NL8201585A - Cigar coated with aroma-contg. microcapsules - gives smoke less unpleasant to non smokers without affecting cigar flavour - Google Patents

Abstract

Cigar has a filling wrapped in a surrounding leaf and with a covering leaf wrapped round the surrounding leaf. The covering leaf carries on its outer surface an aroma material as internal phase in non-porous microcapsules adhered to the surface of the cover leaf. The external phase of the microcapsules is of an organic material which at ambient and elevated temps. does not itself evolve any specific aroma. The microcapsules pref. have a dia. of at most 0.3 mm and make up 0.05-12 %, esp. 0.1-4% of the wt. of the cigar. The aroma-contg. micro-capsules may make up part of the matting system applied to the cigar surface, and pref. have a particle size of not more than the max. particles size of the matting powder. The encapsulated aroma is released when the cigar is smoked and acts on the nasal membranes of non-smokers and non cigar smokers, to render the smell of the smoke less unpleasant, without affecting the taste of the cigar to the smoker.

Description

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Nw. 3264

Title: Cigar.

. The invention relates to a cigar, which is provided with means which change the smell of the cigar smoke when smoking the cigar, without appreciably influencing the taste for the smoker.

Non-smokers and also non-cigar smokers are sometimes hindered by cigar smoke, which they experience as atmospheric spoilage due to its heavy, pungent odor.

It is known to combat annoying odors in confined spaces by spreading a substance with a pleasant or fresh odor, which displaces the annoying odor in the odor absorption cells of the nasal mucous membrane, or at least drowns out its perception. For example, in a room in which cigars are or have been smoked, the atmosphere can be changed by atomizing or volatilizing a fragrance. This method, sometimes used, has raised the question whether it is possible to remove the characteristic odor of cigar smoke directly at the source or at least to weaken it by providing the cigar itself with a fragrance.

A cigar is generally made up of so-called inner material, usually consisting of long and / or short pieces of tobacco leaf, which inner material is enclosed with a cover over which a cover sheet is placed and glued. The binder can consist of natural or reconstituted tobacco leaf or sometimes also of paper; the wrapper consists of natural or aeroconstituted tobacco leaf.

Tests were conducted in which different fragrances in different C 25 concentrations were added to the tobacco mass used as cigars. When smoking these cigars, it was found that the characteristic odor of the smoke was less perceptible as the cigar contained a greater amount of fragrance.

* It has been demonstrated that it is criminal to influence the odor of cigar smoke by causing the cigar to contain an odorant. A drawback, which came to light when smoking the test cigars, was, however, that the taste was already changed by a low odor content and was completely spoiled by larger odor levels. It was further found that the presence of fragrance between the cover and the cover sheet also readily affects the characteristic taste of the sicra and thus reduces the enjoyment of smoking.

Upon further investigation, it was found that the characteristic annoying characteristic smell of cigar smoke originates at least in large part from the smoke rising from the burning end of the cigar (the side-stream smoke), and at most to a lesser degree from the smoke, which is sucked in by mouth (the mainstream smoke) and then blown out again, while the taste of the cigar during smoking is determined solely by the composition of the mainstream smoke.

] _5 Based on the results of the study, further tests were carried out with cigars which had been fragranced on their surface. It has been found that, due to the presence of a small amount of fragrance on the outer surface of the wrapper of a sicra, the pleasure for the smoker does not change, but the odor of the cigar smoke, which is annoying for the non-smoker, is reduced and can even be eliminated entirely. be suppressed.

The invention relates to a cigar, constructed from inner material, a wrapper enclosing the inner material and a wrapper wrapped around the wrapper, which cigar is characterized by a fragrance applied on the outer surface of the wrapper, which is enclosed as an inner phase in the outer surface. non-porous micro-0 "" capsules, adhered to the wrapper, the outer phase of which consists of organic material, which itself does not give off a specific odor at 1 normal and elevated temperature.

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It has been found that the microcapsules at the area of the burning end of the cigar lose their structure under the influence of the prevailing high temperature, as a result of which the fragrance is released in vapor form at or near the place where the side-stream smoke arises, whereby an optimum effect is obtained. without affecting the taste of the cigar, and thereby the enjoyment of smoking.

Numerous fragrances are suitable for use with the cigar according to the invention. Obvious possibilities are floral and fruit scents and perfumes. It is to be expected that special fragrances will be developed for cigars. Many fragrances are commercially available in encapsulated form, usually in dimensions; between 0.01 and 0.5 mm. The micro-capsule technology is known, for example from the book by M.H. Gutcho, "Microcapsules and Microencapsulation! Techniques" (Noyes Data Corporation, Park Ridce, New Jersey, USA, 15 1976). ;

Suitable materials for the outer phase of the microcapsules are, for example, polysaccharides.

The amount of fragrance to be used for the cigar according to the invention depends on the desired effect. In the presence of microcapsules containing 20 gauric dust on the outer surface of the wrapper, a clearly noticeable reduction in the characteristic cigar smoke odor is already observed at an amount of 0.05%. With an increasing amount of microcapsules, this effect first changes into a pleasant, unidentifiable odor and then into the clearly recognizable • 75 odor of the fragrance used. Amounts greater than 12% on the wrapper generally provide creen benefits and can make the cigar surface feel rough. Very favorable results have been obtained with fragrance-containing microcapsules on the wrapper in amounts of 0.05-4%. The percentages mentioned are based on the weight of the cigar. 8 2 0 1 5 8 5 f -4-

The fragrance-containing microcapsules can be adhered to the outer surface of the wrapper with an adhesive.

Examples of suitable adhesives are the fixing liquids used for mattifying cigars. Such fixing fluids are commercially available and often consist of solutions of a carboxyalkyl cellulose in a volatile solvent, for example a low alcohol such as isopropanol. The microcapsules are suspended in the fixing liquid, after which the suspension is applied to the surface of the surface, for example by coating or spraying. Since the visibility of the microcapsules on the cigar surface increases as their diameter increases, microcapsules with a diameter of at most 0.3 mm are preferably used.

If it is desired to reduce the observability of the microcapsules to practically zero, it is preferred that the microcapsules be part of a matting applied to the cigar surface.

Cigars are often matted to mask small spots and flaws in the wrapper and to give the cigars a uniform appearance. For this purpose, the cigar surface is sprayed or coated with a matting liquid, consisting of a suspension of very fine tobacco powder (matting powder) in a fixing liquid.

If cigars are now matted with the aid of a mattifying liquid, in which the fragrance-containing microcapsules are also suspended, the microcapsules are embedded in the matting layer and thereby obscured. In this embodiment of the invention, the 2 F microcapsules are preferably no greater than the maximum size of the matting powder used.

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^ Commercially available fixing fluids generally contain 5-10 wt.% Adhesive in a volatile solvent. A conventional mattifying liquid is obtained by adding very finely ground tobacco powder and, if desired, a fire improver to the fixing liquid to a total solids content of 5-25% by weight. If microcapsules containing -5 fragrance are also suspended therein, additional solvent may be added if necessary to obtain a sprayable suspension.

Example I

1 volume part of a commercially available fixing liquid, according to analysis consisting of a solution of carboxyethyl cellulose in isopropanol with a solid content of 7.3% by weight, was diluted with 6 parts by volume of isopropanol.

An encapsulated perfume flavor (Flav-o-lok, no. 610123 H, Polak Frutal Works, Amersfoort) was suspended in the diluted fixing liquid.

The yellow microcapsules had sizes between 0.03 and 0.25 mm. Four suspensions were prepared by adding 1 part by weight of microcapsules to dilute fixative suspension, liquid, parts by weight.

1 A

2 B

4 C

8 D

Finished cigars were sprayed over their wrapper with these suspensions and then dried. The amount of microcapsules applied thereby to the cigars on the outer surface of the wrapper was determined by weighing the cigars before and after spraying and drying. The following values were found: sprayed with wt.% Microcapsules suspension _ OÖ A 10.2 rsa r ~> __ B 5.1 C 1.1

UI H

0.4 μl Although the microcapsules were visible on all cigars, the fide treated with suspensions C and D cigars had an acceptable appearance. However, the cigars sprayed with suspensions A and B. looked very unattractive. Therefore, a mattifying powder with a particle size between 0.001 and 0.25 mm was added to all suspensions in the following amounts: suspension of mattifying powder - parts A 0.125 B 0.250 C 0.500 10 D 1,000

The mattifying liquids thus prepared were sprayed over finished cigars. After drying, these cigars had the uniform appearance of conventionally matted cigars.

The cigars were lit and smoked in a confined space by and in the presence of fragrance experts and laymen.

Of all cigars, the taste for the smoker himself turned out to be completely equal to that of an untreated cigar of the same type. Furthermore, it was found that none of the cigars had the characteristic odor of cigar smoke. The odor experts were able to recognize the 20 hop aroma with all cigars. The laity spoke to the suspensions C and D.

treated cigars with a pleasant, non-specific odor, but clearly recognized the hop odor in the cigars treated with suspensions A ertB. Example II

In the manner described in Example I, tests were carried out with cassis flavor and cola flavor in encapsulated form. The results were identical to those of Example 1. The subjects had a slight preference for the hop-scented cigars.

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Claims (6)

Cigar, made up of inner material, a cover sheet enveloping the inner material and a cover sheet wrapped around the cover sheet, characterized by a fragrance applied to the outer surface of the cover sheet, which is enclosed as an inner phase in non-porous adhered to the outer surface of the cover sheet 5. microcapsules, the outer phase of which consists of organic material, which itself does not give off a specific odor at ordinary and elevated temperatures. Cigar according to claim 1, characterized in that the microcapsules have a diameter of at most 0.3 mm. Cigar according to claims 1-2, characterized in that the amount of odorant-containing microcapsules adhering to the outer surface of the wrapper is 0.05-12% by weight of the cigar. Cigar according to claim 3, characterized in that the amount is 0.1-4%. Cigar according to claims 1 to 4, characterized in that the fragrance containing microcapsules are part of a matting applied to the cigar surface. Cigar according to claim 5, characterized in that the microcapsules do not exceed the maximum particle size of the matting powder. 8201585