Discoloring body having glossiness
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Solution Overview
Problem
Existing discolorable laminates struggle to achieve both high glossiness and durability against scratching, while maintaining enjoyable color change upon water adhesion.
Innovation Solution
A discoloring body structure comprising a supporting body, a porous layer with low refractive index pigment, and a glossy resin layer (either brilliant or translucent) with an occupancy area ratio of 1% to 95% covers the porous layer, enhancing glossiness and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a porous layer is located on the surface to enable color change, then concealability in dry state and transparency in liquid absorption state are improved, but glossiness is deteriorated
Solution Approach 1:
The invention divides the surface layer into multiple functional components: a porous layer for color change functionality and a glossy resin layer for surface gloss. This segmentation allows each layer to perform its specific function independently, resolving the contradiction between color change capability and glossiness.
Solution Approach 2:
The invention uses a composite structure combining a porous layer (containing low refractive index pigment and binder resin) with a glossy resin layer. This composite material approach enables the simultaneous achievement of color change properties from the porous layer and glossiness from the resin layer, eliminating the trade-off between these properties.
2Illumination intensity
If brilliant fine pieces are fixed on the porous layer to enhance brilliance, then visual brilliance is improved, but durability against peeling and uniformity of brilliance are deteriorated
Solution Approach 1:
The invention replaces the use of brilliant fine pieces (which are prone to peeling) with a glossy resin layer that provides equivalent or superior brilliance without the durability issues. The resin layer is integrated into the structure and cannot peel off like separate fine pieces.
Solution Approach 2:
The glossy resin layer acts as a continuous thin film that provides uniform brilliance across the surface. Unlike discrete brilliant fine pieces, this continuous film ensures uniform optical properties and maintains durability while achieving the desired brilliance effect.
3Illumination intensity
If brilliant fine pieces are used to achieve brilliance, then visual recognition of brilliance is improved, but uniform brilliance of the surface is deteriorated due to overlapping
Solution Approach 1:
The glossy resin layer provides homogeneous distribution of brilliance across the entire surface. Unlike brilliant fine pieces that create non-uniform appearance due to overlapping and spacing variations, the resin layer ensures consistent optical properties throughout, achieving uniform brilliance without manufacturing precision issues.
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 glossiness and durability against finger scratching, allowing for repeated color changes with water adhesion, and is applicable in various fields such as toys, decorations, and design.
Implementation Method 1
This porous layer is made transparent by absorbing liquid such as water
Implementation Method 2
a porous layer in which a low refractive index pigment is fixed in a dispersed state with a binder resin
Data Source
AI summary
[Problems] Provided is a discoloring body which is discolored by application of water and has high glossiness and is excellent in applicability to various fields such as a toy field, a decoration field, and a design field.[Solution] A discoloring body including a supporting body, a porous layer in which a low refractive index pigment is fixed in a dispersed state by way of a binder resin, and a glossy resin layer, in which an occupancy area ratio of the glossy resin layer is 1% to 95% with respect to a 1 cm square at any position in the porous layer.