KR101171012B1 - Method of preparing of mixed yarns and woven fabrics for woven fabrics with melange effect using the mixed yarns - Google Patents

Abstract

PURPOSE: A method for fabricating a fabric with a melange effect using spun blend yarn is provided to maintain basic physical property and to have excellent melage effect. CONSTITUTION: A method for fabricating a fabric with a melange effect using spun blend yarn comprises: a step of mixing 70-80 wt% of raw cotton and 20-30 wt% of polyester fiber; a step of supplying the mixed raw cotton and polyester fiber to a carding machine to prepare a sliver of 0.15-0.18 Ne; a step of extending the sliver at 8.0-8.3 of D/R ratio; a step of supplying the resultant to a flyer frame; a step of drafting and twisting to prepare roving of 1.2-1.4 Ne; a step of supplying the roving to a ring spinning frame; and a step of twisting.

Description

Method of preparing a fabric having a melange effect using the blended yarn and the blended yarn {Method of Preparing of Mixed Yarns and Woven Fabrics for Woven Fabrics with Melange Effect Using the Mixed Yarns}

The present invention relates to a method for producing a blended yarn while maintaining basic physical properties, a blended yarn produced by the method, a method for producing a fabric having a melange effect using the blended yarn and a fabric having a melange effect produced by the method.

Conventional melange yarns (1) are mixed so that the dyeing of the raw material fibers in various colors, so that various colors can be represented from a single strand of yarn, and (2) only a part of the raw fiber The remaining fibers were used without being dyed to exhibit the melange effect of the pre-dyed fibers.

However, in the case of (1), since the fibers must be dyed in various colors, there is a problem in that the dyeing process is complicated, thereby raising the manufacturing cost.

In order to exhibit such a melange effect, Korean Patent Laid-Open Publication No. 2002-0008287 discloses a flame retardant melange yarn fabric which is spun and spun and dyed an original staple fiber for dyeing on a flame retardant polyester staple fiber, and is woven into it. However, this is because the use of flame retardant fibers rather than for the visual effect of the melange, the fiber is not dyed and the melange effect is generated, Korean Patent Publication No. 2010-0115037 discloses the disadvantages of silk Disclosed are blended yarns in which woolen yarns are mixed with silk yarn, ramie yarns and / or cotton yarns to complement and impart a melange effect, but are also not blends for the visual effect of melange. It blends silk and other raw materials for the purpose of functional features. .

However, the present inventors have recognized the necessity of developing a blended yarn having a melange effect even when dyeing after weaving by mixing cotton and polyester fibers.

Republic of Korea Patent Publication No. 2002-0008287 Republic of Korea Patent Publication No. 2010-0115037

The present inventors endeavored to develop a blended yarn having excellent melange effect during dyeing while maintaining basic physical properties. As a result, the cotton and polyester blended yarns were manufactured through the blending process under specific conditions using cotton and polyester fibers in specific content ratios and spun under specific conditions. Eggplants were made of blended yarns and were dyed in yarn or woven fabrics to determine whether they had a melange effect.They had similar or better melange effects than cotton spun yarns, reducing manufacturing costs, shortening production periods, reducing the minimum production units, and implementing various colors. By confirming this possibility, the present invention was completed.

Accordingly, it is an object of the present invention to provide a method for producing a blended yarn.

Another object of the present invention is to provide a blended yarn produced by the method of the present invention described above.

Still another object of the present invention is to provide a method of manufacturing a fabric having a melange effect using the blended yarn of the present invention described above.

Another object of the present invention is to provide a fabric having a melange effect produced by the method of the present invention described above.

Other objects and advantages of the present invention will become more apparent from the following detailed description of the invention, claims and drawings.

According to one aspect of the present invention, the present invention provides a method for producing a blended yarn comprising the following steps: (a) mixing 70-80% by weight of raw cotton and 20-30% by weight of polyester fiber Mixed surface step; (b) a carding step of preparing a sliver with a fineness of 0.15-0.18 Ne by feeding the mixed raw material and polyester fiber of step (a) to a carding machine; (c) a softening step of stretching the sliver with a draft (hereinafter referred to as "R / O") gauge 36x42x45-42x50x63 at a draft (hereinafter referred to as "D / R") ratio 8.0-8.3; (d) The resultant of step (c) was fed to a pliers with a pliers rotational speed of 500-530 RPM and drafted at a D / R ratio of 11.0-11.5, giving a twist of 2.0-2.2 T / M to give 1.2-1.4 Ne A roughening step to prepare spinning; And (e) feeding the spinning yarn of step (d) to a ring spinning machine with a bobbin rotation speed of 10,000 RPM and drafting at a D / R ratio of 40-42, giving a twist of 5.0-5.2 T / M to give 10-60 Square step to produce a mixed yarn.

The present inventors endeavored to develop a blended yarn having excellent melange effect during dyeing while maintaining basic physical properties. As a result, the cotton and polyester blended yarns were manufactured through the blending process under specific conditions using cotton and polyester fibers in specific content ratios and spun under specific conditions. Eggplants were made of blended yarns and were dyed in yarn or woven fabrics to see if they had a melange effect.They had similar or better melange effects than conventional cotton spun yarns. It was confirmed that this is possible.

As used herein, the term "melange effect" refers to a whitish effect such that the appearance of the yarn of the blended yarn is frosted, and is optionally required for a special appearance effect in the textile products pursuing luxury. It is an element.

Hereinafter, described in detail step by step the method of the present invention for producing a blended yarn:

(a) Honta phase step ( Open and picking process )

First, the method of the present invention mixes the raw cotton and the polyester fiber in the blending process.

According to a preferred embodiment, 70 to 80% by weight of cotton and 20 to 30% by weight of polyester fiber are put into a blending machine so that each raw material is dispersed in a specific amount. The raw material is prepared and this process is important for maximizing the melange effect in the present invention. When the weight% is out of the range, a problem in that the blending effect of the melange effect is very low is generated.

The blended cotton and polyester fibers are randomly distributed in the fiber cross-section through the blending cotton group in a shape for maximizing the melange effect.

The polyester fiber used in the present invention has a fiber length of 38-50 mm and a single yarn fineness of 1.4-2 deniers.

(b) carding step (Carding process )

Next, a carding process is performed. Specifically, the raw material that has undergone the blending process manufactured as described above is supplied to a carding machine to remove foreign substances and short fibers present in the raw material which has undergone the blending process, and then, a sliver is manufactured.

The mixed fibers having undergone the blending machine maintain the raw material form after the blending process and are formed into slivers through a carding process. In the carding step, the fibers can be arranged uniformly in the longitudinal direction of the yarn and remove dust or contaminants that may be included in the fibers.

According to a preferred embodiment of the present invention, the raw cotton and polyester fibers of step (a) are fed to a carding machine to prepare a sliver with a fineness of 0.15-0.18 Ne.

According to a preferred embodiment of the present invention, the method of the present invention may optionally perform a combing process. Specifically, the sliver manufactured as described above may be supplied to a test surface machine to remove short short fibers, and the fibers may be arranged side by side in the axial direction of the sliver to manufacture a sliver.

(c) soft phase (Drawing process )

Next, a softening process is performed. Specifically, the sliver manufactured as described above is supplied to the softening machine and the softening gauge is specifically widened, and preferably stretched under the condition of R / O gauge 36x42x45-42x50x63 to reduce the linear density of the sliver, To improve the leveling system, several slivers are poached (doubling) and then stretched back to the thickness of the first one sliver. And, in this case, it can be repeated once or several times to differentiate the melange effect.

More preferably of the present invention, the softening process is performed under the conditions of 39x46x49 R / O gauge.

The specific equipment conditions of this softening process are important to maximize the melange effect.

According to a preferred embodiment of the present invention, the sliver is drawn to a D / R ratio of 8.0-8.3.

(d) Cao Fang step (Roving process )

Next, a roughening process is performed. In detail, the sliver having undergone the softening process as described above is supplied to the spinning machine to draw again to reduce the linear density of the sliver to manufacture the roving.

According to a preferred embodiment of the present invention, the resultant of step (c) is fed to a pliers with a pliers rotational speed of 500-530 RPM and given a twist of 2.0-2.2 T / M while drafting at a D / R ratio of 11.0-11.5 1.2-1.4 Prepare Ne slub.

(e) a square stage (Spinning process )

Finally, the roving which passed through the spinning process is supplied to a spinning machine to draw and twist, and then wound to prepare a blended yarn. As a spinning machine, a ring spinning machine, an open end spinning machine, or a rotor spinning machine can be used. The spinning process is carried out to match the final count and the number of twists, and the blended yarn after the spinning process is wound on the bobbin to meet a predetermined weight while eliminating defects (thickness, thinness, weakness, etc.).

According to another preferred embodiment of the present invention, the spinning yarn of step (d) is supplied to a ring spinning machine having a bobbin rotation speed of 1,000 RPM and drafted at a D / R ratio of 40-42 while twisting at 5.0-5.2 T / M 10 to 60 mixed yarns are prepared.

Blended yarns can be prepared in this way. The tensile strength of the blended yarn prepared by the method described above was 523 cN and the tensile elongation was 7.3%.

According to another aspect of the present invention, the present invention provides a blended yarn produced by the method of the present invention described above.

The blended yarn of the present invention has been produced by the above-described method of the present invention, and the content in common between the two is omitted in order to avoid excessive complexity of the specification according to the repeated description.

According to another aspect of the present invention, the present invention provides a method for producing a fabric having a melange effect, comprising the following steps: (i) preparing a blended yarn prepared by the method of the present invention as described above. step; (Ii) dyeing the cotton or polyester side of the blended yarn of step (iii) with a saline solution containing gray dye, wetting agent and antifoaming agent, or dyeing, wetting agent and antifoaming agent of different color respectively Dyeing with a saline solution containing; And (iii) preparing a fabric using the blended yarn of step (ii).

Hereinafter, the method of the present invention for producing a fabric having a melange effect by dyeing in a yarn state will be described in detail as follows:

(Iii) Preparation of the Blender

First, the method of the present invention prepares the blended yarn produced by the method of the present invention described above.

The blended yarn is produced by the above-described method of the present invention, and the contents common between the two are omitted in order to avoid excessive complexity of the specification according to the repeated description.

(Ii) dyeing the blended yarn

In addition, the method of the present invention dyes the cotton or polyester side of the blended yarn of step (i) with a saline solution containing a gray dye, a humectant and an antifoaming agent, or the cotton and polyester side are dyes of different colors, respectively. Stain with saline solution containing wetting and antifoaming agents.

When the cotton or polyester side of the blended yarn is dyed with a dye solution containing gray dye, wetting agent and antifoaming agent is called one-side dyeing, and the cotton and polyester side are dyes, wetting agent and antifoaming agent of different colors, respectively. Dyeing with salt solution containing is called Both-side dyeing.

Specifically, in the case of one-side dyeing, only the cotton side is dyed and the polyester remains ingrey or only the polyester is dyed and the cotton side is ingrey.

According to a preferred embodiment of the present invention, the saline solution is a saline solution containing 160 g / l dye, 5 g / l wetting agent, and 0.6 g / l antifoaming agent.

When using a dye of a different color can be used a variety of dyes known in the art, for example, iron trioxide red, ferric oxide, copper bromide phthalocyanine, C. children. Pigment blue 15: 3 and Carbon black can be used. Iron trioxide red is red, ferric oxide is reddish brown, copper bromide phthalocyanine is green, children. Pigment blue 15: 3 represents blue, and carbon black represents black.

(Iii) fabrication of the fabric using the dyed blended yarn

Finally, the fabric is prepared using the blended yarn of step (ii) above. The fabrication of the fabric can be made by a variety of methods known in the art.

In this way, it is possible to manufacture a fabric having a similar or superior melange effect than the conventional cotton spun yarn while maintaining the basic physical properties, manufacturing cost reduction, shortening the manufacturing period, the minimum production unit reduction and various colors.

According to another aspect of the present invention, the present invention provides a method for producing a fabric having a melange effect, comprising the following steps: (iii) preparing a blended yarn prepared by the method of the present invention as described above. ; (Ii) preparing a fabric using the blended yarn of step (iii); (Iii) dyeing the cotton or polyester side of the blended yarns of the fabric with a dye solution containing gray dyes, wetting agents and defoamers, or (b) dyeing, wetting agents and Dyeing with a saline solution containing an antifoaming agent.

Hereinafter, a detailed step-by-step description of the method of the present invention for producing a fabric having a melange effect by dyeing in the fabric state:

(Iii) Preparation of the Blender

First, the method of the present invention prepares the blended yarn produced by the method of the present invention described above.

The blended yarn is produced by the above-described method of the present invention, and the contents common between the two are omitted in order to avoid excessive complexity of the specification according to the repeated description.

(Ii) fabrication of the fabric using the blended yarns

Then, the fabric is prepared using the blended yarn of step (iii). The fabrication of the fabric can be made by a variety of methods known in the art.

(Iii) dyeing the fabric

Finally, the step (ii) dyeing the cotton or polyester side of the blended yarns of the fabric with a saline solution containing gray dyes, wetting agents and defoamers, or dyeing, wetting agents and Stain with saline solution containing antifoam.

The dyeing is common to the method for producing a fabric having a melange effect by dyeing in the yarn state described above, and the description thereof is omitted in order to avoid excessive complexity of the specification according to the repeating description.

In this way, it is possible to manufacture a fabric having a similar or superior melange effect than the conventional cotton spun yarn while maintaining the basic physical properties, manufacturing cost reduction, shortening the manufacturing period, the minimum production unit reduction and various colors.

According to another aspect of the present invention, the present invention provides a fabric having a melange effect produced by the above-described method of the present invention.

Using the fabric, it is possible to manufacture clothes or socks.

Fabrics having a melange effect of the present invention are manufactured by the above-described method of the present invention, and the contents common between the two are omitted in order to avoid excessive complexity of the specification according to the repeated description.

The features and advantages of the present invention are summarized as follows:

(Iii) The present invention is prepared by mixing 70-80% by weight of raw cotton and 20-30% by weight of polyester fibers, blended yarns produced through the softening process of the specific equipment conditions and fabrics having a melange effect using the same It is about a method.

(Ii) The blended yarn of the present invention exhibited tensile strength of 523 cN and tensile elongation of 7.3% to maintain basic physical properties as a spun yarn.

(Iii) In addition, the blended yarn of the present invention was prepared, and dyed in a yarn state or fabric was manufactured using the blended yarn, and then dyed. As a result, a melange effect was obtained.

(Iii) On the other hand, the method of the present invention for producing the blended yarn in a specific content and specific conditions, the production period of the fabric is shortened, the production cost of the fabric is reduced, the minimum production unit of the fabric production is reduced, easily various colors It is expected to be able to express.

1 is a photograph showing the melange effect after dyeing the fabric produced using the blended yarn according to an embodiment of the present invention.
1 is a photograph showing the result of dyeing the fabric produced using a general cotton yarn prepared according to an embodiment of the present invention.
Figure 2 is a photograph showing the melange effect after dyeing the fabric produced using the blended yarn according to an embodiment of the present invention.

Hereinafter, the present invention will be described in more detail with reference to Examples. These examples are only for illustrating the present invention in more detail, it will be apparent to those skilled in the art that the scope of the present invention is not limited by these examples in accordance with the gist of the present invention. .

Example

Preparation Example 1 Preparation of Blended Yarn

By crushing 3.75 kg of raw cotton and 1.25 kg of polyester fiber, the blending process is performed using MBK Evener R / O (300 RPM), 3-Blade Beater (500 RPM) and SW3 Beater (500 RPM). The sling of 0.17 Ne was manufactured by a carding process using Flat-Cylinder Gauge 14/1000 "and Take-in Roll (800 RPM), and the softening process was R / O Gauge: 39x46x49 and D / R. It was carried out under the equipment condition of the ratio 8.1, and carried out a spinning process for producing 1.3 Ne spinning yarn at the conditions of R / O gauge: 36x48x46, Flyer RPM: 500, TM: 2.0 and D / R ratio: 11, The silver ring spinning machine was used under conditions of Spindle RPM: 10,000, TM: 5.0, and D / R ratio: 40, and the number of yarns was 10-60, considering yarn strength and weaving. The blended yarn prepared in Preparation Example 1 was used in Example 1.

Comparative Production Example 1 Preparation of General Cotton Spun Yarn

100% by weight of raw cotton was mixed with MBK Evener R / O (500 RPM), Opener Beater (700 RPM) and SW3 Beater (700 RPM), and the softening process was R / O gauge 33x38x42. And it was carried out in the same manner as in Preparation Example 1 to perform under the instrument conditions of D / R ratio 6.8. And, cotton spun yarn prepared in Comparative Preparation Example 1 was used as Comparative Example 1.

Preparation Example 2 Dyeing of Blended Yarn and Fabrics

Fabrics prepared by dyeing the blended yarns and spun yarns prepared in Preparation Example 1 and Comparative Preparation Example 1 were used as Example 2 and Comparative Example 2, respectively, and the blended yarns and yarns prepared in Preparation Example 1 and Comparative Preparation Example 1 were used. The dyed fabric was used in Example 3 and Comparative Example 3, respectively.

The method of dyeing the blended yarn (or spun yarn) and the fabric is cotton by padding the yarn (blend yarn) or fabric with a saline solution containing 160 g / l of a gray dye, 5 g / l of a wetting agent, and 0.6 g / l of an antifoaming agent. Only the side was stained for 2 hours. And, the dyed fabric of Example 3 is shown in the left photo of FIG. 1 and FIG. 2, and the dyed fabric of Comparative Example 3 is shown in the right photo of FIG.

1 and 2 as a result, the general posterior fabric (right picture of FIG. 1, Comparative Example 3) is uniform in color, only one color is visible, the left picture of FIG. 1 or Example 2 and FIG. The fabric of 3 was found to have a good melange effect because the dark and light portions were properly arranged for each part of the fabric, which was meaningful in that it was expressed by posterior dye.

Experimental Example 1 Measurement of Basic Physical Properties

Tensile strength and tensile elongation of the blended yarn of Example 1 prepared in Preparation Example 1 were measured by the test method of KS K 0409: 2006 CRE, respectively. As a result, the tensile strength was 523 cN and the tensile elongation was 7.3%.

As described above, specific parts of the present invention have been described in detail, and it is apparent to those skilled in the art that these specific technologies are merely preferred embodiments, and thus the scope of the present invention is not limited thereto. Thus, the substantial scope of the present invention will be defined by the appended claims and equivalents thereof.

Claims (6)

Method for preparing a blended yarn comprising the following steps:
(a) a blending step of mixing 70-80% by weight of raw cotton and 20-30% by weight of polyester fiber;
(b) a carding step of preparing a sliver with a fineness of 0.15-0.18 Ne by feeding the mixed raw material and polyester fiber of step (a) to a carding machine;
(c) a softening step of stretching the sliver to a D / R ratio (draft ratio) 8.0-8.3 under conditions of an R / O gauge (roller gauge) 36x42x45-42x50x63;
(d) The resultant of step (c) was fed to a pliers with a pliers rotational speed of 500-530 RPM and drafted at a D / R ratio of 11.0-11.5, giving a twist of 2.0-2.2 T / M to give 1.2-1.4 Ne A roughening step to prepare spinning; And
(e) feeding the spinning yarn of step (d) to a ring spinning machine with a bobbin rotation speed of 10,000 RPM and drafting at a D / R ratio of 40-42, giving a twist of 5.0-5.2 T / M and mixing 10-60 water Square step to prepare the yarn.
delete Method for producing a fabric having a melange effect comprising the following steps:
(Iii) preparing a blended yarn prepared by the method of claim 1;
(Ii) dyeing the cotton or polyester side of the blended yarn of step (iii) with a saline solution containing gray dye, wetting agent and antifoaming agent, or dyeing, wetting agent and antifoaming agent of different color respectively Dyeing with a saline solution containing; And
(Iii) preparing a fabric using the blended yarn of step (ii).
Method for producing a fabric having a melange effect comprising the following steps:
(Iii) preparing a blended yarn prepared by the method of claim 1;
(Ii) preparing a fabric using the blended yarn of step (iii);
(Iii) dyeing the cotton or polyester side of the blended yarns of the fabric with a dye solution containing gray dyes, wetting agents and defoamers, or (b) dyeing, wetting agents and Dyeing with a saline solution containing an antifoaming agent.
The method according to claim 3 or 4, wherein the saline solution is a saline solution containing 160 g / l of dye, 5 g / l of wetting agent, and 0.6 g / l of antifoaming agent.
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