastic bag lined with carton
  • A kind of preparation technology of plastic bag lined with carton

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Experimental program
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Effect test

Embodiment

[0019] The preparation steps of carton lined plastic bags are as follows:

[0020] 1. Material selection: Low-density high-pressure polyethylene PE-LD film is selected;

[0021] 2. Determine the specification: determine the size of the required film as the standard specification according to the demand;

[0022] 3. Fold in half: fold the standard specification film in half;

[0023] 4. Cutting: According to the length of half the width of the bottom of the plastic inner bag, cut two squares on the two corners of the side of the crease;

[0024] 5. Modeling: the film after opening and cutting will be erected respectively along the cutting edge, so that it presents a three-dimensional square bag shape;

[0025] 6. Sealing: seal the bottom horizontal and central vertical sides of both sides;

[0026] 7. Perforation: The holes on the long side of the inner bag are distributed in 3 rows and 4 rows, and the holes on the narrow side are distributed in 3 rows and 2 rows; the distan...

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Abstract

The invention discloses a carton lining plastic bag preparation technology which comprises the following steps: a low-density high-pressure polyethylene film is selected, the size of the film is determined as demanded, the film is folio, two squares are cut off at two angles on one side of the line made by folding according to the length of one half of the bottom width of a plastic inner bag, the cut-off film is opened and is erected along the cut-off lines to form a three-dimensional square bag shape, the horizontal sides and central vertical sides at the bottoms of two side faces are sealed, and eyelet work is carried out on long sides and narrow sides of the inner bag as demanded. According to the invention, the sealing sides of the carton lining plastic bag are decreased to four sides, so that the production processes are reduced, the raw material is saved, investment in labor force and the production cost are reduced, and the production efficiency is improved; and in addition, the product is uniform and transparent in color and luster, is free from extraneous odor and foreign matter, and is higher in quality level.

Description

technical field [0001] The invention relates to the field of plastic bags, in particular to a process for preparing plastic bags lined with cartons. Background technique [0002] At present, lined plastic bags are widely used in various industries and fields, and they are also playing an increasingly important role, and the amount is gradually increasing. However, with the application of lined plastic bags, some disadvantages often appear in some fields, such as: ① ordinary polyethylene material has low transparency, high density, and low melting point; The production cost is high; ③ due to the influence of its properties, the plastic is not easy to shape, so the energy consumption is large. Contents of the invention [0003] The object of the present invention is to provide a carton-lined plastic bag preparation process to solve the problems raised in the above-mentioned background technology. [0004] To achieve the above object, the present invention provides the foll...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B31B70/00B31B70/20B31B70/60B31B70/26
Inventor 安家富
Owner 昆明新鑫润丰塑料有限公司
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