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US 12,594,198 B2Granted
Disposable wearing article and method for manufacturing the same
AssigneeDaio Paper Corporation
InventorAkiko Nagano
Life of this patent
Estimating the term…
Abstract
A disposable wearing article having an excellent rash preventing effect. A skin contact region in a top sheet formed of a nonwoven fabric having a basis weight of 5 to 40 g/m2 has a glycerin-containing region in which glycerin is applied in a region to which a body fluid pervious treatment agent containing a nonionic surfactant having an amide and/or amino group is applied.
Claims3
A disposable wearing article comprising:
- a top sheet having a skin contact region configured to contact a skin of a wearer,
- wherein the top sheet is formed of a nonwoven fabric having a fineness of 1.5 to 2.5 dtx, a basis weight of 15 to 25 g/m2, and a thickness of 0.4 to 1.4 mm,
- the nonwoven fabric is a nonwoven fabric of hydrophilic fibers in which a hydrophilizing agent is applied to fibers of a hydrophobic resin,
- the skin contact region has,
- in a region into which a body fluid pervious treatment agent is attached, the body fluid pervious treatment agent comprising a nonionic surfactant consisting of a single fatty acid alkanolamide having an HLB value of 8 to 15, and the body fluid pervious treatment agent not containing an anionic surfactant, a cationic surfactant, or an amphoteric ion-based surfactant,
- a glycerin-containing region to which a hydrophilic lotion containing 70 to 90% by weight of glycerin and 10 to 30% by weight of water is applied,
- an attachment amount of the body fluid pervious treatment agent in the region in which the body fluid pervious treatment agent is attached is 0.05 to 2% by weight,
- the glycerin-containing region in the region in which the body fluid pervious treatment agent is attached contains 0.7 to 2.7 g/m2 of glycerin and has a size of 100 mm or more in an MD (Machine Direction) direction and a size of 5 mm or more in a CD (Cross Direction) direction and,
- an area ratio of the glycerin-containing region in the skin contact region in an unfolded state is 3% or more.
6 more elements
A method for manufacturing a disposable wearing article, including a top sheet having a skin contact region configured to contact a skin of a wearer, comprising:
- using a nonwoven fabric having a fineness of 1.5 to 2.5 dtx, a basis weight of 15 to 25 g/m2 and a thickness of 0.4 to 1.4 mm as the top sheet;
- wherein the nonwoven fabric is a nonwoven fabric of hydrophilic fibers in which a hydrophilizing agent is applied to fibers of a hydrophobic resin;
- attaching a body fluid pervious treatment agent comprising a nonionic surfactant consisting only of a single fatty acid alkanolamide having an HLB value of 8 to 15, the body fluid pervious treatment agent not containing an anionic surfactant, a cationic surfactant, or an amphoteric ion-based surfactant;
- forming a region attaching the body fluid pervious treatment agent in which an attachment amount of the body fluid pervious treatment agent is 0.05 to 2% by weight on the basis of a fiber weight of the top sheet;
- applying a hydrophilic lotion containing 70 to 90% by weight of glycerin and 10 to 30% by weight of water, to the region attaching the body fluid pervious treatment agent;
- and
- forming a glycerin-containing region containing 0.7 to 2.7 g/m2 of glycerin and having a size of 100 mm or more in an MD (Machine Direction) direction, a size of 5 mm or more in a CD (Cross Direction) direction, and an area ratio of the glycerin-containing region in the skin contact region in an unfolded state of 3% or more.
4 more elements
Dependencies are inferred from the claim text.