Self-Adhesive Leather Patch with Debossed Edges to Reduce Peeling
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Solution Overview
Problem
Existing self-adhesive patches for furniture upholstery are prone to peeling, especially at the edges, due to their design and adhesive properties, which can lead to aesthetic issues and reduced durability.
Innovation Solution
A self-adhesive patch design featuring a thinner peripheral region compared to the main body region, with the peripheral region being denser and debossed, creating a step that deflects objects and reduces the likelihood of peeling, while using a high-strength acrylic adhesive for secure bonding to upholstery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the patch has a uniform thickness across the entire surface, then the main body region provides sufficient structural integrity and adhesion strength, but the peripheral edges are prone to peeling and catching on objects
Solution Approach 1:
The patent applies local quality by creating a peripheral region with different thickness properties than the main body region. The peripheral region is made thinner (0.5-1.0mm) compared to the main body (1.0-1.2mm) to reduce peeling and catching, while maintaining adequate thickness in the central area for structural integrity and adhesion strength.
Solution Approach 2:
The patent introduces a dimensional variation in the thickness parameter across the patch surface. By creating a stepped profile where the peripheral region is thinner than the main body region, the solution addresses both the peeling resistance and edge durability requirements through geometric modification.
2Reliability
If the peripheral region is made thinner to reduce peeling, then the patch creates a seamless attachment and minimizes visibility, but the peripheral region becomes more susceptible to damage
Solution Approach 1:
The patent changes the density parameter of the peripheral region material to compensate for the reduced thickness. By increasing the density of the peripheral region, the patch maintains adequate strength and damage resistance despite the thinner profile, while still achieving the desired peel resistance and seamless appearance.
3Strength
If the patch material is made denser to increase durability, then the peripheral region becomes more resistant to damage, but the patch becomes more visible and less seamless
Solution Approach 1:
The patent applies local quality by creating a peripheral region with different density properties than the main body region. The peripheral region is made denser to compensate for its thinner profile and provide adequate strength, while the main body region maintains its original density for optimal adhesion and appearance.
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 patch achieves a seamless attachment, minimizes visibility, and provides a neat finish, while maintaining strong adhesion to furniture even under body heat, reducing the likelihood of peeling and enhancing durability.
Implementation Method 1
an adhesive backing on the reverse side wherein the adhesive backing is adapted to bond to furniture upholstery and the like
Data Source
AI summary
A self-adhesive patch formed of leather, bonded leather or synthetic leather for application to furniture, garments and luggage is provided with a debossed peripheral region which is coplanar with the reverse side of the patch and denser than the remainder of the patch. When applied, the edge of the patch is therefore lower than the main body of the patch and less likely to be unpeeled from the item to which it is attached.