Denim plaid fabric and preparation method thereof

Abstract

The invention discloses a denim plaid fabric and a preparation method thereof, and belongs to the technical field of denim fabric textile processes. The warp yarns and the weft yarns of the denim plaid fabric adopt 1 / 1 and 2 / 1 structural tissues to form plaids; the number of the side yarns is 2 * 48-104, and the side weave is of a 1 / 1 structure; the reed number is 72 / 2-82 / 2 inches, and the reed width is 1950-1970 mm; the weft density is 224-230 pieces per 10 cm; and the warp density is 307-378 pieces per 10 cm. The preparation method comprises the following steps: 1) spooling; (2) warping; (3) sizing; according to the invention, the warp yarns of the edge weave are vortex spinning, the number of the edge yarns is 2 * 48-104, and the edge weave is of a 1 / 1 structure, so that the problem of edge curling of the denim plaid fabric is thoroughly solved, the effect of no edge curling is realized, and the effects of high elastic elongation, high elastic recovery degree and low elastic growth rate are realized by adopting a dense reed number, wide reed width and medium weft density looming process.

Description

Technical Field

[0001] The invention belongs to the technical field of denim fabric textile technology, and particularly relates to a denim lattice fabric and a preparation method thereof. Background Art

[0002] Denim clothing increasingly meets people's aesthetic needs for individuality, fashion, naturalness and nostalgia, and has become a global clothing product suitable for all ages. The conventional denim fabrics commonly used in the market are thick, stiff, rugged and tough and wear-resistant.

[0003] However, with the evolution and technological innovation of fashionable clothing styles and designs, diversified fabric varieties and structures, multi-combination of processing techniques, serialization of fabric surface effects and functions, and artistic garment washing techniques, denim fabrics are facing a new challenge, namely, to simultaneously obtain the wearing comfort provided by radial elasticity and the stiff and high-end feel provided by radial bone feeling.

[0004] The denim fabrics provided in the prior art have the following deficiencies: first, the denim fabrics are easy to curl during production, which brings great difficulties to production and seriously affects production efficiency and product quality; the elastic recovery and elastic growth of the existing denim fabrics are difficult to meet the standard requirements of downstream customers. Second, the existing denim fabrics feel stiff and uncomfortable. Summary of the invention

[0005] The technical problem to be solved by the present invention is: to overcome the shortcomings of the prior art and provide a denim plaid fabric and a preparation method thereof; the edge structure warp yarn of the present invention is vortex spinning, the number of edge yarns is 2×48-104, and the edge structure adopts a 1 / 1 structure, which completely solves the problem of curling of the denim plaid fabric and achieves the effect of no curling; the denim plaid fabric prepared by adopting a dense reed number, a wide reed width, and a mid-weft dense machine process has an elastic elongation of 27.1%, an elastic recovery of 93.3%, and an elastic growth of 1.6%, achieving the effects of high elastic elongation, high elastic recovery and low elastic growth rate.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: the warp yarn and the weft yarn of the denim plaid fabric adopt a 1 / 1 and 2 / 1 structural organization to form a plaid; the number of edge yarns is 2×48 to 104, the edge organization adopts a 1 / 1 structure, and the edge organization warp yarn is vortex spinning; the reed number is 72 / 2 inches to 82 / 2 inches, and the reed width is 1950 to 1970 millimeters; the weft density is 224 yarns / 10 cm to 230 yarns / 10 cm; and the warp density is 307 yarns / 10 cm to 378 yarns / 10 cm.

[0007] The number of edge yarns is 2×48~104, the edge structure adopts 1 / 1 structure, and the edge structure warp yarn is vortex spinning; the problem of curling of denim plaid fabric is completely solved, and the effect of no curling is achieved; the denim plaid fabric prepared by dense reed number, wide reed width and medium weft dense machine technology has an elastic elongation of 27.1%, an elastic recovery of 93.3%, and an elastic growth of 1.6%, achieving the effects of high elastic elongation, high elastic recovery and low elastic growth rate. The greater the structure density, the less slippage dislocation.

[0008] The warp yarn raw materials include combed cotton and polyester staple fiber, and the weft yarn is 200D / 64F elastic yarn composed of a two-component composite of PET fiber and PTT fiber; the 200D / 64F elastic yarn is a 200D / 64F elastic light network yarn; the full name of PET fiber is polyethylene terephthalate fiber, which is called polyester in textiles. It has good strength and stability and is widely used in high-strength fabrics; the full name of PTT fiber is polytrimethylene terephthalate fiber, a new type of polyester fiber, also called elastic polyester; the specification parameters of polyester staple fiber are 1.56dtex×38mm; the combed cotton is CVC32S combed cotton; combed cotton has good moisture absorption and air permeability, and can keep dry and comfortable. Since the terry structure can accommodate more air, the combed cotton fabric has good warmth retention. The combed cotton fabric is durable and washable, not easy to pilling, and has good durability. As a natural fabric, it has good environmental protection and is harmless to health, which meets the modern people's pursuit of environmentally friendly and healthy life. The polyester staple fiber has high strength and wear resistance, can withstand greater pressure and friction, and is not easily damaged or worn; it also has good wrinkle resistance and stability, and can maintain stable performance even in high temperature or humid environments; it also has good insulation and corrosion resistance, and can resist the erosion of most chemicals and microorganisms. The yarn used in the present invention is a yarn from a siro spinning mill, which has single yarn twist and high strength.

[0009] The warp yarn uses combed and polyester staple fibers as raw materials, and the warp and weft density is reasonably designed. The denim plaid fabric produced is soft, comfortable and warm, feels full, and has the effect of moisture absorption and perspiration, meeting the needs of consumers. Since 200D / 64F elastic light network yarn contains more monofilaments, it is easy to form complex patterns or textures during the textile processing process, suitable for a variety of weaving processes, and can create a variety of product styles; at the same time, it has the characteristics of high strength, heat resistance, good elasticity and strong processing adaptability, so it is widely used in the textile field.

[0010] The number of the warp yarn is 10.2~36.4tex, and the number of the weft yarn is 15.5~32.2tex; by adjusting the number of the warp and weft yarns, textiles with different strengths, good durability, good air permeability and good softness can be prepared to meet the needs of various application scenarios.

[0011] Another aspect of the present invention further provides a method for preparing a denim checkered fabric, comprising the following steps: (1) Winding: The winding machine has a line speed of 450-550 r / min, and the tubular warp yarn and weft yarn are wound into twisted bobbins respectively; (2) Warping: The warp yarn is made into bundle yarn by the ball warping machine and wound on the ball shaft; (3) Sizing: Use a sizing machine to size the dyed yarn and make it into a weaving shaft; (4) Drawing in: Using a heald frame, the number of drop wire rows × the number of warp wires is 6 × (920-930); (5) Weaving: Weaving using a rapier loom; (6) Finishing: singeing → desizing → shrinkage-proof finishing.

[0012] The warping machine speed is 255~265m / min, the warp beam is 460~465×11+465~469×1 beam, and the single yarn tension is 30~35cN / strand; preferably, the warping machine speed is 260m / min, the warp beam is 463×11+467×1 beam, and the single yarn tension is 33cN / strand; the warping machine speed is fast, the warp beam configuration is reasonable and the single yarn tension is good, which can improve production efficiency and reduce production costs while ensuring product quality; the warping uses 6-page heald frames, and the number of warp dropper rows×the number of dropper sheets is 6×(920~930).

[0013] The sizing yarn adopts a double-sizing and double-pressing process, and the sizing rate of the sizing yarn is 8-10%; the sizing formula is calculated by weight: 100 parts of corn starch, 4 parts of propylene and 4 parts of oil, with a solid content of 11.5%, and water is used as the solvent; a high sizing rate makes the hand feel hard, and a high sizing rate will reduce the wear resistance of the yarn.

[0014] The sizing speed is 35~45m / min, the moisture regain is 9~11%, the viscosity is 6~8s and the elongation is 0.5~1.0%. The double sizing and double pressing process can better flatten the hairiness, thereby improving the wear resistance; the sizing speed is 35~45m / min, which can ensure the sizing quality of the yarn while improving production efficiency and optimizing production costs; the sizing rate is 8~10%, which can effectively improve the wear resistance and tensile strength of the yarn, while ensuring the softness and smoothness of the yarn; the moisture regain is 9~11%, which can maintain the good moisture absorption of the yarn, reduce the breakage and wrinkling of the fabric during the weaving process, ensure the smooth progress of the weaving process, and help improve the comfort and durability of the yarn; the viscosity is 6~8s, which can ensure the uniform application of the sizing liquid on the yarn, avoid the problem of uneven sizing or excessive sizing causing the yarn to be too hard, thereby ensuring the quality of the yarn and the feel of the fabric. The elongation of 0.5~1.0% can maintain the elasticity and extensibility of the yarn, which is beneficial to improve the wear resistance and tear resistance of the fabric, while ensuring the comfort and aesthetics of the fabric; the temperature of the pulp pot is 90~100℃, the pH value is 6~8, the drying cylinder temperature is 125~135℃ and the combined drying cylinder temperature is 115~125℃. The temperature of the pulp pot is 90~100℃, and this temperature range can maintain the stability of the pulp in the liquid state, while avoiding excessive temperature causing the pulp to deteriorate or burn; the pH value is 6~8, which is conducive to maintaining the chemical stability of the pulp and preventing it from changing due to inappropriate pH; the drying cylinder temperature is 125~135℃, which can effectively evaporate water, but not too high to burn the pulp; the combined drying cylinder temperature is 115~125℃. As the pulp gradually dries, its thermal sensitivity increases, and the temperature needs to be lowered to prevent burning or over-drying. The control of the above process parameters can improve the physical properties of the yarn, ensure the smooth progress of the weaving process, and improve the quality of the denim plaid fabric.

[0015] The dropper threading method is 1, 2, 3, 4, 5, 6; 2 ground warps are inserted into each reed, and 2 side yarns are inserted into each reed; the ground structure is 1 top and 1 bottom plain weave, and the side structure is 1 / 1; the ground warp threading sequence is 3, 4, 5, 6 straight threading, 2×48 to 104 threads, and the edge threading method is from the ground structure to the outside, in order of 1, 2, 1, 2, and repeated 13 to 17 times. The side structure warp is vortex spinning, the number of side yarns is 2×48 to 104 threads, and the side structure adopts a 1 / 1 structure, which completely solves the problem of curling of denim plaid fabrics and achieves the effect of no curling.

[0016] The rapier loom has a speed of 500-600 r / min, a rear beam height of 90-100 mm, an opening time of 305-315°, and a machine tension of 3550-3650 N. The rapier loom can solve the fabric surface defects of weft shrinkage and centripetal defects through reasonable adjustment and maintenance; the weaving workshop temperature is 26-32° C. and the relative humidity is 70-75%.

[0017] The finishing process includes: singeing→de-sizing→anti-shrinkage, and the cloth feeding sequence includes: two positive and one negative, and three burners; the anti-shrinkage machine speed is 40-50 m / min, and the singeing adopts a natural gas singeing machine; the singeing machine speed is 75-85 m / min, the flame temperature is 950-1050°C, the steam pressure of the rubber blanket cylinder is 0.2-0.4 MPa, and the steam pressure of the wool blanket cylinder is 0.4-0.6 MPa; by controlling the parameters of temperature, humidity and pressure during the pre-shrinkage process, the fabric size can be accurately adjusted to meet the pre-shrinkage requirements of the denim plaid fabric; the rubber blanket cylinder and the wool blanket cylinder provide important guarantees for the dimensional stability and wearing comfort of the textiles through their unique pre-shrinkage finishing functions.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The edge weave warp yarn of the present invention is vortex spun, the number of edge yarns is 2×48-104, and the edge weave adopts a 1 / 1 structure, which completely solves the problem of curling of denim plaid fabrics and achieves the effect of no curling; the denim plaid fabric prepared by adopting dense reed number, wide reed width, and mid-weft dense machine technology has an elastic elongation of 27.1%, an elastic recovery of 93.3%, and an elastic growth of 1.6%, achieving the effects of high elastic elongation, high elastic recovery and low elastic growth rate.

[0019] 2. The warp yarn of the present invention is made of cotton and polyester staple fibers as raw materials, and the weft yarn is a 200D / 64F elastic yarn composited with PET fiber and PTT fiber; and the warp and weft densities are reasonably designed, and the prepared denim plaid fabric has the effects of softness, comfort and warmth, full hand feel, and moisture absorption and perspiration; it has been mass-produced and is well received by customers. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the organizational structure of the denim plaid fabric of the present invention. DETAILED DESCRIPTION

[0021] Embodiment 1 is the best embodiment of the present invention, and the present invention will be further described below in conjunction with specific embodiments and comparative examples.

[0022] The chemical additives used in the examples and comparative examples of the present invention are all commercially available, and their specific information is as follows: The warp yarn is vortex-spun with a twist of 5 twists / m. The warp yarn raw materials include combed cotton and polyester staple fiber. The mass percentages of CVC32S combed cotton and polyester staple fiber are 60% and 40%, respectively. The weft yarn is air-spun with a twist of 5 twists / m. The weft yarn is 200D / 64F elastic yarn composited with PET fiber and PTT fiber. The mass percentages of PET fiber and PTT fiber are 55% and 45%, respectively. The combed cotton is CVC32S combed cotton purchased from Qingdao Yide Yarn Co., Ltd.; the polyester staple fiber is purchased from Hangzhou Xiaoshan Longfeng Chemical Fiber Co., Ltd.; PET fiber: PE T fiber stands for polyethylene terephthalate fiber, purchased from DuPont; PTT: PTT fiber stands for polypropylene terephthalate fiber, purchased from DuPont; corn starch: purchased from Shandong Pingju Biotechnology Co., Ltd.; propylene: purchased from Hebei Chuangtian Engineering Materials Co., Ltd.; oil: the oil is EL-10 castor oil polyoxyethylene ether, purchased from Jiangsu Jufeng Chemical Technology Co., Ltd.; ball warping machine, purchased from Oriental Chemical Glass (Beijing) Technology Co., Ltd.; rapier loom, purchased from Fuyang Xiaolin Technology Development Co., Ltd.; sizing machine, purchased from Beijing Haifuda Technology Co., Ltd.; pre-shrinking machine: purchased from Germany Menfus.

[0023] Example 1 A denim plaid fabric, the structure diagram of which is as follows Figure 1 As shown, the raw materials of the warp yarn include CVC32S combed cotton and polyester staple fiber, the warp yarn number is 18.5tex, and the warp density is 350 strands / 10cm; the weft yarn adopts 200D / 64F elastic yarn made of a two-component composite of PET fiber and PTT fiber, the weft yarn number is 22.2tex, the weft density is 226 strands / 10cm, the weft reed number is 77 / 2 inches, and the weft reed width is 1960 mm; The preparation method comprises the following steps: (1) Winding: The winding machine has a line speed of 500 r / min, and the tubular warp and weft yarns are wound into twisted bobbins respectively; (2) Warping: The warp yarn is made into bundle yarn by the ball warping machine and wound on the ball shaft; the warping speed is 260m / min, the warp shaft is 463×11+467×1 shaft, and the single yarn tension is 33cN / strand; (3) Sizing: Use a sizing machine to size the dyed yarn and make a weaving shaft; the sizing machine speed is 40m / min, the sizing rate is 9%, the moisture regain is 10%, the viscosity is 7s, the elongation is 0.7%, the temperature of the sizing pot is 96℃, the pH value is 7, the drying cylinder temperature is 130℃, and the combined drying cylinder temperature is 120℃; (4) Warp drawing: Use 6 heald frames, with the number of rows × the number of sheets being 6 × 926. The warp drawing method is 1, 2, 3, 4, 5, 6. Two ground warps are inserted into each reed, and two selvedge yarns are inserted into each reed. The ground weave is 1-up-1-down plain weave, and the selvedge weave is 1 / 1. The ground warp drawing sequence is 3, 4, 5, 6 straight through, and the number of selvedge yarns is 120. The selvedge drawing method is 1, 2, 1, 2 from the ground weave to the outside, and is repeated 15 times. (5) Weaving: Weaving was performed using a rapier loom; the rapier loom speed was 550 r / min, the back beam height was 95 mm, the opening time was 310°, the upper machine tension was 3600 N, the workshop temperature was 29 °C and the relative humidity was 73%; (6) Finishing: singeing → desizing → shrinkage-proof finishing. The natural gas singeing machine is used for singeing. The cloth feeding sequence is two positive and one negative, with three burners. The singeing machine speed is 80m / min, the flame temperature is 1000℃, and the shrinkage-proof speed is 45m / min. The steam pressure of the rubber blanket cylinder is 0.3MPa, and the steam pressure of the wool blanket cylinder is 0.5MPa.

[0024] Example 2 A denim plaid fabric, wherein the raw materials of the warp yarn include CVC32S combed cotton and polyester staple fiber, the warp yarn number is 10.2tex, and the warp density is 307 yarns / 10 cm; the weft yarn adopts 200D / 64F elastic yarn composited with PET fiber and PTT fiber, the weft yarn number is 15.5tex, the weft density is 224 yarns / 10 cm, the weft yarn reed number is 72 / 2 inches, and the weft yarn reed width is 1900 mm; The preparation method comprises the following steps: (1) Winding: The winding machine has a line speed of 450 r / min, and the tubular warp and weft yarns are wound into twisted bobbins respectively; (2) Warping: The warp yarn is made into bundle yarn by the ball warping machine and wound on the ball shaft; the warping speed is 255m / min, the warp shaft is 460×11+465×1 shaft, and the single yarn tension is 30cN / strand; (3) Sizing: Use a sizing machine to size the dyed yarn and make a weaving shaft; the sizing machine speed is 35m / min, the sizing rate is 8%, the moisture regain is 9%, the viscosity is 6s, the elongation is 0.5%, the sizing pot temperature is 90℃, the pH value is 6, the drying cylinder temperature is 125℃, and the combined drying cylinder temperature is 115℃; (4) Drawing in: Use 6 heald frames, with the number of rows × the number of sheets being 6 × 926. The drawing in of the drop wires is 1, 2, 3, 4, 5, 6. Two ground warps are inserted into each reed, and two selvedge yarns are inserted into each reed. The ground weave is 1-up-1-down plain weave, and the selvedge weave is 1 / 1. The drawing in order of the ground warp is 3, 4, 5, 6 straight through, and the number of selvedge yarns is 100. The selvedge drawing in order is 1, 2, 1, 2 from the ground weave to the outside, and is repeated 13 times. (5) Weaving: Weaving is done using a rapier loom; the rapier loom speed is 500 r / min, the back beam height is 90 mm, the opening time is 305°, the upper machine tension is 3550N, the workshop temperature is 26°C and the relative humidity is 70%; (6) Finishing: singeing → desizing → shrinkage-proof finishing. The natural gas singeing machine is used for singeing. The cloth feeding order is two positive and one negative, with three burners. The singeing machine speed is 75m / min, the flame temperature is 950℃, and the shrinkage-proof speed is 40m / min. The steam pressure of the rubber blanket cylinder is 0.2MPa, and the steam pressure of the wool blanket cylinder is 0.4MPa.

[0025] Example 3 A denim plaid fabric, wherein the raw materials of the warp yarn include CVC32S combed cotton and polyester staple fiber, the warp yarn number is 36.4tex, and the warp density is 378 yarns / 10 cm; the weft yarn adopts 200D / 64F elastic yarn composited with PET fiber and PTT fiber, the weft yarn number is 32.2tex, the weft density is 230 yarns / 10 cm, the weft yarn reed number is 82 / 2 inches, and the weft yarn reed width is 2000 mm; The preparation method comprises the following steps: (1) Winding: The winding machine has a line speed of 500 r / min, and the tubular warp and weft yarns are wound into twisted bobbins respectively; (2) Warping: The warp yarn is made into bundle yarn by the ball warping machine and wound on the ball shaft; the warping speed is 265m / min; the warp shaft is 465×11+465×1 shaft, and the single yarn tension is 35cN / strand; (3) Sizing: Use a sizing machine to size the dyed yarn and make a weaving shaft; the sizing machine speed is 45m / min, the sizing rate is 10%, the moisture regain is 11%, the viscosity is 8s, the elongation is 1.0%, the sizing pot temperature is 100℃, the pH value is 8, the drying cylinder temperature is 135℃, and the combined drying cylinder temperature is 125℃; (4) Drawing in: Use 6 heald frames, with the number of rows × the number of sheets being 6 × 926. The drawing in of the drop wires is 1, 2, 3, 4, 5, 6. Two ground warps are inserted into each reed, and two selvedge yarns are inserted into each reed. The ground weave is 1-up-1-down plain weave, and the selvedge weave is 1 / 1. The drawing in order of the ground warp is 3, 4, 5, 6 straight through, and the number of selvedge yarns is 130. The selvedge drawing in order is 1, 2, 1, 2 from the ground weave to the outside, and is repeated 17 times. (5) Weaving: Weaving is done using a rapier loom; the rapier loom speed is 600 r / min, the back beam height is 100 mm, the opening time is 305°, the upper machine tension is 3650 N, the workshop temperature is 32°C and the relative humidity is 75%; (6) Finishing: singeing → desizing → shrinkage-proof finishing. The natural gas singeing machine is used for singeing. The cloth feeding sequence is two positive and one negative, with three burners. The singeing machine speed is 78m / min, the flame temperature is 1050℃, and the shrinkage-proof speed is 50m / min. The steam pressure of the rubber blanket cylinder is 0.4MPa, and the steam pressure of the wool blanket cylinder is 0.6MPa.

[0026] Example 4 A denim plaid fabric, wherein the raw materials of the warp yarn include CVC32S combed cotton and polyester staple fiber, the warp yarn number is 18.2tex, and the warp density is 320 yarns / 10 cm; the weft yarn adopts 200D / 64F elastic yarn composited with PET fiber and PTT fiber, the weft yarn number is 22.2tex, the weft density is 224 yarns / 10 cm, the weft yarn reed number is 72 / 2 inches, and the weft yarn reed width is 1900 mm; The preparation method comprises the following steps: (1) Winding: The winding machine has a line speed of 450 r / min, and the tubular warp and weft yarns are wound into twisted bobbins respectively; (2) Warping: The warp yarn is made into bundle yarn by the ball warping machine and wound on the ball shaft; the warping speed is 255m / min, the warp shaft is 460×11+465×1 shaft, and the single yarn tension is 30cN / strand; (3) Sizing: Use a sizing machine to size the dyed yarn and make a weaving shaft; the sizing machine speed is 35m / min, the sizing rate is 8%, the moisture regain is 9%, the viscosity is 6s, the elongation is 0.5%, the sizing pot temperature is 90℃, the pH value is 6, the drying cylinder temperature is 125℃, and the combined drying cylinder temperature is 115℃; (4) Drawing in: Use 6 heald frames, with the number of rows × the number of sheets being 6 × 926. The drawing in of the drop wires is 1, 2, 3, 4, 5, 6. Two ground warps are inserted into each reed, and two selvedge yarns are inserted into each reed. The ground weave is 1-up-1-down plain weave, and the selvedge weave is 1 / 1. The drawing in order of the ground warp is 3, 4, 5, 6 straight through, and the number of selvedge yarns is 100. The selvedge drawing in order is 1, 2, 1, 2 from the ground weave to the outside, and is repeated 13 times. (5) Weaving: Weaving is done using a rapier loom; the rapier loom speed is 500 r / min, the back beam height is 90 mm, the opening time is 305°, the upper machine tension is 3550N, the workshop temperature is 26°C and the relative humidity is 70%; (6) Finishing: singeing → desizing → shrinkage-proof finishing. The natural gas singeing machine is used for singeing. The cloth feeding order is two positive and one negative, with three burners. The singeing machine speed is 75m / min, the flame temperature is 950℃, and the shrinkage-proof speed is 40m / min. The steam pressure of the rubber blanket cylinder is 0.2MPa, and the steam pressure of the wool blanket cylinder is 0.4MPa.

[0027] Comparative Example 1 The denim plaid fabric described in this comparative example has the same steps as in Example 1, except that the warp density is 315 strands / 10 cm; and the weft density is 220 strands / 10 cm.

[0028] Comparative Example 2 The denim plaid fabric described in this comparative example has the same steps as in Example 1, except that the warp density is 390 strands / 10 cm; and the weft density is 240 strands / 10 cm.

[0029] Comparative Example 3 The denim plaid fabric of this comparative example has the same steps as those of Example 1, except that the weft reed number is 60 / 2 inches and the weft reed width is 2100 mm.

[0030] Comparative Example 4 The denim plaid fabric described in this comparative example has the same steps as in Example 1, except that the weft yarn is 70D / 48F semi-dull fully stretched yarn.

[0031] Comparative Example 5 The denim plaid fabric described in this comparative example has the same steps as in Example 1, except that the edge structure is 1 / 2.

[0032] Comparative Example 6 The denim plaid fabric described in this comparative example has the same steps as in Example 1, except that the number of edge yarns in the warp drawing is 80.

[0033] Performance Testing The denim plaid fabrics prepared in the examples and comparative examples were subjected to performance tests, and the specific test results are shown in Table 1.

[0034] The elastic elongation of denim plaid fabric is tested with reference to ASTM D3107 (LEVI'S company standard range: ≥ 20%).

[0035] The elastic recovery of denim plaid fabric is tested with reference to ASTM D3107 (LEVI'S company standard range: ≥85%).

[0036] The elastic growth of denim plaid fabric is tested according to ASTM D3107 (LEVI'S company standard range: ≤8.0%%).

[0037] The breaking strength of denim plaid fabric is tested with reference to ASTM D5034 (LEVI'S company standard range: warp 176N, weft 132N).

[0038] The tear strength of denim plaid fabric is tested with reference to ASTM D1424 (LEVI'S company standard range: 10.6N in warp direction, 8.8N in weft direction).

[0039] The seam slippage of denim plaid fabrics is tested with reference to ASTM D1683 (LEVI'S standard range: 107N).

[0040] Visual inspection was performed to determine whether the denim plaid fabric had curling.

[0041] Table 1 Performance data of examples and comparative examples .

[0042] From Table 1 and Figure 1 The results show that the denim plaid fabric prepared by the present invention is soft, comfortable and warm, has a full hand feel, is moisture wicking, and achieves the effects of high recovery, low growth and no curling.

[0043] The breaking strength and tearing strength of comparative examples 1 and 2 are significantly lower than those of comparative example 1, which shows that the warp and weft density must be reasonably designed to obtain a denim plaid fabric that is soft, comfortable and warm, has a full hand feel, and absorbs moisture and perspiration.

[0044] The elastic elongation, elastic recovery and elastic growth of Comparative Examples 3 and 4 are significantly worse than those of Example 1. The weft yarn uses 200D / 64F, and a dense reed number, wide reed width, and medium-dense weft machine process are used to prepare a denim plaid fabric with high elastic elongation, high elastic recovery, and low elastic growth rate.

[0045] Comparative Examples 5 and 6 have curling phenomenon, which shows that the edge yarn structure needs to adopt 1 / 1 structure, and the number of edge yarns should be in the range of 2×48 to 104; only then can the problem of curling of denim plaid fabric be completely solved and the effect of non-curling denim plaid fabric be achieved.

[0046] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A denim plaid fabric, characterized in that: The warp and weft yarns adopt 1 / 1 and 2 / 1 structural organizations to form a grid; the number of side yarns is 2×48~104, the side organization adopts 1 / 1 structure, and the side organization warp yarn is vortex spinning; the reed number is 72 / 2 inches~82 / 2 inches, and the reed width is 1950~1970 mm; the weft density is 224 threads / 10 cm~230 threads / 10 cm; the warp density is 307 threads / 10 cm~378 threads / 10 cm.

2. The denim checkered fabric according to claim 1, characterized in that: The warp yarn raw materials include combed cotton and polyester staple fibers, and the weft yarns are 200D / 64F elastic yarns made of a two-component composite of PET fibers and PTT fibers.

3. The denim checkered fabric according to claim 1, characterized in that: The number of the warp yarn is 10.2-36.4 tex, and the number of the weft yarn is 15.5-32.2 tex.

4. The method for preparing a denim checkered fabric according to any one of claims 1 to 3, characterized in that: The steps include: (1) Winding: The winding machine runs at a speed of 450-550 r / min, and the tubular warp and weft yarns are wound into twisted bobbins respectively; (2) Warping: The warp yarn is made into bundle yarn by the ball warping machine and wound on the ball shaft; (3) Sizing: Use a sizing machine to size the dyed yarn and make it into a weaving shaft; (4) Drawing in: Using a heald frame, the number of drop wire rows × the number of warp wires is 6 × (920-930); (5) Weaving: Weaving using a rapier loom; (6) Finishing: singeing → desizing → shrinkage prevention.

5. The method for preparing a denim checkered fabric according to claim 4, characterized in that: The warping machine speed is 255-265 m / min, the warp beam is 460-465×11+465-470×1 beam, and the single yarn tension is 30-35 cN / strand.

6. The method for preparing a denim checkered fabric according to claim 4, characterized in that: The sizing process is double-sizing and double-pressing, and the sizing rate is 8-10%. The sizing formula is calculated by weight: 100 parts of corn starch, 4 parts of propylene and 4 parts of oil, with a solid content of 11.5%, and water is used as the solvent.

7. The method for preparing a denim checkered fabric according to claim 4, characterized in that: The drop wire threading method is 1, 2, 3, 4, 5, 6; 2 ground warps are inserted into each reed, and 2 side yarns are inserted into each reed.

8. The method for preparing a denim checkered fabric according to claim 4, characterized in that: The rapier loom has a speed of 500-600 r / min, a rear beam height of 90-100 mm, an opening time of 305-315°, and a machine tension of 3550-3650 N.

9. The method for preparing a denim checkered fabric according to claim 4, characterized in that: The finishing process is as follows: singeing → desizing → shrinkage prevention, and the cloth feeding sequence is: two positive and one negative, three fire ports; the shrinkage prevention machine speed is 40-50m / min.

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