Siv los ua tus neeg sawv cev sib txuas zoo rau cov kua nplaum tsiaj, thiab tuaj yeem ua rau kom muaj viscosity ntawm cov kua nplaum tsiaj. Nws kuj tseem siv los ua tus neeg sawv cev kho rau urea-formaldehyde adhesives. Lub curing ceev ntawm 20% aqueous tov yog sai dua.
1. Siv los ua daim ntawv sizing tus neeg sawv cev hauv kev lag luam ntawv los txhim kho cov dej tsis kam thiab impermeability ntawm daim ntawv;
2. Tom qab tau yaj hauv dej, cov khoom zoo thiab cov khoom colloidal hauv cov dej tuaj yeem coagulated rau hauv cov flocs loj, uas tuaj yeem raug tshem tawm ntawm cov dej, yog li nws yog siv los ua coagulant rau dej thiab dej khib nyiab;
3. Siv los ua turbid dej purifier, kuj siv los ua precipitant, fixative, muab tub lim, thiab lwm yam. Siv los ua raw khoom rau tshuaj pleev ib ce antiperspirant (astringent) hauv tshuaj pleev ib ce;
4. Nyob rau hauv kev lag luam tiv thaiv hluav taws, nws tsim ib tug ua npuas ncauj extinguishing tus neeg sawv cev nrog baking soda thiab foaming agent;
5. Analytical reagents, mordants, tanning agents, grease decolorants, ntoo preservatives;
6. Stabilizer rau albumin pasteurization (xws li kua los yog khov tag nrho cov qe, dawb los yog qe qe);
7. Nws tuaj yeem siv los ua cov khoom siv raw rau kev tsim cov gemstones, qib siab ammonium alum, thiab lwm yam aluminates;
8. Hauv kev lag luam roj, nws yog siv los ua cov dej nag hauv kev tsim cov chrome daj thiab lub pas dej dyes, thiab tib lub sij hawm nws plays lub luag hauj lwm ntawm kev kho thiab sau.
