Colored Binder for Fiber Substrate Quality Control
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Solution Overview
Problem
Modern wood industry production processes face high reject rates due to delays in quality testing, particularly in plywood production, where defects related to binder interactions with substrates are often detected too late, leading to inefficiencies and waste.
Innovation Solution
A method for producing fiber-based products that involves applying a binder composition with a colorant to ensure uniform distribution, allowing for immediate on-line monitoring of defects, using polymerizable substances, crosslinking agents, and a colorant that creates a significant color difference on a Gardner scale, enabling reflection densitometry to assess uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional quality testing methods are used, then production speed can be maintained, but defect detection is delayed and reject rates increase
Solution Approach 1:
The binder composition is colored with a colorant that provides a distinct color change when the binder is properly applied and distributed on the substrate. This color change enables visual inspection during the production process, allowing immediate detection of application defects without requiring delayed laboratory testing. The colored binder composition allows operators to monitor quality in real-time, eliminating the time delay between production and quality assessment.
2Device complexity
If binder composition is applied without colorant, then production process is simpler, but defect monitoring becomes difficult
Solution Approach 1:
A colorant is added to the binder composition that creates a visible color change when the binder is applied to the substrate. This colorant allows for easy visual detection of defects in binder distribution, application uniformity, and coverage during the production process. The colorant does not interfere with the binding functionality but provides clear visual feedback for quality control.
3Manufacturing precision
If uniform binder distribution is ensured through color monitoring, then product quality improves, but production time increases
Solution Approach 1:
The colored binder composition serves its own quality control function through visual inspection. The colorant embedded in the binder composition allows the binder itself to indicate whether it has been applied uniformly and correctly, eliminating the need for separate complex measurement systems or post-processing quality testing. This self-indicating property enables rapid visual assessment during production.
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 method allows for real-time detection of defects during the gluing phase, reducing wood waste and improving product strength by ensuring uniform binder distribution, thereby enhancing the overall production efficiency and quality of fiber-based products.
Implementation Method 1
using polymerizable substances, crosslinking agents, and a colorant that creates a significant color difference on a Gardner scale, enabling reflection densitometry to assess uniformity
Data Source
AI summary
The invention relates to a method for producing a fiber based product, wherein the method comprises the steps of: a) applying a binder composition over at least one surface of at least one fiber based substrate; b) determining the distribution of the applied binder composition over the entire at least one surface of the at least one fiber based substrate; and c) based on the determination in step b) either accepting the treated at least one fiber based substrate for the production of the fiber based product or rejecting the treated at least one fiber based substrate from the production of the fiber based product. The invention further relates to a method for producing a binder composition, to a binder composition and to a fiber based product.