Table 2 The self-cleaning properties of the leather surface under UV light exposure.
Time | Control | Sample D |
|---|---|---|
Initial stained |
|
|
After 3 h of UV light exposure |
|
|
After 15 h of UV light exposure |
|
|
Time | Control | Sample D |
|---|---|---|
Initial stained |
|
|
After 3 h of UV light exposure |
|
|
After 15 h of UV light exposure |
|
|