Wrappers for smoking articles having reduced diffusion leading to reduced ignition proclivity characteristics
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A24D-001/00
A24D-001/02
D21H-011/00
D21H-013/00
출원번호
US-0035045
(2008-02-21)
등록번호
US-8807144
(2014-08-19)
발명자
/ 주소
Hampl, Jr., Vladimir
Gu, Alice
Rossi-Espagnet, James
출원인 / 주소
Schweitzer-Mauduit International, Inc.
대리인 / 주소
Dority & Manning, P.A.
인용정보
피인용 횟수 :
1인용 특허 :
70
초록▼
Smoking articles having reduced ignition proclivity characteristics are disclosed. The smoking articles include a wrapper comprising cellulosic fibers and a filler. In accordance with the present disclosure, the filler has a particle size of at least about 3.2 microns and is present in the wrapper i
Smoking articles having reduced ignition proclivity characteristics are disclosed. The smoking articles include a wrapper comprising cellulosic fibers and a filler. In accordance with the present disclosure, the filler has a particle size of at least about 3.2 microns and is present in the wrapper in an amount less than about 20% by weight. Further, the wrapper may have a basis weight of less than about 23 gsm and a permeability of from about 15 Coresta to about 110 Coresta. It has been discovered that such wrappers are capable of reducing the ignition proclivity characteristics of a smoking article. If desired, the particular wrapper as described above can also contain discrete areas treated with an ignition reducing composition which further serves to reduce the ignition proclivity characteristics of the article.
대표청구항▼
1. A smoking article having reduced ignition proclivity characteristics comprising: a column comprising a smokable tobacco;a wrapper surrounding the column of the smokable tobacco, the wrapper comprising cellulosic fibers and at least one filler, wherein the at least one filler comprises a calcium c
1. A smoking article having reduced ignition proclivity characteristics comprising: a column comprising a smokable tobacco;a wrapper surrounding the column of the smokable tobacco, the wrapper comprising cellulosic fibers and at least one filler, wherein the at least one filler comprises a calcium compound, wherein the median particle size of all calcium compounds is greater than 3.2 microns and less than 8 microns, and wherein the at least one filler is present in the wrapper in an amount from about 10% to about 16% by weight;wherein the wrapper has a basis weight of less than 23 gsm; andwherein the smoking article has an ASTM Test No. E2187-04 pass rating of at least about 75%. 2. A smoking article as defined in claim 1, wherein the wrapper has a BMI of less than about 5 cm−1. 3. A smoking article as defined in claim 1, wherein the median particle size of all calcium compounds is from about 3.5 microns to about 8 microns. 4. A smoking article as defined in claim 1, wherein the wrapper has a basis weight of from about 18 gsm to about 21 gsm. 5. A smoking article as defined in claim 1, wherein the wrapper has a permeability of from about 30 Coresta to about 80 Coresta. 6. A smoking article as defined in claim 1, wherein the wrapper has a permeability of from about 35 Coresta to about 75 Coresta. 7. A smoking article as defined in claim 1, wherein the smoking article has a FASE rating of less than about 50%. 8. A smoking article as defined in claim 1, wherein the wrapper further comprises discrete areas treated with a film-forming composition, the treated areas being separated by untreated areas. 9. A smoking article as defined in claim 8, wherein the film-forming composition comprises an alginate, guar gum, pectin, polyvinyl alcohol, polyvinyl acetate, a cellulose derivative, starch, a starch derivative, and mixtures thereof. 10. A smoking article as defined in claim 8, wherein the treated areas are in the shape of circumferential bands disposed longitudinally along the smoking article. 11. A smoking article as defined in claim 1, wherein the at least one filler comprises calcium carbonate. 12. A smoking article as defined in claim 1, wherein a surface of the wrapper does not include areas treated with a reduced ignition composition. 13. A smoking article as defined in claim 1, wherein the smoking article has a FASE rating of less than about 25%. 14. A smoking article as defined in claim 1, wherein the smoking article has a FASE rating of less than about 10%. 15. A smoking article as defined in claim 1, wherein the wrapper contains a second filler, the wrapper having a total filler loading of from about 20% to about 30% by weight. 16. A smoking article having reduced ignition proclivity characteristics comprising: a column comprising a smokable tobacco;a wrapper surrounding the column of the smokable tobacco, the wrapper comprising cellulosic fibers and at least one filler, wherein the at least one filler comprises a calcium compound, wherein the median particle size of all calcium compounds is greater than 3.2 microns and less than 8 microns;wherein the wrapper has a basis weight of less than 23 gsm; andat least one discrete area treated with a reduced ignition composition located on the wrapper, the treated discrete area being separated by untreated areas, the discrete area containing sufficient amounts of the reduced ignition composition to reduce ignition proclivity of the smoking article; and wherein the at least one filler is present in the wrapper in an amount from about 10% to about 16% by weight. 17. A smoking article as defined in claim 16, wherein the wrapper includes a plurality of discrete areas treated with the reduced ignition composition separated by untreated areas. 18. A smoking article as defined in claim 16, wherein the wrapper has a BMI of less than about 5 cm−1 within the at least one discrete area. 19. A smoking article as defined in claim 16, wherein the median particle size of all calcium compounds is from about 4 microns to about 8 microns. 20. A smoking article as defined in claim 16, wherein the wrapper has a permeability of from about 15 Coresta to about 80 Coresta. 21. A smoking article as defined in claim 16, wherein the reduced ignition composition comprises an alginate, guar gum, pectin, polyvinyl alcohol, polyvinyl acetate, a cellulose derivative, starch, a starch derivative, and mixtures thereof. 22. A smoking article as defined in claim 16, wherein the treated areas are in the shape of circumferential bands disposed longitudinally along the smoking article. 23. A smoking article as defined in claim 1, wherein the at least one filler comprises calcium carbonate. 24. A smoking article as defined in claim 16, wherein the smoking article has an ASTM Test No. E2187-04 pass rating of at least about 75% and has a FASE rating of less than about 50%. 25. A wrapper for a smoking article comprising: a paper web comprising cellulosic fibers and at least one filler, wherein the at least one filler comprises a calcium compound, wherein the median particle size of all calcium compounds is greater than 3.2 microns and less than 8 microns, and wherein the at least one filler is present in the wrapper in an amount from about 10% to about 16% by weight, the wrapper having a basis weight of less than 23 gsm and a permeability of from about 15 Coresta to about 80 Coresta. 26. A wrapper as defined in claim 25, wherein the mean particle size of all calcium compounds is from about 3.5 microns to about 8 microns, the wrapper having a basis weight of from about 18 gsm to about 21 gsm and a permeability of from about 35 Coresta to about 75 Coresta. 27. A smoking article as defined in claim 1, wherein the at least one filler comprises calcium carbonate.
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이 특허에 인용된 특허 (70)
Passaretti June D. (Liberty Corner NJ), Acid-stabilized calcium carbonate, process for its production and method for its use in the manufacture of acidic paper.
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