Vat Dub 8

Vat Black 8 yog ib qho siab -kev ua tau zoo anthraquinone-raws li vat dye, tshwm raws li cov hmoov dub sib xws. Cov khoom no nthuav tawm cov khoom lag luam ruaj khov, ua tsis muaj dej, acetone, ethanol, chloroform, thiab toluene, thiab me ntsis soluble hauv o-chlorophenol thiab pyridine. Nws cov xim tshwj xeeb muaj xws li: tshwm ua daj -ntsuab ntsuab nyob rau hauv concentrated sulfuric acid, ua ib tug dub precipitate raws li dilution; qhia ib qho xiav -xim ntsuab nyob rau hauv ib qho alkaline sodium hydrosulfite txo cov tshuaj; thiab tig reddish-xim av nyob rau hauv acidic tej yam kev mob. Cov yam ntxwv no tuaj yeem siv rau kev txheeb xyuas cov khoom sai.

Nyob rau hauv cov nqe lus ntawm dyeing daim ntaub ntawv, Vat Dub 8 feem ntau yog siv rau dyeing thiab luam ntawv ntawm paj rwb fibers thiab fabrics. Nws kuj yog tsim rau dyeing viscose fibers, txhob lo lo ntxhuav, thiab vinylon - paj rwb blended fabrics. Cov dye muaj cov txheej txheem ua haujlwm yooj yim, suav nrog jig dyeing thiab tso dyeing, thaum nws zoo - hmoov specification yog tshwj xeeb tshaj yog haum rau lub ncoo -steam dyeing txheej txheem, enabling uniform sib sib zog nqus dub ntxoov. Cov dyeing pom zoo affinity rau cellulose fibers thiab nruab nrab leveling zog, tso cai rau kev tswj cov xim sib xws los ntawm kev kho qhov txo qhov peev xwm thiab dyeing kub.

Nyob rau hauv cov nqe lus ntawm kev sib raug zoo nrog cov tom ntej tiav kev kho mob, cov khoom qhia zoo stability: nws cov ntxoov ntxoo tseem loj heev tsis hloov tom qab kev kho mob nrog cyanuric aldehyde los yog BHES resins; nws zoo li hloov bluer tom qab kho nrog trimethyl trimethylol melamine los yog DMEU resins; thiab nws qhia tau hais tias me ntsis reddish hloov tom qab kho nrog 2D resin. Qhov kev coj cwj pwm no muab cov lus qhia meej rau cov txheej txheem kev hloov kho hauv kev ua haujlwm ntawm cov ntaub tiav.

Peb cov khoom lag luam Vat Dub 8 tau dhau los ua cov txheej txheem ua kom zoo kom ntseeg tau tias cov khoom sib txawv me me thiab kev ua haujlwm txo qis. Peb kuj muab cov kev daws teeb meem dyeing thiab cov kev taw qhia kev ua kom haum rau cov fibers sib txawv thiab ua tiav cov txheej txheem raws li cov neeg siv khoom xav tau, ua rau nws muaj kev xaiv zoo rau siab -kawg dub cellulose textile dyeing.

Qhia:

Vat dyes yog ib chav kawm ntawm qib siab - cov dyes uas yog insoluble hauv dej. Lawv yuav tsum tau hloov mus rau hauv cov xim tsis muaj xim sodium ntsev los ntawm kev ua ntawm tus neeg sawv cev txo qis (xws li sodium dithionite) hauv qhov nruab nrab alkaline ua ntej lawv tuaj yeem zas fibers. Tom qab ntawd lawv tau oxidized rov qab rau hauv insoluble dyes kom ua tiav fixation. Lawv daim ntawv thov txheej txheem yog tshwj xeeb, nrog rau peb cov tshuaj tiv thaiv: txo → dyeing → oxidation, ua rau cov txheej txheem kuj complex. Lawv cov khoom tseem ceeb yog anthraquinones, indanes, thiab lawv cov derivatives, featuring ruaj khov molecular qauv uas muab colourfastness zoo heev tom qab dyeing. Lawv cov xim spectrum feem ntau npog nruab nrab mus rau tsaus ntxoov ntxoo.

Vat dyes feem ntau yog siv rau hauv cov ntawv thov uas yuav tsum tau muaj xim zoo nkauj, xws li cov khoom siv hauv tsheb, cov ntaub ntawv muaj xws li cov tsev pheeb suab ntaub thiab cov ntaub thaiv hnub ci, thiab siab - cov khaub ncaws ua haujlwm kawg.

Cov txheej txheem vat dyeing yog qhov nyuaj tshaj plaws ntawm txhua txoj kev dyeing, xav tau kev tswj hwm nruj heev ntawm cov tshuaj lom neeg, qhov kub thiab txias, thiab sijhawm ua haujlwm. Rau yarns thiab knitted fabrics, immersion dyeing txoj kev siv ib tug latent dye yog pom zoo. Rau siab - ntim cov ntaub ntaub, cov ntaub qhwv - dyeing txoj kev siv cov dye suspension yog pom zoo los txhim kho kev ua tau zoo. Kev vam meej nyob rau ntawm qhov tseeb ntawm kev txo qis - txheej txheem oxidation thiab qhov tseem ceeb tshaj plaws - kev kho ntawm scouring. Rau cov ntaub ntawv tshwj xeeb, peb tuaj yeem muab cov txheej txheem ntxaws ntxaws.