PROCESS FOR PRODUCING STRETCH NONWOVEN FABRIC, AND STRETCH NONWOVEN FABRIC

摘要

The purpose of this disclosure is to provide a process for producing stretch nonwoven fabric having excellent stretchability. This production process has the following configuration. The process for producing stretch nonwoven fabric comprises: a step in which nonwoven fabric to be treated which comprises stretchable fibers and extensible fibers is unevenly stretched, while being conveyed, so that nonwoven fabric having both higher stretched regions and lower stretched regions is formed; and a step in which the nonwoven fabric having both higher stretched regions and lower stretched regions is heated for 0.1-10 seconds at a temperature which is 40° C. or higher but is lower than the melting point of the stretchable fibers. The production process is characterized in that in the nonwoven fabric having both higher stretched regions and lower stretched regions, the higher stretched regions and the lower stretched regions are parallel to the direction perpendicular to the conveying direction and are present alternately in the conveying direction.

主权项

1. A method of producing a stretchable nonwoven fabric comprising the steps of:
non-homogeneous stretching of a nonwoven fabric to be treated comprising elastic fiber and extensible fiber while transporting the nonwoven fabric to be treated so that a nonwoven fabric having high-stretch regions and low-stretch regions is formed, and heating the nonwoven fabric having high-stretch regions and low-stretch regions for 0.1 to 10 seconds at a temperature of 40° C. or higher and below the melting point of the elastic fiber, wherein the nonwoven fabric having high-stretch regions and low-stretch regions has the high-stretch regions and low-stretch regions alternating in the machine direction, each parallel to the direction perpendicular to the machine direction.