JPH07119439B2 - Fragrance cleaner composition for flush toilet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to an aroma cleaner composition for flush toilets.
The fragrance cleaner for flush toilets is in solid form and can be stored in a container, or can be put into the water tank of the flush toilet directly as it is, or can be attached to the hand washing part of the water tank. Is a drug for gradually dissolving or dispersing the composition in the stored water, washing the toilet bowl and the like together with running water at the time of flushing, and causing the aroma to drift, thereby keeping the inside of the toilet refreshing.

[Prior Art] In this fragrance cleaner composition for flush toilets, a main base is blended in addition to the fragrance component and the cleaning component. This main base not only functions as a binder for solidifying aroma and cleaning ingredients, but also controls the rate of dissolution of the ingredients in running water and stored water to maintain appropriate aroma and detergency for a suitable period of time. It has a role to let. Examples of such a main base include polyethylene glycol, or one in which OH at one end or both ends of polyethylene glycol is replaced with an alkyl group to form an ether or ester (hereinafter referred to as polyethylene glycol type), or propylene oxide and ethylene oxide only. A copolymer type one having hydrogen atoms at both ends is used (for example, JP-A-51-39705, JP-A-53-31709 and JP-A-53-31709).
-131098 and 57-179298).

[Problems to be Solved by the Invention] However, these conventional main bases for fragrance cleaners for flush toilets have the following problems, respectively.

The polyethylene glycol type has a basic problem in that it has poor water-solubility and poor sustainability, and that the water-solubility depends on the water temperature. That is, if the water solubility is too good, the dissolution rate of the blended components will increase, and the effect will be lost in a short time. If the molecular weight is increased to compensate for this point, the water solubility can be suppressed to some extent, but it takes a long time to increase the molecular weight, resulting in high cost and new problems such as difficulty in handling. Also,
When the water solubility is easily influenced by the water temperature, the solubility is different between summer and winter, and as a result, it is not preferred as the main base of the aroma cleaner for flush toilets, which requires moderate sustainability throughout the year.

On the other hand, in the case of a copolymer type of propylene oxide having only hydrogen atoms at both ends and ethylene oxide, water solubility can be reduced by increasing the content of propylene oxide units in addition to increasing the molecular weight,
By these adjustments, it is attempted to obtain the desired moderate water solubility. However, if the content of propylene oxide units is increased, the melting point and hardness of the solid matter may decrease, and in extreme cases it may become liquid in the summer, so optimum water solubility and hardness cannot be obtained throughout the year. Have difficulty. As a means of increasing the molecular weight, there is a method of binding a polyalkylene compound with formal or the like, but it is technically difficult to further react a high molecular weight raw material to obtain a high molecular weight, and the obtained one is also expensive. .

It is an object of the present invention to provide a fragrance detergent composition for flush toilets, which comprises a main base material having an appropriate dissolution rate and solubility that does not depend on water temperature.

[Means for Solving Problems] The object is to provide a compound represented by the general formula (I) as a main base: (In the formula, R is an alkyl group having 15 or more carbon atoms or 7 carbon atoms.
The above alkylaryl group, or RO is a lanolin alcohol residue, m is an integer of 10 or more, n is an integer of 100 or more, Are each block-polymerized units).

[Operation and Examples] The compound represented by the general formula (I) is a block copolymer of propylene oxide and ethylene oxide,
It has a residue of lanolin alcohol or an alkyl group or an alkylaryl group via an oxygen atom at the terminal of the propylene oxide unit. The alkyl group preferably has 15 or more carbon atoms, and examples thereof include pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, henecoicyl, and docosyl. The alkylaryl group preferably has 7 or more carbon atoms, and examples thereof include nonylphenyl and octylphenyl. When the carbon number is less than 7, the dissolution rate in water tends to be high.

The degree of polymerization m of the propylene oxide unit must be 10 or more. When it is less than 10, the dissolution rate in water becomes high, which is not preferable. The larger m is, the lower the dissolution rate is, but at the same time, the melting point is lowered. Preferred m is 10 to 60, and the content of propylene oxide units is preferably about 5 to 25% by weight of the whole compound (I). The degree of polymerization n of ethylene oxide needs to be 100 or more, preferably 150 to 1000 in order to avoid a liquefaction phenomenon (melting phenomenon) in the summer.

The melting point of the compound (I) is about 60 to 65 ° C.

The fragrance detergent composition for flush toilets of the present invention contains a general fragrance component, a cleaning component, and other additives in addition to the compound (I) as a main base. The mixing ratio of these components is appropriately selected depending on the product design, but is usually selected within the following range.

(Parts by weight) Main base represented by general formula (I) 50 to 75 Aroma (deodorant) component 10 to 20 Washing component 10 to 5 Other 30 to 0 Aroma (deodorant) component is represented by a compounded fragrance. Deodorant components such as aroma components, malic acid, and glyoxal are listed, and as cleaning components, ether type nonionic surfactants, α-olefin hydrocarbon compounds, alkyl ether sulfates and other substances commonly used in this field Can be used as is. Other components include colorants that impart a feeling of cleanliness to toilet running water, emulsifying solubilizers of oily components, bactericides, chelating agents, and the like, but extenders such as mirabilite and glucose, polyethylene glycol or its derivatives, etc. A solubility control agent and the like may be appropriately blended as necessary.

These ingredients are mixed and molded to form an aromatic agent for flush toilets.As a molding method, the main base component is heated and melted, then the other components are mixed while stirring, and then the mixture is mixed. A method of gradually cooling to near the freezing point and then pouring into a mold to solidify, a method of making each component into a fine powder and uniformly mixing, and then compression molding are adopted.

Next, the composition of the present invention will be described based on Examples.
The invention is not limited to only such embodiments.

Example 1 Of the following components, the main base component was heated and melted, and then the remaining components were added with stirring and mixed, and the mixture was gradually cooled to near the freezing point and then put into a mold and solidified to be used for the flush toilet of the present invention A fragrance was made.

Example 2 The following components were mixed and solidified in the same manner as in Example 1 to prepare the aroma cleaner for flush toilet of the present invention.

Example 3 The following components were mixed and solidified in the same manner as in Example 1 to prepare an aroma cleaner for flush toilet of the present invention. Comparative Example 1 A comparative aroma cleaner for flush toilets was prepared in the same manner as in Example 1 except that polyethylene glycol # 6000 was used as the main base.

Test Example 1 (running water test) As shown in FIG. 1, it has a water inlet opening (1) at the top,
A lid (3) with 4 water holes (2) on the side and a diameter of 40 mm
50 g of the composition (5) of each of Examples 1 to 3 and Comparative Example 1 was filled in a container composed of a cylindrical main body (4) having a height of 70 mm and cooled and solidified.

These containers were installed in a low tank (water storage: 12. TOTO S-670 manufactured by Totoki Kiki Co., Ltd.) for household flush toilets, and the number of usable times and the average absorbance of running water in the toilet (630n
m) (Spectrophotometer UV-265F manufactured by Shimadzu Corporation)
W) did. The temperature of the water in the raw tank and the temperature of the injected water were maintained at 30 ° C. or 5 ° C., and each of them was set to automatically flush (run water) once an hour. The usable number of times means the number of times until the average absorbance of running water in the toilet becomes zero under the above conditions.

The results are shown in Table 1.

As is clear from Table 1, when the composition of the present invention is used, the composition excels in durability at both high and low temperatures, and is particularly excellent at high water temperatures (30 ° C).

Test Example 2 (Temperature Dependence Test) The following test was conducted to show that the solubility of the compound (I) used as the main base of the aroma cleaner composition of the present invention in water is unlikely to depend on the water temperature. It was

A 22% by weight aqueous solution of the compound (I) used in Example 3 and an 18% by weight aqueous solution of polyethylene glycol 20000 were prepared at 10 ° C., and the viscosity at that time was measured by a Brookfield rotational viscometer. Then, the temperature of each aqueous solution was gradually raised, each viscosity at 20 ° C. and 30 ° C. was measured, and the temperature dependence of the viscosity was investigated. Results are shown in FIG.

As is clear from FIG. 2, the viscosity of the aqueous solution of the compound (I) used in the present invention has little temperature dependence, and in particular, in the high temperature region, the viscosity of the polyethylene glycol aqueous solution is greatly reduced, but the high viscosity is high. I am maintaining.

Thus, if the viscosity is constant, the diffusion of the solute into water is also constant, and as a result, the solubility does not change so much at high temperature in the present invention. This is consistent with the result of Test Example 1. On the other hand, polyethylene glycol, which has a low viscosity at high temperature, has high solubility and poor sustainability.

[Effects of the Invention] According to the fragrance cleaner composition for flush toilet of the present invention, (1) the dissolution rate in water is higher than that of a fragrance cleaner composition having a polyethylene glycol type as a main base. (2) As is clear from Test Examples 1 and 2, the solubility of the composition of the present invention in water is not affected by the water temperature, and therefore, the water temperature changes in summer and winter. The dissolution rate does not change so much, and stable sustainability can be expected throughout the year. (3) The compound (I) used as the main base in the present invention
Differs from polyethylene glycol type in that it has a hydrophobic group in addition to a hydrophilic group, so it has a greater detergency than polyethylene glycol type. Play.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a container for filling a fragrance detergent for flush toilets used in Test Example 1, and FIG. 2 is a graph showing temperature dependence of viscosity of a main base aqueous solution and a polyethylene glycol aqueous solution used in the present invention. Is.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tadamitsu Isoda 64-9, Shinmeimiyakita, Uji City, Kyoto Prefecture (56) References JP-A-59-56499 (JP, A)

Claims (1)

[Claims] 1. General formula (I): (In the formula, R is an alkyl group having 15 or more carbon atoms or 7 carbon atoms.
The above alkylaryl group or RO is a lanolin alcohol residue, m is an integer of 10 or more, n is an integer of 100 or more, And CH ₂ CH ₂ O _n are each a block polymerization unit), which is used as a compounding agent.