原棉纤维的活性染料无盐染色
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摘要
含盐量高是纤维素纤维印染废水再生回用率低的主要原因。试验尝试对原棉纤维直接用活性染料在常温下进行无盐染色,以减少染色废水中的含盐量。研究结果表明,染色纤维的固色率随碱剂用量的增加呈现先增加后减小的趋势,当碱剂质量浓度为30 g/L时,染色纤维的固色率达到最大值91.0%。随着染色时间的延长,固色率逐渐增加,当染色时间为10 h时,固色率达到最大值79.3%。原棉纤维染色后,在皂洗过程中添加适量双氧水,可获得与常规散纤维染色工艺相同的染色效果。染色纤维的主体长度、断裂强度与短绒率均优于常规散纤维染色工艺。
The high salt content of dyeing effluents results in its low regeneration and reuse rate. In order to reduce the salt amount in dyeing effluents, salt-free dyeing of grey cotton fibers with reactive dyes at room temperature is investigated. The results show that the fixation yield first increases and then decreases with the increasing of alkali dosage. When the dosage of alkali agent is 30 g/L, the fixation yield can reach the maximum value of 91%. With the increase of dyeing time, the fixation yield increases gradually. When the dyeing time is 10 h, the fixation yield reaches the maximum value of 79.3%.Adding hydrogen peroxide into soaping process, the salt-free cotton fiber dyeings can achieve the same color performance with those with traditional dyeing process. The fiber length, the breaking strength and the short fiber content of salt-free dyeings are superior to those with traditional dyeing process.
The high salt content of dyeing effluents results in its low regeneration and reuse rate. In order to reduce the salt amount in dyeing effluents, salt-free dyeing of grey cotton fibers with reactive dyes at room temperature is investigated. The results show that the fixation yield first increases and then decreases with the increasing of alkali dosage. When the dosage of alkali agent is 30 g/L, the fixation yield can reach the maximum value of 91%. With the increase of dyeing time, the fixation yield increases gradually. When the dyeing time is 10 h, the fixation yield reaches the maximum value of 79.3%.Adding hydrogen peroxide into soaping process, the salt-free cotton fiber dyeings can achieve the same color performance with those with traditional dyeing process. The fiber length, the breaking strength and the short fiber content of salt-free dyeings are superior to those with traditional dyeing process.
引文
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[11]Chen L,Wang B,Ruan X,et al.Hydrolysis-free and fully recyclable reactive dyeing of cotton in green,non-nucleophilic solvents for a sustainable textile industry[J].J Clean Prod,2015.107:550-556.
[12]Fang K,Zhao H,Li J,et al.Salt-free dyeing of cotton fabries modified with cationic copolymer nanospheres using and acid dye[J].Fibers Polym,2017,18:400-406.
[13]Xinqing Z,Jianfei Z,Kuanjun F,et al.Low-water content wetsteaming fixation of cotton fabric padded with reactive blue 19[J].Journal of Textile Research,2017,38:129-133.
[14]Yu H,Wang Y,Zhong Y,et al.Foam properties and application in dyeing cotton fabries with reactive dyes[J].Color Technol,2014,130:266-272.
[15]Mao X,Zhong Y,Xu H,et al.A novel low add-on technology of dyeing cotton fabric with reactive dyestuff[J].Text Res J,2017,1-11.
[16]Biolchi F,Kawabata A,Taylor JA.Effect of sulphonation level upon the fixation and build up properties of reactive dyes[J].Color Technol,2006,122(3):153-156.
[17]Xie K.Gao A,Li M,et al.Printing properties of the red reactive dyes with different number sulfonate groups on cotton fabrie[J].Carbohydr Polym,2014,101:666-670.
[2]Fang Kuanjun,Zhao Huixia,Li Jizhen,et al.Salt-free Dyeing of cotton fabries modified with cationic copolymer nanospheres using an acid Dye[J].Fibers and Polymers,2017.18(2):400-406.
[3]Zhang Jianfei,Zhang Xinqing,Fang Kuanjun,Det al.Effect of the water content of padded coton fabrics on reactive dye fixation in the pad-steam process[J].Coloration Technology.2017,133(1):57-64.
[4]Chong C L,Lian S Q.Objective method for the assessment of levelness of dyed materials[J].Coloration Technology,1992.108(12):528-530.
[5]Wang L,Ma W,Zhang S,et al.Preparation of cationic cotton with two-bath pad-bake process and its application in salt-free dyeing[J].Carbohydr Polym,2009,78:602-608.
[6]Wang GW,Zheng CL,Sun J.Synthesis and salt-free dyeing characteristics of cationic reactive dyes containing polyetheramine segments[J].Coloration Technology,2016,132(4):344-349.
[7]Bae S-H,Motomura H,Morita Z.Effect of anionic groups in cellulose on the adsorption of reactive dyes on cellulose[J].Dyes Pigm,1998,36:61-77.
[8]Teng XX,Shi JW,Zhang SF.Impact of Reactive Dye Structures on Dyeing Properties in Salt-free Reactive Dyeing[J].Adv Mater Res,2013,781-784:2716-2721.
[9]Khatri A,White M,Padhye R,et al.The Use of Reflectance Measurements in the Determination of Diffusion of Reactive Dyes into Cellulosic Fiber[J].Color Res Appl,2014,39:63-69.
[10]Nallathambi A,Venkateshwarapuram Rengaswami GD.Industrial scale salt-free reactive dyeing of cationized cotton fabric with different reactive dye chemistry[J].Carbohydr Polym,2017,174:137-145.
[11]Chen L,Wang B,Ruan X,et al.Hydrolysis-free and fully recyclable reactive dyeing of cotton in green,non-nucleophilic solvents for a sustainable textile industry[J].J Clean Prod,2015.107:550-556.
[12]Fang K,Zhao H,Li J,et al.Salt-free dyeing of cotton fabries modified with cationic copolymer nanospheres using and acid dye[J].Fibers Polym,2017,18:400-406.
[13]Xinqing Z,Jianfei Z,Kuanjun F,et al.Low-water content wetsteaming fixation of cotton fabric padded with reactive blue 19[J].Journal of Textile Research,2017,38:129-133.
[14]Yu H,Wang Y,Zhong Y,et al.Foam properties and application in dyeing cotton fabries with reactive dyes[J].Color Technol,2014,130:266-272.
[15]Mao X,Zhong Y,Xu H,et al.A novel low add-on technology of dyeing cotton fabric with reactive dyestuff[J].Text Res J,2017,1-11.
[16]Biolchi F,Kawabata A,Taylor JA.Effect of sulphonation level upon the fixation and build up properties of reactive dyes[J].Color Technol,2006,122(3):153-156.
[17]Xie K.Gao A,Li M,et al.Printing properties of the red reactive dyes with different number sulfonate groups on cotton fabrie[J].Carbohydr Polym,2014,101:666-670.