Fabric Case Anti-Soiling Structures for Dye and Sebum Contact
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Solution Overview
Problem
Fabric items used with electronic devices often suffer from soiling due to repeated contact with staining agents like dye, sweat, and sebum, leading to discoloration and wear.
Innovation Solution
Incorporating anti-soiling features such as raised lips, incompressible materials, edge piping, molded fabric, and internal frame members into fabric items to prevent staining agents from transferring onto the fabric.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fabric items are used with electronic devices for protection and personalization, then the aesthetic appeal and comfort are improved, but the fabric is prone to soiling and discoloration from repeated contact with staining agents
Solution Approach 1:
The patent introduces an anti-soiling coating as an intermediary layer between the fabric and staining agents. This coating acts as a mediator that prevents direct contact between dye, sweat, sebum, and the fabric, thereby maintaining the fabric's aesthetic appeal while protecting it from soiling.
Solution Approach 2:
The patent creates a composite structure by combining fabric with anti-soiling coating materials. This composite material retains the comfort and aesthetic properties of the fabric while adding stain-resistant characteristics, thus resolving the contradiction between aesthetic appeal and susceptibility to soiling.
2Reliability
If friction occurs between clothing and fabric case during normal use, then the protective function is maintained, but dye transfer and discoloration increase
Solution Approach 1:
The patent converts the harmful effect of friction into a beneficial outcome by applying anti-soiling coating. The coating allows friction to occur (maintaining protective function) while transforming the previously harmful dye transfer into a non-issue, as the coating prevents staining even during repeated rubbing.
3Ease of operation
If fabric items are exposed to sweat and sebum during extended wear, then the comfort and functionality are improved, but staining and wear increase
Solution Approach 1:
The anti-soiling coating serves as an intermediary barrier between sweat and sebum during extended wear and the fabric. This allows the fabric to maintain comfort and functionality while the coating prevents staining from bodily fluids.
Data Source
AI summary
A fabric item that comes into repeated contact with a staining agent may be provided with anti-soiling features to help prevent the staining agent from transferring to the fabric. The fabric item may be a case or strap for an electronic device or may be an integral portion of an electronic device. The anti-soiling features may include a raised lip of material having a higher elastic modulus than the fabric. The anti-soiling features may include an incompressible material (e.g., fused fabric, fabric impregnated with adhesive, or non-fabric materials such as metal or glass), edge piping, molded fabric, protruding ridges, stitches covered with welt, a recess that receives a cord of a removable strap, and/or compressible fabric regions. An internal frame member may protrude through the fabric or may press on an inner surface of the fabric to form anti-soiling features.