Thermal paper:

TECHNICAL DATA OF THERMAL PAPER

Item		Unit	55gsm(CZ)	58gsm(CZ)	58gsm(SY)	Test Method
Substance		gsm	55±5	58±6	58±7	GB451.2
Thickness		µm	60±5	62±5	66±6	GB451.3
Brightness		%	≥ 80	≥ 80	≥ 78	GB7949
Smoothness		S	≥ 300	≥ 300	≥ 160	GB456
Tensil strength(MD)		KN/m	≥ 3.0	≥ 3.0	≥ 2.0	GB453
Tear strenght(CD)		mN	≥ 250	≥ 250	≥ 200	GB455.1
Static color development properties	70°C		≤0.20	≤0.20	≤0.20	40g/cm2 5Sec.
	100°C		≥0.95	≥0.95	≥0.95
Dynamic color development properties	0.42mj		≥0.95	≥0.95	≥0.95
	0.60mj		≥1.05	≥1.05	≥1.05
Expiry: two years later after developmnet images ( under dark place,room temperature)