Multifunctionally usable coating dispersion for printing substrates
OwnerJosef Weigl, Christian Weigl +1inventors
InventorsJosef Weigl, Christian Weigl, Konrad Goebel
Life of this patent
Estimating the term…
Abstract
The disclosure relates to a coating dispersion for coating printing substrates, especially paper and paperboard. Said dispersion is constituted of at least one defined percentage of water, a defined percentage of a swellable phyllosilicate and a defined percentage of a cross-linking agent. The cross-linking agent forms a bond with at least one functional group of the phyllosilicate as well as with at least one functional group of the printing substrate. The invention also relates to a method for producing a coated printing substrate onto which a coating dispersion is mechanically applied and dried, whereby the coating dispersion comprises at least the aforementioned components.
Claims20
A coating dispersion for the coating of printing substrates, including one or more of paper and paperboard, the coating dispersion comprising:
- a predetermined portion of water;
- a predetermined portion of at least one swellable phyllosilicate;
- a predetermined portion of a cross-linking agent, which forms a chemical bond both with at least one silanol group of the phyllosilicate, and also with at least one functional group of the printing substrate.
Method for producing a coated printed substrate, comprising:
- machine application of a coating dispersion on a printing substrate, whereas the coating dispersion has at least the following components:
- a predetermined portion of water;
- a predetermined portion of at least one swellable phyllosilicate;
- a predetermined portion of a cross-linking agent, which forms a bond both with at least one functional group of the phyllosilicate, and with at least one functional group of the printing substrate;
- drying of the coating dispersion applied.
Dependencies are inferred from the claim text.