KR100832916B1 - A method for manufacturing sewing thread used of hemp - Google Patents

Abstract

A method for producing a hempen sewing thread is provided to improve the flexibility and the thermal resistance of a hempen yarn through specific treatment, thereby usefully applying the hempen yarn to a sewing process and an embroidering process. A hempen yarn of 800-1200 TPM(Twist Per Meter) is wound at a rate of 2,000-3,000 rpm and a hardness of 60 degrees such that the hempen yarn has a weight of 1,300-1,500g per cone. A non-ion refining penetrant is applied to the hempen yarn to remove impurities from a surface of the hempen yarn. The hempen yarn is inputted into a dilution solution of 60°C for 20 minutes so that the hempen yarn has flexibility and thermal resistance. The dilution solution is prepared by diluting a modified amino silicon softener of O.W.F 10-14 % and an antistatic agent of O.W.F 1% with water of 10 times. The resultant hempen yarn is dehydrated at a rate of 3500-4800 rpm by using a centrifugal dehydrator so that the hempen yarn has a water content of 50%. The dehydrated hempen yarn is dried at a temperature of 120-180°C for 2 hours. The dried hempen yarn is cooled for 24 hours within a standard room having a temperature of 20±2°C and a humidity of 65±2%. The cooled hempen yarn is passed through synthetic silicon oil, and then wound on the cone.

Description

Manufacturing method of hemp sewing thread. {A METHOD FOR MANUFACTURING SEWING THREAD USED OF HEMP}

The present invention relates to a method for manufacturing hemp sewing, and more particularly, to a method for manufacturing hemp sewing, which was previously made impossible, consisting of preparation, refining, main treatment, dehydration, drying aging, and finishing.

Hemp fabrics are made of fibers extracted from hemp stems. They are ten times more durable and harder than cotton, and are mainly used to make veterinary products. Recently, the strength and functionality have been widely recognized. It is also used to make living clothes with various functionalities in conjunction with them.

On the other hand, in the past, hemp fibers could not be made of sewing thread, so even when sewing hemp fabric, there was no choice but to use a general sewing thread made of cotton or synthetic fibers. It was not possible, and the general sewing thread was a major cause of deteriorating the overall quality of hemp products.

The reason why hemp fiber could not be used as a sewing thread is that it is too tough, stiff and extremely low in flexibility due to the characteristics of hemp, and when threading existing hemp yarn into sewing machines such as sewing machines, the thread breaks frequently. This is because it could not be used for embroidery filtering.

The present invention was devised to solve the above problems, and an object of the present invention is to provide a hemp sewing production method that can be used for sewing work and embroidery by increasing the flexibility and heat resistance by special treatment on the hemp yarn.

Hemp sewing production method according to an embodiment of the present invention was created in order to achieve the above object, the hemp yarn of 800 ~ 1200 TPM (Twist Per Meter) prepared in advance at a speed of 2,000 ~ 3000 rpm, hardness 60 degrees per cone Preparatory step of winding to 1,300 ~ 1,500g; A refining step of removing impurities from the yarn surface by using a nonion refining penetrant having excellent penetrating power; 10-14% modified amino silicon softener O.W.F and 1% antistatic agent O.W.F were diluted in 10 times of water and added at 60 ° C for 20 minutes to give the fiber flexibility and heat resistance. The main treatment step; Dehydration step using a centrifugal dehydrator at a speed of 3500 ~ 4800 rpm so that the moisture content is 50%; After drying for 2 hours at 120 ~ 180 ℃, drying aging step of drying and aging the sewing thread by cooling for about 24 hours in a standard room maintained at a temperature of 20 ± 2 ℃ and humidity of 65 ± 2%; It is configured to include; and passing through the synthetic silicone oil and finishing the winding on the cone.

Hereinafter, the hemp sewing production method according to an embodiment of the present invention will be described in more detail.

<Preparation stage>

This step can be seen as a pretreatment step in which the yarn wound on the cone in the refining and main processing steps to be performed later can be uniformly processed.

The hemp can be used in various thicknesses such as 21, 30, 40 and 60, but the number of twisted yarns should be in the range of 800 to 1200 TPM (Twist Per Meter). In general, when manufacturing the sewing thread can be used yarn having a weaving number of 550 ~ 630 TPM, but in the case of hemp yarn, if the number of twisted yarn is less than the above range, if the winding to the cone at a speed of more than 2000 rpm severe breakage phenomenon is severe manufacturing efficiency Because it is reduced.

The injected hemp is wound at a speed of 2,000 to 3000 rpm and a hardness (unit of sand density) of 60 degrees to 1,300 to 1,500 g per cone. If the winding speed and hardness is too large, the four layers are dense, so that the treatment agents to be added thereafter may not be completely penetrated, and if too small, the thread may flow down. In addition, the limit of the weight range per cone is to optimize the productivity, uniformity of quality and reproducibility.

<Refining stage>

This step is to remove impurities on the surface of the yarn can be carried out using a non-refining penetrant having excellent penetration.

<Processing step>

This step is to increase the flexibility and heat resistance of the hemp yarn so that sewing can be done. 10 ~ 14% of modified amino silicon softener O.W.F and 1% of antistatic agent O.W.F 1% Dilute in water and add at 60 ℃ for 20 minutes.

O · W · F stands for 'On the Weight of the Fiber' and means what percentage of the fiber's weight. That is, 10% of O * W * F means 150 g with respect to 1500 g of fibers.

There are a variety of products that can be used as a softening agent, but since the modified amino silicone dielectric is the best performance at present, it is preferable to use it.

On the other hand, the antistatic agent is used to suppress the generation of hair and to coat the surface of the fiber. In winter, Snogen SRM, which is highly resinous, can be used. However, Snogen SRM is used at hot weather in summer, as scale is generated at high temperatures Not suitable below. Therefore, it is preferable to use Anfix CPX during summer.

<Dehydration stage>

This step is a process of preliminarily removing the injected chemicals and water, using a centrifugal dehydrator to dehydrate at a speed of 3500 ~ 4800 rpm so that the water content is 50%.

In this case, if the rotational speed is too small, dehydration is not achieved, and if the rotational speed is too fast, various treatment agents that penetrated into the fiber are excessively removed to achieve the desired effect.

<Dry maturation stage>

This step is to completely remove the added water. After drying for 2 hours at 120 ~ 180 ℃, it is cooled for about 24 hours in the standard room maintained at 20 ± 2 ℃ and 65 ± 2% humidity Let's do it.

At this time, if the temperature of the drying process is too low, the drying efficiency is reduced, if too high, there is a fear that the fiber and the treatment agent is modified.

On the other hand, cooling for 24 hours in the standard room increases the safety by naturally cooling the fiber heated to a high temperature in the drying process, and may unwind or warp the fiber in various processes, thereby returning it to its original position to restore the original properties of the fiber. It is to be able to exercise.

<Deadline step>

This step is a process to increase the heat resistance of the sewing thread so that the gum up phenomenon occurs during sewing work, so as not to lose the fiber or machine, it can be carried out by winding the cone through the synthetic silicone oil.

If the flexibility and heat resistance are given by 80% and 20%, respectively, in the main treatment process, it can be seen that the flexibility and heat resistance are provided by 20% and 80%, respectively, by passing the synthetic silicone oil in this finishing step.

The drawings and specification are merely exemplary of the invention, which are used only for the purpose of illustrating the invention and are not intended to limit the scope of the invention as defined in the meanings or claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

The hemp sewing made through the above process is improved flexibility and heat resistance can be put into the sewing work, thus providing a useful effect that can improve the quality when manufacturing veterinary or various functional clothing with hemp fabric.

Claims (1)

A preparatory step of winding a pre-prepared 800-1200 TPM (Twist Per Meter) hemp to be 1,300 to 1,500 g per cone at a speed of 2,000 to 3000 rpm and a hardness of 60 degrees; A refining step of removing impurities from the yarn surface by using a nonion refining penetrant having excellent penetrating power; 10-14% modified amino silicon softener O.W.F and 1% antistatic agent O.W.F were diluted in 10 times of water and added at 60 ° C for 20 minutes to give the fiber flexibility and heat resistance. The main processing step; Dehydration step using a centrifugal dehydrator at a speed of 3500 ~ 4800 rpm so that the moisture content is 50%; After drying for 2 hours at 120 ~ 180 ℃, drying aging step of drying and aging the sewing thread by cooling for about 24 hours in a standard room maintained at a temperature of 20 ± 2 ℃ and humidity of 65 ± 2%; A finishing step of winding the cone through the synthetic silicone oil; Hemp sewing production method comprising a.