Spandex yog ib tug heev elastic fiber, nrog ib tug me me ntawm spandex fiber thiab lwm yam los tsim ib tug tej yam scale. Cov fiber ntau yog sib xyaw, thiab cov ntaub qhwv elastic tuaj yeem siv rau cov ris tsho hauv qab nruj, tsho, khaub ncaws ncaws pob, denim, hnav ris tsho thiab lwm yam khaub ncaws, uas yog cov neeg siv khoom nyiam.
Muaj ob hom mos ntu hauv cov qauv spandex fiber ntau: polyester thiab polyether, uas tau muab faib ua polyester spandex thiab polyether spandex. Feem ntau, polyether spandex muaj qhov hloov pauv iav qis dua thiab elasticity zoo dua li polyester spandex.
Spandex tuaj yeem siv ncaj qha rau hauv daim ntawv ntawm cov paj rwb liab qab rau cov ntaub qhwv elastic, los yog cov ntaub npuag liab qab tuaj yeem ua tiav rau hauv qee yam ntawm cov xov paj elastic thiab tom qab ntawd siv los weave elastic fabrics. Ntawm lawv, muaj peb hom ntau tshaj plaws: spandex core spun yarn, spandex twisted xov thiab spandex npog xov paj.
Cov txheej txheem ua haujlwm ntawm peb cov xov paj elastic sib txawv, uas txiav txim siab tias lawv cov qauv fiber ntau sib txawv, uas yog qhov tseem ceeb cuam tshuam rau kev ua haujlwm ntawm cov xov paj. Spandex corespun yarn tuaj yeem spun los ntawm lub nplhaib spinning, vortex spinning, electrospinning thiab lwm txoj kev, thiab feem ntau siv yog lub nplhaib spinning. Spandex twisting xov, tseem hu ua stranded xov, yog ua tiav tom qab kev hloov kho los ntawm kev siv lub tshuab twisting. Spandex npog xov paj yog ua tiav ntawm cov cuab yeej tshwj xeeb nrog cov hollow core spindles, uas tau them rau hauv ib txheej thaum siv ib qho core spindle thiab ob txheej txheej thaum siv ob.
Spandex corespun yarn qauv yam ntxwv thiab kev soj ntsuam kev ua tau zoo
Spandex core-spun yarn yog cov xov paj spun nrog spandex xov paj raws li cov tub ntxhais thiab ib los yog ob peb yam tsis-elastic staple fibers. Cov xov paj tseem ceeb ntawm cov xov paj tseem ceeb yog nyob ib puag ncig los ntawm cov fibers sab nraud, uas yog nruj nreem khi thiab muaj qhov sib tw zoo ib yam li cov fibers sab nraud.
Nws muaj peb yam tseem ceeb: ua ntej, nws muaj kev xav zoo ib yam thiab zoo li cov fibers sab nrauv (paj rwb, ntaub plaub, polyester, paj rwb, thiab lwm yam), thiab cov sheath sab nrauv muaj li ntawm ntuj fibers muaj hygroscopicity zoo; Qhov thib ob, elasticity yog zoo; Qhov thib peb, qhov feem pua elastic tuaj yeem tswj tau qis dua 20%.
Piv nrog rau lwm cov xov paj, spandex corespun yarn muaj qhov tseem ceeb uas cov xov paj tseem ceeb tsis raug thaum cov xov paj nruj thiab ncab. Yog li ntawd, cov nyhuv dyeing yog qhov zoo, thiab nws yog ib qho tsim nyog los ua cov khoom ntawm ntau yam xim, nrog rau cov xim tsaus.
Piv nrog rau lwm hom stretch yarns, corespun yarns muaj kev sib piv qis zog. Raws li ib txwm muaj, lub zog ntawm ib lub xov paj tsuas yog sib npaug rau 80% ~ 90% ntawm tib lub ntsiab lus thaum lub fiber ntau yog xov paj ib leeg. Thawj qhov tawg ntawm cov core spun yarn yog cov txheej txheem fiber ntau, thiab lub zog tsim los ntawm cov txheej txheem fiber ntau yog lub zog ntawm cov core spun yarn. Spandex yarn yog lub zog qis thiab siab-elongation filament, uas tsis pab lub zog ntawm cov xov paj hauv cov xov paj core-spun, tab sis rhuav tshem lub zog tuav ntawm cov fibers. Yog li ntawd, qhov siab dua cov ntsiab lus spandex, qhov qis zog ntawm cov xov paj corespun.
Cov yam ntxwv ntawm cov qauv thiab kev soj ntsuam kev ua haujlwm ntawm spandex twisted xov
Spandex twisting xov yog ua los ntawm stretching elastic spandex yarn ntug kos duab ntug thiab ob inelastic yarns ua ke thiab twisted. Yog tias cov xov paj no tsis muaj mob, thaum ua kom qhov nro, qhov sib zog sib zog ntxiv rau tag nrho cov xov paj, kom cov xov paj txav mus rau ib qho chaw ruaj khov nrog ib leeg, thiab vim li ntawd, cov xov paj spandex nkag mus rau hauv cov xov paj, thiab lwm yam. inelastic yarn dhau los ua txheej txheej, kom muaj qhov sib xws thiab xav tau.
Cov xov paj zoo li no muaj qhov sib tw zoo ib yam li cov xov paj sab nraud, thiab nyob rau hauv lub xeev nro, cov xov paj spandex thiab lwm cov xov paj tsis muaj kev sib raug zoo ntawm cov hlua khi, tab sis kev sib raug zoo ntawm kev sib tw. Raws li qhov tshwm sim, cov xov paj spandex raug nthuav tawm hauv qhov nro. Vim tias cov xim ntawm cov xov paj spandex thiab lwm cov xov paj uas tsis yog-elastic tsis sib xws, nws yooj yim ua rau xim sib txawv, yog li nws tsis haum rau cov khoom tsaus.
Spandex elastic twisted yarn muaj qhov zoo hauv qab no: ua ntej, spandex xov paj tuaj yeem sib phim nrog ntau yam xov paj lossis filaments; Qhov thib ob, nws yog qhov tsim nyog rau cov khoom me me thiab ntau yam ntau lawm, thiab txawm tias lub tshuab twisting tuaj yeem ua tiav ntau yam thiab hom tib lub sijhawm; Thib peb, qhov elasticity tuaj yeem txiav txim siab raws li kev siv cov khoom; Plaub, nws tuaj yeem siv nrog tib cov xov paj sab nraud raws li cov ntaub, kom cov khoom zoo li cov ntaub ntawv raw, thiab tib lub xim tuaj yeem ua tiav tom qab dyeing.
Lub zog ntawm elastic twisted xov yog lub zog ntawm cov xov paj uas tsis yog-elastic uas sib phim nrog cov xov paj spandex. Yog li ntawd, lub zog yog siab dua li ntawm spandex core-spun yarn ntawm tib lub ntsiab lus.
Lub degree ntawm tuav ntawm spandex yarn thiab lwm yam tsis-elastic yarns nyob rau hauv elastic twisted yarn yog qis dua li ntawm spandex yarn thiab txheej fiber nyob rau hauv spandex core spun yarn, yog li lub elasticity ntawm twisted yarn yog siab dua li cov core spun yarn.
Kev tshuaj xyuas cov yam ntxwv ntawm cov qauv thiab cov khoom ntawm spandex npog xov paj
Cov xov paj npog tseem hu ua wrapped yarn, thiab ib qho ntawm qhov sib txawv tshaj plaws ntawm cov xov paj npog thiab lwm cov xov paj yog cov xov paj tseem ceeb twistlessness. Cov tub ntxhais sheath kev sib raug zoo ntawm spandex yarn thiab txheej txheej hauv cov xov paj npog yog pom tseeb, tab sis qhov kev tuav ntawm cov xov paj thiab txheej txheej yog qhov qis dua qhov nruab nrab ntawm cov xov paj spun thiab twisted xov paj, yog li nws elasticity siab dua li ntawm thawj. ob. Lub elongation tuaj yeem ncav cuag 200% (ob lub xov paj wrapping), thiab txog 50% elasticity tuaj yeem tau txais hauv cov ntaub ntawv siab.
Cov xov paj npog muaj qhov tshwm sim ntawm kev nthuav tawm cov tub ntxhais hauv lub xeev tensioned, yog li nws tsis haum rau cov khoom tsaus. Qhov kev xav ntawm cov xov paj npog yog qhov nyuaj dua li ntawm cov xov paj spun, thiab lub zog ntawm cov xov paj npog yog lub zog ntawm cov xov paj sab nrauv lossis cov xov paj, yog li lub zog siab dua li ntawm cov core spun yarn ntawm tib lub ntsiab lus.
Los ntawm kev ua cov txheej txheem ntawm cov xov paj npog, nws tuaj yeem pom tias cov xov paj npog yog xoob winding, thiab tus nqi winding feem ntau yog 60% ~ 95% raws li kev siv sib txawv. Qhov no yog qhov sib txawv ntawm cov core spun yarn thiab twisted thread, uas muaj kev cuam tshuam ntau dua rau cov txheej txheem kev sib tw.