Jean Lab Conclusions
In this lab, we answered the question of which concentration of bleach is best to fade the color from the new denim material in 10 minutes without visible damage to the fabric. As a group, we found that in the 50% concentration of bleach was best to fade the jeans, but keep fabric damage minimal. On a scale from 0 (undamaged/no color removal) to 10 (fully damaged/all color removed), we found that the color removal of the 50% concentration was about 5.3, while the fabric damage was 6.3. This was because of a fluke, when one of the three jeans fabricated a hole inside of it, but the other two seemed almost untouched (about 5 damage). This was coupled with the previous knowledge that bleach removes colors and pigments of specific objects, that bleach is highly base and can break down cell membranes and certain materials such as pigments, and that bleach has the ability to remove stains in white clothing. This data supports our claim, because our results also showed that the more bleach concentration is applied to the jeans, the more the pigments are removed and the more damage is done to the fabric.
While our hypothesis was supported by our data, there could have been some errors due to imperfect cut-outs of the jeans and the handling and timing of taking the jeans out of the bleach. When we cut out the jeans from the original pants, our cutting were not exactly 5 by 5 cm. Some of these imperfections resulted in later assumptions of what we thought were fabric damage, as well as more gradual overall damage later due to the bleach. Due to these errors, in future experiments, I would recommend to have more stronger cutting tools to cut the jeans, such as a water jet cutters or saws to make the cut more perfect. I would also recommend being more faster and agile on removing the jeans from the bleach solutions. Sometimes, we left the jeans in the solutions longer than 1 minute, which was how the experiment was supposed to be carried out.
This lab was done to demonstrate how different concentrations of bleach would reflect the overall quality of the jeans' fabric and the amount of fading done to the jeans. From this lab, I learned that not only does bleach remove pigments and kill cells, but it also damages the fabric it comes in contact with. I also learned that 50% concentration is optimum for fading denim jeans without dealing too much fabric damage. This helps me understand the concept of how much damage and fading of different concentrations of bleach can do to materials. Based on my experience from this lab, I could apply this experiment's results to how much bleach I should apply to fade my own jeans in the future.
Here are some pictures of the experiment we did (including the results of our lab)!:While our hypothesis was supported by our data, there could have been some errors due to imperfect cut-outs of the jeans and the handling and timing of taking the jeans out of the bleach. When we cut out the jeans from the original pants, our cutting were not exactly 5 by 5 cm. Some of these imperfections resulted in later assumptions of what we thought were fabric damage, as well as more gradual overall damage later due to the bleach. Due to these errors, in future experiments, I would recommend to have more stronger cutting tools to cut the jeans, such as a water jet cutters or saws to make the cut more perfect. I would also recommend being more faster and agile on removing the jeans from the bleach solutions. Sometimes, we left the jeans in the solutions longer than 1 minute, which was how the experiment was supposed to be carried out.
This lab was done to demonstrate how different concentrations of bleach would reflect the overall quality of the jeans' fabric and the amount of fading done to the jeans. From this lab, I learned that not only does bleach remove pigments and kill cells, but it also damages the fabric it comes in contact with. I also learned that 50% concentration is optimum for fading denim jeans without dealing too much fabric damage. This helps me understand the concept of how much damage and fading of different concentrations of bleach can do to materials. Based on my experience from this lab, I could apply this experiment's results to how much bleach I should apply to fade my own jeans in the future.
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