JP3417190B2 - Antibacterial card - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to cards such as cash cards, members' cards, credit cards, and medical examination cards, and more particularly to cards with an antibacterial function.

[0002]

2. Description of the Related Art As a card of this type, for example, a card body made of a synthetic resin such as polyvinyl chloride, a magnetic stripe provided at an arbitrary position of the card body, and a front side and a back side of the card body It is known that a coating layer or a coating layer such as a film-like sheet, which constitutes a main part, is provided, and the above-mentioned various names are given according to its use.

[0003]

By the way, since the antibacterial function is not particularly taken into consideration in the conventional card of this kind, when the card is used as a medical examination card of a hospital which has been rapidly popularized in recent years, the medical examination is performed. There is a problem that infection is caused by pathogenic bacteria attached to the card as a medium. Although it is possible to avoid infection by periodically disinfecting the above-mentioned examination card in a hospital or the like, there is a problem that the card is complicated to handle because the treatment for it is necessary.

The present invention has been made in view of such problems, and an object thereof is to provide a card provided with an antibacterial function without complicating the structure of the card itself. .

[0005]

That is, an antibacterial card according to the present invention is provided with the following antibacterial portion formed on the entire outermost surface side and rearmost surface side of the card body as a member separate from the card body. It is characterized by that.

The antibacterial portion having an antibacterial function is formed from a coating layer containing antibacterial agent powder on the outermost surface side or the rearmost surface side of the card body (claim 1 ) or an ink containing antibacterial agent powder. Print layer (claim)
2 ) may be provided and configured, or a film-like sheet in which the antibacterial agent powder is kneaded may be provided on the outermost surface side or the outermost surface side of the card body (claim 3 ). Also,
When the antibacterial part is formed of a film-like sheet in which antibacterial agent powder is kneaded, a magnetic stripe may be embedded in a part of the film-like sheet (claim 4 ).

1A to 1B are plan views of an antibacterial card embodying the invention of claim 4 and its BB.
FIG. 3 is a cross-sectional view of each. That is, the antibacterial card 1 includes a card base material 11 made of a white polyvinyl chloride resin and a printing layer 1 provided on the front and back surfaces thereof.
The card body 10 is composed of 2 and the plastic film (for example, polyvinyl chloride resin film) sheets 13 and 14 in which the antibacterial agent powder is kneaded on the outermost surface side and the lowermost surface side of the card body 10. The magnetic stripes 15 are laminated and embedded in the plastic film sheet 13. In this case, unlike the film-like sheet 13 in which the antibacterial agent powder is kneaded, the magnetic stripe 15 does not have an antibacterial function. Therefore, in a preferred embodiment, it is desirable that the antibacterial agent powder is mixed in the magnetic layer constituting the magnetic stripe 15 (claims).
5 ). The magnetic stripe is usually composed of a magnetic layer made of magnetic powder and a binder and a strip-shaped film supporting the magnetic layer. However, the antibacterial agent powder may be dispersed together with the magnetic powder in the magnetic layer. Also, a magnetic stripe without the above-mentioned strip-shaped film can be applied, and in this case as well, a structure may be adopted in which the magnetic powder and the antibacterial agent powder are dispersed in the magnetic layer.

As a more preferable embodiment, as shown in FIG. 2, film-like sheets 13 and 1 in which antibacterial agent powder is kneaded.
Coating layer 1 in which antibacterial agent powder is mixed on the surface of 4
It is desirable to further provide 6 (claim 6 ). However, depending on the application of the antibacterial card, the plastic film-like sheet 14 in FIG. 2 may be formed of a conventional plastic film-like sheet in which the antibacterial agent powder is not kneaded, or the above plastic film-like sheet. As for 13 and 14, these may be constituted by conventional plastic film sheets which are not kneaded with antibacterial powder (Claim 1 ).

In the antibacterial card shown in FIGS. 1 and 2, since the card substrate 11 is provided with the printing layers 12 on the front and back surfaces, the plastic film sheet 13,
Since the 14 and the coating layer 16 need to be made of a transparent material, and the magnetic stripe 15 is also visible to the naked eye, there is room for improvement in its appearance. The invention according to claim 7 relates to an invention in which this point is improved.

[0010] Namely, the invention according to claim 7, claim
On the premise of the antibacterial card according to the invention of 4 or 5, a printing layer made of an ink mixed with an antibacterial agent powder is provided on a plastic film-like sheet in which a magnetic stripe is embedded. .

3 and 4 show an example of the construction of an antibacterial card embodying the invention of claim 7 . That is, the antibacterial card shown in FIG. 3 is composed of a card base material 11 made of a white polyvinyl chloride resin and the like, and a plastic film (polyester film laminated on the front and back surfaces of the card base material 11 and kneaded with antibacterial agent powder). Vinyl chloride resin film) sheets 13, 14; magnetic stripes 15 embedded in the plastic film sheet 13; and inks provided on both sides of the plastic film sheets 13, 14 and mixed with antibacterial agent powder. Print layer 17
The coating layer 16 provided on both sides of each printing layer 17 and mixed with the antibacterial agent powder constitutes a main part thereof. However, the coating layer 16 in which the antibacterial agent powder is mixed may be omitted depending on the use of the antibacterial card, or the plastic film sheets 13 and 1 may be used.
As for No. 4, these may be constituted by conventional plastic film-like sheets which are not kneaded with antibacterial powder. Further, the antibacterial card shown in FIG. 4 is obtained by changing the configuration of the back surface side of the card base material 11. That is, a printing layer 17 'made of ordinary printing ink is provided on the back side of the card substrate 11, and a plastic film (polyvinyl chloride resin film or the like) sheet 14 in which antibacterial agent powder is kneaded is provided on the printing layer 17'. Are laminated. However, the coating layer 16 in which the antibacterial agent powder is mixed may be omitted depending on the use of the antibacterial card, and the plastic film-like sheet 13 may be formed by a conventional method in which the antibacterial agent powder is not kneaded. Needless to say, it may be made of a plastic film sheet.

Next, the invention according to claim 8 relates to the invention in which the above-mentioned antibacterial agent powder is specified.

That is, the invention according to claim 8 is the claim
Based on the antibacterial card according to the invention described in 1 to 7 , the antibacterial agent powder is composed of antibacterial zeolite.

The antibacterial zeolite has the general formula xM _n ²
_{O · Al 2 O 3 · ySiO} 2 · zH 2 O ( where, x and y are each coefficient of the metal oxide and silica in the case of a 1 on the basis of the Al ₂ O _3, z is the coefficient of crystal water A part or all of the ion-exchangeable metal (M) of the synthetic zeolite represented by
It has a structure substituted with at least one metal ion selected from the group consisting of zinc, mercury, tin, lead, bismuth, cadmium, and chromium. For example, trade name "Kanebo Yakuhin Co., Ltd." Bactekiller ”(registered trademark). In addition, this antibacterial zeolite,
Usually, it is provided in a masterbatch (pellet form). When compounding antibacterial agent powder into a plastic film sheet, the resin pellets that compose the sheet and the masterbatch of antibacterial agent powder are mixed and melted. Applied.

In the present invention, constituent materials other than the above-mentioned antibacterial zeolite (for example, a card base material forming a main part of the card body, a coating layer, ink, a plastic film sheet, a magnetic stripe, etc.),
This kind of material applied in the prior art can be applied as it is.

Here, the particle size of the antibacterial agent powder mixed or kneaded in the coating layer, the printing layer or the plastic film sheet in the antibacterial card according to any one of claims 1 to 8 is basically arbitrary. However, when this antibacterial agent powder is composed of a powder having a single particle size (in the case where the antibacterial agent powder has a particle size distribution, it means a powder group having a single particle size distribution), the reason is as follows. It may be necessary to increase the mixing ratio of the antibacterial agent powder to be mixed or kneaded in the coating layer, the printing layer or the plastic film-like sheet, which causes the cost of the antibacterial card to be high or the coating layer, The transparency and physical strength of the printed layer or the plastic film-like sheet may be slightly reduced.

That is, when the antibacterial agent powder is dispersed in the coating layer, the printing layer, etc., the powders having different particle diameters fill the gaps of the powders rather than the powders having a single particle diameter. It is easy to disperse and it is relatively easy to obtain uniform dispersion. Therefore, in order to uniformly disperse the antibacterial agent powder in the coating layer, the printing layer, or the like, a mixture of antibacterial agent powders having different particle sizes (if the antibacterial agent powder has a particle size distribution, a plurality of particles having different particle size distributions are used). It is more advantageous to apply the mixture of the antibacterial powder group of.

From the antibacterial effect of the antibacterial agent, it is more advantageous to apply a mixture of antibacterial agent powders having different particle sizes. That is, in order for the antibacterial agent powder mixed or kneaded in the coating layer, the printing layer or the plastic film-like sheet to exert an antibacterial effect, the antibacterial agent is applied from the surface of the coating layer, the printing layer or the plastic film-like sheet. Part of the powder must be exposed,
It has been confirmed that when the proportion of exposed antibacterial agent powder is low, its antibacterial action is also low. Then, in the antibacterial card according to the present invention, the surface of the coating layer, the printing layer or the plastic film-like sheet formed on the front surface side or the back surface side of the card body at the time of manufacturing is hot pressed by a metal mirror surface plate or the like. Since the laminating and laminating step is performed, when the antibacterial agent powder a having a single particle size is applied as shown in the conceptual diagram of FIG.
Since the height of the antibacterial agent powder a exposed from the surface of the printing layer or the plastic film sheet b is substantially the same,
The antibacterial agent powder a mixed or kneaded in the coating layer, the printing layer, or the plastic film sheet b during the above-mentioned lamination laminating step is pressed substantially evenly toward the inside thereof, as shown in FIG. As shown in the conceptual diagram of), each antibacterial agent powder a is uniformly embedded in the coating layer, the printing layer or the plastic film sheet b. For this reason, the proportion of the antibacterial agent powder a exposed from the surface of the coating layer, the printing layer or the plastic film-like sheet b becomes low, and the low dispersibility of the antibacterial agent powder acts on each other to maintain a constant antibacterial effect. Have a limit of. On the other hand, when a mixture of antibacterial powders having different particle diameters is applied, FIG.
As shown in the conceptual diagram, the height of the antibacterial agent powder a exposed from the surface of the coating layer, the printing layer or the plastic film sheet b differs depending on the size of the particle size. In addition, most of the antibacterial agent powder a ′ having a large particle size is pressed during the laminating and laminating step, and the antibacterial agent powder a ″ having a small particle size is less likely to be affected by the laminating and laminating step. As shown in B), the proportion of the antibacterial agent powder a exposed from the surface of the coating layer, the printing layer, or the plastic film-like sheet b is increased, and the dispersibility of the antibacterial agent powder also acts so that the antibacterial effect thereof is increased. The invention according to claim 9 is based on such a technical reason.

That is, the invention according to claim 9 is
Based on the antibacterial card described in any one of 1 to 8, the antibacterial agent powder is composed of a mixture of antibacterial agent powders having different particle sizes.

The term "mixture of antibacterial agent powders having different particle diameters" means a mixture of antibacterial agent powders of a plurality of kinds of particle diameters when the antibacterial agent powder does not have a particle size distribution.
When the antibacterial agent powder has a particle size distribution, it means a mixture of a plurality of antibacterial agent powder groups having different particle size distributions as described above.

According to the ninth aspect of the invention, since the mixture of the antibacterial agent powders having different particle sizes is applied, the dispersibility of the antibacterial agent powder is increased and the antibacterial agent having a small particle size is used. Since the agent powder is less susceptible to the effects of the laminating and laminating process, it is possible to exert a sufficient antibacterial effect with a small amount of the antibacterial agent powder, and the ratio of the antibacterial agent powder blended in the coating layer, the printing layer or the plastic film sheet. Can be reduced.

Therefore, the transparency and physical strength of the coating layer, the printing layer or the plastic film sheet in which the antibacterial agent powder is mixed or kneaded is not easily lowered, and the manufacturing cost of the antibacterial card can be reduced. Have.

In order to increase the degree of exposure of the antibacterial powder mixed in from the surface side of the coating layer or the printing layer, the film thickness of the coating layer or the printing layer when dried is set to the antibacterial agent powder. The average particle size may be set smaller than the average particle size. The invention according to claims 10 and 11 is made for such a reason.

That is, the invention according to claim 10 is based on the antibacterial card according to claim 9 , and the thickness of the coating layer mixed with the antibacterial agent powder when dried is the average particle diameter of the antibacterial agent powder. The invention according to claim 11 is characterized in that the thickness of the printed layer containing the antibacterial agent powder when dried is smaller than the average particle diameter of the antibacterial agent powder. It is characterized in that it is set as follows.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[First Embodiment] As shown in FIGS. 1 (A) and 1 (B), an antibacterial card 1 according to this embodiment has a card substrate 11 made of a white polyvinyl chloride resin and a table. Printing layer 12 provided on the back side and made of normal printing ink
The card body 10 is composed of and an inorganic antibacterial powder (an antibacterial zeolite with a particle size of 3 μm, sold by Kanebo Chemical Co., Ltd., trade name: BACTEKILLER MB- 102DC) kneaded plastic film (made of polyvinyl chloride resin)
Sheets 13 and 14 are laminated, and a magnetic stripe 15 is embedded in the plastic film sheet 13.

The plastic film sheet 13,
The compounding ratio of the above inorganic antibacterial agent powder in No. 14 was 0.20% by weight.

[Test Method for Antibacterial Property] Next, an antibacterial property evaluation test was conducted on the antibacterial card according to this embodiment by the following method.

First, the antibacterial card was added to Escherichia coli (Escherichi
0.2 ml of bacterial solution of a coli IFO 3301) was inoculated, and a polyethylene film was adhered thereto, and stored at 35 ° C., and after 24 hours of storage, surviving bacteria were recovered by SCDLP medium [Nippon Pharmaceutical Co., Ltd.]. Washed out. The viable cell count of this wash-out solution was measured by the agar plate culture method (35 ° C., 2 days) using a cell count measuring medium, and converted into the viable cell count per card.

As a control, the same amount of the bacterial solution as that inoculated on the antibacterial curd was inoculated into a petri dish and tested in the same manner, and the measurement at the start of storage was performed by the control.

For comparison, a card having the same structure as that of this embodiment was prepared except that the inorganic antibacterial agent powder was not added (Comparative Example 1). Was inoculated and the same test was conducted. The results are shown in Table 1.

[Second Embodiment] The mixing ratio of the inorganic antibacterial powder (antibacterial zeolite with a particle size of 3 μm, Bactekiller MB-102DC, sold by Kanebo Chemical Co., Ltd.) in the plastic film-like sheets 13 and 14 is 0. .2
It is substantially the same as the antibacterial card according to the first embodiment except that it is 5% by weight.

Then, the antibacterial card according to this embodiment was also inoculated with the same bacterial solution and the same test was conducted. The results are shown in Table 1.

[Third Embodiment] The mixing ratio of the inorganic antibacterial agent powder (antibacterial zeolite with a particle size of 3 μm, Bactekiller MB-102DC, sold by Kanebo Chemical Co., Ltd.) in the plastic film sheets 13 and 14 is 0. .3
It is substantially the same as the antibacterial card according to the first embodiment except that it is 0% by weight.

Then, the antibacterial card according to this embodiment was also inoculated with the same bacterial solution and the same test was conducted. The results are shown in Table 1.

[Fourth Embodiment] The mixing ratio of the inorganic antibacterial powder (antibacterial zeolite with a particle size of 3 μm, Bactekiller MB-102DC, sold by Kanebo Chemical Co., Ltd.) in the plastic film sheets 13 and 14 is 0. .5
It is substantially the same as the antibacterial card according to the first embodiment except that it is 0% by weight.

Then, the antibacterial card according to this embodiment was inoculated with the same bacterial solution and the same test was conducted. The results are shown in Table 1.

[Fifth Embodiment] The mixing ratio of the inorganic antibacterial agent powder (antibacterial zeolite with a particle size of 3 μm, Bactekiller MB-102DC, sold by Kanebo Chemical Co., Ltd.) in the plastic film-like sheets 13 and 14 is 1. .0
It is substantially the same as the antibacterial card according to the first embodiment except that it is 0% by weight.

Then, the antibacterial card according to this embodiment was also inoculated with the same bacterial solution and the same test was conducted. The results are shown in Table 1.

[Sixth Embodiment] Inorganic antibacterial agent powder (antibacterial zeolite brand name Bactekiller MB-102DC sold by Kanebo Chemical Co., Ltd.) in the plastic film sheets 13 and 14 has a particle size of 1 μm and 3 μm.
The antibacterial card according to the first embodiment is substantially the same as the antibacterial card according to the first embodiment except that a mixture obtained by uniformly blending three kinds of m and 5 μm is applied and that the mixing ratio is 0.20% by weight. .

Then, the antibacterial card according to this embodiment was also inoculated with the same bacterial solution and the same test was conducted. The results are shown in Table 1.

[Seventh Embodiment] Inorganic antibacterial agent powder (antibacterial zeolite manufactured by Kanebo Chemical Co., Ltd., trade name Bactekiller MB-102DC) in the plastic film sheets 13 and 14 has a particle size of 1 μm and 3 μm.
m is substantially the same as the antibacterial card according to the first embodiment, except that a mixture obtained by evenly blending three kinds of 5 μm is used and the mixing ratio is 0.25% by weight. .

Then, the same bacterial solution was inoculated on the antibacterial card according to this embodiment, and the same test was conducted. The results are shown in Table 1.

[Eighth Embodiment] Inorganic antibacterial agent powder (antibacterial zeolite trade name Bactekiller MB-102DC, sold by Kanebo Yakuhin Co., Ltd.) in the plastic film sheets 13 and 14 has a particle size of 1 μm and 3 μm.
m is the same as the antibacterial card according to the first embodiment except that a mixture obtained by evenly blending three kinds of 5 m and 5 μm is applied and the mixing ratio is 0.30% by weight. .

Then, the antibacterial card according to this embodiment was also inoculated with the same bacterial solution and the same test was conducted. The results are shown in Table 1.

[Ninth Embodiment] Inorganic antibacterial agent powder (antibacterial zeolite trade name Bactekiller MB-102DC sold by Kanebo Chemical Co., Ltd.) in the plastic film sheets 13 and 14 has a particle size of 1 μm and 3 μm.
The antibacterial card is substantially the same as the antibacterial card according to the first embodiment except that a mixture obtained by uniformly blending three kinds of m and 5 μm is applied and the mixing ratio is 0.50% by weight. .

The same test was performed on the antibacterial card according to this embodiment by inoculating the same bacterial solution. The results are shown in Table 1.

[0048]

[Table 1]

"Control": The petri dish was inoculated with the same amount of the bacterial solution as that inoculated into the curd. “*”: Not tested.

[Evaluation Test of Antibacterial Property] Usually, it is judged that the antibacterial effect was obtained when the number of inoculated viable bacteria decreased by 2 orders after 24 hours. Therefore, it can be confirmed that the antibacterial cards according to the respective embodiments except the antibacterial card according to the first embodiment have a sufficient antibacterial function.
The antibacterial card according to the first embodiment has a slightly weaker antibacterial effect than the antibacterial cards according to other embodiments.
It can also be confirmed that it is superior to the antibacterial card according to Comparative Example 1.

Further, in the antibacterial cards according to the first embodiment and the sixth embodiment, the latter antibacterial card has a higher antibacterial function even though the mixing ratio of the antibacterial powder is the same. ing. Further, even in the antibacterial cards according to the second embodiment and the seventh embodiment, the latter antibacterial card has a higher antibacterial function even though the mixing ratio of the antibacterial agent powder is the same. From these results, it was also confirmed that applying the mixture of the antibacterial agent powders having different particle sizes has a higher antibacterial effect than the case of applying the antibacterial agent powder having a single particle size.

The antibacterial zeolite applied in each of the embodiments (Bactekiller MB-102DC, trade name)
Has been confirmed to be safe with no toxicity in various tests, has excellent stability, and has almost no change over time, providing a permanent antibacterial effect. Further, since it is also excellent in heat resistance and acid-alkali resistance, it is a material suitable as the antibacterial agent powder according to the present invention.

[Tenth Embodiment] As shown in FIG. 4, an antibacterial card according to this embodiment is provided with a printing layer 17 'made of ordinary printing ink on the back side thereof and white polyvinyl chloride. A card base material 11 made of resin and an inorganic antibacterial agent powder (particle size 3
μm Antibacterial Zeolite Product name Bactekiller MB-1
02DC) is kneaded in an amount of 0.50% by weight, and has a plastic film (made of polyvinyl chloride resin) sheet 14 and a magnetic stripe 15 provided on a surface side of the card base material 11 and a part of the magnetic antibacterial material. A sheet 13 of plastic film (made of polyvinyl chloride resin) in which the agent powder is not kneaded, a print layer 17 formed on the surface of the plastic film sheet 13 and made of a normal printing ink, and a surface of the print layer 17 Its main part is composed of an acrylic coating layer 16 provided on the above and mixed with 0.50% by weight of the above-mentioned inorganic antibacterial agent powder.

The antibacterial card according to this embodiment was also inoculated with the same bacterial solution as in the first embodiment, and the same test was conducted. The results are shown in Table 2. For comparison, a card having the same structure as that of the tenth embodiment was prepared except that no inorganic antibacterial agent powder was added (Comparative Example 2), and this card was also inoculated with the same bacterial solution. Then, the same test was performed. The results are also shown in Table 2.

[Eleventh Embodiment] Inorganic antibacterial agent powder in the acrylic coating layer 16 (antibacterial zeolite with a particle size of 3 μm, trade name Bactekiller MB-102DC).
Is approximately the same as the antibacterial card according to the tenth embodiment, except that the compounding ratio is 1.00% by weight.

Then, the same bacterial solution was inoculated on the antibacterial card according to this embodiment and the same test was conducted. The results are shown in Table 2.

[0057]

[Table 2]

"Control": A petri dish was inoculated with the same amount of the bacterial solution as that inoculated into the curd. “*”: Not tested.

[Evaluation Test of Antibacterial Property] As described above, if the number of live bacteria inoculated decreases by 2 orders after 24 hours, it is judged that the antibacterial effect was obtained. Therefore, it can be confirmed that the antibacterial card according to each embodiment has a sufficient antibacterial function.

[0060]

According to the inventions according to claims 1 to 11 , the card body is formed on the entire front surface and back surface of the card body.
Since it has an antibacterial portion composed of a separate member, it becomes possible to impart an antibacterial function to the card body.

Therefore, when it is applied to a medical examination card for hospitals and various key cards that are handled by an unspecified number of people, it has the effect of preventing infections and the like mediated by these cards. Further, even when it is used for other cards (for example, a CD card, a credit card, etc.), it has an antibacterial function, so that it is very clean and can be used with peace of mind.

Next, according to the invention of claim 1 , the antibacterial part is constituted by a coating layer mixed with antibacterial agent powder, and according to the invention of claim 2 , the antibacterial part comprises antibacterial agent powder. According to the invention according to claims 3 to 4 , which is composed of a printing layer made of mixed ink, the composition of the card itself is complicated because the antibacterial part is composed of a plastic film sheet kneaded with antibacterial agent powder. It has the effect of providing an antibacterial function to the card body without

Further, according to the invention of claim 5 , the antibacterial agent powder is mixed in the magnetic layer forming the magnetic stripe embedded in the plastic film-like sheet, and the invention of claim 6 provides A coating layer containing antibacterial agent powder is provided on the plastic film-like sheet having the magnetic stripe in which the antibacterial agent powder is mixed in the magnetic layer. According to the invention of claim 7 , the antibacterial agent is contained in the magnetic layer. A printing layer made of ink mixed with antibacterial agent powder is provided on the plastic film-like sheet having the above-mentioned magnetic stripe in which the agent powder is blended, so that the card itself is better without complicating the structure of the card itself. Has the effect of imparting various antibacterial functions.

Further, according to the invention of claim 9 , since the mixture of the antibacterial agent powders having different particle diameters is applied as the antibacterial agent powder, the dispersibility of the antibacterial agent powder is increased,
Moreover, since the antibacterial agent powder having a small particle size is less likely to be affected by the laminating and laminating process, it is possible to exert a sufficient antibacterial effect with a small amount of the antibacterial agent powder. It is possible to reduce the mixing ratio of the antibacterial agent powder.

Therefore, the transparency and the physical strength of the coating layer, the printing layer or the plastic film sheet in which the antibacterial agent powder is mixed or kneaded are not easily lowered, and the manufacturing cost of the antibacterial card can be reduced. Have.

Further, according to the invention of claim 10 , the thickness of the coating layer containing the antibacterial agent powder made of a mixture of the antibacterial agent powders having different particle diameters when dried is the average particle diameter of the antibacterial agent powder. Is set to be smaller,
Further, according to the invention of claim 11 , the thickness of the printing layer containing the antibacterial agent powder, which is a mixture of the antibacterial agent powders having different particle diameters, when dried is smaller than the average particle diameter of the antibacterial agent powder. It is possible to increase the degree of exposure of the antibacterial agent powder exposed from the surface side of the coating layer or the printing layer because it is set so that a higher antibacterial function is given to the card body with a smaller amount of antibacterial agent powder. It has the effect of being able to.

[Brief description of drawings]

FIG. 1 (A) is a plan view of an antibacterial card showing an embodiment of the present invention, and FIG. 1 (B) is a sectional view taken along the line BB of FIG. 1 (A).

FIG. 2 is a cross-sectional view of an antibacterial card showing another embodiment.

FIG. 3 is a cross-sectional view of an antibacterial card showing another embodiment.

FIG. 4 is a cross-sectional view of an antibacterial card showing another embodiment.

FIG. 5 (A) is a conceptual diagram showing the exposure degree of the antibacterial agent powder before the laminating and laminating step when the antibacterial agent powder having a single particle size is applied, and FIG. 5 (B) is a diagram after the laminating and laminating step. The conceptual diagram which shows the exposure degree of antibacterial agent powder.

FIG. 6 (A) is a conceptual diagram showing the degree of exposure of the antibacterial agent powder before the laminating and laminating step when a plurality of antibacterial agent powders having different particle sizes are applied, and FIG. 6 (B) is a diagram after the laminating and laminating step. 6 is a conceptual diagram showing the degree of exposure of the antibacterial powder in FIG.

[Explanation of symbols]

1 Antibacterial card 10 card body 11 Card base material 12 printing layers 13 Plastic film sheet 14 Plastic film sheet 15 magnetic stripe

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁷ Identification code FI G06K 19/06 G11B 5/80 G11B 5/80 G06K 19/00 B (56) Reference JP-A-4-312898 (JP, A) ) JP-A-6-239713 (JP, A) JP-A-6-305903 (JP, A) JP-A-6-263611 (JP, A) JP-A-6-183728 (JP, A) JP-A-4- 224505 (JP, A) Registered utility model 3011929 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B42D 5/00 -15/10

Claims (11)

(57) [Claims] 1. The entire front and back sides of the card body
In each of the antibacterial cards provided with an antibacterial part, at least one of the antibacterial parts provided on the outermost surface side and the outermost surface side of the card body is constituted by a coating layer mixed with an antibacterial agent powder. Antibacterial card to do. 2. The entire front and back sides of the card body
In an antibacterial card having antibacterial parts, at least one of the antibacterial parts provided on the outermost surface side and the lowermost surface side of the card body is composed of a printing layer made of ink mixed with antibacterial agent powder. Antibacterial card characterized by. 3. The entire front and back sides of the card body
In an antibacterial card each having an antibacterial part, at least one of the antibacterial parts provided on the outermost surface side and the lowermost surface side of the card body is constituted by a plastic film sheet kneaded with antibacterial agent powder Antibacterial card to be. 4. The antibacterial card according to claim 3 , wherein a magnetic stripe is embedded in a part of the plastic film-like sheet in which the antibacterial agent powder is kneaded. 5. A method according to claim 4, characterized in that the antibacterial agent powder are blended into the magnetic layer constituting the magnetic stripe
Antibacterial card described. 6. A coating layer containing an antibacterial agent powder is provided on the plastic film-like sheet in which the magnetic stripe is embedded.
The antibacterial card described in 4 or 5 . 7. The antibacterial property according to claim 4 or 5, wherein a printing layer made of an ink mixed with an antibacterial agent powder is provided on the plastic film-like sheet in which the magnetic stripe is embedded. card. 8. The antibacterial card according to any one of claims 1 to 7 , wherein the antibacterial agent powder is composed of antibacterial zeolite. 9. the antibacterial agent powder, antibacterial card according to claim 1, characterized in that it is constituted by a mixture of different particle sizes antimicrobial agent powder. Thickness during the drying of 10. antimicrobial powder coating layer by mixing is according to claim 9, characterized in that it is set to be smaller than the average particle size of the antibacterial agent powder Antibacterial card. Thickness during the drying of 11. print layer obtained by mixing the antibacterial agent powder, according to claim 9, characterized in that it is set to be smaller than the average particle size of the antibacterial agent powder Antibacterial card.