＞Physicochemical Properties of Direct Scarlet 4BE

Direct Scarlet 4BEndi ofiira achikasu akasungunuka m'madzi, lalanje akasungunuka mu mowa, ndipo amasungunuka pang'ono mu acetone, zomwe zimapangitsa kuti pakhale njira yofiira yowala bwino.Pafupifupi osasungunuka mu ether.

＞ Kufotokozera kwa Dyes Mwachindunji

Direct Scarlet 4BE ndi utoto womwe ukhoza kutenthedwa ndi kuwiritsa mu gawo lopanda ndale komanso lofooka popanda thandizo la mordants.Utoto wachindunji umapangidwa ndi mphamvu ya hydrogen bonding van der Waals pakati pa utoto wachindunji ndi ulusi wa thonje. Mitundu yolunjika imakhala ndi magulu osungunuka m'madzi monga magulu a sulfonic acid (-SO3H) kapena magulu a carboxyl (-COOH) mawonekedwe a mzere.Mitundu yonunkhira ya mpheteyo ili mu ndege imodzi, kotero kuti utoto wachindunji umagwirizana kwambiri ndi ulusi wa cellulose.Amatha kupakidwa utoto mwachindunji m'njira yosalowerera ndale ndipo amatha kupakidwa utoto malinga ngati utotowo wasungunuka m'madzi.Kwa utoto wachindunji wosasungunuka bwino, phulusa la soda litha kuwonjezeredwa kuti lisungunuke.Utoto wachindunji sulimbana ndi madzi olimba.Ambiri aiwo amatha kuphatikiza ndi ayoni a calcium ndi magnesium kuti apange ma inseluble precipitates, kupangitsa madontho pansalu zopaka utoto.Choncho, utoto wachindunji uyenera kusungunuka m'madzi ofewa.Ngati kuuma kwa madzi odaya omwe amagwiritsidwa ntchito popanga kumakhala kwakukulu, phulusa la soda kapena sodium hexametaphosphate akhoza kuwonjezeredwa, zomwe sizingangothandiza kusungunula utoto komanso kufewetsa madzi.