JPS61278393A - Purifying agent for bath water - Google Patents

Abstract

PURPOSE:To prevent a decrease in effective oxygen, to eliminate the deposition and capping on a stamp during tableting and to tablet continuously at high speed by incorporating inorg. peroxides and benzoates into the titled bath water purifying agent when the agent is produced. CONSTITUTION:Inorg. peroxides (e.g., sodium bicarbonate) and benzoates (e.g., sodium benzoate) are incorporated to produce a bath water purifying agent. Effective oxygen is not decreased due to moisture absorption in the bath water purifying agent, the preservation stability is excellent, the deposition and capping on a stamp during tableting are eliminated, continuous and high-speed tableting is made possible and tableting is advantageously carried out.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a bath water cleaner.

[Prior Art and Problems to be Solved by the Invention] Conventionally, bath water cleaners containing bleaching disinfectants as a main ingredient have been used for cleaning bath water.

However, although chlorine-based bleach disinfectants f such as dichloroisocyanurate that generate hypochlorous acid in solution have excellent bleaching and disinfection effects, when used as the main component of bath water cleaners, chlorine It has drawbacks such as emitting odors and erasing the color of bath additives.

Furthermore, inorganic peroxides, which are oxygen-based bleaching disinfectants, have advantages such as being odorless and not changing the color of bath additives when used in bath water cleaners. However, it has poor stability during storage,
It decomposes and generates oxygen gas, which may not provide the expected purification ability or cause problems such as corrosion of the packaging container.

For this reason, a method has been proposed in which an inorganic peroxide is blended with each type of stabilizer. However, even if these stabilizers are added, the stability of the inorganic peroxide cannot be said to be sufficient.

Therefore, bath water cleaners containing these inorganic peroxides are not used in powder form, but are used in the form of tablets for each use. This is not only convenient, but also improves stability. Furthermore, if each of the tablets is packaged in an aluminum/polyethylene laminate, moisture absorption from the outside can be prevented. However, stability may still be impaired depending on the humidity conditions during production. Furthermore, when mass-producing in a factory, pinholes that cannot be detected with the naked eye inevitably occur, resulting in moisture absorption and decomposition during storage after reaching consumers.

[Means for solving problems]

Under these circumstances, the present inventor conducted intensive research to overcome the above-mentioned drawbacks of conventional bath water cleaners containing inorganic peroxides, and found that if inorganic peroxides are blended with benzoate, The present invention was completed based on the discovery that a decrease in available oxygen due to moisture absorption is significantly prevented, and that this benzoate exhibits an extremely excellent lubricating effect during tableting, making continuous high-speed tableting possible.

That is, the present invention provides a bath water cleaner containing an inorganic peroxide and a benzoate.

Examples of the inorganic peroxide used in the present invention include sodium percarbonate, sodium perborate, potassium monopersulfate double salt, and sodium sulfate-sodium chloride-hydrogen peroxide adduct. Among these, potassium monopersulfate double salt is preferred.

The benzoate used in the present invention is preferably a monovalent salt such as an alkali metal salt such as sodium or potassium salt, or an ammonium salt, and among them, a sodium chloride salt is most suitable.

In the present invention, the blending ratio of inorganic peroxide and benzoate is preferably in the range of 97/3 to 75/25 in terms of weight ratio; if it is less than this, the effect will be poor, and if it is more than this, it will not be effective. No further improvement in effectiveness was observed. The bath water cleaner of the present invention can be produced by simply mixing an inorganic peroxide and a benzoate, and the manufacturing method is not particularly limited. It is preferable to use

The bath water cleaner of the present invention may further contain diluents such as sodium sulfate, sodium bicarbonate, sodium carbonate, sodium tripolyphosphate, sodium birophosphate, sodium phosphate, disodium phosphate, and trisodium phosphate. Inorganic salts as agents, citric acid, oxalic acid, tartaric acid,
Organic acids such as succinic acid or their sodium salts, 2) IJ
Sodium lotriacetate, sodium ethylenediaminetetraacetate, polyethylene glycol (molecules! 2000-20
000), carboxymethylcellulose sodium salt,
Organic acid salts such as hydroxyethyl cellulose, sodium alkylbenzene sulfonate, sodium alkyl sulfate, sodium alkyl sulfonate, polyethylene glycol alkyl ether, polyethylene glycol IJ, alcohol alkyl phenol ether, polymer compounds, metal chelating agents, anionic surfactants, non-containing Conventional ingredients for making products for bath water cleaner applications can be added, such as ionic surfactants, etc., as well as perfumes, pigments, dyes, etc.

The bath water cleaner of the present invention can be made into various dosage forms such as powder and tablets, but tablets are particularly preferred. When used as a tablet, a binder such as hydroxypropylcellulose, carboxymethylcellulose, nrubitol, sodium polyacrylate, corn starch;
Excipients such as Glauber's salt and common salt; blowing agents such as sodium bicarbonate, disintegrants, etc. can be blended. In addition, the amount of benzoate to be blended in tablets may be within the above range, but in order to obtain tablets with relatively high hardness, 1 to 3% of the total composition (W/
W l , 5% of the total composition (
w/w 1 or more is preferable. Tablet compression can be carried out by any known method; in the case of the bath water purifier of the present invention, tablets could conventionally be compressed only at low speed using a single-shot tablet machine, but with a rotary tablet machine. 400 tablets per minute with two tablet presses
It is possible to compress into tablets or more.

[Effect]

The mechanism by which the present invention exerts its effects has not yet been completely elucidated.

〔Effect of the invention〕

The bath water cleanser of the present invention has excellent storage stability with little decrease in effective oxygen due to moisture absorption, and can be conveniently formulated into tablets because it can be compressed continuously at high speed without adhesion to the kinematics or capping during tableting. can do.

〔Example〕

Next, an example will be given and explained.

Example 1 - The compositions shown in Table 1 were compressed into tablets of 3 Li- each,
After being sealed in aluminum pillow packaging, it was heated to 50℃, 40℃, and 2
It was stored at 0°C for 3 months and the packaging was observed for blistering. Table-I
K shows the evaluation results of tabletability and blistering.

Table 1 (Parts by weight) *1 Product name manufactured by DuPont Co., Ltd.: IG 0.
:Embryo 0. (Molar ratio) = 1:2:13 *2 Evaluation criteria: ○ Good tabletability Δ Slightly good tabletability Not observed × Slight blistering or clearly blistering Example 2 Among the compositions shown in Table 1, B, C, D, and E each had 3? After compressing into tablets and sealing them in aluminum pillow packaging,
The tablets were stored at 40°C, taken out after one month and three months, and the amount of effective oxygen in the tablets was measured after the packaging was broken. The results are shown in Table-2.

Table-2 Note) The numbers in the table indicate the average value of 5 samples.

Example 3 Each of the compositions shown in Table 3 was used as 3F! - were placed in aluminum pyropackaging, and the amount of effective oxygen in the tablets was measured in the same manner as in Example 2. The results are shown in Table 4.

Table 3 (M Prize) Daily Table 4 Example 4 The compositions shown in Table 5 were formulated by a direct tableting method, and their tabletability was examined.

When each sample was compressed into tablets using a rotary two-tablet press, the composition of 5% showed good tableting properties with no adhesion to the core or capping. Compositions G-3 and H had large frictional resistance, caused squeaks in the tablet press, and adhered to the kinematics, making it impossible to press the tablets.

that's all

Claims (1)

[Claims] 1. Bath water cleaner containing inorganic peroxide and benzoate.