JPH0816239B2 - Deodorant antifouling agent for flush toilets - Google Patents

Description

TECHNICAL FIELD The present invention relates to a deodorant antifouling agent for flush toilets, and more specifically, to prevent shape collapse during use, sustained release of active ingredients, and effects. The present invention relates to a deodorant and antifouling agent for flush toilets, which is particularly durable and easy to handle, and particularly relates to toilet balls for men's toilet bowl.

(Prior Art) In recent years, with the spread of flush toilets, the living environment has improved, and toilets have become a suitable place for daily living. However, with daily maintenance, organic substances in human waste, scales in water, etc. Inorganic salts and the like stain the toilet bowl and deposit, impairing its appearance and causing a bad odor.

Conventionally, as a toilet bowl for men's toilet bowl, a sublimable substance such as valadichlorobenzene molded into a ball shape has been widely used.On the other hand, it is used as a deodorant antifouling agent for the tank tray of a water storage flush toilet. Is used by filling a polyethylene container with polyethylene glycol as a base material, to which a cleaning component and a fragrance are added, in a plastic container.

(Problems to be Solved by the Invention) In the former toilet bowl, the active ingredient such as paradichlorobenzene sublimes and masks a bad odor, but there is almost no deodorizing action, and the toilet bowl has no effect. It has no stain resistance or cleanability.

On the other hand, in the latter deodorant antifouling agent, the effect of sustaining the effect is obtained by gradually eluting the washing and aroma components into the water.

However, since all conventional cleaning fragrances are based on water-soluble polymer substances, their dissolution rate is generally high,
Further, it is extremely difficult to expect a sustained release of the active ingredient and a long-lasting effect, such as swelling and flowing out as a mud. In order to remedy this drawback, improvements have been made in water-soluble base materials, containers, etc., but these problems have not been fundamentally solved.

Therefore, the object of the present invention is to prevent shape collapse during use, sustained release of the active ingredient, long-lasting effect and excellent deodorant antifouling agent for flush toilets, especially toilet bowls for toilet bowls. Is to provide.

(Means for Solving Problems) According to the present invention, a perfume or deodorant is added to a base containing polyethylene glycol and polyoxyethylene hydrogenated castor oil in a weight ratio of 10: 1 to 10:10. And a deodorizing antifouling agent for flush toilets, which is characterized by containing an antifouling surfactant.

(Function) The present invention, when a mixture of polyethylene glycol and polyoxyethylene hydrogenated castor oil in a fixed ratio is used as the base of a deodorant antifouling agent for flush toilets, the phase of the perfume or the deodorant with respect to the base is Solubility is remarkably improved, and the solubility of polyethylene glycol in water is also suppressed. As a result, it is possible to prevent shape loss during use, excellent sustained release of the active ingredient, long-lasting effect and easy handling. It is based on the knowledge that

Polyoxyethylene hydrogenated castor oil is a substance obtained by addition-polymerizing ethylene oxide to hydrogenated oil obtained by adding hydrogen to castor oil, and it has a lipophilicity and a polyhydric property based on long-chain alkyl groups in hydrogenated castor oil. It is characterized by having both hydrophilicity based on oxyethylene units and being solid at room temperature. This polyoxyethylene hydrogenated castor oil is
It is compatible with high molecular weight polyethylene glycol to form a homogeneous solid base, which slows the dissolution rate of polyethylene glycol and suppresses its swelling tendency. Polyoxyethylene hydrogenated castor oil is also excellent as a solubilizing agent for perfumes and deodorants, and has the action of uniformly solubilizing these components in the base.

The polyoxyethylene hydrogenated castor oil used in the present invention has the formula (1) In the formula, a, b and c are represented by a number such that the total amount thereof is 40 to 80, especially 50 to 70, and it is a white waxy substance having a freezing point of about 30 to 35 ° C.

On the other hand, as the high molecular weight polyethylene glycol, those having a number average molecular weight of 1,000 to 20,000, particularly 6,000 to 15,000 are used.

It is preferable to use polyethylene glycol and polyoxyethylene hydrogenated castor oil in a weight ratio of 10: 1 to 10:10, particularly 10: 3 to 10: 7, and the blending amount of polyoxyethylene hydrogenated castor oil is more than the above range. If the amount is too small, the effect of suppressing the dissolution or swelling of polyethylene glycol and improving the compatibility of the perfume or the deodorant is not sufficient. On the other hand, if it is more than the above range, the sustained release of the active ingredient is not sufficient.

As the fragrance or deodorant, any fragrance usually used for aromatic purposes, for example, plant essential oil such as lavender, lemon oil, rose oil, green oil; animal fragrance such as musk, civet; or synthetic fragrance Examples thereof include aldehydes, esters, ketones and the like, and their mixed flavors.

As the antifouling surfactant, any surfactant having detergency and antifouling property, for example, a nonionic, anionic or amphoteric surfactant can be used. From the viewpoint of compatibility with the base material and the fragrance, it is best to use a nonionic surfactant. Suitable examples thereof are polyoxyethylene alkyl ether, polyoxyethylene alkylphenol ether, polyethylene glycol fatty acid ester, etc., but all nonionic surfactants conventionally used in detergents can be used for the purpose of the present invention. it can. Above all, the amount of ethylene oxide added is 20 to 70
Most preferred is polyoxyethylene nonyl phenyl ether.

If necessary, the deodorant antifouling agent for flush toilets of the present invention may be blended with a compounding agent known per se in a known formulation. For example, it is possible to add methylene blue, cyanine blue, blue color No. 1 or the like as a pigment, and salicylic acid, siabendazole, benzoic acid ester or the like as a bactericidal agent to obtain a refreshing feeling and a clean feeling. Further, if necessary, a chelating agent such as ethylenediaminetetraacetic acid salt can be contained as a sequestering agent.

Further, as a cleaning aid, many builder substances conventionally used in detergents, for example, neutral builders such as urea and sodium sulfate; alkaline builders such as sodium carbonate, sodium tripolyphosphate, sodium pyrophosphate, and sodium silicate are used. , And may be used alone or in combination of two or more. In addition to the above-mentioned water-soluble builders, water-insoluble builders can be used, for example, zeolite (A-type or X-type zeolite), powder-treated or alkali-treated bentonite, and the like can also be used.

In the present invention, the composite substrate is 40% per total amount of the deodorant antifouling agent.
It is preferably used in an amount of 80 to 80% by weight (% and parts are based on weight unless otherwise specified), particularly 55 to 75%. If the content of the composite base is less than 40%, the dissolution rate of the cleaning components will be high, and it may cause deformation of the mold, which is not preferable. Since it becomes small, it is not preferable in terms of cleaning effect. In order to obtain the desired cleaning effect while preventing the deformation of the shape, the amount of the surfactant is 5 to 30%, especially 10 to 20%, and the amount of the cleaning aid is 0 to 30%, especially 0 to 25%. Good to use in. Further, from the viewpoint of deodorant fragrance, it is preferable to use the fragrance in an amount of 0.1 to 10%, particularly 3 to 8%.

The deodorant antifouling agent of the present invention is produced by mixing the above-mentioned components under heating to form a homogeneous melt, and molding the melt.

In the case of a toilet bowl for men's toilet bowl, it is manufactured by injecting the melt into a mold provided with a ball-shaped cavity, cooling it, and removing it from the mold. Further, in the case of the deodorant antifouling agent for the tank plate, the melt may be filled in a plastic container and cooled.

Since the polyoxyethylene hydrogenated castor oil used in the present invention has a relatively low freezing point, it is also an advantage to be able to produce a molten mixture at a relatively low temperature such as 40-60 ° C. Perfume or deodorant has very little tendency to volatilize into the atmosphere.

(Example) The present invention will be described with the following example.

 Various tests in the following examples were conducted as follows.

(1) Liquid-repellent property: The molded product was placed on paper and left for 30 minutes, and then the presence or absence of leaching of the liquid into the paper was examined.

(2) Melting temperature: The molded product was left in a thermostatic chamber at 55 ° C for 1 hour and checked for deformation and melting.

(3) Solubility: The molded product was put into a pipette washer, and water was repeatedly supplied and drained at a rate of 10 times / hour, and the presence or absence of shape collapse and the reduction method were checked.

(4) Antifouling property: A 1% drug solution was prepared, and this solution was applied to a slide glass. A few drops of the ink were dropped on the chemical-coated glass and then left for 5 minutes. Then, 300 cc of water was gradually flowed down on this. The slide glass after the water flow was observed and evaluated according to the following criteria.

5: No ink coloring, 4: Very slight coloring by ink, 3: Slight coloring by ink, 2: Slight coloring by ink, 1: Slight coloring by ink .

(5) Odor intensity: The chemicals consumed after 1, 2, 3, and 4 weeks of use were put in a 60 cm square container and the odor intensity was sensory measured. The evaluation was based on a 6-level evaluation.

Various bases, fragrances, surfactants and dyes having the compositions shown in Table 1 were heated at a temperature of 100 ° C. or lower and stirred to prepare a molten mixture. This is poured into a PE resin cup and cooled to a diameter of 50 mm,
It was formed into a cylindrical shape with a height of 15 mm.

 The obtained results are also shown in Table 1.

 ─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-52-70035 (JP, A) JP-A-57-67698 (JP, A) JP-A-48-92540 (JP, A) JP-A 63- 182400 (JP, A) JP 57-168668 (JP, A) JP 51-143009 (JP, A)

Claims (1)

[Claims] 1. A base containing polyethylene glycol and polyoxyethylene hydrogenated castor oil in a weight ratio of 10: 1 to 10:10, containing a perfume or deodorant and an antifouling surfactant. A deodorant antifouling agent for flush toilets, which is characterized by being formed.