Removable Absorbent Liner for Reusable Undergarments
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Solution Overview
Problem
Existing solutions for managing menstrual and incontinence-related discharges, such as disposable products and leakproof panties, are inconvenient due to the need for complete removal and replacement, leading to environmental pollution and discomfort, and often require additional add-ons that compromise fit and hygiene.
Innovation Solution
A reusable undergarment with a removable fabric liner utilizing a hook-and-loop fastener-like mechanism, where the absorbent liner adheres to the undergarment using woven fabrics with fuzz structures, eliminating the need for additional attachments and allowing easy replacement without disturbing the outerwear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If disposable products are used to manage discharges, then absorption function is provided, but environmental pollution increases and convenience decreases due to frequent replacement
Solution Approach 1:
The undergarment is divided into two separable parts: the reusable outer garment and the removable absorbent liner. This segmentation allows the liner to be easily detached and replaced without removing the entire undergarment, reducing waste from disposable products while maintaining convenience for frequent replacements.
Solution Approach 2:
The absorbent liner is designed to be discarded after use and replaced with a fresh one, while the outer garment is recovered and reused. This approach reduces environmental pollution from disposable products while maintaining the convenience of frequent replacements through a simple attach-detach mechanism.
2Stability of the object's composition
If the absorbent area is sewn directly into the panty, then the absorbent layer is securely attached, but the entire panty must be removed to replace the absorbent area
Solution Approach 1:
The absorbent liner is segmented from the outer garment as a separate, removable component. It attaches to the crotch area through adhesive or fastening mechanisms but can be easily detached and replaced without removing the entire undergarment, thus maintaining secure attachment during use while enabling convenient replacement.
Solution Approach 2:
The absorbent liner is extracted from the permanent structure of the undergarment and made into a removable insert. This allows the liner to be taken out and replaced independently, solving the problem of having to remove the entire panty for replacement while maintaining secure attachment during wear.
3Stability of the object's composition
If additional add-ons such as glue or buttons are used to attach the fabric pad, then the pad can be secured to the underwear, but comfort decreases due to additional components
Solution Approach 1:
The fastening mechanism is merged into the structure of the absorbent liner itself, with adhesive layers or integrated fasteners built into the liner's construction. This eliminates the need for separate, visible add-ons that would compromise comfort, while still providing secure attachment to the outer garment.
Solution Approach 2:
The adhesive or fastening properties are applied locally to specific areas of the absorbent liner (such as the edges or specific attachment zones) rather than requiring comprehensive fastening components across the entire pad. This provides sufficient security for attachment while minimizing the presence of additional components that would affect comfort.
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
This solution provides a convenient, comfortable, and eco-friendly way to manage liquid discharges by allowing the absorbent liner to be easily removed and replaced, reducing waste and the need for additional fastening components, while maintaining a secure and leak-resistant fit.
Implementation Method 1
The second fuzz structure of the absorbent liner removably engages with the first fuzz structure of the clothing to make the absorbent liner removably adhere to the crotch portion of the clothing
Implementation Method 2
use fabric's natural resistance to lock the liner pad with the undergarment fabric
Implementation Method 3
The absorbent liner is configured to absorb period blood, bladder leaks, and pregnancy leaks or bodily discharge
Data Source
AI summary
An undergarment for covering a lower trunk has a clothing and an absorbent liner. The clothing is configured to cover the lower trunk and has a first adhering layer formed on a crotch portion of the clothing. The absorbent liner removably adheres to the crotch portion of the clothing and is configured to be disposed between the clothing and the lower trunk. The absorbent liner has a second adhering layer and a skin-contacting layer. The second adhering layer removably adheres to the first adhering layer of the clothing, and the skin-contacting layer is configured to contact crotch of the lower trunk directly. When the absorbent liner becomes full, only the absorbent liner itself has to be replaced, making the undergarment more convenient to use.