JPH11283246A - Magnetic sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent peeling of a magnetic tape from a sheet main body and to prevent malfunction of the recording medium for magnetic information by forming penetration preventing layers, which contact the tape, over the whole sides on the body. SOLUTION: Penetration preventing layers 9 are formed on a sheet main body 6 to cover the sides of a magnetic tape 4. The layers 9 contact the sides of the tape 4 and cover the gaps between the adhesive, which fixes the tape 4 to the body 6, and the body 6. By providing the layers 9 to contact the sides of the tape 4, no foreign matter such as oil penetrate the gap between the adhesive and the body 6. No limitation is made for the material of the layers 9 so far as the material has a good fixing characteristics. Colored or colorless printing ink of varnish may be used for the material. The sheet is also constructed so that the surfaces of a magnetic recording layer 7 and the layers 9 make a flat surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a process management magnetic sheet used in a manufacturing factory or the like.

[0002]

Conventionally, when a process of a product is controlled at a production site such as an electric product factory or a machine product factory, a magnetic sheet is attached to each product flowing on the production line, and the product is manufactured in each production line. Every time a worker enters predetermined information (for example, component mounting completion information) as magnetic information with respect to the magnetic sheet,
The magnetic sheet is inserted into a terminal device on the worker side to read the fixed information on the magnetic sheet side, and to send predetermined information from each manufacturing stage to the host computer side, and a process management system using the magnetic sheet. Many are assembled. As a magnetic sheet that can be used as a recording medium for such information, there is a magnetic sheet in which ink containing a magnetic substance is printed in a band shape on a predetermined portion of a sheet such as paper to form a magnetic recording layer. When a magnetic recording layer is formed, it is difficult to ensure smoothness on the surface of the magnetic recording layer. In particular, in the case of the above-mentioned process control in a production factory, paper is selected as a sheet in terms of cost and ease of disposal after use. When a magnetic sheet having a magnetic recording layer with low smoothness is used to form irregularities on the surface of the magnetic recording layer thus formed, there is a drawback that writing failure or reading failure of magnetic information tends to occur. Therefore, a magnetic sheet in which a magnetic tape having a smooth surface is adhered to a predetermined portion of the sheet is often used. FIGS. 4 and 5 show the magnetic sheet 1. The magnetic sheet 1 is provided with a magnetic tape 4 provided with a magnetic film 3 on a base material 2, and is adhered to a predetermined portion of one surface of a sheet body 6 via an adhesive 5. The structure has the recording layer 7. However, at the production site of the above-mentioned manufacturing factory, it is unavoidable that the hands of workers are easily stained with oil or the like, and the magnetic sheet is often handled with dirty hands. There is a problem that the magnetic tape 4 easily enters the gap between the adhesive 6 and the adhesive 5 and the magnetic tape 4 is easily separated from the sheet body 6. In view of the above circumstances, it is an object of the present invention to prevent oil from entering between the sheet body and the adhesive holding the magnetic tape, to prevent the magnetic tape from peeling from the sheet body, It is an object of the present invention to prevent the function as a recording medium for information from being impaired.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above problems, and is directed to a magnetic sheet having a magnetic recording layer in which a band-shaped magnetic tape is adhered to a predetermined portion of a sheet body, An object of the present invention is to provide a magnetic sheet characterized in that an anti-erosion layer in contact with the peripheral end of the magnetic tape is formed on the sheet body over the peripheral end.

[0004]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described in detail with reference to the embodiments shown in FIGS. 4 and 5 are denoted by the same reference numerals, and description thereof will be omitted. In the magnetic sheet 1 according to the present invention, as shown in FIG. 1, an anti-soak layer 9 is formed on the sheet body 6 over the peripheral end 8 of the magnetic tape 4. Then, as shown in the cross section of FIG. 2, the anti-soak layer 9 is in contact with the peripheral end 8 of the magnetic tape 4 and is located between the adhesive 5 holding the magnetic tape 4 and the sheet body 6. Is covered. Since the waterproof layer 9 is provided so as to be in contact with the peripheral end 8 of the magnetic tape 4, the space between the adhesive 5 and the sheet body 6 is covered, and oil or the like intrudes from the outside. do not do. The material of the anti-soak layer 9 is not limited as long as it has good fixability. For example, ordinary colored or colorless printing inks and varnishes can be used. An immersion layer can be formed. Further, in the example shown in FIG. 2, the surface of the immersion layer 9 has a gentle slope, but as shown in FIG. 3, the surface of the magnetic recording layer 7 and the surface of the immersion layer 9 are flush. May be used.

[0005]

As described above, according to the magnetic sheet of the present invention, there is provided a magnetic sheet having a magnetic recording layer in which a band-shaped magnetic tape is adhered to a predetermined portion of a sheet body,
An anti-corrosion layer in contact with the peripheral edge of the magnetic tape is formed on the sheet body over the peripheral edge of the magnetic tape. Even if such is adhered, the oil immersion layer reliably prevents the oil stain from invading between the magnetic tape and the sheet body, and thus the magnetic tape does not peel off, The magnetic sheet has a practically excellent effect, such as a magnetic sheet that does not impair the function as a recording medium for magnetic information.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an example of a magnetic sheet according to the present invention.

FIG. 2 is an explanatory diagram showing an example in cross section.

FIG. 3 is an explanatory view showing another example in cross section.

FIG. 4 is an explanatory view showing a conventional magnetic sheet.

FIG. 5 is an explanatory view showing a conventional example in cross section.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Magnetic sheet 2 ... Base material 3 ... Magnetic film 4 ... Magnetic tape 5 ... Adhesive 6 ... Sheet main body 7 ... Magnetic recording layer 9 ... Dip-proof layer

Claims (1)

[Claims] 1. A magnetic sheet having a magnetic recording layer in which a band-shaped magnetic tape is adhered to a predetermined portion of a sheet main body, the anticorrosion layer being in contact with the peripheral end of the magnetic tape over the peripheral end of the magnetic tape. Is formed on a sheet body.