JP2585968B2 - Pack with water quality improver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealed pack of a water quality improving agent using a pearl layer contained in a shell, for example, an oyster shell.

[0002]

2. Description of the Related Art As a water quality improving agent, those using shells such as oysters have been widely used.

[0003] For example, Japanese Patent Publication No. Sho 64-10279 proposes a water quality improving agent in which shells are baked at a high temperature and then crushed. This water quality improver is composed of calcium oxide Ca
It is mainly composed of O and becomes CaCO ₃ in water to exhibit an alkaline action, thereby neutralizing organic acids, inorganic acids and calcium in water and purifying water.

[0004] The applicant of the present invention has proposed in Japanese Patent Publication No. 5-32239 a water purifying agent obtained by separating a pearl layer from a crushed shell by means of hydrolysis or the like, heating the pearl layer and subjecting it to an alkali treatment. ing. This water purification agent purifies water by releasing calcium ions Ca ²⁺ in water, thereby reacting Ca ²⁺ with chlorine in water to remove chlorine which causes odor.

[0005]

In any of the above water quality improvers, calcium present in oyster shells is ionized in water, and the calcium ions are reacted with acids and chloride ions in the water to remove the acids and chloride ions. It is not possible to decolorize or deodorize the object to be treated (food, etc.) immersed in water using any of the water quality improvers.

Accordingly, an object of the present invention is to provide a water quality improving agent-enclosed pack capable of decolorizing and deodorizing an object to be treated such as food immersed in water.

[0007]

In order to achieve the above object,
In the present invention, the pearl layer or the crushed shell separated from the shell is dried by heating, and a strain is generated between the crystalline part and the non-crystalline part of the pearl layer to form fine voids therebetween. This pearl layer or shell is immersed in an aqueous acid solution, and while carbon dioxide is being generated, this is pulled up from the aqueous acid solution to retain unreacted residual acid in the voids and dried, and a water quality improver is obtained. A water-permeable bag for enclosing and holding the water quality improver.

[0008]

[Function] When the pearl layer separated from the shell or the crushed shell is heated and dried, the crystalline layer (9) in the pearl layer (8) is dried.
Distortion is generated between the crystal and the amorphous (10), and fine voids are formed between the two. When an acid is added to the pearl layer or the crushed shell, calcium carbonate CaCO ₃ among the calcium compounds in the pearl layer mainly reacts with the acid to generate carbon dioxide. CaCO ₃ + 2H ⁺ → Ca ²⁺ + CO ₂ ↑ + H ₂ O

The acid-treated pearl layer or crushed shell is taken out, dried, sealed in a water-permeable bag, and then poured into water. The above reaction is restarted by the residual acid of the reaction, and carbon dioxide is generated again. The carbon dioxide exhibits a reducing property during its generation stage, and decolorizes and deodorizes the object to be treated immersed in water.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 1, a water quality improving agent-enclosed pack (1) according to the present invention comprises a water quality improving agent (2) described later and a bag (3) made of water-permeable paper or nonwoven fabric.
It is constituted by enclosing in.

FIG. 2 is a vertical sectional view of the oyster shell. The oyster shell (5) has an outer shell layer (6) made of a nitrogen-containing compound and a prismatic layer (7) made of an organic compound containing an alkali metal compound.
And a pearl layer (8) containing a complex salt of an alkali metal such as calcium. The pearl layer (8) is mainly composed of a calcium compound, particularly calcium carbonate (CaCO ₃ ). As shown in FIG. 3, a lamellar crystalline (9) and non-crystalline (10) are laminated. Forming the structure.

Hereinafter, the production procedure of the above-mentioned water quality improver (2) will be described.

First, only the pearl layer (8) is separated and collected from the oyster shell (5). As disclosed by the present applicant (see Japanese Patent Publication No. 5-25560), for example, the pearl layer (8) is formed by immersing a crushed shell in hot or high-pressure hot water or alkaline water to form an outer shell. The layer (6) and the prism layer (7) are decomposed and removed, and the separated pearl layer (8) is stirred and washed, and the amorphous part (10) adhered to the surface of the crystalline part (9) of the pearl layer (8). Is separated and removed.

Next, the pearl layer (8) is formed by the procedure shown in FIG.
Is purified. Specifically, first, the separated pearl layer (8) is heated at a high temperature. When heated in this manner, microscopic voids are formed microscopically between the crystalline portion (9) and the amorphous portion (10) of the pearl layer (8). this is,
It is considered that distortion occurs in the crystalline portion (9) and the amorphous portion (10) due to heat, and one layer is separated from the other layer.

Next, this pearl layer (8) is coated with an aqueous acid solution,
For example, it is immersed in hydrochloric acid. Then, among the calcium compounds in the pearl layer (8), especially calcium carbonate (CaC)
O ₃ ) reacts with hydrochloric acid as follows to produce salts (CaCl ₂ ) and carbon dioxide. CaCO ₃ + 2HCl → CaCl ₂ + H ₂ O + CO ₂ ↑

At this time, since a slight gap is formed between the crystalline part (9) and the non-crystalline part (10) as described above, the acid is transferred to the pearl layer (8) having a scale-laminated structure. It can penetrate deep inside.

The amount of hydrochloric acid used is desirably about 0.5 to 1% in terms of weight, and the acid may be an inorganic acid such as hydrochloric acid or the like.
Organic acids such as carboxylic acid, acetic acid and fruit acid can also be used.

Before the reaction is completed, that is, while carbon dioxide is being generated, the pearl layer (8) in the aqueous acid solution is pulled up and dried to obtain the water quality improver (2). The water quality improver (2) is weighed, sealed in a bag (3), and the opening of the bag (3) is sealed to obtain a compact and easy-to-handle water quality improver-enclosed pack (1). .

Since the unreacted residual acid is retained in the voids in the pearl layer (8) in the water quality improver (2), if the sealing pack (1) is put into water, Then, the above reaction proceeds again to generate carbon dioxide. The carbon dioxide generated in this manner exhibits a reducing property during its generation, and changes the double bond of the organic compound serving as the odor or color group into a single bond. For this reason, deodorization and decolorization of the processing object (food etc.) immersed in water will be performed.

Therefore, for example, only by putting the enclosing pack (1) into the water for cooking before or during the cooking of rice, it is possible to change foreign-made rice having a problem of odor into one having a low odor suitable for Japanese taste. Can be. In addition, by merely immersing the enclosed pack (1) in the water before cooking, the flavor of vegetables with strong flavor, for example, peppers, can be reduced, and children and the like can eat without resistance. . In addition, the decolorizing action of the water quality improver (2) can make the colors of vegetables soaked in water more vivid.

Furthermore, when the sealed pack (1) is put into water, calcium ions are eluted into the water, so that the taste of water is increased and the taste of coffee, tea and the like can be improved. It can also supply calcium, which modern people tend to lack.

Although not shown, one end of a hanging string is attached to the end of the bag (3) and a tag is attached to the other end of the hanging string in order to facilitate lifting from the water. You may keep it.

In the above description, the acid treatment is performed only once to obtain the water quality improver (2), but it is also possible to perform the acid treatment two or more times. For example, the case where acid treatment is performed twice will be described below.

As shown in FIG. 5, first, the pearl layer (8) separated from the oyster shell (5) is heated and dried to cause distortion in the crystalline portion (9) and the amorphous portion (10). A minute gap is formed between the two. Next, the pearl layer (8) is put into an aqueous acid solution such as hydrochloric acid to perform a first acid treatment, and is left as it is until no carbon dioxide is generated. Next, the pearl layer (8) is washed with water and immersed in water,
Acid is supplied again to perform the second acid treatment. In the second acid treatment, CaO, C initially contained in the pearl layer (8)
The acid aqueous solution becomes cloudy when aCO _{3 and the} like float, but if an excess acid is further added, these become soluble salts (such as CaCl ₂ ) and are ionized, so that the acid aqueous solution becomes transparent. When the pearl layer (8) is taken out of the water when it becomes transparent and dried, the pearl layer (8) is removed in the same manner as shown in FIG.
Residual acid is retained in the voids inside. Therefore, if it is put into water, the above reaction is restarted to generate carbon dioxide, and the object to be treated is deodorized and decolorized. According to this procedure, CaO, Ca at the time of charging the enclosed pack (1) are used.
Since the amount of CO _{3 and the} like floating in water is reduced, high hygiene can be ensured.

If the acid used in the first acid treatment is an inorganic acid (hydrochloric acid) and an organic acid (acetic acid) having a smaller ionization tendency than the inorganic acid is used in the second acid treatment, the amount of carbon dioxide generated can be reduced. Can be more, more noticeable bleaching
Deodorizing effect is obtained.

In the steps shown in FIGS. 4 and 5, only the pearl layer (8) separated from the oyster shell is used. In addition, the oyster shell (5) itself is ground instead of the pearl layer (8). The same effect can be obtained by using the above.

[0028]

As described above, when the water-improving agent-enclosed pack according to the present invention is put into water, the residual acid retained in the pearl layer reacts with the calcium compound contained in the pearl layer or the crushed shell. , It produces carbon dioxide,
The object to be treated (food, etc.) can be easily and safely deodorized and decolorized by the reducibility provided by the nascent carbon dioxide. Also, since the water quality improver is enclosed in the bag,
The water quality improving agent does not disperse in water at the time of use, and therefore, there is no possibility that the water quality improving agent is erroneously taken into the human body when eating or drinking the object to be treated.

[Brief description of the drawings]

FIG. 1 is a perspective view of a water quality improving agent-enclosed pack according to the present invention.

FIG. 2 is an enlarged vertical sectional view of an oyster shell.

FIG. 3 is an enlarged vertical sectional view of a pearl layer.

FIG. 4 is a process chart showing one embodiment of the present invention.

FIG. 5 is a process chart showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Water quality improvement agent enclosure pack 2 Water quality improvement agent 3 Bag 8 Pearl layer 9 Crystalline 10 Amorphous

Claims (1)

(57) [Claims] After drying a pearl layer separated from a shell or a crushed shell by heating, a strain is generated between a crystalline portion and an amorphous portion of the pearl layer to form fine voids therebetween. This pearl layer or shell is immersed in an aqueous acid solution, and while the carbon dioxide is being generated, the pearl layer or the shell is pulled up from the aqueous acid solution to retain the unreacted residual acid in the voids, and then dried to improve the water quality. And a water-permeable bag for enclosing and holding the water quality improving agent.