Kuv ntseeg tias ntau tus phooj ywg tsis paub ntau txog PE / PP ob pawg spunbond ntaub. PE / PP ob pawg spunbond npuag yog ua los ntawm PE polyethylene thiab PP polypropylene los ntawm txoj kev spunbond thiab muaj ob chav tawv nqaij core qauv. Vim tias nws txawv ntawm cov tsoos PP Spunbond npuag thiab kub-cua ntaub, PE / PP ob pawg spunbond npuag muaj cov yam ntxwv ntawm kev xav, du kov, zoo thermal bonding, siab tensile zog, kev nyab xeeb, tsis muaj ntxiv thiab tsis muaj stimulation!
Tam sim no kev paub txog kev nyab xeeb ntawm tag nrho cov neeg tau txhim kho, thiab cov neeg siv khoom tau muab cov kev xav tau siab dua rau kev nyab xeeb thaum yuav cov ntaub qhwv. Tom qab ntawd hauv kev tsim khoom tiag tiag thiab muag cov ntaub qhwv, nws xav tau kev nyab xeeb zoo dua ntawm cov ntaub tsis-woven.
Peb txhua tus paub tias txhawm rau kom ua tiav qhov muag zoo dua hauv PP spunbonded nonwoven fabrics, yuav tsum tau ntxiv ntau yam khoom ntxiv. Txawm li cas los xij, PE / PP ob-tivthaiv spunbond npuag tuaj yeem ua tiav kev sib khi zoo dua thiab muag muag yam tsis muaj qhov sib ntxiv thiab hloov kho.
PE / PP bicomponent fiber ntau yog cov txheej txheem ntawm daim tawv nqaij. Cov khoom siv tseem ceeb yog polypropylene (PP) (kwv yees li 165 degree), thiab cov khoom siv ntawm daim tawv nqaij yog polyethylene (PE) (kwv yees li 130 degree). Thaum kub dov thiab melting, qhov kub qis yog siv, txheej txheej txheej melts thiab adheres, thiab cov khoom ntawm cov tub ntxhais txheej tseem tsis hloov. Thaum sib txuas nrog cov nplaum, cov nyhuv tsis ua kom puas viscosity ntawm cov nplaum, thiab nws tuaj yeem tiv thaiv kev sib xyaw delamination thiab roj hmab creep. Tsis tas yuav ntxiv softener, tus neeg sawv cev du, elastomer thiab lwm yam khoom ntxiv.
Cov yam ntxwv ntawm tsis muaj tshuaj ntxiv hauv cov txheej txheem tsim khoom ntawm PE / PP ob lub ntsiab lus spunbond npuag tsuas yog ua tau raws li kev nyab xeeb ntawm cov ntaub qhwv. Thaum lub sij hawm cia cov ntaub qhwv, tsis muaj additives yog precipitated, uas yuav tsis cuam tshuam lub adhesion ntawm kub yaj nplaum.
