发明名称 |
NONWOVEN FABRIC AND PRODUCTION METHOD FOR NONWOVEN FABRIC |
摘要 |
A nonwoven fabric comprising heat-expanding particles, having bulk and high strength, and a method for producing the nonwoven fabric. The method of producing a nonwoven fabric according to the invention comprises a step of supplying a first sheet-forming material comprising fiber and water onto a belt, to form a first sheet layer on the belt, a step of spraying a high-pressure water jet onto the first sheet layer to form grooves extending in the machine direction on the surface, a step of forming a second sheet-forming material comprising fibers, heat-expanding particles and water into a sheet to form a second sheet layer, a step of layering the first sheet layer and the second sheet layer to form a third sheet layer, a step of drying the third sheet layer, and a step of spraying high-pressure steam onto the third sheet layer to expand the heat-expanding particles. The nonwoven fabric of the invention is provided with a fiber-containing first layer having a plurality of grooves extending in the longitudinal direction and aligned in the transverse direction, on the first surface, and is provided with a second layer comprising expanded heat-expanding particles and fibers, on the second surface. |
申请公布号 |
US2015030811(A1) |
申请公布日期 |
2015.01.29 |
申请号 |
US201314388149 |
申请日期 |
2013.03.25 |
申请人 |
Unicharm Corporation |
发明人 |
Konishi Takayoshi;Hiraoka Toshio |
分类号 |
D04H13/00;B32B37/20;B32B38/00;B32B37/00 |
主分类号 |
D04H13/00 |
代理机构 |
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代理人 |
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主权项 |
1. A method of producing a nonwoven fabric, comprising the steps of:
supplying a first sheet-forming material comprising fiber and water onto a belt moving in one direction, to form a first sheet layer on the belt, spraying a high-pressure water jet onto the first sheet layer to form grooves extending in the machine direction on the surface of the first sheet layer, forming a second sheet-forming material comprising fibers, heat-expanding particles and water into a sheet to form a second sheet layer, layering the first sheet layer and the second sheet layer to form a third sheet layer, drying the third sheet layer, and spraying high-pressure steam onto the third sheet layer from a steam nozzle to expand the heat-expanding particles. |
地址 |
Ehime JP |