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Production process of anti-aging 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: 2018-11-06
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-aging plastic woven bag
  • Production process of anti-aging plastic woven bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0027] S1: Blending and drying of raw materials: firstly add 100g of hindered amine light stabilizer to form an aqueous solution into 10kg of filler masterbatch powder, stir and dry to prepare a processed filler masterbatch, mix 100kg of polypropylene particles, 20g of diphenylacetylene , 10g bis-octaneamine, 5g aromatic phosphite, 0.02g hydroquinone, treated filler masterbatch, 100g 2,2'-methylene-bis(4,6-di-tert-butylphenyl) phosphate hydroxyl The sodium is put into the drying mixer and stirred, and the drying temperature is 80-100℃, and the drying time is 30-50 minutes;

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

Embodiment 2

[0034] A production process of anti-aging plastic woven bag is characterized in that: comprising the following steps:

[0035] S1: Blending and drying of raw materials: First add 500g of hindered amine light stabilizer into an aqueous solution into 15kg of filler masterbatch powder, stir and dry to prepare a processed filler masterbatch, mix 100kg of polypropylene particles, 50g of diphenylacetylene , 30g bis-octaneamine, 10g aromatic phosphite, 0.05g hydroquinone, treated filler masterbatch, 200g 2,2'-methylene-bis(4,6-di-tert-butylphenyl) phosphate hydroxyl The aluminum is put into the drying mixer for stirring, the drying temperature is 80-100°C, and the drying time is 30-50 minutes;

[0036] S2: wire drawing process: the material after blending and drying in step S1 enters the extruder, is heated by the barrel and sheared by the screw and the barrel, and is extruded into a film through the die head, and the heating temperature is 185 ° C , and then cooled by water at 40 °...

Embodiment 3

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

[0043] S1: Blending and drying of raw materials: First, add 250g of hindered amine light stabilizer into an aqueous solution into 12.5kg of filler masterbatch powder, stir and dry to prepare a processed filler masterbatch, mix 100kg of polypropylene particles, 30g of diphenylbenzene Acetylene, 20g of bis-octaneamine, 7g of aromatic phosphite, 0.03g of hydroquinone, the treated filler master batch, and 100g of bis-(p-methylbenzylidene)sorbitol were put into a drying mixer and stirred, and the drying temperature was 80 -100℃, drying time is 30-50 minutes;

[0044] S2: wire drawing process: the material after blending and drying in step S1 enters the extruder, is heated by the barrel and sheared by the screw and the barrel, and is extruded into a film through the die head, and the heating temperature is 180 ° C , and then cooled by water at 35 °C, cut into embryonic silk with a b...

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Abstract

The invention provides a production process of an anti-aging plastic woven bag. The production process comprises the following steps that S1, polypropylene particles, diphenylacetylene, bis(octane)amine, aromatic phosphite, a filling master batch, a light stabilizer, a nucleating agent and hydroquinone are put into a drying and stirring machine to be stirred and then to be dried; S2, the materialssubjected to the S1 step are fed into an extruder, a thin film is produced through heating by a material cylinder, shearing by a screw and a machine cylinder and forming and extruding by a die head,the thin film is cut into a blank filaments by using a blade after being cooled by water, the blank filaments are stretched to form flat filaments through a drying plate, and the flat filaments are subjected to heat setting, and then are wounded into a filament coil; S3, the coiled flat filaments are woven into a cylindrical woven bag, and winding is carried out by a winding machine; S4, a trademark and a production annotation are printed; S5, the cylindrical woven bag is cut into a woven bag by using a cutting machine; and S6, a bag opening is sewed, and the woven bag is formed. The providedproduction process of the anti-aging plastic woven bag aims to improve the anti-aging capability and the anti-oxidation capability of an existing plastic woven bag, prolong the service life of the existing woven bag, reduce the processing difficulty, and save the cost.

Description

technical field [0001] The invention relates to the technical field of plastic woven bag processing, in particular to a production process of an aging-resistant plastic woven bag. Background technique [0002] Plastic woven bags are made of polypropylene as the main raw material, which is extruded, drawn, and then woven, woven, and bagged. Polypropylene is a translucent, semi-crystalline thermoplastic with high strength, good insulation, low water absorption, high heat-setting temperature, low density and high crystallinity. It is the main raw material for making woven bags. However, polypropylene materials are prone to aging and degradation, losing their original transparency, yellowing, fading, or even completely chalking on the surface. The damage of natural oxidation to polypropylene woven bags is considerable. It not only affects the appearance of the woven bags, but also with the deepening of oxidation, the woven bags will gradually lose their original tensile strengt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D22/00C08L23/12C08K5/01C08K5/17C08K5/526B29K105/00B29K23/00
CPCB29D22/003B29K2023/12B29K2105/0044C08K5/01C08K5/17C08K5/526C08L23/12
Inventor 张爱军张峰
Owner ZAOYANG DONGHANG WOVEN PRINTING CO LTD
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