Ukubaluleka Kwe-Printing Thickener

I-thickener yokuphrinta: Iwuhlobo lokujiya olusetshenziswa kakhulu embonini yokunyathelisa.Ekunyatheliseni, kusetshenziswa izinto ezimbili eziyinhloko, iglue nokunamathisela umbala.Futhi ngenxa yokuthi ngaphansi kwe-shear ephezulu, ukuvumelana kuzoncishiswa, ngakho-ke kuyadingeka ukusebenzisa i-thickener ukwandisa ukuhambisana kwezinto zokunyathelisa, bese kusetshenziswa i-thickener yokunyathelisa.

Indima eyinhloko ye-china yokunyathelisa i-thickener ukuhlinzeka ngezakhiwo ezinhle ze-rheological, ukudlulisa iglue noma unamathisele umbala esikrinini sokuphrinta kanye ne-roller yokuphrinta endwangu, ukuhlanganisa udayi kanye ne-fiber, futhi uqinisekise uhlaka lwephethini yokuphrinta.ehlukile.Iphethini icacile, umbala ugqamile futhi ufana;lapho udayi ulungisiwe, umkhiqizo wokusabela kanye nezinsalela zisuswa kalula enkambweni engezansi, okwenza indwangu izwakale ithambile.Kuyabonakala ukuthi i-thickener yokunyathelisa idlala indima ebaluleke kakhulu embonini yokunyathelisa.

Umlando Wokuthuthukiswa:

Ama-thickeners okuphrinta anomlando omude wokuthuthuka.I-slurry eyayisetshenziswa kudala kwakuyisitashi noma isitashi esishintshiwe.Lo mgqinsi ubizwa ngokuthi i-thickener yemvelo, kodwa lesi sigxivizo sokunyathelisa sinezindleko eziphezulu zokusetshenziswa, ukujula kombala okuphansi, ukungabonakali kahle, nokumelana nokushesha ukuwasha nakho akubi, futhi ukuthungwa kwendwangu akugculisi.Njengamanje, lezi zinhlobo zama-thickeners ziye zaqedwa kancane kancane.Kungeminyaka yawo-1950 kuphela lapho abantu bethula khona i-A-state pulp, okwenza ubuchwepheshe bokunyathelisa busetshenziswe kabanzi.I-state pulp thickener yenziwa ngokufakwa kwesivinini esikhulu sikaphalafini namanzi ngaphansi kwesenzo se-emulsifier.Ngenxa yokuthi le nto yokuqinisa iqukethe ngaphezu kuka-50 # uphalafini, futhi inani elikhulu elisetshenziswayo, lidala ukungcoliswa okukhulu komkhathi kanye nengozi yokuqhuma.Ngaphezu kwalokho, ukuvumelana kokunamathisela ukuphrinta akulula ukulungisa, futhi iphunga likaphalafini lizohlala phezu kwendwangu ngemva kokunyathelisa.Ngakho-ke abantu abakaneliseki ngalolu hlobo lokuqina kokuphrinta.

I-Thickener Yokuphrinta

Ngawo-1970, abantu baqala ukuthuthukisa nokukhiqiza ama-thickeners okwenziwa.Ukufika kwama-thickeners okwenziwa kuye kwakhuthaza kakhulu ukuthuthukiswa kokukhiqizwa kokunyathelisa futhi kwakhuphula ubuchwepheshe bokunyathelisa ezingeni elisha.Ixazulula izinkinga zokungcoliswa kwemvelo nokuphepha.Ngaphezu kwalokho, i-thickener yokwenziwa inezinzuzo zomphumela omuhle wokujiya, ukuthutha okulula nokugcinwa, ukulungiswa okulula, uhlaka olucacile, umbala ogqamile nokunye.

Ukuhlukaniswa kwe-printing thickener:

Kunezinhlobo eziningi zama-thickeners wokuphrinta, okwamanje ahlukaniswe izigaba ezimbili ezinkulu: i-nonionic ne-anionic.Ama-thickeners angama-Nonionic ngokuvamile aphuma ku-polyethylene glycol ether.Ama-thickeners anjalo kufanele abe nobubanzi obubanzi, kodwa umphumela wokuqina umpofu, inani lokwengeza likhulu, futhi inani elithile likaphalafini lisadingeka.Ngakho-ke, lokhu futhi kunciphisa ukuthuthukiswa kwayo okuqhubekayo.

I-anionic thickener iyinhlanganisela ye-polymer electrolyte, eyi-copolymer ene-light crosslinking.Ibonakala nge-viscosity ephansi, umphumela omuhle wokuqina, ukuzinza okuhle, ukungezwa okuphansi, i-rheology enhle, nomphumela wokuphrinta.kuhle.Okuvame kakhulu ama-polyacrylic compounds.Njengamanje, isakhi esivame kakhulu se-polyacrylic acid i-anionic polymer electrolyte.Isebenzisa indlela ye-emulsion polymerization ukwenza i-polymerize ngempumelelo ama-monomers ancibilika emanzini abe yimikhiqizo yobisi.Ilungele ukwenza unamathisele kanye nokuzinza kokunamathisela kwangempela nokunamathisela kombala.Indwangu ephrintiwe ithambile ekuthinteni futhi ingagcinwa isikhathi eside.Yilokho esivame ukukusho mayelana ne-PTF thickener.