Patent ID: 6590134
Filing Date: 2003-07-08
Classification: A61F,B29C,B29L

Abstract:
A production method of a pad comprising an approximate-quadrangular portion and approximate-arched portions attached to both lateral sides of the approximate-quadrangular portion made up with a nonwoven fabric and the surface of said pad being covered with a polymer net; andwhen L represents the length of the approximate-quadrangular portion in the direction parallel to the lateral axis, S represents the length of the approximate-quadrangular portion in the direction parallel to the vertical axis and R represents a radius of said approximate-arched portion, following relations are satisfied: 0.5S&lE;L&lE;4S between L and S 0.5S&lE;Rbetween S and R, wherein the nonwoven fabric and the polymer net of the whole periphery of said pad are sealed and cut simultaneously by ultrasonic heating.