Stock material or miscellaneous articles – Composite – Of polyamidoester
Patent
1976-07-09
1978-07-25
Lusignan, Michael R.
Stock material or miscellaneous articles
Composite
Of polyamidoester
96 49, 96 75, 96 85, 96 91R, 427161, 427391, 428447, 428511, 428512, 428514, D21H 508
Patent
active
041030729
ABSTRACT:
There is disclosed a method of producing diazotype photoprinting material in which a base paper is withdrawn from a supply roll and transported through a precoating station in which a solution containing a silicon filler is applied to one side of the base paper; the paper is then transported from the precoating station past a plurality of heaters to a sensitizing station in which a solution containing a diazotype sensitizing compound is applied to one side of the base paper; the base paper is then transported past a second set of heaters to a transparentizing station in which a solution containing a water emulsion of a water clear synthetic organic resin is applied to the other side of the base paper simultaneously to render the base paper translucent and to decurl the paper; the paper is then transported past a third set of heaters to dry the paper to a moisture content of about 4% and finally is wound into a roll. A method of transparentizing any water absorbent natural fiber material is also disclosed.
REFERENCES:
patent: 3352677 (1967-11-01), Kosalek
patent: 3457100 (1969-07-01), Levene
patent: 3813261 (1974-05-01), Muller
Lusignan Michael R.
Weber-Valentine Company, Inc.
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