Disposable Absorbent Articles with Near-Full-Length Visual Signals
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing disposable absorbent articles struggle to provide a dimensionally robust visual signal that accurately communicates the extent of absorbent layers, leading to potential leakage and user anxiety, especially in thinner designs.
Innovation Solution
The absorbent articles feature a visual signal that extends a significant percentage of the overall length, with a difference in length between the article and signal less than 35 mm, and incorporate crimp seals with adhesive to ensure bond strength and minimize leakage, while using non-elasticized barrier cuffs to enhance protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the visual signal is printed on the absorbent layers inboard of the periphery, then the signal can be disposed several centimeters inboard both longitudinally and laterally, but this reduces the length of the visual signal and diminishes its ability to communicate the extent of the absorbent layers
Solution Approach 1:
The visual signal is extended laterally beyond the periphery of the absorbent article, utilizing the lateral dimension to compensate for longitudinal positioning constraints. This allows the signal to achieve greater overall length and visibility while maintaining proper inboard positioning relative to the absorbent core's functional boundaries.
Solution Approach 2:
The visual signal serves multiple functions: it indicates the longitudinal extent of the absorbent layers, provides lateral boundary information, and compensates for web tracking variations. By extending the signal laterally beyond the periphery, it becomes a more robust multi-dimensional indicator that fulfills multiple communication needs simultaneously.
2Length of stationary object
If printing is done on the topsheet to allow for a longer and possibly wider signal, then the visual signal length increases, but this creates a risk of ink bleeding onto the wearer's skin
Solution Approach 1:
The visual signal printing is extracted from the topsheet and relocated to the absorbent layers or backsheet. This separation removes the harmful effect of ink bleeding onto the wearer's skin while preserving the signal's informational function. The signal is 'taken out' from the direct contact surface and placed on a non-contact layer.
Solution Approach 2:
The absorbent layers or backsheet serve as an intermediary medium between the visual signal and the wearer's skin. By printing on these intermediate layers rather than the topsheet, the signal can be displayed prominently without creating direct contact between ink and skin, thus eliminating the bleeding risk while maintaining signal visibility.
3Reliability
If the absorbent layers are disposed inboard of the periphery to ensure minimal leakage, then leakage protection is improved, but the visual signal must be positioned inboard which reduces its length and dimensionality
Solution Approach 1:
The visual signal utilizes the lateral dimension beyond the periphery to achieve greater length and dimensionality. By extending laterally in addition to longitudinally, the signal compensates for the inboard positioning constraint while maintaining the absorbent layers' inboard disposition for leakage protection. This creates a three-dimensional signal structure that overcomes the two-dimensional limitation.
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
A disposable absorbent article is disclosed. The absorbent article has a longitudinal centerline and a lateral centerline generally perpendicular to the longitudinal centerline, first and second side edges and first and second end edges disposed at a first end and a second end of the absorbent article, respectively. The absorbent article has a topsheet; a backsheet; an absorbent system disposed between the topsheet and the backsheet. A visual signal visible from a wearer-facing surface, and wherein a difference between a length of the disposable absorbent article and a length of the visual signal is less than 35 mm.