Video: Direct dyes yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Lub ntsiab lus ntawm dye .: dej-soluble xim feem ntau ntawm cov chav kawm azo uas yog siv nyob rau hauv alkaline los yog nruab nrab tov tshwj xeeb tshaj yog rau dyeing cov khoom siv cellulosic (xws li paj rwb lossis ntawv) ncaj qha.
Ua raws li qhov no hauv kev xav, dab tsi yog qhov ncaj qha zas plaub hau xim?
Ib ntus lossis semi-permanent xim ( ncaj dye ): tsis muaj lightening ntawm plaub hau , tsis muaj peroxide, muaj dyes uas twb tsim ua ntej daim ntawv thov, ntxuav tawm nyob rau hauv ob peb ntxuav.
Tsis tas li ntawd, dab tsi yog dye ncaj qha hauv textile? Direct zas xim , kuj hu ua Substantive Dye , ib chav kawm ntawm cov xim, dej-soluble compounds uas muaj affinity rau fiber ntau thiab raug coj mus ncaj qha, xws li benzidine derivatives. Direct dyes feem ntau pheej yig thiab siv tau yooj yim, thiab lawv tuaj yeem tsim cov xim ci.
Yog li ntawd, cov dyes ncaj qha siv rau dab tsi?
Direct dyes yog siv ntawm paj rwb, ntawv, tawv, ntaub plaub, silk thiab nylon. Lawv kuj yog siv raws li pH ntsuas thiab raws li cov kab mob lom. Chemicals Nature of Direct Dyes : Chemically lawv yog ntsev ntawm complex sulfonic acids.
Vim li cas dye ncaj qha thiaj li hu ua?
Direct Dyes : Direct dyes kuj yog hu ua tseem ceeb dyes vim lawv cov khoom zoo heev rau cov ntaub ntawv cellulosic xws li paj rwb thiab viscose rayon. Qhov no chav kawm ntawm dyes muab nws lub npe los ntawm nws cov khoom muaj ncaj qha affinity rau cellulosic fibers, thaum siv los ntawm aqueous tov.
Pom zoo:
Sociobiology yog dab tsi thiab dab tsi yog qhov kev thuam loj ntawm nws?
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