JPH08283103A - Insecticidal incense - Google Patents

Abstract

PURPOSE: To obtain an insecticidal incense not generating an irritating odor on combustion, having the substantially same combustion rate as that of the extracted residue powder of Dalmatian pyrethrum, not going out during, the combustion, and excellent in continuous combustibility by using easily available bamboo powder as a combustion-assisting agent for the insecticidal incense. CONSTITUTION: The powder of a bamboo such as Phyllostachys pubescens, cv. hetorocycla or cv. nabeshimana is used as a combustion-assisting agent. The insecticidal incense contains 0.01-2wt.% of a pyrethroid compound, 45-90wt.% of a combustion-assisting agent except the powder of the bamboo and 5-50wt.% of a binder. The combustion-assisting agent except the powder of the bamboo is Japanese cedar powder, willow powder, etc. The binder is the powder of Machilus thunbergii Sieb. et. Zucc, starch, etc. The insecticidal incense is obtained by mixing an insecticidal activity ingredient compound or its formulation, the combustion-assisting agent, the binder, a nitrate salt, etc., adding water to the mixture, kneading the mixture, molding the kneaded product with a molding machine such as a press-molding machine, an extrusion- molding machine or an injection molding machine, and subsequently drying the molded product.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to insecticidal incense.

2. Description of the Related Art Conventionally, insecticidal incense for controlling mosquitoes, flies, etc., so-called mosquito coiling incense has been used as a supporting agent for insecticidal chrysanthemum extract powder (dust powder) and other insecticidal active ingredients such as pyrethrum extract and synthetic pyrethroid. It has been manufactured by mixing, adding a binder such as tab powder and water, kneading, and drying.

[0002]

By the way, in recent years, the use of synthetic pyrethroids as an active ingredient of insecticidal incense has become popular, and the production of pyrethrum has decreased, so that the pyrethrum extract powder (cass powder) which is a raw material for the combustion-supporting agent ingredient has been reduced. ) Is becoming difficult to obtain, and there is a need for a combustion-supporting agent that has better availability of raw materials, has no irritating odor during combustion, and is excellent in continuous flammability without extinguishing. There is.

[0003]

According to the present invention, by using readily available bamboo powder as a combustion-supporting agent for insecticidal incense, there is no irritating odor when burning, and burning is similar to dust. It has a high speed and can produce a good incense that does not disappear during burning. As the bamboo powder used, generally, bamboo powder of the genus Bamboo or the genus Bamboo,
Examples of the powder include bamboo powder of Meng So bamboo, Kinmei bamboo, Kamiko bamboo, Kinmei Menso sect, etc. Usually, powder is obtained by removing leaves from these bamboos, drying and pulverizing them.

As the insecticidal active ingredient compound used in the insecticidal incense of the present invention, it is preferable to use a pyrethroid compound excellent in safety, and specific examples thereof include:
For example, pyrethrin, allethrin, pralethrin, transfluthrin, resmethrin, flamethrin, empentrin, terrarethrin, phthalthrin and the like can be mentioned. These insecticidal active ingredient compounds are usually found in mosquito coils.
It is contained in an amount of 0.01 to 2% by weight. The pesticidal active ingredient compound is, if necessary, formulated into an emulsion, an oil, a microencapsulated preparation, an inclusion preparation, etc., and mixed into another incense base material.

The insecticidal incense of the present invention usually contains, in addition to the insecticidal active ingredient compound and bamboo powder, a binder, and if necessary, other combustion-supporting agents, synergists, dyes, mildew-proofing agents, and fragrances. As the binder, for example, tab powder, starch, processed starch products, tragacanth gum, gum arabic, guar gum, ganville extract powder, natural polymers such as casein, polyvinyl alcohol, polyacrylamide, sodium polyacrylate,
Examples thereof include synthetic polymers such as polyethylene oxide, polyvinylpyrrolidone, methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose salt, carboxymethyl starch salt, dialdehyde starch, and cationic starch, which may be used alone or in combination of two kinds. The above is mixed and used. The content of the binder in the insecticidal incense stick is usually 5 to 50% by weight.

Examples of the combustion-supporting agent other than bamboo powder include juniper powder, sandalwood powder, camphor powder, peach tree powder, cedar powder, willow powder, springwood powder, honoki powder, linden powder, spruce powder, yellow poplar powder, wig. Powder, acacia powder, porcupine powder, psyllium powder, psyllium powder, sawdust powder, cat powder, kiri powder, shioji powder, balsa powder,
Rawan powder, birch powder, citrus tree powder, wood powder such as shiitake hoda tree powder, Asteraceae plant powder, Rubiaceae plant powder, Honeysuckle family plant powder, Mesaceae family plant powder, Ginkgo family plant powder, Lamiaceae plant powder, Examples include dry powders such as Fusarium plant powder, Apiaceae plant powder, Gramineae plant powder, Moraceae plant powder, Astragalus plant powder, and pyrethrum extract powder (cass flour). If necessary, one or more of these may be bamboo. It is used as a mixture with the powder. The content of the combustion-supporting agent in insecticidal incense is usually 45 to 90% by weight.

The pigments used in the insecticidal incense of the present invention include, for example, malachite green and other organic pigments, inorganic pigments, dyes, etc.
Examples thereof include acids such as benzoic acid, sorbic acid, dehydroacetic acid, p-hydroxybenzoic acid, o-phenylphenol and the like, salts and esters thereof, and the incense stick usually contains 2% by weight or less of each.

The insecticidal incense of the present invention is usually prepared by mixing an insecticidal active ingredient compound or its preparation, a combustion-supporting agent, a binder, a nitrate, etc., and kneading the mixture with water, followed by press molding, extrusion molding or injection molding. It is manufactured by molding with a molding machine such as a molding machine and drying.

[0009]

EXAMPLES Next, the present invention will be described more specifically by way of examples, but the present invention is not limited to the following examples. First, a production example of the insecticidal incense according to the present invention will be shown. Production Example 1 Allethrin emulsion [allethrin 0.3 part by weight, Hymal BL
Z (Matsumoto Yushi-Seiyaku Surfactant) 0.0347 parts by weight, Himar 1002Z (Matsumoto Yushi-Seiyaku Surfactant) 0.0039 parts by weight and Solvesso 150 (Exxon Chemical organic solvent) 0.04
64 parts by weight] 0.385 parts by weight, 10 parts by weight of dry bamboo powder, 25 parts by weight of tab powder, 0.3 parts by weight of malachite green, 0.2 parts by weight of sodium dehydroacetate and wood powder are added and mixed as 100 parts by weight. Then, an appropriate amount of water was added thereto, and the mixture was well kneaded, extruded and dried to obtain an insecticidal incense having a length of 80 cm. The formability of the incense stick during production was good.

Production Example 2 An insecticidal incense stick was obtained in the same manner as in Production Example 1 except that 20 parts by weight of dry bamboo powder was used. The formability of the incense stick during production was good. Production Example 3 An insecticidal incense stick was obtained in the same manner as in Production Example 1 except that 30 parts by weight of dry bamboo powder was used. The formability of the incense stick during production was good. Production Example 4 An insecticidal incense stick was obtained in the same manner as in Production Example 1 except that 50 parts by weight of dry bamboo powder was used. The formability of the incense stick during production was good. Production Example 5 An insecticidal incense stick was obtained in the same manner as in Production Example 1 except that 70 parts by weight of dry bamboo powder was used. The formability of the incense stick during production was good.

Next, a test example will be shown. Test Example Each of the insecticidal incense sticks obtained in the above Production Examples 1 to 5 was supported horizontally, and when the tip was ignited and burned, there was no irritating odor at the time of burning and it did not disappear during burning. It was In addition, in Production Examples 1 to 5, when each insecticidal incense produced by using dregs instead of dry bamboo powder was simultaneously burned and compared, the insecticidal incense and dregs obtained in Production Examples 1 to 5 were compared. Almost no difference in burning rate was observed between the insecticidal incense and the incense stick produced using the same.

[0012]

EFFECTS OF THE INVENTION The insecticidal incense of the present invention has no irritating odor upon burning and is excellent in continuous burning property without extinguishing.

Claims (2)

[Claims] 1. An insecticidal incense stick containing bamboo powder. 2. A pyrethroid compound of 0.01 to 2% by weight, a bamboo powder-containing combustion-supporting agent of 45 to 90% by weight, and a binder of 5 to 5
An insecticidal incense, which contains 0% by weight.