Dyeing Studies of Wool Fibers with Madder

After the serial dilutions of the red and blue dyes were taken, the molarity and absorbance for both dyes were calculated. Using the MiVi = MfVf equation, the concentrations for each value of the red and blue dye were separately calculated. Calculating absorbances calls for setting the correct wavelengths of light for each dye. In this case, the 470 nm wavelength for red dye and the 635 nm wavelength for blue dye was needed to find the maximum absorbances. The absorbance was found by blanking the colorimeter and entering the concentrations. After both values of the absorbances and concentrations were found, the values were then graphed in order to obtain the equation of the relationship between absorbance and concentration.

More apparent on hydrophobic fibers because their fibers have greater electrical static attraction for each other ran do not fall off the fabric surface. Wool also pills because it has a scaly surface.

If bleach is used compared to the other detergents, then bleach will work best because it has the most whitening agent. The experiment will work around this hypothesis in hopes of proving it right using both the background knowledge and the experimental data. In the experiment bleach will be applied to 5 shirts along with tide, gain, oxy-clean, and arm and hammer in varying washes to see which detergents remove the stain applied by grape juice the best. *Note only

Figure 2: Dye percents versus absorbance in a control, 10%, 20%, and 30% azide solutions.

I believe in semi-permanent hair dye: The kind that lets you have a few wacky purple-headed weeks in the depressing months of winter term, but leaves you plain and brunette again in time for graduation pictures. The kind that lets you be whoever you want without letting go of how you got there. The kind that lets you embrace those internal contradictions that make up an entire, oxymoronic, complex, complete human being. I believe in hypocrisy, just a little.

Literature Review: Research into this topic shows that it is not as simplistic as might be imagined, but has in fact been examined as part of rigorous research projects undertaken on behalf of paper towel manufacturers (Beuther et al, 2010). The ways in which paper towels absorb, and therefore the rates at which they are able to absorb, vary depending on the microscopic fiber structures within individual paper towels, which of course vary greatly depending on the manufacturing materials and processes in the making of each brand of paper towels (Beuther et al, 2010). Fiber types and construction patterns have also been demonstrated to have a large impact on absorbency in natural and synthetic textiles examined in a similar experiment (Beskisiz et al, 2009). Both of these pieces of research suggest certain controls for the paper towel experiment described herein (Beuther et al, 2010; Bekisiz et al, 2009).

3. Now you need to extract the dye from the solution onto the strips of yarn. To do this, place one piece of yarn into each test tube of colored solution. Heat the tubes in a boiling water bath for 8-10 minutes. You can remove the tubes from the water when the solution is milky-white and the yarn is the color of the dye, in other words, when all of the dye has been extracted from the solution.

Anyone who lives in a cold climate has gotten cold in their winter gear. They’ve tried different winter gear made out of different materials, but they always found themselves too cold or too hot. And are wasting there money on different kinds of winter gear, and most do not work out. What if they tried wool, synthetic, or alpaca wool, which one keeps people the warmest in the winter?

In this experiment 10 cuvettes were filled with the appropriate dilution, an additional cuvette should be filled with distilled water which should be used to calibrate the colorimeter. Record the absorbance and transmittance for each dilution generated from the Webquest. Additionally, two samples of Gatorade contains Blue Dye #1 (Low Calorie and Glacial Frost) were tested and found that the Low Calorie Gatorade had an absorbance of .135 and the absorbance of the Glacial Frost Gatorade was .153. Using linear regression the concentration of the two samples can be found if the value of transmittance is substituted for the Y value. The concentration of sample 1 is 62.8 µM and the concentration of sample 2 is 69.68 µM respectively reporting in four significant

Once the Tang dynasty reunited the Chinese empire in the 7th century, trade exploded once again, and China was introduced to international influences that expanded the way Chinese royalty thought about the relationship between sovereignty and textiles. New and innovative weaving techniques flooded into China, as well as textile patterns and motifs. Traditionally royal silks and dress accentuated the obligations of the emperor, yet with the influx of new technologies, imperial costumes emphasized the magnificence of the king and his court. Specific shapes and animals came to designate rank and status in the

When the Europeans came to the americas, the native americans had more supplies than them so they used their resources to their advantage. The European higher class people wore red because it was rare in europe. But, in the americas the native americans found a plant that creates a red dye for clothing which caused the european economy to

The experimental value of the maximum wavelength for 1-1’-diethyl-2-2’-cyanine iodide was 525nm and the calculated value when p=0nm is 141nm, which shows that 0nm is too small. To get a penetration distance for the dye Equation 4 was used and the value was 0.2439nm. This value of p is much larger than the original guess made for the penetration distance is the pre-lab. Using the calculated penetration distance from this dye, the wavelength of pinacyanol chloride is calculated to be 654nm. This value is about 50nm off the experimental value, which at this scale is significance. A penetration distance was found for pinacyanol chloride, using its experimental maximum wavelength, giving a value of 0.207nm. Using this value to solve for the

Each sample was tested against water, which was carefully calibrated. Furthermore, to determine the concentration of the food dye found within a beverage sample, the ingredients label from the beverage container was read and used to determine which food dye was present within the sample. Subsequently, 50 mL of the food dye type was collected and separated into labeled test tubes in 2 mL decreasing increments from 10 mL to 2 mL. Likewise, water was added to the test tubes in 2 mL increasing increments from 0 mL to 8 mL, so that each test tube contained 10 mL of solution. The absorbance of each solution was measured using the spectrometer, recorded, and then used to determine the concentration of each solution. A scatter plot of the concentration of the food dye in each sample versus absorbance was created, allowing or the equation of the trendline to be found.

My science fair project is on how the Sun’s rays affect our clothing. Have you ever noticed how your clothes lose color after a while? Well that’s all due to the Sun. I decided to do this project because i’ve heard many complaints on how people hate when they’re clothing starts to fade or lose it’s color. For this project I will be figuring out which fabrics are least likely to fade over a period of time exposed directly to the Sun. After my experiment is over, I’ll be able to see what fabric upheld the most color. I’ll also be researching on why the fabric lost its color easily or kept it from fading over time. This can help someone maybe buy a certain type of material over summer when the Sun is out the most and stop from your clothing

AATCC (pronounced A squared, T, C squared) is formally known as the American Association of Textile Color Chemists. According to the AATCC home page, “AATCC is the world’s leading not-for-profit association serving textile professionals. They provides test method development, quality control materials, and professional networking for thousands of members in 60 countries throughout the world” (Welcome, n.d.). The mission of AATCC is to facilitate and expand the knowledge of textile goods while allowing members to network ideas, creative innovations, expertise, and experiences globally (Strategic Plan 2011-2016, n.d.). The vision reads as follows “AATCC will be the premier global resource for quality, innovation and technical information for the textile, fiber and soft goods industries: The recognized knowledge