Method of curtain coating pigment particles on paper plies

Details Method of curtain coating pigment particles on paper plies Method of curtain coating pigment particles on paper plies

1974-12-04

1977-02-15

Bashore, S. Leon

Paper making and fiber liberation

Processes and products

Multi-layer waterlaid webs or sheets

162132, 162175, 162181D, 162186, 427420, 428342, D21H 102, D21H 122, D21H 124

Patent

active

040081214

ABSTRACT:
In order to opacify one side of a multi-ply paperboard comprised of a plurality of paper plies, pigment particles are spread between a pair of the plies. Pigment particles are preferably clay particles and are preferably spread immediately beneath the outermost ply at the one side of the board at a distribution of between 5 grams per square meter and 60 grams per square meter.

REFERENCES:
patent: 1344603 (1920-06-01), Warren
patent: 1538582 (1925-05-01), Olander et al.
patent: 1903236 (1933-03-01), Johnsen
patent: 2007470 (1935-07-01), Harvey
patent: 2286924 (1942-06-01), Nicholson
patent: 2708643 (1955-05-01), Page et al.
patent: 2830916 (1958-04-01), Brown
patent: 3508952 (1970-04-01), Eykamp et al.
patent: 3560334 (1971-02-01), Arledter

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