KR900005571B1 - Treatment agent for manufacutring the thermoplastic compound synthetic fiber - Google Patents

Abstract

The agent for treating thermoplastic fine complex synthetic fiber comprises: 2-10 wt.% of mineral oil, 30-80 wt.% of oleil laurate; 3- 15 wt.% of sorbitan monolaurate; 10-30 wt.% of polyethylene monolate; 3-20 wt.% of polyoxyethylene caster oil; 1.5-10 wt.% of alkyl sulphonate sodium salt; 1.5-3.0 wt.% of perfluoro alkyl ethylene oxide.

Description

Thermoplastic Ultrafine Synthetic Fiber Treatment Agent

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing agent for producing ultrafine composite synthetic fibers of polyethylene terephthalate and polyamide, which are thermoplastic synthetic fibers, and more particularly, to a thermoplastic synthetic fiber treating agent for improving smoothness and focusing in an extending process.

In general, in the manufacture of thermoplastic micro-composite synthetic fibers such as polyamide and polyester, in order to facilitate the stretching process, the non-drawn yarn is treated with a stretching agent and then stretched. During the drawing process, trimming occurs due to excessive friction between the fibers, and wool or single yarn occurs due to friction between the running yarn and various contact members. For this reason, thermoplastic fibers, especially micro composite synthetic fibers, require a treatment agent capable of imparting high smoothness and concentration.

As a smoothing component of the conventional synthetic fiber treatment agent, liquid paraffinic mineral oil, oxyl oleate, butyl stearate, sodium lauryl sulfate ester, stearyl phosphate ester amine salt, stearyl acid polyamide type cation or nonionic polystyrene Although it is known to use glycol laurate, polyoxyethylene lauryl ether, etc., most of them have a disadvantage in that they are tarned in the stretching process to weaken the smoothness or the oil film is destroyed by various friction materials, thereby weakening the focusability. Therefore, a smoothing agent and a treating agent having a focusing force to reduce such defects are required. The suitable smoothing component includes an oleic aureate, and an oleic acid having excellent oil film strengthening ability for improving the focusing property. Synergism by the addition of a fluorosurfactant here has extremely good smoothness. These are selected and blended in an appropriate amount depending on the characteristics of the process through which the fiber passes.

The present invention focuses on the treatment components and the required properties, and the result of earnestly examining to develop a smoothing agent component which reduces the friction coefficient between fibers in the stretching process and a treatment agent having an oil film strengthening ability to protect the fiber from friction of the contact member to an appropriate level. The present invention has been reached.

The present invention is 2 to 10% by weight of mineral oil, 30 to 80% by weight of oleyl laurate, 3 to 15% by weight of sorbitan monolaurate, 10 to 30% by weight of poly ethylene glycol monooleate, 3 to 3% polyoxyethylene castor oil 20 wt%, alkyl sulfonate sodium salt 1.5 to 10 wt%, perfluoro alkyl ethylene oxide containing 1.5 to 3.0 wt% thermoplastic microfine synthetic fiber characterized in that the stretch after attaching to the unstretched yarn of the weaving process The mineral oil used in the present invention as a treatment agent is a refined paraffinic petroleum product having a viscosity of 30 to 500 seconds (measured at 30 ° C. with Red Wood Viscometer No. 1), which is 2 to 10% by weight of the total amount of the treatment agent. . If it is 10% by weight or more, the woolen yarn is increased due to uneven adhesion of the treatment agent, and below 2% by weight, the workability is inhibited due to lack of smoothness of the yarn.

In addition, the oleyl laurate used as the smoothing component is required to contain 30 to 80% by weight, and less than 30% by weight lacks the smoothness, resulting in many cuttings in the spinning work. Attachment increases moor and cuts. In addition, the nonionic surfactant used in the present invention is 20 to 60% by weight of the total amount of the treatment agent, such as sorbitan monolaurate, polyethylene glycol monoorate, polyoxy ethylene castor oil and the like. If the weight is 60% by weight or more, the friction between the fiber and the stretching roller is increased to cause trimming. If the content is 20% by weight or less, the smoothness between the fibers is lowered and workability is lowered in the stretching process.

On the other hand, the polyoxy ethylene castor oil used in the present invention is 3 to 20% by weight, the smoothness is reduced to less than 3% by weight, the cutting effect is increased and the viscosity increases if more than 20% by weight, the treatment agent is uneven to the traveling company Because it is attached, the dyeability of yarn is poor. Alkylsulfonate sodium salt is added 1.5 to 10% by weight of the total amount of the treatment agent, if more than 10% by weight, the generation of tar increases during stretching, worsening workability and dyeability, if less than 1.5% by weight, the static electricity generated in the yarn It is easy to wind up and has a bad effect on the work. Perfluoro alkyl ethylene oxide is 1.5 to 3% by weight of 1.5% by weight or less poor adhesion uniformity occurs, and more than 3% by weight increase in the occurrence of tar during stretching, poor dyeability.

The treatment agent in the present invention improves the smoothness and the focusability in the stretching step only by one adhesion treatment in the spinning step of the thermoplastic microfine composite fiber.

In this invention, the adhesion amount of a processing agent is 0.6 to 2.0 weight% in a stretched yarn.

The present invention will be described in detail with reference to the following Examples.

Example 1

The composition ratio of the treatment agent used in the present invention is shown in Table 1-5, and the stretched yarn was prepared at a heater surface temperature of 113 ° C. DR 2.92 using an undrawn yarn having a spinning speed of 1,200 meters / minute. Table 6 shows the results of evaluation of the dynamic friction coefficient, the focusability, the workability, the dyeability, the chargeability, and the like.

TABLE 1

TABLE 2

TABLE 3

TABLE 4

TABLE 5

○ Evaluation method

Dynamic Friction Coefficient: The drawn yarn was evaluated by an easy-processing friction meter at 250 m / min.

Focusing: The drawn yarn was measured using a load tester (manufactured by Hiruda Riken Co., Ltd.) at 40 revolutions per minute and 32 grams of load.

Workability: Full cheese%

Dyeing property: After the drawn yarn obtained by the aforementioned drawing method is circular knitted with a circular knitting machine, it is judged whether it is uniformly dyed after carrier dyeing with navy blue.

○: uniformly dyed

×: unevenly dyed

Chargeability: The electric potential of the traveling vehicle immediately after passing through the delivery roller in the aforementioned stretching process was measured by a current collector, a gas detector, and evaluated by the following criteria.

○: large voltage 0-300V

△: high voltage 301-1,000V

×: large voltage 1,000V or more

TABLE 6

Table 6 shows that the treatment agent I-II, the invention, is much better than the treatment agent III-V in the dynamic friction coefficient showing smoothness, and the treatment agent III-V occurs at 75 or less single yarns due to friction. On the other hand, the inventive treatment agent I-II showed 105 times and 120 times, and showed extremely excellent concentration.

Claims (1)

In the processing agent for the purpose of improving the smoothness and the focusability in the stretching process in the filament manufacturing process of the thermoplastic microfine composite fiber, mineral oil 2 to 10% by weight, oleyl laurate 30 to 80% by weight, sorbitan monolau 3 to 15% by weight, 10 to 30% by weight of polyethylene glycol monoorate, 3 to 20% by weight of polyoxy ethylene castor oil, 1.5 to 10% by weight of alkyl sulfonate sodium salt, 1.5 to 3.0% by weight of perfluoro alkyl ethylene oxide A treatment agent for thermoplastic microfine synthetic fibers, containing%.