If I Dye What Madders?

Overview

Objectives/Goals To achieve the brightest red dye out of fresh madder root. If the older (larger) roots are grinded, then the color of the dye extract will be deeper in color than using the young roots. If the inner part/core of the roots is used after the grinding, then the color of the yarns will be redder than the outer part. If the experimenter dyes the cotton, then the color of the dyed material will be more vibrant red than the nylon or wool. Methods/Materials What was used to conduct the preparation of the dye baths and the dyeing of the fibers were freshly ground madder root, distilled water, a thermometer or temperature probe in degrees Celsius, the SpectroVis and Vernier Lab Quest interface device as well as basic lab equipment. To make a dye bath one mixes the root and water, heats, filters, and then measures the absorbance levels in cuvettes with the Spectrometer; the process of dyeing is to make a dye bath with the concentration of 17.5 g to 300 mL of distilled water with samples 4A, 4B, and 4C. Soak, heat, filter, and heat it again then place the pre-soaked fibers into the samples. Results The results are not quantitative but rather qualitative data, based on subjective identification of color. Therefore the experimenter#s findings might differ from those of another person. None the less the experiment found that the core of the larger root and the wool a protein fiber produced the most vibrant red dye. Conclusions/Discussion In conclusion the brightest dye can be achieve when making an extract from the largest roots because they have the most surface area, the core of the roots since that is where most of the red dyeing chemical alizarin is, and using the wool which is the protein fiber. These findings will allow more people to understand the intermolecular forces between the dye material and the fibers.

Competition history

• CSEF 2011 Chemistry · Entry S0623

Resources

• CSEF project summary ↗

Related projects

Closest projects by meaning, across every fair and year in the corpus.

Browse more like this

• All Chemistry projects
• CSEF Chemistry projects
• Every CSEF 2011 project