Anticounterfeit magnetic metallized labels

Details Anticounterfeit magnetic metallized labels Anticounterfeit magnetic metallized labels

1983-02-14

1985-04-16

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428204, 428692, 428446, 428916, 427 7, B44C 110, B32B 3112, B32B 1502

Patent

active

045116164

ABSTRACT:
An electrosensitive security laminate including a magnetic layer providing a magnetically encodable substrate. The laminate includes a base layer such as paper, a magnetic layer deposited on the base layer, and a vapor deposited metallic layer either over the magnetic layer or the opposite face of the base layer. Additional security may be achieved by including a decorative intermediate layer having a visibly nonuniform pattern. The user may detect a magnetically encoded pattern using a device which forms a visible pattern in accordance with any magnetic field adjacent the laminate. The patterned intermediate layer where included may be selectively exposed by electrically imprinting the metallized layer, thereby exposing a background pattern within any inscribed indicia.

REFERENCES:
patent: 3498837 (1970-03-01), Alstad et al.
patent: 4166144 (1979-08-01), Ameikar
patent: 4183989 (1980-01-01), Tooth
patent: 4215170 (1980-07-01), Vilaprinyo Oliva
patent: 4258920 (1981-03-01), Waldron et al.
patent: 4315145 (1982-02-01), Nishikawa et al.
patent: 4352706 (1982-10-01), Miller

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