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US 5,508,064 AGranted
Method for matting a recording material and atomizing device therefor
AssigneeFuji Photo Films Co., Ltd.
InventorYasuhito Naruse
Life of this patent
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Abstract
A method for matting a recording medium comprises supplying a humidifying gas stream onto the outer periphery of an atomized stream of fine droplets of an aqueous solution containing a matting agent by atomizing device along the atomized stream for affixing the fine droplets on the recording material, drying the liquid material in a drying chamber for forming micro-projections of the matting agent. Convex-shaped micro-projections of the matting agent, strongly affixed on the recording medium, are formed without contaminating the working environment.
Claims6
A method for matting a recording material, said method comprising:
- (i) affixing to the recording material fine droplets of an aqueous solution comprising a matting agent in the form of convex-shaped projections by generating said droplets with a rotary atomizing unit and transporting said droplets to the recording material in the form of an atomized stream of fine droplets surrounded on its outer periphery by a humidifying annular gas stream having a humidity of 35 to 70 percent, said annular gas stream being ejected at a speed of 3 to 30 m/sec in the direction of the atomized stream and substantially parallel to the axis of the atomized stream and in a manner effective to maintain the velocity and moisture content of the atomized stream of fine droplets at a level sufficient to form convex-shaped droplets affixed to the recording material when the droplets impinge on the recording material;
- and
- (ii) drying the affixed fine droplets to form micro-projections of matting agent affixed to the recording material.
Dependencies are inferred from the claim text.