KR100631474B1 - Composite Yarn and Knit Socks Used Ramie Spun Yarns - Google Patents

Abstract

The present invention relates to a composite yarn using a woolen yarn having excellent physical properties, such as elongation and leveling agent, and retaining the refreshing feel of ramie, and excellent knitting, and more specifically, to a sock including the same. In the composite yarn using a yarn and a sock including the core yarn consisting of a core yarn made of a yarn, and a binder yarn made of twisted yarns of 300 to 800 T / M in the core yarn and covered with a twisted yarn of PTT yarn of 75 denier or less in cross section. It is about.

The composite yarn using the above-mentioned yarn is excellent in elongation and uniformity, so that the trimming does not occur when knitting, and the productivity is greatly improved. Also, the PTT yarn having a triangular cross section increases the flow of air to increase the freshness of the yarn. It can be effective.

Ramie, PTT, composite yarn

Description

Composite Yarn and Knit Socks Used Ramie Spun Yarns}             

1 is a view schematically showing an apparatus for manufacturing a composite yarn using a woolen yarn according to the present invention.

2 is a view showing the elongation of yarn or composite yarn according to an embodiment of the present invention and a comparative example.

3 is a view showing the uniformity of the yarn or composite yarn according to the Examples and Comparative Examples of the present invention.

Explanation of the symbols of the main parts of the drawings

10: yarn yarn 20: PTT yarn

30: Moshi / PTT composite yarn 50: Spindle

60: bobbin

The present invention relates to a composite yarn using a woolen yarn having excellent physical properties, such as elongation and leveling agent, and retaining the refreshing feel of ramie, and excellent knitting, and more specifically, to a sock including the same. In the composite yarn using a yarn and a sock including the core yarn consisting of a core yarn made of a yarn, and a binder yarn made of twisted yarns of 300 to 800 T / M in the core yarn and covered with a twisted yarn of PTT yarn of 75 denier or less in cross section. It is about.

In recent years, clothing materials have been rapidly developed due to the development of chemical fibers, but the demand for wearing eco-friendly and harmless clothing is increasing due to the improvement of living standards and the development of civilization. Focuses on enhancing and developing the functionality of

Since ancient times, ramie has been used as a summer cloth because it is harmless and light to human body. It is superior in breathability compared to other fibers, has excellent moisture absorption and dissipation, and is attracting attention as a cool material.

Conventional ramie has been used as a garment since the Three Kingdoms period, and recently it has been spotlighted as a soft material for summer, but it was not available as a popularization material because it was limited to fabric-based materials by hand-made woolen yarn and traditional loom. Recently, mechanized spinning yarn has been developed, but the development of knitted products is almost incomplete due to the rough surface of the yarn and the uniformity.

The present invention for solving the above problems is excellent in physical properties such as elongation and leveling agent, and maintains the refreshing feel of the characteristics of ramie, excellent knitting and using a composite yarn using a yarn that can be used as a popularized material and knitted socks including the same The purpose is to provide.

The present invention devised in order to achieve the above object is a core yarn made of 250 denier (or less than denier) yarn yarn, and the twisted yarn covered with twist of 300 to 800 T / M to the core yarn, the cross section is 75 denier or less It provides a composite yarn using a yarn yarn consisting of a binder yarn consisting of PTT yarn.

In addition, the composite yarn provides a composite yarn using a yarn of 2.5g / d or more, elongation of 2.5% or more, and evenness of 20% or less.

On the other hand, the content of the composite yarn using the ramie yarn is made of 50 to 80% to provide a knitted socks excellent in the refreshing feel and fit.

Hereinafter will be described in detail with respect to the composite yarn and the knitted socks using the yarn of the present invention.

1 is a view schematically showing a device for manufacturing a composite yarn using a yarn yarn according to the present invention, a composite yarn using a yarn yarn of the present invention, the yarn yarn 10 as a core yarn, the core yarn yarn 10 PTT (polytrimethyleneterephthalate) yarn 20 having a triangular cross section is manufactured as a binder yarn.

In FIG. 1, reference numeral 50 denotes a spindle rotating in one direction, and reference numeral 60 denotes a bobbin, and the bobbin 60 is a yarn / PTT manufactured by twisting and covering a PTT yarn 20 on a yarn yarn 10, which is a core yarn. The composite yarn 30 is wound up.

In the production of the composite yarn, the yarns forming the core yarn may use the yarns prepared by water spinning, but it is preferable to use the yarns manufactured by the mechanized spinning equipment having excellent strength, elongation and uniformity. It is recommended to use wet spinning equipment that can prevent trimming because twist is uniformly applied.

In the spinning process by the wet spinning equipment, the yarn was manufactured by refining, bleaching, splitting, cutting, softening, spinning, refining, spinning, winding, and using the raw materials of the seaweed separated from the core and the bark of the ramie wood. Combing processes can also be added.

In addition, the fineness of the spun yarn produced by the mechanized spinning equipment is preferably less than 250 denier (denier), which is a popular sock when manufacturing composite yarn with spun yarn having a fineness of more than 250 denier as the core yarn This is because not only the thickness is exceeded, but also the problem of knitting is caused.

In addition, the binder yarns that are twisted and wrapped around the core yarn spinning yarn use PTT yarns of 75 denier or less having a triangular cross-sectional shape.

PTT yarn is excellent in elasticity and can supplement low elongation of ramie, and it is suitable as binder yarn because it helps to improve knitting ability by lowering the uniformity of woolen yarn. In addition, by making the cross section of the PTT yarn triangular, there is an advantage of increasing the air flow to increase the refreshing feeling by the ramie.

In addition, the fineness of PTT yarn is preferably 75 denier or less, because it not only exceeds the thickness of socks for popular use but also adversely affects the knitting ability when manufacturing knitting socks using a composite yarn that is twisted and covered with yarn yarn. to be.

When twisting the yarn cover using the yarn yarn as the core yarn and the PTT yarn as the binder yarn, it is preferable that the twist number is 300 to 800T / M. If the twist number is less than 300 T / M, there is a problem of bad knitting due to the presence of nep and disproportionate parts present in the yarn, and if the twist number exceeds 800 T / M, the leveling agent is improved but the elongation is Snarl phenomenon and the like occurs, but rather lowers knitting.

On the other hand, the composite yarn composed of a core yarn of 250 denier or less yarn yarn and a binder yarn of 75 denier or less PTT yarn has a strength of 2.5 g / d or more, elongation of 2.5% or more, and uniformity of 20% or less. If the strength is less than 2.5g / d and the elongation is less than 2.5%, the yarn is frequently trimmed due to the lack of strength and flexibility required for knitting needle movement during knitting, and the leveling agent exceeds 20%. Nep (nep) and disproportionate portion present in the woolen yarn causes problems such as the omission of the knitting needle (thickness) and the yarn trimming in the thick portion during the production of knitted socks.

The composite yarn of the present invention can be used for various purposes, but is particularly suitable for producing knitted socks. In addition, it is preferable to set the content of the composite yarn to 50 to 80% in consideration of the cooling feeling and the wearing feeling when preparing the knitted socks.

If the content of the composite yarn is less than 50%, the silky texture and the refreshing feel of the ramie are reduced, and thus the ramie effect cannot be sufficiently exerted, and in the case of more than 80%, the refreshing feeling is strong but the characteristic of the socks Due to the lack of fit, the socks are not fixed when the socks are worn, and there is a high risk of injuring the skin due to friction with the shoes.

The invention is described in more detail in the following examples, but the invention is not limited to the following examples.

Example 1

Weaving yarn is covered by twisting covering at 300 to 600 T / M by using 250 denier woolen yarn manufactured in the wet spinning process as core yarn, and PTT yarn of about 75 denier with a monofilament cross section as a binder yarn. Composite yarns were prepared, and the physical properties of Moshi / PTT composite yarns thus prepared were 2.54 g / d in strength, 2.6% in elongation, and 19.0% in homogeneity.

Socks were prepared in a combination of nylon / spandex covering yarns and band rubber yarns such that the content of the ramie / PTT composite yarns was about 70%, and sock was not produced. In addition, the socks prepared as described above were excellent in the refreshing feeling and fit.

Example 2

Composite yarn by twisting 300 to 800 T / M twisted yarn cover using 160 denier woolen yarn manufactured in the wet spinning process as core yarn and PTT yarn of about 75 denier with triangular monofilament cross section as binder yarn The physical properties of the prepared ramie / PTT composite yarn were 2.50 g / d, elongation 2.9%, homogeneity 18.5, and the elongation was good, and the bactericidal system was decreased due to the reduction of Nep.

Socks were prepared in a combination of nylon / spandex covering yarns and band rubber yarns such that the content of the ramie / PTT composite yarn was about 60%, and sock was not produced in the workability without the occurrence of thread trimming. In addition, the socks prepared as described above were excellent in the refreshing feeling and fit.

Comparative Example 1

Attempted to analyze physical properties and manufacture composite yarns using 300 denier yarns produced by hand in Seocheon, Korea, but the strength and elongation are low and the uniformity is more than 30%, resulting in Nep generation and uniform yarn thickness. It was. In addition, it is necessary to rewind in cheese or corn state due to low production by hand, and it is judged that it is possible to manufacture the fabric by grass feeding, but it is impossible to manufacture composite yarn and socks for knitted products.

Comparative Example 2

Socks were prepared from socks knitting machine type and Euljong using nylon / spandex covering yarn and rubber band yarn using 250denier wool yarn manufactured in wet spinning process. The physical properties of the yarn were 2.26 g / d in strength, 2.0% in elongation, and 26.1% in uniformity.

Sock manufacturing was possible, but the coarse needle and thread of the knitting needle frequently occurred in the roughness of yarn and nep etc., causing problems in knitting workability and quality.

Comparative Example 3

Socks were prepared from socks knitting machine type and Euljong using a combination of nylon / spandex covering yarn and band rubber yarn using a 160 denier thick yarn manufactured in the wet spinning process. The physical properties of the yarn were 2.24 g / d in strength, 1.9% in elongation, and 26.1%.

The production of socks was better than that of Comparative Example 2, but problems of knitting workability and quality occurred due to the roughness of the yarn and the occurrence of swelling of the knitting needles and trimming in the disproportionate portion caused by Nep.

[Comparative Example 4]

Unlike Example 1, a composite yarn was manufactured by twisting and covering twisted yarns at 200T / M using 250 denier ramie yarn as a core yarn and 75 denier PTT yarn as a binder yarn. The physical properties were 2.51 g / d, 2.1% elongation, and 23.6% homogenization. Unlike the ramie / PTT composite yarn prepared according to Example 1, the number of twists was small, so that the nebulization agent was poor due to the presence of nep and disinfectant portions present in the yarn You can check it.

Socks were prepared in socks knitting type and Euljong in combination with nylon / spandex covering yarn and band rubber yarn so that the content of the ramie / PTT composite yarn was about 70%, and the occurrence of trimming due to the presence of nep and disinfectant parts during knitting. Knitting was poor.

[Comparative Example 5]

Unlike Example 1, a composite yarn was manufactured by twisting and covering twisted yarns at 900T / M using 250 denier ramie yarn as a core yarn and 75 denier PTT yarn as a binder yarn. The physical properties were 2.41 g / d, 1.9% elongation, and 18.3% evenness, and the degree of twisting was improved due to excessive twisting, compared to the ramie / PTT composite yarn prepared in Example 1, but the elongation was lowered.

Socks were prepared from socks knitting type grade and Euljong in combination with nylon / spandex covering yarn and band rubber yarn so that the content of the ramie / PTT composite yarn was about 70%, and the stiffness of the ramie / PTT composite yarn was reduced and knitting occurred due to the Snarl phenomenon. This was bad.

Comparative Example 6

Unlike Example 1, a sock was prepared in socks knitting type and Euljong in combination with nylon / spandex covering yarn and band rubber yarn so that the content of ramie / PTT composite yarn was about 40%. As a result of wearing the manufactured socks, the feeling of shaggy touch and cool refreshing were reduced.

Comparative Example 7

Unlike Example 1, socks were manufactured in socks knitting machine type and Euljong in combination with nylon / spandex covering yarn and band rubber yarn so that the content of ramie / PTT composite yarn was about 90%. The refreshing feeling felt strong, but the socks weren't fixed to the feet and moved easily so they weren't comfortable to wear.

The physical properties, woolen content, and knitting properties of the examples and comparative examples discussed above are shown in Table 1 below.

Denier Twist (T / M) Strength (g / d) Elongation (%) Uniformity (U%) Compound Yarn Content (%) Knitting Fit Cotton yarn PTT Yarn Example 1 250 75 300-600 2.54 2.6 18.5 70 ○ Good Example 2 160 75 300-800 2.50 2.9 19.0 60 ○ Good Comparative Example 1 300 - - 1.77 1.6 32.6 - × - Comparative Example 2 250 - - 2.26 2.0 26.1 72 (Moshi) △ Somewhat uncomfortable Comparative Example 3 160 - - 2.24 1.9 26.1 64 (Moshi) △ Somewhat uncomfortable Comparative Example 4 250 75 200 2.51 2.1 23.6 70 △ Somewhat uncomfortable Comparative Example 5 250 75 900 2.41 1.9 18.3 70 △ Somewhat uncomfortable Comparative Example 6 250 75 300-600 2.54 2.6 18.5 40 ○ Somewhat uncomfortable Comparative Example 7 250 75 300-600 2.50 2.6 18.5 90 ○ Inconvenience

* Knitting (×: impossibility of manufacture, △: manufacturable but poor workability, ○: good knitting)

2 is a view showing the elongation of the yarn or composite yarn according to the embodiment and the comparative example of the present invention, Figure 3 is a view showing the uniformity of the yarn or composite yarn according to the embodiment and the comparative example of the present invention.

As can be seen from Table 1, FIG. 2 and FIG. 3, when the composite yarn is manufactured by yarn-covering PTT, which is a functional material yarn, to a spun yarn, and when the socks are knitted using the composite yarn, the composite yarn is not manufactured. It can be seen that the physical properties such as strength and elongation are increased, and the knitting is excellent. (Comparative Examples 1 to 3)

And it can be seen that by twisting the PTT yarn of 300 to 800 T / M to improve the strength and uniformity of Moshi / PTT composite yarn to improve the knitting and wearing comfort (Comparative Examples 4 and 5).

In addition, it can be seen that by preparing the socks in combination with the nylon / spandex covering yarn and rubber yarn with the content of ramie / PTT composite yarn of 50 to 80% (Comparative Examples 6 and 7).

Composite yarns using the woolen yarn of the present invention as described above is made by twisting and covering 300 denier or less PTT yarn of less than 75 denier PTT yarn of 300 to 800 T / M in the cross-section of the yarn of less than 300 denier improves the elongation and uniformity In addition, since the trimming does not occur during knitting, the productivity can be greatly improved, and the use of PTT yarns having a triangular cross section increases the flow of air to increase the freshness of the ramie.

In addition, Moshi / PTT composite yarn has a strength of more than 2.5g / d, elongation of 2.5%, uniformity of 20% or less, so that no threading occurs during knitting and no omission of knitting needles occurs. There is an effect that can greatly improve the productivity.

On the other hand, by combining the content of the ramie / PTT composite yarn 50 to 80% to prepare a sock in combination with nylon / spandex covering yarn, rubber yarn, etc., there is a tough feeling and a refreshing feel that is characteristic of the ramie has a strong and comfortable fit.

Claims (3)

Core yarn made of 250 denier (or less) denier yarn, and the yarn yarn covered with twist of 300 to 800 T / M twisted to the core yarn, characterized in that consisting of a binder yarn made of PTT yarn of 75 denier or less of the cross-section triangle Composite yarn using yarn. [Claim 2] According to claim 1, Composite yarn using a yarn yarn, characterized in that the composite yarn has a physical property of strength of 2.5g / d or more, elongation of 2.5% or more, even homogenizer 20% or less. The knitted socks, characterized in that the cooling and wearing comfort is excellent by setting the content of the composite yarn using the yarn of claim 1 or 2 to 50 to 80%.

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