Fluorescent Building Product Identification via UV Detection
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Solution Overview
Problem
Manufacturers face challenges in quickly identifying the source of gypsum-based building materials, such as joint compounds, especially when homeowners report defects, as existing methods require laboratory analysis, which is time-consuming and inefficient.
Innovation Solution
Incorporating a UV-reactive optical brightener, similar to those used in laundry detergents, into building materials at concentrations of 0.003-0.006% by weight, allowing for easy identification using a conventional UV blacklight in the field.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If laboratory analysis is used to identify building material source, then identification accuracy is improved, but investigation time is significantly increased
Solution Approach 1:
The patent applies fluorescent tagging materials that emit specific colors under UV light to identify building material sources. Different manufacturers use different fluorescent tags with distinct emission wavelengths, enabling quick visual identification without laboratory analysis. The tagging material is incorporated into the building material during manufacturing, and field inspectors can identify the source by shining UV light and observing the fluorescent color pattern.
2Productivity
If fluorescent tagging material is incorporated into building material, then identification speed is improved, but product cost is increased
Solution Approach 1:
The patent optimizes the concentration of fluorescent tagging material to balance identification effectiveness with cost considerations. By adjusting the amount of fluorescent additive and selecting cost-effective fluorescent compounds, the system achieves reliable identification while minimizing impact on manufacturing costs. The tagging material is added in small quantities during the manufacturing process, requiring minimal modification to existing production lines.
3Ease of operation
If ready-mix joint compound is supplied in fixed volumes, then convenience is improved, but flexibility in application is reduced
Solution Approach 1:
The patent enables contractors to adjust the viscosity and consistency of ready-mix joint compound by adding water or other liquids, while the fluorescent tagging material remains effective for identification. The system accommodates different application requirements and environmental conditions by allowing formulation adjustments, maintaining both convenience and adaptability in the field.
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
Enables rapid onsite identification of building materials, reducing investigation time and costs, while maintaining the performance and cost-effectiveness of the materials.
Implementation Method 1
Incorporating a UV-reactive optical brightener, similar to those used in laundry detergents, into building materials at concentrations of 0.003-0.006% by weight, allowing for easy identification using a conventional UV blacklight in the field.
Data Source
AI summary
A method of making an identifiable gypsum-based building product, includes incorporating a suitable amount of an optically identifiable marker into the product to be sensed by a conventional detecting device; applying the product with the marker in a conventional manner in the course of building construction, creating a finished building product; and analyzing the finished building product and optically detecting the presence of the marker in real time onsite.