Peb tabtom yuav khoom siv hnab yas nqa khoom, tabsis lawv maj mam tshem tawm ntawm lub khw muag khoom ua lag luam, nrog rau cov hnab ntim tsis tau hloov.
Nyob rau hauv lub era ntawm txiav npluav nyob dawb lub hnab, cov hnab ntim tsis-woven tau ua ib feem tseem ceeb ntawm peb lub neej. Lub ntsiab yog vim li cas lub hnab yas ua rau kev hem thawj rau qhov chaw yog tias lawv tuaj yeem tsis degrade ntev ntev. Cov hnab ntim tsis muaj zog los mus kov yeej qhov kev poob haujlwm no.
Raws li cov kws tshaj lij, cov hnab ntim ntau tshaj ntawm cov lag luam yog ua los ntawm polypropylene, thaum cov hnab yas yog ua los ntawm polyethylene. Txawm hais tias cov ntaub ntawv no muaj npe zoo sib xws, lawv muaj cov qauv tshuaj sib txawv kiag li. Polyethylene chemical molecular qauv nrog muaj zog stability, tsis tshua muaj nyuab nyuab rau degrade, yog li ntawd lub hnab yas hu 300 tawm mus kiag li degrade. Txawm hais tias polypropylene muaj ib qho qauv tsis ruaj tsis khov thiab molecular saw, lub hnab ntim tshuaj yuav ua rau tag nrho hauv 90 hnub. Tsis tas li ntawd, cov hnab ntim tsis yog siv tau ntau tshaj 10 lo lus, tab sis qhov chaw muaj paug ntawm thaj chaw tsuas yog 10% ntawm cov hnab yas.
Non-woven hnab li ib cov khoom tshiab, muaj peev xwm hloov tau lub hnab yas, nws zoo embodied nyob rau hauv:
1. Tsis muaj teeb meem, tsis ntim cov hnab thiab cov hnab yas, cov hnab ntim tsis muaj lub hnab ntim zoo dua qub
2. Yooj zawg yooj yim, lub hnab ntim tsis yog lub hnab ntim tsis yog lub khoob yog 3 mus rau 6 lub hlis yuav raug muab tshem tawm
3. Pheej yig, hnab ntim hnab tsis kim, tab sis kuj tseem siv tau ntau zaus, tus nqi yuav raug nqi tsawg
4. Yuav rov qab siv dua tshiab, tsis muaj lub hnab ntim, mos thiab ua pa
5. Cov hnab ntim uas tsis ntim kuj tuaj yeem sau tau ntau yam qauv, nws zoo li cov qauv zoo nkauj
