JP3542305B2 - Slowly soluble gel composition - Google Patents

Description

【００６４】
【表２】

【００６５】
【表３】

【００６６】
【表４】

【００６７】
【表５】

【００６８】
【発明の効果】
以上の説明から明らかなように、本発明に係る徐溶性組成物は、カッパー型カラギーナン５０重量％以上を含有するカラギーナン１〜５重量％、少なくとも１種類以上の非イオン性界面活性剤１〜５０重量％及び水を含有するため、流水下でも徐溶性を維持することが可能で、かつ離型性に優れたゲル状の徐溶性組成物を提供することが可能となる。
【００６９】
また、上記構成の組成物中にキレート剤を配合すれば、ゲル化物の離型性を低下させることなく保形性を維持した状態で、容易に溶解速度を調整することが可能となり、金属イオンを捕捉することによってゲル化物の透明性を向上させ、さらに水垢等の付着を防止するという効果を奏する。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an underwater or an environment which can come in contact with water, particularly, a hand-washing portion of a low tank of a toilet, a water storage portion of a low tank, a faceplate portion of a urinal, a wash basin, a kitchen sink or a drain port of a bathroom and piping. The present invention relates to a gel-like slowly soluble composition that gradually dissolves under flowing water such as inside.
[0002]
[Prior art]
2. Description of the Related Art As a slowly dissolving composition that gradually dissolves in water, a solid aromatic detergent disposed in a hand washing portion of a low tank of a toilet has been known. This fragrance detergent is produced by using a surfactant which becomes solid at room temperature as a main component, and adding a cleaning aid such as a fragrance, a liquid surfactant, an enzyme and a chelating agent.
[0003]
However, in the aromatic detergent having the above-mentioned structure, since the surfactant as a main component is solid at room temperature, there is a problem in that the use of a large amount of a liquid raw material cannot be used, and there is a problem in terms of material limitation, and the dissolution rate is free. In addition, there is a problem that it cannot be adjusted to an optimum value, and furthermore, it has to be used together with a drug supply device because it swells due to water absorption.
[0004]
To solve such problems, as described in JP-B-63-56280, 1 to 5% by weight of carrageenan containing 60% or more of lambda-type carrageenan, an anionic detergent and a nonionic detergent There is known a gel-like water-soluble fragrance composition comprising 1 to 25% by weight of at least one detergent selected from agents and a fragrance.
[0005]
Since this water-soluble fragrance composition is a gel, it can be used without limitation even if it is a liquid raw material, and the dissolution rate can be easily adjusted by blending a fast-dissolving substance or a slow-dissolving substance. It is possible.
[0006]
[Problems to be solved by the invention]
However, in the above-mentioned water-soluble fragrance composition, since a carrageenan containing 60% or more of lambda-type carrageenan, which generally has no gelling ability and is highly sticky, is used, the gel strength is weak, so that the shape retention property is low. Is poor, the releasability at the time of removing the gelled material from the mold is not sufficient, and when the obtained gelled material is actually used under running water such as a hand washing part of a toilet low tank, the dissolution rate is significantly large As a result, there has been a problem that the gradual solubility cannot be maintained and the practicability is poor.
[0007]
This is considered to be because, in the case of a gel using carrageenan containing 60% by weight or more of lambda-type carrageenan, the gel disintegrates due to flowing water simultaneously with dissolution.
[0008]
In view of the above, an object of the present invention is to provide a gel-type gradually dissolving composition which can maintain the slow dissolving property even under flowing water and has excellent releasability.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the slowly soluble composition according to the present invention comprises 1 to 5% by weight of carrageenan containing 50% by weight or more of kappa-type carrageenan, and 1 to 50% by weight of at least one or more nonionic surfactants. And water.
[0010]
That is, conventionally, even if it is a copper-type carrageenan, which has been recognized as being unsuitable as a gelling agent for a water-soluble composition because the strength of the obtained gel is increased, by adding a nonionic surfactant, It has been found that the present invention exhibits a slow solubility, and the present invention has been completed.
[0011]
It is necessary to use carrageenan containing copper-type carrageenan in an amount of 50% by weight or more, and it is particularly preferable to use one containing 60% by weight or more. If the content is less than 50% by weight, it becomes difficult to maintain the gradual solubility under running water.
[0012]
Further, since copper-type carrageenan is the most commonly used of the seven isomers, a highly purified raw material can be obtained at a low cost, and a further highly purified raw material can be obtained. Since the gelled product produced by using is excellent in transparency, a slowly dissolving composition having high commercial value can be provided.
[0013]
The nonionic surfactant can be blended in the range of 1 to 50% by weight. In particular, those blended in an amount of 26% by weight or more have an advantage that they have high detergency due to a large amount of surfactant and are useful as detergents. In addition, as a surfactant, an anionic surfactant can be used in the range of 1 to 50% by weight, and a nonionic surfactant and an anionic surfactant can be used in combination. .
[0014]
The dissolution rate of the slowly dissolving composition can be adjusted by the amount of carrageenan and the content of copper-type carrageenan.However, if a chelating agent is further added, the shape retention without reducing the releasability of the gelled product can be achieved. In addition to the above, it is possible to easily adjust the dissolution rate while maintaining the above, and to improve the transparency of the gelled substance by trapping the metal ions, and to prevent the adhesion of water scale and the like.
[0015]
In addition, if various effective ingredients such as a fragrance, a bactericide, a deodorant, and an insecticide are added to the above composition, it becomes possible to obtain a slowly soluble composition capable of supplying the active ingredient little by little. When the active ingredient is water-soluble, it can be blended in the slowly soluble composition without any particular limitation, but it is also possible to use not only water-soluble substances but also hydrophobic substances.
[0016]
That is, in the slowly soluble composition according to the present invention, 0.5 to 35% by weight of a liquid hydrophobic substance at 20 ° C. can be added. However, in order to ensure that the hydrophobic substance is dissolved in the composition, the total content of the hydrophobic substance and the nonionic surfactant is 50.5% by weight or less, and the nonionic surfactant It is preferable that the mixing ratio of the surfactant is 0.3 or more.
[0017]
When the total content is more than 50.5% by weight, a uniform gelled product cannot be obtained due to a reduced amount of water, and when the compounding ratio of the nonionic surfactant is less than 0.3, In addition, a hydrophobic substance having a low SP (Solubility Parameter) value may not be uniformly dissolved.
[0018]
Nonionic surfactants used in the present invention include higher alcohol ethylene oxide adducts, alkylphenol ethylene oxide adducts, fatty acid ethylene oxide adducts, polyhydric alcohol fatty acid ester ethylene oxide adducts, higher alkyl amine ethylenes Oxide adducts, fatty acid alkanolamide ethylene oxide adducts, ethylene oxide adducts of fats and oils, block copolymers of ethylene oxide and propylene oxide (hereinafter referred to as "pluronic surfactants"), ethylene oxide and propylene oxide. Butylene oxide copolymer, fatty acid ester of glycerol, fatty acid ester of bentaerythritol, fatty acid ester of sorbitol, fatty acid ester of sorbitan, fatty acid ester of sucrose Containing active hydrogen such as alkyl ethers of polyhydric alcohols, fatty acid amides of alkanolamines, higher alcohols, alkylphenols, fatty acids, polyhydric alcohols, higher alkylamines, fatty acid amides, fats or fatty acid alkanolamides, etc. A copolymer obtained by subjecting a compound to block addition polymerization of butylene oxide and / or propylene oxide and then addition polymerization of ethylene oxide may be used, but is not limited thereto. These may be used alone or in combination of two or more.
[0019]
Among the above surfactants, Pluronic surfactants in particular have a gelling property such that they absorb water when contacted with water, swell, and then gradually dissolve. Therefore, if a Pluronic surfactant is used as at least one of the nonionic surfactants, it is possible to obtain a composition having high gel strength, excellent shape retention and excellent solubility.
[0020]
In particular, when a large amount of a nonionic surfactant was added in a liquid state, a problem that the strength and slow solubility of the gelled substance was lowered occurred. However, the gelling substance was preserved by using a Pluronic surfactant in combination. It is possible to improve the formability and slow solubility.
[0021]
In addition, an anionic surfactant is blended for the purpose of improving detergency, and specifically, sodium alkylbenzene sulfonate, sodium alkane sulfonate, sodium α-olefin sulfonate, sodium alkyl sulfate, polyoxyethylene alkyl Sodium phenyl ether sulfate, sodium polyoxyethylene alkyl ether sulfate, α-glycerin monoalkyl ether-α'-sulfonate sodium, α-acyl-α'-sulfonyl diglyceride sodium, N-acylmethyl taurine sodium, fatty acid Examples include, but are not limited to, sodium isopropanolamide sulfate and sodium N-acylglutamate, and potassium and lithium salts thereof.
[0022]
Further, the hydrophobic substance used in the present invention is not particularly limited as long as it is a liquid hydrophobic substance at 20 ° C., but the use of a hydrophobic substance at 20 ° C. having an SP value of about 12 or less is preferable. These may be used alone or in combination of two or more.
[0023]
Specific examples of the hydrophobic substance include (1) carbonization of n-pentane, n-hexane, n-heptane, n-octane, α-pinene, β-pinene, limonene, terpinolene, myrcene, p-cymene and the like. Hydrogens, (2) cis-3-hexenol, linalool, geraniol, nerol, citronellol, dimethyloctanoinol, hydroxycitronellol, myrcenol, α-terpineol, borneol, benzyl alcohol, β-f Alcohols such as enylethyl alcohol, cinnamic alcohol, anis alcohol, dimethylbenzylcarbinol and methylphenylcarbinol, (3) n-heptylaldehyde, n-octylaldehyde, n-nonylaldehyde, n- Decyl aldehyde, n-undecyl aldehyde, undecylenaldehyde, Silaldehyde, methylnonylaldehyde, n-tridecylaldehyde, citral, citronellal, hydroxycitronellal, benzaldehyde phenylacetaldehyde, phenylpropylaldehyde, cinamic aldehyde, anisaldehyde, cuminaldehyde, salicylaldehyde, vanillin, ethyl vanillin, aldehydes such as γ-undecalactone, ethyl methylphenylglycidate, γ-nonyllactone, (4) methyl-n-amylketone, ethyl-n-amylketone, methyl-n-hexylketone, methylheptenone, 1-carvone, Ketones such as menthone, piperidone, acetophenone, benzophenone, benzylideneacetone, α-yonone, β-yonone, methylyonone, maltol, nelon, cisdiasmon, coumarin, etc. (5) Musks such as muscone, sibetone, cyclopentadecane, cyclopentadecanolide, ethylene brassylate, 12-oxahexadecanolide, musk xylene, musk ketone, musk ambread, musk tibetene, mosken, etc., (6) Phenols such as anisole, p-acetylanisole, diphenyl oxide, dimethylhydroquinone, anethole, thymol, eugenol, safflor, β-naphthol methyl ether, banitrop and derivatives thereof, (7) benzoic acid, cinnamic acid, Acids such as phenylacetic acid and hydrocinnamic acid; (8) geranyl formate, benzyl formate, ethyl acetate, isoamyl acetate, citronellyl acetate, geranyl acetate, linalyl acetate, bornyl acetate, benzyl acetate, phenylethyl acetate, isoeugenol acetate, propionic acid ethyl, Linalyl lopionate, geranyl propionate, benzyl propionate, ethyl butyrate, isoamyl butyrate, geranyl butyrate, benzyl isobutyrate, n-propyl isovalerate, geranyl isovalerate, ethyl caproate, isoamyl caproate, ethyl caprylate, pyruvine Esters such as ethyl acetate, ethyl acetoacetate, methyl benzoate, ethyl benzoate, geranyl benzoate, benzyl cinnamate, diethyl phthalate, ethyl salicylate, methyl anisate, (9) rose oxide, oxide ketone, linalool oxide, Examples include, but are not limited to, oxides such as silonel, and (10) nitrogen-containing compounds such as indole, skatole, 6-methylquinoline, 7-methylquinoline, 6-isopropylquinoline, and isobutylquinoline.
[0024]
Specific examples of the chelating agent include organic acids such as carboxylic acids having 2 to 10 carbon atoms, hydroxycarboxylic acids having 2 to 10 carbon atoms, polycarboxylic acids and hydroxypolycarboxylic acids, and salts thereof, An aminocarboxylic acid, aminopolycarboxylic acid or polyaminocarboxylic acid having a number of 2 to 10 or a salt thereof can be used. Specific examples include organic acids such as citric acid, malic acid, succinic acid, maleic acid, fumaric acid, gluconic acid, and adipic acid, and salts thereof, ethylenediaminetetraacetic acid (EDTA), nitrilotriacetic acid, and hydroxyethyliminoni. Aminopolycarboxylic acids such as acetic acid, dihydroxyethylglycine, hydroxyethylenediaminetriacetic acid, diethylenetriaminepentaacetic acid, and triethylenetetraminehexaacetic acid, and salts thereof can be used. Examples of the salt include a sodium salt.
[0025]
As described above, the use of the slowly soluble composition according to the present invention makes it possible to gradually supply an active ingredient such as a detergent or a fragrance, a bactericide, or an insecticide into water.
[0026]
In particular, under running water, even if used as it is, the gelled product can maintain its gradual solubility, so that it is not necessary to store it in a container. It exerts an excellent effect as compared with the preparation.
[0027]
【Example】
Hereinafter, the slowly soluble composition according to the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples.
[0028]
In this example, as the slowly soluble composition, specifically, a slowly soluble detergent, a slowly soluble aroma cleaner, a slowly soluble aroma cleaner for a bathtub, and a slowly soluble aroma cleaner for a urinal instead of a toilet bowl, respectively The formulation was evaluated.
[0029]
[Preparation of Slowly Soluble Composition] The preparation method of the slowly soluble composition in the present Examples and Comparative Examples shown in Tables 1 to 5 is as follows.
[0030]
First, carrageenan, which is a gelling agent, is added to water and dissolved by heating while stirring. On the other hand, the surfactant is heated and dissolved in another container. Furthermore, when a hydrophobic substance is blended, it is mixed with a surfactant to form a uniform solution. At this time, if necessary, a coloring agent, a bactericide, a disinfectant, a deodorant, salts, a chelating agent, a pH adjuster, and the like may be added.
[0031]
Next, a surfactant solution is gradually added to the carrageenan aqueous solution heated to 65 to 70 ° C. After mixing, the mixture is poured into a molding container, cooled and solidified, and then released to obtain a gelled product.
[0032]
As the molding container, a flexible plastic container having a regular side of 10 mm on the bottom side and 15 mm on the top side and a height of 40 mm was used, and 25 g of the slowly soluble composition was placed in the container. Was charged.
[0033]
[Evaluation test method]
The gels of Examples and Comparative Examples obtained by the above preparation methods were evaluated by selecting a test method according to the purpose from the following test methods.
[0034]
(Gel strength test)
Evaluation of the gel strength was measured using a rheometer (manufactured by Sun Kagaku) under the following conditions.
[0035]
The sample filled in the molding container was placed on a test table, a probe having a diameter of 10 mm was pressed, and the maximum gel strength was measured at an entry speed of 60 mm / min. The measurement was performed three times for one sample, and the average value was used to evaluate according to the following evaluation criteria.
<Gel strength evaluation criteria (values in brackets are approximate values with rheometer)>
◎: The original shape is maintained even when taken out of the container, and it has both elasticity and hardness, and is elastically deformed and restored to its original shape when pressed with a finger (250 or more)
：: The original shape is maintained even after being taken out of the container, and it has elasticity, but is not easily restored when pressed with a finger (100 to less than 250)
Δ: Poor shape retention when taken out of container. It does not flow even if the container is tilted, but cannot maintain its original shape when taken out (less than 50 to 100)
×: non-gelling, or almost no shape-retaining ability, flowing when the container is tilted (less than 50)
[0036]
(Release test)
Ease of releasing each sample gelled by the above preparation method from the molding container was evaluated. The measurement was performed three times for one sample and evaluated according to the following evaluation criteria.
：: All samples can be released by simply pressing the container △: Can be taken out of the container, but the gel has cracked or partially damaged in three measurements × : Things that cannot be taken out of the container [0037]
(Dissolution rate test)
The following method was used to measure the dissolution rate under running water. A resin net is laid in the drain of the hand washing section of the TOTO low tank (model S670), and each sample taken out of the molding container is placed on the resin net so that the water for hand washing at the time of flushing hits the center of the upper surface of the gel.
[0038]
In such a state, the gel is flushed at regular intervals to dissolve the gel. The water flow conditions at this time were as follows: water volume: 2 liters / flash, water pressure: 3 kg / cm ³ , water flow time: 45 seconds, and measurements were performed at a water temperature of 5 ° C. and 25 ° C., respectively.
[0039]
The measurement was performed by weighing the remaining weight of each sample every predetermined number of flashes. The evaluation criteria are as follows. The smaller the amount of change (degree of decrease) in this numerical value, the lower the dissolution rate, indicating that the compound is gradually soluble.
9: 90% or more and less than 90% of the initial weight 8: 〃 80% or more and less than 90% 7: 〃 70% or more and less than 80% 6: ６０ 60% or more and less than 70% 5: ５０ 50% or more and less than 60% 4: ４０ 40% to less than 50% 3: ３０ 30% to less than 40% 2: ２０ 20% to less than 30% 1: １０ 10% to less than 20% 0: １ 1% to less than 10% ×: Completely dissolved ]
(Dissolution rate test in warm water)
The following test was performed for the purpose of evaluating the dissolution rate in warm water (still water). Using a water tank whose water temperature was adjusted to 35 ° C., each sample was immersed in a water tank with being placed on a glass Petri dish, and weighed after standing for 90 minutes,
(Initial weight-weight after treatment) x 100 / (initial weight)
The weight of the dissolved gel was expressed in% from the equation.
[0041]
(Dissolution rate test in urinals for men)
Each sample was placed on the eyeglass part of a urinal for men (TO370 U370), and a flush valve was operated to flush water every 5 minutes, and the number of flushes until the gel was completely dissolved was measured. The running water conditions were: water volume: 4 liters / flash, water temperature: 25 ° C.
[0042]
[Test results]
(Slowly soluble detergent (1))
Table 1 shows a first formulation example as a slowly soluble detergent. In the table, in each of Examples 1 to 6, carrageenan containing 50% by weight or more of copper-type carrageenan was used as a gelling agent, and the carrageenan was blended in a range of 1 to 5% by weight. In the active state, it is blended in the range of 1 to 50% by weight.
[0043]
On the other hand, Comparative Examples 1 to 3 each used carrageenan containing 60% by weight of lambda-type carrageenan as a gelling agent, and had the same composition as Examples 2, 3, and 5 except for the gelling agent. Have been.
[0044]
As a result of evaluating the gelled product prepared by the above formulation, in Comparative Example 5 in which only the 100% by weight copper-type carrageenan was gelled, the dissolution rate could hardly be confirmed, but the nonionic surfactant was used. It can be seen that the compound exhibits a slow solubility by blending (Example 1).
[0045]
Further, for Examples 1 to 6, the gel strength was high, the releasability was good, and the dissolution rate was such that the gel remained at a water temperature of 25 ° C. at a flowing water volume of 180 liters so that the gel remained. I have. On the other hand, in Comparative Examples 1 to 3, the releasability was not sufficient, and the dissolution rate was large as compared with the corresponding Examples 2, 3 and 5, and the results were not suitable for use under running water. .
[0046]
Further, as in Examples 2 and 3, when the content of the copper-type carrageenan is 50% by weight or more, if the content is the same, almost the same performance is exhibited even if the remaining carrageenan composition is different. On the other hand, when the content of lambda-type carrageenan is 60% by weight or more as in Comparative Examples 1 and 2, even if the content is the same, the carrageenan shows completely different performance depending on the remaining carrageenan composition.
[0047]
That is, when the content of the copper-type carrageenan is 50% by weight or more, it is possible to provide a slowly dissolving composition that can exhibit stable performance only by checking and combining the content alone.
[0048]
(Slowly soluble detergent (2))
Table 2 shows a second formulation example as a slowly soluble detergent. In the table, Examples 7 to 9 are based on the formulation of Example 5, and the change of the dissolution rate was examined by adding EDTA / 4Na as a chelating agent thereto.
[0049]
As can be seen from the results in Table 2, as the amount of the chelating agent added increases, the dissolution rate increases, and the dissolution rate can be easily adjusted.
[0050]
The above-described slowly soluble detergents (1) and (2) are used for hand washing of a low tank of a toilet, a water tank of a low tank, a dishwasher of a urinal, a sink, a sink in a kitchen or a drain port of a bathroom, and a pipe. It can be widely applied in the middle and the like.
[0051]
(Slowly soluble aromatic detergent)
Table 3 shows a formulation example of the slowly soluble aroma detergent. In the table, Examples 10 to 16 are blended in a range of 0.5 to 35% by weight using a citrus-based mixed flavor or an herbal-based mixed flavor as a hydrophobic substance which is liquid at 20 ° C. It is in a state of being uniformly solubilized in the composition by the surfactant.
[0052]
When the hydrophobic substance is blended in the range of 0.5 to 35% by weight as shown in Table 3, the total content of the hydrophobic substance and the nonionic surfactant is 50.5% by weight or less. If the compounding ratio of the nonionic surfactant is 0.3 or more, the hydrophobic substance can be surely solubilized.
[0053]
The gelled product in which the hydrophobic substance is uniformly solubilized in this manner exhibits good performance in both gel strength, releasability and slow solubility, and can provide a practically soluble slow-cleaning aromatic detergent.
[0054]
Note that the slowly soluble aroma detergent in this example can be used for the same applications as the above-described slowly soluble detergent.
[0055]
(Slowly soluble aromatic detergent for bathtub)
Table 4 shows an example of the formulation as a slowly soluble aroma detergent for a bathtub. In the table, Examples 17 to 19 clarify the change in the dissolution rate depending on the type of nonionic surfactant, and Comparative Example 6 shows the change when the content of the copper-type carrageenan was reduced. Is what I saw.
[0056]
Regarding the releasability, all of Examples 17 to 19 were evaluated as good. However, as for Comparative Example 6, the evaluation was "Poor". A dissolution rate test was performed.
[0057]
From Table 4, it can be seen that Comparative Example 6, in which the content of copper-type carrageenan was small, had a remarkably large dissolution rate and could not maintain sustained solubility, as compared with Examples 17 to 19, in which the content of copper-type carrageenan was 60% by weight. I understand.
[0058]
In Example 18 in which a higher alcohol-based surfactant in a liquid form was used as the nonionic surfactant, the dissolution rate in hot water was the highest. However, this surfactant in a liquid form had a pluronic surfactant. The combined use of an EO / PO copolymer as an activator (Example 19) improved the dissolution rate.
[0059]
That is, if a pluronic surfactant is used as at least one of the nonionic surfactants, it becomes possible to improve the gradual solubility. The use of the gradually soluble aroma detergent for bathtub obtained in the present example enables the aroma and cleaning components to be gradually dissolved in warm water such as a bathtub.
[0060]
(Slowly soluble aroma cleaner for urinal)
Using the fragrance detergent of the formulation shown in Table 4, properties as a slowly dissolving fragrance detergent for urinals were examined. As a result, as in the case of the above-mentioned hot water aromatic detergent, Examples 17 to 19 exhibited slow solubility and the service life was at a practical level, whereas Comparative Example 6 had a short service life and lacked practicality. Understand.
[0061]
As described above in detail, it has been clarified that the gradually soluble composition according to the present invention shows sufficient slow solubility under running water, and is highly practical. As shown in Table 5, it is possible to add a pH adjuster, a coloring agent, a bactericide, a disinfectant, a deodorant, an insoluble substance, and the like to the slowly soluble composition as necessary (implementation). Examples 20 to 25) In this case, it can be seen that sufficient slow solubility can be maintained as compared with Example 26 as a base.
[0062]
Further, as shown in Example 27 of Table 5, it is also possible to use an anionic surfactant as the surfactant for the purpose of improving the detergency.
[0063]
[Table 1]

[0064]
[Table 2]

[0065]
[Table 3]

[0066]
[Table 4]

[0067]
[Table 5]

[0068]
【The invention's effect】
As is clear from the above description, the slowly soluble composition according to the present invention comprises 1 to 5% by weight of carrageenan containing 50% by weight or more of copper-type carrageenan, and at least one or more nonionic surfactants 1 to 50. Since it contains water by weight and water, it is possible to maintain a slow solubility even under flowing water, and to provide a gel-like slowly dissolving composition excellent in mold release properties.
[0069]
In addition, if a chelating agent is blended into the composition having the above constitution, it is possible to easily adjust the dissolution rate while maintaining the shape retention without lowering the mold releasability of the gelled product, and it is possible to adjust the metal ion. The effect of improving the transparency of the gelled substance by trapping water and preventing the adhesion of water scale and the like is exhibited.

Claims (4)

A gel detergent composition which is gradually dissolved by contacting with water, wherein 1 to 5% by weight of carrageenan containing 50% by weight or more of copper-type carrageenan, and at least one or more nonionic surfactants 1 to 50 A slowly dissolving gel detergent composition comprising wt% and water. 2. The slowly soluble gel detergent composition according to claim 1, further comprising a chelating agent. It contains 0.5 to 35% by weight of a hydrophobic substance which is liquid at 20 ° C., and the total content of the hydrophobic substance and the nonionic surfactant is 50.5% by weight or less. 3. The slowly dissolving gel detergent composition according to claim 1, wherein the compounding ratio of the ionic surfactant is 0.3 or more. A gel composition which is gradually dissolved by contacting with water, wherein 1 to 5% by weight of carrageenan containing 50% by weight or more of copper-type carrageenan, 1 to 50% by weight of at least one or more anionic surfactants And a water-soluble gelling detergent composition containing water.