Method for coating textile bases with powdery synthetic material
AssigneeSchaetti & Co.
InventorJosef Schaetti
Life of this patent
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Abstract
A method for coating textile bases with a specified pattern of synthetic powder wherein the synthetic powder is applied to a water-cooled engraved roller and transferred to a textile base material while being under heat treatment for a substantial portion of the travel of the textile base along the application roller. Such heat treatment is provided by heat emitters external to the application roller thereby providing heating of the textile base and the powder through it.
Claims10
In a method for coating a textile base with powdery synthetic material by means of an engraved water-cooled application roll on which the powdery synthetic material is spread at a powder application station and transferred under heat treatment onto the textile base and is resintered, the improvement comprising;
- preheating said textile base by means of heat radiation, guiding said textile base around and in contact with the watercooled engraved application roller while being heated by radiation heat emitters in one or several stages along a portion external to the circumference of the application roller with the powder being sintered on the base over a relatively large transfer zone during a substantial portion of travel of said application roller.
Dependencies are inferred from the claim text.