JPH03193015A - Chopping board - Google Patents

Abstract

PURPOSE:To provide the chopping board which has an antimicrobial property even to the bacteria penetrating deeply in the the scars generated by a kitchen knife, allows the easy removal of the dents generated at the time of use and is usable over a long period of time by laminating moldings of synthetic resins, adding and compounding thiabendazole at adequate weight % between the layers and thermally welding the entire peripheral side face. CONSTITUTION:The molding formed by adding and compounding thiabendazole in the form of white powder to and with, for example, a low density polyethylene(PE) resin and injection molding the mixture are partly used as the synthetic resins. The chopping board 1 formed by partly using the moldings is arranged vertically with the 1st moldings 3 of, for example, 5mm thickness made of PE. The 2nd moldings 5 of, for example, 2mm thickness, formed by adding and compounding thiabendazole at 0.05wt.% to and with the PE, and molding the mixture are inserted and laminated between the 1st moldings 3. The 3rd moldings 7 of, for example, 1mm thickness which are made of the same PE as the PE of the 1st moldings 3 and are thinner than the 1st moldings 3 are integrated by thermal welding on the entire peripheral side surface of the chopping board laminated with the plural layers.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) This invention relates to a cutting board partially containing an antibacterial agent.

(Conventional technology) Conventionally, for general household use or restaurants1 food industry.

Wooden cutting boards have been known for a long time for commercial purposes such as school cafeterias and hospital cafeterias. This wooden cutting board is bacteriologically considered the dirtiest.

Therefore, recently, the Food Sanitation Law requires the use of polyethylene, polypropylene, or synthetic rubber as the material for cutting boards from a hygienic standpoint.

In other words, this synthetic cutting board cannot allow moisture to penetrate at all, so bacteria that cause food poisoning only adhere to the surface of the cutting board and do not penetrate inside. Bacteria attached to the surface can be removed by washing, so it is hygienic.

(Problem to be solved by the invention) However, even if it is a synthetic cutting board, if the surface is close to new and the surface is intact, bacteria existing on the surface can be removed by simple cleaning, but if the surface is used for a long period of time, the bacteria on the surface may be removed. Countless small knife scars occur. Food debris and bacteria that have penetrated deep into these wounds are difficult to remove with simple cleaning.

If these food particles and bacteria cannot be removed, the uncleanliness will not be resolved and the problem will continue to exist, and there is a risk of food poisoning.
Mold, bacteria, etc. accumulate in the scars, and these intertwine in a complex manner, causing stains and stains such as darkening, reddish browning, and yellowing.

By the way, as a solution to the various problems mentioned above when using a synthetic cutting board, the Japanese Patent Publication No. 55-63
Although an antibacterial cutting board as shown in No. 72 is known, this known antibacterial cutting board is insufficient and expensive, and is currently not in practical use. .

The purpose of this invention is to improve the above-mentioned problems by having antibacterial properties against bacteria that have invaded deep into the scars caused by kitchen knives, and which can be used for a long period of time by easily removing dents that occur when using the knife. To provide a cutting board which is highly versatile, has mold-proof and odor-proof properties, has a blade contact equivalent to that of a wood cutting board, can be colored in any color, is rich in variety, and is cost-reduced.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, this first invention arranges a plurality of first molded products made of synthetic resin in the vertical direction, and A second molded product made by adding and blending thiabendazole to a synthetic resin at an appropriate weight percent is inserted between the molds, and the first molding is applied to the entire circumferential side surface of the laminated first molded product and second molded product. A cutting board was constructed by thermally welding a third molded product made of the same material as the first molded product and thinner than the first molded product.

In addition, the second invention is to apply thiabendazole to the synthetic resin in an appropriate weight percent on the entire surface of the first molded product made of synthetic resin.
A second molded product that is thinner than the first molded product formed by adding and blending is heat-welded to form a fourth molded product, and a plurality of fourth molded products are laminated, and the same material as the first molded product is formed. A cutting board was constructed by thermally welding a fifth molded product made of the same material and thinner than the first molded product to the entire circumferential side surface of the laminated fourth molded product.

(Function) By employing the cutting board of the first invention, the cutting board has a plurality of first molded products molded from synthetic resin arranged in the vertical direction, and thiabendazole is appropriately added to the synthetic resin between the first molded products. The second product is formed by adding and blending in weight%.
The molded product is sandwiched between the molded products, and a third molded product made of the same material as the first molded product and thinner than the thickness of the laminated first molded product is thermally welded to the entire circumferential side surface of the first molded product and the second molded product. Since the second molded product sandwiched between the first molded products is
Protects the molded product. Therefore, even if a scar caused by the first molding on the top surface or a knife penetrates deep, the second molding containing thiabendazole is interposed, so there will be no scar until the next first molding. . Moreover, even if bacteria or dirt adheres to it, it will not grow inside, so it can be removed by simple cleaning. Third, if a dent occurs in the molded product, the second molded product and the next first molded product are separated with a cutter or the like, so that the surface of the next first molded product is exposed and used.

In addition, by adopting the second invention, the cutting board,
The cutting board is made by thermally welding a second molded product, which is thinner than the first molded product made by adding thiabendazole to the synthetic resin at an appropriate weight percentage, to the entire surface of the first molded product made of synthetic resin. A plurality of fourth molded products are laminated, and a fifth molded product made of the same material as the first molded product and thinner than the first molded product is added to the entire circumference of the laminated fourth molded product. Since the cutting board is thermally welded to the side surface, the surface of the cutting board is covered with the second molded material containing thiabendazole. Therefore, even if bacteria or dirt adheres to the surface of the cutting board, it can be removed by simple cleaning without breeding.

Moreover, when a dent occurs on the surface of the cutting board, the surface of the next fourth molded product is exposed and used by separating the fourth molded products using a cutter.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

In the cutting board of this example, 0.05 part (0.05%) of thiabendazole, which is white powder and has no odor, is added to 100 parts of a commercially available low-density polyethylene resin as a synthetic resin, and the molding temperature is 120°C. Some of the molded products obtained by injection molding are used. During the molding process of this molded product, no phenomena that would impair moldability occur, nor does it cause discomfort to the operator or irritation to the skin.

Thiabendazole is a white powder that is odorless and has a broad antibacterial spectrum.
It is known to be effective against deer fungi and has been used to control diseases in many foods and agricultural products. This thiabendazole is added to polyethylene to form a molded product, which is used in some cutting boards.As mentioned above, the amount of thiabendazole added to polyethylene is preferably about <0.05%. However, as a result of various experiments, if the amount of thiabendazole is less than 0.01%, the amount of thiabendazole is too small and the antibacterial effect disappears, resulting in a product similar to conventional synthetic cutting boards, which is not good.

Moreover, if it exceeds 5%, it becomes expensive and unprofitable. Therefore, the amount of thiabendazole is 0
．． The content is preferably 01 to 5.0%.

Mold resistance and bacterial coating tests were conducted using a molded product prepared by adding 0.05 part of thiabendazole to 100 parts of the polyethylene and injection molding, and the results are as follows.

(Margin below) (1) Mold resistance test results (2) Bacterial application test results, (Note) Indication of mold resistance The method of displaying test results is as follows.

However, *1: Number of bacteria per 100 cm2 *2 (%): Sterilization rate = (A-B)/AX100A・0
Bacteria count after n hours B: Bacteria count after n hours As can be seen from the above test results, the cutting board of this example had
Kurokabi 1 has excellent anti-fungal properties against red yeast, and also has excellent bactericidal properties against bacteria such as Escherichia coli and staphylococcus.

When thiabendazole is added to polyethylene, it is not only added to the surface but is evenly added to the entire surface, so even if you cut into it with a knife, thiabendazole is present in the area that the knife touches, preventing bacteria and No dust or dirt can get inside. Therefore, since bacteria and dirt simply adhere to the surface, they can be easily removed by simply washing without bleaching or scouring.

In addition, since the molded product contains thiabendazole added to polyethylene, it has elasticity, and when cutting food with a knife, the contact of the knife with the cutting board is not as hard as in conventional products. It is equivalent to the blade of a wood cutting board,
Good blade contact. Therefore, there is less wear on the knife, the number of times the knife is sharpened is reduced, and the knife can be used for a longer period of time.

Since thiabendazole is white and odorless, it exhibits its deodorizing effect even when used as a cutting board. Furthermore, since the cutting board itself can be colored in any color, it is possible to manufacture cutting boards in any color, thereby providing users with a wide variety of products.

As shown in FIGS. 1 and 2, a cutting board 1 partially using the molded product includes a plurality of first molded products 3, each having a thickness of 5 mm, made of polyethylene, arranged in the vertical direction. ing. Between the first molded parts 3, thiabenda pull was applied to polyethylene with a weight of 0. (For example, a second molded product 5 with a thickness of 2 mm is sandwiched and laminated.)

A plurality of these first molded products 3 and second molded products 5 are laminated.

The entire circumference of the side surface is made of the same material as the first molded article 3, that is, polyethylene, and has a thickness of, for example, 1.5 mm, which is thinner than the thickness of the first molded article '3. The third molded product 7 of mm is thermally welded and integrated to form the cutting board 1.

Even if the cutting board 1 obtained in this way penetrates deeply into the knife and reaches the wound on the package or the second molded product 5, and bacteria or dirt adheres inside, the second molded product 5 will not be affected. Because it contains the antibacterial thiabendazole, it does not allow bacteria to grow and is highly resistant to mold. In addition, if bacteria or dirt get inside (=J), please do not bleach or scouring.
Since it is removed by internal cleaning, it is always hygienic and highly odor-resistant.

Furthermore, if a dent occurs on the surface of the first molded product '3 after long-term use, the second molded product 5 and the first molded product 3 located below the second molded product 5 should be removed. Since the surface of the new first molded product 5 is exposed by cutting it off with a cutter or the like, it can be used for a long period of time corresponding to the number of first molded products 5 stacked. Since this cutting board 1 partially contains the antibacterial second molded product 5, the above-mentioned antibacterial effect is exhibited.

Another cutting board 1, as shown in FIGS. 3 and 4, is made of polyethylene and has a thickness of 5 mm, for example.
A second molded product 5 having a thickness of 2 mm, for example, which is thinner than the first molded product 3 made by adding and blending 0.05% by weight of thiabendazole to polyethylene, is thermally welded onto the entire surface of the first molded product 3. A plurality of 4 molded products 9 are stacked. Then, a fifth molded product 11 of, for example, 1 mm, which is made of the same material as the first molded product 3 and is thinner than the thickness of the first molded product, is thermally welded and integrated with the entire circumferential side surface of the plurality of laminated fourth molded products 9. After that, the cutting board 1 is completed.

Since the second molded product 5 is exposed on the surface of the cutting board 1 obtained in this way, the knife has a blade contact equivalent to that of a wood cutting board. In addition, even if the knife penetrates into the surface or deep and leaves a knife scar, the second molded product 5 exists on the front and back surfaces of the first molded product 3, so even if bacteria or dirt adheres to it, it will proliferate. It is highly resistant to mold and mildew.

In addition, if a dent occurs on the surface of the cutting board 1, the fourth molded product 11 can be separated by using a cutter or the like, and a new fourth molded product 11 will be exposed and used, so it can be used for a long time. I can do it.

Since only a portion of the antibacterial second molded material 5 is used in each of the above-mentioned cutting boards 1, the cost is significantly lower than that of a cutting board made entirely of the antibacterial second molded material 5. In addition to being able to reduce

Note that this invention can be implemented in other forms by making appropriate changes compared to the embodiments described above. For example, in this embodiment, polyethylene is used as the synthetic resin, but other resins such as vinyl chloride can also be used.

[Effects of the Invention] As can be understood from the above description of the embodiments, the cutting board according to the first invention has a first cutting board made of synthetic resin.
A plurality of molded products are arranged in the vertical direction, and a second molded product made by adding and blending thiabendazole to a synthetic resin in an appropriate weight percentage is inserted between the first molded products, and the second molded product is molded with the first molded product. A third molded product made of the same material as the first molded product and thinner than the first molded product is thermally welded to the entire circumferential side surface of the laminated second molded product, so that it is sandwiched between the first molded products. The embedded second molding protects the first molding below.

Therefore, even if a scar caused by a knife penetrates deeply into the first molded product on the upper surface, the second molded product containing thiabendazol is interposed, so the scar will not be created until the next first molded product. Moreover, even if bacteria or dirt adheres to the surface, it will not grow inside the surface, so it can be removed with simple cleaning. If a dent occurs in the first molded product, the second molded product and the next first molded product are separated using a cutter, and the surface of the next first molded product is detected and used. Can be used for a period of time.

In addition, the cutting board according to the second invention is a second molded product that is thinner than the first molded product, which is made by adding and blending thiabendazole to the synthetic resin in an appropriate weight percentage on the entire surface of the first molded product made of synthetic resin. are thermally welded to form a fourth molded product, a plurality of these fourth molded products are laminated, and a fifth molded product made of the same material as the first molded product and thinner than the first molded product is added to the laminated fourth molded product. Since the second molded product is thermally welded to the entire circumferential side surface of the fourth molded product, the surface of the cutting board is covered with the second molded product containing thiabendazole. Therefore, even if bacteria and dirt adhere to the surface of the cutting board, they can be removed by simple cleaning without breeding.

In addition, if a dent occurs on the surface of the cutting board, the surface of the next fourth molded product can be exposed by separating the fourth molded products with a cutter, etc., so it can be used for a long time. can.

1st. Since the cutting board in the second invention uses only a portion of the antibacterial second molded product, it is larger than the one in which the cutting board is made of the antibacterial second molded product.
It is possible to reduce the cost to 5 6 and achieve almost the same effect.

[Brief explanation of drawings]

FIG. 1 is a front sectional view of a cutting board according to the present invention, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, FIG. 3 is a front sectional view of another cutting board according to the invention, and FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3. FIG. 1...Chopping board 3...First molded object

Claims (2)

[Claims] (1) A second molded product formed by arranging a plurality of first molded products made of synthetic resin in the vertical direction, and adding and blending thiabendazole to the synthetic resin in an appropriate weight percent between the first molded products. A third molded product made of the same material as the first molded product and thinner than the first molded product is thermally welded to the entire circumferential side surface of the laminated first molded product and the second molded product. Characteristic cutting board. (2) On the entire surface of the first molded product made of synthetic resin, a second molded product that is thinner than the first molded product, which is made by adding and blending thiabendazole to a synthetic resin in an appropriate weight percent, is thermally welded. A plurality of fourth molded products are laminated, and a fifth molded product made of the same material as the first molded product and thinner than the first molded product is added to the laminated fourth molded product. A cutting board characterized by being thermally welded to the sides all around.