JP2920894B1 - Powder composition and method for dissolving or dispersing powder - Google Patents

Abstract

A powder composition and a powder composition capable of easily dissolving or dispersing a powder in a solvent are suppressed when the powder is dissolved or dispersed in a solvent. Provide a distribution method. SOLUTION: The powder composition according to the present invention is obtained by mixing a powder that can become a powdered mixture when mixed with a solvent, with a powdered powder inhibitor having an affinity for the solvent. . The method of dissolving or dispersing the powder according to the present invention, the solvent,
It is an object of the present invention to mix a powder which can become a powdered mixture when mixed with the solvent, and a powdered powder inhibitor having an affinity for the solvent.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint powder (generally referred to as a "dama") which is formed by mixing a powder with a solvent and forming a lump as a powder without the solvent penetrating into the powder. I do.
In the present specification, this lump is referred to as “splice flour”. The present invention relates to a powder composition and a method for dissolving or dispersing powder, which can suppress the occurrence of).

2. Description of the Related Art In general, powder (powder includes fine powder and ultrafine powder) has a large surface area per unit mass. And powder may be mixed with the solvent to generate a joint powder. For example, as in the case where wheat flour, starch, gelatin and the like are dissolved or dispersed in an aqueous solvent. In particular, when powder mixed with a solvent is placed under the control of the adhesive force and cohesion, mixed powder often generates a joint powder.

Here, the term "adhesion / cohesion dominance" means that the adhesion / cohesion between powder particles becomes relatively larger than the force or gravity applied to the powder particles.

[0003] The cause of the generation of flour is not necessarily clear, but is presumed as follows. First, adhesion and cohesion always act on the powder particles. Examples of the adhesive force / cohesive force acting on the powder particles include electrostatic force, van der Waals force, and liquid crosslinking force. In particular, when the powder and the solvent are mixed, the liquid crosslinking force acting between the powder particles increases. Therefore, when the powder is mixed with the solvent, the particles of the powder adhere and agglomerate, respectively, and further form a film by liquid cross-linking, thereby preventing the solvent from penetrating into the powder particles inside the intermediate powder. It is considered that flour is generated.

[0004] When such powder is dissolved or dispersed in a solvent, the powder impedes the penetration of the solvent between the particles of the powder, thereby making it difficult to dissolve or disperse the powder in the solvent. there were.

[0005] For this reason, conventionally, in order to dissolve or disperse the powder almost completely in the solvent, the powder which becomes the joint powder when mixed with the above-mentioned solvent is stirred to crush the joint powder after mixing. In addition, granulation using a freeze-drying method or the like has been performed to improve the solubility of the powder.

[0006] However, in the case where stirring is performed as a means for crushing the joint powder, there is a problem that it takes time to completely dissolve or disperse the powder, and it is complicated.

[0007] For example, when cooking okonomiyaki, when powdered flour is dissolved in water as a solvent, stirring is performed with chopsticks, a spoon, a whisk, and the like. It takes a long time, and the complexity of this work is experienced.

On the other hand, in the case of the freeze-drying method as a means for improving the solubility of the powder, there is a problem that the treatment is costly and, depending on the type of the powder, the solubility is deteriorated. It is used only for some applications such as food and food.

Accordingly, the present invention has been made to solve the above problems, and when powder is dissolved or dispersed in a solvent, generation of sprinkled powder is suppressed and powder is easily removed. It is an object of the present invention to provide a powder composition capable of dissolving or dispersing in a solvent and a method for dissolving or dispersing the powder.

[0010]

Means for Solving the Problems In view of the above-mentioned conventional problems, the present inventors have conducted intensive studies in order to reduce the occurrence of sprinkled powder. And succeeded in achieving the suppression of flour by a simple means of mixing them, thereby completing the present invention.

That is, the present invention has been made to solve the above-mentioned problems, and a means for solving the problem is a powder composition.
10 to 30 μm in diameter, 50 to 1 in length having affinity for the solvent
It is characterized by being mixed with a staple-like repetition inhibitor of 000 μm (claim 1). Another solution is a method of dissolving or dispersing the powder. In the solvent, a powder that can be a powdered mixture when mixed with the solvent, a powder having an affinity with the solvent having a diameter of 10 to 30 μm and a length of 50 μm. ~ 1000μm
And a recirculating inhibitor in the form of a mixture.
4 ).

In the powder composition and the method of dissolving or dispersing powder having the above characteristics, the powder suppressing agent has an affinity with the solvent, so that the powder absorbing agent absorbs the solvent, and the powder suppressing agent is used as a medium. As a result, the solvent can be promptly permeated into the powder particles existing around the relay inhibitor. In addition, the pulverization inhibitor
Because it is in the form of a staple, it can be quickly applied to a wide range of powders.
Solvent can be supplied and the film formed by powder can be easily formed
As a pipe that can penetrate
Plays a role. In particular, the present invention relates to a method wherein
~ 30μm, 50 ~ 1000μm long staple
It has excellent effects. Furthermore, FIG.
As shown in the diagram, since the powder suppressing agent is mixed between the powder particles,
Inhibits film formation. Also, even if a film is formed, the powder particles inside the film can be dissolved and dispersed because it serves as a pipe that allows the solvent to flow between the inside and the outside of the film. , Can break the membrane.

[0013] The dusting inhibitor described in the present invention is not particularly limited as long as it has an action of suppressing dusting, but it is possible to impregnate a solvent from the outside of the membrane into the inside of the membrane. It is more preferable that the material has a property that allows the above. Therefore, it is considered that, for example, in the case where the relay powder is generated, one having a size capable of penetrating the film formed by the relay powder is more preferable. In addition, when the dust suppressant having such a size is mixed with the solvent, the mixture is governed by gravity (the force applied to the powder particles or the gravity is relatively larger than the adhesive force or cohesion generated between the powder particles. It is often thought that the dust suppressant placed under gravity control rarely forms a film by itself. Therefore, it is considered that the powder dust suppressing agent placed under the control of gravity has a higher powder dust suppressing effect than the powder dust suppressing agent placed under the control of the adhesive force and the cohesive force.

Specific examples of the powder that can become a relay powder when mixed with the above-mentioned solvent are not particularly limited.
For example, flour, gelatin, peptides, powdered sugar, fructose,
Food powders such as hard chestnut flour, tempura flour, okonomiyaki flour, octopus roasted flour, hot cake flour, flocculants and flocculants such as sodium alginate, polyacrylic hydrazide, persimmon astringent, activated carbon, azodicarbonamide, azobis Resin foaming agent such as isobutyronitrile, polymerization initiator, resin mixture such as potassium titanate fiber, carbon fiber, talc, calcium carbonate, mica, various medical and agricultural chemicals (especially fine powder, flowable, etc.), dye And pigments.

[0015] The material of the flour-suppressing agent having an affinity for the solvent is not particularly limited. For example, when the solvent is water, cellulose, amylose, starch, chitin, chitosan and the like are used. No. These are hydrophilic substances having a large number of hydroxyl groups in the molecule, and can penetrate the solvent into the inside of the film formed by the powder. Not only pure substances but also hydrolysates, various adducts and salts thereof may be used.

[0016] In particular, as claimed in claim 2 Symbol placement, when the solvent is water, the use of cellulose lump inhibitors, it is possible to suppress the generation of lump, dissolution of the powder wheat flour, dispersion It will be easier. Note that cellulose includes hydrolysates, various adducts, and salts thereof.

The above-mentioned polysaccharides such as cellulose, chitin, chitosan and the like are hydrophilic substances having a large number of hydroxyl groups in their molecules, so that water can easily penetrate into the inside of the membrane and have an effect of suppressing dusting. In addition, there is an advantage that it is inexpensive and easily available. Also, polysaccharides such as cellulose, chitin,
An edible repellent inhibitor such as chitosan and the like, hydrolysates thereof, various adducts and salts thereof is most suitable as a repellent inhibitor for food powders such as wheat flour and potato starch.

[0018] The shape of the dusting inhibitor has a dusting inhibiting effect.
From the viewpoint of staple shape.

[0019] If the staple-like, from serving as a pipe through which the solvent it is possible to quickly can supply solvent to the powder existing in a wide range, also easily penetrate the film formed by the powder It is. Especially diameter 10-3
A staple shape of 0 μm and a length of 50 to 1000 μm has a more excellent effect.

Further, the diameter of the powder that can become a relay powder when mixed with a solvent cannot be uniquely determined because it varies depending on the type, shape, etc. of the powder.
It is considered that a powder having a diameter of m to 100 μm is liable to produce a joint powder.

Further, when the above-mentioned flour-suppressing agent is cellulose, the amount of cellulose is as described in claim 3 .
It is particularly effective to mix 1 to 70 parts by weight with respect to 100 parts by weight of the powder. When the amount is less than 1 part, the effect of suppressing flour dust is not sufficient, and when the amount exceeds 70 parts, changes in physical properties, taste and the like become large depending on the use. However, in applications where there is no problem even if cellulose is contained in a large amount, more than 70 parts by weight may be mixed.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a powder composition and a method for dissolving or dispersing a powder according to the present invention will be described with reference to the drawings.

FIG. 1 (a) shows a powder obtained by mixing a powder (for example, wheat flour) which can become a flour when mixed with a solvent and a predetermined amount of a flour suppressant (for example, staple cellulose). 1 shows a composition. FIG. 2B shows a state in which the powder composition shown in FIG. 1A is mixed with a solvent to form a joint powder. In FIG. 1, reference numeral 1 denotes powder particles, 2 denotes a staple-like powder rejection inhibitor, 3 denotes powder rejection, and 4 denotes a film.

The powder particles 1 and the powder suppressing agent 2 are mixed, and the powder suppressing agent 2 is mixed between the powder particles 1 to form the powder composition 6. When mixing the powder particles 1 and the flour suppressor 2, for example, in a dry state,
A Henschel mixer or a super mixer may be used.

Next, the method for dissolving or dispersing the powder according to the present invention will be described. First, when the powder composition 6 is mixed with a solvent, as shown in FIG.
However, since the staple-like dusting inhibitor 2 present between the powder particles 1 forming the film 4 has an affinity for a solvent,
It plays the role of a pipe, penetrates the solvent into the inside of the relay powder 3, and the relay powder 3 disappears immediately. In this way, when the powder 3 disappears or the solvent permeates into the powder 3, the powder particles 1
Since the solvent permeates in between, the powder is easily dissolved or dispersed in the solvent with slight stirring.

Further, the powder shown in the above embodiment is
Dissolution or dispersion method is powder and staple-like sprinkling inhibitor
2 was mixed with the solvent, and the powder composition 6 was mixed with the solvent.
After mixing the powders, the powder mixture is mixed with a powder inhibitor 2
Also, after mixing the solvent and the flour suppressant 2, the mixing
Powder may be mixed with the liquid .

[0027] in which same lump suppression effect by mixing after slight agitation also solvent was what Re is obtained.

[0028]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail.

Example 1 As a powder, low molecular gelatin (manufactured by Nitta Gelatin Co., Ltd., trade name "water-soluble gelatin H", average particle size 90 μm)
m) Cellulose (average fiber diameter: 20 μm, average fiber length: 300 μm) was used as a flour-suppressing agent in the gelatin using 1 g.
The powder composition obtained by mixing 0.1 g was mixed with 100 g of water at a water temperature of 22.5 ° C., and stirred at 600 rpm for 2 minutes with a magnet stirrer (trade name “HS-3D” manufactured by Inuchi Seieido). The dispersion state of the low molecular gelatin was observed.
As a result, a part of the low molecular gelatin was not dissolved and remained on the water surface, but almost all was dissolved.

Comparative Example 1 The same operation as in Example 1 was carried out except that cellulose was not mixed, and the dispersion state of the low-molecular-weight gelatin was observed. As a result, water did not penetrate into the powder particles, and a part of the low molecular gelatin remained on the water surface.

Example 2 Water-soluble polymer gelatin (230 bloom, manufactured by DGF, Germany, trade name "Instant Gelatin Type 8"
[00B] 1 g of an average particle diameter of 80 μm) and cellulose (the same as in Example 1) as the gelatin dusting inhibitor
The powder composition obtained by mixing 0.5 g was added to 100 g of water at a water temperature of 22.5 ° C., and the mixture was stirred with a magnet stirrer (trade name “HS-3D”, manufactured by Inuchi Seieido Co., Ltd.) at 1000 rpm for 1 minute and dispersed. The condition was observed. As a result, most of the high molecular gelatin was dispersed.

Comparative Example 2 The same operation as in Example 2 was carried out except that cellulose was not mixed, and the dispersed state of the high-molecular gelatin was observed. as a result,
Most of the high-molecular-weight gelatin floated on the water surface as a lump.

Example 3 1 g of a strong powder (Nisshin Flour Milling Co., Ltd., trade name "Kamelia", average particle diameter 70 μm) was used as a powder, and cellulose (the same as in Example 1) 0 was used as a repetition inhibitor for the strong powder. .
1 g of the powder composition mixed with water 10 at a water temperature of 22.5 ° C.
In addition to 0 g, the mixture was stirred at 300 rpm for 2 minutes with a magnet stirrer (trade name "HS-3D" manufactured by Inuchi Seieido), and then the dispersion state of the strong powder was observed. As a result, most of the strong powder was dispersed.

Comparative Example 3 The same operation as in Example 3 was carried out except that cellulose was not mixed, and the dispersion state was observed. As a result, the flour remained below the water surface.

Table 1 shows the results of the above Examples and Comparative Examples.

[Table 1]

From the results of the above Examples and Comparative Examples, it can be seen that the solubility and dispersibility of the powder in water are remarkably improved by mixing cellulose. In particular, from the above examples, the dispersibility was remarkably improved. Also, the greater the amount of cellulose mixed, the more pronounced the effect of suppressing the flouring.

[0037]

According to the powder composition and the powder dissolution or dispersion method of the present invention, when various powders are dissolved or dispersed in a solvent, the solvent can be quickly supplied to a wide range of powders.
And easily penetrate the film formed by the powder.
As well as serving as a pipe through which the solvent passes
And, since it is possible to suppress the generation of undissolved lumps can be carried out quickly and easily dissolved or dispersed. Further, according to the powder composition and the method of dissolving or dispersing the powder according to the present invention, the stirring time is extremely short, and there is no need for troublesomeness as in the related art.

Therefore, the present invention provides a process for producing various foods,
It can be suitably used in a filtration step, a dip lowering step, a wastewater treatment step, a resin composition production step, a paint production step, a pesticide production step, and scenes in which these are used.

[Brief description of the drawings]

FIG. 1 (a) shows an enlarged reference view of a main part of a powder composition,
(B) shows an enlarged reference drawing of the main part of the flour.

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-2-39855 (JP, A) JP-A-2-115030 (JP, A) (58) Fields investigated (Int.Cl. ⁶ , DB name) B01F 1/00-3/22 B01J 13/00 A21D 2/36 A23L 1/03

Claims (4)

(57) [Claims] 1. A powder having a diameter of 10 to 30 μm, which has an affinity for the solvent, is added to a powder which can become a powdered mixture when mixed with the solvent.
A powder composition obtained by mixing a staple-like sprinkling inhibitor of 50 to 1000 μm. 2. The powder composition according to claim 1, wherein said solvent is water, and said powder inhibitor is cellulose. 3. The composition according to claim 2, wherein the cellulose is mixed at a ratio of 1 to 70 parts by weight with respect to 100 parts by weight of the powder.
A powder composition as described in the above. 4. A mixed powder with a solvent when mixed with the solvent.
A powder having a diameter of 10 to 3 having an affinity for the solvent;
0 μm, 50-1000 μm long staple-like sprinkling suppression
Dissolving or dispersing the powder, characterized by mixing with an agent
How .