Patent ID: 9175428
Filing Date: 2015-11-03
Classification: D04H

Abstract:
1. A method of making a double-sided embossed non-woven fabric, comprising: forming a stack of semi-molten fibers on a screen assembly on a suctioning device, the screen assembly including a first layer structure that has a screen well body and a plurality of recessed suction holes formed in the screen wall body and arranged into a first pattern, and a second layer structure that is disposed on the first layer structure and that has a plurality of raised elements disposed on the screen wall body and arranged into a second pattern, wherein the stack of the semi-molten fibers is formed by melting resin pellets to form a melt, followed by feeding the melt through a fiber-forming device to form the semi-molten fibers and subsequently discharging the semi-molten fibers from the fiber-forming device onto the screen assembly; and embossing the stack of the semi-molten fibers on the screen assembly by suctioning the stack of the semi-molten fibers using the suctioning device such that the stack of the semi-molten fibers is drawn into the recessed suction holes to wrap the raised elements and an area of the screen wall body which is not covered by the second layer structure, thereby forming the stack of the semi-molten fibers into a non-woven fabric having a base portion covering the area of the screen wall body, a first level of recessed portions extending downwardly from the base portion and having a recess pattern corresponding to the first pattern of the screen assembly, and a second level of protuberant portions extending upwardly from the base portion and having a raised pattern corresponding to the second pattern.