Four-way stretch fabric, preparation method thereof and jeans wear

Abstract

The invention discloses a four-way stretch fabric, a preparation method thereof and jeans wear. The four-way stretch fabric is formed by weaving first warp yarn, second warp yarn and weft yarn. Wherein the first warp yarns adopt inelastic yarns, the elasticity of the second warp yarns is greater than that of the first warp yarns, and the weft yarns adopt elastic core-spun yarns; the four-way stretch fabric comprises a fabric body and a fabric edge arranged on the weft edge of the fabric body, the first warp yarns and the second warp yarns in the fabric body are alternately arranged according to the ratio of 1: 1, and the number ratio of the first warp yarns to the second warp yarns in the fabric edge is (1.2-2): 1. By adjusting the arrangement of the warp yarns and the weft yarns in the cloth body and the cloth edge, the four-side elastic fabric with the flat cloth edge is designed. The four-way stretch fabric is soft in hand feeling, good in elasticity and smooth and uniform in selvedge, and can meet the high-standard requirements of consumers on comfort, attractiveness and durability of clothes.

Description

Technical Field

[0001] The present application relates to the field of textile technology, and in particular to a four-way stretch fabric and a preparation method thereof, and denim clothing. Background Art

[0002] With the improvement of people's consumption level and the change of consumption concept, people's requirements for the comfort of denim clothing fabrics are getting higher and higher. Four-way stretch denim fabrics with elasticity in both warp and weft directions have therefore been loved by more and more consumers. However, in the prior art, the fabric edges of four-way stretch fabrics are prone to unevenness due to elastic shrinkage, which is specifically manifested as curling or lotus leaf-shaped fabric edges, which brings great difficulties to dyeing, cutting, sewing and other processes. Furthermore, the appearance and durability of the four-way stretch denim fabrics with the above characteristics are poor. Summary of the invention

[0003] Based on this, it is necessary to provide a four-way stretch fabric with a flat edge and a preparation method thereof, and denim clothing to meet consumers' pursuit of high quality clothing.

[0004] In a first aspect of the present application, a four-way stretch fabric is provided.

[0005] A four-way stretch fabric, woven with a first warp yarn, a second warp yarn and a weft yarn; wherein the first warp yarn is a non-elastic yarn, the second warp yarn is an elastic yarn, the elasticity of the second warp yarn is greater than that of the first warp yarn, and the weft yarn is an elastic core-spun yarn;

[0006] The four-way stretch fabric includes a fabric body and a fabric edge arranged at the weft edge of the fabric body, the first warp yarns and the second warp yarns in the fabric body are alternately arranged in a ratio of 1:1, and the number ratio of the first warp yarns to the second warp yarns in the fabric edge is (1.2~2):1.

[0007] In some embodiments, the second warp yarn is a chemical fiber stretch yarn, the yarn core of the chemical fiber stretch yarn is an elastic filament, and the covering layer of the chemical fiber stretch yarn includes a blended yarn composed of one or more of polyester fiber, nylon fiber, polypropylene fiber, and acrylic fiber.

[0008] In some embodiments, the yarn core of the elastic core-spun yarn is elastic filament, the drafting multiple is 2.5 times to 4.5 times, and the covering layer of the elastic core-spun yarn includes cotton fiber or cotton-containing blended yarn.

[0009] In some embodiments, in the cloth body, the weft yarns and the first warp yarns form a first twill weave, and the weft yarns and the second warp yarns form a second twill weave; and / or

[0010] The weave structure of the selvedge includes one of a plain weave and a double warp weave.

[0011] In some embodiments, the cloth edge includes a first buffer zone, a stabilizing zone and a second buffer zone, the stabilizing zone is located between the first buffer zone and the second buffer zone, and the cloth edge is connected to the cloth body through the first buffer zone; wherein the warp yarn of the stabilizing zone is the first warp yarn, and the warp yarns of the first buffer zone and the second buffer zone are composed of the first warp yarn and the second warp yarn arranged alternately in a ratio of 1:1, and the number of warp yarns of the first buffer zone and the second buffer zone is an even number.

[0012] In some embodiments, the number of the first warp yarns of the stabilizing belt is 3 to 15; and / or

[0013] In the first buffer zone, the number of combinations of the first warp yarns and the second warp yarns is 5 to 17; and / or

[0014] In the second buffer zone, the number of combinations of the first warp yarns and the second warp yarns is 5 to 17 groups.

[0015] In some embodiments, the warp density is 70 to 130 yarns / inch; and / or

[0016] The weft yarn density is 40 to 100 yarns per inch.

[0017] In a second aspect of the present application, a method for preparing the four-way stretch fabric provided in the first aspect is provided.

[0018] A method for preparing a four-way stretch fabric provided in the first aspect of the present application comprises dyeing the first warp yarn and sizing the second warp yarn;

[0019] Weaving the first warp yarn, the second warp yarn and the weft yarn into a grey cloth according to a set weave structure;

[0020] The grey cloth is post-finished, and the post-finishing includes one or more of singeing, desizing, grasping, skewing, and shrinkage prevention.

[0021] In some embodiments, the sizing tank temperature of the sizing treatment is 85°C to 95°C, the sizing speed is 5m / min to 8m / min; the sizing liquid includes 60kg / m 3 ~70kg / m 3 Starch, 40kg / m 3 ~60kg / m 3 PVA and 7g / L~10g / L cationic antistatic agent; and / or

[0022] The rotating drum speed of the plucking process is 6r / min~12r / min, and the plucking needle gripping force is 0.5N~1N; and / or

[0023] The flame temperature of the singeing treatment is 1000° C. to 1200° C., the vehicle speed is 70 m / min to 100 m / min, and only the front side of the grey cloth is singed.

[0024] In a third aspect of the present application, a denim garment is provided, wherein at least a portion of the denim garment is the four-way stretch fabric provided in the first aspect of the present application or the four-way stretch fabric prepared by the preparation method provided in the second aspect of the present application.

[0025] The four-way stretch fabric of the present application adopts the first warp yarn and the second warp yarn with different elasticity, and adjusts the arrangement of the warp yarns in the cloth body and the selvedge to design a four-way stretch fabric with a smooth selvedge and good hand feel. The four-way stretch fabric has a soft hand feel, good elasticity, and a smooth and uniform selvedge, which can meet the high standard requirements of consumers for clothing comfort, beauty, and durability.

[0026] The preparation method of the four-way stretch fabric of the present application adopts the matching pre-treatment, weaving and post-finishing processes, and effectively prevents the first warp yarn and the second warp yarn from being entangled during the weaving process by sizing the second warp yarn. The grey cloth is fleeced to relax the fabric stress, reduce elastic shrinkage, and further improve the flatness of the edge of the four-way stretch fabric. The four-way stretch fabric prepared by the four-way stretch fabric preparation method is light, thin, soft and comfortable to the touch, and has a flat and uniform edge. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0028] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.

[0029] Figure 1 This is the fabric pattern of the four-way stretch fabric provided in Example 1 of the present application.

[0030] Reference numerals

[0031] 100, warp points of the cloth body; 200, warp points of the cloth edge; 300, weft points. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0038] In the description of this application, "several" means more than one, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0040] With the improvement of people's consumption level and the change of consumption concept, people are pursuing the comfort of denim clothing fabrics more and more. Four-way stretch denim fabrics with elasticity in both warp and weft are popular among consumers, but the edges of four-way stretch fabrics are prone to unevenness due to elastic shrinkage, causing the edges to curl or become lotus-shaped, especially light four-way stretch denim. If the edges of the fabrics are curled or lotus-shaped, it will bring great difficulties to dyeing and finishing, and also bring difficulties to cutting and sewing. This application improves the warp yarn of the four-way stretch fabric and obtains a four-way stretch fabric with flat edges through a special fabric body and edge design, which greatly improves the user experience of the four-way stretch fabric.

[0041] In order to more clearly illustrate the structure of the four-way stretch fabric, the four-way stretch fabric will be introduced below with reference to the accompanying drawings.

[0042] See also Figure 1 , Figure 1 The fabric pattern of the four-way stretch fabric provided in one embodiment of the present application. The grid marked with "x" represents the warp point 100 of the fabric body, indicating that the warp yarn floats above the weft yarn in the warp and weft yarns intersecting here; The grid with " represents the warp weave point 200 of the selvedge, indicating that the warp yarns float above the weft yarns in the warp and weft yarns intersecting here; the weft weave point 300 is a blank grid, indicating that the weft yarns float above the warp yarns in the warp and weft yarns intersecting here.

[0043] An embodiment of the present application provides a four-way stretch fabric. The four-way stretch fabric is woven by a first warp yarn, a second warp yarn and a weft yarn. The first warp yarn is made of inelastic yarn, the second warp yarn has a greater elasticity than the first warp yarn, and the weft yarn is made of elastic core-spun yarn. The four-way stretch fabric includes a fabric body and a selvedge arranged at the weft edge of the fabric body. The first warp yarn and the second warp yarn in the fabric body are alternately arranged in a ratio of 1:1. The number ratio of the first warp yarn to the second warp yarn in the selvedge is (1.2~2):1.

[0044] In the present application, the first warp yarn and the second warp yarn are arranged alternately in a ratio of 1:1 in the body of the four-way stretch fabric, which is conducive to obtaining a fabric body with a more uniform and comfortable feel. Increasing the proportion of the first warp yarn with lower elasticity in the edge of the four-way stretch fabric is conducive to improving the flatness of the edge of the four-way stretch fabric. However, excessive use of the first warp yarn will also cause the feel of the four-way stretch fabric to deteriorate and the elasticity to decrease significantly. Controlling the number ratio of the first warp yarn to the second warp yarn to (1.2~2):1 is conducive to obtaining a four-way stretch fabric with both hand feel, high elasticity and relatively flatness.

[0045] In some embodiments, the second warp yarn is a chemical fiber stretch yarn, which is polyester or a blended yarn containing polyester.

[0046] In some embodiments, the specification of the chemical fiber stretch yarn is 20D-110D. The specifications of the chemical fiber stretch yarn include but are not limited to: 20D, 30D, 40D, 50D, 60D, 70D, 80D, 90D, 100D, 110D or other parameters.

[0047] In some embodiments, the yarn count of the first warp yarn is 8S to 32S. The yarn count of the warp yarn includes but is not limited to: 8S, 12S, 16S, 20S, 24S, 28S, 32S or other parameters.

[0048] In some embodiments, the core of the elastic core-spun yarn is elastic filament, and the drafting multiple is 2.5 to 4.5 times. The covering layer of the elastic core-spun yarn is a blended yarn made of polyester fiber and viscose fiber.

[0049] In some embodiments, the yarn count of the elastic core-spun yarn is 8S to 32S. The yarn count of the elastic core-spun yarn includes but is not limited to: 8S, 12S, 16S, 20S, 24S, 28S, 32S or other parameters.

[0050] In some embodiments, the yarn core of the elastic core-spun yarn has a specification of 20D to 110D. The specifications of the yarn core of the elastic core-spun yarn include but are not limited to: 20D, 30D, 40D, 50D, 60D, 70D, 80D, 90D, 100D, 110D or other parameters.

[0051] In some embodiments, in the fabric of the four-way stretch fabric, a first twill weave is formed between the weft yarns and the first warp yarns, and a second twill weave is formed between the weft yarns and the second warp yarns.

[0052] In some embodiments, the first twill weave and the second twill weave are selected from common twill weave structures, such as three-up-one-down, one-up-one-down, four-up-two-down and other twill weaves. The first twill weave and the second twill weave can be the same twill weave. For example, the first twill weave and the second twill weave are both three-up-one-down twill weaves. The first twill weave and the second twill weave can also be different twill weaves, for example, the first twill weave is a three-up-one-down twill weave, and the second twill weave is a one-up-one-down twill weave. By setting different combinations of the first twill weave and the second twill weave, a rich twill texture can be obtained.

[0053] In some embodiments, the weave structure of the selvedge of the four-way stretch fabric includes one of a plain weave and a double warp weave. The weave of the selvedge adopts a weave with the same number of warp and weft floating points on the front and back sides, so that the relaxation stress on the front and back sides of the selvedge can be balanced, thereby improving the curling problem. In addition, since the number of warp and weft floating points is small (1 to 2), the weave structure of the fabric is relatively tight, and the shrinkage resistance of the elastic yarn is large at this time, so the shrinkage amount is small, thereby effectively improving the curling problem of the fabric.

[0054] In some embodiments, the cloth edge includes a first buffer zone, a stabilizing zone, and a second buffer zone. The stabilizing zone is located between the first buffer zone and the second buffer zone, and the cloth edge is connected to the cloth body through the first buffer zone. The warp yarn of the stabilizing zone is the first warp yarn, and the warp yarns of the first buffer zone and the second buffer zone are both formed by alternating the first warp yarn and the second warp yarn in a ratio of 1:1. The number of warp yarns of the first buffer zone and the second buffer zone is an even number.

[0055] The curling problem of the fabric can be alleviated to a certain extent by adjusting the structure of the fabric edge. In order to further improve the curling problem of the fabric, the present application sets the fabric edge as a combination of a first buffer zone, a stabilizing zone and a second buffer zone. This can reduce the number of first warp yarns used while reducing the curling degree of the fabric edge, so as to obtain a four-sided stretch fabric with both comfortable hand feel and smooth fabric edges.

[0056] In some embodiments, the number of first warp yarns of the stabilizing belt is 3 to 15. The first warp yarn is a non-elastic yarn, and by continuously arranging 4 to 12 first warp yarns to form a stabilizing belt, the curling of the selvedge caused by the elastic retraction of the selvedge can be effectively reduced.

[0057] In some of the embodiments, in the first buffer zone, the number of groups of combinations of the first warp yarns and the second warp yarns is 4 to 14 groups.

[0058] In some of the embodiments, in the second buffer zone, the number of combinations of the first warp yarns and the second warp yarns is 14 to 24 groups.

[0059] The number of warp yarns in the first buffer zone and the second buffer zone should not be too many, otherwise it will not be easy for the stabilizing belt to suppress the curling of the edge of the cloth. When the number of the first warp yarn and the second warp yarn in the first buffer zone and the second buffer zone is small, the performance of the edge of the cloth is more easily affected by the stabilizing belt, showing problems such as reduced elasticity and poor hand feel. By controlling the first warp yarn and the second warp yarn to repeat 5 to 17 times, a smooth, comfortable and elastic edge of the cloth can be obtained.

[0060] In some embodiments, the number of warp yarns in the cloth body is 5000 to 9000, and the number of warp yarns in the selvedge is 100 to 200.

[0061] In some embodiments, the warp density is 70 to 130 strands / inch. The warp density includes, but is not limited to, 70 strands / inch, 80 strands / inch, 90 strands / inch, 100 strands / inch, 19 strands / inch, 120 strands / inch, 130 strands / inch or other parameters.

[0062] In some embodiments, the weft density is 40 to 100 strands / inch. The weft density includes but is not limited to 40 strands / inch, 50 strands / inch, 60 strands / inch, 70 strands / inch, 80 strands / inch, 90 strands / inch, 100 strands / inch or other parameters.

[0063] In one embodiment of the present application, a method for preparing the above-mentioned four-way stretch fabric is also provided.

[0064] The preparation method of the four-way stretch fabric includes dyeing the first warp yarn and sizing the second warp yarn. The fabric is woven into grey cloth by threading the heddle reed according to the set fabric edge and fabric body structure. The grey cloth is post-finished, and the post-finishing includes one or more of singeing, desizing, grasping, skewing, and shrinkage prevention.

[0065] In some embodiments, the chemical fiber stretch yarn is prepared by air interlacing texturing technology, wherein the covering layer filaments and the spandex filaments are simultaneously drawn through a certain type of nozzle, and the yarn with rhythmic interlacing points is formed by regular spraying of high-compressed air.

[0066] In some embodiments, before the first warp yarn is piece-dyed and the second warp yarn is sized, the first warp yarn and the second warp yarn are also wound and warped. The first warp yarn and the second warp yarn are respectively wound on two warp beams according to a set length and width by a warping machine.

[0067] In some of the embodiments, the first warp yarns are dyed with indigo dye or sulfur dye.

[0068] In some embodiments, the second warp yarn is sized by dipping in a treatment liquid, the sizing tank temperature is 85°C to 95°C, and the sizing machine speed is 5m / min to 8m / min. The sizing liquid includes starch, PVA, and a cationic antistatic agent. The cationic antistatic agent includes amine salts and quaternary ammonium salt antistatic agents. The concentration of the cationic antistatic agent is 7g / L to 10g / L, and the starch is 60kg / m 3 ~70kg / m 3 , PVA 40kg / m 3 ~60kg / m 3 The addition of antistatic agent can make the yarn sheets after sizing evenly and clearly arranged, which is beneficial to improve the reeding efficiency and effectively prevent the second warp yarn from entanglement during the weaving process.

[0069] In some embodiments, the first warp yarns after piece dyeing are sized in the same sizing manner as the second warp yarns.

[0070] In some embodiments, the warp yarns of the cloth body are drawn in as follows: the first warp yarns are drawn in the 1st, 3rd, 5th and 7th heald frames, and the second warp yarns are drawn in the 2nd, 4th, 6th and 8th heald frames. The warp yarns of the selvedge are drawn in as follows: the first warp yarns are drawn in the 9th heald frame, and the second warp yarns are drawn in the 10th heald frame.

[0071] In some embodiments, a double warp-beam rapier loom is used for weaving, the lower warp is the first warp yarn, the upper warp is the second warp yarn, the heddle reed is inserted according to the designed combination of the cloth edge and the cloth body, and then the creel with the heddle reed inserted is put on the loom for weaving into grey cloth. The weaving speed is 300r / min~400r / min, the number of reed insertions is 4, the back beam height is 2mm~4mm, and the opening time is 305°~315°.

[0072] In some embodiments, the front side of the fabric is singed once, the flame temperature is 1000°C to 1200°C, and the machine speed is 70m / min to 100m / min. The second warp yarn is a chemical fiber stretch yarn, which is not resistant to high temperature, so a lower singeing temperature and a faster machine speed must be set.

[0073] In some embodiments, enzyme desizing is used for desizing, the desizing temperature is 50° C. to 60° C., the treatment time is 2 min to 5 min, and the concentration of the desizing enzyme is 1 g / L to 5 g / L.

[0074] In some embodiments, the grey fabric is fleeced once, the drum speed is 6 r / min to 12 r / min, and the fleece needle gripping force is 0.5 N to 1 N. Fleecing the fabric can relax the fabric stress, reduce elastic retraction, and increase the softness of the fabric.

[0075] In some embodiments, the setting temperature of the tentering is 100° C. to 150° C., and the setting speed is 30 m / min to 45 m / min. The tentering and setting treatment of the fabric is performed in a loose and low-tension state to ensure the appearance of the fabric.

[0076] In some implementation methods: a pre-shrinking machine is used for shrinkage prevention, the moisture content of the fabric is 15% to 20%, the vehicle speed is 15 m / min to 30 m / min, the compression degree of the rubber blanket is 10% to 20%, and the temperature is 100° C. to 150° C.

[0077] In one embodiment of the present application, a denim garment is provided, at least a portion of which is made of the above-mentioned four-way stretch fabric.

[0078] Example 1

[0079] This embodiment provides a four-way stretch fabric.

[0080] The four-way stretch fabric of this embodiment is woven by first warp yarn, second warp yarn and weft yarn. Among them, the first warp yarn is 18S pure cotton yarn dyed with indigo dye, the second warp yarn is chemical fiber stretch yarn prepared by air network deformation processing technology, the covering layer is 75D polyester, and the yarn core is 20D Lycra stretch yarn. The weft yarn is elastic core-spun yarn, the yarn core is 20D Lycra stretch yarn, the draft multiple is 3 times, the covering layer is polyester-viscose blended yarn, and the weft yarn count is 32S.

[0081] The fabric pattern of the four-sided stretch fabric of this embodiment is as follows Figure 1As shown. The warp yarn density is 100 yarns / inch, and the weft yarn density is 70 yarns / inch. In the body of the four-way stretch fabric, the first warp yarn and the second warp yarn are arranged alternately in a ratio of 1:1, the first warp yarn and the weft yarn form a three-up-one-down twill weave, and the second warp yarn and the weft yarn form a one-up-one-down twill weave. The total number of warp yarns in the body of the four-way stretch fabric is 8000. The weave structure of the selvedge adopts a two-up-two-down warp heavy plain weave. The number of warp yarns in the selvedge of the four-way stretch fabric is 64×2. Let A be the first warp yarn and B be the second warp yarn. The first buffer zone of the selvedge is ABAB ABAB ABAB AB, the stabilizing zone is AA AAAA, and the second buffer zone is ABAB ABAB ABAB ABAB ABAB ABAB ABAB ABAB ABAB ABAB, that is, (AB)×7+A×6+(AB)×22.

[0082] The weaving process flow of the four-sided stretch fabric provided in this embodiment is: winding, warping, sizing, drawing-in, weaving, and finishing, wherein the finishing process is single-sided singeing, desizing, grabbing, skewing, and shrinkage prevention.

[0083] The first warp yarn and the second warp yarn are sized, the sizing tank temperature is 90°C, the sizing speed is 6m / min, and the sizing liquid is 70kg / m 3 Starch, 50kg / m 3 PVA and 8g / L dodecyl trimethyl ammonium chloride. Double warp rapier loom is used for weaving, the lower warp is the first warp yarn, the upper warp is the second warp yarn, and the Figure 1 The fabric pattern shown is passed through the reed, and then the creel that has been passed through the reed is put on the loom for weaving into grey cloth. The weaving speed is 300r / min~400r / min, the number of warp reeds is 4, the rear beam height is 3mm, and the opening time is 310°. The grey cloth is post-finished, and the post-finishing process is single-sided singeing, desizing, plucking, pulling and shrinkage prevention. Among them, the front side of the fabric is singed once, the flame temperature is 1100℃, and the speed is 90m / min. Use 3g / L desizing enzyme for desizing, the desizing temperature is 60℃, and the processing time is 3min. The grey cloth is plucking once, the drum speed is 9r / min, and the plucking needle grip is 0.85N. The setting temperature of the tentering is 130℃, and the setting speed is 35m / min. A pre-shrinking machine is used for anti-shrinkage, the moisture content of the fabric is 18%, the speed of the pre-shrinking machine is 22m / min, the compression degree of the rubber blanket is 15%, and the temperature is 120℃.

[0084] Example 2

[0085] The present embodiment provides a four-way stretch fabric. The four-way stretch fabric and the preparation method of the present embodiment are basically the same as those of the first embodiment, except that the number of warp yarns of the first buffer zone, the stabilizing zone and the second buffer zone in the selvedge is changed, and the number of warp yarns of the selvedge of the four-way stretch fabric of the present embodiment is 80×2. The first buffer zone of the selvedge is ABAB ABAB ABABABAB ABAB AB, the stabilizing zone is AA AAAA AAAA, and the second buffer zone is ABAB ABAB ABAB ABAB ABAB ABAB ABAB ABAB ABAB ABAB, that is, (AB)×11+A×10+(AB)×24.

[0086] Comparative Example 1

[0087] This comparative example provides a four-way stretch fabric. The structure and preparation method of the four-way stretch fabric in this comparative example are basically the same as those in Example 1, except that the weave structure of the selvedge adopts a three-up-one-down twill weave.

[0088] Comparative Example 2

[0089] This comparative example provides a four-way stretch fabric. The structure and preparation method of the four-way stretch fabric in this comparative example are basically the same as those in Example 1, except that the selvedge is entirely composed of the first warp yarn.

[0090] Comparative Example 3

[0091] This comparative example provides a four-way stretch fabric. The structure and preparation method of the four-way stretch fabric in this comparative example are basically the same as those in Example 1, except that the first warp yarns and the second warp yarns in the selvedge are arranged alternately in a ratio of 1:1, and the selvedge does not contain a stabilizing belt.

[0092] Comparative Example 4

[0093] This comparative example provides a common four-sided stretch fabric. The common four-sided stretch fabric of this comparative example is composed of a fabric body and does not contain an independent fabric edge design. The structure of the fabric body of the common four-sided stretch fabric of this comparative example and the preparation method of the fabric body are basically the same as those in Example 1.

[0094] Test Case

[0095] The elastic extensibility, elastic growth rate and elastic rebound rate of the fabrics prepared in each embodiment and comparative example were tested according to the method specified in ASTM D3107. The test data are shown in Table 1.

[0096] The gram weight was tested according to the standard of ASTM D3776. The test data is shown in Table 1.

[0097] The flatness of the fabric edges of the embodiments and comparative examples was tested. A 10-meter-long full-width fabric of each embodiment and comparative example was laid flat, and the flounces of the fabric edges of the samples were observed. The appearance of the fabric edges was evaluated according to the severity of the flounces. The evaluation of the flatness of the fabric edges is shown in Table 2.

[0098] Table 1

[0099]

[0100] Table 2

[0101]

[0102] According to the data in Table 1, it can be seen that the four-way stretch fabrics of Examples 1-2 have a thin fabric body and fabric edges, and exhibit excellent elastic extensibility, elastic growth rate, and elastic resilience, and can meet consumers' demand for fabric comfort. According to the data in Table 2, it can be seen that the four-way stretch fabrics of Examples 1-2 do not show flounces in the fabric edge flatness test, while Comparative Examples 1-4 have varying degrees of flounce curling.

[0103] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0104] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0105] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A four-way stretch fabric, characterized in that: The fabric is woven by first warp yarn, second warp yarn and weft yarn; wherein the first warp yarn is inelastic yarn, the second warp yarn is elastic yarn, the elasticity of the second warp yarn is greater than that of the first warp yarn, and the weft yarn is elastic core-spun yarn; The four-way stretch fabric includes a fabric body and a fabric edge arranged at the weft edge of the fabric body, the first warp yarns and the second warp yarns in the fabric body are alternately arranged in a ratio of 1:1, and the number ratio of the first warp yarns to the second warp yarns in the fabric edge is (1.2~2):

1.

2. The four-way stretch fabric according to claim 1, characterized in that: The second warp yarn is a chemical fiber stretch yarn, the yarn core of the chemical fiber stretch yarn is an elastic filament, and the covering layer of the chemical fiber stretch yarn includes a blended yarn composed of one or more of polyester fiber, nylon fiber, polypropylene fiber, and acrylic fiber.

3. The four-way stretch fabric according to claim 1, characterized in that: The yarn core of the elastic core-spun yarn is elastic filament, the drafting multiple is 2.5 times to 4.5 times, and the covering layer of the elastic core-spun yarn is cotton fiber or cotton-containing blended yarn.

4. The four-way stretch fabric according to any one of claims 1 to 3, characterized in that: In the cloth, the weft yarn and the first warp yarn form a first twill weave, and the weft yarn and the second warp yarn form a second twill weave; and / or The weave structure of the selvedge includes one of a plain weave and a double warp weave.

5. The four-way stretch fabric according to claim 1, characterized in that: The cloth edge includes a first buffer zone, a stabilizing zone and a second buffer zone, wherein the stabilizing zone is located between the first buffer zone and the second buffer zone, and the cloth edge is connected to the cloth body through the first buffer zone; wherein the warp yarn of the stabilizing zone is the first warp yarn, and the warp yarns of the first buffer zone and the second buffer zone are composed of the first warp yarn and the second warp yarn arranged alternately in a ratio of 1:1, and the number of warp yarns of the first buffer zone and the second buffer zone is an even number.

6. The four-way stretch fabric according to claim 5, characterized in that: The number of the first warp yarns of the stabilizing belt is 4 to 12; and / or In the first buffer zone, the number of combinations of the first warp yarns and the second warp yarns is 4 to 14; and / or In the second buffer zone, the number of combinations of the first warp yarns and the second warp yarns is 14 to 24.

7. The four-way stretch fabric according to any one of claims 1 to 6, characterized in that: The warp density is 70 to 130 yarns per inch; and / or The weft yarn density is 40 to 100 yarns per inch.

8. A method for preparing the four-way stretch fabric according to any one of claims 1 to 7, characterized in that: Dyeing the first warp yarn and sizing the second warp yarn; Weaving the first warp yarn, the second warp yarn and the weft yarn into a grey cloth according to a set weave structure; The grey cloth is post-finished, and the post-finishing includes one or more of singeing, desizing, grasping, skewing, and shrinkage prevention.

9. The four-way stretch fabric according to claim 8, characterized in that: The sizing tank temperature of the sizing treatment is 85°C to 95°C, the sizing speed is 5m / min to 8m / min; the sizing liquid includes 60kg / m 3 ~70kg / m 3 Starch, 40kg / m 3 ~60kg / m 3 PVA and 7g / L~10g / L cationic antistatic agent; and / or The rotating drum speed of the plucking process is 6r / min~12r / min, and the plucking needle gripping force is 0.5N~1N; and / or The flame temperature of the singeing treatment is 1000° C. to 1200° C., the vehicle speed is 70 m / min to 100 m / min, and only the front side of the grey cloth is singed.

10. A denim garment, characterized in that: At least a part of the denim clothing is made of the four-way stretch fabric described in any one of claims 1 to 7 or the four-way stretch fabric prepared by the preparation method described in any one of claims 8 to 9.

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