Bulky flexible paper and process for producing the same

摘要

Produce a printing paper that offers sufficient bulk and flexibility by using a bulk-increasing/softening agent with a HLB of 6 or below, which is either a liquid or a solid with a melting point of 40° C. or below, wherein the agent may be an ester compound of polyhydric alcohol and higher fatty acid or a long-chain alkyl ammonium salt, and by adjusting the surface temperature of the paper during a preheating drying period (a period during a drying process before the temperature of a wet paper becomes constant) to at least 10° C. higher than the melting point of the bulk-increasing/softening agent.