Elastomeric Anti-Slip Strip with Protrusions for Diaper Stability
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Solution Overview
Problem
Disposable diapers often sag or experience movement at the ears due to inadequate attachment, leading to discomfort and potential leaks, which existing anti-slip technologies fail to fully address.
Innovation Solution
A laminated assembly comprising a support layer and an anti-slip strip made of elastomeric material with protruding elements, which reduces movement relative to a surface and enhances attachment by increasing pressure when stretched, utilizing materials like styrene-isoprene-styrene or thermoplastic elastomers for improved elasticity and skin compatibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If an anti-slip strip with protruding elements is used to reduce movement, then stability is improved, but attachment strength deteriorates
Solution Approach 1:
The anti-slip strip is segmented into a base layer and protruding elements that are integrally formed but functionally distinct. The protruding elements provide anti-slip functionality while the base provides attachment surface, allowing each segment to optimize its specific function without compromising the other.
Solution Approach 2:
The anti-slip strip uses composite construction with the base and protruding elements formed from elastomeric material that may differ in properties from the backing layer. This composite structure allows the anti-slip surface to have high friction characteristics while the attachment interface maintains bonding capability.
2Object-affected harmful factors
If elastomeric material is used for anti-slip strip, then comfort and skin compatibility are improved, but attachment strength deteriorates
Solution Approach 1:
The elastomeric material with soft, skin-friendly properties is applied locally to the anti-slip surface that contacts the diaper material, while the attachment interface maintains properties suitable for bonding. This localized application of different material qualities allows the anti-slip surface to be gentle on skin-compatible materials while the attachment zone maintains bonding strength.
Solution Approach 2:
The anti-slip strip acts as an intermediary element between the diaper components, providing a interface that is soft and compatible with diaper materials while maintaining sufficient attachment strength through its bonding to the backing layer. The elastomeric material mediates between the need for comfort and the need for attachment.
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
The laminated assembly provides enhanced stability and comfort by minimizing movement and leaks, while maintaining gentle touch and reducing skin sensitization through the use of elastomeric materials, ensuring effective attachment and prolonged use without significant deformation.
Implementation Method 1
Since the anti-slip strip is made of an elastomeric material, the anti-slip strip is elastic. The elasticity of the anti-slip strip provides elasticity to the laminate assembly.
Implementation Method 2
Thanks to the anti-slip strip, and in particular the protruding elements, when the laminated assembly is in contact with another surface, the displacement of this other surface relative to the anti-slip strip is reduced.
Data Source
Figure 1~2B
Figure 3~7
Figure 8A~8F
AI summary
The invention relates to a laminated assembly comprising a supporting layer (32) and a non-slip strip (34), the non-slip strip (34) comprising an elastomer material, the supporting layer (32) and the non-slip strip (34) being laminated together, the non-slip strip (34) comprising a base (34A) and a plurality of protruding elements (34B) extending away from the base (34A) and the plurality of protruding elements (34B) protruding from a face (30A) of the laminated assembly (30). The invention also relates to a nappy comprising such a laminated assembly (30) and to a method for manufacturing the laminated assembly (30). The invention also relates to a nappy comprising such an assembly and to a method for manufacturing such an assembly.