Moisture-wicking, quick-drying knit fabric

Abstract

To provide a moisture-absorbing, quick-drying fabric and moisture-absorbing, quick-drying clothing which can simultaneously satisfy the contradictory functions of increasing the water retention of a cellulosic fabric and improving quick-drying properties, and which is comfortable when sweating. [Solution] A moisture-absorbing, quick-drying knitted fabric in which a blended spun yarn (A) containing a hydrophilically modified cellulose fiber (a) and a non-hydrophilically modified cellulose fiber (b) is interwoven with a spun yarn (B) composed of a non-hydrophilically modified cellulose fiber, characterized in that the blended spun yarn (A) and the spun yarn (B) are always arranged adjacent to each other on at least one side of the knitted fabric in the unit knitting structure.

Description

[Technical Field]

[0001] The present invention relates to a moisture-absorbing, quick-drying fabric and moisture-absorbing, quick-drying clothing whose main constituent yarns are cellulosic fibers. [Background technology]

[0002] Cellulosic fibers such as cotton and rayon have traditionally been widely used in innerwear such as underwear, partly because they have a better feel and are more moisture-absorbent and sweat-wicking than synthetic fibers such as polyester.

[0003] High-performance fibers that further enhance the advantages of these cellulosic fibers have been developed. For example, a method has been proposed in which highly hydrophilic monomers are grafted onto cotton to modify it and make it hydrophilic (see Patent Documents 1 and 2). Hydrophilized fibers have the advantage of being highly hydrophilic, resulting in excellent water absorption and sweat absorption, but they have the problem of being difficult to release absorbed water to the outside and being poor at drying quickly. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 6-184941 [Patent Document 2] Patent Publication No. 2021-127545 Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention was devised to solve the problems of the prior art described above, and its purpose is to provide moisture-absorbing, quick-drying fabrics and moisture-absorbing, quick-drying clothing that can simultaneously fulfill the contradictory functions of increasing the water absorbency of cellulosic fabrics and improving their quick-drying properties, thereby providing comfort when sweating. [Means for solving the problem]

[0006] As a result of extensive research into achieving the above object, the inventors have discovered that by appropriately arranging and inter-knitting a blended spun yarn containing hydrophilically modified cellulosic fibers and non-hydrophilically modified cellulosic fibers with a spun yarn made of non-hydrophilically modified cellulosic fibers, it is possible to obtain quick-drying properties in addition to the inherent water absorption properties of cellulosic fabrics, and have thus completed the present invention.

[0007] That is, the present invention provides the following (1) to ( 6 ) is composed of the following components. (1) A knitted fabric obtained by inter-knitting a blended spun yarn (A) containing a hydrophilically modified cellulosic fiber (a) and a non-hydrophilically modified cellulosic fiber (b) with a spun yarn (B) composed of a non-hydrophilically modified cellulosic fiber, The knitted fabric is made of a rib, bare rib, teleco, or one-side bag structure, A moisture-absorbing, quick-drying knitted fabric characterized in that a blended spun yarn (A) and a spun yarn (B) are always arranged adjacent to each other on at least one side of the knitted fabric in each unit knitting structure. (2) The moisture-absorbing and quick-drying knitted fabric according to (1), characterized in that the content of the hydrophilically modified cellulose fiber (a) is 3 to 40 mass % when the knitted fabric is taken as 100 mass %. (3) The moisture-absorbing and quick-drying knitted fabric according to (1), characterized in that the knitted fabric is made of a single layer of knitting structure. ( 4 ) The moisture-absorbing, quick-drying knitted fabric according to (1), characterized in that polyurethane elastic yarn is plated and knitted onto the spun yarn (B). ( 5 )(1)~( 4 2. A moisture-absorbing, quick-drying garment characterized in that the moisture-absorbing, quick-drying knitted fabric according to any one of claims 1 to 10 is used as the body of the garment. ( 6 ) The clothing is an inner garment such as a shirt or pants. 5 ) The moisture-absorbing and quick-drying clothing described in the above. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a moisture-absorbing, quick-drying fabric that is excellent in moisture absorption and can not only absorb sweat well but also quickly release and dry absorbed moisture such as sweat. Due to its excellent properties, the moisture-absorbing, quick-drying fabric of the present invention is extremely suitable for innerwear such as shirts and pants. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 shows the knitting structure (fraising cutter) of Examples 1, 2, 5, and 8 and Comparative Examples 1 and 3. [Figure 2] FIG. 2 shows the knitted structure (one-side bag) of Example 3. [Figure 3] FIG. 3 shows the knitted structure (bare rib) of Example 4. [Figure 4] FIG. 4 shows the knitting structure (teleco) of Example 6. [Figure 5] FIG. 5 shows the knitting structure (plain stitch) of Example 7 and Comparative Example 2. DETAILED DESCRIPTION OF THE INVENTION

[0010] The knitted fabric of the present invention is characterized by comprising a blended spun yarn (A) containing hydrophilically modified cellulosic fiber (a) and non-hydrophilically modified cellulosic fiber (b), and a spun yarn (B) composed of non-hydrophilically modified cellulosic fiber. The knitted fabric of the present invention preferably contains 90% by mass or more of the blended spun yarn (A) and the spun yarn (B) when the knitted fabric is taken as 100% by mass. The content of the hydrophilically modified cellulosic fiber (a) in the knitted fabric of the present invention is preferably 3 to 40% by mass, more preferably 7 to 20% by mass. Meanwhile, the content of the non-hydrophilically modified cellulosic fiber (b) is preferably 60 to 97% by mass, more preferably 80 to 93% by mass. The blend ratio of hydrophilically modified cellulose fiber (a) in the knitted fabric is, for example, such that, of three repeating units, one is a blended spun yarn (A) containing 30% by mass of hydrophilically modified cellulose fiber (a) and the other two are spun yarns (B) made of cellulose fiber that has not been hydrophilically modified, when the knitted fabric is taken as 100% by mass, the knitted fabric contains 10% by mass of hydrophilically modified cellulose fiber (a).

[0011] The knitted fabric of the present invention is essentially composed of cellulosic fibers, but is characterized by the inclusion of hydrophilically modified cellulosic fibers (a) in the cellulosic fibers. This hydrophilic modification is a modification process in which a compound containing an ethylenically unsaturated double bond (a compound having a hydrophilic functional group) is grafted onto the cellulosic fibers. Examples of compounds containing an ethylenically unsaturated double bond include compounds containing one ethylenically unsaturated double bond and one or two hydrophilic functional groups. Examples of hydrophilic functional groups include a carboxyl group, a sulfo group, an amino group, and a thiol group, with a carboxyl group being preferred due to its high hydrophilicity and minimal discoloration. A preferred example of a compound containing a carboxyl group is at least one carboxylic acid selected from the group consisting of acrylic acid, methacrylic acid, itaconic acid, maleic acid, and fumaric acid, or an ester or salt thereof. Chemically bonding these compounds to the surface and interior of cellulosic fibers can impart wash-resistant, water-absorbing, and quick-drying properties.

[0012] The graft bonds are thought to be formed through a variety of reactions, including radical chain initiation reactions, chain transfer reactions, chain termination reactions, etc., such as reactions that generate radicals on the surface and / or inside the cellulosic fiber, reactions that radicalize a compound having an ethylenically unsaturated double bond containing a functional group (such as -COOH, -OH, -NH2), reactions that graft bond the generated radicals to the cellulosic fiber by contacting the compound having an ethylenically unsaturated double bond containing a functional group (such as -COOH, -OH, -NH2), reactions that radically bond the compound bound to cellulose with a new compound having an ethylenically unsaturated double bond, and reactions in which the active group reacts with a carboxylic acid group to form a covalent bond. Methods for generating radicals on the surface of cellulosic fibers include methods using radical initiators such as azo compounds or peroxides, methods using electron beam irradiation, and methods using ultraviolet light, and any of these methods may be used.

[0013] As a specific method for hydrophilizing cellulosic fibers, for example, when the cellulosic fiber is cotton, the hydrophilization can be performed by irradiating raw cotton spinning cotton sliver with an electron beam in a nitrogen atmosphere using an Obermeyer dyeing machine to generate radicals on the surface of the cotton fiber, and then continuously contacting the surface of the cotton fiber with a compound containing an ethylenically unsaturated double bond.

[0014] The hydrophilically modified cellulosic fiber (a) is preferably one to which a compound containing an ethylenically unsaturated double bond has been added in an amount of 1 to 40% by mass, more preferably 5 to 30% by mass, based on the cellulosic fiber. If the amount is within this range, the fiber can exhibit sufficient hydrophilicity even when blended with untreated cellulosic fiber.

[0015] The blending ratio of cellulosic fibers in the blended spun yarn (A) and spun yarn (B) of the present invention is preferably 80 to 100% by mass. It is more preferably 90 to 100% by mass. If the blending ratio is less than this range, the physical properties of the yarn tend to deteriorate, and it becomes difficult to improve quick-drying properties. Furthermore, in blended spun yarn (A) containing hydrophilically modified cellulosic fibers (a) and non-hydrophilically modified cellulosic fibers (b), the hydrophilically modified cellulosic fibers (a) are usually 5 to 50% by mass, and the non-hydrophilically modified cellulosic fibers (b) are 50 to 95% by mass. Preferably, the hydrophilically modified cellulosic fibers (a) are 10 to 40% by mass, and the non-hydrophilically modified cellulosic fibers (b) are 60 to 90% by mass. In addition, it is preferable to use cotton having a fiber length of medium or longer as the cellulose fiber raw material before hydrophilic modification for the non-hydrophilically modified cellulose fiber (b) of the present invention and the hydrophilically modified cellulose fiber (a).

[0016] Methods for blending hydrophilically modified cellulosic fibers (a) with non-hydrophilically modified cellulosic fibers (b) include blending the fibers in a batting process, blending in a carding process, blending in a combing process, blending in a drawing process, blending in a roving process, and blending roving yarns together in a spinning process or blending roving yarns with fined yarns to produce composite yarns such as core yarns. After blending hydrophilically modified cellulosic fibers (a) with non-hydrophilically modified cellulosic fibers (b) in this way, blended spun yarn (A) is produced according to a conventional method. Furthermore, a spun yarn consisting solely of non-hydrophilically modified cellulosic fibers (a) is also produced according to a conventional method to produce a spun yarn (B). The blended spun yarn (A) and spun yarn (B) are then interwoven to produce a moisture-absorbing, quick-drying fabric. This fabric can be bleached, dyed and finished in the usual way, but it is preferable to select fixatives and softeners for use after dyeing that do not inhibit water absorption.

[0017] The knitted fabric of the present invention is also characterized by its knitting structure, in which the blended spun yarn (A) and the spun yarn (B) are always arranged adjacently in the knitted fabric on at least one side of the knitted fabric in the unit knitting structure. "Adjacent," in the example of circular knitting, means that the blended spun yarn and the spun yarn are knitted alternately in adjacent feeders of the knitted structure. Specifically, the knitted structure is constructed in such an order that one blended spun yarn (A) and one spun yarn (B) are knitted alternately (1:1), one blended spun yarn (A) is knitted in followed by two spun yarns (B), or one spun yarn (B) is knitted in followed by two blended spun yarns (A). In this structure, for any blended spun yarn (A), the spun yarn (B) is arranged as at least one of the front and rear yarns in the wale direction, and for any spun yarn (B), the blended spun yarn (A) is arranged as at least one of the front and rear yarns in the wale direction to form a knitted fabric, with the blended spun yarn (A) and the spun yarn (B) arranged adjacent to each other in the knitted fabric. In this case, the hydrophilically modified cellulosic fiber (a) of the blended spun yarn (A) actively attracts water, exerting a priming effect, which then transfers water to the adjacent spun yarn (B), promoting water diffusion on the knitted fabric. As the water is widely diffused in the knitted fabric, the wetted area on the knitted fabric surface increases, expanding the interface surface area between the water and the outside air and accelerating drying.

[0018] The knitted fabric of the present invention may contain an elastic yarn as long as it does not disrupt the structure in which the blended spun yarn (A) and the spun yarn (B) are arranged adjacently in the knitted fabric. Polyurethane elastic yarn is preferred as the elastic yarn, as it can impart stretchability to the knitted fabric even at a low blending ratio and does not inhibit quick-drying properties. The polyurethane elastic yarn is preferably knitted as a plated yarn for the loop yarn or as a blended yarn with the spun yarn (B) beforehand. The polyurethane elastic yarn preferably has a fineness of 20 to 40 dtex. Within this fineness range, the polyurethane elastic yarn is sufficiently finer than the blended spun yarn (A) and the spun yarn (B), so it does not inhibit quick-drying properties. When knitting polyurethane elastic yarn, it is preferably knitted as a plated yarn in a stretched state of 2.5 to 3.0 times. The preferred ratio of the elastic yarn to the total amount of the blended spun yarn (A) and the spun yarn (B) is a maximum of 10% by mass. The polyurethane elastic thread is not particularly limited and may be any type that is made from polymer diol and diisocyanate as starting materials.

[0019] The knitted fabric of the present invention can be weft knitted (including circular knitted), warp knitted (including tricot knitted and raschel knitted), or pile knitted. For weft knitting, single-layer knitted fabrics such as plain jersey knitted (plain knitted), rib knitted (rib knitted), and purl knitted are preferred. Single-layer knitted fabrics can easily improve quick-drying properties. Particularly preferred single-layer knitted fabrics include plain jersey, rib knitted, and teleco knitted fabrics, which are variations of open-needle knitted fabrics, as well as bare jersey knitted fabrics, bare rib knitted fabrics, and bare teleco knitted fabrics, which are fabrics with elastic yarn plated on them. Rib knitted fabrics and teleco knitted fabrics are knitted on a double knitting machine with two needle beds, one cylinder and one dial. However, blended spun yarn (A) and spun yarn (B) are alternately knitted on the same needles using rib gauging, where the cylinder needles and dial needles are not in the same phase. This results in a staggered knitting pattern, resulting in a bellows-like fold. There are no back knit loops behind the front knit loops, and no knit loops on the front side of the back knit loops, so the fabric is considered to be a single-layer knit because it does not have a double-layered structure. To further explain this knitting structure, a rib knit has knit loops alternating on the front and back sides of each wale, and although it appears to have two layers, it is actually a single-layer knit fabric with an accordion-folded structure. When this knitted fabric is stretched in the course direction, the front and back knit loops are aligned in a straight line, making it clear that it is a single-layer knitted fabric. Note that a one-side bag structure is a structure in which plain knitting using only one needle bed is knitted into a rib knit structure, and this is also a type of knit structure in which knit stitches and purl stitches are arranged alternately. In the present invention, it is particularly preferable to use a rib knit, bare rib knit, terry cloth, or one-side bag structure. In these structures, the fine accordion-folded structure of the knitted fabric reduces the contact area between the skin and the knitted fabric surface, and even if sweating exceeds the moisture retention capacity of the knitted fabric, the knitted fabric will not stick to the skin due to sweat, resulting in a sticky feeling.

[0020] The weight per unit area of ​​the knitted fabric of the present invention is 80 to 300 g / m 2 is preferable, and more preferably 90 to 250 g / m 2 and more preferably 100 to 200 g / m 2 If the thickness falls within the above range, it is suitable for use as innerwear.

[0021] In the knitted fabric of the present invention, the effect of improving water absorbency due to the hydrophilically modified cellulose fiber (a) can be evaluated by the Byreck method. The Byreck method measures the height to which water is absorbed from the water surface by capillary action when the fabric is brought into contact with the water surface. The higher this wicking height, the higher the water absorbency is judged to be. The knitted fabric of the present invention can achieve a wicking height of 9.0 mm or more by the Byreck method, and can even achieve a wicking height of 9.5 mm or more.

[0022] The knitted fabric of the present invention has high quick-drying properties because the water contained in the knitted fabric can be widely dispersed over the surface of the knitted fabric. The quick-drying properties of the knitted fabric can be evaluated by measuring the size of the water diffusion area. The knitted fabric of the present invention has a diffusion area of ​​18 cm 2 It is possible to obtain the above diffusion properties.

[0023] The quick-drying properties of the knitted fabric of the present invention can also be evaluated by a diffusible residual moisture regain test. The knitted fabric of the present invention can be dried within 70 minutes, or even within 60 minutes, even if it is a knitted fabric that uses cellulosic fibers and has high water retention.

[0024] The knitted fabric of the present invention has excellent skin-releasing properties. Skin-releasing properties are an index that indicates the degree to which a fabric clings to the skin when wet, i.e., the degree of stickiness. Various methods for measuring cling have been proposed, but in this invention, we adopted the Unitika Garmentech Co., Ltd.'s adhesion measurement. Specifically, using a KES compression property evaluation tester, the negative force generated when the fabric was compressed to a certain load and inverted was measured. If the fabric being measured is dry, no negative force is generated, and the garment does not feel sticky. However, as moisture is added to the fabric, negative force is generated. This negative force is defined as adhesion. A fabric that has low adhesion even when a large amount of moisture is added can be said to have a low stickiness. The knitted fabric of the present invention has the characteristic of being less sticky, with its negative adhesion not increasing even when 0.6 ml or more, further 0.7 ml or more, or even 0.9 ml or more of moisture is added.

[0025] As described above, the knitted fabric of the present invention is excellent not only in texture and water absorbency but also in quick-drying properties, making it extremely suitable for use as innerwear for shirts, pants, and the like. [Example]

[0026] The present invention will be specifically explained by the following examples, but the present invention is not limited to these examples. Modifications in these examples are included in the technical scope of the present invention as long as they do not deviate from the gist of the present invention. The measurement methods for the property values ​​used in the present invention are as follows.

[0027] <Weight increase rate of hydrophilically modified cotton fiber> After conditioning the moisture content under standard conditions, 10.00 g of unprocessed cotton was weighed out and placed in a bag made of polyester taffeta conforming to JIS-L0803, and the weight of the bag was measured using a precision balance under standard conditions. After processing, the cotton was dried completely while still in the bag, then conditioned to standard conditions, and the weight was measured. The weight gain rate was calculated using the following formula. Since the weight gain of the polyester bag was very small, it was assumed that there was no weight change in the calculation. (Increased weight - 10.00g) / 10 x 100 = Weight increase rate

[0028] <Total fineness> The apparent cotton count (English count) was measured according to the method of JIS-L1095-9.4.2.

[0029] <Twist coefficient> The number of twists was measured according to the JIS-L1095-9.15A method, and the twist coefficient (K) was calculated using the following formula. Twist factor (K) = twists per inch (T) / √ count ('s)

[0030] <Count of knitted fabric> Measurement was performed in accordance with the basis weight in the notes of the test method for knitted fabrics in JIS-L1018-6.4.2.

[0031] <Suction height> To evaluate the water absorbency of fabrics, we measured the wicking height according to JIS-L1907(2010)7.1.2 Byreck method. To measure the height to which water is wicked up by capillary action along the knitted yarn, we measured the wicking height (mm) in the cross direction (width direction) for circular knitted fabrics and in the longitudinal direction (length direction) for warp knitted fabrics.

[0032] <Water droplet spreading area> In the same manner as in the diffusible residual moisture content test, 0.6 ml of water was dropped onto the test piece, and then left for 3 minutes. At this point, the area of ​​the fabric that had diffused and changed color was measured. The "major axis" was measured from the longest diameter passing through the drop point of the diffusion area, and the "minor axis" was measured from the shortest diameter using a ruler. The radius a of the major axis and the radius b of the minor axis were then calculated, and the theoretical area of ​​the ellipse (S = abπ) was calculated to obtain the diffusion area (cm 2 ) was decided.

[0033] <Diffusible residual moisture content test> A test piece measuring approximately 10 cm x 10 cm was cut out from the knitted fabric conditioned under standard conditions (20°C x 65% RH), and the mass (W) of the test piece was measured. 0.6 ml of water was dropped onto the test piece under standard conditions, and the mass (W0) was measured. The test piece was measured under standard conditions (20°C, 65% RH) according to JIS-L1930:2014 10.1.1A The samples were hung to dry using the drying method, and the mass (Wt) was measured at specified time intervals to calculate the residual moisture content (%) for each time interval. Measurements were carried out by the Boken Quality Evaluation Institute, a general incorporated foundation. The residual moisture content (%) was calculated from the measured masses using the following formula. Residual moisture percentage (%)={(Wt-W) / (W0-W)}×100 The residual moisture content over time was plotted on a graph, and the time (minutes) at which the residual moisture content reached 10% was determined from the graph.

[0034] <Skin-free> Measurements were performed according to the Unitika Garment Tech Co., Ltd. measurement method. While adding moisture to the fabric sample, it was compressed to a certain load using a Kato Tech KES-G5 (simple compression) and the negative force generated when it was inverted was measured. The fabric to be measured was cut into 5 cm x 5 cm pieces and compressed to a certain load using a compression tester every time 0.1 ml of water was dropped onto the fabric. The amount of water droplet (cc) at which the negative force increased sharply was expressed as adhesion. The larger the amount of water droplet, the less sticky the fabric was judged to be (the better it was to release from the skin). A sudden increase in negative force was defined as when the increase in negative force when 0.1 ml was dropped exceeded 3.5 gf. The test was terminated even if the negative force did not increase sharply, but the fabric became saturated with water droplets and water began to seep out from the periphery of the fabric.

[0035] Next, the manufacturing method of the fibers constituting the knitted fabrics of the Examples and Comparative Examples will be described below. <Production of hydrophilically modified cotton (a)> Apland cotton was scouring and bleached in the usual way using an Obermeyer dyeing machine, and then graft-processed. The processing conditions were as follows: processing was carried out at 80°C for 120 minutes using the following recipe, followed by washing with hot water at 60°C, neutralization with acetic acid (until the washing liquid became neutral), washing with hot water, and washing with water, followed by oiling, and then removed from the dyeing machine. The cotton was then dehydrated and dried to obtain hydrophilically modified cotton (a). The weight gain of this hydrophilically modified cotton was 10%. Formulation: Chelating agent 0.5% owf Methacrylic acid 18.0% owf Soda ash 0.3g / L Ammonium iron sulfate (Mohr's salt) 0.5% owf 35% hydrogen peroxide 4.5% owf

[0036] <Cotton without hydrophilic modification (b)> Untreated Apland cotton was used as cotton (b) that had not been hydrophilically modified.

[0037] <Production of blended spun yarn (A1)> The above-mentioned hydrophilically modified cotton (a) and unmodified cotton (b) were blended in a mass ratio of 30:70 using an OHARA cotton blender, and then carded sliver was spun using an Ishikawa Seisakusho carding machine. The carded sliver was then combed to obtain a 300 grain / 6 yd combed sliver. The combed sliver was doubled and drafted twice in a drawing frame to produce a 300 grain / 6 yd drawn sliver. The sliver was then spun in a roving frame to obtain a 110 grain / 15 yd roving. The resulting roving was then spun in a spinning frame at a draft of 35 times and spun with a 40 / 1 combed yarn at a twist factor of K3.6 to obtain blended spun yarn (A1).

[0038] <Production of blended spun yarn (A2)> The blended spun yarn A2 was obtained by spinning in the same manner as blended spun yarn A1, except that hydrophilically modified cotton (a) and unprocessed Apland cotton (b) were blended in a mass ratio of 10:90 to produce a 40 / 1 combed yarn.

[0039] <Production of blended spun yarn (A3)> A 40 / 1 combed yarn was produced by spinning in the same manner as in blended spun yarn A1, except that 100% by mass of hydrophilically modified cotton (a) was used, to obtain blended spun yarn (A3).

[0040] <Production of spun yarn (B)> Spinning was carried out in the same manner as in blended spun yarn A1, except that 100% by mass of unprocessed Apland cotton (b) was used, to produce a 40 / 1 combed yarn, thereby obtaining spun yarn (B).

[0041] Example 1 The above blended spun yarn (A1) and spun yarn (B) were used to knit a circular knit fabric with a rib structure shown in Structure 1 in Figure 1, with one strand alternately. The knitting machine used was a Fukuhara Seiki rib knitting machine (gauge: 18 threads / inch). The finished greige fabric was soaped and dyed with a reactive dye, then dried and finished in a tenter to obtain a dyed and finished fabric. The blend ratio of hydrophilically modified cotton (a) in the finished rib knit fabric is theoretically 15% by mass.

[0042] Example 2 The blended spun yarn (A2) and the spun yarn (B) were interwoven one by one in the same manner as in Example 1, except that the blended spun yarn (A2) was used instead of the blended spun yarn (A1). The resulting grey fabric was dyed and finished in the same manner as in Example 1 to obtain a fabric. The theoretical blending ratio of hydrophilically modified cotton (a) was 5% by mass.

[0043] Example 3 The blended spun yarn (A1) was knitted alternately as plain stitches on the dial surface only, and the spun yarn (B) was knitted as rib stitches to form a circular knit fabric with a single bag shape as shown in the structure 2 in Figure 2. Dial On the surface, the blended spun yarn (A1) and the spun yarn (B) are interwoven one by one. Dial The number of knit loops of the blended spun yarn (A1) to the total knit loops on the outer surface is 50%, cylinder The number of knit loops of the blended spun yarn (A1) on the outer surface (inner surface) is 0%. The finished grey fabric was dyed and finished in the same manner as in Example 1 to obtain a fabric. The blending ratio of the hydrophilically modified cotton (a) is theoretically 12% by mass. Dial The number of knit loops of the blended spun yarn (A1) in the total knit loops on the inner surface ( cylinder The number of knit loops of the blended spun yarn (A1) in the (face) was 0%.

[0044] Example 4 In Example 1, the knitting machine was changed to a rib knitting machine equipped with a plating device, and a polyurethane elastic yarn was plated onto the spun yarn (B) to knit a bare rib as shown in Structure 3 in Figure 3. The elastic yarn used was Mobilon R manufactured by Nisshinbo Textile, 22 dtex, and was knitted with a 3x draft. The resulting grey fabric was dyed and finished in the same manner as in Example 1. The blend ratio of the elastic yarn in the finished knitted fabric was 4% by mass, and the blend ratio of the hydrophilically modified cotton (a) was approximately 14% by mass.

[0045] Example 5 A circular knitted rib fabric shown in structure 4 in Figure 1 was knitted in the same manner as in Example 1, except that the arrangement was changed so that one blended spun yarn (A1) was knitted in and then two spun yarns B were knitted in. The resulting greige fabric was dyed and finished in the same manner as in Example 1. The blend ratio of hydrophilically modified cotton (a) is theoretically 10% by mass.

[0046] Example 6 The blended spun yarn (A1) and the spun yarn (B) were used to knit a fabric with a terry cloth structure shown in Structure 5 in Figure 4, with one strand alternately. The resulting grey fabric was dyed and finished in the same manner as in Example 1. The blend ratio of hydrophilically modified cotton (a) was theoretically 15% by mass.

[0047] ( Comparative Example 4 ) A circular knit fabric with a jersey weave, shown in Weave 6 in Figure 5, was knitted alternately using blended spun yarn (A1) and spun yarn (B). The knitting machine used was a single knit machine (gauge: 28 threads / inch) manufactured by Fukuhara Seiki. The finished greige fabric was soaped and dyed with a reactive dye, then dried and finished in a tenter to obtain a dyed and finished fabric. The theoretical blend ratio of hydrophilically modified cotton (a) was 15% by mass.

[0048] Example 8 A circular knitted rib fabric shown in structure 7 in Figure 1 was knitted in the same manner as in Example 1, except that the arrangement was changed so that two blended spun yarns (A1) were knitted in followed by one spun yarn B. The resulting greige fabric was dyed and finished in the same manner as in Example 1. The blend ratio of hydrophilically modified cotton (a) is theoretically 20% by mass.

[0049] (Comparative Example 1) A circular knitted fabric with a rib structure of structure 8 in Figure 1 was knitted in the same manner as in Example 1, except that 100% spun yarn (B) was used. The finished greige fabric was dyed and processed in the same manner as in Example 1 to obtain a finished fabric. The blend ratio of hydrophilically modified cotton (a) was 0% by mass.

[0050] (Comparative Example 2) A circular knit fabric with a jersey stitch structure 9 in Figure 5 was knitted in the same manner as in Example 7, except that 100% of the blended spun yarn (A3) was used. The resulting greige fabric was dyed in the same manner as in Example 1 to obtain a finished fabric. The blending ratio of hydrophilically modified cotton (a) was 100% by mass.

[0051] (Comparative Example 3) A circular knitted rib fabric shown in the structure 10 in Figure 1 was knitted in the same manner as in Example 1, except that the arrangement was changed so that one blended spun yarn (A1) was knitted and then four spun yarns (B) were knitted. The resulting greige fabric was dyed and finished in the same manner as in Example 1. The theoretical blending ratio of the hydrophilically modified cellulosic fiber (a) is 6% by mass.

[0052] <Manufacturing of innerwear products> The knitted fabrics of the Examples and Comparative Examples obtained as described above were used to sew short-sleeved cut-and-sew T-shirts. The vertical direction (lengthwise direction) of the knitted fabric was used as the vertical direction of the T-shirt body.

[0053] Example 1 6, 8 and Comparative Examples 1 to 4 The details of the knitted fabric obtained and the evaluation results are shown in Table 1.

[0054] [Table 1]

[0055] As can be seen from Table 1, Examples 1 to 3 satisfy the conditions of the present invention. 6, All of the knitted fabrics in Example 8 achieved good results in terms of the evaluated performance. In contrast, Comparative Example 1, which did not use blended spun yarn A, was poor in all of water absorbency (wicking height), quick-drying properties (water droplet spreading area, diffusible residual moisture content), and skin-releasing properties. Comparative Example 2, which did not use spun yarn B, was excellent in water absorbency (wicking height) and skin-releasing properties, but poor in quick-drying properties (water droplet spreading area, diffusible residual moisture content). Comparative Example 3, in which blended spun yarn A and spun yarn B were not arranged adjacent to each other, was poor in all of water absorbency (wicking height), quick-drying properties (water droplet spreading area, diffusible residual moisture content), and skin-releasing properties. Comparative Example 4, which had a jersey knit structure, was excellent in water absorbency (wicking height) and quick-drying properties (water droplet diffusion area, diffusible residual moisture content), but was poor in skin release properties. [Industrial Applicability]

[0056] The present invention provides a moisture-absorbing, quick-drying fabric that not only has excellent moisture absorption properties and is able to absorb sweat well, but also quickly releases and dries absorbed moisture such as sweat. Therefore, due to its excellent properties, the moisture-absorbing, quick-drying fabric of the present invention is extremely useful for innerwear such as shirts and pants.

Claims

1. A moisture-absorbing, quick-drying knitted fabric is a knitted fabric obtained by inter-knitting a blended spun yarn (A) containing a hydrophilically modified cellulosic fiber (a) and a non-hydrophilically modified cellulosic fiber (b) with a spun yarn (B) composed of a non-hydrophilically modified cellulosic fiber, wherein the knitted fabric has a rib, bare rib, terry cloth, or one-sided bag structure, and the blended spun yarn (A) and the spun yarn (B) are always arranged adjacent to each other on at least one side of the knitted fabric in the unit knit structure.

2. The moisture-absorbing and quick-drying knitted fabric according to claim 1, characterized in that the content of the hydrophilically modified cellulosic fiber (a) is 3 to 40 mass % when the knitted fabric is taken as 100 mass %.

3. 2. The moisture-absorbing and quick-drying knitted fabric according to claim 1, wherein the knitted fabric is made of a single layer of knitting structure.

4. 2. The moisture-absorbing and quick-drying knitted fabric according to claim 1, wherein polyurethane elastic yarn is knitted into the spun yarn (B) by plating.

5. 5. A moisture-absorbing, quick-drying garment comprising a body made of the moisture-absorbing, quick-drying knitted fabric according to any one of claims 1 to 4.

6. 6. The moisture-absorbing and quick-drying garment according to claim 5, wherein the garment is an inner garment such as a shirt or pants.

Images