发明授权
US4122658A False-twist yarn and process 失效
假捻纱和工艺

False-twist yarn and process
摘要:
"Islands-in-a-sea" type composite filaments consisting of a relatively low melting point sea component and a plurality of higher melting point island components are false-twisted at a false-twisting temperature Q, wherein:P + 10 .ltoreq. Q
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