JPH091952A - Antibacterial treating method for printed matter of cover of notebook - Google Patents

Abstract

PURPOSE: To be able to increase the antibacterial effect of a printed matter such as the cover of a notebook and to sanitarily use it by printing an arbitrary design on the surface of a sheet by using printing ink, and then coating it with powder-like antibacterial agent dissolved in water. CONSTITUTION: In the case of antibacterial treatment of the cover of a notebook, first an arbitrary design is printed on a sheet 1 by using printing ink to form a printing ink layer 2. Then, the layer 2 is coated with a powder-like antibacterial agent dissolved in water preferably by offset printing to form an antibacterial agent coating layer 3. As the agent, a substance of a metal (e.g., silver) or an organic (e.g., benzal conium, cetylpyridinium) having antibacterial performance is intercalated (ion exchanged) to a hard soluble phosphate to be used. Such an antibacterial agent is obtained by preferably adding about 2.5% of the substance to water of 1kg.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antibacterial treatment method for printed matter such as a notebook cover.

[0002]

2. Description of the Related Art Bacteria such as Escherichia coli are liable to adhere to a printed matter such as a cover of a notebook, which is not preferable for hygiene. Therefore, in order to keep them clean, antibacterial treatment is desired. By the way, when antibacterial treatment is applied to paper products,
It is a common method to allow the paper to be impregnated with an antibacterial agent. However, in the case of printed matter, since the surface of the paper is covered with the printing ink, there is a problem that the effect of the antibacterial agent is weak.

[0003]

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a novel antibacterial treatment method for printed matter such as the cover of a notebook, which can enhance the antibacterial effect of the printed matter such as the cover of a notebook and can be extremely hygienic.

[0004]

In order to achieve the above object, the method for antibacterial treatment of printed matter such as the cover of a notebook according to the present invention is such that an arbitrary design is first printed on the surface of the sheet 1 using a printing ink. Then, a powdery antibacterial agent dissolved in water is further applied thereon, which is a step characterized by the above.

In the present specification, the "powdered antibacterial agent dissolved in water" means an antibacterial agent which is not dissolved but is dispersed in water, in addition to a powdered antibacterial agent dissolved in water. Agents are also included.

[0006]

Since the antibacterial agent coating layer dissolved in water is formed on the printing ink layer, the antibacterial agent easily acts on the bacteria attached to the surface.

[0007]

EXAMPLE An antibacterial treatment method for a notebook cover will be described below as an example of the present invention. First, an arbitrary design is first printed on a paper sheet by using a printing ink. As the printing ink, an ink having the following composition can be used. Pigment 15-25 (%) Synthetic resin 25-30 Drying oil 20-25 Petroleum solvent 15-20 Film strengthening agent 1-3 Set-off preventing agent 0.5-2.5 Dryer and other solvents 1-3

Next, a powdered antibacterial agent dissolved in water is applied onto the printing ink layer. Offset printing is preferred as the method of applying. Here, as the antibacterial agent, a sparingly soluble phosphate is intercalated (ion-exchanged) with a metal-based (eg, silver) or organic-based (eg, benzalkonium, cetylpyridinium) substance having antibacterial properties. Can be used.

The above-mentioned antibacterial agent is about 2.
It is preferable to add 5%.

FIG. 1 shows a partial cross section of the cover of a notebook which has been subjected to antibacterial treatment according to the above embodiment of the present invention. In the figure, reference numeral 1 is a notebook cover sheet, reference numeral 2 is a printing ink layer formed on the sheet 1, and reference numeral 3 is an antibacterial solution formed on the printing ink layer 2 and dissolved in water. It is an agent coating layer. In the antibacterial agent coating layer 3 dissolved in water, water evaporates due to drying, so that only the antibacterial agent finally adheres onto the printing ink layer 2.

[0011]

INDUSTRIAL APPLICABILITY As described above, the antibacterial treatment method for a printed matter such as a notebook cover of the present invention is as follows. First, an arbitrary design is printed on the surface of the paper with a printing ink and then the design is dissolved in water. By taking the step of applying a powdered antibacterial agent further, the antibacterial agent easily acts on bacteria adhering to the surface, so that the antibacterial effect of the printed matter such as the cover of the notebook is increased and it becomes extremely hygienic. effective.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view of a cover of a notebook embodying the present invention.

[Explanation of symbols]

 1 paper 2 printing ink layer 3 antibacterial agent coating layer dissolved in water

Claims (1)

[Claims] 1. A printed matter such as a notebook cover, characterized in that an arbitrary design is first printed on the surface of the paper with a printing ink, and then a powdered antibacterial agent dissolved in water is further applied thereon. Antibacterial treatment method.