| 摘要 |
<p>A stock emulsion which is a mixture in the form of an o/w emulsion consisting essentially of (A) an alkali-thickenable emulsion of a copolymer having a weight average molecular weight of at least 500,000 and being derived from (i) 2.5 to 40% by weight of an ethylenically unsaturated carboxylic acid containing 3 to 6 carbon atoms, (ii) 1 to 10% by weight of an ethylenically unsaturated monomer having one crosslinkable functional group selected from the class consisting of the group -CH2OR wherein R is a hydrogen atom or an alkyl group containing 1 to 4 carbon atoms, a glycidyl group and a hydroxyl group, (iii) 0 to 3% by weight of a monomer having an ethylenic linkage and at least one sulfonate salt group, and (iv) 47 to 96.5% by weight of another monomer having an ethylenic linkage, (B) a basic compound, and (C) a hydrophobic organic solvent, said mixture containing 3 to 12% by weight of the copolymer and not more than 2% by weight of surface active agents; and a colored printing paste for pigment printing comprising the above stock emulsion.</p> |
