Fabric processing method for improving uvioresistant and washable performance through dyeing process

Abstract

The invention relates to the technical field of fabric processing, in particular to a fabric processing method for improving ultraviolet resistance and washing fastness through a dyeing process. According to the fabric processing method for improving the uvioresistant and washable performance through the dyeing process, gray fabric is subjected to pretreatment, dyeing, color fixing, softening and preshrinking, and the uvioresistant fabric is obtained; in the dyeing process, an anti-ultraviolet finishing liquid is prepared from 0.1 g / L to 200 g / L of reactive dye, 60 g / L to 100 g / L of an anti-ultraviolet auxiliary CEL and the balance of water. According to the method, a dyeing process is adopted, so that the anti-ultraviolet and washable performance of the fabric is improved.

Description

Technical Field

[0001] The invention relates to the technical field of fabric processing, and in particular to a fabric processing method for improving UV resistance and washability through a dyeing process. Background Art

[0002] The temperature is hot in summer, and outdoor activities for a while will cause the human body to sweat a lot, which requires frequent washing of clothes, resulting in a significant decrease in anti-ultraviolet performance after washing.

[0003] Chinese patent application CN110344264A, published on January 28, 2022, discloses a method for dyeing super-hydrophobic anti-ultraviolet cotton fabric, which includes preparing a modified solution, modifying cotton fabric; adding dye and mordant to the modified solution, dyeing the modified cotton fabric to obtain dyed cotton fabric; padding the dyed cotton fabric alternately in the mordant and cross-linking agent for several times; soaking in a waterproof finishing agent, padding after cleaning; baking after drying to obtain super-hydrophobic anti-ultraviolet dyed cotton fabric; wherein, the prepared modified solution is prepared using a cationic modifier and NaOH; the mordant is lanthanum chloride, the dye is a natural plant dye, the cross-linking agent is phytic acid, and the waterproof finishing agent is YC560. However, the preparation and dyeing steps of the modified solution are relatively cumbersome, which is not conducive to industrial production. In addition, the cotton needs to be modified before subsequent dyeing and super-hydrophobic anti-UV finishing can be carried out. Moreover, the existing technology mostly uses cationic softeners during production, which makes it easy to produce precipitation during the stretching process, resulting in stains on the fabric surface. Summary of the invention

[0004] In view of the above deficiencies in the prior art, the purpose of the present invention is to provide a fabric processing method for improving the UV resistance and washability through a dyeing process, while ensuring the feel, UV resistance and texture of the fabric, shortening the process steps and greatly reducing energy consumption.

[0005] The present invention is achieved by adopting the following technical solutions: The fabric processing method for improving the anti-ultraviolet and washable properties through dyeing process comprises the steps of pre-treating the grey fabric, dyeing, softening and pre-shrinking the grey fabric to obtain the anti-ultraviolet fabric. The dyeing process includes dyeing and fixing steps; In the dyeing process, the anti-ultraviolet finishing liquid comprises: 0.1-200 g / L of reactive dye, 60-100 g / L of anti-ultraviolet auxiliary agent CEL, and the balance is water; The reactive dye is one of X type, K type, M type, KN type or KD type.

[0006] The pre-treatment process includes singeing, desizing, scouring, bleaching and mercerizing.

[0007] The dyeing process includes preparing finishing liquid, padding and color fixing of the treated fabric; the padding is one of one-dipping-one-padding or two-dipping-two-padding.

[0008] In the dyeing process, the anti-ultraviolet padder pressure is 1.0-3.8 Bar.

[0009] In the dyeing process, the anti-ultraviolet vehicle speed is 30-60m / min; the anti-ultraviolet rolling rate is 60%-85%.

[0010] In the dyeing process, the anti-ultraviolet far-infrared pre-drying temperature is 650-660°C, the anti-ultraviolet circulating air volume is 30%-60%, and the anti-ultraviolet drying room temperature is 90-100°C.

[0011] In the dyeing process, the anti-ultraviolet color fixing solution is composed of: caustic soda: 0-12g / L, sodium sulfate: 220g / L, soda ash: 30g / L, resist salt: 2g / L, penetrant WA-MZ: 0.5-2g / L, dispersant ZB: 0.5-2g / L.

[0012] In the dyeing process, the fixing speed is 50-60 m / min.

[0013] In the dyeing process, the pressure of the roller in the anti-ultraviolet fixing process is 0.2-0.38 Bar.

[0014] In the dyeing process, the temperature of the anti-ultraviolet color fixing steamer is 99-100.5°C.

[0015] In the dyeing process, the temperature of the UV-resistant color fixing drying cylinder is 102-125°C.

[0016] In the dyeing process, after the color is fixed, 8 to 12 washings at different temperatures are performed.

[0017] The pre-treatment process is as follows: Singeing process parameters: flame intensity: 10-20mBar, singeing method: through burning / normal burning, machine speed: 80-120m / min; Desizing process parameters: desizing enzyme OPT-280: 2-4g / L, penetrant MRZ: 4-6g / L, refining enzyme 601-L: 1-2g / L, extractant RED: EX: 3-5g / L, steamer temperature: 100℃, stacking time: 15min, vehicle speed: 60-70m / min; Scouring process parameters: caustic soda: 20-50g / L, refining agent CRC: 5-7g / L, penetrant MRZ: 6-8g / L, chelating agent SQ-A: 4-5g / L, dewaxing agent SA-U: 4-5g / L, steamer temperature: 100℃, piling time: 10-25min, vehicle speed: 60-70m / min; Bleaching process parameters: NaOH: 1-2g / L, H2O2: 10-15g / L, chelating agent: (SQ-A: SQ-N): 10-12g / L, penetrant: (WA-X: R-110): 6-8g / L, stabilizer: OUR-266: 7-8g / L, steamer temperature: 100℃, stacking time: 15-25min, vehicle speed: 70-80m / min.

[0018] Mercerizing process parameters: caustic soda concentration: 160-210g / L, caustic soda temperature: 50-55℃, dilute caustic soda concentration: 40-50g / L, dilute caustic soda temperature 80-85℃, acid neutralization pH: 5, vehicle speed: 70-80m / min; The anti-ultraviolet finishing liquid of the dyeing process includes: 0.1-200g / L of reactive dye, 60-100g / L of anti-ultraviolet auxiliary agent CEL, and the balance is water.

[0019] The dyeing process has an anti-UV padding pressure of 1.0-3.8 Bar, a speed of 30-60 m / min, and a padding rate of 60%-85%.

[0020] In the anti-ultraviolet process of dyeing technology, the far-infrared pre-drying temperature is 650-660℃, the time is 2-4s, the drying room temperature is 90-100℃, the time is 2-4min, and the circulating air volume is 30%-60%.

[0021] In the anti-ultraviolet fixing process of dyeing technology, the steamer temperature is: 99-100.5℃, the vehicle speed is: 50-60m / min, the time is: 60-65S, the drying room temperature is 102-125℃, and the time is 25-30s.

[0022] The fixing solution in the anti-ultraviolet process of dyeing process: caustic soda: 0~12g / L, sodium sulfate: 220g / L, soda ash: 30g / L, resist salt: 2g / L, penetrant WA-MZ: 0~2g / L, dispersant ZB: 2g / L.

[0023] Softening: Softener: 15-30g / L, two dips and two rolls, roll rate: 65-75%, machine speed: 50-60m / min, drying room temperature: 130-140℃, air volume: 70-80%.

[0024] Pre-shrinkage process parameters: machine speed: 30-50m / min, felt blanket temperature: 120-130℃, rubber blanket temperature: 80-100℃, pressing distance: 8-10mm; The anti-ultraviolet additive is a reactive ultraviolet absorber additive based on N,N-diphenyloxalamide, and is a CEL anti-ultraviolet additive.

[0025] Specifically, the dyeing process for improving the UV resistance of fabrics comprises the following steps: (1) Fabric pretreatment: The grey fabric is subjected to singeing, desizing, scouring, bleaching and mercerizing in sequence; (2) Anti-ultraviolet dyeing process: the finishing liquid is adjusted to the following concentrations: active dye 0.1-200g / L, anti-ultraviolet auxiliary CEL: 60-100g / L, and the balance is water; the treated fabric is subjected to one dip and one roll or two dips and two rolls, the speed is 30-60m / min, the rolling pressure is 1.0-3.8Bar, the roll rate is 60%-85%, the far-infrared pre-drying temperature is 650-660℃, the time is 2-4s, the drying room temperature is 90-100℃, the circulating air volume is 30%-60%, and the time is 2-4min; (3) Color fixation: caustic soda: 0~12g / L, sodium sulfate: 220g / L, soda ash: 30g / L, anti-dyeing salt: 2g / L, penetrant WA-MZ: 0~2g / L, dispersant ZB: 2g / L; vehicle speed 50-60m / min, steamer temperature: 99-100.5℃, time: 60-65S, drying room temperature 110-120℃, time 25-30s.

[0026] The dyeing process of the present invention improves the processing method of the fabric with anti-ultraviolet and wash-resistant performance, and the dye solution and the anti-ultraviolet auxiliary agent are bathed in one bath, thereby improving the anti-ultraviolet and wash-resistant performance of the fabric, and avoiding the problem of contamination that may be caused in the softening process because the anti-ultraviolet auxiliary agent is an anion.

[0027] Compared with the prior art, the present invention has the following beneficial effects: (1) The dyeing process for processing UV-resistant fabrics of the present invention improves the UV-resistant and washable properties of the fabrics by using the dyeing process; (2) The dyeing process for processing UV-resistant fabrics of the present invention avoids the problem of incoexistence of anions and cations in the auxiliary agents without increasing the process. DETAILED DESCRIPTION

[0028] In order to make the purpose and technical solution of the present invention more clear, the present invention is further described in detail.

[0029] The finishing liquids used in the following examples and comparative examples are all commercially available products: Anti-UV additive: CEL, a reactive UV absorber based on N,N-diphenyloxalamide, produced by Archroma Chemicals (China) Co., Ltd. Penetrant WA-MZ: Zibo Lurui Fine Chemical Co., Ltd.; Dispersant ZB: Italy Boset Group; Reactive dye type X: Shanghai Xinyong Textile Dyeing Co., Ltd.; Reactive dye K type: Archroma Chemicals (China) Co., Ltd. Reactive dyes type M: Shanghai Anoky Group Co., Ltd.; Anti-dyeing salt: Zhejiang Xinhaitian Biotechnology Co., Ltd.

[0030] Example 1 The fabric used in this embodiment is: 100% cotton, CM120 / 2×CM120 / 2×200×100×61 / 62 (cotton 120 twill×cotton 120 twill×warp density 200×weft density 100×width 61 / 62 inches), weave 1 / 1; The method for processing fabrics to improve UV resistance and washability through dyeing process comprises the following steps: (1) Fabric pretreatment: The grey cloth is subjected to singeing, desizing, scouring, bleaching and mercerizing in sequence.

[0031] Singeing process parameters: flame intensity is 10mBar, singeing method is through burning, and the speed is 80m / min; Desizing process parameters: steamer temperature is 100℃, piling time is 15min, vehicle speed is 60m / min, in the working solution, the concentration of desizing enzyme OPT-280 is 2g / L, the concentration of penetrant MRZ is 4g / L, the concentration of refining enzyme 601-L is 1g / L, and the concentration of extractant RED:EX is 3g / L; scouring process parameters: steamer temperature is 100℃, piling time is 10min, vehicle speed is 60m / min, in the working solution, the concentration of caustic soda is 20g / L, the concentration of refining agent CRC is 5g / L, the concentration of penetrant MRZ is 6g / L, the concentration of chelating agent SQ-A is 4g / L, and the concentration of dewaxing agent SA-U is 4g / L; Bleaching process parameters: steamer temperature is 100℃, piling time is 15min, vehicle speed is 70m / min, in the working solution, NaOH concentration is 1g / L, H2O2 concentration is 10g / L, chelating agent SQ-A: SQ-N concentration is 10g / L, penetrant WA-X: R-110 concentration is 6g / L, stabilizer OUR-266 concentration is 7g / L; Mercerizing process parameters: caustic soda concentration is 160g / L, caustic soda temperature is 50℃, dilute alkali concentration is 40g / L, dilute alkali temperature is 80℃, acid neutralization pH is 5, and vehicle speed is 70m / min.

[0032] (2) Dyeing process for anti-ultraviolet: the finishing liquid is adjusted to the following concentrations: reactive dye type X: 4g / L, anti-ultraviolet auxiliary agent CEL: 80g / L, and the balance is water; the treated fabric is dipped and rolled, the rolling pressure is 1.0Bar, the speed is 45m / min, the rolling rate is 85%, the far-infrared pre-drying temperature is 660℃, the time is 2.5s, the drying room temperature is 100℃, the circulating air volume is 60%, and the time is 2.5min.

[0033] (3) Color fixation: padding pressure 0.24 Bar, sodium sulfate: 220 g / L, soda ash: 30 g / L, resist salt: 2 g / L, penetrant WA-MZ: 0.5 g / L, dispersant ZB: 2 g / L; vehicle speed 50 m / min, steamer temperature: 100.5 °C, time 65 s, drying drum temperature 125 °C, time 30 s.

[0034] (4) Softening: Softener: 15g / L, two dips and two rolls, roll rate: 75%, machine speed: 50m / min, drying room temperature: 130℃, air volume 70%.

[0035] (5) Preshrinkage: speed: 50 m / min; pressing distance: 8 mm, felt blanket temperature: 120 °C, rubber blanket temperature: 90 °C, tension: 3 kg, adjusting frame tension: 40 N.

[0036] Example 2 The fabric used in this embodiment is 100% cotton, CPT90×CPT90×210×120×57 / 58 (cotton 90 count×cotton 90 count×warp density 210×weft density 120×width 57 / 58 inches), weave 1 / 1; The fabric processing method for improving the UV resistance and washability through dyeing process includes the following steps: (1) Fabric pretreatment: The grey cloth is subjected to singeing, desizing, scouring, bleaching and mercerizing in sequence.

[0037] Singeing process parameters: flame intensity is 20mBar, singeing method is normal burning, and the speed is 120m / min; Desizing process parameters: steamer temperature is 100℃, piling time is 15min, vehicle speed is 70m / min, working fluid is The concentration of desizing enzyme OPT-280 is 4 g / L, the concentration of penetrant MRZ is 6 g / L, the concentration of refining enzyme 601-L is 2 g / L, and the concentration of extractant RED:EX is 5 g / L; Scouring process parameters: steamer temperature is 100℃, piling time is 25min, vehicle speed is 70m / min, caustic soda concentration is 50g / L, refining agent CRC concentration is 7g / L, penetrant MRZ concentration is 8g / L, chelating agent SQ-A concentration is 5g / L, dewaxing agent SA-U concentration is 5g / L in the working solution; Bleaching process parameters: steamer temperature is 100℃, piling time is 25min, vehicle speed is 80m / min, in the working solution, NaOH concentration is 2g / L, H2O2 concentration is 12g / L, chelating agent SQ-A: SQ-N concentration is 12g / L, penetrant WA-X: R-110 concentration is 8g / L, stabilizer OUR-266 concentration is 8g / L; Mercerizing process parameters: caustic soda concentration is 210g / L, caustic soda temperature is 55℃, dilute alkali concentration is 50g / L, dilute alkali temperature is 85℃, acid neutralization pH is 5, and vehicle speed is 80m / min.

[0038] (2) Dyeing process for anti-ultraviolet: the finishing liquid is adjusted to the following concentrations: reactive dye type K: 20g / L, anti-ultraviolet auxiliary agent CEL: 100g / L, and the balance is water; the treated fabric is immersed and rolled, the rolling pressure is 3.8Bar, the speed is 30m / min, the rolling rate is 60%, the far-infrared pre-drying temperature is 650℃, the time is 4s, the drying room temperature is 90℃, the circulating air volume is 30%, and the time is 4min.

[0039] (3) Color fixation: padding pressure 0.2 Bar, caustic soda: 12 g / L, sodium sulfate: 220 g / L, soda ash: 30 g / L, resist salt: 2 g / L, penetrant WA-MZ: 2 g / L, dispersant ZB: 0.5 g / L; vehicle speed 60 m / min, steamer temperature: 99 °C, time 60 s, drying drum temperature 102 °C, time 25 s.

[0040] (4) Softening: Softener: 20g / L, two dips and two rolls, roll rate: 70%, machine speed: 55m / min, drying room temperature: 135℃, air volume 75%.

[0041] (5) Preshrinkage: speed: 60 m / min; pressing distance: 6 mm, felt blanket temperature: 130 °C, rubber blanket temperature: 80 °C, tension: 3 kg, adjusting frame tension: 40 N.

[0042] Example 3 The fabric used in this embodiment is: 44% cotton 51% polyester 5% spandex, CVC45×P50D (SPANDEX40D)×160×80×52 / 53 (polyester cotton 45 English count×polyester 75 denier plus spandex 40 denier×warp density 160×weft density 80×width 52 / 53 inches), weave 1 / 1; The fabric processing method for improving the UV resistance and washability through dyeing process includes the following steps: (1) Fabric pretreatment: The grey cloth is subjected to singeing, desizing, scouring, bleaching and mercerizing in sequence.

[0043] Singeing process parameters: flame intensity is 18mBar, singeing method is normal burning, and the speed is 100m / min; Desizing process parameters: steamer temperature is 100℃, piling time is 15min, vehicle speed is 65m / min, in the working solution, the concentration of desizing enzyme OPT-280 is 3g / L, the concentration of penetrant MRZ is 5g / L, the concentration of refining enzyme 601-L is 1.5g / L, and the concentration of extractant RED:EX is 4g / L; Scouring process parameters: steamer temperature is 100℃, piling time is 20min, vehicle speed is 65m / min, in the working solution, caustic soda concentration is 35g / L, refining agent CRC concentration is 6g / L, penetrant MRZ concentration is 7g / L, chelating agent SQ-A concentration is 4.5g / L, dewaxing agent SA-U concentration is 4.5g / L; Bleaching process parameters: steamer temperature is 100℃, piling time is 20min, vehicle speed is 75m / min, in the working solution, NaOH concentration is 1.5g / L, H2O2 concentration is 12g / L, chelating agent SQ-A: SQ-N concentration is 11g / L, penetrant WA-X: R-110 concentration is 7g / L, stabilizer OUR-266 concentration is 7.5g / L; Mercerizing process parameters: caustic soda concentration is 166g / L, caustic soda temperature is 52℃, dilute alkali concentration is 45g / L, dilute alkali temperature is 82℃, acid neutralization pH is 5, and vehicle speed is 75m / min.

[0044] (2) Dyeing process anti-ultraviolet: the finishing liquid is adjusted to the following concentrations: reactive dye M type: 60g / L, anti-ultraviolet auxiliary agent CEL: 60g / L, and the balance is water; the treated fabric is subjected to double dipping and double rolling, the rolling pressure is 2.0Bar, the speed is 60m / min, the rolling rate is 75%, the far-infrared pre-drying temperature is 650℃, the time is 2s, the drying room temperature is 100℃, the circulating air volume is 40%, and the time is 2min. (3) Color fixation: padding pressure 0.34 Bar, caustic soda: 12 g / sodium sulfate: 220 g / L, soda ash: 30 g / L, resist salt: 2 g / L, dispersant ZB: 1.5 g / L; penetrant WA-MZ: 1 g / L, vehicle speed 60 m / min, steamer temperature: 100.5 °C, time 60 s, drying drum temperature 110 °C, time 25 s.

[0045] (4) Softening: Softener: 30g / L, two dips and two rolls, roll rate: 75%, machine speed: 60m / min, drying room temperature: 140℃, air volume 80%.

[0046] (5) Preshrinkage: speed: 60 m / min; pressing distance: 6 mm, felt blanket temperature: 130 °C, rubber blanket temperature: 80 °C, tension: 3 kg, adjusting frame tension: 40 N.

[0047] Comparative Example 1 The fabric used in this comparative example is: 100% cotton, CM120 / 2×CM120 / 2×200×100×61 / 62 (cotton 120 twill×cotton 120 twill×warp density 200×weft density 100×width 61 / 62 inches), weave 1 / 1; The fabric processing method for improving the UV resistance and washability through dyeing process includes the following steps: (1) Fabric pretreatment: The grey cloth is subjected to singeing, desizing, scouring, bleaching and mercerizing in sequence.

[0048] Singeing process parameters: flame intensity is 10mBar, singeing method is through burning, and the speed is 80m / min; Desizing process parameters: steamer temperature is 100℃, piling time is 15min, vehicle speed is 60m / min, in the working solution, the concentration of desizing enzyme OPT-280 is 2g / L, the concentration of penetrant MRZ is 4g / L, the concentration of refining enzyme 601-L is 1g / L, and the concentration of extractant RED:EX is 3g / L; scouring process parameters: steamer temperature is 100℃, piling time is 10min, vehicle speed is 60m / min, in the working solution, the concentration of caustic soda is 20g / L, the concentration of refining agent CRC is 5g / L, the concentration of penetrant MRZ is 6g / L, the concentration of chelating agent SQ-A is 4g / L, and the concentration of dewaxing agent SA-U is 4g / L; Bleaching process parameters: steamer temperature is 100℃, piling time is 15min, vehicle speed is 70m / min, in the working solution, NaOH concentration is 1g / L, H2O2 concentration is 10g / L, chelating agent SQ-A: SQ-N concentration is 10g / L, penetrant WA-X: R-110 concentration is 6g / L, stabilizer OUR-266 concentration is 7g / L; Mercerizing process parameters: caustic soda concentration is 160g / L, caustic soda temperature is 50℃, dilute alkali concentration is 40g / L, dilute alkali temperature is 80℃, acid neutralization pH is 5, and vehicle speed is 70m / min.

[0049] (2) Dyeing process for anti-ultraviolet: the finishing liquid is adjusted to the following concentrations: reactive dye type X: 4g / L, the balance is water; the treated fabric is dipped and rolled, the rolling pressure is 1.0Bar, the speed is 45m / min, the rolling rate is 85%, the far-infrared pre-drying temperature is 660℃, the time is 2.5s, the drying room temperature is 100℃, the circulating air volume is 60%, the time is 2.5min, (3) Color fixation: padding pressure 0.24 Bar, sodium sulfate: 220 g / L, soda ash: 30 g / L, resist salt: 2 g / L, penetrant WA-MZ: 0.5 g / L, dispersant ZB: 2 g / L; vehicle speed 50 m / min, steamer temperature: 100.5 °C, time 65 s, drying drum temperature 125 °C, time 30 s.

[0050] (4) Stretching: Anti-ultraviolet additive CEL: 80g / L, two dips and two rolls, roll rate: 85%, machine speed: 50m / min, drying room temperature: 130℃, air volume 70%.

[0051] (5) Softening: Softener: 15g / L, two dips and two rolls, roll rate: 75%, machine speed: 50m / min, drying room temperature: 130℃, air volume 70%.

[0052] (6) Preshrinkage: speed: 50 m / min; pressing distance: 8 mm, felt blanket temperature: 120 °C, rubber blanket temperature: 90 °C, tension: 3 kg, adjusting frame tension: 40 N.

[0053] Comparative Example 2 The fabric used in this comparative example is 100% cotton, CPT90×CPT90×210×120×57 / 58 (cotton 90 count×cotton 90 count×warp density 210×weft density 120×width 57 / 58 inches), weave 1 / 1; The fabric processing method for improving the UV resistance and washability through dyeing process includes the following steps: (1) Fabric pretreatment: The grey cloth is subjected to singeing, desizing, scouring, bleaching and mercerizing in sequence.

[0054] Singeing process parameters: flame intensity is 20mBar, singeing method is normal burning, and the speed is 120m / min; Desizing process parameters: steamer temperature is 100℃, piling time is 15min, vehicle speed is 70m / min, working fluid is The concentration of desizing enzyme OPT-280 is 4 g / L, the concentration of penetrant MRZ is 6 g / L, the concentration of refining enzyme 601-L is 2 g / L, and the concentration of extractant RED:EX is 5 g / L; Scouring process parameters: steamer temperature is 100℃, piling time is 25min, vehicle speed is 70m / min, caustic soda concentration is 50g / L, refining agent CRC concentration is 7g / L, penetrant MRZ concentration is 8g / L, chelating agent SQ-A concentration is 5g / L, dewaxing agent SA-U concentration is 5g / L in the working solution; Bleaching process parameters: steamer temperature is 100℃, piling time is 25min, vehicle speed is 80m / min, in the working solution, NaOH concentration is 2g / L, H2O2 concentration is 12g / L, chelating agent SQ-A: SQ-N concentration is 12g / L, penetrant WA-X: R-110 concentration is 8g / L, stabilizer OUR-266 concentration is 8g / L; Mercerizing process parameters: caustic soda concentration is 210g / L, caustic soda temperature is 55℃, dilute alkali concentration is 50g / L, dilute alkali temperature is 85℃, acid neutralization pH is 5, and vehicle speed is 80m / min.

[0055] (2) Dyeing process for UV resistance: The finishing liquid is adjusted to the following concentrations: reactive dye type K: 20 g / L, the balance is water; the treated fabric is dipped and rolled, the rolling pressure is 3.8 Bar, the speed is 30 m / min, the rolling rate is 60%, the far-infrared pre-drying temperature is 650 ° C, the time is 4 s, the drying room temperature is 90 ° C, the circulating air volume is 30%, and the time is 4 min.

[0056] (3) Color fixation: padding pressure 0.2 Bar, caustic soda: 12 g / L, sodium sulfate: 220 g / L, soda ash: 30 g / L, resist salt: 2 g / L, penetrant WA-MZ: 2 g / L, dispersant ZB: 0.5 g / L; vehicle speed 60 m / min, steamer temperature: 99 °C, time 60 s, drying drum temperature 102 °C, time 25 s.

[0057] (4) Stretching: Anti-ultraviolet additive CEL: 100g / L, two dips and two rolls, roll rate: 75%, speed: 40m / min, drying room temperature: 120℃, air volume 60%.

[0058] (5) Softening: Softener: 20g / L, two dips and two rolls, roll rate: 70%, machine speed: 55m / min, drying room temperature: 135℃, air volume 75%.

[0059] (6) Preshrinkage: speed: 60 m / min; pressing distance: 6 mm, felt blanket temperature: 130 °C, rubber blanket temperature: 80 °C, tension: 3 kg, adjusting frame tension: 40 N.

[0060] Comparative Example 3 The fabric used in this comparative example is: 44% cotton, 51% polyester, 5% spandex, CVC45×P50D (SPANDEX40D)×160×80×52 / 53 (polyester-cotton 45 English count×polyester 75 denier plus spandex 40 denier×warp density 160×weft density 80×width 52 / 53 inches), weave 1 / 1; The fabric processing method for improving the UV resistance and washability through dyeing process includes the following steps: (1) Fabric pretreatment: The grey cloth is subjected to singeing, desizing, scouring, bleaching and mercerizing in sequence.

[0061] Singeing process parameters: flame intensity is 18mBar, singeing method is normal burning, and the speed is 100m / min; Desizing process parameters: steamer temperature is 100℃, piling time is 15min, vehicle speed is 65m / min, in the working solution, the concentration of desizing enzyme OPT-280 is 3g / L, the concentration of penetrant MRZ is 5g / L, the concentration of refining enzyme 601-L is 1.5g / L, and the concentration of extractant RED:EX is 4g / L; Scouring process parameters: steamer temperature is 100℃, piling time is 20min, vehicle speed is 65m / min, in the working solution, caustic soda concentration is 35g / L, refining agent CRC concentration is 6g / L, penetrant MRZ concentration is 7g / L, chelating agent SQ-A concentration is 4.5g / L, dewaxing agent SA-U concentration is 4.5g / L; Bleaching process parameters: steamer temperature is 100℃, piling time is 20min, vehicle speed is 75m / min, in the working solution, NaOH concentration is 1.5g / L, H2O2 concentration is 12g / L, chelating agent SQ-A: SQ-N concentration is 11g / L, penetrant WA-X: R-110 concentration is 7g / L, stabilizer OUR-266 concentration is 7.5g / L; Mercerizing process parameters: caustic soda concentration is 166g / L, caustic soda temperature is 52℃, dilute alkali concentration is 45g / L, dilute alkali temperature is 82℃, acid neutralization pH is 5, and vehicle speed is 75m / min.

[0062] (2) Dyeing process for anti-ultraviolet: the finishing liquid is adjusted to the following concentrations: reactive dye type M: 60g / L, anti-ultraviolet auxiliary agent CEL: 60g / L, and the balance is water; the treated fabric is subjected to double immersion and double rolling, the rolling pressure is 2.08Bar, the speed is 60m / min, the rolling rate is 75%, the far-infrared pre-drying temperature is 650℃, the time is 2s, the drying room temperature is 100℃, the circulating air volume is 50%, and the time is 2min.

[0063] (3) Color fixation: padding pressure 0.34 Bar, caustic soda: 12 g / L, sodium sulfate: 220 g / L, soda ash: 30 g / L, resist salt: 2 g / L, dispersant ZB: 1.5 g / L, penetrant WA-MZ: 1 g / L, vehicle speed 60 m / min, steamer temperature: 100.5 °C, time 60 s, drying drum temperature 110 °C, time 25 s.

[0064] (4) Stretching: Anti-ultraviolet additive CEL: 60g / L, two dips and two rolls, roll rate: 75%, speed: 50m / min, drying room temperature: 130℃, air volume 70%.

[0065] (5) Softening: Softener: 30g / L, two dips and two rolls, roll rate: 75%, machine speed: 60m / min, drying room temperature: 140℃, air volume 80%.

[0066] (6) Preshrinkage: speed: 60 m / min; pressing distance: 6 mm, felt blanket temperature: 130 °C, rubber blanket temperature: 80 °C, tension: 3 kg, adjusting frame tension: 40 N.

[0067] The test data of Examples 1-3 and Comparative Examples 1-3 are shown in Table 1.

[0068] Table 1 Test data of Examples 1-3 and Comparative Examples 1-3

[0069] It can be seen from the above table that the processing method of the dyeing process of the anti-ultraviolet fabric of the present invention improves the anti-ultraviolet and wash-resistant performance of the fabric, and avoids the problem of contamination caused by the incoexistence of anions and cations in post-treatment, thereby solving the production problem without increasing the process.

Claims

1. A fabric processing method for improving UV resistance and washability through dyeing process, characterized in that: The grey fabric is pre-treated → dyed → softened → pre-shrunk to obtain UV-resistant fabric; The dyeing process includes dyeing and fixing steps; In the dyeing process, the anti-ultraviolet finishing liquid comprises: 0.1-200 g / L of reactive dye, 60-100 g / L of anti-ultraviolet auxiliary agent CEL, and the balance is water; The reactive dye is one of X type, K type, M type, KN type or KD type.

2. The fabric processing method for improving UV resistance and washability through dyeing process according to claim 1, characterized in that: The pre-treatment process includes singeing, desizing, scouring, bleaching and mercerizing.

3. The fabric processing method for improving UV resistance and washability through dyeing process according to claim 1, characterized in that: The dyeing process includes preparing finishing liquid, padding the fabric with the finishing liquid, and fixing the color; the padding is one of one dipping and one padding or two dipping and two padding.

4. The fabric processing method for improving UV resistance and washability through dyeing process according to claim 1, characterized in that: In the dyeing process, the anti-ultraviolet padder pressure is 1.0-3.8 Bar.

5. The fabric processing method for improving UV resistance and washability through dyeing process according to claim 1, characterized in that: In the dyeing process, the anti-ultraviolet vehicle speed is 30-60m / min; the anti-ultraviolet rolling rate is 60%-85%.

6. The fabric processing method for improving UV resistance and washability through dyeing process according to claim 1, characterized in that: In the dyeing process, the anti-ultraviolet far-infrared pre-drying temperature is 650-660°C, the anti-ultraviolet circulating air volume is 30%-60%, and the anti-ultraviolet drying room temperature is 90-100°C.

7. The fabric processing method for improving UV resistance and washability through dyeing process according to claim 1, characterized in that: In the dyeing process, the anti-ultraviolet color fixing solution is composed of: caustic soda: 0-12g / L, sodium sulfate: 220g / L, soda ash: 30g / L, resist salt: 2g / L, penetrant WA-MZ: 0.5-2g / L, dispersant ZB: 0.5-2g / L.

8. The fabric processing method for improving UV resistance and washability through dyeing process according to claim 1, characterized in that: In the dyeing process, the fixing speed is 50-60 m / min, and the rolling pressure of the anti-ultraviolet fixing process is 0.2-0.38 Bar.

9. The fabric processing method for improving UV resistance and washability through dyeing process according to claim 1, characterized in that: In the dyeing process, the temperature of the anti-ultraviolet color fixing steamer is 99-100.5°C.

10. The fabric processing method for improving UV resistance and washability through dyeing process according to claim 1, characterized in that: In the dyeing process, the temperature of the UV-resistant color fixing drying cylinder is 102-125°C.

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