Production of striped coatings on strip

Details Production of striped coatings on strip Production of striped coatings on strip

B - Operations, Transporting

05

D

B05D 1/40 (2006.01) B05C 9/00 (2006.01) B05C 9/14 (2006.01) B05C 11/02 (2006.01) B05D 1/26 (2006.01) B05D 5/06 (2006.01)

Patent

CA 2266885

An apparatus and method for producing a striped coating on a continuous moving strip. The apparatus has a smoothing device including a doctor roll (4) forming a nip with the strip (5). A stationary partition means (8) is provided dividing the nip into nip lengths. Upstream of the smoothing device (4, 5) is a means to deposit coating materials on the strip (5) for delivery into the respective nip lengths at predetermined rates. The deposit means maintain a bead (9) of coating material in each nip length and a stripe of coating material is formed on the strip from coating material escaping the respective nip length as the strip (5) passes through the nip.

La présente invention concerne un appareil et un procédé de formation d'un revêtement à stries sur une bande continue en mouvement. L'appareil comporte un lissoir pourvu d'un rouleau-doseur (4) prenant en pince la bande (5). Un séparateur stationnaire (8) vient diviser la zone de pince en longueurs de contact. En amont du lissoir (4, 5) se trouve un distributeur de matériau de revêtement de la bande (5) distribuant les différentes longueurs de contact à des cadences définies. Le distributeur entretient un cordon (9) de matériau de revêtement dans chaque longueur de contact, ce qui fait qu'au fur et à mesure que la bande (5) défile dans la pince, une strie de matériau de revêtement quitte la longueur de contact et vient se déposer sur la bande.

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