Gunold BSN Thermal Film glues patches, badges, and emblems – there is no need to sew! After embroidery, simply iron the back of the patch.
The thermal film is available in two versions: version H is used with an iron, version I – with a heat press.
Royal Present also recommends using BSN in such cases:
~ to protect the embroidery from accidental damage to the thread on the wrong side;
~ to prevent the chevron from turning into a soft shaggy rag;
~ for embroidery of only one motif with subsequent ironing on to the product.