JPH1143153A - Drain bag with antibacterial and antifungal function - Google Patents

Abstract

(57) [Problem] To provide a drain bag containing a fibrous substance containing an antibacterial and antifungal agent comprising a metal salt of a specific organic compound which is effective for both antibacterial and antifungal. A fibrous material having a very good antibacterial and fungicidal function is obtained by adding an antibacterial and fungicide comprising a metal salt of a specific organic compound to a fibrous material, and a drainer containing the fibrous material is obtained. The bag is particularly suitable as a drain bag for a kitchen.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a draining bag having an antibacterial and antifungal function suitable for efficiently separating a liquid and a solid in a system in which a liquid and a solid coexist. More specifically, when the drainage bag of the present invention is used particularly as a kitchen drainage bag, the antibacterial and antifungal effect is well exhibited, and it is hard to putrefaction and the odor is reduced. further,
The occurrence of so-called "sliminess" adhering to the walls of bags and containers such as triangle corners for holding bags and the bags and containers to be set in drains is significantly suppressed, and the drainage is extremely sanitary and antibacterial during use. The present invention relates to a drain bag in which a mold is extremely unlikely to flow into a kitchen.

[0002]

2. Description of the Related Art Various kinds of garbage discharged from kitchens in various facilities such as homes, restaurants, hospitals, schools, etc. contain garbage of foods which are very familiar with water and are difficult to dispose of. It is. It is not possible to make these garbage finer with a disposer or the like and flow the sewage into the sewage system, not only because it places an excessive load on the sewage treatment facility, but also in terms of pollution. On the other hand, it is unsuitable for the garbage to be collected and treated as it is, because it has a large bulk and contains a large amount of water. Therefore, it is common practice to appropriately drain the water, reduce the bulk and weight, and then take out the garbage for landfilling and incineration. As a way to separate garbage and water in this way,
Generally, a drain bag is used. As a material for the draining bag, there are a perforated plastic bag, a warif, a nonwoven fabric, and the like. However, the use of a draining bag using a nonwoven fabric is increasing due to the ability to collect fine dust.

[0003] In general, drainage bags are most often used for garbage, which has recently been disposed of by landfill. Recently, incineration is generally performed due to environmental problems due to nature.

[0004] To solve the environmental problem in the treatment by landfill, for example, a biodegradable film or a nonwoven fabric as disclosed in JP-A-8-157002 or JP-A-9-30601 is used. Drain bags have been proposed. However, these biodegradable draining bags,
It has no antibacterial and antifungal function.

Recently, a drainer having a fungicidal and fungicidal function has been prepared by kneading a fungicidal and fungicide into a resin or coating a solution of a fungicidal and fungicide on a nonwoven fabric. A bag has been proposed in JP-A-7-148080.

The above-mentioned draining bag having a germicidal and fungicidal function exhibits the germicidal and fungicidal function when the former germicidal and fungicide disclosed in the publication is kneaded with a resin. Slow, drainage also decreases. In addition, the latter merely coats a solution in which a disinfectant and fungicide is dissolved on the nonwoven fabric to provide a fungicidal and fungicidal function, so that the disinfectant and fungicide leaks into the kitchen during use. May adhere to foods and the like, causing an undesirable state.

[0007] Therefore, in the conventional method, there is no provision of a drainer bag which has sufficient antibacterial and antifungal functions and meets the needs of users.

[0008]

A fibrous substance containing an antibacterial and fungicide consisting of a metal salt of an organic compound (hereinafter sometimes referred to as a fibrous substance in the present invention) is applied to a drain bag. Thus, it is possible to provide an extremely excellent draining bag which is excellent in performance as a draining bag and has sufficient antibacterial and antifungal functions.

[0009]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies on solving the above-mentioned problems, and as a result, have found a revolutionary means unprecedented, that is, a metal salt of an organic compound. By applying a fibrous substance containing an antibacterial and fungicide to a draining bag, especially when used as a kitchen draining bag, the antibacterial and antifungal effect is well expressed, and it is hard to rot and the odor is reduced. . Furthermore, the occurrence of so-called "sliminess" adhering to the walls of the bags and containers such as triangle corners for storing the bags and the bags and the containers to be set in the drainage ditch is remarkably suppressed, and the drainage is extremely sanitary, and during use. It is an object of the present invention to provide a drainage bag in which an antibacterial and fungicide is extremely unlikely to leak into a kitchen.

[0010] 1. The present invention is an invention of a drain bag containing a fibrous substance containing an antibacterial and antifungal agent comprising a metal salt of an organic compound.

2. In the above invention 1, the invention is a drain bag in which the organic compound is a compound containing at least one of a nitrogen-containing heterocyclic ring and a sulfur atom.

3. In the above invention 2, the organic compound containing at least one of a nitrogen-containing heterocyclic ring and a sulfur atom is at least one selected from a benzimidazole compound, a mercaptopyridine-N-oxide compound, an isothiazolone compound, a benzothiazole compound or a benzothiazolone compound. The invention of a drainer bag which is a compound of the above.

4. In the above invention 1, the invention is a drain bag in which the metal salt contains any one of a silver salt, a copper salt and a zinc salt.

5. In the above invention 4, a drainer bag containing a metal salt in which two or more of silver salt, copper salt and zinc salt are combined.

6. The invention of the above invention 5 is an invention of a drain bag containing a metal salt in which three kinds of silver salt, copper salt and zinc salt are combined.

[7] In the above invention 6, when the composition ratio of silver, copper, and zinc is 100 in total, the silver salt, the copper salt, and the zinc salt are each 1 silver,
0-40, zinc 20-60, the balance is copper (however,
This is the invention of a drain bag.

8. In the above invention 1, the invention is a drain bag in which the fibrous substance is a partially modified cellulosic fiber.

9. In the above invention 8, it is the invention of the drain bag in which the partially modified cellulose-based fiber is carboxymethyl-modified.

10. In the ninth aspect of the present invention, the draining bag according to the ninth aspect, wherein the degree of substitution of the partially modified cellulosic fiber is 0.5 or less.

11. In the above invention 1, a drain bag comprising a fibrous substance containing an antibacterial and antifungal agent comprising a metal salt of an organic compound and organic fibers and / or inorganic fibers as a main component.

[12] In the above invention 11, a drainer bag in which the organic fiber is a fiber selected from plant fibers, animal fibers, regenerated fibers, semi-synthetic fibers and synthetic fibers, alone or in combination.

13. In the above invention 11, a drain bag in which the inorganic fibers are single or composite of fibers selected from glass fibers, carbon fibers, ceramic fibers and whiskers.

14. In the above invention 11, a drainer bag comprising a fibrous substance containing an antibacterial and fungicide comprising at least a metal salt of an organic compound and a substance having an adsorption function.

[15] The present invention is a composite drainage bag combining a drainage bag made of organic fibers and / or inorganic fibers and a drainage bag containing a substance having an adsorption function,
It is an invention of a composite drain bag comprising a fibrous substance containing an antibacterial and antifungal agent comprising a metal salt of an organic compound in at least one drain bag constituting the composite drain bag.

16. In the above invention 14 or 15, the draining bag is an invention in which the substance having an adsorption function is activated carbon and / or activated carbon fiber.

17. It is an invention of a kitchen drainer using the drainer of any of the above inventions 1 to 16.

[0027]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A fibrous substance containing an antibacterial and antifungal agent comprising a metal salt of an organic compound used in various drainage bags according to the present invention usually has a diameter of 0.1 to 100 μm.
Having a thread-like shape. In the present invention, since the fibrous substance is applied to a draining bag that must withstand severe use, in order to preferably carry out the present invention, the antibacterial antifungal agent of the present invention must be firmly applied to the inside or surface of the fiber structure. Must be densely formed. Further, in order for the fungicide and fungicide to function effectively, it is necessary that the fibers have appropriate swelling properties, ion permeability and ion capturing properties.

As such fibers, so-called ion exchange fibers are used. For example, sulfonic acid groups, phosphonic acid groups, carboxylic acid groups and the like are appropriately introduced into base polymers such as polystyrene, polyacryl, polyamide, polyethylene and cellulose. Gained by things.

Further, natural cellulose fibers usually called pulp can be preferably used by partially chemically modifying them. Examples of the chemical denaturation treatment include sulfation, phosphorylation, nitration, carboxymethylation, carboxyethylation, and carboxypropylation. Among them,
The carboxymethylation process is easy, economical,
It is excellent in safety and excellent in swelling property, ion permeability and the like, and is very suitable for the practice of the present invention. In particular, it is preferable that the degree of substitution of the partially modified product of the cellulose fiber is 0.5 or less.

As the pulp used as the material of the carboxymethyl-modified fibrous substance preferably used in the present invention, suitably carboxymethylated wood pulp (softwood pulp, hardwood pulp, etc.) is suitable for practicing the present invention. However, regenerated cellulose such as rayon can be used as well. Further, a synthetic fiber, an alginic acid fiber, or a wet-spun fiber of a soluble polymer, which is appropriately modified according to the above-mentioned purpose and has ion exchange ability, may be used. Further, a wet-spun fiber produced from a polymer solution containing an organic metal complex salt having antibacterial and antifungal properties according to the present invention may be used.

One preferred specific example of the fibrous substance of the present invention used in the drainage bag of the present invention is achieved by carboxymethylation of natural cellulosic fibers.

The method for producing carboxymethylated pulp is already established in the art, for example, CMC 198
5.8.30 Publication "Development of Functional Cellulose" 60-
It can be carried out by any of the aqueous medium method and the solvent method described on page 61.

A fibrous substance having a desired degree of carboxymethyl group substitution can be basically obtained by adjusting the amount of sodium monochloroacetate, the amount of alkali and water with respect to the cellulosic fiber, and other reaction conditions. It is.

Generally, the degree of carboxymethyl group substitution is:
It is defined as the degree of substitution of carboxymethyl groups per glucose unit (DS). The degree of substitution is to convert to acid-type carboxymethylcellulose, neutralize it by adding an excess amount of alkali, and then back titrate with acid. Required by

The fibrous substances having various degrees of carboxymethyl group substitution used in the drainage bag of the present invention have an increased ability to capture metal ions as the degree of substitution increases. Although the packing density of the organometallic composite salt becomes high, swelling proceeds excessively at a high degree of substitution, leading to a decrease in fiber strength and eventually to solubilization, which is not preferable for the practice of the present invention. Generally, the degree of substitution becomes soluble at around 0.6. Although the strength is reduced, the substitution degree is about 0.5, which is the upper limit level at which the fiber shape can be maintained.

It is relatively difficult to define the lower limit of the degree of substitution of the cellulose fibers as a preferred embodiment of the fibrous substance in the present invention. For example, a carboxymethylated fibrous material having a degree of substitution of 0.4 can capture 2.5 mmol / g of monovalent metal ions, but according to the present invention, a practically effective capture amount and subsequent organic In the reaction with the compound,
There is an experimental result that it is appropriate to estimate about 50% of the ion exchange capacity in order to form a complex salt in the fiber and at least in the vicinity of the surface in a form with less falling off.

Therefore, a carboxymethylated fibrous substance having a degree of substitution of 0.5 can form an organometallic complex salt equivalent to 1 to 1.5 mmol / g. This indicates that if the molecular weight of the organometallic salt is estimated to be 150 to 250, a solid content (antibacterial and antifungal agent) of about 15 to 40% is formed as a solid content, which is sufficient for obtaining the antibacterial and antifungal ability. Amount.

The antibacterial and fungicidal activity of the fibrous substance in the present invention is sufficient even at about 1% or less at the above-mentioned solid content. Although it is possible, for example, the antibacterial and antifungal fibrous material thus processed is partially used as a so-called master batch, which is said in the resin industry,
The embodiment which is used in combination with other unprocessed fibers can be industrially applied to various drainage bags, is easy to manage and has high practicality, and is suitably used for various drainage bags.

In order to provide such a use, it is necessary to have a substitution rate at which at least 5% or more, preferably 10% or more of an antibacterial and fungicide can be contained. At least 0.2, preferably 0.3
Five or more are preferred.

However, the metal ion substitution treatment and the organic compound treatment can be repeated not a single time but a plurality of times, which makes it possible to fill the antibacterial and fungicide at a higher density. Therefore, a region lower than the above range is not excluded.

As mentioned in the preceding paragraph 0038, the advantage of partially using a fibrous substance densely filled with an antibacterial and fungicide will be described. Comparing the one in which the fibrous material filled with the antibacterial and fungicide at a low density is uniformly distributed and the one in which the fibrous material filled with a high density is distributed in an island form, at least high resistance to bacterial contamination with high concentration, The latter clearly showed superiority in durability.

In nature, various bacteria coexist, and the existence of various resistant bacteria is a well-known fact. In order to achieve their overall effectiveness, including these, island structures with extremely concentrated antimicrobial and fungicide distribution are economically very effective means.

When the fibrous substance of the present invention containing the extremely concentrated antibacterial and fungicide thus produced is applied to various drainage bags, it has an excellent antibacterial and fungicidal function. In particular, when used as a drainage bag for kitchens, the antibacterial and antifungal effect is well exhibited, it is hard to rot and the odor is reduced. Furthermore, the occurrence of so-called "sliminess" adhering to the walls of the bags and containers such as triangle corners for storing the bags and the bags and the containers to be set in the drainage ditch is remarkably suppressed, and the drainage is extremely sanitary, and during use. It has become possible to provide a draining bag in which an antibacterial and fungicide is extremely unlikely to leak into a kitchen.

The organic fibers and / or inorganic fibers used in combination with the fibrous substance according to the present invention include:
Fibers selected from plant fibers, animal fibers, regenerated fibers, semi-synthetic fibers and synthetic fibers are used alone or as a mixture. As inorganic fibers, fibers selected from glass fibers, carbon fibers, ceramic fibers and whiskers are used alone. Alternatively, a mixture is used.

Plant fibers include cotton and hemp (flax, ramie), and animal fibers include silk and wool.

Regenerated fibers include rayon and cupra, semi-synthetic fibers include acetate, triacetate, and promix. Synthetic fibers include nylon, acryl, vinylon, vinylidene, polyvinyl chloride, polyester, polyethylene, polypropylene, Fibers such as benzoate, polyclar, and phenol-based fibers are included.

The definitions of the fibers described in the above paragraphs 0044 to 0046 are based on the Fiber Handbook (1993 edition).

In the present invention, in addition to the above fibers, woody plants such as softwood pulp, hardwood pulp and the like, wood pulp such as softwood pulp, straw pulp, bamboo pulp and kenaf pulp, and herbs are also included in the present invention. Further, pulp fibers obtained from waste paper, broke, and the like are also included.

The draining bag containing a fibrous substance according to the present invention solves the above-mentioned problems of the prior art and exhibits various excellent effects as described below. (1) It works well for high concentration bacterial contamination. (2) Particularly when used as a drainer for kitchens, the antibacterial and antifungal effect is well exhibited, it is hard to rot and the odor is reduced. Furthermore, the occurrence of so-called "sliminess" adhering to the walls of the bags and containers such as the triangular corners into which the bags are placed and the bags and containers set in the drainage ditch is remarkably suppressed, the drainage is good, and the sanitation is extremely sanitary. (3) Since the antibacterial and fungicide hardly dissolves due to poor solubility and high stability, the antibacterial and fungicide hardly leaks into the kitchen during use, so that the falling off contamination is remarkable. Few. (4) The drainage bag can be used repeatedly because it is excellent in durability and the effect of washing with water is hardly deteriorated. (5) An antibacterial and antifungal agent has a very low volatility, and more particularly, a drain bag extremely effective for both antibacterial and antifungal can be obtained.

Next, the partially carboxymethylated fibrous substance used in the drain bag of the present invention will be described with reference to the metal ion substitution treatment and the antibacterial and fungicidal organic compound. As an example, a description will be given using an example using Na-type carboxymethylcellulose having a degree of substitution of 0.4. 1) Add water to an amount equivalent to 100 g of the above pulp solid content to such an extent that stirring is possible. 2) Add 100 mmol / equivalent (17 g) of silver nitrate. 3) Add alkali so that the pH of the system is 5.5 to 6.0. 4) Stir at room temperature for 30 minutes to allow sufficient displacement (adsorption). 5) 1000 ml of a 0.1 M / l solution of sodium 2-mercaptopyridine-N-oxide is added little by little with stirring. When the potential is measured using a silver electrode or a platinum electrode, the reaction end point can be detected. 6) After completion of the addition, the mixture is stirred for 30 minutes to allow a sufficient reaction. 7) The pH of the system is lowered to about 4 by adding a 0.1 M / l sulfuric acid solution, and then the system is dehydrated by a dehydration press.

According to the above procedure, mercaptopyridine-
A pulp containing a silver N-oxide salt is obtained. If necessary, the fallout can be removed in advance by dispersing in water again and washing with water. According to the results of the experiment, it was confirmed that salts were formed in the form of in-fiber and surface fixation at a high yield of 90% or more, although they were partially removed.

In order to form the mercaptopyridine-N-oxide silver salt in the fiber or on the surface in a high yield, it is necessary to optimize pH control, stirring, concentration and rate of chemical addition.

In the present invention, a method for producing a complex salt of an organic compound which exhibits the most effective antibacterial and antifungal function will be described.

Basically, as in the case of the above-mentioned single metal salt, it can be achieved by blending the composition of the metal salt to be added to carboxymethylcellulose in a calculated amount. The reaction with each ion can be monitored by the potential measurement used.

As an example, 2-mercaptopyridine-N
Illustrating a method for producing a composite salt of an oxide, silver, copper,
It is obtained by adding 2-mercaptopyridine-N-oxide to a composite system of zinc. 25 mol% silver, 25 copper
Mol%, zinc 50 mol% and 2-mercaptopyridine-N
Specific examples for forming a complex salt of -oxide include: Na-type carboxymethyl cellulose (DS = 0.4) solid content 100 g water 5000 g silver nitrate 25 mmol copper sulfate 15 mmol zinc nitrate 30 mmol water 1000 g 2-mercaptopyridine-N-oxide It becomes 1000 g of sodium 0.1m / l solution. As a preferred embodiment of the present invention, after addition of silver nitrate, addition of 2-mercaptopyridine-N-oxide compound → addition of copper sulfate → addition of 2-mercaptopyridine-N-oxide compound → addition of zinc nitrate → 2-mercapto It can be performed by various addition methods such as addition of a pyridine-N-oxide compound.

Many of nitrogen-containing organic heterocyclic compounds and sulfur-containing compounds such as thiol compounds and thione compounds can be formed with the same concept.

Isothiazolin-3-one compounds are also possible, and many of the imidazole derivatives themselves have an antibacterial and antifungal action. In this case, the solubility in water is low and it cannot be added in the form of an aqueous solution, but it is soluble in water-miscible organic solvents such as alcohols, glycols, and DMSO. By adding as a metal salt, a metal salt can be formed in the fibrous substance.

The fibrous substance in the present invention can be applied to a drain bag as a sheet by itself, but it is more practical to mix and use it with other various fibers used in combination. is there. Furthermore, as mentioned above,
In the fibrous substance of the present invention, it is more effective to adsorb the antibacterial and fungicide at a high concentration and apply the fibrous substance of the present invention in a so-called master batch manner, and it is also large in operation. There are advantages. The fibrous substance in the present invention is contained in a total amount of 0.1% in all the fibrous substances constituting the drain bag.
It is 1 to 70 parts by weight, preferably 0.5 to 30 parts by weight. If the amount is less than 0.1 part by weight, a sufficient antibacterial and fungicidal function is not exhibited. If the amount exceeds 70 parts by weight, the strength is greatly reduced and the drainage property is deteriorated, which is not desirable from the viewpoint of cost.

In the drain bag using the fibrous substance in the present invention, organic fibers and / or inorganic fine fibers can be used in order to collect fine dust.

The micro glass fiber is an ultrafine glass fiber produced by a steam spraying method, a spinning method, a flame insertion method, a rotary method, or the like.
μm or less. In the present invention, 3
μm or less is more preferable.

When the fibrous substance in the present invention is mixed with various other fibers to be used, various binders can be used as necessary.

The fibrous binder used in the present invention includes conjugate fibers such as a core-sheath type (core-shell type) and a side-by-side type (side-by-side type).
For example, a combination of polypropylene (core) and polyethylene (sheath) (trade name: Daiwabo NBF-H: manufactured by Daiwa Spinning), a combination of polypropylene (core) and ethylene vinyl alcohol (sheath) (trade name: Daiwabo NBF-)
E: manufactured by Daiwa Spinning Co., Ltd., a combination of polypropylene (core) and polyethylene (sheath) (trade name: Chisso ESC: made by Chisso), a combination of high melting polyester (core) and low melting polyester (sheath) (trade name: Melty 4080) : Made by Unitika Ltd.). Further, a hot water melting type such as vinylon binder fiber (VPB107 × 1: made by Kuraray) or the like can also be used.

The fiber diameter of the fibrous binder is not particularly limited, but is preferably from 0.3 to 5 deniers.
More preferably, it is 1-2 denier.

By adding a fibrous binder to impart good tensile strength and foldability in the papermaking stage, the internal strength of the drainage bag can be increased, and tension can be applied in the adhesive application step and slitting step after papermaking. It plays a role of suppressing paper breakage that is likely to occur when water is added, and surface peeling that is likely to occur when a drain bag is rubbed in a slitting process and a pleating process.

When the drainage bag using the fibrous substance in the present invention is produced by a wet papermaking method, various fibers are uniformly dispersed in a dispersion tank such as a pulper in order to improve the formation. It is necessary to use a surfactant for that purpose.

The surfactant may be anionic, cationic,
Nonionic and amphoteric. Examples of the anionic surfactant include a carboxylate, a sulfate, a sulfonate, and a phosphate. Examples of the cationic surfactant include an amine salt and an ammonium salt. Examples of the nonionic surfactant include an ether type, an ester type, and an amino ether type. Examples of the amphoteric surfactant include a betaine type. From these, those having good fiber dispersibility may be appropriately selected and used. In addition, even if it deviates from those exemplified above, there is no problem as long as it has good fiber dispersibility.

In order to improve the dispersion stability of the uniformly mixed and dispersed fibers, an anionic polyacrylamide-based tackifier is added to the fiber dispersion or the papermaking head to form a wet drainage bag after wet papermaking. Is further improved.

The draining bag of the present invention may be a single-layer wet paper machine for producing general paper or a wet nonwoven fabric, such as a fourdrinier paper machine, a circular net paper machine, or an inclined wire paper machine. Alternatively, two or more layers of the same model or a combination of different models may be used. Also, in order to improve drainage,
Drainability can be controlled by providing a water-impermeable portion on a wire of a paper machine and making the paper.

For drying, a dryer such as a cylinder dryer, an air dryer, and an infrared dryer can be used. Also, to improve drainage,
Drilling may be performed.

The draining bag of the present invention has good strength and stiffness at the time of drying after wet paper making, but it is wet laid to further improve strength and stiffness depending on applications such as easy handling. After drying, it is possible to apply various binders.

Examples of the binder include acrylic latex, vinyl acetate latex, urethane latex, epoxy latex, polyester latex, SBR latex, NBR latex, epoxy binder, phenol burner, PVA, starch, Examples include paper strength agents generally used in papermaking processes, and these can be used alone or in combination with a crosslinking agent.

[0072]

EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited to the examples. In the examples, “parts” and “%” indicate “parts by weight” and “% by weight”, respectively.

Production Example A Modified NBK having a carboxymethyl group substitution degree of 0.22 (DS = 0.22) according to the description of the above embodiment of the invention.
For P, a fibrous substance containing an antibacterial and fungicide composed of silver / 2-mercaptopyridine-N-oxide was prepared (hereinafter abbreviated as CP22AgMP). That is, 0.5 m of silver nitrate was added to the above-mentioned modified NBKP dispersion (solid content: 1000 g).
and adjust the pH to 5.5, followed by stirring for 30 minutes. 0.1 M / l 2-mercaptopyridine-N-
The sodium oxide solution was added in an equimolar amount to the silver nitrate added to the modified NBKP dispersion. After stirring for 30 minutes, the pH was reduced to 4 with sulfuric acid and then dehydrated. To the dehydrated pulp, 500 ml of water was again added, and the mixture was washed with stirring and dehydrated. This was designated as modified NBKP having a carboxymethyl group substitution degree of 0.22 (DS = 0.22) containing an antibacterial and fungicide composed of silver / 2-mercaptopyridine-N-oxide.

Comparative Example 1 A sodium acrylate-based anionic surfactant (Primal 850, manufactured by Nippon Acrylic Chemicals Co., Ltd.) was placed in a 2 m ³ dispersion tank.
Is added so as to be 1% with respect to all fibers, and NBKP is added.
(Canada standard freeness: 480 ml), polypropylene fiber (fiber diameter: about 7 μm) (PZ: 0.5 denier, 5 mm: manufactured by Daiwa Spinning Co., Ltd.), fiber diameter: 2 denier × 5 mm polyester fibrous binder (Melty 4080, manufactured by Unitika),
Vinylon binder fiber (VP
B107 × 1, 3 mm: made by Kuraray) 35:15:
After mixing at a ratio of 44: 6 and dispersing at a dispersion concentration of 0.2% for 30 minutes, a circular water-impermeable portion having a diameter of 3 mm was formed on the wire at an interval of 3 mm so that the dry weight was 15 g / m ^2. After making the paper with a round paper machine uniformly provided, the surface temperature is 130 ° C.
And dried with a cylinder dryer to prepare a draining bag.

Examples 1 to 5 A part of NBKP of Comparative Example 1 was added to CP22AgMP which is the fibrous substance of the present invention obtained in Production Example A above.
Except for replacing the blending amounts shown in Table 1, the drainage bags of Examples 1 to 5 were produced in the same manner as in Comparative Example 1.

Example 6 CP22AgMP which is the fibrous substance of the present invention obtained in the above-mentioned Preparation Example A, a fiber diameter of 2 denier × 5 mm polyester fibrous binder (Melty 4080, manufactured by Unitika), and a water dissolution temperature of 70 ° C. Vinylon binder fiber (VPB107 × 1, 3 mm: made by Kuraray) is 7
A draining bag of Example 6 was produced in the same manner as in Example 1 except that it was blended at a ratio of 0: 25: 5.

Preparation Example B The same as Preparation Example A, but modified according to the description of the above-mentioned embodiment of the invention, instead of CP22AgMP, with a degree of carboxymethyl group substitution of 0.40 (DS = 0.40). NB
A fibrous substance containing an antibacterial and fungicide consisting of copper / 1,2-benzisothiazolin-3-one in KP was prepared (hereinafter abbreviated as CP40CuBIT). That is, the above modified NBKP dispersion (1000 g solid content)
mol and adjust the pH to 5.5 and then stir for 30 minutes. A 0.1 M / l sodium 1,2-benzisothiazolin-3-one solution was added in an amount of 1 mol. After stirring for 30 minutes, the pH was reduced to 4 with sulfuric acid and then dehydrated. To the dehydrated pulp, 500 ml of water was added again, washed with stirring water and dehydrated to obtain CP40CuBIT.

Comparative Example 2 Sodium acrylate anionic surfactant (Nippon Acrylic Chemical Co., Primal 850) was placed in a 2 m ³ dispersion tank.
Is added so as to be 1% with respect to all fibers, and NBKP is added.
(Canada standard freeness 480 ml), acrylic fiber with a fiber diameter of 0.1 denier x 3 mm, fibrillated organic fiber (K
Y-400S: manufactured by Daicel Chemical Industries, Ltd.), fiber diameter 0.5
A denier × 5 mm polyester fiber (manufactured by Teijin Limited) and a fiber diameter of 2 denier × 5 mm polyester fibrous binder (Melty 4080, manufactured by Unitika) were each 35: 1.
Compounded at a ratio of 5: 5: 20: 25, dispersion concentration 0.2%
And a wire having a 3 mm diameter circular water impermeable portion on the wire so that the dry weight becomes 15 g / m ^2.
After papermaking with a round paper machine uniformly provided at an interval of mm, the paper was dried with a cylinder dryer having a surface temperature of 130 ° C., and then acrylic latex was applied by a size press and dried to prepare a drainage bag.

Examples 7 to 11 A part of the NBKP of Comparative Example 2 was replaced with the fibrous substance CP40CuBIT of the present invention obtained in Production Example B above.
Then, draining bags of Examples 7 to 11 were prepared in the same manner as in Comparative Example 2 except that the amounts were replaced with the amounts shown in Table 1.

Example 12 CP40CuBIT, a fibrous substance of the present invention obtained in the above Production Example B, a fiber denier of 2 denier × 5 mm polyester fibrous binder (Melty 4080, manufactured by Unitika Ltd.), and a water dissolution temperature of 70 ° C. Vinylon binder fiber (VPB107 × 1, 3 mm: made by Kuraray) is 7
A draining bag of Example 12 was produced in the same manner as in Example 7, except that it was blended at a ratio of 0: 25: 5.

Preparation Example C The same as Preparation Example A, but modified according to the description of the above-mentioned embodiment of the invention, instead of CP22AgMP, with a degree of carboxymethyl group substitution of 0.40 (DS = 0.40). NB
KP with (silver, copper, zinc) / 2-mercaptopyridine-N
A fibrous material containing an antibacterial and antifungal agent composed of an oxide was prepared (hereinafter referred to as CP40Ag25Cu25Zn50M).
Abbreviated as P. In addition, the number next to the metal atom represents a mol% ratio). That is, 0.25 mol of silver nitrate and 0.25 mol of copper sulfate were added to the above-mentioned modified NBKP dispersion (solid content: 1000 g).
mol and 0.5 mol of zinc nitrate, adjust the pH to 5.5, and then stir for 30 minutes. 0.1 M / l 2-
Mercaptopyridine-N-oxide sodium solution was added to 1
mol equivalents were added. After stirring for 30 minutes, the pH was reduced to 4 with sulfuric acid and then dehydrated. To the dehydrated pulp, 500 ml of water was added again, and the mixture was washed with stirring water and dehydrated.
0Ag25Cu25Zn50MP was obtained.

Comparative Example 3 Sodium acrylate-based anionic surfactant (Primal 850, manufactured by Nippon Acrylic Chemicals Co., Ltd.) was placed in a 2 m ³ dispersion tank.
Is added so as to be 1% with respect to all fibers, and NBKP is added.
(Canada standard freeness: 480 ml), polyester fiber (fiber diameter: about 7 μm) (0.5 denier, 5 mm: manufactured by Teijin Limited), fiber diameter: 2 denier × 5 mm polyester fibrous binder (Melty 4080, manufactured by Unitika), average Glass fiber with a fiber diameter of about 9 μm (made by Asahi Fiberglass)
Were blended at a ratio of 35: 15: 35: 15, respectively, and dispersed at a dispersion concentration of 0.2% for 30 minutes, followed by a dry weight of 20 g / m2.
^The paper is made with a circular paper machine having a wire with water-impermeable portions having a diameter of 3 mm and uniformly spaced at 3 mm so that the wire becomes ² , and then dried with a cylinder dryer having a surface temperature of 130 ° C to produce a drain bag. did.

Examples 13 to 17 A portion of the NBKP of Comparative Example 3 was replaced with the fibrous substance CP40Ag25Cu of the present invention obtained in Production Example C above.
The drainage bags of Examples 13 to 17 were prepared in the same manner as in Comparative Example 3 except that 25 Zn50MP was replaced with the compounding amount shown in Table 1.

Example 18 CP40Ag25Cu25Zn50MP which is a fibrous substance of the present invention obtained in the above Production Example C, a fiber diameter of 2 denier × 5 mm polyester fibrous binder (Melty 4080, manufactured by Unitika Ltd.), and a water dissolution temperature of 70 ° C. Vinylon binder fiber (VPB107 × 1, 3 mm:
A draining bag of Example 18 was produced in the same manner as in Example 13 except that Kuraray (product of Kuraray Co., Ltd.) was mixed at a ratio of 70: 25: 5.

Example 19 Same as Example 16 except that polyester fiber having a fiber diameter of 0.5 denier was replaced with activated carbon fiber (average fiber diameter: 15 μm, fiber length: 8 mm, specific surface area: 1000 m ² / g).
Was used to prepare the drain bag of Example 19.

Comparative Example 4 The drainage bag of Comparative Example 4 was produced in the same manner as in Example 19, but without using the fibrous substance CP40Ag25Cu25Zn50MP of the present invention.

Comparative Example 5 The same procedure as in Example 16 was repeated, except that the fibrous substance containing 10% of benzalkonium chloride was used instead of the fibrous substance containing CP40Ag25Cu25Zn50MP in combination with the three-metal salt in the present invention. 5 were prepared.
Note that the benzalkonium chloride-containing fibrous material was obtained using the carboxymethyl group substitution degree of 0.40 (DS
= 0.40) to 10 g of denatured NBKP.
l of benzalkonium chloride solution and add pH
After adjusting to 5.5, the mixture was stirred, dehydrated, washed with water, and then dehydrated again to prepare a product.

Example 20 50 parts by weight of activated carbon fiber, 40 parts by weight of NBKP (Canadian standard freeness 450 ml) and fiber diameter 2 denier × 5 m
m polyester fibrous binder (Melty 4080,
A pulp slurry consisting of 10 parts by weight and a pulp slurry consisting of Example 16 in a dry weight of 60 g /
The paper was made by a round paper machine and a fourdrinier paper machine so as to obtain m ² (30 g / m ² each), and then dried by a cylinder dryer having a surface temperature of 130 ° C. to prepare a composite drainage bag.

With respect to the drain bags thus obtained in Examples and Comparative Examples, anti-slime fungus, drainage with time, antibacterial performance, and antifungal performance were measured. The obtained results are shown in Tables 1 and 2.

<Anti-slime fungicidal property> A 2 cm x 2 cm test piece of each draining bag obtained in the above Examples and Comparative Examples was used.
Seeds were prepared, one test piece was left as it was, and the other test piece was immersed in tap water for 5 hours, taken out, washed with running tap water, placed on a Petri dish, and slicked out from the kitchen After 0.5 g of slime was added to 100 ml of water and stirred with a stirring rod, 5 drops (about 0.1 ml) of the above bacterial solution was dropped on the test piece with a Pasteur pipette, and covered so as not to dry. For 24 hours. After a lapse of time, each of the test pieces was subjected to Nutrient Broth.
The cells were pressed on an agar medium, the bacteria on the test piece were transferred, peeled off, cultured at 38 ° C. for 24 hours, and observed. The evaluation was performed in the same manner as the following <Test method- (antibacterial (sterilizing) property)>.

<Drainability with time> A funnel having a diameter of 9 cm was provided on a graduated cylinder, a 100-mesh wire mesh was set on the funnel along the inner wall of the funnel, and each of the drainers obtained in the above Examples and Comparative Examples was placed thereon. The test piece in the bag is set as filter paper. Rice 30 g Tea chaff 10 g Bread crumbs 5 g Ground pork 5 g 100 g of water (25 ° C.) is placed in a 200 ml beaker, stirred for about 1 minute by a freehand using a stirring bar, and then poured onto the above funnel, and the initial filtration speed is set. Ask for. Then, after 24 hours, 100m
Add 1 liter of water onto the funnel and determine the filtration rate in the same way.
The filtration rate (%) determined by the following equation (1) was defined as the drainage with time.

[0092]

(Equation 1) The filtration speed was determined by measuring the time of 50 ml filtration.

<Test Method-(Antibacterial (bactericidal) properties)> E. coli (E-coli IFO3301) was pre-cultured in a liquid medium (peptone yeast) for 24 hours, diluted and diluted to 2 × 10 5
A test solution of ⁸ cells / ml was prepared. Test piece 2cm x 2
cm, placed on a Petri dish, 5 drops (approximately 0.1 ml) of the above bacterial solution was dropped with a Pasteur pipette, covered so as not to dry, and aged at 38 ° C. for 24 hours. After a lapse of time, each of the test pieces was replaced with Nutrient Brot.
h Pressed on an agar medium, transferred the bacteria on the test piece, peeled off, cultured again at 38 ° C for 24 hours, and observed. The evaluation was as follows. Evaluation grade --- Almost completely sterilized, with no growth of bacteria. -There is growth of 5 colonies or less on the transfer surface of 2 cm x 2 cm, but almost completely sterilized. + Good anti-bacterial effect with less than 100 colonies on the 2cm x 2cm transfer surface. ++ 2cm × 2cm Although the effect is recognized on the transfer surface,
Weak or less. ++++ 2cm × 2cm No substantial effect on transfer surface.

<Test Method-(Antifungal Property)> As a test strain, black mold (Aspergillus niger) was used. Take 5 platinum loops of spores from the slant medium, add a small amount of wetting agent (dioctyl sodium sulfosuccinate solution),
The spores were dispersed by shaking vigorously, filtered through gauze, and adjusted to a total volume of 50 ml. A GP medium (manufactured by Nippon Pharmaceutical Co., Ltd.) to which 1.5% agar was added was prepared, the above bacterial solution was sprayed uniformly, the surface was once dried, and a sample piece cut into 2 cm × 2 cm was placed thereon and sufficiently pressed. Then, the test bacteria were sprayed on the entire surface again, and cultured at 28 ° C. over time, and observed over time for up to one week. Tables 1 and 2 show the observation results over one week. The evaluation was as follows. Evaluation grade --- Completely inhibits mold growth. -It is difficult to judge whether mold is growing or not. + Shows fairly good controllability, but shows mold growth below 1/5 of the surface area. ++ Mold growth is observed at 1/3 of the surface area. ++ Mold grows on the entire surface.

[0095]

[Table 1]

[0096]

[Table 2] Note) 10 * in Comparative 5 indicates that 10% of benzalkonium chloride-containing fibrous material was used in place of the CP40Ag25Cu25Zn50MP-containing fibrous material in the present invention, which was used in combination with a three-metal salt.

From the results of Tables 1 and 2, the following can be understood.

The antibacterial fungicide described in Production Example A (CP22
When the fibrous substance of the present invention containing AgMP) was used in place of a part of NBKP, which is one of the constituent fibers of a drain bag, the antibacterial performance and It was found that the antifungal performance was excellent. From 0.1%, the effect is recognized, and from 0.5%, a considerably good antibacterial and antifungal effect is recognized, and if it is 1.0% or more, an extremely good antibacterial and antifungal effect is recognized. Was done. The anti-slime fungus property, which is a characteristic of the draining bag, is effective when the compounding amount is from 0.1%, and a good anti-slime fungus improving effect is recognized from 0.5%.
% Or more, a good anti-slimming property improvement effect was recognized. The effect was good without change before and after washing, and no decrease in the effect due to washing was observed at all. With respect to the drainage property with time, which is another characteristic of the drain bag, the same improvement effect as the antislime fungus property was recognized.
Example 7 in which 70% of a fibrous substance in the present invention was blended
The antibacterial and antifungal effects, the anti-slime fungus property, and the drainage property with time showed extremely good results. Although a remarkable effect was observed as compared with Comparative Example 1, when 70% was blended, the initial filtration rate was slightly slow.

The antibacterial fungicide described in Production Example B (CP40
Examples 7 to 11 in which the fibrous substance of the present invention containing (CuBIT) was replaced with a part of NBKP, which is one of the constituent fibers of the drain bag, and Example 12 in which 70% was blended, Similar to Examples 1 to 5 and Example 7, good results were obtained in antibacterial and antifungal properties, antislime fungus properties, and drainage with time.

The antibacterial and fungicide described in Production Example C (CP40
Ag25Cu25Zn50MP) in the present invention, the NB which is one of the constituent fibers of the drain bag is used.
Examples 13 to 1 when used in place of part of KP
7 is a system in which glass fiber is blended.
Similarly to Examples 7 to 11, good results were obtained with respect to antibacterial and antifungal properties, antislime fungus properties, and drainage with time, but it was found that good results were obtained particularly in antislime fungus properties. (Example 17).

In Example 19, a part of the 0.5 denier polyester fiber of Example 16 was replaced with activated carbon fiber.
The antibacterial and antifungal agent is a draining bag using a combination of three metal salts. In this case, too, compared to Comparative Example 4, the antibacterial and antifungal performance, the anti-slime fungus property, and the drainage with time were extremely good. was gotten.

Example 20 is a draining bag prepared by combining Example 16 with activated carbon fibers. In this case, too, the antibacterial and antifungal properties, the anti-slime fungus properties, and the drainage with time were extremely good. was gotten.

Comparative Example 5 is the same as Example 16 except that
CP40Ag25Cu in combination with 3 metal salts in the present invention
Instead of the 25Zn50MP-containing fibrous material, 10% of benzalkonium chloride-containing fibrous material was used. In this case, only the anti-slime fungus property before washing was good, and the results were extremely poor in anti-slime fungus property, drainage with time and antibacterial and antifungal properties after washing. This means that although the draining bag using the benzalkonium chloride-containing fibrous material has an initial effect, the effect is markedly reduced by washing with water, and the fibrous material in the present invention has an initial effect. In addition to the antibacterial and antifungal properties, it is effective not only under the severe conditions such as washing, but also without impairing the properties of the draining bag, such as anti-slimming bacteria and drainage over time. You can see that it works.

[0104]

As described in detail above, the fibrous substance containing the antibacterial and antifungal agent used in the present invention is capable of forming a hydrophilic matrix by skillfully utilizing the specific porosity of the fibrous substance. Formed, and therefore have good bacteria-capturing properties,
In addition, it has a function of maintaining moisture, and also has good ion diffusivity. Furthermore, the antibacterial and antifungal agent used in the present invention is hardly soluble and has a moderate dissociation property, so that it is sustained release. Therefore, the antibacterial and antifungal effect is maintained, the pot life is long, and the durability is excellent. Further, in the present invention, the fibrous material containing an antibacterial and fungicide and exhibiting the most effective function is a carboxymethyl-modified partially modified product of cellulosic fiber,
Further, this is a case where a fibrous substance whose substitution degree (DS) is 0.5 or less is used. If pulp made of such a fibrous substance is used, the pulp can be filled at a high density into the cellulose fibers constituting the pulp, so that pulp having an extremely high antibacterial and fungicide content can be obtained. Therefore, a drain bag containing a fibrous substance containing the antibacterial and antifungal agent used in the present invention,
The antibacterial and antifungal effect is well expressed, it is hard to rot and the odor is reduced. The generation is remarkably suppressed, the drainage is good and it is extremely sanitary. Further, the antibacterial fungicide used in the present invention is hardly soluble, because of high stability,
Since there is almost no elution of the antibacterial and fungicide, the antibacterial and fungicide hardly leaks into the kitchen during use, so that the falling-off contamination is extremely small and the durability is excellent.

Claims (17)

[Claims] 1. A drain bag containing a fibrous substance containing an antibacterial and antifungal agent comprising a metal salt of an organic compound. 2. The drain bag according to claim 1, wherein the organic compound is a compound containing at least one of a nitrogen-containing heterocyclic ring and a sulfur atom. 3. A nitrogen-containing heterocyclic ring and at least one of sulfur atoms
3. The drain bag according to claim 2, wherein the organic compound containing the seed is at least one compound selected from a benzimidazole compound, a mercaptopyridine-N-oxide compound, an isothiazolone compound, a benzothiazole compound and a benzothiazolone compound. 4. The drain bag according to claim 1, wherein the metal salt contains at least one of a silver salt, a copper salt, and a zinc salt. 5. The draining bag according to claim 4, wherein the metal salt contains a complex of two or more of silver salt, copper salt and zinc salt. 6. The drain bag according to claim 5, wherein the metal salt contains a complex of three of silver salt, copper salt and zinc salt. 7. The silver salt, the copper salt and the zinc salt, wherein
When the composition ratio of silver, copper and zinc is 100 in total by mole ratio, silver 10 to 40, zinc 20 to 60,
7. The drain bag according to claim 6, wherein the balance is copper (but the copper does not become zero). 8. The drain bag according to claim 1, wherein the fibrous substance is a partially modified cellulosic fiber. 9. The draining bag according to claim 8, wherein the partially modified cellulosic fiber is carboxymethyl-modified. 10. The drain bag according to claim 9, wherein the degree of substitution of the partially modified cellulosic fiber is 0.5 or less. 11. The draining bag according to claim 1, which mainly comprises a fibrous substance containing an antibacterial and antifungal agent comprising a metal salt of an organic compound and organic fibers and / or inorganic fibers. 12. The draining bag according to claim 11, wherein the organic fiber is a fiber selected from plant fibers, animal fibers, regenerated fibers, semi-synthetic fibers and synthetic fibers, alone or in combination. 13. The drain bag according to claim 11, wherein the inorganic fiber is a fiber selected from glass fiber, carbon fiber, ceramic fiber, and whisker, alone or in combination. 14. The drain bag according to claim 11, comprising a fibrous substance containing an antibacterial and fungicide comprising at least a metal salt of an organic compound, and a substance having an adsorption function. 15. A composite drainage bag combining a drainage bag made of organic fibers and / or inorganic fibers and a drainage bag containing a substance having an adsorption function, wherein at least one drainage bag constituting the composite drainage bag is provided. A composite drain bag containing a fibrous substance containing an antibacterial and antifungal agent comprising a metal salt of an organic compound. 16. The drain bag according to claim 14, wherein the substance having an adsorption function is activated carbon and / or activated carbon fiber. 17. A kitchen drain bag using the drain bag according to any one of claims 1 to 16.