Filtering element in shape of cornet made of filter paper

FIELD: technological processes.

SUBSTANCE: cornet-shaped filtering element (1) made of filter paper and intended for production of aromatic extracts, for example - from coffee; the element has a bottom (2) wherefrom two side walls, positioned opposite each other (3), stretch to the upper charging hole (4). At the edges the side walls (3) are connected to each other, the side walls (3) penetrability in the lower part being greater than in the upper part. On the whole, the side walls (3) have three sections (7, 8, 9) with varied penetrability, such sections (7, 8, 9) preferably forming strips passing parallel to the bottom (2). The varied penetrability strip-shaped sections (7, 8, 9) are formed due to varied diameter perforation holes and/or due to varied number of perforation holes per area unit.

EFFECT: ensuring better quality and taste of brewed coffee.

7 cl, 1 dwg

 

This invention relates to a filter element in the form of a bag made of filter paper to obtain aromatic extracts, in particular of coffee, with the bottom away from the top of the boot holes extend two are located against each other, side walls, and side walls along the edges connected to each other, and the permeability of the side walls in the lower part is smaller than in the upper part. Themselves replaceable filter elements of this type are known.

In the known filter elements of this type the upper part is provided with a perforated area, made by perforation or extrusion, while the lower part of the element is not processed. This perforated area can be arranged so that the permeability to the top edge of the filter element increases. Because of this generally is achieved that when using a pre-defined amount of aromatic substances and a predetermined amount of water for brewing is obtained brewed drink relatively high drinking fortress, and simultaneously excluded pouring the water through the top edge of the filter element.

At the heart of this invention lies task, to improve the filter element of the type in question so that when on the measures such element has become possible to improve the quality and taste of brewed beverage, in particular coffee.

In accordance with the invention this problem is solved due to the fact that the side walls generally have three sections with different permeability, and these sections preferably form a strip, which is parallel to bottom.

With such a design of the filter element are in General created three zones of varying permeability. This area, located in the base area, the least permeable, the average area in comparison with it has greater permeability and area, passing near the upper edge, in General, equipped with the highest permeability, and therefore the contact time of the water for brewing loaded in the filter element aromatic substance has a different duration, which positively affects the quality and taste of the resulting drink. In this case, as in the known filter elements, water pouring out over the edge of the element is reliably prevented.

This stripe-shaped areas of different permeability are formed through the perforated holes of different diameter and/or number of punched holes per unit area.

In this regard, the term "perforation" should be understood such openings that can be created through the perforations and through the extrusion.

Other characteristics of the image which plants are the subject of dependent claims.

An example implementation of the invention represented in the accompanying drawing, it is described below in more detail. The sole figure there is shown a filter element.

In this drawing position 1 indicated the proposed filter element; this element method, which is in itself known, made of filter paper and is designed to produce aromatic extracts, in particular of coffee.

The filter element 1 has a bottom 2, where the upper loading opening 4 extends two are located against each other, the side walls 3.

The side walls 3 at the edges are connected to each other, namely, first, by means of a fold 5, and secondly, through the double seam 6, obtained by the process of extrusion. Alternatively, you can also provide a single seam 6.

The side walls 3 is equipped with three plots 7, 8, 9 of different permeability. From a geometrical point of view, sections 7-9 are strip approximately parallel to the bottom 2.

These bands may have the same width, but they can be different widths, and in the example shown the implementation of the lower strip 7 and the upper strip 9 are wider than the average band 8.

Different permeability lanes 7-9 reach preferably by perforation.

This perforation can be done is as perforation, and squeezing.

To provide a different permeability, separate holes perforated zones 7-9 may have different diameters. The diameter of the holes of the lower zone 7 may be smaller than the diameter of the holes in the above zone 8, in this case, the perforated holes of the upper zone 9 in General have a larger diameter. However, it is entirely valid to apply the same hole diameters and different permeability to ensure, through different number of punched holes per square centimeter.

This is done in the example implementation. Here you can see that the bottom area 7 has relatively little holes per square centimeter, for example, only four to eight holes per square centimeter, and the number of holes per square centimeter in the middle and upper zone 8 and, respectively, 9 significantly increased. The average area 8, in particular, may have from ten to fourteen holes per square centimeter, and the upper zone 9, for example, from 16 to 26 holes per square centimeter.

Of course, the desired result may also produce a combination of different hole diameters and different numbers of holes per square centimeter.

Due to the different permeability within individual bands 7, 8, 9 is different duration of time of contact of water use is loaded in the filter element 1 of the aromatic substance. The time of contact, when viewed from the bottom to the feed opening 4, is reduced. This is because the permeability of the filter element to the feed opening 4 is increased. It also can achieve the prevention of transfusion of water out through the upper edge area of the filter element.

The proposed filter element 1 can be used in an optimal way, if the draining of hot water for brewing appropriately managed in the sense that, for example, during the first cycle the water fills only the bottom area 7, and during the following cycles, gradually filling up the upper zone 9. Thanks for filling paper filter element with a small amount of finely ground coffee, for example, two cups, brewing process with the same amount of hot water longer. On the contrary, if you want to brew a great Cup of coffee, running off at the greater loading with a large number of finely ground coffee is facilitated, if the liquid reaches upstream of the bands, thanks also prevented the transfusion.

1. The filter element (1) in the form of a bag made of filter paper to obtain aromatic extracts, in particular coffee, with a bottom (2), kotorogo upper loading opening (4) extending two are located against each other, side walls (3), moreover, the side walls (3) the edges are connected to each other, and the permeability of the side walls (3) in the lower part is smaller than in the upper part, characterized in that the side walls (3) generally have three sections (7, 8, 9) with different permeability, and these sites (7, 8, 9) preferably form a strip parallel to the bottom (2), and stripe-shaped areas (7, 8, 9) of different permeability are formed through the perforated holes of different diameter and/or due to different number perforated holes per unit area.

2. The filter element according to claim 1, characterized in that the individual strips (7, 8, 9) have approximately the same width.

3. The filter element according to claim 1, characterized in that the individual strips (7, 8, 9) have different widths.

4. The filter element according to claim 1, characterized in that the width of the middle band (8) is less than the width of the lower and upper band (7, 9).

5. The filter element according to claim 1, characterized in that in the bottom line (7) is provided approximately six perforations per square centimeter.

6. The filter element according to claim 1, characterized in that in the middle zone (8) is provided approximately 12 perforations per square centimeter.

7. The filter element according to claim 1, characterized in that the upper bound (9) is provided approximately 21 sprocket hole per square centimeter.



 

Same patents:

FIELD: technological processes.

SUBSTANCE: cornet-shaped filtering element (1) made of filter paper and intended for production of aromatic extracts, for example - from coffee; the element has a bottom (2) wherefrom two side walls, positioned opposite each other (3), stretch to the upper charging hole (4). At the edges the side walls (3) are connected to each other, the side walls (3) penetrability in the lower part being greater than in the upper part. On the whole, the side walls (3) have three sections (7, 8, 9) with varied penetrability, such sections (7, 8, 9) preferably forming strips passing parallel to the bottom (2). The varied penetrability strip-shaped sections (7, 8, 9) are formed due to varied diameter perforation holes and/or due to varied number of perforation holes per area unit.

EFFECT: ensuring better quality and taste of brewed coffee.

7 cl, 1 dwg

FIELD: food industry; production technology.

SUBSTANCE: invention relates to a beverage cartridge, intended for use in beverage preparation machine, comprising a filter element, which comprises a plurality of microholes, passing through it from first surface to second surface located opposite first surface. Filter element facilitates brewing due to high permeability for fluid medium from beverage brewed from particles, suitable for brewing, wherein said fluid medium contains a liquid and gas, and prevents accumulation of gas in device for brewing by removing gases released from medium of beverage contained in beverage cartridge, during brewing. Filter element can be used in rigid, semi-rigid or soft capsule inserted into machine for brewing beverages. In particular, present invention relates to brewing coffee and coffee products in a coffee brewing machine intended for receiving capsules containing coffee particles, through which water is passed for brewing coffee therefrom.

EFFECT: invention discloses a beverage cartridge and filter element.

35 cl, 5 dwg

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