Study On Thermosol Dyeing Technology Of Polyester Fabric

In order to reduce the high pollution problem of polyester dyeing,improve uniformity of thermosol dyeing technology of polyester fabric and reduce the burden of restore cleaning and washing.The following research was from the aspects of liquid dye,thermosol dyeing processes,additives,finishing agents etc.1)The preparation and dyeing properties of liquid disperse dyes were investigated and the fixation processes of thermosol dyeing were optimized.The feasibility of thermosol dyeing was briefly described.2)The effects of thickener,anti-swallowing agent,penetrating agent,adhesive,cross-linking agent,deepening agent and polyester and polyether finishing agent on thermosol dyeing properties were studied.3)The promotion ability of liquid disperse dyes were compared,dyeing characteristics of different polyester fabrics specifications and different post-treatment methods were studied.The evaluation method were as follows: K/S value,color characteristic value(L * a * b *),K/S ratio(RF value),unevenness of dyeing,rubbing and soap color fastness etc.Research indicates:1?when abrasive SD-A accounted for 20% of dye weight,the self-made liquid disperse dye had small particle size,excellent dyeing properties and good color fastness,which could meet the requirements of polyester fabric dyeing.Such as disperse dyes(Blue 183 and Blue 183: 1)had the following good color fastness: dry/wet rubbing fastness(4-5 grade)and soap fastness(4-5).2?The dyeing properties of the following self-made liquid disperse dyes were compared: 12 kinds of azo-structured dyes(Orange 29,Orange 44,Orange 30,Orange 61,Orange 73,Orange 288,Purple 63,Purple 93,Brown 19,Blue 79,Blue 183,Blue 183: 1),anthocyanin-based dyes(Purple 26,Red 86,Blue 31: 1,Blue 56,Blue 60,Blue 77)and six heterocyclic azo dyes(Yellow 114,Yellow 119,Yellow 211,Red 153,Red 179),it determined the maximum amount of dyes which was suitable for hermosol dyeing.3?Self-made disperse dyes(Red 86,Orange 288,Yellow 211,Blue 183,Purple 93)had better color fastness and dyeing uniformity than market printing disperse dyes(Yellow PG,Blue P-2G,Black PG,Black PD,Golden PR,Orange P-RL).4?Adding thickener,anti-swallowing agent,penetrating agent,adhesive,cross-linking agent,deepening agent and polyester and polyether finishing agent into dyeing solution could affect K/S value,RF value and unevenness value on the dyeing properties of polyester fabrics.The composition of optimized dyeing solution as follows: X% liquid disperse dye,0.3% thickener PTF-A,2.0% anti-swim agent MP,2.0% adhesiveSD-1,0.3% penetrant JFC.Padding method was two dip two rolling and the baking condition was 180~190?×60s(for high temperature dye)or 160?×90s(for medium temperature dyes,such as FB).That had good dyeing uniformity and good color fastness characteristics.5?The dyeing properties of thickener PTF-A,anti-swelling agent MP,penetrant JFC and adhesive SD-1 were better than the other five kinds of thickeners(PTF-3,PTF-S,CMC,Sodium alginate and PVA),penetrant fast T and the other two kinds of adhesives(SD28?HD).Moreover,the addition of eight crosslinking agents(HD100?HD 105?HD 110?H302?H602?SaC-100?UN557?UN125F)would harden the feel of dyed fabric;But the deepening agent(MD-SD,AB-8K)or polyester and polyether finishing agent(MS-12,RS-33)had good dyeing uniformity and color Fastness(?4 level).6?The four liquid disperse dyes(Red 885,Orange 889,Yellow 163 and Blue 367)had good promotion ability,dyeing uniformity and color fastness(?4 level);Type of polyester fabric would affect K/S value,and the K/S value from low to high as follows: polyester satin <210T polyester taffeta <high elastic double crepe <polyester flannel <polyester flocking;Except the two fabric(polyester flocking and polyester taffeta),the other three kinds of fabrics had good dyeing uniformity and color fastness.7?Except green MR,the other five kinds of liquid dyes(Red MR,orange MR,yellow MR,green MR,blue MR,purple MR)had good dyeing uniformity and excellent color fastness(?4level),the thermosol dyeing technology of polyester fabricwas a low wastewater discharge technology.