Method for increasing the coating speed

It is well known that coating speeds are limited due to the onset of air entrainment. These limiting coating speeds have been found to be highest on solid surfaces of intermediate wettability with respect to water, and in particular, on surfaces having high dispersion and low polar surface free ener...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	MORLEY, STEPHEN DAVID, BLAKE, TERENCE DESMOND
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL AUXILIARY PROCESSES IN PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY PERFORMING OPERATIONS PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES PHOTOGRAPHY PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHYSICS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SPRAYING OR ATOMISING IN GENERAL TRANSPORTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	It is well known that coating speeds are limited due to the onset of air entrainment. These limiting coating speeds have been found to be highest on solid surfaces of intermediate wettability with respect to water, and in particular, on surfaces having high dispersion and low polar surface free energies as determined by contact angle analysis. Described herein is a method of controlling the solid surface free energies, and hence maximum coating speeds, by using suitably chosen surfactants in subbing layers and pre-coated packs of the material being coated. Aromatic hydrocarbon ionic surfactants, such as Alkanol XC, aryl-ended sulphosuccinates and aryl-ended tricarballylates, are particularly beneficial in this respect.