Color changing woven fabric and preparation method thereof

Abstract

The invention relates to the technical field of textile, provides a color changing woven fabric and a preparation method thereof, and solves the problems that an existing woven fabric is single in appearance style, cannot present different color developing effects in different areas from different angles, is relatively poor in color fastness, needs to be dyed, and is not environment-friendly. Comprising a fabric body, the fabric body is formed by weaving warp yarns and weft yarns, the warp yarns comprise cross warp yarns and ground warp yarns, the weft yarns comprise first weft yarns, second weft yarns, third weft yarns, fourth weft yarns and fifth weft yarns, and the first weft yarns, the second weft yarns, the third weft yarns and the fourth weft yarns are different in color; the fifth weft yarns are TPU high-strength covering yarns; the fabric body has a color changing effect, the fourth weft yarn is located above the first weft yarn, and the third weft yarn is located below the first weft yarn; and the exposed area of the fourth weft yarns can be increased or decreased.

Description

Technical Field

[0001] The invention relates to the technical field of textiles, and in particular to a magic color woven fabric and a preparation method thereof. Background Art

[0002] Woven fabrics are made by weaving yarns in warp and weft directions in a loom in the form of shuttle throwing. Therefore, they have the advantages of flat surface, compact structure, durability, and not easy to wear and deform. They are widely used in clothing, home textiles and shoes. However, their surface style is single and there are not many changes in visual level. Therefore, it is necessary to break through conventional woven products and innovate woven fabrics.

[0003] Chinese patent application No. 202420422912.7 discloses a breathable woven polyester fabric, comprising: a surface layer and an inner layer; the inner layer is arranged on one side of the surface layer; the surface layer is interwoven by warp yarns and weft yarns; the warp yarns and the weft yarns are both wear-resistant, hydrophilic and breathable polyester yarns; the inner layer is interwoven by warp yarns and weft yarns; the warp yarns and the weft yarns are both skin-friendly, hydrophobic and breathable polyester yarns. The warp and weft yarns of the surface layer of the fabric are wear-resistant, hydrophilic and breathable polyester yarns, which have good wear resistance, hydrophilicity and breathability; the warp and weft yarns of the inner layer are skin-friendly, hydrophobic and breathable polyester yarns, which have good skin-friendliness, hydrophobicity and breathability. The surface layer is wear-resistant as the outer layer of clothing, which can increase the life of clothing, and the inner layer is skin-friendly as the inner layer of clothing, which can increase the comfort of clothing. At the same time, the surface layer is hydrophilic and the inner layer is hydrophobic, forming a hydrophilic and hydrophobic structure, which can discharge the sweat produced by the human body in time, and has excellent moisture absorption and perspiration ability. However, the woven fabric has a single appearance and style and cannot present different color rendering effects in different areas and from different angles.

[0004] Chinese patent application No. 202410565513.0 discloses a production process for a nylon-cotton yarn-dyed four-way high-elastic woven fabric, including the following processes: pattern organization specification design → warp and weft yarn processing → weaving → fabric finishing; in the warp and weft yarn processing process, the processing flow of the warp yarn is: loose winding → dyeing → tight winding → warping; the processing flow of the weft yarn is: loose winding → cheese yarn dyeing → tight winding; the fabric finishing process is: seam head → singeing → cross-desizing → drying → pre-stretching → dry setting → color cloth rolling → pre-shrinking → finished product. Through process design, the invention achieves high elasticity in the warp and weft directions of the fabric, improves wearing comfort; at the same time, simplifies the production process and reduces energy consumption; the fabric produced has a soft touch, strong water absorption and quick drying, is easy to care for, and effectively resists wrinkles. However, the yarn of the invention needs to be dyed, which will cause pollution and is relatively environmentally unfriendly. Summary of the invention

[0005] Therefore, in view of the above problems, the present invention provides a fantasy color woven fabric and a preparation method thereof, which solves the problems that the existing woven fabric has a single appearance style, cannot present different color rendering effects in different areas and from different angles, has relatively poor color fastness, and the yarn or grey cloth needs to be dyed, which is not environmentally friendly.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A fantasy color woven fabric, comprising a fabric body, wherein the fabric body is woven by warp yarns and weft yarns, wherein the warp yarns comprise twisted warps and ground warps, wherein the twisted warps are threaded with a 0.3 mm high and low temperature TPU composite low elastic monofilament, and the ground warps are threaded with six 0.12 mm TPEE*2 folding-resistant yarns; the weft yarns comprise a first weft yarn, a second weft yarn, a third weft yarn, a fourth weft yarn, and a fifth weft yarn; the first weft yarn, the second weft yarn, the third weft yarn, and the fourth weft yarn are all polyester DTY333dtex / 72F yarns, and the first weft yarn, the second weft yarn, the third weft yarn, and the fourth weft yarn have different colors; the fifth weft yarn is a TPU high-strength core-spun yarn;

[0008] The fabric body has a fantasy color effect, the fourth weft yarn is located above the first weft yarn, and the third weft yarn is located below the first weft yarn; the exposed area of ​​the fourth weft yarn can be increased or decreased; when the leading sheath lifting mechanism of the one or more 0.12mm TPEE*2 folding-resistant wires is lifted, two fourth weft yarns are continuously woven in, and the exposed area is increased; when the leading sheath lifting mechanism of the one or more 0.12mm TPEE*2 folding-resistant wires is lifted, only one fourth weft yarn is woven in, and then all six 0.12mm TPEE*2 folding-resistant wires are lifted, and then one fourth weft yarn is woven in, and the exposed area is reduced.

[0009] Furthermore, the specification of the 0.3mm high and low temperature TPU composite low-elastic monofilament is 900D, and the number of warp yarns is 772.

[0010] Furthermore, the number of warp yarns of the 0.12mm TPEE*2 folding-resistant yarn is 4632.

[0011] Furthermore, the colors of the first weft yarn, the second weft yarn, the third weft yarn and the fourth weft yarn are blue, white, gray and pink respectively; and the colors of the twisted warp, the ground warp and the fifth weft yarn are all transparent.

[0012] Furthermore, the weft yarns include a first weft yarn, a second weft yarn, a third weft yarn, a fourth weft yarn and a fifth weft yarn, and the shuttle numbers thereof are 410, 410, 206, 204 and 102 respectively.

[0013] Furthermore, the specification of the fifth weft yarn is 500D.

[0014] Furthermore, the polyester DTY333dtex / 72F yarn is spun from masterbatch.

[0015] A method for preparing a magic color woven fabric comprises the following steps:

[0016] S1. Selection of raw material yarns: including 0.3mm high and low temperature TPU composite low elastic monofilament, 0.12mm TPEE*2 folding-resistant yarn, polyester DTY333dtex / 72F yarn, TPU high-strength core-spun yarn;

[0017] Among them, the high-low temperature TPU composite low-elastic monofilament used as the raw material has a skin-core structure, with 190℃ high melting point TPU as the core layer and 170℃ low melting point TPU as the skin layer. When the setting temperature is higher than 170℃, the core layer does not melt, and the skin layer melts and solidifies to bond the woven warp and weft points to prevent them from falling apart and slipping.

[0018] S2, using a shuttle weaving machine with six twists to weave the grey cloth;

[0019] S3, pre-forming the grey cloth, and then washing it in open width, setting it by stretching, color approval, inspection, packaging and storage to obtain a woven fabric containing a phantom color;

[0020] The shaping process uses hot air dry heat shaping method, with high temperature and fast pre-shaping and slightly lower temperature and slow shaping for finished product stretching, so that the surface of the finished product is stable during shaping, and the internal structure of the raw material will not be damaged, thus extending the service life of the fabric.

[0021] The fabric is woven from colored yarn and does not require post-dyeing treatment. It only needs to be washed in open width. At the same time, the fabric is degreased and modified with auxiliaries, which saves energy, labor and time costs, reduces pollution emissions, and is environmentally friendly.

[0022] Furthermore, the warp density of the phantom color woven fabric is 36 strands / cm, the finished product density is 18 shuttles / cm, and the gram weight is 337g / m 2 .

[0023] By adopting the above technical solution, the beneficial effects of the present invention are:

[0024] 1. The polyester DTY333dtex / 72F yarn is spun from masterbatch, and the yarn has stable color and good color fastness. The grey cloth does not need to be dyed, which saves energy and manpower while reducing pollution to the environment.

[0025] 2. Use four colored yarns spun from masterbatch, that is, the first weft yarn, the second weft yarn, the third weft yarn and the fourth weft yarn have different colors. Use the one-skein six-skein technology with the independent faucet lifting technology to weave different numbers of colored yarns in sequence when opening, and weave a fantasy color woven fabric that presents different color effects in different areas and from different angles. In one skein group, the skein warp wears a 0.3mm high and low temperature TPU composite low elastic monofilament, and the ground warp wears six 0.12mm TPEE*2 folding-resistant yarns. In each skein group, four colors of colored yarns are woven in sequence in the weft direction, and two of each color yarn are woven. In the area where the fabric presents a fantasy color effect, the first weft yarn is always in the middle position, and the upper and lower sides are the fourth weft yarn and the third weft yarn respectively, so different colors are presented from both sides of the fabric. The exposed area of ​​the fourth weft yarn (pink) can be increased. When the faucet lifting mechanism of one or more 0.12mm TPEE*2 folding-resistant yarns is lifted, two of the fourth weft yarns are woven in continuously, that is, the exposed area of ​​the fourth weft yarn is increased. The exposed area of ​​the fourth weft yarn (pink) can be reduced. When the leading sheath lifting mechanism of one or more 0.12mm TPEE*2 folding-resistant wires is lifted, only one of the fourth weft yarns is woven in, and then all six 0.12mm TPEE*2 folding-resistant wires are lifted, and then another fourth weft yarn is woven in, hidden under the magic color area, and the exposed area is reduced.

[0026] 3. Use a high-low temperature TPU composite low-elastic monofilament with a core-skin structure, with a high melting point TPU of 190℃ as the core layer and a low melting point TPU of 170℃ as the skin layer. When the setting temperature is higher than 170℃, the core layer does not melt, and the skin layer melts and solidifies, bonding the warp and weft points of the woven warp and weft to prevent the warp and weft yarns from falling apart and stabilize the color illusion effect. The specification of the high-low temperature TPU composite low-elastic monofilament is 900D, which has sufficient strength to ensure continuous twisting without yarn breakage.

[0027] 4. The TPEE*2 fold-resistant yarn and high-low temperature TPU composite low-elastic monofilament are transparent, soft and fold-resistant, which can not only retain the original color of the colored yarn to the maximum extent, but also enhance the strength and wear resistance of the fabric.

[0028] 5. The woven fabric prepared by this technical solution combines the advantages of magical splendor, fashionable coolness, breathable yarn holes, green environmental protection, durability, crispness and non-deformation, etc. It is suitable for shoe materials and is deeply loved by consumers. The development and application of fantasy color woven fabrics enriches the appearance of woven fabrics, integrating technology and fashion. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a weaving schematic diagram of increasing the exposed area of ​​the fourth weft yarn in Example 1 to Example 2 of the present invention;

[0030] Figure 2 It is a structural schematic diagram of the skin-core structure in Examples 1 to 3 of the present invention;

[0031] Figure 3 It is a schematic diagram of weaving in which the exposed area of ​​the fourth weft yarn is reduced in Embodiment 1 to Embodiment 2 of the present invention;

[0032] Explanation of the numbers in the figure: 1-first weft yarn, 2-third weft yarn, 3-fourth weft yarn, 4-core layer, 5-skin layer. DETAILED DESCRIPTION

[0033] Example 1

[0034] A fantasy color woven fabric, comprising a fabric body, wherein the fabric body is woven by warp yarns and weft yarns, wherein the warp yarns comprise twisted warps and ground warps, wherein the twisted warps are threaded with a 0.3 mm high and low temperature TPU composite low elastic monofilament, and the ground warps are threaded with six 0.12 mm TPEE*2 folding-resistant yarns; the weft yarns comprise a first weft yarn 1, a second weft yarn, a third weft yarn 2, a fourth weft yarn 3, and a fifth weft yarn; the first weft yarn, the second weft yarn, the third weft yarn, and the fourth weft yarn are all polyester DTY333dtex / 72F yarns, and the first weft yarn, the second weft yarn, the third weft yarn, and the fourth weft yarn are different in color; the fifth weft yarn is a TPU high-strength core-spun yarn;

[0035] refer to Figure 1 The fabric body has a phantom color effect, the fourth weft yarn 3 is located above the first weft yarn 1, and the third weft yarn 2 is located below the first weft yarn 1; the exposed area of ​​the fourth weft yarn 3 can be increased, and when the faucet lifting mechanism of the one or more 0.12mm TPEE*2 folding-resistant wires is lifted, two fourth weft yarns 3 are continuously woven in, that is, the exposed area of ​​the fourth weft yarn 3 is increased.

[0036] Among them, the specification of the 0.3mm high and low temperature TPU composite low-elastic monofilament is 900D, and the number of warp yarns is 772; the number of warp yarns of the 0.12mm TPEE*2 folding-resistant yarn is 4632; the colors of the first weft yarn, the second weft yarn, the third weft yarn and the fourth weft yarn are blue, white, gray and pink respectively; the colors of the twisted warp, the ground warp and the fifth weft yarn are all transparent; the shuttle numbers of the weft yarns including the first weft yarn, the second weft yarn, the third weft yarn, the fourth weft yarn and the fifth weft yarn are 410, 410, 206, 204 and 102 respectively; the specification of the fifth weft yarn is 500D.

[0037] The method for preparing the above-mentioned magic color woven fabric comprises the following steps:

[0038] (1) Selection of raw yarn

[0039] The specifications used are 0.3mm high and low temperature TPU composite low elastic monofilament, 0.12mm TPEE*2 folding-resistant yarn, polyester DTY333dtex / 72F yarn, and TPU high-strength core-spun yarn;

[0040] Among them, reference Figure 2 The high-low temperature TPU composite low-elastic monofilament is a skin-core structure, which includes an inner core layer 4 and an outer skin layer 5, the melting point of the core layer 4 is higher than the melting point of the skin layer 5; the melting point of the core layer 4 is 190°C, and the melting point of the skin layer 5 is 170°C;

[0041] (2) Weaving

[0042] Use a shuttle-woven heddle and six-hook machine to weave the grey cloth;

[0043] (3) Pre-order type

[0044] The grey cloth is subjected to a pre-setting treatment, and the pre-setting machine adopts the EAG-2000-CBR-0 Taiwan Ligen setting machine. This setting machine adopts high-temperature hot air setting technology, so that the hot air acts evenly on the front and back sides of the fabric. When the temperature in the closed oven of the setting machine is higher than the glass transition temperature of the fabric, the polymer inside the fiber raw material is reorganized, thereby changing the surface size of the fabric. The grey cloth is fed into the setting machine along the weaving direction, and firstly, the setting size of the fabric is stretched or shrunk by the overfeed roller device and the needle clip chain stretching device, and then it is set through multiple dry heat closed oven devices. The set fabric is cooled and the pre-setting is completed. The pre-setting temperature is set at 150°C, and the input fabric speed is set at 15 yards / min, so that the TPU cortex can be fully melted without affecting the setting effect of the cloth surface;

[0045] (4) Open-width washing

[0046] Dye auxiliaries are used for open-width water washing. The formula of dye auxiliaries includes: 3% refining agent, 4% degreasing agent 119, 2% degreasing agent Z83, 4% chelating dispersant, and the balance is water. The open-width water washing speed is 12 yards / min. At 60°C, the refining agent is first added to box one and stirred to mix evenly; then the temperature is raised to 80°C, and degreasing agent Z83 and chelating dispersant are added to remove impurities; then after hot boiling in boxes three and four, the cloth is transferred to box five, and the temperature is lowered to 60°C for washing; the temperature in box six is ​​lowered to room temperature, and water is squeezed and dried, and finally the cloth is discharged; the refining agent and degreasing agent 119 are used to remove impurities, stains and oil stains on the surface of the fabric, and the chelating dispersant is used to prevent the generation of metal ion precipitation from affecting the color of the fabric, thereby improving the water washing effect;

[0047] (5) Tentering and shaping

[0048] The principle of tentering setting is basically the same as that of pre-setting, and the most important difference lies in the setting temperature and setting time. The setting machine uses EAG-2300-CBR-0 Taiwan Ligen setting machine, the tentering setting temperature is set at 140℃ to prevent TPU from melting again, and the input speed of the fabric is set at 12 yards / min;

[0049] (6) Then, the process of color approval, inspection, packaging and storage is carried out to obtain a magic color woven fabric, wherein the warp density of the magic color woven fabric is 36 strands / cm, the finished product density is 18 shuttles / cm, and the gram weight is 337 g / m 2 .

[0050] Example 2

[0051] A fantasy color woven fabric, comprising a fabric body, wherein the fabric body is woven by warp yarns and weft yarns, wherein the warp yarns comprise twisted warps and ground warps, wherein the twisted warps are threaded with a 0.3 mm high and low temperature TPU composite low elastic monofilament, and the ground warps are threaded with six 0.12 mm TPEE*2 folding-resistant yarns; the weft yarns comprise a first weft yarn 1, a second weft yarn, a third weft yarn 2, a fourth weft yarn 3, and a fifth weft yarn; the first weft yarn, the second weft yarn, the third weft yarn, and the fourth weft yarn are all polyester DTY333dtex / 72F yarns, and the first weft yarn, the second weft yarn, the third weft yarn, and the fourth weft yarn have different colors; the fifth weft yarn is a TPU high-strength core-spun yarn;

[0052] refer to Figure 3 The fabric body has a fantasy color effect, the fourth weft yarn 3 is located above the first weft yarn 1, and the third weft yarn 2 is located below the first weft yarn 1; the exposed area of ​​the fourth weft yarn 3 can be reduced, and when the leading heald lifting mechanism of the one or more 0.12mm TPEE*2 folding-resistant wires is lifted, only one fourth weft yarn 3 is woven in, and then all six 0.12mm TPEE*2 folding-resistant wires are lifted, and then one fourth weft yarn 3 is woven in, that is, the exposed area of ​​the fourth weft yarn 3 is reduced.

[0053] Among them, the specification of the 0.3mm high and low temperature TPU composite low-elastic monofilament is 900D, and the number of warp yarns is 772; the number of warp yarns of the 0.12mm TPEE*2 folding-resistant yarn is 4632; the colors of the first weft yarn, the second weft yarn, the third weft yarn and the fourth weft yarn are blue, white, gray and pink respectively; the colors of the twisted warp, the ground warp and the fifth weft yarn are all transparent; the shuttle numbers of the weft yarns including the first weft yarn, the second weft yarn, the third weft yarn, the fourth weft yarn and the fifth weft yarn are 410, 410, 206, 204 and 102 respectively; the specification of the fifth weft yarn is 500D.

[0054] The method for preparing the above-mentioned magic color woven fabric comprises the following steps:

[0055] (1) Selection of raw yarn

[0056] The specifications used are 0.3mm high and low temperature TPU composite low elastic monofilament, 0.12mm TPEE*2 folding-resistant yarn, polyester DTY333dtex / 72F yarn, and TPU high-strength core-spun yarn;

[0057] Among them, reference Figure 2 The high-low temperature TPU composite low-elastic monofilament is a skin-core structure, which includes an inner core layer 4 and an outer skin layer 5, the melting point of the core layer 4 is higher than the melting point of the skin layer 5; the melting point of the core layer 4 is 190°C, and the melting point of the skin layer 5 is 170°C;

[0058] (2) Weaving

[0059] Use a shuttle-woven heddle and six-hook machine to weave the grey cloth;

[0060] (3) Pre-order type

[0061] The grey cloth is subjected to a pre-setting treatment, and the pre-setting machine adopts the EAG-2000-CBR-0 Taiwan Ligen setting machine. This setting machine adopts high-temperature hot air setting technology, so that the hot air acts evenly on the front and back sides of the fabric. When the temperature in the closed oven of the setting machine is higher than the glass transition temperature of the fabric, the polymer inside the fiber raw material is reorganized, thereby changing the surface size of the fabric. The grey cloth is fed into the setting machine along the weaving direction, and firstly, the setting size of the fabric is stretched or shrunk by the overfeed roller device and the needle clip chain stretching device, and then it is set through multiple dry heat closed oven devices. The set fabric is cooled and the pre-setting is completed. The pre-setting temperature is set at 170°C, and the input fabric speed is set at 15 yards / min, so that the TPU cortex can be fully melted without affecting the setting effect of the cloth surface;

[0062] (4) Open-width washing

[0063] Dye auxiliaries are used for open-width water washing. The formula of dye auxiliaries includes: 3% refining agent, 5% degreasing agent 119, 3% degreasing agent Z83, 5% chelating dispersant, and the balance is water. The open-width water washing speed is 13 yards / min. At 60°C, the refining agent is first added to box one and stirred to mix evenly; then the temperature is raised to 80°C, and degreasing agent Z83 and chelating dispersant are added to remove impurities; then after hot boiling in boxes three and four, the cloth is transferred to box five, and the temperature is lowered to 60°C for washing; the temperature in box six is ​​lowered to room temperature, and water is squeezed and dried, and finally the cloth is discharged; the refining agent and degreasing agent 119 are used to remove impurities, stains and oil stains on the surface of the fabric, and the chelating dispersant is used to prevent the generation of metal ion precipitation from affecting the color of the fabric, thereby improving the water washing effect;

[0064] (5) Tentering and shaping

[0065] The principle of tentering setting is basically the same as that of pre-setting, and the most important difference lies in the setting temperature and setting time. The setting machine uses EAG-2300-CBR-0 Taiwan Ligen setting machine, the tentering setting temperature is set at 150℃ to prevent TPU from melting again, and the input speed of the fabric is set at 12 yards / min;

[0066] (6) Then, the process of color approval, inspection, packaging and storage is carried out to obtain a magic color woven fabric, wherein the warp density of the magic color woven fabric is 36 strands / cm, the finished product density is 18 shuttles / cm, and the gram weight is 337 g / m 2 .

[0067] Example 3

[0068] A fantasy color woven fabric, comprising a fabric body, wherein the fabric body is woven by warp yarns and weft yarns, wherein the warp yarns comprise twisted warps and ground warps, wherein the twisted warps are threaded with a 0.3 mm high and low temperature TPU composite low elastic monofilament, and the ground warps are threaded with six 0.12 mm TPEE*2 folding-resistant yarns; the weft yarns comprise a first weft yarn, a second weft yarn, a third weft yarn, a fourth weft yarn, and a fifth weft yarn; the first weft yarn, the second weft yarn, the third weft yarn, and the fourth weft yarn are all polyester DTY333dtex / 72F yarns, and the first weft yarn, the second weft yarn, the third weft yarn, and the fourth weft yarn have different colors; the fifth weft yarn is a TPU high-strength core-spun yarn;

[0069] The fabric body has a fantasy color effect, the fourth weft yarn is located above the first weft yarn, and the third weft yarn is located below the first weft yarn; the exposed area of ​​the fourth weft yarn can be increased, and when the leading heald lifting mechanism of the one or more 0.12mm TPEE*2 folding-resistant wires is lifted, two fourth weft yarns are continuously woven in, that is, the exposed area of ​​the fourth weft yarn is increased.

[0070] Among them, the specification of the 0.3mm high and low temperature TPU composite low-elastic monofilament is 900D, and the number of warp yarns is 772; the number of warp yarns of the 0.12mm TPEE*2 folding-resistant yarn is 4632; the colors of the first weft yarn, the second weft yarn, the third weft yarn and the fourth weft yarn are blue, white, gray and pink respectively; the colors of the twisted warp, the ground warp and the fifth weft yarn are all transparent; the shuttle numbers of the weft yarns including the first weft yarn, the second weft yarn, the third weft yarn, the fourth weft yarn and the fifth weft yarn are 410, 410, 206, 204 and 102 respectively; the specification of the fifth weft yarn is 500D.

[0071] The method for preparing the above-mentioned magic color woven fabric comprises the following steps:

[0072] (1) Selection of raw yarn

[0073] The specifications used are 0.3mm high and low temperature TPU composite low elastic monofilament, 0.12mm TPEE*2 folding-resistant yarn, polyester DTY333dtex / 72F yarn, and TPU high-strength core-spun yarn;

[0074] Among them, reference Figure 2The high-low temperature TPU composite low-elastic monofilament is a skin-core structure, which includes an inner core layer 4 and an outer skin layer 5, the melting point of the core layer 4 is higher than the melting point of the skin layer 5; the melting point of the core layer 4 is 190°C, and the melting point of the skin layer 5 is 170°C;

[0075] (2) Weaving

[0076] Use a shuttle-woven heddle and six-hook machine to weave the grey cloth;

[0077] (3) Pre-order type

[0078] The grey cloth is pre-shaped, and the pre-shaped machine adopts EAG-2000-CBR-0 Taiwan Ligen shaping machine. This shaping machine adopts high-temperature hot air shaping technology, so that the hot air acts evenly on the front and back sides of the fabric. When the temperature in the closed oven of the shaping machine is higher than the glass transition temperature of the fabric, the polymer inside the fiber raw material is reorganized, thereby changing the surface size of the fabric. The grey cloth is fed into the shaping machine along the weaving direction, and firstly, the shaping size of the fabric is stretched or shrunk by the overfeed roller device and the needle clip chain stretching device, and then it is shaped by multiple dry heat closed oven devices. After the shaped fabric is cooled, the pre-shaped is completed. The pre-shaping temperature is set at 180°C, and the input fabric speed is set at 15 yards / min, so that the TPU cortex can be fully melted without affecting the shaping effect of the cloth surface;

[0079] (4) Open-width washing

[0080] Dye auxiliaries are used for open-width water washing. The formula of dye auxiliaries includes: 5% refining agent, 6% degreasing agent 119, 3% degreasing agent Z83, 6% chelating dispersant, and the balance is water. The open-width water washing speed is 15 yards / min. At 60°C, the refining agent is first added to box one and stirred to mix evenly; then the temperature is raised to 80°C, and degreasing agent Z83 and chelating dispersant are added to remove impurities; then after hot boiling in boxes three and four, the cloth is transferred to box five, and the temperature is lowered to 60°C for washing; the temperature in box six is ​​lowered to room temperature, and water is squeezed and dried, and finally the cloth is discharged; the refining agent and degreasing agent 119 are used to remove impurities, stains and oil stains on the surface of the fabric, and the chelating dispersant is used to prevent the generation of metal ion precipitation from affecting the color of the fabric, thereby improving the water washing effect;

[0081] (5) Tentering and shaping

[0082] The principle of tentering setting is basically the same as that of pre-setting, and the most important difference lies in the setting temperature and setting time. The setting machine uses EAG-2300-CBR-0 Taiwan Ligen setting machine, the tentering setting temperature is set at 160℃ to prevent TPU from melting again, and the input speed of the fabric is set at 12 yards / min;

[0083] (6) Then, the process of color approval, inspection, packaging and storage is carried out to obtain a magic color woven fabric, wherein the warp density of the magic color woven fabric is 36 strands / cm, the finished product density is 18 shuttles / cm, and the gram weight is 337 g / m 2 .

[0084] Table 1 is the test results of the product of Example 1.

[0085]

[0086]

[0087] As can be seen from Table 1, the color fastness of the fantasy color woven fabric prepared by this technical solution, such as resistance to dry and wet friction, sweat and soap washing, all reach 4-5 levels or above, indicating that the colored yarn has very good color fastness; the fabric bursting strength is greater than 2000kPa and the tear strength is high, indicating that the fabric strength is very good. The fabric is wear-resistant up to level 4, and the folding performance at room temperature and low temperature is intact without damage, indicating that the fabric has very good wear and folding resistance. All the test indicators of the fabric meet the requirements of the upper material, so the fabric quality meets the predetermined design requirements of the project.

[0088] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A magic color woven fabric, characterized in that: The fabric body is formed by weaving warp yarns and weft yarns. The warp yarns include twisted warps and ground warps. The twisted warps are covered with a 0.3mm high-low temperature TPU composite low-elastic monofilament. The ground warps are covered with six 0.12mm TPEE*2 folding-resistant yarns. The weft yarns include a first weft yarn, a second weft yarn, a third weft yarn, a fourth weft yarn and a fifth weft yarn. The first weft yarn, the second weft yarn, the third weft yarn and the fourth weft yarn are all polyester DTY333dtex / 72F yarns, and the first weft yarn, the second weft yarn, the third weft yarn and the fourth weft yarn are different in color. The fifth weft yarn is a TPU high-strength core-spun yarn. The fabric body has a fantasy color effect, the fourth weft yarn is located above the first weft yarn, and the third weft yarn is located below the first weft yarn; the exposed area of ​​the fourth weft yarn can be increased or decreased; when the leading sheath lifting mechanism of the one or more 0.12mm TPEE*2 folding-resistant wires is lifted, two fourth weft yarns are continuously woven in, and the exposed area is increased; when the leading sheath lifting mechanism of the one or more 0.12mm TPEE*2 folding-resistant wires is lifted, only one fourth weft yarn is woven in, and then all six 0.12mm TPEE*2 folding-resistant wires are lifted, and then one fourth weft yarn is woven in, and the exposed area is reduced.

2. The magic color woven fabric according to claim 1, characterized in that: The specification of the 0.3mm high and low temperature TPU composite low-elastic monofilament is 900D, and the number of warp yarns is 772.

3. The magic color woven fabric according to claim 1, characterized in that: The number of warp yarns of the 0.12mm TPEE*2 folding-resistant yarn is 4632.

4. The magic color woven fabric according to claim 1, characterized in that: The colors of the first weft yarn, the second weft yarn, the third weft yarn and the fourth weft yarn are blue, white, gray and pink respectively; the colors of the twisted warp, the ground warp and the fifth weft yarn are all transparent.

5. The magic color woven fabric according to claim 1, characterized in that: The weft yarns include a first weft yarn, a second weft yarn, a third weft yarn, a fourth weft yarn and a fifth weft yarn, and the shuttle numbers thereof are 410, 410, 206, 204 and 102 respectively.

6. The magic color woven fabric according to claim 1, characterized in that: The specification of the fifth weft yarn is 500D.

7. The magic color woven fabric according to claim 1, characterized in that: The polyester DTY333dtex / 72F yarn is spun from masterbatch.

8. A method for preparing a magic color woven fabric, characterized in that: The following steps are involved: S1. Selection of raw material yarns: including 0.3mm high and low temperature TPU composite low elastic monofilament, 0.12mm TPEE*2 folding-resistant yarn, polyester DTY333dtex / 72F yarn, TPU high-strength core-spun yarn; S2, using a shuttle weaving machine with six twists to weave the grey cloth; S3, pre-forming the grey cloth, and then going through the processes of open-width washing, tentering and shaping, color approval, inspection, packaging and storage to obtain a woven fabric containing fantasy colors.

9. The method for preparing a magic color woven fabric according to claim 8, characterized in that: The warp density of the phantom color woven fabric is 36 strands / cm, the finished product density is 18 shuttles / cm, and the gram weight is 337g / m 2 .

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