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籽(zi)(zi)棉的(de)(de)(de)副產品也具有一定的(de)(de)(de)用(yong)(yong)途。籽(zi)(zi)棉經軋花機(ji)加(jia)工，使棉纖(xian)維(wei)與棉籽(zi)(zi)分(fen)(fen)離。分(fen)(fen)離出的(de)(de)(de)棉籽(zi)(zi)叫毛棉籽(zi)(zi)，毛棉籽(zi)(zi)上還有少量的(de)(de)(de)短(duan)纖(xian)維(wei)即短(duan)絨(rong)(rong)(rong)(rong)，短(duan)絨(rong)(rong)(rong)(rong)利用(yong)(yong)價值相當高。一般，毛棉籽(zi)(zi)要(yao)進(jin)入(ru)剝絨(rong)(rong)(rong)(rong)車間進(jin)行剝絨(rong)(rong)(rong)(rong)(做(zuo)種子用(yong)(yong)的(de)(de)(de)棉籽(zi)(zi)除外，另外用(yong)(yong)化(hua)學方法處理(li)其上面(mian)的(de)(de)(de)短(duan)絨(rong)(rong)(rong)(rong))。據工藝(yi)要(yao)求，剝絨(rong)(rong)(rong)(rong)機(ji)剝出棉短(duan)絨(rong)(rong)(rong)(rong)分(fen)(fen)Ⅰ道絨(rong)(rong)(rong)(rong)、Ⅱ道絨(rong)(rong)(rong)(rong)、Ⅲ道絨(rong)(rong)(rong)(rong)，Ⅰ 道絨(rong)(rong)(rong)(rong)用(yong)(yong)于造(zao)紙(如錢幣(bi)用(yong)(yong)紙)等(deng)(deng)，Ⅱ、Ⅲ道絨(rong)(rong)(rong)(rong)用(yong)(yong)于化(hua)工，用(yong)(yong)來(lai)生產電影膠片、軍用(yong)(yong)無煙火藥等(deng)(deng)。剝完絨(rong)(rong)(rong)(rong)后(hou)的(de)(de)(de)棉籽(zi)(zi)叫光籽(zi)(zi)，經加(jia)工后(hou)可用(yong)(yong)作家畜飼(si)料及(ji)培養食用(yong)(yong)菌基料等(deng)(deng)。