JP2005307069A - Method for producing liquid composition and method for filling the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for producing various kinds of liquid compositions having characteristic components such as perfume and color imparted thereto so as to reply the diversification of user's requirement while keeping the common basic properties, and usable for a shampoo, a hair rinse, a body soap, a softener, a kitchen detergent, a toothpaste and the like; and to provide a method for filling the liquid composition. <P>SOLUTION: The method for producing the liquid composition comprises preparing common components of the liquid composition including a surfactant, removing bubbles by still standing or under a reduced pressure, continuously feeding the common component liquid, and residual character-imparting components including the perfume, in a prescribed proportion into a sealed mixer, and mixing them to produce one or more kinds of the liquid compositions. The method for filling the liquid composition involves continuously filling a product container with the liquid composition obtained by the method. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a liquid composition comprising a surfactant such as shampoo, hair rinse, body soap, softener, kitchen detergent, toothpaste, etc., which has strong foaming properties, is difficult to escape bubbles, and has a high fragrance as a commercial value. In particular, the liquid composition is produced without air bubbles and keeps the original fragrance, and in particular, while maintaining the common basic performance, according to the diversification of user demands, the fragrance and color tone, Or it is related with the manufacturing method of the liquid composition which can manufacture efficiently the liquid composition of many varieties which provided the other characteristic component with a single compounding equipment, and its filling method.

Conventionally, liquid compositions containing surfactants such as shampoos, hair rinses, body soaps, softeners, kitchen detergents and toothpastes generally have strong foaming properties, and fragrance has been regarded as a commercial value.
These liquid compositions are usually manufactured in an open kettle or a mixing device with a vacuum device. However, in the former case, mixing of bubbles is unavoidable when mixing fragrances, and the resulting bubbles are allowed to stand after completion of blending. As a result, a part of the fragrance component is often volatilized.
In the latter case, after mixing the fragrance, it is defoamed by vacuum, so that there is a higher possibility that a part of the fragrance component volatilizes, and the fragrance is often different from the originally blended fragrance.

On the other hand, users' demands are also diversifying, and in addition to its basic performance, there are multiple varieties that add taste, such as aroma and color tone, or features such as smoothness and touch of hair, deodorization and disinfection. The need to prepare them is increasing, and a variety of products is being developed.
In order to meet such a demand, as a conventional method for producing the liquid composition, the whole component including the characterizing component was mixed with a mixing device equipped with a stirrer to prepare a final composition. In the above, it is common to temporarily store in a container such as a storage tank or a container, and transport and fill the pipe or transport the container itself.

Therefore, when dealing with a single mixing device and storage facility, it is necessary to perform switching cleaning from the mixing device to the storage facility and transport piping every time the product type is changed. In addition, a large amount of water and energy are consumed for sterilization, and the load of waste water treatment after washing is also increased. In particular, a mixing apparatus with a vacuum device used for emulsions and high-viscosity liquids that are difficult to remove bubbles has a complicated internal structure, and thus has poor cleaning properties and has a big problem in switching cleaning.
Furthermore, after the above equipment has been cleaned and sterilized, the production of the next variety must be started, so it takes a considerable number of days to obtain the desired liquid composition. The current situation is that we cannot respond quickly.

  As a technique to solve these problems, there is a method of adding dedicated equipment for each product type, but in order to cope with the above-mentioned multiple products, as many devices as the number of products are required, which requires enormous costs. In addition to the large installation space and the low operation of each facility, there is another problem that it cannot be a solution to the quality problems described above.

  As another solution, for example, a method is known in which neat soap is prepared, and necessary additives are blended, kneaded, and stamped to produce a wide variety of bar soap (for example, see Patent Document 1). In addition, a method for preparing an emulsified liquid composition by preparing a high-concentration emulsion in a vacuum emulsification tank and mixing with a plurality of atmospheric stirring tanks and an aqueous phase containing a characteristic-imparting component for each stirring tank ( For example, see Patent Document 2).

However, in the methods described in these documents 1 and 2, defoaming can be performed at the stage of preparing common components that occupy most of the composition, and switching cleaning of the mixing equipment, which is often complicated, is not necessary. Therefore, a considerable part of the above-mentioned problems can be solved, but a plurality of facilities for blending the characteristic-imparting components are required, and countermeasures against the bubbles mixed when mixing the characteristic-imparting components are taken. It has not been touched at all, and furthermore, it has not yet solved the problems such as how to deal with perfume ingredients that evaporate during storage until the obtained composition is filled in the product container. .
JP 58-21500 (Claims, Examples, etc.) JP 2000-189785 A (Claims, Examples, etc.)

  The present invention is to solve this problem in view of the above-mentioned problems of the prior art and the current situation, and there is no mixing of bubbles, and the composition of the added fragrance is not impaired. An object of the present invention is to provide a method for producing a liquid composition capable of producing a variety of liquid compositions with minimal switching washing, and a method for filling the liquid composition. It is another object of the present invention to provide a method for producing a liquid composition capable of responding promptly to a production request by increasing the production capacity by increasing the actual operation rate of equipment.

  As a result of intensive studies to solve the above-described problems of the prior art, the present inventors have prepared a common component of a plurality of liquid compositions containing a surfactant, and after applying a specific means, By mixing the component liquid and the remaining characterizing component including the fragrance at a predetermined ratio with a specific mixing device, and filling the obtained liquid composition into the product container by specific means, the above The inventors have found that a method for producing a target liquid composition and a method for filling the liquid composition can be obtained, and have completed the present invention.

That is, the present invention resides in the following (1) and (2).
(1) After preparing the common component of the liquid composition containing the surfactant and removing bubbles by standing or reduced pressure, the common component liquid and the remaining feature-imparting component containing the fragrance are added at a predetermined ratio. A method for producing a liquid composition, characterized in that it is continuously fed to a sealed mixing device and mixed to produce one or more liquid compositions.
(2) A liquid composition filling method, wherein the liquid composition obtained by the production method according to (1) is continuously filled in a product container in a sealed state.

In the method for producing a liquid composition of the present invention, a variety of liquid compositions provided with aroma, color, or other characteristic components according to diversification of user's demands while maintaining common basic performance. The product can be produced efficiently with a single blending facility.
In the filling method of the present invention, if the product composition is continuously filled directly into the product container without storing the liquid composition obtained by the above production method, the fragrance component transpiration during storage can be prevented and stored. Equipment becomes unnecessary, and the cleaning work at the time of product change is reduced, and it becomes more efficient.

Hereinafter, embodiments of the present invention will be described in detail.
The method for producing a liquid composition of the present invention prepares common components of a liquid composition containing a surfactant, and after removing bubbles from standing or reduced pressure, provides the remaining characteristics including the common component solution and a fragrance. The components are continuously supplied at a predetermined ratio to a sealed mixing device and mixed to produce one or more liquid compositions.
Moreover, the filling method of the liquid composition of the present invention is characterized in that the liquid composition obtained by the above production method is continuously filled in a product container in a sealed state.
The present invention contains a surfactant, has a high foaming property, is difficult to remove bubbles, and a fragrance is regarded as a commercial value. Further, it is necessary to increase the number of products in response to various demands of users. It is preferably applied to the production of liquid compositions such as shampoos, hair rinses, body soaps, softeners, kitchen detergents, toothpastes and hand soaps.

In the present invention, first, a common component (intermediate raw material) of a plurality of liquid compositions containing a surfactant is prepared.
Examples of the surfactant that can be used include anionic surfactants such as alkylbenzene sulfonates, α-olefin sulfonates, higher alcohol sulfates, higher alcohol polyoxyethylene ether sulfates, fatty acid salts, and the like. Cationic surfactants such as quaternary ammonium salts, tertiary amine salts, imidazolinium salts and amino acids, amphoteric surfactants such as betaine type and taurine type, higher alcohol polyoxyethylene ether, polypropylene ether and fatty acid polyoxy Examples include at least one (non-ionic surfactants such as ethylene ester, polyoxyethylene hydrogenated castor oil, fatty acid sorbitan ester, alkylol amide, etc., each alone or a mixture of two or more, and so on).

  Other common components vary depending on the use of the liquid composition (shampoo, hair rinse, body soap, softener, kitchen detergent, toothpaste, etc.). For example, alcohols such as ethanol, ethylene glycol, propylene glycol, and glycerin, Organic and inorganic acid salts such as sodium benzoate, sodium citrate, sodium nitrate, and salt, polymer compounds such as cellulose, acrylic acid copolymer, carboxyvinyl polymer, and gum, aluminum hydroxide, silicate, calcium phosphate, etc. And at least one of preservatives such as parabens and sorbic acid, antioxidants such as hydroxyethanediphosphonic acid, UV absorbers, purified water and tap water.

The equipment for preparing these common components varies depending on the dosage form of the composition, but a composition that is difficult to remove bubbles, such as a high-viscosity product or an emulsion, is provided with a vacuum device and a scraper on the paddle. Is desirable. In particular, in the case of an emulsion, an apparatus having both a homomixer and a disperser mixer having a high shearing force is desirable.
For other low-viscosity products that are mainly mixed, it is desirable to use an open kettle equipped with a propeller or paddle that is normally used.

In the present invention, a common component of the liquid composition containing the surfactant is provided with the vacuum device, a paddle equipped with a scraping device, a device having a high shearing force homomixer or dispa mixer, etc. After the preparation, it is necessary to remove the bubbles by standing or by reducing the pressure with a vacuum apparatus.
By removing bubbles from the common component liquid by the above-described standing or reduced pressure, the appearance of the final liquid composition can be maintained and the stability of the emulsified particles and dispersed particles can be maintained.

Next, after the bubbles are removed by the standing or reduced pressure, the common component liquid and the remaining feature-imparting components including the fragrance are continuously supplied to the sealed mixing device at a predetermined ratio and mixed. To produce one or more liquid compositions.
Ingredients that give characteristics to the product vary depending on the use of the liquid composition (shampoo, hair rinse, body soap, softener, kitchen detergent, toothpaste, etc.). For example, in addition to fragrances and pigments, octopirox There may be mentioned at least one of antibacterial agents such as triclosan, wetting agents such as various extracts and collagen, pearlescent agents such as ethylene glycol distearate, and emulsions such as cybinol.
The ratio of the above common component liquid to the remaining characteristic-imparting components including the fragrance varies depending on the use of the liquid composition such as shampoo, hair rinse, body soap, softener, kitchen detergent, toothpaste, etc. It is blended at a ratio of 10 to 99.9% by mass of the common component liquid (hereinafter simply referred to as “%”) and 0.1 to 90% of the remaining characterizing component including the fragrance, for example, the body. In the case of soap, it is blended at a ratio of 40 to 99.9% of the common component liquid and 0.1 to 60% of the remaining characterizing component including the fragrance.

In the present invention, the mixing device for mixing the common component liquid and the characteristic-imparting component needs to be a closed system. If an open system is used, bubbles are involved during mixing and the object of the present invention is not exhibited.
Therefore, for example, a mixing pump, a line homomixer, or a line mixer can be used as a device for mixing the common component liquid and the characteristic-imparting component. Pumps and line homomixers are not suitable. Therefore, in consideration of the flexibility of the apparatus, a line mixer is desirable because a sufficient mixing time can be secured. Among line mixers, the vertical mixer is particularly desirable because it is a vertical mixer that can easily extract the remaining liquid in the apparatus when switching the product type.

The capacity of the mixing device is preferably set to a size such that the residence time of the mixed solution is 0.2 to 1200 seconds. As described above, in the case of a component that does not completely dissolve instantaneously, 5 to 1200 seconds is preferable.
If the residence time is too short, sufficient mixing cannot be performed and a uniform composition cannot be obtained. In addition, even if the residence time is increased more than necessary, the mixing property is not improved, and not only the capacity of the apparatus is increased, but, for example, when a polymer compound is used as a thickener, the viscosity is decreased. , May impair quality.

The nozzle for introducing the common component liquid into the mixing apparatus is preferably installed concentrically with the rotating blades as usual.
In the case of using a line mixer, since the difference between the inner diameters of the pipe and the mixer is usually large, it is desirable to make the inlet part conical and further provide a rectifying plate so that the liquid spreads over the entire mixer.
The nozzle that introduces the characteristic-imparting component into the mixing device is usually connected to the common component side piping at the inlet of the mixing device, but in the case where gelation or aggregation occurs when it comes into contact with the common component solution, the common component solution is used. In addition to the side, a shape in which a nozzle directly introduced into the mixing device is provided and the tip of the nozzle is provided in the immediate vicinity of the rotary blade is preferable.
In addition, the type of stirrer when a line mixer is used for the mixing apparatus varies depending on the physical properties of the liquid composition, but generally a general-purpose paddle blade is used. In the case of a component that is hardly soluble or difficult to disperse, it is desirable to use a model having a shearing force like a displo blade. The ratio between the inner diameter of the mixer and the stirring blade diameter is not particularly limited, but is preferably 0.2 to 0.9, and particularly preferably 0.3 to 0.7. If this ratio is less than less than 0.2, the overall mixing becomes insufficient, the amount of liquid that passes without being sufficiently mixed increases, and even if the ratio exceeds 0.9 and becomes larger than necessary, the mixing property Can not be raised, it just increases the load on the motor.

Furthermore, it is preferable that the stirring force of the mixing device is applied so that the power per unit volume of the mixed solution is 2 to 35 kW / m ³ . If this stirring force is less than less than 2 kW / m ³ , the mixing becomes insufficient and a uniform liquid composition cannot be obtained. In addition, even if the stirring power exceeds 35 kW / m ³ and the strength is increased more than necessary, the mixing property cannot be increased and the load on the motor is increased. For example, a polymer compound is used as a thickener. In some cases, the quality may be deteriorated, for example, the viscosity may be decreased, or the clay mineral may be blended to increase the viscosity over time.

In the present invention, the supply method of the common component liquid and the characteristic imparting component is not particularly limited as long as it can be continuously supplied at a predetermined ratio depending on the component ratio of the liquid composition to be obtained. It is preferable that a tank is provided near the mixing device, a supply pump is provided, a supply pipe to the mixing device is provided, and a pipe that diverges the pipe immediately near the inlet of the mixing device and circulates to the supply tank is provided. .
By configuring in this way, each liquid can be circulated in advance and the flow rate adjusted to a predetermined amount before supplying the liquid to the mixing device, so that a liquid composition product having a predetermined composition can be supplied immediately after the start. Can be obtained. In addition, in the system in which the liquid is suddenly supplied to the mixing apparatus without providing a circulation line, the resulting mixture is unbalanced and becomes a defective product until it is adjusted to a predetermined flow rate. A container for receiving defective products may be required.

In the method for producing a liquid composition of the present invention, as described above, a common component of a liquid composition containing a surfactant is prepared, air bubbles are removed by standing or reduced pressure, and then the common component solution and a fragrance are contained. A desired liquid composition is obtained by continuously supplying the remaining characteristic-imparting components at a predetermined ratio to a sealed mixing device and mixing to produce one or more liquid compositions. A variety of liquid compositions with fragrances, colors, or other characteristic components can be added to a single blending facility according to the diversification of user requirements while maintaining common basic performance. Thus, it can be manufactured efficiently.
In addition, when receiving the obtained liquid composition once in a storage tank or a storage container, it is necessary to receive in the sealed installation. This is because when stored in an open storage tank or storage container, part of the fragrance component may evaporate during storage, and the original aroma may not be obtained.

Next, the liquid composition filling method of the present invention is characterized in that the liquid composition obtained by the above production method is continuously filled in a sealed product container.
By filling the obtained liquid composition directly and directly into the product container in a sealed state, it is possible not only to completely prevent the fragrance ingredient from evaporating due to storage, but also to eliminate the need to install storage tanks and storage containers, as well as to switch product types. In this case, cleaning and sterilization work is not necessary, and the filling can be performed more efficiently.
When filling directly, filling of the product container and the subsequent packaging process generally involve a stoppage due to minor troubles or a break, so it is necessary to cope with it. If a circulation line is provided, a stable liquid composition can be obtained only by switching between the mixing device side and the circulation side.
Note that a buffer tank with a small capacity may be provided between the mixing device and the filling machine in order to relax the linkage with the filling side. Further, there may be a plurality of filling lines. In this case, the required amount of liquid varies depending on the number of operating filling lines, but the supply pump for each of the common component liquid and the characteristic imparting component is equipped with a device that can change the flow rate, such as an inverter, and a recipe for the required amount is created and controlled. If it does, it will be able to cope easily.

Next, specific embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a process flow diagram for manufacturing a liquid composition showing an example of an embodiment of the present invention, FIG. 2 is a schematic sectional view showing an example of a mixing apparatus, and FIG. 3 is a direct filling method showing another example of the present invention. FIG. 4 is a schematic diagram showing an example of a vacuum emulsification tank (apparatus) used for preparing the common component liquid.
In the method for producing a liquid composition of the present embodiment, first, common components in a plurality of liquid compositions such as shampoo, hair rinse, and body soap are prepared in a stirring tank 1 as shown in FIG.
As this agitation tank 1, for example, a common component liquid preparation vacuum emulsification device 27 including a paddle blade 24, a homomixer 25, and a scraping device 26 having the shape shown in FIG. 4 can be used.
The common component liquid prepared in the stirring tank 1 is evacuated by depressurization and then sent to the common component liquid storage tank 2 or is sent to the storage tank 2 and allowed to stand to remove the bubbles. Then, it is supplied to the supply tank 3 for the common component liquid, and sent to the mixing device 9 through the supply pump 4 and the supply switching valve 5 for the common component liquid. On the other hand, the characteristic-imparting component supply tank 6 is prepared with characteristic-imparting components such as fragrances, pigments, antibacterial agents, various extracts, and wetting agents such as collagen. In this system, the supply component supply switching valve 8 supplies the mixing device 9.
Here, before supplying the liquid to the mixing device 9, the valves 5 and 8 are made to flow on the circulation side, respectively, and after the liquid is stably adjusted to a predetermined flow rate, the valves 5 and 8 are switched to the mixing device side. It is preferable to supply.
FIG. 2 is a schematic cross-sectional view showing an example of the mixing device 9, 10 is a paddle blade stirrer, 11 is a common component liquid supply nozzle, 12 is a characteristic imparting component supply nozzle, 13 is a rectifying plate, and 14 is a mixed liquid. The outlet nozzle is shown.

  In this embodiment configured as described above, as shown in FIG. 1 and FIG. 2, the common components of the liquid composition containing the surfactant are prepared in the emulsification tank 1, and bubbles are removed by standing or reduced pressure. Thereafter, the common component liquid and the remaining characteristic-imparting components including the fragrance are continuously supplied to the sealed mixing device 9 at a predetermined ratio via each supply pump and each valve, and mixed to be one type or By producing two or more liquid compositions, the intended liquid composition can be obtained.

FIG. 3 is a manufacturing flow process diagram for direct filling, showing an example of another embodiment of the present invention.
In FIG. 3, 15 is a common component liquid supply tank, 16 is a common component liquid supply pump, 17 is a common component liquid supply switching valve, 18 is a characteristic imparting component supply tank, 19 is a characteristic component supply pump, and 20. Is a supply switching valve for a characteristic imparting component, 21 is a mixing device, 22 is a buffer tank, and 23 is a filling machine. Here, when the filling machine stops, the valves 17 and 20 are switched to the circulation side, respectively, to maintain a stable flow rate, and when the filling machine is restarted, the valves 17 and 20 are switched to the mixing device 21 side to supply. Resume.
In this embodiment configured as described above, as shown in FIG. 3, a common component of a liquid composition containing a surfactant is prepared in an emulsification tank, and bubbles are removed by standing or reduced pressure, and then a supply tank 15, the common component liquid and the remaining characteristic imparting components including the fragrance are continuously supplied to the sealed mixing device 21 at a predetermined ratio via each supply pump and each valve, and mixed. One type or two or more types of liquid compositions are produced, and the obtained liquid compositions are continuously filled in a sealed product container by a filling machine 23 through a buffer tank 22.
As shown in FIG. 3, by continuously filling the obtained liquid composition directly into the product container, it is possible to completely prevent the fragrance component from evaporating due to storage, and it is not necessary to install a storage tank or a storage container. In addition, cleaning and sterilization work is not required when changing the product type, and more efficient filling is possible.
When filling directly, filling the product container and the subsequent packaging process generally involve a stoppage due to minor troubles or a break, so that countermeasures are necessary. If a circulation line is provided, a stable liquid composition can be obtained only by switching between the mixing device side and the circulation side.

According to the method for producing a liquid composition of the present invention configured as described above, a common component that occupies most of the liquid composition is prepared, defoamed, and then a fragrance and other characteristic-imparting components are sealed. By mixing in step 1, a desired liquid composition can be obtained without mixing bubbles and without disturbing the balance of the fragrance components.
In addition, when producing liquid compositions containing a wide variety of surfactants, large-capacity equipment for preparing common components that occupy most of the liquid composition, or the interior used for the production of emulsions and high-viscosity liquids This eliminates the need for switching cleaning of devices having a complicated structure, and can cope with cleaning switching of only a small-capacity mixing device, increasing the actual operating rate of the equipment and increasing the production capacity. In addition, since the common component liquid can always be stocked regardless of the product type, as soon as the mixing apparatus is prepared, a desired product can be obtained simply by passing the liquid, and it is possible to quickly respond to production requests.
In particular, in the present invention, various productions such as shampoos, hair rinses, body soaps, softeners, kitchen detergents, toothpastes, etc. It can respond quickly to fluctuations and flexibly respond to changes in items and production volume.

  EXAMPLES Next, although an Example and a comparative example demonstrate this invention further in detail, this invention is not limited to the following Example etc.

[Examples 1-2 and Comparative Examples 1-2: Production of three types of body soaps A, B, and C]
Body soaps A, B, and C have 99.0% of common components to be described later. As a characterizing component, body soap A is prepared fragrance A 0.7%, purified water 0.3%, and body soap B is Preparation perfume B 0.7%, green pigment water 0.3%, body soap C is a composition provided with preparation perfume C 0.7% and yellow pigment water 0.3%.
Examples 1 and 2 and Comparative Example 2 were used for these three varieties using a common component liquid preparation vacuum emulsification tank (apparatus) 27 equipped with a paddle blade 24, a homomixer 25, and a scraping device 26 having the shape shown in FIG. In Comparative Example 1, the final product was blended in a batch size of 1.6 t, and 9.6 t was manufactured in the order of body soap A → body soap B → body soap C.
The vacuum emulsifier is operated continuously for 24 hours, and the product container is filled only for day shift (7.5 hours).

First, in the vacuum emulsification device 27 equipped with the paddle blade 24, the following blending components were mixed and neutralized at 60 ° C. to prepare small fatty acids.
Purified water 64.0 parts Potassium lauroyl glutamate (23% aqueous solution) 256.0 parts Propylene glycol 32.0 parts Caustic potash (48% aqueous solution) 12.8 parts Lauroylmethyl-β-alanine 118.4 parts Polyoxyethylene octyldodecyl ether 12.8 parts 3.2 parts ethylenediaminetetraacetic acid
Total 499.2 parts Purified water 156.8 parts, propylene glycol 64.0 parts and potassium lauroyl glutamate (23% aqueous solution) 288.0 parts were put into the emulsification tank of the vacuum emulsifier described above, and the pressure was reduced to -75 kPa. (Continued), heated to 60 ° C. while stirring the paddle blade at 28 rpm and the scraping blade at 35 rpm (Continued), and then 3% smectite dispersion (dispersion medium: prepared in advance at 60 ° C.). Purified water) 288.0 parts was added, and the homomixer was applied at 1500 rpm for 20 minutes to uniformly disperse.
Subsequently, 192.0 parts of a 2% hydroxypropyl methylcellulose swelling liquid (solvent: purified water) prepared in advance was added, and the homomixer was similarly applied at 1500 rpm for 20 minutes to mix uniformly. Furthermore, after adding 96.0 parts of an alkyl acrylate copolymer (25% dispersion) and mixing for 20 minutes, the fatty acid accessory prepared previously is added and mixed for 10 minutes and cooled to 45 ° C. did. Then, stirring was stopped, pressure reduction (-75 kPa) and atmospheric pressure return were repeated, and it degas | foamed until the bubble on the liquid surface became almost under normal pressure, and the common component liquid was obtained.

In Examples 1-2 and Comparative Example 2, the common component liquid was extracted into a storage tank. The time cycle was 220 minutes.
In Example 1, prepared fragrance A was prepared in a container in parallel, and purified water was prepared in another container. According to the flow process diagram of FIG. 3, the weight ratio of common component liquid: prepared fragrance A: purified water is 99.0: 0.7: 0.3 in a 12 liter mixing device having the shape shown in FIG. Body soap A was obtained by supplying the mixture at a flow rate such that the residence time of the mixed solution in the mixing apparatus was 30 seconds. The stirring power at this time was 11 kW / m ³ per unit liquid volume of the mixed liquid.
The obtained liquid was continuously filled in a product container (made of polyethylene, capacity 580 ml, the same applies hereinafter) in a sealed state.

  After the production of the body soap A was completed, the mixing device, the filling machine, and the piping between them were washed and sterilized, the prepared fragrance B was prepared in a container, and green pigmented water was prepared in another container. Preparations were completed in 3 hours from the stop, and production of body soap B was started immediately. The residence time and stirring force of the mixing apparatus were the same as those for body soap A. After the production of the body soap B was completed, it was switched to the body soap C by the same operation as described above.

In Example 2, a mixing pump was used instead of the mixing apparatus in Example 1. The residence time in the pump was 0.2 seconds, and the applied power was 11 kW / m ³ per unit liquid volume. Other conditions and operations were the same as in Example 1, and the following varieties were obtained in almost the same time.

In Comparative Example 2, each body soap was manufactured according to the flow process diagram shown in FIG. That is, 792 parts of the common component liquid prepared in the emulsification tank 28 are alternately charged from the storage tank 29 into two 1 kl atmospheric pressure stirring tanks 30 each, and 5.6 parts of prepared perfume A and 2.4 parts of purified water are added. For 20 minutes to obtain body soap A. The usage method of the two agitation tanks 30 and 30 is a method in which a product is prepared on the other side while being used for filling on the one hand and is switched when one is empty. After the production of the body soap A was completed, the two agitation tanks 30 and 30 and the filling machine 31 and the piping between them were washed and sterilized, and it took 6 hours.
Thereafter, the common component liquid was transferred to the agitation tank 28, and the characterizing component was blended under the same conditions and operation as the body soap A, and the body soap B was manufactured and filled in the product container. After the production of body soap B was completed, it was switched to body soap C by the same operation.

In Comparative Example 1, the characteristic component was added to the common component liquid obtained in the vacuum emulsification tank 27 as it was and stirred under normal pressure using the same vacuum emulsification tank 27, and mixed for 20 minutes. That is, 11.2 parts of prepared fragrance A and 4.8 parts of purified water are added to body soap A, 11.2 parts of prepared fragrance B are added to body soap B, and 4.8 parts of green dye water are added. In C, 11.2 parts of the prepared fragrance C and 4.8 parts of yellow pigment water were added to obtain products, and each product was extracted into a storage tank. The time cycle was 240 minutes.
The filling of the product container started from the next morning. After the production of the body soap A solution, the pipes to the vacuum emulsification tank and the storage tank were cleaned and sterilized, and 10 hours were required. Waiting for completion of filling, the storage tank, the piping from the storage tank to the filling machine, and the filling machine were cleaned and sterilized, and it took 14 hours. Thereafter, body soap B and then body soap C were sequentially manufactured under the same conditions and operations.

  The time charts of Examples 1 and 2 and Comparative Examples 1 and 2 of the above operation are shown in FIG. 6, and the quality of the obtained products (bubble contamination, fragrance evaluation) and production efficiency are shown in Table 1 below. In addition, evaluation of bubble mixing and evaluation of fragrance were evaluated by the following methods.

(Evaluation method for bubble contamination)
The obtained product was sampled in a 50 ml glass bottle, and bubbles in the liquid were visually evaluated according to the following evaluation criteria.
Evaluation criteria:
○: No bubbles are observed Δ: 10 or less bubbles are observed ×: 10 or more bubbles are recognized (fragrance evaluation method)
The obtained product was put into a 50 ml glass bottle and evaluated by smell, and Example 1 was evaluated as ◯, and a case where there was a difference was evaluated as ×.

  As is apparent from the results of Table 1 and FIG. 6, in Examples 1 and 2 that are within the scope of the present invention, the target liquid composition (body soap) is compared to Comparative Examples 1 and 2 that are outside the scope of the present invention. ) With high quality and high production efficiency, it was found that the desired varieties can be handled quickly.

It is a manufacturing flow process figure which shows an example of the manufacturing method of this invention. It is a schematic cross section which shows an example of a mixing apparatus. It is a manufacturing flow process figure which fills directly which shows another example of this invention. It is a schematic diagram of the vacuum emulsification tank used for preparation of a common component liquid. 6 is a manufacturing flow process diagram performed in Comparative Example 2. FIG. It is the time chart implemented by the Example and the comparative example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Emulsification tank which prepares common component liquid 2 Common component liquid storage tank 3 Common component liquid supply tank 6 Feature imparting component supply tank 9 Mixing device

Claims (2)

  A common component of a liquid composition containing a surfactant was prepared, air bubbles were removed by standing or reduced pressure, and the common component liquid and the remaining feature-imparting components including a fragrance were sealed at a predetermined ratio. A method for producing a liquid composition, characterized in that it is continuously supplied to a mixing device and mixed to produce one or more liquid compositions. A liquid composition obtained by the production method according to claim 1 is continuously filled in a product container in a sealed state.

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