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Production technology of anti-ageing plastic woven bag

A technology of plastic woven bag and production process, applied in the field of production process of anti-aging plastic woven bag, can solve the problem of loss of transparency, easy aging and degradation of polypropylene material, loss of tensile strength, impact strength and bending strength of woven bag and other problems, to achieve the effect of inhibiting thermo-oxidative aging degradation, improving antioxidant efficiency, and improving color stability

Inactive Publication Date: 2018-11-13
ZAOYANG DONGHANG WOVEN PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polypropylene material is easy to age and degrade, lose its original transparency, and the surface turns yellow, fades, or even completely pulverizes
The damage of natural oxidation to polypropylene woven bags is considerable. It not only affects the appearance of woven bags, but also with the deepening of oxidation, woven bags will gradually lose their original tensile strength, impact strength and Bending strength, etc., gradually lose use value

Method used

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  • Production technology of anti-ageing plastic woven bag
  • Production technology of anti-ageing plastic woven bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A production process of an anti-aging plastic woven bag, comprising the following steps:

[0027] S1: Raw material blending and drying: first add 100g of hindered amine light stabilizer aqueous solution to 10kg of filler masterbatch powder, stir and dry to prepare treated filler masterbatch, mix 100kg of polypropylene granules, 20g of cis-1 , 2-stilbene, 10g bis-octylamine, 5g aromatic phosphite, 0.02g hydroquinone, treated filler masterbatch, 100g2,2'-methylene-bis(4,6-di-tert-butyl Base phenyl) hydroxysodium phosphate is put into the drying mixer and stirred, put into the drying mixer and stirred, the drying temperature is 80-100 ℃, and the drying time is 30-50 minutes;

[0028] S2: wire drawing process: after the blending and drying of step S1, the material enters the extruder, is heated by the barrel and sheared by the screw and the barrel, and is extruded into a film through a die. The heating temperature is 175°C , and then cooled by water at 30°C, cut into embry...

Embodiment 2

[0034] A kind of production technology of anti-aging plastic woven bag, it is characterized in that: comprise the following steps:

[0035] S1: Raw material blending and drying: first add 500g of hindered amine light stabilizer to form an aqueous solution into 15kg of filler masterbatch powder, stir and dry to prepare a treated filler masterbatch, mix 100kg of polypropylene particles, 50g of cis-1 ,2-stilbene, 30g bis-octylamine, 10g aromatic phosphite, 0.05g hydroquinone, treated filler masterbatch, 200g2,2'-methylene-bis(4,6-di-tert-butyl Base phenyl) hydroxyaluminum phosphate is put into the drying mixer and stirred, the drying temperature is 80-100 ℃, and the drying time is 30-50 minutes;

[0036] S2: wire drawing process: after the blending and drying of step S1, the material enters the extruder, is heated by the barrel and sheared by the screw and the barrel, and is formed and extruded into a film by the die head. The heating temperature is 185°C , and then cooled by wa...

Embodiment 3

[0042] A production process of an anti-aging plastic woven bag, comprising the following steps:

[0043]S1: Raw material blending and drying: first add 250g of hindered amine light stabilizer to form an aqueous solution into 12.5kg of filler masterbatch powder, stir and dry to prepare a treated filler masterbatch, mix 100kg of polypropylene granules, 30g of cis Put 1,2-stilbene, 20g bis-octylamine, 7g aromatic phosphite, 0.03g hydroquinone, treated filler masterbatch, and 100g di-(p-methylbenzylidene)sorbitol into the dry mixer Stir, the drying temperature is 80-100°C, and the drying time is 30-50 minutes;

[0044] S2: wire drawing process: after the blending and drying of step S1, the material enters the extruder, is heated by the barrel and sheared by the screw and the barrel, and is extruded into a film through a die. The heating temperature is 180°C , and then cooled by water at 35°C, cut into embryo silk with a blade, and stretched through a drying plate to form a flat f...

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Abstract

The invention provides a production technology of an anti-ageing plastic woven bag. The technology comprises the following steps: S1, feeding polypropylene particles, cis 1, 2-toluylene, bis-octane amine, aromatic phosphite ester, a filling masterbatch, a light stabilizing agent, a nucleating agent and hydroquinone into a drying stirring machine; and stirring and then drying; S2, feeding the material obtained in step S1 into an extruder; heating through a material barrel and shearing through a cylinder; forming and extruding through a die head to form a film; cooling through water; cutting into base silks through blades; stretching into flat silks through a roasting plate; thermally sizing; and winding the silks; S3, knitting the wound flat silks into a cylindrical woven bag; and winding through a winding machine; S4, printing a trademark and a production note; S5, cutting into a woven fabric through a cutting machine; and S6, sewing an opening of the bag to obtain the woven fabric. The production technology aims at improving the ageing resisting and oxidization resisting capacity of the plastic woven fabric; the service life of the woven bag is prolonged; the difficulty in processing is reduced; and the cost is saved.

Description

technical field [0001] The invention relates to the technical field of plastic woven bags, in particular to a production process of anti-aging plastic woven bags. Background technique [0002] Plastic woven bags are made of polypropylene as the main raw material, which are extruded, drawn, and then weaved, woven, and bag-made. Polypropylene is a translucent, semi-crystalline thermoplastic with high strength, good insulation, low water absorption, high heat-forming temperature, low density, and high crystallinity. It is the main raw material for woven bags. However, polypropylene material is easy to age and degrade, lose its original transparency, and the surface turns yellow, fades, or even completely pulverizes. The damage of natural oxidation to polypropylene woven bags is considerable. It not only affects the appearance of woven bags, but also with the deepening of oxidation, woven bags will gradually lose their original tensile strength, impact strength and Bending str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/46D01F1/10D01D5/42
CPCD01D5/426D01F1/10D01F6/46
Inventor 张爱军张峰
Owner ZAOYANG DONGHANG WOVEN PRINTING CO LTD
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