A na-eji akpa nzacha agịga polyester eme ihe site na iji eriri eme ihe, nkesa oghere nke ákwà eriri dị mma, eriri polyester staple na polyester nwere eriri agbagọ nke agịga ahụ mepụtara mgbe ejiri ya mee ihe mgbe ọ na-agbagharị ọkụ, na-agbagharị ma ọ bụ na-ekpuchi ya, ka elu ya dị nro, ọ dịghị mfe igbochi ya site na uzuzu, porosity nke ihe nzacha ahụ, ikuku ka mma. Jiri nnukwu iguzogide siri ike na nkwụsi ike kemịkalụ, ọ bụghị naanị nzacha gas na okpomọkụ ụlọ, yana nzacha nwere acid na alkali corrosion gas, yana nzacha mmiri. Ihe nzacha mmanụ bụ ọnọdụ okpomọkụ nkịtị. Nkewa siri ike mmiri mmiri na mpaghara ndị ọzọ nke ihe nzacha kacha mma.
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