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Smokable rods of cigarettes are manufactured using wrapping materials that incorporate at least one fibrous material (e.g., flax fibers, hardwood pulp fibers and/or softwood pulp fibers) at least one filler material (e.g., calcium carbonate in particulate form). The wrapping materials possess multi-

Smokable rods of cigarettes are manufactured using wrapping materials that incorporate at least one fibrous material (e.g., flax fibers, hardwood pulp fibers and/or softwood pulp fibers) at least one filler material (e.g., calcium carbonate in particulate form). The wrapping materials possess multi-layer coatings. The wrapping materials possess coatings in the form of series of spaced apart bands, each band possessing a series of layers. At least one of the coating layers can have a filler material dispersed or suspended within a film-forming material of that layer.

대표청구항 ▼

1. A wrapping material for a smoking article, the wrapping material comprising:a base sheet possessing a major surface; a plurality of bands applied to the major surface of the base sheet in the form of a pattern; each band possessing one layer including a bottom layer applied to the major surface o

1. A wrapping material for a smoking article, the wrapping material comprising:a base sheet possessing a major surface; a plurality of bands applied to the major surface of the base sheet in the form of a pattern; each band possessing one layer including a bottom layer applied to the major surface of the base sheet, or at least two layers including the bottom layer applied to the major surface of the base sheet and an upper layer applied to the bottom layer, wherein each layer of the plurality of bands further incorporates filler; and an overcoat layer applied over the major surface of base sheet and applied over the bands. 2. The wrapping material of claim 1, wherein each band possesses at least three layers; those layers including a the bottom layer, a middle layer applied over the bottom layer, and the upper layer applied over the middle layer.3. The wrapping material of claim 2, wherein the bottom layer has a width that is equal to that of the middle layer and the upper layer.4. The wrapping material of claim 2 wherein the bottom layer has a width that is equal to that of the middle layer, and the middle layer has a width that is greater thatn that of the upper layer.5. The wrapping material of claim 2, wherein the bottom layer has a width that is greater thatn that of the middle layer, and the middle layer has a width that is equal to that of the upper layer.6. The wrapping material of claim 2, wherein the bottom layer has a width that is greater than that of the middle layer, and the middle layer has a width that is less than that of the upper layer.7. The wrapping material of claim 2, wherein the bottom layer has a width that is greater than that of the middle layer, and the middle layer has a width that is greater than that of the upper layer.8. The wrapping material of claim 2, wherein the bottom layer has a width that is less than that of the middle layer, and the middle layer has a width that is equal to that of the upper layer.9. The wrapping material of claim 2, wherein the bottom layer has a width that is less thatn that of the middle layer, and the middle layer has a width that is greater than that of the upper layer.10. The wrapping material of claim 2, wherein the bottom layer has a width that is equal to that of the middle layer, and the middle layer has a width that is less than that of the upper layer.11. The wrapping material of claim 2, wherein the bottom layer has a width that is less thatn that of the middle layer, and the middle layer has a width that is less than that of the upper layer.12. The wrapping material of claim 2, wherein band further includes a fourth layer between the middle layer and the upper layer. band is applied to the major surface of the base sheet over the primary layer.13. The wrapping material of claim 2, wherein the base sheet possesses an inherent porosity, prior to the application of the plurality of bands, of between about 40 to about 60 CORESTA units.14. The wrapping material of claim 2, wherein the base sheet possesses an inherent porosity, prior to the application of the plurality of bands, of between about 20 to about 60 CORESTA units.15. The wrapping material of claim 1, wherein at least about one of the layers incorporates a film-forming material that is soluble in a non-aqueous solvent.16. The wrapping material of claim 1, wherein at least one of the layers incorporates ethylcellulose.17. The wrapping material of claim 1, wherein at least one of the layers incorporates nitrocellulose.18. The wrapping material of claim 1, wherein each layer of the plurality of bands incorporates a film-forming material that is soluble in a non-aqueous solvent.19. The wrapping material of claim 1, wherein the filler includes calcium carbonate.20. The wrapping material of claim 1, wherein the base sheet further possesses a primary layer printed over the major surface, and the bottom layer of each band is applied to the major surface of the base sheet over the primary layer.21. The wrapping material of claim 20, wherein the primary layer includes a hydrophobic material.22. The wrapping material of claim 20, wherein the primary layer includes a film-forming material.23. The wrapping material of claim 22, wherein the film-forming material comprises ethyl cellulose.24. The wrapping material of claim 22, wherein the film-forming material comprises nitrocellulose.25. The wrapping material of claim 1, wherein each band has a width of about 4 to about 8 mm, and each band is spaced at a distance of about 10 mm to about 50 mm.26. The wrapping material of claim 1, wherein the base sheet posseses an inherent porosity, prior to the application of the plurality of bands, of between about 20 to about 60 CORESTA units.27. The wrapping material of claim 26, wherein the base sheet has a dry basis weight, prior to application of the plurality of bands, of at least about 15 g/m2 and less than about 40 g/m2, on a dry weight basis.28. The wrapping material of claima 1, wherein each band posses a center portion and two sides portions, each band possessing a lesser amount of printing formulation applied toward the center portion than toward each side portion.29. The wrapping material of claim 28, further comprising a third layer applied over the upper layer.30. The wrapping of claim 1, wherein at least one layer includes a starch-based film-forming material.31. The wrapping material of claim 1, wherein at least one layer includes a film-forming material consisting essentially of polyvinyl alcohol.32. The wrapping material of claim 1, wherein the overcoat layer comprises sodium citrate.33. The wrapping of claim 1, wherein the bottom layer has a width that is substantially equal to that of the upper layer.34. The wrapping of claim 1, wherein the bottom layer has a width that is greater than that of the upper layer.35. The wrapping material of claim 1, wherein the bottom layer has a width that is less thatn that of the upper layer.36. The wrapping material of claim 1, wherein the upper layer has a center portion and two side portions, the upper layer possessing a lesser amount of printing formulation applied toward the center portion than toward each side portion.37. The wrapping material of claim 1, wherein the overcoat layer comprises a salt.38. The wrapping material of claim 37, wherein the overcoat layer comprises sodium citrate.39. The wrapping material of claim 37, wherein the salt is applied in the amount of about 0.5 percent, basedd on the dry weight of the base sheet.40. The wrapping material of claim 37, wherein the overcoat layer comprises an alkali metal salt.41. The wrapping material of claim 37, wherein the overcoat layer comprises a phosphate salt.42. The wrapping material of claim 37, wherein the overcoat layer comprises a succinate salt.43. The wrapping material of claim 37, wherein the overcoat layer comprises a citrate salt.44. The wrapping material of claim 1, wherein the overcoat layer comprises ethyl cellulose.45. The wrapping material of claim 1, wherein each band comprises a discontinuous pattern.46. The wrapping material of claim 1, wherein the overcoat layer is continous over the major surface of the base sheet.47. The wrapping material of claim 1, wherein, in the region of the wrapping material where the bands are located, the wrapping material possesses a porosity, after the application of the plurality of bands and overcoat layer, of between about 0.1 to about 8.5 CORESTA units.48. The wrapping material of claim 47, wherein the base sheet possesses an inherent porosity, prior to the application of the plurality of bands and overcoat layer, of less than about 60 CORESTA units.49. The wrapping material of claim 1, wherein each band has a width of about 4 mm to about 8 mm, and each band is spaced at a distance of about 15 mm to about 50 mm between each band.50. The wrapping material of claim 1, wherein the base sheet possesses an inherent porosity, prior to the application of the plurality oif bands, of between about 10 to about 85 CORESTA units.51. The wrapping material of claim 1, wherein at least one layer includes a film-forming material comprising an alginate.52. The wrapping material of claim 1, wherein at least one layer includes a film-forming material comprising hydroxypropylcellulose.53. The wrapping material of claim 1, wherein the filler comprises magnesium hydroxide.54. The wrapping material of claim 1, wherein the filler comprises magnesium carbonate.55. The wrapping material of claim 1, wherein the base sheet is a wrapping material suitable as a circumscribing wrapper of a tobacco rod of a cigarette, and wherein the base sheet has a dry weight basis between about 15 g/m2and about 80 g/m2.56. The wrapping material of claim 1, wherein the base sheet is a wrapping material suitable as a circumscribing wrapper of tobacco rod of a cigarette, and wherein the base sheet has a dry weight basis betwen about 20 g/m2and about 60 g/m2.57. The wrapping material of claim 1, wherein the base sheet is a wrapping material suitable as a circumscribing wrapper of a tobacco rod of a cigarette, and wherein the base sheet incorporates a fibrous cellulosic material and a filler material.58. The wrapping material of claim 57, wherein the base sheet incorporates between about 65 percent and about 95 percent cellulosic material and, between about 5 percent and about 35 percent filler, on a dry weight basis.59. The wrapping material of claim 57, wherein the cellulosic material includes one of wood pulp, flax and combinations thereof, and the filler material includes calcium carbonate.60. The wrapping material of claim 57, wherein the base sheet possesses an inherent porosity, prior to the application of plurality of bands, of between about 20 and about 50 CORESTA units.61. The wrapping material of claim 1, wherein the pattern is a series of spaced-apart parallel bands.62. The wrapping material of claim 1, wherein the wrapping material has a longitudinal axis, and the bands are perpendicular to the longitudinal axis.63. The wrapping material of claim 62, wherein the distance between the spaced-apart parallel bands is between about 15 mm and about 50 mm.64. A wrapping material for smoking article comprising:a base sheet possessing a major surface; a plurality of bands disposed on the major surface of the base sheet in the form of a pattern; each band comprising one or mor layers disposed over the major surfae of the base sheet, wherein the base sheet further includes a primary layer printed over the major surface, and the plurality of bands is disposed over the primary layer; and an overcoat layer disposed over the major surface of the base sheet and applied over the one or more bands; wherein the wrapping material has a first porosity of less than about 8.5 CORESTA units in a region of the base sheet covered by the bands and a second porosity of greater than about 15 CORESTA units in a region of the base sheet not covered by the bands. 65. The wrapping material of claim 64, wherein the second porosity is between about 20 and about 85 CORESTA units.66. The wrapping material of claim 64, wherein the second porosity is between about 20 and about 60 CORESTA units.67. The wrapping material of claim 64, wherein the second porosity is between about 40 and about 50 CORESTA units.68. The wrapping material of claim 64, wherein the first porosity is between about 0.1 and 4 CORESTA units.69. The wrapping material of claim 64, wherein the overcoat layer comprises an alkali earth metal salt.70. The wrapping material of claim 64, wherein the overcoat layer comprises a phosphate salt.71. The wrapping material of claim 64, wherein the overcoat layer comprises a succinate salt.72. The wrapping material of claim 64, wehrein the overcoat layer comprises a citrate salt.73. The wrapping material of claim 64, wherein the bands incorporates a film-forming material that is soluble is a non-aqueous solvent.74. The wrapping material of claim 73, wherein the bands further incorporate a filler.75. The wrapping material of claim 73, wherein the filler is selected from the group consisting of calcium carbonate, magnesium carbonate and magnesium hydroxide.76. The wrapping material of claim 64, wherein the film-forming material is selected from the group consisting of ethyl cellulose, nitrocellulose and combinations thereof.77. The wrapping material of claim 64, wherein the film-forming material is ethyl cellulose.78. The wrappping material of claim 64, wherein the bands incorporates a film-forming material that is soluble in an aqueous solvent.79. The wrapping material of claim 78, wherein the film-forming material is selected from the group consisting of hydroxypropylcellulose, polyvinyl alcohol, alginates and starch-based materials.80. The wrapping material of claim 64, wherein the primary layer incorporates a hydrophobic material.81. The wrapping material of claim 64, wherein the plurality of bands is disposed on the base sheet to form a pattern of spaced-apart parallel bands.82. The wrapping material of claim 81, wherein each band has a width between about 4 mm and about 8 mm, and each band is spaced at a distance between about 15 mm and about 50 mm from the next band.83. The wrapping material of claim 81, wherein each of the bands comprises two to four layers, and each layer in a band has substantially the same width as other layers in the band.84. The wrapping material of claim 64, wherein each band comprises a discontinuous pattern.85. The wrapping material of claim 64, wherein the overcoat layer is continuous over the major surface of th base sheet.86. The wrapping material of claim 64, wherein the major surface of the base sheet is the wire side of the base sheet.87. The wrapping material of claim 64, wherein the base sheet is a wrapping material suitable as a circumscribing wrapper of a tobacco rod of a cigarette, and wherein the base sheet has a dry weight basis between about 15 g/m2and about 80 g/m2.88. The wrapping material of claim 64, wherein, the base sheet is a wrapping material suitable as a circumscribing wrapper of a tobacco rod of a cigarette, and wherein the base sheet has a dry weight basis between about 20 g/m2and about 60 g/m2.89. The wrapping material of claim 64, wherein the base sheet is a wrapping material suitable as a circumscribing wrapper of a tobacco rod of a cigarette, and wherein the base sheet incorporates a fibrous cellulosic material and a filler material.90. The wrapping material of claim 89, wherein the base sheet incorporates between about 65 percent and about 95 percent cellulosic material, and between about 5 percent and about 35 percent filler, on a dry weight basis.91. The wrapping material of claim 89, wherein the cellulosic material includes one of wood pulp, flax and combinations thereof, and the filler material includes calcium carbonate.92. The wrapping material of claim 89, wherein the base sheet possesses an inherent porosity, prior to the application of the plurality of bands, of between about 20 and about 50 CORESTA units.93. The wrapping material of claim 64, wherein the pattern is a series of spaced-apart parallel bands.94. The wrapping material of claim 93, wherein the wrapping material has a longitudinal axis, and the bands are perpendicular to the longitudinal axis.95. The wrapping material of claim 94, wherein the distance between the spaced-apart parallel bands is between about 15 mm and about 50 mm.96. A smoking article comprising a smokable material contained within a wrapping material, the wrapping material comprising:a base sheet possessing a major surface; one or more bands applied to the major surface of the base sheet in the form of a pattern, each band comprising at least a bottom layer applied over the major surface of the base sheet and an upper applied over the bottom layer; and an overcoat layer applied over the major surface of the base and applied over the one or more bands. 97. The smoking article claim 96, wherein each band of the wrapping material further comprises a middle layer between the bottom layer and the upper layer.98. The smoking article of claim 96, wherein each band of the wrapping material further comprises a first middle layer and a second middle layer between the bottom layer and the upper layer.99. The smoking article of claim 96, wherein at least one of the layers of the bands of the wrapping material includes a hydrophobic film-forming material.100. The smoking article of claim 99 wherein the film-forming material includes ethyl cellulose.101. The smoking article of claim 99, wherein the film-forming material includes nitrocellulose.102. The smoking article of claim 96, wherein at least one of the bottom layer or upper layer includes a film-forming material comprising a starch-based material.103. The smoking article of claim 96, wherein at least one of the bottom layer or the upper layer includes a film-forming material comprising polyvinyl alcohol.104. The smoking article of claim 96, wherein at least one of the bottom layer of the upper layer includes a film-forming material comprising an alginate.105. The smoking article of claim 96, wherein each band of the wrapping material has a width of about 4 mm to about 8 mm.106. The smoking article of claim 96, wherein the smoking article is in the form of a rod and the one or more bands transversely circumscribe the rod.107. The smoking article of claim 96, wherein smoking article comprise two or more bands spaced-apart at a distance of about 15 mm to about 50 mm between each band.108. The smoking article of claim 96, wherein the base sheet of the wrapping material possesses an inherent porosity, prior to the application of the plurality of bands, of between about 10 to about 85 CORESTA units.109. The smoking article of claim 96, wherein the inherent porosity of the base sheet is about 20 to about 60 CORESTA units.110. The smoking article of claim 96, wherein the inherent porosity of the base sheet is about 40 to about 60 CORESTA units.111. The smoking article of claim 96, wherein the inherent porosity of the base sheet is about 40 to about 50 CORESTA units.112. The smoking article of claim 96, wherein the base sheet of the wrapping material has a dry basis weight, prior to the application of one or more bands, of at least about 15 g/m2and less than about 40 g/m2, on a dry weight basis.113. The smoking article of claim 96, wherein the overcoat layer of the wrapping material comprises a salt.114. The smoking article of claim 96, wherein the overcoat layer comprises an alkali earth metal salt.115. The smoking article of claim 96, wherein the overcoat layer comprises a citrate salt.116. The smoking article of claim 115, wherein the citrate salt is sodium citrate.117. The smoking article of claim 96, wherein the overcoat layer comprises a phosphate salt.118. The smoking article of claim 96, wherein the overcoat layer comprises a succinate salt.119. The smoking article of claim 96, wherein the overcoat layer comprises nitrocellulose.120. The smoking article of claim 96, wherein the overcoat layer comprises ethyl cellulose.121. The smoking article of claim 96, wherein, in the region of the wrapping material where the bands are located, the wrapping material possesses a porosity of between about 0.1 CORESTA units to about 8. 5 CORESTA units.122. The smoking article of claim 96, wherein the one or more bands are on a side of the wrapping material facing the smoking material.123. The smoking article of claim 96, wherein the base sheet is a wrapping material suitable as a circumscribing wrapper of a tobacco rod of a cigarette, and wherein the base sheet has a dry weight basis between between about 20 g/m2and about 60 g/m2.124. The smoking article of claim 96, wherein the base sheet is a wrapping material suitable as a circumscribing wrapper of a tobacco rod of a cigarette, and wherein the base sheet incorporates a fibrous cellulosic material and a filler material.125. The smoking article of claim 124, wherein the base sheet incorporates between about 65 percent and about 95 percent cellulosic material, and between about 5 percent and about 35 percent filler, on a dry weight basis.126. The smoking article of claim 124, wherein the cellulosic material includes one of wood pulp, flax and cominations thereof, and the filler material includes calcium carbonate.127. A smoking article comprising a rod of smokable tobacco material and a wrapping material circumscribing the rod of smokable tobacco material, the wrapping material comprising:a base sheet possessing a major surface; two or more bands disposed over the major surface of the base sheet in the form of a pattern; each band comprising at least two layers disposed over the major surface of the base sheet; and an overcoat layer disposed over the major surface of the base sheet and over the two or more bands; wherein the wrapping material has a first porosity of less than about 8.5 CORESTA units in a region of the base sheet covered by the bands and a second porosity of greater than about 15 CORESTA units in a region of the base sheet not covered by the bands. 128. The smoking article of claim 127, wherein the pattern is a series of spaced-apart parallel bands, each band transversely circumscribing the rod.129. The smoking article of claim 128, wherein each band has a width of about 4 mm and about 8 mm, and each band is spaced at a distance of about 10 mm to about 50 mm between each band.130. The smoking article of claim 127, wherein the bands incorporate a film-forming material that is soluble in a non-aqueous solvent.131. The smoking article of claim 130, wherein the film-forming material comprises ethyl cellulose.132. The smoking article of claim 130, wherein the film-forming material comprises nitrocellulose.133. The smoking article of claim 127, wherein the bands are disposed on a side of the wrapping material facing the rod of tobacco.134. The smoking article of claim 127, wherein the major surface of the base sheet is a wire side of the base sheet.135. The smoking article of claim 127, wherein each band comprises at least three layers, a bottom layer over the base sheet, a middle layer over the bottom layer, and a top layer over the middle layer.136. The smoking article of claim 135, wherein each band further comprises an intermediate layer between the middle layer and the upper layer.137. The smoking article of claim 135, wherein the second porosity is greater than about 40 CORESTA units.138. The smoking article of claim 135, wherein the bottom layer, the middle layer and the upper layer each have substantially the same width.139. The smoking article of claim 138, wherein the width is between about 4 mm and about 8 mm, and a distance between each of the two or more bands is between about 10 mm and about 50 mm.140. The smoking article of claim 139, wherein the overcoat layer comprises an alkali metal salt.141. The smoking article of claim 127, wherein the base sheet incorporates an alkali metal salt.142. A smoking article comprising a smokable material contained within a wrapping material, the wrapping material comprising:a base sheet possessing a major surface and having a dry weight basis between about 15 g/m2 and 80 g, the base sheet incoporating a fibrous cellulosic material and a filter material; one or more bands disposed on the major surface of the base sheet in the form of a pattern; the one or more bands comprising at least one layer applied over the major surface of the base sheet; the at least one layer comprising a film-forming material and a filler; and an overcoat layer disposed over the major surface of the base sheet and over the one or more brands. 143. The smoking article of claim 142, wherein the pattern comprises the one or more bands transversely circumscribing the rod.144. The smoking article of claim 143, comprising between two and four bands in a parallel about 10 mm and about 50 mm, and wherein a width of the bands is between about 4 mm and about 8 mm.145.The smoking article of claim 142, wherein the base sheet incorporatesx am alkali metal salt.146. The smoking article of claim 142, wherein the ovecoat layer is continuous over the major surface of the base sheet.147. The smoking article of claim 142, wherein the base sheet incorporates an alkali metal salt.148. The smoking article of claim 142, wherein the overcoat layer is discontinuous over the major surface of the base sheet.149. The smoking article of claim 142, wherein the at least one layer of the band is discontinuous.150. The smoking article of claim 142, wherein the film-forming material is soluble in a non-aqueous solvent.151. The smoking article of claim 150, wherein the film-forming material comrprises ethyl cellulose.152. The smoking article of claim 142, wherein the base sheet of the wrapping material possesses an inherent porosity, prior to the application of the plurality of bands, of between about 10 to about 85 CORRESTA units.153. The smoking article of claim 152, wherein, in the region of the wrapping material suitable as a circumscribing wrapper of a tobacco rod of a cigarette, and wherein the base sheet has a dry weight basis between about 20 g/m2 and about 60 g/m2.154. The smoking article of claim 142, wherein the base sheet is a wrapping material suitable as a circumscribing wrapper of a tobacco rod of a cigarette, and wherein the base sheet has a dry weight basis between about 20 g/m2 and about 60 g/m2.155. The smoking article of claim 142, wherein the base sheet is a wrapping material suitable as a circumscribing wrapper of a tobacco rod of a cigarette, and wherein the base sheet has a dry weight basis between about 20 g/m2 and about 60 g/m2 .156. The smoking article of claim 142, wherein the base sheet incorporates between about 65 percent and about 95 percent cellulosic material, and between about 5 percent and about 35 percent filler, on a dry weight basis.157. The smoking article of claim 142, wherein at least one of the filler in the base sheet and the filler in the at least one layer comprises calcium carbonate.158. The smoking article of claim 142, further comprising a continuous primary layer between the base sheet and the one or more bands.159. A smoking article comprising a smokable material contained within the wrapping material of claim 1 or claim 64.