Kodi Mungapewe Bwanji Sulphur Black Tender ya Thonje?

Utoto wa sulfure umagwiritsidwa ntchito kwambiri popaka utoto wa thonje, komanso nsalu zosakanikirana ndi thonje/viniloni. Umasungunuka mu sodium sulfide ndipo ndi chisankho chabwino kwambiri cha zinthu zakuda za ulusi wa cellulose, makamaka za Sulphur Black 240% ndi Sulphur Blue 7dyeing. Choyambitsa utoto wa sulfure sichigwirizana ndi ulusi, ndipo kapangidwe kake kali ndi ma bond a sulfure (-S-), ma bond a disulfide (-SS) kapena ma bond a polysulfide (-Sx-), omwe amachepetsedwa kukhala magulu a sulfhydryl (-SNa) motsogozedwa ndi sodium sulfide reductant. Umakhala mchere wa leuco sodium wosungunuka m'madzi. Leuco ili ndi mgwirizano wabwino wa ulusi wa cellulose chifukwa cha mamolekyu akuluakulu a utoto, omwe amapanga mphamvu zazikulu za Van der Waals ndi hydrogen bonding ndi ulusi. Ngakhale kuti mitundu yosiyanasiyana ya utoto wa sulfure si yokwanira, makamaka yabuluu ndi yakuda, mtundu wake si wowala, koma kapangidwe kake ndi kosavuta, mtengo wake ndi wotsika, njira yopaka utoto ndi yosavuta, kufananiza mitundu ndikosavuta, ndipo kusala kwa utoto ndikwabwino. Komabe, ziyenera kudziwika kuti utoto wina wa sulfure, monga wakuda wa sulfure, ungayambitse kufewa kwa Ulusi wa Cotton.

Kufewa kwa ulusi kuyenera kuganiziridwa pambuyo paSulphur Black 240%Utoto umagwiritsidwa ntchito popaka utoto. Zinthu zina zingawonjezere chiopsezo cha kusweka kwa ulusi, monga kugwiritsa ntchito utoto mopitirira muyeso, zomwe sizimangowonjezera mwayi wosweka, komanso zimachepetsa kulimba kwa utoto ndikupangitsa kutsuka kukhala kovuta. Kuphatikiza apo, utoto ukatha, uyenera kutsukidwa mokwanira kuti usatsukidwe mosayenera, ndipo utoto woyandama pa ulusiwo umatha kuwola mosavuta kukhala sulfuric acid panthawi yosungidwa, zomwe zimapangitsa kuti ulusiwo usweke.

Pofuna kuchepetsa kapena kupewa kufewa kwa ulusi, njira zotsatirazi zitha kuchitidwa:

1. Chepetsani mlingo wa utoto wakuda wa sulfure: mlingo wa utoto wapadera wa primary color mercerizing suyenera kupitirira 700 G/paketi.

2. Mukapaka utoto, tsukani bwino ndi madzi kuti mtundu woyandama usawole kukhala sulfure acid panthawi yosungira.

3. Gwiritsani ntchito mankhwala oletsa kuuma, monga urea, soda ash, sodium acetate, ndi zina zotero.

4. Mlingo wa kufewa kwa ulusi wotsukidwa ndi madzi ndi wochepa poyerekeza ndi ulusi wotsukidwa ndi alkali.

5. Umitsani ulusi wopaka utoto nthawi yake kuti ulusi wonyowa usatenthedwe pamene ukukulungidwa, zomwe zimapangitsa kuti kuchuluka kwa zinthu zotsutsana ndi kuphulika kwa ulusi komanso pH kuchepe.