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High-strength composite sewing thread and preparing method thereof

A sewing thread, high-strength technology, applied in the direction of melt spinning, conjugated synthetic polymer artificial filament, yarn, etc., can solve the problems of low tensile strength, melting, blocking needle holes, etc., and achieve wear resistance and high temperature resistance Excellent performance, reduce melt reflux degradation, and reduce moisture regain

Inactive Publication Date: 2016-06-22
WUJIANG ZHENYU SEWING EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary sewing thread has poor heat resistance and wear resistance, and it is easy to soften or even break. Therefore, ordinary sewing thread is not suitable for high-speed sewing and other industrial sewing occasions.
Existing industrial sewing threads have problems such as low tensile strength, poor folding and wear resistance, high temperature resistance and general chemical resistance. When used at high speed, they are prone to melting, pinhole blockage, thread breakage and other phenomena, which cannot meet some special requirements. The use requirements of the place, such as the use in some application environments with high requirements for strength and corrosion resistance

Method used

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  • High-strength composite sewing thread and preparing method thereof
  • High-strength composite sewing thread and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1: A high-strength composite sewing thread, comprising the following raw materials in parts by weight: 40 parts of polypropylene resin, 1 part of polyethylene resin, 15 parts of poly-4-methyl-1-pentene, 0.05 parts of whitening agent, 3 parts of reinforcing fiber, 0.5 parts of auxiliary agent.

[0015] In this example, the whitening agent is whitening agent AD; the auxiliary agent is zinc stearate, which is used to improve the processability of the material during extrusion and spinning; the reinforcing fiber is silane The bamboo fiber pretreated by the coupling agent is used to improve the interfacial compatibility when it is compounded with the resin, and the fineness of the bamboo fiber is 100-800 mesh.

[0016] The preparation method of the high-strength composite sewing thread comprises the following steps: placing polypropylene resin, polyethylene resin, poly-4-methyl-1-pentene and reinforcing fibers in a banbury mixer for 15 minutes, banburying The temper...

Embodiment 2

[0017] Example 2: A high-strength composite sewing thread, comprising the following raw materials in parts by weight: 60 parts of polypropylene resin, 8 parts of polyethylene resin, 25 parts of poly-4-methyl-1-pentene, 0.10 parts of whitening agent, 8 parts of reinforcing fiber, 2 parts of auxiliary agent.

[0018] In the present embodiment, described whitening agent is whitening agent AD; Described auxiliary agent is calcium stearate; Described reinforcing fiber is the bamboo fiber of pretreatment through silane coupling agent, and the fineness of described bamboo fiber is 100-800 mesh.

[0019] The preparation method of the high-strength composite sewing thread comprises the following steps: placing polypropylene resin, polyethylene resin, poly-4-methyl-1-pentene and reinforcing fibers in a banbury mixer for 20 minutes, and banburying The smelted sample is pulverized and uniformly mixed with brighteners and auxiliary agents to obtain a premix; the premix is ​​placed in a tw...

Embodiment 3

[0020] Embodiment 3: A high-strength composite sewing thread, comprising the following raw materials in parts by weight: 50 parts of polypropylene resin, 5 parts of polyethylene resin, 20 parts of poly-4-methyl-1-pentene, 0.06 parts of whitening agent, 5 parts of reinforcing fiber, 1 part of auxiliary agent.

[0021] In the present embodiment, described whitening agent is whitening agent AD; Described auxiliary agent is zinc stearate; Described reinforcing fiber is the bamboo fiber of pretreatment through silane coupling agent, and the fineness of described bamboo fiber is 100-800 mesh.

[0022] The preparation method of the high-strength composite sewing thread comprises the following steps: placing polypropylene resin, polyethylene resin, poly-4-methyl-1-pentene and reinforcing fibers in an internal mixer for internal mixing for 18 minutes, and mixing The smelted sample is pulverized and uniformly mixed with brighteners and auxiliary agents to obtain a premix; the premix is...

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Abstract

The invention discloses a high-strength composite sewing thread. A preparing method includes the specific steps that weighed polypropylene resin, weighed polyethylene resin, weighed poly-4-methyl-1-pentene and weighed reinforcing fibers are put into an internal mixer to be internally mixed for 15-20 min, the internally-mixed sample is smashed, the smashed sample, a brightening agent in a certain weight ratio and an assistant in a certain weight ratio are mixed to be even, and a premix compound is obtained; the a premix compound is put into a double-screw melt spinning machine to be extruded, spun and formed to obtain the composite sewing thread. According to the high-strength composite sewing thread and the preparing method thereof, the high-strength composite sewing thread is obtained in the mode that the resin and the reinforcing fibers are synthesized, and the obtained sewing thread is high in strength, excellent in abrasion performance and high temperature resistance and suitable for wide application in the industrial field.

Description

technical field [0001] The invention relates to the technical field of sewing materials, in particular to a high-strength composite sewing thread and a preparation method thereof. Background technique [0002] Sewing thread refers to the thread used for sewing textile materials, leather products, plastics and sewing books and periodicals. Sewing thread has the characteristics of sewability and durability, and has dual functions of utility and decoration. As an industrial sewing thread used in industry, its comprehensive performance is very important to the sewing effect. With the rise of industrial textiles, the variety and quantity of industrial sewing threads have also increased significantly. Due to the special use of industrial sewing products, more stringent requirements have been put forward for the performance of sewing threads. [0003] With the innovation of textile technology, the industry's demand for industrial sewing threads, especially high-strength sewing th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/46D01D5/08D01F8/06D01F1/10
CPCD02G3/46D01D5/08D01F1/10D01F8/06
Inventor 胡粉义
Owner WUJIANG ZHENYU SEWING EQUIP
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