JP3317771B2 - Incense - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION This invention is smoking for incense, i.e. related to <br/> mosquito and incense for Buddhist altar, more particularly, the combustion time without the possible long risk of fade-out at the time of combustion, thus Even if the weight and size are reduced, the same smoking time as that of the conventional incense can be secured, and the volatilization rate of the active ingredient is excellent.
Related to incense sticks for smoking . In this specification, smoke
“Incense sticks” means mosquito coils and Buddhist altar incense sticks.
Below, when these are collectively referred to simply as incense).

[0002]

2. Description of the Related Art As is well known, incense sticks such as mosquito coils and Buddhist altar incense sticks are combustible or supportive agents such as pyrethrum extract cake powder, wood powder, foliage powder such as cedar and tea, tub powder, corn starch. The base material is a paste such as glue, a fungicide such as dehydroacetic acid, a pigment, etc., and water is added to a mixture of active ingredients such as insecticidal components for mosquito coil and incense stick for Buddhist altars. It is manufactured by extrusion punching or extrusion to a weight and size such that it smokes for about 7 hours for mosquito coils and about 40 to 50 minutes for Buddhist altar sticks, and then dried.

[0003] The conditions required as a base material for such incense sticks are: (a) when the incense stick is burned, it is kept burning for a predetermined time without extinguishing; (ii) the volatilization rate of the active ingredient is high; (C) there is no irritation and no off-flavor during smoking, and (d) it has good machine forming aptitude in the kneading, extrusion punching step or extrusion molding step.
And (e) stable and inexpensive supply.

Conventionally, as a base material of mosquito coils, pyrethrum extract meal powder, wood flour, foliage, and the like occupy a large portion thereof.
Pyrethrum extract meal powder has less irritation and off-flavor when burned, and is a raw material with excellent mechanical forming suitability in the kneading and extrusion punching process, but most are imported from foreign countries, There is a drawback that the cost is high, and the production amount of pyrethrum is decreasing. On the other hand, wood flour and foliage emit smoke when burned,
There are drawbacks of emitting mucosal irritants, off-flavors, and tar components, and these have also been heavily relied on overseas in recent years, and their costs have been increasing. Also, from the standpoint of protecting the natural environment and saving resources, it is desired to reduce the amount of the base material used as described above and to develop another base material instead.

[0005] Conventionally, as an alternative material to the base material of the incense stick, for example, coffee bean shell endothelial powder (JP-B-60-5)
No. 8201) and corn core powder (JP-B 61-61)
No. 11922) have been proposed, but their development points are mainly to suppress generation of smoke, mucous membrane irritation and off-flavor during combustion. On the other hand, JP-A-48-7
No. 2336 proposes to use a fine mineral powder such as talc, clay, diatomaceous earth, kaolin, bentonite, and silicic anhydride as a part of the base material. Also, Japanese Patent Application Laid-Open
No. 118836 discloses a mosquito coil using fired diatomaceous earth fine powder, Japanese Patent Application Laid-Open No. 55-57503 discloses a mosquito coil using calcium carbonate, and Japanese Patent Publication No. 58-26721 discloses glassy volcanic rocks and glass. Mosquito coil using fired fine powder of high-quality volcanic ash is described. These reduce the generation of pungent odor, peculiar odor, tar content, etc. based on the combustion of wood flour by reducing the amount of wood flour, and also improve the mechanical strength by reducing the water absorption of the product, It also aims to improve the volatilization rate of the active ingredient. However, in general, when such a fine mineral powder is used, if the product hardness is sufficiently increased by blending the usually used amount of the paste, it is obtained with an increase in the blending amount of the fine mineral powder. The flammability of the product worsens, and the extinguishment occurs.On the other hand, if the amount of the paste is reduced to improve the flammability and eliminate the extinction, the strength of the molded product is remarkably reduced, making it impractical. I will.

[0006]

From the viewpoint of resource saving as described above, by increasing the burning time of the base material, even if the weight and the size of the incense are made smaller than the conventional incense stick, the same combustion as in the past can be achieved. It is desired to develop a base material that can secure time. However, in this case, it is necessary to simultaneously satisfy the requirement that the incense stick be burned for a predetermined period of time without burning out and that the volatilization rate of the active ingredient be high. Also, in order to reduce the size and weight of the incense stick,
It is required that the material be excellent in machine formability and that the strength does not change, that is, have a certain level of bending strength, and also that the material be supplied stably and inexpensively as a base material as described above.

JP-A-48-62946 teaches that extracted cake flour of a Dutch sensiti or a sessile plant of the sect. Netherlands is effective in delaying the burning rate of incense. However, these are not always sufficient to satisfy the above conditions, and have problems in cost and stable supply. JP-B-46-28119 discloses another method of delaying the burning rate in which an inorganic layer containing an insecticidal component is attached to the surface of a mosquito coil base material layer. However, in order to sufficiently delay the burning rate, it is necessary to attach a large amount of the inorganic layer to the surface of the base material. In that case, however, there is a problem that the burning may disappear. In addition, after a liquid obtained by kneading an inorganic substance is applied to the surface of a mosquito coil and dried, then a liquid containing an insecticidal component is further dropped and dried. It is difficult to say that it is suitable for industrial production that produces incense in large quantities at low cost.

In general, in order to delay the burning rate of the incense stick, it is necessary to increase the amount of the paste to sufficiently solidify the base material. However, in that case, the burn-off may occur, and the volatilization rate of the active ingredient may decrease. That is, the delay of the burning speed and the extinction of the combustion have an inseparable relationship, and if the burning speed is to be delayed, the extinction of the combustion is likely to occur. On the other hand, sufficient flammability is secured to prevent the extinction. It is necessary. Conventionally, a base material that simultaneously satisfies such conflicting requirements has not been found,
For this reason, the thickness of the conventional mosquito coil has a thickness of 3.5 mm x a width of 6 mm (cross-sectional area of about 21 mm ² , weight of about 14 g). Thus, the burning time could only be adjusted slightly depending on the type of substrate.

Accordingly, an object of the present invention is to increase the burning time without fear of extinguishing at the time of burning, so that even if the weight and the size are reduced, it is possible to secure a smoking time equal to or longer than that of the conventional incense stick. Mosquito coil with excellent volatilization rate of active ingredients,
An object of the present invention is to provide incense sticks such as incense sticks for Buddhist altars. Another object of the present invention is to provide an incense stick using a base material which is excellent in long-term flammability, has little mucous membrane irritation and off-flavor, has good machine moldability, and can be supplied stably and at low cost. It is in.

[0010]

According to the present invention, there is provided an incense stick characterized by incorporating sepiolite as one component of a base material to achieve the above object. In the burning of the incense stick, it is preferable to mix the sepiolite at a ratio of 3 to 25% by weight based on the total weight of the incense stick in order to sufficiently delay the burning rate.

[0011]

The present inventors have studied various materials as a base material for incense sticks.
Effective for delaying the burning rate despite not causing extinguishment during burning, that is, it can maintain a burning state for a long time, without impairing the volatilization rate of the active ingredient at all, and has good suitability for machine molding The present inventors have found that the present invention does not cause mucous membrane irritation or an unpleasant odor due to combustion and is most suitable as a base material for reducing the size and weight of the incense stick, thereby completing the present invention. That is, the present invention is characterized in that sepiolite is used as a part of the base material of the incense stick, thereby simultaneously satisfying the conflicting demands of slowing down the burning rate and preventing extinction, and at the same time, has a high volatilization rate of the active ingredient. It is possible to secure the rate.

The sepiolite used in the present invention is:
A hydrous inosilicate mineral of magnesium, Mg ₈ H
₂ (Si ₄ O ₁₁ ) ₃ .3H ₂ O (see Chemical Dictionary, page 369; according to Nagy & Bradley et al., Mg ₈ Si _{12
O 30 (OH) 1 (OH} 2) are said to be ₄ · 8H ₂ O composition). Its analytical values, there are variations because it contains limestone, quartz, smectite, dolomite, various impurities such as talc by origin, SiO ₂ about 35-62%, M
gO about 15-30%, other CaO, Al ₂ O ₃ , Fe
_{Although it is 2} O ₃ , Na ₂ O, K ₂ O, etc., sepiolite itself is a fine fibrous material, and has a crystal structure in which fibrous materials are alternately stacked and have a fine tunnel between them. Such sepiolite is commercially available,
It is readily available.

The mechanism by which such sepiolite can simultaneously satisfy the conflicting demands of delaying the burning rate of incense and preventing extinction has not yet been theoretically and completely elucidated. However, it has been confirmed that the main component of SiO ₂ and MgO themselves cannot be expected to have the effect of delaying the burning rate, and thus it is presumed to be based on the above crystal structure. That is, the innumerable microtunnels of the sepiolite itself and its crystal structure act as barriers to combustion to suppress combustion propagation, and the air taken into the microtunnels contributes to the combustion of other combustible base material components. This contributes to the prevention of extinction, and as a result, it is considered that the conflicting demands of retarding the burning rate and preventing extinction are simultaneously satisfied. Furthermore, when sepiolite is granulated with water and dried, consolidated particles can be easily obtained by entanglement of single fibers, and this property also acts as a binder in molding incense sticks. There is no loss in mechanical strength. In addition, sepiolite has thixotropic properties and has a stable wet volume and a thickening effect, so that it is also excellent in suitability for mechanical molding during incense stick extrusion molding.

As described above, the incense stick of the present invention, by incorporating sepiolite, can prolong the burning time without extinction at the time of burning, and therefore can secure the same burning time as the conventional incense stick. However, weight and size can be reduced. As a result, the amount of raw materials used is reduced, costs can be reduced, resources can be saved, and the amount of smoke and the amount of emitted mucosal irritants are reduced. In general, when the same base material is used, the burning speed increases as the thickness of the incense becomes thinner.If the cross-sectional area is reduced by half, the length must be doubled to secure the same burning time. The reduction in size does not translate into a reduction in weight. However, in the case of the incense stick of the present invention, by appropriately setting the amount of sepiolite to be blended, even if the thickness of the incense stick is thinned, the burning speed is delayed, so that the length may be about the same as that of the conventional incense stick, and the weight may be reduced. Can be reduced. Further, according to the study of the present inventors, it has been found that by reducing the thickness of the incense stick, the volatilization rate of the active ingredient is improved, and it is difficult to extinguish the active ingredient. Therefore, the volatilization rate of the active ingredient can be further improved by reducing the thickness of the incense stick. As a result, it is possible to mix the active ingredient in a small amount.

The compounding amount of sepiolite is 3 to 25% by weight, more preferably 5 to 20% by weight based on the total weight of the incense stick. If the content of sepiolite is less than 3% by weight, it is difficult to obtain a sufficient effect of delaying the burning rate, which is not preferable. On the other hand, if the compounding amount of sepiolite exceeds 25% by weight, extinguishing occurs particularly in the incense having a large cross-sectional area,
Not preferred. In addition, the particle size of sepiolite is 50 in consideration of suitability for machine molding, surface smoothness of a molded incense stick, and the like.
It is desirable to use a mesh pass, more preferably an 80 mesh pass.

Other base materials for the incense stick include pyrethrum extract meal powder, wood powder, foliage powder such as cedar and tea, coconut powder, coffee bean shell endothelial powder, corn core powder, carbon and other conventionally known various materials. A combustion aid can be used. Also,
As the paste, tab powder is mainly used. In addition to tab powder, conventionally known substances such as corn starch, carboxymethylcellulose, dextrin, polyvinyl alcohol, gum arabic, and defatted flaxseed meal can be used.
It is not preferable that the amount of the paste is too large because the paste easily extinguishes during burning.

In the case where the incense stick of the present invention is used as a mosquito coil, various known insecticides can be used as the active insecticide, but from the viewpoint of safety, pyrethroids such as pinamine forte and ethok are used. Insecticides are preferred. The incense stick of the present invention may further contain, in addition to the above-mentioned various components, a dye such as malachite green and a fungicide such as dehydroacetic acid. The incense stick according to the present invention is obtained by kneading the above-mentioned various components with water and shaping it into an appropriate shape. Can be used as In the case of a mosquito coil, the compound is generally produced by kneading the composition with water, extruding the mixture into a sheet, punching it into a spiral, and drying. The active ingredient can be impregnated by spraying, coating, dropping, dipping, or the like after incense molding. According to the present invention, even if the size and weight of the incense stick are reduced, the same burning time as that of the conventional incense stick can be secured, but the size of the incense stick is generally 5 to 50 mm ² , and more preferably 5 to 20 mm ² is desirable. . Incense size is 5m
If it is less than m ^{2 or more} than 50 mm ² , the volatilization rate of the active ingredient is undesirably reduced.

[0018]

EXAMPLES Hereinafter, the present invention will be described more specifically with reference to Test Examples and Examples, but it is needless to say that the present invention is not limited to the following Examples.

Test Example 1 As shown in Table 1, the amount of sepiolite was added to a predetermined amount of pyrethrum extract cake powder, wood flour, and tub flour while varying the amount added, mixed, and approximately equal amount of warm water was added. The mixture was extruded into a belt shape by an extruder, then punched into a spiral shape by a punching machine, and dried by air drying to obtain a test incense stick (thickness: 3.
5 mm, width 6 mm). Various characteristics of the incense stick were measured. The results are shown in Table 1.

[Table 1] As is clear from the results shown in Table 1, the incense stick containing sepiolite according to the present invention has a significantly longer burning time per volume as the incorporation amount of sepiolite increases as compared with the incense stick not containing sepiolite. It did not go out again. Further, almost no off-flavor was generated during the combustion, and the moldability and the drying property were also good. In addition, by blending sepiolite, the blending amount of the expensive pyrethrum extract meal powder could be greatly reduced.

Test Example 2 As shown in Table 2, with respect to a predetermined amount of pyrethrum extract meal powder, wood flour, tea flour, and tub flour, the amount of sepiolite added was changed and mixed. Hot water was added and kneaded, the mixture was extruded, extruded into rods of various sizes with a cross-sectional area of Xmm ² , cut into a certain length, and dried by air drying to obtain a test incense stick. In this case, pinamine forte was used as an active ingredient. About this incense stick, the burning rate and the volatilization rate were measured. The results are also shown in Table 2.
The volatilization rate was determined by collecting smoke with a funnel-shaped suction device, absorbing the smoke into silica gel, extracting with a solvent, and then performing gas chromatography.

[Table 2]

As is clear from the results shown in Table 2, incense sticks containing the sepiolite of the present invention (Examples Nos. 5 to 8)
Is a conventional incense without sepiolite (eg N
o. Compared with 9), the burning rate was delayed, and the effect became more significant as the blending amount of sepiolite was increased, and even when the blending amount was increased, extinguishing during burning did not occur. On the other hand, incense sticks in which starch was added to increase the amount of paste (Example N)
o. 10 and 11) show that although the effect of retarding the burning rate is recognized, extinction occurs, and in particular, as the amount of starch increases, the thickness of the incense approaches the normal size (20 mm ² ),
It can also be seen that the larger the value, the more easily the extinction occurs. Furthermore, incense containing talc (eg N
o. Nos. 12 and 13) have no effect of retarding the burning rate, and the burning rate is conversely high. On the other hand, in the incense containing magnesium silicate (Examples Nos. 14 and 15), the thickness of the incense is small. Although a delay effect is recognized when it becomes thinner,
It can be seen that the incense is inferior to the incense containing the sepiolite of the present invention. As is clear from Table 2, the combustion speed of 56 minutes / 10 cm when the cross-sectional area X of the conventional incense stick (Example No. 9) is 30 mm ² is equal to that of Example No. of the present invention. No. 6 having a cross-sectional area of 15 mm ² , No. 7 with a cross-sectional area of 10 mm ² , 8 is comparable to the burning rate of 5 mm ² , which means that the diameter of the incense can be reduced and / or the length of the incense can be shortened in order to achieve the same burning rate as a conventional incense. This means that usage can be reduced. In addition, the incense stick of the present invention containing sepiolite showed a volatilization rate of the active ingredient equal to or higher than that of a commercially available mosquito coil. In addition, the volatilization rate of the active ingredient does not decrease so much even if the blending amount of sepiolite is increased, but the volatilization rate of the active ingredient decreases in the incense blended with starch, and in particular, the volatility decreases significantly as the blending amount of starch increases. Understand. Further, incense sticks having various cross-sectional areas having a cross-sectional area of 30 mm ² or more other than those shown in Table 2 were formed, and the burning rate was measured for each of them. As a result, sepiolite 7.5
For incense with a weight percentage of 7 in the case of a cross-sectional area of 40 mm ²
6 min / 10 cm (no blend: 65 min / 10 cm), 81 min / 10 cm in the case of a cross-sectional area of 50 mm ² (no blend: 71 min /
10 cm) and the burning rate was delayed. However, the cross-sectional area is 20m
As compared with m ² or less, the delay ratio tended to decrease as the cross-sectional area increased. The cross-sectional area is 50
If it exceeds mm ² , it will be extinguished during combustion, which is not preferable.

Example 1 A incense stick having a cross-sectional area of about 13 mm ² and a burning time (about 7 hours / roll) having substantially the same burning time as that of a commercially available mosquito coil can be obtained by removing pyrethrum extract wood powder, wood powder, tea powder, and tub. Add a predetermined amount of a burning base material containing flour mixed with sepiolite, pinamine forte, other malachite green, an antifungal agent, etc., mix, knead by adding about equal amount of warm water, and extrude it into a belt shape with an extruder. Then, it was punched into a spiral by a punching machine and dried by air drying to produce a test incense stick. (The amount of pinamine forte used at this time was the same as that of a commercial incense stick (0.3%). 1 volume). When I used this incense stick (6.3g) in a room of 6 tatami mats,
The smoke was smoked for a burning time of 7 hours, and mosquitoes could be completely controlled. Further, the volatilization rate of the active ingredient was measured for this incense, and it was 69% or more compared to the commercially available incense A 64% and the commercially available incense B 68%, which were equal to or higher than the burning rate even though the burning rate was delayed.

Example 2 An incense stick having a cross-sectional area of about 7 mm ² and having substantially the same burning time and volatilization rate as a commercial mosquito coil, and sepiolite mixed with pyrethrum extract cake powder, wood powder, tea powder, and tub powder A predetermined amount of the burned base material, pinamine forte, other malachite green, an antifungal agent, and the like are added and mixed, kneaded by adding approximately equal amounts of warm water, and extruded into a belt shape by an extruder, and then a punching machine. To produce a test incense stick. When the amount of raw material used for one incense stick was examined, it was possible to manufacture the incense stick with a raw material as small as 54% using a combustion base material, thereby reducing costs and saving resources.

Example 3 Combustion obtained by blending sepiolite with pyrethrum extract cake powder, coconut powder, and tub powder having a cross-sectional area of about 10 mm ² having substantially the same outer diameter (about 12 cm) as a commercially available mosquito coil. Add and mix predetermined amounts of base material and ethok, other malachite green, fungicide, etc., knead by adding about equal amount of warm water,
This was extruded into a belt shape by an extruder, then punched into a spiral by a punching machine, and dried by air drying to produce a test incense stick. When one roll of this incense stick (about 12 g) was used outdoors in a kennel, there was no mosquito bite for a very long time of 12 hours compared to about 6 hours for burning a commercial incense stick.

Example 4 The diameter (2 mm) and length (1
4cm), incense powder, cedar leaf powder, birch bark powder, tub powder, tea powder mixed with a predetermined amount of a burning base material mixed with sepiolite, fragrance, other pigments, fungicides, etc. Warm water was added and kneaded, and the mixture was extruded into a rod by an extruder and dried by air drying to produce a test incense stick. When this incense stick was burned in a Buddha room of 8 tatami mats, the burning time of the commercial incense stick was about 40 minutes, and for a long time of 69 minutes, there was no off-odor and a faint fragrance was flowing.

Example 5 A burning incense having the same size as a commercially available mosquito coil, mainly charcoal powder, wood flour, pyrethrum extracted lees flour, and tub flour blended with sepiolite, as well as vaporthrin and other malachite green, Add a predetermined amount of fungicide and mix, knead by adding about equal amount of warm water, extrude this into a strip shape with an extruder, then punch in a spiral shape with a punching machine, and dry by air drying to produce This was used as a test incense stick. One incense stick (about 75c
m) and a commercial mosquito coil was used as a comparison, and smoked in a 4.5 tatami room, and sensory evaluations such as smell and irritation were compared by five persons. As a result, there was clearly a significant difference, and the mosquito coil of the present invention smelled and hardly felt irritation. In this test, incense sticks not containing sepiolite were prepared, and the burning time was measured and compared with the test incense sticks (sepiolite: 20% by weight). As a result, unmixed incense stick 24 minutes / 10c
The burning rate of the test incense stick was 48 minutes / 10 cm, which was twice as long as that of m.

[0027]

As described above, the incense stick according to the present invention can have a longer burning time without falling off during burning by blending sepiolite as one component of the base material. Weight and size can be reduced to ensure the same burning time as incense. As a result, the amount of raw materials used is reduced, costs can be reduced, resources can be saved, and the amount of smoke and the amount of emitted mucosal irritants are reduced. Further, by reducing the thickness of the incense stick, an effect of further improving the volatilization rate of the active ingredient is obtained, and as a result, the advantage that the amount of the active ingredient can be reduced can be obtained. In the case of using sepiolite in accordance with the present invention, since the stable wet volume and thickening effect can be obtained, excellent mechanical molding aptitude during incense extrusion, also the mechanical strength of the product also acts as a binder enhancing The effect is obtained.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-200575 (JP, A) JP-A-4-210621 (JP, A) JP-A-5-310546 (JP, A) JP-A-48-50 72336 (JP, A) JP-A-51-121520 (JP, A) JP-A-52-99238 (JP, A) Kunio Yoshida, Knowledge and Transactions of Minerals-Industrial Minerals-, Japan, Tsusho Sangyo Published by the Investigation Committee, March 7, 1992, Revised New Edition, 10th Edition, pages 771-781 (58) Fields investigated (Int. Cl. ⁷ , DB name) A01N 25/20 A01N 25/08 A61K 7 / 46 JICST file (JOIS) CA (STN) REGISTRY (STN)

Claims (4)

(57) [Claims] 1. An incense stick for smoking, comprising sepiolite as one component of a base material. 2. The compounding amount of sepiolite is 3 to the total weight.
The incense stick for smoking according to claim 1 which is -25% by weight. 3. The incense stick for smoking according to claim 1, wherein the particle size of the sepiolite is 50 mesh pass. 4. The incense stick for smoking according to claim 1, wherein the incense stick has a cross-sectional area of 5 to 50 mm ² .