WO2024225182A1 - Towel fabric and method for manufacturing same - Google Patents

Abstract

The problem to be solved by the present invention is to provide: a towel fabric that has good raising properties of pile, a soft and bulging texture, and water absorbency; and a method for manufacturing the towel fabric. The present invention is a towel fabric, in which warp pile yarns are locked to warp yarns and weft yarns, wherein the warp pile yarns are silo-spun spun yarns (19) and are spun yarns with no twist or a loose twist to which a secondary twist has been applied in an untwisting direction, which is a direction opposite the direction of a primary twist of a plurality of roving yarns (12a, 12b). Because of a twisting tendency of the primary twist and migration of the primary twist, there is entanglement between fibers, and because yarns are untwisted or loosely twisted, constituent fibers are present in a free state; consequently, the pile yarns have good raising properties and have a soft and bulging texture.

Description

Towel fabric and its manufacturing method

The present invention relates to a towel fabric that uses siro spun yarn for the pile yarn and a method for manufacturing the same.

Traditionally, towel fabrics have been basically made by weaving warp pile yarns, warp yarns, and weft yarns into pile fabric. 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 Document 1 proposes using synthetic sirospun yarn to make a heathered yarn for pile fabric. Patent Documents 2 and 3 propose using loosely twisted sirospun yarn to make a pile fabric.

Japanese Patent Application Publication No. 10-088440 JP 2019-137941 A JP 2019-137942 A

However, the above-mentioned conventional technology had problems with pile standability and soft, fluffy feel, and further improvements were required.

As a result of extensive research into maximizing the characteristics of towel fabric, the present invention provides a towel fabric with good pile standing, a soft, fluffy texture, and water absorption, as well as a manufacturing method for the same.

　但し、t：撚回数(回／25.4ｍｍ)、Ｓ:綿番手（英式綿番手） A towel fabric according to one embodiment of the present invention includes warp yarns, weft yarns, and warp pile yarns, and the warp pile yarns are engaged with the warp yarns and weft yarns, the warp pile yarns being spun spun yarns, and the spun spun yarns are single yarns of untwisted or loosely twisted spun yarns to which a secondary twist has been applied in the opposite direction to the primary twist direction of a plurality of roving yarns, i.e., in the untwisting direction,
The spun spun yarn is characterized in that the twist coefficient K is 0 to 3.0.
The twist factor (K) is calculated using the following formula (1).

Where, t: number of twists (twists/25.4mm), S: cotton count (British cotton count)

The towel fabric manufacturing method according to one aspect of the present invention is the towel fabric manufacturing method described above, characterized in that the warp pile yarn is a sirospun spun yarn, and a secondary twist is applied in the opposite direction to the primary twist direction of multiple roving yarns with the same twist direction to produce a single untwisted or loosely twisted spun yarn.

A towel according to one embodiment of the present invention is a towel fabric comprising warp yarns, weft yarns, and warp pile yarns, with the warp pile yarns engaged with the warp yarns and weft yarns, and the warp pile yarns are spun spun yarns that are untwisted or loosely twisted with a secondary twist applied in the opposite direction (untwisting direction) to the primary twist direction of multiple roving yarns, thereby providing a towel fabric and a manufacturing method thereof that has good pile stand properties, a soft, fluffy texture, and water absorbency. That is, the yarn structure has multiple rovings with a secondary twist applied in the opposite direction (untwisting direction) to the primary twist direction, and this, combined with the fact that the twist tendency of the primary twist and migration of the primary twist (the phenomenon in which single fibers are twisted inward or outward) remain, there is entanglement of the fibers, and the yarn is either untwisted or loosely twisted, and each constituent fiber exists in a free state, resulting in a pile yarn with good nap standing and a soft, fluffy texture.

FIG. 1 is a schematic perspective view of a sirospun spinning device according to one embodiment of the present invention. FIG. 2 is a schematic explanatory diagram of a towel fabric according to one embodiment of the present invention. FIG. 3 is a diagram showing the weave structure of the fiber towel fabric. FIG. 4 is a side photograph (magnification: 50 times) of the pile portion of the towel fabric in Example 1 of the present invention. FIG. 5 is a plan view (magnification: 10 times) of the towel fabric of Example 1 of the present invention. FIG. 6 is a side photograph (magnification: 50 times) of the pile portion of the towel fabric in Example 2 of the present invention. FIG. 7 is a plan view (magnification: 10 times) of the towel fabric of Example 2 of the present invention. FIG. 8 is a side photograph (magnification: 50 times) of the pile portion of the ol fabric of Comparative Example 1. FIG. 9 is a plan view photograph (magnification: 10 times) of the towel fabric of Comparative Example 1.

The present invention focuses on the fact that warp pile yarns (hereinafter also referred to as 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 fuzz shedding, and has conducted further research and obtained the following findings: That is, the towel fabric of the present invention is a towel fabric that includes warp yarns, weft yarns, and warp pile yarns, in which the warp pile yarns are engaged with the warp yarns and weft yarns, the warp pile yarns being spun spun yarns, and a secondary twist is applied in the opposite direction to the primary twist direction of the multiple rovings, i.e., in the untwisting direction, and the warp pile yarns are made of untwisted or loosely twisted spun yarns. It has been found that this has the following advantages.
(1) The warp pile yarn is a sirospun yarn, and a secondary twist is added in the opposite direction to the primary twist direction of the multiple roving yarns, with the same or more twists than the primary twist. As a result, a secondary twist is applied, but the twist tendency of the primary twist remains, migration of the primary twist (the phenomenon in which single fibers are twisted inward or outward) also remains, there is entanglement between the fibers, and since it is a non-twisted yarn or a loosely twisted yarn, each component fiber exists in a free state, the pile standing property is good, and the pile yarn has a soft and fluffy texture. Because of the soft and fluffy texture, it can be softly touched against the skin and can efficiently wipe off sweat and moisture (texture effect, wiping effect).
(2) Since the 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).
(3) The intertwining of the constituent fibers reduces pilling (impact of reduced pilling), reduces change in texture after washing, and maintains the original soft, fluffy texture (effect of durability of texture after washing).
(4) When producing spun yarn, there is no need to use water-soluble fibers (e.g., water-soluble vinylon), glue, etc., which reduces costs. However, if water-soluble fibers (e.g., water-soluble vinylon), glue, etc. are used and then removed after the fabric is made, voids are generated, which reduces the sense of fullness (volume) and increases the amount of fluff that falls off.
(5) Since there is no need to use water-soluble fibers (e.g., water-soluble vinylon), glue, etc. when producing spun yarn, the environmental load caused by factory wastewater containing these materials can be reduced.

In the present invention, sirospun spun yarn is used as the warp pile yarn. Sirospun is a yarn in a state similar to a two-ply yarn, which is made by drafting multiple rovings separately at regular intervals and then twisting them together. Compared to two-ply yarns made by twisting multiple threads together, the fibers of sirospun spun yarn are arranged regularly on the yarn surface and have less fuzz. For this reason, it can be used as a warp pile yarn in single yarn. In addition, due to the unique yarn structure of sirospun spun yarn, even if it is a non-twisted yarn or a loosely twisted yarn, the fibers are entangled with each other, which does not interfere with winding, and thread breakage during weaving is unlikely to occur, and it is easy to pass through the weaving process. Note that the multiple rovings referred to above means two or more rovings, and it is known to use two or three rovings. An example of two rovings will be explained below.

但し、t：撚回数(回／25.4ｍｍ)、Ｓ:綿番手（英式綿番手）
　これにより、パイル糸は無撚り糸か又は甘撚り糸となる。 The spun spun yarn of the present invention preferably has a twist coefficient K of 0 to 3.5, more preferably 0 to 3.3, and even more preferably 0 to 3.0. The twist coefficient (K) is calculated by the following formula (Math 1).

Where, t: number of twists (twists/25.4mm), S: cotton count (British cotton count)
This results in the pile yarn being either a no twist yarn or a loosely twisted yarn.

It is preferable that the sirospun yarn has a secondary twist in the opposite direction to the primary twist direction of the two rovings, the number of twists being equal to or greater than the number of twists in the primary twist. For example, if the primary twist directions of the two rovings are both in the Z direction, the secondary twist is in the S direction, and the number of twists in the secondary twist is equal to or greater than the number of twists in the primary twist. This allows each of the constituent fibers to exist in a more free state, resulting in a pile yarn with good pile standing properties and a soft, fluffy texture.

The spun spun yarn is preferably 100% cotton. 100% cotton provides a soft, fluffy texture and is absorbent. As long as these properties are not lost, it may be blended with natural fibers including hemp and wool, regenerated fibers including rayon, acetate, and polyester, semi-synthetic fibers, and chemical fibers. The blending rate of these fibers other than cotton is preferably 30% by mass or less. There are no particular restrictions on the yarn count of the spun spun yarn, but thin yarns of 100 to 40 are preferably used for thin fabrics, 30 to 16 for medium weight fabrics, and thick yarns of 12 to 8 for heavy weight fabrics.

It is preferable that the silospun spun yarn is mercerized. In mercerization, the yarn is immersed in an aqueous solution of caustic soda (sodium hydroxide) and tensioned to improve firmness, stiffness, shape memory, luster, strength, shrink resistance, and dyeability. This is thought to be because part of the cotton crystal structure changes from type I to type II via alkali cellulose, and the structure around the crystals is also rearranged. Mercerization itself has been well known for a long time, as described in the fiber dictionary. When the silospun spun yarn of the present invention, which is untwisted or loosely twisted in the untwisted direction, is mercerized, the pile standing property, soft and fluffy texture, water absorption, etc. are synergistically improved and shape-memorized, resulting in a high-quality towel fabric. The concentration of caustic soda (sodium hydroxide) in the aqueous solution is preferably 15% by mass or more, more preferably 20% by mass or more. For the tensioning treatment, it is preferable to set the speed ratio between the supply roller and the take-up roller to about 1 to 1.1, and to impregnate the material in an aqueous solution of caustic soda (sodium hydroxide) in a tensioned state.

The method for producing the towel fabric of the present invention includes the following steps.
(1) Two rovings with the same twist direction are twisted in the opposite direction (untwisting direction) to the primary twist direction to produce a non-twisted or loosely twisted spun yarn. Preferably, a secondary twist is added that is equal to or greater than the number of twists in the primary twist. This produces a single sirospun yarn, which is then used as a warp pile yarn to produce a towel fabric.
(2) 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, filament composite spun yarn, or bonded spun yarn.
(3) After the towel fabric is woven, it is bleached, scoured, dyed, etc. according to conventional methods to produce towel fabric.

The sirospun spun yarn is preferably cotton with a micronaire of 4 to 7 and an average fiber length of 28 to 45 mm. Here, micronaire refers to mass micrograms (μg) per inch (25.4 mm). Cotton with a micronaire of 4 to 7 and an average fiber length of 28 to 45 mm has a lot of crimp and high crimp strength, so when applied to the sirospun spun yarn of the present invention, the twist tendency of the primary twist and migration of the primary twist (the phenomenon in which single fibers are twisted inward or outward) tend to remain, the fibers tend to entangle with each other, and since it is a non-twisted yarn or a loosely twisted yarn, each constituent fiber exists in a free state. For this reason, the pile yarn has good nap standing properties and is soft and fluffy in texture. Specific examples shown in Table 1 below are preferable. Among these, Shankar 6 from India is more preferable.

 

 

The towel of the present invention is suitable for bath towels (bath towels), bath towels, face towels, towel handkerchiefs (towel squares), hand towels, wash towels, hand towels, bath mats, sports towels, beach towels (body towels), etc. The fabric blend ratio, yarn type, yarn usage, mass per unit (bath weight), etc. are appropriately set according to the required properties such as fluffiness and water absorption. The basis weight can be controlled to be large or small by changing the pile length (long to short) of the pile yarn. Here, examples of preferable basis weights that can exert the effects of the present invention are 100 to 250 g/ ^m2 for thin fabrics, 250 to 500 g/ ^m2 for medium-weight fabrics, and 500 to 1000 g/ ^m2 for heavy fabrics. In addition, a thickness of less than 100 g/ ^m2 is thin and lacking in bulk, while a thickness of more than 1000 g/ ^m2 is too thick and heavy, and neither is preferable.

In the present invention, cotton is the most excellent in terms of texture, water absorption, hygroscopicity, and ease of handling as a towel, but cotton may be blended with small amounts of linen, rayon, cupra, acetate, or wool. Blends of rayon, cupra, and acetate provide hygroscopicity, while wool provides heat retention.
The woven grey fabric is desized in a jet dyeing machine in the same manner as cotton processing, and then scoured under standard cotton scouring conditions (constant temperature of 95-98°C, hold time of 50 minutes, dilute caustic soda solution, alcohol ethoxylate added bath). After scouring, it is bleached under standard conditions (98°C, 50 minutes, hydrogen peroxide solution). It is then dehydrated and finished by setting in a tenter (off-white finish). This bleaching process also involves hot water treatment. If it is desired to include synthetic fiber crimped yarn, the false twisted yarn is crimped by the above scouring, and then the fabric is finished as is.

Next, if dyeing is to be performed after scouring and bleaching, reactive dyes are used for cotton (60-80°C, 40 minutes). Disperse dyes are used for polyester fibers (130°C, 40 minutes). When dyeing fabrics containing cotton and polyester, in addition to plain dyeing in 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 yarn-dyed polyester yarn, shrinkage can be expressed at the same time as scouring, and the yarn can be bleached and dyed, and then woven to obtain yarn-dyed towel fabric. In the case of yarn-dyed cotton yarn, the yarn can be refined, bleached, dyed, and then woven to obtain yarn-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.

The following description will be given with reference to the drawings. In the following drawings, the same reference numerals denote the same parts.
1 is a schematic perspective view of a sirospun spinning device according to an embodiment of the present invention. In this sirospun spinning device 10, two roving bobbins 11a, 11b are hung from one spindle on a creel (roving supplying device), and rovings 12a, 12b supplied from the two roving bobbins 11a, 11b are sent in parallel to a draft device 15 through a two-mouth trumpet guide 13 provided upstream (roving bobbin side) of a back roller 14. The rovings 12a, 12b are then drafted at a predetermined interval between the back roller 14 and an apron 16, and between the apron 16 and a front roller 17, respectively, to form fleeces 18a, 18b. The fleeces 18a, 18b are spun from the front roller 17 and twisted downstream of the front roller 17 by a twisting mechanism caused by the rotation of the spindle 21 to form one spun yarn 19, which is then taken up on a bobbin 22 via a snell wire 20 and a traveler 21. For example, the twist directions of the primary twist of the two rovings 12a, 12b are both Z-direction, the twist direction by the spindle 21 is S-direction, and the rovings are twisted in the untwisting direction. The number of twists by the spindle 21 (secondary twist number) is set to be the same as or greater than the number of twists in the primary twist.

Figure 2 is a schematic diagram of towel fabric 1 according to one embodiment of the present invention. This towel fabric 1 is composed of warp pile yarns 2a, 2b, weft ground yarns 3, and warp ground yarns 4a, 4b, and the warp pile yarns 2a, 2b form loop piles while being fixed to the ground structure composed of the weft ground yarns 3 and warp ground yarns 4a, 4b. The obtained towel fabric 1 is cut to a specified size and the ends are processed to make a towel.

Figure 3 is a woven fabric diagram of a towel fabric according to one embodiment of the present invention. This woven fabric is a three-pick terry motion weave. The warp pile yarns cross once for 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 3, when viewed from the warp yarns, black and x indicate floating yarns, and white indicates sinking yarns.

The present invention will be described in more detail below with reference to 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 bulk height calculated using the following formula.
The higher the value, the softer and better the texture. The thickness was measured according to JIS L-1096 (2010) 8.5 Bulkiness Test, and the basis weight was measured by precisely weighing the weight of a 1 m square. The measurements were taken at five points and expressed as the average value.
Bulk depth (cm ³ /g) = thickness (mm) / basis weight (g/m ² ) × 1000
(2) Evaluation of fluffy texture The towel fabric was compressed at a constant speed using a compression tester: KES-G5 (manufactured by Kato Tech Co., Ltd.) to determine the compression work: WC = (gf.cm ² ). Measurements were taken at five points and the average value was expressed.
The WC value is the amount of energy required to compress the fabric; the higher the value, the better the towel is compressed, the more full it becomes, and the fluffier it feels, which is better.
(3) Evaluation of Washing Durability of Texture 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.cm2 ) was measured at 5 locations and expressed as an 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 better the material.
(4) Evaluation of drainage during washing A 35 cm wide piece of towel fabric was cut to a length of 80 g, its weight was accurately measured to one decimal place, and it was soaked in water for 20 minutes. The wet towel fabric was then taken out and centrifuged in the spin tub of a washing machine for 4 minutes, its weight was accurately measured, 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 lead to a faster subsequent drying speed. Three measurements were taken and the average value was used.
Residual moisture content (%) of fabric = (weight of fabric after immersion in water and dehydration (W ₁ )) - (weight of fabric before immersion in water (W ₀ )) / (weight of fabric before immersion in water (W ₀ )) x 100
(5) Evaluation of shedding of fuzz in washing of towel fabric The shedding of fuzz in washing was measured according to JIS L0217 (1995), Method 103. The fuzz shedding rate (%) was calculated using the following formula, and the smaller the value, the less fuzz shedding and the better the result. The number of measurements was 5, and the average value was used.
Lint shedding rate (%) = (weight of lint that has fallen off after washing (g ₁ )) / (weight of towel before washing (g ₀ )) x 100
(6) Water absorption evaluation (modified Larose method)
The measurement was performed 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 x 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 larger the amount of moisture absorbed from the skin, which is preferable.
(7) Water absorption rate (dropping method)
The water absorption rate of the towel fabric was measured based on the Vuillet method of JIS L 1907 (2010). The test outline was to drop a drop of water onto the towel fabric from a height of 10 cm, measure the water absorption time (seconds) until the mirror-like surface of the drop disappeared three times, and calculate 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 the fabric, the water is absorbed, and the water is absorbed with filter paper. The water-rewet rate is evaluated as the property of the fabric not releasing the water, i.e., the water-rewet rate, which coincides with the evaluation of the water absorbency felt by people when using a fiber fabric such as a towel. The lower the water-rewet rate, the greater the water absorbency of the fabric, and the better it can be evaluated to be.
(1) Test environment and other conditions: The test environment was under 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 of 20±4°C temperature and 65±4% RH.
The test specimens were stored for at least 24 hours under standard conditions at a temperature of 20±4°C and a relative humidity of 65±4% RH.
The water used for dripping was at a temperature of 20±15°C (5 to 35°C).
(2) Operating procedure: The size of the test specimen 1 of the fiber towel fabric was 10 cm in length and 10 cm in width. The test specimen 1 was placed on a sample stand (not shown).
The filter paper used was made of α-cellulose conforming to JIS P 3801 Class 1 standard, with a diameter of 110 mm and a thickness of 0.22 mm, and the weight of the filter paper was measured. The filter paper used was Advantec Co., Ltd., product name "Circular Qualitative Filter Paper No. 1".
0.8 ml of water was measured into a pipette and dropped into test specimen 1. The pipette was then left for 5 seconds to allow the water to be absorbed into test specimen 1.
-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 release the load.
-The weight of the filter paper after absorbing water was measured.
(3) Calculation of Water Re-wetting Rate Calculation was performed using the following formula.
W=[(B-A)/A]×100
Where W: Water rewetting rate (%)
A: Weight of the filter paper before measurement (g)
B: Weight of filter paper after absorbing water (g)
<Pile standing property>
The pile portion of the towel fabric was observed by a side photograph (magnification: 50x) using an optical microscope.

Example 1
(1) Warp pile yarns Warp pile yarns were produced using a sirospun spinning device shown in Figure 1. Shankar 6 cotton from India was used. The two rovings 12a and 12b were twisted in the Z direction for the primary twist, and the twisting direction by the spindle 21 was S direction, and they were twisted in the untwisting direction. The fineness of the roving was 5 g/6 yards (9113 decitex), and the Z direction twist number of the roving was 5 turns/inch (twist factor K=1 in terms of cotton count). The obtained spun yarn had a cotton count of 20 and a twist number of 11.7 turns/inch (twist factor K=2.6).
(2) Warp yarns For the warp yarns, Indian cotton filling was used, and ring spun yarn No. 40 two-ply yarn with a twist coefficient of 3.8 for the first twist and 2.2 for the second twist was used.
(3) Weft Yarn For the weft yarn, Indian cotton filling was used, and ring spun yarn No. 20 single yarn with a twist coefficient of 4.0 was used.
(4) Weaving of towel fabric The warp pile yarns and warp ground yarns were sized, and a pile loom was used to weave the fabric shown in Figure 2 into the weave shown in Figure 3. The warp density was 34 threads/inch, the weft density was 56 threads/inch, the basis weight was 463 g/ ^m2 , and the fabric blend ratio was 100% cotton.
(5) Scouring and finishing of towel fabric Next, the grey fabric was desized in a liquid jet dyeing machine in the usual manner similar to cotton processing (55°C x 20 minutes, amylase, surfactant-added bath), and then scoured in the same machine at 98°C for 50 minutes in a dilute caustic soda, alcohol ethoxylate-added bath.
It was then bleached in a conventional hydrogen peroxide bath at 98° C. for 50 minutes, tentered at 135° C. and finished (off-white finish). The pile length was 1.15 cm.

Example 2
The same procedure as in Example 1 was carried out except that the warp pile yarns were immersed in an aqueous solution of 200 g/L of caustic soda (sodium hydroxide), tensioned, and mercerized.

(Comparative Example 1)
The same procedure as in Example 1 was carried out, except that the twist directions of the two rovings 12a, 12b used as the warp pile yarns were both in the Z direction, and the twist direction of the spindle 21 was in the Z direction. The obtained spun yarn had a cotton count of 20 and a twist number of 14 turns/inch (twist coefficient K=3.1).
The results are shown in Table 2.

 

 

As is clear from Table 2, the towel fabrics of Examples 1 and 2 were better than Comparative Example 1 in bulkiness, total and post-wash compression work WC, pilling rate, improved Larose method water absorption index, water absorption rate, wet-back rate, and nap standing (Figures 4, 6, and 8). As a result, it was confirmed that the towel fabric of one embodiment of the present invention is a towel fabric that has good pile standing, a soft and fluffy texture, and water absorbency that could not be obtained with conventional technology. Furthermore, the towel fabric of Example 2 (pile yarn is mercerized) had the highest compression work WC after 20 washes and water drainage property: residual moisture content in washing, and also had good firmness, stiffness, shape memory, luster, strength, shrink resistance, and dyeability.

The towel fabric of the present invention is also suitable for use in face towels, bath towels, towel handkerchiefs, sports towels, bathrobes, towel blankets, clothing, socks, rugs, bedding, etc.

1 towel fabric 2a, 2b warp pile yarn 3 weft yarn 4a, 4b warp yarn 10 sirospun spinning device 11a, 11b roving bobbin 12a, 12b roving yarn 13 trumpet guide 14 back roller 15 draft device 16 apron 17 front roller 18a, 18b fleece 19 spun yarn 20 snell wire 21 spindle 22 bobbin

Claims (8)

A towel fabric comprising warp yarns, weft yarns, and warp pile yarns, the warp pile yarns being engaged with the warp yarns and the weft yarns,
The warp pile yarn is a sirospun yarn,
The sirospun yarn is a single yarn of a non-twisted or loosely twisted spun yarn to which a secondary twist has been applied in the opposite direction to the primary twist direction of a plurality of rovings, i.e., in the untwisting direction;
The spun spun yarn is a towel fabric having a twist coefficient K of 0 to 3.0.
The twist factor (K) is calculated using the following formula (1).

Where, t: number of twists (twists/25.4mm), S: cotton count (British cotton count) The towel fabric according to claim 1, wherein the silospun yarn is 100% cotton. The towel fabric according to claim 1, wherein the silospun spun yarn is cotton having a micronaire of 4 to 7 μg and an average fiber length of 28 to 45 mm.
Here, micronaire refers to the average mass per inch (25.4 mm), in micrograms (μg). The towel fabric according to claim 1, wherein the silospun yarn is mercerized. The towel fabric according to claim 1, wherein the silospun yarn has a cotton count of 8 or more and less than 40. A method for producing a towel fabric according to any one of claims 1 to 5,
The warp pile yarn is a sirospun yarn,
This method for producing a towel fabric is characterized in that a plurality of rovings having the same twist direction are subjected to a secondary twist in a direction opposite to the primary twist direction to form a single untwisted or loosely twisted spun yarn. The method for manufacturing towel fabric according to claim 6, wherein the silo spun yarn is mercerized by immersing the yarn in an alkaline aqueous solution and tensioning it. The method for producing a towel fabric according to claim 6, wherein the number of twists in the secondary twist of the sirospun yarn is the same as or greater than the number of twists in the primary twist.

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