Absorbent Article Binding Point Arrangement for Printing Integrity
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Solution Overview
Problem
Disposable absorbent articles face interference between large binding points and visible color printing patterns, affecting the visual appearance and perceived leakage security, particularly in the center portion where absorption capacity is crucial.
Innovation Solution
The absorbent article features a color printing pattern with continuous regions free from large binding points, using a combination of large and small binding points strategically arranged to avoid interference, with small binding points in discontinuous regions and large binding points in the center for enhanced absorption perception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If large binding points are used to indicate high absorption capacity and provide leakage security, then the perceived leakage security is improved, but the visual appearance of the printing pattern is degraded
Solution Approach 1:
The patent applies local quality by using different binding point sizes in different regions of the absorbent article. Large binding points (surface area >2.5 mm²) are placed in the center portion to provide perceived leakage security, while small binding points (surface area 0.01-2.5 mm²) are used in the front and rear portions to preserve the visual appearance of printing patterns. This spatial differentiation resolves the contradiction by optimizing each region for its specific function.
2Reliability
If large binding points are used in the center portion to enhance absorption perception, then the perceived absorption capacity is improved, but the interference with continuous coloured regions increases
Solution Approach 1:
The patent differentiates the center portion from front and rear portions by using large binding points exclusively in the center portion where continuous coloured regions are absent. This allows the center portion to convey high absorption capacity while maintaining printing pattern integrity in areas where continuous coloured regions exist.
Solution Approach 2:
The patent uses small binding points in front and rear portions that visually resemble the continuous coloured regions, creating a consistent visual appearance. This copying approach allows the binding points to serve their structural function while maintaining the aesthetic quality of the printing pattern.
3Shape
If small binding points are used throughout to preserve printing pattern appearance, then the visual appearance is improved, but the perceived leakage security is reduced
Solution Approach 1:
The patent strategically places large binding points in the center portion of the absorbent article, which is the region most associated with absorption function. This localized use of large binding points provides perceived leakage security where it is most needed while preserving the visual appearance in front and rear portions.
Data Source
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AI summary
The disclosure concerns an absorbent article(1), such as an incontinent shield, sanitary napkin, panty liner, open-type diaper, pant-type diaper, or the like, having a longitudinal direction(x)and a transverse direction(y). The absorbent article(1)comprises a front portion(3),a rear portion(4), a centre portion(5)located between and bordering to the front and rear portions(3, 4), and a liquid pervious topsheet (10)bonded to an underlying layer by means of a plurality of large and small binding points(16, 17). The small binding points(17)have a surface area in the range of 0.01 –2.5 square millimetres and the large binding points(16)have a surface area above 2.5 square millimetres. A colour printing pattern is visible on a topsheet side of the absorbent article(1). All printed surface area of the colour printing pattern onto which a disc with a diameter of 1.5 millimetres can be mapped without extending beyond a periphery of the printed surface area defines one or more continuous coloured regions(20), and each continuous coloured region (20)within at least the centre portion(5)of the absorbent article(1)is substantially free from large binding points(16).The disclosure also concerns a method for manufacturing a corresponding absorbent article (1).