Tablet composition

Abstract

To provide a tablet composition excellent in slow solubility and reduced in adhesion to an object to be washed.SOLUTION: The composition comprises (A) at least one selected from the group consisting of calcium sulfate, calcium carbonate, calcium hydrogenphosphate and aluminum silicate, and (B) at least two selected from the group consisting of (B1) ingredient and (B2) ingredient, wherein the (B1) ingredient is at least one selected from the group consisting of carnauba wax, rice bran wax, hydrogenated oil, sucrose fatty ester, sunflower wax, candelilla wax and rose wax, and the (B2) ingredient is at least one selected from the group consisting of magnesium stearate, calcium stearate, sodium stearyl fumarate and sodium lauryl sulfate.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to tablet compositions. [Background technology]

[0002] BACKGROUND ART Slowly dissolving tablet compositions have conventionally been used in in-tank, on-tank or toilet bowl cleaner compositions, drain cleaner compositions, denture cleaner compositions and the like. For example, Patent Document 1 discloses a slime remover for drains, which is characterized by containing one or more antibacterial compounds selected from ε-polylysine, triclosan, dichlosan, undecylenic acid, zinc undecylenate, phenoxyethanol, dimethyldimethylolhydantoin, and zinc gluconate. The invention described in Patent Document 1 involves mixing an antibacterial compound with an inorganic powder such as calcium sulfate, and compressing the mixture into tablets to form a tablet composition. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-41293 Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, the application of slow dissolution technology to the field of washing textile products such as clothing has been considered. The tablet composition is placed in, for example, a laundry ball or laundry net and then placed in a washing machine together with the textile products to be washed. However, when the technology described in Patent Document 1 is used in a tablet composition for a washing machine, the inorganic powder may adhere to the items being washed. In addition, when the technology described in Patent Document 1 is used in a tablet composition for a washing machine, the tablet composition may disintegrate into small pieces during washing, and these small pieces may adhere to the items being washed. Simply increasing the hardness of the tablet composition to prevent the tablet composition from disintegrating results in poor gradual solubility.

[0005] Therefore, an object of the present invention is to provide a tablet composition that is excellent in solubility and can reduce adhesion to items to be washed. [Means for solving the problem]

[0006] The present invention has the following aspects. <1> A tablet composition comprising component (A), component (B), and component (C), The component (A) is at least one selected from calcium sulfate, calcium carbonate, calcium hydrogen phosphate, and aluminum silicate, The component (B) is at least two selected from the group consisting of component (B1) and component (B2), The component (B1) is at least one selected from the group consisting of carnauba wax, rice wax, hydrogenated oil, sucrose fatty acid ester, sunflower wax, candelilla wax, and rose wax; The component (B2) is at least one selected from the group consisting of magnesium stearate, calcium stearate, sodium stearyl fumarate, and sodium lauryl sulfate, A tablet composition, wherein the component (C) is a water-soluble sugar. <2> The mass ratio of the component (A) to the component (B) is 0.5 to 3. <1> The tablet composition according to claim 1. <3> The component (B) includes both the component (B1) and the component (B2). <1> or <2> The tablet composition according to claim 1. <4> The mass ratio of the component (B1) to the component (B2) is 10 to 100. <3> The tablet composition according to claim 1. <5> The mass of each tablet composition is 1.5 g or more, The planar diameter of each tablet composition is 15.1 mm or more. <1> ~ <4> The tablet composition according to any one of the preceding claims. [Effects of the Invention]

[0007] The tablet composition of the present invention has excellent gradual solubility and can reduce adhesion to items to be washed. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a side view showing an example of a tablet composition of the present invention. [Figure 2] FIG. 2 is a side view showing another example of the tablet composition of the present invention. [Figure 3] FIG. 1(a) is a perspective view showing another example of the tablet composition of the present invention, and (b) is a cross-sectional view taken along line AA' of the tablet composition shown in (a). DETAILED DESCRIPTION OF THE INVENTION

[0009] (Tablet composition) The following describes in detail the embodiments of the present invention, but the present invention is not limited to the following embodiments and can be implemented with various modifications within the scope of the gist thereof. In this specification and claims, a numerical range expressed as "to" means a numerical range that includes the numbers before and after "to" as the lower and upper limits. For example, A to B is equivalent to A or more and B or less. The term "tablet composition" refers to a solid preparation that maintains a constant shape at room temperature (e.g., 25°C) and is unlikely to change shape over time, and examples thereof include tablets, gels, unit doses, etc. Tablet form is particularly preferred. "Slowly soluble" refers to the property of a tablet composition that does not dissolve all at once when it comes into contact with water, but rather dissolves only part of the tablet composition at or near the surface. Specifically, when 12 g of a tablet composition is immersed in water at 15°C for 40 minutes and then the mass of the tablet composition is measured, the loss in mass between before and after immersion is 0.2 g or more and less than 5.0 g. The slowly soluble nature of the tablet composition of the present invention is preferably 0.5 g or more and 2.5 g or less, and more preferably 0.8 g or more and less than 2.0 g.

[0010] The tablet composition of the present invention is a tablet-type solid preparation containing component (A), component (B), and component (C). The tablet composition may further contain, in addition to components (A), (B), and (C), components other than components (A), (B), and (C) (hereinafter also referred to as "optional components"), as necessary, within a range that does not impair the effects of the present invention.

[0011] <Component (A)> Component (A) is at least one selected from calcium sulfate, calcium carbonate, calcium hydrogen phosphate, and aluminum silicate. By including component (A), the tablet composition exhibits slow dissolution properties. As component (A), from the viewpoint of further increasing the gradual solubility, calcium sulfate and calcium hydrogen phosphate are preferred, calcium sulfate is more preferred, and calcium sulfate 0.5 hydrate is even more preferred.

[0012] The content of component (A) is preferably 20 to 70% by mass, more preferably 30 to 65% by mass, and even more preferably 40 to 60% by mass, based on the total mass of the tablet composition. When the content of component (A) is equal to or greater than the above-mentioned lower limit, the gradual dissolution can be further enhanced. When the content of component (A) is equal to or less than the above-mentioned upper limit, the hardness of the tablet composition can be increased, and adhesion of the tablet to the washed item can be further reduced.

[0013] <(B) component> The component (B) is at least one selected from the group consisting of the component (B1) and the component (B2). By including component (B), the tablet composition can increase the hardness of the tablet composition and facilitate tablet molding. The component (B) may be a combination of one or more selected from the component (B1) with one or more selected from the component (B2), or a combination of two or more selected from the component (B1), or a combination of two or more selected from the component (B2).Of these, the component (B) is preferably a combination of one or more selected from the component (B1) with one or more selected from the component (B2). By using a combination of two or more types of (B) component, productivity can be increased, the hardness can be set in a more appropriate range, and adhesion of substances to the items to be washed can be further reduced.

[0014] ≪(B1) Component≫ The component (B1) is at least one selected from carnauba wax, rice wax, hydrogenated oil, sucrose fatty acid ester, sunflower wax, candelilla wax, and rose wax. By including the component (B1), the tablet composition can further increase the hardness of the tablet composition and further reduce adhesion of the tablet composition to the washed item. From the viewpoint of further reducing adhesion of the tablet composition to the washed item, the component (B1) is preferably carnauba wax, rice wax, hydrogenated oil, sucrose fatty acid ester, or sunflower wax.

[0015] Any known carnauba wax can be used, including, for example, natural crude wax purified by degumming, deacidification, hydrogenation, fractionation, column treatment, or the like, as well as unpurified carnauba wax. Any known rice wax can be used, for example, rice wax separated during the refining of rice oil extracted from rice bran. Known hardened oils can be used, such as hardened castor oil, hardened palm oil, hardened rice oil, hardened coconut oil, and hardened soybean oil. Known sucrose fatty acid esters can be used, such as sucrose oleate, sucrose caprylate, sucrose caprate, sucrose laurate, sucrose stearate, sucrose palmitate, and sucrose myristate. As the sunflower wax, known ones can be used, for example, those obtained from sunflower seeds. Known candelilla waxes can be used, including those obtained from the stems of candelilla plants. As the rose wax, known ones can be used, and examples thereof include those obtained from rose flowers.

[0016] Component (B2) is at least one selected from magnesium stearate, calcium stearate, sodium stearyl fumarate, and sodium lauryl sulfate. The inclusion of component (B2) improves tableting properties, reduces tableting problems during the production of tablet compositions, and increases the productivity of tablet compositions. Component (B) is preferably magnesium stearate, calcium stearate, or sodium stearyl fumarate.

[0017] The content of component (B) is preferably 5 to 40% by mass, more preferably 10 to 35% by mass, and even more preferably 15 to 30% by mass, based on the total mass of the tablet composition. If the content of component (B) is equal to or greater than the above-mentioned lower limit, tableting properties can be improved, leading to increased productivity. If the content of component (B) is equal to or less than the above-mentioned upper limit, hardness can be increased.

[0018] When component (B) contains both component (B1) and component (B2), the content of component (B1) is preferably 5% by mass or more and less than 40% by mass, more preferably 10 to 35% by mass, and even more preferably 15 to 25% by mass, relative to the total mass of the tablet composition. When component (B) contains components (B1) and (B2), the content of component (B2) is preferably 0.1 to 10 mass%, more preferably 0.2 to 5 mass%, and even more preferably 0.5 to 3 mass%, relative to the total mass of the tablet composition. When component (B) contains component (B1) and component (B2), the mass ratio of component (B1) to component (B2) (B1 / B2 ratio) is expressed as component (B1) / component (B2), and is preferably 10 to 100, more preferably 12 to 50, and even more preferably 15 to 30. When the B1 / B2 ratio is equal to or greater than the above lower limit, adhesion to a tablet press during tablet production is suppressed, further improving tablet manufacturability. When the B1 / B2 ratio is equal to or less than the above upper limit, the hardness can be further increased.

[0019] The mass ratio of component (A) to component (B) (A / B ratio) is preferably 0.5 to 3, more preferably 1 to 2.8, and even more preferably 1.5 to 2.5. When the A / B ratio is equal to or greater than the lower limit, the hardness of the tablet composition can be increased, and adhesion of the material to the washed items can be reduced. When the A / B ratio is equal to or less than the upper limit, tableting properties can be improved, and productivity can be increased.

[0020] <(C) component> Component (C) is a water-soluble sugar. By including component (C), the tablet composition has excellent gradual solubility, appropriate hardness, and can reduce adhesion of deposits to the items being washed. The mechanism by which this effect is exerted is not clear, but is presumed to be as follows: When the tablet composition is brought into contact with water, component (C) dispersed within the tablet composition dissolves or disperses in the water, causing the tablet composition to gradually disintegrate. At this time, because the tablet composition gradually disintegrates, the concentration of small pieces of the disintegrated material (e.g., particles of component (A), small pieces of component (B), etc.) does not increase locally. Therefore, deposits do not adhere locally to the items being washed.

[0021] The component (C) is not particularly limited as long as it is a water-soluble sugar, and examples thereof include monosaccharides, disaccharides, oligosaccharides, and starch. With regard to component (C), "water-soluble" means that the solubility in ion-exchanged water is 10 g / 100 mL or more. The solubility of the component (C) is preferably 10 to 100 g / 100 mL, and more preferably 15 to 80 g / 100 mL.

[0022] The monosaccharide may be an aldose, a ketose, or a derivative thereof. Aldoses include xylose, glucose, mannose, galactose, etc. Aldose derivatives include so-called sugar alcohols such as xylitol and mannitol. Examples of ketoses include fructose. Disaccharides include sucrose (cane sugar), lactose (milk sugar), maltose, trehalose, and the like. The oligosaccharide is, for example, a trisaccharide to a decasaccharide, and examples of the oligosaccharide include fructooligosaccharide and galactooligosaccharide. As component (C), from the viewpoint of reducing adhesion to the items to be washed, monosaccharides, disaccharides and oligosaccharides are preferred, and oligosaccharides such as mannitol, lactose, sucrose, fructooligosaccharides and galactooligosaccharides are preferred. These sugars may or may not be in a granulated form. The sugars may be used alone or in combination of two or more.

[0023] The content of component (C) is preferably 10 to 60% by mass, more preferably 15 to 50% by mass, and even more preferably 20 to 40% by mass, based on the total mass of the tablet composition. If the content of component (C) is equal to or greater than the above-mentioned lower limit, adhesion of the substance to the washed item can be further reduced. If the content of component (C) is equal to or less than the above-mentioned upper limit, the gradual dissolution can be further improved.

[0024] The total content of components (A), (B), and (C) ((A+B+C) amount) is preferably 10 to 100% by mass, more preferably 40 to 100% by mass, even more preferably 50 to 90% by mass, and particularly preferably 65 to 80% by mass, based on the total mass of the tablet composition. When the (A+B+C) amount is within the above range, the gradual solubility and hardness of the tablet composition can be more appropriate, and the amount of deposits on the items to be washed can be further reduced.

[0025] The mass ratio of component (A) to the total amount of component (B) and component (C) is expressed as (A) component / {(B) component + (C) component}, and the mass ratio (A / (B+C) ratio) of component (A) to the total amount of component (B) and component (C) is preferably 0.1 to 5, more preferably 0.5 to 4, and even more preferably 1 to 3. When the A / (B+C) ratio is equal to or greater than the above lower limit, the gradual dissolution of the tablet composition can be made more appropriate. When the A / (B+C) ratio is equal to or less than the above upper limit, the hardness can be increased, and adhesion of the tablet composition to the washed item can be further reduced.

[0026] <Optional ingredients> Examples of optional components include microbial inhibitors such as disinfectants, bactericides, antibacterial agents, fungicides, and antifungal agents, deodorizers, repellents, ultraviolet absorbers, fluorescent agents, dye transfer inhibitors, fiber surface modifiers, redeposition inhibitors, metal ion trapping agents (chelating agents), fragrances, colorants, and organic acids. These optional ingredients are known substances and are readily available on the market, or can be prepared. The optional components may be used alone or in combination of two or more. The total amount of all components constituting the tablet composition is 100% by mass and does not exceed 100% by mass.

[0027] Examples of antibacterial agents include alkyltrimethylammonium salts having 12 to 16 carbon atoms (trade names "Lipocard C12-37W," "Lipocard C50," "Lipocard C16Cl Salt," "Lipocard C16MS Salt," etc., manufactured by Lion Specialty Chemicals Co., Ltd.), dialkyldimethylammonium salts (trade names "Lipocard 210-80E," manufactured by Lion Specialty Chemicals Co., Ltd., and "Carboquat MW50," manufactured by Lonza Co., Ltd.), dialkylmethylpolyammonium propionate, and the like. Examples of such compounds include lopionate (trade name "Bardap26" manufactured by Lonza Co., Ltd.), diclosan (trade name "Chinosan HP100" manufactured by BASF, etc.), triclosan, benzalkonium chloride (trade names "Barquat MS100" and "Barquat MB80" manufactured by Lonza Co., Ltd., etc.), benzethonium chloride, bis-(2-pyridylthio-1-oxide)zinc, 8-oxyquinoline, biguanide compounds (trade name "ProxelIB" manufactured by Lonza Co., Ltd., etc.), chlorhexidine hydrochloride, and polylysine. The content of the antibacterial agent is not particularly limited as long as it is an amount that can achieve the intended purpose, but it is preferably less than 10% by mass relative to the total mass of the tablet composition.

[0028] Examples of antifungal agents include Yotolu DP95 (compound name: diiodomethyl-p-tolylsulfone) and iodinated propynyl butylcarbamate. Examples of deodorizing agents 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), iminodisuccinic acid (IDS), hydroxyiminodisuccinic acid (HIDS), or salts thereof, zinc ricinoleate, bentonite, dextrin, etc. Examples of repellents include known components used as known pest repellents, such as N,N-diethyl-3-methylbenzamide (DEET) and icaridin. Examples of ultraviolet absorbers include 4-methoxy-4'-tert-butyldibenzoylmethane (trade name "Parsol 1789" manufactured by DSM Nutrition Japan, Inc.).

[0029] Examples of fluorescent agents include 4,4-bis(2-sulfostyryl)biphenyl disodium (trade name "Tinopal CBS-X" manufactured by BASF, etc.). Examples of dye transfer preventing materials include polyvinylpyrrolidone. Examples of anti-fading agents include 1,4-bis(3-aminopropyl)piperazine. Examples of the fiber surface modifier include enzymes such as cellulase, amylase, protease, lipase, and keratinase. Examples of anti-redeposition agents include water-soluble polymers having at least one repeating unit selected from the group consisting of alkylene terephthalate units and alkylene isophthalate units, and at least one repeating unit selected from the group consisting of oxyalkylene units and polyoxyalkylene units. Specific examples include products under the trade name "TexCare SRN-100" (manufactured by Clariant, weight-average molecular weight 2000-3000), "TexCare SRN-300" (manufactured by Clariant, weight-average molecular weight 7000), "Repel-O-Tex Crystal" (manufactured by Rhodia), and "Repel-O-Tex QC" (manufactured by Rhodia). Other anti-redeposition agents include alkylene oxide adducts of polyalkylene imines and alkylene oxide adducts of polyalkylene amines. Specific examples include products under the trade name "Sokalan HP20" (manufactured by BASF). Examples of metal ion capturing agents (chelating agents) include malonic acid, succinic acid, malic acid, diglycolic acid, tartaric acid, citric acid, and fumaric acid.

[0030] As the perfume, any perfume known to be compounded in a textile treatment composition can be used without any particular limitation.For example, a list of perfume raw materials that can be used is described in various documents, such as "Perfume and Flavor Chemicals", Vol. I and II, Steffen Arctander, Allured Pub. Co. (1994), "Synthetic Fragrances: Chemistry and Product Knowledge", Genichi Indo, Chemical Daily Co. (1996), "Perfume and Flavor Materials of Natural Origin", Steffen Arctander, Allured Pub. Co. (1994), "Encyclopedia of Fragrances", edited by the Japan Fragrance 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 amount of flavoring to be added is not particularly limited as long as the amount is an amount that can achieve the purpose of addition, but it is preferably less than 10% by mass based on the total mass of the tablet composition.

[0031] Fiber surface modifiers include silicone compounds. The molecular structure of the silicone compound may be linear, branched, or crosslinked. The silicone compound may be a modified silicone compound, and the modified silicone compound may be modified with one type of organic functional group or two or more types of organic functional groups. The silicone compound can be used in the form of an oil, or in the form of an emulsion dispersed with an optional emulsifier. Specific examples of silicones 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, etc. Examples include polyoxyethylene-modified silicone (such as "SH3775M" manufactured by DuPont-Toray Specialty Materials Co., Ltd.). The silicone content is not particularly limited as long as it is an amount that can achieve the intended purpose, but it is preferably less than 10% by mass relative to the total mass of the tablet composition.

[0032] Examples of colorants 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, and Turquoise P-GR (all trade names). The content of the colorant is not particularly limited as long as it is an amount that can achieve the purpose of blending, but it is preferably 0.00005 to 0.005% by mass relative to the total mass of the tablet composition.

[0033] Examples of organic acids 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, and oxalic acid.

[0034] <shape> The shape of the tablet composition is not particularly limited, but examples thereof include a shape having a cylindrical portion and a shape having a prismatic portion.

[0035] When the tablet composition has a cylindrical shape, the tablet composition may have a shape consisting of only the cylindrical part, or may have a shape having a cylindrical part and bulging parts that bulge above and below the cylindrical part.

[0036] When the tablet composition has a shape having a cylindrical portion and a bulging portion, examples of the tablet composition having such a shape include Sumi square flat tablets, Sumi round flat tablets, R tablets (standard R tablets), two-tiered R tablets, etc. Among these, Sumi square flat tablets and R tablets are preferred. The bulging portions of these tablets may be asymmetrical from top to bottom, but are preferably symmetrical from top to bottom.

[0037] FIG. 1 is a side view showing an example of a tablet composition 10 in the form of a flat square tablet. The tablet composition 10 in this example is a biconvex tablet having a cylindrical portion 11, a first bulging portion 12, and a second bulging portion 13. The diameter (diameter in plan view) of the cylindrical portion 11, i.e., the diameter of the top and bottom surfaces 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 equal to or greater than the above-mentioned lower limit, accidental ingestion can be more effectively prevented. If the diameter of the cylindrical portion 11 is equal to or less than the above-mentioned upper limit, uniform gradual dissolution can be achieved to the end. The first bulge 12 rises linearly from the vicinity of the periphery of one end face of the cylindrical portion 11 toward the center of the one end face at a predetermined rise angle θ, and any region including the zenith 12A becomes flat. The second bulge 13 rises linearly from the vicinity of the periphery of the other end face of the cylindrical portion 11 toward the center of the other end face at a predetermined rise angle θ, and any region including the zenith 13A becomes flat. The rising angle θ of the first bulging portion 12 and the rising angle θ of the second bulging portion 13 may be the same or different, but from the viewpoint of tablet strength, they are preferably the same. The thickness H1 of the tablet composition 10, that is, the sum of the thickness of the cylindrical portion 11 and the maximum thickness 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 Figure 1 has a horizontal surface (land portion 14) that is circular in plan view on the outer periphery of the first bulge portion 12, and a horizontal surface (land portion 15) that is circular in plan view on the outer periphery of the second bulge portion 13, but for example, it may not have a land portion and the tablet peripheral portion and the bulge rising portion may be in contact.

[0038] 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 in this example is a biconvex tablet having a cylindrical portion 21, a first bulging portion 22, and a second bulging portion 23, and the radius of curvature R of the curved surface of each of the first bulging portion 22 and the second bulging portion 23 is constant regardless of the position on the bulging portion surface. The diameter of the cylindrical portion 21, that is, the diameters of the top and bottom surfaces of the cylindrical portion 21, is the same as the diameter of the cylindrical portion 11 of the tablet composition 10 shown in FIG. The first bulge 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 bulge 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 bulge portion 22" refers to the radius of the circle when the curve on the surface of the first bulge portion 22 is considered to be part of a circle in a cross section cut perpendicular 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 bulge portion 23" refers to the radius of the circle when the curve on the surface of the second bulge portion 23 is considered to be part of a circle in a cross section cut perpendicular to the end face of the cylindrical portion 21 so as to pass through the zenith 23A. The zenith 22A of the first bulging portion 22 is the point located at the highest point relative to one end face, and the zenith 23A of the second bulging portion 23 is the point located at the lowest point relative 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, but from the viewpoint of tablet strength, they are preferably the same. The thickness H2 of the tablet composition 20, ie, the sum of the thickness of the cylindrical portion 21 and the maximum thickness 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 Figure 2 has a horizontal surface (land portion 24) that is circular in plan view on the outer periphery of the first bulge portion 22, and a horizontal surface (land portion 25) that is circular in plan view on the outer periphery of the second bulge portion 23, but for example, it may not have a land portion and the tablet peripheral portion and the bulge rising portion may be in contact.

[0039] When the tablet composition has a shape consisting of only 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. The height of the cylindrical portion, ie, the thickness of the tablet composition consisting of only the cylindrical portion, is preferably 5 to 20 mm, more preferably 8 to 17 mm, and even more preferably 12 to 16 mm. A tablet composition consisting of only a cylindrical portion may be flat, and if flat, 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.

[0040] When the tablet composition has a shape consisting of only a cylindrical portion, a recess may be provided on the surface of the cylindrical portion, specifically on at least one of the top and bottom surfaces of the cylindrical portion. FIG. 3(a) is a perspective view showing an example of a tablet composition 30 having a shape with recesses on the surface, and FIG. 3(b) is a cross-sectional view of the tablet composition 30 taken along line AA'. The tablet composition 30 shown in Fig. 3 is composed of only a cylindrical portion 31, and a recess 32 is provided in the center of the top surface 31a of the cylindrical portion 31. The cross section of the tablet composition 30 along the thickness H3 direction is rectangular, and the four corners are rounded by arcs. Although the tablet composition 30 in the illustrated example has flat top and bottom surfaces, at least one of the top and bottom surfaces may be curved.

[0041] The diameter of the cylindrical portion 31, i.e., 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-mentioned lower limit, 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-mentioned upper limit, uniform gradual dissolution can be achieved to the end.

[0042] The thickness H3 of the tablet composition 30, ie, the thickness of the cylindrical portion 31, is not particularly limited, but is preferably 5 to 20 mm, more preferably 8 to 17 mm, and even more preferably 12 to 16 mm, for example.

[0043] The depth h of the recesses 32 is preferably 20 to 40%, and more preferably 25 to 35%, of the thickness H3 of the tablet composition 30. When the depth h of the recesses 32 is equal to or greater than the above lower limit, the hardness of the tablet composition 30 is increased. When the depth h of the recesses 32 is equal to or less than the above upper limit, tableting can be easily performed. The diameter d of the opening of recess 32 is preferably 5 to 25 mm, more preferably 7 to 20 mm, and even more preferably 15 to 20 mm. Although the shape of the opening of recess 32 in the illustrated example is circular, the shape of the opening of recess 32 is not particularly limited and may be polygonal or elliptical. The volume of the recesses 32 is preferably 5 to 25%, and more preferably 10 to 20%, of the volume of the tablet composition 30. If the volume of the recesses 32 is equal to or greater than the above lower limit, the gradual dissolution of the tablet composition 30 is further improved. If the volume of the recesses 32 is equal to or less than the above upper limit, the hardness of the tablet composition 30 is further increased. The recess 32 may be formed in a spiral shape toward the center.

[0044] When the tablet composition has a shape having a prismatic portion, the tablet composition may have a shape consisting of only the prismatic portion, or may have a shape having a prismatic portion and bulging portions that bulge above and below the prismatic portion. When the tablet composition has a shape consisting of only a prismatic portion, a recess may be provided on the surface of the prismatic portion, specifically on at least one of the top and bottom surfaces of the prismatic portion.

[0045] Examples of tablet compositions having a prismatic shape include tablet compositions having a cylindrical shape in which the cylindrical portion is changed to a prismatic portion. The diameter of the circumscribing circle on the top or bottom surface of the prismatic portion 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 circumscribing circle on the top or bottom surface of the prismatic portion is equal to or greater than the above-mentioned lower limit, accidental ingestion can be more effectively prevented. If the diameter of the circumscribing circle on the top or bottom surface of the prismatic portion is equal to or less than the above-mentioned upper limit, uniform gradual dissolution can be achieved to the end. The shape of the top or bottom surface of the prismatic part is not particularly limited as long as it is polygonal, and examples thereof include a triangle, a rectangle, a pentagon, a hexagon, a heptagon, an octagon, and a star-shaped polygon.

[0046] The shape of the tablet composition is preferably a shape having a cylindrical portion, and from the viewpoint of increasing the hardness of the tablet composition, a shape having a cylindrical portion and a bulging portion, or a shape having a recess on at least one of the top and bottom surfaces of the cylindrical portion is more preferred, a square flat tablet shape, or a shape having a recess on at least one of the top and bottom surfaces of the cylindrical portion is even more preferred, and a shape having a recess on at least one of the top and bottom surfaces of the cylindrical portion is particularly preferred.

[0047] <Mass> The mass of the tablet composition per preparation is preferably 1.5 g or more, more preferably 2 to 20 g, and even more preferably 10 to 15 g. If the mass per preparation is equal to or greater than the above lower limit, accidental ingestion can be more effectively prevented. If the mass per preparation is equal to or less than the above upper limit, the hardness of the tablet composition can be further increased.

[0048] (Manufacturing method) The tablet composition can be obtained, for example, by tableting a mixture (also called a powder mixture) obtained by mixing component (A), component (B), component (C), and, if necessary, one or more optional components. 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.

[0049] (Application) The tablet composition of the present invention can be used together with the items to be washed when washing in a washing machine or when washing dishes in a dishwasher. That is, the tablet composition is preferably used for laundry treatment or dishwashing treatment, and more preferably for laundry treatment. In the case of laundry treatment, examples of items to be washed include textile products such as clothing, dishcloths, towels, sheets, curtains, etc. The material of the textile products is not particularly limited, and may be any of natural fibers such as cotton, silk, wool, etc., and chemical fibers such as polyester, polyamide, etc. In the case of dishwashing, examples of items to be washed include utensils used directly for eating, such as plates, chopsticks, and spoons, and cooking utensils, such as pots and knives. In this specification, these are collectively referred to as "tableware."

[0050] Furthermore, if the tablet composition of the present invention contains, in addition to components (A) to (C), a functional component other than component (A), a portion of the surface of the tablet composition or its vicinity dissolves each time the tablet composition comes into contact with water, and the functional component is slowly released together with components (A) to (C) contained in the tablet composition, allowing the effects of the functional component to be exerted continuously. Examples of functional ingredients include the optional ingredients described above. For example, if the tablet composition contains an antibacterial agent, an antifungal agent, a deodorizer, or the like, these functions are imparted to the interior of a washing machine or dishwasher in addition to the items to be washed.

[0051] (How to use) The tablet composition of the present invention can be used as is or placed in a container, tool, or bag. For example, when using the tablet composition of the present invention for laundry treatment, the tablet composition can be placed inside a commercially available laundry product such as a laundry ball or laundry net, and then placed in a washing machine along with the laundry to be washed. For example, the outer container of the "Eco Laundry Ball" manufactured by Ihara Kihan Co., Ltd., from which the tourmaline has been removed, can be used as the laundry ball. For example, the "Umi. Laundry Net" manufactured by Diyouth Co., Ltd. can be used as the laundry net. If the tablet composition of the present invention is completely or almost completely dissolved during washing, these laundry products can be reused by placing the tablet composition of the present invention separately in the laundry product. Laundry items such as laundry balls and laundry nets containing the tablet composition of the present invention may be placed in the washing machine beforehand, or may be placed on top of the items to be washed, or may remain in the washing machine throughout all steps of water pouring, washing, draining, rinsing, spin-drying, and (depending on the washing machine) drying. After washing is completed, when the items to be washed are removed from the washing machine, the laundry items such as laundry balls and laundry nets containing the tablet composition of the present invention may be left in the washing machine as they are, and can be used as is for the next wash. The tablet composition of the present invention can be used for dishwashing treatment in the same manner as for laundry treatment. [Example]

[0052] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to the following descriptions. In these examples, "%" indicates "% by mass" unless otherwise specified.

[0053] (Raw materials used) <Component (A)> A-1: Calcium sulfate 0.5 hydrate (manufactured by Taihei Chemical Industry Co., Ltd.). A-2: Calcium sulfate dihydrate (manufactured by Taihei Chemical Industry Co., Ltd.). A-3: Aluminum silicate (manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.). ·A-4: Calcium hydrogen phosphate.

[0054] <(B) component> B1-1: Carnauba wax (product number "TOWAX-17F", manufactured by Toa Kasei Co., Ltd.). B1-2: Hardened oil (product name: "Lubriwax", manufactured by Freund Corporation). B1-3: Rice wax (product number "TOWAX-3F17", manufactured by Toa Kasei Co., Ltd.). B1-4: Sunflower wax (product number "TOWAX-6F2", manufactured by Toa Kasei Co., Ltd.). B2-1: Magnesium stearate (product name: "Light magnesium stearate", manufactured by Taihei Chemical Industry Co., Ltd.).

[0055] <(C) component> C-1: Lactose (product name: Lactose G, manufactured by Freund Corporation). C-2: Mannitol (product name: Granutol F, manufactured by Meggle Japan Co., Ltd.). · C-3: Sucrose (manufactured by Kenis Co., Ltd.). · C-4: Oligosaccharide (cyclodextrin, manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.).

[0056] <Optional ingredients> ·Antibacterial agent: Dichlosan.

[0057] (Evaluation method) <Slowly soluble> Each tablet composition was placed in a protective container (a container in which the tourmaline had been removed from an "Eco Laundry Ball," manufactured by Ihara Kihan Co., Ltd.), and the protective container containing the tablet composition was placed in a Panasonic drum washing machine (NAVX-7600L) and washed for approximately 40 minutes on the standard cycle. The change in mass of the tablet composition before and after washing was taken as the amount of gradual dissolution. Similar evaluations were performed a total of five times, and the average amount of gradual dissolution was calculated from the amounts of gradual dissolution obtained five times. The average amount of gradual dissolution was evaluated based on the following evaluation criteria.

[0058] <Evaluation Criteria> ◎: Average gradual dissolution amount is 0.8g or more and less than 2.0g. 〇: The average gradually soluble amount is 0.5g or more but less than 0.8g, or 2.0g or more but less than 2.5g. △: The average gradually dissolved amount is 0.2 g or more but less than 0.5 g, or more than 2.5 g but less than 5.0 g. ×: The average gradually dissolved amount is less than 0.2 g or 5.0 g or more.

[0059] <Hardness> Using a compression strength measuring device (manufactured by Imada Co., Ltd., product name "Digital Force Gauge DST-200N"), the maximum pressure required to break one tablet of each tablet composition was measured, and the hardness was evaluated based on the following evaluation criteria.

[0060] <Evaluation Criteria> ◎: Maximum pressure is 50kgf or more. 〇: Maximum pressure is 40kgf or more but less than 50kgf. △: Maximum pressure is 30kgf or more but less than 40kgf. ×: Maximum pressure is less than 30kgf.

[0061] <Adhesion (preventing adhesion to items being washed)> Two tablets of each tablet composition were placed in a protective container (a container containing tourmaline removed from an "Eco Laundry Ball" manufactured by Ihara Kihan Co., Ltd.). A protective container containing the tablet composition and 4 kg of black clothing were placed in a vertical washer / dryer (manufactured by Toshiba Corporation, product name "AW-8V2"), and the clothing was washed for approximately 40 minutes on the standard cycle (from pouring water to spinning, water temperature 15°C). The amount of deposits (small particles) on the clothing was then visually observed, and the adhesion was evaluated based on the following evaluation criteria.

[0062] <Evaluation Criteria> ◎: No adhesions. ◯: Almost no adhesion. △: Some adhesion is observed, but not to a problem level. ×: Adhesion is noticeable.

[0063] (Examples 1 to 14, Comparative Examples 1 to 3) Based on the formulations shown in Tables 1 and 2, the powders of each component were weighed into a plastic bag so that the total weight was 200 g, and the plastic bag was shaken by hand 100 times to mix the powders, yielding a powder mixture. The resulting powder mixture was compressed at a compression pressure of 50 kN using a single-punch tablet press (manufactured by Fuji Yakuhin Kikai Co., Ltd., product name "FY-TPF-100S") with a flat, square-shaped punch having a cylindrical portion diameter of 30 mm, to yield a tablet composition having the shape of a square-shaped flat tablet as shown in Figure 1. The mass per formulation was 12 g. The thickness of the tablet composition was 15 mm, and the rising angle θ of the bulging portion was 30°. The tablet compositions obtained were evaluated for gradual dissolution, hardness and adhesion, and the results are shown in the table. In the table, "-" indicates that the product was not blended.

[0064] [Table 1]

[0065] [Table 2]

[0066] As shown in Tables 1 and 2, Examples 1 to 14 in which the present invention was applied were evaluated as "Fair" to "Excellent" in terms of gradual dissolution, hardness, and adhesion. Comparative Examples 1 to 3, which lacked any of the components (A) to (C), were all rated as "x" for gradual solubility. In addition, Comparative Example 1, which contained only one of the components (B), was rated as "x" for hardness and non-stickiness. [Explanation of symbols]

[0067] 10. Tablet Composition 11 Cylinder 12 First bulge 12A Zenith 13 Second bulge 13A Zenith 14 Land Department 15 Land Department 20 Tablet Composition 21 Cylinder 22 First bulge 22A Zenith 23 Second bulge 23A Zenith 24 Land Department 25 Land Department 30 Tablet Composition 31 Cylinder 31a Top 31b Bottom 32 recess

Claims

1. A tablet composition comprising component (A), component (B), and component (C), The component (A) is at least one selected from calcium sulfate, calcium carbonate, calcium hydrogen phosphate, and aluminum silicate, The component (B) is at least two selected from the group consisting of a component (B1) and a component (B2), The component (B1) is at least one selected from the group consisting of carnauba wax, rice wax, hydrogenated oil, sucrose fatty acid ester, sunflower wax, candelilla wax, and rose wax; The component (B2) is at least one selected from the group consisting of magnesium stearate, calcium stearate, sodium stearyl fumarate, and sodium lauryl sulfate, A tablet composition, wherein the component (C) is a water-soluble sugar.

2. The tablet composition according to claim 1, wherein the weight ratio of the component (A) to the component (B) is 0.5 to 3.

3. The tablet composition according to claim 1 , wherein the component (B) includes both the component (B1) and the component (B2).

4. The tablet composition according to claim 3, wherein the weight ratio of the component (B1) to the component (B2) is 10 to 100.

5. The mass of each tablet composition is 1.5 g or more; The tablet composition according to any one of claims 1 to 4, wherein the diameter of each tablet composition in plan view is 15.1 mm or more.

Images