Dab tsi yog yarn evenness?
Qhov sib npaug ntawm cov xov paj (tsis zoo linear ntom, sib npaug ntawm linear ntom)
Qhov sib npaug yog hais txog qhov kev hloov pauv ntawm cov thickness raws li qhov ntev ntawm cov xov paj, thiab tuaj yeem qhia tau tias qhov sib npaug ntawm cov xov paj. Qhov zoo ntawm textiles feem ntau nyob ntawm qhov sib npaug ntawm cov xov paj.
Cov xov paj sib npaug tau muab faib ua ntu ntu tsis sib xws, ntu nruab nrab tsis sib xws thiab ntu ntu ntev tsis sib xws. Lub caij nyoog ntev ntawm qhov tsis sib xws yog 1-10 lub sij hawm ntawm qhov ntev fiber ntau, thiab lub caij nyoog tsis sib xws hauv qab li 1m yog hu ua luv ntu tsis sib xws; Lub caij nyoog ntev ntawm qhov tsis sib xws yog 10-100 lub sij hawm ntawm qhov ntev fiber ntau, thiab txog li ob peb metres yog qhov tsis sib xws, uas yog hu ua ntu nruab nrab qhov tsis sib xws; Lub caij nyoog ntev ntawm qhov tsis sib xws yog 100-3000 lub sij hawm ntawm qhov ntev fiber ntau, thiab txog kaum ntawm meters yog qhov tsis sib xws, uas yog hu ua ntu ntev tsis sib xws.
Thaum weaving nrog luv luv yarn nrog siab unevenness, qhov tshwm sim ntawm ob peb coarse knots los yog cov ntsiab lus juxtaposing rau ntawm daim ntaub nto yog siab, thiab cov ntaub nto tsis xws luag yog ib qho yooj yim mus tshwm, uas muaj kev cuam tshuam zoo ntawm daim ntaub nto zoo; Cov ntaub nto woven los ntawm cov xov paj ntev thiab tsis sib xws yuav muaj cov kab txaij kab rov tav pom tseeb, uas tseem muaj kev cuam tshuam zoo rau cov ntaub nto; Hais txog hais lus, qhov tshwm sim ntawm qhov tsis xws luag ntawm daim ntaub nto yog me ntsis qis dua thaum weaving cov xov paj nrog cov ntu tsis sib xws, thiab nws muaj feem cuam tshuam rau daim ntaub dav. Thaum nws nthuav tawm qee qhov kev sib raug zoo, nws yuav tshwm sim pom qhov tsis xws luag ( kab kab los yog huab cua ). Tsis tas li ntawd, thaum lub sij hawm weaving txheej txheem, lub breakage tus nqi yuav nce thiab ntau lawm efficiency yuav txo. Yog li ntawd, xov paj evenness yog ib qho tseem ceeb Performance index los ntsuam xyuas cov xov paj zoo.
Cov laj thawj tseem ceeb ntawm cov xov paj tsis sib xws
(1) Qhov sib txawv ntawm cov khoom siv fiber ntau: qhov ntev, qhov zoo, cov qauv thiab cov duab ntawm ntuj fibers tsis sib xws, uas tsis yog ntawm cov hauv paus hniav nkaus xwb, tab sis kuj nyob rau ntau qhov sib txawv ntawm tib lub fibers; Lub heterogeneity ntawm cov tshuaj fiber ntau zoo dua li ntawm ntuj fiber ntau, tab sis tseem muaj qee qhov sib txawv ntawm cov khoom. Qhov tsis sib xws ntawm cov cuab yeej no lossis qhov sib txawv ntawm kev ua tau zoo ntawm cov fiber ntau yuav ua rau qhov tsis sib xws ntawm cov xov paj, uas yog tshwm sim los ntawm qhov nce ntawm CV tus nqi thiab qhov nce ntawm spectrum.
(2) Random kev npaj ntawm fibers: Yog hais tias cov fibers muaj qhov sib npaug ntawm qhov ntev thiab tuab, thiab cov fibers hauv cov xov paj yog ncaj thiab sib npaug, thiab cov khoom siv spinning thiab cov txheej txheem spinning tsis muaj teeb meem, cov xov paj tseem yuav tsis sib xws. Qhov no yog vim hais tias cov fiber suav nyob rau hauv seem sliver yog random faib, uas yog qhov qis tshaj txwv tsis sib xws, los yog hu ua txwv tsis sib xws, uas tuaj yeem suav los ntawm cov mis (2-11).
(3) Kev tsis sib xws los ntawm cov xwm txheej tsis sib xws: Qhov kev tsis sib xws no feem ntau tshwm sim los ntawm cov laj thawj tshwj xeeb, xws li ya paj adhesion, iav intarsion, lateral guide rod dislocation, kev ua haujlwm tsis zoo, cua txias tsis ua haujlwm, paj rwb khoom qab zib sticking roller, thiab lwm yam. lub sij hawm, nws yog manifested raws li qhov tshwm sim ntawm qhov tsis xws luag los yog cov tsos ntawm ntxiv-loj defects, thiab tej zaum nws kuj yog manifested raws li mechanical yoj.
