Diaper Wetness Indicator Layout Around a Longitudinal Channel
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Solution Overview
Problem
Existing hygiene products face challenges in the reliability of indicator strips, which can prematurely or delayedly indicate liquid absorption, leading to inconsistent display of fluid absorption.
Innovation Solution
The indicator comprises two strips positioned on opposite sides of the longitudinal channel, aligned with absorbent sections, ensuring reliable liquid distribution and timely indication by avoiding premature or delayed signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If one indicator strip is positioned centrally along the longitudinal channel, then the indicator structure is simple, but the indication reliability deteriorates due to premature or delayed signals
Solution Approach 1:
The single central indicator strip is divided into two separate indicator strips positioned on opposite sides of the longitudinal channel. Each strip is assigned to a specific absorption section (first absorption section and second absorption section), allowing independent monitoring of liquid absorption in different regions. This segmentation resolves the contradiction by maintaining structural simplicity while improving indication reliability through distributed sensing.
2Device complexity
If the indicator strip is positioned centrally along the longitudinal axis, then the indicator structure is simple, but the measurement precision deteriorates due to inconsistent liquid absorption detection
Solution Approach 1:
The indicator strips are positioned in specific local regions (opposite sides of the longitudinal channel, each assigned to a specific absorption section) rather than centrally. This allows each indicator strip to monitor liquid absorption characteristics specific to its local absorption section, improving measurement precision by capturing regional variations in liquid distribution that a central position would miss.
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 design enhances the reliability of the indicator by accurately reflecting liquid absorption, preventing false indications and ensuring timely replacement of hygiene products.
Implementation Method 1
the absorbent layer allows the core to absorb a relatively large amount of fluid
Implementation Method 2
the indicator comprises two indicator strips... This design enhances the reliability of the indicator by accurately reflecting liquid absorption
Data Source
Figure 1
Figure 2a~2c
Figure 3
AI summary
The invention relates to a hygiene article, in particular a diaper, wherein the hygiene article (1) has an absorbent core (2) for absorbing liquid and an indicator (9) for indicating liquid absorbed by the absorbent core (2), wherein the absorbent core (2) has a body-side cover sheet (3), a back sheet (4) away from the body and a layer with absorbent material (5), preferably comprising superabsorbents, arranged between the cover sheet (3) and the back sheet (4), wherein the absorbent core (2) has a longitudinal channel (6), wherein the longitudinal channel (6) extends at least partially centrally along the longitudinal axis (7) of the absorbent core (2), wherein the longitudinal channel (6) divides the layer with absorbent material (5) into two absorbent sections (8) such that one of the absorbent sections (8) is arranged on the left and one of the absorbent sections (8) on the right side opposite the longitudinal channel (6).It is proposed that the indicator (9) comprises two indicator strips (11) and that one of the indicator strips (11) is arranged on the left and one of the indicator strips (11) on the right side of the longitudinal channel (6) and is assigned to the respective suction sections (8).