Method of making isotropic fibrous webs containing textile length fibers |
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| 申请号 | US3794557D | 申请日 | 1969-03-26 | 公开(公告)号 | US3794557A | 公开(公告)日 | 1974-02-26 |
| 申请人 | JOHNSON & JOHNSON; | 发明人 | HARMON C; | ||||
| 摘要 | FIBROUS WEBS CONTAINING TEXTILE LENGTH RAYON FIBERS WHICH ARE SUBSTANTIALLY STRAIGHT AND UNIDIRECTIONAL AND HAVE FEW, IF ANY, PORTIONS WHICH SHARPLY REVERSE IN DIRECTION, SAID FIBERS HAVING A DENIER OF LESS THAN ABOUT 3 AND PREFERABLY ABOUT 1 1/2 OR 1 AND A LENGTH OF AT LEAST ABOUT 1/2 INCH AND PREFERABLU AT LEAST ABOUT / INCH OR 1 INCH, SAID FIBROUS WEBS BEING MADE BY ADDING SAID TEXTILE LENGTH RAYON FIBERS TO AQUEOUS MEDIA CONTAINING A SYNTHETIC, EXTREMELY HIGH MOLECYLAR WEIGHT, LINEAR POLYMERIC, WATER SOLUBLE, HYDROPHILIC DISPERSING AGENT TO FORM AN AQUEOUS FIBER SLURRY, AND FORMING A FIBROUS WEB FROM SAID AQUEOUS FIBER SLURRY ON PAPER MAKING EQUIPMENT, SAID FIBROUS WEBS BEING ISOTROPIC AND POSSESSING EXCELLENT UNIFORMITY INSOFAR AS DENSITY AND APPEARANCE ARE CONCERNED, AND WELL SUITED FOR FURTHER PROCESSING INTO NONWOVEN FABRICS HAVING EXCELLENT TEAR RESISTANCE AND TENSILE STRENGTH. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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