公开(公告)号：US4256877A

公开(公告)日：1981-03-17

申请号：US860250

申请日：1977-12-13

申请人： Alf H. Karlsson ,  Hans E. Lundstrom ,  Lars-Henrik Olsson

发明人： Alf H. Karlsson ,  Hans E. Lundstrom ,  Lars-Henrik Olsson

IPC分类号： A61F13/472 ,  A61F13/15 ,  A61F13/53 ,  A61L15/28 ,  A61L15/60 ,  C08B3/22 ,  C08B11/20 ,  C08L1/00

CPC分类号： C08B11/20 ,  A61L15/28 ,  C08B3/22

摘要： An absorbent cellulose material is disclosed which comprises a substituted cellulose having an average degree of substitution sufficiently low to render the material insoluble and in which the fibers have an increased surface area formed by bursting the fibers during drying. In addition, a method of manufacturing such absorbent material is also disclosed which comprises providing an insoluble substituted cellulose material having an average degree of substitution sufficiently low to render the material insoluble, swelling the material to its maximum swelled state, fixing the material in that state, and drying the material while maintaining the material in its swelled state to thereby prevent shrinkage of the material during drying and to cause the fibers to burst during drying.

摘要翻译： 公开了一种吸收性纤维素材料，其包含具有平均取代度的取代纤维素足够低以使材料不溶，并且其中纤维具有通过在干燥期间破裂而形成的增加的表面积。 此外，还公开了制造这种吸收材料的方法，其包括提供平均取代度足够低的不溶性取代的纤维素材料，使得材料不溶，使材料膨胀至其最大溶胀状态，将材料固定在该状态 并且在保持材料处于其膨胀状态的同时干燥材料，从而防止干燥期间材料的收缩，并使纤维在干燥期间爆裂。