Pattern forming saturator

Details Pattern forming saturator Pattern forming saturator

B - Operations, Transporting

05

D

117/61, 32/74

B05D 5/00 (2006.01) B05C 3/18 (2006.01) B05D 1/18 (2006.01) D21H 21/32 (2006.01)

Patent

CA 1292152

ABSTRACT OF THE DISCLOSURE A saturator of the type which includes a chamber situated between a chamber defining element and a mandrel, in which a web is moved through the chamber to impregnate the web with a saturant contained in the chamber, includes a chamber defining element which de- fines an array of grooves. The grooves are separated by raised surfaces. The raised surfaces cooperate with the mandrel to pressurize the saturant in a high press- ure zone which causes a relatively large amount of saturant to enter the web. The grooves define respec- tive low pressure zones, which cause a reduced amount of saturant or no saturant to impregnate the web. A desired pattern of impregnation of the web can be obtained by properly positioning the grooves with respect the raised surfaces on the chamber defining element.

556175

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