The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 09, 1986
Filed:
Sep. 22, 1982
Nilo I Salmeen, deceased, late of Neenah, WI (US);
Bernard G Klowak, Neenah, WI (US);
James River-Norwalk, Inc., Norwalk, CT (US);
Abstract
Two or more webs (11 and 12) of highly bulked substrate are passed into a nip formed between a gravure roller (14) and an impression roller (15). The impression roller has raised areas defining an interconnected network of lines such that the webs are compressed only under the raised areas; as a result, the binding liquid applied by the gravure roller (14) to the laminate of the two webs is absorbed substantially through the webs in the compressed areas. The gravure roller (14) may have a uniform surface, such that a light coating of binding liquid is applied to the surface of the uncompressed areas in the laminate, or the gravure roller may have a pattern of etched grooves or cells which matches and registers with the pattern of raised areas on the impression roller. In the latter embodiment, binding liquid will be absorbed into the laminate only in the compressed areas. The coated laminate (21) is applied to the surface (24) of a creping cylinder (25), is dried thereon, and is creped off with a creping blade (27) to form a laminated product bound together by an interconnected network of lines of strength extending through the laminate. The areas between the lines of strength are not compressed and are not substantially coated with binding liquid, and thereby retain high bulk and absorbency. In a modified embodiment of the invention, a single impression/pressure roller and raised areas thereon is used to join and press the webs against a gravure roller and to apply the webs to a creping cylinder; and in a second modified embodiment, the web laminate is pressed and coated on one side, is substantially hot air dried without compression, is coated with binding liquid applied to the outer side, and is then applied to the creped from a creping cylinder.