資源描述:
《優(yōu)秀畢業(yè)設計論文:紗的上漿性能研究》由會員上傳分享,免費在線閱讀,更多相關內(nèi)容在工程資料-天天文庫。
1、32sCoolMax/棉(55/45)紗的上漿性能研究摘要在祖克S432型漿紗機上對C/Coolmax45/5531.25tex紗進行高壓上漿,采用“先重后輕”的漿紗工藝滿足了織造生產(chǎn)的要求;漿料配方以內(nèi)烯酸為主漿料,輔以PVA1799及變性淀粉等漿料,漿液符合“高濃低粘”要求,增加了漿紗的耐磨性,減少了毛羽再生。漿紗的目的是為了賦予經(jīng)紗抵御外部復雜機械力作用的能力,捉高經(jīng)紗的可織性,保證織造過程的順利進行。除股線,單纖氏絲,加捻氏絲,變性絲,網(wǎng)絡度較高的網(wǎng)絡絲外,幾乎所有的短纖紗和長絲均需要上漿加工。上漿就是把一定數(shù)量的漿液粘附在經(jīng)紗上,經(jīng)烘燥
2、后形成漿膜。上漿后的經(jīng)紗,紗體周圍粘附一層漿液,烘燥后形成堅韌的漿膜,使毛羽貼伏,紗線光滑而耐磨;漿液中的小部分浸入紗線的里層,使纖維間相互粘接,增大纖維間的抱合力,捉高了紗線的斷裂強度。聚丙烯酸酯漿料在經(jīng)紗上漿屮起著重要作用,它可形成高含固率、低粘度的漿液,適合新型的“高濃、高壓、低粘”上漿工藝。通過分子構(gòu)成,聚丙烯酸酯漿料可以有漿膜柔韌、粘附力高、吸濕性低等特點,此外,聚丙烯酸酯漿料在一定程度上還是綠色漿料,易生物降解。這對環(huán)境保護有一定意義,因為它可部分取代難降解的PVA漿料。本文主耍研究對上漿過后紗線性能分析,經(jīng)過上漿過后紗線的性能冇所改
3、善,使之更加適合于后續(xù)工藝。關鍵詞:混紡紗;漿料;低粘度;高壓上漿;工藝;壓漿力SizingTechnologyResearchof32sCoolMax/Cotton(55/45)BlendedYarnsAbstractC/CooImax45/5531.25texwassizinginhighpressureinSuckerS432sizingmachinc,sizingtechnologyoffirstheavyandthenlightwasadoptedtosatisfythedemandofweavingproduction.Sizemix
4、tureformulaconsistofacrylicacidasmainsizemixture,PVA1799anddistortionstarchasassistantsizemixture.Sizereachesthedemandofhighdensityandlowviscosity,sizingabrasionresistemcewasstrengthened,andgeneratingofhairinesswasreduced.Thepurposeistogivesizingyarnoutercomplexmechanicalforc
5、eagainsttheability,improvethewarpknittingsex,canguaranteethesmoothprogressoftheweavingprocess.Inadditiontogrow,andthesinglethreadsilk,twistingfilamentdeformationsilk,networkoftallerNetworksilk,andalmostallofthestaplefiberyarnandfilamentareneedsizingprocessing.sizingistoacerta
6、innumberofgroutadhesioninthewarpends,afterthebakeddryformedafterperformances.Thewarpsizingyarnaroundthebody,alayerofslurry,roastedadhesionformationaftertheresilienceoftheperformancesofdry,makehairinessstickv,yarnsmoothandwear-resisting;Afewofslurryintoyarnlayer,thefiberstickt
7、opractice,increasemutualbetweenfiberhoidingforce,improvethebreakingstrengthoftheyarn.polyacrylicacidvinegarpulpinginwarpsizingplayanimportantrole,Itcanformhighsolidrateandlowviscositycontainingthegrout,andsuitableforthenewtypeof“highthick,highpressure,lowviscosity”sizingtechn
8、ology,throughthemolecularstructuraldesign,polyacrylicacidvinegarsize