JP2021130883A - Pile spun yarn and woven or knitted fabric - Google Patents

Abstract

To provide a pile spun yarn, which has an excellent heat insulation, light weight, and compressive elasticity, and a woven and knitted fabric using the same.SOLUTION: A pile spun yarn is made of cotton fibers with English count of 5 to 30, twist coefficient K of 2.5 to 3.4. The pile spun yarn has average fiber length of 10 to 23 mm and short fiber content of 30 to 50% by weight when measured by JIS-L1019A method. An woven or knitted fabric contains 30 to 55% by weight of the spun yarn. The pile spun yarn preferably uses, as raw material, 10 to 50% by weight of cotton fiber A having average fiber length of 10 to 18 mm and 50 to 90% by weight of cotton fiber B having average fiber length of 22 to 35 mm when measured by JIS-L1019A method.SELECTED DRAWING: Figure 1

Description

The present invention relates to a pile spun yarn having excellent heat retention, light weight and bulkiness, and a woven or knitted yarn using the spun yarn as fleece or sinker pile.

Cotton woven and knitted fabrics are often used in the summer of the year because of their good hygroscopicity and cool contact feeling. In order to make this cotton woven knit usable even in the fall and winter, by making fleece and pile with thick threads and raising it, the thickness of the woven knit is increased and a lot of air is included to keep it warm. It is being made higher. However, since such woven and knitted fabrics tend to be heavy fabrics, there has been a demand for a pile product that is lighter and has higher heat retention.

As a measure to meet this demand, Patent Document 1 states that as a towel product having a non-plyed pile that improves the feel, lightness, and breathability, and facilitates sewing, the pile yarn has a finer count (40) than before. Towel products using non-twisted yarns (up to 90 counts) have been proposed. However, although this towel product is lightweight because the pile is thin, it tends to be inferior in flesh, and there is a problem that the cost increases due to the addition of the untwisting process.

Further, in Patent Document 2, as a multi-layer yarn suitable for producing a woven or knitted fabric having excellent lightness and bulkiness with high quality, a core is made of an alkaline easily soluble short fiber having a single yarn fineness of 0.6 to 2.2 dtex. The sheath is composed of short cellulose fibers having a single yarn fineness of 0.6 to 2.2 dtex, and the mass ratio (core: sheath) between the core and the sheath is in the range of 10:90 to 60:40. A spun yarn has been proposed. However, in this spun yarn, alkaline easily soluble short fibers are dissolved after being made into a woven or knitted fabric, and the gaps between the fibers are increased. There was a problem that pilling was likely to occur.

WO2015-94887 Japanese Unexamined Patent Publication No. 2016-69755

The present invention has been devised in view of the above-mentioned current state of the prior art, and includes spun yarns for piles having excellent heat retention, light weight, and bulkiness, and woven and knitted yarns using the spun yarns for piles. The purpose is to provide.

As a result of diligent studies to achieve the above object, the present inventor has achieved a high bulge by properly using cotton short fibers having an extremely short fiber length, which are not used for ordinary spun yarn, under specific conditions. We have found that we can provide the optimum spun yarn for hair and pile. Furthermore, it has been found that by using this spun yarn, it is possible to provide a woven or knitted fabric having high heat retention, light weight and bulkiness.

The present invention has been completed based on the above findings, and has the following configurations (1) to (5).
(1) A pile spun yarn made of cotton fibers having an English count of 5 to 30 and a twist coefficient K of 2.5 to 3.4, and the average fiber of the spun yarn as measured by the JIS-L1019A method. A spun yarn for pile, characterized in that the length is 10 to 23 mm and the short fiber content is 30 to 50% by weight.
(2) The spun yarn for pile according to (1), wherein the specific volume according to the JIS-L1095B method is 6.0 to 8.5 cm ^{3 / g.}
(3) The method for producing a spun yarn for pile according to (1) or (2), which is a cotton fiber having an average fiber length of 10 to 18 mm as a raw material of the spun yarn as measured by the JIS-L1019A method. A production method characterized by using 10 to 50% by weight of A and 50 to 90% by weight of cotton fiber B having an average fiber length of 22 to 35 mm.
(4) The pile woven knitted fabric having a mixing ratio of the spun yarn for pile according to (1) or (2) of 30 to 55% by weight, having a specific volume of 6.0 to 8.0 cm ³ / g. A pile woven knit that is characterized by this.
(5) The pile woven knit according to (4), wherein the pile woven knit is a fleece or a sinker pile.

Since the spun yarn for piles of the present invention is excellent in heat retention, light weight, and bulkiness, it is suitable for woven and knitted fabrics mainly made of cotton such as inners, outers such as sweatshirts, baby products, towels, and bedding, and is light. Puffy, warm and comfortable pile clothing can be provided.

FIG. 1 is a side photograph of the spun yarn (a) of the present invention and the conventional spun yarn (b). FIG. 2 shows an example staple diagram of cotton fiber A used as a raw material for the spun yarn of the present invention. FIG. 3 shows a staple diagram of fibers taken out by solving an example of the spun yarn of the present invention. FIG. 4 shows a staple diagram of fibers taken out by solving an example of a conventional spun yarn. FIG. 5 shows a structure diagram of a fleece knitted fabric used in Examples as a knitted fabric of a woven or knitted fabric of the present invention. FIG. 6 shows a structure diagram of a sinker pile used in Examples as the knitting structure of the woven and knitted fabric of the present invention.

The spun yarn for piles of the present invention is characterized by having an average fiber length of 10 to 23 mm and a short fiber content of 30 to 50% by weight as measured by the JIS-L1019A method. If the average fiber length is short and the short fiber content is high, the yarn cannot be used for clothing. However, in the present invention, the average fiber length is short by using raw cotton having different average fiber lengths as a raw material. However, not only can we make yarns that are practical for clothing, but we have also come to be able to provide spun yarns that are optimal for piles. This spun yarn is preferably produced by blending, for example, cotton fiber B having a relatively long average fiber length for clothing and cotton fiber A having an extremely short average fiber length, which is not normally used for clothing. The shorter cotton fiber A has the effect of increasing the surface fluff of the spun yarn and increasing the bulkiness. Further, the longer cotton fiber B has an effect of putting the physical characteristics of the spun yarn into a practical category. In the present invention, by spinning a short cotton fiber A and a long cotton fiber B as raw materials in a well-combined manner, a large amount of air layer is retained in the yarn to realize bulkiness and light weight, and a pile shape. However, it becomes possible to further increase the compressive elastic modulus, and it is possible to provide an excellent spun yarn for piles. The preferred average fiber length of the spun yarn for piles of the present invention is 15 to 22 mm, and the preferred short fiber content is 33 to 45%. If the average fiber length is less than the above range or the short fiber content exceeds the above range, fluff may fall off from the finished woven or knitted fabric, and the product quality tends to deteriorate. When the average fiber length exceeds the above range or the short fiber content is less than the above range, it tends to be difficult to improve the light and warm performance of the present invention.

In order to achieve the above characteristics, the spun yarn of the present invention needs to contain cotton fiber A having an extremely short fiber length. Since the cotton fiber A has a short fiber length, it does not contribute to the improvement of physical properties such as the strength of the spun yarn, but the surface fluff of the spun yarn is increased to increase the apparent bulkiness, and the cotton fiber A is combined with the relatively long cotton fiber B. This can contribute to increasing the dead air in the spun yarn and improving the heat retention. Therefore, the spun yarn of the present invention ^{can have a specific volume of 6.0 to 8.5 cm 3} / g according to the JIS-L1095B method.

The extremely short cotton fiber A used in the spun yarn of the present invention preferably has an average fiber length of 10 to 18 mm when measured by the JIS-L1019A method, and has an average fineness of 2.6 micronear fineness. It is preferably ~ 5.5 μg / inch. From the viewpoint of cost and quality, it is more preferable that the micronear fineness is 3.0 to 5.0 μg / inch. If fibers thicker than this are used, the number of fibers formed in the cross section of the spun yarn tends to be too small, the productivity tends to decrease, and the yarn spots tend to increase. As such an extremely short cotton fiber A, cotton fallen in the combing process, a card sliver cut into short pieces, or the like can be used. The mixing ratio of the cotton fiber A in the spun yarn of the present invention is preferably 10 to 50% by weight. More preferably, it is 15 to 45% by weight. If the mixing ratio is less than the above range, the effect of increasing dead air is small, and it tends to be difficult to improve heat retention, lightness, and bulkiness of the pile. If the mixing ratio exceeds the range, it becomes difficult to obtain the required strength as the spun yarn for clothing, and the productivity tends to decrease.

The relatively long cotton fiber B used in the spun yarn of the present invention preferably has an average fiber length of 22 to 35 mm when measured by the JIS-L1019A method, and has an average fineness of 2.6 micronear fineness. It is preferably ~ 5.5 μg / inch. More preferably, ultra-long cotton of 3.4 to 5.0 μg / inch is used. When the average fiber length and the micronear fineness are in this range, it is easy to realize a spun yarn which is light and has excellent compressive elasticity while maintaining practical strength. As the type of raw cotton that can be specifically used, Australian cotton, pima cotton and the like can be used. The mixing ratio of the cotton fiber B in the spun yarn of the present invention is preferably 50 to 90% by weight. More preferably, it is 55 to 85% by weight. If the mixing ratio is less than the above range, the physical characteristics of the yarn tend to deteriorate. If the mixing ratio exceeds the above range, it becomes difficult to increase the bulkiness and the compressive elasticity of the pile. Here, the average fiber length measured directly from the raw cotton and the average fiber length measured by twisting the spun yarn using the raw cotton are not the same, and fiber shedding and fiber cutting occur during the production process, so it is simple. It should be noted that the value will be different from the calculated value. Therefore, in practice, the average fiber length of the spun yarn of the present invention represents the average fiber length extracted from the spun yarn, and therefore tends to be shorter than the average fiber length of the raw cotton used.

An example of the spun yarn of the present invention was untwisted to draw a staple diagram of a fiber composed by using the A method (double sorter method) of the fiber length of JIS-L1019-7.2.1. FIG. 2 is a staple diagram of cotton fiber A used as a raw material for the spun yarn of the present invention, FIG. 3 is a staple diagram of fibers taken out by solving an example of the spun yarn of the present invention, and FIG. 4 is conventional spinning. The staple diagram of the fiber taken out by unraveling an example of a thread is shown. From these figures, it can be seen that the staple diagram of the spun yarn of the present invention contains more fibers having a short fiber length than the conventional spun yarn.

The fineness of the spun yarn of the present invention is 5 to 30 in English. It is preferably 10 to 25th. If the fineness is thicker than the above range, the woven or knitted fabric using this spun yarn becomes heavy, and it is difficult to obtain a thin and light woven or knitted fabric. Further, if it is thinner than the above range, the spun yarn becomes too thin and it is difficult to obtain heat retention, and the strength of the spun yarn when it is sweet-twisted may not reach a practical level. The spun yarn of the present invention may be a single yarn, a twin yarn, or a triple twist, but the total fineness must be 5 or more.

The spun yarn of the present invention has a twist coefficient K of 2.5 to 3.4 from the viewpoint of heat retention. It is preferably 2.6 to 3.2. If the twist coefficient is smaller than the above range, the strength of the spun yarn may not reach the practical level, and if it is larger than the above range, the heat retention is difficult to improve and the texture becomes cold like the conventional cotton material. It is easy to get rid of.

The spun yarn of the present invention is preferably produced by the ring spinning method. By optimizing the spinning method using the ring spinning method, the dead air between the fibers of the spun yarn can be increased to maximize the bulkiness. In the present invention, in order to achieve an average fiber length of 10 to 23 mm and a short fiber content of 30 to 50% by weight when measured by the JIS-L1019A method, it is compared with, for example, extremely short cotton fiber A as described above. By optimizing the spinning conditions using the long cotton fiber B, the yarn on the side surface of the yarn can be obtained as shown in FIG. 1 (a). 1 (a) and 1 (b) are spun yarns having the same fineness, but (a) is the spun yarn of the present invention, and (b) is a conventional spun yarn, that is, a normal combed yarn. be. From the comparison of FIGS. 1 (a) and 1 (b), it can be seen that FIG. 1 (a) has a large diameter even though both have the same fineness. Further, the spun yarn of the present invention preferably has a high twist angle. This high twist angle is the cause of increasing the bulkiness of the pile. In order to realize this high twist angle, it is preferable to perform spinning while maintaining the required number of twists while reducing the twisting speed at the time of spinning. Specifically, the spinning tension from the front roller to the traveler is reduced. It is preferable to measure the yarn tension upstream of the snell wire and adjust it to the condition that enables stable production with the lowest tension.

The spun yarn of the present invention can be suitably used as a pile for woven and knitted fabrics such as fleece, sinker pile, latch pile, French pile, and towel woven fabric.

In the woven and knitted fabric of the present invention, the mixing ratio of the spun yarn of the present invention described above is preferably 30 to 55% by weight. It is preferably 30 to 45% by weight. If the mixing ratio of the spun yarn of the present invention is less than the above range, it tends to be difficult to improve the heat retention and bulkiness. If the mixing ratio of the spun yarn of the present invention exceeds the above range, the ground structure becomes poor and it tends to be difficult to satisfy the physical characteristics of the entire knitted fabric to the minimum. When other yarns are interwoven, it is preferable to use a fine yarn having a count of 60 or more in order to maintain thin and light characteristics. More preferably, it is 80th or higher. Specifically, filaments of 50 dtex or less, spun yarns or composite yarns are preferably used.

The density of the woven or knitted fabric of the present invention is preferably 25 to 29 pieces / inch for the course and 20 to 24 pieces / inch for the wale. If the course density is less than the above range, the swelling is likely to be chipped, and if it exceeds the above range, the dough becomes hard and it is difficult to obtain the swelling. Further, when the wale density is less than the above range, the dough tends to lack swelling, and when it exceeds the above range, the dough tends to become hard.

The thread used for the ground structure of the woven or knitted fabric of the present invention is not particularly limited, and a general thread suitable for applications such as clothing, bedding, and interior may be used. For example, polyethylene terephthalate fiber, polybutylene terephthalate fiber, polylactic acid fiber, polyester fiber such as polyarylate, polyamide fiber such as nylon 6 and nylon 66, polyacrylonitrile, acrylic fiber made from polyacrylonitrile-vinyl chloride copolymer and the like. , Natural fibers such as cotton, hemp, hair and silk, and recycled fibers such as rayon, polynosic, cupra and leyocel can be used. Among them, polyester fiber is preferable, and polyethylene terephthalate fiber is particularly preferable because it has appropriate rigidity.

The thickness of the woven or knitted fabric of the present invention is preferably 1.0 to 4.0 mm. More preferably, it is 1.5 to 3.0 mm. If it is thinner than the above range, it is difficult to obtain the desired heat retention, and if it is thicker than the above range, the heat retention can be obtained, but it may become heavy. The woven and knitted fabric of the present invention preferably has a basis weight of 150 to 500 g / m ^2. More preferably, it is 200 to 450 g / m ² . If the density is lighter than the above range, the density becomes too sweet and the heat retention property tends to decrease, and if the density is heavier than the above range, the comfort when worn may be impaired.

For the dyeing process of the woven or knitted fabric of the present invention, a normal method for processing a knitted fabric mixed with cellulose fibers or other fibers can be adopted, but tension is applied so as not to crush the interfiber void structure of the spun yarn of the present invention. It is necessary to pay attention to the processing. For example, the knitted fabric should not be processed by applying tension or compression in the thickness direction more than necessary during drying or heat treatment. For the woven and knitted fabric of the present invention, the smelting / bleaching method usually used for processing cotton can be used. After bleaching, enzyme treatment or liquid bleaching may be applied to give a particularly soft and bulging texture.

The woven and knitted fabric of the present invention is preferably used as a fleece or pile structure, and for example, a circular fleece structure, sinker pile, double fleece or the like is preferably used. In the case of warp knitting, it is preferably used for double raschel and the like, and in the case of woven fabric, it is preferably used for towels, velveteen, velvet and the like. More preferably, it is a circular fleece, a sinker pile, or a woven towel.

The knitting machine gauge of the fleece knitted fabric and sinker pile of the present invention is preferably 16 gauge to 20 gauge, more preferably 18 gauge to 19 gauge. If it is smaller than the above range, the density of the fabric becomes coarse and the knitted fabric without swelling tends to be obtained. Further, if it exceeds the above range, the fabric density becomes high and the knitted fabric tends to be hard and heavy. The knitting yarn length of the fleece is 450 mm to 550 mm / 100 wale for tie-in (the front yarn that constitutes the front side of the fleece knitted fabric), and the knit-in (the yarn that is arranged between the front yarn and the pile of the fleece knitted fabric). ) Is 400 mm to 450 mm / 100 wale, and the pile (pile-like yarn arranged on the back side of the fleece knitted fabric) is preferably 200 mm to 250 mm. If it is out of each range, the knitted fabric becomes hard and heavy when it is short, and it becomes difficult to obtain the original bulkiness. Further, if it is long, the dough becomes too thin, which also makes it difficult to obtain bulkiness. In the present invention, the expressions such as front yarn and fleece are used for convenience, but when using the knitted fabric, either the pile surface or the front yarn surface of the knitted fabric may be used on the front side of the product.

The sinker pile knitted fabric of the present invention preferably has a ground yarn of 300 mm to 350 mm / 100 wales and a pile yarn length of 350 mm to 480 mm / 100 W. When both are shorter than the range, the fabric density is high and the knitted fabric lacks swelling. In addition, although swelling can be obtained when the length is long, the pile shape becomes unstable, and the yarn tends to come off, making it difficult to obtain a clean pile. The pile length is preferably in the range of 1.5 to 2.0 mm. If it is less than 1.5 mm, the feeling of swelling is insufficient, and if it exceeds 2.2 mm, swelling is obtained, but the fabric becomes heavy and the bulkiness tends to be lost.

The woven and knitted fabric of the present invention may be subjected to a general finishing process such as a softening agent or an antistatic agent, or may be subjected to various other functional processes alone or in combination. Examples of functional processing include, but are not limited to, antifouling processing such as hydrophilic processing, UV cut processing, electrostatic processing, and skin care processing.

The higher the heat retention of the woven or knitted fabric of the present invention, the better, but it can be 20 to 38%. If it is lower than this range, the warmth when worn will be inferior, and if it is higher than this range, it will be difficult to reduce the weight.

Since the specific volume of the woven and knitted fabric of the present invention is made by using the spun yarn of the present invention having a high specific volume as described above, 6.0 to 8.0 cm ³ / g, particularly 6.2 to 8 It can be 0.0 cm ^{3 / g.} This numerical range is not so high for a knit with heat retention. This is due to the fact that the knit is thin and light, but in the woven knit of the present invention, due to the effect of the warm spun yarn with fine voids, high heat retention is realized compared to the apparent specific volume. There is. Further, on the surface of the woven or knitted fabric of the present invention using the fleece or pile, a feeling of swelling is high and a soft texture can be obtained.

The woven and knitted fabric using the spun yarn of the present invention is suitable for winter clothing because it has high heat retention. It is particularly suitable for applications such as underwear and sports shirts that come into direct contact with the skin. When the woven or knitted fabric of the present invention is worn, the texture is good and the user can spend a warm time without feeling rugged.

Next, the present invention will be specifically described with reference to Examples and Comparative Examples, but the present invention is not limited to these Examples. The changes 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 method for measuring the characteristic value used in the present invention is as follows.

<Average fiber length of cotton fiber>
The short fiber content was measured by putting the spun yarn into a fiber state in accordance with the A method (double sorter method) of the fiber length of JIS-L1019-7.2.1. The average fiber length was calculated from the area. The test environment was 20 ° C. and 65% RH.

<Average fineness of cotton fiber micronear fineness>
It was determined according to the method using a micronear with a fineness of JIS-L1019-7.4.1.

<Total fineness>
The apparent cotton count (English count) was measured by the method of JIS-L1095-9.4.2.

<Twist coefficient>
The number of twists was measured by the JIS-L1095-9.15A method, and the twist coefficient (K) was determined by applying the following formula.
Twist coefficient (K) = number of twists per inch (T) / √ count ('s)

<Specific volume of thread (bulky)>
The specific volume was determined according to the JIS-L1095B method.

<Thickness of knitting>
The measurement was performed according to the thickness of the knitted fabric test method of JIS-L1018-6.5.

<Metsuke of knitting>
The measurement was performed in accordance with the basis weight of the remarks of the test method for the knitted fabric of JIS-L1018-6.4.2.

<Specific volume of knitted fabric (bulky)>
The specific volume was calculated by the following formula using the measured values of thickness and basis weight as an index of the bulkiness of the knitted fabric.
Specific volume (cm ³ / g) = {thickness of knitted fabric (mm) / basis weight of knitted fabric (g / m ² )} x 1000

<Thread diameter>
Using Wooster's thread measuring device UT-5, run 400 m / min of thread through a slit and read the data (mm) displayed in the measurement item of 2Dφ (average thread diameter measured from two directions) as the thread diameter. rice field.

<Heat retention>
Using Thermolab II manufactured by Kato Tech Co., Ltd., set the BT-BOX BT plate (heat plate) to 35 ° C assuming human skin temperature in an environment of 20 ° C and 65% RH, and sample on it. Was placed, and the power consumption W when the heat transfer amount became equilibrium was measured. In addition, the power consumption W0 is measured under the condition that the sample is not placed. The heat retention was calculated by the following formula.
Heat retention (%) = {(W0-W) / W0} x 100
The size of the BT plate is 10 cm × 10 cm, but the sample is 20 cm × 20 cm. Normally, the sample is measured by contacting it with a hot plate, but in the present invention, the heat retention is measured by installing a spacer such as styrofoam having heat insulating properties on the hot plate and providing a gap of 5 mm with the sample. went.

(Example 1)
80% by weight of cotton (cotton fiber B) with an average fiber length of 26.2 mm and 20% by weight of cotton (cotton fiber A) with an average fiber length of 16.3 mm were mixed with an OHARA cotton mixing machine, and then Ishikawa Seisakusho card. A 300 gelen / 6 yd card sliver was spun using the machine. The sliver obtained from the card machine was passed through the kneading machine of the original loom twice to obtain a 400-geren / 6yd kneading sliver. Further, this sliver was passed through a roving machine manufactured by Toyota Industries Corporation to produce 210 gellen / 15 yd blister yarn. Then, using a ring spinning machine manufactured by Toyota Industries Corporation, the yarn was spun at a draft of 18 times and a traveler rotation speed (spindle rotation speed) of 6000 rpm to obtain an English-style 10th spun yarn. The twist coefficient (K) at that time was 3.0 (twist number 9.5 T / inch). The short fiber content of the obtained spun yarn was 33.2%, and the average fiber length was 21.3 mm. The specific volume of the spun yarn was 6.3 cm ³ / g.

Next, a knitted fabric made into a pile of fleece was prepared using the finished spun yarn. As the fleece knitting machine, DF-3 manufactured by Fukuhara Machinery Co., Ltd. is used, the front yarn (tie-in) is combed 20/1, the joint yarn (knit-in) is combed 30/1, and the pile is (spun yarn of Example 1) 10. A two-fly fleece knitted fabric with / 1 was obtained. The organization chart of the fleece knitted fabric used is shown in FIG. The finished fleece knitted fabric was soaped, dyed with a reactive dye, dried with a tenter, and set to finish to obtain a dyed finished dough. The finished fleece knitted fabric had a mixing ratio of 36% by weight of the spun yarn and a specific volume (bulkyness) of 6.58 cm ³ / g, and was a soft and bulging knitted fabric. Table 1 shows details of the spun yarn, knitted fabric, etc. of Example 1.

(Example 2)
A spun yarn was obtained under the same conditions as in Example 1 except that 65% by weight of cotton having an average fiber length of 26.4 mm and 35% by weight of cotton having an average fiber length of 16.1 mm were mixed. The short fiber content of the spun yarn obtained at that time was 40.6%, and the average fiber length was 18.4 mm. The specific volume of the spun yarn was 7.0 cm ³ / g. Next, using the finished spun yarn, two fly fleece was knitted under the same conditions as in Example 1, and a dyeing finish was performed to obtain a fleece knitted fabric. The finished fleece knitted fabric had a mixing ratio of 36% by weight of the spun yarn and a specific volume (bulkyness) of 7.2 cm ³ / g, and was a soft and bulging knitted fabric. Table 1 shows details of the spun yarn, knitted fabric, etc. of Example 2.

(Example 3)
Spinning was performed under the same conditions as in Example 1 except that the spindle rotation speed of the spinning machine during spinning was changed to 8000 rpm. Next, using the finished spun yarn, a two-fly fleece knitted fabric was produced under the same conditions as in Example 1. The finished fleece knitted fabric had a mixing ratio of 36% by weight of the spun yarn and a specific volume (bulkyness) of 6.38 cm ³ / g, and was a soft and bulging knitted fabric. Table 1 shows details of the spun yarn, knitted fabric, etc. of Example 3.

(Example 4)
Spinning was performed under the same conditions as in Example 1 except that the spindle speed of the spinning frame during spinning was changed to 4000 rpm and the twist coefficient K of the yarn was changed to 2.7. Next, using the finished spun yarn, a two-fly fleece knitted fabric was produced under the same conditions as in Example 1. The finished fleece knitted fabric had a mixing ratio of 36% by weight of the spun yarn and a specific volume (bulkyness) of 6.90 cm ³ / g, and was a soft and bulging knitted fabric. Table 1 shows details of the spun yarn, knitted fabric, etc. of Example 4.

(Example 5)
Example 1 except that the cotton used for the cotton fiber B having an average fiber length of 24.3 mm was changed to 60% by weight, and the cotton used for the cotton fiber A having an average fiber length of 12.3 mm was changed to 40% by weight. It was spun under the same conditions as. Next, using the finished spun yarn, a two-fly fleece knitted fabric was produced under the same conditions as in Example 1. The finished fleece knitted fabric had a mixing ratio of 36% by weight of the spun yarn and a specific volume (bulkyness) of 7.15 cm ³ / g, and was a soft and bulging knitted fabric. Table 1 shows details of the spun yarn, knitted fabric, etc. of Example 5.

(Example 6)
Examples except that the cotton used for the cotton fiber B having an average fiber length of 28.6 mm was changed to 60% by weight, and the cotton used for the cotton fiber A having an average fiber length of 14.2 mm was changed to 40% by weight. It was spun under the same conditions as 1. Next, using the finished spun yarn, a two-fly fleece knitted fabric was produced under the same conditions as in Example 1. The finished fleece knitted fabric had a mixing ratio of 36% by weight of the spun yarn and a specific volume (bulkyness) of 6.90 cm ³ / g, and was a soft and bulging knitted fabric. Details of the spun yarn, knitted fabric, etc. of Example 6 are shown in Table 1.

(Example 7)
Using cotton under the same conditions as in Example 1, the crude yarn gellen was set to 130 gellen / 15 yd and drafted 21.8 times with a spinning frame to spin 20/1 yarn. A sinker pile knitted fabric was knitted using the obtained spun yarn. The sinker pile knitting machine was knitted with a pile length of 2.0 mm using a PL-2 knitting machine of Fukuhara Machinery Co., Ltd. of 30 "-18G. The organization chart of the sinker pile used is shown in FIG. The sinker pile knitted fabric was dyed under the same conditions to obtain a sinker pile knitted fabric. The finished sinker pile knitted fabric had a mixing ratio of 40% by weight of the spun yarn, and its specific volume (bulkyness) was 7.50 cm ³ / g. The knitted fabric was soft and bulged. Details of the spun yarn, knitted fabric, etc. of Example 7 are shown in Table 1.

(Comparative Example 1)
100% by weight of cotton having an average fiber length of 32.7 mm was mixed using an OHARA cotton carder, and then a 300 gelen / 6 yd card sliver was spun using a card machine manufactured by Ishikawa Seisakusho. The card sliver was then hung on a combing machine to obtain a 350 gelen / 6 yd combus river, leaving long fibers. The combus river was doubling with a kneading machine and drafting was repeated twice to prepare a kneading sliver of 400 gelen / 6 yd. Then, it was run on a scouring machine to obtain 210 gelene / 15 yd blister yarn. The resulting blister yarn was drafted 18 times in a spinning machine and spun with a 10/1 combed yarn with a twist coefficient of K3.6. The specific volume of the obtained spun yarn was 5.1 cm ³ / g, which was a low value. Using the obtained spun yarn, a two-fly fleece knitted fabric was produced under the same conditions as in Example 1. The finished fleece knitted fabric had a mixing ratio of 36% by weight of the spun yarn and a specific volume (bulkyness) of 5.40 cm ³ / g. Table 1 shows details of the spun yarn, knitted fabric, etc. of Comparative Example 1.

(Comparative Example 2)
Using 100% by weight of cotton having an average fiber length of 28.1 mm, spinning was performed under the same conditions as in Example 1 except that the twist coefficient K of the yarn was 4.0. Using the obtained spun yarn, a two-fly fleece knitted fabric was produced under the same conditions as in Example 1. The finished fleece knitted fabric had a mixing ratio of 36% by weight of the spun yarn and a specific volume (bulkyness) of 5.90 cm ³ / g. Table 1 shows details of the spun yarn, knitted fabric, etc. of Comparative Example 2.

(Comparative Example 3)
After producing up to 400 gelen / 6 yd kneaded sliver under the same conditions as in Example 1, the produced sliver was spun with MVS861 type manufactured by Murata Machinery. The draft condition of MVS at that time was 110 times, and 10/1 yarn was obtained. Using the spun yarn thus obtained by air spinning, a two-fly fleece knitted fabric was produced under the same conditions as in Example 1. The finished fleece knitted fabric had a mixing ratio of 36% by weight of the spun yarn and a specific volume (bulkyness) of 5.10 cm ³ / g. Table 1 shows details of the spun yarn, knitted fabric, etc. of Comparative Example 3.

According to the present invention, it is possible to provide a spun yarn for a pile having excellent heat retention, light weight, and compressive elasticity, and a woven or knitted fabric using the spun yarn as a pile, which is extremely useful in the art.

Claims (5)

A pile spun yarn made of cotton fibers having an English count of 5 to 30 and a twist coefficient K of 2.5 to 3.4, and the average fiber length of the spun yarn is 10 when measured by the JIS-L1019A method. A spun yarn for piles having a short fiber content of about 23 mm and a short fiber content of 30 to 50% by weight. The spun yarn for pile according to claim 1, wherein the specific volume according to the JIS-L1095B method is 6.0 to 8.5 cm ^{3 / g.} The method for producing a spun yarn for pile according to claim 1 or 2, wherein as a raw material for the spun yarn, 10 to 50 cotton fibers A having an average fiber length of 10 to 18 mm as measured by the JIS-L1019A method are used. A production method characterized by using 50 to 90% by weight of cotton fiber B having an average fiber length of 22 to 35 mm and a weight% of cotton fiber B. The pile woven or knitted fabric according to claim 1 or 2 in which the mixing ratio of the spun yarn for pile is 30 to 55% by weight, and the specific volume is 6.0 to 8.0 cm ³ / g. Pile woven knit. The pile woven knit according to claim 4, wherein the pile woven knit is a fleece or a sinker pile.

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