JP2000160198A - Production of briquette detergent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method capable of simply producing a briquette detergent having excellent solubility. SOLUTION: This method for producing a briquette detergent comprises (1) a process for compressing detergent granules to form the primary molded product wherein plural briquette portions are connected to each other through connection portions, (2) a process for disintegrating the primary detergent molded product to obtain the briquette portions separated from the connection portions, and (3) a process for recovering the briquette portions as the briquette detergent.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a method for easily producing a briquette detergent having excellent solubility.

[0002]

2. Description of the Related Art Conventionally, as a form of a detergent, a liquid type and a granular type are known. Current,
In particular, granular detergents are widely used. However,
Granular detergents have a problem of scattering of detergent particles at the time of use. In view of convenience of handling by users, particularly recently, attempts have been made to process detergent particles into tablets (tablets and briquettes). . As a technique relating to such tableting, for example, JP-A-10-88198 discloses
By manufacturing a briquette detergent having burrs using a roll press method, by removing the burrs of the briquette detergent by rolling the briquette detergent,
A method for making a burr-free briquette detergent is disclosed.

[0003] However, in this technique, briquettes are directly produced individually from detergent particles by a roll press. Therefore, the briquettes are discharged individually without briquettes being connected by connecting portions. Large pressurization is applied, so
Briquettes are tightly compressed and have a problem of insufficient solubility in water. On the other hand, when the detergent particles are roll-pressed under gentle pressure, the briquettes are discharged from between the rolls as a primary molded body such as a sheet in a united state connected by a connecting portion. In order to roll the individual briquettes, a long rolling operation is required, and the productivity decreases.In addition, the rolling does not have a sufficient deburring effect on the briquettes. In order to obtain a briquette that does not have to be rolled for a long time, the resulting smoothness of the briquette surface becomes high, that is, the surface porosity is reduced, and the problem of reduced solubility is caused. there were.

[0004]

Accordingly, an object of the present invention is to provide a method for easily producing a briquette detergent having excellent solubility.

[0005]

Means for Solving the Problems As a result of intensive studies conducted by the present inventor to achieve the above-mentioned object, the present inventors have found that the detergent particles are compressed and a plurality of briquette portions are connected via connecting portions. Form the body first, from the primary detergent molded body,
By separating individual briquettes by crushing,
The inventors have found that the above object can be surely achieved, and have reached the present invention.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail. The method of the present invention is applied to detergent particles containing various surfactants. Preferred components of the detergent particles used in the present invention include the following. (1) Surfactant (a) Anionic surfactant Preferred anionic surfactants include, for example, straight-chain or branched-chain alkylbenzene sulfonates having an alkyl group having 8 to 16 carbon atoms, and those having 10 to 20 carbon atoms. Alkyl sulfate (AS) salt or alkenyl sulfate, having 10 to 2 carbon atoms
Α-olefin sulfonic acid (AOS) salt of 0, carbon number 1
0 to 20 alkanesulfonate, having a linear or branched alkyl or alkenyl group having 10 to 20 carbon atoms, and having an average of 0.5 to 8 mol of ethylene oxide, propylene oxide, butylene oxide or ethylene oxide / Propylene oxide = 0.1 / 9.9-9.
Alkyl ether sulfuric acid (AE) added at a ratio of 9 / 0.1
S) Salt or alkenyl ether sulfate, having 10 to 10 carbon atoms
Having 20 linear or branched alkyl or alkenyl groups, an average of 0.5 to 8 moles of ethylene oxide,
Propylene oxide, butylene oxide or ethylene oxide / propylene oxide = 0.1 / 9.9
Alkyl carboxylate or alkenyl ether carboxylate added at a ratio of の 9.9 / 0.1, alkyl polyhydric alcohol ether sulfate such as alkyl glyceryl ether sulfonic acid having 10 to 20 carbon atoms, Higher fatty acid salts having from 20 to 20 carbon atoms, saturated or unsaturated α-sulfofatty acid (α-SF) salts having 8 to 20 carbon atoms, or anionic surfactants such as methyl and ethyl, especially propyl esters, or mixtures thereof. be able to. Particularly preferred anionic surfactants include, for example, alkali metal salts of linear alkylbenzene sulfonic acid (LAS) (eg, sodium or potassium salts).
And alkali metal salts of AOS, α-SF, and AES (eg, sodium or potassium salts) and alkali metal salts of higher fatty acids (eg, sodium or potassium salts). (B) Nonionic surfactant Preferred nonionic surfactants include, for example, the following.

(I) C6 to C22, preferably C8 to C18
A polyoxyalkylene alkyl (or alkenyl) ether obtained by adding an alkylene oxide having 2 to 4 carbon atoms to the aliphatic alcohol of the formula (1) on an average of 3 to 30 mol, preferably 5 to 20 mol. Among them, polyoxyethylene alkyl (or alkenyl) ether and polyoxyethylene polyoxypropylene alkyl (or alkenyl) ether are preferable. As the aliphatic alcohol used here, a primary alcohol or a secondary alcohol is used. Further, the alkyl group may have a branched chain. As preferred aliphatic alcohols, primary alcohols are used. (ii) polyoxyethyl alkyl (or alkenyl) phenyl ether. (iii) A fatty acid alkyl ester alkoxylate represented by the following formula, in which an alkylene oxide is added between ester bonds of a long-chain fatty acid alkyl ester.

R ¹ CO (OA) n OR ² (R ¹ CO represents a fatty acid residue having 6 to 22 carbon atoms, preferably 8 to 18 carbon atoms; OA represents a fatty acid residue having 2 to 4 carbon atoms such as ethylene oxide and propylene oxide; It preferably represents an addition unit of alkylene oxide of 2 to 3. n represents an average number of added moles of alkylene oxide, and generally represents 3 to 3
0, preferably a number from 5 to 20. R ² has 1 carbon atom
Represents a lower alkyl group which may have 1 to 3 substituents. (Iv) Polyoxyethylene sorbitan fatty acid esters. (v) Polyoxyethylene sorbite fatty acid esters. (vi) Polyoxyethylene fatty acid esters. (vii) Polyoxyethylene hydrogenated castor oil.

(Viii) Glycerin fatty acid esters. Among the above nonionic surfactants, polyoxyethylene alkyl (or alkenyl) ethers having a melting point of 40 ° C. or lower and an HLB of 9 to 16, polyoxyethylene polyoxypropylene alkyl (or alkenyl) ethers, and fatty acid methyl esters containing ethylene oxide Particularly preferred are fatty acid methyl ester ethoxylates added, and fatty acid methyl ester ethoxypropoxylates obtained by adding ethylene oxide and propylene oxide to fatty acid methyl esters. Further, these nonionic surfactants may be used as a mixture. (C) Amphoteric surfactant Preferred ampholytic surfactants include, for example, imidazoline-based and amidobetaine-based amphoteric surfactants. Particularly preferred amphoteric surfactants include
For example, 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, amide amide propyl betaine and the like can be mentioned.

The above-mentioned surfactant is generally used in an amount of 10 to 60% by weight, preferably 15 to 5% by weight, based on the weight of the detergent granules.
0% by weight, particularly preferably 20 to 45% by weight. (2) Detergent builder As a detergent builder, an alkali builder or a chelate builder usually used for a detergent is preferably used. (A) As alkali builders, sodium carbonate, sodium hydrogen carbonate, potassium carbonate, potassium hydrogen carbonate,
There are alkali metal carbonates such as sodium potassium carbonate and alkali metal silicates such as sodium silicate, potassium silicate and layered sodium silicate. (B) Examples of the chelate builder include aluminosilicate, tripolyphosphate, pyrophosphate, citrate, succinate, polyacrylate, acrylic acid-maleic acid copolymer, iminocarboxylic acid / salt, EDTA, etc. There is. Detergent builders are typically 10 to 9 based on the weight of detergent granules.
0% by weight, preferably 20 to 80% by weight, particularly preferably 30 to 70% by weight.

(3) Oil-absorbing carrier The oil-absorbing carrier used in the present invention is preferably
Oil absorption is 80m as specified by JIS-K5101 test method
1/100 g or more, preferably 150 to 600 ml / 1
An oil-absorbing substance of 00 g is preferably used. As such an oil-absorbing carrier, for example, as a silicate compound, Tokusil N [manufactured by Tokuyama Co., Ltd .;
1/100 g], Nip Seal NS-K [Nippon Silica Co., Ltd., oil absorption 320 ml / 100 g], Sylysia # 310 [Fuji Silysia Chemical Ltd., oil absorption 340 m]
1/100 g], amorphous hydrous amorphous silicic acid, Sildex H-52 [manufactured by Asahi Glass Co., Ltd., oil absorption 260 ml / 1
Aerosol # 300 [manufactured by Nippon Aerosil Co., Ltd., oil absorption 350 m1]
/ 100 g], and amorphous anhydrous silicic acid, such as Florite R (manufactured by Tokuyama Corporation, oil absorption 600 ml / 100 g)
g], etc., petal-like hydrated amorphous calcium silicate, zonotrite [manufactured by Ube Chemical Co., Ltd., oil absorption 220 m1 / 100
g], etc., acicular hydrated amorphous calcium silicate, amorphous aluminosilicate [manufactured by Mizusawa Chemical Co., Ltd., oil absorption 170 ml / 1
00g], magnesium silicate [oil absorption 180ml / 10
0g]. As a carbonate compound, magnesium carbonate [manufactured by Tokuyama Corporation, oil absorption amount 150 ml / 1
00g], calcium carbonate (manufactured by Shiroishi Kogyo Co., Ltd., oil absorption 110ml / 100g), and as other compounds, ultrafine spinel [manufactured by Sumitomo Cement Co., Ltd., oil absorption 600m
1/100 g], ultrafine particle cordierite [manufactured by Sumitomo Cement Co., Ltd., oil absorption 600 ml / 100 g], ultrafine particle mullite [manufactured by Sumitomo Cement Co., oil absorption 560 ml]
/ 100 g], modified starch Pineflow-S [manufactured by Matsutani Chemical Co., Ltd., oil absorption amount 130 m1 / 100 g] and the like. These oil absorbing carriers may be used as a mixture. Oil-absorbing carriers are usually based on the weight of detergent granules,
The content is 0.1 to 25% by weight, preferably 0.5 to 20% by weight, particularly preferably 1 to 15% by weight.

(4) Clay mineral The clay mineral used as the detergent component of the present invention includes:
In particular, those belonging to the smectite group and having a crystal structure of a dioctahedral three-layer structure or a trioctahedral three-layer structure are preferable. The clay mineral which can be preferably used as the detergent component of the present invention preferably has an oil absorption of 80 ml.
/ 100g, more preferably 30-70ml / 10
It is 0 g and the bulk density is preferably 0.1 g / ml or more, particularly preferably 0.2 to 1.5 g / ml. Specific examples of such clay minerals include, for example, montmorillonite (oil absorption: 50 m1 / 100 g, bulk density: 0.3 g / ml), nontronite (oil absorption: 40m1 / 100g, bulk density:
0.5g / ml), beidelite (oil absorption: 62m1 / 10
0 g, bulk density: 0.55 g / ml), pyrophyllite (oil absorption: 70 m1 / 100 g, bulk density: 0.63 g / ml), etc. On the other hand, clay having a trioctahedral type three-layer structure Saponite (oil absorption: 73 m1 /
100 g, bulk density: 0.15 g / ml), hectorite (oil absorption: 72 m1 / 100 g, bulk density: 0.7 g / ml), stevensite (oil absorption: 30 m1 / 100 g, bulk density 1.2 g / ml) , Talc (oil absorption: 70m1 / 100g,
Bulk density: 0.1 g / ml). Clay minerals
Usually 0.1 to 30% by weight, based on the weight of the detergent granules,
Preferably from 0.5 to 20% by weight, particularly preferably from 1 to 1%.
0% by weight is contained. The raw material components (1) to (4) may be mixed with a slurry and then spray-dried to form a dry powder. The following are shown as specific examples of the components blended in the other detergents.

(5) Fluorescent agents: bis (triazinylamino) stilbene disulfonic acid derivatives, bis (sulfostyryl) biphenyl salts [Tinopearl CBS] and the like. (6) Enzymes: lipase, protease, cellulase, amylase and the like. (7) Bleaching agents: percarbonates, perborates, etc. (8) Antistatic agents: cationic surfactants such as dialkyl-type quaternary ammonium salts. (9) Surface modifier: fine calcium carbonate, fine zeolite, polyethylene glycol and the like. (10) Anti-redeposition agent: cellulose derivatives such as carboxymethyl cellulose. (11) Extenders: sodium sulfate, potassium sulfate, sodium hydrochloride and the like. (12) Reducing agents: sodium sulfite, potassium sulfite and the like. (13) Fragrances (14) Pigments (15) Softener The enzymes, bleaching agents and softeners are usually used in the form of particles.

In the method of the present invention, before the detergent granules are compression-molded, a dissolution accelerator for promoting the disintegration and solubility of the briquette after compression molding, particularly a granular dissolution accelerator, is mixed. Is preferred. As preferred dissolution promoters, those described in JP-A-7-286199 can be used as appropriate. Such dissolution promoters include, for example, potassium carbonate, inorganic ammonium salts such as ammonium sulfate and ammonium chloride, sodium benzoate, sodium benzenesulfonate, sodium p-toluenesulfonate, sodium xylenesulfonate, sodium chloride, citrate Water-soluble substances such as acids, D-glucose, urea, and sucrose are exemplified.

Further, as a dissolution accelerator used in the present invention,
In addition, a swellable water-insoluble substance is also preferable. In particular,
Powdered cellulose, crystalline cellulose, low etherification carboxymethyl cellulose, cross-linked carboxymethyl cellulose, carboxymethyl cellulose calcium,
Cellulose derivatives such as hydroxypropyl cellulose,
Examples thereof include starch such as corn starch, starch derivatives such as hydroxypropyl starch, crosslinked polyvinylpyrrolidone, polyvinyl alcohol having a low degree of etherification, and the like. These are also preferably granulated beforehand, and particularly preferably those having an average particle diameter of 200 to 1500 μm. The dissolution promoter is usually 1 to 50% by weight, preferably 5 to 30% by weight, based on the weight of the detergent granules before compression molding.
Suitably, it is in an amount of weight percent. The method for producing the detergent particles used in the present invention is not particularly limited.
Detergent particles may be granulated by any granulation method, for example, kneading and crushing granulation method, stirring granulation method, tumbling granulation method, fluidized bed granulation method, extrusion granulation method and the like Various granulation methods are mentioned. These granulation methods themselves are obvious to those skilled in the art.

In the present invention, the above-mentioned detergent particles are compression-molded by a roll press method into a primary detergent molded body in which a plurality of briquette portions are connected via connecting portions. The roll pressing method is already known, and a briquetting machine used in the method is also known, and is easily available or available to those skilled in the art. A briquetting machine generally has a pair of rolls which are formed at predetermined positions on the outer periphery of the corresponding rolls so as to form a briquette portion having a desired shape and rotate counterclockwise at the same speed. Also,
Briquetting machines having a feeder with a hopper and a feed screw for supplying the detergent composition to the clearance formed between the rolls are particularly suitable.
In using a briquetting machine with a feeder,
The detergent composition is inserted into the clearance from the entrance of the clearance through the feeder by using the pressing force of the feed screw, and the primary detergent molded body is discharged from the exit on the side opposite to the feeder side. In the present invention, by providing a predetermined clearance between a pair of rolls and keeping the pressure lower than that of a conventional roll, a primary molded body (for example, a sheet-shaped body) in which a plurality of briquette portions are connected via a connecting portion. ) To improve the solubility of the resulting briquettes.

The temperature of the pair of rolls is usually 70 ° C. or less,
Preferably, the temperature is 50 ° C. or lower, but particularly when the detergent composition contains an enzyme, it is important that the temperature be such that the enzyme is hardly deactivated during roll pressing.
The rotation speed of the roll is, for example, 0.01 to 1.5 m / s, preferably 0.05 to 0.8 m / s, as the peripheral speed of the roll surface. In the primary detergent molded body, the connecting portion has a substantially uniform thickness, and connects the briquettes formed by the shapes of the recesses of the pair of rolls in a one-dimensional direction or a two-dimensional direction (in a planar manner). The primary molded body is usually discharged in a sheet shape and varies depending on the size of the briquette portion. For example, several to several tens of briquettes are arranged in one row, and several tens to several hundreds of briquettes are arranged in one row. Although they are in the form of a sheet connected to each other by a connecting portion, in some cases, they may be connected for a long time until immediately before being put into a crusher.

The shape of the briquette portion is arbitrary and is determined in consideration of the convenience of handling by the user. As the shape of the briquette portion, for example, a spherical or elliptical spherical shape, or a sheet surface vertical projection image is a circle or an ellipse, but a sheet surface horizontal projection image is an elliptical or an almond-shaped flat spherical shape. Flat elliptical sphere, or
The vertical projection image on the sheet surface is a square or a rectangle, while the horizontal projection image on the sheet surface is a circular cylinder or a vertical projection image on the sheet surface is a square or a rectangle, but the horizontal projection image on the sheet surface is a square or a rectangle. Is a flat cylindrical shape having an elliptical or almond shape. When the projected image in the direction perpendicular to the sheet surface is circular or elliptical, for example, the diameter (the major axis in the elliptical shape) is 2 to 40 mm, preferably 3 to 20 mm.
Are preferred. Examples of a square or rectangular image projected in the sheet surface vertical direction include those having a side (long side in a rectangle) of 2 to 40 mm, preferably 3 to 20 mm. The thickness of the briquette portion (the length of the briquette portion in the direction perpendicular to the sheet surface) is, for example, 2 to 40 mm,
Preferably, it is 3 to 20 mm.

The clearance between the pair of rolls is, for example, 0.05 to 2 mm, preferably 0.1 to 1 mm. In this case, the thickness of the connection portion is usually the same thickness as the width of the clearance, but a briquette machine of a type in which the roll is retracted according to the molding pressure during the roll press and the clearance is widened can also be preferably used, This is not the case in this case. The shortest distance between briquettes is
For example, it is 0.05 to 5 mm, usually 0.1 to 3 mm. The primary detergent molded product thus obtained is then subjected to a crushing step. Here, “crushing” is an operation of applying an external force to the connection portion to separate the briquette portion from the primary detergent molded body individually, and preferably substantially remove the burr of the briquette portion. In the crushing step, the type of the crusher used in the crushing step is not particularly limited as long as the briquette portions are individually separated from the primary detergent molded body and burrs are removed. A preferred crusher is a crusher equipped with a rotating blade, and a hammer mill type is particularly suitable. Examples of such a crusher include Fitzmill (manufactured by Hosokawa Micron Corporation) and Fezamil (manufactured by Hosokawa Micron Corporation)
), A speed mill (manufactured by Okada Seiko Co., Ltd.), a comminutor (manufactured by Fuji Paudal Co., Ltd.) and the like.

In the crusher, the peripheral speed of the tip of the blade is generally 0.4 to 15 m / s, preferably 1 to 1 m / s.
0 m / s is mentioned as a suitable thing. If the tip peripheral speed exceeds 15 m / s, the briquette portion is easily broken, which is not preferable. On the other hand, the tip peripheral speed is 0.4 m / s
If it is less than 1, it becomes difficult to separate the briquette portion from the primary molded body, which is not preferable. In the crushing step, crushing is, for example, 70 ° C. or less, preferably 50 ° C. or less, especially when the detergent composition contains an enzyme,
It is important that the temperature be such that the enzyme is hardly deactivated during the disintegration process. The average residence time in the crusher is, for example, 20 seconds or less, preferably 10 seconds or less.

In order to further improve the appearance of the briquette detergent product, in order to remove burrs on the briquette portion remaining after the crushing, a rolling sizing machine such as a marmelizer (Fuji Paudal Co., Ltd.) is used. May be processed. However, it is preferable to perform the treatment for a minimum time such that the surface of the obtained briquette detergent does not become smooth. In the crushing step, since a briquette portion and a crushing residue are generated, the crushing residue is removed, and the briquette portion is collected as a briquette detergent. The crushed residue is collected and reused as a detergent composition raw material in the method of the present invention.
The briquette detergent thus obtained has a bulk density of 0.7
1.61.6 g / ml, usually 0.8-1.4 g / ml.

[0022]

Hereinafter, the present invention will be described in more detail with reference to Reference Examples, Examples and Comparative Examples.
It is not limited in any way by these examples. Reference Example 1 (Production Example of Primary Molded Article) Detergent particles having the composition shown in Table 1 below were prepared.

[0023]

[Table 1] Detergent particles were prepared as follows. After preparing a slurry in which components other than the nonionic surfactant, 1.8% equivalent of zeolite and 8% equivalent of sodium carbonate in Table 1 are dissolved or dispersed in water, the slurry is spray-dried and dried. Particles were obtained. Along with the dried particles, a nonionic surfactant and water are continuously kneaded (made by Kurimoto Iron Works,
KRC-S4), kneaded, and extruded to form a solid detergent. Next, 8% equivalent of fine powder of sodium carbonate as a grinding aid was added to the obtained solid detergent, and Fitzmill (manufactured by Hosokawa Micron Corporation, D
Using KASO-6), pulverization was carried out so that the average particle diameter became 800 μm. Finally, zeolite 1.8 in the rolling drum
%, And coated to obtain detergent particles (average particle size).
800 μm, bulk density 0.85 g / ml).

The detergent granules are classified using a JIS 12 mesh sieve (1410 μm mesh) and a JIS 32 mesh sieve (500 mm mesh), and particles that pass through the 12 mesh sieve but do not pass through the 32 mesh (particle size 500 to 500 μm). 1410μ
m). To the detergent particles after the classification, citric acid monohydrate was added as a dissolution accelerator so as to have a concentration of 30%, and the mixture was uniformly mixed. This mixture was fed through a feeder (rotational speed of a feed screw of 30 rpm) of a briquette machine (type CS-25 manufactured by Hosokawa Micron Corporation) to the inlet of a clearance (0.1 mm) between a pair of rolls, and the number of rotations of the roll was 30 rpm ( Roll pressing was performed at a roll surface peripheral speed of 0.41 m / s) to obtain a sheet-shaped primary detergent molded product A in which flat elliptical spherical briquettes having a height of 4.5 mm and a long diameter of 6 mm were connected by a connecting portion having a thickness of 0.4 mm. (Product capacity 170 kg / h).

Reference Example 2 (Example of producing a primary molded article) Detergent particles having the composition shown in Table 2 below were prepared.

Table 2 Table 2 Formulation components (%) Nonionic surfactant 30 Sodium carbonate 23 Potassium carbonate 3 Zeolite 20 Copolymer salt of acrylic acid and maleic acid 4 White carbon 4 Montmorillonite 6 Sodium sulfite 0.2 Fluorescent agent 0.3 Water and other small components remaining amount 100.00

The detergent particles were prepared as follows. All the raw materials except for the nonionic surfactant and the zeolite equivalent to 5% were charged into a Lodige mixer (M20, manufactured by Matsubo Co., Ltd., M20 type) (filling ratio: 50%) so that the composition shown in Table 2 was obtained. , Spindle (200rpm) and chopper (600
(0 rpm). Thirty seconds after the start of stirring, the entire amount of the nonionic surfactant was added in 5 minutes, and thereafter, stirring and granulation was continued until the average particle size became 800 μm.
Finally, 5% equivalent of zeolite is added and stirred for 30 seconds.
Detergent particles (average particle size 800 μm, bulk density 0.89 g / ml) were obtained. The detergent particles are screened with a JIS 12 mesh sieve (mesh 14
10μm) and JIS32 mesh sieve (mesh opening 500μm)
The particles were passed through a 12-mesh sieve and particles not passing through 32 mesh (particle size: 500 to 1410 μm) were obtained.
Citric acid 1 is used as a dissolution accelerator in the detergent particles after classification.
The hydrate was added to 30% and mixed uniformly.
This mixture was used in the same manner as in Reference Example 1 to obtain a primary detergent molded body B. Example 1 A 4 kg primary detergent molded product A was prepared by using a feather mill (FM) manufactured by Hosokawa Micron Corporation equipped with a screen having a hole diameter of 10 mmφ.
-1S type) and rotation speed 600rpm (tip peripheral speed 8.17 m / s)
At the same time, the burr was removed, and the briquette detergent was recovered. Example 2 4 kg of the primary detergent molded product A was treated with a feather mill (FM) manufactured by Hosokawa Micron Corporation equipped with a screen having a hole diameter of 10 mmφ.
-1S type) and rotation speed 600rpm (tip peripheral speed 8.17 m / s)
At the same time, burrs are removed at the same time as the crushing, and the crushed briquette is made by Fuji Paudal Co., Ltd. with a quince (QJ-400) having grid-shaped grooves (3 mm intervals) formed on the surface of the rotating disk.
And then tumbled at 1000 rpm for 1 minute to further remove burrs and recover the briquette detergent. Example 3 4 kg of the primary detergent molded product A was crushed with a feather mill (model FM-1M) manufactured by Hosokawa Micron Corporation at a rotation speed of 200 rpm (tip peripheral speed 2.72 m / s) without a screen, and at the same time, burrs were formed. Is removed, and the crushed briquettes are fed to Fuji Paudal Co., Ltd. Malmizer (QJ-400 type) having lattice-shaped grooves (3 mm intervals) formed on the surface of the rotating disk at a rotation speed of 1000 rpm. Rolled for 1 minute to further remove burrs and recover briquette detergent. Example 4 4 kg of the primary detergent molded product B was treated with a feather mill (FM) manufactured by Hosokawa Micron Corporation equipped with a screen having a hole diameter of 10 mmφ.
-1S type) and rotation speed 600rpm (tip peripheral speed 8.17 m / s)
The burrs are removed at the same time as crushing with a crusher, and the crushed briquette portion is made with a Fuji Paudal Co., Ltd. marmulizer (QJ-) in which lattice-shaped grooves (3 mm intervals) are formed on the surface of the rotating disk.
(Type 400) and tumbled at 1000 rpm for 1 minute to further remove burrs and recover the briquette detergent. Comparative Example 1 A 4 kg primary detergent molded product A was not disintegrated, and a flawless groove (3 mm intervals) was formed on the surface of the rotating disk by Fuji Paudal Co., Ltd., a marmalizer (QJ-400). And tumbled at 1000 rpm for 5 minutes to remove burrs and then recover the briquette detergent. Briquette process evaluation Briquette detergent is gently classified with a sieve with an aperture of 6.7 mm,
The percentage of briquettes that did not pass through the sieve (a plurality of coalesced briquettes) was calculated by Equation 1 below. Formula 1 Residual rate of coal briquette (%) = (Amount of briquette not passing through sieve with 6.7 mm aperture (kg)) / (Total briquette fed to sieve (kg)) × 100 Solubility test of briquette detergent Tap water at a predetermined temperature was put into a 3000 ml beaker, 25 g of a briquette detergent was added, and the mixture was stirred for 10 minutes. Next, the detergent particles remaining undissolved are taken out on a nylon cloth and placed at 105 ° C.
For 2 hours, and the dissolved residue was calculated by the following equation 2, and evaluated by the following criteria. Formula 2 dissolution residue (%) = {(dissolution residue at 105 ° C. for 2 hours, dried product (g) / 25 g)} × 100 Evaluation: ：: 0% ≦ dissolution residue <1% ○: 1% ≦ dissolution residue <5 % Δ: 5% ≦ dissolution residue <10% ×: 10% ≦ dissolution residue

[0027]

Table 3 Evaluation results Example 1 Example 2 Example 3 Example 4 Comparative example 1 Union Briquette After crushing 00 23.70-Residual rate After rolling and sizing-0.201 15.7 (%) dissolution After crushing ◎ ◎ ◎ ◎ − After rolling and sizing − ○ ○ ○ ×

[0028]

According to the present invention, a briquette detergent excellent in solubility can be easily produced.

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Inozuka 1-3-7 Honjo, Sumida-ku, Tokyo F-term in Lion Corporation (reference) 4H003 AB03 AB15 AB19 AC01 BA17 CA08 CA11 CA12 EA12 EA15 EA16 EA28 FA32

Claims (1)

[Claims] 1. A method for producing a briquette detergent, comprising the following steps: (1) a step of compressing detergent particles to form a primary detergent molded article in which a plurality of briquette portions are connected via a connecting portion. (2) a step of crushing the primary detergent molded article to separate individual briquettes from the connecting portion, and (3) a step of collecting the briquettes as a briquette detergent.