Pet Absorbent Sheet Uniform Basis Weight Design
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Solution Overview
Problem
Existing absorbent sheets for pets face issues with uneven distribution and excessive diffusion of pet excrement, leading to localized concentration and reduced usability over multiple excretions.
Innovation Solution
A pet absorbent sheet with a non-embossed absorber layer having a uniform basis weight, featuring a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber with a hydrophilic fiber and resin layer configuration, bonded via adhesive, to prevent excessive diffusion and ensure balanced excrement absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If embossing is used to promote diffusion of excrement in the surface direction, then excrement diffusion is improved, but local concentration of excrement occurs and pets avoid using the same absorbent sheet again
Solution Approach 1:
The invention changes the basis weight parameter of the absorber from non-uniform (embossed) to uniform (non-embossed), creating a balanced absorption capability across the entire surface. This prevents both local concentration and excessive diffusion, allowing pets to continue using the same absorbent sheet multiple times.
2Quantity of substance
If embossed region with high basis weight is created, then excrement diffusion is promoted, but excessive diffusion occurs beyond the intended absorbing area
Solution Approach 1:
The invention applies homogeneity by maintaining a uniform basis weight throughout the absorber without embossed regions. This ensures consistent absorption properties across the entire surface, preventing excrement from diffusing beyond the intended absorbing area while still achieving adequate distribution.
3Quantity of substance
If embossing is used to prevent local concentration of excrement, then absorption balance is improved, but the absorbent sheet becomes less effective for multiple excretions
Solution Approach 1:
The invention changes the basis weight parameter from non-uniform (embossed) to uniform (non-embossed) throughout the absorber. This creates optimal absorption balance that prevents both local concentration and excessive diffusion, thereby extending the service life of the absorbent sheet for multiple pet excretions.
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 solution effectively absorbs excrement without excessive diffusion, ensuring the absorbent sheet remains usable for multiple excretions by maintaining a uniform basis weight and secure bonding of the absorber layers.
Implementation Method 1
at least one of the top side covering sheet and the back side covering sheet is bonded all over the absorbent layer via an adhesive
Implementation Method 2
the absorbent layer includes a first absorbent layer having hydrophilic fibers and a second absorbent layer having hydrophilic resin
Implementation Method 3
a first absorbent layer having hydrophilic fibers
Data Source
AI summary
An absorbent sheet for pets, having a fluid-permeable surface sheet that receives pet excrement, a fluid-impermeable rear sheet, and an absorbent body that absorbs fluid that has penetrated the surface sheet. The surface sheet is configured so as to receive pet excrement, in a state in which the rear sheet is placed in a placement location; the absorbent body is configured as a non-embossed area having a surface-side covered sheet, a rear-side covered sheet, and an absorbent layer; a main absorbent section for excrement is provided in the center area of the absorbent body; and the basis weight in at least the main absorbent area in the absorbent body is set so as to be substantially uniform at a prescribed value.