Production method of original ecological spot texture fabric

Abstract

The invention relates to a production method of original ecological spot texture fabric, and belongs to the technical field of textile dyeing and finishing. Comprising the steps of spinning, bleaching and dyeing, singeing, desizing, mercerizing, super-softening, tentering, preshrinking and garment washing in sequence. According to the spinning process, part of spun yarn is used for recycling noil, 20-50 pieces of noil are mixed into 30%-40% of noil, 10-16 pieces of noil are mixed into 80% of noil, bleaching and dyeing are not bleached, only scouring is conducted, dyeing is not conducted, the color and luster of raw cotton are reserved, meanwhile, part of cottonseed hulls are reserved, irregular spot textures are presented, no chemical auxiliary agent harmful to the human body is added in the bleaching and dyeing process and the post-finishing process, and the production cost is reduced. The hand feeling bulkiness of the fabric is improved through air washing and garment washing. Noil is recycled through spinning and blended with conventional cotton, and resource waste is reduced; the processing time is shortened, dyeing wastewater is reduced, meanwhile, the color of raw cotton and part of cottonseed hulls are reserved, and the fabric is native, plain, green and environmentally friendly; and by combining super-soft empty patting and garment washing, the fabric is fluffy and soft in hand feeling, and the wearing comfort is improved.

Description

Technical Field

[0001] The present invention relates to a production method of a sustainable original ecological spotted texture fabric, belonging to the technical field of textile dyeing and finishing. Background Art

[0002] Cotton is an important natural fiber, with good moisture absorption and air permeability, soft hand feeling and comfortable wearing, so it is welcomed by the market. However, in the production of cotton yarn, 10%-30% of the waste becomes scraps, causing great waste. In dyeing and post-treatment, a large amount of printing and dyeing auxiliaries are used, which will generate some printing and dyeing wastewater, having a certain impact on the environment. With the continuous development of society, people's demand for reducing environmental pollution, resource waste and maintaining the original ecological wearing has increased. Therefore, an energy-saving, green and original ecological fabric has emerged.

[0003] Patent CN114318855 A collects waste clothing fabrics and obtains recycled cotton yarn through steps of crushing, carding, drawing and spinning. With a variety of chemical additives, it is not environmentally friendly enough, has limited colors and cannot meet customer needs. Summary of the Invention

[0004] According to the problems described in the background, the problems to be solved by the present invention are:

[0005] In the production of cotton yarn, 10%-30% of the waste becomes scraps, causing great waste, and a large amount of polluting chemical additives are added during the production process, which is not environmentally friendly enough.

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

[0007] A production method of a sustainable original ecological spotted texture fabric includes, in sequence, spinning, bleaching and dyeing, singeing, desizing, mercerizing, super softening, stentering, pre-shrinking and garment washing. In the spinning process, part of the recycled waste cotton is used. For 20-50 count, 30%-40% of the waste cotton is mixed in, and for 10-16 count, 80% of the waste cotton is mixed in. The bleaching and dyeing process does not bleach but only scouring, without dyeing, retaining the original color of the cotton, and at the same time retaining a part of the cottonseed hulls, presenting an irregular spotted texture. No chemical auxiliaries harmful to the human body are added in the bleaching and dyeing and post-treatment processes, and the hand feeling and fluffiness of the fabric are improved through air washing and garment washing.

[0008] Preferably, in the bleaching and dyeing process, chelating agent SQBLR: 0.5 g / L, scouring agent SAELR: 3.5 g / L, caustic soda 48°Be: 3.5 g / L, textile acid PH-X: 0.6 g / L, smoothing agent LUHowf: 3% are used.

[0009] Preferably, in the spinning process, the cotton and the waste need to be mixed twice. The speed of the grabber beater is 1000 r / min, the angle of the single-axial flow dust bar is 0°, the speed of the coiler beater is 1000 r / min, the gauge between the carding cylinder and the flats is 13 - 11 - 11 - 11 thou, the speed of the carding cylinder is 360 r / min, the speed of the carding licker-in is 750 r / min, the gauge of the pre-drawing frame is 40*44*48 mm, the gauge of the drawing frame is 40*48 mm, and the gauge of the roving frame is 37*48*50 mm.

[0010] Preferably, in the mercerizing process, the alkali concentration is 10 - 15 Baumé, the tension of the needle plate is 50 - 120 N, the vehicle speed is 50 - 70 m / min, the alkali temperature is 15 - 30 °C, the temperature of the water washing tank is 70 ± 10 °C, and the pH value of the fabric is 5 - 7.

[0011] Preferably, in the super softening process, the air volume of the main blower is 90, the air volume of the lower blower is 40, the vehicle speed is 10 - 15 m / min, and the empty beating time is 16 - 22 s.

[0012] Preferably, in the stentering process, the acid-base stability pH-X is 1 - 3 g / L, the temperature of the drying chamber of the stenter is 90 - 110 °C, the vehicle speed is 50 - 70 m / min, and the overfeed is 4.5%.

[0013] Preferably, for the ready-made garment washing, the general washing process is used, adding neutral cellulase: 2 g / L, penetrant WR-03: 0.5 ml / L, and soap oil: 0.5 ml / L, washing at 60 °C for 15 min, then rinsing, adding softener SML-P8: 2 - 4 ml / L, silicone oil: 1 - 1.5 ml / L, bulking agent CS-3: 2 - 3 ml / L, and glacial acetic acid: 0.5 - 1 ml / L, and washing at 40 °C for 30 min.

[0014] The beneficial effects of the present invention are as follows:

[0015] The present invention recovers the waste cotton in the spinning process and blends it with conventional cotton, reducing resource waste;

[0016] In the present invention, the bleaching and dyeing process does not involve dyeing and only scouring without bleaching, shortening the processing time, reducing the dyeing wastewater, and at the same time retaining the original cotton color and some cottonseed hulls. The fabric is natural, simple, and environmentally friendly;

[0017] By combining the super softening empty beating and the ready-made garment washing in the present invention, the fabric has a fluffy and soft hand feeling, improving the wearing comfort. Description of the Drawings

[0018] Figure 1 It is a diagram of the fabric made in Example 1

[0019] Figure 2 It is a diagram of the fabric made in the comparative example

[0020] Figure 3Fabric diagram prepared for Example 2 Detailed implementation method

[0021] Example 1

[0022] The test sample has the same color for warp and weft, and the fabric structure is 2 / 2 CP Oxford fabric. The warp yarn is L-CM40, and the weft yarn is L-CM10. The warp density is 110 threads per inch, and the weft density is 45 threads per inch.

[0023] The specific implementation steps are as follows:

[0024] Spinning: For the warp yarn, 70% of 20s cotton and 30% of waste cotton are mixed; for the weft yarn, 20% of 16s cotton and 80% of waste cotton are mixed.

[0025] Bleaching and dyeing: Only scouring is carried out without bleaching, and the cottonseed hulls are retained. The bleaching and dyeing auxiliaries used are chelating agent SQBLR: 0.5g / L, scouring agent SAELR: 3.5g / L, caustic soda 48°Be: 3.5g / L, textile acid PH-X: 0.6g / L, and smoothing agent LUHowf: 3%.

[0026] Singeing and desizing process: Singeing and desizing are carried out jointly. When singeing, cutting singeing is adopted, the flame intensity is 12mbar, the vehicle speed is 90m / min, and the fabric is singed on both sides, first the reverse side and then the front side; for desizing, enzymatic desizing is used, the dosage of desizing enzyme is 20g / L, the steaming box temperature is 98℃, the fabric stacking time in the steaming box is 5 minutes, the vehicle speed is 90m / min, and the temperature of the water washing tank is 90℃.

[0027] The concentration of mercerizing alkali is 15 Baumé, the needle plate tension is 120N, the vehicle speed is 70m / min, the alkali temperature is 15℃, the temperature of the water washing tank is 80℃, and the pH value of the fabric is 5.

[0028] The pH value of the pH-X for the acid-base stability in stentering is 1g / L, the temperature of the drying chamber of the stenter is 90℃, the vehicle speed is 70 meters per minute, and the overfeed is 4.5%.

[0029] For the super softening process, the air volume of the main blower is 90, the air volume of the lower blower is 40, the vehicle speed is 10m / min, and the empty shooting time is 22s.

[0030] For pre-shrinking, steam humidification is used, the temperature of the rubber blanket is 100℃, the temperature of the woolen blanket is 130℃, the pressure moment is 16mm, and the vehicle speed is 55m / min.

[0031] For garment washing, the general washing process is used, adding neutral cellulase: 2g / L, penetrant WR-03: 0.5ml / L, and soap oil 0.5ml / L, washing at 60℃ for 15min, then rinsing, adding softener SML-P8: 2ml / L, silicone oil 1.5ml / L, fluffing agent CS-3: 3ml / L, and glacial acetic acid: 1ml / L, washing at 40℃ for 30min.

[0032] In the spinning process, the cotton and the waste need to be mixed twice. The speed of the grabber beater is 1000 r / min, the angle of the single-axial flow dust bar is 0°, the speed of the coiler beater is 1000 r / min, the gauge between the carding cylinder and the flats is 13 - 11 - 11 - 11 thou, the speed of the carding cylinder is 360 r / min, the speed of the carding licker-in is 750 r / min, the gauge of the pre-drawing is 40*44*48 mm, the gauge of the drawing is 40*48 mm, and the gauge of the roving is 37*48*50 mm.

[0033] Example 2:

[0034] The sample has the same color for warp and weft, the weave is 2 / 2 twill, the warp yarn is L-CM16 / 2, the weft yarn is 16 / 2, the warp density is 60 ends per inch, and the weft density is 50 picks per inch.

[0035] The specific implementation steps are as follows:

[0036] The processing flow is in sequence: spinning → bleaching and dyeing → singeing → desizing → mercerizing → super softening → stentering → pre-shrinking → garment washing

[0037] Spinning: For the warp yarn, 70% of 20s cotton and 40% of waste cotton are mixed with SUP IMA. For the weft yarn, 20% of 10s cotton and 80% of waste cotton are mixed with fine count cotton.

[0038] Bleaching and Dyeing: Only scouring is carried out without bleaching, and the cottonseed hulls are retained. The bleaching and dyeing auxiliaries used are chelating agent SQBLR: 0.5 g / L, scouring agent SAELR: 3.5 g / L, caustic soda 48°Be: 3.5 g / L, textile acid PH-X: 0.6 g / L, and smoothing agent LUHowf: 3%.

[0039] Singeing and Desizing Processes: Singeing and desizing are carried out jointly. When singeing, cutting singeing is adopted, the flame intensity is 12 mbar, the vehicle speed is 90 m / min, and the fabric is singed on both sides, first on the reverse side and then on the front side; desizing is carried out by enzymatic desizing, the dosage of desizing enzyme is 15 g / L, the temperature of the steaming box is 98 °C, the stacking time of the fabric in the steaming box is 5 minutes, the vehicle speed is 90 m / min, and the temperature of the water washing tank is 90 °C.

[0040] The concentration of the mercerizing alkali is 10 Baumé, the needle plate tension is 50 N, the vehicle speed is 50 m / min, the temperature of the alkali is 30 °C, the temperature of the water washing tank is 60 °C, and the pH value of the fabric is 7.

[0041] The acid-base stabilizer pH-X for stentering is 3 g / L, the temperature of the drying chamber of the stenter is 130 °C, the vehicle speed is 50 m / min, and the overfeed is 4.0%.

[0042] In the super softening process, the air volume of the main fan is 90, the air volume of the lower fan is 40, the vehicle speed is 15 m / min, and the empty beat time is 16 s.

[0043] Pre-shrinking steam humidification, the temperature of the rubber blanket is 120 °C, the temperature of the woolen blanket is 130 °C, the nip is 16 mm, and the vehicle speed is 40 m / min.

[0044] For garment washing, the general washing process is used, adding neutral cellulase: 2 g / L, penetrant WR-03: 0.5 ml / L and soap oil 0.5 ml / L, washing at 60 °C for 15 min, then rinsing, adding softener SML-P8: 4 ml / L, silicone oil 1 ml / L, bulking agent CS-3: 2 ml / L and glacial acetic acid: 0.5 ml / L, washing at 40 °C for 30 min.

[0045] In the spinning process, the cotton and the waste need to be mixed twice. The speed of the cotton grabbing beater is 1000 r / min, the angle of the single-axial flow dust bar is 0°, the speed of the batching beater is 1000 r / min, the gauge between the carding cylinder and the flat is 13-11-11-11 thou, the speed of the carding cylinder is 360 r / min, the speed of the carding licker-in is 750 r / min, the gauge of the pre-drawing frame is 40*44*48 mm, the gauge of the drawing frame is 40*48 mm, and the gauge of the roving frame is 37*48*50 mm.

[0046] Comparative example:

[0047] The sample has the same color in warp and weft, the fabric structure is 2 / 2 CP oxford, the warp yarn is CM40, the weft yarn is CM10, the warp density is 110 threads per inch, and the weft density is 45 threads per inch.

[0048] The specific implementation steps are as follows:

[0049] The processing flow is in turn: spinning → bleaching and dyeing → singeing → desizing → mercerizing → super softening → stentering → pre-shrinking → garment washing

[0050] Spinning: 100% fine American cotton in both warp and weft directions.

[0051] Bleaching and dyeing: Only scouring, no bleaching, retaining the cottonseed hulls.

[0052] Singeing and desizing processes: Singeing and desizing are combined and driven. When singeing, cutting singeing is adopted, the flame intensity is 12 mbar, the vehicle speed is 90 m / min, the fabric is singed on both sides, first the back side and then the front side; desizing is carried out by enzymatic desizing, the dosage of desizing enzyme is 20 g / L, the temperature of the steaming box is 98 °C, the stacking time of the fabric in the steaming box is 5 minutes, the vehicle speed is 90 m / min, and the temperature of the water washing tank is 90 °C.

[0053] The concentration of the mercerizing alkali is 15 Baumé, the needle plate tension is 80 N, the vehicle speed is 55 m / min, the alkali temperature is 29 °C, the temperature of the water washing tank is 70 °C, and the pH value of the fabric is 5.9.

[0054] The pH value of the acid-base stability in stentering is pH-X: 2 g / L, the temperature of the drying room of the stenter is 110 °C, the vehicle speed is 55 m / min, and the overfeed is 4.5%.

[0055] For the super soft process, the air volume of the main blower is 90, the air volume of the lower blower is 40, the vehicle speed is 10 m / min, and the empty shooting time is 22 s.

[0056] For pre-shrinking steam humidification, the temperature of the rubber blanket is 100 °C, the temperature of the woolen blanket is 130 °C, the nip is 16 mm, and the vehicle speed is 55 m / min.

[0057] General washing process is used for ready-made clothing washing.

Claims

1. A method for producing a fabric with original spotted texture, characterized in that: The process includes spinning, bleaching and dyeing, singeing, desizing, mercerizing, super softening, stretching, pre-shrinking and garment washing in sequence; the spinning process uses part of the spinning recycled cotton, 20-50 counts are mixed with 30%-40% of the cotton waste, 10-16 counts are mixed with 80% of the cotton waste, bleaching and dyeing are not bleached but only scouring, and no dyeing is performed, so the color of the original cotton is retained, and a part of the cotton seed hull is retained to present an irregular spotted texture, and no chemical additives harmful to the human body are added in the bleaching, dyeing and post-finishing processes, and the feel and fluffiness of the fabric are improved through air washing and garment washing.

2. The method for producing a fabric with original spotted texture according to claim 1, characterized in that: The bleaching and dyeing process uses chelating agent SQBLR: 0.5g / L, refining agent SAELR: 3.5g / L, caustic soda 48°Be: 3.5g / L, textile acid PH-X: 0.6g / L, and smoothing agent LUHowf: 3%.

3. The method for producing a fabric with original spotted texture according to claim 1, characterized in that: In the spinning process, the cotton and the fallen objects need to be mixed twice, the cotton grabbing beater speed is 1000r / min, the single-axis dust flow bar angle is 0°, the rolling beater speed is 1000r / min, the carding cylinder cover plate gauge is 13-11-11-11 inches, the carding cylinder speed is 360r / min, the carding licker-in speed is 750r / min, the pre-drawing gauge is 40*44*48mm, the drawing gauge is 40*48mm, and the roving gauge is 37*48*50mm.

4. The method for producing a fabric with original spotted texture according to claim 1, characterized in that: The mercerizing process has an alkali concentration of 10-15 degrees Baume, a needle plate tension of 50-120N, a machine speed of 50-70 m / min, an alkali temperature of 15-30°C, a washing tank temperature of 70±10°C, and a fabric pH of 5-7.

5. The method for producing a fabric with original spotted texture according to claim 1, characterized in that: In the super-softening process, the main fan air volume is 90, the lower fan air volume is 40, the vehicle speed is 10-15m / min, and the idle shooting time is 16-22s.

6. The method for producing a fabric with original spotted texture according to claim 1, characterized in that: The acid-base stability pH-X of the tentering process is 1-3 g / L, the temperature of the tentering drying room is 90-110°C, the speed is 50-70 m / min, and the overfeed is 4.5%.

7. The method for producing a fabric with original spotted texture according to claim 1, characterized in that: The garment is washed using a general washing process, with 2 g / L of neutral cellulase, 0.5 ml / L of penetrant WR-03 and 0.5 ml / L of soap oil added, washed at 60°C for 15 min, then rinsed with water, 2-4 ml / L of softener SML-P8, 1-1.5 ml / L of silicone oil, 2-3 ml / L of bulking agent CS-3 and 0.5-1 ml / L of glacial acetic acid added, washed at 40°C for 30 min.

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