Lo lus nug seb daim ntawv puas yog a cov khoom siv nonwoven feem ntau tshwm sim hauv kev sib tham txog textiles, cov ntaub ntawv science, thiab cov ntawv thov kev lag luam. Los teb cov lus nug no kom tiav, Nws yog ib qho tseem ceeb kom nkag siab txog cov ntsiab lus thiab cov yam ntxwv ntawm cov ntawv thiab cov ntaub tsis yog ntaub, thiab tom qab ntawd muab piv rau lawv los txiav txim lawv qhov sib xws thiab qhov sib txawv.
Txhais thiab yam ntxwv ntawm daim ntawv
Daim ntawv yog nyias, cov khoom tiaj tus tsim los ntawm nias ua ke moist fibers, feem ntau cellulose pulp muab tau los ntawm ntoo, daim ntawv siv dua, los yog lwm yam ntaub ntawv fibrous, thiab ces qhuav lawv. Nws yog feem ntau siv rau kev sau ntawv, luam ntawv, ntim, thiab ntau yam ntawm lwm lub hom phiaj. Cov yam ntxwv tseem ceeb ntawm daim ntawv suav nrog nws qhov nyias nyias, yooj, thiab lub zog, uas tau ua tiav los ntawm kev ua tib zoo xaiv thiab ua cov fibers thiab ntxiv rau ntau yam tshuaj additives.
Txhais thiab yam ntxwv ntawm Nonwoven Fabrics
Nonwoven fabrics, ntawm qhov tod tes, yog cov ntaub ntawv textile ua los ntawm fibers, filaments, los yog threads uas yog sib koom ua ke los ntawm txoj kev uas tsis yog weaving, knitting, los yog crocheting. Cov txheej txheem kev sib txuas no tuaj yeem suav nrog kev sib koom ua ke (xws li rab koob punching lossis spunbonding), chemical bonding (siv cov nplaum los yog cov kuab tshuaj), thermal sib txuas (melting fibers ua ke), los yog kev sib xyaw ua ke ntawm cov txheej txheem no. Nonwovens yog tus cwj pwm los ntawm lawv cov qauv, uas tuaj yeem ua tau zoo ib yam lossis ntau yam, thiab lawv muaj peev xwm ua tau nyob rau hauv ntau yam thicknesses, hnyav, thiab textures.
Kev sib piv ntawm Ntawv thiab Nonwoven Fabrics
Thaum sib piv cov ntawv thiab nonwoven fabrics, ntau qhov sib txawv tseem ceeb tshwm sim:
- Txoj kev tsim khoom: Daim ntawv yog tsim los ntawm cov txheej txheem ntub dej uas cuam tshuam nrog kev ncua ntawm fibers hauv dej, ua raws li lawv cov deposition mus rau ib qho screen thiab tom qab nias thiab ziab. Nonwoven fabrics, txawm li cas los xij, tuaj yeem tsim tau siv ntau txoj hauv kev, suav nrog kev ua kom qhuav (xws li spunbonding lossis carding), ntub-ntws nrog cov txheej txheem sib txawv, los yog ob qho tib si ua ke.
- Fiber ntau hom thiab qhov chaw: Daim ntawv yog ib txwm ua los ntawm cellulose fibers muab los ntawm ntoo pulp, txawm tias cov ntawv siv dua tshiab thiab lwm cov ntaub ntawv fibrous kuj tseem siv tau. Nonwoven fabrics tuaj yeem tsim los ntawm ntau hom fiber ntau, suav nrog ntuj fibers (xws li paj rwb, ntaub plaub, los yog flax), hluavtaws fibers (xws li polyester, nylon, los yog polypropylene), thiab regenerated fibers (xws li rayon lossis viscose).
- End-Siv daim ntawv thov: Daim ntawv yog siv rau kev sau ntawv, luam ntawv, ntim, thiab kev siv zoo sib xws qhov twg nws thinness, yooj, thiab lub zog muaj txiaj ntsig. Nonwoven fabrics, txawm li cas los xij, muaj ntau yam kev siv dav dav, suav nrog kev lim, cov khoom kho mob thiab tu cev, automotive Cheebtsam, geotextiles, thiab ntau ntxiv.
- Cov qauv sib txawv: Thaum daim ntawv feem ntau nyias thiab tiaj tus nrog cov qauv sib xws, nonwoven fabrics tuaj yeem muaj ntau yam qauv thiab textures, nyob ntawm txoj kev tsim khoom thiab hom fiber ntau siv.
Xaus
Raws li cov kev sib piv saum toj no, nws tuaj yeem xaus tias daim ntawv tsis yog nonwoven ntaub. Txawm hais tias ob qho tib si cov ntaub ntawv yog tsim los ntawm fibers thiab muaj qee qhov zoo sib xws ntawm lawv qhov hnyav thiab hloov tau, lawv txawv heev hauv lawv txoj kev tsim khoom, fiber ntau hom thiab qhov chaw, kev siv kawg, thiab cov yam ntxwv ntawm cov qauv. Yog li ntawd, Nws yog ib qho tseem ceeb kom paub qhov txawv ntawm cov ntawv thiab cov ntaub tsis yog ntaub thaum xav txog lawv cov kev siv hauv ntau yam kev lag luam thiab cov neeg siv khoom.
