Lub hnab tuj yog cov khoom ntim yas zoo tagnrho hauv kev lag luam thauj khoom thauj. Hom ntim no yog cov cuab yeej ntim khoom ua los ntawm polyester fibers xws li polypropylene thiab high-pressure polyethylene los ntawm textile ntau lawm thiab ua. Nws yog ib qho muag muag khoom ntim khoom thauj. Nws yog dav siv nyob rau hauv lub ntim ntawm ntau yam hmoov, granular thiab me me khoom xws li tshuaj nroj tsuag, zoo nkauj tsev cov ntaub ntawv, plastics, minerals, thiab lwm yam. Ib qho ntawm cov khoom siv ntau zuj zus hauv kev lag luam khoom siv.
Daim ntawv thov ntawm lub hnab ntim tau yooj yim rau kev thauj mus los ntawm cov khoom lag luam feem ntau tawg lossis cov khoom siv hmoov, thiab hauv daim ntawv thov, nws muaj peev xwm zoo thiab loj heev, nws lub teeb yuag, yooj yim khiav lag luam hauv kev thauj khoom thiab tshem tawm cov khoom, thiab yuav tsis ua rau lub nra hnyav dhau. Qee cov khoom lag luam me me thiab tsis yooj yim rau kev thauj mus los, yog li txhawm rau daws qhov tsis yooj yim ntawm kev thauj mus los, lub hnab ntim khoom tshwm sim. Yog li ntawd, xws li cov khoom yog tsom, thiab cov nyhuv muaj peev xwm ua tau raws li cov kev cai dav dav ntawm kev siv.
Yog tias nws nqa thiab nqa, cov neeg ua haujlwm nyob ib puag ncig yuav tsum tsis txhob sawv hauv qab lub hnab uas tau nqa tawm hauv av. Vim tias cov khoom zoo li no thaum kawg woven nrog ntau cov ntsiab lus, yog tias nws tuaj yeem pab tsis tau, nws yog qhov txaus ntshai heev. . Thaum nqa, lub hnab yuav tsum nyob rau hauv lub xeev sib npaug thiab tsis tuaj yeem slanted. Tsis txhob sib tsoo nrog lwm yam khoom thaum nqa.