These symbols are not clear to me.
I can guess at some but I'm not certain.
How about you?
Here is a sort of "test" I set up:
It's not finished!
For me the written explanations are useful. I can do without any symbols. There is no way most of them can be interpreted, so why bother to print them?
(Sorry the chart would not fit without being too difficult to see.)
I just realized the use for the symbols. They are to save space on the clothing label.
I usually just throw the clothes in and turn on the switch so that's why I never thought of it.
But then you'd still need a chart to interpret the symbols.
Print a copy for yourself if you think it might help.