| 摘要 |
A process for separating a collated stack of pressure-sensitive copying sets comprises pre-treating the edge of a stack of sheets of pressure-sensitive copying paper to be padded with a liquid pre-treating composition, drying the edge, applying an adhesive composition to the edge, drying the adhesive composition and separating the unit sets. The pre-treating composition may be water, an aqueous solution, an aqueous dispersion, a hydrocarbon or a paint, selected to enhance bonding between sheets by the adhesive where adjacent surfaces are reactant-coated and to inhibit it where adjacent surfaces are not coated. |
