阅读说明：本技术 一种高清晰斜纹轻薄牛仔面料及其制备方法 (High-definition twill light and thin jean fabric and preparation method thereof ) 是由 姜明 孙勇 刘霞 李辉 张艳 张坤生 王伟 于 2020-12-31 设计创作，主要内容包括：一种高清晰斜纹轻薄牛仔面料及其制备方法,属于织造技术领域。高清晰斜纹轻薄牛仔面料,包括边组织和地组织,地组织采用5～6根经纱在上1根纬纱在上,然后1根经纱在上1根纬纱在上的斜纹组织结构；经纱支数为30～36支,纬纱支数为30～36支。制备方法,步骤依次包括整经—经纱浆染—穿综—织造,穿综：使用综框10页,边组织经纱穿1、2页综；地组织经纱顺穿3、4、5、6、7、8、9、10页综；织造：经向紧度49～54%,纬向紧度35～40%,总紧度66～73%,本发明的制备方法所得牛仔面料轻薄且斜纹清晰,在保证低布重的同时,面料具有清晰线条状的泛白斜纹风格,适用于缝制轻薄服装。(A high-definition twill light and thin jean fabric and a preparation method thereof belong to the technical field of weaving. The high-definition twill light and thin jean fabric comprises a side weave and a ground weave, wherein the ground weave is a twill weave structure in which 5-6 warp yarns are arranged on upper 1 weft yarn, and then 1 warp yarn is arranged on upper 1 weft yarn; the number of warp yarns is 30-36, and the number of weft yarns is 30-36. The preparation method comprises the following steps of warping, warp size dyeing, drafting, weaving and drafting in sequence: using a heald frame for 10 pages, and enabling the edge weaving warp to penetrate through 1 page heald and 2 pages heald; the ground weave warp threads are sequentially penetrated by 3, 4, 5, 6, 7, 8, 9 and 10 pages of healds; weaving: the warp tightness is 49-54%, the weft tightness is 35-40%, and the total tightness is 66-73%.)

1. The utility model provides a high definition twill frivolous jean fabric, includes limit tissue and ground tissue, its characterized in that: the ground weave adopts a twill weave structure that 5-6 warp yarns are arranged on the upper 1 weft yarns, and then 1 warp yarn is arranged on the upper 1 weft yarns; the number of warp yarns is 30-36, and the number of weft yarns is 30-36.

2. The high-definition twill light and thin jean fabric according to claim 1, wherein the twill light and thin jean fabric comprises: the warp yarns are pure cotton yarns, and the weft yarns are blended yarns of cotton and spandex.

3. The high-definition twill light and thin jean fabric according to claim 1, wherein the twill light and thin jean fabric comprises: the side weave adopts a warp-rib weave structure with 2 warps and 2 wefts above the warps.

4. The high-definition twill light and thin jean fabric according to claim 1, wherein the twill light and thin jean fabric comprises: the twill weave structure is a right twill.

5. The high-definition twill light and thin jean fabric according to claim 1, wherein the twill light and thin jean fabric comprises: the number of the warp yarns is 32-34, and the number of the weft yarns is 32-34.

6. The high-definition twill light and thin jean fabric according to claim 1, wherein the twill light and thin jean fabric comprises: the ground weave adopts a twill weave structure that 5 warp yarns are arranged on the upper 1 weft yarns, and then 1 warp yarn is arranged on the upper 1 weft yarns.

7. The preparation method of the high-definition twill light and thin jean fabric according to claim 1, which sequentially comprises the steps of warping, warp size dyeing, drafting and weaving, and is characterized in that:

drafting: the number of the warps is 30-36, the number of the wefts is 30-36, 10 heald frames are used, and the edge structure warps penetrate 1 and 2 healds; the ground weave warp threads are sequentially penetrated by 3, 4, 5, 6, 7, 8, 9 and 10 pages of healds; the ground weave adopts a twill weave structure that 5-6 warp yarns are arranged on the upper 1 weft yarns, and then 1 warp yarn is arranged on the upper 1 weft yarns;

weaving: the warp tightness of the upper machine is 49-54%, the weft tightness is 35-40%, the total tightness is 66-73%, the vehicle speed is 300-500 r/min, the tension of the upper machine is 2800-2900N, the opening time is 300-310 degrees, the weft density of the upper machine is 230-250/10 cm, and the height of the back beam is 8 cm.

8. The preparation method of the high-definition twill light and thin jean fabric according to claim 7, characterized by comprising the following steps: the warping step comprises the following specific operations: the speed is 300-500 r/min, and the single yarn tension of the warp is 12-15 cn/yarn.

9. The preparation method of the high-definition twill light and thin jean fabric according to claim 7, characterized by comprising the following steps: the warp sizing step comprises the following specific operations: boiling, dyeing yarn, sizing and drying for later use; the pulping rate is 7-9%, the moisture regain is 8-10%, the elongation is 0.5-1.0%, the temperature of a pulp pot is 92-97 ℃, the pH value is 6-8, the temperature of a pre-drying cylinder is 110-125 ℃, and the temperature of a combined drying cylinder is 105-115 ℃.

10. The preparation method of the high-definition twill light and thin jean fabric according to claim 7, characterized by comprising the following steps: in the weaving step, the warp tightness is 49.3-53.9%, the weft tightness is 35.8-39.2%, and the total tightness is 67.5-72%.

Technical Field

A high-definition twill light and thin jean fabric and a preparation method thereof belong to the technical field of weaving.

Background

The jean fabric is thick yarn-dyed warp-faced twill cotton, the warp yarn is dark and generally is indigo, and the weft yarn is light and generally is light grey or boiled natural white yarn. The surface of the thick denim fabric is distributed with the line-shaped whitish twill, and the texture forms a classic fabric style, namely a denim style. In order to wear the jean fabric in hot seasons, the cloth weight of the jean fabric is reduced in the prior art, and the light and thin jean fabric is manufactured and is suitable for manufacturing light and thin clothes and trousers and is worn in hot seasons.

The applicant finds in research that the existing light and thin jean fabric has the following problems:

firstly, the existing light and thin jean fabric is heavy at 5-7 ounces per square yard, thick and heavy, and uncomfortable to wear in hot seasons; the existing light and thin jean fabric is difficult to reach below 5 ounces/square yard, so that the real light and thin jean fabric cannot be really realized. When the fabric is too light and thin, the weaving difficulty is high, the problem of seam slippage of the obtained light and thin jean fabric is serious, and the fabric can not meet the requirement of clothes.

Secondly, the existing light and thin jean fabric has fuzzy cloth surface lines and no clear twill line shape. In order to realize lightness and thinness, high-count yarns are necessarily adopted for weaving, but the finally obtained lightness and thinness jean fabric loses the jean style on the fabric texture. In the prior art, when the weight of the light and thin jean fabric is too low, the fabric loses the linear whitening twill effect, and the style of the fabric is the same as that of common cotton cloth.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the jean fabric prepared by the preparation method is light and thin, has clear twill, and has clear linear and whitish twill style while ensuring low cloth weight.

The technical scheme adopted by the invention for solving the technical problems is as follows: the high-definition twill light and thin jean fabric comprises edge weave and ground weave, wherein: the ground weave adopts a twill weave structure that 5-6 warp yarns are arranged on the upper 1 weft yarns, and then 1 warp yarn is arranged on the upper 1 weft yarns; the number of warp yarns is 30-36, and the number of weft yarns is 30-36.

The warp yarns are pure cotton yarns, and the weft yarns are blended yarns of cotton and spandex.

The side weave adopts a warp-rib weave structure with 2 warps and 2 wefts above the warps.

The twill weave structure is a right twill.

The number of the warp yarns is 32-34, and the number of the weft yarns is 32-34.

The ground weave adopts a twill weave structure that 5 warp yarns are arranged on the upper 1 weft yarns, and then 1 warp yarn is arranged on the upper 1 weft yarns.

The preparation method of the high-definition twill light and thin jean fabric comprises the following steps of warping, warp size dyeing, drafting and weaving in sequence, wherein:

drafting: the number of the warps is 30-36, the number of the wefts is 30-36, 10 heald frames are used, and the edge structure warps penetrate 1 and 2 healds; the ground weave warp threads are sequentially penetrated by 3, 4, 5, 6, 7, 8, 9 and 10 pages of healds; the ground weave adopts a twill weave structure that 5-6 warp yarns are arranged on the upper 1 weft yarns, and then 1 warp yarn is arranged on the upper 1 weft yarns;

weaving: the warp tightness of the upper machine is 49-54%, the weft tightness is 35-40%, the total tightness is 66-73%, the vehicle speed is 300-500 r/min, the tension of the upper machine is 2800-2900N, the opening time is 300-310 degrees, the weft density of the upper machine is 230-250/10 cm, and the height of the back beam is 8 cm.

The warping step comprises the following specific operations: the speed is 300-500 r/min, and the single yarn tension of the warp is 12-15 cn/yarn.

The warp sizing step comprises the following specific operations: boiling, dyeing, sizing and drying the warp yarn for later use; the pulping rate is 7-9%, the moisture regain is 8-10%, the elongation is 0.5-1.0%, the temperature of a pulp pot is 92-97 ℃, the pH value is 6-8, the temperature of a pre-drying cylinder is 110-125 ℃, and the temperature of a combined drying cylinder is 105-115 ℃.

Preferably, in the weaving step, the warp tightness is 49.3-53.9%, the weft tightness is 35.8-39.2%, and the total tightness is 67.5-72%.

The invention is described below:

preferably, warp tightness 52.2%, weft tightness 38.2%, total tightness: 70.5 percent

Preferably, in the weaving: the reed number is 105 teeth/9-11 cm, the reeding reed width is 190-195 cm, the workshop temperature is 26-32 ℃, and the relative humidity is 70-75%.

The right twill means that the oblique direction of the twill on the surface of the fabric facing outwards is from left to bottom to right to top.

In the warp sizing step, the dyed warp is blue or black. In the present invention, the weft yarn is white, light gray or light blue.

In the warp sizing and dyeing step, a sizing and dyeing combination machine is adopted for production, and double-size-groove sizing is adopted for sizing.

The warp sizing dyeing step sequentially comprises the working procedures of scouring, dyeing, sizing and drying, and specifically the detailed working procedures sequentially comprise scouring, washing, dyeing, washing, drying, sizing, drying and winding into a beam.

Preferably, the dyeing step: the vehicle speed is 20-30 m/min, the dye is 1-3 g/L, the alkali is 3.4-3.6 g/L, and the sodium hydrosulfite is 1.98-2.09 g/L;

the fabric comprises two side tissues and a ground tissue, wherein the ground tissue is positioned between the two side tissues, and the two side tissues are symmetrically distributed. The side weave is the woven fabric side weave, and the ground weave is the part which embodies the fabric texture.

Compared with the prior art, the invention has the beneficial effects that:

1. the high-definition twill light and thin jean fabric is light and thin and has clear twill, and the fabric has a clear linear whitening twill style while ensuring low cloth weight. The weave structure has the advantages of both reinforced twill and composite twill, is a weave structure which is found by the applicant in research and visually restores the style of the strip-shaped whitish twill, and firstly, adopts '5 warp yarns are arranged upwards'; the arrangement of the thick denim is repeated to form twills by 'whitening lines-dark lines-whitening lines-dark lines', so that the bright and dark setbacks of the dark lines are needed, and the strip-shaped whitening twills are more prominent; if the dark lines are too wide or too narrow, the dark lines are visually different from 'thick denim whitish twills', and even the inclination angle of the twills can be changed, so that the denim style is lost. The applicant researches and determines that the main reason is due to the yarn thinning of the yarn, and the width ratio of the 'white line-dark line' is changed with the roving. Therefore, the applicant designs that ' 5-6 warp yarns are arranged above ' to be used as ' dark lines ', ' 1 weft yarn is arranged above ' and then 1 warp yarn is arranged above 1 weft yarn ' to be used as ' white lines '; although the dark lines on the weave pattern plate are obviously wider than the whitish lines, the dark lines are mostly blue, blue-black and black colors with visual contraction effect, when the distance between the dark lines and the cloth cover is more than 30cm, the width of the dark lines is less than or equal to the width of the whitish lines, the visual effect of the human eyes is most close to the line-shaped whitish twill style of thick jeans, and the lines are clear.

Secondly, the applicant researches the visual effect of the twill style of the thick denim, and finds that the 'whitish line' in the twill style of the thick denim is formed after water washing and friction in the subsequent process, and the 'whitish line' woven by the thick yarns has stereoscopic impression due to the fact that the thick yarns with low counts are thick; in the light and thin jean fabric, because the thin yarn with high count is used for weaving, the 'white lines' woven by the thin yarn have no three-dimensional sense, and the 'white effect' formed by water washing friction in the subsequent process cannot be achieved. In order to solve the problem, the applicant adopts 1 weft yarn above the ground weave, then 1 warp yarn above the 1 weft yarn as a white line part, and the effect of the white line part is that the 1 warp yarn above the white line part can bring a small amount of dark color in the white line part, so that the white line part woven by the spun yarn can visually obtain the dyeing feeling caused by water washing friction, and the thick denim twill style can be visually realized. The 'white lines' woven by the existing roving are not pure white with high lightness, if the 'white lines' are all 'weft yarns are on' if the reinforced twill is directly adopted, the 'white lines' are not doped with dark colors and are too white, and the twill style of the thick denim is lost.

Thirdly, the high-definition twill light and thin jean fabric is woven by adopting yarns with 30-36 warps and 30-36 wefts, the weight of the obtained high-definition twill light and thin jean fabric can be as low as 4 ounces per square yard, and the fabric weight is obviously lower than that of the existing commercially available light and thin fabric.

2. The jean fabric prepared by the preparation method disclosed by the invention has a good seam slippage resistance effect and is suitable for sewing light and thin clothes. The seam slippage problem easily appears when current frivolous jean fabric weaves, and this problem can lead to clothing to be taken an emergency along sewing thread and careless for seam, and this problem causes harmful effects to consumer's clothing wearing experience. The warp tightness 49-54%, the weft tightness 35-40%, the total tightness 66-73%, the machine tension 2800-2900N, the opening time 300-310 °, the machine weft density 230-250/10 cm and the back beam height 8cm are designed in the weaving step, so that the woven light and thin jean fabric has good seam slippage resistance and good breaking strength and tearing strength.

Drawings

FIG. 1 is a drawing of a tissue template of example 1.

FIG. 2 is a view of the ground weave portion of the fabric of example 1 as viewed at a distance of 30 cm.

Fig. 3 is a partially enlarged view of fig. 2.

Detailed Description

The present invention is further illustrated by the following specific examples, of which example 1 is the most preferred.

Equipment used for warping: a cotton yarn high-speed warping machine is adopted; the warp sizing and dyeing equipment comprises the following steps: a sizing and dyeing combination machine; the drafting step and the weaving step use equipment: a rapier loom.

Example 1

Referring to fig. 1, the direction a is the warp direction and the direction B is the weft direction. In FIG. 1, W represents weft yarns, J represents warp yarns, wherein (J01-J02) represents side weaves, and (J1-J8) represent ground weaves; each square in fig. 1 represents a stitch point, where a black square represents warp yarn on top and a white square represents weft yarn on top.

The clear twill light and thin jean fabric of this embodiment includes limit tissue and ground tissue, wherein: the side weave adopts a warp-rib weave structure with 2 warp yarns below the upper 2 weft yarns (see J01 and J02 in figure 1); the ground weave adopts a right twill weave structure that 5 warp yarns are arranged above 1 weft yarn, and then 1 warp yarn is arranged above 1 weft yarn (see J1-J8 in the figure 1); the number of warp yarns is 32, and the number of weft yarns is 32 (containing 20D spandex). The warp yarns are pure cotton yarns, and the weft yarns are blended yarns of cotton and spandex. The warp yarns were blue after dyeing and the weft yarns were white.

The preparation method of the high-definition twill light and thin jean fabric sequentially comprises the following steps:

1) warping: the speed is 400r/min, and the single yarn tension of the warp is 13 cn/yarn;

2) warp sizing dyeing: boiling off, dyeing, sizing and drying the warps for later use;

boiling-off process: 5g/L of alkali and 6g/L of citric acid;

a dyeing procedure: the vehicle speed is 25m/min, the indigo powder is 1.1g/L, the alkali is 3.5g/L, and the sodium hydrosulfite is 2 g/L;

sizing: the sizing rate is 7-9%, the moisture regain is 8-10%, the elongation is 0.5-1.0%, the temperature of a pulp pot is 92-97 ℃, and the pH value is 6-8;

and (3) drying: the temperature of the pre-drying cylinder is 120 ℃, and the temperature of the combined drying cylinder is 110 ℃;

3) drafting: the number of the warp yarns is 32, the number of the weft yarns is 32, 10 healds are used, and 1 and 2 healds are worn by the edge weaving warp yarns (the total number of the edge weaving warp yarns is 48); the ground weave warp threads are sequentially penetrated by 3, 4, 5, 6, 7, 8, 9 and 10 pages of healds; the ground weave warp yarns are fed in every reed, and the side yarns are fed in every reed; the ground weave adopts a twill weave structure that 5 warps are arranged on the upper 1 wefts, and then 1 warp is arranged on the upper 1 wefts;

4) weaving: the vehicle speed is 500r/min, the machine tension is 2900N, the opening time is 305 degrees, the machine weft density is 240 pieces/10 cm, and the height of the back beam is 8 cm.

Example 2

The clear twill light and thin jean fabric of this embodiment includes limit tissue and ground tissue, wherein: the side weave adopts a warp-rib weave structure with 2 warps and 2 wefts above; the ground weave adopts a right twill weave structure that 6 warp yarns are arranged on the upper 1 weft yarns, and then 1 warp yarn is arranged on the upper 1 weft yarns; the number of warp yarns is 36, and the number of weft yarns is 36 (containing 20D spandex). The warp yarns are pure cotton yarns, and the weft yarns are blended yarns of cotton and spandex. The warp yarns were blue after dyeing and the weft yarns were white.

The preparation method of the high-definition twill light and thin jean fabric sequentially comprises the following steps:

1) warping: the speed is 300r/min, and the single yarn tension of the warp is 12 cn/yarn;

2) warp sizing dyeing: boiling off, dyeing, sizing and drying the warps for later use;

boiling-off process: 5g/L of alkali and 6g/L of citric acid;

a dyeing procedure: vehicle speed: 25m/min, content of indigo powder: 1.1g/L, indigo blue base solution alkali content: 3.4-3.6 g/L, sodium hydrosulfite content: 1.98-2.09 g/L;

sizing: the sizing rate is 7-9%, the moisture regain is 8-10%, the elongation is 0.5-1.0%, the temperature of a pulp pot is 92-97 ℃, and the pH value is 6-8;

and (3) drying: the temperature of the pre-drying cylinder is 125 ℃, and the temperature of the combined drying cylinders is 105 ℃;

3) drafting: the number of the warp yarns is 36, the number of the weft yarns is 36, 10 healds are used, and 1 and 2 healds are worn by the edge weaving warp yarns (the total number of the single-side edge weaving warp yarns is 50); the ground weave warp threads are sequentially penetrated by 3, 4, 5, 6, 7, 8, 9 and 10 pages of healds; the ground weave warp yarns are fed in every reed, and the side yarns are fed in every reed; the ground weave adopts a twill weave structure that 6 warp yarns are arranged on the upper 1 weft yarns, and then 1 warp yarn is arranged on the upper 1 weft yarns;

4) weaving: the speed is 300r/min, the machine tension is 2800N, the opening time is 310 degrees, the machine weft density is 250 pieces/10 cm, and the height of the back beam is 8 cm.

Example 3

The clear twill light and thin jean fabric of this embodiment includes limit tissue and ground tissue, wherein: the side weave adopts a warp-rib weave structure with 2 warps and 2 wefts above; the ground weave adopts a right twill weave structure that 5 warp yarns are arranged on the upper 1 weft yarns, and then 1 warp yarn is arranged on the upper 1 weft yarns; the number of warp yarns is 34, and the number of weft yarns is 34 (containing 20D spandex). The warp yarns are pure cotton yarns, and the weft yarns are blended yarns of cotton and spandex. The warp yarns were blue after dyeing and the weft yarns were white.

The preparation method of the high-definition twill light and thin jean fabric sequentially comprises the following steps:

1) warping: the speed is 300r/min, and the single yarn tension of the warp is 13 cn/yarn;

2) warp sizing dyeing: boiling off, dyeing, sizing and drying the warps for later use;

boiling-off process: 5g/L of alkali and 6g/L of citric acid;

a dyeing procedure: the vehicle speed is 25m/min, the indigo powder is 1.1g/L, the alkali is 3.5g/L, and the sodium hydrosulfite is 2 g/L;

sizing: the sizing rate is 7-9%, the moisture regain is 8-10%, the elongation is 0.5-1.0%, the temperature of a pulp pot is 92-97 ℃, and the pH value is 6-8;

and (3) drying: the temperature of the pre-drying cylinder is 110 ℃, and the temperature of the combined drying cylinders is 105 ℃;

3) drafting: the number of the warp yarns is 34, the number of the weft yarns is 34, 10 healds are used, and the edge weaving warp yarns penetrate 1 and 2 healds (the total number of single-side edge weaving warp yarns is 48); the ground weave warp threads are sequentially penetrated by 3, 4, 5, 6, 7, 8, 9 and 10 pages of healds; the ground weave warp yarns are fed in every reed, and the side yarns are fed in every reed; the ground weave adopts a twill weave structure that 5 warps are arranged on the upper 1 wefts, and then 1 warp is arranged on the upper 1 wefts;

4) weaving: the speed is 400r/min, the machine tension is 2850N, the opening time is 305 degrees, the machine weft density is 235 pieces/10 cm, and the height of the back beam is 8 cm.

Example 4

The clear twill light and thin jean fabric of this embodiment includes limit tissue and ground tissue, wherein: the side weave adopts a warp-rib weave structure with 2 warps and 2 wefts above; the ground weave adopts a right twill weave structure that 5 warp yarns are arranged on the upper 1 weft yarns, and then 1 warp yarn is arranged on the upper 1 weft yarns; the number of warp yarns is 30, and the number of weft yarns is 30 (containing 20D spandex). The warp yarns are pure cotton yarns, and the weft yarns are blended yarns of cotton and spandex. The warp yarns were blue after dyeing and the weft yarns were white.

The preparation method of the high-definition twill light and thin jean fabric sequentially comprises the following steps:

1) warping: the speed is 500r/min, and the single yarn tension of the warp is 15 cn/yarn;

2) warp sizing dyeing: boiling off, dyeing, sizing and drying the warps for later use;

boiling-off process: 5g/L of alkali and 6g/L of citric acid;

a dyeing procedure: the vehicle speed is 25m/min, the indigo powder is 1.1g/L, the alkali is 3.5g/L, and the sodium hydrosulfite is 2 g/L;

sizing: the sizing rate is 7-9%, the moisture regain is 8-10%, the elongation is 0.5-1.0%, the temperature of a pulp pot is 92-97 ℃, and the pH value is 6-8;

and (3) drying: the temperature of the pre-drying cylinder is 110 ℃, and the temperature of the combined drying cylinder is 115 ℃;

3) drafting: the number of the warp yarns is 30, the number of the weft yarns is 30, 10 healds are used, and the edge weaving warp yarns penetrate 1 page and 2 pages of healds (the total number of single-side edge weaving warp yarns is 48); the ground weave warp threads are sequentially penetrated by 3, 4, 5, 6, 7, 8, 9 and 10 pages of healds; the ground weave warp yarns are fed in every reed, and the side yarns are fed in every reed; the ground weave adopts a twill weave structure that 5 warps are arranged on the upper 1 wefts, and then 1 warp is arranged on the upper 1 wefts;

4) weaving: the speed of the vehicle is 500r/min, the machine tension is 2900N, the opening time is 300 degrees, the machine weft density is 244 pieces/10 cm, and the height of the back beam is 8 cm.

Performance testing

Washing the fabric obtained in the embodiment with hot water at 60 ℃ for 3 desizing, pre-drying at 110 ℃ and drying at 115 ℃; the performance test is then carried out on the denim fabric obtained in the example. The implementation standard number and the current quality standards of the united states LEVI' S company are detailed in table 1. The twill style is observed manually by a goods inspector, the distance between human eyes and the fabric is 30cm, and the bright and white twill style of the pantone strip is observed and is divided into the following parts from good to bad: clear, clearer and fuzzy.

Table 1 results of performance testing

。

As can be seen from table 1:

the denim fabric obtained in the embodiments 1-3 is light and thin, the cloth weight can be reduced to the range of 4 ounces/square yard, the fabric is really light and thin, and each index is far superior to the standard requirement. And the seam slippage resisting effect of the embodiments 1 to 3 is good, and the method is suitable for manufacturing light and thin clothes.

The attached figures 1-3 show that:

fig. 3 is a partial enlarged view of the coating, and it can be seen from fig. 3 that the texture of example 1 corresponds to that of fig. 1.

The observation distance of 30cm is the conventional observation distance of the fabric of the clothes, wherein figure 2 is shot at a distance of 30cm from the fabric, the visual effect of the fabric has clear linear whitish twill, the inclined direction of the whitish twill is from left to bottom to right, the whitish line is wider than the dark line, the whitish line is dark in white and medium, the line is clear and three-dimensional and has water washing friction feeling, and the visual observation style of figure 2 is consistent with the style of thick denim twill.

By comparing fig. 2 and fig. 3, it can be found that: due to the nature of cold shrink of the "dark lines" when viewed at greater distances, the "dark lines" appear visually narrower in fig. 2 than when viewed at close distances in fig. 3. Therefore, when the fabric is observed at a distance of more than 30cm, the fabric can visually present the visual effects of narrow dark lines and wide whitish lines, so that the visual observation style of the fabric is consistent with the style of thick denim twill.

The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.