Heat-resistant glass
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Solution Overview
Problem
Conventional methods for forming heat-resistant glass top plates for cookers struggle to achieve both thermal resistance and a pattern with depth and texture, particularly in designs like wood grain patterns.
Innovation Solution
A heat-resistant glass with a transparent substrate and a design layer comprising a first layer with sparse and dense regions, each containing inorganic or metallic pigments dispersed in a glass or resin matrix, where the first and second layers have different hues, and optionally a coating layer for enhanced hideability and pattern depth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a transfer paper method is used to form a design layer, then it is easy to manufacture, but the thermal resistance is insufficient and the pattern lacks depth and texture
Solution Approach 1:
The design layer is formed as a composite structure with a first layer containing inorganic or metallic pigments dispersed in a glass matrix or resin binder, and a second layer covering the first layer. This composite material structure provides both the required thermal resistance for cooker top plate applications and the pattern depth and texture that were missing in conventional transfer paper methods.
Solution Approach 2:
The invention changes the material parameters of the design layer by using inorganic or metallic pigments dispersed in a glass matrix or resin binder, rather than conventional organic dyes. This parameter change enables the design layer to withstand high temperatures while maintaining pattern quality, resolving the contradiction between thermal resistance and pattern depth.
2Ease of manufacture
If a metallic luster layer or coating film is formed on the underside of the glass substrate, then the internal structure is hidden, but the pattern depth and texture are compromised
Solution Approach 1:
Instead of forming the design layer on the underside of the glass substrate (conventional approach), the invention forms the design layer on the upper surface. The pattern is made visible by viewing through the transparent glass substrate from the opposite side. This dimensional change allows the pattern to exhibit depth and texture while maintaining ease of manufacture and adequate hideability.
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 enables the creation of heat-resistant glass top plates that can display patterns with depth and texture, such as wood grain or hairline designs, while maintaining thermal resistance, which was not achievable with previous technologies.
Implementation Method 1
the first layer and the second layer contain each an inorganic pigment or a metallic pigment dispersed in a glass matrix serving as a binder, or wherein the first layer and the second layer contain each an inorganic pigment or a metallic pigment dispersed in a resin binder
Data Source
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AI summary
Provided is a heat-resistant glass which has a thermal resistance enabling the use thereof as a top plate for a cooker and on which a pattern with depth and texture can be formed. A heat-resistant glass 10 includes a transparent glass substrate 1 and a design layer 13 provided on one principal surface 1a of two principal surfaces of the transparent glass substrate 1, the design layer 13 having a pattern visible when viewed through the other principal surface 1b of the transparent glass substrate 1, wherein the design layer 13 includes: a first layer 11 provided on the one principal surface 1a of the transparent glass substrate 1 and having a sparse region and a dense region each formed according to the pattern; and a second layer 12 provided uniformly to cover the first layer 11.