woven fabric

Abstract

To provide a thin woven fabric which is made of only warp and weft threads and has a high density and a soft texture. [Solution] This is a woven fabric made only of warp and weft yarns without using pile yarns, where the warp yarns are spun yarns of uniform thickness, and the weft yarns are spun yarns of uniform thickness and spun yarns of uneven thickness, the spun yarns of uneven thickness weft yarns are thicker in fineness (count) than the spun yarns of uniform thickness for the warp and weft yarns, and the surface of the woven fabric is uneven. This woven fabric is suitable for towels, pajamas, shirts, sheets, etc.

Description

[Technical Field]

[0001] The present invention relates to a woven fabric that does not use pile yarns. [Background technology]

[0002] Traditionally, towel fabrics have been basically made by using warp pile yarns, warp yarns, and weft yarns to create pile fabrics. Furthermore, in order to improve water absorption, towel fabrics have a high basis weight (mass per unit area) and use thick, high-fineness constituent yarns. Patent Documents 1 and 2 propose making a pile knitted fabric using loosely twisted sirospun yarn. Patent Document 3 proposes making a towel fabric using pile yarns made by twisting multiple yarns. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-137941 [Patent Document 2] Japanese Patent Application Publication No. 2019-137942 [Patent Document 3] Patent Publication No. 2021-188173 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the above-mentioned conventional technology, the pile yarns are fixed with warp and weft yarns, which results in a stiff and rough texture, a loose weave density, and poor water wiping properties, making it unsuitable for thin towels.

[0005] To solve the above-mentioned conventional problems, the present invention provides a woven fabric which is made of only warp and weft threads, has a high density, is thin, has a soft texture, and has good water-wiping properties. [Means for solving the problem]

[0006] One embodiment of the present invention is a woven fabric made only of warp and weft yarns without using pile yarns, The warp yarn is a spun yarn of uniform thickness, The weft yarn is a spun yarn having a uniform thickness and a spun yarn having uneven thickness, The spun yarn having uneven thickness of the weft has a larger fineness than the spun yarn having uniform thickness of the warp and weft, The woven fabric has a surface formed with irregularities. [Effects of the Invention]

[0007] The present invention does not use pile yarns, but is composed only of warp and weft yarns, with the warp yarns being uniformly spun and the weft yarns being uniformly spun and unevenly spun, with the unevenly spun weft yarns being thicker than the uniformly spun warp and weft yarns, and the uneven surface of the woven fabric gives it a dense texture and a thickness comparable to that of a pile towel. The absence of pile reduces shedding and reduces residual moisture immediately after washing. Furthermore, the woven fabric is thin, soft to the touch, and easily wipes away water. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic plan view of a spun yarn having uneven thickness according to one embodiment of the present invention. [Figure 2] FIG. 2 is a schematic explanatory diagram of an apparatus for producing spun yarn having uneven thickness according to one embodiment of the present invention. [Figure 3] FIG. 3 is a weave diagram of a woven fabric according to one embodiment of the present invention. [Figure 4] FIG. 4 is a plan view photograph (magnification 2.5 times) of the towel cloth of Example 1 of the present invention. [Figure 5] FIG. 5 is a cross-sectional photograph (magnification: 20 times) of the towel cloth of Example 1 of the present invention. [Figure 6] FIG. 6 is a cross-sectional photograph (magnification: 20 times) of the towel fabric of Comparative Example 1. [Figure 7] FIG. 7 is a cross-sectional photograph (magnification: 20 times) of the towel fabric of Comparative Example 2. [Figure 8] FIG. 8 is a planar photograph (magnification 2.5 times) of a thick portion of the spun yarn having uneven thickness in Example 1 of the present invention. [Figure 9] FIG. 9 is a planar photograph (magnification 2.5 times) of a thin portion of the spun yarn having uneven thickness in Example 1 of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0009] The present invention is a woven fabric made only of warp and weft yarns, without using pile yarns. Using pile yarns requires that they be fixed by the warp and weft yarns, resulting in problems such as a stiff texture, a rough feel, and a loose weave, making it unsuitable for thin towels. Spun yarns of uniform thickness are used for the warp yarns, while spun yarns of uniform thickness and spun yarns of varying thickness are used for the weft yarns. The spun yarns of varying thickness are thicker than the uniform-thickness spun yarns of the warp and weft yarns, creating an uneven surface for the woven fabric. In the above, a thicker spun yarn is the same as a larger fineness (count).

[0010] The uniform thickness spun yarns and uneven thickness spun yarns for the warp and weft are preferably single yarns, which can reduce costs.

[0011] The twist coefficient K of the uniform warp and weft thickness spun yarns and the uneven thickness spun yarns is preferably 0.5 to 5.0, more preferably 1.0 to 4.5, and even more preferably 1.5 to 4.0, which can improve the fluffing and anti-pilling properties. The twist factor (K) is calculated using the following formula (1).

number

[0012] The weft yarn with uneven thickness is preferably 1.2 to 4.0 times thicker (higher) than the uniform thickness spun yarn, and more preferably 1.5 to 3.5 times thicker. This allows the unevenness of the fabric surface to be increased, and reduces contact resistance with the skin when wiping sweat.

[0013] The cover factor of the warp yarn is preferably 1.1 times or more higher than the cover factor of the weft yarn, more preferably 1.2 times or more, and even more preferably 1.3 times or more. The upper limit is 5 times or less. This prevents transparency and provides a good appearance not only for towels but also for innerwear such as shirts and T-shirts. The cover factor is calculated using the following formula (1).

number

[0014] The warp density of the woven fabric is preferably 25 to 55 threads / inch, more preferably 30 to 55 threads / inch, and even more preferably 35 to 50 threads / inch. The weft density is preferably 20 to 50 threads / inch, more preferably 22 to 45 threads / inch, and even more preferably 25 to 40 threads / inch. Since the warp threads are thin and the weft threads are thick, it is preferable that the warp density be smaller than the weft density.

[0015] For spun yarn with uneven thickness, it is preferable that the fineness of the thicker parts is 1.05 or more larger than that of the thinner parts, which allows for greater unevenness in the fabric.

[0016] The woven fabric of the present invention is composed of cotton fibers. Cotton fibers have excellent water absorption properties and have been commonly used in woven fabrics for some time. The fabric does not contain water-soluble fibers such as polyvinyl alcohol (PVA). Water-soluble fibers are subsequently dissolved in water and discarded, which not only increases costs but also poses environmental pollution problems.

[0017] The warp and weft yarns each preferably contain at least one cotton fiber selected from the group consisting of long fibers and extra-long fibers at 50% by mass or more. Specific examples are the long fibers or extra-long fibers shown in Table 1 below. Long fibers or extra-long fibers have a high crimp and crimp strength, resulting in a spun yarn with a soft, fluffy texture. [Table 1]

[0018] The uniformly sized warp and weft yarns may be ring spun yarns, air spun yarns (bonded spun yarns), open-end spun yarns, or the like. As an example, a spun yarn with uneven thickness can be obtained as follows: In the ring spinning process, the speed of the back roller of the drafting device is varied between 10 rpm and 50 rpm, and the speed of the middle roller is set to 1.5 to 2 times the speed of the back roller, and the speed of the front roller is set to 20 times the speed of the back roller. By varying the speed of each roller in this way, uneven portions are formed in the yarn. In terms of draft ratio, the fiber bundle (roving) is stretched in the order of the back roller, middle roller, and front roller at a ratio of 1:2:50.

[0019] An example of the basis weight that can exert the effects of the present invention is a mass per unit area (basis weight) of 100 to 370 g / m 2 is preferable, and more preferably 110 to 350 g / m 2 and more preferably 120 to 300 g / m 2 is.

[0020] The woven fabric of the present invention may be of any weave, such as plain weave, twill weave (diagonal weave), satin weave, or patterned weave. Twill weave (diagonal weave) and satin weave are preferred, and weft diagonal weave and satin weave are more preferred. Weft diagonal weave and satin weave have the advantage that the weft threads are more visible on the surface of the fabric, bringing out the characteristics of the weft threads.

[0021] The woven fabric of the present invention is dense, has a soft texture, and is easy to wipe off water from, making it suitable for bath towels (towels after a bath), bath towels, face towels, hand towels, towel handkerchiefs (handkerchiefs), hand towels, washcloths, hand towels, bath mats, sports towels, beach towels (body towels), etc. Furthermore, because it is dense, soft, thin, and does not stick to the skin even when wet, it is suitable for clothing such as innerwear (shirts, pants, etc.), T-shirts, jackets, outerwear, pajamas, socks, bedding such as sheets, futon covers, and pillowcases, tablecloths, dishcloths, etc.

[0022] The woven fabric of the present invention is best made of cotton in terms of texture, water absorption, moisture absorption, and ease of handling as a towel, but it is also acceptable to blend small amounts of linen, rayon, cupra, acetate, or wool with cotton. Blends of rayon, cupra, and acetate provide moisture absorption, while wool provides heat retention.

[0023] The woven fabric is desized in a jet dyeing machine in accordance with the cotton processing process, 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). Following scouring, the fabric is then bleached under standard conditions (98°C, 50 minutes, hydrogen peroxide solution). It is then dehydrated and set in a tenter for finishing (off-white finish). This bleaching process also involves hot water treatment. If it is desired to incorporate synthetic fiber crimped yarns, the crimp of the false-twisted yarn is expressed during the scouring process, and the fabric is then finished as is.

[0024] Next, if dyeing is performed after scouring and bleaching, cotton is dyed with a reactive dye (60-80°C, 40 minutes). Polyester fibers are dyed with a disperse dye (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 obtain a pre-dyed woven fabric. In the case of pre-dyed cotton yarn, the yarn can be scoured, bleached, dyed, and woven to obtain a pre-dyed woven fabric. As such, the present invention allows for the commercialization of products with excellent color and design properties through a variety of dyeing methods.

[0025] The following description will be given with reference to the drawings, in which the same reference numerals denote the same parts. Figure 1 is a schematic plan view of a spun yarn 1 with uneven thickness according to one embodiment of the present invention. This spun yarn 1 has thicker and thinner portions 2 and 3 arranged along the length of the yarn, and is twisted throughout.

[0026] 2 is a schematic explanatory diagram of an apparatus for producing a spun yarn having uneven thickness according to one embodiment of the present invention. In this spinning apparatus 10, a roving bobbin 11 is hung from a creel (roving supplying device), and a roving 12 supplied from the roving bobbin 11 is sent to a drafting device 15 through a trumpet guide 13 provided upstream (on the roving bobbin side) of a back roller 14. The roving 12 is drafted at a predetermined interval between the back roller 14 and an apron 16, and between the apron 16 and a front roller 17 to form a fleece 18. The fleece 18 is then spun out from the front roller 17 to form a single yarn of a spun yarn 19. After passing through a snail wire 20, the fleece 18 is twisted by a twisting mechanism that rotates a spindle 21, and is then wound onto a bobbin 22.

[0027] Figure 3 is a weave diagram of a woven fabric according to one embodiment of the present invention. This weave diagram is an example of a weft diagonal weave. In Figure 3, when viewed from the warp side, black and cross marks indicate floating threads, and white marks indicate sinking threads. Also, A indicates a spun yarn with uneven weft thickness, and B indicates a spun yarn with a uniform weft thickness. [Example]

[0028] The present invention will be explained in more detail below using examples, but the present invention is not limited to the following examples. The finished fabric was evaluated as follows: <Evaluation of soft texture> The softness of the texture is expressed as the volume per 1g of fabric, and is calculated using the following bulkiness 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 a 1m square. Measurements were taken at five locations, and the average value was calculated. Bulk height (cm 3 / g) = Thickness (mm) / Basis Weight (g / m 2 ) x 1000 <Evaluation of drainage performance in washing> A 35cm wide piece of 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 fabric was then removed and centrifuged in the spin tub of a washing machine for 4 minutes, the weight was accurately measured, and the residual moisture content (%) of the fabric was calculated using the following formula. The smaller the value, the better the drainage. Better the drainage tends to be, which means the subsequent drying speed will be faster. Three measurements were taken and the average value is shown. 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 <Evaluation of shedding of fabrics 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 fabric before washing (g0)) x 100 <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. <Water absorption rate (dropping method)> The water absorption rate of woven fabrics 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 fabric from a height of 10 cm, measuring the water 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 then 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 size of the fabric test sample 1 was 10 cm long and 10 cm wide. The test sample 1 was placed on a sample stand (not shown). 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 test sample 1, and wait 5 seconds for test sample 1 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) <Measurement of unevenness> Cross-sectional photographs of the fabric (magnification 20x) were taken using an optical microscope, and measurements were taken at 10 points on each of the thick and thin sections. <Test method for stickiness when wiping> The test was carried out on dry and wet samples. The wet samples were prepared to a moisture content of 75%. Measuring equipment: A multi-function friction tester, TL201Tt (manufactured by Trinity Labs), was used to determine the average dynamic friction coefficient when the friction probe moved linearly across the surface of the fabric sample at a constant load and speed. Measurements were taken at 10 locations, and the average value was expressed. The average coefficient of dynamic friction indicates the degree to which the fabric sticks when rubbed; the smaller the value, the less the fabric sticks to the skin, and the easier it is to remove from the skin, resulting in a pleasant wiping experience. <Test method for roughness when wiping> The test was carried out on dry and wet samples. The wet samples were prepared to a moisture content of 75%. Measuring equipment: A multi-function friction tester, TL201Tt (manufactured by Trinity Labs), was used to determine the standard deviation when the friction probe moved linearly across the surface of the fabric sample at a constant load and speed. Measurements were taken at 10 locations, and the average value was expressed. The standard deviation is the degree of roughness of the fabric when rubbed; the smaller the value, the less rough the fabric feels and the better the wiping experience.

[0029] Example 1 (1) Raw cotton The American Pima extra-long staple cotton and long staple Indian cotton shown in Table 1 were blended in a mass ratio of 1:1. (2) Spun yarn with uniform warp and weft thickness The ring spinning device shown in Figure 2 was used to produce the spun yarn, and single yarn with a cotton count of 20 was used. (3) Spun yarn with uneven weft yarn Using the ring spinning apparatus shown in Figure 2, the speed of the back roller of the drafting device was varied between 10 rpm and 50 rpm, and the speed of the middle roller was set to 1.5 to 2 times the speed of the back roller, and the speed of the front roller was set to 20 times the speed of the back roller. By varying the speed of each roller in this way, uneven portions (thick and thin fineness portions) were created in the yarn. The draft ratio was 1:2:50, with the back roller, middle roller, and front roller being used in this order. In this way, a spun yarn with a cotton count of 10 was obtained, and single yarn was used. Figure 8 is a planar photograph (magnification 2.5x) of the thick portion of this spun yarn, and Figure 9 is a planar photograph (magnification 2.5x) of the thin portion. (4) Textiles Warp: Cotton count 20, single yarn (twist coefficient K=4.0, twist number 18 times / inch) Spun yarn of uniform thickness for weft: cotton count 20, single yarn (twist coefficient K=3.4, twist number 15 times / inch) Spun yarn with uneven weft thickness: Cotton count 10, single yarn (twist coefficient K=3.2, twist number 10 / inch) Using the above spun yarns, a weft diagonal weave fabric shown in Figure 3 was produced on a dobby loom. The warp density was 47 threads / inch and the weft density was 30 threads / inch. The warp cover factor was 766 (47 × √265), and the weft cover factor was 566 (307 × √265). The resulting fabric was 78 cm long (warp direction), 38 cm long (weft direction), weighed 49 g, and had a basis weight of 165.6 g / m 2 A planar photograph of this fabric is shown in Figure 4, and a cross-sectional photograph (magnification 20x) is shown in Figure 5. Measurement of the cross-sectional photograph in Figure 5 revealed that the thickness of the thicker parts was 1.26 to 1.31 mm, and the thickness of the thinner parts was 0.74 to 0.84 mm. As is clear from Figures 4 to 5, a firm unevenness was formed.

[0030] (Comparative Example 1) Open-end spun yarn, warp thread 100% cotton 20 count single yarn, weft thread 100% cotton 20 count single yarn, warp pile thread 100% cotton 20 count single yarn, and pile towel (183.8g / m2) 2 The warp density was 28 ends / inch and the weft density was 28 ends / inch. The warp cover factor was 456 (28 × √265) and the weft cover factor was 456 (28 × √265). The resulting fabric was 80 cm long (warp direction), 34 cm long (weft direction), weighed 50 g, and had a basis weight of 183.8 g / m 2 A cross-sectional photograph (magnification 20 times) of this fabric is shown in FIG. 6, and the thickness of the thicker portions was 1.04 to 1.96 mm, and the thickness of the thinner portions was 0.86 to 0.93 mm.

[0031] (Comparative Example 2) A gauze towel was made using ring-spun yarn, 100% cotton warp yarn (40 count single yarn), and 100% cotton weft yarn (40 count single yarn). The warp cover factor was 554 (48 × √133), and the weft cover factor was 577 (50 × √133). The resulting fabric was 88 cm long (warp direction), 34 cm long (weft direction), weighed 34 g, and had a basis weight of 113.6 g / m 2A cross-sectional photograph (magnification 20 times) of the obtained gauze towel is shown in FIG. 7, and the thickness was 0.49 mm. The gauze towel had a uniform thickness. The results are shown in Table 2.

[0032] [Table 2]

[0033] As is clear from Table 2, the following effects were confirmed for the woven fabric of Example 1. (1) The cover factor of the warp was 1.35 times higher than that of the weft, so there was no transparency and the appearance was good. (2) The woven fabric of Example 1 had a higher bulk and a softer feel than the fabric of Comparative Example 2. The fabric of Comparative Example 1 had a higher bulk due to the use of pile yarn. (3) The average coefficient of dynamic friction of the woven fabric of Example 1 when wet is low, which indicates that the fabric does not stick to the skin when wet and is easy to remove from the skin, providing a good wiping feel. (4) The standard deviation between dry and wet conditions for the woven fabric of Example 1 was lower than those for Comparative Examples 1 and 2. This indicates that the fabric felt less rough and was comfortable to wipe. (5) The woven fabric of Example 1 had good drainage and residual moisture content after washing. The better the drainage, the faster the subsequent drying speed, which is advantageous. (6) The wet-back rate of the woven fabric of Example 1 was almost the same as that of Comparative Example 1 (pile fabric), and the water absorbency was good. (7) The thickness of the woven fabric of Example 1 was comparable to that of the pile towel of Comparative Example 1. Furthermore, the absence of pile resulted in less shedding and less residual moisture immediately after washing.

[0034] Example 2 A plain weave fabric was produced instead of the diagonal weave fabric of Example 1. When this fabric was used as a face towel, it was confirmed to be dense, thin, soft to the touch, and a towel fabric with good water wiping properties.

[0035] Example 3 When a shirt was sewn using the woven fabric obtained in Example 1 and worn, it was confirmed that the shirt was dense, thin, soft to the touch, had good sweat absorption, and was comfortable to wear.

[0036] Example 4 When pajamas were sewn using the woven fabric obtained in Example 1 and worn, it was confirmed that the pajamas were dense, thin, soft to the touch, had good sweat absorption, and were comfortable to wear.

[0037] Example 5 The woven fabric obtained in Example 1 was used to sew a bedding sheet, which was then placed over a mattress pad. The sheet was found to be dense, thin, soft to the touch, and had good sweat absorption, making it comfortable to sleep on. [Industrial Applicability]

[0038] The woven fabric of the present invention has a high density and a soft texture, making it suitable for bath towels (after-bath towels), bath towels, face towels, hand towels, towel handkerchiefs (handkerchiefs), hand towels, washcloths, hand towels, bath mats, sports towels, beach towels (body towels), etc. Furthermore, because it has a high density, a soft texture, is thin, and does not stick to the skin even when wet, it is suitable for clothing such as innerwear (shirts, pants, etc.), T-shirts, jackets, outerwear, pajamas, socks, bedding such as sheets, futon covers, and pillowcases, tablecloths, dishcloths, etc. [Explanation of symbols]

[0039] 1. Spun yarn with varying thickness 2 Thick fiber part 3 Thinner fibers 10 Ring spinning device 11 roving bobbins 12 Coarse thread 13 Trumpet Guide 14 Back roller 15 Draft device 16 Apron 17 Front roller 18 Fleece 19 Spun Yarn 20 Snell Wire 21 Spindle 22 Bobbin

Claims

1. It is a woven fabric made only with warp and weft threads without using pile yarns, The warp yarn is a spun yarn of uniform thickness, The weft yarn is a spun yarn having a uniform thickness and a spun yarn having uneven thickness, The spun yarn having uneven thickness of the weft has a larger fineness than the spun yarn having uniform thickness of the warp and weft, The woven fabric is characterized in that the surface of the woven fabric is formed with irregularities.

2. 2. The woven fabric according to claim 1, wherein the warp and weft yarns each contain at least one cotton fiber selected from the group consisting of long fibers and extra-long fibers, at least 50% by mass of each.

3. 3. The woven fabric according to claim 1, wherein the uniform thickness spun yarns and the uneven thickness spun yarns of the warp and weft are each single yarns.

4. 3. The woven fabric according to claim 1, wherein the warp and weft yarns of uniform thickness and the spun yarns of uneven thickness have a twist coefficient K of 0.5 to 5.

0. The twist factor (K) is calculated using the following formula (1). [Equation 1]

5. 3. The woven fabric according to claim 1, wherein the spun yarn having uneven weft thickness has an average fineness that is 1.2 to 4.0 times thicker than the spun yarn having uniform weft thickness.

6. 3. The woven fabric according to claim 1, wherein the cover factor of the warp yarns is 1.1 times or more higher than the cover factor of the weft yarns. The cover factor is calculated using the following formula (2). [Equation 2]

7. 3. The woven fabric according to claim 1, wherein the warp density of the woven fabric is 25 to 55 ends per inch and the weft density is 20 to 50 ends per inch.

8. 3. The woven fabric according to claim 1, wherein the thickness-uneven spun yarn has a fineness of 1.05 or more in the thicker portions compared to the thinner portions.

9. The mass per unit area of the woven fabric (basis weight) is 100 to 370 g / m 2 The woven fabric according to claim 1 or 2.

10. 3. The woven fabric according to claim 1, wherein the woven fabric is a towel fabric.

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