Dab tsi yog twisting?
Nrog rau kev zam ntawm cov xov monofilament, tag nrho cov xov siv rau suturing muaj qee qhov kev sib tw siv rau lawv. Feem ntau cov xov yog ob lossis peb txoj hlua (cov lus qhia rau cov hlua yog cov hlua) twisted ua ke los tsim cov khoom siv zaum kawg. Yog hais tias ib tug xov tooj yog sau npe # 50/2 los yog # 50/3, tus xov tooj tom qab lub slash qhia tus naj npawb ntawm cov khaubncaws sab nraud povtseg los yog strands uas yog twisted ua ke los ua qhov kawg, sewable xov. Txhua tus strand los yog ply kuj muaj ntau yam microstrands twisted ua ke. Ib qho tseem ceeb ntawm cov xov zoo yog tus naj npawb ntawm twists thov rau cov xov nyob rau hauv ib tug muab ntev, xws li twists ib 'meter'. Loosely twisted kab zoo li loj thiab fluffy ntawm lub khob hliav qab los yog spool. Nws unravels thiab shreds yooj yim dua li nruj hlau.
Xav txog cov xov txav raws txoj kab ntawm lub tshuab xaws los yog caj npab ntev, hla lub nro disk thiab tom qab ntawd los ntawm rab koob. Yog hais tias cov xov muaj ib tug xoob twist, nws yuav yooj yim tau snagged, pinched, los yog snagged. Cov snags me me tuaj yeem ua rau lint buildup raws li cov khoom me me rhuav tshem cov xov thaum nws hla txoj kev xov ntawm pua pua ntawm stitches ib feeb. Kev cuam tshuam tsis zoo los yog kev sib tsoo tuaj yeem ua rau muaj kev cuam tshuam. Tightly twisted hlau muaj ib tug smoother nto thiab yuav tsis tau snagged los yog snagged yooj yim
Txawm hais tias twist yeej tsis tau luam tawm ntawm daim ntawv lo, nws yog ntsuas los ntawm tus nqi ntawm kev sib tw rau ib lub 'meter' (kwv yees li 3 feet). Loosely twisted yarn yuav tsum muaj cov ntsiab lus fiber ntau tsawg, siv sijhawm tsawg los tsim, thiab tsis tshua kim. Cov xov tsis zoo, tus nqi qis yuav tsuas muaj 150 twists ib 'meter'. Xav tias $0.99 tapered zigzag qaum uas tuaj yeem yooj yim untwisted los ntawm rub nws nrog koj cov ntiv tes. Nws yog pheej yig vim tias nws tsis ua haujlwm zoo thiab muaj qhov sib tw tsawg heev hauv ib 'meter'. Los ntawm kev sib piv, cov xov zoo zoo tuaj yeem muaj txog li 1,200 twists ib 'meter'. Qhov no ua rau lub ntsej muag du thiab zoo ib yam. Cov twist siab dua kuj compresses ntau cov ntsiab lus xaim mus rau hauv ib txoj kab uas hla tsawg, uas ua rau muaj zog tensile ntau dua (tawg). Qhov no yog ib qho laj thawj vim li cas cov hlau zoo nkauj tawg tsawg dua li cov hlau tsis zoo.
Ntawm no yog ib qho piv txwv ntawm qhov kev sib tw zoo li cas rau qhov zoo ntawm koj cov xov: Siv ib lub phuam da dej loj, tso rau hauv pem teb, thiab ntsuas qhov ntev. Wb hais tias nws ntev 48 ntiv tes. Yob cov phuam ntev kom lub phuam dov tseem yog 48 ntiv tes ntev. Pib twisting phuam. Ntsuas qhov ntev tom qab txhua txhua 3-4 twists thiab koj yuav pom tias qhov ntev tau txo los ntawm kwv yees li ob ntiv tes. Txuas ntxiv twisting phuam 10 zaug ntxiv thiab cov phuam yuav tsuas yog ntev li ntawm 36 ntiv tes. Qhov ntev ntawm txoj phuam yog txo los ntawm 25%. Txawm li cas los xij, qhov tshwm sim yog ib txoj phuam du heev. Tightly twisted phuam kuj muaj zog ntau dua li xoob twisted phuam. Qhov ntau rotation (twisting), lub smoother nto.
Yog tias peb pib ntawm 10, 000 yards. Nrog untwisted kab thiab siv ib tug xoob twist, peb yuav xaus nrog 9,500 yards. Cov xov xaus yog lint-zoo li, nws yooj yim tawg, thiab muaj qhov tsis sib xws, zoo li du. Yog tias peb siv qhov sib tw ntau dua-ib-meter los tsim cov xov zoo, qhov kawg ntawm cov xov twisted yuav yog kwv yees li 7,500 yards. Cov xov zoo zoo yuav tsum muaj kwv yees li 20% fiber ntau dua li cov xov zoo. Zoo li ntau yam, koj tau txais yam koj them rau.
Dab tsi yog S twist thiab Z twist?
Tsis ntev los no, muaj ntau qhov kev sib tham thiab mloog txog S-twist thiab Z-twist. Qee tus neeg hais txog xov twist li sab laug twist lossis txoj cai twist, tab sis lub sij hawm raug yog S twist los yog Z twist. Thaum xaws xov yog tsim, nws yog tsim los ntawm ntau cov xov xov, feem ntau yog ob los yog peb strands (tseem hu ua strands los yog strands) twisted ua ke, txawm hais tias ib txhia yuav muaj li ntawm rau los yog yim strands twisted ua ke. Tag nrho cov xaws, paj ntaub los yog quilting xov ua rau domestic, industrial los yog ntev caj npab tshuab yuav tsum muaj ib tug zaum kawg Z twist qauv.
Thawj twist (los yog thawj twist) ntawm txhua txoj hlua yuav tsum yog S twist. Cov strands yog ces twisted ua ke nyob rau hauv ib tug kawg Z twist los tsim cov xov. Qhov no yog tib yam rau txhua hom kev xaws, paj ntaub lossis quilting tshuab hauv ntiaj teb. Muaj qee cov xov uas muaj qhov sib tw twists. Qee cov tes quilting, knitting thiab weaving threads muaj qhov kawg twist ntawm S twist. Yog tias koj siv xov nrog twists, cov xov yuav loosen es tsis txhob nruj raws li koj sew. Cov xov tsis tau cim nrog tus qauv twist vim nws tsis suav tias yog qhov tseem ceeb kom paub. Yog tias koj siv cov xov zoo los ntawm lub tuam txhab txhim khu kev qha thiab stitching rau nws qhov kev npaj siv, muaj lub caij nyoog zoo nws muaj qhov tseeb twist. Yog tias koj pom tias koj cov xov xaws tsis sib haum thaum xaws, cov xov yuav tsis haum rau kev siv tshuab.
