JPS60188498A - Chlorine type bleaching composition - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a stable and high-speed continuous tablet composition of a solid chlorine bleach that produces hypochlorous acid or hypochlorite in an aqueous solution.

Powdered chlorine bleach, which produces hypochlorous acid or hypochlorite in an aqueous solution, is used for purposes such as bleaching household clothing and disinfecting septic tanks and swimming pools due to its good bleaching and sterilizing performance. These bleaching agents include trichloroisocyanuric acid, dichloroincyanuric acid, potassium dichloroisocyanurate, sodium dichloroisocyanurate, dichlorodimethylhydantoin, tetrachloroglucoruril, and canola powder.

However, these chlorine bleaches have poor stability during storage and decompose to generate chlorine gas. As a result, pungent odor,
This may cause undesirable effects on the human body, such as allergies, and other inconveniences, such as corrosion of packaging containers. Therefore, solid chlorine bleaches such as dichloroisocyanuric acid, potassium dichloroisocyanurate, and IJum (dichloroisocyanurate) are industrially mass-produced because of their excellent stability. ing.

It goes without saying that these chlorine bleaches can be used in powder form, but it is convenient to use them in the form of tablets for one-time use. However, if chlorine bleach is stored as is, it absorbs moisture from the air and decomposes, reducing the amount of available chlorine, so it must be stored in an aluminum/polyethylene laminate or the like. However, when mass-produced in a factory, pinholes that cannot be detected with the naked eye inevitably occur, resulting in moisture absorption and decomposition during storage after consumption.

Under these circumstances, the inventor of the present invention conducted intensive research to overcome the above-mentioned drawbacks and found that when sodium benzoate is added to the above-mentioned chlorine bleach, the decrease in available chlorine due to moisture absorption is significantly prevented. The present invention was completed based on the discovery that this sodium benzoate exhibits an extremely excellent lubricating effect during tableting and enables continuous high-speed tableting. Solid chlorine bleach and benzoic acid that produce chlorite or hypochlorite)
A chlorine bleach composition containing IJum is provided.

In the present invention, the mixing ratio of chlorine bleach and sodium benzoate is 99.510.5 to 80/
A range of 20 is preferable; if it is less than this, the effect will be insufficient, and if it is more than this, no further improvement in the effect will be observed. The composition of the present invention can be prepared by simply mixing chlorine bleach and sodium benzoate, and the manufacturing method is not particularly limited. It is preferable to use

The compositions of the present invention may further optionally contain diluents such as sodium sulfate, sodium bicarbonate, sodium carbonate, sodium tripolyphosphate, sodium birophosphate, sodium phosphate, disodium phosphate, trisodium phosphate. inorganic salts, organic acids such as citric acid, chain acids, tartaric acid, succinic acid or their sodium salts, sodium nitrilotriacetate, sodium ethylenediaminetetraacetate, polyethylene glycol (molecules 112,000 to 20,000)
, carboxymethyl cellulose sodium salt, hydroxyethyl cellulose, sodium alkylbenzene sulfonate, sodium alkyl sulfate, sodium alkyl sulfonate, organic acid salts such as polyethylene glycol alkyl ether, polyethylene glycol alkyl phenol ether, polymer compounds, metal chelating agents, anionic Addition of commonly used ingredients for making products for uses such as surfactants, non-ionic surfactants, etc., as well as fragrances, pigments, dyes, etc., bleaches, bleaching detergents, septic tank disinfectants, pool disinfectants, etc. I can do it.

Furthermore, when the composition is to be tabletted, binders such as hydroxypropyl cellulose, carboxymethyl cellulose, sorbitol, sodium polyacrylate, and cornstarch; excipients such as mirabilite and salt; and effervescent agents such as sodium bicarbonate. A disintegrant, a disintegrant, etc. can be added.

In addition, when making tablets, the amount of sodium benzoate to be blended may be within the above range, but when obtaining a product with relatively high hardness, it should be 1 to 3% (W/W) of the total composition, and a product with a low hardness. In this case, it is preferably 5% (w//w) or more of the total composition. Tableting (5) -m- can be carried out by any method known per se, and in the case of the composition of the present invention, tableting could conventionally only be done at low speed using a single-shot tablet machine. , 1 with rotary complete tablet press
It is possible to compress more than 400 tablets per minute.

Next, an example will be given and explained.

Example 1 Compositions (A-E) shown in Table 1 were compressed into tablets of 3 g each, sealed in aluminum pyropackaging, and then the packaging was packed with a diameter of 0.5 g.
A hole was made in each sample, and the sample was stored in a constant temperature and humidity room at 40°C and 80% RH for 20 days, and the amount of available chlorine was measured. Thirty samples of each were stored, and on the 10th and 20th, five samples were taken out at random, the packaging was broken, and the available chlorine was measured. The results are shown in Table 2.

Margin below (6) Table 1 Table 2 Example 2 5g of each of the compositions shown in Table 3 was placed in an aluminum pillow package, a pinhole with a diameter of 0.5 m was made in the same manner as in Example 1, and the mixture was heated at 40°C. The available chlorine was measured when stored in a room with 80% RH for 20 days. The results are shown in Table-4.

Table 3 Lower margin (7) Table 4 Lower margin (8) Example 3 The composition shown in Table 5 was directly compressed into tablets.

Table 5 Inventive products 6 and 7 exhibited good tableting properties without adhesion to the kinematics or cracking, and could be compressed for 1 hour continuously at a rate of 500 tablets per minute; however, comparative products 4, Compositions Nos. 5 and 6 had a large frictional resistance, caused the tablet press to squeak, and adhered to the kinematics, making it impossible to press the tablets. Invention 6
The weight, hardness and appearance of the 70 tablets are shown in Table 6.

Table-6 Procedure amendment! ! ! ' (Spontaneous) 1 Indication of the case 1982 Patent Application No. 45289 52 Name of the invention Chlorine bleach composition 3 Person making the amendment Relationship to the case Applicant address 1-1F 1-chome, Nihon-Kayabacho, Chuo-ku, Tokyo Number 1
No. 0 Name (091) Kao Soap Co., Ltd. Representative Maru 1) Yoshi Department 4 Agent Name (8632) Patent Attorney Ko If Nobuaki: Spontaneous 6, “Claims” of the specification to be amended and "Detailed Description of the Invention" Column 7, Contents of Amendment (1) The scope of claims in the specification is corrected as shown in the attached sheet.

(2) In the specification, "Example 3" from the first line of page 10 to the bottom line of page 11 is corrected as follows.

[Example 3] The composition shown in Table 5 was made into tablets by a direct compression method.

From here on, Table 5. As a result of compressing each sample with a rotary tablet press, Invention Product 6
Comparative products 4 and 5 showed good tableting properties without adhesion to the kinematics or capping, and could be compressed for 1 hour continuously at a rate of 500 tablets per minute, whereas comparative products 4 and 5 showed good tableting properties with no adhesion to the kinematics or capping. It was so large that it made a squeaking sound on the tablet press and stuck to the kinematics, making it impossible to press the tablets. The weight, hardness and appearance of the tablets of invention products 6 and 7 are as shown in Table 6.

Table 6 2. Claim 1: A chlorine bleach containing benzoic acid and a solid chlorine bleach that produces hypochlorous acid or hypochlorite in an aqueous solution. agent composition.

2. A special feature where the solid chlorine bleach is replaced by sodium zochloroisocyanurate, potassium zochloroisocyanurate or zochloroisocyanuric acid! 1-A composition according to claim 1.

3. The composition according to claim 1 or 2, which is in tablet form.

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Claims (1)

[Scope of Claims] 1. A chlorine bleach composition comprising a solid chlorine bleach that produces hypochlorous acid or hypochlorite in an aqueous solution and sodium benzoate. 2. The composition according to claim 1, wherein the solid chlorine bleach is sodium dichloroisocyanurate, potassium dichloroisocyanurate or dichloroisocyanuric acid. 3. The composition according to claim 1 or 2, wherein the weight ratio of solid chlorine bleach to benzoic acid is 99.510.5 to 80/20. 4. The composition according to any one of claims 1 to 3, which is in the form of a tablet.