CLEANING SHEET

• US 20100015383A1
• Filed: 02/06/2008
• Published: 01/21/2010
• Est. Priority Date: 02/13/2007
• Status: Active Grant

• Current Assignee: Self Settled Trust of Yamada Kikuo Yamada Kikuo Settlor and Trustee
• Original Assignee: Daisaku Yamada
• Inventors: Yamada, Daisaku
• Granted Patent: US 8,617,685 B2
• Time in Patent Office: Days
• US Class Current: 428/91
• CPC Class Codes: A47L 13/16 Cloths; Pads; Sponges metal scraping sponges A47L13/07
• CPC Class Codes: A47L 13/20 Mops
• CPC Class Codes: Y10T 428/23936 Differential pile length or surface
• CPC Class Codes: Y10T 428/2395 Nap type surface
• CPC Class Codes: Y10T 428/23957 Particular shape or structure of pile
• CPC Class Codes: Y10T 428/24273 including aperture
• CPC Class Codes: Y10T 428/24802 Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]

Abstract

Conventional cleaning sheets having brush parts provided on a surface of substratum sheet have been satisfactory in the trapping of dirt or dust at the brush parts but unsatisfactory in the trapping of dirt or dust at areas between brush parts where no brush is present. It is intended to provide a cleaning sheet with which any dirt or dust having sneaked through areas between brush parts and remaining untrapped can be trapped by brush parts provided in alternately positioning relationship adjacent to the brush parts, thereby attaining effective cleaning. The cleaning sheet comprises a sheet substratum and, disposed on at least one major surface thereof, multiple brush part lines each provided with multiple brush parts arranged intermittently along one direction of the sheet substratum, the multiple brush part lines arranged in a direction intersecting with the one direction, and that mutually adjacent brush part lines are provided so that the respective brush parts are alternately positioned.

Claims

1. A cleaning sheet comprising a sheet substrate and multiple brush part lines disposed on at least one surface of the sheet substrate, wherein each brush part line has multiple brush parts disposed intermittently along one direction of the sheet substrate, the multiple brush part lines are disposed in a direction intersecting with the direction, and the adjacent brush part lines are disposed so that the mutual brush parts are alternately positioned.

2. The cleaning sheet according to claim 1, wherein the sheet-like fibers are superposed on at least one surface of the sheet substrate;

disposing first seal part groups in which each group comprises multiple planar seal parts disposed intermittently along the fiber direction of the sheet-like fibers, and second seal part groups in which each group comprises planar seal parts disposed intermittently on the positions displaced from the planar seal parts of the first seal part groups in the direction along the fiber direction, in an alternate manner in a direction intersecting with the fiber direction of the sheet-like fibers to join the sheet substrate and the sheet-like fibers; and

cuts each having a width similar to or lower than the width of the planar seal part are provided between the planar seal parts in each seal part group to cut the fibers to form the brush parts around the planar seal parts.

3. The cleaning sheet according to claim 1, wherein the sheet-like fibers are superposed on at least one surface of the sheet substrate;

first seal part groups in which each group comprises multiple planar seal parts disposed intermittently along the fiber direction of the sheet-like fibers, and second seal part groups in which each group comprises planar seal parts disposed intermittently on the positions intersecting with the planar seal parts of the first seal part groups, are disposed in an alternate manner in a direction intersecting with the fiber direction of the sheet-like fibers to join the sheet substrate and the sheet-like fibers;

cuts each having a width similar to or lower than the width of the planar seal parts on the second seal part groups in which each group is interposed between the first seal part groups, are provided between the planar seal parts on the adjacent two first seal part groups by which the second seal part group is interposed, in a direction intersecting with the fiber direction of the seat-like fibers to cut the fibers to form the brush parts around the planar seal parts; and

cuts each having a width similar to or lower than the width of the planar seal parts on the first seal part groups in which each group is interposed between the second seal part groups, are provided between the planar seal parts on the adjacent two second seal part groups by which the first seal part group is interposed, in a direction intersecting with the fiber direction of the seat-like fibers to cut the fibers to form the brush parts around the planar seal parts.

4. The cleaning sheet according to claim 2, wherein the first seal part groups and the second seal part groups are disposed so that the planar seal parts on the first seal part groups and the planar seal parts on the second seal part groups are formed on the positions that are mutually partially overlapped on the upper and lower positions along the fiber direction of the sheet-like fibers.

5. The cleaning sheet according to claim 2, wherein the brush parts are formed bulky by raising the fibers in the brush parts after formation of the brush parts around the seal parts.

6. The cleaning sheet according to claim 2, wherein the sheet substrate and the sheet-like fibers are joined by disposing planar seal parts having different sizes.

7. The cleaning sheet according to claim 6, wherein the planar seal parts have different sizes in the direction along the fiber direction of the sheet-like fibers.

8. The cleaning sheet according to claim 6, wherein the planar seal parts have different sizes in the direction intersecting with the fiber direction of the sheet-like fibers.

9. The cleaning sheet according to claim 2, wherein the planar seal parts each has an oval shape.

10. The cleaning sheet according to claim 3, wherein the first seal part groups and the second seal part groups are disposed so that the planar seal parts on the first seal part groups and the planar seal parts on the second seal part groups are formed on the positions that are mutually partially overlapped on the upper and lower positions along the fiber direction of the sheet-like fibers.

11. The cleaning sheet according to claim 3, wherein the brush parts are formed bulky by raising the fibers in the brush parts after formation of the brush parts around the seal parts.

12. The cleaning sheet according to claim 3, wherein the sheet substrate and the sheet-like fibers are joined by disposing planar seal parts having different sizes.

13. The cleaning sheet according to claim 12, wherein the planar seal parts have different sizes in the direction along the fiber direction of the sheet-like fibers.

14. The cleaning sheet according to claim 12, wherein the planar seal parts have different sizes in the direction intersecting with the fiber direction of the sheet-like fibers.

15. The cleaning sheet according to claim 3, wherein the planar seal parts each has an oval shape.