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    • 3. 发明专利
    • Nonwoven fabric, method for manufacturing the same and absorbent article using the same
    • 非织造布,其制造方法和使用其的吸收性物品
    • JP2012052256A
    • 2012-03-15
    • JP2010194621
    • 2010-08-31
    • Uni Charm Corpユニ・チャーム株式会社
    • KIMURA AKIHIROOBA TORU
    • D04H1/70A61F13/49A61F13/511D04H1/559
    • D04H1/22A61F13/15731A61F13/51108A61F13/51305A61F13/53704A61F2013/51355A61F2013/53734A61F2013/53773A61F2013/53778D04H1/482D04H1/485D04H1/49D04H1/498
    • PROBLEM TO BE SOLVED: To provide a nonwoven fabric and a method for manufacturing the same, capable of preventing so called rewetting back that is permeation of liquid absorbed by an absorber to the surface.SOLUTION: A nonwoven fabric 1 has an MD direction, a CD direction and a thickness direction that are orthogonal to each other, and has a front surface and a rear surface that is a reverse surface to the front surface in the thickness direction. The front surface has formed thereon convex portions 2 and concave portions 13a extending in parallel with each other in the MD direction and arranged alternately in a manner repeating rises and falls in the CD direction. The rear surface has formed thereon a rear surface portion 3 extending over the entire rear surface. The convex portions 2 each include a convex tip 21 at a top portion 2a of the convex portion 2 and a neck portion 22 connecting the convex tip 21 and the rear surface portion 3. In a cross section of the convex portion 2 in the CD direction, a cross-section width of the neck portion 22 is smaller than that of the convex tip 21, and the concave portions 13a each have a space formed by two neck portions 22 each supporting adjacent convex tips 21 and the rear surface portion 3.
    • 解决的问题:提供一种无纺织物及其制造方法,能够防止被吸收剂吸收的液体渗透到表面的所谓的再润湿。 解决方案:无纺布1具有彼此正交的MD方向,CD方向和厚度方向,并且具有在厚度方向上与前表面相反的表面的表面和后表面 。 前表面上形成有沿MD方向彼此平行延伸的凸部2和凹部13a,并且以沿CD方向重复上下的方式交替排列。 后表面上形成有在整个后表面上延伸的后表面部分3。 凸部2在凸部2的顶部2a处形成有凸起部21,以及连接凸起部21和背面部3的颈部22.在凸部2的CD方向的截面 颈部22的横截面宽度小于凸起部21的横截面宽度,并且凹部13a各自具有由两个颈部部分22形成的空间,每个颈部部分22分别支撑相邻的凸起顶部21和后表面部分3。 P>版权所有(C)2012,JPO&INPIT