How to number towels, the kind that can't be washed out after disinfection?

It is suggested to sew a mark on the clothes so that the disinfectant can't be washed off. The specific steps are as follows:

First, prepare clothes, needle and thread, pens and scissors.

Second, make your favorite mark on the collar of the clothes. In the example, it is marked with "X".

Third, choose your favorite color to cut a certain length of thin thread, be careful not to be too short, and thread the thread through the eye of the needle and tie it.

Fourth, find a fixed point on the written mark and put it on the bottom of the clothes, which completes the first stitch.

5. Find the second fixed point according to the order of the marks, and put the needle through the clothes, and the first mark will appear.

6. Repeat the above operation until the mark written on it is sewn. If the color is not prominent enough, you can sew more stitches. When sewing, be careful not to stab your fingers with the needle. The fixing point should be as compact as possible and the gap should not be too big. Finally, remember to tie the knot.

A few simple stitches will have an effect ~