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Method for manufacturing high-strength glass fiber composite sewing threads

A technology of glass fiber and manufacturing method, which is applied in the field of sewing thread manufacturing, can solve the problems of complicated manufacturing process and high cost, and achieve the effect of simple method, low cost and improved strength

Active Publication Date: 2015-01-14
CHANGSHU YAOXING FIBERGLASS INSULATION PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this composite glass fiber sewing thread has good flexibility, folding resistance, wear resistance and other characteristics, its production process is complicated and the cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The present embodiment provides a kind of manufacturing method of high-strength glass fiber composite sewing thread, and it comprises the following steps successively:

[0019] (a) Select 40tex glass fiber and 18tex flame-retardant acrylic fiber with an oxygen index greater than 28;

[0020] (b) Twisting the glass fibers every 3 strands to form a glass fiber filament;

[0021] (c) Twisting the acrylic fiber every 5 strands to form an acrylic fiber filament;

[0022] (d) doubling the glass fiber filaments and the acrylic fiber filaments according to the mass ratio of 33:67, and then twisting to form a 20tex composite yarn;

[0023] (e) Twisting the composite yarn every 3 strands into a single yarn is a high-strength glass fiber composite sewing thread. The twist of the final composite sewing thread is 250, the tensile breaking strength is 65N, and the high temperature resistance is 300 ℃.

Embodiment 2

[0025] The present embodiment provides a kind of manufacturing method of high-strength glass fiber composite sewing thread, and it comprises the following steps successively:

[0026] (a) Select 80tex glass fiber and 26tex flame-retardant acrylic fiber with an oxygen index greater than 28;

[0027] (b) Twisting the glass fibers every 5 strands to form a glass fiber filament;

[0028] (c) Twisting the acrylic fiber every 7 strands to form an acrylic fiber filament;

[0029] (d) doubling the glass fiber filaments and the acrylic fiber filaments at a mass ratio of 1:1, and then twisting to form a 30tex composite yarn;

[0030] (e) Twisting the composite yarn every 8 strands into a single yarn is a high-strength glass fiber composite sewing thread. The twist of the final composite sewing thread is 400, the tensile breaking strength is 70N, and the high temperature resistance is 350 ℃.

Embodiment 3

[0032] The present embodiment provides a kind of manufacturing method of high-strength glass fiber composite sewing thread, and it comprises the following steps successively:

[0033] (a) Select 50tex glass fiber and 20tex flame-retardant acrylic fiber with an oxygen index greater than 28;

[0034] (b) Twisting the glass fibers every 4 strands to form a glass fiber filament;

[0035] (c) Twisting the acrylic fiber every 6 strands to form an acrylic fiber filament;

[0036] (d) doubling the glass fiber filaments and the acrylic fiber filaments at a mass ratio of 2:3, followed by twisting to form a 25tex composite yarn;

[0037] (e) Twisting the composite yarn every 5 strands into a single yarn is a high-strength glass fiber composite sewing thread. The twist of the final composite sewing thread is 350, the tensile breaking strength is 68N, and the high temperature resistance is 330 ℃.

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Abstract

The invention relates to a method for manufacturing high-strength glass fiber composite sewing threads. The method sequentially comprises the following steps: (a) selecting 40-80tex glass fibers and 18-26tex acrylic fibers; (b) twisting every 3-5 strands of glass fibers to form a glass fiber filament; (c) twisting every 5-7 strands of acrylic fibers to form an acrylic fiber filament; (d) doubling the glass fiber filaments and the acrylic fiber filaments, and twisting to form 20-30tex composite yarns; and (e) performing second twist on every 3-8 strands of composite yarns to form single yarns, namely the high-strength glass fiber composite sewing threads. On one hand, the glass fibers and the acrylic fibers are subjected to doubling and twisting to form the composite yarns, and the composite yarns can overcome the defects that the glass fibers are brittle and low in wear resistance and the like, so that the strength of the composite yarns is improved; on the other hand, the method is simple and easy to operate, so the prepared composite sewing threads are low in cost and have the advantage of market competition.

Description

technical field [0001] The invention belongs to the field of manufacturing sewing threads, and relates to a method for manufacturing sewing threads, in particular to a method for manufacturing high-strength glass fiber composite sewing threads. Background technique [0002] Glass fiber sewing thread is widely used in sewing high temperature resistant fabrics, dust filter bags, electrical insulation materials, heat insulation materials, cable fillers, fireproof materials, wicks, seals, winding heating wires and heating elements, etc. Glass fiber sewing thread can be used on industrial high-speed sewing machines to sew various filter bags; to sew acid-resistant, alkali-resistant and other corrosion-resistant fabrics, and can also be used for a long time at 260 ° C, and can meet the requirements of steel, carbon black, metallurgy, cement, etc. And other industrial sectors need to sew filter bags. Existing ordinary sewing threads have problems such as low tensile strength, poo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/46D02G3/18D02G3/04D02G3/28
Inventor 金喜春
Owner CHANGSHU YAOXING FIBERGLASS INSULATION PROD