Printed Tactile Tag for Front-Back Orientation in Diapers
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Solution Overview
Problem
Disposable absorbent articles, such as diapers and incontinence garments, often confuse users and caregivers regarding the front and back orientation, especially for individuals with poor vision, leading to improper fitting and absorption issues.
Innovation Solution
Incorporating a printed tag on the inner wearer-facing side of the chassis with surface roughness or friction differing by at least 10% from the surrounding area, attached to the elastic waistband or laminate, ensuring easy differentiation between the front and back portions, even in poor lighting conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a removable indicium is attached to the waistband for identifying front or back of the article, then the identification function is improved, but the label may come loose unintentionally before use or during use
Solution Approach 1:
The patent extracts the identification function from a removable label and integrates it directly into the chassis structure through printed tags. The front and back portions have distinct printed tags that are permanently formed as part of the chassis, eliminating the risk of label detachment while maintaining clear identification functionality.
Solution Approach 2:
The identification tags are merged with the chassis structure itself rather than being separate removable components. The printed tags are formed as integral parts of the front and back portions during manufacturing, combining the identification function with the structural elements of the absorbent article.
2Ease of operation
If the absorbent article is made to resemble regular underwear, then the appearance and user comfort are improved, but the differentiation between front and back becomes more difficult
Solution Approach 1:
The patent applies local quality by creating asymmetric printed tags with distinct characteristics on specific locations of the chassis. The front portion has a first printed tag with specific visual properties, while the back portion has a second printed tag with different visual properties, allowing clear differentiation in specific local areas without compromising the overall underwear-like appearance.
Solution Approach 2:
The patent employs asymmetry by designing the printed tags on the front and back portions to have different visual characteristics. This asymmetric design allows users to easily distinguish front from back while maintaining a natural, underwear-like appearance throughout the rest of the article.
3Stability of the object's composition
If the printed tag has the same surface properties as the surrounding chassis, then the appearance is more uniform, but the tactile differentiation between front and back is reduced
Solution Approach 1:
The patent applies local quality by giving the printed tags distinct surface properties compared to the surrounding chassis material. The tags have different surface roughness, friction, or texture characteristics in specific localized areas, enabling tactile differentiation while maintaining overall compositional stability and uniform appearance.
Data Source
AI summary
A disposable absorbent article intended to be worn around the waist of a wearer. The article includes a chassis having a front portion, a back portion, and a crotch portion there between, and optionally includes a waistband. A printed tag is arranged on the inner wearer facing side of the chassis in at least one of the front portion, back portion or the waistband. The tag has a Surface roughness or Friction according to Kawabata which differs at least 10% from the Surface roughness or Friction respectively according to Kawabata of the surrounding area of the chassis to which the tag is attached. This enhances the possibilities to localize the tag by the fingertips and thus make it possible for a person with poor eyesight and under bad light conditions to differentiate between the front and back of the article.