PL246225B1 - Kindling and method of its production - Google Patents

Abstract

The invention relates to a kindling (1) in the form of a shaped piece of flammable material, provided with a central, vertical passage opening (2). The kindling consists of an upper part (3) in the form of a truncated cone integrated with a lower part (4) in the form of a cylindrical body, which has at least three cut-outs (5) arranged symmetrically on its circumference, shaped so that the fragments of the cylindrical body constituting the lower part (4) of the kindling (1) located between the cut-outs (5) form legs (6) of the kindling (1). The invention also relates to a method of producing the kindling. The kindling is intended for quick and easy lighting of other flammable materials, and in particular for use in lighting grill fuels using kindlings.

Description

Description of the invention

Field of invention

The subject of the invention is a kindling designed for quick and easy lighting of other flammable materials. Furthermore, the invention relates to a method of producing kindling that does not generate waste. The kindling is used to light grill fuels, in particular using kindlings. The kindling can also be used in traditional methods of lighting grill fuels, as well as fuels in stoves and fireplaces.

Discussion of the state of the art

Many different types of kindling are known in the prior art. For example, EP 1930398 A1 describes a kindling consisting of a combustible carrier material and associated fuel, characterized in that the combustible carrier material is wood chips that are partially coated or impregnated with paraffin or an oil-like substance as fuel, in such a way that the depth of penetration of the fuel into the surface of the fibrous carrier material is at least about half a millimeter. The kindling according to this publication is produced by crushing wood chips, preferably from coniferous wood, with the dimensions: length from 2 cm to 10 cm, width from 2 cm to 6 cm and thickness from 5 mm to 4 cm, the specific dimensions representing a statistical average value.

In turn, RU 2061737 C1 discloses a fuel briquette containing: 30-40% by mass of cellulose nitrate or waste pyroxylin in powder form, 5-10% by mass of paraffin or stearin and wood waste. The fuel briquette is prepared by mixing ground wood waste with a 20-30% solution of cellulose nitrate or waste powder pyroxylin in an organic solvent and adding ground paraffin to the mixture thus prepared. Then mixing is carried out at 14-20°C, and then its briquetting and drying.

The kindling described in US 20130247455 A1 is a product made from a composition containing: a) so-called pine straw, i.e. a mixture containing pine needles, wood chips, wood shavings and sawdust, b) vegetable oil such as: palm oil, corn oil, olive oil, soybean oil, coconut oil, peanut oil or sesame oil, c) natural resin - beeswax, d) herbal ingredient - cinnamon or camphor. The kindling is hollow and has at least one vertical channel and at least one horizontal channel drilled from the outer wall to the inner vertical channel. The kindling is ignited from the top and burns, producing a high, intense flame that ignites other flammable materials with a much higher ignition temperature. The flame height and burning time are controlled by the overall size of the kindling and the dimensions of the channels. The publication also describes a method of making a kindling comprising: a) drying pine straw; b) pulverizing the pine straw; c) preparing a liquid mixture or emulsion of a vegetable oil, at least one natural resin, and an herbal ingredient; d) mixing the liquid mixture or emulsion with the pulverized pine straw until a homogeneous mixture is obtained; e) weighing the mixture; f) transferring the mixture to a die; and i) compressing the mixture in a die to compress the suspension and form it into a desired shape.

US20160075961A1 describes a type of fireplace frame on which charcoal can be placed, wherein the frame itself can be made of a combustible material and is generally intended for single use. It may contain a non-toxic flame retardant or flame retardant substance that retards combustion of the frame at least during the initial heating phase. The flame retardant substance may be used both to coat the surface of the frame and to impregnate (soak) it. The fireplace frame may be provided with suitable ventilation holes that facilitate air flow around the charcoal and within the frame. The fireplace frame for charcoal comprises: a body with an internal cavity, wherein at least one surface of the frame body contains a combustible material; at least one opening in the fireplace body; and a non-toxic flame retardant substance bonded to at least one surface of the fireplace body containing combustible material, wherein the substance retards ignition of the fireplace frame upon application of heat during the first heating phase.

WO2020012402A1 discloses an element made of a combustible material for transmitting fire. The element is made of a combustible material suitable for transmitting fire to adjacent combustible materials, such as coke, wood, wood pellets, charcoal, coconut or other briquettes, made of a block-shaped combustible material having two levels, an upper and a lower one, the upper level having 3 to 7, preferably 5, upright holes, recesses or apertures, regularly spaced and mainly extending parallel to each other, and the lower level having 4 to 10, preferably about 6, lying holes, recesses or grooves, whereby continuous air channels are available at both levels.

In turn, DE3510429A1 discloses a kindling made of wood with a hole(s) and/or a cut(s). The kindling has the shape of a block, the lower surface of which has two or more cross-shaped cuts. Between these cuts, a plurality of protruding parts are formed, which are ignited. On the side surfaces of the block there are continuous cuts in a vertical direction. Their function (together with the holes located inside the block) is to improve the intensity of combustion and to distribute the mass of the block to ensure better combustion. The kindling block is intended for lighting fires, stoves and charcoal and enables the replacement of fossil fuels with wood.

Also known is a kindling described in US 2011/126452 A1 comprising a combustible cylindrical body formed of an organic material, including compressed wood. The body has an inner surface defining a cavity extending from an upper surface and a first blind hole extending radially from the cavity to the outer surface, the inner surface including a plurality of slots extending longitudinally therein.

The above publications describe fire starters containing various flammable materials and present methods of their production. Despite the multitude of materials used for lighting, especially solid grill fuels, it is desirable to develop a product that will burn efficiently and, above all, smokelessly. Another sought-after feature of new products is a long burning time and the generation of a high flame. In addition, in modern solutions, special attention is paid to the ecological method of producing the material. Solving these problems was the goal of this invention.

Invention Summary

During the research work, the Creators of the invention unexpectedly found that a properly designed shape of the kindling allows for the supply of an appropriate amount of air throughout the entire burning process and automatically directs and forces its movement under the influence of the heat released in the form of a narrow stream. Thanks to this, a flame is created with a height of over 30 cm, in which all volatile parts are completely burned. Additionally, the presence of a central hole changes the nature of the combustion process to less degressive, thanks to which the generated thermal power is high and stable for most of the burning time of the kindling.

In the first aspect, the subject of the invention is a kindling in the form of a shaped piece of flammable material consisting of a mixture of wood shavings and stearin, provided with a central, vertical through hole, characterized in that it consists of an upper part in the form of a truncated cone integrated with a lower part in the form of a cylindrical body. The radius of the lower base of the upper part of the kindling is smaller than the radius of the base of the lower part. The cylindrical body constituting the lower part of the kindling has at least three cut-outs arranged symmetrically on its circumference. Each of these cut-outs:

- projected onto the lateral surface of the cylindrical body, it has the shape of a trapezoid;

- in a direction parallel to the lateral surface of the cylindrical body, it extends from the lower base of this body towards its upper base to a height of the cut-out that is less than the height of the cylindrical body;

- in a direction parallel to the base of the cylindrical body, it extends from the circumference of this body to the central, vertical through hole, forming a common channel with it.

The cylindrical body fragments between the cutouts, which constitute the lower part of the kindling, form the kindling legs. The stearin content in the combustible material is from 55 to 60% by weight.

Preferably, the kindling according to the invention has three cutouts.

Advantageously, in the kindling according to the invention, the central vertical passage opening is circular in cross-section.

In a preferred embodiment, the kindling according to the invention contains lime wood chips as wood chips. In another preferred embodiment, the stearin is a mixture of fatty acids having a content of stearic acid from 60 to 70% by weight, palmitic acid from 30 to 40% by weight and other fatty acids having a content of 0-10% by weight.

The shape of the kindling, the ventilation system creating a chimney drawing air through the cutouts between the legs and directing it upwards through the central, vertical passageway and the flammable material from which it is made allow for a number of advantages compared to known kindlings available on the market. These advantages include a short ignition time, long burning time, high flame height and thermal power, no smoke during burning, a small amount of ash left after the kindling has completely burned. The results of comparative tests are given in the experimental part below. The shape and material of the kindling allow for the production of shapes with a small weight, around 14-16 grams, while maintaining all the above advantages.

In a second aspect, the subject of the invention is a method of producing kindling in the form of a shaped piece from a combustible material comprising a mixture of wood shavings and stearin, comprising in turn: (a) a step of preparing the raw material, (b) a step of forming the kindling, and (c) a step of seasoning the kindling, wherein in the step (a) of preparing the raw material, the wood shavings are soaked in molten stearin and cooled, and then crushed, wherein the content of stearin in the mixture of wood shavings and stearin is from 55 to 60% by weight, in the step (b) of forming the kindling, the crushed wood shavings soaked in stearin are hot pressed into the form of a shaped piece provided with a central, vertical through hole, wherein the shaped piece consists of an upper part in the form of a truncated cone integrated with a lower part in the form of a cylindrical body, wherein the radius of the lower base of the upper part of the kindling is smaller than the radius of the base of the lower part, and furthermore the body the cylindrical part of the kindling has at least three cut-outs arranged symmetrically around its circumference, each of these cut-outs:

- projected onto the lateral surface of the cylindrical body, it has the shape of a trapezoid;

- in a direction parallel to the lateral surface of the cylindrical body, it extends from the lower base of this body towards its upper base to a height (h) of the cut-out that is less than the height (H) of the cylindrical body;

- in a direction parallel to the base of the cylindrical body, it extends from the circumference of this body to the central, vertical passage opening, forming a common channel with it, while the fragments of the cylindrical body constituting the lower part of the kindling located between the cutouts form the kindling's legs, and in stage (c) of seasoning, the formed kindlings are cooled to a temperature of no more than 20°C.

Preferably, in step (a) of preparing the raw material, the stearin-impregnated wood chips are crushed by cutting into short lengths.

Preferably, in step (a) of preparing the raw material, first wood, preferably lime wood, is crushed to form wood wool, then the wood wool balls are disentangled into individual fibres, arranged in layers and wound into loose rolls, after which the rolls are immersed in a bath of melted stearin, and the stearin-soaked wood wool fibres are cooled and then subjected to crushing by cutting into short lengths. In a particularly preferred embodiment of the method according to the invention, in step (a), the wood wool fibres impregnated with stearin are cut into lengths no longer than 7 mm. In another preferred embodiment of the method according to the invention, in step (a) of preparing the raw material, before the process of cutting the wood wool fibres impregnated with stearin into short lengths, wood shavings in the form of wood shavings impregnated with stearin, which are waste from the production of kindling in the form of braided braids, are added as a supplement to the raw material.

In an alternative, advantageous variant of the implementation of the method according to the invention, in step (a) of preparing the raw material, wood chips in the form of wood shavings impregnated with stearin, constituting waste from the production of kindling in the form of braided braids, are used as the input material.

Preferably, in step (b) of forming the kindling, the crushed wood chips impregnated with stearin are first heated, preferably to a temperature of 45°C, then the mass is placed in the mould cavity, after which a preliminary pressure of 1.5 MPa is exerted on it by means of a punch for a time of 0.5 to 1 s, then the pressure is reduced for a time of 2 to 4 s, after which the full pressure of 2 MPa is exerted for a time of 0.5 to 2 s.

Preferably, in stage (c) of seasoning, the formed kindlings are stored at a temperature of no higher than 20°C for no less than 24 hours before packaging.

The advantages of the method according to the invention include the absence of waste, which in the case of the methods of the prior art had the form of, for example, cut-off ends of chips soaked in stearin or dust left from milling grooves in felt boards. Another advantage of the method according to the invention is the possibility of using as a raw material post-production waste from other methods of producing kindling, including in particular cut-off fragments of remnants of lime wood strips soaked in fatty acids constituting a residue from the production of kindling in the form of a braid.

Brief description of the drawing figures

The subject of the invention in embodiment examples is illustrated in the drawing, in which:

Fig. 1 shows the kindling according to the invention in a perspective view;

Figure 2 shows a cross-section of the upper punch for producing kindling according to the invention;

Figure 3a shows a perspective view of the lower punch for producing kindling according to the invention;

Fig. 3b is a top view of the lower punch of Fig. 3a;

Fig. 3c shows a cross-section of the lower punch according to the plane A-A marked in Fig. 3b;

Fig. 3d shows detail B of the lower punch from Fig. 3b;

Fig. 3e shows a cross-section of detail B according to the plane C-C marked in Fig. 3d.

Embodiments of the invention

The following examples are included solely for the purpose of illustrating the invention and explaining particular aspects thereof, and are not intended to limit it and should not be construed as encompassing the full scope of the invention, which is defined by the appended claims. In the following examples, unless otherwise indicated, standard materials and methods in the art were used or manufacturers' recommendations for specific reagents and methods were followed. A stearin with the trade name Palmera B1805 (manufacturer: KLK Oleo) containing 60-70 wt.% of stearic acid, 30-40 wt.% of palmitic acid and 0-10 wt.% of other fatty acids, an iodine value of 1-5 g(l2)/100 g, an acid value of 200-210 was used for the tests.

Example 1: Method of producing kindling:

The preparation of the raw material consists of impregnating lime wood shavings with stearin and crushing them. For this purpose, lime wood is processed using planers to form wood wool. The wood wool is laid out on feeding tables to the transmission ventilation system, where the wood wool balls are untangled into individual fibres. The lime wood fibres are arranged in layers and wound into loose rolls, which then pass through a stearin bath at a temperature of about 5°C above the melting point of the fuel, with the stearin content in the mixture of wood shavings and stearin ranging from 55 to 60% by weight. The impregnated wood wool is directed to a cooling tunnel, after which the wood wool is cut into short fibres. The cutting of the cooled stearin-impregnated wood wool is carried out using a hammer mill or other device that allows obtaining individual fibre lengths of less than 7 mm. The raw material thus prepared is then sent to the forming process.

Then the prepared raw material in the form of lime chips soaked in stearin, crushed to the appropriate length, is directed to the melting chamber, where the mass is heated to a temperature of about 45°C using electromagnetic waves or electric heaters. At this temperature, the stearin becomes partially plasticized, which allows for trouble-free merging of the kindling. The heated mass is poured into the forming nests with a diameter of 50 mm and a temperature of 20°C using a volumetric filling system, and before the matrix is filled in the mould nest, a lower punch with an appropriately profiled shape is placed in the mould nest. Fig. 3a shows a perspective view of the lower punch, Fig. 3b shows a top view of the lower punch, Fig. 3c shows a cross-section of the lower punch according to plane A-A marked in Fig. 3b, Fig. 3d shows detail B of the lower punch from Fig. 3b, and Fig. 3e shows a cross-section of detail B according to plane C-C marked in Fig. 3d. The amount of material poured to produce one kindling is 15 g. After filling the dies for a time from 0.5 to 1 s, an initial pressure of 1.5 MPa (75% of the maximum pressure) is exerted on the material using the upper punch (shown in the cross-section in Fig. 2), which is reduced for a time of approx. 3 s, and then the kindling is formed at full pressure of 2 MPa for approx. 1 s until a height of 23 mm is obtained. After this operation, the molds are demolded and then sent for seasoning.

Before being packaged in individual packages, the formed kindling is seasoned until it reaches a temperature of no more than 20°C for at least 24 hours.

Example 2: Method of producing kindling using post-industrial waste

The method is carried out in a similar manner to that described in Example 1, but during the preparation of the raw material, before the process of cutting the stearin-soaked wood wool fibres into short lengths, wood shavings in the form of stearin-soaked wood shavings, which are waste from the production of kindling in the form of braided braids, are added as a supplement to the raw material.

Example 3: Method of producing kindling from industrial waste

In this variant of the method according to the invention, wood shavings in the form of wood shavings soaked in stearin, which are waste from the production of kindling in the form of braided braids, are used as the only raw material for the production of kindling. This material is subjected to grinding in a hammer impact mill, the peripheral speed of which is 30 to 50 m/s, and the mill sieve has holes with a diameter of 6 to 8 mm. After grinding the components, the mass is fed to a chamber with a magnetron, where it is heated to a temperature of 45°C by means of electromagnetic waves and remains there until the stearin is completely dissolved. The heated mass is fed to the matrix in an amount of 14 to 16 grams per one matrix, the temperature of which is 16 to 20°C. The matrix used is the matrix described in Example 1.

The mass in the matrix is compressed by means of a punch exerting a pressure of 0.2 to 2.0 MPa for 2 to 6 seconds, during which time it cools down, allowing the components to permanently bond.

PL 246225 Β1

After pressing, the kindling is removed from the matrix and the matrix is cooled by an air stream to a temperature of 16 to 20°C.

After removing the kindling from the matrix, the kindlings are placed in stacks of 10 for seasoning.

Example 4: Kindling

The kindling obtained by the method of example 1 is shown in Fig. 1, where the kindling 1 in the form of a shaped piece of flammable material is provided with a central, vertical through hole 2, circular in cross-section. The kindling 1 consists of an upper part 3 in the form of a truncated cone integrated with a lower part 4 in the form of a cylindrical body. The radius of the lower base of the upper part 3 of the kindling 1 is smaller than the radius of the base of the lower part 4. The cylindrical body constituting the lower part 4 of the kindling 1 has three identical cut-outs 5 arranged symmetrically on its circumference. Each cut-out 5 projected onto the side surface of the cylindrical body has the shape of a trapezium. Moreover, each cut-out 5 in a direction parallel to the side surface of the cylindrical body extends from the lower base of this body towards its upper base to a height h of the cut-out 5 which is smaller than the height H of the cylindrical body, while in a direction parallel to the base of the cylindrical body it extends from the circumference of this body to the central, vertical through-hole 2, forming a common channel with it. The fragments of the cylindrical body constituting the lower part 4 of the kindling 1 located between the cut-outs 5 form the legs 6 of the kindling 1.

The upper part 3 of the kindling 1 has a lower base radius of 15 mm, an upper base radius of 8 mm and a height of 8 mm. The diameter of the central vertical through hole 2 is 12 mm. The lower part 4 of the kindling 1 has a base radius of 25 mm, a height H of 7 mm. The height h of the cutout 5 is 8 mm.

Example 5: Comparative tests of the properties of the inventive kindling and known kindlings

An experimental comparison was carried out of the properties of the inventive kindling obtained in accordance with Example 1 and the known kindlings available on the market, which are identified in Table 1 below.

Table 1: a list of known fire starters available on the market, whose properties were compared with the properties of the fire starters according to the invention

Fire starter name Manufacturer/brand Composition Shape/Dimension 12mm cube Fire&Flame, own brand GrilL-lmpex Fiberboard, fatty acids Cube 27x27x12 mm 24mm cube Weber brand, manufacturer Grilllmpex Fiberboard, fatty acids Cube 27x27x24 mm Tablet FLambit Darchem Fiberboard, natural wax A format with dice 18x30x12mm Plate Dancoal Dancoal Fiberboard, slack wax Form with cubes Wood wool Gl Fire&Flame, Grill-impex's own brand Lime wood, stearin Length 55mm 0I8- 22mm Wood wool Phoenix Phoenix Wood of various species of trees, wax Length 75 mm 0 12-17 mm

Ignition time: The kindling according to the invention is characterized by a short ignition time of less than 3 s. In the case of commercial kindling, the ignition time is from 1 to 5 s. Importantly, the maximum ignition time of the kindling according to the invention is 60 s, while in the case of commercial kindling, it was from 60 to 120 s.

Burning time: The burning time of the kindling, which is 7-8 minutes, is significantly longer compared to the burning time of well-known kindlings available on the market, which is typically 5 to 10 minutes.

Maximum flame height: In the case of the fire starter according to the invention, the average flame height is 35 cm, while for known fire starters available on the market, flame heights of only 15-30 cm can be achieved. The high flame height provided by the fire starter according to the invention is of great importance when lighting charcoal or briquettes made of it in grill fire starters. The high thermal power of the fire starter and the high flame allow for a significant reduction in the lighting time and a reduction in the intensity of smoke.

Smoke emission: The inventive kindling showed a complete lack of smoke during combustion (from the moment of ignition to complete combustion). When known kindlings were burned, black streaks of smoke were emitted (indicating incomplete combustion of the combustible material). After extinguishing, the inventive kindling does not smoke, while commercial kindlings continue to smoke for a period of 30 to 120 seconds.

Solid residue after combustion (ash): After combustion, the amount of ash is only less than 0.5% by weight of the original kindling mass. The amount of ash remaining after combustion of known kindlings available on the market is significantly higher, and typically exceeds 4% by weight of the original kindling mass. This feature also indicates the substantially complete combustion of the combustible material of the kindling according to the invention.

Ignition time: The ignition time of 2 kg briquettes in a Weber lighter in the case of the firelighter according to the invention is a maximum of 12 minutes, whereas in the case of known firelighters available on the market this time is 18-26 minutes.

Claims (13)

1. A kindling (1) in the form of a shaped piece made of a combustible material consisting of a mixture of wood shavings and stearin, provided with a central, vertical passage opening (2), characterized in that it consists of an upper part (3) in the form of a truncated cone integrated with a lower part (4) in the form of a cylindrical body, wherein the radius of the lower base of the upper part (3) of the kindling (1) is smaller than the radius of the base of the lower part (4), and furthermore the cylindrical body constituting the lower part (4) of the kindling (1) has at least three cut-outs (5) arranged symmetrically on its circumference, wherein each of these cut-outs (5): - projected onto the lateral surface of the cylindrical body, it has the shape of a trapezoid; - in a direction parallel to the lateral surface of the cylindrical body, it extends from the lower base of this body towards its upper base to a height (h) of the cut-out (5) that is less than the height (H) of the cylindrical body; - in a direction parallel to the base of the cylindrical body it extends from the circumference of this body to the central, vertical passage opening (2), forming a common channel with it, while the fragments of the cylindrical body located between the cutouts (5) constituting the lower part (4) of the kindling (1) form the legs (6) of the kindling (1), wherein the stearin content in the combustible material is from 55 to 60% by weight. 2. A kindling (1) according to claim 1, characterized in that it has three cut-outs (5). 3. A kindling (1) according to one of the claims 1-2, characterized in that the central, vertical passage opening (2) is circular in cross-section. 4. Kindling (1) according to one of claims 1 to 3, characterized in that it contains lime wood shavings as wood shavings. 5. A kindling (1) according to one of claims 1-4, characterized in that the stearin is a mixture of fatty acids with a content of stearic acid of 60 to 70% by weight, palmitic acid of 30 to 40% by weight and other fatty acids of 0-10% by weight. 6. A method of producing kindling in the form of a shaped piece made of a combustible material consisting of a mixture of wood shavings and stearin, comprising in turn: (a) a raw material preparation step, (b) a kindling forming step, and (c) a kindling seasoning step, characterized in that in the raw material preparation step (a), the wood shavings are soaked in melted stearin and cooled, and then crushed, wherein the stearin content in the mixture of wood shavings and stearin is from 55 to 60% by weight, in the kindling forming step (b), the crushed wood shavings soaked in stearin are hot pressed into the form of a shaped piece provided with a central, vertical through hole (2), wherein the shaped piece consists of an upper part (3) in the form of a truncated cone integrated with a lower part (4) in the form of a cylindrical body, wherein the radius of the lower base of the upper part (3) is the kindling (1) is smaller than the radius of the base of the lower part (4), and furthermore the cylindrical body constituting the lower part (4) of the kindling (1) has at least three cut-outs (5) arranged symmetrically on its circumference, each of these cut-outs (5): - projected onto the lateral surface of the cylindrical body, it has the shape of a trapezoid; - in a direction parallel to the lateral surface of the cylindrical body, it extends from the lower base of this body towards its upper base to a height (h) of the cut-out (5) that is less than the height (H) of the cylindrical body; - in a direction parallel to the base of the cylindrical body, it extends from the circumference of this body to the central, vertical passage opening (2), forming a common channel with it, while the fragments of the cylindrical body located between the cutouts (5) constituting the lower part (4) of the kindling (1) form the legs (6) of the kindling (1), and in the seasoning stage (c) the formed kindlings are cooled to a temperature not exceeding 20°C. 7. The method according to claim 6, characterized in that in step (a) of preparing the raw material the wood chips impregnated with stearin are crushed by cutting into short sections. 8. A method according to claim 6 or 7, characterized in that in step (a) of preparing the raw material, first wood, preferably lime wood, is crushed to form wood wool, then the wood wool balls are disentangled into individual fibres, arranged in layers and wound into loose rolls, then the rolls are immersed in a bath of melted stearin, and the stearin-soaked wood wool fibres are cooled and then subjected to crushing by cutting into short lengths. 9. The method according to claim 8, characterized in that the wood wool fibers impregnated with stearin are cut into sections of no more than 7 mm in length. 10. A method according to one of the claims 8-9, characterized in that in step (a) of preparing the raw material before the process of cutting the stearin-impregnated wood wool fibres into short lengths, wood shavings in the form of stearin-impregnated wood shavings, being waste from the production of kindling in the form of braided braids, are added as a supplement to the raw material. 11. A method according to any one of claims 6 to 9, characterized in that in step (a) of preparing the raw material, wood chips in the form of wood shavings impregnated with stearin, being waste from the production of kindling in the form of braided braids, are used as the input material. 12. A method according to any one of claims 6 to 11, characterized in that in step (b) of forming the kindling, the crushed wood chips impregnated with stearin are first heated, preferably to a temperature of 45°C, then the mass is placed in the mould cavity, after which a preliminary pressure of 1.5 MPa is exerted on it by means of a punch for a time of 0.5 to 2 seconds, then the pressure is reduced for a time of 2 to 4 seconds, after which the full pressure of 2 MPa is exerted for a time of 0.5 to 2 seconds. 13. Method according to one of claims 6-12, characterized in that in the seasoning step (c) the formed kindlings are stored at a temperature of no higher than 20°C for a period of no less than 24 h before packaging.