Ink-jet recording sheet

Details Ink-jet recording sheet Ink-jet recording sheet

1990-11-21

1992-06-30

Alvo, Steve

Paper making and fiber liberation

Processes and products

With coating after drying

162158, 1621682, 1621812, 428481, B21M 500, D21H 122

Patent

active

051260107

ABSTRACT:
An ink-jet recording sheet that contains as main ingredients 69-95% wood pulp and 4-30 wt % precipitated calcium carbonate and which has a Stockigt sizing degree of 2-25 seconds as measured for a basis weight of 64 g/m.sup.2, or a Stockigt sizing degree ranging from 5.times.(basis weight/64).sup.2 to 25.times.(basis weight/64).sup.2 at a water extracting pH of 4.5-7.5. This sheet allows a clear color to develop and provides an image having circular dots and sharply defined edges. This sheet may also incorporate a cationic synthetic polymer and an alkylketene dimer.

REFERENCES:
patent: 4474859 (1984-10-01), Oshima et al.
patent: 4610801 (1986-09-01), Mathews et al.
patent: 4717758 (1988-01-01), Ogawa et al.
patent: 4925530 (1990-05-01), Sinclair et al.

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