Stretchable bulky nonwoven fabric and method for manufacturing the same
AssigneesJnc Corporation, Jnc Fibers Corporation
InventorHIROKAZU TERADA
Life of this patent
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Abstract
To provide a stretchable bulky nonwoven fabric having a high bulkiness and a good feeling; wherein a first fibrous layer including fibers (1) is laminated with a second fibrous layer including heat fusible fibers (2) and having a MD shrinkage ratio lower by 5% or more than a MD shrinkage ratio of the first fibrous layer, the first fibrous layer and the second fibrous layer are integrated by entanglement between the fibers (1) included in the first fibrous layer and fibers (2) included in the second fibrous layer, the first fibrous layer is shrunk to form a structure in which the second layer is raised in the thickness direction, and sonic bond processing is applied from a side of the second fibrous layer.
Claims6
A stretchable bulky nonwoven fabric, wherein a first fibrous layer including fibers (1) is laminated with a second fibrous layer including heat fusible fibers (2) and having a MD shrinkage ratio that is lower by 5% or more than a MD shrinkage ratio of the first fibrous layer, the first fibrous layer and the second fibrous layer are integrated by entanglement between the fibers (1) included in the first fibrous layer and the fibers (2) included in the second fibrous layer, the first fibrous layer is shrunk to form a structure in which the second fibrous layer is raised in a thickness direction, and sonic bond processing is partially applied from a side of the second fibrous layer.
A method for manufacturing a stretchable bulky nonwoven fabric, comprising:
- laminating a first fibrous layer including fibers (1) and a second fibrous layer including heat fusible fibers (2) and having a MD shrinkage ratio that is lower by 5% or more than a MD shrinkage ratio of the first fibrous layer;
- integrating the first fibrous layer and the second fibrous layer by entanglement between the fibers (1) included in the first fibrous layer and the fibers (2) included in the second fibrous layer;
- shrinking the first fibrous layer to form a structure in which the second fibrous layer is raised in a thickness direction;
- and partially applying sonic bond processing from a side of the second fibrous layer.
Dependencies are inferred from the claim text.