Pet Toilet Absorbent Sheet With Segmented Side Regions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing pet toilet absorbent sheets often experience displacement issues, leading to reduced absorption efficiency and potential leakage due to improper fitting within the pet toilet's sheet accommodating portion.
Innovation Solution
The absorbent sheet features a topsheet with varying fiber density and surface roughness, side regions that extend to fit along the bottom and side walls, and a folding design that increases rigidity, along with an antimicrobial component to prevent bacterial growth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the absorbent sheet is made larger to cover the bottom portion and side wall portions, then the fitting stability is improved, but the sheet may rise from the bottom portion causing displacement
Solution Approach 1:
The absorbent sheet is divided into a central region (containing the absorber) and side regions (extending along the side wall portions). This segmentation allows the side regions to fit into the spaces between the bottom portion and side wall portions, providing anchoring that prevents displacement while the central region maintains the absorption function.
Solution Approach 2:
The side regions extend in the vertical dimension along the side wall portions, creating a three-dimensional configuration that anchors the sheet in place. This vertical extension prevents the sheet from rising or shifting horizontally, solving the displacement problem while maintaining coverage.
2Stability of the object's composition
If the absorbent sheet is made smaller to fit within the bottom portion, then displacement is reduced, but the absorption capacity is reduced
Solution Approach 1:
The sheet is segmented into a central region for absorption and side regions for stabilization. The central region contains the absorber and is sized to provide adequate absorption capacity, while the side regions extend outward to fit along the side wall portions, preventing displacement without compromising the absorption area.
3Productivity
If the fiber density of the topsheet is increased to improve absorption, then the absorption efficiency is improved, but the surface roughness increases causing poor fitting
Solution Approach 1:
The topsheet has different fiber densities in different regions. The central region has higher fiber density for efficient absorption, while the side regions have lower fiber density providing a smoother surface that fits better along the side wall portions. This local quality variation allows both high absorption efficiency and good fitting.
Solution Approach 2:
The fiber density parameter is varied across different regions of the topsheet. By changing the fiber density from high in the central region to low in the side regions, the patent achieves both efficient absorption and smooth surface contact with the side wall portions, resolving the contradiction between absorption efficiency and fitting quality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design effectively suppresses displacement and enhances absorption efficiency by ensuring a secure fit and quick fluid absorption, while also inhibiting bacterial growth.
Implementation Method 1
an absorber provided between the topsheet and the backsheet
Implementation Method 2
a topsheet arranged on a top side of the absorbent sheet and having fibers; A fiber density of a region on a side of the first surface in the topsheet is lower than a fiber density of a region on a side of the second surface in the topsheet
Data Source
Figure 1(A)~1(B)
Figure 2
Figure 3
AI summary
An absorbent sheet (10) for pets is used for a pet toilet (100). The pet toilet including a sheet accommodating portion (110) configured to accommodate the absorbent sheet in a space surrounded by a bottom portion (111) and side wall portions (112) standing from the bottom portion, and an excretion receiving portion (101) configured to receive excretions above the sheet accommodating portion. The absorbent sheet includes a topsheet (12) arranged on a top side of the absorbent sheet and having fibers, a backsheet (14) arranged on a back side of the absorbent sheet, an absorber (20) provided between the topsheet and the backsheet, a central region (CR) in which the absorber is arranged in plan view, and side regions (SR) which extend outside the central region and in which at least the topsheet is arranged. The topsheet has a first surface (121) and a second surface (122) opposite to the first surface. A fiber density of a region on a side of the first surface in the topsheet is lower than a fiber density of a region on a side of the second surface in the topsheet. A surface roughness of the first surface of the topsheet is higher than a surface roughness of the second surface of the topsheet.