Production of pressure-sensitive carbonless record sheets using dioic acid hot melt systems and products thereof
Abstract
Abstract A process is provided for producing a pressure-sensitive carbonless record sheet comprising the steps of preparing a hot melt coating composition, the hot melt coating composition having a melting point of from about 60° C. to about 140° C. The hot melt coating composition comprises a chromogenic material and a solid alkane dioic acid. The hot melt coating composition is heated to a temperature above its melting point and the heated coating composition is applied to a substrate, the coating composition being applied at a coat weight of from about 0.2 pounds to about 8.0 pounds per 3300 square feet of substrate. The coating composition is set by cooling the coated substrate. A pressure-sensitive carbonless record sheet comprising a substrate having a plurality of surfaces and at least one surface of which is coated with about 0.2 pounds to about 8 pounds per 3300 square feet of a set hot melt coating composition is produced. The set hot melt coating composition has a melting point of from about 60° C. to about 140° C. and comprises a chromogenic material and a solid alkane dioic acid. A novel hot melt chromogenic coating composition having a melting point of from about 60° C. to about 140° C. and comprising a chromogenic material and a solid alkane dioic acid is produced.
Inventors
- 👤 Frederick W. Sanders
Bibliographic Details
Claims Analysis
Total Claims: 5References Cited (Backward Citations)
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