KR20200082001A - Elastic composite yarn comprising wool fiber, and Knitted fabric using thereof - Google Patents

Abstract

The present invention relates to: elastic composite yarn comprising wool fibers, which uses core yarn containing cotton yarn containing wool fibers and polyester-based latent crimped yarn as effect yarn, and which has a two-tone effect of melange and slub and improved elasticity by twisting; and a knitted fabric using the same.

Description

Elastic composite yarn comprising wool fiber, and knitted fabric using thereof

The present invention relates to a stretchable composite yarn comprising wool fibers and a knitted fabric using the same, while it contains a spun yarn containing wool fibers and a stretchable polyester-based yarn, while improving the elasticity through adjusting the number of twists and providing a slub and melange two-tone effect It relates to a stretchable composite yarn comprising a wool fiber and a knitted fabric using the same.

In general, a composite yarn having elasticity is used for various clothing such as underwear, lining, and outer covering by twisting or covering by using polyurethane fiber having excellent elasticity as a screening, and using an inelastic filament yarn or an inelastic spinning yarn as an effect yarn.

While the polyurethane fiber as described above is excellent in elastic properties, it is not used alone because it has poor flame resistance, heat resistance, and light resistance, and is not used alone, and is used as a twisted yarn or covered with an effect yarn as described above, and the polyurethane fiber is priced. This is a factor that increases the manufacturing cost of clothing using polyurethane fibers at a very high cost compared to other synthetic fibers.

Japanese Unexamined Patent Publication No. 6-212525 discloses a composite yarn obtained by combining a non-elastic yarn made of a spun yarn or a filament yarn with a coated elastic yarn coated with an inelastic single fiber in the examination of polyurethane fibers, and the fabric using the composite yarn is The elasticity is generally good, but the use of polyurethane fibers has disadvantages such as poor flame resistance, heat resistance and light resistance, and a high process defect rate in the dyeing process.

In addition, wool fibers, which are frequently used in textiles for clothing for autumn/winter, have a unique crimp due to the cross-sectional structure of Ortho-Para-Cotex, and are mainly used as a waste spinning yarn. It is mainly used for suits, jackets, dresses, etc. due to its cold resistance, unique sensibility and volume

The wool fiber is an expensive clothing fiber, and a wool-like synthetic fiber composite yarn that can replace the wool fiber has been continuously developed and commercialized, but until now, a composite yarn reproducing with the unique characteristics of the wool fiber has been developed. It cannot be done.

In general, when manufacturing clothing with wool fibers, 100% of wool fibers have been used, or acrylic fibers have been used in combination. However, the use of conventional composite yarns containing wool fibers has limited strength and has limited elasticity, so their use is limited.

The present invention for solving the problems of the prior art as described above is an object of the present invention to provide a stretchable composite yarn comprising a wool fiber having a high elasticity even without using a polyurethane fiber.

In addition, an object of the present invention is to provide a stretchable composite yarn including wool fibers having excellent stretch and strength by controlling the number of twists while using a polyester-based latent winding yarn and wool fibers.

In addition, it is an object of the present invention to provide a knitted fabric having a slub and melange two-tone effect when dyed through an elastic composite yarn containing wool fibers.

The present invention is formed by twisting (twisting) with a twist of 2 to 10 TPI, using a screening yarn containing 40-60 wool fibers and a 50-150 denier polyester latent winding yarn as an effect yarn. It provides a stretchable composite yarn comprising a wool fiber, characterized in that.

In addition, the present invention is effective for screening including a spun yarn containing 40 to 60 wool fibers, and for the first polyester-based latent yarn of 50 to 150 denier and the second polyester-based latent yarn for 50 to 150 denier. It provides a stretchable composite yarn comprising wool fibers, which is used as a yarn and is formed by twisting with a twist number of 2 to 10 TPI.

In addition, there is provided an elastic composite yarn comprising wool fibers, characterized in that one or two functional polyester yarns are further included in the screening or effect yarn.

In addition, the functional polyester yarn provides a stretchable composite yarn comprising wool fibers, characterized in that the cationic flame-retardant polyester yarn or hollow polyester yarn or polyester-based latent yarn.

In addition, the spun yarn comprising the wool fibers provides a stretchable composite yarn comprising wool fibers, characterized in that the spun yarn is formed of acrylic fibers and wool fibers.

In addition, when the two effect yarns are used, the effect yarns provide a stretchable composite yarn comprising wool fibers, characterized in that they are twisted in different directions.

In addition, it provides a knitted fabric characterized in that it comprises a stretchable composite yarn comprising the above wool fibers.

The stretchable composite yarn comprising the wool fiber according to the present invention is composed of a polyester-based latent twisted yarn and a spun yarn containing wool fibers, and has an effect of excellent elasticity and strength by adjusting the number of twists.

In addition, there is an effect in which a slub and melange two-tone effect is generated when dying using a polyester latent crimped yarn and wool fibers.

In addition, there is an effect of providing a knit fabric in which a two-tone effect occurs during dyeing through an elastic composite yarn comprising wool fibers.

1 and 2 is a composite yarn picture showing various embodiments of the stretchable composite yarn comprising a wool fiber according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, it should be noted that, among the drawings, the same components or parts indicate the same reference numerals as possible. In describing the present invention, detailed descriptions of related known functions or configurations are omitted so as not to obscure the subject matter of the present invention.

As used herein, the terms'about','substantially', etc. are used in the sense of or close to the numerical value when manufacturing and material tolerances unique to the stated meaning are presented, and the understanding of the present invention. To help, accurate or absolute figures are used to prevent unconscionable abusers from unduly using the disclosed disclosure.

1 and 2 are composite yarn pictures showing various embodiments of the stretchable composite yarn including the cellulose-based yarn according to the present invention.

The present invention relates to a stretchable yarn comprising wool fibers and wool fibers comprising a polyester-based latent yarn.

The stretchable composite yarn according to the present invention uses a screening yarn containing a spinning yarn containing 40 to 60 wool fibers and a polyester-based latent winding yarn of 50 to 150 denier as an effective yarn, and twists with a twist number of 2 to 10 TPI (twisting) ).

When the number of twists is less than 2 TPI, the physical properties of the composite yarn may deteriorate and strength and elongation may deteriorate. If the number of twists exceeds 10 TPI, the composite yarn becomes stiff and the touch and appearance may deteriorate.

The wool fiber may be any wool fiber that can be used as clothing, but it is preferable to use a washable wool fiber for user convenience.

In addition, the spun yarn containing the wool fiber may be used to spun yarn formed of acrylic fiber and wool fiber according to the purpose of use.

The polyester-based latent crimped yarn may be any of polyester-based latent crimped yarns manufactured in a side-by-side composite fiber form with two types of polyester resins having intrinsic viscosity differences or melting viscosity differences. .

The polyester-based latent yarn may be used as an effect yarn, and one polyester-based latent yarn may be used for the effect yarn, or two polyester-based latent yarns may be used as the first polyester-based latent yarn and the second. It can be used as an effect yarn by dividing it into a polyester-based latent yarn.

When two polyester-based latent yarns are used as effect yarns, polyester-based latent yarns with different fineness may be used to increase the natural texture in the gloss and appearance of the stretchable composite yarn.

The stretchable composite yarn comprising the wool fiber according to the present invention may further include one or two functional polyester yarns in the screening or effect yarn to increase functionality.

The functional polyester yarn gives the functionality desired by the user to the composite yarn, and the functional polyester yarn having various functions may be included in the screening or effect yarn, for example, a cationic flame-retardant polyester yarn or a hollow polyester yarn or polyester It may be a potential congratulatory house.

The cationic flame-retardant polyester yarn is a polyester yarn that can be dyed with a cationic dye to improve the dyeability of the stretchable composite yarn including the wool fiber of the present invention, and can generate various dyeing effects of the stretchable composite yarn.

The hollow polyester yarn is a yarn in which a hollow is formed inside the fiber, and when used for screening or effect yarn, the heat retention property of the stretchable composite yarn can be improved, and light weight will be improved.

When the polyester-based latent crimping yarn is further included, it may be included in the screening rather than the effect yarn to further improve the stretchability of the present invention.

The functional polyester yarns are cationic flame-retardant polyester yarns or hollow polyester yarns or polyester-based latent yarns, and polyester yarns having functionality added with antimicrobial substances, UV-blocking substances, far-infrared radiation substances, etc. to polyester resins. It can be used, and an anti-pilling polyester yarn may be used.

The elastic composite yarn comprising the wool fiber of the present invention, which is formed of a screening yarn containing wool fibers and a polyester-based latent yarn as an effective yarn as described above, is formed by twisting with a twist number of 2 to 10 TPI. .

The stretchable composite yarn comprising the wool fiber according to the present invention as described above may be manufactured by twisting the screening and effecting yarn or the screening and the first effecting yarn and the second effecting yarn by using the MH, MX method using a composite covering yarn. .

Particularly, when two effect yarns are used, the effect yarns can be twisted in an MX manner that is twisted in different directions to further improve the stretchability of the stretchable composite yarn.

The stretchable composite yarn comprising the wool fiber according to the present invention is preferably contained in 30 to 80% by weight for the warmth and natural texture of the wool fiber, and the polyester-based yarn contained in the composite yarn is 30 to 60 for the physical properties of the composite yarn It will preferably be contained in weight percent.

In addition, when using the elastic composite yarn containing the wool fiber of the present invention for the fall / winter, it will be preferable to form by adjusting the fineness of the elastic composite yarn to 5 to 20 times.

In addition, the stretchable composite yarn comprising the wool fiber of the present invention formed as described above is preferably at least 15% elongation, more preferably at least 20%.

The elastic composite yarn comprising the wool fiber according to the present invention is a composite yarn in which the wool fiber and the polyester yarn are mixed, and as a result of dyeing differences, a slop and melange two-tone effect occurs during dyeing as in FIGS. 1 to 3. It has the same appearance as a thread formed from natural fibers.

In addition, the knitted fabric comprising the elastic composite yarn comprising the wool fiber according to the present invention has a melange effect due to the difference in the number of twists and dyeing properties, and the mixing ratio of the wool fiber and the polyester yarn has a very low washing dimension change rate, and is warped. The phenomenon is suppressed and has excellent shape stability.

Hereinafter, an example of a method for manufacturing a stretchable composite yarn including wool fibers according to the present invention is shown, but the present invention is not limited to the examples.

Example One

48's wool spun yarn formed of 100% wool, 50D polyester-based latent yarn was used for screening, 75D polyester-based latent yarn was used as an effective yarn, and twisting was performed using a composite covering yarn with a twist count of about 5 TPI, MH. To prepare a stretchable composite yarn comprising wool fibers according to the present invention.

Example 2

48's wool spun yarn formed of 100% wool was used as a screening method, and 50D polyester latent yarns and 75D polyester latent yarns were used as effective yarns, and twists were twisted in the manner of approximately 5 TPI, MX using a composite covering yarn. To prepare a stretchable composite yarn comprising wool fibers according to the present invention.

Example 3

60's wool spun yarn made of 100% wool, 65D polyester hollow fiber, and 75D polyester cationic dyed yarn were used for screening, and 50D polyester latent crimped yarn was used as an effective yarn. 6 TPI, twisted by MH method to prepare a stretchable composite yarn comprising a wool fiber according to the present invention.

Example 4

60's wool spun yarn made of 100% wool, 65D polyester hollow fiber was screened, 50D polyester latent winding yarn, 75D polyester cationic dyeing yarn was used as an effective yarn, and the number of kinks was twisted using a composite covering yarn. 6 TPI, MX was twisted to produce a stretchable composite yarn comprising wool fibers according to the present invention.

◈ Measurement of physical properties of elastic composite yarn

The stretched composite yarns of Examples 1 to 4 prepared above were left in the standard state (20° C./65%) for 24 hours or more, and then counted, strength, elongation, and twist number in the standard state are shown in Table 1.

The number was measured by the test standards of KS K ISO 2060, strength and elongation KS K ISO 2062.

division Number (Ne) Strength (cN/tex) Elongation (%) Example 1 16.1 16 21 Example 2 16.3 16 21 Example 3 10.6 17 24 Example 4 10.7 17 24

As shown in Table 1, it can be seen that all of the stretchable composite yarns comprising the wool fibers according to the present invention have an elongation of 20% or more, and a strength of 16 cN/tex or more, which is excellent in strength and stretchability.

◈ Dyeing and fabric property evaluation

The stretched composite yarns containing wool fibers according to the present invention prepared in Examples 1 to 4 were dyed with disperse dyes, respectively, and are shown in FIGS. 1 and 2.

Example 1 is the left side of FIG. 1, Example 2 is the right side of FIG. 1, Example 3 is the left side of FIG. 2, and Example 4 is the right side of FIG. 2. It can be seen that the two-tone effect is expressed.

The stretched composite yarn comprising the wool fibers according to the present invention prepared in Examples 1 to 4 is knitted and fabricated as a knitted fabric to measure the change in washing dimension (%) and warpage and are shown in Table 2. As a comparative example, a knit fabric made of 20's wool spun yarn formed of 100% wool was used.

The washing dimensional change rate was measured according to the test standards of KS K ISO 5077 and warping of KS K ISO 16322-2.

division Washing dimension change rate (%) Warping (%) wale course Example 1 -0.5 -0.5 0 Example 2 -0.5 0.5 0 Example 3 -1.0 -1.0 0 Example 4 -0.5 -1.0 0 Comparative example -9.5 -8.5 4.3

As shown in Table 2, it can be seen that the elastic composite yarn containing the wool fiber according to the present invention has a dimensional change rate according to washing of 1 to 4, which is less than 1%, which is superior to that of the comparative example, and that warpage hardly occurs. Able to know.

Therefore, it will be understood that the shape stability is very excellent when the knitted fabric is manufactured with the stretchable composite yarn comprising the wool fiber of the present invention.

Claims (7)

It is characterized by screening including spun yarn containing 40-60 wool fibers and using 50-150 denier polyester-based latent yarn as an effective yarn, and twisting with a twist number of 2-10 TPI. An elastic composite yarn comprising wool fibers. Screening including spun yarn containing 40-60 wool fibers, 50~150 denier first polyester-based latent yarns and 50-150 denier second polyester-based latent yarns as effect yarns, twisted Stretchable composite yarn comprising wool fibers, characterized in that it is formed by twisting (twisting) with a number of 2 to 10 TPI. According to claim 1,
An elastic composite yarn comprising wool fibers, characterized in that one or two functional polyester yarns are further included in the screening or effect yarn. According to claim 3,
The functional polyester yarn is a stretchable composite yarn comprising wool fibers, characterized in that the cationic flame-retardant polyester yarn or hollow polyester yarn or polyester-based latent yarn. The method according to claim 1 or 2,
The spun yarn comprising the wool fibers is an elastic composite yarn comprising wool fibers, characterized in that the spun yarn formed of acrylic fibers and wool fibers. The method according to claim 1 or 2,
When the two effect yarns are used, the effect yarns are elastic composite yarns comprising wool fibers, characterized in that they are twisted in different directions. A knitted fabric comprising a stretchable composite yarn comprising the wool fibers of claim 1.

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