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A sewing thread and high-strength technology, applied in the field of sewing materials, can solve the problems of low breaking strength and high strength CV rate of sewing threads, and achieve the effects of low strength CV rate, high breaking strength and reducing strength CV rate.
Inactive Publication Date: 2020-01-31
佛山金丝路线业有限公司
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[0003] However, the existing sewing thread has low breaking strength and high CV ratio, and it is difficult to meet the performance requirements of the society for sewing thread. Therefore, there is still room for improvement.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Embodiment 1
[0058] A preparation method for high-strength sewing thread, comprising the following steps:
[0059] S1, prepare filament, specifically as follows:
[0060] Add polytetrafluoroethylene resin 55kg, polypropylene resin 30kg, 5-amino-3-cyclohexyl-1-methyl-1H-pyrazole-4-formonitrile 1.5kg, 2-ethanediol to the twin-screw melt spinning machine Base-4-methyl-6-piperazine-1-pyrimidine 0.3kg, polyoxyethyl glyceryl ether 1kg, mix uniformly to form a mixture, and control the temperature of melt extrusion to 235°C so that the mixture is melted and extruded to form filament.
[0061] S2, prepare high-strength sewing thread, specifically as follows:
[0062] The polyester fine denier DTY and the filament prepared in step S1 are first twisted and retwisted to form a strand embryo yarn, wherein the ratio of the polyester fine denier DTY to the filament is 4:1, and the polyester fine denier DTY is wrapped On the periphery of the filament, it is dyed, and finally dried to obtain a high-stre...
Embodiment 2
[0064] The difference from Example 1 is that in step S1, 57.5 kg of polytetrafluoroethylene resin, 27.5 kg of polypropylene resin, 5-amino-3-cyclohexyl-1-methyl-1H- Pyrazole-4-carbonitrile 2kg, 2-ethyl-4-methyl-6-piperazine-1-pyrimidine 0.4kg, polyoxyethyl glyceryl ether 0.5kg.
Embodiment 3
[0066] The difference from Example 1 is that in step S1, 60 kg of polytetrafluoroethylene resin, 25 kg of polypropylene resin, 5-amino-3-cyclohexyl-1-methyl-1H-pyrazole are added to the twin-screw melt spinning machine - 1 kg of 4-formazine, 0.5 kg of 2-ethyl-4-methyl-6-piperazine-1-pyrimidine, and 0.75 kg of polyoxyethyl glycerol ether.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract
The invention relates to the technical field of sewing materials, and provides a high-strength sewing thread, aiming at the problem of low strength of existing sewing threads. The high-strength sewingthread comprises a filament and a fine-denier polyester DTY (draw texturing yarn) covering the filament. The filament comprises, by mass, 55-60 parts of polytetrafluoroethylene resin, 25-30 parts ofpolypropylene resin, 1-2 parts of 5-amino-3-cyclohexyl-1-methyl-1H-pyrazole-4-carbonitrile, 0.3-0.5 part of 2-ethyl-4-methyl-6-piperazine-1-pyrimidine and 0.5-1 part of polyoxyethylene glyceryl ether.The high-strength sewing thread has the advantages that through interaction among the 5-amino-3-cyclohexyl-1-methyl-1H-pyrazole-4-carbonitrile, the 2-ethyl-4-methyl-6-piperazine-1-pyrimidine and thepolyoxyethylene glyceryl ether, the breaking strength of the filament is improved, and the strong CV rate of the filament is reduced, so that the strong CV rate of the obtained sewing thread is lowerwhile the breaking strength thereof is higher; the sewing thread easily meets requirements of the society, and the application range of the sewing thread is widened.
Description
technical field [0001] The invention relates to the technical field of sewing materials, more specifically, it relates to a high-strength sewing thread. Background technique [0002] Sewing thread is the thread required for knitted clothing products. According to the raw materials, sewing thread can be divided into three categories: natural fiber, synthetic fiber sewing thread and mixed sewing thread. With the development of the polyester industry, more and more sewing threads use pure polyester fibers as their raw materials. [0003] However, the existing sewing thread has low breaking strength and high CV rate of strength, and it is difficult to meet the performance requirements of the society for sewing thread. Therefore, there is still room for improvement. Contents of the invention [0004] In view of the deficiencies in the prior art, the first purpose of the present invention is to provide a high-strength sewing thread, which has the advantages of increasing the br...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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