Pressure sensitive recording sheet

Details Pressure sensitive recording sheet Pressure sensitive recording sheet

1974-01-09

1976-04-27

Weinblatt, Mayer

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

162126, 162127, 162128, 162129, 427207, 427219, 427298, B32B 2732, D21F 1100

Patent

active

039536424

ABSTRACT:
A pressure sensitive recording sheet adapted for imaging under the pressure of a typewriter key or other writing instrument. The sheet comprises a ply of high surface area polyolefin fibers masking a colored medium therein. The ply of polyolefin fibers when subjected to the localized pressure of a writing instrument becomes relatively transparent in the region where the pressure is applied, to make distinct the colored medium distributed in the recording sheet.

REFERENCES:
patent: 3411976 (1968-11-01), Heliker et al.
patent: 3501369 (1970-03-01), Drelich et al.
patent: 3625736 (1971-12-01), Matsukawa et al.
patent: 3752732 (1973-08-01), Peterson et al.
patent: 3795575 (1974-03-01), Gouw

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