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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0162556 (1988-03-01) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 3 인용 특허 : 4 |
Process of manufacturing felts in which a batt is fastened to a felt on its one or two sides, said batt (5) consisting of one or several layers of fibers and characterized in that said layers are obtained from carding the fibers and possibly preneedling them by passage through a preneedling machine
An improved wet press felt of the type having a base which is combined with at least one batt consisting of multiple fiber layers, the improvement characterized in that prior to being combined with said base said batt is predensified by at least three passages through a needling machine having a hig
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