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US 2022/0273154 A1Published application
Wiping sheet and method for producing wiping sheet
AssigneeDaio Paper Corporation
InventorShoko YAMASHITA
Life of this patent
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Abstract
A wiping sheet having a plurality of nonwoven fabrics that are stacked and bonded together includes cellulose nanofiber that is included in an applied part where adjacent nonwoven fabrics among the nonwoven fabrics are bonded. At least one of the adjacent nonwoven fabrics is a spunlace nonwoven fabric.
Claims8
1-7. (canceled)
A wiping sheet having a plurality of nonwoven fabrics that are stacked and bonded together, comprising:
- cellulose nanofiber that is included in an applied part where adjacent nonwoven fabrics among the nonwoven fabrics are bonded,
- wherein at least one of the adjacent nonwoven fabrics is a spunlace nonwoven fabric.
A method for producing a wiping sheet, comprising:
- applying cellulose nanofiber solution of a concentration of 0.5% to 2.0% to a surface of a first nonwoven fabric according to a pattern that has been set;
- superposing the first nonwoven fabric to which the cellulose nanofiber solution is applied and a second nonwoven fabric such that the surface is in contact with the second nonwoven fabric;
- and
- drying including thermal drying and bonding of the first nonwoven fabric and the second nonwoven fabric that have been superposed in the superposing,
- wherein at least one of the first nonwoven fabric and the second nonwoven fabric is a spunlace nonwoven fabric.
2 more elements
Dependencies are inferred from the claim text.