1 Kev Taw Qhia
Txij li thaum lub advent ntawm reactive dyes, sodium alginate (SA) yog lub ntsiab muab tshuaj txhuam rau reactive dye printing ntawm paj rwb fabrics.
Siv peb homcellulose ethersCMC, HEC thiab HECMC npaj nyob rau hauv Tshooj 3 raws li cov thawj muab tshuaj txhuam, lawv tau siv rau reactive dye printing raws.
paj. Cov khoom siv yooj yim thiab cov khoom luam tawm ntawm peb lub pastes tau sim thiab muab piv nrog SA, thiab peb cov fibers tau sim.
Printing zog ntawm vitamin ethers.
2 Kev sim ib feem
Test cov ntaub ntawv thiab tshuaj
Cov khoom siv raw thiab tshuaj siv hauv kev sim. Ntawm lawv, reactive dye printing fabrics tau desizing thiab refining, thiab lwm yam.
Ib tug series ntawm pre-kho ntshiab paj rwb dawb weave, ceev 60/10cm × 50/10cm, xov paj weaving 21tex × 21tex.
Kev npaj luam ntawv muab tshuaj txhuam thiab xim muab tshuaj txhuam
Kev npaj cov ntawv luam tawm
Rau plaub thawj pastes ntawm SA, CMC, HEC thiab HECMC, raws li qhov sib piv ntawm cov khoom sib txawv, nyob rau hauv stirring tej yam kev mob
Tom qab ntawd, maj mam ntxiv cov muab tshuaj txhuam rau hauv dej, txuas ntxiv stirring rau ib lub sij hawm ntawm lub sij hawm, kom txog rau thaum lub qub muab tshuaj txhuam yog uniform thiab pob tshab, nres stirring, thiab muab tso rau hauv lub qhov cub.
Hauv ib khob, cia sawv ntsug hmo ntuj.
Kev npaj cov ntawv luam tawm
Ua ntej dissolve urea thiab anti-dyeing ntsev S nrog ib tug me me dej, ces ntxiv reactive dyes yaj nyob rau hauv dej, tshav kub thiab do nyob rau hauv ib da dej sov.
Tom qab stirring rau ib lub sij hawm ntawm lub sij hawm, ntxiv cov lim dye cawv rau lub qub muab tshuaj txhuam thiab do tusyees. Ntxiv yaj mus txog thaum koj pib luam ntawv
Zoo sodium bicarbonate. Cov mis ntawm xim muab tshuaj yog: reactive dye 3%, thawj paste 80% (cov ntsiab lus khoom 3%), sodium bicarbonate 3%,
Anti-contamination ntsev S yog 2%, urea yog 5%, thiab thaum kawg dej ntxiv rau 100%.
txheej txheem luam ntawv
Paj rwb ntaub reactive dye printing txheej txheem: kev npaj ntawm luam ntawv paste → sib nqus bar luam ntawv (ntawm chav tsev kub thiab siab, luam ntawv 3 zaug) → ziab (105 ℃, 10min) → steaming (105 ± 2 ℃, 10min) → dej txias → kub Ntxuav nrog dej (80 ℃) → xab npum boiling (xws li xab npum flakes 3g / L,
100 ℃, 10min) → ntxuav dej kub (80 ℃) → ntxuav dej txias → ziab (60 ℃).
Kev ntsuas kev ua tau zoo ntawm thawj paste
Paste ntsuas ntsuas
Plaub thawj pastes ntawm SA, CMC, HEC thiab HECMC nrog cov khoom sib txawv tau npaj, thiab Brookfield DV-Ⅱ
Lub viscosity ntawm txhua qhov muab tshuaj txhuam nrog cov ntsiab lus sib txawv tau kuaj los ntawm viscometer, thiab qhov hloov pauv ntawm cov viscosity nrog cov concentration yog qhov muab tshuaj txhuam tus nqi ntawm cov muab tshuaj txhuam.
nkhaus.
Rheology thiab Printing Viscosity Index
Rheology: MCR301 rotational rheometer tau siv los ntsuas qhov viscosity (η) ntawm thawj muab tshuaj txhuam ntawm cov nqi sib txawv.
Qhov kev hloov nkhaus ntawm tus nqi shear yog qhov nkhaus rheological.
Printing viscosity index: Lub tshuab luam ntawv viscosity qhia tau los ntawm PVI, PVI = η60/η6, qhov twg η60 thiab η6 yog raws
Lub viscosity ntawm thawj paste ntsuas los ntawm Brookfield DV-II viscometer ntawm tib lub rotor ceev ntawm 60r / min thiab 6r / min.
kev ntsuas dej ruaj khov
Qhov hnyav 25g ntawm thawj muab tshuaj txhuam rau hauv 80mL beaker, thiab maj mam ntxiv 25mL dej distilled thaum nplawm kom sib tov.
Nws yog tov tusyees. Siv ib daim ntawv lim kom muaj nuj nqis nrog qhov ntev × dav ntawm 10cm × 1cm, thiab kos ib kawg ntawm daim ntawv lim nrog ib txoj kab teev, thiab tom qab ntawd ntxig cov cim kawg rau hauv qhov muab tshuaj txhuam, kom cov kab ntsuas sib npaug nrog cov tshuaj txhuam hniav, thiab lub sij hawm pib tom qab cov ntawv lim tau muab tso rau hauv, thiab nws raug kaw rau ntawm daim ntawv lim tom qab 30 feeb.
Qhov siab uas noo noo nce.
4 Chemical Compatibility Test
Rau reactive dye printing, sim compatibility ntawm thawj muab tshuaj txhuam thiab lwm yam dyes ntxiv nyob rau hauv lub luam ntawv paste,
Ntawd yog, kev sib raug zoo ntawm cov khoom qub qub thiab peb cov khoom (urea, sodium bicarbonate thiab anti-staining ntsev S), cov txheej txheem kuaj tshwj xeeb yog raws li hauv qab no:
(1) Rau qhov kev xeem ntawm cov ntaub ntawv viscosity ntawm thawj muab tshuaj txhuam, ntxiv 25mL ntawm distilled dej rau 50g ntawm thawj luam ntawv muab tshuaj txhuam, do tusyees, thiab ces ntsuas lub viscosity.
Tus nqi viscosity tau txais yog siv raws li kev siv viscosity.
(2) Txhawm rau kuaj cov viscosity ntawm cov khoom qub tom qab ntxiv ntau yam khoom xyaw (urea, sodium bicarbonate thiab anti-staining ntsev S), muab cov npaj 15%
Urea tov (loj feem), 3% anti-staining ntsev S tov (nplooj feem) thiab 6% sodium bicarbonate tov (suab feem)
25mL tau ntxiv rau 50g ntawm thawj muab tshuaj txhuam, nplawm tusyees thiab muab tso rau ib lub sij hawm ntawm lub sij hawm, thiab ces ntsuas lub viscosity ntawm thawj muab tshuaj txhuam. Thaum kawg, qhov viscosity yuav raug ntsuas
Cov txiaj ntsig viscosity tau muab piv nrog cov ntaub ntawv siv viscosity, thiab feem pua ntawm cov viscosity hloov pauv ntawm cov khoom qub qub ua ntej thiab tom qab ntxiv txhua cov xim thiab cov khoom siv tshuaj raug xam.
Kev Ntsuam Xyuas Kev Cia Siab
Khaws cov qub muab tshuaj txhuam rau hauv chav sov (25 ° C) nyob rau hauv ib txwm siab rau rau hnub, ntsuas viscosity ntawm thawj muab tshuaj txhuam txhua hnub nyob rau hauv tib yam kev mob, thiab xam cov viscosity ntawm thawj paste tom qab 6 hnub piv nrog cov viscosity ntsuas ntawm thawj hnub los ntawm formula 4-(1). Lub dispersion degree ntawm txhua tus thawj paste yog ntsuas los ntawm dispersion degree raws li qhov ntsuas
Cia ruaj khov, qhov me dua qhov tawg, qhov zoo dua qhov kev ruaj ntseg ntawm cov khoom qub qub.
Slipping ntsuas
Ua ntej ziab cov paj rwb ntaub yuav tsum tau luam tawm mus tas li, hnyav thiab sau nws li mA; tom qab ntawd qhuav cov paj rwb ntaub tom qab luam ntawv mus rau qhov hnyav tas li, hnyav thiab sau nws
yog mB; Thaum kawg, cov ntaub paj rwb luam tawm tom qab steaming, soaping thiab ntxuav yog qhuav kom qhov hnyav tas li, hnyav thiab sau cia li mC
Tes tes
Ua ntej, cov paj rwb ntaub ua ntej thiab tom qab luam ntawv yog kuaj raws li qhov yuav tsum tau ua, thiab tom qab ntawd tus phabrometer npuag style ntsuas yog siv los ntsuas qhov handiness ntawm cov ntaub.
Kev xav ntawm tes ntawm cov ntaub ua ntej thiab tom qab luam ntawv tau raug ntsuas los ntawm kev sib piv peb tes zoo li tus yam ntxwv ntawm smoothness, nruj thiab softness.
Xim ceev ceev ntawm cov ntaub ntawv luam tawm
(1) Xim ceev rau kev ntsuam xyuas
Kev ntsuam xyuas raws li GB / T 3920-2008 "Color ceev rau rubbing rau xim ceev ceev ntawm textiles".
(2) Xim ceev ceev rau kev ntxuav
Ntsuas raws li GB / T 3921.3-2008 "Xim nrawm rau soaping ntawm textiles xim ceev ceev kuaj".
Thawj muab tshuaj txhuam cov ntsiab lus /%
CMC
HEC
HEMCC
SA
Variation nkhaus ntawm viscosity ntawm plaub yam qub pastes nrog cov ntsiab lus khoom
yog sodium alginate (SA), carboxymethyl cellulose (CMC), hydroxyethyl cellulose (HEC) thiab
Viscosity curves ntawm plaub yam qub pastes ntawm hydroxyethyl carboxymethyl cellulose (HECMC) raws li kev ua haujlwm ntawm cov ntsiab lus khoom.
, lub viscosity ntawm plaub thawj pastes tau nce nrog kev nce ntawm cov khoom muaj zog, tab sis cov khoom sib xyaw ua ke ntawm plaub thawj pastes tsis zoo ib yam, cov uas SA
Cov cuab yeej pasting ntawm CMC thiab HECMC yog qhov zoo tshaj plaws, thiab cov cuab yeej pasting ntawm HEC yog qhov phem tshaj.
Lub rheological kev ua tau zoo nkhaus ntawm plaub thawj pastes raug ntsuas los ntawm MCR301 rotational rheometer.
- Viscosity nkhaus raws li kev ua haujlwm ntawm tus nqi shear. Lub viscosities ntawm plaub thawj pastes tag nrho nce nrog tus nqi shear.
nce thiab txo qis, SA, CMC, HEC thiab HECMC yog tag nrho cov kua pseudoplastic. Table 4.3 PVI qhov tseem ceeb ntawm ntau yam nyoos pastes
Raw paste hom SA CMC HEC HECMC
PVI tus nqi 0.813 0.526 0.621 0.726
Nws tuaj yeem pom los ntawm Table 4.3 tias luam ntawv viscosity Performance index ntawm SA thiab HECMC yog qhov loj dua thiab cov qauv viscosity tsawg dua, uas yog, cov luam ntawv thawj muab tshuaj txhuam
Nyob rau hauv qhov kev txiav txim ntawm qis shear quab yuam, qhov viscosity hloov pauv yog me me, thiab nws yog ib qho nyuaj rau ua tau raws li qhov yuav tsum tau ntawm rotary screen thiab flat screen printing; thaum HEC thiab CMC
Lub tshuab luam ntawv viscosity Performance index ntawm CMC tsuas yog 0.526, thiab nws cov qauv viscosity yog qhov loj, uas yog, cov ntawv luam tawm thawj zaug muaj lub zog qis dua.
Nyob rau hauv qhov kev txiav txim, qhov viscosity hloov pauv yog nruab nrab, uas tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm lub vijtsam teb thiab lub vijtsam tiaj tus, thiab tuaj yeem tsim nyog rau rotary screen luam ntawv nrog ntau dua mesh.
Yooj yim kom tau txais cov qauv meej thiab kab. Viscosity/mPa·s
Rheological nkhaus ntawm plaub 1% solids raw pastes
Raw paste hom SA CMC HEC HECMC
h/cm 0.33 0.36 0.41 0.39
Kev ntsuas dej tuav ntawm 1% SA, 1% CMC, 1% HEC thiab 1% HECMC thawj muab tshuaj.
Nws tau pom tias lub peev xwm tuav dej ntawm SA yog qhov zoo tshaj plaws, ua raws li CMC, thiab qhov phem dua los ntawm HECMC thiab HEC.
Chemical Compatibility Sib piv
Variation ntawm thawj paste viscosity ntawm SA, CMC, HEC thiab HECMC
Raw paste hom SA CMC HEC HECMC
Viscosity/mPa·s
Viscosity tom qab ntxiv urea / mPa s
Viscosity tom qab ntxiv los tiv thaiv staining ntsev S / mPa s
Viscosity tom qab ntxiv sodium bicarbonate / mPa s
Plaub lub ntsiab viscosities ntawm SA, CMC, HEC thiab HECMC sib txawv nrog peb lub ntsiab additives: urea, anti-staining ntsev S thiab
Cov kev hloov pauv ntawm qhov sib ntxiv ntawm sodium bicarbonate tau qhia hauv lub rooj. , qhov sib ntxiv ntawm peb lub ntsiab additives, mus rau thawj muab tshuaj txhuam
Tus nqi ntawm kev hloov hauv viscosity txawv heev. Ntawm lawv, qhov sib ntxiv ntawm urea tuaj yeem ua rau kom cov viscosity ntawm cov tshuaj qub qub los ntawm kwv yees li 5%, uas yuav yog.
Nws yog tshwm sim los ntawm hygroscopic thiab puffing nyhuv ntawm urea; thiab cov tshuaj tiv thaiv staining ntsev S kuj yuav ua rau me ntsis viscosity ntawm thawj muab tshuaj txhuam, tab sis nws muaj me ntsis cuam tshuam;
Qhov sib ntxiv ntawm sodium bicarbonate txo qhov viscosity ntawm thawj muab tshuaj, uas CMC thiab HEC txo qis, thiab viscosity ntawm HECMC / mPa·s
66
Qhov thib ob, kev sib raug zoo ntawm SA yog qhov zoo dua.
SA CMC HEC HECMC
-15
-10
-5
05
Urea
Anti-staining ntsev S
sodium bicarbonate
Compatibility ntawm SA, CMC, HEC thiab HECMC Tshuag pastes nrog peb cov tshuaj
Kev sib piv ntawm kev ruaj ntseg cia
Dispersion ntawm viscosity txhua hnub ntawm ntau yam nyoos pastes
Raw paste hom SA CMC HEC HECMC
Dispersion/% 8.68 8.15 8. 98 8.83
yog qhov dispersion degree ntawm SA, CMC, HEC thiab HECMC raws li niaj hnub viscosity ntawm plaub thawj pastes, dispersion
Qhov me dua tus nqi ntawm degree, qhov zoo dua qhov kev ruaj ntseg ntawm cov khoom qub qub. Nws tuaj yeem pom los ntawm lub rooj hais tias qhov ruaj khov ntawm CMC raw muab tshuaj yog zoo heev
Kev ruaj ntseg cia ntawm HEC thiab HECMC raw muab tshuaj yog qhov tsis zoo, tab sis qhov sib txawv tsis tseem ceeb.
Post lub sij hawm: Sep-29-2022