Hydroxyethyl Cellulose (HEC) yog cov khoom muaj nyob hauv cov xim dej. Nws yog ib qho thickener uas pab txhim kho cov viscosity thiab stability ntawm cov xim. Hauv kab lus no, peb yuav tham txog yuav ua li cas ua cov xim pleev xim dej nrog HEC.

1. Cov khoom xyaw Cov khoom xyaw uas koj yuav tsum tau ua cov xim pleev xim dej nrog HEC yog:

• HEC hmoov
• Dej
• Pigments
• Preservatives (yeem)
• Lwm yam additives (yeem)

2. Mixing HEC Powder Thawj kauj ruam yog sib tov HEC hmoov nrog dej. HEC feem ntau yog muag hauv daim ntawv hmoov, thiab nws yuav tsum tau tov nrog dej ua ntej nws tuaj yeem siv rau xim. Tus nqi ntawm HEC hmoov koj yuav tsum tau siv yog nyob ntawm qhov xav tau tuab thiab viscosity ntawm koj cov xim. Txoj cai dav dav yog siv 0.1-0.5% ntawm HEC raws li qhov hnyav tag nrho ntawm cov xim.

Txhawm rau sib tov HEC hmoov nrog dej, ua raws li cov kauj ruam no:

• Ntsuas qhov xav tau ntawm HEC hmoov thiab ntxiv rau hauv lub thawv.
• Maj mam ntxiv dej rau hauv lub thawv thaum nplawm qhov sib tov tsis tu ncua. Nws yog ib qho tseem ceeb uas yuav tsum tau ntxiv dej maj mam txhawm rau tiv thaiv clumping ntawm HEC hmoov.
• Txuas ntxiv mus kom txog thaum HEC hmoov tau yaj tag nrho hauv dej. Cov txheej txheem no tuaj yeem siv nyob qhov twg los ntawm 10 feeb mus rau ib teev, nyob ntawm seb HEC hmoov koj siv npaum li cas.

3. Ntxiv Pigments Thaum koj tau tov cov hmoov HEC nrog dej, nws yog lub sij hawm ntxiv cov pigments. Pigments yog cov xim uas muab cov xim rau nws cov xim. Koj tuaj yeem siv txhua hom xim uas koj xav tau, tab sis nws yog ib qho tseem ceeb uas yuav tsum tau siv cov xim zoo nkauj uas haum rau cov xim pleev xim dej.

Txhawm rau ntxiv pigments rau koj HEC sib tov, ua raws li cov kauj ruam no:

• Ntsuas cov xim uas xav tau thiab ntxiv rau HEC sib tov.
• Do cov sib tov tsis tu ncua kom txog thaum cov xim yog tag nrho dispersed nyob rau hauv HEC sib tov. Cov txheej txheem no tuaj yeem siv sijhawm li ob peb feeb.

4. Kho Viscosity Ntawm no, koj yuav tsum muaj cov xim tuab sib tov. Txawm li cas los xij, tej zaum koj yuav tau kho cov viscosity ntawm cov xim kom nws muaj dej ntau los yog tuab, nyob ntawm seb koj xav tau qhov sib xws. Koj tuaj yeem ua qhov no los ntawm kev ntxiv dej lossis ntau HEC hmoov.

Txhawm rau kho qhov viscosity ntawm koj cov xim, ua raws li cov kauj ruam no:

• Yog tias cov xim tuab dhau lawm, ntxiv cov dej me me rau hauv qhov sib tov thiab do hauv, ntxiv dej kom txog thaum koj tau mus txog qhov xav tau viscosity.
• Yog tias cov xim nyias nyias, ntxiv ib qho me me ntawm HEC hmoov rau qhov sib tov thiab do hauv, ntxiv HEC hmoov kom txog thaum koj tau mus txog qhov xav tau viscosity.

5. Ntxiv Preservatives thiab Lwm yam Additives Thaum kawg, koj tuaj yeem ntxiv cov tshuaj tua kab mob thiab lwm yam tshuaj ntxiv rau koj cov xim sib tov, yog tias xav tau. Cov tshuaj tua kab mob pab tiv thaiv kev loj hlob ntawm pwm thiab kab mob hauv cov xim, thaum lwm cov tshuaj ntxiv tuaj yeem txhim kho cov khoom ntawm cov xim, xws li nws qhov adhesion, gloss, los yog lub sij hawm ziab.

Txhawm rau ntxiv preservatives thiab lwm yam additives rau koj cov xim, ua raws li cov kauj ruam no:

• Ntsuas tawm qhov xav tau ntawm cov khoom khaws cia lossis cov khoom ntxiv thiab ntxiv rau cov xim sib tov.
• Do cov sib tov tsis tu ncua kom txog thaum lub preservative los yog additive yog tag nrho dispersed nyob rau hauv cov xim. Cov txheej txheem no tuaj yeem siv sijhawm li ob peb feeb.

6. Khaws Koj Cov Xim Thaum koj tau ua koj cov xim, koj tuaj yeem khaws cia rau hauv lub thawv nrog lub hau kaw ntom ntom. Nws yog ib qho tseem ceeb uas yuav tsum khaws koj cov xim rau hauv qhov chaw txias, qhuav thiab kom tsis txhob muaj tshav ntuj ncaj qha. Cov xim pleev xim rau dej nrog HEC feem ntau muaj lub neej txee ntawm li 6 lub hlis mus rau ib xyoos, nyob ntawm seb cov qauv tshwj xeeb thiab kev cia khoom.

Hauv kev xaus, ua cov xim pleev xim dej nrog Hydroxyethyl Cellulose yog cov txheej txheem yooj yim uas yuav tsum muaj ob peb cov khoom xyaw tseem ceeb thiab qee qhov kev paub txog kev sib xyaw. Los ntawm kev ua raws li cov kauj ruam uas tau teev tseg saum toj no, koj tuaj yeem tsim cov xim zoo nkauj, ruaj khov uas haum rau ntau yam kev siv, los ntawm cov phab ntsa sab hauv mus rau rooj tog thiab ntau dua.