Study On Micro-water Continuous Dyeing And Finishing Technology Of Polyester Fabric

In order to reduce the high pollution problem of the polyester fabric dyeing,and the problem of poor uniformity when the polyester fabric dyeing and heavy burden of subsequent washing.Based on the micro-water continuous dyeing and finishing of polyester,the following research is carried out:1)The preparation and dyeing properties of liquid disperse dyes were studied,and the feasibility of continuous dyeing of polyester was expounded.2)The effects of dyeing auxiliaries(thickeners,anti-migrating agents,penetrant agents,cross-linking agents)and finishing agents(deepening agents,polyester polyethers)on the continuous dyeing properties of polyester were investigated.3)The adaptability of liquid disperse dyes to polyester fabrics was examined.Research indicates:1?When the mass ratio of abrasive SD-25 and self-made liquid disperse dyes(Blue 291 and Blue 291:1)is 1:10,the self-made liquid disperse dye has excellent dyeing properties and the fabric has good rubbing color fastness(4-5 grade)and residual liquor absorbance(below 0.10),which could meet the requirements of polyester fabric dyeing.2?The particle size of self-made disperse dyes are nanometer,such as the disperse Blue 291,PDI index is 1.314,and D50 and D90 particle sizes are 0.046?m and 0.149?m,respectively,which could meet the dyeing requirements.3?Selecting 17 liquid disperse dyes for dyeing.The dyeing properties of the following liquid disperse dyes were compered:8 kinds of azo-structured liquid disperse dyes(Blue 291,Blue 291:1,Orange 30,Orange 30:3,Orange 44,Orange 889,Purple 93,Purple 93:3),4 kinds of anthraquinone-structured liquid disperse dyes(Blue 60,Red 86,Red 92,Purple 26),and 5 kinds of azoheterocycles liquid disperse dyes(Blue 20#,Red 177,Red 179,Orange 885,Black GK),and determined the optimum amount of disperse dyes which were suitable for continuous dyeing.4?The preferred 5 kind of disperse dyes(Blue 291,Red 179,Orange 30,Purple 93:3,Black GK)have been selected for dyeing,and have better uniformity and color fasmess than market solid disperse dyes(Blue 3GR,Red 3GR,Orange 3GR,Purple 3GR,Black 3GR),which can greatly reduce or eliminate the burden of subsequent washing.5?Adding synthetic thickener,anti-migrating agent,penetrant agent,cross-linking agent,fixative,deepening agent and polyester polyether finishing agent into dyeing medium could affect K/S value,levelness,and color fastness of the fabric.The optimized dyeing medium are as follows:x%liquid disperse dye,0.18%thickener PTF-A,0.12%thickener PTF-S,0.5%anti-migrating agent PD,0.3%penetrant JFC,and 2%polyester polyether D2,using two clip and two rolling method,steaming at 180? for 4 min(Blue 291 disperse dye),which the fabric can obtain excellect uniformity and good color fastness(4-5 grade).6?When the compound ratio of thickener PTF-A and PTF-S is 3:2,the dyeing performance is the best,and better than the thickeners(PTF-3,ST-313);The anti-migration agents(PD,MP)have better dyeing performance than the anti-migration agents(AKN-2076,AKN-2290);The penetrating agents(JFC,X405)have good lifting of dyeing properties;The cross-linking agent SaC-100 has better dyeing performance than the cross-linking agents(HD-110?UN-557?CX-110K);The fixative SD-80B has better dyeing performance than the fixatives(JYB-211?MR?FIX-3).7?When the amount of deepening agent(RK-1,T-60)is 1.0%,the dyeing fabric obtain best deepening effect and excellent levelness;When the amount of polyester polyether finishing agent D2 is 2.0%,the dyeing fabric has the best dyeing performance and is superior to the polyester polyether RS-30.