B - Operations – Transporting – 41 – L
Patent
B - Operations, Transporting
41
L
42/16
B41L 1/36 (2006.01) B41M 5/155 (2006.01) B42C 3/00 (2006.01)
Patent
CA 1106173
PROCESS FOR THE PRODUCTION OF PRESSURE SENSITIVE CARBONLESS RECORD SHEETS USING NOVEL HOT MELT SYSTEMS AND PRODUCTS THEREOF Dale R. Shackle and Ainslie T. Young, Jr. Abstract of the Disclosure A process is provided for producing a pressure-sensitive carbonless record sheet comprising the steps of preparing a hot melt coating compostion, the hot melt coating composition being water insoluble and having a melting point of from about 60° C to about 140° C. The hot melt coating composition includes a chromo- genic material. The chromogenic material is a meltable color developer of the acidic electron accepting type. The melt 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 novel liquid chromogenic coating composition is produced, the coating composition having a melting point of from about 60° C to about 140° C comprising from about 15% to about 100% of a chromogenic material and from about 0% to about 80% of a rheology modifying material, the chromogenic material being a meltable color developer of the acid electron accepting type. A pressure-sensitive record sheet is produced, the record sheet -1- comprising a substrate having a plurality of surfaces, at least one of the surfaces being coated with a set hot melt coating composition, the set hot melt suspending medium including a chromogenic material dispersed therein. -2-
277565
Shackle Dale R.
Young Ainslie T.
Ridout & Maybee Llp
The Mead Corporation
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