JP3129671U - Book sheet for notebook or diary - Google Patents

Abstract

A notebook or diary binding sheet that has an antibacterial effect and prevents bacterial growth.
A binding sheet is made of a plastic sheet formed from at least a plastic material and an antibacterial agent is added. The binding sheet is used as a notebook or diary.
[Selection] Figure 1

Description

  The present invention relates to a notebook sheet or diary binding sheet and a notebook and diary using the binding sheet.

  Since the notebook or diary is usually handled by hand, the bacteria attached to the hand are likely to adhere to the binding sheet on the front side, and the attached bacteria are often worn and held. There is a possibility that it will be warmed and propagated, and there is also a possibility that the propagated bacteria will enter the body through hands.

  However, conventionally, there are no notebooks and diaries that take into account the bacteria attached to the binding sheet.

  The present invention has been made in view of such problems, and its purpose is to provide a notebook or diary binding sheet that has an antibacterial effect and prevents bacterial growth, and a notebook and diary using the binding sheet. It is to be.

  In order to achieve the above-mentioned object, the device according to claim 1 is a notebook sheet or diary binding sheet, which is composed of a plastic sheet formed from at least a plastic material and added with an antibacterial agent. It is characterized by that.

  The invention according to claim 2 is a notebook having the binding sheet according to claim 1.

  The invention according to claim 3 is a diary having the binding sheet according to claim 1.

  According to the present invention, since the growth of bacteria can be suppressed by the effect of the antibacterial agent, the notebook and the diary can be handled in a sanitary and safe manner.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the following embodiment.

  FIG. 1 is an overall perspective view showing an embodiment of a notebook according to the present invention. The notebook or diary 10 uses a binding sheet 12 as a cover. Note that both the “diary” and the “diary” are notebooks for performing schedule management, but the “diary” indicates a notebook having a larger size than the “diary”.

  The binding sheet 12 is composed of a plastic sheet, and the plastic sheet is formed using a vinyl-based or olefin-based plastic material as a main raw material. For example, polyvinyl chloride, polyethylene, polypropylene, EVA or the like can be used as a raw material. As a compounding example of a vinyl-type plastic sheet, it can be set as follows, for example.

Polyvinyl chloride 65% (mass)% to 70% (mass)%
Plasticizer 28% (mass)% to 35% (mass)%
Filler 3% (mass)% to 6% (mass)%
Stabilizer 2% (mass)% to 5% (mass)%
Foaming agent 0% (mass)% to 5% (mass)%
Colorant 2% (mass)% to 3% (mass)%

Moreover, as a compounding example of an olefin type plastic sheet, it can be set as follows, for example.

EVA 65 wt (mass)% to 70 wt (mass)%
Styrene-butadiene copolymer 28% (mass)% to 35% (mass)
Filler 3% (mass)% to 6% (mass)
Stabilizer 2% (mass)% to 5% (mass)
Foaming agent 0 wt (mass)% to 5 wt (mass)
Colorant 2% (mass)% to 3% (mass)

And in addition to the said mixing | blending, the antimicrobial agent is added to the plastic sheet. As antibacterial agents, there are inorganic antibacterial agents and organic antibacterial agents, both of which can be used. As the inorganic antibacterial agent, those obtained by dispersing and stabilizing silver, copper, zinc, aluminum or other metal or metal compound metal ions with an organic acid, a surfactant or the like can be used.
As a plastic sheet manufacturing process, a calendar molding method, a T-die extrusion molding method, an inflation molding method, or the like can be used.

  The plastic sheet may have a single layer structure or a laminated structure including a plurality of layers. For example, as shown in FIG. 4A, the plastic sheet has a laminated structure in which a backing 18 made of cloth or non-woven fabric is used as a base layer, and a foam layer 16 and a top layer 14 are laminated thereon. 4) or a single layer structure without a foamed layer as shown in FIG. 4C. In the case of a laminated structure, the antibacterial agent 20 can be added only to the top layer 14 on the outermost side, or can be added to both the top layer 14 and the foam layer 16, or simply It can be added to the entire layer.

  The antibacterial agent may be added in an amount of 3 to 7% by weight (mass) of the total composition of the layer.

  When the antibacterial agent is added only to the top layer, the thickness of the top layer 14 may be made thinner than the thickness of the foam layer 16, and the ratio of the thickness of the top layer 14 to the thickness of the entire laminated structure is about 0.1 to 0.2. Good. Specific thicknesses of the top layer 14 and the foam layer 16 may be about 0.1 to 0.2 mm and 0.7 to 1.0 mm, respectively. Accordingly, the antibacterial agent 20 can be effectively exerted on the surface of the binding sheet 12 without being buried in the top layer 14 that is the outermost layer.

  The binding sheet 12 can be configured by cutting the plastic sheet molded as described above into a required shape with a mold.

  When manufacturing a notebook or diary of the insertion method from this binding sheet 12, as shown in FIG. 3, the three sides of the pocket portion 22 are respectively connected to the edge of the binding sheet 12 on both sides of the back side of the binding sheet 12. Integrate by high frequency welding, ultrasonic welding or sewing along. The pocket portion 22 may be configured by folding a part of the binding sheet 12, or may be configured using a plastic sheet of the same type as the binding sheet 12, but using a separate plastic sheet. You may use the plastic sheet which consists of these materials. The presence or absence of the addition of an antibacterial agent is arbitrary in the pocket portion 22. Then, the notebook main body or diary main body 24 is inserted between the pocket portion 22 and the binding sheet 12 to complete.

  Further, when a bonded type notebook or diary is manufactured from the binding sheet 12, it is completed by bonding the front cover and the back cover of the notebook main body or the diary main body 24 to the back side of the binding sheet 12.

  The completed notebook or diary 10 can suppress bacterial growth by adding an antibacterial agent, and can be used hygienically with peace of mind.

  Polyvinyl chloride resin as a plastic material, calcium carbonate as a filler, plasticizer, stabilizer, and colorant are kneaded by heating in a bumper to make a compound. Then, a foaming agent is added to the mixing roll, and the foaming agent is compounded. Kneaded in and glued to the lining with a calendar to produce a foamed layer. Next, a polyvinyl chloride resin as a plastic material, calcium carbonate as a filler, a plasticizer, a stabilizer and a colorant are kneaded with a bumper heat to form a compound, and then an inorganic antibacterial agent is added to the mixing roll. An antibacterial agent is kneaded into the compound and bonded to the foamed layer by a calendar to produce a top layer. Thereafter, the foamed layer is foamed through a foaming furnace to form a plastic sheet.

  This plastic sheet was subjected to an antibacterial test in accordance with a quantitative test (bacterial solution absorption method) of JIS L1902.

(1) Test strain: Staphylococcus aureus

(2) Test strain: MRSA

(3) Test strain: E. coli

(4) Test strain: Pseudomonas aeruginosa

  From the above, it was found that the bacteriostatic activity value was 2.2 or more. Therefore, it has been found that a binding sheet made of this plastic sheet can be expected to have a sufficient antibacterial effect.

It is a whole perspective view showing the embodiment of the notebook or diary using the binding sheet of the present invention. It is a perspective view of the binding sheet of FIG. It is the expanded view seen from the inside of the binding sheet of FIG. It is sectional drawing of a binding sheet.

Explanation of symbols

10 Notebook or diary 12 Binding sheet 14 Top layer (topmost layer)
20 Antibacterial agent

Claims (3)

A binding sheet for a notebook or diary,
A notebook sheet or diary binding sheet characterized by comprising a plastic sheet formed from at least a plastic material and an antibacterial agent added thereto.   A notebook having the binding sheet according to claim 1. A diary having the binding sheet according to claim 1.

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