IP Library Granted Patent US 7,493,870
Granted Patent B2
US 7,493,870 · App. 11/328,746 · Granted Feb 24, 2009

Pet waste absorption sheet and process for manufacturing the same

Assignee: Uni-Charm Petcare Corporation
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Quick Facts
Patent No.
US 7,493,870
App. No.
11/328,746
Granted
Feb 24, 2009
Kind
B2
Abstract

A pet waste absorption sheet includes: a liquid-impermeable backsheet; a liquid-permeable topsheet; and an absorbent core disposed between the backsheet and the topsheet. The topsheet has a chemical solution containing at least one component selected from the group consisting of perfume, deodorant, and sterilant.

Claims (12)

1. A pet waste absorption sheet comprising:

a liquid-impermeable backsheet;

a liquid-permeable topsheet; and

an absorbent core disposed between the backsheet and the topsheet, the topsheet having a chemical solution containing at least one component selected from the group consisting of perfume, deodorant, and sterilant, wherein

the topsheet is a nonwoven fabric impregnated with the chemical solution,

the pet waste absorption sheet is folded for packaging such that at least a first portion of the topsheet is folded upon itself,

the chemical solution is directly applied in a strip to the first portion of the topsheet in a first region only which is parallel to and laterally displaced to a single side of a longitudinal centerline of the pet waste absorption sheet, the strip further being disposed between a first fold line created by folding the first portion of the topsheet upon itself and a first lateral edge of the pet waste absorption sheet, such that the strip is positioned between confronting faces of the first portion of the topsheet when the first portion of the topsheet is folded upon itself, and

a second portion of the topsheet is folded upon the backsheet along a second fold line and is free of the chemical solution.

2. The pet waste absorption sheet of claim 1 , wherein the topsheet is a resin film formed with apertures for passage of liquid.

3. The pet waste absorption sheet of claim 1 , wherein a portion of the chemical solution in the strip positioned between confronting faces of the first portion of the topsheet is transferred to a second region positioned between the first fold line and a second fold line created by folding the second portion of the topsheet upon the backsheet.

4. The pet waste absorption sheet of claim 1 , wherein the pet waste absorption sheet before folding is rectangular, and the strip is parallel to a longest side edge of the rectangular sheet.

5. The pet waste absorption sheet of claim 3 , wherein the pet waste absorption sheet is further folded along a third fold line that is parallel to a shortest side edge of the rectangular sheet.

Assignments (2)
MERGER Recorded Oct 20, 2010
From: UNI-CHARM PETCARE CORPORATION
To: UNI-CHARM CORPORATION
Reel/Frame 025161/0479 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 9, 2006
From: TAKAHASHI, MASAYUKI; KANEKO, SHINYA; IKEGAMI, TAKESHI
To: UNI-CHARM PETCARE CORPORATION
Reel/Frame 017465/0549 →
Priority Claims (1)
JP 2005-056441 · Mar 1, 2005 · national
Continuity (1)
Related Publication 20060200105A1 · Sep 7, 2006