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    • 3. 发明授权
    • Cigarettes
    • 香烟
    • US4088142A
    • 1978-05-09
    • US728408
    • 1976-09-30
    • Henry G. HorsewellRobin A. Crellin
    • Henry G. HorsewellRobin A. Crellin
    • B26F1/28A24D1/02A24B15/00
    • D21H5/16A24D1/027D21H5/025D21H27/00D21H27/005
    • The invention is concerned with a wrapped cigarette and a method of producing the wrapper. A very highly porous wrapping paper, with an air porosity within the range from 2,450 to 20,000cm.sup.3 min.sup.-1 10cm.sup.-2 10cmWG.sup.-1 is produced by perforation from a base paper having a tensile breaking strength of not less than 85 g per mm width of paper. The means number of perforations is suitably within the range from 10 to 150 per cm.sup.2 of the paper and the mean diameter within the range from 30 to 200 microns. A cigarette wrapped in the highly porous paper may advantageously be provided with a tobacco-smoke filter having a filtration efficiency for nicotine within the range of 15 to 30%.
    • 本发明涉及卷烟和生产包装的方法。 空气孔隙率在2,450至20,000cm3min-110cm-210cmWG-1范围内的非常高度多孔的包装纸通过从每张宽度不超过85g的拉伸断裂强度的原纸穿孔而产生。 穿孔的平均数适当地在每平方厘米纸张10至150的范围内,平均直径在30至200微米的范围内。 包裹在高度多孔纸中的香烟可以有利地设置有对尼古丁的过滤效率在15至30%范围内的烟草烟雾过滤器。