Ntoo pulp polyester thiab ntoo pulp PP (polypropylene) yog ob qho ntawm cov khoom siv feem ntau siv hauv cov khoom siv nonwovens, uas feem ntau siv rau ntau yam kev lag luam. Txawm hais tias ob qho tib si cov ntaub ntawv yuav zoo sib xws, muaj qhov sib txawv ntawm lawv.
Ua ntej, ntoo pulp polyester yog tsim los ntawm polyester fibers thiab ntoo pulp, uas yog tov ua ke nyob rau hauv ib tug txheej txheem hu ua airlaid. Txoj kev no tso cai rau cov fibers tau meshed ua ke yam tsis tas siv cov binders lossis tshuaj. Qhov no ua rau ntoo pulp polyester nonwovens ntau tus phooj ywg ib puag ncig, vim tias muaj cov tshuaj tsawg dua siv hauv cov txheej txheem tsim khoom.
Ntawm qhov tod tes, ntoo pulp PP yog tsim los ntawm polypropylene fibers thiab ntoo pulp, uas yog sib xyaw ua ke thiab ces spun rau hauv lub vev xaib siv cov txheej txheem hu ua spunbonding. Cov txheej txheem no tsim cov ntaub nonwoven uas muaj zog thiab muaj kev tiv thaiv zoo rau dej thiab lwm yam kua.
Nyob rau hauv cov nqe lus ntawm lawv cov khoom, ntoo pulp polyester nonwovens yog feem ntau siv nyob rau hauv daim ntawv thov uas yuav tsum tau ib tug high degree ntawm absorbency. Qhov no ua rau lawv zoo tagnrho rau siv hauv cov khoom xws li cov khoom siv tu cev, xws li cov ntaub so ntswg thiab cov pawm. Lawv kuj tau siv hauv kev lag luam kho mob rau tej yam xws li cov ris tsho phais thiab lub ntsej muag lub ntsej muag.
Lub caij no, ntoo pulp PP nonwovens feem ntau siv rau hauv cov ntawv thov uas yuav tsum tau ua kom ntev thiab ua haujlwm rau dej thiab lwm yam kua. Lawv feem ntau siv rau hauv cov khoom xws li geotextiles, cov ntaub ntawv vov tsev, thiab tsheb sab hauv.
Hauv kev xaus, ob qho tib si ntoo pulp polyester thiab ntoo pulp PP nonwovens muaj lawv tus kheej cov khoom thiab siv. Thaum ntoo pulp polyester yog ntau absorbent, ntoo pulp PP yog ntau ruaj thiab resistant rau kua. Los ntawm kev nkag siab txog qhov sib txawv no, cov tuam ntxhab tuaj yeem xaiv cov khoom siv tsis yog tsim nyog rau lawv cov kev xav tau tshwj xeeb.