阅读说明：本技术 高强度缝纫线 (High-strength sewing thread ) 是由 胡晋 何绍颜 于 2019-11-07 设计创作，主要内容包括：本发明涉及缝纫材料技术领域,针对现有的缝纫线强度较低的问题,提供了一种高强度缝纫线,包括长丝以及包覆长丝的涤纶细旦DTY,其中,长丝包括以下质量份数的组分：聚四氟乙烯树脂55-60份；聚丙烯树脂25-30份；5-氨基-3-环己基-1-甲基-1H-吡唑-4-甲睛1-2份；2-乙基-4-甲基-6-哌嗪-1-嘧啶0.3-0.5份；聚氧乙基甘油醚0.5-1份。通过加入5-氨基-3-环己基-1-甲基-1H-吡唑-4-甲睛、2-乙基-4-甲基-6-哌嗪-1-嘧啶与聚氧乙基甘油醚的互相协同配合,有利于增强长丝的断裂强度,还有利于降低长丝的强力CV率,使得制备所得的缝纫线的断裂强度更高的同时使得其强力CV率更低,同时,使得缝纫线更容易满足社会需求,有利于扩大缝纫线的适用范围。(The invention relates to the technical field of sewing materials, and provides high-strength sewing threads aiming at the problem of low strength of the existing sewing threads, which comprise filaments and polyester fine denier DTY (draw textured yarn) coating the filaments, wherein the filaments comprise, by mass, 55-60 parts of polytetrafluoroethylene resin, 25-30 parts of polypropylene resin, 1-2 parts of 5-amino-3-cyclohexyl-1-methyl-1H-pyrazole-4-methyl-nitrile, 0.3-0.5 part of 2-ethyl-4-methyl-6-piperazine-1-pyrimidine and 0.5-1 part of polyoxyethylene glyceryl ether, and the breaking strength of the filaments is favorably enhanced and the strong CV rate of the sewing threads is favorably reduced by adding 5-amino-3-cyclohexyl-1-methyl-1H-pyrazole-4-methyl-nitrile, 2-ethyl-4-methyl-6-piperazine-1-pyrimidine and the polyoxyethylene glyceryl ether in a synergistic fit manner, so that the breaking strength of the prepared sewing threads is higher and the strong CV rate of the sewing threads is lower, and the social requirements are easily met and the applicable range of the sewing threads is favorably expanded.)

The high-strength sewing thread is characterized by comprising a filament and polyester fine denier DTY (draw textured yarn) coating the filament, wherein the filament comprises the following components in parts by mass:

55-60 parts of polytetrafluoroethylene resin;

25-30 parts of polypropylene 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;

0.5-1 part of polyoxyethylene glycerol ether.

2. The high strength sewing thread of claim 1, wherein: the paint also comprises the following components in parts by mass:

0.3-0.5 part of zonisamide;

0.5-1 part of 2-methylsulfonyl amino benzimidazole.

3. The high-strength sewing thread of any of claims 1-2, further comprising the following components in parts by weight:

1-2 parts of graphene.

4. The high-strength sewing thread of any of claims 1-2, further comprising the following components in parts by weight:

1.5-2 parts of pineapple fiber.

5. The high-strength sewing thread of any of claims 1-2, further comprising the following components in parts by weight:

0.5-1 part of stearyl alcohol.

6. The high-strength sewing thread of any of claims 1-2, further comprising the following components in parts by weight:

0.3-0.5 part of 3-aminopyrazole.

A method of preparing high strength sewing thread as claimed in any of claims 1 to 6 to in , comprising the steps of:

s1, preparing filaments: mixing the components of the filaments uniformly and melt extruding to form filaments;

s2, preparing high-strength sewing threads: and (5) primarily twisting and secondarily twisting the polyester fine denier DTY and the filament prepared in the step (S1) to form a strand yarn, wrapping the polyester fine denier DTY on the periphery of the filament, dyeing, and finally drying to obtain the high-strength sewing thread.

8. The method for preparing a high strength sewing thread according to claim 7, wherein: in the step S1, the melt extrusion temperature of the filaments is controlled to be 220-230 ℃.

9. The method for preparing a high strength sewing thread according to claim 7, wherein: the ratio of the polyester fine denier DTY to the filament yarn in the step S2 is 3: 2.

Technical Field

The invention relates to the technical field of sewing materials, in particular to high-strength sewing threads.

Background

The sewing thread is a thread required by knitted clothing products, and can be divided into three types of natural fiber, synthetic fiber sewing thread and mixed sewing thread according to raw materials. With the development of the polyester industry, sewing threads are increasingly made of pure polyester fibers.

However, the conventional sewing thread has low breaking strength and high strong CV ratio, and it is difficult to satisfy the social performance requirements for sewing threads, and therefore, there is still room for improvement.

Disclosure of Invention

In view of the disadvantages of the prior art, an th object of the present invention is to provide high strength sewing threads, which have advantages of improving the breaking strength of the sewing threads and reducing the strong CV ratio of the sewing threads.

The second purpose of the present invention is to provide a method for preparing kinds of high-strength sewing threads, which has the advantages of improving the breaking strength of the prepared sewing threads and being beneficial to reducing the strong CV rate of the sewing threads.

In order to achieve the th object, the invention provides the following technical solutions:

high-strength sewing threads comprise filaments and polyester fine denier DTY (draw textured yarn) for coating the filaments, wherein the filaments comprise the following components in parts by mass:

55-60 parts of polytetrafluoroethylene resin;

25-30 parts of polypropylene 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;

0.5-1 part of polyoxyethylene glycerol ether.

By adopting the technical scheme, the 5-amino-3-cyclohexyl-1-methyl-1H-pyrazole-4-methyl-nitrile, the 2-ethyl-4-methyl-6-piperazine-1-pyrimidine and the polyoxyethylene glyceryl ether are added to cooperate with each other, so that the breaking strength of the filament is enhanced, and the strong CV rate of the filament is reduced, so that the prepared sewing thread has higher breaking strength and lower strong CV rate, the sewing thread can meet social requirements more easily, and the application range of the sewing thread is expanded.

The invention is further set in to comprise the following components in parts by mass:

0.3-0.5 part of zonisamide;

0.5-1 part of 2-methylsulfonyl amino benzimidazole.

By adopting the technical scheme, the synergistic cooperation of the zonisamide and the 2-methylsulfonylaminobenzimidazole is added, so that the synergistic cooperation of the 5-amino-3-cyclohexyl-1-methyl-1H-pyrazole-4-methyl-nitrile, the 2-ethyl-4-methyl-6-piperazine-1-pyrimidine and the polyoxyethylene glyceryl ether is favorably promoted, the breaking strength of the filament is favorably improved, the strong CV rate of the filament is reduced, the breaking strength of the prepared sewing thread is stronger, the strong CV rate of the prepared sewing thread is lower, and the sewing thread can better meet social requirements.

The invention is further set in to comprise the following components in parts by mass:

1-2 parts of graphene.

By adopting the technical scheme, the toughness of the filament is favorably and better enhanced by adding the graphene, so that the toughness of the prepared sewing thread is favorably enhanced, the sewing thread is more difficult to break when being subjected to pulling force, the breaking strength of the sewing thread is favorably improved, the powerful CV rate of the sewing thread is favorably reduced, and the application range of the sewing thread is more .

The invention is further set in to comprise the following components in parts by mass:

1.5-2 parts of pineapple fiber.

By adopting the technical scheme, the pineapple fiber is added, so that the toughness of the filament can be better improved, the breaking strength of the prepared sewing thread is improved, and the strong CV rate of the sewing thread is reduced, thereby being beneficial to expanding the application range of the sewing thread and enabling the sewing thread to be more easily suitable for social requirements.

The invention is further set in to comprise the following components in parts by mass:

0.5-1 part of stearyl alcohol.

By adopting the technical scheme, the 5-amino-3-cyclohexyl-1-methyl-1H-pyrazole-4-methyl-nitrile, 2-ethyl-4-methyl-6-piperazine-1-pyrimidine and the polyoxyethylene glyceryl ether are favorably promoted to be better cooperated and matched with each other by adding the stearyl alcohol, so that the breaking strength of the filament is favorably improved, the strong CV rate of the filament is favorably reduced, the prepared sewing thread is further not easy to break, and the sewing thread is favorably meet social requirements better.

The invention is further set in to comprise the following components in parts by mass:

0.3-0.5 part of 3-aminopyrazole.

By adopting the technical scheme, the 3-aminopyrazole is added, so that the mutual synergistic cooperation of the 5-amino-3-cyclohexyl-1-methyl-1H-pyrazole-4-methyl cyanide, the 2-ethyl-4-methyl-6-piperazine-1-pyrimidine and the polyoxyethylene glyceryl ether is favorably promoted, the breaking strength of the filament is favorably improved, the strong CV rate of the filament is reduced, the prepared sewing thread is not easy to break, and the sewing thread is favorably suitable for social needs.

In order to achieve the second object, the invention provides the following technical scheme:

A method for preparing high-strength sewing thread, comprising the following steps:

s1, preparing filaments: mixing the components of the filaments uniformly and melt extruding to form filaments;

s2, preparing high-strength sewing threads: and (5) primarily twisting and secondarily twisting the polyester fine denier DTY and the filament prepared in the step (S1) to form a strand yarn, wrapping the polyester fine denier DTY on the periphery of the filament, dyeing, and finally drying to obtain the high-strength sewing thread.

By adopting the technical scheme, the dacron fine denier DTY and the filament are mutually cooperated to form the sewing thread, so that the breaking strength of the sewing thread is improved better, the powerful CV rate of the sewing thread is reduced better, the sewing thread is not easy to break, and the social requirements of the sewing thread are met better.

The invention is further that the melt extrusion temperature of the filament is controlled to 220-230 ℃ in the step S1.

By adopting the technical scheme, the melt extrusion temperature of the filaments is controlled, so that the components are favorably cooperated with each other better to play a role, the breaking strength of the filaments is favorably improved, meanwhile, the powerful CV rate of the filaments is favorably reduced, the breaking strength of the prepared sewing thread is favorably improved, the powerful CV rate of the prepared sewing thread is favorably reduced, and the performance of the sewing thread is more suitable for social requirements.

The invention further is arranged that the ratio of the terylene fine denier DTY to the filament in the step S2 is 3: 2.

By adopting the technical scheme, the proportion of the using amount of the polyester fine denier DTY to the using amount of the filament is controlled, so that the polyester fine denier DTY and the filament are favorably cooperated with each other better, the breaking strength of the prepared sewing thread is favorably improved, the strong CV rate of the prepared sewing thread is favorably reduced, and the prepared sewing thread is more suitable for social needs.

In conclusion, the invention has the following beneficial effects:

1. the 5-amino-3-cyclohexyl-1-methyl-1H-pyrazole-4-methyl-nitrile, the 2-ethyl-4-methyl-6-piperazine-1-pyrimidine and the polyoxyethylene glyceryl ether are added to cooperate with each other, so that the breaking strength of the filament is enhanced, the strong CV rate of the filament is reduced, the breaking strength of the prepared sewing thread is higher, the strong CV rate of the sewing thread is lower, the sewing thread can meet social requirements more easily, and the application range of the sewing thread is expanded;

2. the synergistic cooperation of the zonisamide and the 2-methylsulfonylaminobenzimidazole is added, so that the synergistic cooperation of the 5-amino-3-cyclohexyl-1-methyl-1H-pyrazole-4-carbonitrile, the 2-ethyl-4-methyl-6-piperazine-1-pyrimidine and the polyoxyethylene glyceryl ether is favorably promoted, the breaking strength of the filament is favorably improved, the strong CV rate of the filament is reduced, the breaking strength of the prepared sewing thread is stronger, the strong CV rate is lower, and the sewing thread can better meet social requirements;

3. by adding stearyl alcohol, the 5-amino-3-cyclohexyl-1-methyl-1H-pyrazole-4-methyl-nitrile, the 2-ethyl-4-methyl-6-piperazine-1-pyrimidine and the polyoxyethylene glyceryl ether are favorably promoted to be better cooperated with each other, the breaking strength of the filament is favorably improved, the strong CV rate of the filament is favorably reduced, the prepared sewing thread is less prone to breaking, and the sewing thread is favorably capable of better meeting social requirements.

Drawings

FIG. 1 is a process flow diagram of a method of preparing a high strength sewing thread according to the present invention.

Detailed Description

The present invention will be described in further detail in with reference to the following drawings and examples.

In the following examples, polyester fine denier DTY from Shaoxing-like textile technology, Inc. was used.

In the following examples, the polytetrafluoroethylene resin used was M-18, a trade name of engineering plastics, Kai Xinbao, Suzhou.

In the following examples, polyacrylamide from environmental protection technologies, Inc. of Hongke, Henan, was used.

In the following examples, 5-amino-3-cyclohexyl-1-methyl-1H-pyrazole-4-carbonitrile manufactured by Hangzhou Sun chemical Co., Ltd, 5-amino-3-cyclohexyl-1-methyl-1H-pyrazole-4-carbonitrile having the product number sd-37698, was used.

In the following examples, 2-ethyl-4-methyl-6-piperazine-1-pyrimidine from Korea Jinle Co., Ltd was used.

In the following examples, polyoxyethylene glyceryl ether having a trade name of alihn-20-14433 available from Jinconal chemical Co., Ltd was used.

In the following examples, zonisamide from Shenzhen Sendy Biotech, Inc. was used.

In the following examples, the graphite tin is graphene with a fineness of 1-3 nm, which is commercially available from Jinhong chemical industry in Jinshu district, Zhengzhou city.

In the following examples, pineapple fiber of Zhejiang Mingtong textile technology ltd is used as the pineapple fiber.

In the following examples, graphene with a fineness of 1-3 nm, which is commercially available from Jinhong chemical industry in Jinshui district, Zhengzhou city, is used as the graphite tin.

In the following examples, stearyl alcohol was stearyl alcohol from Nanjing New development chemical Co.

In the following examples, 3-aminopyrazole available from Shanghai Ji to Biochemical technology Ltd was used as the 3-aminopyrazole.