Vim li cas Dispersion Fastness Poor?

Vim li cas Dispersion Fastness Poor?

Disperse dyeing tsuas yog siv qhov kub thiab txias siab thaum dyeing polyester fibers.Txawm hais tias cov dye molecules disperse yog me me, nws tsis tuaj yeem lav tias tag nrho cov dye molecules nkag mus rau fiber ntau thaum dyeing.Qee cov dyes disperse yuav ua raws li cov fiber ntau, uas ua rau tsis zoo.Nws yog siv los rhuav tshem cov dye molecules uas tsis tau nkag mus rau hauv fiber ntau, txhim kho qhov ceev, thiab txhim kho qhov ntxoov ntxoo.

Disperse dyeing dyeing ntawm polyester fabrics, tshwj xeeb tshaj yog nyob rau hauv nruab nrab thiab tsaus xim, thiaj li yuav tag nrho tshem tawm floating xim thiab oligomers nyob rau hauv cov ntaub thiab txhim kho lub ceev ceev ntawm dyeing, nws yog feem ntau yuav tsum tau ua kom txo tu tom qab dyeing.

Blended npuag feem ntau yog hais txog cov xov paj uas ua los ntawm ob lossis ntau qhov sib xyaw ua ke, yog li cov ntaub no muaj qhov zoo ntawm ob lub ntsiab lus.Thiab los ntawm kev kho qhov sib piv, ntau yam ntxwv ntawm ib qho ntawm cov khoom tuaj yeem tau txais.

Blending feem ntau yog hais txog staple fiber blending, uas yog, ob fibers ntawm cov khoom sib txawv yog sib xyaw ua ke nyob rau hauv daim ntawv ntawm staple fibers.Piv txwv li: polyester-paj rwb blended ntaub, kuj feem ntau hu ua T / C, CVC.T / R, thiab lwm yam. Nws yog woven nrog ib tug blend ntawm polyester staple fiber thiab paj rwb fiber los yog cov neeg tsim fiber ntau.Nws qhov zoo yog: nws muaj cov tsos thiab zoo li ntawm tag nrho cov paj rwb ntaub, tsis muaj zog cov tshuaj fiber ntau luster thiab tshuaj fiber ntau xav ntawm polyester ntaub, thiab txhim kho qib.

Txhim kho xim ceev ceev, vim polyester ntaub yog xim ntawm qhov kub thiab txias, xim ceev ceev yog siab dua li cov paj rwb, yog li xim ceev ceev ntawm polyester-paj rwb blended ntaub kuj zoo dua piv nrog paj rwb.

Txawm li cas los xij, txhawm rau txhim kho cov xim ceev ntawm polyester-paj rwb fabrics, txo kev tu (hu ua R / C) yuav tsum tau ua, thiab tom qab kev kho mob tom qab kub kub dyeing thiab dispersion.Qhov zoo tshaj plaws xim ceev tuaj yeem ua tiav tom qab txo qis thiab tu.

Staple fiber blending tso cai rau cov yam ntxwv ntawm txhua qhov sib xyaw kom pom qhov sib npaug.Ib yam li ntawd, lwm yam kev sib xyaw ua ke kuj tuaj yeem ua rau lawv tus kheej zoo kom tau raws li qee qhov kev ua haujlwm lossis kev nplij siab lossis kev lag luam.Txawm li cas los xij, polyester-paj rwb blended fabrics yog dispersed thiab dyed ntawm kub.Nruab nrab, vim yog kev sib xyaw ntawm paj rwb lossis rayon fiber ntau, thiab qhov kub ntawm dyeing tsis tuaj yeem siab tshaj qhov kub ntawm polyester ntaub.Txawm li cas los xij, polyester-paj rwb los yog polyester-paj rwb rayon fabrics, nyob rau hauv lub stimulation ntawm muaj zog alkali los yog sodium hydroxide, yuav ua rau lub fiber ntau zog los yog tearing quab yuam poob drastic, thiab nws yog ib qho nyuaj rau ua tiav cov khoom zoo nyob rau hauv lub tom ntej links.

Thermal migration txheej txheem ntawm disperse dyes tuaj yeem piav qhia raws li hauv qab no:

1. Nyob rau hauv cov txheej txheem ntawm kub kub dyeing, cov qauv ntawm polyester fiber yuav xoob, disperse dye diffuses los ntawm lub nto ntawm lub fiber mus rau hauv lub fiber, thiab feem ntau yog ua nyob rau hauv lub polyester fiber los ntawm hydrogen daim ntawv cog lus, dipole attraction thiab van der. Waals zog.

2. Thaum cov dyed fiber ntau raug rau kev kho cua sov, lub thermal zog muab kev ua haujlwm siab zog rau polyester ntev saw, uas ua rau muaj kev vibration ntawm cov saw hlau molecular, thiab cov microstructure ntawm cov fiber ntau so, ua rau kev sib txuas ntawm ib co dye molecules thiab polyester ntev saw Weakened.Yog li ntawd, qee qhov dye molecules nrog ntau zog ua haujlwm thiab qib siab dua ntawm kev ywj pheej txav los ntawm sab hauv ntawm cov fiber ntau mus rau fiber ntau txheej txheej nrog cov qauv xoob, ua ke nrog cov fiber ntau los tsim cov txheej txheej xim.

3. Thaum lub sij hawm ntub dej ceev ceev.Nto dyes uas tsis ruaj khov, thiab cov dyes uas ua raws li cov paj rwb nplaum, yuav yooj yim tawm cov fiber ntau nkag mus rau hauv cov tshuaj thiab ua rau cov ntaub dawb;los yog ncaj qha ua raws li cov ntaub ntawv kuaj dawb los ntawm kev txhuam, yog li qhia qhov ntub nrawm thiab kev sib txhuam ntawm cov khoom dyed qhov ceev ceev txo.