Plastic weaving bag production process

A plastic woven bag and production process technology, which is applied in the field of packaging materials, can solve the problems of high cost, insufficient rigidity, toughness, and room temperature stability of plastic woven bags, and consume a large amount of electric energy, so as to achieve less winding, change room temperature stability, and save energy. The effect of electricity

Inactive Publication Date: 2014-02-12
TONGCHENG FURUN PACKAGING MATERIAL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Plastic woven bags are made of raw materials into plastic flat wire, and then the flat wire is woven into cloth, and then sewn into bags according to a certain size. With the rapid development of China's economy, whether it is industry, electronics or agriculture, plastic woven bags The demand for bags is increasing day by day, so there is an urgent need for manufacturers of plastic woven bags to continuously innovate and produce products with better quality. The application number is CN201210442333.0, which discloses a preparation method for a composite plastic woven bag, which includes coating in turn. The steps of film, corona, hot-melt pressing, and seam bottom, this invention uses hot

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Plastic weaving bag production process

Examples

Experimental program
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Effect test

Example Embodiment

[0018] Example 1:

[0019] 1. The ratio of raw materials: polypropylene resin PP T30S: 54%, polypropylene resin PP 045: 29%, nano calcium carbonate filler masterbatch: 17%;

[0020] 2. Mixing: Weigh 125kg of the raw materials prepared in step (1), mix the raw materials with a high-speed mixer, and then dry, the drying temperature is controlled at 95°C, and the drying time is controlled at 18 minutes;

[0021] 3. Wire drawing: The raw material obtained in step (2) is fed into the extruder, and after the heating of the barrel and the mutual shearing action of the screw and the barrel, it becomes molten in a state of almost completely plasticizing. The heating The temperature is controlled at 220℃, and the film is formed and extruded through a die. The traction ratio is controlled to 1:5, and then cooled by water, and the water temperature is controlled at 48℃. It is cut into embryo filaments with a blade and stretched into flat filaments through an oven , The control draft ratio is 5,...

Example Embodiment

[0026] Example 2: The rest is the same as Example 1, except that in the step (2), the drying temperature is 98°C and the drying time is 20 minutes; in the step (3), the heating temperature is 230°C, the water temperature is 50°C, and the The reduction ratio is 0.97.

Example Embodiment

[0027] Example 3: The rest is the same as Example 1, but the difference is that in the step (2), the drying temperature is 101°C and the drying time is 22min; in the step (3), the heating temperature is 240°C and the water temperature It is 52°C and the retraction ratio is 0.99.

[0028] After the above process steps, take out a sample of the plastic woven bag for testing:

[0029]

[0030] From the above data, it can be seen that the radial and weft tensile loads of the product have reached 650 N·(50 mm) -1 Above, it fully meets the standard of GB / T8947-1998, and the heat resistance is good, and the drop test is all qualified. The mechanical properties of the product meet the requirements, or even better, and the appearance also meets the requirements. Intermittent 100 mm inner warp and weft There were no more than 2 broken wires, no broken stitches, broken threads, or unfolded stitches, and no insufficient composite width, obvious shedding, pores or lumps.

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Abstract

The invention discloses a plastic weaving bag production process and relates to the field of packing materials. The process comprises five technological processes of raw material burdening, mixing, drawing, weaving, printing-cutting and sewing. In the process method, raw material proportions in the raw material burdening process are reasonable, the performances of all the raw materials are fully played, the combined performances are greatly improved, a filling master batch adopts nano-calcium carbonate, and the mechanical properties and stability of the materials are improved; by reasonably controlling the parameters such as temperature, time and retraction ratio in the drawing process, manufactured ribbon-like filaments are excellent in quality and good in mechanical properties without being easily broken, and massive electric energy is saved by adopting a cam-combined energy-saving winding machine for winding and molding; after all steps of the weaving process, yarns are uniformly arrayed with less crossing and twisting, and a cloth surface has no wrinkles and is more attractive and reasonable in density; by reasonably controlling the needle pitch in the sewing process, the sewing direction strength of a weaving bag is high and the weaving bag has good falling performance.

Description

technical field [0001] The invention relates to the field of packaging materials, in particular to a production process of plastic woven bags. [0002] Background technique [0003] Plastic woven bags are made of raw materials into plastic flat wire, and then the flat wire is woven into cloth, and then sewn into bags according to a certain size. With the rapid development of China's economy, whether it is industry, electronics or agriculture, plastic woven bags The demand for bags is increasing day by day, so there is an urgent need for manufacturers of plastic woven bags to continuously innovate and produce products with better quality. The application number is CN201210442333.0, which discloses a preparation method for a composite plastic woven bag, which includes coating in turn. The steps of film, corona, hot-melt pressing, and seam bottom, this invention uses hot-melt pressing to bond the joint of the woven base fabric, so that the thickness of the joint is close to th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D01D5/42D01F6/46D01F8/06D01F1/10B31B1/68B31B50/68
Inventor 杨峰
Owner TONGCHENG FURUN PACKAGING MATERIAL
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