In the Jean lab, we asked the question of what concentration of bleach is best to fade color out of new denim material in 10 minutes without damage to the jeans? Our group found out that the 100 % concentration of bleach did the most color change to the fabric without damaging it. By giving ranks of 1- 10 for each of the 3 denim squares in Color removal and Fabric Damage, we found out that the 100% of bleach ranked 10 in each denim square for color removal and 0 in each denim square for Fabric Damage. This shows that when the denim square is put in the 100% concentration of bleach, fabric changes the color the most without causing any fabric damage. This relates to the fact that since the role of bleach is it washes out color, the more bleach there is in a concentration, more color change will happen.
Our data was unexpected because we did not dry the petri dishes completely. In the future, we should wash the petri dishes earlier when we do not need it. That way,we will give more time for the dishes to try.
This lab was done to demonstrate how bleach can make an effect on denim jeans. From this lab, I learned that more bleach can cause more color change but not necessarily fabric damage, which helps me understand concept that when bleach reacts with denim jeans, it makes a physical change but not a chemical change. Based on my experience from this lab, I can use it to know that it is not necessarily bad to put bleach on denim jeans.
Concentration (% Bleach)
|
Average Color Removal
|
0
|
1/3
|
12.5
|
0
|
25
|
2/3
|
50
|
7 1/3
|
100
|
10
|
Concentration (% Bleach)
|
Average Fabric damage
|
0
|
0
|
12.5
|
0
|
25
|
0
|
50
|
0
|
100
|
0
|
