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1、論文編號:1兩相法活性印花冷堆固色工藝探究TheResearchofTwo-PhasePrintingofReactiveDyesColdBatchTechnology學(xué)院名稱:紡織學(xué)院班級:輕化072學(xué)號:1學(xué)生:燕玲指導(dǎo)教師:武宗文2011年6月摘要目前印染廠普遍采用“一相法”印花工藝,由于印花色漿中需加入堿劑,活性染料會(huì)由此而引起水解,導(dǎo)致印花質(zhì)量的不穩(wěn)定。同時(shí),由于印花色漿中堿劑的加入,織物印花后需立刻進(jìn)行固色與后處理工序,否則在擱置過程中會(huì)有風(fēng)印等疵病產(chǎn)生?!皟上喾ā庇』üに嚪檄h(huán)保要求,不僅提高了印花質(zhì)量,而且降低了生產(chǎn)成本,本文對兩相法活性印花冷堆固色工藝進(jìn)行了詳細(xì)探討。本次
2、實(shí)驗(yàn)選用1%的活性染料和2%的褐藻酸鈉作色漿進(jìn)行印花,改變“兩相法”活性印花工藝中堿劑的種類及冷堆時(shí)間,通過刮樣,測量各個(gè)工藝所得印花織物的K/S值,即印花織物表面色深度,從而確定一個(gè)兩相法活性印花冷堆固色工藝的最佳工藝。研究結(jié)果表明:兩相法活性印花冷堆固色工藝的印花效果隨堿劑的種類、堿劑的浸漬時(shí)間以及冷堆時(shí)間不同而有所變化。單獨(dú)用氫氧化鈉作堿劑,由于堿性強(qiáng),活性染料與纖維反應(yīng)快的同時(shí),活性染料的水解速度也有很大的提升,印花效果不好;用氫氧化鈉和碳酸鈉的混合物作堿劑,冷堆10min的活性染料印花效果較好;用氫氧化鈉、碳酸鈉以及氯化鈉的混合物作堿劑,冷堆10min的活性染料印花織物的得色量、
3、線條精細(xì)度、花紋清晰度、滲透性比用氫氧化鈉、碳酸鈉混合物作堿劑所得印花織物的好,印花效果更為理想。兩相法活性印花冷堆固色工藝節(jié)省蒸汽和尿素,但其印漿原糊的要求比較高,另外多一道軋堿液的費(fèi)用。但兩相法印花工藝得色量高、固著率高,得色可比常規(guī)法深2-3成或以上,節(jié)約了染料成本。綜合節(jié)能、環(huán)保和質(zhì)量等各方面的有利因素,其綜合成本并不高。綜合考慮環(huán)保方面及經(jīng)濟(jì)效益各個(gè)方面,兩相法活性印花冷堆固色工藝將逐步取代“一相法”印花工藝,市場前景廣闊。關(guān)鍵詞:印花活性染料兩相法堿劑冷堆時(shí)間ABSTRACTCurrentlyprintinganddyeingmillwidelyusedone-phasepri
4、ntingprocess,Becauseofprintingpasterequiredtoaddalkaliagents,notonlywillarisereactivedyeshydrolysis,butalsosodiumalginateplasmaviscositywillalsofellsharply,leadingtothequalityofprintingisinstability,Atthesametime,becauseprintingpastecontainsalkaliagents,Afterprintingwemustcarryonfixationandfollowi
5、ng-treatmentimmediately,otherwise,spotwillariseinthefollowingprocessofbankup.“Two-phase”printingprocessmeetsenvironmentalrequirements,notonlyimprovestheprintingquality,butonlyreduceproductioncosts,two-phaseprintingofreactivedyescoldreactorfixingprocesswasdiscussedindetailinthearticle.Theexperiment
6、sused1%ofthereactivedyesand2%oftheaqueoussodiumalginateascolorantsforprinting,changesinalkali,varietiesandthetimeofcoldreactor,byscrapingsample,measuringthevariousprocessesofprintedfabricsfromK/Svalue,whichisprintedfabricsurfacecolordepth,thusdeterminedaoptimumprocessoftwo-phaseprintingofreactived
7、yescoldreactorfixingAlargenumberofexperimentsshowthatprintingresultoftwo-phaseactiveprintingcoldbatchfixationtechnologyvarieswiththekindsofalkaliagent,dippingtimeandthetimeofcoldbatch.Usingalonesodiumhydroxideasa