Double-sided yarn-dyed jacquard corduroy fabric and production process thereof

Abstract

The application relates to the technical field of textiles, and particularly discloses a double-faced color-weaved large jacquard corduroy fabric and a production process thereof. The double-faced color-weaved large jacquard corduroy fabric is obtained after a corduroy base fabric sequentially undergoes pretreatment, cutting, brushing and singeing. The corduroy base fabric woven by the application has raised weft yarns on both the front and back surfaces, and after the cutting, brushing and singeing treatment, the obtained double-faced color-weaved large jacquard corduroy fabric has pile on both the front and back surfaces, thereby improving the warmth retention performance of the fabric. Meanwhile, compared with the single-faced pile corduroy fabric, the double-faced pile corduroy fabric has a greater thickness under the condition of the same fabric weight, thereby overcoming the limitation of the production process on the fabric thickness.

Description

Technical Field

[0001] This application relates to the field of textile technology, and more specifically, to a double-sided color-woven jacquard corduroy fabric and its production process. Background Technology

[0002] Corduroy fabric is characterized by its soft and thick feel, clear and full pile resembling a lamp wick, and long lifespan. It is commonly used to make clothing, hats, and shoes, and can also be used in furniture decoration. The raw material for corduroy is primarily cotton yarn. Traditional corduroy weaves often employ a double weft structure, with two sets of weft yarns interwoven with one set of warp yarns. One of the two weft yarns is the pile weft yarn, which is cut into pile to form a fluffy texture.

[0003] One related technology involves a yarn-dyed corduroy fabric with a yarn-dyed checkered pattern on its surface. This fabric is obtained by sequentially pre-treating, cutting, brushing, and singeing a corduroy base fabric, which is then woven using a multi-shuttle box loom. The corduroy base fabric has a weave repeat of 8. In this fabric, the ground weave is formed by the interweaving of the base weft yarns A, B, C, and D with the warp yarns; the pile weft yarns a, b, c, and d are interwoven with the warp yarns to form a pile structure; and the weft yarns 1, 2, 3, 4, 5, and 6 are interwoven with the warp yarns to form a break structure. The pile weft yarns a and b are blue, and the pile weft yarns c and d are yellow.

[0004] Regarding the aforementioned technologies, the inventors believe that although the corduroy fabric can present a color-woven checkered pattern on the surface, it is limited by the weaving method of the multi-shuttle box loom, which causes the pile structure to be distributed on the same side of the fabric. After processes such as cutting the pile, the color-woven corduroy fabric obtained only has pile distributed on one side, which is not conducive to fully realizing the warmth retention performance and also limits the thickness of the fabric. Summary of the Invention

[0005] In related technologies, yarn-dyed corduroy fabrics only have pile distributed on one side, which is not conducive to fully realizing the fabric's warmth retention performance and also limits the fabric's thickness. To improve this defect, this application provides a double-sided yarn-dyed jacquard corduroy fabric and its production process.

[0006] In a first aspect, this application provides a double-sided yarn-dyed jacquard corduroy fabric, which adopts the following technical solution: a double-sided yarn-dyed jacquard corduroy fabric, wherein the double-sided yarn-dyed jacquard corduroy fabric is obtained by sequentially pre-treatment, cutting, brushing, and singeing of corduroy base fabric. The corduroy base fabric is woven on a jacquard loom with a set of warp yarns and three sets of weft yarns in a triple weft structure. The three sets of weft yarns are A yarn, B yarn, and C yarn. In the corduroy base fabric, the A yarn and B yarn are interwoven with the warp yarns as pile weft yarns to form a pile structure, and the C yarn is interwoven with the warp yarns as a ground weft yarn to form a ground structure.

[0007] By adopting the above technical solution, this application uses a large jacquard loom for processing, weaving one set of warp yarns and three sets of weft yarns into a corduroy base fabric according to a triple weft structure. The corduroy base fabric obtained in this way has pile weft distributed on both sides. Therefore, after pile cutting, brushing, and singeing treatments, the resulting double-sided yarn-dyed large jacquard corduroy fabric has pile on both sides, improving the fabric's warmth retention. Furthermore, the pile is vertical relative to the fabric surface, and the axial dimension of the pile is much larger than the radial dimension. Therefore, compared to corduroy fabrics with pile on only one side, corduroy fabrics with pile on both sides can have a greater thickness under the same fabric weight, thus overcoming the limitations of production processes on fabric thickness.

[0008] Preferably, the double-sided yarn-dyed jacquard corduroy fabric has jacquard patterns of the same shape woven on both sides. The jacquard pattern is composed of jacquard weave formed by yarn A and jacquard weave formed by yarn B. Yarn A and yarn B are different colors. The jacquard weave formed by yarn A on both sides of the double-sided yarn-dyed jacquard corduroy fabric has complementary shapes, and the jacquard weave formed by yarn B on both sides of the double-sided yarn-dyed jacquard corduroy fabric also has complementary shapes.

[0009] By adopting the above technical solution, this application specifies that yarn A and yarn B have different colors. During the processing on the large jacquard loom, yarn C plays a supporting role in the fabric structure. When yarn A is woven in, it forms a complementary jacquard structure on both sides of the fabric. When yarn B is woven in, it also forms a complementary jacquard structure on both sides of the fabric, ultimately creating jacquard patterns of the same shape but different colors on both sides. Compared with corduroy fabrics in related technologies, the corduroy fabric of this application can not only form patterns, but the patterns can also vary according to the settings of the large jacquard loom, not being limited to stripes or checks, thus providing clothing designers with more choices and ideas. Furthermore, the fabric of this application is not limited to the traditional jacquard pattern only appearing on one side of the fabric; instead, it uses a two-color jacquard weaving method to make the fabric present patterns of different colors but the same shape on both sides, allowing both sides of the fabric to be used as the front side, especially suitable for presenting asymmetrical patterns.

[0010] Preferably, the corduroy base fabric has a weave repeat number of 4-6.

[0011] By adopting the above technical solution, the number of weave repeats for the corduroy base fabric was optimized. Since the fabric processing method of a large jacquard loom involves alternating different weave structures, a defect easily occurs at the weave junctions where the cutting needles cannot pass through. Reducing the number of weave repeats can improve this defect while making the jacquard pattern more delicate.

[0012] Preferably, the C yarn is a modified cotton yarn, which is a cotton yarn with a surface coated with carboxymethyl starch.

[0013] By adopting the above technical solution, C yarn is selected as the modified cotton yarn. By coating the surface of the raw cotton yarn with carboxymethyl starch, a modified cotton yarn with a strength superior to that of the raw cotton yarn can be obtained, thereby enabling C yarn to better withstand the load caused by the pile weft on both sides.

[0014] Preferably, the modified cotton yarn is prepared according to the following method:

[0015] (1) Clean the cotton yarn and then dry it for later use; mix carboxymethyl starch with boiling water and stir to obtain a modified solution;

[0016] (2) Pour the modified liquid into the sizing tank of the warping machine, then perform warping treatment on the dried cotton yarn, and then let the collected yarn stand dry to obtain modified cotton yarn.

[0017] By adopting the above technical solution, carboxymethyl starch has good adhesion to the fibers in cotton yarn and can form a slurry film on the surface of cotton yarn. After the slurry film is cured, it can strengthen the cotton yarn and increase its strength, thus obtaining modified cotton yarn.

[0018] Preferably, in step (1) of preparing the modified cotton yarn, the cotton yarn used is a combed compact spun cotton yarn.

[0019] By adopting the above technical solution, this application prefers combed compact spun cotton yarn as the raw material for preparing modified cotton yarn. Combed compact spun cotton yarn has better mechanical properties than carded compact spun cotton yarn. When the modified cotton yarn prepared by combed compact spun cotton yarn is used as C yarn, the C yarn can better withstand the load caused by the pile weft on both sides.

[0020] Secondly, this application provides a production process for double-sided yarn-dyed jacquard corduroy fabric, using the following technical solution.

[0021] A production process for a double-sided yarn-dyed jacquard corduroy fabric includes the following steps:

[0022] (1) Base fabric weaving: On a large jacquard loom, a set of warp yarns and three sets of weft yarns are woven according to the structure of triple weft structure to obtain corduroy base fabric;

[0023] (2) Pretreatment: The corduroy base fabric is subjected to alkali treatment using alkali treatment solution, and then the corduroy base fabric is dried to obtain the pretreated base fabric; the components of the alkali treatment solution include water and sodium hydroxide;

[0024] (3) Pile cutting: The front and back sides of the pre-treated base fabric are cut on a pile cutting machine to obtain a pile-cut base fabric;

[0025] (4) Brushing: Brushing is performed on both sides of the cut pile base fabric to obtain brushed pile base fabric;

[0026] (5) Singeing: The brushed fabric is washed and dried, and then singeed to obtain a double-sided yarn-dyed jacquard corduroy fabric.

[0027] By adopting the above technical solution, the process of this application first weaves a corduroy base fabric with pile structure on both sides using a large jacquard loom, then performs pretreatment, followed by pile cutting, pile brushing, and singeing on both sides, to obtain a double-sided yarn-dyed large jacquard corduroy fabric. The alkali sizing process in the pretreatment can improve the brittleness of cotton fibers and help reduce skipped stitches during the pile cutting process.

[0028] Preferably, the concentration of sodium hydroxide in the alkali treatment solution is 8-12 g / L.

[0029] By adopting the above technical solution, the concentration of sodium hydroxide was optimized, which helps to improve the effect of alkali rolling and reduce the skipped needle phenomenon in the shearing process.

[0030] Preferably, the composition of the alkali treatment solution further includes a swelling aid, wherein the swelling aid is urea, and the weight ratio of urea to sodium hydroxide is 1:2.

[0031] By adopting the above technical solution, this application adds urea to the alkali-plastering solution and limits the ratio of urea to sodium hydroxide. Urea can increase the swelling of cotton fibers, promote the penetration of alkali solution into cotton fibers, improve the alkali-plastering effect, and help reduce the skipped needle phenomenon in the cutting process.

[0032] Preferably, in step (2) of the production process of the double-sided yarn-dyed jacquard corduroy fabric, the corduroy base fabric is dried to a moisture content of 4-8%.

[0033] By adopting the above technical solution, the moisture content of the corduroy base fabric after drying is optimized, which helps to minimize the skipped stitch phenomenon during the cutting process while saving time.

[0034] In summary, this application has the following beneficial effects:

[0035] 1. The corduroy base fabric woven in this application has pile weft distributed on both sides. After being cut, brushed, and singed, the resulting double-sided yarn-dyed jacquard corduroy fabric has pile on both sides, which improves the warmth retention of the fabric. Moreover, the corduroy fabric with pile on both sides can have a greater thickness under the same fabric weight, thereby overcoming the limitation of the production process on the fabric thickness.

[0036] 2. In this application, the preferred weave repeat number of the corduroy base fabric is 4-6. Since the processing of fabrics on a large jacquard loom is achieved by alternating different weaves, a defect can easily occur at the weave junctions where the cutting needles cannot pass through. By reducing the weave repeat number, this defect can be improved while making the jacquard pattern more delicate.

[0037] 3. The process of this application first weaves a corduroy base fabric with pile structure on both sides using a large jacquard loom, then performs pretreatment, including pile cutting, pile brushing, and singeing on both sides, to obtain a double-sided yarn-dyed large jacquard corduroy fabric. The alkali squeezing process in the pretreatment can improve the brittleness of cotton fibers and help reduce skipped stitches during the pile cutting process. Attached Figure Description

[0038] Figure 1 This is a front fabric structure diagram of an embodiment of this application.

[0039] Figure 2 This is a diagram of the reverse fabric structure according to an embodiment of this application.

[0040] Figure 3 This is a front view of the fabric according to an embodiment of this application.

[0041] Figure 4 This is a reverse side view of the fabric according to an embodiment of this application. Detailed Implementation

[0042] The present application will be further described in detail below with reference to the embodiments, preparation examples and comparative examples. The raw materials involved in the present application can all be obtained commercially.

[0043] Example of preparation of modified cotton yarn

[0044] The following explanation uses Preparation Example 1 as an example.

[0045] Preparation Example 1

[0046] In this preparation example, the modified cotton yarn was prepared according to the following method:

[0047] (1) The cotton yarn is cleaned and then dried at 105℃ to constant weight for later use; carboxymethyl starch is mixed with boiling water and stirred to obtain a modified solution, the mass fraction of carboxymethyl starch in the modified solution is 4%; in this step, the cotton yarn is 21S carded compact spun cotton yarn.

[0048] (2) Pour the modified liquid into the sizing tank of the warping machine, and then warp the dried cotton yarn at a warping machine speed of 100 m / min and a sizing roller speed of 8 r / min. Then, let the collected yarn stand and dry to obtain modified cotton yarn.

[0049] Preparation Example 2

[0050] The difference between this preparation example and preparation example 1 is that the 21S carded compact spun cotton yarn in preparation example 1 is replaced with 21S combed compact spun all-cotton yarn.

[0051] Example

[0052] Examples 1-5

[0053] The following description uses Example 1 as an example.

[0054] Example 1

[0055] In this embodiment, the production process of double-sided yarn-dyed jacquard corduroy fabric includes the following steps:

[0056] (1) Base fabric weaving: On a large jacquard loom, a set of warp yarns and three sets of weft yarns are woven according to the triple weft structure to obtain corduroy base fabric; In this step, the number of weft repeats (or the number of warp repeats) of the corduroy base fabric is 8, the warp yarns are 16S carded compact cotton yarn, and the three sets of weft yarns are A yarn, B yarn and C yarn, where A yarn is 21S dyed carded compact cotton yarn (blue), B yarn is 21S carded compact cotton yarn (white), and C yarn is 21S carded compact cotton yarn; A yarn and B yarn are both used as pile weft yarns, and C yarn is used as bottom weft yarn;

[0057] (2) Pretreatment: The corduroy base fabric is subjected to alkali treatment at 80°C using alkali treatment solution, and then dried at 80°C to obtain a pretreated base fabric with a moisture content of 10%; the alkali treatment solution is a 4g / L sodium hydroxide solution.

[0058] (3) Pile cutting: The front and back sides of the pre-treated base fabric are cut on a pile cutting machine to obtain a pile-cut base fabric;

[0059] (4) Brushing: Brush the front and back sides of the cut pile base fabric, and at the same time humidify it with a steam oven to control the moisture content of the base fabric at 12% ± 2%. After the brushing process, the brushed base fabric is obtained.

[0060] (5) Singeing: The brushed fabric is washed and dried, and then singeed on a copper plate singeing machine. After singeing, a double-sided color-woven jacquard corduroy fabric is obtained.

[0061] As shown in Table 1, the main difference between Examples 1-5 is that the number of weave cycles of the corduroy base fabric is different.

[0062] Table 1. Number of weave cycles in corduroy base fabric

[0063]

[0064] Example 6

[0065] The difference between this embodiment and embodiment 5 is that C yarn is 21S combed compact spun cotton yarn.

[0066] Example 7

[0067] The difference between this embodiment and Embodiment 6 is that C yarn is the modified cotton yarn of Preparation Example 1.

[0068] Example 8

[0069] The difference between this embodiment and Example 7 is that C yarn is the modified cotton yarn of Preparation Example 2.

[0070] Examples 9-12

[0071] As shown in Table 2, the difference between Example 8 and Examples 9-12 is that the concentration of sodium hydroxide in the alkali treatment solution is different.

[0072] Table 2 Sodium hydroxide concentration

[0073] sample Example 8 Example 9 Example 10 Example 11 Example 12 Sodium hydroxide concentration (g / L) 4 6 8 10 12

[0074] Example 13

[0075] The difference between this embodiment and Embodiment 12 is that the components of the alkali treatment solution also include a swelling aid, which is urea, and the weight ratio of urea to sodium hydroxide is 1:2.

[0076] Examples 14-17

[0077] As shown in Table 3, the difference between Implementation 14-17 and Example 13 is that in step (2) of the production process of double-sided yarn-dyed jacquard corduroy fabric, the corduroy base fabric is dried to different moisture contents.

[0078] Table 3 Moisture Content

[0079] sample Example 13 Example 14 Example 15 Example 16 Example 17 Moisture content / % 10 8 6 4 2

[0080] Comparative Example

[0081] Comparative Example 1

[0082] This comparative example provides a yarn-dyed corduroy fabric, which is obtained by sequentially pre-treating, cutting, brushing, and singeing a corduroy base fabric. The corduroy base fabric is woven using a multi-shuttle box loom. The weave repeat number is 8. In this corduroy base fabric, the ground weave is formed by the interweaving of the base weft yarns A, B, C, and D with the warp yarns; the pile weave is formed by the interweaving of the pile weft yarns a, b, c, and d with the warp yarns; and the break weave is formed by the interweaving of the weft yarns 1, 2, 3, 4, 5, and 6 with the warp yarns. The pile weft yarns a and b are blue, and the pile weft yarns c and d are yellow. The pile weft yarns a, b, c, and d are all 21S dyed carded compact cotton yarns. The weft yarns 1, 2, 3, 4, 5, and 6 are 21S carded compact cotton yarns (white), and the warp yarns are 16S carded compact cotton yarns (white).

[0083] The production process of yarn-dyed corduroy fabric includes the following steps:

[0084] (1) Base fabric weaving: The above-mentioned warp and weft yarns are woven on a multi-shuttle box loom to obtain corduroy base fabric;

[0085] (2) Pretreatment: The corduroy base fabric is subjected to alkali treatment at 80°C using alkali treatment solution, and then dried at 80°C to obtain a pretreated base fabric with a moisture content of 10%; the alkali treatment solution is a 4g / L sodium hydroxide solution.

[0086] (3) Pile cutting: The pre-treated base fabric is pile-cut on a pile cutting machine to obtain a pile-cut base fabric;

[0087] (4) Brushing: The cut pile base fabric is brushed and humidified by a steam oven to keep the moisture content of the base fabric at 12% ± 2%. The brushed base fabric is obtained after the brushing process.

[0088] (5) Singeing: The brushed fabric is washed and dried, and then singeed on a copper plate singeing machine. After singeing, the yarn-dyed corduroy fabric is obtained.

[0089] Comparative Example 2

[0090] The difference between this comparative example and Example 1 is that the alkali-pickling solution is replaced with pure water.

[0091] Performance testing methods

[0092] I. Determination of Fabric Thickness and Thermal Insulation Performance

[0093] The fabrics from Example 1 and Comparative Example 1 were used as samples. The weight of both samples, measured according to GB / T 4669-2008 "Textiles - Determination of Mass per Unit Length and Mass per Unit Area of ​​Woven Fabrics", was 280 g. The thickness of the samples was measured according to GB / T 3820 1997 "Textiles and Textile Products - Determination of Thickness". The ratio between the thickness of Example 1 and the thickness of Comparative Example 1 was calculated. This ratio was measured twice more, and the average of the three measurements was taken. The result was 2.14.

[0094] According to GB / T 11048-2018 Determination of thermal and moisture resistance of textiles under steady-state conditions for physiological comfort (evaporative hot plate method), the thermal resistance of the sample was measured. Then, the ratio between the thermal resistance of Example 1 and the thermal resistance of Comparative Example 1 was calculated. The ratio was measured twice more, and the average value of the three measurements was taken. The result was 1.89.

[0095] II. Evaluation of Pile Cutting Effect

[0096] The number of skipped stitches per 100 meters during the production of corduroy fabric is recorded as the skipped stitch rate (unit: times / 100 meters). The skipped stitch rates of Examples 1-17 and Comparative Example 2 are repeatedly counted (each example or comparative example is counted 3 times). The average skipped stitch rate obtained from the 3 counts is calculated and recorded as the average skipped stitch rate. Then, the ratio of the average skipped stitch rate of each example and Comparative Example 2 to the average skipped stitch rate of Example 1 is calculated and recorded as the relative skipped stitch rate. The results are shown in Table 4.

[0097] Table 4 Relative skipped stitch rate

[0098]

[0099]

[0100] III. Mechanical Performance Evaluation

[0101] Referring to GB / T 3916-1997 "Determination of breaking strength and elongation at break of single yarn in packaged textiles", the breaking strength of the cotton yarns used as C yarn in Examples 5-8 was tested respectively. Then, the ratio of the breaking strength measured in Examples 5-8 to the breaking strength measured in Example 5 was calculated, and this ratio was recorded as the relative breaking strength. The results are shown in Table 5.

[0102] Table 5 Relative Fracture Strength

[0103] sample Relative fracture strength / % Example 5 100.0 Example 6 107.2 Example 7 109.5 Example 8 116.6

[0104] Combining the results of Example 1 and Comparative Example 1, and considering the ratio of R values, it can be seen that the R value and thermal resistance value of Example 1 are both greater than those of Comparative Example 1. This indicates that the feature of having pile on both sides improves the warmth retention of corduroy fabric and allows the fabric to have a greater thickness under the same weight condition, overcoming the limitations of the production process on fabric thickness. Furthermore, combining... Figure 1-4 As can be seen, the fabric of this application presents a pattern of different colors and the same shape on both sides, so that both sides of the fabric can be used as the front side and can present an asymmetrical pattern.

[0105] Based on Examples 1-5 and Comparative Example 2, and in conjunction with Table 4, it can be seen that the relative skipped stitch rates measured in Examples 1-5 are all lower than those in Comparative Example 1. Furthermore, the skipped stitch rate decreases as the number of tissue cycles decreases. This indicates that the alkali solution used in the alkali rolling process helps improve the cutting effect, and the reduction of the number of tissue cycles also helps improve the cutting effect and reduces the occurrence of skipped stitches. When the number of tissue cycles is 4-6, the skipped stitch rate is relatively small.

[0106] Combining Examples 5 and 6-8 with Table 5, it can be seen that the breaking strength of combed compact spun cotton yarn is greater than that of carded compact spun cotton yarn. Moreover, carboxymethyl starch has good adhesion to the fibers in the cotton yarn and can form a slurry film on the surface of the cotton yarn. After the slurry film solidifies, it can strengthen the cotton yarn and increase its strength.

[0107] As can be seen from Examples 8-12 and Table 4, increasing the sodium hydroxide concentration helps improve the effect of alkali-rolling processing, reduces skipped stitches during the cutting process, and improves the cutting effect. The decrease in skipped stitch rate is more significant when the sodium hydroxide concentration is 8-12 g / L.

[0108] As can be seen from Examples 13 and 12 and Table 4, urea can increase the swelling degree of cotton fibers, promote the penetration of alkali solution into cotton fibers, improve the alkali quenching effect, help reduce skipped needle phenomenon in the cutting process, and improve the cutting effect.

[0109] As can be seen from Examples 13, 14-17, and Table 4, drying the corduroy base fabric to a moisture content of 2-8% is more effective in reducing skipped stitches during the cutting process and improving the cutting effect. Since drying to 4% already significantly reduces the skipped stitch rate, 4% can be considered as the lower limit of the moisture content after drying when production time is tight.

[0110] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A double-sided yarn-dyed large jacquard corduroy fabric, characterized in that, The double-sided color-woven jacquard corduroy fabric is obtained by pre-treatment, cutting pile on both sides, brushing pile, and singeing of corduroy base fabric. The corduroy base fabric is woven on a jacquard loom with one set of warp yarns and three sets of weft yarns in a triple weft structure. The three sets of weft yarns are A yarn, B yarn, and C yarn. In the corduroy base fabric, A yarn and B yarn are interwoven with the warp yarns as pile weft yarns to form a pile structure, and C yarn is interwoven with the warp yarns as a ground weft yarn to form a ground structure. The double-sided yarn-dyed jacquard corduroy fabric has jacquard patterns of the same shape woven on both sides. The jacquard pattern is composed of jacquard weave formed by yarn A and jacquard weave formed by yarn B. Yarn A and yarn B are different colors. The jacquard weave formed by yarn A on both sides of the double-sided yarn-dyed jacquard corduroy fabric has complementary shapes. The jacquard weave formed by yarn B on both sides of the double-sided yarn-dyed jacquard corduroy fabric also has complementary shapes. The corduroy base fabric has a weave repeat number of 4-6; the C yarn is a modified cotton yarn, which is a cotton yarn with a surface coated with carboxymethyl starch.

2. The double-sided yarn-dyed jacquard corduroy fabric according to claim 1, characterized in that, The modified cotton yarn is prepared according to the following method: (1) Clean the cotton yarn and then dry it for later use; mix carboxymethyl starch with boiling water and stir to obtain a modified solution; (2) Pour the modified liquid into the sizing tank of the warping machine, then perform warping treatment on the dried cotton yarn, and then let the collected yarn stand dry to obtain modified cotton yarn.

3. The double-sided yarn-dyed jacquard corduroy fabric according to claim 2, characterized in that, In step (1) of preparing the modified cotton yarn, the cotton yarn used is a combed compact spun cotton yarn.

4. The production process of double-sided yarn-dyed jacquard corduroy fabric according to any one of claims 1-3, characterized in that, Includes the following steps: (1) Base fabric weaving: On a large jacquard loom, a set of warp yarns and three sets of weft yarns are woven according to the triple weft structure to obtain corduroy base fabric; (2) Pretreatment: The corduroy base fabric is subjected to alkali treatment using alkali treatment solution, and then the corduroy base fabric is dried to obtain the pretreated base fabric; the components of the alkali treatment solution include water and sodium hydroxide; (3) Pile cutting: The front and back sides of the pre-treated base fabric are cut on a pile cutting machine to obtain a pile-cut base fabric; (4) Brushing: Brushing is performed on both sides of the cut pile base fabric to obtain brushed pile base fabric; (5) Singeing: The brushed fabric is washed and dried, and then singeed to obtain a double-sided yarn-dyed jacquard corduroy fabric.

5. The production process of double-sided yarn-dyed jacquard corduroy fabric according to claim 4, characterized in that, The concentration of sodium hydroxide in the alkali treatment solution is 8-12 g / L.

6. The production process of the double-sided yarn-dyed jacquard corduroy fabric according to claim 5, characterized in that, The components of the alkali-pickling treatment solution also include a swelling aid, which is urea, and the weight ratio of urea to sodium hydroxide is 1:

2.

7. The production process of the double-sided yarn-dyed jacquard corduroy fabric according to claim 4, characterized in that, In step (2) of the production process of the double-sided color-woven jacquard corduroy fabric, the corduroy base fabric is dried to a moisture content of 4-8%.

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