| abstract |
The present invention relates to soft and dry absorbent materials, methods of manufacture and applications. The manufacturing method includes (1) a wood pulp treatment step: pulping wood pulp comprising 50-85% short-fiber wood pulp and 15-50% long-fiber wood pulp, the pulp concentration is 4.5-5.0 wt%, and then at 20 Refining at a power of ‑200kW to obtain wood pulp with a Canadian freeness of 450‑600mL; (2) pulping step: mixing the fluff pulp and the wood pulp treated in step (1), and controlling the concentration of the mixed pulp at 4.0 -5.0wt%; (3) forming papermaking step; (4) compounding polymer water-absorbing resin step; (5) drying and winding step. The composite material prepared by this method has a super soft and dry hand, which solves the problem of hard hand feeling of the composite material produced by the ordinary wet method. |