Slot Die Coating Using Concave Die Lip Over Deformable Back-Up Roll

Methods and apparatuses for applying coatings on a moving web are provided. A slot die including a concave die lip coating surface and a back-up roll engage with each other. The back-up roll has a deformable inner layer with a surface thereof covered by a deformable outer layer. The slot die and the...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	MEYERS, KARA A, RATTRAY, TYLER J, DODDS, SHAWN C, SHAW, STEPHEN J, CILISKE, SCOTT L, JAVID, SAMAD, PEKUROVSKY, MIKHAIL L, DOBBS, JAMES N, SECOR, ROBERT B
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL IMPREGNATING OR COATING OF PAPER PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PERFORMING OPERATIONS PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SPRAYING OR ATOMISING IN GENERAL TEXTILES TRANSPORTING TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Methods and apparatuses for applying coatings on a moving web are provided. A slot die including a concave die lip coating surface and a back-up roll engage with each other. The back-up roll has a deformable inner layer with a surface thereof covered by a deformable outer layer. The slot die and the flexible web at a contacting area are impressed into the back-up roll with an engagement depth D, which enables formation of a coating having a substantially uniform thickness.