Classifications

• • 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
  • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for 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
• • 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
  • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
  • A24D3/02—Manufacture of tobacco smoke filters
  • A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
  • A24D3/0212—Applying additives to filter materials
  • A24D3/022—Applying additives to filter materials with liquid additives, e.g. application of plasticisers

Definitions

• the present invention relates to a method for producing an acid provided filters for tobacco products by impregnating a fibrous or flat Filter material according to the preamble main claim and also the use of such Filters for cigarette tubes, cigarettes, cigars or cigarillos and for Smoking Devices.
• esters of organic edible acids such as citric acid, tartaric acid, succinic acid, malic acid and sugar acid used, which dissolved in glycerol triacetate finely distributed on the fibers of the filter material can be.
• the disadvantage of this method is that the esters of the particular Polycarboxylic acids have only a very weak retention compared to basic smoke ingredients have, since the reactive acid groups are esterified in this case and therefore no longer for the selective retention of basic smoke components be available.
• the acid anhydrides are the corresponding di- or polycarboxylic acids in the carboxylic acid esters used as filter hardeners dissolved and hydrolyzed after spraying on the filter fibers.
• this method is the very complex and therefore expensive production of the Acid anhydrides and secondly the instability of the dissolved anhydrides, which already by traces of water in the solvent used or by air humidity to be hydrolyzed to the corresponding acids and as acids from the solvent crystallize.
• the di- or polycarboxylic acids are very in the form fine particles either according to EP 09 13 100 A2 directly via a metering device applied to the strand of filter material during filter production or this very According to DE 39 04 239 C1, fine particles are in an organic, liquid medium suspended and the suspension obtained applied to the filter material.
• the production of the small particles by micronization is extremely expensive; on the other hand, either additional metering devices are required the filter manufacturing machine or the suspensions used show instability, whereby the fine particles settle on the floor over time.
• the invention has for its object a method for producing an acid proposed filters for tobacco products, in which the environmental and Processing temperatures of crystalline edible acids or their acidic ones Salts together with an organic solvent used as a filter hardener as a carboxylic acid ester hardener can be solved so that the result is clear Solution can be applied to the filter material in the usual way.
• esters are used, as in DE 39 04 239 C1 are described, in particular glycerol triacetate (triacetin) polyethylene glycol acetates or -propionate and especially triethylene glycol diacetate (TEGDA) are.
• triacetin triacetin
• TAGDA triethylene glycol diacetate
• the solution is preferably made from edible acids or from their acid salts, the Carboxylic ester hardener component and the alcoholic solubilizer for one Filter material used, which consists of fibers or nonwovens made of cellulose acetate, cellulose, There is polyethylene or polypropylene.
• Maleic acid, succinic acid, glutaric acid, tartaric acid are preferred as edible acids.
• Further edible acids that can be used according to the invention are from the Group of hydroxy acids also glycolic acid, lactic acid, sugar acids. 3-hydroxymandelic acid, salicylic acid, 2-hydroxycinnamic acid (coumarin) and ascorbic acid, or from the group of the dicarboxylic acids also oxalic acid, malonic acid, adipic acid, Pimelic acid, suberic acid and phthalic acid and from the group of monocarboxylic acids nor cinnamic acid, phenylacetic acid and benzoic acid.
• solubilizers have a good one Solubility for the polycarboxylic acids or for their salts.
• Particularly preferred is ethanol, because it is particularly well suited as a solubilizer and already small amounts are sufficient to e.g. in glycerol triacetate (triacetin) to solve and ultimately because ethanol is also otherwise common in the tobacco industry Is solvent.
• glycerol triacetate triacetin
• solubility for cellulose acetate fibers i.e. the corresponding cellulose acetate filters harden faster.
• the procedure is preferably such that based on the total solution, the proportion of edible acids or acid salts in a concentration of 1 to 20 wt.% and the alcoholic solubilizers in an amount of 0.1 to 10 and in particular from 4 to 8% by weight. Furthermore, it is useful if you have the concentration of the edible acids or that of the acidic salts the same in the solution of the carboxylic ester hardener component and the alcoholic Solution broker sets such that when the solution is applied, this related on the fiber weight, 0.1 to 5% by weight and in particular 0.5 to 2% by weight.
• the acidified filters or the acidified filter material obtained according to the invention can be used as a filter plug or as part of the same for a cigarette paper tube but also in stick form as a filter for smoking devices such as pipes or cigarette holders be used.
• the use of the invention is particularly advantageous presented filter material as a filter plug or as part of the same for a cigarette, cigar or a cigarillo, the proportion of the pleasure acids or that of the acid salts in the filter material 0.1 to 10 mg per cigarette or cigarillo is.
• a filter rod in the dimensions of 126 mm in length, corresponding to 6 times the length of a filter, and used with a diameter of 7.83 mm.
• This acetate filter corresponded a specification of 2.5y / 35,000 HK and had a draw resistance of 405 mm WS.
• the acetate weight was set at 638 mg, which means that it had to 3.19 mg malic acid are sprayed on or 0.53 mg / cigarette.
• triacetin was used as 5.6 kg of malic acid and. were in an approx.
• the amount sprayed onto the filter was specified with 60.2 mg solution / filter rod. Alcohol was not taken into account because it occurred during or immediately after Manufacturing evaporates. The physical parameters such as tensile resistance and hardness were not affected by malic acid.
• the acetate weight was in this case 531 mg, i.e. 13.275 mg malic acid or 3.3 mg malic acid / cigarette were sprayed on. 45 mg triacetin per filter rod was used as hardener component.
• the plasticizer-malic acid solution was as in Example 1 but with amounts of 29.5 kg of malic acid and 100 kg of triacetin are produced. The one added after about 15 minutes The amount of ethanol in this case was 8 kg, and the mixture became better and faster solution heated to 35 ° C. The finished solution was stable. The applied The amount here was 58.3 mg solution / filter rod.

Landscapes

• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Cigarettes, Filters, And Manufacturing Of Filters (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

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Family Applications (1)

Country Status (10)

Families Citing this family (3)

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• 2000
  • 2000-01-08 DE DE10000519A patent/DE10000519C5/de not_active Expired - Fee Related
• 2001
  • 2001-01-05 PL PL01356296A patent/PL356296A1/xx unknown
  • 2001-01-05 RU RU2002121165/12A patent/RU2002121165A/ru not_active Application Discontinuation
  • 2001-01-05 HU HU0204227A patent/HUP0204227A3/hu unknown
  • 2001-01-05 DE DE50100217T patent/DE50100217D1/de not_active Expired - Lifetime
  • 2001-01-05 AT AT01903622T patent/ATE238704T1/de not_active IP Right Cessation
  • 2001-01-05 CZ CZ20022388A patent/CZ20022388A3/cs unknown
  • 2001-01-05 EP EP01903622A patent/EP1244365B1/de not_active Expired - Lifetime
  • 2001-01-05 AU AU31662/01A patent/AU3166201A/en not_active Abandoned
  • 2001-01-05 SK SK986-2002A patent/SK9862002A3/sk unknown
  • 2001-01-05 WO PCT/EP2001/000072 patent/WO2001050892A1/de not_active Application Discontinuation

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