Coating processes – Application to opposite sides of sheet – web – or strip
Patent
1983-01-18
1984-06-12
Lawrence, Evan K.
Coating processes
Application to opposite sides of sheet, web, or strip
81491, 8151, 68 5D, 427424, 427427, B05D 102
Patent
active
044541716
ABSTRACT:
A process and apparatus for treatment of continuous lengths of tubular knitted fabrics, involving wet processing, drying and then moisture conditioning of fabric. The fabric web is impregnated with a finishing resin in a wet processor, and is passed through a dryer to both eliminate the water of the processing solution and to cure the residual resin. The fabric emerging from the dryer is both extremely hot and, typically, bone dry, a condition considered unsatisfactory for gathering and further processing. In the disclosed invention, fabric enters a moisture conditioning chamber, in the lower portion, passes under a condensation guard, and then is guided vertically upward between opposed sets of finely atomizing spray nozzles. The fabric continues an upward course for a distance, and then is guided to a folder or roll up device. A wetting agent is utilized to assure thorough penetration of the spray, and advantageously this is introduced by way of incorporating a so-called re-wetting agent in the resin processing material introduced in advance of the dryer. Alternatively, a wetting agent can be incorporated in the water supply leading to the spray nozzles. A cotton fabric can have its moisture content increased by 5% or more in the conditioning process, which significantly enhances the fabric for further processing and also improves subjective characteristics of the fabric, such as hand and feel.
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Cecere Andrew P.
Diggle, Jr. Edmund A.
Lawrence Evan K.
Samcoe Holding Corporation
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