A method for preparing concave-convex striped sofa fabric based on shrinkable yarn

Abstract

The invention discloses a method for preparing a concave-convex striped sofa fabric based on shrinkage yarn, and belongs to the technical field of functional textiles and post-finishing. The invention uses low-shrinkage polyester as warp yarn, high-shrinkage polyester and low-shrinkage polyester chenille as weft yarns respectively, and divides the low-shrinkage polyester into two groups. The first group of low-shrinkage polyester and high-shrinkage polyester are woven into a plain weave; the low-shrinkage polyester and low-shrinkage polyester chenille are woven into a 2 / 2 weft weight plain weave; the second group of low-shrinkage polyester and a high-shrinkage polyester are not involved in weaving when interlaced; the second group of low-shrinkage polyester and low-shrinkage polyester chenille are woven into a 2 / 4 twill; thereby forming a concave-convex striped sofa fabric. Afterwards, the concave-convex striped sofa fabric of the invention is post-finished. The concave-convex striped sofa fabric after finishing in the invention has permanent convex patterns, which can give the fabric a unique velvety feel and gloss.

Description

Technical Field

[0001] The invention relates to a method for preparing a sofa fabric with concave and convex stripes based on shrinkable yarns, belonging to the technical field of functional textiles and post-finishing. Background Art

[0002] With the development of society and the progress of civilization, people have higher and higher requirements for the quality and style of sofa fabrics. Sofa fabrics are materials used to make sofas. They not only interpret the style and characteristics of sofas, but also directly affect the color and shape of sofas. Therefore, it is particularly urgent to improve the quality and performance of sofa fabrics. Functional sofa fabrics play an increasingly important role in people's daily lives.

[0003] Conventional sofa fabrics are mostly natural fiber or chemical fiber products, such as cotton, linen, wool or synthetic fiber, etc. Among them, pure cotton sofa fabric is a cloth woven with cotton yarn, which has good air permeability, soft feel and natural beauty, but poor elasticity, easy to wrinkle, and not wear-resistant; linen sofa fabric has good air permeability and thermal conductivity, tight and soft texture, simple and natural temperament, relatively wear-resistant, not easy to wrinkle, fade, not pilling, and does not generate static electricity, but the cost is high; chemical fiber sofa fabrics include polyester, acrylic, viscose, rayon, etc. Many chemical fiber fabrics are blended from several components. Chemical fiber fabrics are strong and durable, easy to care for, wrinkle-resistant and iron-free, but may lack the comfort of natural fabrics; flannel sofa fabrics, such as corduroy and suede, have a delicate touch and good color rendering effect, but are prone to static electricity and are relatively expensive.

[0004] Moreover, conventional convex and concave striped fabrics are produced through jacquard weaving, embossing, raising, chemical treatment, and composite processes; among them, jacquard weaving is the use of a jacquard loom to weave a convex and concave stripe effect according to a predetermined pattern and texture; the embossing process is the application of pressure on the surface of the fabric to form an uneven striped texture; the raising process is the use of raising equipment to form a specific texture effect on the surface of the fabric; the chemical treatment is the use of chemical agents to treat the fabric to form concave and convex stripes through chemical action; the composite process is the lamination of fabrics of different materials or textures to form a concave and convex stripe effect; however, these methods have problems such as high cost, complex process, poor durability due to damage to the fabric, and poor uniformity of the concave and convex stripes.

[0005] Therefore, how to use cheap synthetic fibers to prepare sofa fabrics that are comfortable, soft, feathery, not easy to wrinkle, have good tear resistance and have concave and convex stripes is a problem that needs to be solved urgently. Summary of the invention

[0006] [Technical issues]

[0007] It is difficult for conventional sofa fabrics to meet the requirements of low cost, comfort, softness, featheriness, wrinkle resistance and good tear resistance.

[0008] [Technical solution]

[0009] In order to solve the above problems, the present invention uses low shrinkage polyester as warp yarn, high shrinkage polyester and low shrinkage polyester chenille as weft yarn, respectively, and divides low shrinkage polyester into two groups. The first group of low shrinkage polyester and high shrinkage polyester weaving tissue is plain weave; the low shrinkage polyester and low shrinkage polyester chenille weaving tissue is 2 / 2 weft weight plain weave; the second group of low shrinkage polyester and one high shrinkage polyester do not participate in weaving when interweaving; the second group of low shrinkage polyester and low shrinkage polyester chenille weaving tissue is 2 / 4 twill; thus forming a concave-convex striped sofa fabric. Afterwards, the concave-convex striped sofa fabric of the present invention is post-finished to obtain the finished concave-convex striped sofa fabric. The finished concave-convex striped sofa fabric prepared by the present invention has permanent convex patterns, can give the fabric a unique velvety feel and gloss, and has good friction fastness, washing fastness, anti-pilling, wear resistance, wrinkle resistance, tear resistance, etc.

[0010] The first object of the present invention is to provide a method for preparing a concave-convex striped sofa fabric based on shrinkage yarn, wherein the method comprises weaving low-shrinkage polyester as warp yarn, and high-shrinkage polyester and low-shrinkage polyester chenille as weft yarns respectively;

[0011] The steps include:

[0012] The low shrinkage polyester was divided into two groups, the first group had 18 low shrinkage polyesters, and the second group had 56 low shrinkage polyesters;

[0013] The first group of low shrinkage polyester is first woven with a high shrinkage polyester, and then woven with a low shrinkage polyester chenille; then woven with a high shrinkage polyester, and then woven with a low shrinkage polyester chenille, and so on; wherein the weave of the first group of low shrinkage polyester and high shrinkage polyester is a plain weave; the weave of low shrinkage polyester and low shrinkage polyester chenille is a 2 / 2 weft weight plain weave;

[0014] The second group of low shrinkage polyester is interwoven with a high shrinkage polyester without participating in weaving, so that the first high shrinkage polyester crosses the fabric and is then woven with a low shrinkage polyester chenille; then it is interwoven with a high shrinkage polyester without participating in weaving, and is then woven with a low shrinkage polyester chenille; and so on; wherein the weaving structure of the second group of low shrinkage polyester and the low shrinkage polyester chenille is 2 / 4 twill;

[0015] The weaving of the two groups of low-shrinkage polyester, high-shrinkage polyester and low-shrinkage polyester chenille is taken as a cycle, and then the weaving is performed according to the cycle to obtain the concave-convex striped sofa fabric.

[0016] In one embodiment of the present invention, the warp yarn density during weaving is 62.3-68.7 yarns / cm, and the weft yarn density is 22.4-24.6 yarns / cm.

[0017] In one embodiment of the present invention, the low shrinkage polyester is polyester DTY with a specification of 100-200D; the boiling water shrinkage of the low shrinkage polyester is less than 20%.

[0018] In one embodiment of the present invention, the high shrinkage polyester is polyester DTY with a specification of 250-350D, and the boiling water shrinkage of the high shrinkage polyester is 35-45%.

[0019] In one embodiment of the present invention, the specification of the low shrinkage polyester chenille is 6-7 Ne (Ne), and the boiling water shrinkage of the low shrinkage polyester chenille is less than 20%.

[0020] The second object of the present invention is to obtain a sofa fabric with concave-convex stripes by weaving the method described in the present invention.

[0021] In one embodiment of the present invention, the gram weight of the concave-convex striped sofa fabric is 394-456 g / m 2 , the door width is 150-152.2cm.

[0022] The third object of the present invention is to provide a finishing process for a concave-convex striped sofa fabric, comprising the following steps:

[0023] The convex-and-concave striped sofa fabric is subjected to a primary shaping at 155-165° C. and a vehicle speed of 17-19 m / min; then, it is subjected to a softening finishing at 65-75° C. and 28-32 m / min; and then, it is subjected to a secondary shaping at 160-170° C. and a vehicle speed of 18-22 m / min to obtain the finished convex-and-concave striped sofa fabric.

[0024] The fourth objective of the present invention is the finished concave-convex striped sofa fabric prepared by the method of the present invention.

[0025] A fifth objective of the present invention is to use the concave-convex striped sofa fabric and the finished concave-convex striped sofa fabric in home textile products.

[0026] The sixth object of the present invention is to provide a method for making a sofa fabric maintain permanent convex patterns while having a velvety feel, which method uses the concave-convex striped sofa fabric and the finished concave-convex striped sofa fabric described in the present invention.

[0027] The seventh object of the present invention is to provide a method for improving the friction fastness, washing fastness, pilling resistance, abrasion resistance, wrinkle resistance and tear resistance of the concave-convex striped sofa fabric, which adopts the concave-convex striped sofa fabric described in the present invention and the finished concave-convex striped sofa fabric.

[0028] [Beneficial Effects]

[0029] (1) The sofa fabric with concave and convex stripes described in the present invention is prepared by weaving, which has a simple process and does not require complicated operations such as jacquard weaving.

[0030] (2) The concave-convex striped sofa fabric of the present invention does not require a complicated post-finishing process.

[0031] (3) The convex-concave striped sofa fabric prepared by the present invention has permanent convex patterns, which can give the fabric a unique velvety feel and gloss, and has good friction fastness, water washing fastness, anti-pilling, abrasion resistance, wrinkle resistance, tear resistance, etc.

[0032] (4) The convex-concave striped sofa fabric prepared by the present invention adopts high shrinkage polyester, and the polyester does not participate in the weaving of the convex pattern, so that the convexity is natural and permanent.

[0033] (5) The sofa fabric with concave and convex stripes prepared by the present invention has a softer feel and is more comfortable than general fabrics. It is easy to care for and is not easily damaged or deformed during washing and ironing. It is also not easy to wrinkle and is very easy to keep flat.

[0034] (6) The concave-convex striped sofa fabric prepared by the present invention is not easy to wrinkle during use due to its shrinkage and the particularity of the yarn structure, and has strong tear resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is the organizational structure diagram of the weaving of Example 1.

[0036] Figure 2 This is a physical picture of the weaving of Example 1. DETAILED DESCRIPTION

[0037] The preferred embodiments of the present invention are described below. It should be understood that the embodiments are for better explaining the present invention and are not used to limit the present invention.

[0038] The test methods used in the embodiments and comparative examples are as follows:

[0039] Table 1

[0040]

[0041] The raw materials and equipment used in the embodiments and comparative examples are:

[0042] Low shrinkage polyester: polyester DTY, 150D; shrinkage rate is 15%, purchased from Zhejiang Datong Light Textile Co., Ltd.;

[0043] High shrinkage polyester: polyester DTY, 300D; shrinkage rate 35%, purchased from Hangzhou Yongxing Chemical Fiber Co., Ltd.;

[0044] Low shrinkage polyester chenille: 6.5 Ne (English count), shrinkage rate 15%, purchased from Zhejiang Lida Modern Textile Co., Ltd.;

[0045] The equipment used for primary shaping: stenter setting machine XLB, purchased from Wuxi Xinyi Machinery Co., Ltd.;

[0046] The equipment used for secondary shaping: stenter setting machine XLB, purchased from Wuxi Xinyi Machinery Co., Ltd.;

[0047] Equipment used for softening finishing: FR911-180 / 280 open width softening finishing machine, Jiangyin Fengrun Dyeing and Finishing Machinery Co., Ltd.

[0048] Example 1

[0049] A method for preparing a concave-convex striped sofa fabric based on shrinkage yarn, wherein the method comprises weaving low-shrinkage polyester as warp yarn, and high-shrinkage polyester and low-shrinkage polyester chenille as weft yarns respectively;

[0050] The steps include:

[0051] The low shrinkage polyester was divided into two groups, the first group had 18 low shrinkage polyesters, and the second group had 56 low shrinkage polyesters;

[0052] The first group of low shrinkage polyester is first woven with a high shrinkage polyester, and then woven with a low shrinkage polyester chenille; then woven with a high shrinkage polyester, and then woven with a low shrinkage polyester chenille, and so on; wherein the weave of the first group of low shrinkage polyester and high shrinkage polyester is a plain weave; the weave of low shrinkage polyester and low shrinkage polyester chenille is a 2 / 2 weft weight plain weave;

[0053] The second group of low shrinkage polyester is interwoven with a high shrinkage polyester without participating in weaving, so that the first high shrinkage polyester crosses the fabric and is then woven with a low shrinkage polyester chenille; then it is interwoven with a high shrinkage polyester without participating in weaving, and is then woven with a low shrinkage polyester chenille; and so on; wherein the weaving structure of the second group of low shrinkage polyester and the low shrinkage polyester chenille is 2 / 4 twill;

[0054] The warp density is 64 yarns / cm, the weft density is 23 yarns / cm, and the width is 185cm.

[0055] The weaving of the two groups of low-shrinkage polyester, high-shrinkage polyester and low-shrinkage polyester chenille is taken as a cycle, and then the weaving is performed according to the cycle to obtain the concave-convex striped sofa fabric.

[0056] Comparative Example 1

[0057] A method for preparing sofa fabrics, wherein the method comprises weaving with low-shrinkage polyester as warp yarn and high-shrinkage polyester and low-shrinkage polyester chenille as weft yarns respectively;

[0058] The steps include:

[0059] The first group of low shrinkage polyester is first woven with a high shrinkage polyester, and then woven with a low shrinkage polyester chenille; then woven with a high shrinkage polyester, and then woven with a low shrinkage polyester chenille, and so on; wherein the first group of low shrinkage polyester, high shrinkage polyester, and low shrinkage polyester chenille are all plain weaves;

[0060] The second group of low shrinkage polyester is interwoven with a high shrinkage polyester without participating in weaving, so that the first high shrinkage polyester crosses the fabric and is then woven with a low shrinkage polyester chenille; then it is interwoven with a high shrinkage polyester without participating in weaving, and is then woven with a low shrinkage polyester chenille; and so on; wherein the weaving structure of the second group of low shrinkage polyester and the low shrinkage polyester chenille is 2 / 4 twill;

[0061] The warp density is 64 yarns / cm, the weft density is 23 yarns / cm, and the width is 185cm.

[0062] The weaving of the two groups of low shrinkage polyester, high shrinkage polyester and low shrinkage polyester chenille is taken as a cycle, and then the weaving is performed according to the cycle to obtain the sofa fabric.

[0063] Comparative Example 2

[0064] A method for preparing sofa fabrics, wherein the method comprises weaving with low-shrinkage polyester as warp yarn and high-shrinkage polyester and low-shrinkage polyester chenille as weft yarns respectively;

[0065] The steps include:

[0066] The first group of low shrinkage polyester is first woven with a high shrinkage polyester, and then woven with a low shrinkage polyester chenille; then woven with a high shrinkage polyester, and then woven with a low shrinkage polyester chenille, and so on; wherein the weaves of the first group of low shrinkage polyester, high shrinkage polyester, and low shrinkage polyester chenille are all 2 / 2 weft weight plain weaves;

[0067] The second group of low shrinkage polyester is interwoven with a high shrinkage polyester without participating in weaving, so that the first high shrinkage polyester crosses the fabric and is then woven with a low shrinkage polyester chenille; then it is interwoven with a high shrinkage polyester without participating in weaving, and is then woven with a low shrinkage polyester chenille; and so on; wherein the weaving structure of the second group of low shrinkage polyester and the low shrinkage polyester chenille is 2 / 4 twill;

[0068] The warp density is 64 yarns / cm, the weft density is 23 yarns / cm, and the width is 185cm.

[0069] The weaving of the two groups of low shrinkage polyester, high shrinkage polyester and low shrinkage polyester chenille is taken as a cycle, and then the weaving is performed according to the cycle to obtain the sofa fabric.

[0070] Comparative Example 3

[0071] A method for preparing sofa fabrics, wherein the method comprises weaving with low-shrinkage polyester as warp yarn and high-shrinkage polyester and low-shrinkage polyester chenille as weft yarns respectively;

[0072] The steps include:

[0073] The low shrinkage polyester was divided into two groups, the first group had 18 low shrinkage polyesters, and the second group had 56 low shrinkage polyesters;

[0074] The first group of low shrinkage polyester is first woven with a high shrinkage polyester, and then woven with a low shrinkage polyester chenille; then woven with a high shrinkage polyester, and then woven with a low shrinkage polyester chenille, and so on; wherein the weave of the first group of low shrinkage polyester and high shrinkage polyester is a plain weave; the weave of low shrinkage polyester and low shrinkage polyester chenille is a 2 / 2 weft weight plain weave;

[0075] The second group of low shrinkage polyester is interwoven with a high shrinkage polyester without participating in weaving, so that the first high shrinkage polyester crosses the fabric and is then woven with a low shrinkage polyester chenille; then it is interwoven with a high shrinkage polyester without participating in weaving, and is then woven with a low shrinkage polyester chenille; and so on; wherein the weaving structure of the second group of low shrinkage polyester and the low shrinkage polyester chenille is 2 / 2 twill;

[0076] The warp density is 64 yarns / cm, the weft density is 23 yarns / cm, and the width is 185cm.

[0077] The weaving of the two groups of low shrinkage polyester, high shrinkage polyester and low shrinkage polyester chenille is taken as a cycle, and then the weaving is performed according to the cycle to obtain the sofa fabric.

[0078] Comparative Example 4

[0079] A method for preparing sofa fabrics, wherein the method comprises weaving with low-shrinkage polyester as warp yarn and high-shrinkage polyester and low-shrinkage polyester chenille as weft yarns respectively;

[0080] The steps include:

[0081] The low shrinkage polyester was divided into two groups, the first group had 18 low shrinkage polyesters, and the second group had 56 low shrinkage polyesters;

[0082] The first group of low shrinkage polyester is first woven with a high shrinkage polyester, and then woven with a low shrinkage polyester chenille; then woven with a high shrinkage polyester, and then woven with a low shrinkage polyester chenille, and so on; wherein the weave of the first group of low shrinkage polyester and high shrinkage polyester is a plain weave; the weave of low shrinkage polyester and low shrinkage polyester chenille is a 2 / 2 weft weight plain weave;

[0083] The second group of low shrinkage polyester is interwoven with a high shrinkage polyester without participating in weaving, so that the first high shrinkage polyester crosses the fabric and is then woven with a low shrinkage polyester chenille; then it is interwoven with a high shrinkage polyester without participating in weaving, and is then woven with a low shrinkage polyester chenille; and so on and so forth; wherein the weaving structure of the second group of low shrinkage polyester and the low shrinkage polyester chenille is 4 / 4 twill;

[0084] The warp density is 64 yarns / cm, the weft density is 23 yarns / cm, and the width is 185cm.

[0085] The weaving of the two groups of low shrinkage polyester, high shrinkage polyester and low shrinkage polyester chenille is taken as a cycle, and then the weaving is performed according to the cycle to obtain the sofa fabric.

[0086] Example 2

[0087] A finishing process for a concave-convex striped sofa fabric comprises the following steps:

[0088] The convex-and-concave striped sofa fabrics woven in Example 1 and Comparative Examples 1-4 were shaped once at 160° C. and a speed of 18 m / min; then softened at 70° C. and 30 m / min; and then shaped twice at 165° C. and a speed of 20 m / min; and the shaped convex-and-concave striped sofa fabrics were obtained.

[0089] Comparative Example 5

[0090] A finishing process for a concave-convex striped sofa fabric comprises the following steps:

[0091] The convex-concave striped sofa fabric woven in Example 1 was softened at 70° C., 30 m / min, loose tension, and a width of 155 cm; and then shaped at 160° C. and a speed of 18 m / min to obtain the finished convex-concave striped sofa fabric.

[0092] Comparative Example 6

[0093] A finishing process for a concave-convex striped sofa fabric comprises the following steps:

[0094] The convex-concave striped sofa fabric woven in Example 1 was softened at 70° C., 30 m / min, loose tension, and a width of 155 cm; then, a primary shaping was performed at 160° C. and a speed of 18 m / min, and a secondary shaping was performed at 165° C. and a speed of 20 m / min; and the convex-concave striped sofa fabric after shaping was obtained.

[0095] The prepared sofa fabric was subjected to performance testing, and the test results are as follows:

[0096] After finishing the sofa fabric of Example 2, the shrinkage line is uniform and has no deviation; the concave-convex texture is obvious, and the yarn hairiness is fluffy; it has good friction fastness, washing fastness, anti-pilling, abrasion resistance, wrinkle resistance, tear resistance, etc.;

[0097] Comparative Example 5: The concave and convex stripes on the sofa fabric after finishing are not obvious;

[0098] The sofa fabric of Comparative Example 6 has concave-convex stripes after finishing, but the hairiness of the chenille yarn is not highlighted and lacks a wooly feel.

[0099] Table 2 shows the performance test results of the fabrics after finishing of the grey cloth prepared in the embodiment and the comparative example. It can be seen from Table 2 that the fabric of Example 1 has permanent convex texture, which can give the fabric a unique velvety feel and gloss, and has good friction fastness, washing fastness, anti-pilling, abrasion resistance, wrinkle resistance, tear resistance, etc.

[0100] Table 2

[0101]

[0102] Comparative Example 7

[0103] The high shrinkage yarn in Example 1 was omitted, and only low shrinkage polyester chenille was used as the weft yarn for weaving.

[0104] The results showed that no bulge could be formed at all.

[0105] Comparative Example 8

[0106] Adjust the post-processing parameters temperature and vehicle speed in Example 2.

[0107] The results showed that the finishing temperature and vehicle speed would affect the obviousness of the ridges and the fluffiness of the hair.

[0108] Comparative Example 9

[0109] A method for preparing a concave-convex striped sofa fabric, wherein the method comprises weaving with low-shrinkage polyester as warp yarn and high-shrinkage polyester and low-shrinkage polyester chenille as weft yarn respectively;

[0110] The steps include:

[0111] When the shrink polyester is interwoven with a high shrink polyester, it does not participate in weaving, so that the first high shrink polyester crosses the fabric and is then woven with a low shrink polyester chenille; then, when it is interwoven with a high shrink polyester, it does not participate in weaving, and is then woven with a low shrink polyester chenille; and so on and so forth; wherein, the weaving structure of the low shrink polyester and the low shrink polyester chenille is 2 / 4 twill;

[0112] The warp density is 64 yarns / cm, the weft density is 23 yarns / cm, and the width is 185cm.

[0113] The weaving of the low-shrinkage polyester, high-shrinkage polyester and low-shrinkage polyester chenille is taken as a cycle, and then the weaving is performed according to the cycle to obtain the concave-convex striped sofa fabric.

[0114] The results showed that the yarns in the warp direction slipped severely, were not on the same yarn, and the shrinkage strips slipped.

[0115] Comparative Example 10

[0116] In Example 1, “the low-shrinkage polyester is divided into two groups, the first group has 18 low-shrinkage polyesters, and the second group has 56 low-shrinkage polyesters” is adjusted to “the low-shrinkage polyester is divided into two groups, the first group has 28 low-shrinkage polyesters, and the second group has 46 low-shrinkage polyesters”, and the rest remains the same as in Example 1.

[0117] The results showed that the convex lines were not obvious.

[0118] Although the present invention has been disclosed as above in the form of a preferred embodiment, it is not intended to limit the present invention. Anyone familiar with this technology can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the definition of the claims.

Claims

1. A method for preparing a sofa fabric with concave and convex stripes based on shrinkable yarn, characterized in that: The method is to use low shrinkage polyester as warp yarn and high shrinkage polyester and low shrinkage polyester chenille as weft yarns for weaving; The steps include: The low shrinkage polyester was divided into two groups, the first group had 18 low shrinkage polyesters, and the second group had 56 low shrinkage polyesters; The first group of low shrinkage polyester is first woven with a high shrinkage polyester, and then woven with a low shrinkage polyester chenille; then woven with a high shrinkage polyester, and then woven with a low shrinkage polyester chenille, and so on; wherein the weave of the first group of low shrinkage polyester and high shrinkage polyester is a plain weave; the weave of low shrinkage polyester and low shrinkage polyester chenille is a 2 / 2 weft weight plain weave; The second group of low shrinkage polyester is interwoven with a high shrinkage polyester without participating in weaving, so that the first high shrinkage polyester crosses the fabric and is then woven with a low shrinkage polyester chenille; then it is interwoven with a high shrinkage polyester without participating in weaving, and is then woven with a low shrinkage polyester chenille; and so on; wherein the weaving structure of the second group of low shrinkage polyester and the low shrinkage polyester chenille is 2 / 4 twill; The weaving of the two groups of low shrinkage polyester, high shrinkage polyester and low shrinkage polyester chenille is used as a cycle, and then the weaving is performed according to the cycle to obtain a convex-concave striped sofa fabric; Among them, low shrinkage polyester is polyester DTY, with a specification of 100-200D; high shrinkage polyester is polyester DTY, with a specification of 250-350D; and the specification of low shrinkage polyester chenille is 6-7Ne.

2. The method according to claim 1, characterized in that The warp yarn density during weaving is 62.3-68.7 yarns / cm, and the weft yarn density is 22.4-24.6 yarns / cm.

3. The concave-convex striped sofa fabric woven by the method according to claim 1 or 2.

4. The concave-convex striped sofa fabric according to claim 3, characterized in that: The gram weight of the concave and convex striped sofa fabric is 394-456g / m 2 , the door width is 150-152.2cm.

5. A finishing process for a concave-convex striped sofa fabric, characterized in that: The steps include: The convex-and-concave striped sofa fabric according to claim 3 is subjected to a primary shaping at 155-165° C. and a vehicle speed of 17-19 m / min; then softened at 65-75° C. and 28-32 m / min; and then subjected to a secondary shaping at 160-170° C. and a vehicle speed of 18-22 m / min to obtain the finished convex-and-concave striped sofa fabric.

6. The finished concave-convex striped sofa fabric prepared by the method according to claim 5.

7. Use of the concave-convex striped sofa fabric according to claim 3 and the finished concave-convex striped sofa fabric according to claim 6 in home textile products.

8. A method for making a sofa fabric maintain permanent convex texture and have a velvety feel, characterized in that: The concave-convex striped sofa fabric used is the concave-convex striped sofa fabric described in claim 3 or the finished concave-convex striped sofa fabric described in claim 6.

9. A method for improving the friction fastness, washing fastness, pilling resistance, abrasion resistance, wrinkle resistance and tear resistance of a concave-convex striped sofa fabric, characterized in that: The sofa fabric adopts the concave-convex stripes fabric described in claim 3 or the finished concave-convex stripes fabric described in claim 6.

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