Looped Nonwoven Laminate With Segmented S-Shaped Calendering Islands
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Solution Overview
Problem
Existing laminates with S-shaped calendering islands in rows and columns provide a visual impression of softness but lack actual tactile softness while maintaining good coupling performance.
Innovation Solution
The laminate design features S-shaped calendering islands with symmetrical heads composed of two unsymmetrical sub-islands separated by an intermediate region, allowing for pathways in multiple directions without intersecting calendered regions, enhancing tactile softness without compromising coupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If S-shaped calendering islands in rows and columns are used, then visual impression of softness is improved, but actual tactile softness deteriorates
Solution Approach 1:
The calendering islands are segmented into two separate sub-islands (first sub-island and second sub-island) that are spaced apart from each other, rather than forming a continuous S-shaped island. This segmentation creates non-intersecting pathways between the sub-islands, allowing the loops to remain accessible and providing actual tactile softness while maintaining the visual pattern of rows and columns
Solution Approach 2:
The intermediate region is extracted from the continuous calendering island structure, creating a spaced-apart configuration where the first and second sub-islands are separated. This extraction removes the intersecting calendered regions that blocked the pathways, enabling tactile softness while preserving the visual arrangement
2Reliability
If continuous S-shaped calendering islands are used, then coupling performance is improved, but pathways across the laminate surface are blocked
Solution Approach 1:
The continuous calendering island is divided into discrete sub-islands spaced apart from each other. This segmentation maintains coupling performance at the bonded regions while creating open pathways through the intermediate regions where loops are not calendered, allowing hooks to access loops without obstruction
Solution Approach 2:
Different regions of the laminate have different properties: the sub-islands provide localized coupling performance where bonding is needed, while the intermediate regions provide open pathways where loop accessibility is needed. This local differentiation resolves the contradiction between coupling and pathway accessibility
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 laminate achieves a significantly softer touch sensation while maintaining effective coupling, with the islands arranged in rows and columns to create non-intersecting pathways for enhanced tactile experience.
Implementation Method 1
the two non-woven fabric components being fixed to one another by calendering
Implementation Method 2
an engraved roller to form the calendering islands during calendering
Data Source
AI summary
Laminate comprising a support component (1) in the form of a first layer of fibres and/or filaments, in particular a first non-woven fabric, and a component (2) with loops in the form of a second layer of fibres and/or filaments, in particular a second non-woven fabric with loops, the two components being fastened to one another, wherein the fastening causes so-called calendering islands (3, 3′) to appear on the external surface of the component with loops in the shape of an S with symmetrical heads, characterised in that each S-shaped island with symmetrical heads consists of two sub-islands (3A, 3B; 3′A, 3′B) forming opposite heads and an intermediate, non-fastened region (4; 4′) separating the two sub-islands forming opposite heads.