Thumba la utoto wa latx liyenera kukhala ndi kufanana ndi kuphatikizika kwapakati ndi emulsion postricket, kuphatikizapo kanema wokutidwayo amakhala ndi chobwezera pang'ono, ndipo zipatso zomwe zingabwezeretse kukula ndikupanga kukula kwa tinthu. Thupi limasintha mlandu wa emulsion. Mwachitsanzo, Thicker yoyambirira idzakhala ndi zotsatira zosasinthika pa emulsiric emulsifier kuti muswe emulsion. Thupi labwino la utoto wa latx liyenera kukhala ndi zotsatirazi:
1. Mlingo wotsika komanso mawonekedwe abwino
2.
3, kusungidwa kwabwino kwamadzi, palibe chodabwitsa ku Buble Shenomenon
4. Palibe zovuta pazinthu zojambulajambula monga kukana scrub, gloss, kubisala ndi kukana kwamadzi
5. Palibe chowombera
Tekinoloje ya kukula kwa utoto wa latx ndi njira yofunika kwambiri yothandizira kuti alandunex ndikuchepetsa mtengo wake. Hydroxyethyl cellulose ndi wabwino kwambiri, womwe umakhala ndi zolimbitsa thupi pamtunda wokhazikika, wokhazikika komanso wopanda pake wa utoto wa latex.
Mu kupanga utoto wa latex, hydroxyethyl cellulose (hec) amagwiritsidwa ntchito ngati wobalalitsa, ndikuchepetsa utoto wosalala komanso wosalala. Chifuwa chabwino, chimatha kupirira mphamvu za kumeta ubweya wambiri, ndipo kumatha kupereka bwino, kukana ma pigment. Nthawi yomweyo, Hec ali ndi ntchito yabwino kwambiri, ndipo utoto wophatikizidwa ndi Hec ali ndi pseudoplastity, momwemonso njira zomangira monga kutsuka, kungothira, kuwononga, kuwononga, ndi kusangalatsa, komanso kusokonekera pang'ono. Hec ali ndi utoto wabwino kwambiri. Ili ndi kusokonekera bwino kwambiri ndi colorants ambiri ndi omanga, ndikupangitsa kuti zitheke kupanga utoto wa lalx ndi mawonekedwe abwino kwambiri komanso kukhazikika. Kusintha komwe kumagwiritsidwa ntchito popanga, ndichinthu chopanda ionic. Chifukwa chake, itha kugwiritsidwa ntchito mu mtundu wa PH
Palibe chovuta pa filimu yokutira. Chifukwa yankho la hec lochenjera limakhala ndi madzi osokoneza bongo pamiyeso, sikophweka kuti iwakhumudwitse pakupanga ndi kumanga, komanso mabowo a mapiri ndi ma pinki ndi ochepa.
Kukhazikika kwabwino. Posunga nthawi yayitali, kuperewera kwa pigment kumatha kusungidwa, ndipo palibe vuto la mtundu woyandama ndi maluwa. Pakakhala madzi ocheperako pa utoto ndipo kutentha kusungidwa kumasintha kwambiri. Makulidwe ake amakhalabe okhazikika.
Hec imatha kuwonjezera mtengo wa PVC (kuchuluka kwa pigment quarration) Kupanga kolimba mpaka 50-60%. Kuphatikiza apo, Thupi la Topcoat la utoto wa madzi limathanso kugwiritsa ntchito hec.
Pakadali pano, otsatsa obiriwira omwe amagwiritsidwa ntchito pazinthu zapamwamba zaposax amatumizidwa ku Hec ndi acrylic ma policy, homopolymer erlilsi acid ndi methacrylic acid).
Hydroxyethyl celluse ingagwiritsidwe ntchito
1. Monga gulu lazovuta kapena kuteteza
Nthawi zambiri, hec ndi mafayilo a 10 mpaka 30 MPAS amagwiritsidwa ntchito. Hec ya mpaka 300mpha gwiritsiridwa ntchito limodzi ndi anionic kapena cartic surfactonts, ndipo kubalalitsa kumachitika bwino. Kuchulukana nthawi zambiri kumakhala 0,05% ya unyinji wa monomer.
2, ngati thickener
Gwiritsani ntchito 15000mka. Mlingo wa mafayilo okwera kwambiri okwera pamtunda ndi 0,5 mpaka 1% ya unyinji wa zokutira za latex, ndipo mtengo wa PVC ungafike pafupifupi 60%. Mu utoto wa mochedwax, ntchafu ya pafupifupi 20Pa, s imagwiritsidwa ntchito, ndipo malo osiyanasiyana a utoto wa latex ndiwopambana. Mtengo wongogwiritsa ntchito Hec pamwamba 30o00pa.s ndi wotsika. Komabe, miyeso ndi zina mwa utoto wa latex sizabwino. Kuchokera pakuwona kwazinthu zabwino ndi kuchepetsa mtengo, ndibwino kugwiritsa ntchito sopani ya mahekisi ndi apamwamba kwambiri.
3. Njira yophatikizira mu utoto wa mochedwa
Msuzi wogwiritsidwa ntchito pamtunda amatha kuwonjezeredwa mu ufa wouma kapena mawonekedwe osalala. Ufa wowuma umawonjezedwa mwachindunji pakukupera kwa pigment. PH of the PH of the kuwonjezera iyenera kukhala 7 kapena yotsika. Zigawo za Alkaline monga zodetsa zitha kuwonjezeredwa pambuyo pa hec ikanyowa ndikubalalika kwathunthu. Kukhazikika kopangidwa ndi Hec kuyenera kuphatikiza kusalala pamaso pa Hec isanakhale ndi nthawi yokwanira kuti ikhale ndi vuto lokwanira ndikukhumudwitsidwa. Hec slurries amathanso kukonzedwanso ndi othandizira glycol.
4. Anti-Bloradew of Frax utoto
Madzi osungunuka am'madzi a biomegrades akaonekera pamawu omwe amapezeka mwachindunji kwa cellulose ndi zochokera. Kuphatikiza oteteza kujambulidwa payokha sikokwanira, zinthu zonse ziyenera kukhala za enzyme. Magalimoto opanga la latex uyenera kukhala oyera komanso owoneka bwino, ndipo zida zonse ziyenera kukhala zosasunthika nthawi zonse ndi steam 0.5% forcin kapena 0,1% Mercury Solution.
Post Nthawi: Nov-02-2022