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    • 3. 发明专利
    • Nonwoven fabric base material for wipe-off sheet
    • 非织造布材料用于擦拭纸
    • JP2014108307A
    • 2014-06-12
    • JP2012265037
    • 2012-12-04
    • Kao Corp花王株式会社
    • HAYASE TAEKOSHIRASAKI EMIKOWADA MINORU
    • A47L13/16A47L13/17D04H1/495D04H1/76
    • A47L13/16A47L13/17D04H1/495Y10T428/24273Y10T428/2457Y10T428/24603Y10T442/20Y10T442/2525Y10T442/277Y10T442/60Y10T442/689
    • PROBLEM TO BE SOLVED: To provide a nonwoven fabric base material hardly leaving unclean areas, and improved in thickness feeling when used for cleaning in a condition of being folded in a rectangular shape.SOLUTION: A nonwoven fabric base material 1 is made such that ridges 2 and grooves 3 are alternately formed at mutually corresponding positions on both surfaces 1a and 1b, and open holes 4 penetrating through the grooves 3 of both the surfaces. The ridges 2 and the grooves 3 extend in parallel to each other. The ridges 2 and the grooves 3 extend in a direction intersecting with a pair of both sides 1c and 1d extending in parallel to the nonwoven fabric base material 1. In plan view, each of the grooves 3 includes open hole parts 3h with the open holes 4 and non-open hole parts 3n without the open holes 4 alternately, and arrangement patterns of the open hole parts 3h and the non-open hole parts 3n which are included in the grooves 3 adjacent to each other are different from each other. The nonwoven fabric base material 1 includes, in plan view, open hole areas 11 composed of the open hole parts 3h of a plurality of grooves 3 and non-open hole areas 12 composed of the non-open hole parts 3n. The open hole areas 11 and the non-open hole areas 12 are arranged in a predetermined pattern.
    • 要解决的问题:提供一种几乎不会残留不洁区域的无纺布基材,并且在折叠成矩形状态时用于清洁时的厚度感改善。解决方案:制造无纺布基材1,使得脊 2和沟槽3交替地形成在两个表面1a和1b上的相互对应的位置,以及穿过两个表面的沟槽3的开孔4。 脊2和沟槽3彼此平行地延伸。 脊2和沟槽3在与无纺织物基材1平行的一对两侧1c和1d相交的方向上延伸。在平面图中,每个槽3包括具有开孔的敞开孔部3h 4和不具有开孔4的非开孔部3n交替,并且包括在彼此相邻的槽3中的开孔部3h和非开孔部3n的布置图形彼此不同。 无纺布基材1在平面图中包括由多个槽3的开孔部3h构成的露孔区域11和由非开孔部3n构成的非开放孔区域12。 开孔区域11和非开放孔区域12以预定图案布置。