Ruvara rwejira rerudzi urwu runogona kugadziriswa sezvaunoda. Rakagadzirwa ne65% polyester uye 35% donje.
Nzvimbo yekunyunguduka kwepolyester iri pedyo neye polyamide, inotangira pa250 kusvika 300°C. Mashinda epolyester anodzikira kubva mumoto obva anyunguduka, zvichisiya zvasara zvitema zvakasimba. Jira rinopisa nekunhuhwirira kwakasimba, kunorwadza. Kupisa kwemashinda epolyester, hakungogadzikisi saizi nechimiro asiwo kunowedzera kuramba kwemakwinya kwemashinda. Mashinda edonje ishinda dzechisikigo dzisina chinhu; dzakapfava, dzinotonhorera, dzinozivikanwa semashinda anofema uye dzinonyungudutsa. Mashinda edonje anogona kuchengeta mvura zvakapetwa ka24-27 huremu hwadzo. Akasimba, anonyungudutsa dhayi uye anogona kumira pakukuvadzwa uye kupisa kwakanyanya. Neshoko rimwe chete, donje rinonyaradza. Sezvo donje richikwinya, kusanganisa ne polyester kana kuisa imwe finish inogara kwenguva refu kunoita kuti zvipfeko zvedonje zvive zvakanaka. Mashinda edonje anowanzo sanganiswa nedzimwe shinda dzakadai senylon, linen, wool, uye polyester, kuti awane hunyanzvi hwakanakisa hwefaibha yega yega.






