JPS6230198A - Tablet detergent - 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] Industrial applications The present invention relates to tablet detergents.

More specifically, the present invention provides cleaning active ingredients (along with cleaning active ingredients)
2. Tablet detergent with excellent water solubility, containing a specific inorganic chloride, a blowing agent, and a disintegrant.

Conventional Technology There are two types of detergents that are commonly used: liquid type and granular type9. The former liquid type is mainly used for kitchens, bathrooms, and washrooms, while the latter granular type is mainly : Used for washing clothes etc.

Incidentally, although liquid detergents have the advantage of not being bulky and easily soluble in water, they have the disadvantage that viscous liquid adheres to containers, measuring cups, etc., impairing the usability.

On the other hand, granular detergents are made into hollow particles by spray drying in order to improve their solubility. have.

Therefore, in order to overcome the drawbacks of such liquid detergents and granular detergents, attempts have recently been made to develop tablet detergents.

This tablet detergent has the advantage of being easier to use than the above-mentioned liquid detergents and granular detergents, but on the other hand, it is strong enough to withstand handling and transportation, and it dissolves quickly in water when used. However, in general, increasing the tablet strength by increasing the molding pressure has the disadvantage that the solubility in water decreases.

Many proposals have been made to improve these shortcomings. Some of these methods include, for example, forming the mixture by decomposing or volatile substances, making it porous by subjecting it to heat treatment, and mixing carbonate and solid acid to generate carbon dioxide gas in water. A method to promote dissolution of tablets in water, and a method to make tablets easier to disintegrate in water by adding a disintegrant widely used in the pharmaceutical field (Japanese Patent Publication No. 44-177)
45, Japanese Patent Laid-Open No. 47-27208), etc.

However, although all of these methods improve the solubility in water to some extent, they are not fully satisfactory in practical terms, especially when no mechanical force is applied, such as when washing by hand. The reality is that a tablet that dissolves in water has not yet been obtained. This is because in tablets containing a large amount of surfactant, such as detergents, the surfactant hydrates in water and becomes extremely viscous, which slows down the penetration of water into the inside of the tablet. This is because the dissolution promoting effect is not sufficiently exhibited.

Problems to be Solved by the Invention Under these circumstances, an object of the present invention is to provide a tablet detergent that has excellent water solubility and quickly dissolves in water without applying mechanical force. .

Means for Solving the Problems The present inventors have conducted intensive research to achieve the above object, and as a result, we have developed a foaming agent and disintegrating agent consisting of an inorganic chloride, a carbonate, and a water-soluble solid acid as active agent components. It was discovered that by combining the two, the solubility was improved mutually and the objective could be achieved, and based on this knowledge, the present invention was completed.

That is, the present invention provides, together with the active agent component, (A) a chloride containing 3 to 70% by weight of a monovalent or divalent cation;
5 to 70% by weight of a blowing agent consisting of a carbonate and a water-soluble solid acid, the weight ratio of the carbonate to the water-soluble solid acid being in the range of 0.25:1 to 4:1, and (C) a disintegrant. 2~
The present invention provides a tablet detergent characterized by containing 40% by weight.

The active agent component in the detergent of the present invention is 1. A surfactant used in ordinary granular detergents, for example, an average carbon number of 10
A linear alkylbenzene sulfonate having ~16 alkyl groups, an olefin sulfonate having an average of 10 to 20 carbon atoms, a straight or branched alkyl group or alkenyl group having an average of 10 to 20 carbon atoms, and Average, 5-8
Alkyl ether sulfate or alkenyl ether sulfate with mol of ethylene oxide added, average carbon number 10~
Alkyl sulfate having 20 alkyl groups, saturated or unsaturated fatty acid salt having an average of 10 to 22 carbon atoms, general formula (wherein R is an alkyl group or alkenyl group having 10 to 22 carbon atoms, and Y is a carbon number of 1 to 22) 3 alkyl group or counter ion,
2 is a counter ion) Anionic surfactant such as α-sulfo fatty acid salt or α-sulfo fatty acid ester salt, carbon number 10-2
has 0 alkyl or alkenyl groups, and 1 to
A nonionic surfactant such as polyoxyethylene alkyl ether or polyoxyethylene alkenyl ether to which 20 moles of ethylene oxide is added is used. These may be used alone or in combination of two or more.

The chlorides used in the detergent of the present invention contain monovalent or divalent cations). Monovalent cations include lithium chloride, sodium chloride, potassium chloride, ammonium chloride, etc.; Magnesium chloride, calcium chloride, etc. These chlorides may be used alone or in combination of two or more, and those containing crystal water may also be used.

The foaming agent used in the detergent of the present invention is composed of a carbonate and a water-soluble solid acid, and examples of the carbonate include lithium carbonate, sodium carbonate, potassium carbonate, ammonium carbonate, literum bicarbonate, sodium bicarbonate, Examples include potassium hydrogen carbonate and ammonium hydrogen carbonate, and each of these may be used alone or in combination of two or more. Examples of water-soluble solid acids include citric acid, succinic acid, fumaric acid, maleic acid, tartaric acid, oxalic acid, malonic acid, crotonic acid, benzoic acid, lactic acid, malic acid, and adipic acid. Each of them may be used alone or in combination of two or more, and in the case of a polybasic acid, a salt type may also be used.

The ratio of the carbonate to the water-soluble solid acid is 0.2 by weight.
Selected from the range of 5:1 to 4:1. If this ratio deviates from the above range, the effects of the present invention will not be fully exhibited.

On the other hand, as a disintegrant, it has good water wettability and swells with water, as classified in the field of pharmaceutical preparations, but
= Substances that do not dissolve are suitable, and examples of substances belonging to this category include starch, hydroxypropyl starch, carboquine methyl cellulose, hydroxypropyl methyl cellulose, crystalline cellulose, α-cellulose, and carboxymethyl starch. These disintegrants may be used alone or in combination of two or more.

In the detergent of the present invention, the chloride content is 6 to 70
The content of the foaming agent is selected in the range of 5 to 70% by weight, and the content of the disintegrating agent is selected in the range of 2 to 40% by weight. If the content of even one of these components exceeds the above range, the solubility improving effect will be low and the object of the present invention will not be fully achieved.

In addition to the above-mentioned essential ingredients, the detergent of the present invention may optionally contain:
Other ingredients used in regular granular detergents, such as inorganic builders such as sodium tripolyphosphate, zeolites, sodium sulfate, organic builders such as sodium citrate, sodium ethylenediaminetetraacetate, sodium nitrilotriacetate, polyethylene glycol, etc. Additives such as dyes, enzymes, and bleaching agents can be included.

The composition thus obtained can be easily formed into tablets according to commonly used tablet forming methods.

Effects of the Invention The tablet detergent of the present invention is highly water-soluble and easily dissolves in water (-) without applying mechanical force.
It is suitable not only as a laundry detergent for electric washing machines, but also as a kitchen, bathroom, and hand-washing detergent (
=It is used and has high practical value.

EXAMPLES Next, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited to these Examples in any way.

Example 1 After uniformly mixing powder components according to the following composition,
6.59 of this mixture was placed in a cylinder with an inner diameter of 25 mm.
, 120 kg was molded under a pressure of 1 cr.

The molded product thus obtained was placed in 3J water at 25°C, and the time until there were no lumps while standing was measured.
Water solubility was determined.

Blending composition AQS/As (weight ratio 1/1)
24.7% by weight fragrance/pigment
0.3 In addition, the solubility of sodium chloride, sodium hydrogen carbonate/succinic acid (weight ratio 2/1), and hydroxypropyl starch was determined by changing their respective proportions, with the sum of these being 75% by weight. The results are shown in the attached drawing as a triangular coordinate diagram, and representative examples are shown in Table 1.

In the figure, the shaded area represents a composition of the present invention whose dissolution time was within 7 minutes.

The abbreviations and details of the components are as follows.

AQS: 014~,8α-olefin sodium sulfonate powder (purity 95%) AS: C1o-14 sodium alkytetraate powder (purity 95%) Sodium chloride, sodium hydrogen carbonate, succinic acid Passed through a 32-mesh sieve with two particle sizes Hydroxyglopyllustarch Nikka Starch Chemical Co., Ltd., Biostarch H Example 2 The effects of various chlorides, blowing agents, and disintegrants were evaluated in the same manner as in Example 1 using the following formulations.

The results are shown in Table 2.

Blend composition AO8/As = 1/1 24.7 weight polychlorinated compound 45 "Carbonate/Water-soluble solid acid 15" Disintegrant 15
〃Fragrance/Pigment 0.3 Ingredients, abbreviations in the table, and details are as follows.

AQS: C14~,8α-olefin sodium sulfonate powder (purity 95%) As: C1,~14 sodium alkyl sulfate powder (purity 95%) Na(l!, K(ll!, MgC!J2. NaH)
C! Q3. KHCO3.

Na, CO2: Particle size 32 mesh sieve product Hydroxyglobil starch Nikka Sei Kagaku, Biostarch H β-starch: Corn starch Carpoxymethyl starch Matsutani Chemical Co., Ltd., PR Engineering MQ
,T11! : Carboxymetal cellulose: Niterin Chemical Industry,

[Brief explanation of drawings]

The figure is a triangular coordinate diagram showing the relationship between the water solubility of a tablet detergent composition and the blending ratio of sodium chloride, sodium bicarbonate/succinic acid (weight ratio 2/1), and hydroxypropyl starch.

Claims (1)

[Claims] 1 Together with the activator component, (A) 6 to 70% by weight of a chloride containing monovalent or divalent cations, (B) a carbonate and a water-soluble solid acid, and a combination of a carbonate and a water-soluble solid acid. Blowing agents 5 to 7 with a weight ratio in the range of 0.25:1 to 4:1
A tablet detergent characterized by containing 0% by weight and 2 to 40% by weight of (C) a disintegrant.