sheath-core bi-component fiber, he ʻano puluniu kemika no ka lole ulana kuʻuna, hoʻohana nui ʻia no ka lole. spinneret a mākou i hana ai i loaʻa nā manaʻo maikaʻi mai ka mākeke, a kūʻai ʻia aku i ka ʻĀpana hema hikina.