The flexible UHF silicone washing chip withstands widespread chemical exposure and commercial washing cycles, the high-temperature drying and ironing process, as well as the medical-grade sterilization process. Its small, light, flexible label with a white stripe can be sewn widely into the hem of a garment or linen garment, making it difficult for users to detect during daily activities. These laundry transponders are used in the production of towels and clothing from high-quality fabrics. The slim laundry label has a long reading range of up to 6 meters and enables automatic classification, inventory and accounting of commercial laundries, as well as improved infection tracking and control procedures for medical underwear.