An internal phase solution for a coating of rupturable material for application to a base sheet to form a pressure-sensitive record material comprises one or more color-formers of which at least 90% are monoamino and/or diamino fluoran derivatives dissolved in a solvent comprising 80% to 100% of one or more vegetable and/or animal oils. Preferably the color-formers comprise only monoamino and/or diamino fluoran derivatives and the solvent comprises only one or more vegetable and/or animal oils. Dissolution of the color-formers in the solvent may be place at a temperature in the range 100.degree. C. to 135.degree. C. and micro-capsules containing such color-former solution may be formed by conventional coacervation processes below 70.degree. centigrade.