US 7,320,814 B2 | ||
Methods for applying a liquid to a web | ||
Gregory M. Blincoe, Paris, Tex. (US); Kent A. Franklin, Neenah, Wis. (US); Scott Delzer, Greenville, Wis. (US); and Arch Morgan, Neenah, Wis. (US) | ||
Assigned to Kimberly-Clark Worldwide, Inc., Neenah, Wis. (US) | ||
Filed on Dec. 19, 2003, as Appl. No. 10/742,549. | ||
Prior Publication US 2005/0136189 A1, Jun. 23, 2005 | ||
Int. Cl. B05D 1/02 (2006.01) |
U.S. Cl. 427—427.2 [427/8; 427/421.1] | 26 Claims |
1. A method of spraying a liquid in patterns on a moving web, the method comprising:
directing at least one intermittent spray of liquid onto the web to form a pattern on the web;
sensing a position of a leading edge of at least one of the spray and the pattern relative to one or more references on the
web;
generating a first correction signal when the leading edge of the pattern is out of position relative to the one or more references;
adjusting the spray of liquid in response to the first correction signal to correctly position a leading edge of a subsequent
pattern relative to one or more subsequent references on the web;
sensing a position of a trailing edge of at least one of the spray and the pattern relative to one or more references on the
web;
generating a second correction signal when the trailing edge of the pattern is out of position relative to the one or more
references; and
adjusting the spray of liquid in response to the second correction signal to correctly position a trailing edge of subsequent
patterns relative to one or more subsequent references on the web.
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