Naphthol AS -BS

Naphthol AS-BS yog qhov siab-kev ua tau zoo azo dye coupling feem ntawm Naphthol AS series. Chemically, nws raug txheeb xyuas tias yog 2-Hydroxy-3-naphthylformyl-m-nitroaniline, ib qho qauv tsim tshwj xeeb kom xa cov kev sib txuas muaj zog thiab cov yam ntxwv ntawm cov xim sib txawv. Cov khoom yog muab los ua cov hmoov daj-ntsuab ntsuab nrog cov tshuaj purity siab (Ntau dua lossis sib npaug li 98%) thiab cov ntsiab lus zoo melting ntau ntawm 246-247 degree, qhia txog nws cov qauv molecular ruaj khov thiab tsim nyog rau kev tswj xyuas kev lag luam. Lub xub ntiag ntawm hydroxyl thiab amide ua haujlwm pab pawg hauv cov molecule plays lub luag haujlwm tseem ceeb hauv nws cov reactivity thiab kev loj hlob xim kawg.

Los ntawm kev xav ntawm physicochemical, Naphthol AS -BS yog xyaum insoluble hauv dej tab sis yooj yim tsim cov ntsev sodium soluble hauv alkaline aqueous daws. Tus cwj pwm no yog qhov tseem ceeb rau nws siv hauv cov txheej txheem azoic dyeing. Nws kuj yog soluble nyob rau hauv tej yam polar organic solvents, xws li dimethylformamide (DMF), uas txhawb nws siv nyob rau hauv pigment synthesis thiab kuaj formulation ua hauj lwm. Lub alkaline solubility tso cai rau lub coupling tivthaiv yuav tsum tau siv tusyees rau textile substrates, kom ntseeg tau tias uniform tis ua ntej kev loj hlob xim.

Hauv textile dyeing thiab luam ntawv, Naphthol AS-BS feem ntau yog siv los ntawm cellulose fibers xws li paj rwb thiab viscose, thiab nws kuj qhia tau hais tias zoo affinity rau tej yam regenerated thiab ntuj fibers, nrog rau cov txhob lo lo ntxhuav. Thaum lub sij hawm thov, cov khoom yog thawj yaj nyob rau hauv ib tug alkaline da dej los tsim cov sodium ntsev, uas yog absorbed los ntawm fiber los ntawm padding los yog impregnation. Tom qab kho, cov ntaub kho mob yog tsim nrog diazonium ntsev. Kev sib txuas cov tshuaj tiv thaiv tshwm sim ncaj qha hauv cov fiber ntau matrix, tsim cov xim tsis sib haum azo hauv qhov chaw. Qhov kev tsim cov xim sab hauv no ua rau muaj siab - lub zog xim pas dej nrog cov xim liab tiag tiag - ntxoov ntxoo, qhov tob zoo heev, thiab qhov ntxoov ntxoo zoo meej.

Fabrics dyed nrog Naphthol AS-BS ua tau zoo heev ceev ceev zog, nrog rau tsis kam mus ntxuav, txhuam (ob qho tib si qhuav thiab ntub), thiab lub teeb raug. Cov yam ntxwv no ua rau nws tshwj xeeb tshaj yog haum rau cov ntaub qhwv tsis tu ncua -dyeing thiab luam ntawv cov txheej txheem siv nyob rau hauv siab -kawg apparel fabrics, tsev textiles, thiab lwm yam khoom uas yuav tsum tau durability thiab xim brilliance.

Tshaj li kev siv textile, Naphthol AS-BS yog ib qho tseem ceeb nruab nrab rau kev sib txuas ntawm siab -kev ua tau zoo azo pigments. Cov pigments no tau siv dav hauv inks, industrial coatings, thiab cov xim yas, qhov uas lawv ua rau muaj zog tinting zog, zoo dispersion tus cwj pwm, thiab cov xim ruaj khov.

Los ntawm kev nyab xeeb thiab kev saib xyuas, cov khoom yuav tsum tau tswj hwm nrog kev ceev faj txog kev lag luam. Cov plua plav zoo tuaj yeem ua rau khaus khaus ua pa, yog li cov khoom siv tiv thaiv tus kheej tsim nyog thiab muaj cua txaus raug pom zoo thaum tuav thiab ua haujlwm. Ua raws li kev tswj hwm kev tsim khoom, peb Naphthol AS-BS muaj qhov zoo ib yam, txhim khu kev qha, thiab tsim nyog rau ob qho tib si dyeing thiab pigment- hais txog daim ntawv thov.

Cov khoom no yog siv los ua ib qho nruab nrab rau cov organic pigments, thiab tuaj yeem siv rau hauv kev tsim cov Pigment Liab 18, 23, 31, 114, 157, thiab 212. Nws kuj tseem siv tau rau dyeing paj rwb xov paj, paj rwb fabrics, vinylon, viscose, thiab txhob lo lo ntxhuav, nrog rau kev luam tawm ntawm paj rwb ntaub. Nws tuaj yeem siv los tsim cov pigments ceev, cov xim nruab nrab, thiab cov xim organic. Cov khoom no muaj affinity siab rau paj rwb fabrics thiab ib tug nruab nrab coupling peev xwm.