Halaye da ƙwarewar bugawa na tawada mai tushen ruwa don takarda mai rufiakwatin cakulan
Tawada mai amfani da ruwa samfurin tawada ne mai kyau ga muhalli wanda ya sami karbuwa sosai a cikin 'yan shekarun nanakwatin yin burodiMenene bambanci tsakanin tawada mai ruwa da tawada mai bugu gabaɗaya, kuma menene abubuwan da ke buƙatar kulawa a amfani da su? A nan, Meibang zai yi muku bayani dalla-dalla.
An yi amfani da tawada mai tushen ruwa wajen buga takarda mai siffar kwali tsawon lokaci a ƙasashen waje kuma sama da shekaru 20 a gida. Buga takarda mai siffar kwali ya samo asali daga buga gubar (bugawa ta taimako), buga tawada mai siffar kwali (bugawa ta offset) da buga tawada mai wankewa ta roba zuwa buga tawada mai siffar kwali ta yau. Tawada mai siffar kwali ta ruwa mai sassauci ta kuma samo asali daga jerin resin da aka gyara na rosin-maleic acid (ƙaramin daraja) zuwa jerin resin acrylic (babban daraja). Farantin bugawa kuma yana canzawa daga farantin roba zuwa farantin resin. Mashin bugawa kuma ya samo asali a hankali daga mashin launi ɗaya ko biyu tare da manyan naɗe-naɗe zuwa mashinan FLEXO masu launuka uku ko huɗu.
Tsarin da halayen tawada mai tushen ruwa iri ɗaya ne da na tawada mai buga gabaɗaya. Tawada mai tushen ruwa galibi suna ƙunshe da launuka, masu ɗaurewa, masu taimako da sauran abubuwan haɗin. Masu launi sune masu canza launin tawada mai tushen ruwa, wanda ke ba tawada takamaiman launi. Domin sanya hoton ya yi haske a cikin bugawa mai sassauƙa, masu canza launin gabaɗaya suna amfani da launuka masu kyau na daidaiton sinadarai da ƙarfin launi mai yawa; Mai ɗaurewa ya ƙunshi ruwa, resin, mahaɗan amine da sauran abubuwan narkewa na halitta. Resin shine mafi mahimmancin sashi a cikin tawada mai tushen ruwa. Yawanci ana amfani da resin acrylic mai narkewa cikin ruwa. Bangaren mai ɗaurewa yana shafar aikin manne kai tsaye, saurin bushewa, aikin hana mannewa, da sauransu na tawada, kuma yana shafar watsa sheki da tawada na tawada. Haɗaɗɗun Amine galibi suna kula da ƙimar alkaline PH na tawada mai tushen ruwa, don haka resin acrylic zai iya samar da ingantaccen tasirin bugawa. Ruwa ko wasu abubuwan narkewa na halitta galibi resins ne da aka narkar, Daidaita danko da saurin bushewa na tawada; Manyan sinadarai masu taimakawa sun haɗa da: defoamer, blocker, stabilizer, diluent, da sauransu.
Ganin cewa tawada mai ruwa abu ne da ake amfani da shi wajen yin sabulu, yana da sauƙin samar da kumfa a amfani da shi, don haka ya kamata a ƙara man silicone a matsayin abin da zai hana kumfa da kuma kawar da kumfa, da kuma inganta aikin watsa tawada. Ana amfani da toshewa don hana saurin bushewar tawada mai ruwa, hana bushewar tawada a kan birgimar anilox da kuma rage manna. Mai daidaita tawada zai iya daidaita ƙimar PH na tawada, kuma ana iya amfani da shi azaman mai narkewa don rage danko na tawada. Ana amfani da mai narkewa don rage launin tawada mai ruwa, kuma ana iya amfani da shi azaman mai haskakawa don inganta hasken tawada mai ruwa. Bugu da ƙari, ya kamata a ƙara wasu kakin zuma a cikin tawada mai ruwa don ƙara juriyar lalacewa.
Ana iya haɗa tawada mai ruwa da ruwa kafin a busar da ita. Da zarar tawada ta bushe, ba za ta sake narkewa a cikin ruwa da tawada ba. Saboda haka, dole ne a juya tawada mai ruwa sosai kafin amfani da ita don kiyaye daidaiton abun da ke cikin tawada. Lokacin ƙara tawada, idan tawada da ta rage a cikin tankin tawada ta ƙunshi ƙazanta, ya kamata a fara tace ta, sannan a yi amfani da ita da sabon tawada. Lokacin bugawa, kar a bar tawada ta bushe a kan birgima na anilox don guje wa toshe ramin tawada. Toshe watsa tawada mai yawa yana haifar da rashin kwanciyar hankali a bugu. A lokacin bugawa, ya kamata a jika farantin lankwasawa koyaushe don guje wa toshe tsarin rubutu akan farantin bugawa bayan tawada ta bushe. Bugu da ƙari, an gano cewa lokacin da ɗanɗanon tawada mai ruwa ya ɗan fi girma, bai dace a ƙara ruwa ba don guje wa shafar daidaiton tawada. Kuna iya ƙara adadin mai daidaita da ya dace don daidaita shi.
Lokacin Saƙo: Maris-15-2023
