Animal-hair like napped fabric and method for producing the same

Abstract

To provide an animal-hair like napped fabric that realistically reproduces an appearance of animal hairs by forming a two-layer structure where a napping length of the long cut pile yarns erected from a bottom and a napping length of the short cut pile yarns erected from the shared bottom are each uniformly aligned.SOLUTION: There is provided an animal-hair like napped fabric comprising a ground weave part and a napped part composed of a plurality of cut pile yarns which is restrained by the ground weave part and is erected. The napped part includes a plurality of cut pile yarns of two or more kinds which is derived from at least partially released one covering yarn, is erected from a shared bottom, and has different napping lengths. Among the two or more kinds of cut pile yarns with different napping lengths, at least one of the cut pile yarns with the longest napping length is selected from raw yarns and spun yarns of synthetic fiber multifilaments. A difference between the napping length of the longest cut pile yarn among the two or more kinds of cut pile yarns erected from the shared bottom and the napping length of the second longest cut pile yarn is 1.0 to 20.0 mm, and a ratio of the napping length of the longest cut pile yarn to the napping length of the shortest cut pile yarn among two or more kinds of cut pile yarns erected from the shared bottom is 1.10 to 1.50.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to an animal hair-like pile fabric, and more particularly to an animal hair-like pile fabric comprising two or more types of cut pile yarns with different pile lengths derived from unwound covering yarns, and a method for producing the same. [Background technology]

[0002] Natural fur consists of thick, non-curly guard hairs (also called guard hairs) that protect the body, and relatively thin, crimped undercoat (also called down hairs) that provide warmth. The topcoat is longer than the undercoat. When artificially creating fabrics that resemble fur, a blend of low-shrinkage and high-shrinkage yarns in an appropriate ratio is used as the pile yarn for the raised fabric to reproduce the guard hairs and down hairs, or slivers or spun yarns made by blending staple fibers of different cut lengths are used.

[0003] Patent document 1 proposes a piled fabric in which the piled fibers are polyester-based fibers, and the piled fibers are made of a blended filament yarn of two or more types: a high-shrinkage yarn made of a copolymer polyester and a low-shrinkage yarn made of a non-copolymer polyester.

[0004] Patent Document 2 proposes a pile fabric in which numerous piles and down fibers are raised from a base fabric, in which pile yarn is produced using spun yarn consisting of piles with sharpened ends and staples of different fiber lengths for the down fibers, and then brushing is performed to raise the piles in a distributed manner, with the long-fiber-length piles and the short-fiber-length down fibers. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 7-316948 [Patent Document 2] Japanese Patent Application Publication No. 1-168936 Summary of the Invention [Problem to be solved by the invention]

[0006] In the case of forming a low pile layer equivalent to the down pile using high shrinkage yarn and forming the pilot hairs using low shrinkage yarn as described in Patent Document 1, the down piles of the high shrinkage yarn are insufficient to support the pilot hairs. Furthermore, the method of imparting the height difference requires the use of a copolymer polyester resin, which leads to high costs. Furthermore, as described in Patent Document 2, pile is formed using spun yarn made of staples with sharpened ends, and then backing processing is performed, and then pile yarns that are not fixed to the base fabric are removed by brushing, thereby forming the raised piles of the pilot hairs and the raised piles of the cotton hairs. However, there was a problem in that the raised pile lengths of the pilot hairs and the raised pile lengths of the cotton hairs from any base could not be made to be uniform in height.

[0007] The present invention provides a piled fabric that resembles animal hair and reproduces the appearance of animal hair more realistically, since the pile lengths of the long cut pile yarns that stand up from the base and the short cut pile yarns that stand up from the same base are uniformly aligned to form a two-layer structure. [Means for solving the problem]

[0008] The present inventors have conducted extensive research to solve the above problems and have arrived at the present invention. That is, the present invention includes the following preferred embodiments. [1] An animal hair-like pile fabric comprising a ground weave portion and a pile portion composed of a plurality of cut pile yarns restrained by the ground weave portion and standing upright, wherein the pile portion is composed of two or more types of cut pile yarns with different pile lengths that are derived from one covering yarn that has been at least partially unwound and that are standing upright from the same base, wherein the cut pile yarn with the longest pile length is at least one selected from synthetic multifilament raw silk and spun yarn, wherein the difference between the pile lengths of the longest and second longest cut pile yarns among the two or more types of cut pile yarns standing upright from the same base is 1.0 to 20.0 mm, and the ratio of the pile lengths of the longest and shortest cut pile yarns among the two or more types of cut pile yarns standing upright from the same base is 1.10 to 1.50. [2] The fabric of the animal hair-like pile fabric described in [1], wherein the structure portion comprises an unreeled covering yarn comprising a core yarn and one or more wrapping yarns wound around the core yarn, and in the pile portion, two or more types of cut pile yarns with different pile lengths are erected from the same base derived from one covering yarn. [3] The animal hair-like pile fabric according to [1] or [2], wherein the longest cut pile yarn standing from the same base has a single fiber fineness of 3 to 50 dtex, and the shortest cut pile yarn has crimp. [4] A method for producing an animal hair-like pile fabric according to any one of [1] to [3], comprising the steps of: preparing a covering yarn comprising a core yarn and one or more wrapping yarns wound around the core yarn, the outermost wrapping yarn being wound so as to become the cut pile yarn with the longest pile length when the wrapping yarns are unwound; implanting the covering yarn into a base fabric to produce a cut pile fabric including a pile portion composed of the covering yarn; and unwinding the covering yarn that constitutes the pile portion of the cut pile fabric. [5] A method for producing an animal hair-like pile fabric according to [4], wherein the covering yarn is a single covering yarn or a double covering yarn. [6] A method for manufacturing an animal hair-like pile fabric described in [4] or [5], in which the wrapping yarn of the covering yarn has a torque and is wound in the opposite direction to its own torque. [Effects of the Invention]

[0009] According to the present invention, the pile lengths of the long cut pile yarns that stand up from the base and the short cut pile yarns that stand up from the same base are uniformly aligned to form a two-layer structure, thereby providing an animal hair-like pile fabric that more realistically reproduces the appearance of animal hair. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a schematic diagram illustrating the structure of the animal hair-like pile fabric of the present invention. [Figure 2] FIG. 2 is a schematic diagram of an animal hair style pile fabric according to one embodiment of the present invention, viewed from the weft cross section direction. [Figure 3] FIG. 3 is a schematic diagram for explaining the structure of a double-covered yarn. [Figure 4] FIG. 4 is a schematic diagram showing the relationship between the lengths of a core yarn, an inner wrapping yarn, and an outer wrapping yarn in a double-covered yarn. [Figure 5] FIG. 5 is a schematic diagram illustrating the structure of cut pile constituting a raised fabric for artificial fur according to one embodiment of the present invention, viewed from the weft cross section direction. [Figure 6] FIG. 6 is a schematic diagram illustrating the structure of cut pile constituting an animal hair style raised pile fabric according to one embodiment of the present invention, viewed from the weft cross section direction. [Figure 7] FIG. 7 is a diagram for explaining a method for measuring the length of cut pile that constitutes the animal hair style pile fabric. [Figure 8] FIG. 8 is a diagram for explaining a method for measuring the length of cut pile that constitutes the animal hair style raised pile fabric. [Figure 9] FIG. 9 is a schematic diagram showing the arrangement of the core yarn and the wrapping yarn, for explaining the formulas (1) and (2). [Figure 10]FIG. 10 is an enlarged photograph of a covering yarn according to one embodiment of the present invention, used to determine the diameter of the covering yarn and the helix angle of the wrapping yarn around the covering yarn. [Figure 11] FIG. 11 is a schematic diagram for explaining how to determine the helix angle of the wrapping yarn of the covering yarn. [Figure 12] FIG. 12 is a schematic diagram showing an example of a manufacturing apparatus for a covering yarn that can be used in the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, embodiments of the present invention will be described in detail. Note that the scope of the present invention is not limited to the embodiments described here, and various modifications can be made without departing from the spirit of the present invention.

[0012] <Animal hair trimmed blanket> The animal hair-like pile fabric of the present invention (hereinafter simply referred to as "pile fabric") includes a ground weave portion and a pile portion composed of a plurality of cut pile yarns that are restrained by the ground weave portion and stand upright. The pile portion is composed of a plurality of cut pile yarns of two or more types with different pile lengths that are derived from one covering yarn that is at least partially unwound and stands upright from the same base.

[0013] In this invention, when discussing the lengths of cut pile yarns, such as two or more types of cut pile yarns with different pile lengths, the pile lengths of the longest cut pile yarn, the second-longest cut pile yarn, and the shortest cut pile yarn, the following definitions are used: The cut pile yarns in the animal-hair-like piled fabric of this invention are always derived from either the wrapping yarn or the core yarn that constitutes the covering yarn, and cut pile yarns with the same origin are referred to as "same type of cut pile yarn," while cut pile yarns with different origins are referred to as "different type of cut pile yarn." The average length of cut pile yarns with the same origin is taken as the pile length of that cut pile yarn, and when comparing the pile lengths of cut pile yarns, the pile lengths of different types of cut pile yarns are compared and ranked as longest, second-longest, and shortest.

[0014] For example, the piled fabric 1 shown in Figure 1 is composed of a piled portion 10 formed from cut pile yarns 11 with a long pile length and cut pile yarns 12 with a shorter pile length than the cut pile yarns 11, and a ground weave portion 20 formed from weft yarns 21 and warp yarns 22. In this disclosure, the ground weave portion refers to the basic components assembled according to a certain rule so that a woven or knitted fabric can form a sheet-like body. In the case of a woven fabric, for example, it refers to the state in which weft yarns and warp yarns are combined according to a certain rule. In the ground weave portion 20, covering yarns 13 are regularly bound by weft yarns 21 and warp yarns 22. The cut pile yarns 11 and 12 that make up the piled portion 10 each originate from a single covering yarn 13, and extend from the same root 14 through the ground weave portion 20 to stand on the surface of the fabric.

[0015] In this disclosure, "standing" refers to the state in which cut pile yarns penetrate the ground weave portion surrounded by warp and weft yarns and appear on the surface of the fabric. Furthermore, "root" refers to the portion where the cut pile yarns penetrate the ground weave portion on the side where they are standing. "Originating from one covering yarn" means that when one end of a cut pile yarn is pulled out of the ground weave portion, the cut pile yarn is derived from the same covering yarn. "Two or more types of cut pile yarns" here means that there are two or more types of cut pile yarns that differ in length (piling length). In other words, the piled portion of the present invention has two or more stages of pile length difference due to the presence of the two or more types of cut pile yarns.

[0016] FIG. 2 is a view of the piled fabric 1 shown in FIG. 1, viewed from the cross-sectional direction of the weft yarn 21. Two types of cut pile yarns with different pile lengths, i.e., cut pile yarns 11 and 12, originating from a single covering yarn 13, are erected from the same root 14 through the ground weave portion 20. The piled portion 10 includes multiple roots 14, and a pair of cut pile yarns 11 and 12 is erected from each of the multiple roots 14. Two or more types of cut pile yarns with different pile lengths are obtained by unwinding the wrapping yarn of the covering yarn from which the cut pile yarns are derived. In the piled fabric of the present invention, typically, two or more types of cut pile yarns with different lengths are present at one or both ends of a single covering yarn. A plurality of the covering yarns are confined in the ground weave portion, and the piled portion is composed of multiple cut pile yarns derived from each covering yarn. In FIG. 2, cut pile yarn 11 with a long pile length originates from the wrapped yarn of covering yarn 13, and cut pile yarn 12 with a short pile length originates from the core yarn of covering yarn 13, and is obtained by unwinding covering yarn 13 from its root 14.

[0017] In a piled fabric, each covering yarn is typically restrained in two or more locations in the ground weave portion, and when viewed in the weft cross section, it can be restrained in the shape of the letters U, V, or W. For example, in Figure 2, it is restrained in a W shape. In either restrained state, one covering yarn is unwound at both ends that penetrate the ground weave portion, forming two or more types of cut pile yarn. Therefore, each covering yarn restrained in the ground weave portion typically has roots at both ends where the cut pile yarns stand. In other words, each covering yarn restrained in the ground weave portion typically has two roots where the cut pile yarns stand. In other words, the covering yarn restrained in the ground weave portion is not unwound and maintains a state in which the wrapping yarn is wrapped around the core yarn. Therefore, it is possible to determine which component of the covering yarn (wrapping yarn, core yarn) the cut pile yarn in the piled fabric of the present invention originates from by checking the portion of the root that is restrained in the ground weave portion. According to this confirmation method, even if the covering yarn used in the piled fabric is a covering yarn that has undergone double covering processing or more, in which multiple wrapping yarns are wrapped around it, it is possible to identify whether the cut pile yarn was an outer wrapping yarn or an inner wrapping yarn.

[0018] Conventionally, covering yarns have been used in various applications due to the advantages of their structure of covering a core yarn with a sheath yarn, and even in piled fabrics using covering yarns, it has not been assumed that the covering yarns will be unwound and used. On the other hand, the present invention provides an animal-hair-like piled fabric with a novel structure having a piled portion formed from cut pile derived from the unwound covering yarn, based on the relationship that the length of the wrapping yarn that constitutes the covering yarn is always longer than the length of the core yarn. Pile fabrics can be produced from various fibers depending on the application using weaving and knitting machines such as double velvet looms and tufting machines. The pile length of the pile fabrics produced using such machines is generally determined by the components of the machine (e.g., the looper in a tufting machine) and the conditions set for that machine. However, in the pile fabric of the present invention, by previously controlling the lengths of the core yarn and wrapping yarn in the covering yarn to the desired lengths, pile fabrics with a variety of different pile lengths can be efficiently produced without the need for special machines or changing machine settings. In particular, because the pile length of the cut pile yarn can be controlled to the desired length by adjusting the length of the wrapping yarn, a pile length exceeding the cut pile height determined by the machine settings can be achieved. Furthermore, since the pile length can be controlled by the length of the wrapping yarn, compared to conventional techniques, by setting the binding yarn length (pile length) short when producing a cut pile fabric, it is advantageous in terms of work efficiency and cost, and by unwinding the covering yarn, it is possible to more easily obtain a piled fabric with a high pile height. Furthermore, since the final pile length can be controlled at the stage of the covering yarn used in fabric production, it is possible to more easily achieve a uniform difference in pile length throughout the entire target area compared to methods that utilize differences in fiber shrinkage due to heat treatment or solvent treatment after the fabric is formed.

[0019] The number of cut pile yarns erected from one base in the piled portion can be adjusted by the number of wrapping yarns of the covering yarn used to form the piled portion and the number of these to be unwound. For example, in a double-covered yarn 30 in which an inner wrapping yarn 32 and an outer wrapping yarn 33 are wound around a core yarn 31 as shown in Figure 3, when the two wrapping yarns are unwound, three cut pile yarns emerge from the same base, as shown in Figure 4. Also, by using a single-covered yarn in which one wrapping yarn is wound around a core yarn, a piled fabric can be obtained in which two yarns erected from the same base can be obtained.

[0020] The pile length of the cut pile yarns that are erected from one base in the piled portion depends on the lengths of the core yarn and the wrapping yarn of the covering yarn used to form the piled portion. Because the wrapping yarn is wrapped around the core yarn, when the wrapping yarn is unwound, its length becomes longer than that of the core yarn, as shown in Figure 4. That is, for example, if the covering yarn is a single-covering yarn, a two-stage difference in yarn length (the difference between the length of the core yarn and the length of the wrapping yarn) will occur after the wrapping yarn is unwound, as shown in Figure 5. Similarly, if the covering yarn is a double-covering yarn, and all the wrapping yarns are unwound, a three-stage difference in yarn length (the difference between the length of the core yarn, the length of the inner wrapping yarn, and the length of the outer wrapping yarn) will occur, as shown in Figure 6. Due to the occurrence of such differences in yarn length due to the covering yarn used, the piled fabric of the present invention can achieve a pile length that is sufficiently longer than the cut pile height determined by the machine settings.

[0021] In the piled fabric of the present invention, by setting the single fiber fineness of the cut pile yarn with the longest pile length among two or more types of cut pile yarns erected from the same base to be 3 dtex or more and 50 dtex or less, the structure, appearance, and feel can be made to resemble those of high-quality animal hair such as mink or fox. In one embodiment of the present invention, the single fiber fineness of the cut pile yarn with the longest pile length is preferably 4 dtex or more and less than 40 dtex, more preferably 5 dtex or more and 30 dtex or less. When the single fiber fineness of the cut pile yarn with the longest pile length is within the above range, the above-mentioned effects can be further enhanced. The single fiber fineness of the cut pile yarn can be measured in accordance with JIS L1013:2021.

[0022] In the piled fabric of the present invention, of two or more types of cut pile yarns erected from the same base, the cut pile yarns other than the cut pile yarn with the longest pile length have a finer single fiber fineness than the cut pile yarn with the longest pile length, preferably between 1 dtex and 20 dtex. This provides the effect of providing support for the piles with down. Furthermore, having crimp is preferable in terms of providing compressive elasticity and heat retention. In one embodiment of the present invention, the cut pile yarns other than the cut pile yarn with the longest pile length have a finer single fiber fineness of more preferably between 2.5 dtex and 15 dtex, even more preferably between 3 dtex and 12 dtex, and particularly preferably between 3 dtex and 9 dtex. When the fineness of the cut pile yarn other than the cut pile yarn with the longest pile length is within the above range, the above-mentioned effects can be further enhanced.

[0023] In the piled fabric of the present invention, the ratio of the pile length of the longest cut pile yarn to the pile length of the shortest cut pile yarn among two or more types of cut pile yarns erected from the same base (pile length of longest cut pile yarn / pile length of shortest cut pile yarn) is 1.10 to 1.50, preferably 1.15 to 1.45, and more preferably 1.25 to 1.40. When the pile length ratio is equal to or greater than the lower limit, an appropriate difference in pile length between the cut pile yarns in the piled portion can be ensured. When the ratio is equal to or less than the upper limit, a sufficient difference in pile length can be ensured without causing pile collapse. Another advantage is that the number of coverings in the covering yarn is reduced, leading to stable unwinding.

[0024] The ratio of the pile lengths is calculated by measuring the pile lengths of the longest and shortest cut pile yarns among two or more types of cut pile yarns erected from the same base, and then calculating the ratio. In this specification, the pile length of the cut pile yarn refers to the length from the surface of the ground weave on the side where the cut pile yarn is erected to the tip of the cut pile yarn. For example, as shown in Figure 7, a 20 cm length is cut along the warp to include approximately three rows of pile yarns in the ground weave when viewed from the back of the piled fabric, and the lengths of the long and short cut pile yarns within this range are measured using, for example, a ruler or measuring stick. To avoid excessive stretching of the cut pile yarns, the cut row of cut pile yarns is laid on its side and pressed against the ruler, as shown in Figure 8. In the measurements shown in Figure 8, a ruler with a minimum scale of 1.0 mm was used, and the length from the base of each cut pile yarn to its tip was visually read to 1 / 10 of the scale. The scale of the ruler used for the measurement can be selected appropriately depending on the length of the cut pile yarn being measured. For each measured cut pile yarn length, the ratio of the pile length for each set of cut pile yarns erected from the same base was calculated, and the average of the ratios for all sets within the range being measured can be used to determine the pile length ratio in this invention. More specifically, the measurement can be performed according to the method described in the Examples below.

[0025] In the piled fabric of the present invention, of two or more types of cut pile yarns erected from the same base, the difference in the pile length between the longest cut pile yarn and the second longest cut pile yarn is 1.0 to 20.0 mm. This results in a clear two-layer structure and has the effect of visually imitating the appearance of realistic animal hair. In one embodiment of the present invention, the difference in pile length is preferably 2.0 to 15.0 mm, more preferably 3.0 to 10.0 mm. When the difference in pile length is within the above range, the effect can be further enhanced.

[0026] The difference in pile length is calculated by measuring the pile length of the longest cut pile yarn and the pile length of the second longest cut pile yarn among two or more types of cut pile yarns erected from the same base, and then calculating the difference between these measurements. Specifically, the pile lengths of the cut pile yarns are measured according to the method described above, and the difference in pile length is calculated for each set of cut pile yarns erected from the same base. The difference in pile length in this invention can be determined as the average of the differences for all sets within the measurement range. More specifically, it can be measured according to the method described in the Examples below.

[0027] In the piled fabric of the present invention, in which the difference in pile length of the cut pile yarns is realized by unwinding the covering yarn, the difference in pile length can be controlled by the design of the covering yarn, thereby minimizing the variation in the difference in pile length between the short and long cut pile yarns between each base (hereinafter simply referred to as "variation in pile length difference"). Therefore, in the piled fabric of the present invention, a uniform difference in pile length can be achieved throughout the target area more easily than in a method of achieving a difference in pile length by utilizing the difference in fiber shrinkage caused by heat treatment or solvent treatment after fabric formation. In the piled fabric of the present invention, it is preferable that cut piles with a uniform difference in pile length between long and short are erected from almost all bases where the cut piles are erected. Little or no variation in the difference in pile length results in a piled fabric with excellent texture and appearance. The variation in the difference in pile length can be evaluated, for example, using the coefficient of variation of the ratio between the pile length of the longest cut pile yarn and the pile length of the shortest cut pile yarn among two or more types of cut pile yarns erected from the same base as an index. The smaller the coefficient of variation, the more uniform the difference in pile length.

[0028] The coefficient of variation can be calculated, for example, as follows: A given measurement range is cut out from the piled fabric, and the length of each cut pile yarn within the range is measured in the same manner as in the measurement of the ratio of the pile lengths of the longest and shortest cut pile yarns at the same base, and the ratio of the pile lengths for each set of cut pile yarns erected from the same base is calculated, and the coefficient of variation is determined based on the average value and standard deviation of the entire measurement range.

[0029] In the piled fabric of the present invention, among the two or more cut pile yarns with different pile lengths, the cut pile yarn with the longest pile length must be a non-bulky synthetic multifilament raw silk or spun yarn to prevent tangling between the cut pile yarns. On the other hand, the cut pile yarn with the shortest pile length is preferably a false-twisted yarn or a false-twisted yarn-containing composite yarn. In this disclosure, "synthetic multifilament raw silk" refers to a non-bulky synthetic filament yarn that has not been substantially crimped by heat treatment. In this disclosure, "spun yarn" refers to a fiber assembly consisting of staple fibers, the staple fibers having crimps, a low alignment of the constituent yarns, and a twisted form. In this disclosure, "false-twisted yarn" refers to a false-twisted yarn commonly used in the art, i.e., a textured yarn produced by the false-twisting method. Depending on the false-twisting conditions, false-twisted yarns range from non-bulky false-twisted yarns with almost no bulkiness to highly crimped false-twisted yarns with high bulkiness. In this disclosure, a "bulky" false-twisted yarn or false-twisted-yarn-containing composite yarn refers to one with a crimp elongation of, for example, 10% or more. In one embodiment of the present invention, the false-twisted yarn preferably has a crimp elongation of 12% or more, more preferably 15% or more, and even more preferably 20% or more. The upper limit of the crimp elongation of cut pile yarn is not particularly limited, but from the viewpoint of handleability and workability, it is usually 60% or less, preferably 40% or less. The crimp elongation can be adjusted to be above the lower limit or below the upper limit by selecting the false-twisting conditions for the yarn. The crimp elongation can be measured, for example, using a method similar to the method for measuring the crimp elongation of covering yarn in the examples described below. The crimp elongation of the cut pile yarn in the present invention is measured as the crimp elongation of the covering yarn that is the constituent material of the piled fabric. Hereinafter, when there is no substantial change in the physical properties of the covering yarn that is the constituent material of the piled fabric, the physical properties of the covering yarn used can be considered to be the physical properties of the cut pile yarn of the piled fabric.

[0030] In the piled fabric of the present invention, of the two or more cut pile yarns with different pile lengths, the cut pile yarns other than the cut pile yarn with the longest pile length may be, for example, synthetic multifilament raw silk, spun yarn, false twisted yarn, or false twisted yarn-containing composite yarn. From the viewpoint of the cut pile yarn's standing ability and the volume of the piled portion, it is preferable that of the two or more cut pile yarns with different pile lengths, the cut pile yarns other than the cut pile yarn with the longest pile length be false twisted yarns or false twisted yarn-containing composite yarns, or be composed of these. In this case, the crimp elongation and the presence or absence of torque of the false twisted yarns or false twisted yarn-containing composite yarns are not particularly limited, but the same embodiments as those for the outer wrapping yarn described above can be applied.

[0031] In the piled fabric of the present invention, the breaking strength of all cut pile yarns constituting the piled portion is preferably 1.5 cN / dtex or more. A cutting pile yarn breaking strength of 1.5 cN / dtex or more can prevent some of the fibers constituting the cut pile yarn from falling off when the covering yarn is unwound and / or the cut pile yarn is opened. A cutting pile yarn breaking strength equal to or greater than the above limit can prevent a decrease in the density of the piled portion due to fiber fall-off. From the viewpoint of preventing fiber fall-off, the breaking strength of the cut pile yarn is preferably 1.6 cN / dtex or more, more preferably 2.5 cN / dtex or more, even more preferably 3.0 cN / dtex or more, and particularly preferably 3.3 cN / dtex or more. While there is no particular upper limit for the breaking strength of the cut pile yarn, it is usually 7.0 cN / dtex or less. The breaking strength of the cut pile yarn can be measured in accordance with JIS L1013:2021. In this disclosure, unwinding refers to unwinding the wrapping yarn of the covering yarn from the core yarn (generally an action that acts on a fiber bundle), and opening refers to opening the fibers of the cut pile yarn with card clothing or the like to give texture and volume in the finishing process of piled fabric, for example (also known as pile splitting, generally an action that separates the constituent fibers into single yarns), regardless of whether the cut pile yarn is derived from the covering yarn or not. Therefore, depending on the processing method, unwinding and opening may be performed simultaneously.

[0032] When the cut pile yarns constituting the piled portion are synthetic multifilament raw silk, spun yarn, false-twisted yarn, or false-twisted yarn-containing composite yarn, the polymers constituting them can be appropriately selected depending on the intended use of the piled fabric. Examples of such polymers include aromatic polyesters such as polyethylene terephthalate, polypropylene terephthalate, and polybutylene terephthalate; aliphatic polyesters such as polylactic acid and polyglycolic acid; polyesters obtained by copolymerizing these polyesters with a third component (e.g., isophthalic acid and / or 5-sodium sulfoisophthalic acid); polymers obtained by kneading these polyesters with functional agents (e.g., matting agents, pigments, stabilizers, flame retardants, antibacterial agents); aliphatic polyamides such as nylon 6, nylon 66, and nylon 610; polyolefins such as polystyrene, polyvinyl chloride, and polyvinylidene chloride; and acrylic or acrylic polymers. Each cut pile yarn may be composed of one type of polymer or two or more types of polymers, and may be, for example, a core-sheath, split, or sea-island type. Of the polymers exemplified above, polyethylene terephthalate, nylon 66 and polystyrene are preferred from the viewpoint of buckling resistance and texture, and polyethylene terephthalate, nylon 66, acrylic and acrylic polymers are more preferred.

[0033] The cross-sectional shape of the cut pile yarns constituting the piled portion is not limited to a round cross-section, but may also be T-shaped, U-shaped, V-shaped, Y-shaped, C-shaped, X-shaped, W-shaped, triangular to hexagonal, triangular to 14-lobed, flat, hollow, etc., and may also be a multi-component fiber such as a composite fiber.

[0034] The pile length of each cut pile yarn constituting the piled portion can be determined appropriately depending on the intended use of the piled fabric, the product grade, etc. The pile length of each cut pile yarn is determined so that the ratio between the pile length of the longest cut pile yarn and the pile length of the shortest cut pile yarn among those raised from the same base, and the difference between the pile length of the longest cut pile yarn and the pile length of the second longest cut pile yarn among those raised from the same base, fall within the ranges described above. For example, the pile length of the longest cut pile yarn among the multiple types of cut pile yarns constituting the piled portion may be, for example, 15 to 50 mm, preferably 15 to 30 mm. The pile length of the shortest cut pile yarn among the multiple types of cut pile yarns constituting the piled portion may be, for example, 4 to 40 mm, preferably 10 to 30 mm. The pile length of each cut pile yarn can be measured according to the method described above for measuring the pile length ratio of cut pile yarns.

[0035] In one embodiment of the present invention (hereinafter also referred to as the "first embodiment"), the ground structure portion comprises an unreeled covering yarn comprising a core yarn and one wrapping yarn wound around it, and in the piled portion, two cut pile yarns of different pile lengths originating from the single covering yarn are erected from the same base. Figure 5 is a schematic diagram of a single yarn constituting the piled fabric of the present invention in the first embodiment, viewed from the cross-sectional direction of the weft, having a pair of cut pile yarns of different pile lengths at both ends. In Figure 5, yarn 15 is restrained by weft yarn 21 to form ground structure portion 20, and both ends of yarn 15 penetrate ground structure portion 20, with a pair of cut pile yarns 11 and 12 of different pile lengths erected from the same base. In the first embodiment, the portion of the yarn 15 that is restrained by the ground weave portion 20 exists as a covering yarn 13 in a state in which one wrapping yarn is wound around a core yarn (i.e., in an ununwound state). On the other hand, in the piled portion 10, the covering yarn is unwound and exists as cut pile yarns 11 and 12, with the cut pile yarn 11 becoming guard hairs and the cut pile yarn 12 becoming down hairs. In the present invention, the cut pile yarn 11 is formed from synthetic multifilament raw silk.

[0036] In the first embodiment, the unreeled covering yarn 13 may be, for example, a single covering yarn. In this case, the unreeled covering yarn 13 is composed of a core yarn and a single wrapping yarn wound around it, and the two types of cut pile yarns 11 and 12 that make up the piled portion 10 in Fig. 5 are derived from the wrapping yarn of the unreeled single covering yarn and the core yarn of the single covering yarn, respectively. This embodiment can be achieved by unreeling a single covering yarn, and of the two types of cut piles 11 and 12 that stand up from the same base 14 in the piled fabric of this embodiment, the cut pile yarn 11 with a longer pile length is derived from the wrapping yarn of the unreeled single covering yarn, and the cut pile yarn 12 with a shorter pile length is derived from the core yarn.

[0037] In another embodiment of the present invention (hereinafter also referred to as the "second embodiment"), the ground structure portion comprises an unreeled covering yarn comprising a core yarn and two or more types of wrapping yarns wound around it, and in the piled portion, three types of cut pile yarns with different pile lengths are erected from the same base derived from one covering yarn. Figure 6 is a schematic diagram of a single yarn constituting the piled fabric of the present invention in the second embodiment, viewed from the cross-sectional direction of the weft, having a pair of cut pile yarns with different pile lengths at both ends. In Figure 6, yarn 15 is restrained by weft 21 to form ground structure portion 20, and both ends of yarn 15 penetrate ground structure portion 20, with a pair of cut pile yarns 11-1, 11-2, and 12 with different pile lengths erected from the same base. In the second embodiment, the portion of the yarn 15 that is restrained by the ground weave portion 20 exists as a covering yarn 13, which is a core yarn with two or more types of wrapping yarns wound around it (i.e., in an ununwound state). On the other hand, in the piled portion 10, the covering yarn is unwound and exists as cut pile yarns 11-1, 11-2, and 12. In the present invention, the cut pile yarn 11-1 is sometimes referred to as guard hair, the cut pile yarn 12 as down hair, and the cut pile yarn 11-2 as medium hair. The cut pile yarn 11-1 is made of synthetic multifilament raw silk, and the other cut pile yarns may be synthetic multifilament raw silk, spun yarn, or false-twisted yarn, but it is preferable that the cut pile 12 be false-twisted yarn in order to properly stand the cut pile yarn.

[0038] In the second embodiment, the unreeled covering yarn 13 is preferably a double-covered yarn. In this case, the unreeled covering yarn 13 is composed of a core yarn and two wrapping yarns wrapped around it, and the three types of cut pile yarns 11-1, 11-2, and 12 that make up the piled portion 10 are derived from the outer wrapping yarn, inner wrapping yarn, and core yarn of the unreeled double-covered yarn, respectively. This embodiment (hereinafter also referred to as "embodiment 2") can be achieved by unreeling a double-covered yarn. Of the three types of cut piles 11-1, 11-2, and 12 that are erected from the same base 14 in the piled fabric of this embodiment, the cut pile yarn 11-1 with the longest pile length is derived from the outer wrapping yarn of the unreeled double-covered yarn, the cut pile yarn 11-2 with the second longest pile length is derived from the inner wrapping yarn, and the cut pile yarn 12 with the shortest pile length is derived from the core yarn. In addition, in the unreeled covering yarn 13, it is preferable that the inner wrapping yarn and the outer wrapping yarn are wound in opposite directions.

[0039] <Method for manufacturing pile fabric> The piled fabric of the present invention can be produced, for example, by a process of preparing a covering yarn including a core yarn and one or more wrapping yarns wound around the core yarn (hereinafter also referred to as a "covering yarn preparation process"); The cut pile fabric can be produced by a method including a step of implanting the covering yarn into a base fabric to produce a cut pile fabric including a piled portion composed of the covering yarn (hereinafter also referred to as the "cut pile fabric production step"), and a step of unwinding the covering yarn that constitutes the piled portion of the cut pile fabric to produce a piled portion composed of two or more types of cut pile yarns with different pile lengths (hereinafter also referred to as the "pile portion production step").

[0040] (Covering thread preparation process) The piled fabric of the present invention can be produced using a covering yarn that includes a core yarn and one or more wrapping yarns wound around it, with at least the outermost wrapping yarn being unwindable. By unwinding the wrapping yarn of the covering yarn, the piled fabric of the present invention can be formed, in which two or more cut pile yarns standing from the same base are erected. The covering yarn used in the present invention can be produced from conventionally known materials and by conventionally known methods, as long as the two or more cut pile yarns standing from the same base have the above-mentioned pile length ratio when unwound after fabric formation. For example, by appropriately selecting the configuration of the covering yarn, such as the fineness of the constituent fibers, the number of coverings, and the winding direction of the wrapping yarn, the unwindability of the covering yarn can be controlled to produce a piled fabric with the desired pile configuration. Note that in the covering yarn that can be used to produce the piled fabric of the present invention, the core yarn does not necessarily need to be completely covered by the wrapping yarn. This is because the purpose of the conventional covering yarn, such as protecting the core yarn, does not exist in the present invention.

[0041] In the covering yarn used to produce the piled fabric of the present invention, the ratio of the length of the outermost wrapping yarn to the length of the core yarn is preferably 1.10 to 1.50. When the length ratio of the core yarn to the outer wrapping yarn in the covering yarn is within this range, the ratio of the pile length of the longest cut pile yarn to the pile length of the shortest cut pile yarn among two or more types of cut pile yarns erected from the same base after the wrapping yarn is unwound can be controlled within the specified range. This is also advantageous in that it makes it easier to unwind the covering yarn. The ratio can be determined appropriately depending on the pile length of the cut pile yarn in the final piled fabric desired, but from the perspectives of ease of unwinding the wrapping yarn and easier production of a piled fabric with a sufficient pile length difference, it is more preferably 1.15 to 1.45, even more preferably 1.25 to 1.40.

[0042] The length ratio of the core yarn and the wrapping yarn that make up the covering yarn is calculated by measuring the lengths of the core yarn and the wrapping yarn of one covering yarn, respectively. The lengths of the core yarn and the wrapping yarn in the covering yarn can be measured, for example, by cutting the covering yarn to be measured to a predetermined length, unwinding the covering yarn so as not to apply excessive tension, and applying a certain tension (for example, a tensile tension of 2 cN or less) to the yarn to be measured. In detail, the measurement can be performed according to the method described in the Examples below.

[0043] The ratio of the length of the wrapping yarn to the length of the core yarn can be adjusted, for example, by appropriately selecting the fineness of the core yarn, the fineness of the wrapping yarn, and the number of coverings of the wrapping yarn (the number of turns of the wrapping yarn per meter of covering yarn). An example of a method for adjusting the ratio will be described using the case of producing a single-covered yarn as an example. FIG. 9 shows a schematic diagram illustrating the arrangement of a core yarn 42 and a wrapping yarn 43. The left side of FIG. 9 is a schematic cross-sectional view of a single-covered yarn 41 cut perpendicular to its longitudinal direction. The center of FIG. 9 is a schematic diagram of a wrapping yarn 43 (ends A and B) wound once around the core yarn 42 at a helix angle θ1 (radians), and the right side of FIG. 9 is a schematic diagram of the wrapping yarn before the wrapping yarn 43 (ends A' and B') is wound around the core yarn 42 at the helix angle θ1. Note that in FIG. 9 and FIGS. 11 and 12 (described later), the dimensions and ratios of the components have been appropriately changed to make the drawings easier to understand. The line segment A'C corresponds to (diameter of the winding yarn 43 + diameter of the core yarn 42 + diameter of the winding yarn 43) × π, and the line segment B'C corresponds to 1 / T (T [t / m] is the covering number of the winding yarn 43), so tan θ1 is expressed by the following formula. tan θ1=(1 / T) / {(diameter of the winding yarn 43+diameter of the core yarn 42+diameter of the winding yarn 43)×π} When the core yarn and wrapping yarn are polyester, the relationship between the polyester fineness and diameter d is generally expressed by the following formula, where 1.38 is used as the specific gravity of polyester. d[μm]=10×(fineness) 1 / 2 In this case, the fineness of the core yarn is D1 (denier), the fineness of the wrapping yarn is D2 (denier), and the number of coverings of the wrapping yarn is T x 10 -6 When the thickness is (t / μm), tan θ1 is expressed by the following formula (1). tanθ1=1 / {T×10 -6 ×(10×D2 1 / 2 +10×D1 1 / 2 +10×D2 1 / 2 )×π} =1 / {10 -5 ×π×T×(D1 1 / 2 +2×D2 1 / 2 )} Formula (1) When the core yarn or wrapping yarn is nylon (specific gravity: 1.14) or olefin (specific gravity: 0.91 to 0.98), the relationship between the fineness and the diameter d is roughly expressed by the following formula: d [μm] = 11 × (fineness) 1 / 2 Or d [μm] = 12 × (fineness) 1 / 2 Therefore, if the core yarn or wrapping yarn is nylon or olefin, these formulas can be expressed as d [μm] = 10 × (fineness) 1 / 2 Even when the core yarn or the wrapping yarn is made of a material other than polyester, nylon, or olefin, the above-mentioned relationship between the fineness and the diameter d is publicly known (for example, as described in the Fiber Handbook compiled by the Fiber Society of Japan), and therefore, this relationship can be applied to the above formula. As is clear from the diagram on the right side of FIG. 9, the ratio of the length of the wrapping yarn 43 to the length of the core yarn 42 is expressed by the following formula. Ratio of the length of the wrapping yarn to the length of the core yarn = (length of line segment A'B') / (length of line segment B'C) =1 / sinθ1 formula (2) From the above formulas (1) and (2), it can be seen that the ratio of the length of the wrapping yarn to the length of the core yarn can be adjusted by the fineness of the core yarn, the fineness of the wrapping yarn, and / or the number of coverings of the wrapping yarn.

[0044] In the left diagram of Figure 9, the core yarn 42 and the wrapping yarn 43 are assumed to be cylindrical and not deformed. However, in reality, the core yarn 42 and the wrapping yarn 43 usually deform from their cylindrical shapes. In particular, when the wrapping yarn 43 is a synthetic multifilament raw silk, it is flattened before being wound. However, the deformation of the diameter of the wrapping yarn 43 is not taken into account in the diagrams in the center and right of Figure 9. However, it has been confirmed that the tan θ or yarn length ratio calculated using Equation (1) and Equation (2) agrees well with the tan θ or yarn length ratio actually measured from the manufactured covered yarn within the range of the covering number shown below. Therefore, Equation (1) and Equation (2) can be used as a guide to determine the covering number or helix angle of the wrapping yarn to obtain a desired yarn length ratio.

[0045] Generally, fabrics are often heat-treated (for example, at a temperature of 100 to 180°C, e.g., about 150°C) after knitting and weaving to develop the bulkiness of the yarns used. When knitting and weaving the piled fabric of the present invention, it is also preferable to heat-treat the fabric after knitting and weaving. Therefore, by determining the ratio of the length of the wrapping yarn to the length of the core yarn in the covering yarn after such heat treatment, it may be possible to evaluate a ratio of the length of the wrapping yarn to the length of the core yarn that is closer to the ratio of the yarn lengths in the actual piled fabric. The ratio of the length of the wrapping yarn to the length of the core yarn in the covering yarn after heat treatment tends to be smaller than the ratio in the covering yarn before heat treatment. Therefore, in one embodiment of the present invention, it may be advantageous to use a covering yarn in which the ratio of the length of at least the outermost wrapping yarn to the length of the core yarn after heat treatment at 150°C for 3 minutes is, for example, 1.10 to 1.50 or 1.15 to 1.45, from the viewpoint of ensuring the desired difference in pile length and unwinding properties. This yarn length ratio after heat treatment can be determined in the same manner as the method for determining the ratio of the length of the wrapping yarn to the length of the core yarn of the covered yarn described above, except that the measurement object is changed from the covered yarn to the covered yarn after heat treatment.

[0046] The ratio of the length of the wrapping yarn to the length of the core yarn in the covered yarn after heat treatment at 150°C for 3 minutes can be controlled by adjusting the configuration of the covered yarn (e.g., the number of coverings, the helix angle of the wrapping yarn) depending on the type, fineness, heat shrinkage rate, etc. of the core yarn and wrapping yarn used in the covered yarn. By measuring the heat shrinkage rates of the core yarn and wrapping yarn before and after heat treatment under the heat treatment conditions when producing a piled fabric in advance, it is possible to more accurately determine the target setting value (the number of coverings of the wrapping yarn) of the covered yarn production device to obtain the desired yarn length ratio after heat treatment under the specified conditions.

[0047] The diameter of the covering yarn depends greatly on the fineness of the core yarn, the fineness of the wrapping yarn, and the number of wrapping yarns. From the viewpoint of the standing property of the pile yarn, the diameter of the covering yarn is preferably 200 μm or more (e.g., 220 μm or more, 240 μm or more, or 250 μm or more). Although there are no particular upper limits for the diameter of the covering yarn, from the viewpoint of knitting and weaving properties, it is preferably 350 μm or less (e.g., 330 μm or less, 310 μm or less, or 300 μm or less). The diameter of the covering yarn can be determined, for example, based on an image of the covering yarn taken under magnification using a digital microscope.

[0048] [Winding thread] For all wrapping yarns, the breaking strength of each wrapping yarn is, for example, preferably 1.6 cN / dtex or more, more preferably more than 2.5 cN / dtex, even more preferably 3.0 cN / dtex or more, and particularly preferably 3.3 cN / dtex or more. If the breaking strength of the wrapping yarn is above the lower limit, it is possible to prevent some of the fibers constituting the cut pile yarn from falling off when the covering yarn is unwound and / or the cut pile yarn is opened. There is no particular upper limit to the breaking strength of the wrapping yarn, but it is usually 7.0 cN / dtex or less. The breaking strength of the wrapping yarn can be measured in accordance with JIS L1013:2021.

[0049] The single fiber fineness of the outermost wrapping yarn is 3 dtex to 50 dtex, preferably 4 dtex to 40 dtex, and more preferably 5 dtex to 30 dtex. The single fiber fineness of the wrapping yarns other than the outermost wrapping yarn and the core yarn is preferably 1 dtex to 20 dtex, more preferably 2.5 dtex to 15 dtex, even more preferably 3 dtex to 12 dtex, and particularly preferably 3 dtex to 9 dtex. By forming a piled fabric from covering yarns using wrapping yarns and core yarns each having such single fiber finenesses, the resulting piled fabric is highly elastic, has good body, and is less likely to wear out during use.

[0050] The fineness of each wrapping yarn is preferably 100 to 600 dtex, more preferably 105 to 500 dtex, even more preferably 105 to 400 dtex, and particularly preferably 105 to 350 dtex. When the fineness of the wrapping yarn is within this range, the cut pile yarns obtained after unwinding have excellent standability, and a piled portion with a sufficient difference in pile length can be formed. The fineness of the wrapping yarn can be measured in accordance with JIS L1013:2021.

[0051] The outermost wrapping yarn of the covering yarn is synthetic multifilament raw silk or spun yarn, which normally has no torque, but can be made to generate torque by additional twisting.

[0052] In the production of the piled fabric of the present invention, it is preferable to use a covering yarn in which the outermost wrapping yarn has torque and the wrapping yarn is wound around the core yarn in the opposite direction to the torque. Here, "wound in the opposite direction to the torque of the wrapping yarn" means that if the torque of the wrapping yarn is in the S direction, the wrapping yarn is wound in the Z direction, and if the torque of the wrapping yarn is in the Z direction, the wrapping yarn is wound in the S direction. This configuration allows the outermost wrapping yarn to be unwound as desired. On the other hand, if the wrapping yarn is wound in the same direction as the torque, it generally tends to be difficult to unwind the wrapping yarn.

[0053] The inventors also discovered that the greater the torque of the wrapping yarn wound in the opposite direction to the winding yarn itself, the more secure the unwinding performance of the wrapping yarn can be, even when the number of coverings of the wrapping yarn is set to a high value. Since an increase in the number of coverings increases the ratio of the length of the wrapping yarn to the length of the core yarn, the greater the torque of the wrapping yarn wound in the opposite direction to the winding yarn itself, the greater the ratio of the length of the wrapping yarn to the length of the core yarn can be while still ensuring the unwinding performance of the wrapping yarn. From this perspective, the torque is preferably 30 t / m or more, more preferably 50 t / m or more, even more preferably 60 t / m or more, and particularly preferably 80 t / m or more. From the viewpoints of preventing the occurrence of billets (snarls) and ease of handling, the upper limit of the torque is preferably 120 t / m or less, more preferably 110 t / m or less, and even more preferably 100 t / m or less. The torque in the present invention can be measured by the method described in the Examples below.

[0054] In one embodiment of the present invention, the raised fabric is formed using single covered yarns.

[0055] In another embodiment of the present invention, the piled fabric is formed using double-covered yarn. Furthermore, by changing the configuration of the double-covered yarn as follows, piled fabrics of various types can be obtained. For example, by using a double-covered yarn in which the inner wrapping yarn is wound in the opposite direction to its own torque, the inner wrapping yarn as well as the outer wrapping yarn can be unwound as desired, thereby producing a piled fabric in which three types of cut pile yarns with different pile lengths are erected from the same base.

[0056] Double-covered yarns, in which the inner and outer wrapping yarns are wound in opposite directions, can be handled without burrs, which is particularly desirable in designs intended to unwind both the outer and inner wrapping yarns.

[0057] In the present invention, when synthetic multifilament raw silk is used as the wrapping yarn, it is necessary to generate torque because the synthetic multifilament raw silk does not have torque. Similarly, when dyed false-twisted yarn or spun yarn is used, the original torque of these yarns may be thermally fixed by the heat during the dyeing process, resulting in essentially no torque. Therefore, when synthetic multifilament raw silk, dyed false-twisted yarn, or spun yarn is used as the covering yarn, it is necessary to perform additional twisting to generate torque. In this case, the direction in which torque is generated is opposite to the direction of additional twisting. That is, when twisted in the Z direction, torque in the S direction is generated. In the present invention, when unwinding the wrapping yarn is intended, it is preferable to wind it in the direction opposite to the torque of the wrapping yarn. Therefore, when twisted to generate torque, a wrapping yarn wound in the same direction as the twist direction is easily unwound. In addition, when synthetic multifilament raw silk, which does not originally have torque, is wound alone or as a two-ply yarn, it can be wound in the twist direction.

[0058] In one embodiment of the present invention, for a wrapping yarn when a single covering yarn is used to produce a piled fabric, or for an inner wrapping yarn when a double covering yarn is used, the fineness D1 of the core yarn, the fineness D2 of the wrapping yarn, and the covering number T1 of the wrapping yarn satisfy the following relationship: 330dtex≦total fineness<1550dtex、 70≦T1≦550 [Total fineness is D1 + D2] It is preferable that the following relationship be satisfied. The covering number of the wrapping yarn in this specification is a value measured with reference to "Measurement of twist number" described in C.10 of JIS L1095:2010, more specifically, a value measured by the method described in the Examples section below. When the covering yarn satisfies the above relationship, the wrapping yarn in the case of a single-covered yarn or the inner wrapping yarn in the case of a double-covered yarn can be unwound more smoothly.

[0059] In one embodiment of the present invention, when double-covered yarns are used to produce a piled fabric, the fineness D1 of the core yarn, the fineness D2 of the inner wrapping yarn, the fineness D3 of the outer wrapping yarn, and the covering number T2 of the outer wrapping yarn satisfy the following relationship: 450dtex≦total fineness<2000dtex、 70≦T2≦550 [Total fineness is D1 + D2 + D3] When the covering yarn satisfies the above relationship, the outer wrapping yarn in the case of a double covering yarn can be unwound more satisfactorily.

[0060] The preferred helix angle of the wrapping yarn varies depending on the configuration of the covering yarn, and the helix angle of the covering yarn can be determined using a magnified photograph of the covering yarn.

[0061] Alternatively, the diameter of the covering yarn and the distance between adjacent wrapped yarns can be used to determine the diameter. A specific method for determining the diameter (μm) is described below with reference to FIGS. 10 and 11. FIG. 10 shows an image of 11 randomly selected adjacent covering yarns (14 in the figure) taken at 30x magnification using a Keyence Corporation (Model VHX-5000) magnifying glass. For each covering yarn, a set of parallel straight lines 44 is drawn for a representative covering yarn. The distance d1 between the covering yarns is measured at five points (only one point is shown in FIG. 10 for clarity), and the average value is calculated to determine the diameter (μm) of the covering yarn. The 11 diameters are then averaged to determine the diameter (μm) of the covering yarn being measured. Next, four twill lines 45 (dashed lines) are drawn along the wrapping yarn, and the distance 46 (corresponding to the distance between the wrapping yarns) (μm) between adjacent straight lines 45 is measured (only one is shown in FIG. 10 for ease of viewing). These distances are averaged to determine the distance between the wrapping yarns (μm) for that covering yarn. Next, the average of 11 of these distances is calculated to determine the distance between the wrapping yarns (μm) for the covering yarn being measured. Note that while FIG. 10 shows auxiliary lines (straight lines 44-46, etc.) for one covering yarn for ease of viewing, in reality, auxiliary lines are similarly drawn for each of the 11 covering yarns to determine the diameter of the covering yarn and the distance between adjacent wrapping yarns.

[0062] The arrangement of the core yarn and wrapping yarn in a covering yarn can be represented by a schematic diagram showing a parallelogram paper (wrapping yarn) being wound around a cylindrical object (core yarn) at a helix angle θ3 (radians) (see Figure 9). In Figure 11, D and E are the vertices of the parallelogram paper, F is the intersection of a line drawn from vertex E to the side of the parallelogram paper so that angle DFE is a right angle, and G is the intersection of a line drawn from vertex E to the side of the parallelogram paper so that angle DEG is a right angle. As is clear from Figure 11, θ3' corresponds to the helix angle θ3, and therefore sin θ3 can be expressed by the following formula. sinθ3 = (length of line segment EF) / (length of line segment EG) Here, the length of the line segment EG is equal to π × (diameter of the covering thread d2), so sinθ3 = (length of line segment EF) / (πd2) The helix angle θ3 can be calculated by substituting the distance between adjacent wrapping yarns obtained from FIG. 10 as the length of the line segment EF and the diameter of the covering yarn obtained from FIG. 10 as d2.

[0063] The polymer constituting the wrapping yarn is not particularly limited, and the type of polymer constituting the wrapping yarn, as well as the structure, cross-sectional shape, and single fiber fineness of the wrapping yarn, may be the same as those of the cut pile yarn constituting the piled fabric.

[0064] [Coiling yarn] The breaking strength of the core yarn is, for example, preferably 2 cN / dtex or more, more preferably greater than 2 cN / dtex, even more preferably 2.1 cN / dtex or more, particularly preferably 2.5 cN / dtex or more, and particularly preferably 2.7 cN / dtex or more. When the breaking strength of the core yarn is above the lower limit, it is possible to prevent some of the fibers constituting the cut pile yarn from falling off when the covering yarn is unwound and / or the cut pile yarn is opened. This allows for the production of a piled fabric with excellent texture and appearance. There is no particular upper limit to the breaking strength of the core yarn, but it is usually 7.0 cN / dtex or less. The breaking strength of the core yarn can be measured in accordance with JIS L1013:2021, similar to the breaking strength of the wrapping yarn.

[0065] The fineness of the core yarn is preferably 100 to 200 dtex, more preferably 110 to 160 dtex, and even more preferably 110 to 150 dtex. When the fineness of the core yarn is within this range, the cut pile yarn obtained after unwinding has excellent standability and can form a piled portion with a sufficient difference in pile length. The fineness of the core yarn can be measured in accordance with JIS L1013:2021, as with the fineness of the wrapping yarn.

[0066] The core yarn is preferably a false twist yarn in order to provide the down hair function of the animal hair style pile fabric, from the viewpoint of the standing property of the resulting cut pile yarn.

[0067] Furthermore, there are no particular limitations on whether or not the twisted yarn used as the core yarn has torque, and the magnitude of the torque, but from the viewpoint of suppressing the occurrence of rips, it is preferable that the torque be 20 t / m or less, more preferably 10 t / m or less, and even more preferably 7 t / m or less, or that the yarn have no torque at all.

[0068] When the fibers constituting the core yarn are synthetic fibers, the polymers are not particularly limited. The type of polymer constituting the core yarn, as well as the configuration, cross-sectional shape, and single fiber fineness of the core yarn, may be the same as those of the cut pile yarn constituting the pile fabric.

[0069] [Covering yarn manufacturing method] The covered yarn described above can be produced by a method known in the art using a production apparatus known in the art, such as the one shown in the schematic diagram of Figure 12. One example of such a method, in the case of a single-covered yarn, is to pass the core yarn fed from a core-yarn cheese through a hollow spindle, rotate a winding yarn bobbin mounted on the hollow spindle, and wind the winding yarn around the core yarn a predetermined number of coverings, and then wind the resulting covered yarn. An example of a production method in which multiple winding yarns are wound is the same as the example of a production method for a single-covered yarn described above, except that multiple winding yarn bobbins mounted on a hollow spindle are present and rotated to sequentially wind the winding yarn around the core yarn a predetermined number of coverings.

[0070] By inputting the fineness of the core yarn and the wrapping yarn and an arbitrary covering number into the above-mentioned formula (1), the helix angle θ of the wrapping yarn can be calculated. By inputting this into formula (2), the ratio of the length of the wrapping yarn to the length of the core yarn can be determined, making it possible to produce a covered yarn having a desired ratio of the length of the wrapping yarn to the length of the core yarn. The fine adjustment of the covering number described above is necessary when the set covering number and the actually measured covering number differ. For example, if the actually measured covering number is slightly smaller than the set covering number, the set covering number can be slightly increased to obtain the desired yarn length ratio.

[0071] (Cut pile fabric manufacturing process) In the cut pile fabric production process, the covering yarn prepared in the covering yarn preparation process is used in a manufacturing apparatus known in the art, such as a seal rib knitting machine, a double velvet loom, a tricot knitting machine, a Russell knitting machine, or a tufting machine, to produce a cut pile fabric by a method known in the art.

[0072] (Nap production process) Next, the covering yarn that constitutes the piled portion of the cut pile fabric is unwound. In one embodiment of the present invention, the covering yarn is a single-covering yarn. In another embodiment of the present invention, the covering yarn is a double-covering yarn. By unwinding the covering yarn in the piled portion forming step, it is possible to form a piled portion that is composed of two or more cut pile yarns with different pile lengths, for example, corresponding to the difference in yarn length between the core yarn and the wrapping yarn.

[0073] When the covering yarn is a double-covered yarn, by unwinding both the outer and inner wrapping yarns of the double-covered yarn in the piled portion forming step, a piled fabric can be obtained in which three types of cut pile yarns with different pile lengths are erected from the same base. In this embodiment, the double-covered yarn constituting the cut pile fabric preferably has both the inner and outer wrapping yarns with torque, and each wrapping yarn is wound around the core yarn in the direction opposite to its own torque. With this type of double-covered yarn, both the inner and outer wrapping yarns can be easily unwound.

[0074] The above description is based, in principle, on the relationship when the same type of yarn is used. That is, the difference in the length of the cut pile yarn in the final piled fabric is determined by the difference in the length of the core yarn and the wrapping yarn that make up the covering yarn, as described above, and their unwinding properties, but it can also be controlled by the type of core yarn and / or wrapping yarn. For example, when a piled fabric is produced by unwinding both the outer wrapping yarn and the inner wrapping yarn of a double-covering yarn, depending on the type of core yarn and / or wrapping yarn (e.g., differences in shrinkage rate due to heating), a piled fabric with two different pile length differences may be obtained, or a piled fabric with three different pile length differences may be obtained. When using cut pile yarn that shrinks upon heat treatment, the cut pile length can be set taking this shrinkage into account. With ordinary textured yarn, this design requirement can be determined by the shrinkage rate of the yarn and the feed rate of the pile yarn on the loom.

[0075] The covering yarn can be unwound, for example, by pressing a cardboard cloth against the cut pile fabric and moving it in a predetermined direction (combing the fibers). This method can employ the techniques used in conventional splitting (spreading) in the manufacture of cut pile fabrics. By controlling the needle's penetration depth into the cut pile fabric, the desired winding of the covering yarn that constitutes the cut pile yarn can be unwound. The needle's penetration depth can be determined appropriately depending on the configuration of the cut pile fabric to be unwound. However, if the needle penetrates too deeply, the pile yarn may come out of the ground weave during the splitting operation. Therefore, in the present invention, the pile yarn up to about 4 mm from the base does not need to be unwound. There are no particular restrictions on the cardboard cloth used, and those used in conventional splitting processes can be used. Depending on the unwinding conditions, conventional splitting (spreading) can be performed simultaneously. By appropriately selecting the winding direction and number of coverings of the covering yarn that constitutes the cut pile yarn of the piled portion, the desired wrapped yarn can be easily unwound. In addition, since the covering yarn can be unwound uniformly over the entire desired area, a uniform piled portion can be formed.

[0076] The piled surface of the resulting piled fabric is preferably subjected to a polisher process in which the fabric is passed alternately twice in the forward and reverse directions at a surface temperature of 175 to 200°C to straighten out the crimp of the pile yarns and at the same time to give them a gloss, and then a process that can be applied to ordinary piled fabrics, such as a backing process, is preferably performed.

[0077] In the present invention, the cut pile yarns constituting the piled portions of the piled fabric usually exhibit the same physical properties and characteristics (specifically, for example, fineness, breaking strength, crimp elongation, and torque) as the core yarns or wrapping yarns of the covering yarns from which the cut pile yarns are derived. Therefore, the preferred physical properties and characteristics of the cut pile yarns constituting the piled portions of the piled fabric of the present invention are the same as those described above as the physical properties and characteristics possessed by the core yarns or wrapping yarns of the covering yarns from which they are derived.

[0078] The piled fabric of the present invention can be produced by forming the piled portion with a covering yarn and then unwinding it, so that a piled fabric satisfying the required configuration can be easily obtained without depending on the settings of the manufacturing equipment for the long pile length of the cut pile yarn. Furthermore, since the difference in pile length of the cut pile yarn can be easily controlled, a piled fabric having a specific difference in pile length can be efficiently produced using a general manufacturing equipment. [Example]

[0079] The present invention will be described in detail below with reference to examples, but the scope of the present invention is not limited to these examples. The methods for measuring the physical properties of the core yarn, wrapping yarn, and covering yarn are described below. However, the physical properties and measurements (or physical property values ​​and measured values) described in this specification, including the examples, are based on values ​​determined by the following methods.

[0080] <Single fiber fineness / fineness> The single fiber fineness and fineness of each yarn were measured in accordance with JIS L1013: 2021. Measurements were made for 5 yarns, and the average value was taken as the fineness of the yarn.

[0081] <150℃ dry heat shrinkage rate: Dsr150> A sample was wound 10 times using a 1 m skein winder. The upper part of the wound sample was fixed, and a load of 0.001 g / d was applied to the wound sample. The length of the sample was measured with the load applied, and this was designated L0. Next, the sample was immersed in a 150°C thermostatic bath for 3 minutes without load, and the length was measured again under a load of 0.001 g / d, and this was designated L1. The thermal shrinkage Dsr150 was calculated using the following formula. Dsr(%)=(L0-L1) / L0×100

[0082] <Crimp elongation rate> The sample was wound into a 5000 denier (d) skein using a skein winder. The upper part of the wound sample was fixed, and a 10 g load was applied to the wound sample so that a load of 0.001 g / d was applied. With this load applied, the sample was immersed in hot water at 90°C for 30 minutes. The sample was removed from the hot water and dried overnight under no load at room temperature (20°C ± 2°C) and a relative humidity of 65 ± 4%. Under the same conditions, a 10 g load was again applied to the sample. After leaving the sample for 5 minutes, the yarn length (L0 [mm]) was measured with the load still applied. Next, under the same conditions, a 1.0 kg load was applied to the sample so that a load of 0.0001 g / d was applied. After leaving the sample for 30 seconds, the yarn length (L1 [mm]) was measured with the load still applied. The crimp elongation K1 was calculated using the following formula: The crimp elongation was determined by measuring 5 times, and the average value was taken as the crimp elongation of the sample. K1 [%] = {(L1-L0) / L1} × 100

[0083] <torque> A 1-g weight was hung from the center of a 1-m-long sample to generate torque, and the number of twists per 50 cm was measured. This number of twists was converted into the number of twists per meter, and this value was taken as the torque of the sample. When observing the rotation of the weight from above, the direction of torque was defined as the Z direction when it was clockwise and the S direction when it was counterclockwise. For example, if the torque direction was the Z direction and the number of twists per meter was 10 t / m, the torque would be expressed as Z10 t / m.

[0084] <Number of coverings of winding thread> Measurement was carried out with reference to "Measurement of twist number" described in C.10 of JIS L1095:2010. The gripping distance of the twist detector was set to 250 mm ± 0.5 mm (i.e., this distance was the sample length), and the covered yarn (sample) to be measured was set in place. If the core yarn of the covered yarn was untwisted, the core yarn would be twisted as the untwisting progressed, causing the entire covered yarn to begin shrinking. One of the non-rotating gripping parts was designed to be movable in the longitudinal direction of the sample so that measurements could be made even when the yarn shrunk. Furthermore, if the covered yarn was a double-covered yarn, after measuring the number of coverings of the outer wrapped yarn, the rotation counter was rotated in the opposite direction to return it to its original position. The number of coverings of the inner wrapped yarn was then measured in the same way as the number of coverings of the outer wrapped yarn. Five measurements were made, and the average was calculated. This was then converted to the number of rotations per meter to determine the number of coverings of the wrapped yarn. For example, if the wrapping direction is Z and the number of rotations per meter is 10 t / m, the number of coverings is expressed as Z10t / m.

[0085] <Length of covering yarn, ratio and difference of length of wrapping yarn to length of core yarn> A 300 mm long covering yarn to be measured was placed on a mount, and both ends of the sample were fixed to the mount with adhesive tape so that the sample length was 200 mm and a tensile force of 2 cN or less was not applied. Next, the sample was cut using a cutter at the boundary between one of the adhesive tapes and the sample, leaving one end of the sample as the free end. The free end was pinched and the wrapped yarns were carefully unwound (starting with the outermost wrapped yarn if multiple wrapped yarns were present) so that a tensile force of 2 cN or less was not applied. The yarn lengths of the wrapped yarn and core yarn were measured using a ruler with a minimum division of 1 mm while applying a tensile force of 2 cN. Five measurements were taken, and the average was used as the yarn length for each yarn. The ratio of the wrapped yarn length to the core yarn length was then calculated. The test was conducted at room temperature of 20°C ± 2°C and a relative humidity of 65 ± 4%.

[0086] <Identification of cut pile yarn> A 20cm length was cut out along the warp yarns from the back of the pile fabric to be measured, so as to include approximately three rows of pile yarns in the ground weave. The base of the cut pile yarns, which were restrained by the ground weave, were visually inspected, and the structure of the unreleased covering yarn was traced to identify whether the cut pile yarns originated from the core yarn or one of the wrapped yarns.

[0087] <Cut pile length> A 20cm length was cut along the warp from the back of the piled fabric to be measured, so as to include approximately three rows of pile yarns in the ground weave. The lengths of the long and short cut pile yarns within this range were measured by laying the rows of cut pile yarns on their side and pressing a ruler against them to avoid excessive stretching of the cut pile yarns. Using a ruler with a minimum scale of 1.0mm, the length from the base of each cut pile yarn to its tip was visually read to 1 / 10 of the scale. The lengths of the longest and shortest cut pile yarns erected from the same base were measured, and the ratio of the long cut pile yarn to the short cut pile yarn was calculated for each pair of cut pile yarns erected from the same base. The average of the ratios for all pairs within the measurement range was taken as the pile length ratio. In addition, the lengths of the longest and second longest cut pile yarns erected from the same base were measured, and the difference between these lengths was calculated for each pair of cut pile yarns erected from the same base. The average value of the differences between all pairs within the measurement range was taken as the difference in pile length.

[0088] [Manufacturing pile fabrics] Table 1 shows the types of yarns used to produce the piled fabrics of the Examples and Comparative Examples and their physical properties.

[0089] [Table 1]

[0090] [Example 1] (i) Manufacturing of covering yarn 1 The core yarn was a 165 decitex 48 filament polyester two-stage heater non-torque false-twist yarn (Yarn A in Table 1, single fiber fineness: 3.5 dtex, crimp elongation: 10.6%, Dsr 150°C: 11.8%), and the inner wrapping yarn was a 150 dtex 12 filament polyester synthetic multifilament raw silk with a flat cross section and full dull luster (Yarn B in Table 1, single fiber fineness: 13.3 dtex, Dsr 150°C: 12.0%). These were then doubled and twisted at Z100 t / m. The outer wrapping yarn was a 100 dtex 6 filament of polyester with a flat cross section and a bright luster (Yarn C in Table 1, single fiber fineness: 18.3 dtex, Dsr150℃: 12.8%), which was made into a two-ply yarn and twisted at S100 t / m (torque in the Z direction was generated, Z80 t / m), and then double-covered in the S direction with a covering number of 450 t / m to obtain covered yarn 1 shown in Table 2.

[0091] (ii) Manufacture of moquette fabric A moquette was produced using covering yarn 1 as follows. Covering yarn 1 was wound around a warp beam. The moquette was made using a polyester spun yarn 20 / 2 as the ground warp yarn and a polyester spun yarn 20 / 1 as the weft yarn, with a warp density of 43 threads / inch and a weft density of 40 threads / inch. The pile length (preset length) on the loom was set so that the cut pile length of the highest cut pile yarn in the final finished product would be 25 mm, and a cut pile fabric was woven using covering yarn 1. The resulting fabric was split in the usual way to unwind the wound yarn of the double covering yarn, and then the backside of the fabric was backed with an acrylic resin and hot air dried at 150°C for 3 minutes. It was then polished at 175°C to straighten the guard hairs and align the pile, and finally sheared to obtain a pile-raised fabric. The pile length ratio and pile length difference of the obtained piled fabric are shown in Table 3. The pile length of the cut pile yarns was the longest for the cut pile yarns derived from the outer wrapping yarn, the second longest for the cut pile yarns derived from the inner wrapping yarn, and the shortest for the cut pile yarns derived from the core yarn.

[0092] [Example 2] (i) Manufacturing of covering yarn 2 Covering yarn 2 was obtained in the same manner as in Example 1, except that a 150 dtex 48 filament false-twisted yarn (yarn D in Table 1, single fiber fineness: 3.5 dtex, crimp elongation: 23.6%, Dsr150°C: 20.8%) was used as the core yarn.

[0093] (ii) Manufacture of moquette fabric A piled fabric was produced using covering yarn 2 in the same process as in Example 1. The pile length ratio and pile length difference of the resulting piled fabric are shown in Table 3. The pile length of the cut pile yarns was the longest for the cut pile yarns derived from the outer wrapping yarn, the second longest for the cut pile yarns derived from the inner wrapping yarn, and the shortest for the cut pile yarns derived from the core yarn.

[0094] [Example 3] (i) Production of covering yarn 3 The core yarn was made of yarn B in Table 1, which was made into a two-ply yarn and twisted at Z100 t / m. The outer wrapping yarn was made of yarn C in Table 1, which was made into a two-ply yarn and twisted at S100 t / m (torque in the Z direction was generated, Z80 t / m). Single covering processing was performed in the S direction using the same process as in Example 1 with a covering number of 500 t / m, to produce covered yarn 3.

[0095] (ii) Manufacture of moquette fabric Using covering yarn 3, a piled fabric was produced in the same manner as in Example 1, except that the yarn feed rate was adjusted so that the cut pile length of the highest cut pile yarn was 40 mm. The pile length ratio and pile length difference of the resulting piled fabric are shown in Table 3. The pile length of the cut pile yarns derived from the outer wrapping yarn was the longest, and the cut pile yarn derived from the core yarn was the shortest (second longest).

[0096] [Comparative Example 1] (i) Production of covering yarn 4 Covering yarn 4 was produced in the same manner as in Example 1 except that yarn D shown in Table 1 was used as the outer wrapping yarn.

[0097] (ii) Manufacture of moquette fabric A piled fabric was produced using covering yarn 4 in the same manner as in Example 1, except that the yarn feed rate was adjusted so that the cut pile length of the tallest cut pile yarn was 50 mm. The pile length ratio and pile length difference of the resulting piled fabric are shown in Table 3. The pile length of the cut pile yarns derived from the outer wrapping yarn was the longest, the cut pile yarns derived from the inner wrapping yarn were the second longest, and the cut pile yarns derived from the core yarn were the shortest.

[0098] Comparative Example 2 (i) Production of covering yarn 5 Covering yarn 5 was produced in the same manner as in Example 1, except that yarn A shown in Table 1 was used as the outer wrapping yarn.

[0099] (ii) Manufacture of moquette fabric A piled fabric was produced using covering yarn 5 in the same manner as in Example 1, except that the yarn feed rate was adjusted so that the cut pile length of the tallest cut pile yarn was 50 mm. The pile length ratio and pile length difference of the resulting piled fabric are shown in Table 3. The pile length of the cut pile yarns derived from the outer wrapping yarn was the longest, the cut pile yarns derived from the inner wrapping yarn were the second longest, and the cut pile yarns derived from the core yarn were the shortest.

[0100] Comparative Example 3 (i) Manufacturing of ply-twisted yarn The 100 dtex 6 filaments (yarn C in Table 1) and 150 dtex 12 filaments (yarn B in Table 1) used in the wrapping yarn in Example 1 were aligned and twisted (Z60t / m) to obtain a plied yarn.

[0101] (ii) Manufacture of moquette fabric The plied yarn obtained above was used in place of covering yarn 1, and the yarn feed rate was adjusted so that the cut pile length of the cut pile yarn was 25 mm, but the weaving was carried out at the same weave density as in Example 1. The resulting fabric was subjected to the same finishing process as in Example 1, and a piled fabric was produced using the same process as in Example 1. The pile length ratio and pile length difference of the resulting piled fabric are shown in Table 3. The length of Yarn C was 24.3 mm, and the length of Yarn B was 24.0 mm.

[0102] Comparative Example 4 (i) Manufacturing of twisted single yarn A 100 dtex 6 filament (Yarn C in Table 1) was made into a two-ply yarn and twisted at S60 t / m (torque in the Z direction was generated, Z15 t / m), and a 150 dtex 12 filament (Yarn B in Table 1) was made into a two-ply yarn and twisted at Z60 t / m (torque in the S direction was generated, S24 t / m) to obtain twisted single yarns of Yarn C and Yarn B.

[0103] (ii) Manufacture of moquette fabric Instead of covering yarn 1, the twisted single yarns of yarn C and yarn B obtained above were used, each arranged alternately in the warp direction to form a striped pattern, and the yarn feed rate was adjusted so that the cut pile length of the cut pile yarn was 25 mm, but the weave density was the same as in Example 1. The resulting fabric was finished in the same way as in Example 1, and a piled fabric was obtained according to the same specifications as in Example 1. The pile length ratio and pile length difference of the resulting piled fabric are shown in Table 3. The length of yarn C was 24.3 mm, and the length of yarn B was 21.6 mm.

[0104] [Table 2]

[0105] [Table 3]

[0106] Each cut pile yarn constituting the pile fabrics produced in Examples 1 to 3 and Comparative Examples 1 to 4 has substantially the same physical properties (fineness, crimp elongation, torque) as the core yarn or wrapping yarn of the covering yarn from which it is derived.

[0107] [Evaluation of properties as a raised animal hair fabric] Examples 1 to 3 and Comparative Examples 1 to 4 were evaluated in the uncolored raw state. In Examples 1 and 2 using double covering yarn, the boundary between the guard hairs in the raised pile layer and the down hairs and underfur was clear, and the touch, gloss, the swaying of the hair, the recovery of the hair by stroking, the firmness of the raised pile layer, and the volume were all good, resulting in a pile fabric with a high-quality fur-like appearance.In Example 3 using single covering yarn, the boundary between the covering guard hairs in the raised pile layer and the underfur was clear, and the touch, gloss, the swaying of the hair, the recovery of the hair by stroking, and the firmness of the raised pile layer were all good, but the cut pile length was slightly inferior to Examples 1 and 2 in the volume, but was still sufficient, resulting in a pile fabric with a high-quality fur-like appearance. In contrast, in Comparative Examples 1 and 2, which used the same double-covered yarn, the boundary between the guard hairs of the raised pile layer and the down hairs and undercoat was clear, which is an effect of the method of the present invention, but because false-twisted yarn was used for the guard hairs, the crimp of the false-twisted yarn could not be sufficiently removed in the polishing process, and a slight matte feel could not be eliminated. At this stage, the resulting fabric was far from a fur-like texture. In Comparative Examples 3 and 4, in which no covering technique was used, there was no distinction between the guard hairs and the down hairs, and the appearance was far from being fur-like. [Explanation of symbols]

[0108] 1: Raised fabric 10: Pierrection part 11: Long pile cut pile yarn 11-1: Cut pile yarn with the longest pile length 11-2: Cut pile yarn with the second longest pile length 12: Short pile cut yarn 13: Covering thread 14: Base 15: Thread 20: Ground Organization Department 21: Weft 22: Warp thread 31: Core yarn 32: Inner wrapping thread 33: Outer wrapping thread 41: Single covering thread 42: Core thread 43: Winding thread A: End of the wrapping yarn wound around the core yarn B: End of the wrapping yarn wound around the core yarn A': End of the wrapping yarn before being wound around the core yarn B': End of the wrapping yarn before being wound around the core yarn C: The other vertex of a right triangle with line segment A'B' as the hypotenuse θ1: Helix angle of the winding thread 44: A pair of parallel straight lines sandwiching the covering thread 45: Typical twill line 46: Distance between ridge lines d1: diameter of covering thread φ: angle between straight line 44 and crease line 45 θ2: Helix angle of the winding thread D: Vertex of parallelogram paper E: Vertex of parallelogram paper F: When a straight line is drawn from vertex E to the side of the parallelogram paper so that angle DFE is a right angle, the intersection point of that line and that side G: When a straight line is drawn from vertex E to the edge of the parallelogram paper so that angle DEG is a right angle, the intersection point of that line and that edge θ3: Helix angle of the winding thread θ3': Angle equivalent to the helix angle θ3 of the winding thread DE: The distance between D and E EF: The distance between E and F 47: Double covering thread 48: Core thread 49: Inner wrapping thread 50: Outer wrapping thread 51: Covering yarn manufacturing device 52: Core cheese 53: Hollow spindle for inner winding yarn 54: Hollow spindle belt for inner winding yarn 55: Inner winding bobbin 56: Balloon guide for inner wrapping thread 57: Hollow spindle for outer winding yarn 58: Hollow spindle belt for outer wrapping yarn 59: Bobbin for outer winding thread 60: Balloon guide for outer wrapping thread 61: Covering thread package 62: Roller 63: Guide

Claims

1. A piled fabric with an animal hair look, comprising a ground weave portion and a raised pile portion formed of a plurality of cut pile yarns restrained and erected by the ground weave portion, The piled portion is composed of two or more types of cut pile yarns having different pile lengths, which are derived from one covering yarn that has been at least partially unwound and which are erected from the same base, and of which the cut pile yarn having the longest pile length is at least one selected from synthetic multifilament raw silk and spun yarn, the difference between the pile lengths of the longest and second longest cut pile yarns of the two or more types of cut pile yarns erected from the same base is 1.0 to 20.0 mm, and the ratio of the pile lengths of the longest and shortest cut pile yarns of the two or more types of cut pile yarns erected from the same base is 1.10 to 1.

50.

2. 2. The animal hair-like pile fabric according to claim 1, wherein the structure portion comprises an unreeled covering yarn comprising a core yarn and one or more wrapping yarns wound around the core yarn, and in the pile portion, two or more types of cut pile yarns having different pile lengths are erected from the same base derived from one covering yarn.

3. 2. The animal hair-like pile fabric according to claim 1, wherein the longest cut pile yarn standing from the same base has a single fiber fineness of 3 to 50 dtex, and the shortest cut pile yarn has crimp.

4. 4. A method for producing an animal hair-like pile fabric according to claim 1, comprising the steps of: preparing a covering yarn comprising a core yarn and one or more wrapping yarns wound around the core yarn, the outermost wrapping yarn being wound so as to form a cut pile yarn with the longest pile length when the wrapping yarns are unwound; implanting the covering yarns into a base fabric to produce a cut pile fabric including a pile portion composed of the covering yarns; and unwinding the covering yarns that form the pile portion of the cut pile fabric.

5. 5. The method for producing an animal hair-like pile fabric according to claim 4, wherein the covering yarn is a single-covering yarn or a double-covering yarn.

6. 5. The method for producing an animal hair-like pile fabric according to claim 4, wherein the wrapping yarn of the covering yarn has a torque and is wound in a direction opposite to the torque of the wrapping yarn itself.

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