High-wear-resistance cotton nylon elastic fabric pad dyeing process

Abstract

The invention discloses a pad dyeing process for a high-wear-resistance cotton nylon elastic fabric, and belongs to the technical field of fabric dyeing. The pretreatment adopts short steaming and low-temperature boiling-off, the dyeing adopts an acid + reduction / active two-bath process, and the after-treatment adopts high-temperature tentering and preshrinking, high-pressure, low-speed and other means; the cotton nylon elastic fabric produced through the technology is uniform and full in cloth cover and small and stable in shrinkage rate, and finally the quality and serviceability of the cotton nylon elastic fabric are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of fabric dyeing, and in particular relates to a pad dyeing process for a highly wear-resistant cotton nylon stretch fabric. Background Art

[0002] Cotton nylon is a highly wear-resistant fabric, generally used for outdoor use; as people's requirements for fabric comfort increase, cotton nylon stretch fabric has been developed; but this variety is prone to large shrinkage in pad dyeing production, which seriously affects production efficiency. Summary of the invention

[0003] In view of the above-mentioned prior art, the present invention provides a high wear-resistant cotton nylon stretch fabric pad dyeing process to solve the problem of large fabric shrinkage rate that is prone to occur in pad dyeing production.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is to provide a high wear-resistant cotton nylon stretch fabric pad dyeing process, comprising the following steps: (1) Pretreatment: The incoming blanks are subjected to cloth turning and seam treatment in sequence, and then dipped into the scouring and bleaching working solution at a speed of 70-90 m / min, with a liquid rate of 80-90%; then stacked in a steamer at 85-95°C for 55-65 min, and then washed with hot water at 80-90°C, and finally dried, shaped, singed, mercerized, washed, dried and dropped in sequence to obtain semi-finished products; the scouring and bleaching working solution includes the following components in concentrations: 7-8 g / L caustic soda, 7-8 g / L hydrogen peroxide, 3-5 g / L refining agent, 1-3 g / L chelating agent and 8-12 g / L water glass; (2) Dyeing: The semi-finished product is dipped into an acid dye solution at room temperature, with a liquid content of 40-45%, and then subjected to hot air drying, baking and cold water roller cooling treatment, and then dipped into a color fixing solution, and then steamed at 100-102°C for color fixing, and finally sequentially subjected to cold water washing, hot water washing, water washing, drying and cloth dropping treatment to obtain a first dyed semi-finished product; then dipped into a reduction dye solution, and then sequentially subjected to hot air drying and cold water roller cooling treatment, and then dipped into a reduction solution, and then steamed for color development, water washing and drying to obtain a dyed semi-finished product; (3) Finishing: The dyed semi-finished product is dipped into the finishing working liquid, and then subjected to photoelectric weft straightening, tentering machine baking, cold water roller cooling, water mist moistening, pre-shrinking finishing, drying, cold water roller cooling and cloth dropping treatment in sequence.

[0005] Based on the above technical solution, the present invention can also be improved as follows.

[0006] Furthermore, the scouring and bleaching working solution includes components with the following concentrations: 7 g / L caustic soda, 8 g / L hydrogen peroxide, 4 g / L refining agent, 2 g / L chelating agent and 10 g / L water glass.

[0007] Furthermore, the refining agent is sodium dodecylbenzene sulfonate, and the chelating agent is ethylenediaminetetraacetic acid or diethylenetriaminepentaacetic acid.

[0008] Furthermore, in step (1), the shaping speed is 85-95 m / min, the shaping temperature is 180-200° C., and the overfeed speed difference is 11 m / min.

[0009] Furthermore, in step (1), the mercerizing process is to immerse the singed fabric in a caustic soda solution with a concentration of 180-200 g / L, ventilate for 60 seconds, and then steam-dry the fabric at 80° C. using a five-wash and five-flushing method to remove the alkali.

[0010] Further, the acidic stain solution includes the following components in concentrations: Dye 5~6g / L, acetic acid 1g / L and acid dyeing agent ZJ-RH08 0.4g / L; The temperature of baking after immersion in the acid dye solution in step (2) is 180°C.

[0011] Further, the fixing solution includes the following components in concentration: Acidic fixing agent ZJ-RH03 3g / L and glacial acetic acid 1g / L.

[0012] Further, the reduced dye solution includes the following components in concentration: Dye 20g / L and dispersant MF 2g / L.

[0013] Furthermore, in step (2), the hot air drying is performed by passing the semi-finished product after impregnation and the semi-finished product after the first dyeing through air chambers at 90° C., 140° C. and 170° C. in sequence.

[0014] Furthermore, in step (3), the tentering temperature during tentering baking is 170-180°C, and the vehicle speed is 70-80 m / min; the pressure during pre-shrinking finishing is 15 kg, and the vehicle speed is 30-35 m / min.

[0015] The beneficial effects of the present invention are: The pre-treatment of the present invention adopts short steaming and low temperature scouring, the dyeing adopts the acid + reduction / activity two-bath process, and the post-finishing adopts high temperature stretching and pre-shrinking using high pressure and low speed and other means; the cotton nylon stretch fabric produced by this technology has a uniform and full surface, a small and stable shrinkage rate, and ultimately improves the quality and wearability of the cotton nylon stretch fabric. DETAILED DESCRIPTION

[0016] The specific implementation modes of the present invention are described in detail below with reference to the embodiments.

[0017] Example 1 A high wear-resistant cotton nylon stretch fabric pad dyeing process comprises the following steps: (1) Pretreatment: The incoming blanks are turned over and seamed in turn, then dipped in the scouring and bleaching liquid at a speed of 80 m / min, with a liquid rate of 85%; then piled in a steamer at 90°C for 60 min; then washed with hot water at 85°C; then dried at 60°C; then shaped at a speed of 90 m / min, a temperature of 190°C and an overfeed speed difference of 11 m / min; then singed with two forward burners and two reverse burners; then the burned The woolen fabric is dipped into a caustic soda solution with a concentration of 190g / L, ventilated for 60s, and then steamed to remove the alkali by five flushing and five washing at 80℃ to complete the mercerization of the fabric; then washed with cold water, dried at 60℃, and dropped to obtain a semi-finished product; the scouring and bleaching working solution used includes the following concentrations of components: caustic soda 7g / L, hydrogen peroxide 8g / L, refining agent (sodium dodecylbenzene sulfonate) 4g / L, chelating agent (ethylenediaminetetraacetic acid) 2g / L and water glass 10g / L; (2) Dyeing: The semi-finished product is immersed in an acid dye solution at room temperature with a liquid rate of 45%; the acid dye solution includes the following components in the following concentrations: Acid Lake Blue A 3.6g / L, Acid Yellow G 2.6g / L, Acid Red B 0.4g / L, Acetic Acid 1g / L and Acid Dyeing Agent ZJ-RH08 0.4g / L; Then the semi-finished product after padding is passed through the wind chambers at 90℃, 140℃ and 170℃ for hot air drying, and then baked at 180℃ for 90s, and then cooled by cold water rollers; then it is padded with the color fixing solution, which includes the following concentrations of components: Acidic fixing agent ZJ-RH03 3g / L and glacial acetic acid 1g / L; Then, steam fix the color at 100℃; then wash with cold water, wash with hot water (hot water temperature is 80℃), wash with water, dry (drying temperature is 60℃) and drop cloth treatment in sequence to obtain the first dyed semi-finished product; then roll with reduced dye solution, and then pass the rolled first dyed semi-finished product through wind chambers at 90℃, 140℃ and 170℃ in sequence for hot air drying, and then cool with cold water rollers; then roll with reduced solution, then steam develop the color at 100℃, then wash with water and dry to obtain the dyed semi-finished product; the reduced dye solution used includes the following components in concentration: Reduced Olive T 18.4 g / L, Reduced Brown BR 0.9 g / L, Reduced Yellow G 0.7 g / L and Dispersant MF 2 g / L; The reducing solution used includes the following components in concentration: 30 g / L caustic soda and 35 g / L hydrosulfite; (3) Post-finishing: The dyed semi-finished product is dipped in mosquito-proof finishing liquid, and then sequentially subjected to photoelectric weft straightening, tentering baking (tentering temperature is 180°C, machine speed is 80m / min), cold water roller cooling, water mist moistening, pre-shrinking finishing (pressure is 15kg, machine speed is 30m / min), drying, cold water roller cooling and cloth dropping treatment to obtain the final fabric; the mosquito-proof finishing liquid used includes mosquito-proof agent SPA-01 with a concentration of 120g / L and polyacrylate with a concentration of 50g / L.

[0018] Example 2 A high wear-resistant cotton nylon stretch fabric pad dyeing process comprises the following steps: (1) Pretreatment: The incoming blanks are turned over and seamed in turn, then dipped in the scouring and bleaching liquid at a speed of 80 m / min, with a liquid rate of 85%; then piled in a steamer at 85°C for 50 min; then washed with hot water at 85°C; then dried at 60°C; then shaped at a speed of 90 m / min, a temperature of 190°C and an overfeed speed difference of 11 m / min; then singed with two forward burners and two reverse burners; then the burned The woolen fabric is dipped into a caustic soda solution with a concentration of 190g / L, ventilated for 60s, and then steamed to remove the alkali by five flushing and five washing at 80℃ to complete the mercerization of the fabric; then washed with cold water, dried at 60℃, and dropped to obtain a semi-finished product; the scouring and bleaching working solution used includes the following concentrations of components: caustic soda 7g / L, hydrogen peroxide 8g / L, refining agent (sodium dodecylbenzene sulfonate) 4g / L, chelating agent (ethylenediaminetetraacetic acid) 2g / L and water glass 10g / L; (2) Dyeing: The semi-finished product is immersed in an acid dye solution at room temperature with a liquid rate of 45%; the acid dye solution includes the following components in the following concentrations: Acid Lake Blue A 3.6g / L, Acid Yellow G 2.6g / L, Acid Red B 0.4g / L, Acetic Acid 1g / L and Acid Dyeing Agent ZJ-RH08 0.4g / L; Then the semi-finished product after padding is passed through the wind chambers at 90℃, 140℃ and 170℃ for hot air drying, and then baked at 180℃ for 90s, and then cooled by cold water rollers; then it is padded with the color fixing solution, which includes the following concentrations of components: Acidic fixing agent ZJ-RH03 3g / L and glacial acetic acid 1g / L; Then, steam fix the color at 100℃; then wash with cold water, wash with hot water (hot water temperature is 80℃), wash with water, dry (drying temperature is 60℃) and drop cloth treatment in sequence to obtain the first dyed semi-finished product; then roll with reduced dye solution, and then pass the rolled first dyed semi-finished product through wind chambers at 90℃, 140℃ and 170℃ in sequence for hot air drying, and then cool with cold water rollers; then roll with reduced solution, then steam develop the color at 100℃, then wash with water and dry to obtain the dyed semi-finished product; the reduced dye solution used includes the following components in concentration: Reduced Olive T 18.4 g / L, Reduced Brown BR 0.9 g / L, Reduced Yellow G 0.7 g / L and Dispersant MF 2 g / L; The reducing solution used includes the following components in concentration: 30 g / L caustic soda and 35 g / L hydrosulfite; (3) Post-finishing: The dyed semi-finished product is dipped in mosquito-proof finishing liquid, and then sequentially subjected to photoelectric weft straightening, tentering baking (tentering temperature is 180°C, machine speed is 80m / min), cold water roller cooling, water mist moistening, pre-shrinking finishing (pressure is 15kg, machine speed is 30m / min), drying, cold water roller cooling and cloth dropping treatment to obtain the final fabric; the mosquito-proof finishing liquid used includes mosquito-proof agent SPA-01 with a concentration of 120g / L and polyacrylate with a concentration of 50g / L.

[0019] Example 3 A high wear-resistant cotton nylon stretch fabric pad dyeing process comprises the following steps: (1) Pretreatment: The incoming blanks are turned over and seamed in turn, then dipped in the scouring and bleaching liquid at a speed of 80 m / min, with a liquid rate of 85%; then piled in a steamer at 85°C for 50 min; then washed with hot water at 85°C; then dried at 60°C; then shaped at a speed of 90 m / min, a temperature of 190°C and an overfeed speed difference of 11 m / min; then singed with two forward burners and two reverse burners; then the burned The woolen fabric is dipped into a caustic soda solution with a concentration of 190g / L, ventilated for 60s, and then steamed to remove the alkali by five flushing and five washing at 80℃ to complete the mercerization of the fabric; then washed with cold water, dried at 60℃, and dropped to obtain a semi-finished product; the scouring and bleaching working solution used includes the following concentrations of components: caustic soda 7g / L, hydrogen peroxide 8g / L, refining agent (sodium dodecylbenzene sulfonate) 4g / L, chelating agent (ethylenediaminetetraacetic acid) 2g / L and water glass 10g / L; (2) Dyeing: The semi-finished product is immersed in an acid dye solution at room temperature with a liquid rate of 45%; the acid dye solution includes the following components in the following concentrations: Acid Lake Blue A 3.6g / L, Acid Yellow G 2.6g / L, Acid Red B 0.4g / L, Acetic Acid 1g / L and Acid Dyeing Agent ZJ-RH08 0.4g / L; Then the semi-finished product after padding is passed through the wind chambers at 90℃, 140℃ and 170℃ for hot air drying, and then baked at 180℃ for 90s, and then cooled by cold water rollers; then it is padded with the color fixing solution, which includes the following concentrations of components: Acidic fixing agent ZJ-RH03 3g / L and glacial acetic acid 1g / L; Then, steam fix the color at 100℃; then wash with cold water, wash with hot water (hot water temperature is 80℃), wash with water, dry (drying temperature is 60℃) and drop cloth treatment in sequence to obtain the first dyed semi-finished product; then roll with reduced dye solution, and then pass the rolled first dyed semi-finished product through wind chambers at 90℃, 140℃ and 170℃ in sequence for hot air drying, and then cool with cold water rollers; then roll with reduced solution, then steam develop the color at 100℃, then wash with water and dry to obtain the dyed semi-finished product; the reduced dye solution used includes the following components in concentration: Reduced Olive T 18.4 g / L, Reduced Brown BR 0.9 g / L, Reduced Yellow G 0.7 g / L and Dispersant MF 2 g / L; The reducing solution used includes the following components in concentration: 30 g / L caustic soda and 35 g / L hydrosulfite; (3) Finishing: The dyed semi-finished product is dipped in mosquito repellent finishing liquid, and then sequentially subjected to photoelectric weft straightening, tentering baking (tentering temperature is 170°C, machine speed is 70m / min), cold water roller cooling, water mist moistening, pre-shrinking finishing (pressure is 15kg, machine speed is 35m / min), drying, cold water roller cooling and cloth dropping treatment to obtain the final fabric; the mosquito repellent finishing liquid used includes mosquito repellent SPA-01 with a concentration of 120g / L and polyacrylate with a concentration of 50g / L.

[0020] Comparative Example 1 A high wear-resistant cotton nylon stretch fabric pad dyeing process comprises the following steps: (1) Pretreatment: The incoming blanks are turned over and seamed in turn, then dipped in the scouring and bleaching liquid at a speed of 80 m / min, with a liquid rate of 85%; then piled in a steamer at 90°C for 60 min; then washed with hot water at 85°C; then dried at 60°C; then shaped at a speed of 90 m / min, a temperature of 190°C and an overfeed speed difference of 11 m / min; then singed with two forward burners and two reverse burners; then the burned The woolen fabric is dipped into a caustic soda solution with a concentration of 190g / L, ventilated for 60s, and then steamed to remove the alkali by five flushing and five washing at 80℃ to complete the mercerization of the fabric; then washed with cold water, dried at 60℃, and dropped to obtain a semi-finished product; the scouring and bleaching working solution used includes the following concentrations of components: caustic soda 7g / L, hydrogen peroxide 8g / L, refining agent (sodium dodecylbenzene sulfonate) 4g / L, chelating agent (ethylenediaminetetraacetic acid) 2g / L and water glass 10g / L; (2) Dyeing: The semi-finished product is dipped into disperse / reduced mixed dye liquor at room temperature, with a liquid rate of 45%, and then the dipped semi-finished product is successively passed through wind chambers at 90°C, 140°C and 170°C for hot air drying, and then baked at 200°C for 90s, and then cooled by cold water rollers; then dipped into reduced liquid, and then steamed at 100°C for color development, and then washed with water and dried to obtain a dyed semi-finished product; the disperse / reduced mixed dye liquor used includes the following components in the following concentrations: Disperse blue 2BF 5g / L, disperse gold SE-4RL 3.1g / L, disperse red 3B 0.6g / L, vat olive T 26g / L, vat brown BR 1.5g / L, vat yellow G 0.8g / L, anti-migration agent CJ-626 5g / L; The reducing solution used includes the following components in concentration: 30 g / L caustic soda and 35 g / L hydrosulfite; (3) Post-finishing: The dyed semi-finished product is dipped in mosquito-proof finishing liquid, and then sequentially subjected to photoelectric weft straightening, tentering baking (tentering temperature is 180°C, machine speed is 80m / min), cold water roller cooling, water mist moistening, pre-shrinking finishing (pressure is 15kg, machine speed is 30m / min), drying, cold water roller cooling and cloth dropping treatment to obtain the final fabric; the mosquito-proof finishing liquid used includes mosquito-proof agent SPA-01 with a concentration of 120g / L and polyacrylate with a concentration of 50g / L.

[0021] Comparative Example 2 A high wear-resistant cotton nylon stretch fabric pad dyeing process comprises the following steps: (1) Pretreatment: The incoming blanks are turned over and seamed in turn, then dipped in the scouring and bleaching liquid at a speed of 80 m / min, with a liquid rate of 85%; then piled in a steamer at 90°C for 60 min; then washed with hot water at 85°C; then dried at 60°C; then shaped at a speed of 90 m / min, a temperature of 190°C and an overfeed speed difference of 11 m / min; then singed with two forward burners and two reverse burners; then the burned The woolen fabric is dipped into a caustic soda solution with a concentration of 190g / L, ventilated for 60s, and then steamed to remove the alkali by five flushing and five washing at 80℃ to complete the mercerization of the fabric; then washed with cold water, dried at 60℃, and dropped to obtain a semi-finished product; the scouring and bleaching working solution used includes the following concentrations of components: caustic soda 7g / L, hydrogen peroxide 8g / L, refining agent (sodium dodecylbenzene sulfonate) 4g / L, chelating agent (ethylenediaminetetraacetic acid) 2g / L and water glass 10g / L; (2) Dyeing: The semi-finished product is dipped into the reduced dye solution at room temperature with a liquid rate of 45%, and then the dipped semi-finished product is successively passed through wind chambers at 90°C, 140°C and 170°C for hot air drying, and then cooled by cold water rollers; then dipped into the reduced liquid, and then steamed at 100°C for color development, and then washed with water and dried to obtain the dyed semi-finished product; the reduced dye solution used includes the following components in the following concentrations: Reduced olive T 26g / L, reduced brown BR 1.5g / L, reduced yellow G 0.8g / L, anti-migration agent CJ-626 5g / L; The reducing solution used includes the following components in concentration: 30 g / L caustic soda and 35 g / L hydrosulfite; (3) Post-finishing: The dyed semi-finished product is dipped in mosquito-proof finishing liquid, and then sequentially subjected to photoelectric weft straightening, tentering baking (tentering temperature is 180°C, machine speed is 80m / min), cold water roller cooling, water mist moistening, pre-shrinking finishing (pressure is 15kg, machine speed is 30m / min), drying, cold water roller cooling and cloth dropping treatment to obtain the final fabric; the mosquito-proof finishing liquid used includes mosquito-proof agent SPA-01 with a concentration of 120g / L and polyacrylate with a concentration of 50g / L.

[0022] Comparative Example 3 A high wear-resistant cotton nylon stretch fabric pad dyeing process comprises the following steps: (1) Pretreatment: The incoming blanks are turned over and seamed in turn, then dipped in the scouring and bleaching liquid at a speed of 80 m / min, with a liquid rate of 85%; then piled in a steamer at 100°C for 70 min; then washed with hot water at 85°C; then dried at 60°C; then shaped at a speed of 90 m / min, a temperature of 190°C and an overfeed speed difference of 11 m / min; then singed with two forward burners and two reverse burners; then The singed fabric is dipped into a caustic soda solution with a concentration of 190g / L, ventilated for 60s, and then steamed to remove the alkali by five flushing and five washing at 80℃ to complete the mercerization of the fabric; then washed with cold water, dried at 60℃, and dropped to obtain a semi-finished product; the scouring and bleaching working solution used includes the following concentrations of components: caustic soda 7g / L, hydrogen peroxide 8g / L, refining agent (sodium dodecylbenzene sulfonate) 4g / L, chelating agent (ethylenediaminetetraacetic acid) 2g / L and water glass 10g / L; (2) Dyeing: The semi-finished product is immersed in an acid dye solution at room temperature with a liquid rate of 45%; the acid dye solution includes the following components in the following concentrations: Acid Lake Blue A 3.6g / L, Acid Yellow G 2.6g / L, Acid Red B 0.4g / L, Acetic Acid 1g / L and Acid Dyeing Agent ZJ-RH08 0.4g / L; Then the semi-finished product after padding is passed through the wind chambers at 90℃, 140℃ and 170℃ for hot air drying, and then baked at 180℃ for 90s, and then cooled by cold water rollers; then it is padded with the color fixing solution, which includes the following concentrations of components: Acidic fixing agent ZJ-RH03 3g / L and glacial acetic acid 1g / L; Then, steam fix the color at 100℃; then wash with cold water, wash with hot water (hot water temperature is 80℃), wash with water, dry (drying temperature is 60℃) and drop cloth treatment in sequence to obtain the first dyed semi-finished product; then roll with reduced dye solution, and then pass the rolled first dyed semi-finished product through wind chambers at 90℃, 140℃ and 170℃ in sequence for hot air drying, and then cool with cold water rollers; then roll with reduced solution, then steam develop the color at 100℃, then wash with water and dry to obtain the dyed semi-finished product; the reduced dye solution used includes the following components in concentration: Reduced Olive T 18.4 g / L, Reduced Brown BR 0.9 g / L, Reduced Yellow G 0.7 g / L and Dispersant MF 2 g / L; The reducing solution used includes the following components in concentration: 30 g / L caustic soda and 35 g / L hydrosulfite; (3) Post-finishing: The dyed semi-finished product is dipped in mosquito-proof finishing liquid, and then sequentially subjected to photoelectric weft straightening, tentering baking (tentering temperature is 180°C, machine speed is 80m / min), cold water roller cooling, water mist moistening, pre-shrinking finishing (pressure is 15kg, machine speed is 30m / min), drying, cold water roller cooling and cloth dropping treatment to obtain the final fabric; the mosquito-proof finishing liquid used includes mosquito-proof agent SPA-01 with a concentration of 120g / L and polyacrylate with a concentration of 50g / L.

[0023] Comparative Example 4 A high wear-resistant cotton nylon stretch fabric pad dyeing process comprises the following steps: (1) Pretreatment: The incoming blanks are turned over and seamed in turn, then dipped in the scouring and bleaching liquid at a speed of 80 m / min, with a liquid rate of 85%; then piled in a steamer at 90°C for 60 min; then washed with hot water at 85°C; then dried at 60°C; then shaped at a speed of 90 m / min, a temperature of 190°C and an overfeed speed difference of 11 m / min; then singed with two forward burners and two reverse burners; then the burned The woolen fabric is dipped into a caustic soda solution with a concentration of 190g / L, ventilated for 60s, and then steamed to remove the alkali by five flushing and five washing at 80℃ to complete the mercerization of the fabric; then washed with cold water, dried at 60℃, and dropped to obtain a semi-finished product; the scouring and bleaching working solution used includes the following concentrations of components: caustic soda 7g / L, hydrogen peroxide 8g / L, refining agent (sodium dodecylbenzene sulfonate) 4g / L, chelating agent (ethylenediaminetetraacetic acid) 2g / L and water glass 10g / L; (2) Dyeing: The semi-finished product is immersed in an acid dye solution at room temperature with a liquid rate of 45%; the acid dye solution includes the following components in the following concentrations: Acid Lake Blue A 3.6g / L, Acid Yellow G 2.6g / L, Acid Red B 0.4g / L, Acetic Acid 1g / L and Acid Dyeing Agent ZJ-RH08 0.4g / L; Then the semi-finished product after padding is passed through the wind chambers at 90℃, 140℃ and 170℃ for hot air drying, and then baked at 180℃ for 90s, and then cooled by cold water rollers; then it is padded with the color fixing solution, which includes the following concentrations of components: Acidic fixing agent ZJ-RH03 3g / L and glacial acetic acid 1g / L; Then, steam fix the color at 100℃; then wash with cold water, wash with hot water (hot water temperature is 80℃), wash with water, dry (drying temperature is 60℃) and drop cloth treatment in sequence to obtain the first dyed semi-finished product; then roll with reduced dye solution, and then pass the rolled first dyed semi-finished product through wind chambers at 90℃, 140℃ and 170℃ in sequence for hot air drying, and then cool with cold water rollers; then roll with reduced solution, then steam develop the color at 100℃, then wash with water and dry to obtain the dyed semi-finished product; the reduced dye solution used includes the following components in concentration: Reduced Olive T 18.4 g / L, Reduced Brown BR 0.9 g / L, Reduced Yellow G 0.7 g / L and Dispersant MF 2 g / L; The reducing solution used includes the following components in concentration: 30 g / L caustic soda and 35 g / L hydrosulfite; (3) Post-finishing: The dyed semi-finished product is dipped in mosquito-proof finishing liquid, and then sequentially subjected to photoelectric weft straightening, tentering machine baking (tentering temperature is 160°C, machine speed is 90m / min), cold water roller cooling, water mist moistening, pre-shrinking finishing (pressure is 10kg, machine speed is 40m / min), drying, cold water roller cooling and cloth dropping treatment to obtain the final fabric; the mosquito-proof finishing liquid used includes mosquito-proof agent SPA-01 with a concentration of 120g / L and polyacrylate with a concentration of 50g / L.

[0024] Results Analysis The color samples obtained in Examples 1 to 3 and Comparative Examples 1 to 4 were measured, and the standards used and the test comparison results are shown in Tables 1 to 3.

[0025] Table 1 Comparative test results of fabrics obtained in Example 1 and Comparative Examples 1-2

[0026] As can be seen from Table 1, the color sample obtained in Example 1 has a uniform surface and is fuller than the color samples obtained in Comparative Examples 1 and 2.

[0027] Table 2 Test standards and comparative test results of fabrics obtained in Example 1, Example 2 and Comparative Example 3

[0028] It can be seen from Table 2 that the physical indicators of the color sample obtained in Example 1 are better than those of the color samples obtained in Example 2 and Comparative Example 3.

[0029] Table 3 Test standards and comparative test results of fabrics obtained in Example 1, Example 3 and Comparative Example 4

[0030] As shown in Table 3, the shrinkage test results of the color samples obtained in Example 1 are better than those of the color samples obtained in Example 3 and Comparative Example 4.

[0031] Although the specific implementation of the present invention is described in detail in conjunction with the embodiments, it should not be understood as limiting the scope of protection of this patent. Within the scope described in the claims, various modifications and variations that can be made by those skilled in the art without creative work still fall within the scope of protection of this patent.

Claims

1. A high wear-resistant cotton nylon stretch fabric pad dyeing process, characterized in that: The following steps are involved: (1) Pretreatment: the incoming blank is subjected to cloth turning and seam treatment in sequence, and then immersed in a scouring and bleaching working solution at a speed of 70-90 m / min, with a liquid rate of 80-90%; then stacked in a steamer at 85-95°C for 55-65 min, and then washed with hot water at 80-90°C, and finally dried, shaped, singed, mercerized, washed, dried and dropped in sequence to obtain a semi-finished product; the scouring and bleaching working solution comprises the following components in concentrations: 7-8 g / L caustic soda, 7-8 g / L hydrogen peroxide, 3-5 g / L refining agent, 1-3 g / L chelating agent and 8-12 g / L water glass; (2) Dyeing: The semi-finished product is dipped into an acid dye solution at room temperature, with a liquid content of 40-45%, and then subjected to hot air drying, baking and cold water roller cooling treatment, and then dipped into a color fixing solution, and then steamed at 100-102°C for color fixing, and finally sequentially subjected to cold water washing, hot water washing, water washing, drying and cloth dropping treatment to obtain a first dyed semi-finished product; then dipped into a reduction dye solution, and then sequentially subjected to hot air drying and cold water roller cooling treatment, and then dipped into a reduction solution, and then steamed for color development, water washing and drying to obtain a dyed semi-finished product; (3) Finishing: The dyed semi-finished product is dipped into the finishing working liquid, and then subjected to photoelectric weft straightening, tentering machine baking, cold water roller cooling, water mist moistening, pre-shrinking finishing, drying, cold water roller cooling and cloth dropping treatment in sequence to obtain the final fabric.

2. The high wear-resistant cotton nylon stretch fabric pad dyeing process according to claim 1 is characterized in that: The scouring and bleaching working solution comprises components with the following concentrations: 7 g / L caustic soda, 8 g / L hydrogen peroxide, 4 g / L refining agent, 2 g / L chelating agent and 10 g / L water glass.

3. The high wear-resistant cotton nylon stretch fabric pad dyeing process according to claim 1 or 2, characterized in that: The refining agent is sodium dodecylbenzene sulfonate, and the chelating agent is ethylenediaminetetraacetic acid or diethylenetriaminepentaacetic acid.

4. The high wear-resistant cotton nylon stretch fabric pad dyeing process according to claim 1 is characterized in that: In step (1), the shaping speed is 85-95 m / min, the shaping temperature is 180-200° C., and the overfeed speed difference is 11 m / min.

5. The high wear-resistant cotton nylon stretch fabric pad dyeing process according to claim 1, characterized in that: In step (1), the mercerizing process is to immerse the singed fabric in a caustic soda solution with a concentration of 180-200 g / L, ventilate for 60 seconds, and then steam-dry the fabric at 80° C. using a five-wash and five-flushing method to remove the alkali.

6. The high wear-resistant cotton nylon stretch fabric pad dyeing process according to claim 1, characterized in that: The acidic dye solution includes the following components in concentration: Dye 5~6g / L, acetic acid 1g / L and acid dyeing agent ZJ-RH08 0.4g / L; The temperature of baking after immersion in the acid dye solution in step (2) is 180°C.

7. The high wear-resistant cotton nylon stretch fabric pad dyeing process according to claim 6, characterized in that: The fixing solution comprises the following components: Acidic fixing agent ZJ-RH03 3g / L and glacial acetic acid 1g / L.

8. The high wear-resistant cotton nylon stretch fabric pad dyeing process according to claim 1, characterized in that: The reduced dye solution includes the following components in concentration: Dye 20g / L and dispersant MF 2g / L.

9. The high wear-resistant cotton nylon stretch fabric pad dyeing process according to claim 1, characterized in that: In step (2), the hot air drying is to pass the semi-finished product after impregnation and the semi-finished product after the first dyeing through air chambers at 90° C., 140° C. and 170° C. in sequence.

10. The high wear-resistant cotton nylon stretch fabric pad dyeing process according to claim 1, characterized in that: In step (3), the tentering temperature during tentering baking is 170-180° C., and the vehicle speed is 70-80 m / min; the pressure during pre-shrinking finishing is 15 kg, and the vehicle speed is 30-35 m / min.

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