Cov khoom tseem ceeb ntawm cov khoom tsis yog - woven hnab yog polypropylene (PP), uas yog siv tshuaj fiber ntau. Raws li Baidu Encyclopedia, tsis yog - woven fabric (tseem hu ua nonwoven cloth) yog ib yam khoom ua los ntawm polypropylene thiab lwm yam chemical fibers, tsim los ntawm oriented los yog random fiber ntau npaj los tsim ib lub web qauv, thiab ces ntxiv dag zog rau mechanically los yog thermally.
Lub hnab khw tsis yog woven los ntawm warp thiab weft threads nyob rau hauv cov tsoos textiles, li no lub npe "non-woven." Dhau li ntawm cov tseem ceeb polypropylene (PP, kwv yees li 63%), fibers siv los tsim cov khoom tsis yog -woven fabrics kuj muaj xws li polyester (PET, kwv yees li 23%) thiab viscose fiber (kwv yees li 8%). Cov ntaub ntawv nyoos no txiav txim siab txog cov khoom tseem ceeb ntawm cov khoom tiav: PP tsis yog- ntaub npuag yog lub teeb yuag, ruaj, breathable, thiab pheej yig, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau feem ntau cov hnab ntim khoom hauv khw. PET tsis yog- ntaub npuag muaj cov qauv zoo nkauj dua thiab feem ntau siv rau hauv cov xwm txheej uas xav tau qib siab dua. Nyob rau hauv xyoo tas los no, kev siv bio-raws li cov ntaub ntawv xws li polylactic acid (PLA) kuj tau nce ntxiv, tau txais kev pom zoo vim nws qhov zoo ntawm ib puag ncig.
