JPH0231633A - Artificial bait and production thereof - Google Patents

Abstract

PURPOSE:To provide an artificial bait capable of attracting all kinds of fishes, etc., by molding a mixture of a water-soluble polymeric substance, a solvent, an attractive substance, a plasticizer and a gelling accelerator into an artificial bait and forming a slightly soluble thin film on the surface of the prepared bait. CONSTITUTION:Since an artificial bait 1 contains a water-soluble polymeric substance, a solvent, an attractive substance, a plasticizer and a gelling accelerator, the artificial bait 1 has a tough feeling highly similar to an annelid such as a lugworm on the point of softness, elasticity, etc. Since a slightly soluble film 3 is also formed on the outer surface of the artificial bait 1, the whole shape of the bait is maintained as a shape similar to the annelid in sea water, etc., for a relative long time. The attracting substance contained in the bait exudes through the thin film 3 to attract fishes, etc., strongly and, when the fishes, etc., bite off one portion of the artificial bait 1, the gel-like content 2 inside the thin film dissolves out in the sea water, etc., or strengthens the attractive action further, thereby giving a feeling like a natural bait to the fishes, etc.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a lure and a method for producing the same.

[Conventional technology]

When fishing fish and other aquatic animals, natural bait is generally used, but in recent years, natural bait has been used to compensate for the lack of supply of natural bait.
The use of artificial baits is widely practiced to obtain baits of constant quality.

For example, such emergency lures are
Publication No. 3, JP-A-58-501493, JP-A-6
This method has been proposed in Japanese Patent No. 0-94047 and the like.

[Problem to be solved by the invention]

However, the conventional artificial baits proposed in the above-mentioned publications contain attractants that attract fish, etc., but for example, annelids such as sand silkworms, rock clams, and new worms, which are a type of natural bait. Compared to the artificial bait, the entire bait is insoluble, the texture is too hard, and the feel is very different.
Due to the difference in meat quality, the attracting effect of the attractant was inferior to that of natural bait. Furthermore, natural baits have soft flesh like sand silkworms, but no attempt has been made to create artificial baits by changing the flesh quality to imitate this.

Furthermore, when producing artificial baits, no attempts have been made to modify their properties in various ways.

The present invention was made in view of these points, and has a texture similar to that of natural bait, has an excellent attracting effect, and can attract all kinds of fish. An object of the present invention is to provide an artificial bait whose properties can be changed and which can exhibit an attracting action peculiar to an artificial bait while further enhancing the properties of natural bait, and a method for producing the same.

[Means to solve the problem]

According to claim 1, the artificial bait of the present invention contains a water-soluble polymer substance, a solvent, an attractant, a plasticizer, and a gelling promoter, and has a surface formed of a poorly soluble thin film. It is characterized by

Further, according to claim 2, the lure of the present invention contains a water-soluble polymer substance, a solvent, an attractant, a plasticizer, and a gelling promoter, and has a surface with a hardly soluble thin film. It is characterized by having at least one of a fluorescent material and a liquid crystal whose color changes with temperature changes on at least one of the outside of the thin film and the inside of the thin film.

According to claim 3, the method for producing an artificial bait of the present invention includes:
Materials mainly consisting of water-soluble polymer substances, solvents, attractants, plasticizers, and gelling promoters are mixed, heated during or after mixing, and then cooled to a predetermined temperature to produce a melt of the materials. The molten material is molded into a predetermined shape and cooled to form a gel. After the gelled material is removed from the mold, it is immersed in a solvent for a predetermined period of time to form a thin, poorly soluble film on the surface to create an artificial bait. It is characterized by manufacturing.

According to claim 4, the method for producing an artificial bait of the present invention comprises a water-soluble polymeric substance, a solvent, an attractant, a plasticizer, a gelling accelerator, a fluorescent substance, and a color that changes due to temperature changes. Mixing materials mainly consisting of at least one of liquid crystals, heating during or after the mixing, and then cooling to a predetermined temperature to produce a melt of the materials, molding the melt into a predetermined shape, and cooling. gelatinized by
The feature is that after demolding this gelled product, it is immersed in a solvent for a predetermined period of time to form a poorly soluble thin film on the surface to produce an artificial bait.

According to claim 5, the method for producing an artificial bait of the present invention includes mixing materials mainly consisting of a water-soluble polymer substance, a solvent, an attractant, a plasticizer, and a gelling promoter; The material is heated in the middle or after mixing, and then cooled to a predetermined temperature to produce a melt of the material, molded into a predetermined shape, cooled to gel, and after demolding this gel, a solvent is added. The artificial bait is prepared by immersing the bait in the liquid for a predetermined period of time to form a poorly soluble thin film on the surface, and coating the outer surface of the thin film with at least one of a fluorescent substance and a liquid crystal whose color changes depending on temperature changes. Features.

According to claim 6, the method for producing an artificial bait of the present invention includes mixing materials mainly consisting of a water-soluble polymer substance, a solvent, an attractant, a plasticizer, and a gelling accelerator; The molten material is heated during or after mixing, and then cooled to a predetermined temperature to produce a molten material for navigation cables.The molten material is molded into a predetermined shape, and then frozen. The bait is characterized in that it is immersed in an organic solvent for a predetermined period of time to form a poorly soluble thin film on the surface to produce the bait.

According to claim 7, the method for producing an artificial bait of the present invention comprises a water-soluble polymer substance, a solvent, an attractant, a plasticizer, a gelling promoter, a fluorescent substance, and a color that changes due to temperature changes. Materials mainly composed of at least one of liquid crystals are mixed, heated during or after mixing, then cooled to a predetermined temperature to produce a melt of the materials, molded into a predetermined shape, and then frozen. The frozen product is then immersed in a dehydrating organic solvent for a predetermined period of time to form a poorly soluble thin film on the surface to produce an artificial bait.

According to claim 8, the method for producing an artificial bait of the present invention includes mixing materials mainly consisting of a water-soluble polymer substance, a solvent, an attractant, a plasticizer, and a gelling accelerator; The material is heated in the middle or after mixing, and then cooled to a predetermined temperature to produce a melt of the material, this melt is molded into a predetermined shape, then frozen, and after demolding this frozen product, a dehydrating organic solvent is added. The artificial bait is prepared by immersing the bait in the liquid for a predetermined period of time to form an iIl-soluble thin film on the surface, and coating the outer surface of the thin film with at least one of a fluorescent substance and a liquid crystal whose color changes with temperature changes. It is characterized by

[For production]

According to claims 1 and 2, the bait of the present invention contains a water-soluble polymer substance, a solvent, an attractant, a plasticizer, and a gelling promoter, so that it has good softness and elasticity. The texture is very similar to that of annelid animals such as sand silkworms, and since a thin, slightly soluble film is formed on the outer surface, the overall shape remains similar to that of annelid animals in seawater etc. and is relatively stable. It is maintained for a long time, and the attracting substance contained inside oozes out through the thin film, strongly attracting fish etc.
Furthermore, when fish, etc. bite off part of the bait, the gel-like inside of the thin film dissolves into seawater, etc., and the attracting effect becomes even stronger, making it feel like natural bait to the fish, etc. I can do it. In addition, by increasing the amount of solvent for the water-soluble polymer substance, the interior can be made soft, or by decreasing it, the interior can be made harder. And the shape can also be changed. In addition, by adjusting the immersion time when forming a thin film, the thickness of the thin film can be freely adjusted. If the thickness of the film is such that the lure has such a strength, the attracting effect of the lure can be exerted on a predetermined shelf even if the fish etc. do not tear it to pieces. In addition, by placing at least one of a fluorescent material and a liquid crystal whose color changes with temperature changes inside and outside the bait, it is possible to visually attract fish, etc., and the attracting effect is further enhanced. It can be demonstrated.

On the other hand, according to the method for producing an artificial bait of the present invention according to claims 3 to 5, a water-soluble polymer substance, a solvent, an attractant, a plasticizer, and a gelling promoter are mixed and heated. A homogeneous mixture is obtained, and the homogeneous mixture is cooled to produce a moldable melt at a predetermined temperature, and this melt is filled into a cavity in a mold and molded into a shape similar to natural bait. The melt is then gelled by further cooling.

Thereafter, the gelled product is demolded and immersed in a solvent for a predetermined period of time to form a thin film on the outer surface, thereby producing an artificial bait having the above-mentioned excellent characteristics. Further, if at least one of a fluorescent material and a liquid crystal whose color changes with temperature changes is mixed together when producing the melt, it can be placed in the thin film, and after the thin film is formed, the outer surface If it is coated with a coating or the like, it can be placed externally.

Further, according to the method for producing an artificial bait of the present invention according to claims 6 to 8, by mixing a water-soluble polymer substance, a solvent, an attractant, a plasticizer, and a gelling promoter, and heating the mixture. A homogeneous mixture is obtained, the homogeneous mixture is cooled to produce a moldable melt at a predetermined temperature, this melt is filled into a cavity in a mold and molded into a shape resembling a natural bait, and further The melt is frozen by freezing.

Thereafter, the frozen product is demolded and immersed in a dehydrating organic solvent for a predetermined period of time to form a thin film on the outer surface, making it possible to produce a bait having the excellent characteristics described above. Further, if at least one of a fluorescent material and a liquid crystal whose color changes with temperature changes is mixed together when producing the melt, it can be placed in the thin film, and after the thin film is formed, the outer surface If it is coated with a coating or the like, it can be placed externally.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 3.

FIG. 1 shows an embodiment of the artificial bait of the present invention.

The bait 1 of this embodiment is made to resemble a sand silkworm, and a thin film 3 is formed on the outer surface of the inside 2 to maintain its shape.

This interior 2 and thin film 3 are made of a water-soluble polymer substance, a solvent,
It is formed from a mixture of materials mainly consisting of an attractant, a plasticizer, and a gelling promoter.

The water-soluble polymeric substance in the material is the base material for the bait, and includes synthetic products such as polyvinyl alcohol, polyethylene oxide, and sodium polyacrylate, as well as natural products such as carboxymethyl cellulose sterium, agar, and gelatin. All kinds of materials can be used, and it is preferable to select one or more kinds from among these materials.

In addition, the solvent melts the water-soluble polymer substance, promotes mixing with other materials, and adjusts the softness of the interior of the lure as appropriate by adjusting the amount of the water-soluble polymer substance. It is.

In addition, the attractant is one that attracts fish etc. toward the bait by odor, and any attractant may be used as long as it has an attractant component.
Examples include krill extract called KX, extracts extracted from natural products, and/or chemically synthesized attractants, and one or more of these may be selected and used as required.

In addition, the plasticizer is used to maintain the softness of the entire bait when mixed with a water-soluble polymeric substance, and because it retains the solvent in the material inside, it is insoluble in the solvent and difficult to volatilize. It is preferable to use a solvent or the like that has certain properties. Any plasticizer having such properties can be used, such as fish oil.

In addition, a gelling accelerator is a substance that imparts regularity to a mixture of materials in a molten state during the bait manufacturing process to form a bait with a predetermined shape, and if it has such an effect, it can be used. Either can be used. For example, Na
Monovalent or polyvalent gold f such as CfJ, KCj, Ca salt, etc.
It is preferable to use one or more of f-salts and solvents having a gelling action such as ethanol, acetic acid, and acetone.

Further, each of the above-mentioned materials may have the properties of a plurality of materials. For example, the solvent also serves as a plasticizer, and some KX, which is a type of attractant, contains metal salts such as NaCl.

Next, a method for manufacturing the pseudo fj11 will be described according to claim 3.

First, the water-soluble polymeric substance, solvent, which is the material of lure 1,
The attractant, the plasticizer, and the gelation promoter are mixed for a time depending on the texture and other properties of the bait to be produced, and
A starch syrup-like melt is produced by heating while mixing or by heating after mixing. This high-temperature melt is then cooled to produce a melt at a temperature suitable for molding.

In the previous steps, the materials constituting the bait are uniformly mixed, and the plasticizer suppresses the release of solvent from the mixture, allowing the bait to retain its softness.

As a reward, this WJ melt is filled and molded into a cavity shaped like a natural bait in a female mold using an appropriate means such as an injection molding machine or an extruder, and then left in the mold. A gelatinized product is produced by cooling the mixture while it is allowed to cool.

This gelation is carried out in a short time by the action of a gelation promoter. In particular, when a solvent such as ethanol, acetic acid, or acetone is used as a gelation promoter, gelation occurs quickly and molding is easy.

Thereafter, the gelled product is removed from the mold. This gel is self-retained in the shape of a cavity, that is, the shape of a natural bait.

Thereafter, the gelled product is immersed in a solvent for a predetermined period of time to exert a stronger affinity than the water-soluble polymer substance possessed by the solvent, forming a poorly soluble thin film 3 on the surface, resulting in a pseudo-like structure as shown in Figure 1. Make bait 1.

Since the artificial bait 1 of the present invention contains a water-soluble polymer substance, a solvent, an attractant, a plasticizer, and a gelling promoter, it has a texture such as softness and elasticity that closely resembles that of annelids such as gold dust. In addition, since a sparsely soluble thin film 3 is formed on the outer surface, the overall shape remains similar to that of the annelid for a relatively long time in seawater, etc., and through the thin film 3 The attractant substance contained inside exudes and strongly attracts fish, etc., and furthermore, when the fish etc. bites off a part of the bait 1, the gel-like interior 2 inside the thin skin ll1I3
It dissolves into seawater, etc., and the attracting effect becomes even stronger, making it feel like natural bait to fish.

In addition, the amount of solvent relative to the water-soluble polymer substance and also 1
By controlling the amount of engineered plasticizer, metal salt, and solvent, the interior can be made soft or hard at will. The nature and shape of can also be varied.

Further, it is preferable to adjust the thickness of the thin skin liquid 3 of the artificial bait 1 by changing the immersion time in the solvent of the gelled product after demolding. In this case, the shorter the immersion time, the thinner the skin liquid 3 becomes. For example, if the thickness of the thin film is such that it will automatically break under water pressure when it reaches a predetermined underwater depth, the attracting effect of the bait can be maintained at a predetermined shelf even if the fish do not bite it. It can also be demonstrated in

Moreover, the inside 2 flows out to the outside all at once, and a large attracting effect can be exerted.

Moreover, the pseudo f! [11] The manufacturing method will be described according to claim 6.

In this embodiment as well, the process is similar to that of the previous embodiment until the melted material of the lure 1 is molded.

In this example, this molded molten material is frozen all at once by freezing, and the frozen material is made into a peritoneal shape, and the frozen material is immersed in a dehydrating organic solvent for a predetermined period of time to form a slightly soluble material on the surface. This forms a thin film 3. As the dehydrating organic solvent, edyl alcohol, acetone, etc. can be used.

By doing as in this embodiment, the interior 2 of the bait 1 can be made very soft, so that when the thin film 3 is torn off by a fish or the like, a large amount of the interior 2 leaks out at once. ,
It has a great attracting effect.

Furthermore, by adjusting the time during which the frozen product is immersed in the organic solvent, the thin film 3 can be formed to a desired thickness similarly to the embodiments described above.

Furthermore, in addition to the attracting effect of the attracting substance that is the material of the interior 2, it is also possible to manufacture the artificial bait 1 that has a visual attracting effect.

That is, as in claim 2, by disposing at least one of a fluorescent material and a liquid crystal whose color changes depending on temperature changes outside or inside the thin film 3 of the lure 1, fish, etc. can be visually attracted. The fluorescent substance emits fluorescence in the water, thereby attracting fish and the like having a fluorescent property to the artificial bait 1. Furthermore, since the color of the liquid crystal changes as the water temperature changes when the artificial bait 1 sinks into the water, it attracts fish etc. not only by its light-tracing properties but also by confusing it with the live bait. Furthermore, if a fluorescent material and a liquid crystal are used together, the attracting effects of each will work together, and the attracting effect of the attracting substance will also work together, creating a pseudo f! It can exert the unique attracting effect of A1.

Such fluorescent substances and liquid crystals are used as pseudo f! [In order to dispose these minute objects in the thin film 3, as shown in claim 4 or 7, these minute objects are mixed together with the material of the interior 2 to be provided inside the thin film 3. As shown in item 5 or item 8, it can be disposed outside the thin film 3 by directly coating the thin film 3 or by coating with a transparent adhesive medium.

Next, specific examples of the present invention will be described.

Example 1 The contents and amounts in this example are as follows.

1) Approximately 100 g of polyvinyl alcohol as a water-soluble polymer substance 2) Approximately 500 g of boiled water as a solvent 3) Approximately 300 to 35 g of krill extract as an attractant
0g, the number of attractants is 9-10.53 4) Fish oil as a plasticizer, approximately 60-10595) Hinetress (75% ethanol solution for food additives) as a gelling promoter, approximately 30-5g 6) Others Approximately 15 to 17.5 g of seaweed extract was used.

Among these, the krill extract used contained 751% by weight of water, 10% by weight of amino acids, and 15% by weight of NaC11.

Then, using these materials, artificial bait 1 was manufactured according to the following steps.

First, polyvinyl alcohol and boiling water are stirred and mixed to prepare a syrup-like liquid, and at the same time, a mixed liquid of other materials is separately prepared.

Next, the starch syrup liquid and the mixed liquid are stirred and mixed to uniformly mix the entire mixture.

Next, this mixture is stirred and mixed while heating to mix the above-mentioned materials more uniformly, thereby producing a molten material. The degree of heating in this case is such that each material is mixed uniformly, and it is sufficient to raise the temperature to an appropriate temperature while checking the mixing condition, and if necessary, the melt may be boiled. Although the melt was boiled in this example, it is not necessary to boil it because mixing can be improved when an emulsifier is used.

Heating is then stopped and the melt is allowed to cool to about 40° C., which is suitable for molding, and maintain that temperature.

Next, this molten material at a predetermined temperature is filled into a cavity of a female mold shaped to resemble natural bait, such as gold dust, and molded.

Next, this mold is placed in an atmosphere at about -30° C. for about 1 hour or more to gel the melt.

Next, after demolding this gelled product, it is immersed in a solvent for a predetermined period of time to form a thin film 3 on the surface to produce an artificial bait 1,
Thereafter, the bait 1 is taken out of the solvent.

The artificial bait 1 of this example manufactured in this way contains the above-mentioned materials, so it has a feel such as softness and elasticity, and a shape that closely resembles that of gold dust. Because the soluble thin film 3 is formed, the overall shape remains similar to gold dust in seawater etc. for a relatively long time.
The attracting substance contained inside the thin film 3 oozes out and strongly attracts fish and the like.
Furthermore, when the fish etc. bite off a part of the bait 1, a thin film 3 is formed.
The gel-like interior 2 dissolves into seawater, etc., and the attracting effect becomes even stronger, making it feel like gold dust from natural bait to fish.

Furthermore, by increasing the amount of solvent in the polyamide alcohol, it is possible to make the interior 2 softer, or by adding less solvent, it is possible to make the interior 2 harder. can also be changed.

In the above embodiment, the polyvinyl alcohol, the solvent, and the other materials were mixed separately and then the whole was mixed, but even if all the materials were mixed together from the beginning, the above embodiment It was possible to produce an excellent artificial bait 1 similar to the above.

Example 2 The content components and denominators in this example are the same as in Example 1 above.

In this example, the steps from filling the molten material into the cavity of the female mold to molding are the same as in Example 1.
It is done as follows.

The mold is then rapidly cooled to freeze the melt.

Next, after demolding this frozen product, it is immersed and crushed in a dehydrating organic solvent for a predetermined period of time in an atmosphere at room temperature to form a thin film 3 of a predetermined thickness on the surface to produce an artificial bait 1. The bait 1 is taken out of the organic solvent.

The artificial bait 1 of this example produced in this way also exhibited excellent attractivity as in the previous example. In particular, when the inside 2 becomes very soft and the thin film 3 is broken, a large amount of the soft inside dissolves into the water at once, exerting a large attracting effect.

Further, in each of Examples 1 and 2, the thin film 3 having the desired thickness as described above can be formed by adjusting the immersion time in the solvent or organic solvent for forming the thin film 3. I can do it.

Further, in each of the first and second embodiments, when mixing the materials for the interior 2, a fluorescent material and/or a liquid crystal microscopic object is mixed together, and J'1. When the lure 1 was manufactured using the same process, the fluorescent material and/or liquid crystal could be incorporated inside the thin film 3.

In addition, by coating the outer side of the thin film 3 of the lure 1 produced in each of Examples 1 and 2 with a fluorescent material and/or liquid crystal minute object directly or using a transparent adhesive, Fluorescent material and or liquid crystal could be placed in it.

In this way, fluorescent substances and/or liquid crystals can be placed on the outside and/or inside of the thin film 3, and the obtained artificial bait 1 has characteristics close to natural bait as described above, and can be used to attract fish etc. It has unique characteristics that visually attract it, such as changing its color to give the illusion that it is live bait.

Incidentally, the bait 1 of each of the above embodiments is formed of a single mixture of the above-mentioned materials, but as shown in FIG. As shown in FIG. 3, another attractant 5 or the like may be injected inside. Note that the core material 4 may be impregnated with an attractant, or the natural bait may be used as it is as the core material. The core material 4 shown in FIG. 2 may be encapsulated at the same time during molding, or may be inserted into the single product shown in FIG.

Further, the present invention is not limited to the above embodiments, and can be modified as necessary.

〔Effect of the invention〕

Since the artificial bait and the WA manufacturing method of the present invention are constructed and function in this way, the texture and shape are similar to natural bait, and the lure has an excellent attracting effect and can attract all kinds of fish. It is possible to obtain an artificial bait that can be used as a bait, and the properties and shape can also be changed according to the properties and shape of the natural bait, and furthermore, the characteristics and shape of the natural bait can be further enhanced while exhibiting the attracting effect unique to the artificial bait. It has the following effects:

[Brief explanation of the drawing]

FIGS. 1 to 3 are partially cutaway perspective views showing embodiments of the bait of the present invention. 1...Artificial bait, 2...White part, 3...Thin film, 4...
...core material, 5...attractant. Figure 1 Figure 3

Claims (1)

[Claims] 1) a water-soluble polymeric substance, a solvent for the water-soluble polymeric substance (
An artificial bait containing an attractant (hereinafter referred to as a solvent), an attractant, a plasticizer, and a gelling promoter, and whose surface is formed with a thin film that is hardly soluble. 2) Contains a water-soluble polymer substance, a solvent, an attractant, a plasticizer, and a gelling promoter, and the surface is formed of a poorly soluble thin film, and the outside and inside of the thin film An artificial bait having, on at least one side, at least one of a fluorescent substance and a liquid crystal whose color changes depending on temperature changes. 3) Materials mainly consisting of a water-soluble polymer substance, a solvent, an attractant, a plasticizer, and a gelling promoter are mixed, heated during or after the mixing, and then cooled to a predetermined temperature to form a melt of the materials. and mold this melt into a predetermined shape,
It is gelled by cooling, and after demolding this gelled product, it is immersed in a solvent (hereinafter referred to as a solvent) that has a stronger affinity for the solvent of the water-soluble polymer substance than that of the water-soluble polymer substance for a predetermined period of time. 1. A method for producing an artificial bait, which comprises forming an artificial bait with a thin, slightly soluble film. 4) Mixing materials mainly consisting of at least one of a water-soluble polymer substance, a solvent, an attractant, a plasticizer and a gelling promoter, and a fluorescent substance and a liquid crystal whose color changes with temperature changes, and during or after the mixing. The material is heated, then cooled to a predetermined temperature to produce a melt of the material, molded into a predetermined shape, cooled to gel, and after demolding this gel, it is immersed in a solvent for a predetermined period of time. 1. A method for producing an artificial bait, characterized in that the artificial bait is manufactured by immersing the bait to form a poorly soluble thin film on the surface. 5) Materials mainly consisting of a water-soluble polymer substance, a solvent, an attractant, a plasticizer, and a gelling promoter are mixed, heated during or after the mixing, and then cooled to a predetermined temperature to form a melt of the materials. and mold this melt into a predetermined shape,
It is gelled by cooling, and after demolding this gelled product, it is immersed in a solvent for a predetermined period of time to form a poorly soluble thin film on the surface, and the outer surface of this thin film changes color due to fluorescent substances and temperature changes. 1. A method for producing an artificial bait, characterized in that the artificial bait is manufactured by coating at least one of liquid crystals. 6) Mixing materials mainly consisting of a water-soluble polymer substance, a solvent, an attractant, a plasticizer, and a gelling promoter, heating during or after the mixing, and then cooling to a predetermined temperature to create a melt of the materials. and mold this melt into a predetermined shape,
A method for producing an artificial bait, the method comprising: freezing the frozen product, demolding the frozen product, and then immersing it in a dehydrating organic solvent for a predetermined period of time to form a poorly soluble thin film on the surface to produce an artificial bait. . 7) Mixing materials mainly consisting of at least one of a water-soluble polymer substance, a solvent, an attractant, a plasticizer, a gelling promoter, and a fluorescent substance and a liquid crystal whose color changes with temperature changes, and during or after the mixing. The material is heated and then cooled to a predetermined temperature to produce a melt of the material, this melt is molded into a predetermined shape, then frozen, and after the frozen product is demolded, it is placed in a dehydrating organic solvent for a predetermined period of time. 1. A method for producing an artificial bait, characterized in that the artificial bait is manufactured by immersing the bait to form a poorly soluble thin film on the surface. 8) Mix materials mainly consisting of a water-soluble polymer substance, a solvent, an attractant, a plasticizer, and a gelling promoter, heat during or after the mixing, and then cool to a predetermined temperature to create a melt of the materials. and mold this melt into a predetermined shape,
After that, it is frozen, and after demolding this frozen product, it is immersed in a dehydrating organic solvent for a predetermined period of time to form a poorly soluble thin film on the surface, and the outer surface of the thin film changes color due to fluorescent substances and temperature changes. 1. A method for producing an artificial bait, characterized in that the artificial bait is manufactured by coating at least one of liquid crystals.