Diamond Art Canvas Backing Layer for Rollable Flat Storage
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Solution Overview
Problem
Diamond art canvases tend to wrinkle and curl during storage and use due to their layered structure, making them difficult to maintain a flat configuration.
Innovation Solution
A backing layer composed of fibers entrained in an adhesive, with a tensile strength between 700-2000 MPa and a Young's modulus between 15-45 GPa, is applied to the canvas to urge it towards a lying-flat disposition, resisting curling and wrinkling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the canvas is made flexible to allow rolling for storage, then ease of storage and shipping is improved, but the canvas tends to wrinkle and curl when unrolled
Solution Approach 1:
The patent applies a backing layer with specific mechanical properties (tensile strength 700-2000 MPa, Young's modulus 15-45 GPa) to change the physical parameters of the canvas structure. This backing layer provides sufficient rigidity to maintain flatness when unrolled while still allowing the canvas to be rolled for storage, resolving the contradiction between flexibility for storage and rigidity for flatness.
Solution Approach 2:
The patent creates a composite structure by applying a backing layer composed of fibers entrained in adhesive onto the canvas substrate. This composite material combines the flexibility needed for rolling with the structural support required to prevent wrinkling and curling, simultaneously achieving both ease of storage and maintenance of flatness.
2Strength
If multiple layers are added to improve canvas structure, then strength and flatness are improved, but device complexity increases
Solution Approach 1:
The patent segments the canvas structure into distinct functional layers: the original substrate with print layer and adhesive, and the added backing layer with specific fiber-adhesive composition. This segmentation allows each layer to perform its specific function while maintaining overall structural integrity, improving strength without excessive complexity.
Solution Approach 2:
The backing layer is applied specifically to the back side of the canvas where structural support is needed, while the front side maintains its original properties for diamond placement. This local application of enhanced structure provides necessary strength where required without unnecessarily complicating the entire canvas structure.
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 backing layer ensures the canvas remains flat and unwrinkled after unrolling from storage, enhancing the usability and aesthetic appeal of diamond painting.
Implementation Method 1
The fibers have a tensile strength between about 700-2000 MPa and a Young's modulus between about 15-45 GPa. The backing layer is configured so that an at-rest condition of the fibers in the backing layer is generally planar. When the diamond canvas is rolled up and placed in a tube for shipping, the fibers will bend. When the diamond canvas is taken out of tube, the fibers will urge the diamond canvas back to the flat configuration
Data Source
AI summary
A diamond art kit includes a diamond art canvas which includes a substrate upon which an image is printed. A layer of adhesive is applied above the image, and a protective film (which can have perforated tear lines) releasably covers the adhesive. The substrate includes a textile layer that can be sealed by front and back sealing layers. A backing layer can be applied to the back sealing layer. The backing layer can be configured with fibers that are sufficiently flexible to allow the diamond art canvas to be rolled and placed within a tube for storage and shipping, but also has sufficient tensile strength to urge the diamond art canvas toward laying flat when unrolled.