Kev siv cov xim ua rau tib neeg lub neej muaj yeeb yuj.

Los ntawm cov khaub ncaws ntawm lub cev, lub hnab ev ntawv tom qab, ua ib daim phuam qhwv caj dab zoo nkauj, khi, feem ntau siv rau hauv cov ntaub knitted, cov ntaub woven thiab cov khoom fiber, zas xim rau lawv nrog xim liab, daj, ntshav thiab xiav.
Hauv paus ntsiab lus, ua ib qho organic compound, zas xim, nyob rau hauv nws lub xeev molecular lossis dispersed, muab lwm yam khoom ci thiab ruaj khov xim.

Hauv qhov tseem ceeb, cov xim sib cais yog ib hom xim tsis-ionic uas muaj cov dej tsawg solubility.

Nws cov qauv molecular yooj yim, qhov solubility qis, kom nws thiaj li muaj peev xwm tawg tau zoo hauv cov tshuaj, ntxiv rau kev sib tsoo nws kom tsawg dua 2 microns, kuj tseem yuav tsum ntxiv ntau cov dispersants, kom nws tuaj yeem tawg tau hauv cov tshuaj tas li. Yog li ntawd, hom xim no yog hu ua "disperse dye".

Nws muaj peev xwm muab faib ua xim txiv kab ntxwv, xim daj, xim xiav, xim liab thiab lwm yam, ntau xim raws li qhov sib txawv, kuj tuaj yeem tau ntau xim. Piv nrog rau lwm cov xim, cov xim disperse yog cov xim siv dav tshaj plaws thiab yog ib qho tseem ceeb tshaj plaws.

Vim yog siv cov xim disperse ntau heev, qhov kev hloov pauv ntawm nws cov khoom siv raw thiab cov khoom lag luam kuj cuam tshuam rau kev hloov kho sai ntawm tus nqi sib koom ntawm cov tuam txhab teev npe.

Thaum Lub Peb Hlis 21, 2019, muaj kev tawg ntawm xiangshui Chenjiagang Tianjiayi Chemical Factory hauv Yancheng. Pawg Neeg Saib Xyuas CPC thiab Pawg Sab Laj Hauv Xeev tau muab qhov tseem ceeb rau qhov kev tawg. Xeev Jiangsu thiab cov chaw haujlwm cuam tshuam tab tom ua lawv qhov zoo tshaj plaws los cawm thiab cawm cov neeg los ntawm txhua qhov chaw ntawm lub neej tab tom thov Vajtswv rau Xiangshui.

Tom qab qhov tawg, cov chaw ua lag luam tshuaj lom neeg thoob plaws lub tebchaws tau pib ua haujlwm tshuaj xyuas kev nyab xeeb thaum muaj xwm txheej ceev. Shaoxing Shangyu, lub nroog tsim cov xim loj, kuj tau pib tshuaj xyuas kev nyab xeeb thoob plaws cheeb tsam, uas yuav ua rau cov tuam txhab tshuaj lom neeg thoob plaws lub tebchaws ceeb toom thiab yuav tsum ua haujlwm kom muaj kev nyab xeeb.

Cov khoom tseem ceeb ntawm cov nroj tsuag tshuaj suav nrog cov xim sib cais thiab lwm cov xim sib xyaw, cov xim ncaj qha intermediates - m-phenylenediamine.

Tom qab qhov kev tawg, ntau lub tuam txhab ua xim disperse thiab cov chaw tsim khoom nruab nrab tau tso tseg kev txais cov xaj, ua rau muaj kev tsis txaus ntawm m-phenylenediamine, uas yuav ua rau tus nqi ntawm cov khoom lag luam disperse downstream nce siab.

Txij li thaum Lub Peb Hlis 24, tus nqi ua lag luam ntawm m-phenylenediamine tau nce ntau dua ob npaug, thiab kev sib xyaw ua ke ntawm qhov tsis txaus ntawm cov khoom lag luam thiab kev cuam tshuam rau lub peev xwm tsim khoom yuav thawb cov nqi disperse dye siab dua.
Thiab ob peb lub tuam txhab uas muag cov khoom lag luam disperse hauv tebchaws tau nce thiab poob qis, nws tsis nyuaj rau nkag siab. Tab sis qhov volatility ntawm disperse dyes tsis yog ib qho xwm txheej random hauv xyoo tas los no, thiab tib neeg tau paub ntev txog qhov volatility ntawm nws cov nqi khoom lag luam.

➤ Los ntawm qhov kev xav ntawm kev sib tw ua lag luam, kev ua lag luam disperse dye tau maj mam tsim kom muaj kev sib tw ua lag luam oligopoly, thaum qhov kev thov rau disperse dyes yeej ruaj khov. Kev nce ntawm qhov concentration ntawm kev ua lag luam disperse dye yuav cuam tshuam rau kev muab khoom thiab kev thov hauv kev ua lag luam, txhim kho lub zog sib tham ntawm cov neeg muag khoom, thiab tom qab ntawd txhawb kom tus nqi nce ntawm kev ua lag luam disperse dye.

Xyoo 2018, kev ua tau zoo ntawm cov tuam txhab teev npe nrog cov xim sib cais tau zoo dua, thiab xyoo 2019, yog tias qhov kev ua tau zoo txuas ntxiv mus, qhov nce nqi khoom yog qhov ntsuas ncaj qha thiab zoo tshaj plaws.

Ntawm qhov tod tes, vim yog kev tiv thaiv ib puag ncig ua ntej, qhov no kuj yuav ua rau cov nqi zas xim ntawm cov khoom tawg yuav txuas ntxiv mus rau qhov siab. Tsis yog tsuas yog cov nqi tswj kev tiv thaiv ib puag ncig nce siab xwb, xws li kev hloov kho tsis tu ncua ntawm kev txwv ntau lawm yuav cuam tshuam rau kev muab khoom ntawm kev lag luam zas xim tawg.

Txawm hais tias qee lub tuam txhab ua xim disperse uas ib zaug tso tseg kev tsim khoom yuav maj mam rov qab tsim khoom, nws yog qhov tshwm sim ntau dua uas cov khoom tsim tawm ntawm cov tuam txhab tsim khoom tsawg dua li qhov ua ntej kev tsim khoom raug tso tseg.

Qhov kev sib ntaus sib tua hnyav heev los tiv thaiv kev ua qias tuaj yuav thawb ntau lub lag luam uas muaj peev xwm ntau dhau los tshem tawm, thiab kev lag luam xim tseem muaj kev taug kev ntev heev.