Make the method for cigarette with filter tip
Technical field
The present invention relates to a kind of method of manufacturing cigarette with filter tip as claimed in claim 1 or 2.
Background technology
By DE 36 35 958 or US 4 807 647 known a kind of cigarettes with filter tip, wherein the filter tip of cigarette comprises two elements ventilative, that align in the vertical, has a public overcoat.First element will produce a big relatively pressure on vertically and falls filter-tip, yet at filter tip and in the radial direction, this filter tip is breathed freely on its entire cross section basically.Second element will produce less relatively pressure on vertically and falls filter-tip, and is also breathing freely in the radial direction.Above-mentioned two elements can closely combine or have betwixt an interval, wherein, there is the mode of certain intervals to guarantee filter-tip ventilation with first element that is connected with tobacco rods, preferably chamber by forming by the interval between filter element.In this zone, put outward and be perforated so that improve tobacco smoke by total cross section in the distribution of filter region, thus reduce condensate and nicotine content and to the negative influence of cigarette taste generation.The structure of known cigarette is such, and promptly filter element has the overcoat of himself, and public overcoat is used for the overcoat of second element simultaneously.This second element is the overcoat of tobacco rods simultaneously.The filter tip part realized with being connected by another overcoat of tobacco rods, this outer link and tobacco rods crossover on partial-length of being enclosed within.It is relatively more expensive to make this cigarette with filter tip.
Summary of the invention
The purpose of this invention is to provide a kind of method of making cigarette with filter tip, wherein said cigarette and known cigarette have components identical basically, and described method can be implemented and can also change filter-tip structure aspect different at each by this method in simple and efficient mode.
Feature by means of claim 1 and 2 achieves the above object.
In the method for the invention, make a continuous bar respectively by every kind of filter-tip material.Each filter-tip material can for example be cellulose acetate or carbon granule (Kohlegranulat).From described each continuous bar be syncopated as have a predetermined length have first section and second section of its overcoat.Two sections length for example preferably equates in other words.Form another continuous bar by described first and second sections, wherein each section alternately is cascaded mutually.Each section has predetermined interval mutually, and according to present embodiment, this is spaced apart 3 to 6 millimeters, and wherein series connection is carried out jacket by another overcoat continuously and realized.Produce each pair filter tip section by this another continuous bar.Each two filter tip section has three segmentations,, has first section of half length and have second section an of complete length in the centre at end regions that is, otherwise perhaps.
In two filter-tip structures, particularly include in the structure of charcoal particle at those, in end the filter tip section of for example being made up of the filter tip of cellulose acetate or papery is set usually by the oral cavity.This at first is owing to the reason on attractive in appearance.For this reason, the arrangement of each segmentation is such in two filter tip sections, that is, the end with half length is made up of the sort of filter-tip material that forms the oral cavity contact.Then, two filter tip sections are placed between two tobacco rods respectively and it are connected with described tobacco rods and described pair of filter tip section cut from the centre.Usually carry out on this corresponding drum that operates on the known cigarette manufacture machinery.
By means of method of the present invention, can between the filter tip part, form an interval in simple mode, so that form a ventilated cavity with Len req.
In the technical scheme according to claim 2, in the manufacture process of the 3rd continuous bar, each filter tip section is the interval not, but arranges one by one.But when being connected, form a corresponding chamber at interval by forming with tobacco rods.The overcoat that jacket the filter tip part can punch in any way.Need on geometry, not determine the arrangement of perforation.
Description of drawings
To be described an embodiment who implements the inventive method with reference to the accompanying drawings below.
Fig. 1 has shown the perspective view of the cigarette with filter tip that belongs to prior art.
Fig. 2 has shown the step according to the inventive method.
Fig. 3 has shown a section of cigarette with filter tip made according to the method for the present invention.
The specific embodiment
Cigarette with filter tip 10 shown in Figure 1 comprises a tobacco rods 12 and a filter tip part 18.Described tobacco rods is made up of tobacco section 14, and this tobacco section 14 is surrounded by a paper sleeve 16.Filter tip part 18 is made up of one first filter tip section 20 and one second filter tip section 22, and these two filter tip sections are made up of different materials and are arranged to certain interval, forms an interval by dotted line 24 expressions thus.Two filter tip sections 20 are connected with tobacco rods 12 by a public overcoat with label symbol 26 expressions with 22.
In the method that is used for producing cigarette with filter tip of the present invention, by being used for first filter tip and the continuous bar of second as described in Figure 1 each of filter-tip filter-tip material production (figure does not show).Filter-tip material for example is made up of cellulose acetate or papery filter tip on the one hand, and is made up of carbon granule (Kohlegranulat) on the other hand.Described two kinds of filter-tip materials itself all are known.Each continuous bar is furnished with suitable overcoat, for example a paper sleeve respectively.
By described continuous bar make that some are predetermined, preferably isometric first section and second section.This can be carried out by the substep operation, promptly for example at first produce length and be 132 millimeters section, these sections are cut into 44 millimeters length then, and then to be cut into length be 22 millimeters section, and these sections are connected into another continuous bar mutually in the mode that replaces subsequently, as shown in Figure 2.These sections are represented with 30 and 32 in Fig. 2.As shown in Figure 2, each section 30,32 is one another in series respectively in couples, wherein, leaves for example 3 to 6 mm clearance between each section.This gap is represented with 34.Described continuous bar is provided with an overcoat (not showing) in its manufacture process.The continuous bar that shows in Fig. 2 is cut into two filter tip sections 36.Each two filter tip section comprises an interlude 32 and each section 30 end section that constituted by half length.Two filter tip sections 36 of being lived by jacket are placed between two tobacco rods then, particularly carry out above-mentioned placement on the cigarette manufacture machinery known drum of (not showing).With after tobacco rods is connected, the described pair of filter tip section 36 is by incision in the middle of shown in the chain-dotted line 38 of Fig. 2.By such operation, having obtained respectively is the filter tip section 40,42 (as described in known, the length of section 30,32 is 22 millimeters) of 11 millimeters long.34 remain unchanged at interval.The structure that will have the filter tip section 40,42 of public overcoat 44 then is connected with a tobacco rods 46 by another overcoat 48, and just as known per se, described another overcoat 48 covers the part of tobacco rods in the end.
Shown another interval 50 among Fig. 3, this is set between filter tip section 42 and the tobacco rods 46 at interval.Described interval or with at interval 34 both select one, perhaps with 34 coexistences at interval.Two intervals 34,50 all are that the smog from tobacco rods 46 has formed ventilated cavity, thereby have reduced the content of condensate or nicotine.Can punch to overcoat 48 or overcoat 44 arbitrarily in known manner.Punching need not carried out in certain location.The overcoat punching also is known.
Described method can be implemented with known device or the machinery of making cigarette with filter tip.Doing does not like this need special expense.