KN or KNR: Residue (CN)
WEL or NEL: Wide-Edge Leading (WEL)
Surface layer: Polyester film (thickness: 50+2 micrometers)
Hidden message: "VOID OPEN" (thickness: 1+0.5 micron)
Carpet pad: Glassine paper (thickness: 70+5 microns)
Blank adhesive: Material: rubber (thickness: 40+3 micrometers, adhesive strength 12#↑, adhesion: 7↑, holding force 24↑)
Total thickness: 160+10 micrometers
Application temperature: -20°C to 35°C
Working temperature: -10°C to 110°C
Pantone colors: Blue (#3005), Red (#1935)
Standard barcode: BC 128
Print: Thermal printing, unique consecutive numerical marking