Thermal Magnetic Card

	LK332A	LK342A	LK333A	LK343A
Technical Characteristics
Base film material	PET	PET	PET	PET
Base film colour	milky white	milky white	milky white	milky white
Base film thickness (μm)	188	188	188	188
Surface  colour	silver	silver	white	white
Magnetic Properties
Coercivity(Oe)	1750	2750	1750	2750
Mem.Mag.Flux（μWb/m）	1.4±0.14	1.4±0.14	1.8±0.18	1.8±0.18
Squareness	≥0.85	≥0.85	≥0.85	≥0.85
Switching field	≤0.35	≤0.35	≤0.35	≤0.35
Signal Amplitude Characteristics
Signal amplitude  UA1	80~130%	80~130%	80~130%	80~130%
Resolution     UA3	≥70%	≥70%	≥70%	≥70%
Erasure         UA4	≤5%	≤5%	≤5%	≤5%
Back-reading Property	≤5%	≤5%	≤5%	≤5%
Themal Properties
Background density	≤0.2	≤0.2	≤0.2	≤0.2
The Density at 60℃	≤0.2	≤0.2	≤0.2	≤0.2
The Density at 130℃	≥1.4	≥1.4	≥1.4	≥1.4

Structure
				Shield layer
				Magnetic layer
				Substrate
				Thermal layer
				Printing layer