Multi-Layer Blanket with Adhesive Scrim to Prevent Layer Separation
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Solution Overview
Problem
Waterproof blankets often lack comfort due to layer separation and durability issues caused by relative movement between layers, and they may not provide a sufficient moisture barrier.
Innovation Solution
A blanket design featuring a fabric layer, a waterproof base layer with adhesive scrim in between, and an insulation layer, stitched together with a quilted pattern, and attached using specific stitching methods to prevent layer separation, along with utility loops for added functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a waterproof layer is added to the blanket, then moisture barrier protection is improved, but comfort deteriorates due to layer separation and relative movement between layers
Solution Approach 1:
An adhesive scrim layer is introduced as an intermediary between the fabric layer and the waterproof base layer. This adhesive scrim prevents relative movement and separation between layers while maintaining the waterproof barrier functionality, thereby resolving the contradiction between moisture protection and comfort
Solution Approach 2:
The blanket employs a composite multi-layer construction consisting of a fabric layer, an adhesive scrim layer, an insulation layer, and a waterproof base layer. This composite structure integrates the benefits of each material while the adhesive scrim ensures cohesive bonding, preventing layer separation and improving overall comfort without compromising waterproof performance
2Reliability
If multiple layers are constructed in the blanket, then insulation and waterproofing are improved, but durability deteriorates due to layer separation and relative movement
Solution Approach 1:
The adhesive scrim acts as a bonding intermediary that mechanically and adhesively connects the fabric layer to the waterproof base layer, preventing relative movement and separation. This resolves the durability issue while preserving the multi-layer insulation and waterproofing structure
Solution Approach 2:
The adhesive scrim merges the fabric layer and the waterproof base layer into a cohesive unit, eliminating the harmful relative movement between layers. This combining approach maintains the functional benefits of separate layers while ensuring their structural integration for improved durability
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 solution provides a comfortable, durable, and effective waterproof barrier with enhanced interlayer strength and peel strength, preventing layer separation under tensile and shear forces, while maintaining the benefits of multi-layer construction.
Implementation Method 1
an adhesive scrim layer positioned between the fabric layer and the base layer
Implementation Method 2
a base layer comprising a waterproof layer connected the fabric layer
Data Source
AI summary
A blanket formed from multiple layers including a fabric layer on the top and a base layer on the bottom where the base layer may include a waterproof coating on at least one side. The blanket may also include an insulation layer and an adhesive scrim layer positioned between the fabric layer and the base layer. The layers of the blanket may be attached using a combination of stitching along with an adhesive to form a blanket that is waterproof and is secured together such that the fabric layer does not move relative to the base layer.