Chinangwa che pre shrinking uye kuronga

    Chinangwa chejira pre shrink kupedzisa ndechekufanodzikisira jira kusvika padanho rewarp uye weft nzira, kuitira kudzikisa shrinkage yechigadzirwa chekupedzisira uye kusangana nemhando yezvinodiwa zvekugadzira zvipfeko.

    Munguva yekudhaya uye kupedzisa maitiro, jira rinoiswa mukushushikana munzira yewarp, zvichikonzera kuderera kwehurefu hwewarp bending wave uye kuitika kwekurebesa. Kana machira e hydrophilic faibha akanyorova uye akanyoroveswa, mafiber anozvimba, uye madhayamita ewarp uye weft warn anowedzera, zvichikonzera kuwedzera kwekubhenda kwemafungu kureba kweshinda yewarp, kuderedzwa kwehurefu hwejira, uye kugadzirwa kwe shrinkage. Kudzikiswa kwehuwandu hwehurefu kana kuchienzaniswa nehurefu hwepakutanga kunonzi shrinkage rate.

    Iyo yekupedzisa nzira yekudzikisa shrinkage yemachira mushure mekunyudzwa mumvura uchishandisa nzira dzemuviri, inozivikanwawo se mechanical pre shrinkage finishing. Mechanical preshrinking ndeyekunyorovesa jira nekupfapfaidza chiutsi kana pfapfaidzo, wobva waisa longitudinal mechanical extrusion kuti uwedzere buckling wave kureba, wobva wasununguka kuomesa. Iyo shrinkage rate ye pre shrunk donje jira inogona kudzikiswa kusvika isingasviki 1%, uye nekuda kwekumanikidzana pamwe nekukwesha pakati pe fiber neshinda, kupfava kwekunzwa kwejira kuchavandudzwa zvakare.