KR101073224B1 - Fiber made after somatic structure and manufacturing method thereby - Google Patents

Abstract

The present invention relates to a biological structure mimic yarn and a method for manufacturing the same, and in detail, has a physical property of less than 2 ~ 5g / d, elongation 20% elongation, like a natural hair (human hair) is soft and does not stretch well when combing, curl The present invention relates to a living body mimic yarn and a method of manufacturing the same, which have excellent curl property and can be changed into a curl shape desired by a consumer, as well as excellent hot water resistance and stainability.

Wig Yarn, PVA, Protein

Description

FIBER MADE AFTER SOMATIC STRUCTURE AND MANUFACTURING METHOD THEREBY}

The present invention relates to a biological structure mimic yarn and a method for manufacturing the same, and in detail, has a physical property of less than 2 ~ 5g / d, elongation 20% elongation, like a natural hair (human hair) feels soft and does not stretch well when combing, curl The present invention relates to a living body mimic yarn and a method of manufacturing the same, which have excellent curl property and can be changed into a curl shape desired by a consumer, as well as excellent hot water resistance and stainability.

Wig yarns are largely classified into human hair (human hair) and synthetic fiber wig yarns. Human hair is most suitable as a yarn for wigs because it is flame retardant, curling freely curlable, durable and combable.

Synthetic fiber wig yarn is mainly made of PVC fiber and modacryl fiber, polypropylene, flame-retardant PET is used. Such a synthetic material is difficult to include all the advantages of human hair having a variety of excellent performance as a raw material for the wig. This is because there is a limit in the physical properties of the individual polymer material, in particular the thermal properties. In the case of strength and elongation, natural hair has strength of 2-3g / d and elongation of less than 5%. However, in the case of artificial hair, when the strength is 2 ~ 3g / d, the elongation is easy to increase when combing more than 30%, and the shape stability is not good, and when the elongation is low, the strength is too high, so it feels soft like natural hair. There is a problem of low consumer satisfaction with the form.

On the other hand, one of the most important performances that consumers demand is to use curling irons at home to form curls in the shape of their desired style to freely deform the shape. This is because the existing materials have the characteristics of melting at low temperatures, there is a limit of the material characteristics to meet the needs of consumers.

Therefore, there is a demand for artificial hair having the ability to reduce the phenomenon of lengthening at the time of combing and shrinkage at high temperature and to be easily dyed to be used according to consumer taste.

Flame retardant and soft to the touch PVC fiber and modacrylic fiber is the predominant situation. However, the shape of the wig once made could not be modified by consumers because PVC fibers and modacrylic yarns form curls in the oven during wig manufacture. PVC fibers and modacrylic yarns have low thermal properties, so that the curlers are melted in the curling irons, thereby preventing consumers from changing the style of the wig at home.

The present invention for satisfying the needs of the consumer has a strength of 2 ~ 5g / d, less than 20% of the elongation, and has a soft touch like natural hair does not stretch well when combing, excellent curl (curl) It is an object of the present invention to provide a mimic yarn which can be changed into a desired curl shape, as well as excellent mimic yarn having excellent hot water resistance and dyeing resistance, and a method of manufacturing the same.

The present invention for achieving the above object is a process for wet or gel spinning and stretching the spinning dope in which 60 to 90% by weight of polyvinyl alcohol polymer and 10 to 40% by weight of protein material in an organic solvent in a coagulation bath. It provides a method for manufacturing a wig yarn, characterized in that the manufacturing including.

The protein material is preferably made of one or more selected from collagen, gelatin, soy protein.

In particular, the wet-stretched unstretched yarn is preferably prepared by stretching 4.5-9.0 times, more preferably, the wet-stretched unstretched yarn is first stretched 2-4 times at 70-110 ° C. and then dried, and totally It is good to prepare a second stretch at 160 ~ 180 ℃ to stretch 4.5-9.0 times.

And it is preferable to include a step of heat-treating the stretched drawn yarn at 210 ~ 230 ℃.

In addition, the present invention provides a wig yarn, characterized in that produced by the manufacturing method of the wig yarn.

Hereinafter, the manufacturing method of the wig yarn of the present invention will be described in detail.

The manufacturing method of the wig yarn of the present invention comprises a step of wet spinning and stretching a spinning dope in which 60 to 90% by weight of a polyvinyl alcohol polymer and 10 to 40% by weight of a protein material in an organic solvent are dissolved in a coagulation bath. .

First, 60 to 90% by weight of a polyvinyl alcohol polymer and 10 to 40% by weight of a protein substance are dissolved in an organic solvent to obtain spinning dope. It is preferable that the polyvinyl alcohol polymer has a degree of polymerization of 2000 or more, and the degree of saponification is not particularly limited, but is preferably 99% or more. As the protein substance, one or a mixture of two or more selected from collagen, gelatin and soy protein is used.

When the protein material is contained in less than 10% by weight, the strength is high, the feel is not good, the curl (curl) is not good to use as a wig yarn, when contained in more than 40% by weight stretching process There is a problem in that the unstretched crumbs like biscuits occur.

As the organic solvent, it is preferable to use dimethyl sulfoxide which can dissolve the polyvinyl alcohol polymer at a low temperature of 80 ° C. or lower.

And it is good to use the organic solvent so that the viscosity of the spinning dope is 15,000 ~ 20,000cps in order to easily manufacture the wig yarn.

Next, the spinning dope is wet or gel-spun into the coagulation bath to obtain an unstretched yarn. By wet or gel spinning the spinning dope into the coagulation bath, an amorphous non-drawn yarn in a completely amorphous state can be obtained, and unlike the melt spinning, high stretching can be achieved.

In the coagulation bath, a solvent having coagulation ability in the polyvinyl alcohol-based polymer is accommodated, and alcohols such as methanol and ethanol may be used as the solvent.

Then, the unstretched yarn spun onto the coagulation bath is stretched to obtain a stretched yarn. At this time, it is preferable to stretch the unstretched yarn 4.5 to 9.0 times so as to be suitable for use as a wig yarn. When the undrawn yarn is drawn at less than 4.5 times, the elongation is very high, which is not suitable for use as a wig yarn, and when drawn at 9.0 times, the strength is 5 g / d or more, resulting in a deteriorated touch.

In particular, in order to prevent thermal decomposition of the protein in the high temperature stretching process, the first stretched unstretched yarn is 2 to 4 times at 70 to 110 ° C. and then dried, and the second stretched at 160 to 180 ° C. to be drawn to 4.5 to 9.0 times in total. It is desirable to.

On the other hand, it is preferable to heat-treat at 210 ~ 230 ℃ in order to impart hot water resistance to the stretched yarn. If heat treatment is less than 210 ℃ heat resistance is poor due to poor marketability, if the heat treatment above 230 ℃ there is a problem that the polyvinyl alcohol-based polymer is melted.

The manufacturing method of the wig yarn of the present invention has excellent performance and excellent combing property when curling curls, and similar to natural hair, its strength and elongation are not only soft to the touch like natural hair, but also physical properties such as hot water resistance. There is an effect that can be produced excellent wig yarn with excellent commercial properties.

Hereinafter, the manufacturing method of the wig yarn of the present invention will be described in more detail with reference to the following Examples, the scope of the present invention is not limited to the following examples.

EXAMPLES 1-4

As protein, jelly strength of 240 ~ 250bloom, particle size of 30 mesh and pH of 5.0 ~ 6.0 were used. G's food and pharmaceutical gelatin was used. As polyvinyl alcohol polymer, PVA with polymerization degree H of 2,000 and saponification degree of 99% or more was used. Used. As the organic solvent for the production of spinning dope, industrial dimethyl sulfoxide having a purity of 99% or more was used.

The gelatin, PVA was stirred and dissolved with a dimethyl sulfoxide as an organic solvent, as shown in Table 1 below by using a heater using infrared rays, and then treated with vacuum for 24 hours in order to remove bubbles to obtain spinning dope.

The obtained spinning dope was wet-gelspun into a coagulation bath containing methanol solvent to obtain an unstretched yarn, firstly stretched three times at 100 ° C., then dried, and secondly stretched twice at 170 ° C. in Examples 1 to 4. A wig yarn was prepared.

[Examples 5 and 6]

As a protein, wig yarns of Examples 5 and 6 were prepared in the same manner as in Example 3 using G collagen and soy protein extracted from soybeans.

[Comparative Examples 1 and 2]

Without using gelatin at all, only PVA was dissolved in dimethyl sulfoxide to prepare a spinning dope, and then a wig yarn of Comparative Example 1 was prepared in the same manner as in Example. Then, 50% PVA and 50% gelatin were dissolved in dimethyl sulfoxide to prepare a spinning dope, and a wig yarn of Comparative Example 2 was prepared in the same manner as in the above example.

The strength and elongation of the Examples 1 to 6 and Comparative Examples 1 and 2 were measured by KS K 0409 (tensile strength and elongation test method of yarn: Oolol method), and the curl property was 50 strands of 30 cm in length. After curling 5 times with curling iron in the state of the end of the wig yarn, curl was formed and the condition was checked. If the curl was clearly maintained, '○', usually '△', was not maintained. The case was evaluated as '×'.

TABLE 1 Strength, elongation and curl properties of Examples 1 to 4 and Comparative Examples 1 and 2

Spinning dope (wt%) Elongation burglar
(g / d) Shindo
(%) Curl PVA gelatin Collagen Soy protein First extension 2nd extension Total extension Example 1 90 10 - - 3 2 6 4.77 18.8 ○ Example 2 80 20 - - 3 2 6 4.36 15.60 ○ Example 3 70 30 - - 3 2 6 2.68 10.90 ○ Example 4 60 40 - - 3 2 6 2.23 9.70 ○ Example 5 70 - 30 - 3 2 6 2.76 12.40 ○ Example 6 70 - - 30 3 2 6 2.30 10.20 ○ Comparative Example 1 100 - - - 3 2 6 5.75 15.20 × Comparative Example 2 50 50 - - 3 2 6 - -

As shown in Table 1, Examples 1 to 6 have a strength of 2.23 to 4.77 g / d, and elongation is 9.70 to 18.8%, which is soft as natural hair, but Comparative Example 1 has a strength of 5.75 g / d. The strength was high and the touch was not good. In addition, in the case of Examples 1 to 6, the curl was kept clear and the curl property was excellent, but in the case of Comparative Example 1, the curl property was not good.

EXAMPLES 7-12

The spinning dope as in Example 3 was wet gel-spun into a coagulation bath containing methanol solvent to obtain an unstretched yarn, and then stretched as shown in Table 2 to prepare the wig yarns of Examples 7 to 12.

Comparative Example 3

The spinning dope as in Example 3 was wet gel-spun into a coagulation bath containing methanol solvent to obtain an unstretched yarn, and then stretched three times only for the second stretch to prepare a wig yarn of Comparative Example 3.

TABLE 2 Strength and elongation of Examples 7-12 and Comparative Example 3

Elongation ratio Drawing temperature (℃) burglar Shinto First extension 2nd extension Total extension First extension 2nd extension Example 7 2 3 6 100 170 2.75 10.10 Example 8 3 1.5 4.5 100 170 2.16 16.50 Example 9 3 2 6 100 170 2.68 10.90 Example 10 3 2.5 7.5 100 170 2.83 9.90 Example 11 3 3 9 100 170 3.71 9.50 Example 12 4 2 8 100 170 3.51 9.80 Comparative Example 3 - 3 3 100 170 0.78 161.00

As shown in Table 2, in Examples 7 to 12, the strength is 2.16 to 3.71 g / d, and the elongation is 9.80 to 16.50%, which is excellent in physical properties and soft like a natural hair, but in the case of Comparative Example 3 Too high and not suitable for use as a wig yarn.

[Examples 13-17]

The same spinning dope as in Example 2 was wet gel-spun into a coagulation bath containing methanol solvent to obtain an unstretched yarn, firstly stretched three times at 100 ° C., then dried, and secondly stretched twice at 170 ° C., respectively. By heat treatment for 5 minutes as in the wig yarn of Examples 13 to 17.

The strength and elongation of the wig yarns of Examples 13 to 17 were measured by KS K 0409 (tensile strength and elongation test method of yarn: Oolol method), and the heat resistance was shown in Table 3 to evaluate the heat resistance. The water resistance test was evaluated by measuring the time at which the sample was broken by hanging a weight of 0.048 g / d on 8 strands of 15 cm sample in 98 ° C water.

TABLE 3 Strength, elongation and hot water resistance measurement results of Examples 13-17

Heat treatment
(℃) PVA
(wt%) gelatin
(wt%) Total draw ratio
(times) burglar
(g / d) Shindo
(%) Hot water resistant
(sec) Example 13 150 80 20 7.5 4.93 10.1 35 Example 14 170 80 20 7.5 5.18 12.5 57 Example 15 190 80 20 7.5 4.98 12.8 36 Example 16 210 80 20 7.5 4.74 15.1 More than 600 Example 17 230 80 20 7.5 4.14 19.9 More than 600

As shown in Table 3, in the case of Examples 13 to 17, the wig yarn was cut in water at 98 ° C. within 57 sec, but in Examples 16 and 17, it was confirmed that the heat resistance was very excellent because it was not cut in 600 sec or more. The heat-resistance imparted by heat treatment is thought to be caused by reorientation, recrystallization, etc. at high temperature so that the hydrogen bonding between molecules is well achieved.

Claims (6)

And a step of wet or gel spinning and stretching the spinning dope in which 60 to 90% by weight of the polyvinyl alcohol-based polymer and 10 to 40% by weight of the protein substance are dissolved in an organic solvent. The wet or gel-spun undrawn yarn is first drawn at 2 to 4 times at 70 to 110 ° C. and then dried, and second drawn at 160 to 180 ° C. to be drawn at a total of 4.5 to 9.0 times. Manufacturing method. The method of claim 1, wherein the protein material comprises collagen, gelatin, and soy protein. The method of claim 1, wherein the stretched yarn is heat treated at 210 ° C. to 230 ° C. 2. A biostructure mimic yarn prepared by the method of any one of claims 1 to 3. delete delete