Apparatus for estimating absorption spectrum, and apparatus and method for correcting mixing ratio of monochromatic dyes
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Solution Overview
Problem
The existing dyeing process relies heavily on skilled operators' know-how to mix monochromatic dyes, leading to unreliable color reproduction and requiring extensive trial and error, especially when inexperienced operators are involved, resulting in time and resource inefficiencies.
Innovation Solution
An apparatus and method that utilize absorption ratio or absorbance data calculated from reflection ratio data to estimate and correct the mixing ratio of monochromatic dyes, allowing for precise reproduction of desired colors through a spectrophotometer-based system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If skilled operators use know-how to mix monochromatic dyes, then color reproduction reliability improves, but operator availability and experience requirements worsen
Solution Approach 1:
The patent replaces the manual, experience-based mechanical mixing process with an automated optical measurement and calculation system. A spectrophotometer measures the absorption spectrum of the mixed dye, and a processor automatically calculates the mixing ratio based on the absorption spectrum and reference data, eliminating dependence on skilled operators' know-how
Solution Approach 2:
The system enables self-service by allowing the mixing ratio determination to be performed automatically without requiring skilled operator intervention. The apparatus uses the measured absorption spectrum and stored reference data to autonomously calculate and determine the optimal mixing ratio, making the process independent of operator experience
2Manufacturing precision
If trial and error methods are used to adjust mixing ratios, then color matching accuracy improves, but time consumption and resource efficiency worsen
Solution Approach 1:
The patent implements a feedback mechanism where the spectrophotometer measures the absorption spectrum of the mixed dye, and the processor compares this measured spectrum with reference absorption spectra to calculate and determine the accurate mixing ratio. This closed-loop feedback system eliminates the need for repeated trial and error adjustments
Solution Approach 2:
The system performs preliminary action by pre-storing reference absorption spectra and mixing ratio data in the memory. When a new mixing ratio needs to be determined, the processor quickly compares the measured absorption spectrum with the pre-stored reference data to immediately calculate the mixing ratio, avoiding time-consuming trial and error processes
3Measurement precision
If absorption spectrum estimation is performed using the proposed method, then mixing ratio determination accuracy improves, but measurement and calculation complexity worsens
Solution Approach 1:
The patent applies universality by using a spectrophotometer, which is a common and widely available instrument in the dyeing industry, to measure the absorption spectrum. The processor uses general-purpose calculation algorithms to determine the mixing ratio from the absorption spectrum, making the system accessible and easy to integrate into existing dyeing operations without requiring specialized or complex equipment
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 approach enables reliable and efficient reproduction of desired colors, reducing the need for skilled operators and minimizing trial and error, thereby saving time and resources in the dyeing process.
Implementation Method 1
estimating a spectrum related to an absorption ratio or absorbance of a mixed dye from a reflection ratio by concentration for each of monochromatic dyes
Implementation Method 2
estimating a spectrum related to an absorption ratio or absorbance of a mixed dye
Data Source
AI summary
Provided are an apparatus and method for correcting a mixing ratio of monochromatic dyes. The apparatus includes a memory, and a processor connected to the memory, wherein the processor estimates a first spectrum related to an absorption ratio or absorbance of a mixed dye from a reflection ratio by concentration for each of monochromatic dyes stored in the memory, estimates, from a reflection ratio of a desired color stored in the memory, a second spectrum related to an absorption ratio or absorbance of the desired color, and corrects a mixing ratio between the monochromatic dyes used in manufacturing the mixed dye on the basis of a result of comparing the first and second spectra.