Evaluation of Antifingerprint Properties of Plastic Surfaces Used in Automotive Components

Table 5

Cut-off values and average results of the four significant parameters on selected surfaces using artificial and human fingerprint.

	Artificial fingerprint				Human fingerprint
	Δ%	Δ% 20°	Δ%	Δ%	Δ%	Δ% 20°	Δ%	Δ%
Cut-off	10	−2	10	50	10	−2	10	50
IML2	4.2 ± 0.05	7.8 ± 0.11	0.38 ± 0.07	−6.28 ± 0.11	5.18 ± 0.1	2.37 ± 0.1	−0.08 ± 0.03	7.88 ± 0.14
IMD1	0.4 ± 0.09	2.9 ± 0.17	−1.06 ± 0.01	−4.20 ± 0.04	6.24 ± 0.1	14.69 ± 0.1	−2.87 ± 1	−5.68 ± 1
VN3	1990 ± 2.4	−6.9 ± 0.2	17.47 ± 0.43	120 ± 3.1	2075 ± 64.8	−15.59 ± 0.2	94.06 ± 0.7	616 ± 10.7
IML4	170.6 ± 1.3	−4.9 ± 0.1	143.90 ± 0.9	1220 ± 11.1	540 ± 5.8	−12.66 ± 0.1	64.75 ± 0.4	1236 ± 11.8