Kodi Mungapewe Bwanji Sulfur Black Tender Ya Cotton Fiber?

Utoto wa sulfure umagwiritsidwa ntchito kwambiri popaka utoto wa thonje, komanso nsalu zophatikizika za thonje/vinylon. Imasungunuka mu sodium sulfide ndipo ndi yabwino kusankha zinthu zakuda za ulusi wa cellulose, makamaka Sulfur Black 240% ndi Sulfur Blue 7dyeing. Kholo la utoto wa sulfure alibe mgwirizano ndi ulusi, ndipo kapangidwe kake kali ndi zomangira za sulfure (-S-), zomangira za disulfide (-SS) kapena zomangira za polysulfide (-Sx-), zomwe zimachepetsedwa kukhala magulu a sulfhydryl (-SNa) pansi pa zochita za sodium sulfide reductant.Amakhala sungunuka madzi leuco sodium mchere. Leuco imagwirizana bwino ndi ulusi wa cellulose chifukwa cha mamolekyu akuluakulu a utoto, omwe amapanga Van der Waals zazikulu ndi mphamvu zomangira hydrogen ndi ulusi. Ngakhale mtundu wa utoto wa sulfure suli wathunthu, makamaka buluu ndi wakuda, mtunduwo siwowala, koma kapangidwe kake ndi kosavuta, mtengo wake ndi wotsika, njira yopaka utoto ndiyosavuta, yofananira mitundu ndiyosavuta, komanso kufulumira kwamtundu ndikwabwino. .Kuyenera kudziwidwa, komabe, kuti mitundu ina ya sulfure, monga sulfure wakuda, ingayambitse kutsekemera kwa Cotton Fiber.

Kukoma kwa fiber kuyenera kutsatiridwa pambuyo pakeSulfur Black 240%utoto umagwiritsidwa ntchito popaka utoto. Zinthu zina zitha kukulitsa chiwopsezo cha brittleness ya ulusi, monga kugwiritsa ntchito kwambiri utoto, zomwe sizimangowonjezera mwayi wa brittleness, komanso zimachepetsa kuthamanga kwa mtundu ndikupangitsa kuti kuchapa kumakhala kovuta. Kuonjezera apo, pambuyo popaka utoto, iyenera kutsukidwa mokwanira kuti isatsukidwe kodetsedwa, ndipo mtundu woyandama pa ulusi ndi wosavuta kuwola kukhala sulfuric acid posungira, zomwe zimapangitsa kuti ulusiwo ukhale wolimba.

Kuti muchepetse kapena kuletsa kufalikira kwa fiber, njira zotsatirazi zitha kuchitidwa:

1. Chepetsani mlingo wa utoto wakuda wa sulfure: Mlingo wa mercerizing utoto wapadera wamtundu wapadera suyenera kupitilira 700 G / phukusi.

2. Mukataya utoto, sambani bwino ndi madzi kuti mtundu woyandama usawole kukhala asidi wa sulfure posunga.

3. Gwiritsani ntchito anti-tender treatment agents, monga urea, soda ash, sodium acetate, etc.

4. Kuchuluka kwa ulusi wosuliridwa ndi madzi ndikocheperako poyerekeza ndi ulusi wopangidwa ndi alkali.

5. Yanikani ulusi wopakidwa nthawi kuti mupewe kutentha kwa ulusi wonyowa mukamatungika, zomwe zimapangitsa kuchepa kwa anti-brittleness agent ndi pH value.