Determination of Color Fixation Rate

Dye fixation rate refers to the fixation performance during the dyeing process, and is a parameter to measure the degree of fixation of dyes on fibers. The higher the color fixation rate of the dye, the better the color fixation performance of the dye on the fiber and the longer the dyeing effect. Dye fixation rate can be determined by dyeing test. The determination of the fixation rate of the dye can be quantitatively analyzed according to the degree of penetration of the dyed substance during the dyeing process. The commonly used determination methods include substance adsorption method, printing and dyeing method, solution filtration method and magnetic measurement method. Alfa Chemistry has a professional dye testing service center, which can provide customers with accurate and efficient dye testing services, and can choose appropriate testing methods according to the performance of dye products. Alfa Chemistry will sign a strict confidentiality agreement with customers and guarantee to complete customers' orders within the service cycle.

The Services

Alfa Chemistry can submit accurate dye fixation rate testing services within the cycle range. The related services that can be provided include the following:

• Performance testing and evaluation of color fixing reagents
• Thermal load test
• Color fastness test
• Rubbing fastness test
• Washing fastness test

A confidentiality agreement is required. The above testing services can carry out a single test or a mixed test, aiming to provide customers with efficient, fast and accurate test results.

Advantages of The Test Platform

• Have a dedicated testing consultant
• Have a high-quality laboratory and strictly control the quality of testing
• Visual service process, real-time grasp of service progress
• Submit accurate test results and reports within the cycle

Detection Method Introduction

• Substance adsorption method: After mixing the dye solution and the dyeing substance (such as fabric), the color fixation rate of the dye is determined by measuring the change of the dye concentration in the solution. Methods include colorimetry and spectrophotometry.
• Printing and dyeing method: Compare the fabric or paper dyed with the dye with the control sample before dyeing, and determine the color fixation rate by comparing the difference in color depth between the two. Measurements can be made using visual comparisons, photometers, colorimeters, and other equipment.
• Solution filtration method: Filter the dye solution through a certain area of filter membrane, and then determine the fixation rate by comparing the change of dye concentration before and after filtration.
• Magnetic measurement method: After mixing the dye with magnetic particles, the color fixation rate is determined by measuring the sedimentation speed of the magnetic particles or the change of the magnetic field strength during the dyeing process. It can be measured with magnetic induction instrument, magnetometer and other equipment.

About Dye Fixation Rate Testing Service

The color fixing rate test of the dye is to evaluate the dyeing effect and color fixing performance of the dye. Dyeing is the process of infiltrating dye molecules into fiber materials to color the fiber materials. Color fixing performance refers to the firmness of the dye on the fiber material, that is, the strength of the interaction force between the dye and the fiber material. The test of dye fixation rate can be used for the following purposes:

• Evaluate the dyeing effect of dyes
• Evaluate the color fixing properties of dyes
• Comparing the properties of different dyes

The advanced dye testing center has complete equipment and experienced experts, which can provide customers with satisfactory dye testing services. If you are interested in our services, please contact us immediately for more information.

It is important to note that our products are for research use only and are not for clinical use.