Anti-Slip Porcelain Tile Enamel with Embedded Micro-Grits
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Solution Overview
Problem
Existing porcelain stoneware tiles struggle to achieve a balance between high anti-slip properties, ease of cleaning, and resistance to dirt accumulation, while meeting regulatory standards such as DIN51130 and DIN51097.
Innovation Solution
A method for manufacturing porcelain stoneware tiles involves using an enameling product with micro-grits, where the micro-grits are embedded in the enamel to create an anti-slip surface that is also easy to clean and resistant to dirt.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional enamel coating is used on porcelain stoneware tiles, then the surface is smooth and easy to manufacture, but the anti-slip performance is insufficient
Solution Approach 1:
The patent applies composite materials by combining traditional enamel with micro-grits (mineral particles) to create a composite coating. This composite structure provides both the smoothness and ease of manufacture of traditional enamel and the enhanced anti-slip performance of the embedded micro-grits, resolving the contradiction between manufacturing simplicity and safety performance.
Solution Approach 2:
The patent applies local quality by embedding micro-grits only in specific locations within the enamel layer - specifically on the surface where contact occurs. The enamel remains smooth in bulk while the surface incorporates friction-enhancing particles, achieving localized anti-slip functionality without complicating the overall manufacturing process.
2Reliability
If abrasive particles are added to increase anti-slip properties, then friction coefficient improves, but the surface becomes difficult to clean and prone to dirt accumulation
Solution Approach 1:
The patent applies parameter changes by carefully controlling the size, shape, and concentration of micro-grits within the enamel matrix. The micro-grits are selected with specific dimensional parameters that allow them to provide friction enhancement while maintaining surface smoothness at the micro-scale, preventing dirt accumulation and ensuring ease of cleaning.
Solution Approach 2:
The composite structure of enamel bound with micro-grits creates a unified surface that combines the cleaning properties of smooth enamel with the friction benefits of particulate matter. The enamel matrix fills gaps between particles and creates a non-porous surface that resists dirt penetration, maintaining cleanability despite the presence of abrasive elements.
3Reliability
If micro-grits are embedded in enamel to create anti-slip surface, then friction coefficient increases, but the surface texture becomes rougher and less pleasant to touch
Solution Approach 1:
The patent applies parameter changes by optimizing the micro-grit size distribution and concentration within the enamel. The micro-grits are sized and distributed to provide sufficient friction coefficient for safety while maintaining a surface texture that remains smooth and pleasant to touch, balancing tactile comfort with anti-slip performance.
Solution Approach 2:
The patent applies local quality by concentrating the friction-enhancing micro-grits in the contact layer of the enamel while maintaining smoothness in deeper layers. This creates a surface that feels smooth to the touch but provides enhanced grip when pressure is applied, reconciling tactile comfort with anti-slip reliability.
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 method achieves a high dynamic coefficient of friction, meeting the R10 A+B index standards, while providing a surface that is pleasant to touch, easy to clean, and less susceptible to dirt accumulation.
Implementation Method 1
an important aspect for a porcelain stoneware tile lies in the fact that it has a specific technical requirement relating to the 'anti-slip' function, that is resistance to slipping as a function of the inclination angle
Implementation Method 2
The 'unprocessed' tile thus prepared passes to the step for firing in appropriate roller furnaces which causes the vitrification and firing of the tile (which is carried out at a maximum temperature of about 1230° C.)
Data Source
AI summary
A method for obtaining a porcelain stoneware tile with anti-slip surface includes an enameling step, said step comprising the deposition—on the walkable surface of the tile—of a mixture of micro-grits added to a usual enamel, most of said micro-grits having dimensions smaller than 60 μm and being in a percentage smaller than 25% and preferably smaller than 20% by dry weight of the mixture, the remainder consisting of enamel. Furthermore, a tile with walkable surface layer may be obtained according to the aforementioned method.