Pet Absorbent Article High Stiffness Portion Wrapping
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Solution Overview
Problem
Existing absorbent articles for pets with urethral openings positioned forward of the hind legs face challenges in coverage and leakage, and the wrapping process is complicated due to elastic members and the tendency of the first end portion to lift during application.
Innovation Solution
An absorbent article with a rectangular shape, featuring a top surface layer, a liquid-impermeable back surface layer, an absorbent core, and elastic members along the longitudinal direction, including a high stiffness portion in the first end portion and detachable attachment of the second end portion to the first, along with side sheets and a hook tape for secure wrapping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If elastic members are disposed in the side portion along the longitudinal direction to enable wrapping around the pet's waist, then the absorbent article can be extended and wrapped, but the first end portion is lifted during wrapping making it difficult to engage the outer face with the inner face
Solution Approach 1:
The patent changes the stiffness parameter of the first end portion by forming a high stiffness portion through heating or cooling treatment. This parameter change allows the first end portion to resist lifting during wrapping while still enabling engagement with the second end portion, resolving the contradiction between ease of wrapping and difficulty of engagement.
Solution Approach 2:
The patent applies local quality by creating a high stiffness portion specifically at the first end portion while maintaining flexibility in other areas. This localized stiffness modification allows the first end portion to remain stable during wrapping without preventing the overall flexibility needed for engagement.
2Ease of operation
If the absorbent article is strongly pulled to extend it around the pet's waist, then the wrapping is achieved, but the first end portion is more likely to lift
Solution Approach 1:
The patent changes the stiffness parameter of the first end portion through thermal treatment (heating or cooling). This parameter change enables the first end portion to maintain its position reliably during strong pulling operations for wrapping, preventing lifting while allowing the wrapping process to proceed.
3Reliability
If a disposable diaper for pet is used to cover the anus and urethral opening, then feces and urine are caught, but pets with forward-positioned urethral openings experience leakage
Solution Approach 1:
The patent transitions from a traditional diaper shape to a rectangular belt-like configuration that wraps around the pet's waist. This dimensional change allows the absorbent article to extend further forward to cover the urethral opening in pets with forward-positioned openings, eliminating leakage while maintaining feces and urine coverage.
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
Facilitates proper positioning and secure wrapping around the pet's waist, reducing leakage and simplifying the application process while maintaining flexibility and preventing unfastening during pet movement.
Implementation Method 1
an elastic member that is disposed along a longitudinal direction of the absorbent article for pet in a state of being extended
Implementation Method 2
a high stiffness portion that is higher in stiffness than the second end portion is formed in the first end portion
Implementation Method 3
an absorbent core disposed between the top surface layer and the back surface layer
Implementation Method 4
an absorbent core disposed between the top surface layer and the back surface layer
Implementation Method 5
a back surface layer that is liquid impermeable
Data Source
AI summary
An absorbent article for pet includes: a liquid permeable top surface layer; a liquid impermeable back surface layer; and an absorbent core disposed between the top and back surface layer, and configured in a rectangular shape with a first end portion and a second end portion facing each other and a pair of side portions facing each other, and in a state in which the absorbent article is wrapped around a waist of a pet, the first end portion is positioned on a pet's body side and the second end portion is detachably attached to an outer face of the first end portion, in which the absorbent article for pet further includes elastic members disposed along the longitudinal direction of the absorbent article in an extended state; and a high stiffness portion that is higher in stiffness than the second end portion is formed in the first end portion.