A FILTER WRAPPER PAPER FOR A SMOKING ARTICLE IS SHOWN, THE PAPER HAVING A CONTENT OF LONG-FIBER PULP OF AT LEAST 30 WT%, PREFERABLY AT LEAST 40 WT%, RELATIVE TO THE PURE FIBER MASS OF THE PAPER. THE FREENESS OF THE LONG-FIBER PULP AS PER ISO 5267, SCHOPPER-RIEGLER METHOD, IS BETWEEN 80 °SR AND 100 °SR, PREFERABLY BETWEEN 85 °SR AND 95 °SR. THE FILTER WRAPPER PAPER HAS A FILLER CONTENT OF LESS THAN 10 WT%, PREFERABLY LESS THAN 8 WT%, AND ESPECIALLY PREFERABLY LESS THAN 6 WT% RELATIVE TO THE TOTAL MASS OF THE PAPER AND IS IMPREGNATED WITH A MATERIAL THAT IS SUITABLE FOR FORMING AN AQUEOUS COMPOSITION, MORE PARTICULARLY AN AQUEOUS SOLUTION OR AN AQUEOUS SUSPENSION. THE OIL-RESISTANCE OF THE FILTER WRAPPER PAPER HAS A KIT LEVEL OF AT LEAST 4, PREFERABLY AT LEAST 5, ACCORDING TO TAPPI T559 CM-O2.
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