Hydrographics Ornamentation on Elastic Footwear Elements
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Solution Overview
Problem
Existing methods for applying ornamentation to foot engagement elements of flip-flop footwear fail to maintain integrity during extreme deformation and are prone to delamination, especially in harsh environmental conditions, leading to unsightly and premature discarding of footwear.
Innovation Solution
A highly flexible elastic foot engagement element formed from rubber or elastomeric materials, utilizing a hydrographics immersion printing process to apply a transfer pattern that covers the entire element, ensuring durability and aesthetic appeal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional ornamentation methods (adhesion, painting, mechanical means) are applied to elastic foot engagement elements, then branding and aesthetic appeal are provided, but the ornamentation integrity is compromised during extreme deformation and flexing
Solution Approach 1:
The ornamentation pattern is integrated directly into the elastomeric material during the molding process, combining the structural formation of the foot engagement element with the application of decorative patterns. This merging ensures the ornamentation becomes an intrinsic part of the material rather than a separate layer that can delaminate during flexing and deformation.
Solution Approach 2:
The ornamentation pattern is applied to the elastomeric material before the material is molded into the final foot engagement element shape. By preparing the patterned material in advance and then molding it, the ornamentation is locked into the material structure prior to deformation, preventing integrity loss during subsequent flexing and use.
2Reliability
If complex co-molding processes are used to integrate ornamentation into the elastic element, then ornamentation integrity is maintained, but manufacturing complexity and cost increase
Solution Approach 1:
The ornamentation pattern is applied to flat elastomeric material before molding, rather than attempting to mold the pattern directly into the three-dimensional element. This preliminary patterning step simplifies the molding process to a standard formation operation, avoiding complex co-molding techniques while still achieving integrated ornamentation that maintains integrity during flexing.
3Ease of manufacture
If ornamentation is applied to the surface of the elastic element, then aesthetic appeal is achieved, but the ornamentation is prone to delamination under harsh environmental conditions
Solution Approach 1:
The ornamentation pattern is applied to the elastomeric material before the material is molded and cured. This preliminary application ensures the pattern becomes embedded within the material structure during the molding process, creating a bond that cannot delaminate under environmental stress, while still maintaining full aesthetic appeal of the decorative design.
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 maintains ornamentation integrity during extreme flexing, resists UV degradation and water exposure, eliminates the need for complex co-molding processes, and provides design flexibility and cost-effectiveness, resulting in a long-lasting and aesthetically pleasing product.
Implementation Method 1
utilizing a hydrographics immersion printing process to apply a transfer pattern that covers the entire element
Implementation Method 2
resists UV degradation and water exposure
Data Source
Figure 1a~1b
Figure 1c
Figure 2a
AI summary
An elastic element of a footwear article having thereon a transfer pattern applied thereto by a pattern transfer process, wherein said elastic element is elongate and formed from a polymeric or rubberized material and is sized and arranged such that the elastic element is substantially flexible and elastic so as to allow for substantial flexion when in use and during ambulation of the person; and wherein said transfer pattern is maintained upon said flexing of said elastic element of said of said footwear article.