JPH09172929A - Water degradable sheet for fishing and bag of chum for fishing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a water degradable sheet for fishing capable of being dissolved and degraded and thoroughly expressing effects of fishhook bait and chum by using a water soluble material such as carboxymethyl cellulose as a base material and adding water insoluble inorganic fine particles in the base material. SOLUTION: This water degradable sheet is prepared by using (A) a water soluble or water degradable carboxymethyl cellulose or its analog as a base material, adding (B) water insoluble or slightly soluble inorganic fine particles (e.g. kaolin, etc.), and further preferably dispersible fiber in water for papermaking to the base material and forming a water soluble layer 3 at least on one surface of the sheet. A bag 1 of chum for fishing can be obtained by single wrapping the chum 5 with the water degradable sheet 2 for fishing and the weight ratio of the components A/B is preferably 40/60-15/85.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-decomposable sheet for fishing, which is packaged with sashimi or bait and is controlled so as to dissolve and disintegrate when it reaches a predetermined fish layer position such as seawater. The present invention relates to a bait bag that is unit-packed with a sheet and is particularly suitable for use as a bait for sea fishing, such as shore fishing basket fishing, fukase (dango) fishing, ship fishing bishi fishing, barb fishing and rust fishing.

[0002]

2. Description of the Related Art Conventionally, as bait for fishing, bait which is stabbed in a hook and directly catches fish in the form of a hook, a weight, and a path system, that is, a bait and a bait used for collecting fish. There is.

In this case, the conditions in which the two sink into the water do not coincide with each other due to different conditions, and as a result, the position of the bait, that is, the position where the fish gather and the position of the stab bait, that is, the position where the fish are caught are different. The catching effect of the bait may not be fully exerted.

For this reason, a container (comase basket) for suspending the bait hanging on the fishing line has been developed, and the cocas basket that is filled with the bait is submerged in the water together with the sashimi, and the bait is gradually dispersed to efficiently distribute the baker. Suggestions for use have been made. That is, a proposal for various structures of a container for storing bait, commonly known as a Komase container (Japanese Patent Publication No. 51-38631, Japanese Utility Model Publication No. 47-
No. 31824, No. 60-168378, No. 61-168
No. 4582), a bait tool (Japanese Patent Publication No. 59-53009), and a device for reversing the bait container (Japanese Patent Laid-Open No. 59-17).
9029) and a bait device (Japanese Patent Laid-Open No. 6-327386).
No. 7-143835), and a proposal for a comass package (JP-A-57-202235, 61-8).
1745, 64-63326, JP-A-5-493.
No. 74, etc.) are known.

[0005]

However, the above-mentioned conventional bait tool has some problems, and it has not yet been able to achieve a satisfactory fish catching effect of bait.

That is, most of the bait baskets (coma baskets) used as a bait tool are not limited to those released through a large number of bait-releasing openings provided in the bait-filling formation wall.
Food that is released from the time it reaches the water will be eaten by small fish just below the surface of the water. In addition, even if a fish swimming below a certain water level is caught, most of the bait is released by the time the water reaches the same level, and when the float stands, the bait becomes thin around the hook and the fish has an opportunity to eat the hook. As a result, the fish were missed without the effect of collecting the bait.

Furthermore, because the amount of bait that can be put into the bait basket is small, or due to the impact when the bait basket is put into seawater, the bait flows out in a short time, and effective bait cannot be spread. In some cases, when the bait basket is lowered to the required depth in the water, the bait may flow out from the opening during the lowering, and the bait basket cannot be lowered into the deep water.

On the other hand, as a method for sprinkling fishing comas for collecting fish, roughly, scoop up the defrosted comers by the fisherman in the comasses baskets or nets, and then prepare by putting the mechanism into the sea. I tried to sprinkle Komase.

For this reason, conventionally, it takes a lot of time to put the comasses into the basket due to the fact that the comasses are directly handled in a loose condition at the fishing ground, and a part of the comases is spilled during this work. The fisherman's body, boat, fishing equipment, etc. may get dirty or have a bad odor, and from the viewpoint of function, most of the comasses are scattered in the middle when they are lowered into the underwater fish layer. The fishing ground was polluted and there was an environmental problem.

The present invention solves the above-mentioned conventional drawbacks, and is water for fishing which can dissolve and disintegrate when it reaches a predetermined position such as seawater of a fishing ground, and can sufficiently exert the effects of stab bait and bait. An object is to provide a degradable sheet and a fishing bait bag unit-wrapped with this sheet.

[0011]

Means for Solving the Problems and Embodiments of the Invention In order to achieve the above-mentioned object, the present invention is based on water-soluble or water-degradable carboxymethyl cellulose or carboxyethyl cellulose as a base material, and is a water-insoluble or sparingly water-soluble inorganic powder. Provided is a water-decomposable sheet for fishing, characterized in that the body is internally added. In addition, there is provided a fishing bait bag in which bait is unit-wrapped with this water-degradable sheet.

According to the present invention, by using as the water-decomposable sheet a water-soluble or water-decomposable carboxymethyl cellulose or carboxyethyl cellulose as a base material to which water-insoluble or poorly water-soluble inorganic powder is internally added, seawater or the like can be used. The time required for disintegration is delayed, and it is possible to control so that it dissolves and disintegrates when it reaches a predetermined position of seawater, and the sheet is hydrolyzed (disintegrated) until the packaged sashi bait or sprinkle bait reaches the desired fish layer. Since the stab bait is not eaten by surface fish during sinking, and the bait is not wastefully dissipated from the bait bag during sinking, the effect is maintained for a long time in the fish layer that requires the fish collecting effect of the bait. Therefore, the target fish can be efficiently caught.

Since the present bait bag can be prepared as a bait bag in a unit package in advance, it is not necessary for a fisherman to directly touch the bait (komase) with his / her hands, and the fisherman spills the comas The body, the boat and the surrounding environment such as fishing equipment will not be polluted and no odor will be left around. Moreover,
It does not pollute the sea because the bait does not scatter until it reaches the desired fish layer, and is environmentally friendly. Furthermore, when sprinkling bait, only the work of mounting the bait bag is required, and speedy loading work is possible.

Further, if the bait is placed in a bag of a water-disintegratable sheet using water-disintegratable sheets having different disintegration rates (water-decomposability) in seawater, and it is put in a normal Komasekago and used, it will give a predetermined amount in water. Until the depth is reached, the bait is not dissipated from the bag, so the bait is not wasted and no small surface fish are attracted. In this case, if you wrap the hook hooked with sashimi with the bait with this water-disintegratable sheet to make a dango bait, the fish will not eat the bait until it reaches a predetermined depth in the water, so the surface layer The trouble of catching small fish disappears.

The bait bag of the present invention allows the type of bait to be changed in one bait bag at the stage of preparing the bait bag, and when the bait is thrown in, it is most suitable among various bait. Since it is possible to select and use the above bait, it is possible to collect fish more effectively. Further, in this case, since the sowing bait which is filled in the bait bag can use so-called powdered matter, it is possible to set a wide emission range,
The effect of collecting fish can be further improved.

[0016] Conventionally, the used bait which has not been used is normally not collected and thrown as it is. However, since the bait bag of the present invention is packaged in a unit, it is easy to use and the extra bait is left as it is. Since it can be brought back and used again, there is no waste.

The present invention will be described in more detail below. The fishing water-decomposable sheet of the present invention comprises a water-insoluble or water-decomposable carboxymethyl cellulose (CMC) or carboxyethyl cellulose (CEC) water-insoluble or sparingly water-soluble inorganic powder. The body is internally added.

Here, the CMC used in the present invention
Alternatively, CEC has a structure in which a part of the hydroxyl groups of cellulose is substituted with a carboxymethyl group or a carboxyethyl group, and the solubility behavior varies depending on the substitution degree (DS) per glucose unit, and the preferred range of DS is 0.
It is 1 to 1.0, particularly 0.2 to 0.8. DS is 0.1
If the amount is less than the range, papermaking is easy, but the solubility may deteriorate. On the other hand, when the DS exceeds 1.0, the swelling of the fiber becomes remarkable, the papermaking becomes difficult, and the blunt phenomenon (gelation, lumpy state) occurs and the solubility may deteriorate.

In the present invention, as the water-soluble or water-degradable CMC or CEC, its alkali metal salt can be used. However, when the sheet is manufactured, the water-insoluble fibrous CMC or CEC is used to manufacture the sheet. From the standpoint of ease of production of the sheet, it is preferable to give water-solubility or water-decomposability by performing an alkali treatment at a necessary stage, particularly as described later, at an appropriate stage of forming a wet paper web.

In this case, the fibrous CMC or CEC in the water-insoluble state is CMC-H or CEC in the free acid state.
-H and various other salts such as calcium salt, aluminum salt, barium salt, zinc salt, tin salt, manganese salt and the like can be used, and CMC or CEC salt in a water-insoluble state can be used alone or Two or more kinds can be used in combination. In this case, of these,
An acid type, a calcium salt type, or a mixed salt type containing a calcium salt is preferably used.

As the water-insoluble or sparingly water-soluble inorganic powder of the present invention, it is preferable to use a non-metal inorganic substance, a metal, a water-insoluble (slightly) soluble salt or the like, and specifically, a metal such as aluminum oxide or titanium oxide. Oxides: Carbides such as silicon carbide and iodine carbide; Nitride such as trisilicon tetranitride and boron nitride; Metal hydroxides such as aluminum hydroxide and magnesium hydroxide; Mica, feldspar group, silica mineral group, clay mineral , Silicate minerals such as synthetic zeolite and natural zeolite; titanate compounds such as potassium titanate and barium titanate;
Carbonate compounds such as calcium carbonate, barium carbonate, magnesium carbonate and zinc carbonate; sulfate compounds such as barium sulfate, calcium sulfate and strontium sulfate; zinc silicate;
Examples thereof include silicate compounds such as magnesium silicate, calcium silicate, and barium silicate; and phosphate compounds such as zinc phosphate. These can be used alone or in combination of two or more. In this case, among the inorganic powders, zeolite, kaolin, talc, and calcium carbonate are preferably used.

The weight ratio of CMC or CEC to the inorganic powder is an important factor for controlling the solubility, and the solubility varies depending on the weight ratio of CMC or CEC / inorganic powder, and CMC or CEC ( If the amount of a) is too large, the solubility will be poor due to the entanglement of CMC or CEC with water (leaving phenomenon, gelation), while if the amount of the inorganic powder (b) is too large, the solubility will be good. However, papermaking becomes difficult and paper strength becomes weak. Therefore, the weight ratio of both is (a)
/ (B) = 90/10 to 5/95, more preferably 60
/ 40 to 10/90, more preferably 40/60 to 15
It is preferably in the range of / 85.

The water-decomposable sheet of the present invention may further contain water-dispersible papermaking fibers internally in view of wet strength, disintegration property and papermaking property. The water-dispersible fiber for papermaking is not particularly limited as long as it is a fiber material having essentially the ability to disperse in water, and wood pulp fiber, non-wood plant fiber, rayon fiber and the like can be used. Specifically, kraft pulp or sulfite pulp for papermaking, preferably used dissolving pulp for synthetic fiber, straw pulp, plant fibers such as hemp pulp, cotton pulp, synthetic fibers such as polyamide, polyester, and the like, Further, inorganic fibers such as glass fiber, asbestos, mac wool, slag wool, silica wool, silica alumina wool and the like can be used.

The fiber length of the water-dispersible papermaking fiber is generally 1 mm or more and about 40 mm or less, more preferably about 3 mm.
It is preferably 0 mm or less, more preferably 20 mm or less. When a fiber having a fiber length of more than about 40 mm is present in a sheet-shaped body in a considerable amount, the fiber is dispersed in water and becomes disjointed, but the length tends to form a “nose” of the fiber, May impair diffusion. On the other hand, if the fiber length is shorter than 1 mm, the effect of improving the wet strength of the obtained sheet-shaped body may be reduced.

The mixed amount of the above water-dispersible papermaking fibers is
The total amount of (a) CMC or CEC and (b) inorganic powder is preferably 50% by weight or less, more preferably 5 to 20% by weight. If the amount of mixed paper exceeds 50% by weight, the binding of fibers in water is likely to occur. On the other hand, if the amount of the fibers used is too small, the effect of improving the wet strength may not be sufficiently obtained.

The method for producing the water-decomposable sheet of the present invention is not particularly limited, but the following method can be preferably used, that is, first, fibrous CMC in a water-insoluble state such as CMC-H.
Alternatively, an inorganic powder is added to CEC and, if necessary, water-dispersible papermaking fibers are dispersed in water together with other additives to prepare a papermaking raw material. This papermaking raw material (paper material) is supplied to a wire part (long net portion, circular net portion) of a paper machine such as a fourdrinier paper machine or a round net paper machine to form a wet paper. This wet paper is then sequentially transferred to a press part (pressing part) and a dry part (drying part), dehydrated and dried to obtain a sheet-like body.

In this case, if the above-mentioned wet paper is directly formed into a sheet-like body, the obtained sheet-like body does not show sufficient water-solubility or water-decomposability. Therefore, the wet paper is made water-soluble or water-degradable by adding an alkaline agent by spraying, impregnating, coating or the like at an appropriate stage. The solubility can be controlled by the amount and type of the alkaline agent added.

Examples of the alkaline agent include hydroxides such as sodium hydroxide and potassium hydroxide; sodium carbonate,
Carbonates such as potassium carbonate; borates such as borax; phosphates such as dibasic sodium phosphate; silicates such as sodium silicate; and mixtures thereof. When the wet paper is mainly composed of CMC-H or CEC-H, the amount of the alkali agent added is C contained in the wet paper.
It is preferable that the neutralization equivalent of MC-H or CEC-H is equal to or more than the neutralization equivalent, and in particular, 1 to 2 times the neutralization equivalent in consideration of deterioration of the water-soluble or water-decomposable sheet due to aging.

Here, the thickness and basis weight of the water-decomposable sheet are
It is not particularly limited and can be appropriately selected according to the control of disintegration and water depth, or when strength is required depending on the amount of bait to be packed, etc., but the thickness of the water-decomposable sheet is 80 to 300 μm, particularly 100 to 150 μm is preferable, and the basis weight is 60 to 120 g / m ² , particularly 80 g / m ² .
It is preferably about m ² .

Further, a water-soluble polymer layer can be formed on at least one surface of the water-decomposable sheet, whereby the dissolution rate of the sheet can be controlled and the water-soluble polymer layer has a heat-sealing property. If you are
When a container (packaging body) is made from this water-decomposable sheet, and when the bait is filled / enclosed, it is not necessary to use an adhesive such as a heat sealant separately, and workability is improved. Here, as the water-soluble polymer substance, a water-soluble polymer having a heat-sealing property, for example, polyvinyl alcohol, polyethylene oxide resin, polyvinyl ether, polyvinylpyrrolidone and the like can be mentioned.

This water-soluble polymer layer is formed by molding a water-soluble polymer substance on a film by a method such as casting or melt molding, and using CMC or CEC as a base material by a dry lamination method or an extrusion lamination method. The water-decomposable sheet may be laminated and integrated, or a film may be formed on the water-decomposable sheet by an aqueous solution casting method or the like to be laminated and integrated. Here, as the polyvinyl alcohol among the water-soluble polymer substances, the average degree of polymerization is 200 to 200.
Those having a saponification degree of 0 to 80 to 95 mol% are preferable. This polyvinyl alcohol has the property of becoming insoluble in cold water if the degree of saponification becomes too high. On the other hand, when the saponification degree is lowered, the hydrophobicity becomes stronger and the cloud point is lowered to become insoluble in warm water, and when the saponification degree is further lowered, the water becomes insoluble.
Therefore, it is also possible to introduce various modifying groups into polyvinyl alcohol for modification, for example, anion-modified polyvinyl alcohol having carboxylic acid groups introduced, nonion-modified polyvinyl alcohol modified with olefin, cation-modified polyvinyl alcohol, etc. Polyvinyl alcohol is used. In particular, it is effective to use a modified polyvinyl alcohol when dissolution in seawater is required.

The attached amount of the water-soluble polymer substance is (A)
Weight ratio of water-decomposable sheet to (B) water-soluble polymer layer (A) / (B) = 99.5 / 0.5 to 10/90, more preferably 90/10 to 50/50, and further preferably Is 8
The range of 0/20 to 60/40 is preferable.

The thickness of the water-decomposable sheet on which the water-soluble polymer layer is laminated is not particularly limited and can be appropriately changed.
It can be set by the depth of seawater to enable control of the disintegration time, but generally 80-300μ
It is preferably about m, particularly about 90 to 200 μm. In addition,
When a polymer film is laminated as the water-soluble polymer layer, the thickness is preferably about 5 to 150 μm, and particularly preferably about 10 to 60 μm.

The water-decomposable sheet of the present invention can be used by wrapping stab bait or sprinkle bait. In this case, the bait for fishing of the present invention is one in which bait is unit-packaged with this water-decomposable sheet, and at this time, a bag-shaped container or the like is made of the water-decomposable sheet, and a predetermined amount of fishing is put therein. The bait for bait can be packaged in a unit by filling the bait for bait, or filling the bait for bait between two sheets and sealing the opening with an adhesive or the like.

[0035] The sprinkling bait for fishing used in the present invention is not particularly limited, and fish meal, yeast, oatmeal, seaweed meal, shrimp meal, gluten, cod liver, chlorophyll, etc., which are commonly used for bait. It is possible to use those obtained by coating the above with gelatin to form various shapes. Specifically, the comace to be packaged in a unit with a water-decomposable sheet may be, for example, shrimp, minced fish meat, fish meal, etc., which are powder, granular,
It is preferable to use it by drying it in a lump form, and in particular, since powder can be used, it is possible to set a wide emission range and further improve the fish collecting effect.

Such a bait bag will be described with reference to the drawings. FIGS. 1 and 2 show an example of the bait bag 1 of the present invention. In this fishing bait bag 1, two water-decomposable sheets 2 and 2 are superposed so that water-soluble polymer layers 3 and 3 having heat sealability formed on one surface thereof face each other, and both side edges thereof are formed. And a lower edge portion is heat-sealed 4 to form a bag body, a predetermined amount of bait 5 is put in the bag body, and the upper edge portion of the bag body is heat-sealed 4 to package the bait food in a unit package. is there. This fishing bait bag 1 is shown in FIG.
As shown in FIG. 5, it can be used by putting it in the fishing coma basket 6.

The form of the fishing bait bag is not limited to that shown in FIG. For example, FIG. 4 shows a dango bait 9 in which the fishing bait 8 is attached to the hook 7 and is covered with the water-disintegratable sheet 2, but the bait may be covered in such a manner.

The water-decomposable sheet of the present invention and a method of using the fishing bait bag unit-packaged with the water-degradable sheet will be specifically described below. The bait is produced by the disintegration (hydrolysis) of the fish, and it is not necessary to spread the bait by moving the fish or the tip of the fish up and down as in the conventional case. In addition, basket fishing is a nylon basket (Esago basket)
When the bait bag is put in and the bait reaches Tana, the bag spontaneously collapses and the bait spreads out, so it is not necessary to pull the fish around as in the past. Also, if the bait is wrapped with the water-degradable sheet and covered so that it will collapse and appear when it reaches Tana, it is not necessary to use an inverted basket. In sabiki fishing, we put a bait bag in a small Komasekago, drop the tackle to Tana, the bag naturally collapses and the bait disperses, so it is necessary to scoop the basket as in the past to disperse the bait. No, you just have to raise and lower Sao slowly. In addition, there are two types of bark fishing, Fukase fishing and exploratory fishing. In exploratory fishing, dango bait is thrown so that it falls to the feet. In each case,
If the dango breaks at the bottom, feed it on the seabed and wait for Atari. However, when throwing a dango, the dango may be destroyed by the impact of reaching the sea surface.

Therefore, the dango is wrapped in a water-decomposable sheet,
You can cover the destruction by throwing it in, you can sink it to the seabed while maintaining its massive outer shape, and the dango bait naturally cracks, the feeding food jumps out,
It facilitates the biting of fish.

[0040]

INDUSTRIAL APPLICABILITY The water-degradable sheet for fishing and the bait bag of the present invention can be dissolved and disintegrated when reaching a predetermined position such as the sea of a fishing ground, and the effects of stab bait and bait can be sufficiently exerted. .

[0041]

EXAMPLES The present invention will be described below in detail with reference to Examples and Comparative Examples, but the present invention is not limited to the following Examples.

Example 1 Fibrous CMC-H (ether
Degree of conversion DS = 0.65; manufactured by Nichirin Chemical Co., Ltd.) 60 parts by weight and
Zeolite (A type, Na_TwoO ・ 2SiO_TwoAl_TwoO_Three・ 4.
5H_TwoO; manufactured by Mizusawa Chemical Co., Ltd.) 40 parts by weight of mixed papermaking raw material
Square sheet machine
Hand-made sheet (made by Kumagai Riki Kogyo Co., Ltd.)
g / m^Two)made.

The obtained sheet was dried into a sheet by a roll rotary dryer at 110 ° C., impregnated with a 50% methyl alcohol solution containing 5% by weight of sodium hydroxide, and then dried at 105 ° C. , Sample No. 1 in Table 1. A water-decomposable sheet of No. 1 was prepared.

[Example 2] Sample No. 1 obtained in Example 1 1
The water-decomposable sheet has an average polymerization degree of 500 and a saponification degree of 88.2.
Molar% polyvinyl alcohol aqueous solution (solid content 2
Water-soluble polymer layer (coating amount 9 g / m ² )
Sample No. A water-decomposable sheet of 2 was prepared.

Example 3 60 parts by weight of fibrous CMC-H (degree of etherification DS = 0.65; manufactured by Nichirin Chemical Co., Ltd.) and zeolite (A type, Na ₂ O.2SiO ₂ Al ₂ O ₃ .4.5)
H ₂ O; Mizusawa Chemical Co., Ltd.) 40 parts by weight and NBKP pulp (softwood bleached kraft pulp) 100 parts by weight are mixed in water to form a slurry solution, which is a square sheet machine (Kumagaya Riki Kogyo Co., Ltd.). A hand-made sheet (basis weight: about 60 g / m ² ) was prepared by. The obtained sheet was impregnated with a 50% methyl alcohol solution containing 5% by weight of sodium hydroxide and then dried at 105 ° C. to prepare a sheet.

Furthermore, a polyvinyl acetate (solids concentration 40%) emulsion having an average degree of polymerization of 500 was applied to this sheet to form a water-soluble polymer layer (application amount: 10 g / m ² ) to prepare Sample No. The water-decomposable sheet of No. 3 was prepared.

[Examples 4 to 10] In the same manner as described above, according to the sheet manufacturing conditions in Table 1, the sample No. 4-10 water-decomposable sheets were prepared.

[Comparative Example 1] A slurry was prepared by using only 100 parts by weight of fibrous CMC-H (degree of etherification DS = 0.65; manufactured by Nichirin Chemical Co., Ltd.), and an attempt was made to make a paper.
No sheet was obtained.

Comparative Example 2 A mixed papermaking raw material consisting of 100 parts by weight of fibrous CMC-H (degree of etherification DS = 0.65; manufactured by Nichirin Chemical Co., Ltd.) and 20 parts by weight of NBKP pulp was dispersed in water to form a slurry solution. A hand-made sheet (basis weight: about 60 g / m ² ) was prepared using a square sheet machine. Alkali treatment was performed as in Example 1.

[Comparative Example 3] The water-decomposable sheet obtained in Comparative Example 2 was coated with a polyvinyl alcohol aqueous solution (solid content 20%) having an average degree of polymerization of 500 and a saponification degree of 88.2 mol% to obtain water solubility. A polymer layer (coating amount 7 g / m ² ) was formed to obtain a sheet.

Next, the disintegration property of each of the obtained sheets was evaluated by the following method. The results are also shown in Table 1. Disintegration evaluation method 100 ml of seawater (collected from Shichirigahama, Sagami Bay) was placed in a 100 ml beaker, and the vortex depth was about 1.5 cm by a magnetic stirrer using a stirrer with a length of 3 cm.
It was stirred so that A test piece of 3 cm × 3 cm was put in this, and the disintegration start time of the test piece was measured starting from the time of the input. Here, the time is expressed in seconds. The term “disintegration start” refers to the time when the test piece breaks and is divided into two parts.

[0052]

[Table 1]

From the results shown in Table 1, it was confirmed that the water-decomposable sheet of the present invention has a prolonged disintegration time in seawater and can maintain the effect of bait for a long time.

[Brief description of the drawings]

FIG. 1 is a plan view showing a fishing bait bag according to an embodiment of the present invention.

FIG. 2 is a schematic sectional view of the fishing bait bag of the embodiment.

FIG. 3 is a schematic view showing a state in which the fishing bait bag of the embodiment is mounted on a fishing comass basket.

FIG. 4 is a schematic diagram of an encapsulated dango bait.

[Explanation of symbols]

 1 Fishing bait bag 2 Water-disintegratable sheet 3 Water-soluble polymer layer 4 Heat seal 5 Dissemination 6 Comacecago 7 Fishing hook 8 Fishing bait 9 Dango bait

Claims (4)

[Claims] 1. A water-decomposable sheet for fishing, which comprises water-soluble or water-decomposable carboxymethyl cellulose or carboxyethyl cellulose as a base material, and water-insoluble or poorly water-soluble inorganic powder internally added. 2. The sheet according to claim 1, further comprising a water-dispersible papermaking fiber internally added. 3. The sheet according to claim 1, wherein a water-soluble polymer layer is formed on at least one surface. 4. A fishing bait bag obtained by packaging bait in units with the water-degradable fishing sheet according to claim 1, 2.