Tablet composition

Abstract

To provide a tablet composition that is superior in gradual dissolvability and heat resistance, has high hardness, and is capable of preventing attachment to textile products after laundering.SOLUTION: A tablet composition 10 comprises a component (A), a component (B), and a component (C), wherein the component (A) is an inorganic metal salt containing at least one of magnesium and aluminum, the component (B) is two or more lubricants, the component (C) is a saccharide, a content of the component (A) is 30 mass% or more relative to a total mass of the tablet composition, a mass ratio represented by the component (A) / the component (C) is 0.5 to 3.0, and a mass ratio represented by the component (B) / the component (C) is 0.2 to 1.5.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a tablet composition.

Background Art

[0002] So far, the slow dissolution technology has been mainly reported for use in toilet tanks, on-tanks, toilets, etc. For example, Patent Document 1 discloses a solid detergent for a flush toilet in which a solid deodorant insoluble or hardly soluble in water is dispersed in a slow dissolution agent.

[0003] In recent years, it has been considered to apply the slow dissolution technology to the field of washing fiber products such as clothing, and solid agents formed by melting and molding a high melting point nonionic surfactant or a higher alcohol have been proposed. For example, Patent Document 2 discloses a solid composition for washing treatment containing a water-soluble nonionic surfactant or polyethylene glycol or a copolymer of polyoxyethylene and polyoxypropylene having a melting point of 25 °C or higher, a water-insoluble component having a melting point of 50 °C or higher, and a functional component. This solid composition for washing treatment is manufactured by mixing those heated to a temperature equal to or higher than the melting point of each component, pouring the mixture into a mold, and cooling until it solidifies.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] The solid agent is, for example, housed in a washing ball, a washing net, etc., and is put into a washing machine together with the laundry of fiber products for use in washing. However, when using a washing machine with a drying function to perform the drying process, a part of the solid agent may dissolve, and there are problems with heat resistance. In addition, if the solid agent cracks during washing, small pieces may fly out from the washing ball or the like and adhere to the textile product. Even if it remains in the washing ball, the surface area becomes small, and the slow solubility may increase excessively. Therefore, the solid agent is required to be difficult to crack during washing. Furthermore, the solid agent is required to have a slow-dissolving component that is difficult to remain undissolved and difficult to adhere to the textile product.

[0006] An object of the present invention is to provide a tablet composition that is excellent in slow solubility and heat resistance, has high hardness, and can prevent adhesion to textile products after washing treatment.

Means for Solving the Problems

[0007] The present invention has the following aspects. [1] A tablet composition containing component (A), component (B), and component (C), The component (A) is an inorganic metal salt containing at least one of magnesium and aluminum, The component (B) is two or more kinds of lubricants, The component (C) is a saccharide, The content of the component (A) is 30% by mass or more based on the total mass of the tablet composition, The mass ratio represented by the component (A) / the component (C) is 0.5 to 3.0, The mass ratio represented by the component (B) / the component (C) is 0.2 to 1.5, the tablet composition. [2] The tablet composition according to [1], wherein the component (A) contains at least one selected from synthetic hydrotalcite, magnesium aluminometasilicate, magnesium aluminosilicate, and aluminum hydroxide. [3] The tablet composition according to [1] or [2], wherein the component (B) contains at least one selected from carnauba wax, rice wax, hardened oil, sucrose fatty acid ester, and sunflower wax. [4] The tablet composition according to any one of [1] to [3] above, wherein the component (C) contains one or more selected from mannitol, lactose, sucrose, and oligosaccharides. [5] The tablet composition according to any one of [1] to [4] above, which has a cylindrical portion with a diameter of 15.1 mm or more and a weight per preparation of 1.5 g or more. [6] The tablet composition according to any one of [1] to [5] above, which has a flat shape or a shape provided with a recess on the surface. [Effect of the Invention]

[0008] According to the present invention, it is possible to provide a tablet composition that is excellent in sustained solubility and heat resistance, has high hardness, and can prevent adhesion to a fiber product after a washing treatment. [Brief Description of the Drawings]

[0009]

Figure 1

Figure 2

Figure 3

[0010] Hereinafter, embodiments of the present invention will be specifically described, but the present invention is not limited to the following embodiments and can be variously modified and implemented within the scope of the gist. In this specification and the claims, the numerical range represented by "~" means a numerical range including the numerical values before and after ~ as the lower limit value and the upper limit value. For example, A~B is synonymous with A or more and B or less. The "tablet composition" refers to a solid preparation that retains a constant shape at room temperature (e.g., 25°C) and is less likely to undergo shape changes over time. Examples include tablets, gels, unit doses, etc. In particular, the tablet form is preferred. The "heat resistance" means that when the tablet composition is used for washing fiber products using a washing and drying machine, or for washing tableware and cooking utensils (hereinafter sometimes collectively referred to as "tableware") that are kitchen supplies using a dishwashing and drying machine, the tablet composition is resistant to elution even when exposed to the drying temperature of the washing and drying machine or the dishwashing and drying machine. The "slow solubility" means that when in contact with water, the entire tablet composition does not dissolve at once, but rather a part of the surface or the vicinity of the tablet composition dissolves. Specifically, when 12 g of the tablet composition is immersed in water at 15°C for 40 minutes and then the weight of the tablet composition is measured, the weight loss before and after immersion is preferably 0.2 g or more and less than 5.0 g, more preferably 0.5 g or more and 2.5 g or less, and even more preferably 0.8 g or more and less than 2.0 g. "Preventing adhesion to fiber products after washing" means preventing the tablet composition from cracking during washing and small pieces flying out from a washing ball or the like and adhering to the fiber products, and preventing the remaining slow-dissolving components from remaining dissolved during washing and adhering to the fiber products.

[0011] The tablet composition of the present invention is a solid preparation containing the following component (A), component (B), and component (C). The tablet composition may further contain, as necessary, components other than component (A), component (B), and component (C) (hereinafter also referred to as "optional components") within a range that does not impair the effects of the present invention, in addition to component (A), component (B), and component (C).

[0012] <(A) component> (A) component is an inorganic metal salt containing at least one of magnesium and aluminum (excluding the component (B-2) described later). (A) component is a slow-dissolving component. By containing the (A) component in the tablet composition, appropriate slow solubility can be achieved.

[0013] Examples of the (A) component include synthetic hydrotalcite, synthetic aluminum silicate, magnesium aluminometasilicate, magnesium aluminum silicate, aluminum hydroxide, magnesium hydroxide, magnesium aluminum hydroxide, magnesium silicate, magnesium carbonate, magnesium oxide, aluminum oxide, etc. Among these, from the viewpoints of improving the hardness of the tablet composition and preventing the adhesion of undissolved residues to the fiber products after the washing treatment, synthetic hydrotalcite, magnesium aluminometasilicate, magnesium aluminum silicate, and aluminum hydroxide are preferred, synthetic hydrotalcite, magnesium aluminometasilicate, and magnesium aluminum silicate are more preferred, and magnesium aluminometasilicate is even more preferred. The (A) component may be used alone or in combination of two or more. Note that aluminum hydroxide may be crystalline or amorphous. Amorphous aluminum hydroxide is also referred to as "dry aluminum hydroxide gel".

[0014] The content of the (A) component is 30% by mass or more based on the total mass of the tablet composition, preferably 30 - 70% by mass, more preferably 40 - 65% by mass, and even more preferably 50 - 60% by mass. If the content of the (A) component is at least the above lower limit, when the tablet composition is used in the washing treatment, the slow-dissolving component is less likely to remain undissolved, and the adhesion of undissolved residues to the fiber products after the washing treatment can be prevented. If the content of the (A) component is at most the above upper limit, the hardness of the tablet composition is further improved.

[0015] <(B) component> (B) component is two or more kinds of lubricants. (B) component is a slow-dissolving component. By containing the (B) component in the tablet composition, appropriate slow solubility can be achieved. Also, by using two or more lubricants, when the tablet composition is used in a washing process, the slow-dissolving component is less likely to remain undissolved, and the adhesion of the undissolved residue to the textile product after the washing process can be prevented. In the present invention, the "two or more lubricants" are two or more selected from any lubricants used in tablets. Specific examples of any lubricants used in tablets include leucine, isoleucine, L-valine, lecithin, enzymatically decomposed lecithin, hydrogenated oil, wax, stearic acid, polyoxyethylene sorbitan fatty acid esters, glycerin fatty acid esters, sucrose fatty acid esters and other oligosaccharide fatty acid esters, metal salts of fatty acids such as magnesium stearate and calcium stearate, talc, macrogol (polyethylene glycol), hydrous silicon dioxide, stearyl alcohol, sodium sulfate, etc., but are not limited thereto. The lubricants can be classified into the following "(B-1) component" and "(B-2) component" according to their physical properties, and it is more preferable to include one or more selected from the "(B-1) component" and one or more selected from the "(B-2) component".

[0016] Examples of the (B) component include oily lubricants having a melting point of less than 100 °C, aqueous lubricants having a melting point of less than 100 °C, inorganic metal salt-based lubricants having a melting point of 100 °C or higher, etc. Among these, oily lubricants having a melting point of less than 100 °C (hereinafter also referred to as the "(B-1) component") and inorganic metal salt-based lubricants having a melting point of 100 °C or higher (hereinafter also referred to as the "(B-2) component") are preferred. The melting point of the (B-1) component is preferably 60 to 95 °C, more preferably 70 to 90 °C. The melting point of the (B-2) component is preferably 120 to 2000 °C, more preferably 130 to 250 °C. The difference in melting point between the (B-1) component and the (B-2) component is preferably 20 °C or more, more preferably 30 °C or more, and even more preferably 40 °C or more. If the difference in melting point is at least the above lower limit value, the adhesion of the undissolved residue to the textile product after the washing process can be more effectively prevented. The melting point of the lubricant is determined by differential scanning calorimetry. Specifically, using a differential scanning calorimeter, the peak temperature of the melting peak when the temperature is raised from 0 °C to 250 °C at a heating rate of 2 °C / min is taken as the melting point of the lubricant. When using a commercially available product as the lubricant, if there is a catalog value, the catalog value may be adopted as the melting point of the lubricant as a simple measurement value.

[0017] (B-1) components include, for example, carnauba wax, rice wax, hydrogenated oil, sucrose fatty acid ester, sunflower wax, candelilla wax, rose wax, etc. Among these, from the perspective of melting point, carnauba wax, rice wax, hydrogenated oil, sucrose fatty acid ester, sunflower wax are preferred, and carnauba wax, rice wax, hydrogenated oil are more preferred. Among them, especially when manufacturing a tablet composition in the form of a tablet, carnauba wax is even more preferred from the perspective of higher compression moldability (tableting property). (B-1) component may be used alone or in combination of two or more. When combining two or more, it is preferably used at least with carnauba wax.

[0018] As carnauba wax, known ones can be used, for example, those obtained by purifying natural crude wax by methods such as degumming treatment, deacidification treatment, hydrogenation method, fractionation method, column treatment, etc., or unpurified ones. As rice wax, known ones can be used, for example, those separated when refining rice oil extracted from rice bran. As hydrogenated oil, known ones can be used, for example, hydrogenated castor oil, hydrogenated palm oil, hydrogenated rice oil, hydrogenated coconut oil, hydrogenated soybean oil, etc. As sucrose fatty acid ester, known ones can be used, for example, sucrose oleate, sucrose caprylate, sucrose caprate, sucrose laurate, sucrose stearate, sucrose palmitate, sucrose myristate, etc. As the sunflower wax, a known one can be used, for example, one obtained from sunflower seeds.

[0019] Examples of the component (B-2) include magnesium stearate, calcium stearate, sodium stearyl fumarate, light anhydrous silicic acid, hydrous silicon dioxide, talc, sodium lauryl sulfate, and the like. Among these, from the viewpoint of further enhancing the tableting property, magnesium stearate, calcium stearate, sodium stearyl fumarate, and light anhydrous silicic acid are preferable, magnesium stearate and calcium stearate are more preferable, and magnesium stearate is even more preferable. The component (B-2) may be used alone or in combination of two or more.

[0020] As the component (B), from the viewpoint of further improving the hardness of the tablet composition, it is preferable to contain one or more selected from the component (B-1), and it is more preferable to contain one or more selected from carnauba wax, rice wax, hydrogenated oil, sucrose fatty acid ester, and sunflower wax. As the component (B), two or more may be selected from the component (B-1) and used, two or more may be selected from the component (B-2) and used, or one or more may be selected from the component (B-1) and the component (B-2) and used. In particular, it is preferable to select and use two or more from the component (B-1), or to select and use one or more from the component (B-1) and the component (B-2) respectively. In particular, when producing a tablet composition in the form of a tablet, from the viewpoint of excellent balance between tableting property and sustained solubility, it is more preferable to select and use one or more from the component (B-1) and the component (B-2) respectively. When two or more are selected from the component (B-1) and used, it is preferable to use carnauba wax for at least one.

[0021] That is, the component (B) preferably contains a component (B-1) and a component (B-2), more preferably contains at least one selected from carnauba wax, rice wax, hydrogenated oil, sucrose fatty acid ester, and sunflower wax, and at least one selected from magnesium stearate, calcium stearate, sodium stearyl fumarate, and light anhydrous silicic acid, even more preferably contains at least one selected from carnauba wax, rice wax, hydrogenated oil, sucrose fatty acid ester, and sunflower wax and at least one of magnesium stearate and calcium stearate, particularly preferably contains at least one selected from carnauba wax, rice wax, and hydrogenated oil and magnesium stearate, and most preferably contains carnauba wax and magnesium stearate. As another aspect, the component (B) preferably contains carnauba wax and a component (B-1) other than carnauba wax, more preferably contains carnauba wax and at least one of rice wax and hydrogenated oil, and even more preferably contains carnauba wax and hydrogenated oil.

[0022] The content of the component (B) is preferably 5 to 30% by mass, more preferably 10 to 25% by mass, and even more preferably 10 to 20% by mass based on the total mass of the tablet composition. If the content of the component (B) is not less than the above lower limit value, the adhesion of the residue remaining dissolved to the textile product after the washing treatment can be more effectively prevented. If the content of the component (B) is not more than the above upper limit value, the slow solubility of the tablet composition is further improved.

[0023] When the component (B) contains the component (B-1), the content of the component (B-1) is preferably 5 to 30% by mass, more preferably 8 to 24% by mass, and even more preferably 10 to 18% by mass based on the total mass of the tablet composition. If the content of the component (B-1) is not less than the above lower limit value, the adhesion of the residue remaining dissolved to the textile product after the washing treatment can be more effectively prevented. If the content of the component (B-1) is not more than the above upper limit value, the slow solubility of the tablet composition is further improved.

[0024] When the (B) component contains the (B-2) component, the content of the (B-2) component is preferably 0.1 to 5% by mass, more preferably 0.2 to 4% by mass, and even more preferably 0.5 to 3% by mass based on the total mass of the tablet composition. If the content of the (B-2) component is at least the above lower limit, the tableting property is further improved, and the tablet composition in the form of tablets can be produced with higher productivity. If the content of the (B-2) component is at most the above upper limit, the sustained solubility of the tablet composition is further improved.

[0025] <(C) component> (C) component is a saccharide. (C) component is a sustained-release component. When the tablet composition contains the (C) component, appropriate sustained solubility can be achieved. In addition, the formability is improved.

[0026] Examples of the (C) component include monosaccharides such as xylose and galactose; disaccharides or higher polysaccharides such as granulated sugar, lactose, sucrose, maltose, fructose, glucose, trehalose, oligosaccharides, and dextrin; sugar alcohols such as mannitol, sorbitol, maltitol, palatinite, lactitol, erythritol, and xylitol. Among these, disaccharides or higher polysaccharides and sugar alcohols are preferred. Among them, mannitol, lactose, sucrose, and oligosaccharides are more preferred from the viewpoint of excellent balance between sustained solubility and formability, mannitol and lactose are even more preferred, and mannitol is particularly preferred. These (C) components may be granulated products or may not be granulated products. (C) component may be used alone or in combination of two or more.

[0027] The content of the (C) component is preferably 15 to 50% by mass, more preferably 20 to 45% by mass, and even more preferably 25 to 40% by mass based on the total mass of the tablet composition. If the content of the (C) component is at least the above lower limit, the sustained solubility of the tablet composition is further improved. If the content of the (C) component is at most the above upper limit, the adhesion of the residue after washing treatment to the textile product can be further prevented.

[0028] (A) component, the total content of (B) component and (C) component (hereinafter, also referred to as “(A + B + C) amount”) is preferably 60 to 100% by mass, more preferably 80 to 100% by mass, still more preferably 90 to 100% by mass, based on the total mass of the tablet composition. When the (A + B + C) amount is at least the above lower limit value, a tablet composition excellent in the balance between sustained solubility and prevention of adhesion of undissolved residues to textile products can be obtained.

[0029] (A) The mass ratio represented by component / (C) component (hereinafter, also referred to as “A / C ratio”) is 0.5 to 3.0, preferably 0.7 to 2.8, more preferably 1.0 to 2.5, still more preferably 1.5 to 2.0. When the A / C ratio is at least the above lower limit value, the hardness of the tablet composition increases. Therefore, when the tablet composition is used for a washing process or a dishwashing process, it is less likely to break. In particular, it is possible to prevent the tablet composition from breaking during washing and small pieces from jumping out of a washing ball or the like and adhering to textile products. When the A / C ratio is at most the above upper limit value, the tablet composition is moderately soluble when contacted with water, and the sustained solubility is improved.

[0030] (B) The mass ratio represented by component / (C) component (hereinafter, also referred to as “B / C ratio”) is 0.2 to 1.5, preferably 0.3 to 1.3, more preferably 0.4 to 1.0, still more preferably 0.4 to 0.7. When the B / C ratio is at least the above lower limit value, the tablet composition is less likely to dissolve excessively when contacted with water, and the sustained solubility can be maintained well. In addition, when the tablet composition is used for a washing process, the sustained-release component is less likely to remain undissolved, and adhesion of undissolved residues to textile products after the washing process can be prevented. When the B / C ratio is at most the above upper limit value, the tablet composition is moderately soluble when contacted with water, and the sustained solubility is improved.

[0031] The mass ratio represented by ((Component (A) + Component (B)) / Component (C)) (hereinafter also referred to as "(A + B) / C ratio") is preferably from 0.8 to 5.0, more preferably from 1.0 to 4.5, still more preferably from 1.5 to 3.5, and particularly preferably from 2.0 to 3.0. When the (A + B) / C ratio is within the above range, the tablet composition becomes excessively insoluble when contacted with water, and the sustained solubility can be maintained well. In particular, when the (A + B) / C ratio is at least the above lower limit value, when the tablet composition is used in a laundering process, the sustained-release component is less likely to remain undissolved, and the adhesion of the undissolved residue to the textile product after the laundering process can be further prevented.

[0032] <Optional component> The optional component is, for example, an antibacterial agent, an antifungal agent, a deodorant, a repellent, an ultraviolet absorber, a fluorescent agent, a migration inhibitor, a fiber surface modifier, a re-staining inhibitor, a metal ion scavenger (chelating agent), a fragrance, a silicone compound, a colorant, a thickener, a viscosity reducer, a solubilizer, an alkaline agent, an inorganic salt other than Component (A), an organic acid, an antioxidant, a preservative, a storage stability improver, a pearl agent, an extract, etc. These optional components are known substances, are easily available on the market, and can also be prepared. The optional component may be used alone or in combination of two or more. The content of the optional component is not particularly limited as long as the blending purpose can be achieved. For example, it is preferably less than 20% by mass, more preferably less than 10% by mass, based on the total mass of the tablet composition. Note that the total amount of all components constituting the tablet composition is 100% by mass and does not exceed 100% by mass.

[0033] Examples of the antibacterial agent include alkyltrimethylammonium salts having 12 to 16 carbon atoms (trade names such as "Lipocard C12-37W", "Lipocard C50", "Lipocard C16Cl salt", "Lipocard C16MS salt" manufactured by Lion Specialty Chemicals Co., Ltd.), dialkyldimethylammonium salts (trade names such as "Lipocard 210-80E" manufactured by Lion Specialty Chemicals Co., Ltd., "Carboquat MW50" manufactured by Lonza Co., Ltd., etc.), dialkylmethylpolyammonium propionate (trade name such as "Bardap 26" manufactured by Lonza Co., Ltd., etc.), dichlorosan (trade name such as "Chinosan HP100" manufactured by BASF), triclosan, benzalkonium chloride (trade names such as "Barquat MS100", "Barquat MB80" manufactured by Lonza Co., Ltd., etc.), benzethonium chloride, zinc bis-(2-pyridylthio-1-oxide), 8-hydroxyquinoline, biguanide compounds (trade name such as "Proxel IB" manufactured by Lonza Co., Ltd., etc.), chlorhexidine hydrochloride, polylysine, and the like. The content of the antibacterial agent is not particularly limited as long as the blending purpose can be achieved, but is preferably less than 10% by mass based on the total mass of the tablet composition.

[0034] Examples of the antifungal agent include iodothiolone DP95 (chemical name: diiodomethyl-p-tolyl sulfone), propiolyl butylcarbamate, and the like. Examples of the deodorant include methylglycine diacetic acid (MGDA), aspartic acid diacetic acid (ASDA), isoserine diacetic acid (ISDA), β-alanine diacetic acid (ADAA), serine diacetic acid (SDA), glutamic acid diacetic acid (GLDA), iminodiacetic acid (IDS), hydroxyiminodiacetic acid (HIDS), or salts thereof, zinc ricinoleate, bentonite, dextrin, and the like. Examples of the repellent include known components used as known pest repellents, such as N,N-diethyl-3-methylbenzamide (DEET), ikaridin, and the like. Examples of the ultraviolet absorber include 4-methoxy-4'-tert-butyldibenzoylmethane (trade name "Parsol 1789" manufactured by DSM Nutrition Japan Co., Ltd., etc.).

[0035] Examples of the fluorescent agent include 4,4-bis(2-sulfostyryl)biphenyl disodium (trade name "Chinopearl CBS-X" manufactured by BASF, etc.). Examples of the substrate for preventing migration include polyvinylpyrrolidone, etc. Examples of the anti-fading agent include 1,4-bis(3-aminopropyl)piperazine, etc. Examples of the fiber surface modifier include enzymes such as cellulase, amylase, protease, lipase, and keratinase, etc. Examples of the anti-recontamination agent include a water-soluble polymer having at least one repeating unit selected from the group consisting of an alkylene terephthalate unit and an alkylene isophthalate unit, and at least one repeating unit selected from the group consisting of an oxyalkylene unit and a polyoxyalkylene unit. Specifically, trade name "TexCare SRN-100" (manufactured by Clariant, weight average molecular weight 2000 - 3000), trade name "TexCare SRN-300" (manufactured by Clariant, weight average molecular weight 7000), trade name "Repel-O-Tex Crystal" (manufactured by Rhodia), trade name "Repel-O-Tex QC" (manufactured by Rhodia), etc. Other anti-recontamination agents include alkylene oxide adducts of polyalkyleneimine and alkylene oxide adducts of polyalkyleneamine. Specifically, trade name "Sokalan HP20" (manufactured by BASF), etc. Examples of the metal ion scavenger (chelating agent) include malonic acid, succinic acid, malic acid, diglycolic acid, tartaric acid, citric acid, fumaric acid, etc.

[0036] As the fragrance, those known to be blendable into the treatment agent composition for fiber products can be used without particular limitation. For example, the list of usable fragrance raw materials is described in various documents such as "Perfume and Flavor Chemicals", Vol. I and II, Steffen Arctander, Allured Pub. Co. (1994), "Synthetic Perfumes - Chemistry and Product Knowledge", by Motokazu Indoh, Chemical Industry Daily Co., Ltd. (1996), "Perfume and Flavor Materials of Natural Origin", Steffen Arctander, Allured Pub. Co. (1994), "Encyclopedia of Scents", edited by the Japan Flavor Association, Asakura Shoten (1989), "Perfumery Material Performance V.3.3", Boelens Aroma Chemical Information Service (1996), "Flower oils and Floral Compounds In Perfumery", Danute Lajaujis Anonis, Allured Pub. Co. (1993), etc. The blending amount of the fragrance is not particularly limited as long as it can achieve the blending purpose, but it is preferably less than 10% by mass based on the total mass of the tablet composition.

[0037] The molecular structure of the silicone compound may be linear, branched, or crosslinked. Also, the silicone compound may be a modified silicone compound, and the modified silicone compound may be modified with one kind of organic functional group or may be modified with two or more kinds of organic functional groups. The silicone compound can be used in the state of an oil, and can also be used in the state of an emulsion dispersed by an arbitrary emulsifier. Specific examples of silicone include dimethyl silicone, polyether-modified silicone, methylphenyl silicone, alkyl-modified silicone, higher fatty acid-modified silicone, methylhydrogen silicone, fluorine-modified silicone, epoxy-modified silicone, carboxy-modified silicone, carbinol-modified silicone, amino-modified silicone, and the like. For example, polyoxyethylene-modified silicone (trade name "SH3775M" etc. manufactured by DuPont - Toray Specialty Materials Co., Ltd.) and the like can be mentioned. The silicone content is not particularly limited as long as the blending purpose can be achieved, but it is preferably less than 10% by mass based on the total mass of the tablet composition.

[0038] Examples of the colorant include general-purpose dyes and pigments such as Acid Red 138, Polar Red RLS, Acid Yellow 203, Acid Blue 9, Blue No. 1, Blue No. 205, Green No. 3, Red No. 106, Yellow No. 203, Turquoise P-GR (all are trade names), etc. The content of the colorant is not particularly limited as long as the blending purpose can be achieved, but it is preferably 0.00005 - 0.005% by mass based on the total mass of the tablet composition.

[0039] Examples of the organic acid include succinic acid, fumaric acid, malic acid, adipic acid, tartaric acid, benzoic acid, citric acid, pyrrolidonecarboxylic acid, salicylic acid, maleic acid, phthalic acid, glutaric acid, oxalic acid, and the like.

[0040] <Shape> The shape of the tablet composition is not particularly limited, and examples thereof include a shape having a cylindrical part, a shape having a prismatic part, and the like.

[0041] When the tablet composition has a shape having a cylindrical part, the tablet composition may be a shape consisting only of the cylindrical part, or may be a shape having a cylindrical part and a bulging part that bulges above and below the cylindrical part.

[0042] When the tablet composition has a shape having a cylindrical portion and a bulging portion, examples of such a tablet composition include Sumitomo square tablets, Sumitomo round tablets, R tablets (standard R tablets), two-step R tablets, etc. Among these, Sumitomo square tablets and R tablets are preferred. The bulging portions of these tablets may be vertically asymmetric, but are preferably vertically symmetric.

[0043] FIG. 1 is a side view showing an example of a tablet composition 10 having the shape of a Sumitomo square tablet. The tablet composition 10 of this example is a biconvex tablet having a cylindrical portion 11, a first bulging portion 12, and a second bulging portion 13. The diameter of the cylindrical portion 11, that is, the diameter of the top surface and the bottom surface of the cylindrical portion 11 is preferably 15.1 mm or more, more preferably 20 to 50 mm, and even more preferably 25 to 35 mm. If the diameter of the cylindrical portion 11 is at least the above lower limit value, accidental ingestion can be further prevented. If the diameter of the cylindrical portion 11 is at most the above upper limit value, it can be gradually dissolved uniformly until the end. The first bulging portion 12 rises linearly from near the periphery of one end face of the cylindrical portion 11 toward the center of the one end face at a predetermined rising angle θ, and any region including the zenith 12A is flat. The second bulging portion 13 rises linearly from near the periphery of the other end face of the cylindrical portion 11 toward the center of the other end face at a predetermined rising angle θ, and any region including the zenith 13A is flat. The rising angle θ in the first bulging portion 12 and the rising angle θ in the second bulging portion 13 may be the same or different, and are preferably the same from the viewpoint of tablet strength. The thickness H1 of the tablet composition 10, that is, the sum of the thickness of the cylindrical portion 11 and the maximum thicknesses of the first bulging portion 12 and the second bulging portion 13 is preferably 5 to 20 mm, more preferably 8 to 17 mm, and even more preferably 12 to 16 mm. The tablet composition 10 shown in FIG. 1 has a horizontally annular horizontal surface (land portion 14) on the outer periphery of the first bulging portion 12 and a horizontally annular horizontal surface (land portion 15) on the outer periphery of the second bulging portion 13. However, for example, it may not have a land portion, and the peripheral portion of the tablet and the bulging rising portion may be in contact with each other.

[0044] FIG. 2 is a side view showing an example of a tablet composition 20 having the shape of an R tablet. The tablet composition 20 of this example has a cylindrical portion 21, a first bulging portion 22, and a second bulging portion 23, and is a biconvex tablet in which the radius of curvature R of the curve on the surface of each of the first bulging portion 22 and the second bulging portion 23 is constant regardless of the position on the surface of the bulging portion. The diameter of the cylindrical portion 21, that is, the diameters of the top surface and the bottom surface of the cylindrical portion 21 are the same as the diameter of the cylindrical portion 11 of the tablet composition 10 shown in FIG. 1. The first bulging portion 22 bulges from near the periphery of one end face of the cylindrical portion 21 toward the center of the one end face. The second bulging portion 23 bulges from near the periphery of the other end face of the cylindrical portion 21 toward the center of the other end face. Here, the "radius of curvature of the curve on the surface of the first bulging portion 22" refers to the radius of the circle when the curve drawn by the surface of the first bulging portion 22 is regarded as a part of a circle in the cross section obtained by cutting perpendicularly to the end face of the cylindrical portion 21 so as to pass through the zenith 22A. The "radius of curvature of the curve on the surface of the second bulging portion 23" refers to the radius of the circle when the curve drawn by the surface of the second bulging portion 23 is regarded as a part of a circle in the cross section obtained by cutting perpendicularly to the end face of the cylindrical portion 21 so as to pass through the zenith 23A. The zenith 22A in the first bulging portion 22 is the point located at the highest position with respect to one end face. The zenith 23A in the second bulging portion 23 is the point located at the lowest position with respect to the other end face. The radius of curvature R of the first bulging portion 22 and the radius of curvature R of the second bulging portion 23 may be the same or different, and from the viewpoint of tablet strength, it is preferably the same. The thickness H2 of the tablet composition 20, that is, the sum of the thickness of the cylindrical portion 21 and the maximum thicknesses of the first bulging portion 22 and the second bulging portion 23, is preferably 5 to 20 mm, more preferably 8 to 17 mm, and even more preferably 12 to 16 mm. The tablet composition 20 shown in FIG. 2 has a horizontally annular horizontal surface (land portion 24) in a plan view on the outer periphery of the first bulging portion 22 and a horizontally annular horizontal surface (land portion 25) in a plan view on the outer periphery of the second bulging portion 23. However, for example, it may not have a land portion, and the peripheral portion of the tablet and the bulging rising portion may be in contact with each other.

[0045] When the tablet composition has a shape consisting only of a cylindrical portion, the diameter of the cylindrical portion is the same as the diameter of the cylindrical portion 11 of the tablet composition 10 shown in FIG. 1. Also, the height of the cylindrical portion, that is, the thickness of the tablet composition consisting only of the cylindrical portion, is preferably 5 to 20 mm, more preferably 8 to 17 mm, and even more preferably 12 to 16 mm. The tablet composition consisting only of the cylindrical portion may be flat. In the case of a flat shape, the aspect ratio (diameter of the cylindrical portion / height H of the cylindrical portion) is preferably 1 to 10, more preferably 1.2 to 5, and even more preferably 1.5 to 2.5.

[0046] Also, when the tablet composition has a shape consisting only of a cylindrical portion, a concave portion may be provided on at least one of the surfaces of the cylindrical portion, specifically, the top surface and the bottom surface of the cylindrical portion. FIG. 3(a) is a perspective view showing an example of a tablet composition 30 having a shape with a concave portion provided on the surface, and FIG. 3(b) is a cross-sectional view of the tablet composition 30 taken along the line A-A'. The tablet composition 30 shown in FIG. 3 is composed only of the cylindrical portion 31, and a concave portion 32 is provided at the center of the top surface 31a of the cylindrical portion 31. Also, the shape of the cross-section along the thickness H3 direction of the tablet composition 30 is a quadrilateral, and its four corners are rounded off. Note that in the tablet composition 30 of the illustrated example, the top surface and the bottom surface are flat, but at least one of the top surface and the bottom surface may be a curved surface.

[0047] The diameter of the cylindrical portion 31, that is, the diameter of the top surface 31a and the bottom surface 31b, is preferably 15.1 mm or more, more preferably 20 to 50 mm, and even more preferably 25 to 35 mm. If the diameter of the top surface 31a and the bottom surface 31b is equal to or greater than the above lower limit value, accidental ingestion can be more effectively prevented. If the diameter of the top surface 31a and the bottom surface 31b is equal to or less than the above upper limit value, it can be gradually dissolved uniformly until the end.

[0048] The thickness H3 of the tablet composition 30, that is, the thickness of the cylindrical portion 31, is not particularly limited, but for example, 5 to 20 mm is preferable, 8 to 17 mm is more preferable, and 12 to 16 mm is even more preferable.

[0049] The depth h of the concave portion 32 is preferably 20 to 40% of the thickness H3 of the tablet composition 30, and more preferably 25 to 35%. If the depth h of the concave portion 32 is equal to or greater than the above lower limit value, the hardness of the tablet composition 30 is further increased. If the depth h of the concave portion 32 is equal to or less than the above upper limit value, it can be easily tabletted and formed. The diameter d of the opening of the concave portion 32 is preferably 5 to 25 mm, more preferably 7 to 20 mm, and even more preferably 15 to 20 mm. In addition, although the shape of the opening of the concave portion 32 in the illustrated example is circular, the shape of the opening of the concave portion 32 is not particularly limited, and it may be polygonal or elliptical. The volume of the concave portion 32 is preferably 5 to 25% of the volume of the tablet composition 30, and more preferably 10 to 20%. If the volume of the concave portion 32 is equal to or greater than the above lower limit value, the sustained dissolution property of the tablet composition 30 is further improved. If the volume of the concave portion 32 is equal to or less than the above upper limit value, the hardness of the tablet composition 30 is further increased. In addition, the concave portion 32 may be formed in a spiral shape toward its center.

[0050] When the tablet composition has a shape with a prismatic portion, the tablet composition may have a shape consisting only of the prismatic portion, or may have a shape with a prismatic portion and a bulging portion that bulges above and below the prismatic portion. Further, when the tablet composition has a shape consisting only of the prismatic portion, a concave portion may be provided on the surface of the prismatic portion, specifically, at least one of the top surface and the bottom surface of the prismatic portion.

[0051] Examples of the tablet composition having a prismatic part include a tablet composition having a cylindrical part, in which the shape of the cylindrical part is changed to a prismatic part. The diameter of the circumscribed circle of the top or bottom surface of the prismatic part is preferably 15.1 mm or more, more preferably 20 to 50 mm, and even more preferably 25 to 35 mm. If the diameter of the circumscribed circle of the top or bottom surface of the prismatic part is equal to or greater than the above lower limit value, accidental ingestion can be further prevented. If the diameter of the circumscribed circle of the top or bottom surface of the prismatic part is equal to or less than the above upper limit value, it can be gradually dissolved uniformly until the end. The shape of the top or bottom surface of the prismatic part is not particularly limited as long as it is a polygon, and examples thereof include a triangle, a quadrilateral, a pentagon, a hexagon, a heptagon, an octagon, a star-shaped polygon, and the like.

[0052] As the shape of the tablet composition, a shape having a cylindrical part is preferable. From the viewpoint of further increasing the hardness of the tablet composition, a shape having a cylindrical part and a bulging part, or a shape in which at least one of the top and bottom surfaces of the cylindrical part is provided with a concave part is more preferable, a shape of a sumi corner flat tablet, or a shape in which at least one of the top and bottom surfaces of the cylindrical part is provided with a concave part is even more preferable, and a shape in which at least one of the top and bottom surfaces of the cylindrical part is provided with a concave part is particularly preferable.

[0053] <Weight> The weight per preparation of the tablet composition is preferably 1.5 g or more, more preferably 2 to 20 g, and even more preferably 10 to 15 g. If the weight per preparation is equal to or greater than the above lower limit value, accidental ingestion can be further prevented. If the weight per preparation is equal to or less than the above upper limit value, the hardness of the tablet composition is further increased.

[0054] <Manufacturing method> The tablet composition can be obtained, for example, by tableting a mixture obtained by mixing a component (A), a component (B), a component (C), and optional components as necessary. Examples of the tableting method include a method of tableting (compression molding) using a tableting machine having a mortar and a pestle. The tableting conditions are not particularly limited, but the tableting pressure is preferably 20 to 100 kN, more preferably 40 to 60 kN.

[0055] <Function and effect> The tablet composition of the present invention described above contains the components (A), (B) and (C) which are the above-described sustained-release components in a specific mass ratio, so it has excellent sustained solubility and high hardness. Moreover, since it is in tablet form, it also has excellent heat resistance. In particular, the tablet composition in the form of a tablet obtained by compression molding each component has even more excellent heat resistance. In addition, when the tablet composition of the present invention is used for a washing process, adhesion to a fiber product after the washing process can be prevented.

[0056] <Use> The tablet composition of the present invention can be used together with an object to be washed, which is a cleaning target, during a washing process by a washing machine or a dishwashing process by a dishwasher. That is, the tablet composition is preferably used for a washing process or a dishwashing process. When washing and drying an object to be washed using a washing machine (washing and drying machine) or a dishwasher (dishwashing and drying machine) equipped with a drying function, the temperature inside the washing and drying machine or the dishwasher becomes high (for example, about 30 to 90 °C) during the drying process. Therefore, when the tablet composition is used in a washing and drying machine or a dishwasher, the tablet composition will be exposed to high temperatures. However, the tablet composition of the present invention has excellent heat resistance and is difficult to elute even when exposed to high temperatures. Therefore, the tablet composition of the present invention is particularly suitable for use in a washing process using a washing and drying machine or a dishwashing process using a dishwashing and drying machine. In the case of a washing process, examples of the object to be washed include fiber products such as clothing (garments), dishcloths, towels, sheets, curtains, etc. The material of the fiber product is not particularly limited and may be any of natural fibers such as cotton, silk, and wool, and chemical fibers such as polyester and polyamide. In the case of a dishwashing process, examples of the object to be washed include utensils directly used for meals such as plates, chopsticks, spoons; cooking utensils such as pots and kitchen knives, etc. In this specification, these are also collectively referred to as "tableware".

[0057] Also, when the tablet composition of the present invention consists only of component (A), component (B), and component (C), the tablet composition of the present invention may be used as a base. In this specification, a tablet composition consisting only of component (A), component (B), and component (C) is also particularly referred to as a "tablet base composition". If a functional component is blended into the tablet base composition, each time it comes into contact with water, a part of the surface of the tablet composition or its vicinity dissolves, and the functional component is gradually released together with component (A), component (B), and component (C) which are the sustained-release components contained in the tablet composition, and the effect of the functional component can be continuously exerted. Examples of the functional component include the optional components described above. For example, if an antibacterial agent, an antifungal agent, a deodorant, etc. are blended into the tablet base composition, these functions are imparted not only to the object to be washed but also to the interior of a washing machine or a dishwasher.

[0058] <Usage method> The tablet composition of the present invention can be used as it is or after being housed in a container, tool, or bag. For example, when the tablet composition of the present invention is used for a washing process, the tablet composition can be placed inside a commercially available washing product such as a washing ball or a washing net, and these can be put into a washing machine together with the object to be washed for use in washing. As the washing ball, for example, the outer container part of the product named "Eco Washing Ball" manufactured by Ihara Kikuhan Co., Ltd. from which the tourmaline inside has been removed can be used. As the washing net, for example, the product named "Umi. Washing Net" manufactured by Diyouth can be used. When all or almost all of the tablet composition of the present invention has dissolved during washing in these washing products, they can be reused by separately housing and using the tablet composition of the present invention. Washing supplies such as a washing ball or a washing net containing the tablet composition of the present invention may be placed in a washing machine in advance, or may be placed on top of the object to be washed after the object to be washed is placed. They may be placed in the washing machine during all steps of water injection, washing, drainage, rinsing, dehydration, and (depending on the washing machine) drying. After the washing is completed, when taking out the object to be washed from the washing machine, washing supplies such as a washing ball or a washing net containing the tablet composition of the present invention may be left in the washing machine as they are and can be used as they are during the next washing. When the tablet composition of the present invention is used for dishwashing, it can be used in the same manner as when used for washing.

Examples

[0059] Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited by the following description. In the following examples, “%” represents “% by mass” unless otherwise specified.

[0060] “Raw materials used” As component (A), the following compounds were used. · A-1: Magnesium aluminometasilicate (manufactured by Fuji Chemical Industry Co., Ltd.). · A-2: Magnesium aluminosilicate (manufactured by Fuji Chemical Industry Co., Ltd.). · A-3: Synthetic hydrotalcite (manufactured by Kyowa Chemical Industry Co., Ltd.). · A-4: Dried aluminum hydroxide gel (manufactured by Niko Pharmaceutical Co., Ltd.).

[0061] As component (B), the following compounds were used. · B-1-1: Carnauba wax (manufactured by Toa Gosei Co., Ltd., melting point 85 ° C, oily lubricant). · B-1-2: Hydrogenated oil (castor oil manufactured by Freund Industry Co., Ltd., melting point 85 ° C, oily lubricant). · B-1-3: Rice wax (manufactured by Toa Gosei Co., Ltd., melting point 80 ° C, oily lubricant). · B-1-4: Sucrose fatty acid ester (manufactured by Mitsubishi Chemical Corporation, melting point 80 ° C, oily lubricant). ·B-1-5: Sunflower wax (manufactured by Toa Gosei Co., Ltd., melting point 78°C, oil-based lubricant). ·B-2-1: Magnesium stearate (manufactured by Taihei Chemical Industry Co., Ltd., melting point 140°C, inorganic metal salt-based lubricant). ·B-2-2: Calcium stearate (manufactured by Taihei Chemical Industry Co., Ltd., melting point 147°C, inorganic metal salt-based lubricant).

[0062] (C) The following compounds were used as components. ·C-1: Mannitol (manufactured by Freund Industry Co., Ltd.). ·C-2: Lactose (manufactured by Freund Industry Co., Ltd.). ·C-3: Sucrose (manufactured by Fujifilm Wako Pure Chemical Corporation). ·C-4: Oligosaccharide (manufactured by Fujifilm Wako Pure Chemical Corporation).

[0063] "Measurement and Evaluation" <Evaluation of Heat Resistance> Two tablets of the tablet composition were placed in a protective container (the outer container part of the product named "Eco Washing Ball" manufactured by Ihara Kikuhan Co., Ltd. with the tourmaline inside removed). A protective container containing the tablet composition was placed in a drum-type washing and drying machine (manufactured by Panasonic Holdings Corporation, product name "NA-VX7600L"), and washed and dried for about 4 hours on the standard course (from water injection to drying, water temperature 15°C, maximum temperature inside the dryer 80°C). The appearance of the dried tablet composition was observed visually, and the heat resistance was evaluated based on the following evaluation criteria. ◎, 〇, and △ were considered qualified. (Evaluation Criteria) ◎: Did not melt at all and was not sticky. 〇: Slightly melted and sticky, but at an acceptable level. △: Melted about half and was sticky. ×: Almost completely melted and was very sticky.

[0064] <Evaluation of Slow Solubility> Two tablets of the tablet composition were placed in a protective container (the outer container part of the product named "Eco Washing Ball" manufactured by Ihara Kikuhan Co., Ltd. with the tourmaline inside removed). A protective container containing a tablet composition was placed in a drum - type washing and drying machine (manufactured by Panasonic Holdings Corporation, product name "NA - VX7600L"), and it was washed for about 40 minutes in the standard course (from water injection to dehydration, water temperature 15°C). The weight change of the tablet composition before and after washing (weight before washing - weight after washing) was defined as the gradual dissolution amount. The same evaluation was carried out 5 times in total, and the average gradual dissolution amount was calculated from the 5 gradual dissolution amounts, and the heat resistance was evaluated based on the following evaluation criteria. ◎, 〇, and △ were regarded as passing. (Evaluation Criteria) ◎: The average gradual dissolution amount is 0.8 g or more and less than 2.0 g. 〇: The average gradual dissolution amount is 0.5 g or more and less than 0.8 g, or 2.0 g or more and 2.5 g or less. △: The average gradual dissolution amount is 0.2 g or more and less than 0.5 g, or more than 2.5 g and less than 5.0 g. ×: The average gradual dissolution amount is less than 0.2 g, or 5.0 g or more.

[0065] <Measurement of Hardness> Using a compression strength measuring instrument (manufactured by Imada Co., Ltd., product name "Digital Force Gauge DST - 200N"), the maximum maximum pressure at which one tablet of the tablet composition breaks was measured, and the hardness was evaluated based on the following evaluation criteria. ◎, 〇, and △ were regarded as passing. ◎: The maximum pressure is 50 kgf or more. 〇: The maximum pressure is 40 kgf or more and less than 50 kgf. △: The maximum pressure is 30 kgf or more and less than 40 kgf. ×: The maximum pressure is less than 30 kgf.

[0066] <Evaluation of Adhesiveness> Two tablets of the tablet composition were placed in a protective container (the outer container part of the product named "Eco Washing Ball" manufactured by Ihara Enterprise Sales Co., Ltd. with the tourmaline inside removed). In a vertical washing and drying machine (manufactured by Toshiba Corporation, product name "AW - 8V2"), a protective container containing the tablet composition and 4 kg of black clothing were placed, and after washing for about 40 minutes in the standard course (from water injection to dehydration, water temperature 15°C), the amount of the base (powder) adhering to the clothing was visually observed, and the adhesiveness to textile products was evaluated based on the following evaluation criteria. ◎, 〇, and △ were regarded as passing. (Evaluation Criteria) ◎: No adhesion of the base agent. 〇: Almost no adhesion of the base agent. △: Slight adhesion of the base agent is observed, but it is at an acceptable level. ×: Obvious adhesion of the base agent.

[0067] 「Example 1」 Based on the formulation composition shown in Table 1, the powders of each component were weighed into a plastic bag so that the total was 200 g, and the plastic bag was shaken by hand 100 times to mix the powders, obtaining a powder mixture. The obtained powder mixture was tableted using a single-punch tablet machine (manufactured by Fuji Pharmaceutical Machinery Co., Ltd., product name "FY-TPF-100S") with a flat Sumitomo angle pestle having a cylindrical part diameter of 30 mm at a tableting pressure of 50 kN, obtaining a tablet composition having the shape of a Sumitomo angle flat tablet as shown in Figure 1. The weight per preparation was 12 g. The thickness of the tablet composition was 15 mm, and the rising angle θ of the bulging part was 30°. For the obtained tablet composition, the hardness was measured, and the heat resistance, sustained solubility, and adhesiveness were evaluated. The results are shown in Table 1.

[0068] 「Examples 2 to 14」 Tablet compositions were produced in the same manner as in Example 1, except that the formulation composition of each component was changed to the values shown in Tables 1 and 2, and various measurements and evaluations were performed. The results are shown in Tables 1 and 2.

[0069] 「Example 15」 A powder mixture was obtained in the same manner as in Example 1, except that the formulation composition of each component was changed to the values shown in Table 2. The obtained powder mixture was tabletted using a single-punch tableting machine (manufactured by Fuji Pharmaceutical Machinery Co., Ltd., product name "FY-TPF-100S") with a punch having a cylindrical part with a diameter of 30 mm and a convex part corresponding to the concave part at a tableting pressure of 50 kN to obtain a tablet composition having a shape consisting only of the cylindrical part 31 as shown in Fig. 3 and a concave part 32 provided at the center of the top surface 31a. The weight per formulation was 12 g. The thickness of the tablet composition was 15 mm, the depth of the concave part was 4.5 mm (corresponding to 30% of the thickness of the tablet composition), the diameter of the opening of the concave part was 17 mm, and the volume of the concave part was 16% of the volume of the tablet composition. For the obtained tablet composition, the hardness was measured, and the heat resistance, sustained solubility, and adhesiveness were evaluated. The results are shown in Table 2.

[0070] "Example 16" A powder mixture was obtained in the same manner as in Example 1 except that the blending composition of each component was changed to the values shown in Table 2. The obtained powder mixture was tabletted using a single-punch tableting machine (manufactured by Fuji Pharmaceutical Machinery Co., Ltd., product name "FY-TPF-100S") with a punch having an R shape with a diameter of 30 mm and a radius of curvature of mm at a tableting pressure of 50 kN to obtain a tablet composition having an R tablet shape as shown in Fig. 2. The weight per formulation was 12 g. The thickness of the tablet composition was 15 mm. For the obtained tablet composition, the hardness was measured, and the heat resistance, sustained solubility, and adhesiveness were evaluated. The results are shown in Table 2.

[0071] "Comparative Examples 1 to 8" Tablet compositions were produced in the same manner as in Example 1 except that the blending composition of each component was changed to the values shown in Table 3, and various measurements and evaluations were performed. The results are shown in Table 3.

[0072]

Table 1

[0073]

Table 2

[0074] [Table 3]

[0075] In Tables 1 to 3, the blending amount (mass %) of each component is all the ratio to the total mass per preparation of the tablet composition, and unless otherwise specified, the values are shown in terms of pure components. In addition, a blank in the blending amount means that the component is not blended (blending amount 0 mass %). Also, in Tables 1 to 3, the "A / C ratio" is the mass ratio of component (A) to component (C). The "B / C ratio" is the mass ratio of component (B) to component (C). The "(A + B) / C ratio" is the mass ratio of the total content of component (A) and component (B) to component (C).

[0076] As is clear from Tables 1 and 2, the tablet compositions obtained in each example had high hardness, were excellent in sustained solubility and heat resistance, and could prevent adhesion to fiber products after the washing treatment. On the other hand, as is clear from Table 3, the tablet composition obtained in Comparative Example 1 in which the content of component (A) was less than 30 mass%, the A / C ratio was less than 0.5, and the B / C ratio was less than 0.2 had low hardness, was inferior in sustained solubility, and the base easily adhered to fiber products. The tablet composition obtained in Comparative Example 2 in which the A / C ratio was more than 3.0 and the B / C ratio was more than 1.5 was inferior in sustained solubility. The tablet composition obtained in Comparative Example 3 using one type of lubricant had the base easily adhering to fiber products. The tablet composition obtained in Comparative Example 4 in which the B / C ratio was more than 1.5 was inferior in sustained solubility. The tablet composition obtained in Comparative Example 5 in which the B / C ratio was less than 0.2 was inferior in sustained solubility and the base easily adhered to fiber products. The tablet composition obtained in Comparative Example 6 in which the content of component (A) was less than 30 mass% had the base easily adhering to fiber products. The tablet composition obtained in Comparative Example 7, in which the content of component (A) is less than 30% by mass and the A / C ratio is less than 0.5, had low hardness, and the base adhered easily to the fiber-like products. The tablet composition obtained in Comparative Example 8, in which the A / C ratio exceeds 3.0, was inferior in sustained solubility.

Explanation of Signs

[0077] 10 Tablet composition 11 Cylindrical part 12 First bulging part 12A Zenith 13 Second bulging part 13A Zenith 14 Land part 15 Land part 20 Tablet composition 21 Cylindrical part 22 First bulging part 22A Zenith 23 Second bulging part 23A Zenith 24 Land part 25 Land part 30 Tablet composition 31 Cylindrical part 31a Top surface 31b Bottom surface 32 Concave part

Claims

1. A tablet composition containing component (A), component (B), and component (C), wherein the component (A) is an inorganic metal salt containing at least one of magnesium and aluminum, the component (B) is two or more kinds of lubricants, the component (C) is a saccharide, the content of the component (A) is 30% by mass or more based on the total mass of the tablet composition, the mass ratio represented by the component (A) / the component (C) is 0.5 to 3.0, and the mass ratio represented by the component (B) / the component (C) is 0.2 to 1.

5. Tablet composition.

2. The tablet composition according to claim 1, wherein the component (A) contains at least one selected from synthetic hydrotalcite, magnesium aluminometasilicate, magnesium aluminosilicate, and aluminum hydroxide.

3. The tablet composition according to claim 1 or 2, wherein the component (B) contains at least one selected from carnauba wax, rice wax, hydrogenated oil, sucrose fatty acid ester, and sunflower wax.

4. The tablet composition according to claim 1 or 2, wherein the component (C) contains at least one selected from mannitol, lactose, sucrose, and oligosaccharide.

5. The tablet composition according to claim 1 or 2, having a cylindrical portion with a diameter of 15.1 mm or more and a weight per preparation of 1.5 g or more.

6. The tablet composition according to claim 1 or 2, which is in a flat shape or has a concave portion on the surface.

Images