JPS58101199A - Stabilizing composition for powder chlorine bleaching agent - 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 stabilizing compositions of powdered chlorine bleach that produce hypochlorous acid or hypochlorite salts in aqueous solution.

Powdered chlorine bleach, which generates hypochlorous acid or hypochlorite in an aqueous solution, has good bleaching and sterilizing properties, so it can be used for bleaching household clothing, septic tanks, swimming pools, etc. These bleaching agents include trichloroisocyanuric acid, dichlorisocyanuric acid, potassium dichloroisocyanurate, sodium dichloroisocyanurate, diocx dimethylhydantoin, tetrachloro-a-glucoruril, and salami powder. be.

However, these powdered chlorine bleaches have poor stability during storage and decompose to generate chlorine gas. As a result, undesirable effects on the human body such as irritating odors and allergies, and inconveniences such as corrosion of packaging containers occur. Therefore, dichloroisocyanuric acid and potassium dichloroisocyanurate.

Sodium dichloroisocyanate and the like are industrially produced in large quantities because of their excellent stability. However, since these substances still do not have sufficient stability, proposals have been made to add certain fragrances and stabilizers such as melamine. However, even with the addition of these stabilizers, chlorine bleach is still not sufficiently stabilized and cannot be used in products for mass consumers such as household bleach. For example, these powdered chlorine bleaches may be used in powder form, but it is convenient to use them as a detergent for the amount used in I@.

It is preferable for these tablets to be packaged one by one in aluminum/polyethylene laminate to avoid moisture absorption from the outside. However, if stored for an excessively long period of time, alonium will corrode and form small pores, resulting in a decrease in stability.

The inventors of the present invention have conducted extensive studies on the stabilization of powdered chlorine bleach, and have discovered that a more significant stabilizing effect can be obtained by adding zeolite, and have thus arrived at the present invention.

That is, the present invention provides a stabilized composition for a powdered chlorine bleach, which contains a powdered chlorine bleach that produces hypochlorous acid or hypochlorite in an aqueous solution and zeolite. It is.

The zeolite used in the present invention may be either naturally occurring zeolite or synthetic zeolite, and may be either crystalline zeolite or amorphous zeolite, but synthetic zeolite is more preferred. Zeolites generally have water of crystallization and have a water content of 5 to 25% by weight in a saturated state. Although such a hydrous zeolite may be used, it is preferable to use a zeolite containing no crystal water, preferably less than saturated water of hydration, and more preferably a zeolite containing no crystal water.

A preferred zeolite has a skeleton structure represented by the following general formula (1).

”2/no)x・muI2O3・(sio2),
(1) (where M is sodium, potassium, calcium, or magnesium, n is a number equal to the valence of the lower atomic number, and X is 0
．． 7-1.5, y is 0.8-1o. ) The weight ratio of 1 g of salt bleach to zeolite in the composition of the present invention is not limited to %, but the actual weight ratio is preferably in the range of 9715 to 70150. That is, if the amount of zeolite is small, it will not be sufficiently effective, and if the amount is large, it will just be wasted. In producing the composition of the present invention, the particle size of powdered chlorine bleach and zeolite is adjusted to 16 mash, although there is no particular limitation.
It is preferable to use a material with a sieve passage rate of 95% or more.

The compositions of the present invention may further optionally contain diluents such as sodium sulfate, sodium bicarbonate, sodium carbonate, sodium tripolyphosphate, sodium biroate, sodium phosphate, disodium phosphate, trisodium phosphate. Inorganic salts such as sodium citrate, sodium oxalate, sodium tartrate, sodium conophosphate, sodium nitrilotriacetate, sodium ethylenecyaminetetraacetate, polyethylene glycol (molecular weight 2000-2
0000), carboxymethyl cellulose sodium salt, hydroxyethyl cellulose, alkylbenzene sulfone Jl)ium.

Organic acid salts such as sodium alkyl sulfate, sodium alkyl sulfonate, polyethylene glycol alkyl ether, polyethylene glycol alkyl phenol ether, polymer compounds, metal chelating agents, anionic surfactants, nonionic surfactants, etc., and fragrances. , additives, dyes, etc., commonly used ingredients to make products for applications such as bleach, bleach detergent, septic tank disinfectant, pool disinfectant, etc. can be added.

Hereinafter, the present invention will be explained in more detail with reference to examples. Note that parts in the examples are based on weight.

Example I ABODI *Mu type zeolite Na 12 AZ 128 engineering, 2
048 ((Ha20) 6 (A/20. enter 5xo2) 1
21 (Product name: Toyo Soda Kogyo Zeorum A-3) A mixture of 5 compounds A to K having the above composition was compressed into tablets of 1 sl each, tightly packed in aluminum pyropackaging, and stored in a constant temperature room at 20°C for 6 months. The corrosion occurring on the aluminum surface of the pillow packaging was then observed. Fifty samples of each were stored, and S samples were taken out at random every month, the packaging was torn, and the corrosion of the aluminum inside was observed. The results are shown in Table IK.

Table 1 It is indicated by the number of corroded bags out of 5 bags of food.

The 6th month of Naomu's pores were opened.

Example 2 G A composition having the above-mentioned composition was prepared, and 5I quantities were sealed in Al-based pyro-pyro packaging and stored for 6 months. As in Example 1, the corrosion aCt that occurs in the alkaline electrophotography was measured.

The results are shown in Table 2.

Table 2 Example 3 A mixture of four types of H-2 having the above composition was compressed into 5 tablets in an amount of 1@50I to produce flat cylindrical tablets. This was sealed and stored in a 500 cc wide polyethylene bottle. The bottle was opened after being stored at room temperature for 6 months. H had a strong pungent odor of chlorine, but I~ had almost no chlorine odor.

Applicant's agent Kaoru Furutani

Claims (1)

[Scope of Claims] t. A stabilized composition for powdered chlorine bleach, characterized by containing a powdered chlorine bleach that produces hypochlorous acid or hypochlorite in an aqueous solution, and zeolite. 2. Claim 1 in which the powdered chlorine-based whitening agent is sodium dichloroinocyanu-pentarate, potassium dichloroisocyanurate or dichloroisocyanuric acid! l first
Compositions as described in Section.艮The composition according to claim 1, wherein the zeolite has a structure represented by the following general formula (1). (M2/n0)x・mul,03・(sio2)y(1)
(In the formula, V is sodium, potassium, calcium or magnesium, n is a number equal to the valence of M, X is o, 7-
1.5 sV is 0.8 to 10) 4. The composition according to claim 5, wherein the zeolite has a water content of substantially 0. 1 Dichloroisocyanuric acid? ? A weight ratio of one or more powdered chlorine bleach selected from the group consisting of dichloromethane, potassium dichloroisocyanurate, and dichloroisocyanuric acid and zeolite whose water content is substantially KO. The composition according to claim 1, wherein the composition contains 97/3 to 70,150.