JP2644038B2 - Detergent composition and method for producing the same - Google Patents

Detergent composition and method for producing the same

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Publication number
JP2644038B2
JP2644038B2 JP1111946A JP11194689A JP2644038B2 JP 2644038 B2 JP2644038 B2 JP 2644038B2 JP 1111946 A JP1111946 A JP 1111946A JP 11194689 A JP11194689 A JP 11194689A JP 2644038 B2 JP2644038 B2 JP 2644038B2
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Prior art keywords
sodium
weight
method
granulation
starting material
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JP1111946A
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JPH0241399A (en
Inventor
テイマシ・ジヨン・プライス
ドナルド・ピーター
ピーター・ジヨン・ラツセル
マイケル・ウイリアム・ホリングスワース
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ユニリーバー・ナームローゼ・ベンノートシヤープ
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Priority to GB888817386A priority Critical patent/GB8817386D0/en
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    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02Inorganic compounds ; Elemental compounds
    • C11D3/12Water-insoluble compounds
    • C11D3/124Silicon containing, e.g. silica, silex, quartz, glass beads
    • C11D3/1246Silicates, e.g. diatomaceous earth
    • C11D3/128Aluminium silicates, e.g. zeolites
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02Inorganic compounds ; Elemental compounds
    • C11D3/04Water-soluble compounds
    • C11D3/10Carbonates ; Bicarbonates
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D11/00Special methods for preparing compositions containing mixtures of detergents ; Methods for using cleaning compositions
    • C11D11/04Special methods for preparing compositions containing mixtures of detergents ; Methods for using cleaning compositions by chemical means, e.g. by sulfonating in the presence of other compounding ingredients followed by neutralising
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00Detergent materials characterised by their shape or physical properties
    • C11D17/06Powder; Flakes; Free-flowing mixtures; Sheets
    • C11D17/065High-density particulate detergent compositions

Description

The present invention relates to a high bulk density granular detergent composition having good cleaning performance and good powder properties, and a method for producing the same.

BACKGROUND OF THE INVENTION In recent years, there has been considerable interest in the detergent industry in producing detergent powders having relatively high bulk densities (eg, 600 g / or more). Particular attention has been paid to densifying the spray-dried powder by post-treatment. EP
No. 219 328A (Unilever) spray-drys the slurry to produce a base powder containing low to medium levels of sodium tripolyphosphate builder and low levels of inorganic salts,
A granular material produced by subsequently charging a solid material including sodium sulfate having a high bulk density and a particle size smaller than the base powder to fill the voids between the base powder particles and produce a high bulk density product. Discloses low phosphate detergent compositions.

JP 61-069897A (Kao) discloses that a spray-drying agent powder containing a high level of an anionic surfactant and a low level of a builder (zeolite) is successively powdered and granulated by a high-speed mixer / granulator. A method is disclosed in which the granulation is carried out in the presence of a "substance for improving surface properties" and, if necessary, a binder. In high-speed mixers / granulators, the spray-dried powder is first ground to a finely divided state, then a surface enhancer and, if necessary, a binder are added, and the powdered material is granulated to obtain a high bulk density. It seems to form the final product. To prevent the composition from forming large balls or cakes, a surface improver, which is a finely divided particulate solid such as, for example, finely divided sodium aluminosilicate, is clearly needed.

EP 229 671A (Kao) is based on a spray-dried base powder prepared as in JP 61-069897A (Kao) above and containing a limited amount of water-soluble crystalline inorganic salts, for example with crystals such as sodium carbonate. It discloses the post-administration of an alkaline inorganic salt to produce a high bulk density product.

GB 1 517 713 (Unilever Corporation) describes a method of densifying and spheroidizing a spray-dried or granulated detergent powder containing sodium tripolyphosphate and sodium sulfate using a “Malmerizer” (registered trademark). Has been disclosed.

GB 1 453 697 (Unilever) discloses the use of the same equipment to granulate the detergent powder components together in the presence of a liquid binder to form a granular detergent composition. The "malmerizer" comprises a substantially horizontal, roughened rotatable table located at the bottom and inside a cylinder having a substantially vertical smooth wall. A disadvantage associated with that device is that it produces a powder or particles having a relatively wide particle size distribution and especially containing a relatively high proportion of oversized particles. Products of this type exhibit poor dissolving and dispersing properties, especially in low-temperature, short-time machine washing, such as those used in washing machines in Japan and other Far Eastern countries. This, as will be apparent to the consumer, becomes a deposit on the laundry fabric and results in a high level of waste in machine washing.

EP 22 024A (Procter & Gamble)
Discloses mixing a spray-dried detergent powder containing a high level (30-85% by weight) of an anionic surfactant with an inorganic builder (sodium tripolyphosphate or sodium aluminate and sodium carbonate) and a roll press ( A "tilsonator") under high pressure to remove oversized material and fines and then granulate the compressed material by means of conventional equipment such as, for example, fluidized beds, tumble mixers or rotating drums or pans. Is disclosed.

EP 158 419A (Hashimura) discloses a high-speed mixer / granulator which comprises a high proportion (preferably 70-85% by weight of the mixture) of soda ash and a small proportion of a surfactant (whole or predominantly non-ionic). It discloses mixing to produce a detergent powder.

This time, a spray-dried powder containing a water soluble crystalline inorganic salt including medium or high levels of sodium tripolyphosphate and / or sodium carbonate is pulverized, if necessary, and then granulated with a high-speed mixer / granulator. It has been found that "materials that enhance surface properties" or similar powdering agents are not required even when high levels of anionic surfactant are present.

[Summary of the Invention] The present invention relates to the production of a granular detergent composition or component having a bulk density of at least 650 g /
70% by weight of a non-soap detergent active, and (b) at least 15%
% By weight of a water soluble crystalline inorganic salt, including sodium tripolyphosphate and / or sodium carbonate, comprising at least 0.4: 1 by weight of components (b) and (a) and optionally up to 100% by weight. A granular starting material containing other detergent components is treated with a high-speed mixer / granulator having both a stirring action and a cutting action in the absence of fine particulate matter for improving surface properties. And a method for producing a detergent composition, comprising granulating and densifying to a bulk density of at least 650 g /.

The present invention relates to a method for producing a detergent powder that combines high bulk density and good powder properties with excellent washing and washing performance.

The present invention relates to a detergent base powder made by any suitable method and containing a significant amount of water-soluble crystalline inorganic salts, comprising LP61-0.
No need to use “materials that improve surface properties” during the granulation process as disclosed by No. 69897A (Kao), but with relatively high amounts of anionic It has been found that dense particles with good flow properties can be produced even in the presence of a surfactant. This product is characterized by a particularly narrow particle size distribution, giving a good and rapid cold water dispersibility and a low insoluble material, especially characterized by a very small proportion of oversized material.

Starting PowderSuitable starting powders are 0.4: 1 to 5.83: 1, more preferably 0.
It has a ratio of total water-soluble crystalline inorganic salt (b) to total non-soap surfactant (a) ranging from 4: 1 to 5: 1. Particularly preferably, the ratio of (b) to (a) is in the range from 1: 1 to 5: 1.

The starting powder contains a total of 15 to 70% by weight of a water-soluble crystalline inorganic salt. In addition to sodium tripolyphosphate and sodium carbonate, examples of salts of this type are sodium sulphate, ortho and sodium pillow phosphates and their crystalline sodium silicates, ie sodium silicates having a ratio (SiO 2 to Na 2 O) of 1, for example ortho ortho Includes sodium silicate and sodium metasilicate. Alkaline and neutral silicates with high ratios commonly used in detergent compositions cannot be considered crystalline.

According to the invention, the starting powder contains 15 to 50% by weight, more preferably 20 to 40% by weight, of sodium tripolyphosphate.

The non-soap surfactant present in the starting powder preferably consists at least partially of an anionic surfactant. Suitable anionic surfactants are well known to those skilled in the art, and include linear alkyl benzene sulfonates, especially C 8 to
Sodium linear alkylbenzene sulfonate having an alkyl chain length of C 15; first and second alkyl sulfates, especially C 12 -C 15 primary alcohol sodium sulfate; alkyl ether sulfates; alpha-olefins and internal olefin sulphonates; alk Sulfonates: dialkyl sulfosuccinates; fatty acid ester sulfonates; and combinations thereof.

If desired, the starting powder can also contain a nonionic surfactant. Nonionic surface active agents also are well known to those skilled in the art, the first and second Al-coated ethoxylates, C 12 -C 15 first is particularly ethoxylated with an average of 3 to 20 moles of ethylene oxide per mole of alcohol Includes primary and secondary alcohols.

Suitably, the surfactant component of the starting powder comprises from 0 to 70% by weight, preferably from 8 to 60% by weight, of an anionic surfactant and from 0 to 20% by weight, preferably from 0 to 10% by weight of nonionic And a surface active agent.

If desired, other types of non-soap surfactants can be present, such as, for example, cationic, zwitterionic, zwitterionic or semipolar surfactants. Many suitable detergent active compounds are available and are well described in the literature, such as "Surfactants and Detergents" by Schwartz, Perry and Birch, Volumes I and II.

If desired, soap can also be present to provide foam control and also provide detergent properties and builder power. Soap is not included in the 12-70% indicated for surfactant content above.

The starting powder can be prepared by any suitable tower or non-tower method, such as spray drying or dry mixing. The invention is particularly advantageous for the densification of spray-dried powders.

If desired, at least part of the water-soluble crystalline inorganic salt to be included in the final product can be mixed with the remainder of the starting powder in the high-speed mixer / granulator itself. In this embodiment of the invention, the ratios and ratios should be numerical for all materials including additional salts introduced into the high speed mixer / granulator.

Thus, for example, a starting powder made by spray drying and containing less than the above amount of water-soluble crystalline inorganic salt is introduced into a high-speed mixer / granulator and the powder is then added to this powder in a high-speed mixer / granulator with a salt ratio (b). It is also within the scope of the present invention to mix a water soluble crystalline inorganic salt in an amount sufficient to bring the ratio (b) to (a) to the above level.

Similarly, it is within the scope of the present invention to add a surfactant (actually all other components) to the high speed mixer / granulator, as long as the final composition is as described above. It is assumed that the added component is not a fine “substance improving surface properties” as described in JP 61-069897A (Kao). That is, in the method of the present invention, all components other than a fine granular solid having a particle size of less than 100 μm can be added to the high speed mixer / granulator before granulation.

One approach according to the present invention involves mixing at least one inorganic or organic salt having a particle size of at least 100 μm with the remainder of the starting powder in a high speed mixer / granulator. If the salt is water-soluble mineral and crystalline, it should be included in the above ratios and ratios for the total amount of such salts in the material in the granulation in a high speed mixer / granulator.

Salts that can be conveniently incorporated by this method include borax, sodium bicarbonate, sodium silicate, sodium tripolyphosphate, sodium carbonate, sodium perborate, sodium percarbonate, sodium citrate, sodium nitrilotriacetate, sodium succinate, sodium sulfate and These combinations are included. These salts can provide various advantages. For example, borax and sodium bicarbonate are buffers that provide a mild product with a low wash pH.

Process In the method of the present invention, granulation is performed using a high-speed mixer / granulator having both a stirring action and a cutting action. Preferably, the stirrer and the cutter can be operated independently of each other at different variable speeds. This type of mixer may combine high energy agitation input with a cutting action, but may also be used to provide other mild agitation processes with or without operation of the cutter. Thus, it is a very capable and flexible part of the device.

A high speed mixer / granulator of the type suitable for use in the method of the present invention is of the ball type and preferably has a substantially vertical stirrer axis. Particularly preferred is a mixer of the Fukae (registered trademark) FS-G series manufactured by Fukae Pautech Industrial Co., Ltd. (Japan). The device is in the form of a substantially bowl-shaped container accessible via a top port, with a stirrer having a substantially vertical axis near the bottom, and a cutter positioned on the side wall. The stirrer and the cutter can be operated independently of each other at different variable speeds.

Other similar mixers which have been found to be suitable for use in the method of the invention are the Diosna (R) V series by Jielks & Sene, West Germany;
It is Pharma Matrix (registered trademark) of K. Fielder Limited. Other similar mixers that may be suitable for use in the method of the present invention include Fuji® VG-C series from Fuji Industrial Company of Japan; and a lottery of Zanchetta & Company Srl of Italy. (Registered trademark).

Another mixer which has been found to be suitable for use in the method of the present invention is a batch mixer from Regige® FM Series from Morton Machine Company Limited, Scotland. This differs from the above mixer in that the stirrer has a horizontal axis.

As mentioned above, the use of a high speed mixer / granulator is essential to the method of the present invention for performing granulation and densification. If desired, a mixer can be used as a pre-treatment step prior to performing the granulation.

For example, as described above, it is within the scope of the present invention to mix one or more other ingredients with a separately prepared premix powder (eg, by spray drying). Suitable stirring / cutting operations and residence times can be selected depending on the materials to be mixed.

Another possible pretreatment that can be performed in high-speed mixers / granulators is pulverization, the need of which depends in particular on the method of preparation of the starting powder and its free moisture content. For example, powders made by spray drying
It may require more powdering than powders made by dry blending. Again, the flexibility of the device allows the selection of a suitable stirring / cutting operation. Generally, relatively high speeds are generally selected for both the stirrer and the cutter. Relatively short residence times (e.g. 2-4 minutes per 35 kg batch) are generally sufficient.

An essential feature of the method according to the invention is the granulation step, at least 650 g /, preferably at least 700 g /
Is to give a dense granular product having a very uniform particle size and a generally spherical particle shape.

Granulation is achieved by operating the mixer at a relatively high speed using a stirrer and cutter. Relatively short residence times (5 to 8 minutes per 35 kg batch) are generally sufficient. The final bulk density can be adjusted by the choice of residence time, and the powder properties of the resulting particles have been found to be sub-optimal unless the bulk density is increased to at least 650 g /.

Successful granulation requires the presence of a liquid binder. Preferably, the amount of binder added does not exceed that required to provide a free water content of about 6% by weight or more to the composition. This is because higher amounts can lead to a reduction in the flow properties of the final particles. If necessary, a binder (preferably water) can be added before or during granulation, but the starting powder contains essentially sufficient moisture. If a liquid binder is added, it can be sprayed while the mixer is running. In one preferred mode of operation,
First, the binder is added while operating the mixer at a relatively low speed, and then the speed of the mixer is increased to effect granulation.

If the starting powder contains sufficient free moisture content such that the addition of a binder is not required, pulverization (if necessary) and granulation need not be viewed as separate steps, but are a single operation. In fact, in this case it is not necessary to determine in advance whether powdering is required. This can be done simply by the mixer. Since the required mixer conditions are generally about the same for powdering and granulation.

According to a preferred embodiment of the present invention, the granulation is performed at a controlled temperature slightly above room temperature, preferably above 30 ° C.
The optimum temperature is obviously composition dependent, but is generally 30-45
It appears to be in the range of ° C, preferably about 35 ° C.

An essential feature of the present invention is that, during granulation, the above JP 61-069
No "substance improving surface properties" as disclosed in No. 897A (Kao). When a composition having a relatively high ratio of aluminosilicate builder to surfactant is treated according to the present invention, the use of fine particulate matter such as fine sodium aluminosilicate during the granulation step is unnecessary. Not only does it make granulation more difficult or even impossible for certain compositions.

Suitable Flow Aids According to a preferred embodiment of the present invention, fine and granular flow aids can be mixed with the particulate material after granulation is complete. Advantageously, the flow aid is characterized in that the granulate is a high-speed mixer /
Add while still in the granulator and operate the mixer at low speed for a shorter time. No granulation occurs in this step. Further, it is within the scope of the present invention to add a particulate aid to the granules after removing the granules to a different device.

This embodiment of the present invention differs from the above JP 61-06989 in that no "materials improving surface properties" which can be fine sodium aluminosilicate are present in the granulation process itself.
It should be distinguished from the conventional method of 7A (Kao). It is also within the scope of the present invention to add a granular flow aid after granulation is complete, but as described above, do not allow the fine and granular `` substance improving material '' to exist during granulation. Are essential to the present invention. The addition of flow aids after granulation is complete has a further advantageous effect on the properties of the granules, irrespective of the composition, whereas the addition of such substances in the granulation step of the process according to the invention Presence makes processing more difficult.

In addition, a suitable granulation temperature of 30-45 ° C., preferably about 35 ° C., can be maintained during the subsequent mixing of the flow aid.

Flow aids are fine particulate matter. Suitable average particle size is 0.1-20 μm, more preferably 1-10 μm.

According to one preferred embodiment of the invention, the flow aid is a finely divided amorphous sodium aluminosilicate as described in the applicant's co-pending application. Suitable substances are Crossfield, Chesaiya, Warrington, UK
Commercially available from Chemicals Limited under the trademark Asil. This substance is effective in improving the flow characteristics even in a very small amount, and also has the effect of increasing the bulk density. Therefore, the bulk density can be adjusted by appropriately selecting the amount of amorphous sodium aluminosilicate added after granulation.

The amorphous sodium aluminosilicate is advantageously present in an amount of from 0.2 to 5.0% by weight, more preferably from 0.5 to 3.0% by weight, based on the starting powder.
Used in quantity.

Another suitable flow aid is finely divided crystalline sodium aluminosilicate. The crystalline aluminosilicate described above for the builder is also suitable for use as a flow aid. However, they are less effective on a weight basis than amorphous materials, preferably 3.0-12.0% by weight, more preferably
Used in amounts of 4.0 to 10.0% by weight.

If desired, both crystalline and amorphous sodium aluminosilicates can be used together and sequentially as flow aids.

Other flow aids suitable for use in the process of the present invention are precipitated silicas (eg, Neosil®), as well as precipitated calcium silicates (eg, Microcal®)
And both are commercially available from Crossfield Chemicals Limited, Warrington, Cheshire, United Kingdom.

Final granules The final granules have a bulk density of at least 650 g /, preferably at least 700 g /. Furthermore, it is characterized by a particularly low particle porosity, preferably not exceeding 0.25, more preferably not exceeding 0.20, which can be distinguished from even the finest powders produced only by spray drying. it can.

The final granulate can itself be used as a finished detergent composition. Alternatively, it can be mixed with other components or mixtures that are manufactured separately and can constitute a major or minor portion of the final product. Generally, any other ingredients that are not suitable for undergoing the granulation and pre-steps, such as enzymes, bleaches, perfumes, etc., can be mixed into the granulate to make the final product.

In one preferred embodiment of the invention, the detergent base powder is made, for example, by spray drying a non-thermosensitive and compatible aqueous component slurry. If desired, the other ingredients can then be mixed as described above. further,
The powder obtained is densified and granulated according to the method of the invention. If desired, further ingredients can be mixed after granulation. The densified granules can typically make up 40 to 100% by weight of the final component.

In another embodiment of the present invention, the densified granules produced according to the present invention are "adjuncts" containing relatively high amounts of detergent actives on inorganic carriers, which are small amounts of other components. To obtain the final product.

EXAMPLES The present invention will be further described by way of the following non-limiting examples, in which parts and percentages are by weight unless otherwise specified.

EXAMPLES In the following examples, the following symbols are used: LAS: sodium linear alkyl benzene sulfonate NI: nonionic surfactant (ethoxylated alcohol) NSD: all non-soap detergent STP: sodium tripolyphosphate carbonate: Sodium carbonate Sulfate: Sodium sulfate Silicate: Alkaline sodium silicate g: Good ALU: Alsil (registered trademark) N, that is, fine amorphous sodium aminosilicate Zeo: Zeolite 4A (Wesalis (registered trademark) of Zegussa).

Examples 1 and 2 Powders containing sodium tripolyphosphate and sodium sulfate were prepared by spray drying an aqueous slurry to the composition (% by weight) shown in Table 1 below: Fukae (registered trademark) high-speed mixer /
Table 2 shows the operating conditions and the resulting powder properties after densification with a granulator. In Example 1, the powder was first subjected to a warming treatment at a low agitator speed (50 rpm) for 2 to 3 minutes without operation of the cutter until the temperature reached about 30-35 ° C. This is followed by powdering (as appropriate), then adding a binder (also as appropriate), then granulating,
Finally, the flow aid was added.

Comparison of Examples 2 (a) and 2 (b) shows a greater weight effect for arsyl as a flow aid.

Examples 3 to 5 Powders containing sodium tripolyphosphate as the only water-soluble crystalline inorganic salt were prepared according to the composition (% by weight) shown in Table 3 below.
Prepared by spray drying an aqueous slurry until: Fukae (registered trademark) high-speed mixer /
The powder was densified with a granulator as described in Examples 1 and 2, and the process conditions and the resulting powder properties are shown in Tables 4 and 5 below.

Examples 6-8 Powders containing sodium tripolyphosphate, sodium carbonate and sodium sulfate were prepared to have the composition (% by weight) shown in Table 6 below: These powders were made by spray drying an aqueous slurry. However, the sodium carbonate in the powder of Example 6 was not mixed through the slurry but was post-fed in the fuka mixer.

Fukae (registered trademark) high-speed mixer /
Table 7 shows the process conditions and the resulting powder properties after densification with a granulator as described in Examples 1 and 2.

Examples 9 and 10 Powders containing sodium tripolyphosphate and sodium carbonate were made by spray drying an aqueous slurry to the composition (% by weight) shown in Table 9 below, and a fuka mixer as in the previous example. And the results are shown in Table 10: Example 11 A powder containing sodium tripolyphosphate, sodium sulfate and borax was prepared to have the composition (% by weight) shown in Table 11: The powder was prepared by spray drying an aqueous slurry of all components except borax. 9.0 kg of spray-dried base powder;
The mixture was mixed with 1.0 kg of borax and granulated / densified with a fuka mixer. The processing conditions and the obtained powder properties are shown in Table 12.

Table 12 11 mixed: Time (min) 5 agitator speed (rpm) 200 Cutter speed (rpm) 0 binding agent (water) content (wt%) 1 addition time (min) 1 agitator speed (rpm) 300 Cutter speed (Rpm) 3000 Granulation: time (min) 9 Stirrer speed (rpm) 300 Cutter speed (rpm) 3000 Oversize destruction: time (min) 1.5 Stirrer speed (rpm) 75 Cutter speed (rpm) 3000 Flow aid Agent: Zeo or Alu Alu Amount (% by weight) 1 Addition time (min) 0.5 Stirrer speed (rpm) 75 Cutter speed (rpm) 0 Release: Time (min) 0.5 Stirrer speed (rpm) 75 Cutter speed (rpm) 0 During granulation, the temperature was increased from an initial 20 ° C to about 40-45 ° C. There was no need to cool the mixer.

The properties of the densified granulate were as follows: Yield <1700 μm (% by weight) 82.1 Average particle size (μm) 583 Bulk density (g /) 877 Dynamic flow rate (ml / s) 140 Compressibility ( % V / v) 4.7 Particle porosity <0.20 This material was a mild detergent powder giving a pH of 0.2 (1% by weight aqueous solution).

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code Agency reference number FI Technical display location // (C11D 3/60 3:06 3:10 3:02 3:08 3:20 3:26 3:39) (72) Inventor Donald Peter, United Kingdom, Wirral, Thornton Hock, Eaton Drive 74 (72) Inventor Teimashi Jillon Price United Kingdom, Thiester C.H.A. 2.2・ A.G., Garth Drive ・ 48 (72) Inventor Peter Jillon Ratsell 265-3, Yamate-cho, Naka-ku, Yokohama-shi, Kanagawa Prefecture (56) References JP-A-51-67302 (JP, A) JP-A-62-598 (JP, A) JP-A-61-272300 (JP, A) JP-A-2-86700 (JP, A)

Claims (9)

    (57) [Claims]
  1. In preparing a granular detergent composition or component having a bulk density of at least 650 g / and a particle porosity of at most 0.25, (a) 12 to 70% by weight, based on the total granular starting material, (B) 15 to 50% by weight of sodium tripolyphosphate, based on the total particulate starting material, 15% by weight of the total particulate starting material.
    And up to 70% by weight of a water-soluble crystalline inorganic salt, and other detergent components containing the weight ratio of component (b) :( a) as 0.4: 1 to 5.83: 1 and optionally up to 100% by weight. Temperature above room temperature while containing the granular starting material containing in the container in a high-speed mixer / granulator provided separately from one another and having independently adjustable stirring and cutting means. Detergent composition characterized in that it is treated in the absence of fine particulate matter having an average particle size of 10 μm or less to improve surface properties, and is granulated and densified to at least 650 g / bulk density. Method of manufacturing a product.
  2. 2. A process according to claim 1, wherein the granulation is carried out in a bowl-type high-speed mixer / granulator with a substantially vertical stirrer axis.
  3. 3. The method of claim 1 wherein the particulate starting material comprises at least in part spray-dried particulate material.
  4. 4. A method for preparing a particulate starting material by a process comprising the step of premixing at least one inorganic or organic salt having a particle size of at least 100 μm with the remainder of the particulate starting material in a high-speed mixer / granulator. Item 7. The method according to Item 1.
  5. 5. After the granulation has been completed, fine-grained amorphous sodium aluminosilicate is added to the particulate material in an amount of 0.1% based on the total composition.
    2. The method of claim 1 further comprising the step of mixing in an amount of 2 to 5.0% by weight.
    The described method.
  6. 6. After the granulation is completed, fine-grained crystalline sodium aluminosilicate is added to the particulate material in an amount of 3.0% based on the total composition.
    2. The method of claim 1 further comprising the step of mixing in an amount of .about.12.0% by weight.
    The described method.
  7. 7. The method according to claim 1, wherein the non-soap detergent active (a) comprises an anionic detergent active.
  8. 8. The process according to claim 1, wherein the granulation and densification are carried out to a bulk density of at least 700 g / g.
  9. 9. The method according to claim 1, wherein the salt is borax, sodium bicarbonate, sodium silicate, sodium tripolyphosphate, sodium carbonate,
    The method according to any of the preceding claims, wherein the method is selected from the group consisting of sodium perborate, sodium percarbonate, sodium citrate, sodium nitrilotriacetate, sodium succinate, sodium sulfate and mixtures thereof.
JP1111946A 1988-07-21 1989-04-28 Detergent composition and method for producing the same Expired - Fee Related JP2644038B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB888817386A GB8817386D0 (en) 1988-07-21 1988-07-21 Detergent compositions & process for preparing them
GB8817386.9 1988-07-21

Publications (2)

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JPH0241399A JPH0241399A (en) 1990-02-09
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EP0643129A1 (en) * 1993-09-07 1995-03-15 THE PROCTER &amp; GAMBLE COMPANY Process for preparing detergent compositions
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US5576285A (en) * 1995-10-04 1996-11-19 The Procter & Gamble Company Process for making a low density detergent composition by agglomeration with an inorganic double salt
US5668099A (en) * 1996-02-14 1997-09-16 The Procter & Gamble Company Process for making a low density detergent composition by agglomeration with an inorganic double salt
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BR9711966A (en) * 1996-08-26 1999-08-24 Procter & Gamble Agglomeration process for the production of detergent compositions involving pre-mixing of modified polyamine polymers
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ZA8903186B (en) 1990-12-28
ES2049320T3 (en) 1994-04-16
KR900001836A (en) 1990-02-27
ES2049320T5 (en) 2002-05-16
IN169824B (en) 1991-12-28
IN170472B (en) 1992-03-28
DE68912983D1 (en) 1994-03-24
EP0351937B1 (en) 1994-02-09
EP0351937A1 (en) 1990-01-24
KR920000114B1 (en) 1992-01-09
ZA8905578B (en) 1991-03-27
EP0351937B2 (en) 2001-12-12
GB8910087D0 (en) 1989-06-21
AU3375189A (en) 1990-01-25
DE68912983T3 (en) 2002-04-04
DE68912983T2 (en) 1994-06-01
AU611556B2 (en) 1991-06-13
TR25923A (en) 1993-09-17
KR900001829A (en) 1990-02-27
KR920004462B1 (en) 1992-06-05
CA1322704C (en) 1993-10-05
HK86594A (en) 1994-09-02
PH26823A (en) 1992-11-05
GB8817386D0 (en) 1988-08-24
JPH0241399A (en) 1990-02-09
BR8902006A (en) 1990-04-10

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