Towel cloth pile yarn and manufacturing method thereof, and towel cloth and manufacturing method thereof

Abstract

To provide a bulky towel cloth pile yarn, which causes less fluff down, less damage to its bulge after being washed, less moisture returning, and has comfortable wiping feeling, and also to provide a manufacturing method thereof and a manufacturing method of a towel cloth using the towel cloth pile yarn.SOLUTION: A warp pile yarn 14 is used for a towel cloth formed of a pile yarn and a warp ground yarn and a weft ground yarn. The pile yarn 14 is a core-sheath spun yarn 10 in which a core fiber is twisted in one direction and sheath fibers are disposed in parallel with a yarn axis. The core-sheath spun yarn 10 is twisted with a water-soluble fiber yarn 13. Winding direction of the water-soluble fiber yarn 13 is opposite to the twisting direction of the core fiber. One example of the pile yarn 14 is an air-jet spun yarn.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to pile yarn for towel fabric using air spun yarn, a method for producing the same, and towel fabric and a method for producing the same. [Background technology]

[0002] Traditionally, towel fabrics have been made using pile yarns, warp yarns, and weft yarns to create pile weaves. To improve water absorption, towel fabrics have a relatively high basis weight (mass per unit area) and are made of thick, high-fine yarns. Patent Documents 1 and 2 propose sizing pile yarns and warp yarns. In Patent Documents 3 and 4, the present inventors have proposed pile yarns for towel fabrics that use tying yarns (air-spun yarns). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-188783 [Patent Document 2] Japanese Patent Application Laid-Open No. 2018-057499 [Patent Document 3] Patent No. 6968464 [Patent Document 4] Patent No. 7141770 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the case of ring-spun yarn, both the inner and outer fibers are uniformly twisted, and even if the yarn is untwisted to produce a non-twisted yarn, both the inner and outer fibers become loose, resulting in weak strength and increased fuzz. Furthermore, in the case of bundle-spun yarn (air-spun yarn), the inner fibers are usually loose and the outer fibers are tightly wound, resulting in a stiff texture.

[0005] To provide a pile yarn for towel fabric which is less likely to shed fluff, is bulky, does not easily lose its volume after washing, is less likely to get wet again, and has a comfortable wiping feel, as well as a method for producing the same and a method for producing towel fabric using the same, as a result of extensive studies to make the most of the characteristics of towel fabric. [Means for solving the problem]

[0006] One embodiment of the present invention relates to a pile yarn for use in towel fabric, which is composed of pile yarn, warp yarn, and weft yarn, and the pile yarn is a sheath-core spun yarn in which core fibers are twisted in one direction and sheath fibers are arranged parallel to the yarn axis, and the sheath-core spun yarn is ply-twisted with a water-soluble fiber yarn, and the winding direction of the water-soluble fiber yarn is opposite to the twisting direction of the core fibers.

[0007] Another embodiment of the present invention relates to a method for producing pile yarn for towel fabric, in which the pile yarn is air-spun by an air spinning machine so that the core fibers are parallel to the yarn axis and the sheath fibers are twisted in one direction, and a water-soluble fiber yarn is wound around the surface of the air-spun yarn in the direction opposite to the twist direction of the core fibers, thereby untwisting the air-spun yarn so that the core fibers are twisted in one direction and the sheath fibers are parallel to the yarn axis.

[0008] Yet another embodiment of the present invention relates to a towel fabric using the above-mentioned terry yarn for towel fabric, wherein the towel fabric is a pile woven fabric, the terry yarn is a core-sheath spun yarn, the core fibers are twisted in one direction, and the sheath fibers are arranged parallel to the yarn axis.

[0009] Yet another embodiment of the present invention relates to a method for manufacturing towel fabric using the above-mentioned pile yarn for towel fabric, in which the water-soluble fiber yarn on the surface of the pile yarn is dissolved after weaving into a pile fabric. [Effects of the Invention]

[0010] The pile yarn for towel fabric of the present invention is a sheath-core spun yarn in which core fibers are twisted in one direction and sheath fibers are arranged parallel to the yarn axis, and the sheath-core spun yarn is plied with a water-soluble fiber yarn, and the winding direction of the water-soluble fiber yarn is opposite to the twist direction of the core fiber, so that the core fiber is tight and the sheath fiber is loose, giving the fabric a soft, fluffy texture, little shedding of fuzz, high volume, less loss of fluffiness after washing, less rewetting, and a comfortable wiping feel, and a method for producing the same can be provided. Furthermore, the towel fabric of the present invention is a pile woven fabric, and the pile yarn is a core-sheath spun yarn, with the core fibers twisted in one direction and the sheath fibers arranged parallel to the yarn axis. This allows the core fibers to be tight and the sheath fibers to be loose, giving the towel fabric a soft, fluffy texture, little shedding, great volume, less loss of fluff after washing, less rewetting, and a comfortable wiping feel, as well as a method for manufacturing the same. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a schematic side view of an air-spun yarn used in one embodiment of the present invention. [Figure 2] FIG. 2 is a schematic side view of pile yarn in one embodiment of the present invention. [Figure 3] FIG. 3 is a schematic explanatory diagram of a towel cloth according to one embodiment of the present invention. [Figure 4] Figure 4 shows the weave structure of the towel fabric. [Figure 5] FIG. 5 is a side photograph (magnification 30 times) of the pile portion of the towel fabric of Example 1 of the present invention before washing. [Figure 6] FIG. 6 is a side photograph (magnification: 30x) of the pile portion of the towel fabric of Comparative Example 1 before washing. [Figure 7] FIG. 7 is a side photograph (magnification 30 times) of the pile portion of the towel fabric in Example 1 of the present invention after 20 washes. [Figure 8] FIG. 8 is a side photograph (30x magnification) of the pile portion of the towel fabric of Comparative Example 1 after 20 washes. DETAILED DESCRIPTION OF THE INVENTION

[0012] The present invention focuses on the fact that pile yarns, which account for approximately 70% of the constituent yarns of a towel fabric, are important yarns that determine the pile standing property, the texture of the towel fabric, and functionality such as shedding, and through further investigation, the following findings were obtained: The towel fabric of the present invention comprises warp yarns, weft yarns, and pile yarns, and the pile yarns are anchored to the warp yarns and weft yarns, and the pile yarns are sheath-core spun yarns, with the core fibers twisted in one direction and the sheath fibers arranged parallel to the yarn axis, and a water-soluble fiber yarn is wrapped around the surface of the sheath-core spun yarn, with the water-soluble fiber yarn wrapped in the opposite direction to the twist direction of the core fibers. The following advantages were discovered as a result: (1) When the water-soluble fiber yarn is dissolved and removed in the subsequent process, the inner core fiber tightens and the outer sheath fiber loosens. Because the inner core fiber is tight, the strength does not decrease even though the yarn is untwisted. This results in a highly durable towel. (2) Pile yarn is a core-sheath spun yarn, with the core fibers twisted in one direction and the sheath fibers arranged parallel to the yarn axis. However, some of the core and sheath fibers undergo migration (a phenomenon in which individual fibers are twisted inward or outward), resulting in good integrity between the core and sheath fibers. This results in high strength and durability. Furthermore, because the yarn is either untwisted or loosely twisted overall, each constituent fiber exists in a free state, with good pileability, resulting in a pile yarn with a soft, fluffy texture. The soft, fluffy texture makes it soft against the skin and allows it to efficiently wipe away sweat and moisture (texture effect, wiping effect). (3) Because pile yarn is either untwisted or loosely twisted, the constituent fibers are more likely to absorb moisture, and at the same time, this swelling promotes air movement, improving breathability (water absorption effect, ventilation effect). (4) The intertwining of the constituent fibers reduces pilling (impact of reduced pilling), reduces changes in texture due to washing, and maintains the original soft and fluffy texture (impact of texture durability after washing).

[0013] The pile yarn is preferably air-spun yarn (also called shied spun yarn). Air-spun yarn is a uniform yarn with low fuzz count, has a strong yarn structure, is resistant to ironing, and can be used to make towel fabric without starch. In addition, the yarn speed (winding speed) is 300 to 500 m / min, which is approximately 10 to 30 times more productive than a ring spinning machine.

[0014] The pile yarn fineness, in terms of cotton count (S, single yarn), is preferably in the range of 10 to 50S (118 to 591 decitex). This range ensures a good texture for towel fabric. Preferred cotton for the pile yarn is, for example, the extra-long staple cotton or long staple cotton shown in Table 1 below.

[0015] [Table 1]

[0016] The water-soluble fiber yarn is preferably a water-soluble vinylon yarn or a polylactic acid yarn. The preferred fineness is an English cotton count of 50 to 200. The preferred twist coefficient K is greater than 0 and not more than 4.0, more preferably 0.5 to 3.8, and even more preferably 1.0 to 3.5. The twist factor (K) is calculated using the following formula (1).

number

[0017] The warp and weft yarns of the towel fabric may be any type of yarn, such as open-end spun yarn, air-spun yarn, ring-spun yarn, long-fiber composite spun yarn, or shied spun yarn. The preferred fineness is a cotton count (S, single yarn) of 10 to 50S (118 to 591 decitex) and a twist factor K of 3.5 to 4.5. The twist coefficient (K) is calculated using the above formula (Equation 1). Preferred cotton for the warp yarns and weft yarns is, for example, the long-staple cotton shown in Table 1 above.

[0018] The method for producing pile yarn for towel cloth of the present invention includes the following steps. (1) Spinning process The air spinning machine produces air spun yarns in which the core fibers are parallel to the yarn axis and the sheath fibers are twisted in one direction. (2) Winding process of water-soluble fiber yarn A water-soluble fiber yarn is plied onto the surface of the air spun yarn in the opposite direction to the twist direction of the core fiber. The coefficient K during plied twisting is preferably greater than 0 and less than 4.0. A commonly used twisting machine such as a ring twisting machine is used for plied twisting. This twists the core fiber in one direction, forming a pile yarn in which the sheath fiber is parallel to the yarn axis.

[0019] The towel fabric using the pile yarn of the present invention is a pile woven fabric, and the pile yarn is a core-sheath spun yarn, with the core fibers twisted in one direction and the sheath fibers arranged parallel to the yarn axis. An example of a pile woven fabric is, but is not limited to, a three-weft towel weave (3-pick terry motion weave).

[0020] In the method for producing a towel fabric using the pile yarn for towel fabric of the present invention, after weaving the pile fabric into a pile fabric, the water-soluble fiber yarn on the surface of the pile yarn is dissolved. The dissolution of the water-soluble fiber yarn is preferably carried out during scouring, bleaching and / or dyeing of the pile fabric.

[0021] The pile yarn is preferably 100% by mass cotton. This allows the water absorption, moisture absorption, and good texture of cotton fiber to be brought out. The pile yarn is preferably a single yarn or a two-ply yarn. The warp yarn is preferably a two-ply yarn made of 100% by mass cotton fiber. Two-ply yarn reduces pilling and allows loop pile towel fabric to be woven without starch. This warp yarn is preferably a two-ply yarn made by twisting two single yarns of ring spun yarn or tying spun yarn together. The weft yarn is preferably a single yarn made of 100% by mass cotton fiber. This weft yarn is preferably a single yarn of ring spun yarn or tying spun yarn. Furthermore, the pile yarn of the present invention can be a warp pile yarn or a weft pile yarn, and can be used for either, but it is preferable to use it as a warp pile yarn.

[0022] The mass per unit area (basis weight) of the towel fabric of the present invention is 100 to 1000 g / m 2The range is preferable. If it is in this range, it can be easily used as a towel fabric. For thin fabrics, the basis weight is 100 to 250 g / m 2 , and medium-weight fabrics have a basis weight of 250-500g / m 2 , thickness is 500~1000g / m 2 In addition, 100 g / m 2 Those that are less than 1000g / m are thin and have no bulk. 2 Anything over that is too thick and heavy, and neither is desirable.

[0023] In the method for manufacturing the towel fabric of the present invention, the pile yarns, warp yarns, and weft yarns are all preferably unsized, and the towel fabric is woven using a loom. Looms include air jet looms, water jet looms, shuttle looms, and rapier looms, but the most efficient air jet loom is preferred. Air looms can be used for weaving at a loom rotation speed of 300 to 500 rpm.

[0024] In the present invention, cotton is the most excellent in terms of texture, water absorption, moisture absorption, and ease of handling as a towel, but it is also acceptable to blend cotton with small amounts of linen, silk, rayon, polyester, nylon, cupra, acetate, or wool. Blends of rayon, cupra, and acetate provide moisture absorption, while wool provides heat retention. Blends of polyester and nylon provide quick-drying properties. The woven fabric is desized in a jet dyeing machine in the same way as cotton processing, and then scoured under standard cotton scouring conditions (a constant temperature of 95-98°C, a hold time of 50 minutes, a dilute caustic soda solution, and an alcohol ethoxylate-added bath). After scouring, the fabric is bleached under standard conditions (98°C, 50 minutes, hydrogen peroxide solution). The process of scouring and bleaching is also called bleaching. The fabric is then dehydrated and set in a tenter for finishing (off-white finish). This bleaching process also involves a hot water treatment, which dissolves and removes water-soluble fiber yarns.

[0025] When dyeing after scouring and bleaching, cotton is dyed with a reactive dye (60-80°C, 40 minutes). Also, when polyester fibers are blended, disperse dyes are used (130°C, 40 minutes). When dyeing fabrics containing cotton and polyester, in addition to plain dyeing using this two-bath process, disperse and reactive dyes can be used separately to dye different colors or chambray (shades). Printing is also possible on scoured and bleached off-white fabric. In the case of pre-dyed polyester yarn, crimping can be developed simultaneously with scouring, and the yarn can be bleached, dyed, and woven to produce pre-dyed towel fabric. In the case of pre-dyed cotton yarn, the yarn can be scoured, bleached, dyed, and woven to produce pre-dyed towel fabric. In this way, the present invention allows for the commercialization of products with excellent color and design properties through a variety of dyeing methods.

[0026] The towel fabric of the present invention is suitable for use as a fabric for bath towels (towels for after a bath), bath towels, bedding towels, face towels, towel handkerchiefs, sports towels, bathrobes, towel blankets, as well as for clothing, socks, rugs, bedding, etc.

[0027] The following description will be made with reference to the drawings. In the following drawings, the same reference numerals indicate the same parts. Figure 1 is a schematic side view of an air spun yarn (bundled spun yarn) 10 used in one embodiment of the present invention. In this air spun yarn 10, the core fibers 11 are parallel to the yarn axis, and the sheath fibers 12 are twisted in one direction. 2 is a schematic side view of pile yarn 14 in one embodiment of the present invention. In this pile yarn 14, air spun yarn 10 and water-soluble fiber yarn 13 are ply-twisted in the untwisting direction of the sheath fibers 12, the core fibers 11 are twisted in the opposite direction by the same number of twists as the water-soluble fiber yarn 13, and the sheath fibers 12 are untwisted by the same number of twists as the water-soluble fiber yarn 13. In other words, the core fibers 11 are twisted in one direction, the sheath fibers 12 are arranged parallel to the yarn axis, and the water-soluble fiber yarn 13 is wound around them, with the winding direction of the water-soluble fiber yarn 13 being opposite to the twist direction of the core fibers 11. As a result, the sheath fibers 12 are in an untwisted or loosely twisted state.

[0028] Figure 3 is a schematic explanatory diagram of a towel fabric 1 according to one embodiment of the present invention. This towel fabric 1 is composed of warp pile yarns 2a, 2b, weft yarns 3, and warp yarns 4a, 4b, and the warp pile yarns 2a, 2b form loop piles while being retained in the ground weave composed of the weft yarns 3 and warp yarns 4a, 4b. The obtained towel fabric 1 is cut to a predetermined size and edge-processed to form towels.

[0029] Figure 4 is a weave diagram of a towel fabric according to one embodiment of the present invention. This weave is a three-pick terry motion weave. The warp pile yarns cross over every three weft ground yarns. The warp ground yarns G and the warp pile yarns P are arranged alternately. The weft yarns 1 to 3 indicate the order. In Figure 4, as viewed from the warp, black and x indicate floating yarns, and white indicates sinking yarns. [Example]

[0030] The present invention will be explained in more detail below using examples, but the present invention is not limited to the following examples. <Evaluation of the texture of finished towel fabric> (1) Evaluation of soft texture The softness of the texture is expressed as the volume per gram of towel fabric, and is calculated using the following bulk height formula. The higher the value, the softer and better the texture. Thickness was measured according to JIS L-1096 (2010) 8.5 bulkiness test, and basis weight was measured by precisely weighing the weight of a 1m square. Measurements were taken at five locations and the average value was expressed. Umbrella height (cm 3 / g) = Thickness (mm) / Basis Weight (g / m 2 ) x 1000 (2) Evaluation of fluffy texture The towel fabric was compressed at a constant speed using a compression measuring device: KES-G5 (manufactured by Kato Tech Co., Ltd.), and the compression work: WC = (gf.cm 2 ) was calculated. Measurements were taken at five locations and the average value was expressed. The WC value is the energy required to compress the fabric; the higher the value, the better the towel is compressed, the more fluffier it is, and the fluffier it feels. (3) Evaluation of texture durability after washing The towel fabric was washed 20 times in a washing machine according to JIS L-0217 (1995), Method 103. After drying, the compression work: WC = (gf.cm 2 ) was measured at five locations and the average value was expressed as the average value. The smaller the difference in WC value before and after washing, the less the loss of fluffy texture due to washing, and the more durable and good the product is. (4) Evaluation of drainage performance during washing A 35cm wide piece of towel fabric was cut to a length of 80g, the weight was accurately measured to one decimal point, and the piece was soaked in water for 20 minutes. The wet towel fabric was then removed and centrifuged in the spin tub of a washing machine for 4 minutes, then accurately weighed and the residual moisture content (%) of the towel fabric was calculated using the following formula. The smaller the value, the better the drainage. Better drainage tends to result in a faster subsequent drying speed. Three measurements were taken and the average value was calculated. Residual moisture content of fabric (%) = (weight of fabric after soaking in water and dehydration (W1)) - (weight of fabric before soaking in water (W0)) / (weight of fabric before soaking in water (W0)) x 100 (5) Evaluation of pilling of towel fabric after washing The amount of shedding due to washing was measured according to JIS L0217 (1995), method 103. The shedding rate (%) was calculated using the following formula; the smaller the value, the less shedding there is and the better the result. Measurements were made at 5 points and the average value was used. Lint shedding rate (%) = (weight of lint that fell off after washing (g1)) / (weight of towel before washing (g0)) x 100 (6) Water absorption evaluation (modified Larose method) Measurements were taken five times according to the modified Larose method of JIS L 1907 (2010), and the average value was calculated. The Larose index (water absorption index) was calculated according to the following formula. Larose index (water absorption index)=2545V×1411W+79 V: Maximum water absorption rate (ml / s), W: Water absorption amount at maximum water absorption rate (ml) The higher the value, the faster and more moisture is absorbed from the skin, which is preferable. (7) Water absorption rate (dropping method) The water absorption rate of terry cloth was measured based on the Vuillet method, a drop method specified in JIS L 1907 (2010). The test outline involves dropping a single drop of water onto the terry cloth from a height of 10 cm, measuring the absorption time (seconds) until the mirror-like surface of the drop disappears three times, and calculating the average value. The shorter the time, the faster and better the water absorption. <Rewetting rate test method> The water rewet rate is described in Patent Publication No. 6991633 proposed by the present applicant, and is a test method in which water droplets are dropped onto a test specimen of fabric, the fabric is allowed to absorb the water, the water is absorbed with filter paper, and the property of the fabric not releasing the water is evaluated as the water rewet rate, which corresponds to the evaluation of the water absorbency felt by people when using fiber fabrics such as towels. The lower the water rewet rate, the greater the water absorbency of the fabric, and the better it can be evaluated. (1) Test environment and other conditions The test environment was standard conditions, with a temperature of 20±4°C and a relative humidity of 65±4%RH. The filter paper used was stored for more than 24 hours under standard conditions: temperature 20±4°C, relative humidity 65±4%RH. The test specimens were stored for more than 24 hours under standard conditions at a temperature of 20±4°C and a relative humidity of 65±4%RH. The temperature of the dripping water used was 20±15℃ (5~35℃). (2) Operation procedure The test specimen of the fiber towel fabric was 10cm long and 10cm wide. The test specimen was placed on the sample stand. The filter paper used was made from α-cellulose, conforming to JIS P 3801 Class 1 standard, with a diameter of 110 mm and a thickness of 0.22 mm. The weight of the filter paper was measured. The filter paper used was manufactured by Advantec Co., Ltd. and is known as "Circular Qualitative Filter Paper No. 1." Measure 0.8 ml of water into a pipette, drop it into the test specimen, and wait 5 seconds to allow the test specimen to absorb the water. A filter paper was placed on top and a load of 1.3 kg (1274 Pa) was placed on top of it. Wait 5 seconds and then remove the load. The weight of the filter paper after absorbing water was measured. (3) Calculation of water rewetting rate It was calculated using the following formula. W = [(BA) / A] × 100 Where W: Water rewetting rate (%) A: Weight of filter paper before measurement (g) B: Weight of filter paper after absorbing water (g) The lower the water rewetting rate, the better. <Pile standing> The pile portion of the towel fabric was observed using an optical microscope, taking a side photograph (30x magnification).

[0031] Example 1 1. Fiber used (1) Warp pile yarn The warp pile fibers were 31.3 mm long, 4.4 μg / inch micronaire cotton. The 100% combed cotton yarn had a sliver thickness of 320 Gr / 6 yd. The spun yarn was a sheath-core type with a cotton count of 40S, with a 20-30% parallel fiber portion in the center (core) and an 80-70% sheath portion in the outer layer (sheath) (Figure 1). The spun air-spun yarn was then plied with a 38 mm long, water-soluble vinylon spun yarn (80 count single yarn) using a ring twister. The twisting coefficient (K) was set to 2.7, and the plying direction was the untwisting direction of the sheath fibers (wrapped fibers) of the spun air-spun yarn, leaving the sheath fibers largely untwisted (Figure 2). (2) Warp threads The cotton used was 31.3 mm in fiber length and 4.4 μg / inch in micronaire, and the ring-spun yarn was made of 100% cotton fiber by mass, and the cotton count was 30S two-ply yarn (394 decitex) (30S / 2). (3) Weft thread The cotton used was 31.3 mm in fiber length and 4.4 μg / inch in micronaire, and ring-spun yarn made of 100% cotton fiber by mass, with a cotton count of 20S single yarn (295 decitex) (20S / 1). 2. Towel fabric weaving The warp pile yarns, warp yarns, and weft yarns were unsized (no sizing) and were threaded on an air loom at 400 rpm to produce the loop pile fabric shown in Figures 3 and 4. The warp pile yarns were fed at a rate of 8.3 times that of the warp yarns. In this way, a double-sided pile fabric was produced with a warp density of 60 threads / 2 inches, a weft density of 54 threads / inch, and a pile length of 1.18 cm. After scouring and bleaching this pile fabric (no desizing required), it was heat-treated in a tenter and finished. The mass per unit area (basis weight) of this fabric was 313 g / m 2 It was. 3.Terry cloth refining and finishing process Next, this grey fabric was scoured in the same machine in a dilute caustic soda and alcohol ethoxylate-added bath at 98°C for 50 minutes in accordance with the usual method for processing cotton. The fabric was then bleached in a conventional hydrogen peroxide bath at 98°C for 50 minutes, set in a tenter at 135°C, and finished to an off-white finish. The pile length was 1.18 cm.

[0032] (Comparative Example 1) A towel was woven and desized in the same manner as in Example 1, except that 100% cotton ring-spun yarn, a single yarn with a cotton count of 40S, was used as the warp pile yarn and sizing was performed. The results are shown in Table 2.

[0033] [Table 2]

[0034] As is clear from Table 2, the towel fabric of Example 1 had the following advantages over Comparative Example 1. (1) Less shedding. (2) Bulky. (3) The fluffiness is less likely to be lost after washing. In other words, there is little deterioration due to washing. (4) There is little re-wetting, making wiping comfortable. [Industrial Applicability]

[0035] The towel fabric of the present invention is suitable for use as a fabric for bath towels (towels for after a bath), bath towels, bedding towels, face towels, towel handkerchiefs, sports towels, bathrobes, towel blankets, as well as for clothing, socks, rugs, bedding, etc. [Explanation of symbols]

[0036] 1 towel fabric 2a, 2b, 10, P warp pile yarn 3 Weft threads 4a, 4b, G warp threads 10. Air-spun yarn (bundled yarn) 11 Core fiber 12 Sheath fibers 13 Water-soluble fiber yarn 14 Warp pile yarn

Claims

1. A pile yarn for use in a towel fabric composed of pile yarn, warp yarn, and weft yarn, The pile yarn is a sheath-core spun yarn in which core fibers are twisted in one direction and sheath fibers are arranged parallel to the yarn axis, The pile yarn for towel fabric is characterized in that the core-sheath spun yarn is ply-twisted with a water-soluble fiber yarn, and the winding direction of the water-soluble fiber yarn is opposite to the twisting direction of the core fiber.

2. 2. The pile yarn for towel cloth according to claim 1, wherein the pile yarn is an air-spun yarn.

3. 2. The pile yarn for towel cloth according to claim 1, wherein the core fibers and the sheath fibers are interchanged by migration.

4. 2. The pile yarn for towel cloth according to claim 1, wherein the water-soluble fiber yarn is a water-soluble vinylon yarn or a polylactic acid yarn.

5. 2. The pile yarn for towel cloth according to claim 1, wherein the twist coefficient K between the core-sheath spun yarn and the water-soluble fiber yarn is greater than 0 and not greater than 4.

0. The twist factor (K) is calculated using the following formula (1). [Equation 1] Where t: number of twists (twists / 25.4mm), S: total count of spun yarn and water-soluble fiber yarn (British cotton count)

6. A method for producing pile yarn for towel fabric according to any one of claims 1 to 5, The pile yarn is air-spun by an air spinning machine, with the core fibers being parallel to the yarn axis and the sheath fibers being twisted in one direction; A method for producing pile yarn for towel fabric, characterized in that a water-soluble fiber yarn is twisted on the surface of the air spun yarn in the direction opposite to the twist direction of the core fiber, so that the core fiber is twisted in one direction and the sheath fiber is untwisted so that it is parallel to the yarn axis.

7. A towel fabric using the pile yarn for towel fabric according to any one of claims 1 to 5, The towel fabric is a pile fabric, The pile yarn is a core-sheath spun yarn, the core fibers being twisted in one direction and the sheath fibers being arranged parallel to the axis of the yarn.

8. A method for manufacturing a towel fabric using the pile yarn for towel fabric according to any one of claims 1 to 5, A method for producing towel cloth, comprising weaving the pile fabric into a pile fabric and then dissolving the water-soluble fiber yarns on the surface of the pile yarns.

9. The method for producing a towel cloth according to claim 8, wherein the water-soluble fiber yarn is dissolved during scouring, bleaching and / or dyeing of the pile fabric.

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