Tasirin wakili mai hana ruwa akan kaddarorin shafi da takarda mai rufi

Tare da saurin ci gaban masana'antar takarda, musamman ma takarda mai rufi an haɓaka cikin sauri, masana'antar bugawa akan buƙatun ingancin takarda suna samun girma da girma. Don tabbatar da ingancin bugu, saman takarda mai rufi dole ne ya sami ikon yin tsayayya da jita-jita. Rigar juriya na rigar yana nufin girman lalacewar saman takarda bayan wani yanki na takarda da kwali an yi shi da rigar gogayya a ƙarƙashin wani matsi, wanda ke nuna ikon saman takarda ba za a lalata shi ta hanyar rigar gogayya ba.

Kuma ga takarda mai rufi na ruwa tare da buƙatu na musamman, don samun damar yin amfani da ruwa mai tsabta da ruwa, a cikin tsarin samar da takarda, ban da tsarin sizing a cikin ma'auni na ma'auni da ma'auni mai mahimmanci, sakamako mafi sauri shine ƙara ƙarar juriya na ruwa a cikin tsarin shirye-shiryen shafi, don haka Layer Layer don samun kyakkyawan aikin ruwa.

A lokaci guda, dangane da la'akari da aminci da kare muhalli, bukatun ingancin ƙasa don takarda nade abinci da takarda na gida suna ƙara zama mai ƙarfi, kuma yanzu mafi yawan amfani da polyamide polyurea formaldehyde resin (PAPU) mai hana ruwa. Ana amfani da PAPU da yawa, saboda ba ya ƙunshi formaldehyde kyauta, kuma yana da sauri, yana aiki lokacin da ya tashi daga na'ura, kuma yana iya inganta yadda ya dace da daidaitawar takarda mai rufi a cikin aikin bugu.

PAPU yana da ƙaƙƙarfan aikace-aikace zuwa ƙimar pH, kuma ɗanƙoƙin PAPU da aka ƙara zuwa fenti yana da ƙarfi kuma saurin warkewa yana da sauri. PAPU kwayoyin sarkar ƙunshi chloroethanol kungiyar da polyamine kungiyar biyu aiki ayyuka kungiyoyin, wanda chlorethanol kungiyar da Paint m samar da sinadaran bonding bond, polyamine kungiyar da Paint m hade don samar da ionic bond, giciye-linked curing samar da wani cibiyar sadarwa na curing film, wanda shi ne babban tushen PAPU ruwa juriya, amma kuma a matsayin shafi ka'idar aiki wakili na ruwa.

A cikin ainihin amfani, PAPU ba zai iya samar da haɗin sinadarai kawai tare da sitaci mai rufi ba, amma kuma ya samar da haɗin gwiwar ionic tare da styrene butadiene latex, kuma rigar juriya na rufin yana ƙaruwa. Bugu da kari, raunin cationic Properties na PAPU ruwa resistant wakili kuma iya samar da micro-flocculation da anions a cikin shafi, inganta puffiness, porosity da permeability na shafi Layer, da kuma inganta bugu yi na ƙãre takarda.

Rheological dukiya alama ce mai mahimmanci na fenti, nau'in nau'in nau'in nau'in nau'in ruwa na PAPU zai iya ƙara danko na fenti, ƙara nau'in nau'in nau'in nau'in PAPU bayan an rage yawan asarar ruwa na fenti, riƙewar ruwa ya fi kyau. PAPU nau'in wakili mai tsayayyar ruwa ya dace da shirye-shiryen fenti mai tsayi, kuma aikin riƙe ruwa na fenti ya fi kyau.