KR100894546B1 - Elongate fabric and A method of preparing the same using continuous dyeing process - Google Patents

Abstract

The present invention relates to a stretchable fabric using a continuous dyeing method and a method for manufacturing the same, and specifically, using a continuous dyeing method on a woven fabric in which latent crimping yarn is used as a warp or weft yarn with a polyolefin-based, polyester-based or polyacrylic-based resin. The present invention relates to an elastic fabric using a continuous dyeing method and a method for manufacturing the same, wherein the elastic fabric is manufactured at the same time as dyeing.

Latent winding house, elasticity, continuous dyeing, processing

Description

Elongate fabric and A method of preparing the same using continuous dyeing process

The present invention relates to an elastic fabric and a method for manufacturing the same, and specifically, through continuous dyeing processing of woven dough using latent crimping yarn, an excellent elasticity and continuous elastic recovery are exerted at the same time as dyeing to provide an elastic fabric. It relates to a stretch fabric using a continuous dyeing method and a method of manufacturing the same.

The conventional method of producing a good stretch fabric is a method of obtaining a high stretch fabric by using a polyurethane fiber (spandex), but the wet heat of 110 to 130 ℃ when dyeing using a liquid dyeing machine (Rapid) by dip dyeing process The spreading phenomenon occurs that the inherent elasticity of the polyurethane fiber is lowered under high temperature. In addition, the lead time of the dyeing process is long, the production amount is lowered, thereby increasing the manufacturing cost, there is a disadvantage that the color difference between lots (Lot) is large.

 When continuous dyeing is used, the spreading of polyurethane fibers also occurs under dry heat and high temperature at a working temperature of 190 to 210 ° C. In particular, it is more dangerous during the reworking process, the process failure rate is increased, and the spandex sagging due to the repeated tension process is worsened when worn. In addition, the price increase factor by the use of a polyurethane fiber was large, and the washing shrinkage rate (shape stability) and strength of the final product fell. Because of this, it is not suitable for use as a raw material for active sports, student clothes, office clothes, work clothes.

 In order to solve the above disadvantages, Japanese Patent Laid-Open No. 2006-97172 discloses a method for manufacturing a mixed-dyed color fabric by performing a dyeing treatment after refining a mixed fabric of a polyester fiber and a polyurethane fiber. Mixing and dyeing of polyester fiber and polyurethane fiber to prevent refining of the breakdown of polyurethane fiber and the occurrence of defective products with reduced elasticity and uniformity by performing refining treatment with treatment water containing active agent and metal ion sequestrant A method of manufacturing color fabric has been proposed.

However, the above method has a cumbersome disadvantage in the treatment after use of the added metal ion sequestrant, and the above-mentioned disadvantages are not completely eliminated.

On the other hand, the manufacturing method of the elastic fabric, in addition to the above method, the method of using filament twisted yarn was proposed in the Republic of Korea Patent Invention No. 25,693, which is more elastic than the product using elastic fibers such as polyurethane due to the limitation of elasticity of the twisted yarn There is a falling problem.

In general, doughs woven using latent barn as warp or weft have little elasticity. Dough fabrics woven using such latent crimping yarns have been conventionally dyed by pad batch method, such as dip dyeing, semi-continuous dyeing, and have been given 10 to 40% of elasticity and continuous elastic recovery. However, the dyeing and pad placement method may have a long lead time and a large color difference between lots.

In order to solve the above problems, an object of the present invention is to provide elasticity at the same time dyeing, stretchability does not deteriorate even at a high temperature during the dyeing process, having a shape stability and excellent strength.

In addition, by manufacturing the fabric using a fiber in the form of a cross-sectional shape to provide a stretch fabric that is always comfortable when worn, excellent wash and wear properties.

In addition, the lead time is short when dyeing, and to provide an elastic fabric that is expressed uniform color between lots.

In order to achieve the above object, the present invention, in the stretch fabric using the continuous dyeing method, polyolefin-based, polyester-based or polyacrylic-based resin is used as a dyeing or weft yarn of latent weaving yarn using a continuous dyeing method At the same time provides a stretch fabric using a continuous dyeing method characterized in that the stretch fabric is produced.

In addition, the present invention provides a stretch fabric using a continuous dyeing method, characterized in that the latent crimped yarn is mixed with 30 to 300 parts by weight of polytrimethylene terephthalate in 100 parts by weight of polyethylene terephthalate.

In addition, the present invention provides a stretch fabric using a continuous dyeing method characterized in that the shape of the latent crimp yarn is circular or heteromorphic cross-sectional shape, in particular peanut shape.

In addition, the present invention is characterized in that when the latent crimp yarn is a filament, filament, the single yarn fineness is 1 to 5 denier (D), the total fineness is 30 to 300 denier, when the staple fiber, It provides an elastic fabric using the continuous dyeing method, characterized in that the number of cotton 10 to 60.

In addition, the present invention is a method for producing a stretch fabric using a continuous dyeing method, a dough production step made by weaving a polyolefin-based, polyester-based or polyacrylic resin is woven or used as a warp or weft yarn latent crimped yarn; And it provides a method for producing a stretch fabric using a continuous dyeing method characterized in that it comprises a dyeing processing step is given at the same time the elasticity and dyeing the dough.

In addition, the present invention provides a method for producing a stretchable fabric using the continuous dyeing method, characterized in that the latent crimped yarn is mixed with 30 to 300 parts by weight of polytrimethylene terephthalate in 100 parts by weight of polyethylene terephthalate.

In addition, the present invention is a stretchable fabric using the continuous dyeing method characterized in that the latent yarn is produced by a direct wire drawing (DSD) or POY (Partially Oriented Yarn) manufactured by DW (Drop Wire) It provides a method of manufacturing.

In addition, the present invention provides a method for producing a stretchable fabric using a continuous dyeing method, characterized in that the shape of the latent crimp yarn is circular or heteromorphic cross-sectional shape, in particular peanut shape.

In addition, the present invention is characterized in that the latent crimp yarn is a filament or staple fiber, in the case of filament, the single yarn fineness is 1 to 5 denier (D), the total fineness is 30 to 300 denier, It provides a manufacturing method of the elastic fabric using the continuous dyeing method, characterized in that the number of cotton 10 to 60.

In addition, the present invention is a pre-treatment step of washing the sizing foil buried in the dough produced by the dyeing step is a latent winding yarn; A first dry heat treatment step to uniform heat history on the pretreated dough and prevent crease during dyeing; a dyeing step of providing a stretch fabric by treating dry heat and dye on the first dry heat treated dough; The unfixed dye and the preparation of the cleaning step is removed to provide a vivid color; Second dry heat treatment step to stabilize the shape of the washed fabric; And it provides a method for producing a stretch fabric using a continuous dyeing method characterized in that it comprises a post-processing step imparted functionality or sensitivity to the secondary dry heat-treated fabric.

In addition, the present invention provides a method for producing a stretch fabric using a continuous dyeing method, characterized in that the temperature in the first dry heat treatment step is 100 to 200 ℃, 1 to 20% expanded state.

In addition, the present invention proceeds by the continuous dyeing method in the dyeing step, the continuous dyeing is padded with a dye, squeezed the salt solution with manglow of 1 kgf / ㎠ to 5 kgf / ㎠ 40 to 40 in dry heat at a temperature of 150 to 220 ℃ It provides a method of manufacturing an elastic fabric using a continuous dyeing method characterized in that the dye is fixed and developed by heat treatment for 160 seconds.

In addition, the present invention provides a method for producing a stretch fabric using a continuous dyeing method, characterized in that the dye in the dyeing step is made of one or more selected from the group consisting of disperse dyes, reactive dyes, bat dyes or direct dyes.

In addition, the present invention is a continuous dyeing method characterized in that at least one selected from the group consisting of scattering, wool processing, antistatic processing, water repellent, wrinkle processing, deep color processing, UV shielding, coating processing in the post-processing step It provides a method of manufacturing a stretch fabric used.

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

As used herein, the terms "about", "substantially", and the like, are used at, or in close proximity to, numerical values when manufacturing and material tolerances inherent in the meanings indicated are intended to aid the understanding of the invention. Accurate or absolute figures are used to assist in the prevention of unfair use by unscrupulous infringers.

As used herein, the term "fabric" is used to include all articles, nonwoven fabrics and fibrous webs produced by weaving or knitting.

In the present invention to produce a stretch fabric, the dough is produced using a latent crimping yarn, and processed by the continuous dyeing method to be dyed and stretch fabric can be produced at the same time.

Here, the dough means that the fabric as it is woven in the loom is not processed such as refining, bleaching, dyeing. It is mainly used for cotton fabrics and knitted fabrics and is shipped as raw materials as raw materials or sent to processing plants for processing. Silk fabrics or filaments using filaments are called greige (grege) or gregia (greggia).

The latent crimped yarns are conjugated yarns and textured yarns. For example, the conjugated yarns are manufactured by complex spinning of bishrinkable yarns having different raw materials. Abundantly exerted. In addition, the texture yarn (textured yarn) is a high elongation yarn that has elasticity or bulkiness by giving permanent deformation of coils, curls, crimps, loops, etc. to synthetic filaments or staple fibers It is defined as an aggregate of non-parallel fibers imparted either planar or three-dimensional crimp by physical means.

1 is a manufacturing process of the stretchable fabric according to an embodiment of the present invention. Referring to Figure 1, the stretch fabric of the present invention can be produced by proceeding to the dough manufacturing step S100 and the dyeing processing step S200 used latent crimping yarn.

First, in the dough manufacturing step S100, the raw material of the dough may include a polyolefin-based, polyester-based or polyacrylic resin. In particular, in the present invention, polytrimethylene terephthalate (PTMT) is preferably 30 to 300 parts by weight based on 100 parts by weight of polyethylene terephthalate (PET). If the PTMT is less than 30 parts by weight, the elasticity does not appear, if it exceeds 300 parts by weight, there is a problem that the manufacturing cost is increased with excessive elasticity.

Direct Spinning & Drawing (DSD) may be used to prepare latent yarn as a raw material prepared as described above, or a DW (Drop Wire) twister may be used to manufacture POY (Partially Oriented Yarn). In addition, the latent crimping yarn during spinning is preferably manufactured in the form of a circular or shaped cross-section yarn, especially when manufactured in the form of a peanut-shaped shaped cross-section yarn, the cross-sectional area of the yarn is high, and when woven into the fabric, it has a bulky property to absorb sweat. It is good, breathable and dries quickly so you always have a comfortable fit.

In addition, the single yarn fineness of the spun biaxial filament filament is preferably 1 to 5 denier (D) (D). Because, when the single yarn fineness is less than 1 denier, the elasticity of the manufactured fabric is lowered, the manufacturing cost is increased, if the single yarn fineness is more than 5 denier because the elasticity of the manufactured fabric is too strong, there is a problem that the handfill is counted a lot to be.

On the other hand, it is preferable that the latent crimping yarn has an aggregate fineness of 30 to 300 deniers (D) as the aggregate of the spun and stretched fibers. This is because when the total fineness is less than 30 denier, the elasticity of the latent crimp is not expressed, and when the total fineness is greater than 300 denier, it is too stiff to be used for clothing with too strong elasticity and the handfill is counted a lot.

In addition, when the latent crimping yarn of the present invention is a staple fiber, it is preferable that the number is 10 to 60 in the number of cotton yarn. This is because when the staple fiber is less than 10, the handfill is not so good that it is too stiff, and when the staple fiber is more than 60, the durability may be lowered three times.

Weaving or knitting the yarn wound and stretched to produce a latent weft yarn with a warp or weft yarn to complete the dough including the latent weft yarn. The dough may include all of the arrangements with other materials other than the latent house.

Dough produced using the latent crimps prepared above is not stretchable, and can be dyed by selecting from a pad batch method or a continuous dyeing method of dip dyeing, semi-continuous dyeing to express elasticity, but continuous It is preferable to carry out by dyeing process.

The continuous dyeing is provided by uniform dyeing and dyeing stability by immersing the dye in a salt solution and stirring it, and then fixing the dye to the fabric by dry heat or steam.

Figure 2 is a dyeing process according to a preferred embodiment of the present invention.

Referring to Figure 2, but the dyeing process by the continuous dyeing method in the present invention, the pre-treatment step S210, the first dry heat treatment step S220, the dyeing step S230, washing step S240, the second dry heat treatment step S250, can be proceeded to the post-processing step S260 have.

First, in the pre-treatment step S210, in the step of weaving or knitting the dough in the weaving step of the dough manufacturing step including the latent crimping yarn to be sufficiently buried to prevent the trimming and the weaving or knitting quality improvement In the pretreatment method, the pretreatment method first absorbs moisture into the dough, penetrates the crude solution in which starch is dissolved, decomposes the sizing agent, and then washes with water to proceed with the pretreatment step.

The pretreated dough is subjected to a primary dry heat treatment step S220 at 100 to 200 ° C. in a heat treatment machine. At this time, the heat treatment is expanded to 1 to 20% of the width of the pretreated dough, and the overfeed is managed so that the desired density is produced depending on whether the forge is a stretch fabric or a bidirectional stretch fabric. This is because when the primary dry heat treatment temperature is less than 100 ° C., wrinkles may occur during dyeing, and when it exceeds 200 ° C., penetration of the salt solution becomes difficult during dyeing. In addition, when the spreading rate of the dough is less than 1%, there is a fear that the width of the dough is reduced, if it exceeds 20%, there is a fear that the width of the dough is increased and the elasticity is reduced.

This step prevents wrinkles, smooths the surface, prevents uneven dyeing and makes the heat history of the forge before dyeing uniform, and makes the internal heat distribution uniform for preventing crease during dyeing.

While the dyeing step S230 is carried out on the first dry heat-treated dough, the fabric having elasticity is manufactured through the dyeing step. The dyeing step is a continuous dye padding in the pad dry disperse dye, reactive dye, bat (VAT) dye, or direct dye, squeeze the salt solution with a mangle of 1 kgf / ㎠ to 5 kgf / ㎠ and then 150 to 220 ℃ Heat-treat for 40 to 160 seconds in dry heat so that the disperse dyes are fixed. At this time, the temperature deviation management in the chamber is very important. This is because when the temperature is less than 150 ° C. or 40 seconds, the provision of elasticity of the final fabric is weak, and when the temperature exceeds 220 ° C. or 160 seconds, it is solidified by heat setting and the handfill becomes too strong.

The latent crimping yarn of the present invention is used as the warp or weft of the fabric, and the crimp like spring of the latent crimping yarn itself is produced by high heat (60-210 ° C.) during the dyeing process even without using elastic fibers such as polyurethane fibers (spandex). Formation allows for expression of elasticity. The dyeing process may be any one as long as it can be dyed at a high temperature, but in the present invention, it is preferable to proceed with the continuous dyeing method.

 The dyed fabric may be a washing step (S240) to wash the unfixed dye and the preparation. In the case of teaching materials, direct dyes, reactive dyes, or bat dyes are developed in moist heat at 60 to 130 ° C., followed by a washing step to express more vivid colors.

The secondary dry heat treatment step S250 is performed at 100 to 200 ° C. in a heat treatment machine having a uniform heat distribution on the fabric that has undergone the cleaning step. This step ensures the surface smoothness, shape stability of the fabric. Overfeed and redistribution ensure that the required result is obtained.

The stretch fabric manufactured by using the latent crimping yarn completed through the second dry heat treatment step is finally subjected to a post-processing step S260 that imparts functionality such as scattering and wool processing, but can be selectively selected to proceed. have.

As described above, the stretchable fabric of the present invention has a stretchable yarn of 10 to 40% due to the formation of a crimp-like crimp of the latent crimping yarn itself by the high temperature dry heat during continuous dyeing as the yarn is used as the warp or weft of the yarn. It has the effect of being expressed, having semi-permanent elasticity and elastic recovery, and providing morphological stability and excellent strength.

In addition, the use of a sectional section yarn as a latent crimping yarn provides good sweat absorption, good breathability, and quick drying of sweat-absorbing properties, thereby providing a comfortable fit and wash and wear property when applied to clothing.

In addition, by using the continuous dyeing process, the elasticity is given simultaneously with the dyeing to maximize the yield, and the operation of large lots is easy, and the lead time is shorter than that of the rapid or semi-continuous dyeing. It is possible to make uniform dyeing without color difference.

In addition, due to the above effects there is an effect applied to student clothes, office clothes, work clothes, active sports clothing and the like.

Through the following examples will be described in more detail.

Example 1

100 parts by weight of polytrimethylene terephthalate was mixed with 100 parts by weight of polyethylene terephthalate to prepare 150 denier (D) latent crimping yarns using the POY-DW method. Thereafter, T65R 30/1 (polyester: rayon multifilament = 65:35 wt%, 30's single yarn) was used as a warp, and T65R 30/1 and the latent crimping yarn were picked 1: 1 using a weft fabric. After the preparation, the dyeing process at a dry heat temperature of 210 ℃ by a continuous dyeing method to complete the stretch fabric.

Example 2

In the same manner as in Example 1, a latent crimp yarn of 75 denier was prepared, used as a weft yarn, and T65R 40/1 was used as a warp yarn.

Comparative Example 1

Same as Example 1 except that T65R 30s core (40 denier spandex) was used as the weft and T65R 30/1 was used as the warp.

Comparative Example 2

Same as Example 1 except that T65R 40s core (40 denier spandex) was used as the weft and T65R 40/1 was used as the warp.

* Test Methods

1. Elasticity and elastic recovery

Elasticity was measured by KSK 0352 5.2.2, and elastic recovery was measured by KSK 0541.

2. Tensile Strength

It was measured by the measurement method of KSK 0520.

3. Confirmation of elasticity reduction after reinflammation

The fabrics, which were first processed, were subjected to three times of dry heat and high temperature greening at 210 ° C. for 80 seconds by continuous dyeing, and the elasticity of each fabric was measured by the measuring method of KSK 0532 5.2.2.

4. Washing shrinkage rate

It was measured by the measurement method of KSK 0465.

The measurement results tested by the above method are as follows.

NO. division unit Example 1 Example 2 Comparative Example 1 Comparative Example 2 One Elasticity (weft) % 25 20 27 24 2 Elasticity recovery (weft) % 92 94 89 87 3 Tensile Strength (Slope / Weft) kgf 66/52 46/40 65/40 49/30 4 Wash shrinkage rate (inclined / weft) % -0.4 / -0.4 -0.6 / -0.8 -2.8 / -2.0 -3.0 / -2.4 5 Elasticity after 1 infection (weft) % 23 18 18 16 6 Elasticity after 2 infections (weft) % 23 18 18 16 7 Elasticity after 3 infections (weft) % 23 18 18 16

As shown in Table 1, the stretch fabric prepared by the method of Example 1 and Example 2 prepared by the present invention compared to Comparative Example 1 and Comparative Example 2 stretch and stretch recovery, washing shrinkage rate and tensile strength It was good, and even after re-inflammation, the elasticity did not fall significantly, and it was confirmed that an excellent effect was exhibited.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

1 is a manufacturing process of the stretchable fabric according to an embodiment of the present invention.

Figure 2 is a dyeing process according to a preferred embodiment of the present invention.

Claims (14)

In the stretch fabric using the continuous dyeing method, Polytrimethylene terephthalate is mixed with 30 to 300 parts by weight of polyethylene terephthalate, and spun and stretched latent crimp yarn is used as warp or weft yarn. Elastic fabric using a continuous dyeing method characterized in that. delete The method of claim 1, The latent crimping yarn is a stretchable fabric using a continuous dyeing method, characterized in that the cross-section yarn. The method of claim 1, The latent crimping yarn is a filament or staple fiber, and in the case of filament, the single yarn fineness is 1 to 5 deniers (D), and the total fineness is 30 to 300 deniers. Elastic fabric using a continuous dyeing method, characterized in that from 60 to 60. In the manufacturing method of the stretch fabric using the continuous dyeing method, A dough manufacturing step in which polytrimethylene terephthalate is mixed with 30 to 300 parts by weight of polyethylene terephthalate to be woven by spinning and stretching latent crimping yarns as warp or weft yarns; And Method for producing a stretch fabric using a continuous dyeing method characterized in that the dyeing process is provided at the same time as the dough is provided with elasticity. delete The method of claim 5, The latent crimping yarn is a method of manufacturing a stretch fabric using a continuous dyeing method, characterized in that the direct spinning and drawing (DSD) or POY (Partially Oriented Yarn) is manufactured by a DW (Drop Wire) twisting machine. The method of claim 5, The latent crimping yarn is a method for producing a stretchable fabric using a continuous dyeing method, characterized in that the cross-section yarn. The method of claim 5, The latent crimping yarn is a filament or staple fiber, in the case of filaments, the single yarn fineness is 1 to 5 deniers (D), and the total fineness is 30 to 300 deniers. Method for producing a stretch fabric using the continuous dyeing method, characterized in that from 60 to 60. The method of claim 5, The dyeing step may be a pre-treatment step of washing the sizing foil buried in the dough manufactured using the latent crimping yarn; A first dry heat treatment step to uniform heat history on the pretreated dough and prevent crease during dyeing; A dyeing step of providing a stretch fabric by treating dry heat and dye to the first dry heat treated dough; A washing step of removing unfixed dyes and preparations of the dyed fabric to provide a vivid color; A secondary dry heat treatment step of stabilizing the washed fabric; And Method for producing a stretch fabric using a continuous dyeing method characterized in that it comprises a post-processing step that is imparted functionality or sensitivity to the secondary dry heat treated fabric. The method of claim 10, In the first dry heat treatment step, the temperature is 100 to 200 ℃, the manufacturing method of the stretch fabric using a continuous dyeing method, characterized in that proceeds in a 1 to 20% expanded state. The method of claim 10, The dyeing step proceeds by a continuous dyeing method, the continuous dyeing is padded with dye, squeezed the salt solution with a mangle of 1 kgf / ㎠ to 5 kgf / ㎠ and heat-treated for 40 to 160 seconds in a dry heat of 150 to 220 ℃ temperature Method for producing a stretch fabric using a continuous dyeing method, characterized in that the dye is fixed and developed. The method of claim 10, In the dyeing step, the dye is a method of manufacturing a stretch fabric using a continuous dyeing method, characterized in that at least one selected from the group consisting of disperse dyes, reactive dyes, bat dyes or direct dyes. The method of claim 10, Preparation of elastic fabric using the continuous dyeing method characterized in that at least one selected from the group consisting of scattering, wool processing, antistatic processing, water repellent processing, wrinkle processing, deep color processing, UV shielding processing, coating processing in the post-processing step Way.

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