Making color samples in the laboratory is an important link in the dyeing production process. Whether the dyeing process formula is reasonable will directly affect the passing rate of dyeing samples, and is related to whether the dyeing production in the workshop can proceed smoothly and the quality of the dyed products. Can meet customer requirements and directly affect the economic benefits of the enterprise. Therefore, this puts forward higher requirements for technicians involved in color matching and proofing work.
Color-matching proofing ability requirements
Color-matching proofing is a technical work, and its proofing speed and sample size rate mainly depend on color-matching proofing technology. The personnel’s accumulation of basic information and experience in color matching proofing.
1. Basic knowledge
As a technician engaged in color matching and proofing work, you should master the basic principles and methods of dye color matching, dyeing materials and textiles Performance, especially the color characteristics and basic properties of the dyes used (shade, strength, color fastness and lifting power of the dye, etc.) must be fully understood, and the mixing effect of the three primary colors of the dye must be fully understood in order to be able to Correctly select dyes, quickly and accurately match colors, proof, lay out, and put into production.
2. Training of basic abilities
For a beginner, you can make single-color dyeing proofing of the dyes used according to a certain concentration gradient to make a series of Single-color sample cards, and find out the law of dye color changes with dyeing depth, and master the dyeing properties of the dyes used.
Basic training is mainly divided into three steps: dye single color sample card production, color triangle, and subtractive color mixing.
The purpose of making single-color sample cards of dyes is to grasp the color characteristics of the dyes used, namely: color light, strength, lifting power, and the change of color light with the dyeing depth when the dye is dyed.
When making the three primary color color matching pagoda diagram, first select a certain concentration of the three primary color dyes, respectively from the three corners of the isosceles triangle, along the three sides of the triangle according to 10 ok The concentration gradient decreases or increases. Calculate the dye formula for each sample, a total of sixty-six samples, and proceed with dyeing and proofing. As shown below.
Color Triangle (pagoda diagram) example
By learning this method, you can initially master the color matching principles and methods of three primary color dyes, and master the basic methods and techniques of color matching and proofing.
In actual work, strictly distinguishing whether the specific color mixing is additive color mixing or subtractive color mixing can improve the efficiency and quality of color matching. In color matching proofing we use subtractive color mixing. Subtractive color mixing is shown below.
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