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Sewing thread with high softening point, preparation method and application of same

A high softening point, sewing thread technology, applied in the field of sewing thread, can solve the waste, loss, time-consuming and other problems of polypropylene cloth recycled materials, and achieve the effect of simple and feasible preparation process, good compatibility characteristics, and outstanding optical properties

Inactive Publication Date: 2013-04-03
ZHONGSHAN KECHENG CHEM FIBER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a recycling method is time-consuming and laborious; and because the separation process easily causes unnecessary waste and loss of polypropylene cloth recycled materials, this is also a key technical problem currently restricting the field of polypropylene cloth recycling
[0005] In summary, there are currently no reports on the preparation of sewing threads with high softening points.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] In the mixer, successively add 3kg polypropylene, 2kg poly-4-methyl-1-pentene, 100g antioxidant 1010, 50g zinc stearate, and the mixing speed of the mixer is 100rpm; obtain the mixture. The above-mentioned mixture is fed into a twin-screw melt-spinning machine for melt-extrusion and spinning to obtain a sewing thread with a high softening point. Among them, the heating temperature of the twin-screw melt spinning machine is 180°C, 200°C, 220°C, 240°C, 240°C, 200°C; ~6 times, the temperature of the hot plate is 60℃~80℃, and the temperature of the hot plate is 110℃~130℃; a sewing thread with a high softening point is obtained.

[0027] In this example, polypropylene / poly-4-methyl-1-pentene was melt blended to prepare a sewing thread with a high softening point. Poly-4-methyl-1-pentene is a new type of polyolefin material with outstanding optical properties, mechanical properties, high temperature resistance and electrical properties. The melting point of poly-4-methyl-1-...

Embodiment 2

[0029] In the mixer, 2.5kg of polypropylene, 2.5kg of poly-4-methyl-1-pentene, 80g of antioxidant 1010, and 20g of zinc stearate were successively added, and the mixing speed of the mixer was 100rpm; a mixture was obtained. The above-mentioned mixture is fed into a twin-screw melt-spinning machine for melt-extrusion and spinning to obtain a sewing thread with a high softening point. The heating temperature of the twin-screw melt spinning machine is 180°C, 200°C, 230°C, 250°C, 250°C, 210°C, the melt pressure is 8 MPa ~ 15MPa, the spinning speed is 300m / min, and the draft ratio is 3~4 times, the temperature of the hot plate is 60°C~80°C, and the temperature of the hot plate is 110°C~130°C; a sewing thread with a high softening point is obtained.

[0030] The properties of the resulting sewing thread are shown in the table below:

[0031] project Breaking strength / (g / d) Softening temperature (°C) Example 1 4.7 128 Example 2 4.2 140

[00...

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Abstract

The invention discloses a sewing thread with a high softening point, wherein the sewing thread comprises polypropylene, poly(4-methyl-1-pentene), an antioxidant and a heat stabilizer. The invention relates to the technical field of fiber textile; and the prepared sewing thread with the high softening point is applicable to the field of textile sewing, has a high softening point property, satisfies various industrial sewing, particularly requirements on high-speed sewing, and effectively solves a recycling difficulty at the same time.

Description

technical field [0001] The invention relates to the technical field of fiber textiles, in particular to a sewing thread with a high softening point and its preparation method and application. Background technique [0002] Sewing thread refers to the yarn used to join different parts together through seams during the forming process of products such as clothing, upholstery, air-supported fabric structures and geotextiles. As the main material in seaming technology, sewing thread is widely used in fields such as industry, agriculture, medical treatment, and national defense technology. As an industrial sewing thread used in industry, its comprehensive performance is crucial to the realization of seams. With the rise of industrial textiles, the variety and amount 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 in seaming ...

Claims

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Application Information

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IPC IPC(8): D01F8/06D01F1/10D01D5/08D01D5/12
Inventor 傅峰林腾飞
Owner ZHONGSHAN KECHENG CHEM FIBER
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