Dej-Soluble Sulfur Black: Cov khoom, kev siv, thiab cov ntsiab lus tseem ceeb

1. Cov Khoom Muag Khoom

Dej-Soluble Sulfur Black (CI Sulfur Black 1, soluble grade) yog ib qho tshuaj hloov kho derivative ntawm cov pa sulfur dub. Tsis zoo li cov tshuaj sulfur dyes ib txwm muaj, uas yog insoluble hauv dej thiab yuav tsum tau txo nrog sodium sulfide ua ntej siv, dej -soluble sulfur dub muaj cov hydrophilic pawg (xws li -SSO₃Na) nkag rau hauv nws cov qauv molecular. Qhov kev hloov kho no tso cai rau nws kom yaj sai sai hauv dej ntawm chav tsev kub, ua rau nws yooj yim dua los tuav.

Cov khoom lag luam tshwj xeeb muaj xws li cov hmoov dub lossis cov ntsej muag zoo nkauj, solubility tsawg kawg yog 160 grams ib liter ntawm 25 degrees Celsius, noo noo cov ntsiab lus tsis pub tshaj 7.0 feem pua, thiab insoluble impurities txwv rau 0.5 feem pua ​​lossis tsawg dua.

2. Chemical Structure thiab yam ntxwv

Dej-soluble sulfur dub feem ntau yog tsim los ntawm reacting pa sulfur dub nrog sodium sulfite los yog sodium bisulfite, tsim ib tug thiosulfonate derivative. Nws cov yam ntxwv tseem ceeb suav nrog cov dej solubility zoo heev uas tso cai rau kev so sai sai ntawm chav tsev kub yam tsis muaj cov seem insoluble, zoo thermal stability nyob rau hauv cov txheej txheem dyeing kub, thiab ib tug tshwj xeeb dyeing mechanism.

Txawm hais tias cov xim nws tus kheej yog dej -soluble, nws tsis muaj affinity ncaj qha rau cellulose fibers. Thaum lub sij hawm dyeing, sodium sulfide yuav tsum tau ntxiv los hloov cov dye rau hauv nws leuco (txo) daim ntawv ntawm nucleophilic thiab txo cov tshuaj tiv thaiv. Qhov no leuco daim ntawv ces nthuav tawm siab affinity rau cellulose fibers. Cov txheej txheem dyeing muaj plaub kauj ruam: txo qhov kev sib cais ntawm cov dye, adsorption ntawm leuco daim ntawv mus rau fibers, oxidation thiab xim kev loj hlob, ua raws li tom qab - kho nrog rau kev ntxuav thiab tiv thaiv - brittleness kev kho mob.

3. Cov ntawv thov loj

Dej-soluble sulfur dub yog siv dav hauv ntau qhov chaw lag luam. Hauv textile dyeing, nws yog siv rau hauv ncoo dyeing, qaug zog dyeing, thiab jigger dyeing txheej txheem rau paj rwb, linen, viscose, thiab lwm yam cellulose fibers. Hauv kev ua tawv tawv, nws tsim nyog rau chrome- tawv tawv. Rau kev tsim cov ntawv, nws yog siv rau hauv kev tsim cov ntawv dub thiab cov ntawv dub -cov ntawv tseem ceeb xws li cov ntawv ua si thiab cov boards. Tsis tas li ntawd, nws yog ua hauj lwm nyob rau hauv viscose fiber dope dyeing, qhov twg nws yog ntxiv ncaj qha thaum lub sij hawm viscose fiber ntau lawm rau loj xim.

4. Kev txiav txim siab tseem ceeb

Fiber Brittleness Risk

Cov qauv molecular ntawm sulfur dub muaj tsis ruaj tsis khov disulfide thiab polysulfide bonds. Nyob rau hauv cov huab cua ntub thiab sov, cov nyiaj no tuaj yeem oxidized los ntawm atmospheric oxygen los tsim sulfuric acid, uas hydrolyzes thiab degrades cellulose fibers, ua rau brittleness. Txhawm rau tiv thaiv lossis txo qhov kev pheej hmoo no, ntau yam kev ntsuas yog qhov tseem ceeb. Cov neeg ua haujlwm yuav tsum tswj cov tshuaj zas xim kom tsis txhob siv ntau dhau. Kev ntxuav huv huv tom qab dyeing yog tsim nyog los tshem tawm cov xim tsis muaj xim thiab cov seem sulfides. Anti- kev kho mob brittleness yuav tsum tau siv cov tshuaj xws li urea, sodium carbonate, lossis sodium acetate. Cov khoom yuav tsum tau qhuav tam sim ntawd tom qab dyeing thiab tso cai rau txias rau chav tsev kub ua ntej ntim. Raws li lwm txoj hauv kev, ib tus tuaj yeem txiav txim siab siv cov tshuaj tiv thaiv - cov tshuaj sulfur dub uas twb muaj formaldehyde thiab chloroacetic acid additives.

Eco-Tus phooj ywg Liquid Sulfur Black

Nyob rau hauv xyoo tas los no, ib puag ncig tus phooj ywg ua kua sulfur dub tau txais kev nrov nrov. Piv nrog rau cov khoom siv hmoov, kua sulfur dub muaj ntau yam zoo. Nws yuav tsum tsis muaj sodium sulfide rau ua ntej- kev sib cais thiab tuaj yeem siv zoo ib yam rau cov dyes ncaj qha. Nrog ze -xoo impurity cov ntsiab lus, nws muab cov xim ruaj khov ntxoov ntxoo thiab tsawg tsawg batch-rau-batch variation. Qhuav thiab ntub dej nrawm nrawm yog txhim kho los ntawm kwv yees li ib nrab ntawm qib piv rau cov ntaub ntawv hmoov. Cov khoom tsim tawm cov ntxhiab tsw qis thiab txo cov dej khib nyiab, ua rau nws zoo rau ib puag ncig. Nws tsis dhau oxidation lossis degradation thaum thauj thiab khaws cia. Thaum kawg, nws tso cai rau yooj yim ntawm -xav tau kev xa tawm, uas txo cov khoom pov tseg. Hauv Western industrialized lub teb chaws, eco- cov phooj ywg kua sulfur dub tau dhau los ua cov khoom lag luam tseem ceeb hauv khw.

Cov Qauv Zoo

Dej-soluble sulfur dub ua raws li cov qauv xws li GB/T 25809-2010. Cov cim tseem ceeb muaj xws li cov tsos zoo li cov hmoov dub los yog granules, xim lub zog ntawm 95 thiab 105 feem pua ​​​​ntawm cov qauv, dej-insoluble impurities tsis tshaj 0.5 feem pua, cov ntsiab lus noo noo tsis siab tshaj 7.0 feem pua, thiab solubility ntawm 60 degrees Celsius ntawm yam tsawg 60 grams ib liter.

5. Ntim thiab Cia

Dej-soluble sulfur dub yog hygroscopic heev thiab yuav tsum tau tiv thaiv los ntawm ya raws. Cov ntim khoom ib txwm muaj cov nruas hlau uas muaj cov hnab yas, nrog rau qhov hnyav ntawm 25 kilograms ib nruas. Cia yuav tsum nyob rau hauv qhov chaw txias, qhuav, zoo- qhov cua qhov chaw, kom deb ntawm tshav ntuj ncaj qha thiab qhov chaw tshav kub.

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