Tsib yam tseem ceeb ntawm disperse dyes:

Lifting zog, npog lub zog, dispersion stability, PH rhiab heev, compatibility.

1. Lub zog nqa
1. Lub ntsiab lus ntawm kev nqa lub zog:
Lifting zog yog ib qho ntawm cov khoom tseem ceeb ntawm disperse dyes. Cov yam ntxwv no qhia tau hais tias thaum txhua cov xim yog siv rau dyeing los yog luam ntawv, tus nqi ntawm cov xim yog maj mam nce, thiab cov degree ntawm cov xim tob ntawm cov ntaub (los yog xov paj) nce raws li. Rau dyes nrog zoo lifting zog, qhov tob ntawm dyeing nce raws li qhov kev faib ua feem ntawm cov dyeing, qhia tias muaj zoo sib sib zog nqus dyeing; dyes nrog lub zog nqa tsis zoo muaj qhov tsis zoo sib sib zog nqus dyeing. Thaum ncav cuag ib qho tob, cov xim yuav tsis sib sib zog nqus ntxiv lawm vim tias cov xim ntau ntxiv.
2. Cov nyhuv ntawm nqa lub zog ntawm dyeing:
Lub zog nqa ntawm disperse dyes sib txawv heev ntawm cov hom tshwj xeeb. Dyes nrog lub zog nqa siab yuav tsum tau siv rau cov xim sib sib zog nqus thiab tuab, thiab cov dyes nrog qis nqa tus nqi tuaj yeem siv rau lub teeb ci thiab lub teeb xim. Tsuas yog los ntawm kev paub cov yam ntxwv ntawm cov dyes thiab siv lawv tsim nyog tuaj yeem ua tiav cov txiaj ntsig ntawm kev txuag dyes thiab txo cov nqi tuaj yeem ua tiav.
3. Lifting xeem:
Cov dye lifting zog ntawm qhov kub thiab txias siab dyeing yog qhia nyob rau hauv %. Raws li cov txheej txheem dyeing tau teev tseg, tus nqi qis ntawm cov dyeing hauv cov tshuaj dye yog ntsuas, lossis cov xim qhov tob ntawm cov qauv dyed yog ntsuas ncaj qha. Qhov tob dyeing ntawm txhua dyeing yuav muab faib ua rau theem raws li 1, 2, 3.5, 5, 7.5, 10% (OMF), thiab dyeing yog nqa tawm nyob rau hauv ib tug me me qauv tshuab ntawm kub thiab siab. Cov dye lifting zog ntawm kub yaj pad dyeing los yog textile printing yog qhia nyob rau hauv g / L.
Nyob rau hauv cov nqe lus ntawm kev tsim khoom tiag tiag, lub zog nqa ntawm cov xim yog qhov kev hloov pauv hauv cov ntsiab lus ntawm cov tshuaj zas xim, uas yog, kev hloov pauv ntawm qhov ntxoov ntxoo ntawm cov khoom tiav nrog rau cov khoom dyed. Qhov kev hloov no tuaj yeem tsis tsuas yog tsis tuaj yeem pom, tab sis kuj tuaj yeem ntsuas qhov tseeb ntawm cov xim qhov tob nrog kev pab ntawm ib qho cuab yeej, thiab tom qab ntawd xam cov lifting force curve ntawm disperse dye los ntawm cov xim qhov tob.
2. Npog lub zog

1. Lub zog npog ntawm cov xim yog dab tsi?

Ib yam li kev zais ntawm cov paj rwb tuag los ntawm cov tshuaj zawv plaub hau los yog vat dyes thaum dyeing paj rwb, qhov zais ntawm disperse dyes ntawm cov polyester tsis zoo yog hu ua kev pab ntawm no. Polyester (los yog acetate fiber) filament fabrics, nrog rau knitwear, feem ntau muaj xim shading tom qab lawv yog daim-dyed nrog disperse dyes. Muaj ntau qhov laj thawj rau cov xim profile, qee qhov yog weaving tsis xws luag, thiab qee qhov tshwm sim tom qab dyeing vim qhov sib txawv ntawm fiber ntau.

2. Kev ntsuam xyuas:

Xaiv cov polyester filament tsis zoo, dyeing nrog disperse dyes ntawm cov xim sib txawv thiab ntau yam nyob rau hauv tib dyeing tej yam kev mob, sib txawv yuav tshwm sim. Qee qib xim yog qhov hnyav thiab qee qhov tsis pom tseeb, uas qhia tau hais tias cov dyes disperse muaj cov xim sib txawv. Qib ntawm kev pov hwm. Raws li tus qauv grey, qib 1 nrog cov xim sib txawv loj thiab qib 5 yam tsis muaj xim sib txawv.

Lub zog npog ntawm disperse dyes ntawm cov ntaub ntawv xim yog txiav txim siab los ntawm cov qauv dye nws tus kheej. Feem ntau cov dyes nrog siab pib dyeing tus nqi, qeeb diffusion thiab kev tsiv teb tsaws tsis zoo muaj qhov tsis zoo ntawm cov ntaub ntawv xim. Npog lub hwj chim kuj muaj feem xyuam rau sublimation ceev ceev.

3. Kev tshuaj xyuas dyeing kev ua tau zoo ntawm polyester filament:

Ntawm qhov tsis sib xws, disperse dyes nrog lub zog npog tsis zoo tuaj yeem siv los txheeb xyuas qhov zoo ntawm polyester fibers. Cov txheej txheem tsim fiber ntau tsis ruaj khov, suav nrog kev hloov pauv hauv kev tsim qauv thiab kev teeb tsa, yuav ua rau tsis sib xws hauv fiber ntau affinity. Dyeability zoo tshuaj xyuas ntawm polyester filaments feem ntau yog ua nrog cov neeg pluag npog dye Eastman Fast Blue GLF (CI Disperse Blue 27), dyeing qhov tob 1%, boiling ntawm 95 ~ 100 ℃ rau 30 feeb, ntxuav thiab ziab raws li qib xim Qhov sib txawv ntawm qhov ntsuas ntsuas.

4. Kev tiv thaiv hauv kev tsim khoom:

Txhawm rau tiv thaiv qhov tshwm sim ntawm cov xim shading hauv kev tsim khoom tiag tiag, thawj kauj ruam yog txhawm rau ntxiv dag zog rau kev tswj hwm qhov zoo ntawm polyester fiber raw cov ntaub ntawv. Lub tshuab weaving yuav tsum siv cov xov paj ntau dhau ua ntej hloov cov khoom. Rau cov khoom siv tsis zoo uas paub zoo, disperse dyes nrog lub zog npog zoo tuaj yeem xaiv kom tsis txhob muaj kev puas tsuaj loj ntawm cov khoom tiav.

3. Dispersion stability

1. Dispersion stability ntawm disperse dyes:

Disperse dyes yog poured rau hauv dej thiab ces dispersed mus rau hauv zoo hais. Qhov loj me me faib tau nthuav dav raws li cov qauv binomial, nrog tus nqi nruab nrab ntawm 0.5 txog 1 micron. Qhov loj me me ntawm cov khoom lag luam zoo dyes yog ze heev, thiab muaj qhov feem pua ​​​​siab, uas tuaj yeem qhia tau los ntawm particle loj faib nkhaus. Dyes nrog tsis zoo particle loj faib muaj coarse hais ntawm txawv qhov ntau thiab tsawg thiab tsis zoo dispersion stability. Yog hais tias lub particle loj heev tshaj qhov nruab nrab ntau, recrystallization ntawm me me hais tej zaum yuav tshwm sim. Vim qhov nce ntawm cov khoom loj recrystallized, cov dyes yog precipitated thiab tso rau ntawm phab ntsa ntawm lub tshuab dyeing los yog ntawm fibers.

Txhawm rau ua kom cov xim zoo ntawm cov xim rau hauv cov dej ruaj khov dispersion, yuav tsum muaj qhov txaus siab ntawm cov xim kub npau npau dispersant hauv dej. Cov xim zas xim yog ib puag ncig los ntawm cov dispersant, uas tiv thaiv cov dyes los ntawm kev sib ze, tiv thaiv kev sib koom ua ke lossis agglomeration. Tus nqi repulsion ntawm anion pab stabilize lub dispersion. Feem ntau siv anionic dispersants muaj xws li ntuj lignosulfonates los yog hluavtaws naphthalene sulfonic acid dispersants: kuj tseem muaj cov tsis-ionic dispersants, feem ntau yog alkylphenol polyoxyethylene derivatives, uas tshwj xeeb yog siv rau hluavtaws paste luam ntawv.

2. Yam cuam tshuam rau kev ruaj ntseg ntawm disperse dyes:

Cov impurities hauv cov xim qub tuaj yeem cuam tshuam rau lub xeev dispersion. Kev hloov ntawm dye crystal kuj yog ib qho tseem ceeb. Qee lub xeev siv lead ua yooj yim tawg, thaum lwm tus tsis yooj yim. Thaum lub sij hawm dyeing txheej txheem, lub crystal lub xeev ntawm cov dye tej zaum hloov.

Thaum cov dye yog dispersed nyob rau hauv cov aqueous tov, vim muaj kev cuam tshuam ntawm lwm yam tseem ceeb, lub ruaj khov lub xeev ntawm dispersion yog puas, uas yuav ua rau lub phenomenon ntawm dye crystal nce, particle aggregation thiab flocculation.

Qhov sib txawv ntawm kev sib sau ua ke thiab flocculation yog qhov qub tuaj yeem ploj mus dua, thim rov qab, thiab tuaj yeem tawg rov qab los ntawm kev nplawm, thaum lub flocculated dye yog ib qho kev sib cais uas tsis tuaj yeem rov qab los rau kev ruaj ntseg. Cov txiaj ntsig tshwm sim los ntawm flocculation ntawm dye particles muaj xws li: xim me ntsis, xim qeeb dua, qis xim tawm los, tsis sib xws dyeing, thiab staining tank fouling.

Cov yam ntxwv uas ua rau tsis muaj kev ruaj ntseg ntawm cov dej cawv dispersion yog kwv yees li hauv qab no: cov xim tsis zoo, xim xim dej cawv kub, lub sij hawm ntev dhau, lub twj tso kua mis ceev dhau, tsis muaj pH tus nqi, cov khoom siv tsis zoo, thiab cov khoom qias neeg.

3. Kev ntsuam xyuas ntawm dispersion stability:

A. Lim ntawv txoj kev:
Nrog 10 g / L disperse dye tov, ntxiv acetic acid los kho tus nqi pH. Noj 500 ml thiab lim nrog # 2 lim ntawv ntawm lub plooj (porcelain funnel) los soj ntsuam cov particle fineness. Noj lwm 400 ml nyob rau hauv ib tug kub thiab siab siab dyeing tshuab rau ib tug dawb paug kuaj, kub rau 130 ° C, cia nws sov rau 1 teev, txias nws, thiab lim nws nrog lim ntawv los sib piv cov kev hloov nyob rau hauv dye particle fineness. . Tom qab cov dyeing cawv rhuab ntawm qhov kub thiab txias yog lim, tsis muaj xim me ntsis ntawm daim ntawv, qhia tau hais tias cov dispersion stability yog zoo.

B. Xim tsiaj txoj kev:
Dye concentration 2.5% (qhov hnyav rau polyester), da dej piv 1:30, ntxiv 1 ml ntawm 10% ammonium sulfate, kho pH 5 nrog 1% acetic acid, noj 10 grams ntawm polyester knitted ntaub, dov rau ntawm phab ntsa ntxeem tau, thiab circulate sab hauv thiab sab nraum cov tshuaj zas xim Nyob rau hauv high-temperature thiab high-pressure dyeing me me qauv qauv, qhov kub yog nce mus rau 130 ° C ntawm 80 ° C, khaws cia rau 10 feeb, txias rau 100 ° C, ntxuav thiab qhuav nyob rau hauv dej, thiab saib seb puas muaj dye condensed xim me ntsis ntawm cov ntaub.

Plaub, pH rhiab heev

1. Dab tsi yog pH rhiab heev?

Muaj ntau ntau yam ntawm disperse dyes, dav chromatograms, thiab sib txawv rhiab heev rau pH. Cov kev daws teeb meem dyeing nrog cov pH sib txawv feem ntau ua rau muaj qhov sib txawv ntawm cov xim dyeing, cuam tshuam rau xim qhov tob, thiab tseem ua rau muaj kev hloov xim loj. Nyob rau hauv ib tug tsis muaj zog acidic nruab nrab (pH4.5 ~ 5.5), disperse dyes nyob rau hauv lub feem ntau ruaj khov.

Cov pH qhov tseem ceeb ntawm kev lag luam dye daws tsis zoo ib yam, qee qhov nruab nrab, thiab qee qhov yog me ntsis alkaline. Ua ntej dyeing, kho kom haum rau pH nrog acetic acid. Thaum lub sij hawm dyeing txheej txheem, qee zaum tus nqi pH ntawm cov tshuaj dyeing yuav maj mam nce. Yog tias tsim nyog, formic acid thiab ammonium sulfate tuaj yeem muab ntxiv kom cov tshuaj pleev xim rau hauv lub xeev tsis muaj zog acid.

2. Kev cuam tshuam ntawm dye qauv ntawm pH rhiab heev:

Qee cov dyes disperse nrog azo qauv yog rhiab heev rau alkali thiab tsis resistant rau txo. Feem ntau ntawm cov dyes disperse nrog ester pawg, cyano pawg lossis amide pawg yuav raug cuam tshuam los ntawm alkaline hydrolysis, uas yuav cuam tshuam rau qhov ntxoov ntxoo ib txwm. Qee hom tuaj yeem dyed nyob rau hauv tib lub da dej nrog dyes ncaj qha los yog pad dyed nyob rau hauv tib da dej nrog reactive dyes txawm tias lawv yog dyed nyob rau hauv kub nyob rau hauv nruab nrab los yog tsis muaj zog alkaline tej yam kev mob yam tsis muaj xim hloov.

Thaum luam ntawv cov xim yuav tsum tau siv cov dyes disperse thiab reactive dyes los luam tawm ntawm tib qhov loj, tsuas yog alkali-ruaj khov dyes tuaj yeem siv kom tsis txhob muaj kev cuam tshuam ntawm ci dej qab zib lossis dej qab zib tshauv ntawm qhov ntxoov ntxoo. Ua tib zoo saib xyuas cov xim sib xws. Nws yog ib qho tsim nyog yuav tsum xeem dhau qhov kev ntsuam xyuas ua ntej hloov cov xim ntau yam, thiab nrhiav seb qhov ntau ntawm pH stability ntawm cov dye.
5. Kev sib haum xeeb

1. Lub ntsiab lus ntawm compatibility:

Hauv kev tsim cov dyeing ntau, txhawm rau kom tau txais cov khoom tsim tau zoo, nws feem ntau yuav tsum tau ua kom cov khoom dyeing ntawm peb hom xim dyes siv zoo ib yam los xyuas kom meej tias cov xim sib txawv zoo ib yam ua ntej thiab tom qab batch. Yuav ua li cas tswj cov xim sib txawv ntawm batch ntawm dyed tiav cov khoom nyob rau hauv qhov kev tso cai ntawm qhov zoo? Qhov no yog tib lo lus nug uas cuam tshuam nrog cov xim sib txuam ntawm cov tshuaj dyeing, uas yog hu ua dye compatibility (tseem hu ua dyeing compatibility). Lub compatibility ntawm disperse dyes kuj muaj feem xyuam rau qhov tob ntawm dyeing.

Cov dyes disperse siv rau dyeing ntawm cellulose acetate feem ntau yuav tsum tau xim ntawm ze li ntawm 80 ° C. Cov xim kub ntawm cov dyes yog siab dhau lossis qis dhau, uas tsis tsim nyog rau xim sib xws.

2. Compatibility xeem:

Thaum polyester yog dyed ntawm kub thiab siab siab, dyeing yam ntxwv ntawm disperse dyes feem ntau hloov vim muaj kev koom ua ke ntawm lwm dye. Lub hauv paus ntsiab lus tseem ceeb yog xaiv cov dyes uas zoo sib xws tseem ceeb dyeing kub rau xim txuam. Txhawm rau tshawb xyuas qhov sib xyaw ntawm cov dyestuffs, cov qauv me me ntawm cov dyeing tuaj yeem ua tau raws li cov txheej txheem zoo ib yam li cov khoom siv dyeing ntau lawm, thiab cov txheej txheem tseem ceeb xws li cov concentration ntawm daim ntawv qhia, qhov kub thiab txias ntawm cov tshuaj dyeing thiab dyeing. Lub sijhawm hloov pauv los sib piv cov xim thiab lub teeb sib xws ntawm cov qauv ntaub dyed. , Muab cov dyes nrog zoo dyeing compatibility rau hauv ib qeb.

3. Yuav ua li cas xaiv qhov sib haum ntawm dyes tsim nyog?

Thaum polyester-paj rwb blended fabrics yog dyed nyob rau hauv kub yaj, cov xim txuam dyes yuav tsum muaj tib yam khoom raws li cov monochromatic dyes. Lub melting kub thiab lub sij hawm yuav tsum tau sib xws nrog kho cov yam ntxwv ntawm cov dyeing kom ntseeg tau lub siab tshaj plaws xim yield. Txhua xim xim dye muaj qhov tshwj xeeb kub-melt fixation nkhaus, uas tuaj yeem siv los ua lub hauv paus rau kev xaiv ua ntej ntawm cov xim sib xws. High-temperature disperse dyes feem ntau tsis tuaj yeem sib xws nrog cov xim uas tsis tshua muaj kub, vim tias lawv yuav tsum muaj qhov sib txawv melting kub. Cov xim kub nruab nrab tuaj yeem tsis tsuas yog phim cov xim nrog kub dyes, tab sis kuj muaj kev sib raug zoo nrog cov xim tsis tshua muaj kub. Kev sib xyaw xim tsim nyog yuav tsum xav txog qhov sib xws ntawm cov khoom ntawm dyes thiab xim ceev ceev. Qhov tshwm sim ntawm cov xim sib txawv yog qhov ntxoov ntxoo tsis ruaj khov thiab cov xim rov ua dua ntawm cov khoom tsis zoo.

Nws yog feem ntau ntseeg tias cov duab ntawm cov kub-kua kho nkhaus ntawm cov dyes yog tib yam los yog zoo sib xws, thiab tus naj npawb ntawm monochromatic diffusion txheej ntawm polyester zaj duab xis kuj yog tib yam. Thaum ob dyes yog dyed ua ke, cov xim lub teeb nyob rau hauv txhua diffusion txheej tseem tsis hloov, qhia tau hais tias ob lub dyes muaj kev sib raug zoo nrog ib leeg nyob rau hauv cov xim txuam; Ntawm qhov tsis sib xws, cov duab ntawm qhov kub-melt fixation nkhaus ntawm cov xim yog txawv (piv txwv li, ib qho nkhaus nce nrog qhov nce ntawm qhov kub thiab txias, thiab lwm qhov nkhaus txo qis nrog qhov nce ntawm qhov kub), cov txheej txheem monochromatic diffusion ntawm polyester zaj duab xis Thaum ob lub dyes nrog cov lej sib txawv yog dyed ua ke, qhov ntxoov ntxoo nyob rau hauv diffusion txheej sib txawv, yog li nws tsis haum rau ib leeg kom phim xim, tab sis tib lub xim tsis raug rau qhov kev txwv no. Siv lub txiv ntseej: Disperse tsaus xiav HGL thiab tawg liab 3B los yog tawg daj RGFL muaj qhov sib txawv ntawm cov kub-kua fixation nkhaus, thiab tus naj npawb ntawm cov khaubncaws sab nraud povtseg ntawm cov yeeb yaj kiab polyester sib txawv heev, thiab lawv tsis tuaj yeem phim xim. Txij li Disperse Liab M-BL thiab Disperse Liab 3B muaj cov xim zoo sib xws, lawv tseem tuaj yeem siv rau hauv cov xim sib xws txawm tias lawv cov khoom kub-kub tsis sib xws.