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Ngaphambi kokuba intambo ibe yindwangu, intambo ye-warp kufanele idlule ngokuphindaphindiwe emathangeni, imihlanga nezinye izingxenye ze-loom. Ukungqubuzana, ukushuba nokugoba kungandisa ubunwele nokuhuzuka, ekugcineni kubangele ukuphuka kwentambo—ikakhulukazi emishinini yokuluka enesivinini esikhulu.
Ukulinganisa kwendwangu kwengeza isendlalelo sesikhashana sokuvikela ukuze i-warn ntambo ngaphambi kokulukwa. I-Polyvinyl Alcohol (PVA) ijwayele ukusetshenziselwa le njongo ngoba inamathela kahle entanjeni futhi yakha ifilimu eqinile, eguquguqukayo ngemva kokoma.
Yini eyenziwa yi-PVA Ngesikhathi Sokulinganisa Kwendwangu?
Ngesikhathi sokulinganisa, intambo ye-warp idlula isisombululo esilungisiwe sokulinganisa bese yomiswa. I-PVA ihlala phezulu njengefilimu encane evikelayo.
Le filimu ibopha imicu exegayo futhi idale indawo ebushelelezi yentambo. Njengoba intambo ihamba e-loom, ukunamathela kusiza ukunciphisa ukungqubuzana okuqondile phakathi kwemicu kanye nezingxenye zomshini. Empeleni, lokhu kungasiza ekulawuleni izinwele, imihuzuko kanye nokuphuka kwe-warp, okunomthelela ekwalukeni okuzinzile.
I-PVA ingasetshenziswa yodwa noma ihlanganiswe nesitashi, isitashi esishintshiwe kanye namanye ama-sizing agents. Uhlelo lwangempela luncike ku-fiber, ukwakheka kwentambo, isivinini se-loom, izakhiwo zefilimu ezidingekayo kanye nezindleko zokukhiqiza.
Kungani Ifilimu Ye-PVA Ibalulekile?
Ifilimu eyomisiwe kufanele ibe namandla ngokwanele ukuze ivikele intambo ngenkathi ihlale iguquguquka ngokwanele ukuze imelane nokunyakaza okuphindaphindiwe.
Ifilimu yokulinganisa i-brittle ingase iqhekeke noma ichitheke njengoba intambo igoba. Ukusebenzisa izinto zokulinganisa eziningi kakhulu kungenza intambo iqine futhi kudale ubunzima phakathi nokweluka noma ukucutshungulwa kamuva. Ngakho-ke inhloso akukhona ukukhiqiza ifilimu eqinile noma ewugqinsi, kodwa ukuzuza ukuvikeleka okufanele ngaphandle kokukhawulela ukunyakaza kwentambo.
Ibanga le-PVA, ukugxila kosayizi, izimo zokomisa kanye nenani elisetshenzisiwe konke kuthonya umphumela wokugcina.
Ibanga le-PVA Likuthinta Kanjani Ukusebenza Kwesayizi?
Akuwona wonke ama-PVA grade wokulinganisa izindwangu aziphatha ngendlela efanayo. Izici ezimbili ezibalulekile zokukhetha i-viscosity kanye nezinga le-hydrolysis.
I-Viscosity ithinta ukuvumelana kwesixazululo sokulinganisa kanye nenani lempahla efakwe entanjeni. Ibanga le-viscosity ephezulu lingakhiqiza utshwala obukhulu kakhulu endaweni efanayo, kuyilapho ibanga le-viscosity ephansi lingase libe lula ukulimpompa nokulisebenzisa.
Izinga le-hydrolysis lingathonya ukuhlakazeka, ukunamathela, izakhiwo zefilimu nokususwa okulandelayo. Lo mehluko ubalulekile uma izimo zokukhiqiza noma izidingo ezansi nomfula zishintsha.
I-Dotachem inikeza ezininganaPVA amabanga, okuhlanganisa i-PVA 1788, i-PVA 2488, i-PVA 1799 kanye ne-PVA 2499. Kunokuba bashintshe ibanga elithile bafake elinye, abakhiqizi bendwangu kufanele baziqhathanise besebenzisa ukugxilisa usayizi wangempela, izimo zokomisa kanye nenqubo yokuluka.
Kungani Kufanele Kucatshangelwe Ukudilizwa?
Ifilimu yokulinganisa iwusizo ngesikhathi sokuluka, kodwa ngokuvamile idinga ukususwa ngaphambi kokudaya, ukuphrinta noma ukuqeda. Uma izinto zokulinganisa eziningi zisala phezu kwendwangu, kungase kuthinte ukumuncwa kwamanzi futhi kuphazamise ukucutshungulwa okumanzi kamuva.
Ukusebenza kwe-desizing kungahluka ngebanga le-PVA, izinga lokushisa lamanzi, izimo zokugeza nezinye izithako ohlelweni lokulinganisa. Ngakho-ke i-PVA efanelekile kufanele ivikele intambo ngesikhathi sokwaluka kuyilapho isalawuleka phakathi nokucubungula kwendwangu okwalandela.
I-PVA kanye nesitashi ku-Textile Sizing
I-PVA ivame ukusetshenziswa kanye nesitashi noma isitashi esishintshiwe esikhundleni sokushintshwa okuphelele. Isitashi singanikeza isisekelo esingokongayo sezinhlelo eziningi zokulinganisa, kuyilapho i-PVA inikela ngamandla efilimu, ukuguquguquka nokunamathela. Isilinganiso phakathi kwabo sincike ohlotsheni lwentambo, izimo zokwaluka, izidingo ze-desizing kanye nezindleko zokukhiqiza.
I-PVA ye-Textile Sizing evela e-Dotachem
I-PVA inikeza isivikelo esisebenzayo phakathi kokulungiswa kwentambo nokukhiqizwa kwendwangu. Ifilimu yakhona inganciphisa ukungqubuzana nokulimala kwendawo, kuyilapho izinga elikhethiwe lithinta ukuphathwa kotshwala, ukusebenza kokweluka kanye nokukhishwa kwesikhumba.
I-Dotachem ihlinzeka nge-Polyvinyl Alcohol yokulinganisa izindwangu nezinye izinhlelo zokusebenza zezimboni. NgiyacelaXhumana nathingebanga lakho elidingekayo le-PVA, isicelo kanye nenani lokuthenga ukuze ucele imininingwane yomkhiqizo, imibhalo yezobuchwepheshe, ikhotheshini noma isampula yamahhala.
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