Classifications

• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
  • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
  • A24D3/06—Use of materials for tobacco smoke filters
  • A24D3/067—Use of materials for tobacco smoke filters characterised by functional properties
  • A24D3/068—Biodegradable or disintegrable
• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
  • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
  • A24D3/04—Tobacco smoke filters characterised by their shape or structure
• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
  • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
  • A24D3/06—Use of materials for tobacco smoke filters
  • A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
  • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
  • A24D3/06—Use of materials for tobacco smoke filters
  • A24D3/14—Use of materials for tobacco smoke filters of organic materials as additive

Definitions

• This invention relates to a cigarette filter made with biological material.
• the filters known on the market are highly polluting both in the production phase and after use, especially when they are thrown on the ground. In fact, they contain a very polluting substance, cellulose acetate, a synthetic chemical material that requires 5 to 12 years for decomposition. It is therefore easy to understand how harmful cigarettes are not only for health, but also for the environment.
• a cigarette butt consists mainly of the filter.
• the filter if abandoned in the sea, breaks up into microplastics that become part of the marine food chains.
• a study by the Federico II University of Naples is examining the degradation time of butts and the results of the first two years of research are not at all comforting: the degradation of cigarette butts is, in fact, rapid in the first months, when they degrade the external component, paper. Later, however, it almost stops completely, because the microorganisms responsible for the decomposition are unable to attack the substances that make up the butt. Therefore, it remains in the environment, giving rise to plastic fragments and toxic substances.
• a study by San Diego State University has shown, through laboratory experiments, that a single cigarette butt in a liter of water is enough to kill much of the marine and freshwater fauna.
• biodegradable filters made, for example, of natural materials such as cotton, hemp and linen.
• biodegradable filters made of cellulose on the market but this entails, however, damage to the environment as the filters thus made determine the felling of trees in addition to the damage that occurs in their production.
• the purpose of this invention is to create a filter for cigarettes made of biological material.
• the present invention relates to a filter for cigarettes having the characteristics of the attached claim 1.
• Figures la, lb, lc and Id illustrate the preparation steps of a first embodiment of the filter according to the present invention
• Figure 2 illustrates an axonometric view of the closed filter made according to the steps shown in Figures la- Id;
• Figure 3 illustrates a front view of the filter according to a second embodiment of the present invention
• Figure 4 illustrates a longitudinal section of the filter according to a third embodiment of the present invention
• Figure 5 illustrates a longitudinal section of the filter according to a fourth embodiment of the present invention.
• the filter comprises a through separation structure 2 which determines the formation of compartments 3 suitable for the passage and filtration of smoke.
• this structure 2 there may also be a tubular element 4 that surrounds it.
• the structure 2 and the tubular element 4 are of adequate dimensions to be coupled with a common paper for making cigarettes.
• the separation structure 2 is wrapped directly by the paper that is rolled up on it.
• Both the tubular element 4 and the separation structure 2 are made by means of vegetable flour paste (for example, wheat flour, hemp flour, rice flour, Khorasan wheat flour or other suitable flour) which are able to retain harmful substances.
• vegetable flour paste for example, wheat flour, hemp flour, rice flour, Khorasan wheat flour or other suitable flour
• cotton, hemp or linen can be inserted in the compartments 3 to retain more harmful substances.
• the filter is made starting from a single sheet of paste 1 by rolling it on itself, as illustrated in Figures la- Id. In particular, it is sufficient to make a three-quarter fold of the sheet 1 and then roll the strip to form a tubular element.
• a separation structure 2 is formed, substantially S-shaped and arranged in a central position with respect to the circumference of said sheet 1. This S shape preferably extends along the entire length of the filter.
• the same shape can, however, be made by means of a mold.
• the separation structure 2 seen in cross section, is substantially M-shaped and is inserted inside the tubular element 4. This M shape extends preferably along the entire length of the filter.
• the separation structure 2 seen in longitudinal section, has a wavy conformation preferably for the entire length of the filter and is suitably provided with holes capable of allowing the passage of smoke.
• Said structure 2 with corrugated conformation is inserted inside the tubular element 4.
• the separation structure 2 is spiral-shaped without an external tubular element whereby the smoke passes through said spiral.

Landscapes

• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Life Sciences & Earth Sciences (AREA)
• Biodiversity & Conservation Biology (AREA)
• Filtering Materials (AREA)
• Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=69743841

Family Applications (1)

Country Status (5)

Families Citing this family (1)

Family Cites Families (13)

• 2019
  • 2019-10-30 IT IT102019000020096A patent/IT201900020096A1/it unknown
• 2020
  • 2020-10-17 CA CA3159056A patent/CA3159056A1/en active Pending
  • 2020-10-17 WO PCT/EP2020/025462 patent/WO2021083543A1/en not_active Ceased
  • 2020-10-17 EP EP20792291.5A patent/EP4051024A1/de not_active Withdrawn
  • 2020-10-17 US US17/766,605 patent/US20240099363A1/en not_active Abandoned

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