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Patent Searching and Data


Title:
WEB SUPPORTING FOIL
Document Type and Number:
Japanese Patent JPH11124785
Kind Code:
A
Abstract:

To provide a tissue web supporting apparatus capable of reducing paper breaks and the amount of dust occurring in scraping a tissue web from the surface of a yankee dryer.

This web supporting foil is installed in the vicinity of a yankee dryer over a creping doctor 24 and the foil supports a web when it is separated from the dryer. An adjustable air deflector 46 which is tangentially arranged on the yankee dryer is attached to the top of the foil. Air moving along the web is screened by the air deflector 46. An opening part with small holes sucks air from a tip pocket 44 for collecting fibers broken in creping treatment. The web is retained at the bottom side of the foil by one or more air jets directed toward the bottom of the foil. The air jets function as a Coanda air jet and generates Bernoulli's effect for retaining the web on the bottom of the foil while preventing the adhesion of the web to the bottom of the foil.


Inventors:
BROWN DALE A
KRAMER GERALD J
PAGE ROBERT E
SMITH DAVID A
Application Number:
JP1998000238600
Publication Date:
May 11, 1999
Filing Date:
August 25, 1998
Export Citation:
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Assignee:
BELOIT TECHNOLOGIES INC
International Classes:
D21F1/52; D21F5/00; D21F7/00; D21G3/00; D21G9/00; (IPC1-7): D21F1/52
Attorney, Agent or Firm:
石川 新 (外1名)