Patent ID: 8557068
Filing Date: 2013-10-15
Classification: A61F,Y10T

Abstract:
1. A method for manufacturing an absorbent body of a body fluid absorbing article, the absorbent body comprising an air laid absorbent fiber having a dispersed and thin layer of a mixed absorbent fiber and super absorbent polymer, the method comprising the steps of: (i) conveying an the absorbent fiber and a super absorbent polymer in an air flow into multiple dispersing chutes; (ii) ejecting at the same time the absorbent fiber and the super absorbent polymer from multiple dispersing chutes onto an endless air-permeable conveyor belt; (iii) applying an air sucking action on the absorbent fiber and the super absorbent polymer, while the absorbent fiber and the super absorbent polymer are disentangled and mixed to accumulate the absorbent fiber and the super absorbent fiber to form a web on said conveyor belt, said conveyor belt having a plurality of recess portions on the periphery thereof such that the air sucking action and accumulation are performed so as to allow only the inside of said recess portions to be of an air permeable structure; (iv) transferring the web from said conveyor belt to opposing heating and pressing rolls; (v) thinning the web by application of the opposing heating and pressing rolls against the web to produce an air laid absorbent body sheet; and (vi) winding the air laid absorbent body sheet on a winding roll.