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Preparation method of toughened plastic woven bag

A plastic woven bag and toughening technology, which is applied in the manufacture of rayon, textiles and paper, household components, etc., can solve the problems of easy aging, poor toughness, and low strength, and achieve improved peel strength, reduced ratio, and enhanced resistance The effect of the capacity for external forces

Inactive Publication Date: 2019-12-03
ZAOYANG DONGHANG WOVEN PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, plastic woven bags are prone to problems such as hardening, brittleness, peeling, peeling, and fracture when the temperature is low in winter, and aging, corrosion, poor toughness, and low strength are prone to occur when the temperature is high in summer and the penetration of ultraviolet rays is strong. question

Method used

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  • Preparation method of toughened plastic woven bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method of a toughened plastic woven bag, comprising the steps of:

[0027] S1: Preparation of flat yarn: 10kg of polypropylene raw material, 0.5kg of filler masterbatch nano-calcium carbonate, 0.3kg of toughening agent butoxyethyl acetate are dried and put into the extruder, extruded into a film through a die, and then passed through After water cooling, the polypropylene film is cut, and the polypropylene nascent flat yarn is thermally drawn and heat-set to prepare the finished polypropylene flat yarn;

[0028] S2: Weaving: The finished polypropylene flat yarn is warp and weft, and the woven roll is woven on a circular loom, and then cut according to regulations;

[0029] S3: Prepare the inner film bag body: 500g of hot melt adhesive layer raw material EVA resin, 100g of butyl acrylate, 50g of hydroxypropyl acrylate, 30g of ethylhexyl methacrylate, and 10g of crosslinking agent glycidyl methacrylate And toughening layer raw material polyethylene 500g, ad...

Embodiment 2

[0034] A preparation method of a toughened plastic woven bag, comprising the steps of:

[0035] S1: Preparation of flat yarn: 10kg of polypropylene raw material, 1kg of filler masterbatch nano-calcium carbonate, 0.5kg of toughening agent butoxyethyl acetate are dried and put into the extruder, extruded into a film through die forming, and then passed through water After cooling, the polypropylene film is cut, and the polypropylene nascent flat wire is thermally drawn and heat-set to prepare the finished polypropylene flat wire;

[0036] S2: Weaving: The finished polypropylene flat yarn is warp and weft, and the woven roll is woven on a circular loom, and then cut according to regulations;

[0037] S3: Preparation of the inner film bag body: 600g of hot melt adhesive layer raw material EVA resin, 150g of butyl acrylate, 100g of hydroxypropyl acrylate, 80g of ethylhexyl methacrylate, and 50g of crosslinking agent glycidyl methacrylate And toughening layer raw material polyethyl...

Embodiment 3

[0042] A preparation method of a toughened plastic woven bag, comprising the steps of:

[0043] S1: Preparation of flat yarn: 10kg of polypropylene raw material, 0.8kg of filler masterbatch nano-calcium carbonate, 0.4kg of toughening agent butoxyethyl acetate are dried and put into the extruder, extruded into a film through a die, and then passed through After water cooling, the polypropylene film is cut, and the polypropylene nascent flat yarn is thermally drawn and heat-set to prepare the finished polypropylene flat yarn;

[0044] S2: Weaving: The finished polypropylene flat yarn is warp and weft, and the woven roll is woven on a circular loom, and then cut according to regulations;

[0045] S3: Prepare the inner film bag body: 550g of hot melt adhesive layer raw material EVA resin, 120g of butyl acrylate, 80g of hydroxypropyl acrylate, 50g of ethylhexyl methacrylate, and 20g of crosslinking agent glycidyl methacrylate And toughening layer raw material polyethylene 550g, ad...

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Abstract

The invention provides a preparation method of a toughened plastic woven bag, which comprises the following steps: S1, drying a polypropylene raw material, a filling master batch and a toughening agent, putting them into an extruder, molding and extruding them into a film by a die head, and preparing polypropylene finished flat filaments through traction; S2, weaving a weaving cylinder yardage roll on a circular weaving machine, and then carrying out tailoring according to the specification; S3, putting the hot melt adhesive layer raw material and the toughening layer raw material into a double-layer co-extrusion blow molding film machine to be heated and melted, and then forming a cylindrical bag body with two layers of laminated films through blow molding, wherein the outer layer is a hot melt adhesive layer and the inner layer is a toughening layer; S4, connecting the cylindrical woven bag to the inner film-coated bag body in a sleeving mode; S5, feeding the woven bag sleeved with the inner covering film into a heating oven, wherein the hot melt adhesive layer is heated to be melted, attached to the interior of the plastic woven bag and pressed; S6, carrying out cutting, printing, sewing and the like, and preparing the finished plastic woven bag. The plastic woven bag provided by the invention has the advantages of strong tensile tearing resistance, high toughness and firm adhesion of the inner covering film.

Description

technical field [0001] The invention relates to the technical field of plastic woven bag production technology, in particular to a preparation method of a toughened plastic woven bag. Background technique [0002] Plastic woven bags are widely used in product packaging in the fields of cement, fertilizers, chemicals, pipes, monofilaments, wires and cables, and daily necessities. However, plastic woven bags are prone to problems such as hardening, brittleness, peeling, peeling, and fracture when the temperature is low in winter, and aging, corrosion, poor toughness, and low strength are prone to occur when the temperature is high in summer and the penetration of ultraviolet rays is strong. question. [0003] Therefore need to produce a kind of plastic woven bag that anti-stretch tearing performance is strong, toughness is high, and inner film bonding is firm. Contents of the invention [0004] The object of the present invention is to provide a plastic woven bag with stro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C48/10B29C48/21B29C65/48D01F6/46D01F1/10C08L23/06C08K3/34C08K5/134C09J4/02C09J4/06B29L31/00
CPCB29C65/4815B29C66/61B29L2031/7128B29C48/0021B29C48/10B29C48/21C08K3/346C08K5/1345C09J4/06D01F1/10D01F6/46C08L23/06
Inventor 张爱军张峰陈颜君
Owner ZAOYANG DONGHANG WOVEN PRINTING CO LTD
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