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Production process of anti-oxidizing plastic woven bag

An anti-oxidative plastic, production process technology, applied in the direction of chemical characteristics of fibers, textiles and paper, one-component polyolefin rayon, etc., can solve the loss of transparency, loss of tensile strength, impact strength and resistance of woven bags. Bending strength, easy aging and degradation of polypropylene materials, etc., to achieve the effect of inhibiting thermal-oxidative aging degradation, improving color stability, and improving anti-oxidation efficiency

Inactive Publication Date: 2018-10-23
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 process of anti-oxidizing plastic woven bag
  • Production process of anti-oxidizing plastic woven bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of production technology of anti-oxidation plastic woven bag, comprises 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 trans-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, c...

Embodiment 2

[0034] A kind of production technology of anti-oxidation 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 aqueous solution to 15kg of filler masterbatch powder, stir and dry to prepare treated filler masterbatch, mix 100kg of polypropylene granules, 50g of trans-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 water at 40°...

Embodiment 3

[0042] A kind of production technology of anti-oxidation plastic woven bag, comprises 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 trans 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 ...

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Abstract

The invention provides a production process of anti-oxidizing plastic woven bag, which includes the steps of: S1) feeding polypropylene granules, trans-1,2-toluylene, dioctane amine, aromatic phosphite ester, filling master batch, a photo-stabilizer, a nucleating agent, and hydroquinone into a drying and stirring machine, and stirring and drying the components; S2) feeding the materials, after step S1), into an extruder, for performing extrusive shaping through a mold head to form thin film by heating the materials through a cylinder and shearing the materials through a screw rod and a machinecylinder, cooling the thin film in water, cutting the thin film into filament green body with blades, stretching the filament green body to form flat filaments through a drying board, and performingthermal shaping, and reeling the filaments into coil; S3) weaving the coiled flat filaments into cylindrical woven bag and reeling the woven bag on a reeling machine; S4) printing trade mark and production comment; S5) cutting the cylindrical woven bag into woven bags on a cutting machine; S6) sewing bag mouths to form the woven bag product. The production process can improve anti-aging and anti-oxidizing capability of the plastic woven bag, thereby prolonging service life, reducing processing difficulty and saving cost.

Description

technical field [0001] The invention relates to the technical field of plastic woven bags, in particular to a production process of an anti-oxidation plastic woven bag. 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 Bendi...

Claims

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Application Information

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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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