SLIT NOZZLE FOR COATING STRIPS OF MATERIAL, ESPECIALLY PAPER OR BOARD STRIPS, WITH A PIGMENT COATING

A slot nozzle for coating webs of material, for example, paper, paperboard, cardboard, with a flowable coating substance, for example, a pigment coating, has a slot shaped outlet channel to which a distribution chamber extending over the width of the web is connected. A plurality of supply conduits...

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Bibliographic Details
Main Authors FAERBER, ALBRECHT, BECKER, INGO, GENENGER, BERND, BOHNENKAMP, BERND, SUENDERHAUF, GERHARD, BRAND, MAX, KNOP, REINHARD
Format Patent
LanguageEnglish
French
German
Published 04.10.2000
Edition7
Subjects
IMPREGNATING OR COATING OF PAPER
PAPER NOT OTHERWISE PROVIDED FOR
PAPER-MAKING
PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D
PRODUCTION OF CELLULOSE
PULP COMPOSITIONS
TEXTILES
TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
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Summary:A slot nozzle for coating webs of material, for example, paper, paperboard, cardboard, with a flowable coating substance, for example, a pigment coating, has a slot shaped outlet channel to which a distribution chamber extending over the width of the web is connected. A plurality of supply conduits are connected to the distribution chamber in spaced relationship across the width of the web and the length of the outlet channel and each supply conduit has a valve for adjusting the volume flow of the coating liquid. A respective diffuser is provided between each supply conduit and the distribution chamber and widens in the direction of the latter.
Bibliography:Application Number: EP19980956850