Packaged pigment pastes and process for coloring and toning water-diluted coating agents

Claim 1

A film pack consisting of a bag of a water-soluble film selected from the group consisting of polyvinyl alcohol or carboxyalkyl cellulose in film form, said film being folded to form containers and sealed on all sides, and enclosed therein a pigment paste consisting essentially of the components: (I) at least one pigment selected from the group consisting of inorganic pigments, organic pigments and mixture thereof; (II) at least one extender; (III) 10-80% be weight, based on the total weight of components (I) and (II), of a component selected from the group consisting of monohydric primary aliphatic straight chain alkanols having 1 to 4 carbon atoms, monohydric secondary aliphatic straight chain alkanols having 1 to 4 carbon atoms, monohydric tertiary aliphatic straight chain alkanols having 1 to 4 carbon atoms, monohydric branched alkanols having 1 to 4 carbon atoms, alkylene glycols, alkylene glycol monoalkyl ethers with 1 to 4 carbon atoms in the alkyl radical, polyalkylene glycols, polyalkylene glycol monoalkyl ethers with 1 to 4 carbon atoms in the alkyl radical, alicyclic alcohols, araliphatic alcohols, and unsaturated alcohols; and (IV) 5-20% by weight, relative to the content of components (I) and (II) of at least one of wetting agents, dispersing agents or emulsifiers selected from the group consisting of fatty alcohols, fatty alcohol sulphonates, alkyl-aryl-sulphonates, alkyl-aryl-polyglycol ethers, fatty acid amines, mono-di- and tri-alkanolamines, fatty alcohol oxethylates, fatty acid alkanolamides, alkali metal salts of polyacrylic acids, soya lecithin and polyethylene oxide, which are different from and soluble in component (III), whereby said water-soluble film is diffusion-tight in respect to the solvents in the pigment paste and whereby said brittle water-soluble film becomes more flexible and more resistant to mechanical stress by the presence of component III with component IV in said pigment paste forming a plasticizing of said water-soluble film so that said bag is stored without coagulation and agglomeration and that said bag dissolves in a water-diluted coating agent in which said bag is compatible and forms a homogeneous coating of uniform color after curing or drying said coating.