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GB1277449A - Treatment of fibrous material to increase its porosity - Google Patents

Treatment of fibrous material to increase its porosity

Info

Publication number
GB1277449A
GB1277449A GB41781/69A GB4178169A GB1277449A GB 1277449 A GB1277449 A GB 1277449A GB 41781/69 A GB41781/69 A GB 41781/69A GB 4178169 A GB4178169 A GB 4178169A GB 1277449 A GB1277449 A GB 1277449A
Authority
GB
United Kingdom
Prior art keywords
depressions
porosity
fibrous material
rod
resulting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB41781/69A
Other languages
English (en)
Inventor
Brian David Freeman
Ronald Rudland
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Tobacco Group Ltd
Original Assignee
Imperial Tobacco Group Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Imperial Tobacco Group Ltd filed Critical Imperial Tobacco Group Ltd
Priority to GB41781/69A priority Critical patent/GB1277449A/en
Priority to CH1216070A priority patent/CH511121A/de
Priority to NLAANVRAGE7012095,A priority patent/NL169675C/xx
Publication of GB1277449A publication Critical patent/GB1277449A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00—Preparing tobacco in the factory
    • A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/02—Cigars; Cigarettes with special covers
    • A24D1/027—Cigars; Cigarettes with special covers with ventilating means, e.g. perforations

Landscapes

  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
GB41781/69A 1969-08-21 1969-08-21 Treatment of fibrous material to increase its porosity Expired GB1277449A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB41781/69A GB1277449A (en) 1969-08-21 1969-08-21 Treatment of fibrous material to increase its porosity
CH1216070A CH511121A (de) 1969-08-21 1970-08-13 Verfahren zum Behandeln eines Fasermaterialblattes, Vorrichtung zur Durchführung des Verfahrens und gemäss dem Verfahren behandeltes Fasermaterialblatt
NLAANVRAGE7012095,A NL169675C (nl) 1969-08-21 1970-08-17 Inrichting voor het behandelen van een vel vezelmateriaal, alsmede een zodanig behandeld vezelmateriaal.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB41781/69A GB1277449A (en) 1969-08-21 1969-08-21 Treatment of fibrous material to increase its porosity

Publications (1)

Publication Number Publication Date
GB1277449A true GB1277449A (en) 1972-06-14

Family

ID=10421348

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41781/69A Expired GB1277449A (en) 1969-08-21 1969-08-21 Treatment of fibrous material to increase its porosity

Country Status (3)

Country Link
CH (1) CH511121A (de)
GB (1) GB1277449A (de)
NL (1) NL169675C (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4574821A (en) * 1984-03-22 1986-03-11 Philip Morris Incorporated Expanded wrapper and smoking articles including same
US4582507A (en) * 1984-05-23 1986-04-15 Philip Morris Incorporated Apparatus for manufacturing an expanded web of sheet material and a composite expanded web
US4585016A (en) * 1984-05-23 1986-04-29 Philip Morris Incorporated Expanded web of sheet material and method of making same
US9125436B2 (en) 2010-10-29 2015-09-08 British American Tobacco (Investments) Limited Ventilated smoking article
CN110381754A (zh) * 2017-04-28 2019-10-25 菲利普莫里斯生产公司 用于制造卷曲材料片材的方法和设备

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4574821A (en) * 1984-03-22 1986-03-11 Philip Morris Incorporated Expanded wrapper and smoking articles including same
US4582507A (en) * 1984-05-23 1986-04-15 Philip Morris Incorporated Apparatus for manufacturing an expanded web of sheet material and a composite expanded web
US4585016A (en) * 1984-05-23 1986-04-29 Philip Morris Incorporated Expanded web of sheet material and method of making same
US9125436B2 (en) 2010-10-29 2015-09-08 British American Tobacco (Investments) Limited Ventilated smoking article
CN110381754A (zh) * 2017-04-28 2019-10-25 菲利普莫里斯生产公司 用于制造卷曲材料片材的方法和设备
CN110381754B (zh) * 2017-04-28 2022-03-25 菲利普莫里斯生产公司 用于制造卷曲材料片材的方法和设备

Also Published As

Publication number Publication date
CH511121A (de) 1971-08-15
NL169675C (nl) 1982-08-16
NL7012095A (de) 1971-02-23

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee