Me yasa zaren ke raguwa bayan rini da sulfur Black rini? Ta yaya zan iya hana shi? Menene ya kamata mu mai da hankali a cikin tsari?

Me yasa zaren juyawa ya karye bayanSulfur Black Br canza launin rini? Ta yaya zan iya hana shi? Menene ya kamata mu mai da hankali a cikin tsari?

Rini baƙar fata na sulfide wani babban fili ne na kwayoyin halitta wanda ya ƙunshi ƙarin sulfur, tsarinsa ya ƙunshi haɗin haɗin disulfide da polysulfide bond, kuma ba shi da kwanciyar hankali. Musamman, haɗin polysulfide na iya zama oxidized zuwa sulfur oxide ta iskar oxygen a cikin iska a ƙarƙashin wasu yanayin zafi da yanayin zafi, da kuma ƙara yin hulɗa tare da kwayoyin ruwa a cikin iska don samar da sulfuric acid, don haka rage ƙarfin zaren kadi, fiber brittleness. kuma duk zaruruwa suna shiga cikin foda lokacin da mai tsanani.

Don wannan dalili, don rage ko hana lalacewar fiber brittleness bayan kaɗa zaren daSulfur Black Br rini, dole ne a kula da waɗannan abubuwan:①AdadinSulfur Black Br rini ya kamata a iyakance, kuma adadin launin siliki na musamman kada ya wuce 700g/kunki. Saboda yawan rini yana da yawa, damar da za a iya fashewa yana da yawa, kuma saurin rini yana raguwa, kuma wankewa yana da wuyar gaske.②Bayan da launi ya kamata a wanke sosai, kada a wanke tsabta, launi mai iyo a kan layin yarn mai laushi yana da sauƙi don lalata cikin sulfuric acid a cikin tsarin ajiya kuma ya sa fiber ya rushe.③Bayan canza launin, urea, soda ash da sodium acetate dole ne a yi amfani da su don maganin kumburi.④Ana tafasa zaren da ake yi a cikin ruwa mai tsabta kafin a yi launin, kuma matakin ƙwanƙwasa zaren bayan an gwada shi ya fi na zaren da aka tafasa.⑤Ya kamata a bushe yarn mai juzu'i a cikin lokaci bayan canza launin, saboda rigar yarn ɗin kawai mai zafi ne yayin aiwatar da tari, wanda ke rage abun ciki na wakili na anti-brittleness da ƙimar pH na yarn mai jujjuyawar, wanda ba shi da daɗi ga anti-brittleness.

Bayan bushewa, ya kamata a sanyaya zaren kadi ta hanyar dabi'a, ta yadda zafin zaren za a iya tattarawa kafin ya fadi zuwa yanayin zafi. Saboda ba a sanyaya bayan bushewa da tattarawa nan da nan, zafi ba shi da sauƙi don rarrabawa, wanda ke ƙara kuzari don rushewar rini da acid, yana haifar da yuwuwar fiber ɗin ya lalace.

Zaɓin anti-brittle-Sulfur Black Br dyes, irin waɗannan rinannun an ƙara su zuwa formaldehyde da chloroacetic acid lokacin masana'anta, sakamakon methyl-chlorine vulcanized anti-brittle-black, don haka sauƙi oxidized sulfur atoms zama wani barga tsarin tsarin, wanda zai iya hana hadawan abu da iskar shaka na sulfur atoms don samar da. acid da kuma gaggautsa fiber.