JPS5844645B2 - Improved manufacturing method for incense sticks - Google Patents

Description

[Detailed description of the invention] The present invention relates to an improved method for manufacturing incense sticks.

Currently available commercially available incense sticks, such as Buddhist altar incense sticks, use cedar leaves, tabacus leaves, etc. as the main raw materials (burning agent), and add dyes, various fragrances, etc. in addition to a binder containing taba bark powder as an active ingredient. Then, an appropriate amount of warm water is added to these, mixed and kneaded, extruded through an extruder into threads of appropriate thickness, cut, and air-dried to form a finished product.

However, in such a method, the fluidity of the mixture after mixing and kneading is poor, and problems such as a decrease in workability in the next extrusion step and variations in quality due to these problems are likely to occur.

To compensate for this drawback, it is common practice to improve fluidity by increasing the water content during kneading, but in this case, various steps are taken in the drying process, which determines the quality of incense sticks. Obstacles appear.

For example, it takes a long time to dry, and the quality of the product is likely to suffer from defects such as gloss, ignition, poor fire retention, and easy breakage due to insufficient drying.

In order to improve the above drawbacks, the combined addition of sodium alginate, carboxymethyl cellulose, polyvinyl alcohol, etc., was investigated, but according to these methods,
Even if the effect of slightly improving fluidity is recognized, the properties cannot be sufficiently improved.

For example, sodium alginate, carboxymethyl cellulose, etc. are all soda salts, which promotes the hygroscopicity of the product, which can cause ignition.
Problems such as disappearing may occur.

In addition, these products leave a large amount of carbon remaining after combustion, and in particular, some Buddhist altar incense sticks have restrictions on the amount of carbon remaining in the ash after combustion, so it is difficult to apply them to their production.

Also, when polyvinyl alcohol is added, the same drawbacks as above are likely to occur.

On the other hand, Japanese Patent Publication No. 47-7480 proposes the use of polyethylene oxide as a binder in place of tabacum powder in the production of mosquito coils, but in this case a large amount (at least 10 φ by weight based on the raw material) is proposed. ), the high swelling, high viscosity, and unique properties of polyethylene oxide
Due to the high stringiness, there are many problems, especially in kneading operations when hot water is added.

The present invention is an advantageous method for producing incense sticks that has been completed as a result of various researches in order to improve the numerous deficiencies in the conventional methods as described above. By adding a small amount of polyethylene oxide as an auxiliary agent to improve the fluidity of the raw material mixture in the mixing process, the fluidity and dispersion mixing of various raw materials can be significantly improved and the content of the raw material mixture in the kneading process can be improved. The aim is to significantly reduce the amount of water and, as a result, shorten the time in the drying process, as well as improve productivity in molding processes such as extrusion and improve product quality all at once. .

The polyethylene oxide used in the present invention has a structure in which the main chain is mainly composed of repeating structural units of -e-CH2-CH20→, and has an intrinsic viscosity of 1 or more, but preferably has an intrinsic viscosity of 1 or more. It is a polymer having a viscosity of 1 to 20.

In the present invention, if the intrinsic viscosity is less than 1, it will not be effective unless used in a large amount, and the unit consumption will be poor, and if the intrinsic viscosity is 20 or more, various problems caused by the "mamako" characteristic of polyethylene oxide will increase. Undesirable.

In the present invention, such polyethylene oxide is added to the raw material mixture for producing incense sticks in an amount of 0.5 weight percent or less (based on the mixture).

The raw material mixture for manufacturing incense sticks consists of the main raw material (combustion agent), a binder made of tabby bark powder, dyes, fragrances, and other desired additives, and inorganic powders such as stone powder and diatomaceous earth added as fillers. In some cases.

The main raw materials (combustion agents) include powdered leaves of plants such as cedar leaves, tabby leaves, and pyrethrum leaves, powdered bark of cedar, birch, and other various trees, and wood powder from sawdust. , pyrethrin extract lees, and powdered pyrethrum stems.

When polyethylene oxide is added to the raw material mixture for making incense sticks by about 0.01% by weight, the effect of improving fluidity begins to appear, but when the weight reaches 10% by weight, the basic unit is unnecessarily worsened and problems appear. It is not desirable because there is also

A preferable addition amount is 0.05 to 0.5 weight φ.

In addition, as for the usage form of the polyethylene oxide used in the present invention, it is preferable to use as little water as possible from the viewpoint of facilitating drying, and therefore it is usually preferable to use powdered polyethylene oxide, but other usage forms are possible. It can be used by dispersing or dissolving it in water as desired, and can be arbitrarily adapted to any manufacturing method currently in use.

As described above, the present invention sufficiently improves the rheological properties by adding an appropriate amount of polyethylene oxide to the raw material mixture for producing various types of incense sticks, and improves the flowability of the raw material mixture in conventional methods, for example, in the extrusion process. It is possible to significantly improve the water content in the raw material mixture, thereby improving productivity by shortening the drying time in the drying process and providing products with uniform quality. can.

Furthermore, the incense sticks obtained by the present invention have good combustibility and leave little residual carbon.

Therefore, the method of the present invention is extremely suitable not only for making Buddhist altar incense sticks, but also for producing mosquito coils and other incense sticks, which are formed by forming the kneaded material into a plate shape and then punching it into an appropriate shape such as a spiral shape. .

Next, the present invention will be specifically explained using examples.

Note that the various properties listed in the tables of Examples were evaluated according to the following criteria.

(1) Fluidity is determined by visual observation of the state of extrusion of the composition from an extruder. (2) Workability is determined by comprehensive observation of the entire process. (3) Drying performance is determined by air drying until the moisture content of the product reaches 95%. (4) Quality is comprehensively judged by the product's gloss, ignition, fire retention, ease of breakage, etc. The judgment symbol is as shown below.

◎ Good ○ Fair △ Poor Example 1 20 kg of tabby bark powder as a binder and appropriate amounts of dyes and fragrances were added to 9 to powder 40 obtained by crushing cedar rape and tabacum leaves. After adding 609 grams of various additives and 301 grams of 80°C warm water, the mixture was mixed and kneaded with stirring, and then extruded into a thread through an extruder and air-dried to obtain a product.

The fluidity, quality, etc. at this time were examined, and the results are shown in Table 4.

The hygroscopicity in the table is 3 for incense sticks at relative humidity of 80% and temperature of 25℃.
It was calculated from the increase in weight when left for a long time.

Examples 2 to 5 The same raw material mixture as in Example 1 was used, and the intrinsic viscosity of polyethylene oxide was 3.6.5° to 10.5°.
, 15.2 were added in the amounts shown in the table below, and a product was prepared in the same manner as in Example 1.

At this time, the fluidity, drying properties, quality, etc. were investigated.

The results are shown in Table 2. Examples 6 and 7 Using raw material mixtures as shown in the table below, polyethylene oxide with an intrinsic viscosity of 3.5 was added in the amounts shown in the table below, and the same procedure as in Example 1 was carried out. Manufactured sesame incense.

The fluidity, drying properties, quality, etc. at this time were examined.

The results are shown in Table 3. Comparative Examples 6 and 7 The same raw material mixture as in Example 1 was used, polyethylene oxide having an intrinsic viscosity of 15.7 was added thereto, and a product was prepared in the same manner as in Example 1.

The results of examining fluidity, workability, drying properties, and quality are summarized in Table 4.

In Comparative Example 7, a particularly significant increase in viscosity was observed, making extrusion difficult and resulting in a pocked product surface.

Example 8 and Comparative Example 8 The main raw materials (combustion agent) consisting of white birch bark powder and cedar wood sawdust powder, binder tab resin powder, polyethylene oxide with an intrinsic viscosity of 15.7, and a temperature of 80°C were thoroughly kneaded. This was extruded into a thread using an extruder and air-dried to obtain a stick-shaped incense stick.

Table 5 shows the workability and quality of the product shape, along with a comparative example in which polyethylene oxide was not added.

Claims (1)

[Claims] 1. A mixture of the main raw materials (combustion agent) such as cedar leaves or tabby leaves, a binder made of tabby bark powder, dyes, fragrances, and other additives is poured into a mixture and mixed and kneaded. An improvement in an incense stick characterized by adding polyethylene oxide of 0.5 weight φ or less (relative to the mixture) sufficient to improve the fluidity of the mixture, in a method for producing an incense stick, which comprises mixing, then molding and drying. Manufacturing method.