RU2290463C2 - Jersey fabric having the high washing fastness and the sun-light resistance and the method of the jersey fabric production - Google Patents

Abstract

FIELD: textile industry; methods of jersey fabric production.

SUBSTANCE: the invention is pertaining to the field of textile industry, in particular, to the method of production of the jersey fabric having the high washing fastness and the sun-light resistance. The jersey fabric has the ultra-thin fiber, which includes the mass colored component selected from the group consisting of the carbon black, pigments and dyes. On its front side and-or the wrong side and has the washing fastness exceeding the values 2-3, and the sun-light resistance exceeding the value 5. The true invention presents the method providing, that the conjugated fiber of the sea-island type, in which the dyed in mass component, such as carbon black or similar, is contained in the fiber-forming component, is used as the front side yarn and-or the wrong side yarn. The technical result of the invention is production of the jersey fabric having the high washing fastness and the light resistance and made out of the ultra-thin fibers of the sea-island type in the form of the front side yarn and-or the wrong side yarn.

EFFECT: the invention ensures production of the jersey fabric having the high washing fastness and the light resistance and made out of the ultra-thin fibers of the sea-island type in the form of the front side yarn and-or the wrong side yarn.

20 cl, 2 tbl, 15 ex

Description

The present invention relates to a knitted fabric having high washing resistance and light fastness, and to a method for producing a knitted fabric.

If the fiber becomes thinned, its bending resistance becomes weakened. Accordingly, since the fabrics obtained from the ultra-thin fiber are very soft to the touch, research is being carried out very actively towards obtaining such ultra-thin fiber at a commercial level. In addition, the development of technology that allows you to get extremely thin thread, leads to a significant increase in the quality of products from thin materials for fabrics.

Typically, the method of producing ultrafine fiber is divided into three methods: a continuous spinning method, a bicomponent separation type spinning method, and a bicomponent dissolution type spinning method. Using the continuous spinning method, it is possible to obtain an ultra-thin fiber of 0.3-0.5 denier. By a spinning method of the type of bicomponent separation, an ultrafine fiber of 0.2 denier can be obtained. By a spinning method of the type of bicomponent dissolution, an ultrafine fiber of denier 0.001 denier or lower can be obtained.

A variety of ultra-thin fiber products are being developed for textile applications. However, products with ultra-thin fiber are not designed for knitted applications, in particular with applications in warp knitted fabrics, due to several drawbacks that appear in warp and subsequent processes.

In the case where the 0.3-0.5 denier ultrafine fiber obtained by the continuous spinning method is used for knitting, warping ability and knitting ability are very poor since numerous filaments are scattered. In addition, the specific surface area of the yarn is increased, which thus makes the bristling ability and processability poor, and the knit thus obtained is inhomogeneous in its bristled fiber and very poor in appearance.

In the case where the 0.2 denier ultrafine fiber obtained by the conjugate spinning method of the bicomponent separation type, consisting of nylon / polyester, is used for knitwear, warpability, knitting ability and teasing ability are very poor, so how nylon is separated from the polyester by tension and friction during warping and knitting, because nylon and polyester are incompatible with each other. In addition, the appearance of the resulting knitwear is very poor due to the heterogeneity of the nap fibers. In addition, since nylon and polyester are mixed, knitting is difficult for dyes, and its color fastness is low.

In the case where the knitwear is obtained with a sea-island conjugate fiber of 0.001-0.3 denier obtained using an alkali-readily soluble copolymerized polyester as a sea component and a regular polyester as an island component using a bicomponent spinning method dissolution, warping ability, teasing ability and knitting ability are good; however, the resistance to washing and light fastness of knitwear are low due to poor dyeability, which is a characteristic of polyester (component island).

Knitted fabric containing ultra-thin thread is known (see, for example, patent RU 2011702, D 01 F 8/06, 04/30/1994).

However, such a knitted fabric has insufficient resistance to washing and light fastness.

The present invention is to obtain a knitted fabric with high washing resistance and light fastness, which can skip the dyeing process when knitting a knitted fabric using a sea-island type conjugate fiber that contains a mass-dyed component as a fiber-forming component, such as a facial weave and / or wrong weave, and then the dissolution of the sea component of the sea-island conjugate fiber upon receipt of a warp knitted fabric or round knit th knitted fabric.

The present invention provides for the creation of a knitted fabric having high washing resistance and light fastness, which has very good processability, such as processability by warping and knitting, and a method for producing it.

This object is achieved due to the fact that a knitted fabric having high washing resistance and light fastness contains an ultra-thin thread, including a mass-dyed component selected from the group consisting of carbon black, pigments and dyes, on the face and / or inside, when this knitted fabric has a washing resistance of more than a value of 2-3, and light fastness of more than a value of 5.

Preferably, the content of the dyed component in the ultrafine filament is 0.1-15 wt.%.

Even more preferably, the monofilament fineness of the ultrafine filament is 0.001-0.3 denier.

Additionally, the mass-dyed component may include black pigments or black dyes.

In addition, the knitted fabric may be a warp knitted fabric consisting of a facial weave made of ultra-thin yarn, including a component dyed in bulk, and a purl weave made of high-shrink yarn or synthetic yarn.

Another embodiment of a knitted fabric is a warp knitted fabric consisting of a front weave made of ultra-thin yarn, including a mass-dyed component, a purl weave made of high-shrink yarn or synthetic yarn, and an intermediate weave made of spandex elastic yarn.

In addition, the high shrink yarn or the synthetic yarn constituting the wrong weave may contain a mass-dyed component selected from the group consisting of carbon black, pigments and dyes.

Preferably, the monofilament fineness of the high shrink yarn or the synthetic yarn constituting the wrong weave is 1-5 denier.

In addition, an ultra-thin thread, a high shrink thread and a synthetic thread may consist mainly of polyester.

Another embodiment of the invention is a knitted fabric, which is a circular knitted fabric, whose front weave and / or purl weave is made of ultrafine thread, including the component dyed in bulk, or of a blended thread of ultrafine thread and highly shrinkable thread.

Preferably, the shrink thread includes a mass-dyed component.

Even more preferably, the ultra-thin thread and high-shrink thread consist mainly of polyester.

Most preferably, the degree of shrinkage in the boiling water of the shrink thread is 15% or more.

Another aspect of the invention is a method for producing a knitted fabric having high washing resistance and light fastness, in which a sea-island conjugate fiber consisting of a fiber-forming component containing 0.1-15 wt.% Of a dyed component selected from the group consisting of of carbon black, pigments and dyes, and a dissolution component, which is a readily soluble polymer, are used as the face yarn and / or the wrong yarn.

Preferably, the knitted fabric is further dyed with dyes having a concentration of 3.0% of the total fiber weight with respect to the powdery dyes.

Even more preferably, the weight number of the monofilament of the fiber-forming component in a sea-island conjugate is 0.001-0.3 denier.

It is possible to use conjugate fiber of the sea-island type as the front yarn, and high-shrink thread or synthetic thread as the wrong yarn.

Preferably, the sea-island type conjugate fiber is used as the front yarn, the high shrink thread or the synthetic thread is used as the wrong yarn, and the spandex elastic thread is used as the intermediate yarn.

Even more preferably, the fineness of the yarn monofilament is 1-5 denier.

You can use the front yarn and wrong yarn, consisting mainly of complex polyester.

The present invention is described in more detail below.

The knitted fabric of the present invention includes both a warp knitted fabric and a weft knitted fabric.

Firstly, the knitted fabric of the present invention has an ultra-thin thread, including a mass-dyed component selected from the group consisting of carbon black, pigments and dyes, on the face and / or inside. The above ultra-thin thread is formed by knitting a knitted fabric using a conjugate fiber of the type of bicomponent dissolution, which has a polyester comprising a mass-dyed component as a fiber-forming component and a readily soluble polymer as a dissolution component, as a face yarn and / or wrong yarn and then dissolving component dissolution in the subsequent process.

In other words, to improve processability, the knitted fabric becomes ultra-thin after knitting and teasing using conjugated fiber such as bicomponent dissolution as the face yarn and / or the wrong yarn and then dissolving the dissolution component.

As a readily soluble polymer, most preferably, a copolymerized polyester with very good alkali solubility is used. For example, as a readily soluble polymer, a blended composition is used consisting of (i) a copolymerized polyester obtained by copolymerizing an ester unit of ethylene terephthalic acid as a main component with an ester unit containing metal sulfonates, and (ii) a polyethylene glycol having a number average molecular weight of more than 8,000 molecular weight over 8. In addition, a water-soluble polyvinyl alcohol or polystyrene or the like can be used as a readily soluble polymer. However, polystyrene is unfavorable in that the solvent used in the dissolution causes environmental pollution.

In particular, according to the present invention, when spinning a sea-island conjugate fiber, the mass-dyed component is introduced into the fiber-forming component to increase the washing resistance and light fastness of the knitted fabric. As a component colored in the mass, more than one component from the group consisting of carbon black, pigments and dyes is used. If only carbon black is used, the ultra-thin filament (component island) is black. In the case where it is desired that the ultrafine yarn have other colors than black, the types of pigments or dyes should be suitably selected.

For example, dyes include organic soluble dyes (Eastwell Co., Ltd.), such as Papilion Yellow S-4G, Papilion Red SG, Papilion Blue S-GL, etc., and pigments include BASF products Corporation such as Heliogen Blue D7030, Paliogen Red L3885, Paliotol Yellow D1819 Heliogen, etc. By properly mixing said pigments and dyes of colors red-green-blue, the desired color can be obtained. In addition, if the carbon black content in the component island is controlled to less than 5 wt.%, A gray knitted fabric may be obtained. Bulk dyed components include black pigments and black dyes.

The content of the component colored in the mass is 0.1-15 wt.% With respect to the mass of the fiber-forming component (ultrafine filament). If the content of the colored component in the mass is less than 0.1 wt.%, The effect of improving the washing resistance and light fastness is small, or if it is more than 15 wt.%, The spinnability is reduced.

The knit fabric of the present invention includes a warp knit fabric that consists of a front weave made of an ultra-thin thread including a mass-dyed component and a purl weave made from a high-shrink thread or a synthetic thread, or which may have an intermediate weave made of spandex elastic thread , between the facial weave and the wrong weave.

Next, the warp knitted fabric of the present invention will be described in detail.

Preferably, the monofilament fineness of the facial weave (ultrafine yarn) is 0.001-0.3 denier. If the monofilament fineness is more than 0.3 denier, the bristling ability and longevity of the brushed fiber are improved, but it can become hard to the touch, and the print result may be reduced. If it is less than 0.001 denier, the softness can be increased, but the brushed fiber easily falls out or tangles due to friction, thus making the appearance poor.

Preferably, the high-shrink yarn and the synthetic yarn (hereinafter “purl yarn”) include polyester filaments. To increase the resistance to washing and light fastness, the dyed component in the mass can be 0.1-15 wt.% Purl yarn.

Preferably the fineness of the monofilament of the wrong yarn is 1-5 denier. If the monofilament fineness is less than 1 denier, it may be difficult to impart proper repelling ability to the warp knitted fabric (finished fabric). If the weight of the monofilament is more than 5 denier, processability, such as processability by warping and knitting, may be worse or the repellent ability of the warp knitted fabric becomes too large, making it difficult to display the softness of the front surface.

Preferably, the high shrink yarn comprises a copolymerized polyester. As the main component, bisphenol-A, polyethylene glycol, isophthalic acid, and the like can be used. However, the copolymer component of the present invention is not limited to this.

Meanwhile, in the case where the spandex elastic yarn (hereinafter “intermediate yarn”) is used as the intermediate weave, the density of the facial weave can be greatly increased by the shrinkage of the intermediate weave. Since the spandex elastic yarn, which is an intermediate yarn, has a good elasticity characteristic, it increases the fiber density of the front weave of the finished fabric, thereby improving the softness of the warp knitted fabric and imparting good elasticity and repelling ability to the warp knitted fabric. The total weight number of the spandex is preferably 30-90 denier.

In the knitting operation, the content of the facial yarn is preferably 40-87 wt.% With respect to the total weight of the final warp knitted fabric. If it is less than 40 wt.%, There is a risk that the softness of the warp knitted fabric will be poor. If it is more than 87 wt.%, The content of the intermediate yarn and the content of the wrong yarn becomes relatively low, as a result of which drape and physico-mechanical properties become worse.

Meanwhile, the intermediate yarn content and the wrong yarn content are preferably 0-20 wt.% And 13-60 wt.%, Respectively, with respect to the total weight of the final warp knitted fabric. If it is above the above range, the softness of the warp knitted fabric may be reduced. If it is below the above range, shape stability and drape can be reduced.

The final warp knitted fabric is obtained by napping, preheating, weight reduction (removal of the dissolution component), mechanical softening, and finally heating of the fabric thus knitted.

The present invention may not include a dyeing process because the ultrafine yarn contains a mass-dyed component. To adjust the color of the warp knitted fabric, however, an additional dyeing process can be carried out. In the case of an additional dyeing process, the concentration of dyes used is preferably less than 3% with respect to the total fiber weight. The density of the final warp knitted fabric is preferably 40-60 loop / inch.

The warp knitted fabric of the present invention has a very high washing resistance and light fastness because the front yarn or both the front yarn and the wrong yarn contain a black mass-dyed component. In particular, to obtain the desired color, the dyeing process is not required or (if at all required) only the additional dyeing process is required, using 3.0% with respect to the total fiber mass of dyes (based on powder dyes). Of course, even if an additional dyeing process is required that uses more than 3.0% with respect to the total fiber mass, this will be achieved only with an increase in the content of the component colored in the mass in the island component.

Additional dyeing is carried out mainly to change the color of the warp knitted fabric to a different color using this dyed fiber in the mass as the basis. The reason that the amount of dyes used in the additional dyeing is limited to 3.0% with respect to the total fiber weight of the powder dyes is that if the amount of dyes is greater than the above value, the washing resistance and light fastness are sharply reduced.

Washing resistance and light fastness are in inverse proportion to the amount of dyes used. In the case of an ultra-thin filament, the specific surface area is much higher than that of a conventional filament, so that its resistance is inevitably low. However, in the case of liquid dyes, whose concentration is 50% or so, which is lower than that of powder dyes, up to 6.0% with respect to the total fiber weight can be used.

Therefore, the resistance interval of the dyed fiber mass achieved by the present invention is more than a value of 2-3 for washing resistance and more than a value of 5.0 for light fastness.

In addition, the warp knitted fabric of the present invention has very good processability, such as warp and knitting, because the face yarn is a bicomponent dissolution yarn. At the same time, in the subsequent process, since the dissolution component dissolves to produce ultrafine facial yarn, a warp knitted fabric may show excellent printing results and softness.

Meanwhile, the warp knit fabric of the present invention can solve the problem when it becomes too soft to the touch when producing a warp knit fabric using a conventional bicomponent dissolution yarn because the wrong denier yarn is the wrong yarn. In addition, it can show superior drape. In particular, in the case where the intermediate weave is formed from spandex elastic yarn with good elastic processability and the wrong weave is formed from highly shrinkable yarns, the density of the ultrafine yarn of the front weave becomes much higher and therefore the elongation and softness of the warp knitted fabric are restored in the direction of the looper and the loop direction become more excellent.

The knitted fabric of the present invention also includes a weft knitted fabric, which consists of an ultrafine yarn comprising a mass-dyed component, or a blended yarn of ultrafine yarn and highly shrinkable yarn, on the face and / or the wrong side.

Below, the weft knitted fabric of the present invention will be described in detail.

The shrinkage in boiling water of the high shrink yarn used in the manufacture of the airy textured yarn is preferably more than 15% to improve the softness of the final product. As a separate example of a highly shrinkable thread, polyester filaments and the like can be used.

In the case where an ultra-thin yarn or a blended yarn is used for any of the face and the wrong side, it is preferable to use a thick yarn of polyester filaments as yarn of the other side. To improve washing resistance and light fastness, the dyed component in the mass can be contained in 0.1-15 wt.% A thick thread.

Preferably, the weight number of the thick filament monofilament is 0.5-5 denier. If the weight number of the monofilament is less than 0.5 denier, it can be difficult to impart proper repulsive ability to a knitted circular knit fabric.

If the weight of the monofilament is more than 5 denier, processability, such as processability by warping and knitting, may be worse or the repulsive ability of the weft knitted fabric becomes too large, making it difficult to display the softness of the front surface.

A method for producing a weft knitted fabric according to the present invention will be described more specifically below. Firstly, sea-island-type conjugate fiber is used as the front yarn and the wrong yarn, consisting of a fiber-forming component that contains 0.1-15 wt.% Of a mass-dyed component selected from the group consisting of carbon black, pigments and dyes, and the dissolution component, which is a readily soluble polymer, or use a blended yarn of sea-island type conjugate fiber and a highly shrinkable yarn to form a weft knit fabric on a circular knitting machine.

Meanwhile, it is possible to knit a knitted circular knit fabric using a sea-island-type conjugate fiber or a sea-island-type conjugate filament and high-shrink yarn as any one of the front and back yarns and using a thick polyester yarn with a monofilament filament of 0.5 -5 denier as yarn on the other side.

Then, when the mass is reduced by leaching the obtained circular knitted knitted fabric, the dissolution component (sea component) in the sea-island type conjugate is dissolved, resulting in an ultrafine filament.

The circular knitted knit fabric of the present invention contains a mass-dyed component in an ultrafine filament, so that the dyeing process can be omitted. However, additional dyeing may be carried out to correct the color of the knitted circular knit fabric. In addition, additional dyeing may be performed to correct the color of the ultrathin fabric. In the additional dyeing method, a sufficiently deep color can be obtained even at a dye concentration of less than 5%, and thus the amount of dyes used can be reduced.

The ultrafine filament or blended yarn of ultrafine yarn and thick yarn that make up the circular knit fabric of the present invention contains a black mass-dyed component, and thus their washing resistance and light fastness are very high. More specifically, the washing resistance is higher than a value of 2-3, and the light fastness is higher than a value of 5. In addition, the knitted fabric of the present invention has very good processability, since it is knitted in a state of sea-island conjugate, and at the same time, it can have good softness, since the thread in the knitted fabric becomes ultrafine when the dissolution component dissolves in the subsequent process.

The present invention is explained below more specifically when comparing between examples of the present invention and comparative examples. However, the present invention is not limited to such examples.

Getting warp knitted fabric

Example 1

A warp knitted fabric with a density of 23 loops / cm is obtained, in which conjugated fiber of the dissolution type (dyed in bulk) is used as a face yarn, spandex elastic thread 40 denier / 5 filaments are used as intermediate yarn and polyester multifilament (dyed in bulk ) 50 denier / 24 filament containing 3 wt.% Carbon black, is used as the wrong yarn, and the conjugated fiber of the dissolution type consists of polyethylene terephthalate containing 4 wt.% Carbon black, As a fiber-forming component and an alkali-readily soluble copolymerized polyester consisting of 5 mol.% polyethylene glycol, 5 mol.% dimethyl-5-sulfoisophthalate, 5 mol.% isophthalic acid and 85 mol.% polyethylene terephthalate, as a dissolution component, and has denier fiber-forming component 0.07 after dissolution of the dissolution component. In this case, in the warp knitted fabric, the mass ratio (front yarn): (intermediate yarn): (wrong yarn) is set at 55 wt.%: 10 wt.%: 35 wt.%. The resulting warp knitted fabric is teased for shrinkage by 50%, then pre-stabilized and reduced weight for 40 min in a NaOH solution having a concentration of 1% relative to the total weight of the solution and a temperature of 98 ° C, is mechanically softened and finally stabilized at 180 ° C, thus obtaining a finished warp knitted fabric. In this case, dyeing is not carried out. The results of evaluating the quality and processability of the finished warp knitted fabric are shown in table 1.

Example 2

A warp knit fabric with a density of 23 loops / cm is obtained, in which a conjugated fiber of the dissolution type (dyed yarn) is used as a face yarn, spandex elastic yarn of 40 denier / 5 filaments is used as an intermediate yarn and a polyester multifilament (non-dyed yarn ) 50 denier / 24 filament is used as the wrong yarn, and the conjugated fiber of the dissolution type consists of polyethylene terephthalate containing 3 wt.% Carbon black as a fiber-forming com This is an alkaline copolymerized complex polyester consisting of 5 mol.% polyethylene glycol, 5 mol.% dimethyl-5-sulfoisophthalate, 5 mol.% isophthalic acid and 85 mol.% polyethylene terephthalate, as a dissolution component, and has a denier of fiber-forming component 0.07 after dissolution of the dissolution component. In this case, in the warp knitted fabric, the mass ratio (front yarn) :( intermediate yarn) :( wrong yarn) is set at 55 wt.%: 10 wt.%: 35 wt.%. The resulting warp knitted fabric is teased for shrinkage by 50%, then pre-stabilized and reduced weight for 40 minutes in a NaOH solution having a concentration of 2% with respect to the total weight of the solution and a temperature of 98 ° C, is mechanically softened and finally stabilized at 180 ° C, thus obtaining the final warp knitted fabric. The above warp knitted fabric is dyed with black disperse dyes (concentration of 2% relative to the total fiber weight) using a typical quick-dyeing machine for 45 minutes at 120 ° C (pH 4.5), washed and then finally stabilized at 160 ° C. The results of evaluating the quality and processability of the finished warp knitted fabric are shown in table 1.

Example 3

A warp knitted fabric with a density of 23 loops / cm is obtained, in which a conjugated fiber of the dissolution type (dyed yarn) is used as a face yarn, spandex elastic yarn of 40 denier / 5 filaments is used as an intermediate yarn, and a polyester multifilament (unpainted in bulk thread) 50 denier / 24 filament is used as the wrong yarn, wherein the dissolution type conjugate fiber consists of polyethylene terephthalate containing 5 wt.% Papilion yellow S-4G (manufactured by Eastwell Co., Ltd.) It is a dye soluble in organic substances as a fiber-forming component and an alkali-readily soluble copolymerized polyester consisting of 5 mol.% polyethylene glycol, 5 mol.% dimethyl-5-sulfoisophthalate, 5 mol.% isophthalic acid and 85 mol.% polyethylene terephthalate, in as a dissolution component, and has a denier of the fiber-forming component of 0.07 after dissolution of the dissolution component. In this case, in the warp knitted fabric, the mass ratio (front yarn): (intermediate yarn): (wrong yarn) is set at 55 wt.%: 10 wt.%: 35 wt.%. The resulting warp knitted fabric is teased for shrinkage by 50%, then pre-stabilized and reduced weight for 40 min in a NaOH solution having a concentration of 1% relative to the total weight of the solution and a temperature of 98 ° C, is mechanically softened and finally stabilized at 180 ° C, thus obtaining a finished warp knitted fabric. The results of evaluating the quality and processability of the finished warp knitted fabric are shown in table 1.

Example 4

A warp knitted fabric with a density of 23 loops / cm is obtained, in which a conjugated fiber of the dissolution type (dyed in bulk) is used as a front yarn, spandex elastic yarn of 40 denier / 5 filaments is used as an intermediate yarn, and a polyester highly shrinkable yarn (unpainted weight of thread) 50 denier / 24 filament is used as the wrong yarn, and the conjugate of the dissolution type consists of polyethylene terephthalate containing 4 wt.% Heliogen blue D7030 (manufactured by BASF), which is a pigment, as a fiber-forming component and an alkali-readily soluble copolymerized polyester consisting of 5 mol.% polyethylene glycol, 5 mol.% dimethyl-5-sulfoisophthalate, 5 mol.% isophthalic acid and 85 mol.% polyethylene terephthalate, as a dissolution component , and has a denier of the fiber-forming component 0.07 after dissolution of the dissolution component. In this case, in the warp knitted fabric, the mass ratio (front yarn) :( intermediate yarn) :( wrong yarn) is set at 55 wt.%: 10 wt.%: 35 wt.%. The resulting warp knitted fabric is teased for shrinkage by 50%, then pre-stabilized and reduced weight for 40 min in a NaOH solution having a concentration of 1% relative to the total weight of the solution and a temperature of 98 ° C, is mechanically softened and finally stabilized at 180 ° C, thus obtaining a finished warp knitted fabric. The results of the assessment of the quality characteristics of the finished warp knitted fabric are shown in table 1.

Example 5

A warp knitted fabric with a density of 23 loops / cm is obtained in which a conjugated fiber of the dissolution type (dyed in bulk) is used as a face yarn and a polyester multifilament (dyed in bulk) is 50 denier / 24 filament containing 3 wt.% Carbon black , used as the wrong yarn, moreover, the conjugated fiber of the dissolution type consists of polyethylene terephthalate containing 4 wt.% carbon black, as a fiber-forming component and readily soluble in alkali copolymerized with of polyester, consisting of 5 mol.% polyethylene glycol, 5 mol.% dimethyl-5-sulfoisophthalate, 5 mol.% isophthalic acid and 85 mol.% polyethylene terephthalate, as a dissolution component, and has a denier fiber component 0.07 after dissolving the component dissolution. In this case, in the warp knitted fabric, the mass ratio (front yarn): (purl) is set at 45 wt.%: 55 wt.%. The resulting warp knitted fabric is teased for shrinkage by 50%, then pre-stabilized and reduced weight for 40 min in a NaOH solution having a concentration of 1% relative to the total weight of the solution and a temperature of 98 ° C, is mechanically softened and finally stabilized at 180 ° C, thus obtaining a finished warp knitted fabric. In this case, the dyeing process is not carried out. The results of the assessment of the quality characteristics of the finished warp knitted fabric are shown in table 1.

Example 6

A warp knitted fabric with a density of 23 loops / cm is obtained, in which a conjugated fiber of the dissolution type (dyed in bulk) is used as a face yarn, and a polyester multifilament (unstained in bulk) 50 denier / 24 filament is used as a wrong yarn, wherein a conjugated fiber of the dissolution type consists of polyethylene terephthalate containing 3 wt.% carbon black as a fiber-forming component and readily soluble in alkali copolymerized polyester consisting of 5 mol.% Polyethylene glycol, 5 mol.% Dimethyl-5-sulfoisophthalate, 5 mol.% Isophthalic acid and 85 mol.% Polyethylene terephthalate, as a dissolution component, and has a denier fiber-forming component of 0.07 after dissolution of the dissolution component. In this case, in the warp knitted fabric, the mass ratio (front yarn): (purl) is set at 45 wt.%: 55 wt.% The resulting warp knitted fabric is teased for shrinkage by 50%, then it is pre-stabilized and reduced weight for 40 minutes in a NaOH solution having a concentration of 1% with respect to the total weight of the solution and a temperature of 98 ° C, it is mechanically softened and finally stabilized at 180 ° C, thereby obtaining the final warp knitted fabric. The above warp knitted fabric is dyed with black disperse dyes (concentration of 2% relative to the total fiber weight) using a typical quick-dyeing machine for 45 minutes at 120 ° C (pH 4.5), washed and then finally stabilized at 160 ° C. The results of the assessment of the quality characteristics of the finished warp knitted fabric are shown in table 1.

Example 7

A warp knitted fabric with a density of 23 loops / cm is obtained in which the conjugated fiber of the dissolution type (dyed in bulk) is used as a face yarn and the polyester multifilament (unstained in bulk) 50 denier / 24 filament is used as a wrong yarn, whereby dissolution fiber consists of polyethylene terephthalate containing 5 wt.% Papilion yellow S-4G (manufactured by Eastwell Co., Ltd.), which is an organic soluble dye, as a fiber-forming component and readily soluble in alkali copolymerized complex polyester consisting of 5 mol.% polyethylene glycol, 5 mol.% dimethyl-5-sulfoisophthalate, 5 mol.% isophthalic acid and 85 mol.% polyethylene terephthalate, as a component of dissolution, and has denier fiber-forming component 0.07 after dissolution of the dissolution component. In this case, in the warp knitted fabric, the mass ratio (front yarn): (purl) is set at 45 wt.%: 55 wt.%. The resulting warp knitted fabric is teased for shrinkage by 50%, then pre-stabilized and reduced weight for 40 minutes in a NaOH solution having a concentration of 1% with respect to the total weight of the solution and a temperature of 98 ° C, is mechanically softened and finally stabilized at 180 ° C , thus obtaining a finished warp knitted fabric. The results of the assessment of the quality characteristics of the finished warp knitted fabric are shown in table 1.

Example 8

A warp knitted fabric with a density of 23 loops / cm is obtained in which the conjugated fiber of the dissolution type (dyed in bulk) is used as a face yarn and the polyester multifilament (unstained in bulk) 50 denier / 24 filament is used as a wrong yarn, whereby fiber of the dissolution type consists of polyethylene terephthalate containing 4 wt.% Heliogen blue D7030 (manufactured by BASF), which is a pigment, as a fiber-forming component and easily soluble in alkali nozzles a merized polyester consisting of 5 mol.% polyethylene glycol, 5 mol.% dimethyl-5-sulfoisophthalate, 5 mol.% isophthalic acid and 85 mol.% polyethylene terephthalate, as a dissolution component, and has a denier of the fiber-forming component of 0.07 after dissolution component of dissolution. In this case, in the warp knitted fabric, the mass ratio (front yarn): (purl) is set at 45 wt.%: 55 wt.%. The resulting warp knitted fabric is teased for shrinkage by 50%, then pre-stabilized and reduced weight for 40 min in a NaOH solution having a concentration of 1% relative to the total weight of the solution and a temperature of 98 ° C, is mechanically softened and finally stabilized at 180 ° C, thus obtaining a finished warp knitted fabric. The results of the assessment of the quality characteristics of the finished warp knitted fabric are presented in table 1.

Comparative Example 1

A warp knitted fabric with a density of 23 loops / cm is obtained, in which a conjugated fiber of the dissolution type (unpainted yarn) is used as a face yarn and a polyester multifilament (unpainted yarn) 50 denier / 24 filament is used as a wrong yarn fiber of the dissolution type consists of polyethylene terephthalate as a fiber-forming component and an alkali-readily soluble copolymerized polyester consisting of 5 mol.% polyethylene glycol, 5 mol.% di methyl 5-sulfoisophthalate, 5 mol.% isophthalic acid and 85 mol.% polyethylene terephthalate, as a dissolution component, and has a denier of the fiber-forming component of 0.07 after dissolution of the dissolution component. In this case, in the warp knitted fabric, the mass ratio (front yarn): (purl) is set at 45 wt.%: 55 wt.%. The resulting warp knitted fabric is teased for shrinkage by 50%, then pre-stabilized and reduced weight for 40 min in a NaOH solution having a concentration of 1% relative to the total weight of the solution and a temperature of 98 ° C, is mechanically softened and finally stabilized at 180 ° C, thus obtaining the final warp knitted fabric. The above warp knitted fabric is dyed with black disperse dyes (concentration 12.5% relative to the total fiber weight) using a typical quick-dyeing machine for 45 minutes at 120 ° C (pH 4.5). The results of the assessment of the quality characteristics of the finished warp knitted fabric are shown in table 1.

Reference Example 2

A warp knitted fabric with a density of 23 loops / cm is obtained in which a conjugated fiber of the dissolution type (unpainted yarn) is used as a face yarn, spandex elastic yarn of 40 denier / 5 filaments is used as an intermediate yarn, and a polyester multifilament (unpainted yarn thread) 50 denier / 24 filament is used as the wrong yarn, the conjugated fiber of the dissolution type consisting of polyethylene terephthalate as a fiber-forming component and readily soluble in alkali eyes copolymerized complex polyester consisting of 5 mol.% polyethylene glycol, 5 mol.% dimethyl-5-sulfoisophthalate, 5 mol.% isophthalic acid and 85 mol.% polyethylene terephthalate, as a component of dissolution, and has denier fiber-forming component of 0.07 after dissolving the dissolving component. In this case, in the warp knitted fabric, the mass ratio (front yarn) :( intermediate yarn) :( wrong yarn) is set at 55 wt.%: 10 wt.%: 35 wt.%. The resulting warp knitted fabric is teased for shrinkage by 50%, then pre-stabilized and reduced weight for 40 min in a NaOH solution having a concentration of 1% relative to the total weight of the solution and a temperature of 98 ° C, is mechanically softened and finally stabilized at 180 ° C, thus obtaining the final warp knitted fabric. The above warp knitted fabric is dyed with black disperse dyes (concentration 12.5% relative to the total fiber weight) using a typical quick-dyeing machine for 45 minutes at 120 ° C (pH 4.5). The results of the assessment of the quality characteristics of the finished warp knitted fabric are shown in table 1.

Getting weft knitted fabric

Example 9

The circular knitted knit fabric is knitted on an 18-gauge 4-speed Interlock circular knitting machine, on which a blended yarn obtained from a conjugated fiber of the dissolution type (dyed yarn) is 150 denier / 48 filaments and a polyester high-shrink yarn 30 denier / 12 filaments having the degree of shrinkage in boiling water is 18%, served as facial yarn, and the polyester filament (dyed in bulk) 50 denier / 24 filament containing 3 wt.% carbon black is served as a wrong yarn, and the conjugated fiber of the dissolution type consists of polyethylene terephthalate containing 3 wt.% carbon black, as a fiber-forming component and readily soluble in alkali copolymerized polyester consisting of 5 mol.% polyethylene glycol, 5 mol.% dimethyl-5-sulfoisophthalate, 5 mol.% isophthalic acid and 85 mol% of polyethylene terephthalate, as a dissolution component, and has a denier of the fiber-forming component of 0.06 after dissolution of the dissolution component. A knitted circular knitted knit fabric is treated in a NaOH solution having a concentration of 1% with respect to the total weight of the solution and a temperature of 98 ° C, and is teased, thereby obtaining a finished circular knitted knitted fabric.

In this case, the dyeing process is not carried out. The results of the assessment of the quality characteristics of the finished circular knitted fabric are shown in table 2.

Example 10

The finished circular knitted knitted fabric obtained in the same manner and under the conditions as in Example 9 was stained with black disperse dyes (concentration 1.0% relative to the total fiber weight) using a typical quick-dyeing machine for 45 minutes at 120 ° C (pH 4,5), washed and then finally stabilized at 160 ° C. The results of the assessment of the quality and processability of the thus dyed finished knitted circular knit fabric are shown in table 2.

Example 11

The circular knitted knit fabric is knitted on an 18-gauge 4-speed Interlock circular knitting machine, on which a blended yarn obtained from a conjugated fiber of the dissolution type (dyed yarn) is 150 denier / 48 filaments and a polyester high-shrink yarn 30 denier / 12 filaments having the degree of shrinkage in boiling water is 18%, served as a facial yarn, and polyester filament (unpainted yarn in bulk) 50 denier / 24 filaments served as a wrong yarn, and the conjugate of the dissolution type consists of polyethylene terephthal one containing 5 wt.% Papilion yellow S-4G (manufactured by Eastwell Co., Ltd.), which is an organic soluble dye, as a fiber-forming component and an easily alkali-soluble copolymerized polyester consisting of 5 mol.% polyethylene glycol , 5 mol.% Dimethyl-5-sulfoisophthalate, 5 mol.% Isophthalic acid and 85 mol.% Polyethylene terephthalate, as a dissolution component, and has a denier of the fiber-forming component of 0.06 after dissolution of the dissolution component. A knitted circular knitted knit fabric is treated in a NaOH solution having a concentration of 1% with respect to the total weight of the solution and a temperature of 98 ° C, and is teased, thereby obtaining a finished circular knitted knitted fabric. The results of the assessment of the quality characteristics of the finished circular knitted fabric are shown in table 2.

Example 12

A circular knitted knit fabric is knitted on an 18-gauge 4-speed Interlock circular knitting machine, at which conjugated fiber of the dissolution type (dyed in bulk) is 150 denier / 48 filaments as facial yarn, and polyester filament (unpainted in bulk) is 50 denier / 24 filaments are served as the wrong yarn, the conjugate of the dissolution type consisting of polyethylene terephthalate containing 4 wt.% Heliogen blue D7030 (manufactured by BASF), which is a pigment, as a fiber-forming component and alkali-soluble copolymerized polyester consisting of 5 mol.% polyethylene glycol, 5 mol.% dimethyl-5-sulfoisophthalate, 5 mol.% isophthalic acid and 85 mol.% polyethylene terephthalate, as a dissolution component, and has denier fiber-forming component 0, 06 after dissolution of the dissolution component. A knitted circular knitted knit fabric is treated in a NaOH solution having a concentration of 1% with respect to the total weight of the solution and a temperature of 98 ° C, and is teased, thereby obtaining a finished circular knitted knitted fabric. The results of the assessment of the quality characteristics of the finished circular knitted fabric are shown in table 2.

Reference Example 3

A knitted circular knit fabric is knitted on an 18-gauge 4-speed Interlock circular knitting machine, on which an airy textured yarn obtained from a conjugated fiber of the dissolution type (unpainted yarn) is 150 denier / 48 filaments and a polyester highly shrinkable yarn 30 denier / 12 filaments, having a degree of shrinkage in boiling water of 18%, is served as a front yarn, and the polyester filament (unpainted filament) 50 denier / 24 filament is served as a wrong yarn, and the conjugated fiber of the dissolution type consists of polyethylene terephthalate as a fiber-forming component and an alkali readily soluble copolymerized polyester consisting of 5 mol.% polyethylene glycol, 5 mol.% dimethyl-5-sulfoisophthalate, 5 mol.% isophthalic acid and 85 mol.% polyethylene terephthalate, as a dissolution component, and has a denier of the fiber-forming component 0.06 after dissolution of the dissolution component. The knitted circular knitted knit fabric is treated in a NaOH solution having a concentration of 1% with respect to the total weight of the solution and a temperature of 98 ° C, is teased and then dyed with black disperse dyes (concentration of 12.5% with respect to the total weight of the fiber) using a typical quick-dyeing machine for 45 min at 120 ° C (pH 4.5), thus obtaining a finished circular knitted knitted fabric. The results of the assessment of the quality characteristics of the finished circular knitted fabric are shown in table 2.

table 2
Quality characteristics of a knitted circular knit fabric Class Quality characteristics of a knitted circular knit fabric Wash resistance Light fastness Black before dyeing Black after dyeing Example 9 Value 5 Value 7 14.3 - Example 10 Value 3-4 Value 6 14.3 13,4 Example 11 Value 4-5 Value 6 - - Example 12 Value 4-5 Value 6 - - Reference Example 3 Value 1 Value 3 - 14.3

In the present invention, the quality characteristics of knitted fabrics are determined by the following methods.

Wash resistance

The resistance to washing is determined by the method of KS K 0430 A1.

Light fastness

Light fastness is determined by the method of KS K 0700.

Surface softness

The softness of the surface is determined by organoleptic test on 10 pieces of canvas. When 8 or more samples are rated soft, the canvas gets a good rating (Ö), when 5-7 samples are rated as above, the canvas gets an average rating (Δ) and when 8 or more samples are rated that the canvas lacks softness, the canvas gets poor grade (x).

Repulsive ability

Repulsive ability is determined by organoleptic test on 10 pieces of canvas. When 8 or more samples have a repellent ability, the canvas gets a good grade (Ö), when 5-7 samples are rated as above, the canvas gets an average grade (Δ), and when 8 or more samples are rated that the canvas lacks repellent , the canvas receives a poor rating (x).

Warp processing

Warpability is evaluated by monitoring the number of stops / hour of the warping machine due to a defect in yarn at a warp speed of 500 m / min. If the number of stops / hour is zero, this is excellent (Ö). If the number of stops / hour is one or two, this is normal (Δ). If the number of stops / hour is more than 3 times, this is bad (x). The number of stops / hour of the warp machine is calculated by dividing the total number of stops of the warp machine when warping 9 kg of yarn by the total warping time.

Knit processability

Knitting processability is evaluated by controlling the number of stops / hour of the knitting machine due to a defect in yarn at a knitting speed of 1000 m / min. If the number of stops / hour is zero, this is excellent (Ö). If the number of stops / hour is one or two, this is normal (Δ). If the number of stops / hour is more than 3 times, this is bad (x). The number of stops / hour of the knitting machine is calculated by dividing the total number of stops of the knitting machine per day by 24 hours.

Blackness (L value)

Blackness was determined using the Spectra Flash of Data Color Company.

Shrinkage in boiling water (%)

Get a fiber sample and measure the initial length (l ₀ ). The fiber sample is then treated in boiling water at 100 ° C for 15 minutes. Then the length of the sample (l ₁ ) is measured under a load of 0.15 g / d. Shrinkage in boiling water is calculated according to the following formula:

As described above, the knitted fabric according to the present invention may not be dyed and has high washing resistance and light fastness, since the ultra-thin yarn constituting the knitted fabric contains a mass-dyed component. In addition, the knit fabric is obtained by warping and knitting using sea-island-type conjugate fiber, processability is good, and softness to the touch and repulsive ability are excellent because the knit fabric becomes ultra-thin after the sea component is dissolved. As a result, the knit fabric of the present invention is used for artificial leather or dress fabric materials.

Claims (20)

1. A knitted fabric having high washing resistance and light fastness, comprising an ultra-thin thread, including a mass-dyed component selected from the group consisting of carbon black, pigments and dyes, on the face and / or inside, in which the knitted fabric has resistance to wash more than 2-3 and light fastness more than 5. 2. The knitted fabric according to claim 1, in which the content of the dyed in the mass of the component in the ultrafine thread is 0.1-15 wt.%. 3. The knitted fabric according to claim 1, in which the fineness of the monofilament of an ultrafine thread is 0.001-0.3 denier. 4. The knitted fabric according to claim 1, in which the mass-dyed component includes black pigments or black dyes. 5. The knitted fabric according to claim 1, wherein the knitted fabric is a warp knitted fabric consisting of a facial weave made of ultra-thin yarn, including a component dyed in bulk, and a purl weave made from high-shrink yarn or synthetic yarn. 6. The knitted fabric according to claim 1, wherein the knitted fabric is a warp knit fabric consisting of a front weave made of ultra-thin yarn, including a component dyed in bulk, a weave made from high-shrink yarn or synthetic yarn, and an intermediate weave made from spandex elastic thread. 7. A knitted fabric according to claim 5 or 6, in which the highly shrinkable yarn or synthetic yarn constituting the wrong weave contains a mass-dyed component selected from the group consisting of carbon black, pigments and dyes. 8. A knitted fabric according to claim 5 or 6, in which the monofilament fineness of a highly shrinkable yarn or synthetic yarn constituting the wrong weave is 1-5 denier. 9. A knitted fabric according to claim 5 or 6, in which the ultra-thin thread, high-shrink thread and synthetic thread consist mainly of polyester. 10. Knitted fabric according to claim 1, in which the knitted fabric is a circular knitted fabric, whose front weave and / or purl weave is made of ultrafine yarn, including a component dyed in bulk, or of a blended yarn of ultrafine yarn and highly shrinkable yarn. 11. The knitted fabric of claim 10, in which the shrink thread includes a dyed component in the mass. 12. The knitted fabric of claim 10, in which the ultra-thin thread and high-shrink thread consist mainly of polyester. 13. A knitted fabric according to claim 5, 6 or 10, wherein the degree of shrinkage in the boiling water of the highly shrinkable thread is 15% or more. 14. A method of obtaining a knitted fabric having high washing resistance and light fastness, in which the sea-type conjugated fiber is an island consisting of a fiber-forming component containing 0.1-15% by weight of a dyed component selected from the group consisting of carbon carbon black, pigments and dyes, and a dissolution component, which is a readily soluble polymer, are used as the face yarn and / or the wrong yarn. 15. The method according to 14, in which the knitted fabric is additionally dyed with dyes having a concentration of 3.0% of the total fiber weight with respect to the powdery dyes. 16. The method according to 14, in which the weight number of the monofilament fiber-forming component in the conjugate fiber type sea-island is 0.001-0.3 denier. 17. The method according to 14, in which the conjugated fiber of the sea-island type is used as the front yarn, and the high-shrink thread or synthetic thread is used as the wrong yarn. 18. The method of claim 14, wherein the sea-island type conjugate fiber is used as the front yarn, the high shrink thread or the synthetic thread is used as the wrong yarn, and the spandex elastic thread is used as the intermediate yarn. 19. The method according to 17 or 18, in which the fineness of the monofilament of the wrong yarn is 1-5 denier. 20. The method according to 17 or 18, in which use the front yarn and the wrong yarn, consisting mainly of complex polyester. Priority on all points from 04/26/2001.