Naphthol AS -CA

Naphthol AS-CA, tseem hu ua Naphthol AS-CL, yog ib hom naphthol derivative tshwj xeeb tsim los rau kev sib txuas ntawm siab -kev ua haujlwm azo dyes. Nws tus lej CAS tshwj xeeb txawv nyob ntawm qhov sib txawv isomer. Cov khoom no zoo li cov hmoov zoo nrog lub teeb xim thiab zoo -cov qauv siv lead ua. Nws tseem nyob ruaj khov ntawm chav tsev kub tab sis yuav tsum tau muab khaws cia hauv qhov ntim, lub teeb -cov ntaub ntawv pov thawj kom ntseeg tau tias nws cov tshuaj lom neeg ua haujlwm thiab ua haujlwm tau ntev -. Raws li ib qho tseem ceeb coupling tivthaiv nyob rau hauv cov dej khov dye system, nws cov yam ntxwv tseem ceeb nyob rau hauv nws lub peev xwm los tsim soluble sodium ntsev nyob rau hauv alkaline aqueous daws, ua kom ib tug zoo adsorption mus rau cellulose fibers (xws li paj rwb thiab rayon) thiab protein fibers (xws li txhob lo lo ntxhuav).

Tom qab ntawd, nws nkag mus rau hauv -situ coupling cov tshuaj tiv thaiv nrog diazonium ntsev uas nkag mus rau hauv cov fiber ntau, tsim cov xim azo insoluble hauv fiber ntau matrix. Qhov tshwj xeeb "hauv-fiber synthesis" mechanism tso cai rau nws tsim cov xim dav dav (xws li vibrant liab thiab xim av) nrog nplua nuj, saturated ntxoov, thaum imparting tshwj xeeb lightfastness thiab washfastness rau cov khoom kawg. Nws yog dav siv nyob rau hauv high-kawg textiles, tawv dyeing, thiab kev tsim ntawm siab -pigments thiab inks.

Hais txog kev ua haujlwm ntawm daim ntawv thov, Naphthol AS-CA qhia tau tias muaj txiaj ntsig zoo. Hauv kev lag luam textile, nws yog qhov tshwj xeeb tshaj yog tsim rau cov ntaub ntawv tsis tu ncua -dyeing txheej txheem nrog cov kev cai nruj xim, xws li kev tsim cov ntaub ua haujlwm, cov ntaub ntawv zoo nkauj, thiab siab - cov khoom siv hauv tsev zoo. Hauv kev lag luam tawv, nws muab kev nkag mus zoo ib yam thiab cov xim ruaj khov nrog cov adhesion muaj zog. Tsis tas li ntawd, raws li ib qho tseem ceeb nruab nrab ntawm cov organic pigments, nws yog ib qho tseem ceeb raw khoom rau synthesizing siab -kev ua tau zoo azo pigments. Cov pigments no tau siv dav hauv cov tsheb coatings, cov xim muaj xim, thiab cov xim yas vim lawv cov huab cua zoo heev thiab kev ruaj ntseg tshuaj.

Los ntawm kev saib xyuas kev nyab xeeb tshuaj, Naphthol AS-CA yog ib yam tshuaj muaj zog. Nws cov hmoov thiab alkaline ua haujlwm daws yuav ua rau khaus tawv nqaij, qhov muag, thiab ua pa mucosa. Yog li ntawd, kev ua raws li cov txheej txheem kev nyab xeeb yog qhov tseem ceeb thaum lub sijhawm ua haujlwm: tshuaj lom neeg- hnab looj tes tiv thaiv, tsom iav tiv thaiv, thiab plua plav qhov ncauj qhov ntswg yuav tsum tau hnav, thiab qhov hnyav thiab kev npaj yuav tsum tau ua nyob rau hauv qhov dej zoo- qhov cua qhov chaw kom txo tau qhov raug mob. Hais txog kev tswj hwm ib puag ncig, cov dej khib nyiab ntau lawm uas muaj cov khoom nruab nrab ntawm cov khoom no xav tau kev kho tshwj xeeb kom huv si decompose azo intermediates thiab tiv thaiv tawm ncaj qha los ntawm kev cuam tshuam ib puag ncig. Cov khoom pov tseg yuav tsum raug kho raws li cov tshuaj phem thiab muab pov tseg kom nruj raws li cov cai hauv zej zog kom ntseeg tau ib puag ncig kev nyab xeeb thoob plaws hauv lawv lub neej.

Cov Naphthol AS-CA cov khoom uas peb muab yog tsim nyob rau hauv cov txheej txheem nruj tswj kom ntseeg tau siab purity thiab zoo batch -rau-batch sib xws. Peb tsis tsuas yog muab cov khoom zoo siab - cov khoom zoo uas ua tau raws li cov kev qhia tshwj xeeb tab sis kuj tau cog lus los muab cov kev pabcuam dav dav, suav nrog kev ua kom zoo dua qub, kev qhia ua haujlwm nyab xeeb, thiab kev txhawb nqa kev ua raws. Qhov no ua rau peb cov neeg siv khoom ua tiav cov xim zoo nkauj thaum ua kom muaj kev nyab xeeb, ib puag ncig tus phooj ywg, thiab kev tsim khoom ruaj khov.

Cov khoom no yog siv los ua cov organic pigment liab 269. Nws kuj tseem siv tau los ua tus neeg sawv cev rau dyeing liab, feem ntau rau dyeing paj rwb fabrics, viscose, thiab nylon. Feem ntau nws tsis yog siv rau kev luam ntawv ntawm paj rwb xov paj thiab paj rwb ntaub, vim nws muaj affinity siab rau paj rwb.

Peb muab 24-teev tom qab- kev muag khoom. Rau cov lus nug txog cov khoom lag luam, thov hu rau peb ntawm email lossis xov tooj. Peb muaj ntau tus neeg mob thiab txaus siab rau cov neeg ua haujlwm nrog ntau xyoo ntawm kev muag khoom thiab kev paub txog tshuaj, npaj txhij los pab koj.