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EP-4734775-A1 - AEROSOL GENERATING MATERIAL

EP4734775A1EP 4734775 A1EP4734775 A1EP 4734775A1EP-4734775-A1

Abstract

Aerosol generating material The present disclosure relates to an aerosol generating material comprising a first surface and a second surface and indentations on the first surface and/or the second surface. A method for manufacturing the aerosol-generating material and articles comprising the aerosol-generating material are also disclosed.

Inventors

  • CRAINIC, Alina-Mariana
  • JENKINS, BENJAMIN

Assignees

  • Nicoventures Trading Limited

Dates

Publication Date
20260506
Application Date
20240628

Claims (20)

  1. Claims i. An aerosol generating material comprising a first surface and a second surface and indentations on the first surface and/or the second surface.
  2. 2. An aerosol generating material comprising one or more elongate strips, wherein each strip comprises a first surface and a second surface and indentations on the first surface and/or the second surface.
  3. 3. An aerosol generating material comprising a sheet, wherein the sheet comprises a first surface and a second surface and indentations on the first surface and/or the second surface.
  4. 4. The aerosol generating material according to any preceding claim, wherein the indentations have the shape selected from a group consisting of: circular, semi-circular, crescent, square, triangle, Y-shape, lines, rectangle, cone or star.
  5. 5. The aerosol generating material according to any preceding claim, wherein the indentations comprise a length and a width and an average width of the indentations of about o.oi to about 5 mm.
  6. 6. The aerosol generating material according to any preceding claim, wherein the indentations have a length and a width, and wherein the length and the width have a ratio of about 1:0.25 to about 1:10.
  7. 7. The aerosol generating material according to claim 5 or 6, wherein the length of the aerosol generating material is at most about 34 mm.
  8. 8. The aerosol generating material according to any preceding claim, wherein each of the indentations have a volume of about 0.00001 to about 10 mm3.
  9. 9. The aerosol generating material according to any preceding claim, wherein the average volume density of the aerosol generating material is from about 0.4 g/cm3 to about 1 g/cm3.
  10. 10. The aerosol generating material according to any preceding claim, wherein the aerosol generating material comprises about 100 to about 500 indentations per cm 2 .
  11. 11. The aerosol generating material according to any preceding claim, wherein the thickness of the aerosol generating material is from about 100 pm to 350 pm.
  12. 12. The aerosol generating material according to any preceding claim, wherein the thickness of the aerosol generating material increases by about 10 to 40%, compared to an equivalent material without the indentations.
  13. 13. The aerosol generating material according to any preceding claim, wherein the aerosol generating material has a tensile strength of at least 3 N/ismm.
  14. 14. The aerosol generating material according to any preceding claim, wherein the aerosol generating material comprises water, optionally wherein the aerosol water content is up to about 15% by weight of the aerosol generating material.
  15. 15. The aerosol generating material according to any preceding claim, wherein the aerosol generating material comprises botanical material.
  16. 16. The aerosol generating material according to claim 15, wherein the aerosol generating material comprises a botanical material content of from about 50 to about 80% by weight of the aerosol generating material.
  17. 17. The aerosol generating material according to any preceding claim, wherein the aerosol generating material comprises at least one binder.
  18. 18. The aerosol generating material according to claim 17, wherein the aerosol generating material comprises a binder content of from 5 to about 40% by weight of the aerosol generating material.
  19. 19. The aerosol generating material according to any preceding claim, wherein the aerosol generating material is in a form selected from a group consisting of: sheet, shredded sheet, gathered sheet, rod or strand.
  20. 20. An article for use in a non-combustible aerosol-provision system comprising an aerosol-generating section comprising the aerosol generating material according to any preceding claim.

Description

Aerosol generating material Technical Field The present disclosure relates to an aerosol-generating material, a method for manufacturing an aerosol-generating material and articles comprising aerosol- generating material. Background Aerosol provision products produce an aerosol during use, which is inhaled by a user. For example, tobacco heating devices heat an aerosol generating material such as tobacco to form an aerosol by heating, but not burning, the substrate. Such an aerosol provision product commonly includes an aerosol-generating section or region, which generate an aerosol in use, and a mouthpiece through which the aerosol passes to reach the user’s mouth. Such products suffer from the problem that the aerosol generating material is packed tightly into the product, which may make it relatively difficult for the user to draw air through the aerosol provision product. Consequently, the user may receive a poorer sensory experience. Summary According to a first aspect of the invention, there is provided an aerosol generating material comprising a first surface and a second surface and indentations on the first surface and/ or the second surface. According to a second aspect of the invention, there is provided an aerosol generating material comprising one or more elongate strips, wherein each strip comprises a first surface and a second surface and indentations on the first surface and/ or the second surface. According to a third aspect of the invention, there is provided an aerosol generating material comprising a sheet, wherein the sheet comprises a first surface and a second surface and indentations on the first surface and/or the second surface. In some embodiments, the indentations have the shape selected from a group consisting of: circular, semi-circular, crescent, square, triangle, y-shape, lines, rectangle, cone or star. In some embodiments, the indentations comprise a length and a width and an average width of the indentations of about o.oi to about 5 mm. In some embodiments, the indentations have a length and a width, and wherein the length and the width have a length:width ratio of about 1:0.25 to about 1:10. In some embodiments, the length of the aerosol generating material is at most about 34 mm. In some embodiments, each of the indentations have a volume of about 0.00001 mm3 to about 10 mm3. In some embodiments, the average volume density of the aerosol generating material is from about 0.4 g/cm3 to about 1 g/cm3. In some embodiments, the aerosol generating material comprises about 100 to about 500 indentations per cm2. In some embodiments, the thickness of the aerosol generating material is from about 100 pm to 350 pm. In some embodiments, the thickness of the aerosol generating material increases by about 10 to 40%, compared to an equivalent material without the indentations. In some embodiments, the aerosol generating material has a tensile strength of at least 3 N/i5mm. In some embodiments, the aerosol generating material comprises water. In some embodiments, the aerosol generating material comprises a water content of 0% to about 15% by weight of the aerosol generating material. In some embodiments, the aerosol generating material comprises botanical material. In some embodiments, the aerosol generating material comprises a botanical material content of from about 50 to about 80% by weight of the aerosol generating material. In some embodiments, the aerosol generating material comprises at least one binder. In some embodiments, the aerosol generating material comprises a binder content of from 5 to about 40% by weight of the aerosol generating material. In some embodiments, the aerosol generating material is in a form selected from a group consisting of: sheet, shredded sheet, gathered sheet , rod or strand. According to a fourth aspect of the invention, there is provided an article for use in a non-combustible aerosol-provision system comprising an aerosol-generating section comprising the aerosol generating material according to any preceding claim. In some embodiments, the article has a pressure drop between an upstream end and a downstream end of the article is from about 40 to about 120 mmWg. In some embodiments, the article comprises an aerosol-generating section and a pressure drop across the aerosol-generating section is from 50 to about 500 mmWg. According to a fifth aspect of the invention, there is provided a method of producing the aerosol generating material according to any one of claims 1 to 20, wherein the method comprises forming an aerosol-generating material composition, impressing recesses into a surface of the aerosol generating composition to form indentations in the surface and drying the aerosol generating composition to form the aerosol-generating material comprising the indentations. In some embodiments, the aerosol generating material is prepared by extruding an aerosol generating composition. According to a further aspect of the invention, there is pr