JP7141781B1 - Towel cloth and its manufacturing method - Google Patents

Abstract

[PROBLEMS] To provide a towel fabric having a soft and puffy texture, excellent quick-drying property, excellent fluff-shedding property, little change in texture after washing, and water absorbability, and to provide a method for producing the same. A towel cloth 1 of the present invention has vertical pile yarns 2a, 2b anchored to base yarns 3, 4a, 4b, and at least the vertical pile yarns 2a, 2b have a single fiber fineness of 0.5 to 10.0 decitex. It consists of polyester multifilament false-twisted yarn and spun twisted yarn with cotton fiber. The multifilament false-twisted yarn preferably has a crimp development rate of 8% to 50% in terms of hot water shrinkage (boiling water shrinkage) measured by the JIS L1095 2010 9.24.3C method. [Selection drawing] Fig. 1

Description

TECHNICAL FIELD The present invention relates to a towel fabric which has a soft and puffy texture, is quick-drying after washing, is excellent in fluff removal, does not easily change in texture after washing, and also has water absorbency, and a method for producing the same.

In recent years, consumers have been demanding more and more diversified textures and higher functionality of towels. Especially when washing, the cotton fiber that makes up the towel absorbs water to the center of the fiber, so while it has good water absorption, it does not drain well, so it dries slowly. There is a large electrical energy loss in Also, when washing, it is often mixed with other laundry in addition to the towel, and at that time, the white fluff of the towel may adhere to the other laundry. I often experience discomfort when it sticks to my skin. Furthermore, towels have a soft and fluffy texture when first worn, but as they are washed repeatedly, they become harder and harder and lose their initial texture.
Regarding this problem, there is a method of blending hydrophobic material synthetic fibers with cotton, for example, a method of blending polyester staple fibers with cotton. It is the actual situation that fluff falling off and pilling (pilling) occur, and the above-mentioned depilation property and the like cannot be fundamentally solved. In addition, the inventors of the present invention have found a certain effect on changes in texture and fluff removal during washing (Reference 1). However, the core yarn of the pile yarn is a stretched polyester multifilament yarn (raw yarn), and although it has resilience, it lacks softness and bulging feeling, and there is room for improving the texture. In addition, as a pile yarn that uses false twisted yarn, there is a double-sided pile knitted fabric in which regenerated fibers such as rayon are falsely twisted (Patent Document 2). However, it is poor in crimp development and crimp durability of the pile, and has some drawbacks. Furthermore, there is a pile fabric of gauze in which false-twisted yarn of synthetic fiber is used as a connecting yarn for two fabrics (Patent Document 3), but it is difficult to apply it to towel cloth. In addition, there is a proposal for a towel-like double-sided pile knitted fabric of crimped yarn of a core yarn in which the core is a synthetic fiber and the sheath is a hydrophilic fiber (Patent Document 4). It is difficult to greatly change the texture. Furthermore, there is a towel fabric that has a pile of towels made of ultra-fine synthetic fibers mainly composed of polyester (Patent Document 5), but it is difficult to develop a soft and puffy texture.

Japanese Patent Application Laid-Open No. 2021-50462 Japanese Utility Model Laid-Open No. 2-136085 JP-A-1-162841 Japanese Utility Model Laid-Open No. 2-149781 JP-A-3-27149

As described above, the above-mentioned prior art provides a towel fabric that has a soft and puffy texture on the surface, dries quickly after washing, is excellent in fluff removal, has little change in texture after washing, and has water absorbency. was difficult.

As a result of intensive studies to maximize the characteristics of the terry cloth of the present invention, the terry cloth has a soft and puffy texture, dries quickly after washing, is excellent in fluff removal, has little change in texture after washing, and also has water absorbency. To provide a towel cloth and a method for manufacturing the same.

The present invention relates to a towel fabric in which warp pile yarns are anchored to base yarns, wherein at least the warp pile yarns have a monofilament fineness of 0.5 to 10.0 decitex, polyester multifilament false twist yarns, and cotton fibers. It is a towel fabric composed of spun and twisted yarns.

The towel fabric manufacturing method of the present invention is the towel fabric manufacturing method described above, wherein the warp pile yarn is a polyester multifilament false twist yarn having a single fiber fineness of 0.5 to 10.0 decitex arranged in the core, It is a spun mixed twisted yarn in which cotton fibers are arranged in the sheath, and the warp pile yarn, the warp ground yarn, and the weft ground yarn are used with a polyester blend ratio of 3 to 60% by mass and a cotton fiber blend ratio of 97 to 40% by mass. In the scouring step, the greige fabric is treated with hot water at the same time as scouring so that the false twisted yarn of the core component develops crimp and expands the yarn.

The towel of the present invention is a polyester multifilament false-twisted yarn in which the warp pile yarn is held by the base yarn and at least the warp pile yarn has a single fiber fineness of 0.5 to 10.0 decitex, and a spun and twisted yarn with cotton fibers. By being a towel fabric composed of, it is possible to provide a towel fabric that has a soft and puffy texture, is quick-drying after washing, is excellent in fluff removal, has little change in texture after washing, and has water absorption. . Moreover, the manufacturing method of the present invention can efficiently and rationally manufacture the towel.

FIG. 1 is a schematic illustration of towel cloth in one embodiment of the present invention. FIG. 2 is a weave texture diagram of the fiber towel cloth. It is a schematic front view. FIG. 3 is a schematic perspective view showing a method for producing a spun union yarn according to one embodiment of the present invention. FIG. 4A is a photograph of the spun mated twisted yarn of Example 1 of the present invention before hot water treatment (magnification of 30 times), and FIG. 4B is a photograph of the yarn after hot water treatment (magnification of 30 times). FIG. 5A is a photograph of the ring spun yarn of 100% cotton fiber of Comparative Example 1 before hot water treatment (30x magnification), and FIG. 5B is a photograph of the yarn after hot water treatment (30x magnification). . FIG. 6A is a photograph (magnification of 100 times) of the pile yarn of the finished fabric of Example 1 of the present invention, and FIG. 6B is the same photograph (magnification of 20 times). FIG. 7A is a photograph of the 100% cotton ring-spun yarn of Comparative Example 1 (magnification: 100 times), and FIG. 7B is the same photograph (magnification: 20 times). FIG. 8A is a photograph of the thread of Reference Example 1 (magnification: 100 times), and FIG. 8B is the same photograph (magnification: 20 times).

The present invention is based on the fact that vertical pile yarn (hereinafter also referred to as pile yarn), which accounts for about 70% of the constituent yarns of the towel fabric, is an important yarn that affects the texture of the towel fabric and its functionality such as quick drying and fluff removal. As a result of paying attention and proceeding with the study, the following findings were obtained. That is, by using polyester false-twisted yarn as the core component of the spun twisted yarn in contrast to the conventional 100% cotton pile yarn, large crimps can be developed and the yarn can be expanded. It has been found that this has the following advantages.
(1) A pile yarn having a soft and puffy texture can be obtained. In addition, since the texture is soft, it can come into contact with the skin softly, so that sweat and moisture can be efficiently wiped off (development of texture effect and wiping effect).
(2) By expanding the polyester, which is the core component of the pile yarn, the cotton fiber that is the sheath component is split, making it easier to absorb moisture. , the drying speed is significantly increased (water absorption/quick drying effect).
(3) Furthermore, since the crimp of the crimped yarn with the expanded core strongly entangles with the cotton, fluff removal of the cotton can be improved (improvement effect of fluff removal).
(4) In addition, since polyester filaments are mixed in, there is no deterioration due to moisture, and since the yarn has elasticity and stiffness, the texture does not change much due to washing, and the original soft and puffy texture is maintained. is maintained (texture durability effect after washing).

The polyester multifilament yarn of the present invention is preferably polyethylene terephthalate (PET), which is usually widely used, and can be preferably used because the yarn has high rigidity and high crimp development, and there are many finenesses and yarn types. In addition, polytrimethylene terephthalate (3GT) with a soft texture, polybutylene terephthalate (4GT) with excellent dyeability, cationic dyeable polyester, normal pressure dyeable polyester, etc. are dyed in the same color as cotton, or dyed in a different color. can be used because

The polyester multifilament yarn of the present invention is a false-twisted yarn having a monofilament fineness of 0.5 to 10.0 decitex. From the standpoint of crimp development and soft touch, those of 1.0 to 6.0 decitex are preferred. If it is less than 0.5 decitex, the crimp development is weak and the feel is too soft, and if it exceeds 10.0 decitex, the feel is too hard and neither is preferable. The single fiber fineness is the fineness (unit: decitex) of one spinneret (1 hole, 1 filament). = and 2.3 decitex.

For the multifilament false-twisted yarn, the hot water shrinkage ratio = boiling water shrinkage ratio of the yarn according to the JIS L1095 2010 9.24.3C method is defined as the crimp expression ratio, and the crimp expression ratio of the false twist yarn of the present invention is 8%. ~50% is preferred. A ratio of 10 to 40% is particularly preferable because the surface of the dough is uniform and the swelling is increased. If the content is less than 8%, the crimp is small and swelling is difficult to develop. On the other hand, if it exceeds 50%, the crimp of the towel fabric is too large, and the surface becomes bumpy and non-uniform.

The false twisting method of the present invention is not particularly limited as long as the false twist yarn has a crimp expression rate of 8% to 50%. As an example, a so-called two-stage false twisting method, in which the polymer is spun at a high speed of about 3000 m / min, half-drawn to about 1.5 times, and false twisted while further drawing about 1.5 times, is reasonable. The method. By this method, a crimp expression rate of about 8 to 30% can be obtained. Furthermore, a three-step false twisting method is preferable as a false twisting method for further increasing the crimp development rate to 20% to 50%. It spins the molten polymer at a low speed of the order of 1300-1500 m/min to produce an undrawn yarn. Then, it is drawn 2.8 to 3.2 times to make drawn yarn (raw yarn). Next, the drawn yarn is false twisted by a pin type, belt nip type, friction type, or other false twisting machine. Since the drawn yarn has high crystallinity and high rigidity, it can exhibit great crimpability. In particular, pin-type false twisting is a preferable method because the drawn yarn is processed by rotating a heated pin, so that crimps can be properly formed and a large crimp property with strong torque can be obtained. The false twisting conditions for the two-step false twisting method and the three-step false twisting method are the false twisting temperature (170-190°C), the number of false twists (2000-2500 times/m), and the overfeed rate (5-10%). etc., and the crimp expression rate can be appropriately controlled under these conditions.

In the present invention, the multifilament false-twisted yarn having a crimping performance of 8% to 40% is arranged as a core component and cotton fibers are arranged as a sheath component to form a spun plied yarn that is composited in a core-sheath shape. Specifically, in the cotton ring spinning process, the false twisted yarn is placed in the center, covered with a cotton sliver so as to wrap the core component, and softly twisted to form a core-sheath-shaped spun mixed twisted yarn ( core yarn) to obtain a single yarn. The soft twist referred to here is different from the number of additional twists described below, and the number of twists is very small. A spun fused yarn is also called a long and short composite spun yarn. Spun twisted yarn is obtained by ring spinning as a preferred example. Multifilament false twist yarn is supplied to the upstream side of the front roller in the final process of the draft zone of the fleece (roving yarn, short fiber bundle) of the ring spinning machine, and the two are combined or arranged in parallel and passed through the front roller. Afterwards, it is made into a spun mixed twisted yarn by applying a real twist. A preferred twist factor for obtaining a spun mated yarn by ring spinning is 8,000 to 13,000. To give an example of the number of twists (number of twists per 1 m) of spun and twisted yarn, 573 to 931 times/m for No. 30 single yarn (converted to filament: total fineness 195 decitex) for thin fabric, and No. 16 single yarn for medium-weight fabric ( It is preferable to twist 418 to 680 turns/m for a filament conversion: total fineness of 365 decitex, and 330 to 537 twists/m for a thick No. 10 single yarn (filament conversion: total fineness of 585 decitex).

The spun and twisted yarn may be used as a single yarn, two-ply yarn, or three or more twisted yarns. When making a two-ply yarn, two single yarns may be aligned, or, for example, a single yarn of a finely spun mixed twisted yarn is twisted with a single yarn of a conventional ring-spun yarn or a bundled spun yarn to make a two-ply yarn. Any method may be used, and the method is appropriately selected according to the purpose such as the texture and appearance of the terry cloth. In addition to the spun twisted yarn by ring spinning, there is also a method of making a twisted yarn by a binding spinning method. Twisted yarn produced by the binding spinning method has a harder texture than ring-spun yarn, but the fluff on the surface is suppressed and the fiber density on the surface of the cotton fiber is high, so moisture moves from the surface to the center. becomes large, and the structure has a large water holding capacity throughout the yarn. Therefore, since the cotton fibers of the pile yarn on the surface of the towel fabric absorb sweat quickly and a lot, it compensates for the lack of water absorbency of the polyester blend of the present invention, and has a superior water absorbency. can do.

また、綿番手とポリエステルマルチフィラメント繊度との換算は次式により算出したものである。
Ｎ＝５３１５／ＤＴ又はＤＴ＝５３１５／Ｎ
(但し、Ｎ:綿の単糸番手、ＤＴ:精紡交撚糸の総繊度(デシテックス)、５３１５:換算定数) Next, the spun mated yarn (single yarn) is twisted (secondary twisted) with a twisting machine such as a down twister so that the twist coefficient (K) is in the range of 6000 to 17000. This twist range is preferable because it gives a pile yarn that has less fluff, is soft and puffy, and is excellent in wash-drying properties and fluff removal properties. In particular, those of 8000 to 13000 are preferable because they have a good balance between the texture and the functionality. If the twist coefficient (K) is less than 6,000, the fabric will have a lot of fuzz and the yarn will not be tight, so it will have a loose texture, which is not preferable. On the other hand, if the yarn has a twist of more than 17,000, it becomes a high twist region, the yarn loses swelling, the texture becomes hard, and the quick-drying property deteriorates, which is not preferable. From the point of view of yarn uniformity, the additional twisting direction is preferably the same as the false twisting direction and the soft twisting direction during spinning and cross-twisting.
The twist coefficient (K) is calculated by the following equation (Equation 1).

Further, the conversion between the cotton count and the polyester multifilament fineness is calculated by the following formula.
N=5315/DT or DT=5315/N
(However, N: single yarn count of cotton, DT: total fineness (decitex) of spun mixed twisted yarn, 5315: conversion constant)

Next, the additionally twisted spun matted yarn is used as a pile yarn. In this case, when the pile yarn is 100% by mass, the mixture ratio of the false twisted multifilament yarn is the swelling texture and quick drying property. And the range of 60 to 10% by mass is preferable from the water absorption of the cotton side. In particular, 50 to 20% by mass is preferable because of good balance of such properties. The blending ratio of the pile yarn can be controlled by adjusting the blending ratio of the filament yarn (large to small in total fineness) to be combined with the spun and twisted yarn and the cotton fiber. For example, in the case of No. 16 spun mated twisted yarn (converted filament: 365 decitex), when the filament false twist yarn: total fineness of 170 decitex is mixed, the mixing ratio is 170/365 × 100 = 46.6% by mass (cotton mixing ratio: 53.4% by mass). Similarly, when a total fineness of 84 decitex is mixed, a filament false-twisted yarn with a mixture ratio of 23.0% is obtained (cotton mixture ratio: 77.9% by mass). The yarn count of the pile yarn of such spun and mixed twisted yarn is not particularly limited, but thin yarns of 100 to 40 counts are used for thin fabrics, thick yarns of 30 to 16 counts are used for medium-weight fabrics, and thick yarns of 12 to 8 counts are used for thick fabrics. can be preferably applied.

Next, in the present invention, when the towel fabric is taken as 100% by mass, the mixed ratio of the multifilament false twist yarn is in the range of 50 to 5% by mass, and the mixed ratio of the cotton fiber is in the range of 50 to 95% by mass. This range is preferable because it satisfies the swelling texture of the fabric, quick-drying property, water absorbency of the cotton side, and the like. In particular, the mixing ratio of the multifilament false-twisted yarn is preferably 40 to 15% by mass (the mixing ratio of cotton: 60 to 85% by mass) in view of the balance between quick-drying property and water absorption. If the mixed ratio of false-twisted multifilament yarns in the fabric exceeds 50% by mass, the water absorbency will be poor, and if the mixed ratio is less than 5% by mass, quick drying will be delayed, and neither is preferable. The control of the mixing ratio of the fabric is based on the premise that the spun mixed twisted yarn is used for the pile yarn, and the warp yarn, It is possible to set the mixing ratio of the entire towel fabric by using the weft ground yarn.

For example, the above-mentioned pile yarn No. 16 spun mixed twisted yarn with a filament false twisted yarn mixture ratio of 46.6% by mass (cotton mixture ratio: 53.4% by mass) and warp and weft base yarns are all 100% cotton. Calculating the blend ratio of the fabric when using No. 16 of %, the pile yarn ratio is 70% and the ground yarn ratio is 30%, and the polyester blend ratio is 46.6% by mass × 0.7 = 32.6% by mass. (mixing ratio of cotton: 67.4% by mass). In addition, when using 100% cotton for the warp yarn of the same pile yarn and the above-mentioned spun and twisted yarn for the weft yarn, the fabric blend ratio of the filament is 46.6% by mass × 0.7 + 46.6% by mass × 0.15. % by mass = 39.6% by mass of polyester mixture (mixture of cotton: 60.4% by mass).

In addition, when weaving into a fabric with such a mixing ratio, there are face towels, bath towels, handkerchief towels, bath mats, etc., so it is necessary to adjust the fabric according to the required properties such as quick drying, fluff removal, and water absorption. The blending ratio, type of yarn, yarn usage, weight per unit (basis weight), etc., are set as appropriate. The basis weight can be controlled by changing the pile length (long to short) of the pile yarn to control the basis weight (large to small). Here, to give examples of preferred basis weights that can exhibit the effects of the present invention, light weights have a basis weight of 100 to 250 g/m ² , medium weights have a basis weight of 250 to 500 g/m ² , and heavy weights have a basis weight of 500 g/m 2 . ~1000 g/ ^m2 are preferred. A thickness of less than 100 g/m ² is thin and bulky, and a thickness of more than 1000 g/m ² is too thick and heavy.

In the present invention, the cotton fiber in the spun and twisted yarn is the best in terms of texture, water absorption, moisture absorption, and handleability as a towel, but a small amount of hemp, rayon, cupra, and wool is blended with cotton. I don't mind. A blend of rayon and cupra provides hygroscopicity, while wool retains heat.

Next, the woven raw fabric is desized with a liquid jet dyeing machine according to the cotton processing process, and then under the usual cotton scouring conditions (constant temperature of 95 to 98 ° C, keeping time of 50 minutes, dilute caustic soda solution , an alcohol ethoxylate-added bath), simultaneously with scouring, the crimp of the polyester false twisted yarn, which is the core component of the pile yarn, can be developed. The conditions necessary for crimp development in the scouring of the present invention are that the hot water temperature is 95° C. to 100° C., and the keeping time at this temperature is 10 minutes or more, so there is no problem within the range of normal scouring conditions. , can be processed. A temperature of less than 95° C. and a keeping time of less than 10 minutes are avoided, since crimp development becomes small and unstable. Further, scouring agents such as dilute caustic soda do not affect crimp development. In addition, when processing a variety with a low scouring temperature of less than 95 ° C., it is preferable to perform a hot water treatment at 95 ° C. to 100 ° C. under this condition before scouring to develop crimps before scouring. .

After scouring, it is then bleached under conventional conditions (98° C., 50 minutes, hydrogen peroxide solution). It is then dehydrated and set in a tenter to finish (off-white finish). This bleaching step also undergoes a hot water treatment, but since the false twisted yarn has already developed crimps in the scouring, it is finished as it is.

Next, when dyeing is performed after scouring and bleaching, the polyester side is dyed with a disperse dye (130° C., 40 minutes), and the cotton side is dyed with a reactive dye (60-80° C., 40 minutes). In addition to this two-bath plain dyeing, there are other methods such as one-piece dyeing, in which only the cotton side is dyed without dyeing the polyester, and the use of disperse dyes and reactive dyes to dye different colors and chambray (light and shade). can be done. Further, vivid dyeing is possible when cationic dyeable polyester is used. Furthermore, it is also possible to print on scoured and bleached off-white fabrics. In the case of yarn dyeing, yarns are scoured and crimped simultaneously, bleached, dyed, and woven to obtain a yarn-dyed towel fabric. In this way, the present invention can be commercialized with excellent color and design in various dyeings.

The towels of the present invention include bath towels (after bath towels), bath towels, face towels, towel handkerchiefs (towel squares), wet towels, wash towels, hand towels, bath mats, sports towels, beach towels (body towels), and the like. The towel can be applied regardless of whether it is woven or knitted. An example of a woven bath towel (after bath towel) will be described below.

Description will be made below with reference to the drawings. In the following drawings, the same symbols indicate the same items.
FIG. 1 is a schematic illustration of a towel cloth 1 according to one embodiment of the present invention. The towel fabric 1 is composed of warp pile yarns 2a and 2b, weft yarns 3, and warp yarns 4a and 4b, and the warp pile yarns 2a and 2b are composed of weft yarns 3 and warp yarns 4a and 4b. It forms a loop pile while being fixed to the ground structure. The obtained towel cloth 1 is cut into a predetermined size, and the edges are treated to form a towel.
FIG. 2 is a weave structure diagram of the towel fabric according to one embodiment of the present invention. This fabric weave is a three weft towel weave (three-pick terry motion weave). The vertical pile yarn is crossed once every three weft ground yarns. The warp ground yarn G and the warp pile yarn P are arranged alternately. 1 to 3 of the weft indicates the order. In FIG. 2, black and x indicate floating threads, and white indicate sinking threads.

FIG. 3 is a schematic perspective view showing a method for producing a spun union yarn according to one embodiment of the present invention. A roving yarn 11 is supplied to a ring spinning machine 10 and drafted by a back roller 12 , an apron 13 and a front roller 14 in a draft zone to form a fleece-like fiber bundle 15 . On the other hand, the polyester multifilament false twist yarn 16 passes through guides 17a and 17b, is supplied to the upstream side of the front roller 14, is united with the fleece-like fiber bundle 15 or is arranged in parallel, and is subjected to real twisting after passing through the front roller. A cross-twisted yarn 18 is formed by intertwining. After that, the snell wire 19 and the ring traveler 20 are passed through and wound around a wood pipe 21.例文帳に追加22 is a spun mated yarn.

A more specific description will be given below using examples. The invention is not limited to the following examples.
<Measurement of yarn shrinkage and thickness>
• Hot water shrinkage (boiling water treatment) of polyester multifilament false twisted yarn = measurement of crimp development rate The hot water shrinkage (boiling water shrinkage) of the yarn was measured according to JIS L1095 2010 9.24.3C method. The outline of the test is that the yarn is subjected to a prescribed initial load, marked at 500 mm, treated with boiling water for 10 minutes, then dewatered with filter paper and air-dried. After air-drying, the yarn was subjected to a specified initial load and the length marked on the yarn was measured. The number of tests is 10, and the average value is shown.
In the present invention, this hot water shrinkage rate is defined as the crimp occurrence rate, and the range of 8% to 50% is applied to the core yarn or the warp and weft base yarns of the spun mated twisted yarn of the present invention.
Hot water shrinkage rate (%) = (Yarn length before hot water treatment (L ₀ )) - (Yarn length after hot water treatment (L ₁ )) / (Yarn length before hot water treatment (L ₀ )) × 100
<Measurement of the thickness (diameter) of the spun mixed twisted yarn and pile yarn>
The thickness of the spun mated yarn of the present invention before and after the hot water treatment (boiling water treatment) was photographed with a microscope (manufactured by Keyence Corporation) at a magnification of 30 to determine the diameter (mm) of the yarn. Average value of 10 measurement points. The thicker the thread after the treatment than before the treatment, the more swollen it is and the better.
<Photo of the pile portion of the finished towel fabric and measurement of the thickness of the thread cut from this pile>
The pile portion of the finished terry cloth was photographed at 100x in the same manner, and the thread diameter (mm) was measured. Also, the pile portion of this towel cloth was cut off, a photograph was taken at a magnification of 20, and the photograph was magnified at a magnification of 30. In all the average values of 10 measurement points, the thicker the pile yarn, the more swollen it is and the better it is.

<Evaluation of texture of finished towel fabric>
(1) Evaluation of soft texture Softness of texture is expressed by the volume per gram of towel fabric, and is determined by bulk height in the following formula.
The higher the value, the softer the texture, which is good. The thickness was measured according to JIS L-1096 (2010) 8.5 bulkiness test, and the basis weight was measured by accurately weighing 1 m square. Five measurement points were used, and the average value was shown.
Umbrella height (cm ³ /g) = thickness (mm) / basis weight (g/m ² ) x 1000
(2) Evaluation of puffy texture Using a compression measuring instrument: KES-G5 (manufactured by Kato Tech Co., Ltd.), the towel fabric is compressed at a constant speed, and the compression work: WC = (gf.cm ² ) is obtained. rice field. Five measurement points were used, and the average value was shown.
The WC value is the (energy) when the fabric is compressed, and the larger the value, the better the towel is compressed, the larger the swelling, and the higher the fluffy feeling, which is good.
(3) Evaluation of Washing Durability of Texture The towel fabric was washed 20 times in a washing machine according to JIS L-0217 (1995), 103 method. After drying, the work of compression: WC=(gf.cm ² ) was measured, and the average value was shown at 5 measurement points. The smaller the difference between the WC values before and after washing, the less deterioration of the swollen texture due to washing, and the better the durability.
(4) Evaluation of Drainage in Washing A towel cloth having a width of 35 cm was cut into 80 g lengths, weighed to one decimal place, and immersed in water for 20 minutes. After that, the wet towel fabric was picked up, dehydrated by centrifugation for 4 minutes in the dehydration tank of the washing machine, weighed precisely, and the residual moisture content (%) of the towel fabric was determined by the following formula. The smaller the value, the better the drainability. The better the drainability, the faster the subsequent drying rate. The number of measurements was three points, and the average value was shown.
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 )) / (Immersion in water Weight of the dough before doing (W ₀ )) × 100
(5) Evaluation of washing and quick-drying properties The dehydrated and drained towel fabric was hung in an air-conditioned room to dry. The drying conditions were a temperature of 20° C., a humidity of 65%, and an air volume of 12.8 m ³ /min, and the weight of the fabric was measured every 10 minutes during drying. The drying time (minutes) was measured when the residual moisture content of the fabric reached 10% (drying rate was 90%). The number of measurements was three points, and the average value was shown. The shorter the time, the faster the drying and the better.
(6) Evaluation of fluff removal by washing of terry cloth Fuzz removal by washing was measured according to JIS L0217 (1995), 103 method. The fluff removal rate (%) is obtained by the following formula. Five measurements were taken, and the average value was shown.
Fluff drop rate (%) = (weight of fluff dropped after washing (g ₁ )) / (weight of towel before washing (g ₀ )) x 100
(7) Water absorption evaluation (improved Larose method)
Five measurements were made according to the modified Larose method of JIS L 1907 (2010), and the average value was obtained. 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: amount of water absorbed at maximum water absorption rate (ml)
The higher the value, the faster the moisture on the skin and the greater the amount of moisture absorbed, which is preferable.
(8) Water absorption rate (dropping method)
The measurement of the water absorption rate of the terry cloth was evaluated based on the dropping method of JIS L 1907 (2010); The outline of the test was to drop one drop of water onto a towel cloth from a height of 10 cm, measure the water absorption time (seconds) until the specular surface of the drop disappeared three times, and obtain the average value. The shorter the time, the faster the water absorption, which is good.

(Example 1)
(1) Manufacturing method and evaluation method of towel fabric A. False twist yarn of polyester multifilament A half-stretched yarn obtained by stretching polyethylene terephthalate polymer to 1.3 times at 3000 m/min is further stretched to 1.7 times, and at the same time, it is false twisted by a two-step method with friction, resulting in 84 decitex, A polyester multifilament false-twisted yarn having 36 filaments and a single fiber fineness of 2.3 decitex was used. The false twisting temperature is 185° C., the number of false twists is 2360 turns/m, the overfeed ratio is 7.5%, and the false twisting is in the S direction.
The hot water shrinkage rate (boiling water shrinkage rate) of the yarn was measured by the JIS L1095 2010 9.24.3C method, and the hot water shrinkage rate was 23.5%, and it was confirmed that crimps were expressed ( Table 1).
B. Spun Twisted Yarn Next, this polyester multifilament false twisted yarn and cotton fleece (roving yarn, short fiber bundle) are spun and twisted in the S direction by ring spinning, and a core yarn type of polyester with a core of polyester and a sheath of cotton is obtained. No. 16 single yarn (365 decitex in terms of filament) of spun twisted yarn was obtained, and the mixing ratio was 23.0% by mass of polyester and 77.0% by mass of cotton.
Then, the yarn was twisted in the S direction with a twisting factor (K) of 11654 at a number of twists of 610 times/m using a down twister twister (additional twisting).
In addition, as a result of hot water treatment of this spun and twisted yarn, the thickness (diameter) of the yarn was 0.30 mm before hot water treatment and 0.47 mm after treatment. (Fig. 4A-B).
C. Weaving of towel fabric The spun mated and twisted No. 16 single yarn is used for the pile yarn, and 100% cotton No. 16 single yarn is used for the two warp yarns and the weft yarns, and the pile length is 0.88 cm. woven. The basis weight is 275 g/m ² (medium basis weight), and the fabric blend ratio is 23% polyester and 77% cotton. The total blend ratio of the towel cloth was 16% polyester and 84% cotton, and the towel cloth was woven using an air jet loom (see Table 2, manufacturing specifications of towel cloth).
D. Scouring and Finishing of Towel Fabric Next, this greige fabric was desized by a liquid jet dyeing machine in accordance with a conventional method (55° C.×20 minutes, amylase, surfactant addition bath) in accordance with the processing of cotton. Then, in the same machine, hot water treatment was carried out at the same time as scouring in a bath containing dilute caustic soda and alcohol ethoxylate at 98°C for 50 minutes. By this scouring, it was confirmed that crimps were developed.
It was then conventionally bleached in a hydrogen peroxide bath at 98°C and kept for 50 minutes, set in a tenter at 135°C and finished (off-white finish).

(Example 2)
The pile length was 0.76 cm, and the fabric was woven and finished in the same manner as in Example 1, except that the basis weight was 228 g/m ² (small basis weight).

(Comparative example 1)
A 100% cotton ring-spun yarn was woven and finished in the same manner as in Example 1 except that it had a pile length of 0.88 cm and a basis weight of 274 g/m ² (medium basis weight). The thickness of the 100% cotton ring-spun yarn of Comparative Example 1 was 0.33 mm before the hot water treatment and 0.31 mm after the treatment, and no swelling was observed (Figs. 5A and 5B).

(Comparative example 2)
It was woven and finished according to Example 2, except that it was 100% cotton ring-spun yarn, had a pile length of 0.76 cm, and had a basis weight of 226 g/m ² (small basis weight).

(Reference example 1)
The core component of the spun and twisted yarn is 84 decitex, 36 filament polyester drawn yarn (raw yarn), the pile length is 0.88 cm, and the basis weight is 275 g/m ² (medium basis weight), according to Example 1. , woven, finished, and compared with photos of the fabric and the thickness of the cut pile yarn.

E. Evaluation results of the finished terry cloth
(1) Thickness of pile yarn The yarn thickness (diameter) of the spun matted yarn of Example 1 before and after boiling water treatment was 0.30 mm/0.47 mm, and expanded 1.55 times by boiling water treatment. rice field. This thickness was 1.52 times larger than that of Comparative Example 1 (0.31 mmm) (Table 1 and Example 1 are shown in FIGS. 6A-B, and Comparative Example 1 is shown in FIGS. 7A-B).
In addition, the thickness of the cut pile yarn of the towel fabric finished using this for the pile is 0.75 mm, which is 1.83 times the thickness of 0.41 mm in Comparative Example 1, and the thickness of Reference Example 1 (core yarn is raw yarn). It was 1.70 times as large as 0.44 mm, and was extremely thick and swollen.
In Reference Example 1, the crimp expression rate was 5.1%, and almost no crimp was observed (Table 1 and FIGS. 8A and 8B).
(2) Evaluation of towel cloth The evaluation results of the finished towel cloth are shown in Table 3 and evaluated as follows.
(i) Texture and durability of texture after washing Example 1 has a bulk height of 10.18 and a compression work of 2.01 compared to Comparative Example 1 with the same medium basis weight, which is 27 compared to Comparative Example 1. %, and 20%, and the towel fabric had a soft, puffy texture and excellent feel.
Also, the rate of decrease in texture after 20 washes was very small, 5.5%, compared to 15.5% in Comparative Example 1, and the original texture remained as it was, and the durability to washing was excellent.
(ii) Drainage in washing and quick drying In Example 1, the water is drained well (residual moisture content: 63.2%), and the drying time is 199 minutes, which is 1.62 times the 323 minutes of the comparative example. It was fast and had high quick-drying properties.
(iii) Fluff removal property The fluff removal rate in washing was 0.02%, which was extremely small, being 1/5 of the comparative example. In addition, even when mixed with a black sweater and washed, the white fluff of the towel hardly adhered to the sweater, and it was comfortable.
(iv) Water Absorption The water absorption index was in the 400s, which was less than 1 second by the dropping method, and although it was slightly lower than that of Comparative Example 1 by the improved Larose method, it was confirmed that the water absorption level was good. Even after taking a bath, there was no particular problem with water absorption, and since the texture was soft, the sweat wiping property was rather superior to that of Comparative Example 1.
As for Example 2, which has a small basis weight, the texture is softer and more puffy than Comparative Example 2, and the durability of the washing texture, the ability to drain water after washing, the ability to dry quickly, and the ability to remove fluff are all excellent. The water absorption was at a practically acceptable level.
On the other hand, Comparative Examples 1 and 2 had slightly higher water absorbency than Examples 1 and 2, but had a hard texture, especially after washing. In addition, it was a mediocre towel fabric with poor draining properties, slow drying after washing, and fluff falling off.
In both Examples 1 and 2, the towel cloth was manufactured using the conventional 100% cotton weaving process and scouring process, and crimping of the false twist yarn was developed at the same time as the scouring process. Confirmed that it can be done.
The above results are summarized in Tables 1 to 3.

From Tables 1 to 3, the towel fabrics of Examples 1 and 2 have a soft and puffy texture, are quick-drying after washing, are excellent in fluff removal, have little change in texture after washing, and are absorbent towels. I was able to confirm that it was fabric.

(Example 3)
A melted polyester polymer is spun at 1350 m/min to make an undrawn yarn, which is drawn at a rate of 2.8 to 3.2 times to obtain a drawn yarn (raw yarn) was obtained. Then, the drawn yarn was false twisted by a pin-type false twister (three-step false twisting method). In addition, this is used as the core component of the spun matted yarn, and it is used for pile yarn with a pile length of 10.2 mm, and the warp yarn is 100% cotton No. 40 two-ply yarn with a warp yarn density of 64 / 2 inches. , In addition, weaving was performed according to Example 1, except that the weft ground yarn was woven with 100% cotton No. 20 single yarn at a weft yarn density of 50 yarns / inch and the basis weight was 486 g / m (large basis weight). It was scoured (crimping) and bleached to give an off-white finish.
As a result, the crimp occurrence rate of the false twisted yarn was 32.8%, and the cut pile using this pile yarn of the towel fabric was 0.91 mm, which is 1.2 times thicker than that of Example 1. there were. In addition, the texture of the finished fabric is also larger (bulk level: 11.15), quick drying (189 minutes), excellent fluff removal (0.019%), less change in texture after washing, and water absorption ( 1 second or less), it was a particularly characteristic white towel fabric.

(Example 4)
Scouring (crimp development), bleaching and finishing according to Example 1 except that it was single dyed on the cotton side with a gray reactive dye at 80°C for 40 minutes.
This was sewn into a hand towel and a practical test was conducted. As a result, the texture was soft, large, and had a new tactile feel that had never existed before. In addition, it was a very comfortable gray towel that dries quickly by washing at home, does not leave fluff on the skin after taking a bath, and has water absorbency that quickly absorbs sweat.

As described above, the terry cloth of the present invention has a soft and puffy texture that could not be obtained by conventional techniques, dries quickly after washing, is excellent in fluff removal, has a durable texture after washing, and has water absorbency. A terry cloth was obtained.
In addition, in the manufacturing method of the present towel fabric, crimping of the false twist yarn is developed at the same time as scouring in the conventional 100% cotton weaving process and scouring process, so that it was possible to manufacture very efficiently by the same process.

The towel fabric of the present invention is suitable for face towels, bath towels, towel handkerchiefs, sports towels, bathrobes, towel blankets, clothes, socks, rugs, and bedding.

1 Towel fabric 2a, 2b Warp pile yarn 3 Weft base yarn 4a, 4b Warp base yarn 10 Ring spinning machine 11 Roving yarn 12 Back roller 13 Apron 14 Front roller 15 Fleece fiber bundle 16 Polyester multifilament false twist yarn 17a, 17b Guide 18 Interlace Twisted Yarn 19 Snell Wire 20 Ring Traveler 21 Woodwind 22 Spun Twisted Yarn

Claims (8)

A towel fabric in which the vertical pile thread is locked to the ground thread,
A towel fabric comprising at least polyester multifilament false-twisted yarn having a warp pile yarn with a single fiber fineness of 0.5 to 10.0 decitex and spun and twisted yarn of cotton fibers. According to claim 1, wherein the multifilament false-twisted yarn has a crimp development rate of 8% to 50% according to the hot water shrinkage (boiling water shrinkage) measured by the JIS L1095 2010 9.24.3C method. Towel fabric as described. 2. The towel fabric according to claim 1, wherein the multifilament false-twisted yarn is drawn false-twisted yarn obtained by drawing the drawn yarn by a factor of 2.5 or more. 2. The towel fabric according to claim 1, wherein the spun and twisted yarn is a composite yarn in which the multifilament false-twisted yarn is arranged as a core component and the cotton fibers are arranged as a sheath component and are combined in a core-sheath shape. 2. The towel fabric according to claim 1, wherein the spun, combined twisted yarn is additionally twisted, and the twist coefficient (K) of the additional twist is in the range of 6,000 to 17,000.
However, the twist coefficient (K) is calculated by the following formula (Equation 1 ).

The towel fabric according to claim 1 , wherein, when the pile yarn is 100% by mass, the mixed ratio of the multifilament false twisted yarn of the pile yarn is 60 to 10% by mass, and the mixed ratio of the cotton fiber is 40 to 90% by mass. The towel fabric according to claim 1 , wherein the mixed ratio of the multifilament false twisted yarn is 50 to 5% by mass and the mixed ratio of the cotton fiber is 50 to 95% by mass when the towel fabric is 100% by mass. A method for manufacturing the towel cloth according to any one of claims 1 to 7,
Using warp pile yarn, warp ground yarn, and weft ground yarn, weave so that the blend ratio of polyester is 3 to 60% by mass and the blend ratio of cotton fiber is 97 to 40% by mass to make a gray fabric,
A method for producing a towel cloth, characterized in that, in a scouring step, the raw fabric is treated with hot water at the same time as scouring so that the false twist yarn of the core component develops crimp and expands the yarn.

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