Preparation method of large-interval twill jacquard flannel fabric

Abstract

The invention relates to a preparation method of a large-interval twill jacquard flannel fabric, which solves the problems that the fabric woven by machine weaving or weft knitting has defects such as a single twill style, lack of three-dimensionality, easy shrinkage and wrinkling, poor wrinkle resistance, rough hand feel, thinness, and easy yarn skipping. The method comprises the following steps: S1 raw material selection, in which 150D semi-gloss flat yarn and 150D cationic yarn are selected as velvet yarn, and 75D filament is selected as the raw material for a base yarn structure; S2 warping, in which the raw materials in S1 are warped by a warping machine; S3 weaving, in which the warped raw materials in S2 are supplied to a warp knitting machine according to a weaving process to obtain grey cloth and split the fabric; and S4 grey cloth dyeing, finishing, and shaping. The method has the advantages that the wrinkle resistance of the processed fabric is improved, the fabric is not prone to wrinkles after long-term use, and actual market application requirements are met.

Description

Technical Field

[0001] The invention relates to the technical field of textiles, in particular to a method for preparing a large-interval twill jacquard flannel fabric. Background Art

[0002] With the progress of society and the continuous improvement of people's living standards, people's requirements for the comfort, beauty and functionality of clothing are also increasing. Various types of woven fabrics have also emerged to meet people's various needs.

[0003] Patent publication number CN112323242A discloses a method for producing a warp-knitted twill fabric imitating woven gabardine. The method utilizes spun yarn and elastic chemical filament yarn as raw materials, weaving on a 5-bar warp knitting machine. A chain-knitted weave with a missing padding structure and a heavy warp-knitted chain weave as the base structure are used, resulting in a twill-like distribution of stretch lines. This fabric maintains a good twill texture under stress. Using polyester-covered spandex yarn as the ground weave and a heavy warp-knitted flat weave as the ground weave, the fabric exhibits elasticity and a tight retraction, while maintaining a good texture even under both transverse and longitudinal stresses. The finished fabric exhibits a clear texture.

[0004] Currently, most of the twill on fabrics are woven by machine or weft knitting. The twill pattern of fabrics woven by machine or weft knitting is single, not three-dimensional, easy to shrink and wrinkle, and has poor wrinkle resistance. It feels rough, the fabric is thin, and the fabric is prone to yarn skipping and other defects. Summary of the Invention

[0005] The purpose of the present invention is to provide a preparation method of a large-interval twill jacquard flannel fabric, which solves the problems that the fabric woven by weaving or weft knitting has defects such as a single twill style, lack of three-dimensionality, easy shrinkage and wrinkling, poor wrinkle resistance, rough hand feel, thin fabric, and easy yarn skipping.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] The present invention provides a preparation method of a large-interval twill jacquard flannel fabric. The large-interval twill jacquard flannel fabric comprises a velvet yarn structure and a base yarn structure. The mass percentage of the velvet yarn structure in the fabric is 60% to 80%, and the mass percentage of the base yarn structure in the fabric is 20% to 40%. The velvet yarn structure adopts 150D semi-gloss flat yarn and 150D full-dull flat yarn as raw materials. The ratio of the 150D semi-gloss flat yarn to the 150D full-dull flat yarn is 2:1. The base yarn structure adopts 75D filament as the base yarn raw material.

[0008] The preparation method comprises the following steps:

[0009] S1 raw material selection: 150D semi-gloss flat yarn and 150D cationic yarn were selected as the velvet yarn, and 75D filament yarn was selected as the raw material for the base yarn.

[0010] S2 warping, warping the raw materials in S1 through a warping machine;

[0011] S3 weaving, feeding the warped raw material in S2 to a warp knitting machine according to a weaving process to obtain grey fabric and splitting it into pieces;

[0012] The yarn laying numbers of each combing bar during weaving are:

[0013] L1:4-4-4-4-0-0-0-0-3-3-3-3-0-0-0-0 / /

[0014] L2:0-1-1-1 / 1-0-0-0 / /

[0015] L3:0-1-0-1 / 1-0-1-0 / 2-3-2-3 / 3-2-3-2 / 4-5-4-5 / 5-4-5-4 / 6-7-6-7 / 7-6-7-6 / 8-9-8-9 / 9-8 -9-8 / 10-11-10-11 / 11-10-11-10 / 12-13-12-13 / 13-12-13-12 / 14-15-14-15 / 15-14-15-14 / 11

[0016] -12-10-10 / 8-7-5-5 / 3-4-2-2 / 1-0-1-0 / 0-1-0-1 / 3-2-3-2 / 2-3-2-3 / 5-4-5-4 / 4-5-4-5 / 7-6-7-6 / 6-7-6-7 / 9-8-9-8 / 8-9-8-9 / 11-10-11-10 / 10-11-10-11 / 13-12-13-12 / 12-13-12-13 / 15-14-15-14 / 14-15-14-15 / 13-13-12-11 / 9-9-7-8 / 6-6-4-3 /

[0017] L4: 0-1-1-1 / 1-0-0-0 / /

[0018] L5: 4-4-4-4-0-0-0-0-3-3-3-3-0-0-0-0;

[0019] S4 grey fabric dyeing, finishing and shaping. The grey fabric after S3 slitting is sequentially turned over - combed - ironing - pre-shaping - dyeing (printing) - softening - dehydration - drying - napping - combing and shearing - ironing - shaking out - final shaping.

[0020] Furthermore, the pile yarn structure is 150D / 288F semi-gloss flat DTY and 150D / 288F full-dull flat DTY, and the 75D filament is 75D / 36F FDY.

[0021] Furthermore, the warp knitting machine in S3 is a GE-2886 double needle bed warp knitting machine.

[0022] Furthermore, in S3, GB1, GB2, GB4 and GB5 form a base yarn structure, and GB3 forms a pile yarn structure.

[0023] Furthermore, the warping process parameters in S2 are: number of warps: 390-420, warping speed of hair yarn 790-810 r / min, warping speed of bottom yarn 900-1100 r / min, hairiness sensor setting position 1, pressure roller pressure 3-5 kg / cm 2 , curling tension 25~33kg, creel tension 10~15g / root, monofilament 30~35g / root, hardness 48~52.

[0024] Furthermore, the temperature for pre-setting the grey cloth in S4 is 180-250° C. and the time is 25-30 seconds; the temperature for setting the finished product in S4 is 140-160° C. and the time is 35-45 seconds.

[0025] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0026] The invention discloses a method for preparing a large-interval twill jacquard flannel fabric. The fabric manufactured by the preparation method has a large-interval twill jacquard pattern. At the same time, by adopting 150D semi-gloss flat yarn and 150D full-dull flat yarn as velvet yarn and 75D filament as base yarn raw material and processed by the preparation method, the large-interval twill fabric has a clear texture effect and a strong three-dimensional sense. Moreover, by selecting the D number, the thickness and soft hand feel of the fabric can be well increased, and the fabric is not easy to shrink or wrinkle and has good wrinkle resistance. The weaving equipment is a GE-2886 double-needle bed warp knitting machine, and the fabric woven is not prone to defects such as yarn skipping. Therefore, the product processed by the large-interval twill jacquard flannel fabric is soft and close-fitting when used, easily keeps warm, and is comfortable and decent. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0028] Figure 1Schematic diagram of a jacquard flannel fabric with large twill weave and good wrinkle resistance produced by this weaving process in a preferred embodiment of the present invention;

[0029] Figure 2 A schematic diagram of another piece of jacquard flannel fabric with large twill weave and good wrinkle resistance woven by this weaving process in a preferred embodiment of the present invention;

[0030] Figure 3 Schematic diagram of the jacquard flannel fabric with large interval twill having poor wrinkle resistance in Comparative Examples 1-4 of the present invention. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] refer to Figure 1 and Figure 2 , a preparation method of a large-interval twill jacquard flannel fabric provided by the present invention, the large-interval twill jacquard flannel fabric comprising a velvet weave and a base weave, wherein the mass percentage of the velvet weave in the fabric is 60% to 80%, and the mass percentage of the base weave in the fabric is 20% to 40%, the velvet weave adopts 150D semi-gloss flat yarn and 150D full-dull flat yarn as raw materials for the velvet, the ratio of the 150D semi-gloss flat yarn to the 150D full-dull flat yarn is 2:1, and the base weave adopts 75D filament as the base raw material;

[0035] The preparation method comprises the following steps:

[0036] S1 raw material selection: 150D semi-gloss flat yarn and 150D cationic yarn were selected as the velvet yarn, and 75D filament yarn was selected as the raw material for the base yarn.

[0037] S2 warping, warping the raw materials in S1 through a warping machine;

[0038] S3 weaving, feeding the warped raw material in S2 to a warp knitting machine according to a weaving process to obtain grey fabric and splitting it into pieces;

[0039] The yarn laying numbers of each combing bar during weaving are:

[0040] L1:4-4-4-4-0-0-0-0-3-3-3-3-0-0-0-0 / /

[0041] L2:0-1-1-1 / 1-0-0-0 / /

[0042] L3:0-1-0-1 / 1-0-1-0 / 2-3-2-3 / 3-2-3-2 / 4-5-4-5 / 5-4-5-4 / 6-7-6-7 / 7-6-7-6 / 8-9-8-9 / 9-8 -9-8 / 10-11-10-11 / 11-10-11-10 / 12-13-12-13 / 13-12-13-12 / 14-15-14-15 / 15-14-15-14 / 11

[0043] -12-10-10 / 8-7-5-5 / 3-4-2-2 / 1-0-1-0 / 0-1-0-1 / 3-2-3-2 / 2-3-2-3 / 5-4-5-4 / 4-5-4-5 / 7-6-7-6 / 6-7-6-7 / 9-8-9-8 / 8-9-8-9 / 11-10-11-10 / 10-11-10-11 / 13-12-13-12 / 12-13-12-13 / 15-14-15-14 / 14-15-14-15 / 13-13-12-11 / 9-9-7-8 / 6-6-4-3 /

[0044] L4: 0-1-1-1 / 1-0-0-0 / /

[0045] L5: 4-4-4-4-0-0-0-0-3-3-3-3-0-0-0-0;

[0046] S4 grey fabric dyeing, finishing and shaping. The grey fabric after S3 slitting is sequentially turned over - combed - ironing - pre-shaping - dyeing (printing) - softening - dehydration - drying - napping - combing and shearing - ironing - shaking out - final shaping.

[0047] Furthermore, the pile yarn structure is 150D / 288F semi-gloss flat DTY and 150D / 288F full-dull flat DTY, and the 75D filament is 75D / 36F FDY.

[0048] Furthermore, the warp knitting machine in S3 is a GE-2886 double needle bed warp knitting machine.

[0049] Furthermore, in S3, GB1, GB2, GB4 and GB5 form a base yarn structure, and GB3 forms a pile yarn structure.

[0050] Furthermore, the warping process parameters in S2 are: number of warps: 390-420, warping speed of hair yarn 790-810 r / min, warping speed of bottom yarn 900-1100 r / min, hairiness sensor setting position 1, pressure roller pressure 3-5 kg / cm 2 , curling tension 25~33kg, creel tension 10~15g / root, monofilament 30~35g / root, hardness 48~52.

[0051] Furthermore, the temperature for pre-setting the grey cloth in S4 is 180-250° C. and the time is 25-30 seconds; the temperature for setting the finished product in S4 is 140-160° C. and the time is 35-45 seconds.

[0052] Due to the application of the above technical solution, the present invention has the following advantages compared with the existing technology:

[0053] The fabric manufactured by this preparation method has a large-interval twill jacquard pattern. At the same time, by using 150D semi-gloss flat yarn and 150D full-dull flat yarn as velvet yarn and 75D filament as base yarn raw material and processed by this preparation method, the large-interval twill fabric has a clear texture effect and a strong three-dimensional sense. Moreover, through the selection of D number, the thickness and soft feel of the fabric can be greatly increased, and it is not easy to shrink or wrinkle and has good wrinkle resistance. The weaving equipment uses a GE-2886 double-needle bed warp knitting machine, and the fabric woven is not prone to defects such as yarn skipping. Therefore, the products processed from this large-interval twill jacquard flannel fabric are soft and close-fitting when used, easily keep warm, and are comfortable and decent.

[0054] The present invention will be further described below with reference to specific embodiments, but the protection scope of the present invention is not limited thereto:

[0055] Example 1

[0056] The present embodiment provides a method for preparing a large-interval twill jacquard flannel fabric, the large-interval twill jacquard flannel fabric comprising a velvet weave and a ground weave, wherein the velvet weave accounts for 75% by mass of the fabric, and the ground weave accounts for 30% by mass of the fabric. The velvet weave is made of 150D semi-gloss flat yarn and 150D full-dull flat yarn as raw materials, and the ratio of 150D semi-gloss flat yarn to 150D full-dull flat yarn is 2:1. The ground weave is made of 75D filament as the base yarn raw material; wherein the velvet weave is 150D / 288F semi-gloss flat DTY colored yarn and 150D / 288F full-dull flat DTY, and the 75D filament is 75D / 36F FDY.

[0057] The preparation method comprises the following steps:

[0058] S1 raw material selection: 150D semi-gloss flat yarn and 150D cationic yarn were selected as the velvet yarn, and 75D filament yarn was selected as the raw material for the base yarn.

[0059] S2 warping, warping the raw materials in S1 through a warping machine, using a Changzhou Saijia warping machine;

[0060] S3 weaving, the raw materials after warping in S2 are fed to the warp knitting machine according to the weaving process to weave the grey cloth and cut into pieces; the warp knitting machine adopts the GE-2886 double needle bed warp knitting machine, GB1, GB2, GB4 and GB5 form the base yarn structure, GB3 forms the pile yarn structure,

[0061] The yarn laying numbers of each combing bar during weaving are:

[0062] L1:4-4-4-4-0-0-0-0-3-3-3-3-0-0-0-0 / /

[0063] L2:0-1-1-1 / 1-0-0-0 / /

[0064] L3:0-1-0-1 / 1-0-1-0 / 2-3-2-3 / 3-2-3-2 / 4-5-4-5 / 5-4-5-4 / 6-7-6-7 / 7-6-7-6 / 8-9-8-9 / 9-8-9-8 / 10-11-1 0-11 / 11-10-11-10 / 12-13-12-13 / 13-12-13-12 / 14-15-14-15 / 15-14-15-14 / 11-12-10-10 / 8-7-5-5 / 3-4-2- 2 / 1-0-1-0 / 0-1-0-1 / 3-2-3-2 / 2-3-2-3 / 5-4-5-4 / 4-5-4-5 / 7-6-7-6 / 6-7-6-7 / 9-8-9-8 / 8-9-8-9 / 11-10-11-10 / 10-11-10-11 / 13-12-13-12 / 12-13-12-13 / 15-14-15-14 / 14-15-14-15 / 13-13-12-11 / 9-9-7-8 / 6-6-4-3 /

[0065] L4: 0-1-1-1 / 1-0-0-0 / /

[0066] L5: 4-4-4-4-0-0-0-0-3-3-3-3-0-0-0-0;

[0067] S4 grey fabric dyeing, finishing and shaping. The grey fabric after S3 slitting is sequentially turned over - combed - ironing - pre-shaping - dyeing (printing) - softening - dehydration - drying - napping - combing and shearing - ironing - shaking out - final shaping.

[0068] Furthermore, the warping process parameters in S2 are: number of warps: 400, warping speed of hair yarn 800r / min, warping speed of bottom yarn 1000r / min, hairiness sensor setting position 1, pressure roller pressure 3kg / cm 2 , curling tension 30kg, creel tension 13g / root, monofilament 30g / root, hardness 50.

[0069] The temperature for pre-setting the grey cloth in S4 is 200° C. and the time is 30 seconds; the temperature for setting the finished product in S4 is 150° C. and the time is 40 seconds.

[0070] Example 2

[0071] Example 2 provides a method for preparing a large-interval twill jacquard flannel fabric, the formula and preparation method of which are basically the same as those of Example 1, except that the mass percentage of the velvet tissue in the fabric is 80%, and the mass percentage of the base silk tissue in the fabric is 20%.

[0072] Example 3

[0073] Example 3 provides a method for preparing a large-interval twill jacquard flannel fabric, the formula and preparation method of which are basically the same as those of Example 1, except that the mass percentage of the velvet tissue in the fabric is 60%, and the mass percentage of the base silk tissue in the fabric is 40%.

[0074] Comparative Example 1

[0075] Comparative Example 1 provides a preparation method of spaced large twill jacquard flannel fabric, which is basically the same as Example 1, except that the velvet yarn structure uses 120D high gloss flat yarn and 120D full matte flat yarn as raw materials for the velvet yarn, and the base yarn structure uses 50D / 24F FDY filament as the base yarn raw material.

[0076] Comparative Example 2

[0077] Comparative Example 2 provides a preparation method of spaced large twill jacquard flannel fabric, which is basically the same as Example 1, except that the velvet yarn structure uses 100D / 144F cationic DTY and 150D / 288F cationic raw materials as the velvet yarn, and the base yarn structure uses 75D / 36FFDY filament as the base yarn raw material.

[0078] Comparative Example 3

[0079] Comparative Example 3 provides a method for preparing a jacquard flannel fabric with large interval twill, which is basically the same as Example 1, except that the inlay yarn number of the L1 combing bar is: 5440 0115.

[0080] Comparative Example 4

[0081] Comparative Example 4 provides a method for preparing a jacquard flannel fabric with large interval twill, which is basically the same as Example 1, except that the number of the inlay yarns of the L3 guide bar is:

[0082] 0-1-0-1 / 3-2-3-2 / 4-5-4-5 / 7-6-7-6 / 8-9-8-9 / 11-10-11-10 / 12-13-12-13 / 15-14-15-14 / 11-12-10-10 / 8-7-5-5 / 3-4-2-2 / 1-0-1-0 / 2-3-2-3 / 5-4-5-4 / 6-7-6-7 / 9-8-9-8 / 10-11-10-11 / 13-12-13-12 / 14-15-14-15 / 13-13-12-11 / 9-9-7-8 / 6-6-4-3 / .

[0083] The preparation methods of the spaced large twill jacquard flannel fabrics prepared in Examples 1-3 and Comparative Examples 1-4 were subjected to relevant performance tests according to the current corresponding national standards of my country. The test results are shown in Table 1.

[0084]

[0085] refer to Figure 1 、 Figure 2 and Figure 3 As can be seen from Table 1, in the comparison between Examples 1-3 and Comparative Examples 1 and 2 of the present invention, the D numbers of the pile yarn and the base yarn in Comparative Examples 1 and 2 are different from those in Examples 1-3, and the gram weight per square meter of the processed fabric is less than that of the fabric in Examples 1-3. When the weight is lighter, the thickness of the fabric is smaller, the graininess of the processed fabric is not full, the texture is not clear, the softness is poor, the hand feel is not good, and the fabric is easy to wrinkle;

[0086] Comparative Examples 1-3 of the present invention and Comparative Examples 3 and 4, when any of GB1 and GB3 in the weaving process are changed, the fabric elongation (warp), fabric elongation (weft), fabric shrinkage (warp), fabric shrinkage (weft) and washing shrinkage of the processed large-interval twill jacquard flannel fabric are worse than those of Examples 1-3. The shrinkage of the fabric after long-term use or washing is poor, the fabric is prone to wrinkles, and the surface is not smooth.

[0087] To sum up: through the selection of raw materials and the improvement of weaving technology, the processed large-interval twill jacquard flannel fabric has moderate thickness to meet the actual processing needs, the fabric has full granularity, clear twill lines, the fabric is soft and has a good hand feel; at the same time, the radial elongation and weft elongation of the fabric after long-term use are small, the radial shrinkage and weft shrinkage of the fabric can reach more than 80%, the fabric has better recovery performance after pulling, and the fabric is not easy to shrink and stretch after washing. Therefore, the processed fabric has good wrinkle resistance, and the fabric is not easy to wrinkle after long-term use, which meets the actual market application needs. The products processed with this large-interval twill jacquard flannel fabric are soft and close-fitting when used, easy to keep warm, comfortable and decent.

[0088] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable people familiar with this technology to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for preparing a jacquard flannel fabric with large interval twill, characterized by: The large-interval twill jacquard flannel fabric includes a velvet weave and a base weave, wherein the mass percentage of the velvet weave in the fabric is 60% to 80%, and the mass percentage of the base weave in the fabric is 20% to 40%. The velvet weave adopts 150D semi-gloss flat yarn and 150D full-dull flat yarn as raw materials for the velvet, and the ratio of the 150D semi-gloss flat yarn to the 150D full-dull flat yarn is 2:

1. The base weave adopts 75D filament as the base yarn raw material; The preparation method comprises the following steps: S1 raw material selection: 150D semi-gloss flat yarn and 150D full-dull flat yarn are selected as the velvet yarn, and 75D filament is selected as the raw material of the base yarn; S2 warping, warping the raw materials in S1 through a warping machine; S3 weaving, feeding the warped raw material in S2 to a warp knitting machine according to a weaving process to obtain grey fabric and slitting the fabric; The yarn laying numbers of each combing bar during weaving are: L1:4-4-4-4 / 0-0-0-0 / 3-3-3-3 / 0-0-0-0 / / L2:0-1-1-1 / 1-0-0-0 / / L3:0-1-0-1 / 1-0-1-0 / 2-3-2-3 / 3-2-3-2 / 4-5-4-5 / 5-4-5-4 / 6-7-6-7 / 7-6-7-6 / 8-9-8-9 / 9-8-9-8 / 10-11-10-11 / 11-10-11-10 / 12-13-12-13 / 13-12-13-12 / 14-15-14-15 / 15-14-15-14 / 11-12-10-10 / 8-7-5-5 / 3-4-2-2 / 1-0-1-0 / 0-1-0-1 / 3-2-3-2 / 2-3-2-3 / 5-4-5-4 / 4-5-4-5 / 7-6-7-6 / 6-7-6-7 / 9-8-9-8 / 8-9-8-9 / 11-10-11-10 / 10-11-10-11 / 13-12-13-12 / 12-13-12-13 / 15-14-15-14 / 14-15-14-15 / 13-13-12-11 / 9-9-7-8 / 6-6-4-3 / / L4：0-1-1-1 / 1-0-0-0 / / L5：4-4-4-4 / 0-0-0-0 / 3-3-3-3 / 0-0-0-0 / / ； S4 grey fabric dyeing, finishing and shaping. The grey fabric after S3 slitting is sequentially turned over - combing - ironing - pre-shaping - dyeing / printing - softening - dehydration - drying - napping - combing and shearing - ironing - polarizing - final shaping.

2. The method for preparing the large-interval twill jacquard flannel fabric according to claim 1, characterized in that: The pile yarn structure is 150D / 288F semi-gloss flat DTY and 150D / 288F full-dull flat DTY, and the 75D filament is 75D / 36FFDY.

3. The method for preparing the jacquard flannel fabric with large interval twill according to claim 1 or 2, characterized in that: The warp knitting machine in S3 is a GE-2886 double needle bed warp knitting machine.

4. The method for preparing the jacquard flannel fabric with large interval twill according to claim 3, characterized in that: In the S3, GB1, GB2, GB4 and GB5 form a base silk structure, and GB3 forms a pile silk structure.

5. The method for preparing the jacquard flannel fabric with large interval twill according to claim 4, characterized in that: The warping process parameters in S2 are as follows: number of warps: 390-420, hair yarn speed in warping: 790-810 r / min, bottom yarn speed: 900-1100 r / min, hairiness sensing settings: 1, roller pressure: 3-5 kg / cm², crimping tension: 25-33 kg, creel tension: 10-15 g / strand, monofilament: 30-35 g / strand, hardness: 48-52.

6. The method for preparing the jacquard flannel fabric with large interval twill according to claim 5, characterized in that: The temperature for pre-setting the grey cloth in S4 is 180-250° C. and the time is 25-30 seconds; the temperature for setting the finished product in S4 is 140-160° C. and the time is 35-45 seconds.

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