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Chapter2pre-treatment前处理Text2.1preparationbeforewetpre-treatment准备阶段Preparationprocess准备工作•1.Examiningforgraygoods原布检验•2.Clothturning翻布•3.Marking/stamping记号，标记•4.Sewing缝头•5.Singeing烧毛原布，坯布1.Examiningforgraygoods原布检验Specification规格Length长度Width宽度Warpandweftdensity经纬密度Strength强度Quality质量Brokenend断头Cutweft断纬Skips跳纱Nep棉结Oil-stainedyarn油污Reedmark筘路2.Clothturning翻布Inbatches成批Inboxes成箱Variety种类,processingtechniques加工工艺,batchnumber批量,boxnumber箱数,dateofdeliverygoods交货时间,codeofclothturningworker翻布工人号3.Marking/stamping记号，标记1.Whyshouldwesewthegraycloth???2.whatmeansofsewingisusedinthisprocess???Andwhy???(P.37)4.Sewing缝头5.Singeing烧毛•Thelastoperationbeforewetchemicalprocesses•Thefirstoperationofthepreparatoryprocessesnecessaryfordyeingorprinting湿纺准备阶段最后一步印染准备工序的第一步5.Singeing烧毛将纱线或织物迅速通过火焰或在炽热的金属表面擦过，烧去表面茸毛的工艺过程。Singeingmachines烧毛机Platesinger铜板烧毛机Revolving-rollersinger圆筒烧毛机Gassinger气体烧毛机Mostcommonlyused应用最广泛Text2.2Desizing退浆•singeing•desizingthelastoperationofpreparationsbeforechemicalprocesses前处理准备阶段的最后一步thefirstoperationofpreparatoryprocessesnecessaryfordyeingandprinting染色和印花的准备阶段第一步烧毛退浆desizing退浆sizing上浆de-前缀表示否定，除去的意思Text2.2Desizing退浆Sizing上浆Desizing退浆Protectivecoating保护层Dyeabsorption染料吸收definition定义•desizingistheprocessofremovingthesizingmaterialsfromthewarpyarninfabrics.退浆是指去除织物经纱上残留的浆料的过程。thinkabout1.howmanywaysdoweapplyindesizingprocess?2.whatarethey?Desizing退浆1.Enzymedesizing酵素退浆Fabricsthatcontainsstarchareusuallydesizedwithenzymes.淀粉酶，酵素2.Alkalidesizing碱退浆HotSodiumhydroxide热氢氧化钠Cotton/cottonblends棉/混棉3.Aciddesizing酸退浆Sulphuricacid硫酸Cotton棉Alkalidesizing碱退浆Aciddesizing酸退浆2.3textScouring练漂•whatarethescouringprocessing?2.3textScouring练漂Washingprocess练漂工序Degummingofsilk丝的脱胶Kierboilingofcotton棉的煮练Scouringofwool羊毛的练漂Twotypes：1.kiering漂煮2.continuoussteaming连续汽蒸Kiering漂煮Kier漂煮锅Kierliquor漂煮液1.5%causticsoda烧碱溶液+0.25%pineoilsoap松油皂液Continuoussteaming连续汽蒸•Steaming蒸汽•Washing洗涤Steepingandpressingofthecausticsodasolution以烧碱溶液浸轧复习review•Examiningforgraygoods•Clothturning•Marking/stamping•Sewing•Singeing•Specification•Length•Width•Warpandweftdensity•烧毛•翻布•规格•宽度•记号•缝头•经纬密度•原布检验•长度Translation翻译练习Scouringisacleaningprocessusedtoremoveimpuritiesonfibres,yarnsorcloth.Itistheeasiesttoperformattheclothstage.Concretely,scouringisanoperationinwhichthequantityofprotein,pectin,ash,andwaxinthefibreisreducedtoanamountwhichwillnotseriouslyinterferewithsubsequentdyeing;itisanecessarystepbeforebleachingandofitselfrendersthefabricconsiderablywhiter.2.4Bleaching漂白•Readparagraph1andanswerthequestion.Whyshouldwebleachthecloth???Todecolorizetheimpuritieswhichmaskthenaturalwhitenessoffibressoastoobtainwhiteclothortoprepareclothforfurtherfinishingprocessessuchasdyeingorprintingandincreasetheabilityofthefabrictoabsorbdyestuffsuniformly.杂质获得染料均匀地Bleachingagents漂白剂TypeoffibrepresentChemicalsinbleachingagentsHydrogenperoxide过氧化氢（双氧水）Sodiumhypochlorite次氯酸钠Sodiumchlorite亚氯酸钠Sodiumperborate过硼酸钠BleachingwithSodiumhypochlorite次氯酸钠NaClO次氯酸钠Electrolysisofbrine盐水电解Dissolvechloriteinasolutionofcausticsoda氯溶解于烧碱中BleachingwithHydrogenperoxide过氧化氢H2O2过氧化氢=双氧水Stableunderacidicconditionsandunstableinalkalinemedium酸性环境下稳定，碱性媒介下比较活跃BleachingwithSodiumchlorine亚氯酸钠NaClO2亚氯酸钠NaturalfibressyntheticfibresAcylic，polyester，nylon…Bleachingprocess漂白流程fabricsInropeoropen-widthform绳状或平幅状1.Saturatetheclothwiththebleachingagent织物浸透漂白剂2.raisethetemperature;holdthetime控制温度和时间3.thoroughlywashanddrythecloth彻底清洗加烘干Languagepoints语法点•Innaturalstate自然状态下•Staten.状态，情形•In…state=inthestateof…•Shewasinaterriblestatewhenwearrived.我们抵达时,她情绪很不好.•Thehousewasinadirtystate.那房子很脏.Languagepoints语法点•Decomposev.分解,腐烂•Themeatbegintodecomposeaftersometimeinthesun.•肉在太阳下放了一些时候後开始腐败。•Ifyouwanttodecomposeanorganiccompound,applyheat.•如果你想分解一个有机化合物,加热即可。Compose组成反义，否定DeLanguagepoints语法点•Astabilizerisvitalinperoxidebleaching过氧化物漂白过程中，稳定剂至关重要•Vitala.生死悠关的，极其重要的；•avitalcluetothekiller'sidentity有关杀人犯身分的重大线索•Theheartperformsavitalbodilyfunction.心脏起着维持生命的重要作用。Review复习•bleaching漂白•impurities杂质•obtain获得•bleachingagents漂白剂•Hydrogenperoxide过氧化氢•Sodiumhypochlorite次氯酸钠•Sodiumchlorite亚氯酸钠•Sodiumperborate过硼酸钠•Electrolysis电解•causticsoda烧碱•unstable不稳定•saturate浸透•thoroughly彻底地•medium媒介•ropeform绳状•open-widthform平幅状•bleaching•obtain•impurities•ropeform•bleachingagents•thoroughly•causticsoda•unstable•Electrolysis•saturate•medium•杂质•获得•漂白剂•电解•烧碱•漂白•绳状•不稳定•浸透•彻底地•媒介Saturate,decompose,impurities,vital,state,obtain•Fallenleavesgradually_________.•Healwaysmanagesto_______whathewants.•Mymotherisinapoor______ofhealth.•Thepoliceperforma_______roleinoursociety.•_________aspongewithwater.•Workersareremoving_________fromsilvertohavepure925silver.decomposeobtainstatevitalsaturateimpuritiesChapter2pre-treatmentreview•1.Examiningforgraygoods•2.Clothturning•3.Marking/stamping•4.Sewing•5.SingeingPreparationbeforepre-treatment前处理准备工序原布检验翻布标记缝头烧毛Vocabulary单词•Examiningforgraygoods•Clothturning•Marking/stamping•Sewing•Singeing•Specification•Length•Width•Warpandweftdensity•烧毛•翻布•规格•宽度•记号•缝头•经纬密度•原布检验•长度Translation翻译•丝的脱胶•棉的煮练•羊毛的练漂•酵素退浆•碱退浆•酸退浆•Degummi