MUMBAI, India, July 13 -- Intellectual Property India has published a patent application (202617074885 A) filed by Unicharm Corporation on June 17, 2026, for Nonwoven Fabric For Liquid-Permeable Sheet Of Absorbent Article, Absorbent Article Including Said Nonwoven Fabric, And Method For Producing Said Nonwoven Fabric.
Inventors include Detani, Ko; Nomoto, Takashi; and Kimura, Akihiro Number.
The application for the patent was published on July 10, 2026, under issue no. 28/2026.
Abstract: The present disclosure addresses the problem of providing a nonwoven fabric which, when used as a liquid-permeable sheet of an absorbent article for absorbing menstrual blood, is less likely to be colored red due to menstrual blood and has an excellent property of hiding transferred menstrual blood inside the absorbent article. Provided is a nonwoven fabric 1 which is for a liquid-permeable sheet of an absorbent article for absorbing menstrual blood and which comprises a heat-shrunken fiber layer 3 that includes heat-shrunken fibers 5 obtained by thermally shrinking heat-shrinkable hydrophobic fibers, said nonwoven fabric 1 being characterized in that: in the heat-shrunken fiber layer 3, the heat-shrunken fibers 5 extend in a first direction D1 and in a second direction D2; the heat-shrunken fiber layer 3 includes a plurality of hydrophilic regions 7 and a hydrophobic region 9; the plurality of hydrophilic regions 7 continuously or intermittently extend in a direction along the first direction D1 and are spaced apart from each other in the second direction D2; in each of the plurality of hydrophilic regions 7, hydrophilic fibers 13 penetrate the heat-shrunken fibers 5 from a first surface S1 to a second surface S2 in a thickness direction T; and in the heat-shrunken fiber layer 3, the heat-shrunken fibers 5 are disposed on the first surface S1.
Disclaimer: Curated by HT Syndication.
