Veneer Bleaching Pattern for Decorative Molded Parts
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Solution Overview
Problem
Existing methods for producing decorative molded parts using veneers lack the ability to vary the design statement effectively, as they typically involve uniform bleaching and post-treatment processes that result in a harmonious but unvaried aesthetic appearance.
Innovation Solution
A method where the visible side of the veneer is bleached differently to create a bleaching pattern, allowing for varying bleaching intensities and patterns through stepwise or continuous immersion in a bleaching medium, with optional masking to protect specific surface segments, resulting in a unique aesthetic effect that influences subsequent coloring and coating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If uniform bleaching is applied to the veneer surface, then a harmonious overall appearance is achieved, but the design variation and aesthetic expression are limited
Solution Approach 1:
The patent applies different bleaching intensities to different regions of the veneer surface by controlling the immersion time of specific surface segments in the bleaching medium. This creates localized variations in color and grain contrast, enabling diverse design expressions while maintaining a systematic manufacturing approach through controlled differential treatment.
2Illumination intensity
If the veneer is heavily bleached to enhance grain contrast and color radiance, then the aesthetic effect is improved, but the natural wood colorants are excessively removed which may weaken the material's inherent characteristics
Solution Approach 1:
The patent applies bleaching selectively to specific surface segments rather than uniformly across the entire veneer. By controlling the immersion time and spatial distribution of the bleaching medium, it achieves enhanced grain contrast and color radiance in targeted areas while preserving natural colorants in other regions, thus avoiding excessive removal of wood colorants.
3Manufacturing precision
If multiple bleaching cycles are performed to create complex patterns, then the design precision is improved, but the production time and process complexity increase
Solution Approach 1:
The patent divides the veneer surface into multiple segments that are selectively immersed in the bleaching medium during different cycles. This segmentation approach allows complex patterns to be built up systematically through controlled differential treatment of specific regions, achieving high pattern precision while maintaining manageable process complexity through structured repetition.
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
This approach enables a greater variety in the design of decorative molded parts by creating distinct bleaching patterns that enhance the natural grain contrast and color radiance, ensuring the bleached wood surface defines the aesthetic appearance, even after additional coloring or coating.
Implementation Method 1
bleaching is also carried out with the aim of removing all or part of the natural wood colorants from the veneer
Data Source
AI summary
Method for producing a decorative molded part, in which a veneer is joined to a substrate on its rear side opposite a visible surface of the veneer, and in which the visible surface of the veneer is bleached differently to produce a bleaching pattern.