Unicharm Corporation

Kou Detani

Satoshi Mizutani

Satoshi Mitsuno

Jun Okuda

Hiroki Goda

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&#xb0; 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.

Process for producing stretch nonwoven fabric, and stretch nonwoven fabric

The present invention provides a bodily fluid-absorbent structure improved so as to facilitate bodily fluids to disperse in a thickness direction of the structure. Core material of a bodily fluid-absorbent structure is formed of an aggregation of fluff wood pulp fibers. The aggregation has a basis mass in a range of 150 to 500 g/mand a specific volume in a range of 3 to 20 cc/g. In the aggregation, a relationship between horizontal orientation index Iand specific volume VSP of fluff wood pulp fibers is represented by a formula as follows:Iis less than or equal to &#x2212;0.099VSP+2.4.

Growing community of inventors

Kanonji, Japan

Kou Detani