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The Preparation and Application of the High-efficiency Soaping Agent for Silk Fabric Ptinted with Reactive Dyes

Author: WangZuo
Tutor: WuMingHua
School: Zhejiang University of Technology
Course: Industry Technology and Engineering
Keywords: soaping 1860quaternary ammonium salt high-efficiency soaping agent anti-staining property
CLC: TS194
Type: Master's thesis
Year: 2013
Downloads: 57
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Abstract


For a long time, the acid dye was mainly used in the printing of silk fabric, butthe wet fastness is poor to meet the requirements of the printed silk fabric. Reactivedye was the only one dye which can combined with silk fiber by covalent bond, thecovalent bond energy was much larger than hydrogen bond and van der force.However, the reactive dyes which failed to react with fiber were as same as the aciddyes, the wet fastness was poor, and the printed silk fabric was need being soaped.Not being allowed to soap at high temperature, there were some problems such asserious staining color and difficult in removing the floating color in the soaping ofprinted silk fabric, but there were lacked of good soaping agent in market to solvethose problems. So, in the thesis, the anti-staining properties of different surfactantswere studied to select the surfactant--octadecylamine polyoxyethylene ether (thenumber of EO was60)(abbreviation1860) as raw material for synthesizing highproperty anti-staining agent, and according to the requirements of the anti-stainingagent performance,1860was modified for its quaternary ammonium structure tosynthesize the1860quaternary ammonium salt. The compounding of the1860quaternary ammonium salt with other surfactant was studied, the property of soapingof compound agent was researched, the high-efficiency soaping agent for soaping ofprinted silk fabric with reactive dyes was prepared, and applied in soaping of printedsilk fabric. The condition of soaping technology for printed silk fabric was optimized.It was also applied in soaping of the digital printed silk fabric. The content and resultsof the research are as follows:1. The selection and synthesis of the high-efficiency anti-staining agent: Theionicities of nonionic surfactant octadecylamine polyoxyethylene ether (the number ofEO was15)(abbreviation1815), octadecylamine polyoxyethylene ether (the numberof EO was30)(abbreviation1830) and1860were inspected by methyleneblue-chloroform experiment, the interactions of1815,1830,1860with CationicGolden X-GL and Reactive Red EX-D were studied by Ultraviolet-VisibleAbsorption Spectrum, and the anti-staining properties of1815,1830,1860were testedby white cloth staining experiment in this chapter. Through the above research, thenonionic surfactant1860was selected out as raw material for making high-efficiencyanti-staining agent. In order to increase the cationic o f1860,1860quaternaryammonium was synthesized by two-step, at first,1860glycidyl ether was synthesized with1860and epichlorohydrin; then1860quaternary ammonium salt was synthesizedwith1860glycidyl ether and trimethylamine hydrochloride. The effects of thesynthesis factors on the1860glycidyl ether percent conversion were studied, thesynthesized conditions of1860quaternary ammonium salt were optimized, theoptimal conditions of synthesis for1860quaternary ammonium salt were obtained asfollows: the value of pH was8, the temperature and time of the synthesis reactionwere30℃and4h, n(1860glycidyl ether):n(trimethylamine hydrochloride)=1:2, andthe structure of the product were characterized by FTIR and1H NMR. The influenceof1860quaternary ammonium salt on the absorption spectrum of reactive dyes werestudied, and the compatibility of1860quaternary ammonium salt with anionicsurfactants which being often used as detergent were researched, and the Krafft pointand anti-staining property of1860quaternary ammonium salt was tested, the resultshowed that the absorption spectrum of Reactive Red EX-D was made red shift to20nm by1860quaternary ammonium salt, and the maximum absorption intension wasincreased0.065due to the1860quaternary ammonium salt, the compatibility of1860quaternary ammonium salt with anionic surfactants are good, the Krafft point was lessthan0℃, and the anti-staing property was slightly worse than PVP, but better thanMA-AA obviously.2. The preparation and property of high-efficiency soaping agent: Thecompounding of1860quaternary ammonium salt and the surfactants includinganionic surfactants and nonionic surfactants were studied,the anti-staining propertyand the washing property of the compound agnet were also studied.The suitablesurfactant used fo detergent which having synergism for1860quaternary ammoniumsalt were selected, the optimum formula of the soaping agent was determined byorthogonal experiment.The results showed that the anionic surfactant FMES wassynergies for1860quaternary ammonium salt, the compound agent of1860quaternary ammonium salt and AEO-9had good detergent property. The formulationof high-efficiency soaping agent was that: the dosage of the1860quaternaryammonium salt was16%, the dosage f AEO-9was12%, and the dosage of FMESwas1.0%.3. The application of the high-efficiency soaping agent in the soaping of the silkfabric printed with reactive dyes: The high-efficiency soaping agent was applied tothe soaping of the silk fabric printed with reactive dyes. The influence of soaping process factors on the soaping property were studied by single factor experiment, thecondition of soaping technology was optimized, the properties of the soaping agentwere tested, and the soaping angent was used in the soaping of digital printed silkfabric. The results showed the optimized condition of soaping process was that thedosages of the soaping agent was3g/L, the soaping temperature was60℃, thesoaping time was20min, and the bath ratio was1:50; the soaping agent had goodsoaping property, and it had also good effection in the soaping of digital printed silkfabric.The results of the study showed that: the soaping effects of high-efficiencysoaping agent being prepared in this thesis for soaping of silk fabric printedwith reactive dye was good, and its anti-staining property was excellent especially, the preparation of the soaping agent was successful.

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CLC: > Industrial Technology > Light industry,handicrafts > Textile industry,dyeing and finishing industry > Dyeing and finishing industry > Printing
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