JPH04100900A - Composite solid material and production thereof - Google Patents

Abstract

PURPOSE:To enable a rapid diffusion of active ingredient into water by bonding together a non-foaming molded product and a water-soluble or water- disintegrable foaming molded product. CONSTITUTION:A non-foaming molded product 1 having an apparent specific gravity of 1 or below is prepd. by forming an org. substance which is solid at ordinary temp. (e.g. polyethylene glycol having an average mol.wt. of 4.000-6.000) and/or an inorg. powdery material having an abs. specific gravity of 1 or above (e.g. TiO2) into particles (0.01mu to 2mm) or granules (50mu to 5mm) and then punching, fusion-molding or press-molding the powders or granules. Separately a foaming powdery molded material 2 having an apparent specific gravity of 1 or above is prepd. by packing a powdery mixture consisting of 8-30wt.% water-soluble or water-disintegrable carbonate or hydrogen carbonate which is solid at ordinary temp. (e.g. NaHCO3) and an org. acid or an inorg. weak acid (e.g. citric acid), into the cavity and press-molding the mixture under a pressure of 200 to 1.5X10<3>kg/cm<2>. Then, the molded products 1 and 2 are bonded together.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to a composite solid material and a method for producing the same.More specifically, a composite solid material that floats on the water surface in a tank and dissolves necessary components and its production. Regarding the method.

[Conventional technology]

Yoto: Various foaming agents are known as composite solids.

For example (!) Examples of such effervescent agents include foams for baths, bath water purification, or pool water sterilization that contain active medicinal ingredients and carbonate, bicarbonate, organic acid components, etc. The medicinal ingredients contained include, for example, foaming agents for bathing, and dried extracts of medicinal plants such as dried extract of Angelica sp. In addition, necessary components other than effective medicinal components include, for example, carbonates, hydrogen carbonates, organic acid components, and others. During production, these components are mixed and powdered, and the powder mixture is compressed into tablets or granulated.

When the above-mentioned effervescent agents are added to water or hot water, the components therein react with each other, rapidly dissolving and dissolving medicinal ingredients while generating carbon dioxide gas.

Therefore, especially when used in foaming agents for baths, it is appreciated not only because of the medicinal effects of the active medicinal ingredients it contains, but also because the effervescent carbon dioxide gas promotes blood circulation.

[Problem to be solved by the invention]

By the way, all conventional composite solids have an apparent specific gravity of l.
It is larger and when submerged in water, it reacts with water to generate carbon dioxide gas and elute the active ingredients into the water.

The spread of the active ingredient throughout the water is simply due to the diffusion phenomenon caused by the concentration gradient.

Therefore, bath additives, etc., are low-temperature products that only need to be stirred during bathing.
Bath Water Purifier L Pool Water Sterilizer When toilet cleaners are used in a large volume of water, conventional methods that rely solely on natural diffusion take time and do not fully demonstrate their medicinal effects.

In order to solve these conventional problems, the present invention provides a composite solid whose ingredients are quickly distributed throughout the water in the container after being dropped into water, and a method for producing such a composite solid. is a technical issue.

[Means to solve the problem]

In order to solve the above problems, the first composite solid of the present invention! A non-foamable molded part and a foamable powder molded part are joined, both are water-soluble or water-disintegratable, and at least one of them contains the necessary active ingredient,
The overall appearance of the two combined has a specific gravity of less than 1.

The second composite solid of the present invention has a water-soluble or water-disintegratable foamable powder molded part and the powder molded part joined together, and floats on the water surface while holding the powder molded part in water. the box and at least one of the foamable powder molded part contains an active ingredient that can be dispersed into water.

The method for producing a composite solid product of the present invention includes Step A of molding a non-foamable molded part, Step B of molding a foamable powder molded part, Step C of joining the powder molded part of
At least one of the above two steps A and B includes a step of incorporating an active ingredient into the molded part to be obtained, and furthermore, Step A of molding a non-foamable molded product is , a step of punching and molding a water-soluble organic compound that is solid at room temperature, and/or an inorganic powder into a molded article of a predetermined shape, a step of melt-forming, and a step of press-molding at a predetermined pressure. On the other hand, Step B of molding a foamable molded product consists of a hydrogen carbonate and/or carbonate that is solid at room temperature, and further an organic acid and/or an inorganic weak acid that is solid at room temperature, such a salt. This is a process of press-molding a powder mixture containing a foamable component consisting of a foaming agent and an acid under a specific pressure.

The step of melt molding in step A is preferably carried out while stirring with a stirrer to encapsulate a large number of air bubbles, and adjusting the apparent specific gravity of the resulting non-foaming molded part to 0.5 to 0.9.

[Effect]

Since the composite solid of the present invention is a composite solid having the above-mentioned structure, it floats on the water surface, reacts with water and dissolves as a whole, and at the same time contains bicarbonate and/or carbonate that are solid at room temperature. Furthermore, when a molded product containing an organic acid and/or an inorganic weak acid that is solid at room temperature, such a salt, and an acid generates carbon dioxide gas, it gives a driving force to the molded product and floats on the water surface.

Normally, once the gas from the foaming of the foamed molding collapses a part of the foamed molded, even slightly, the foamed molded product will begin to collapse significantly, and the gas will concentrate in the collapsed and dented part and will move in a certain direction. Further propulsion is applied to the water, and the active ingredients are dispersed widely and evenly on the water surface.

The active ingredient blended into the rain molded product spreads throughout the water in the container, and can be more uniformly dispersed without stirring by external force.

The present invention will be explained in more detail below.

Composite Solid Material> The composite solid material of the present invention is usually preferably used as a bathing vessel cleaner, a disinfectant, or the like. However, its uses are not limited to these.

As shown in FIG. 1, the first composite solid of the present invention consists of two parts: a non-foaming molded part, which is part A, and a foamable powder molded part, which is part B.

The non-foaming molded part, which is part A, usually contains a water-soluble organic compound that is solid at room temperature and/or an inorganic powder as a main component.

When part A of the composite solid is made of a water-soluble organic compound, air or an inert gas such as nitrogen or carbon dioxide gas may be dispersed in the molded product. When the gas is dispersed, the apparent specific gravity is less than 1, depending on the conditions, it is less than 0.95, and even less than 0.
It is preferably 9 to 0.5.

Adjustment of specific gravity is preferably carried out by mixing air or the like with stirring during production.

When using an inorganic powder with a true specific gravity of 1 or more as the main component of part A, if atomization treatment and/or granulation treatment is performed in advance before molding the non-foaming molded part, the apparent specific gravity of part A will decrease. It is preferable to make it less than 1. Further, during the granulation treatment, it is preferable to use the water-soluble organic compound as a binder.

Part B, that is, the foamable powder molded part constituting the composite solid, contains a foaming component.

Note that the specific gravity of such a curved portion is preferably 1.06 to 1.07. In particular, when the specific gravity of part A is less than 1 and the specific gravity of part B is within this range, a foaming effect occurs in water and a strong driving force is exerted on the composite solid floating on the water surface, which is particularly preferable.

Part B is preferably mixed during production using a Henschel machine, for example, and its specific gravity is adjusted to 1.06 to 1.07.

Both parts A and B are joined. Both may be bonded to each other via an adhesive layer C made of a water-soluble polymer compound. Moreover, at least one of the A section and the B section may be fused to the other.

Both may be mechanically fitted into each other. The bonding form between the two is not a particular problem.

The overall apparent specific gravity of the composite solid material of the present invention is less than 1.

Preferably less than 1 and 0.6 or more, more preferably 0.9
5 to 0.7 is desirable. If the specific gravity is 1 or more, it is not good because it will sink even after it is put into the water. It is preferable that the weight ratio of part A to part B is +i, and the ratio of part A to part B is 1=1 to 2:1.

The side surface of the composite solid where parts A and B are joined is provided with chive line grooves as shown in Figure 2, or if part B is biased to one side with respect to the center of gravity, the carbonic acid The direction in which gas is ejected can be controlled. In this case, the composite solid material moves while rotating or swirling on the water surface, and as a result, each component that makes up the composite solid material automatically spreads widely and uniformly in the water. preferable. It is also preferable because it enhances the visual effect.

<Components> Specifically, parts A and B of the composite solid material of the present invention preferably contain the following components as main components.

The main component of Part A is a water-soluble organic compound that is solid at room temperature, an inorganic powder, or both.

Organic compounds that can be preferably used as the main component of part A include 1) polyhydric alcohol milk such as polyethylene glycol, polyoxyethylene polyoxypropylene glycol, sorbitol, mannitol, glucose, starch, gum arabic, sodium alginate, carboxylic acid, etc. vinyl polymer methylcellulose,
Water-soluble polymers such as dextrin, polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene (15 moles or more) fatty acid ester, polyoxyethylene (15 moles or more) phytosterol, polyoxyethylene (20 moles) (above) Alkyl phenyl ether, polyoxyethylene (50 mol or more), surfactants such as cured castor QN-acylmethyl taurate, organic acids such as citric acid, succinic acid, tartaric acid, etc., g-ascorbic acid, choline, inositol , vitamins such as riboflavin, dyes, and natural pigments. Enzymes can also be used. These water-soluble organic compounds are preferable because when the molded product disintegrates on the water surface, it dissolves without floating on the water surface.

Inorganic powders (with true specific gravity of 1 or more, specifically sulfur, titanium oxide, zinc oxide, magnesium oxide,
Inorganic oxides such as iron oxide, chromium oxide, silicic anhydride, inorganic salts such as sodium carbonate, calcium carbonate, magnesium carbonate, magnesium silicate, calcium sulfate, sodium chloride, talc, kaolin, bentonite, calamine,
Examples include composite oxides such as mica. These inorganic powders are preferable because when the molded product disintegrates on the water surface, the powder does not float on the water surface but dissolves and precipitates.

These may be used alone or in combination. Among them, polyethylene glycol (average molecular weight 4000-6000), polyoxyethylene (20 moles or more) polyoxypropylene glycol, polyoxyethylene (10 moles or more) alkyl ether, polyoxyethylene (15 moles or more) polyoxypropylene alkyl ether , N-acylmethyltaurine salts are preferred, and polyethylene glycol is particularly preferred.

The eight parts constituting the composite solid material, that is, the foamable powder molded parts, contain a foaming component.

The foaming component contained in Part B consists of salt and acid.

Examples of the salt constituting the foaming component include hydrogen carbonate or carbonate, or both, which are solid at room temperature.

The acid constituting the foaming component may be an organic acid or an inorganic weak acid, or both, which are solid at room temperature.

Examples of organic acids that can be used in the present invention include succinic acid, citric acid, tartaric acid, fumaric acid, lactic acid,
Examples include malic acid. Examples of weak acids that are solid at room temperature include sodium hydrogen phosphate. These may be used alone or in combination. Among them, citric acid is particularly preferred.

In addition, in the present invention, the hydrogen carbonate that constitutes the foaming component together with such an acid is solid at room temperature, and specifically includes sodium hydrogen carbonate, potassium hydrogen carbonate, other alkali metal salts other than lithium, and carbonate. Ammonium hydrogen may be mentioned.

These may be used alone or in combination. Among these, sodium hydrogen carbonate is particularly preferred.

Furthermore, in addition to hydrogen carbonate and organic acids that are solid at room temperature,
Carbonates may also be included in the entire foaming component. Adding carbonate to one of the foaming component constituents is preferable because it suppresses the generation of carbon dioxide gas due to natural decomposition of hydrogen carbonate and allows long-term storage. Preferable carbonates to be included as a foaming component include sodium carbonate, potassium carbonate, and ammonium carbonate, among which sodium carbonate is particularly preferred.

The ratio of each constituent substance in the foaming component composed of the above compounds is 20 to 60% by weight of an organic acid or an inorganic weak acid, or if both are used, the total ratio of both is 20 to 60% by weight based on the entire foaming component. % is preferable. Part 1 The proportion of hydrogen carbonate is preferably 8 to 30% by weight. The carbonate content is preferably 5 to 30% by weight.

In the present invention, either or both of Part A and Part B, which are composed of such components, contain active ingredients depending on the intended use.

For example, if the application is a bath additive, the following bath medicinal ingredients may be appropriately distributed and included in Part A, Part B, or both.

Such medicinal bath ingredients that can be used in the present invention include medicinal herb (raw noodle herb) extract, seaweed extract, enzyme (lipase, protease, etc.), sulfur, etc. For example, medicinal herbal extracts include Angelica, Chimpi, Senkyu, Rhododendron, Rhododendron, Daylily, Coix barley, Bukuriyo, Botanpi, Byakujutsu, Byakushu, Arunbacus,
Scutellariae, Scutellariae, Scutellariae,
Malva, Hamameli, Arnica, Calendula,
Examples include extracts of Sambucus perforatum, Sambucus japonica, and Gennoshoko. Although it is preferable to use these extracts in dry form, they can also be used in the form of an extract if the amount is small. These (dai) may be used alone or in combination.

In addition, fragrances, hydrocarbons, fatty acids, oils such as wax, alcohols such as ethanol and propatool, glycerin,
．． 3-butylene glycol, polyethylene glycol,
Liquid polyhydric alcohols such as sorbitol, other preservatives, bactericides, ultraviolet absorbers, antioxidant colorants, K W
It is also preferable to include amino acids, sodium hyaluronate, caramel, cyclodextrin, etc. as active ingredients.

In particular, it is preferable to include perfumes, colorants, etc., as this will improve the atmosphere during bathing.

For example, sulfur is a water-soluble organic compound or inorganic powder that is solid at room temperature, and can be preferably used as the main component of Part A, but can also be used as a medicinal component.

When the product is used as a cleaning agent for swimming pools or toilets, for example, a disinfectant or an antibacterial agent may be included as an active ingredient.

When the composite solid product of the present invention is a bath or pool cleaning agent, the following substances may be appropriately distributed as active ingredients to Part A, Part B, or both.

Such medicinal ingredients include, for example, sodium peroxide, bleaching powder, rose hydroxybenzoic acid ester milk, alkyldimethylbenzylammonium salt, salicylic acid,
Examples include bactericidal II and antibacterial agents such as benzethonium chloride, chlorohexidine gluconate, and hexachlorophene.

Further, for example (f), when the composite solid according to the present invention is used as a cleaning foaming agent, it is preferable to include, for example, a surfactant as an active ingredient.

Examples of surfactants in such cases include, for example, alkali metal salts of alkyl sulfonates such as sodium alkyl sulfonates, alkali metal salts of olefin sulfonates such as sodium σ-olefin sulfonates, and alkali metal olefin sulfonates such as sodium σ-olefin sulfonates. Examples include metal salts, acylamino acid alkali metal salts, and fatty acids. These may be used alone or in combination. Among these, alkyl sulfonic acid alkali salts, particularly sodium alkyl sulfonates, or sodium Q-olefin sulfonates are preferred.

Examples of the components of parts A and B are shown in Table 1 in weight percent.

(Hereinafter, blank space) 1. The true specific gravity of the component of the box joined to the foamable powder molded part may be 1 or more, or less than 1.

It is sufficient that the box can float on the water surface while holding the foamed powder molded part in the water. For example, the interior may be a closed body with a cavity, or may be formed in the shape of a boat with an opening at the top. The shape is not a problem at I/1°, and it is preferable that the foamed powder molded part is joined to the bottom part as the exterior of the box body.

Also, the joining method and joining form are not a particular problem, but
The value in parentheses is the optimal value.

In the second composite solid of the present invention, a box and a water-soluble or water-disintegratable foaming powder molded part are joined.

The box component may be water-soluble or water-insoluble/non-water disintegratable.

The constituent components of the foamable powder molded part may be formed from the various components described in the description of the first composite solid material above.

Note that this second composite solid material contains the same active ingredients as those already described in the description of the first composite solid material, depending on the actual use.

The active ingredient is contained within the foamable powder molding in l/m,
The foaming powder molded part may be formed so as to melt or dissipate as it melts, and the foaming powder may be loaded in a box made of a non-water-soluble and non-water-disintegratable material. It may also be arranged such that it radiates through a small hole provided at the bottom of the body.

In addition, in the description of the first composite solid, the box is formed of the water-soluble or water-disintegratable substance mentioned above as the constituent material of part A, and the active ingredient is the constituent material of the box. It may be contained as one of the following.

Production Method> The above-mentioned first composite solid of the present invention may be produced, for example, by the following method.

Part A and part B of the first composite solid may be formed separately.

Incidentally, either the molding step of Part A or the molding step of Part B always includes a step of mixing active ingredients such as bath medicinal ingredients or fragrances into the ingredients.

The method for molding part A will be described on the premise that a step of mixing the active ingredient is included in step A, which is the molding step of part A, and step B, which is the molding step of part f3B.

As step A, it is preferable to use a die-cutting method, a melt-filling method, a press molding method, or the like.

In the case of the die-cutting method or the melt-filling method, the water-soluble organic compound alone or a mixture of the water-soluble organic compound and inorganic powder is heated and melted, optionally in the presence of an organic solvent, and air is added to the mixture. Or blow inert gas
Or, while kneading, the apparent specific gravity is adjusted to 0.5 to 0.9.

Next, in the case of the die-cutting method, the molten material is cooled and solidified into a sheet by a casting method or the like, and then die-cutting is performed using a cutting die having a predetermined shape.

In the case of the melt-filling method, the molten material is poured and filled into a cavity carved by reversing the planned shape, and then cooled and solidified.

On the other hand, in the case of the press molding method ('L), a water-soluble organic compound and/or inorganic powder is filled into a cavity carved by reversing the planned shape, and then press molded at a predetermined pressure.

In addition, when performing press molding, before molding, melt granulation method, spray granulation method, fluidized bed granulation method, crush granulation method,
Water-soluble organic compounds are granulated (0.01 μ to 2 mm) by compression granulation, and if necessary, granulated to an apparent specific gravity of 1 or less, preferably 0.5 to 0.9 (50 μ
~5mm) L, and for inorganic powders, the apparent specific gravity is 1
Below, it is preferably finely divided to 0.5 to 0.9 (20μ or less, preferably 1μ or less) or granulated (50μ to 5mm).
) It is a good idea to do so.

Step B of forming a foamable molded article may be carried out as follows.

For example, an effervescent component consisting of hydrogen carbonate, carbonate, powdered organic acid, inorganic weak acid, etc. that is solid at room temperature, and if necessary, other powder agents are added and mixed. Examples of other powder agents include the above-mentioned water-soluble organic compounds and inorganic powders.

Mixed order does not matter. A specific amount of this powder mixture is taken out and filled into a cavity with a specific volume, and then the whole is pressed.

The weight of the powder mixture filled into the cavity is preferably 4 to 0.5 times the weight of the non-foaming molded part to be joined.

Press force is 200~1.5x 103Kg/c,
Preferably 200~I X 103Kg/crn2
is desirable. If the pressing force is less than 200 kg/cm2, the foamed molded product obtained tends to collapse, which is not preferable. Press force is 1.5 x 103Kg/a
If it exceeds m2, the hardness of the foaming agent obtained will be too high and it will be difficult to dissolve in water, which is not preferable.

In addition, the press machine starts to leak air, making it extremely difficult in practice. Further, when press molding is performed within this range, the specific gravity of the foamable powder molded part obtained is usually 1.
It falls within the most preferred range of 06 to 1.07. By inserting a polypropylene or polyethylene film between a part of the press pusher and the powder for the outer shell component to be compressed, the film can be prevented from peeling between the part of the press pusher and the powder for the outer shell component to be compressed. This is preferable because it can make it easier.

In the present invention, the A part and B part obtained in this way are
Joined during the process. For example, a sufficient amount of water may be impregnated in a water-soluble polymer compound, and both bonding surfaces may be adhered and dried.

Alternatively, when part A is manufactured by a melting method, the obtained part A may be brought into contact with part B in an uncured stage, and as part A is cured, part B may be joined.

According to such a method, a composite solid having an apparent overall specific gravity of less than 1 can usually be obtained.

〔Example〕

The present invention will be explained in detail below.

<Example 1> The ingredients shown in Table 2 used to produce a bath additive constituted Part A 1, and the ingredients shown in Table 3 constituted Part 8 2 (hereinafter referred to as blank space) Table 2 Unit Weight % Part 3 Table Unit: Weight % The compositions having the proportions shown in Table 2 were mixed, heated and melted at about 80°C, stirred while foaming, and the stirring was stopped when the apparent specific gravity reached about 0.85. To obtain Part A 1 in the uncured stage, mix the compositions in the proportions shown in Table 3 in a Henschel mixer, then weigh them and fill them into a circular cavity. It was then pressed at a pressure of 100kg/am2 to form a tab left with a diameter of 2an and a thickness of 1cm.
After obtaining part 8 2, place the above part 8 2 on the previously uncured part A 1 and glue them together.Next, after cooling and solidifying the rubber cavity in water, inflate the rubber cavity and form the first part. After taking out the composite solid as shown in the figure, a spiral groove 3 was formed around the obtained composite solid to obtain a composite solid as shown in Figures 2 and 3. When this was floated in hot water of about 40°C, it disintegrated in about 15 minutes while moving around in the bathtub (Example 2) Table 4 shows the ingredients of Part A 1 that formed the water washer cleaning agent. The components of No. 2 are shown in Table 5.

Table 4 Unit: Weight % Table 5 Unit: Weight % The compositions having the proportions shown in Table 4 were mixed, heated and melted at about 80°C, and stirred with foaming at that temperature until the apparent specific gravity was 0.
．． When the temperature reached about 8, stirring was stopped.

The foamed composition was left to cool to about 50°C for a while, and then formed into a sheet with a thickness of about 10+n/+n by a casting method. Punch out a 2cm disc to obtain Part A 1.Meanwhile, mix the compositions in the proportions shown in Table 5, mix them in a Henschel mixer, weigh them, and put them into a circular cavity with 200k.
Press L with pressure of g/am2 Diameter 24 Thickness 1c
A very small amount of carboxymethyl cellulose solution with a weight concentration of 50% is applied as an adhesive to the disc of A part 1, which has been molded into tablet-shaped 8 parts 2 of 0 part 4.
8 part 2 is laminated on top of that, and A part 1 and 8 part 2 are glued together to obtain a composite solid as shown in Figure 4.9 When the obtained composite solid is put into a water washer, it floats on the water surface. It moves around actively generating carbon dioxide gas, disintegrates in about 10 minutes, and spreads the alkyldimethylbenzyl ammonium salt and bleaching powder, which are nine disinfectants, throughout the washer, resulting in a more rapid sterilizing effect than conventional cleaning agents. <Example 3> The compositions having the proportions shown in Table 2 were mixed and heated and melted at about 80°C to obtain a melt with a specific gravity of 1.1. To obtain a ship-shaped box 5, on the other hand, form part 8 of Example 1 again according to Example 1, and place it on the back side of the bottom of the box 5 near the stern. exterior,
Obtain a composite solid material as shown in Fig. 5. f-B part 2 and box body 5
The carboxymethylcellulose solution of Example 2 was used as the adhesive for the box, and when it was floated in a bathtub at a water temperature of 39 degrees, it dissolved while moving vigorously on the water surface, diffusing the active ingredient into the bathtub. Since it is formed into a boat shape, it can be effectively floated on water even if the constituent material of the boat shape has a true specific gravity of 1 or more. [Effects of the Invention] The composite solid of the present invention has the above structure. As it floats on the surface of the water, it disintegrates while generating carbon dioxide gas and propulsion, so the active ingredients blended into it are quickly diffused into the water and its effective effects are immediately exerted.

[Brief explanation of drawings]

Fig. 1 is a side view of the composite solid in which part A and B are joined in Example 1, and Fig. 2 is a side view of the composite solid in Example 1 with spiral grooves formed around the periphery. The figure shows the bottom surface of the composite solid in Example 1 with spiral grooves formed around its periphery. Figure 4 is a side view of the composite solid in Example 2, and Figure 5 is a sketch of the composite solid in Example 3. It is. 1. Part A 2.. 8 Part 3.. 0 Patent applicant Pola Chemical Industries, Ltd. Agent Sounori Sato, Patent attorney Bentoyama Toyama Hidemi Matsukura Figure 2 Figure 3

Claims (7)

[Claims] (1) A non-foaming molded part and a foamable powder molded part are joined, both are water-soluble or water-disintegratable, at least one of them contains the necessary active ingredient, and both A composite solid having an overall apparent specific gravity of less than 1. (2) The composite solid according to claim 1, wherein the non-expandable molded part has an apparent specific gravity of less than 1, and the foamable powder molded part has an apparent specific gravity of more than 1. (3) Includes a water-soluble or water-disintegratable foaming powder molded part and a box that connects the powder molded part and can float on the water surface while holding the powder molded part in the water. , a composite solid material in which at least one of the box body and the foamable powder molding part contains an active ingredient that can be dispersed into water. (4) The foaming powder molding part is made of hydrogen carbonate and/or carbonate that are solid at room temperature, organic acids and/or inorganic weak acids that are solid at room temperature, and foaming made of such salts and acids. The composite solid material according to any one of claims 1 to 3, containing a sexual component. (5) The composite solid material according to any one of claims 1 to 4, wherein the non-expandable molded part and the foamable powder molded part are joined with a water-soluble polymer compound layer interposed therebetween. (6) Step A of molding a non-foaming molded part and Step B of molding a foamable powder molded part, and further joining the obtained non-foaming molded part and the foamable powder molded part. Step C, the apparent overall specific gravity is less than 1, at least one of the two steps A and B described above includes a step of containing an active ingredient in the molded part to be obtained, and , Step A of molding a non-expandable molded product includes a step of punching and molding a water-soluble organic compound and/or an inorganic powder that is solid at room temperature into a molded product of a predetermined shape, a step of melt-molding, and a predetermined pressure. On the other hand, in step B of forming the foamable molded product, hydrogen carbonate and/or carbonate, which is solid at room temperature, and A method for producing a composite solid material, which is a step of press-molding a powder mixture containing a solid organic acid and/or inorganic weak acid, and a foaming component made of such a salt and an acid, under a specific pressure. (7) The step of melt-molding is performed while stirring with a stirrer to encapsulate a large number of air bubbles, and adjusting the apparent specific gravity of the resulting non-foaming molded part to 0.5 to 0.9. A method for producing a composite solid product.