Are most commonly used for Acetatseidenetiketten to label people. In my case, mostly assistant in an internship or an employee at a meeting. Most of his employees (previous) himself writes name with permanent marker on the label. And then here is my gripe. The labels strong pull due to the capillary ink, typeface becomes blurred (see customer image). It may be that they work better with laser printers, ink, however, you should have no great demands on the font sharpness and select a large font. Perfect fit is also relative. On blouses and T-shirts they stick still quite good, at knitting or Nicki substances already significantly worse. Since you can basically take normal, large paper labels that stick as well or even better sometimes on clothing. Mitwaschen can be labels, moreover, not because they go off when washing labels are therefore definitely not suitable.
Conclusion: Pull strong ink and glue not better than paper labels on fabric.