JP2756358B2 - Record for verification - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial application field) The present invention relates to a bar code reader having a pearl luster of an arbitrary hue and a conventionally used arbitrary reading wavelength, and an OC.
The present invention relates to a collation record that can be read by an optical reader such as R.

(Prior art) Conventionally, logistics management, product management, material management, inventory management, PO
2. Description of the Related Art In management systems such as the S system, information input using a barcode is performed to eliminate the complexity of key input and bookkeeping. For barcode marking, offset marking, gravure printing, flexographic printing, letterpress printing, screen printing, etc. are used to create a large number of barcodes of the same type by printing, as well as thermal transfer, thermal coloring, and wire dot type bars. There are in-store marking, in-house marking, or on-demand marking that creates a limited amount of individual bar codes using printers such as code printers, ink jet printers, and laser printers. By measuring using a light source such as 632.8 nm He-Ne laser, 660 nm light emitting diode, 670 nm visible light semiconductor laser, 690 nm light emitting diode, 780 nm semiconductor laser, 940 nm infrared light emitting diode, etc.
Code information is easily input, and data processing is performed by a computer.

The inks used in these barcodes generally use carbon black, which has a wide range of absorption from the visible region to the near-red region, as a pigment. Dark-colored chromatic inks such as blue and dark green, or inks using blue-green pigments that absorb at 600-700 nm when detecting using a visible light source of 600-700 nm are also used. . However, since the color is limited to cool colors such as brown, blue, and green, there is a drawback in that the color restrictions on the design are large.

In addition, ink using metal powder is also used in source marking, and the bar code with metallic luster such as gold and silver has a high specular reflectance, so the reflection intensity of the specific light is measured. However, there is a drawback that the color is limited to a metallic color such as gold or silver.

(Problems to be Solved by the Invention) In view of such a problem, the present invention focuses on the fact that a material that causes specular reflection can be read by a conventional detection device that measures the reflection intensity of light, and is limited to dark and cool colors. It is intended to provide a collation record which has any color including light and warm colors and can be read by a conventional optical reading device such as a bar code reader of any reading wavelength and an OCR. It is.

[Configuration of the invention]

(Means for Solving the Problems) That is, the present invention provides a method in which a colored layer and a specular gloss layer containing a pearl pigment are sequentially laminated on at least one surface of an information medium having no or little specular gloss, or a specular gloss containing a pearl pigment. Layer and a transparent colored layer containing a highly transparent coloring material are sequentially laminated and patterned into a shape corresponding to information, and optically reading the difference between the specular gloss layer and the specular reflectance of the information medium. And a collation record.

The collation record, the optical reading device such as a normal bar code reader OCR to read the information by measuring the reflection intensity of visible or near infrared light,
It can be read in the same manner as black letters, numbers, or symbols, and is effective for collating product lot numbers, product numbers, and the like assigned to various products for product management.

In the present invention, the coloring layer is superimposed on the specular gloss layer. However, a coloring layer may be present in a portion other than the specular gloss layer. Alternatively, the specular gloss layer and the coloring layer may be overlapped, and the other coloring layers may be formed on the specular gloss layer. May be formed in a portion including

The pearl pigment of the present invention is a pigment that exhibits an elegant shine called pearl luster due to multiple reflection of light, and is a natural pearl luster pigment collected from fish scales, and is a synthesis of basic carbonate accent, bismuth oxychloride, mica titanium and the like. Pearlescent pigments can be mentioned. It is known that the pigment is made of a transparent substance having a large refractive index, and the pigment particles are in the form of flakes, and the flakes are arranged in layers when colored. The pearl pigment used in the present invention is required to have a 60-degree specular glossiness of the recorded matter of 40 or more.

The coloring material (coloring agent) that can be used for the coloring layer of the present invention is red.
It is a dye / pigment of any hue such as green / blue / yellow / red / indigo, but when a coloring layer containing a coloring material is provided on a mirror gloss layer containing a pearl pigment, the coloring material has a specular gloss. The dye / pigment must be highly transparent so as not to impair the specular reflection of the layer.

The recorded matter of the present invention can be obtained by various printings such as ordinary gravure, flexo, offset and screen printing, or by printing with a thermal transfer printer. The method using a thermal transfer printer is the most simple and preferable.

The thermal transfer material used in such a thermal transfer printer is provided with a thermal transfer ink layer containing a pearl pigment and a thermal transfer ink layer containing a coloring material sequentially on a substrate, or a highly transparent coloring material is dispersed or dissolved in a binder. A heat-sensitive transfer material or the like in which a heat-sensitive transfer ink layer formed by heat treatment and a heat-sensitive transfer ink layer containing a pearl pigment are sequentially provided on a substrate. As a material used for the ink, a conventionally known material can be used. For example, base films used as base materials include polyester, polyamide, and polyolefin films with excellent heat resistance and mechanical strength, and vehicles used for hot-melt inks include plants, animals, minerals, and petroleum. Natural waxes, synthetic waxes, fatty acids, and thermoplastic resins having a softening point of 200 ° C. or less. If necessary, additives such as a softener such as oil, a surfactant, and an ultraviolet absorber can be used in the hot-melt ink.

Hereinafter, the present invention will be described in detail with reference to examples. All parts in the examples represent "parts by weight".

Example 1 A hot melt ink B and a pearl pigment-containing hot melt ink C obtained by sufficiently dispersing a coating solution having the following composition at room temperature with an attritor were coated on a 6 μm polyethylene terephthalate film by gravure coating. The heat-sensitive transfer material was obtained by sequentially laminating the coating so that the coating thickness after drying was 1.5 μm for ink B and 2.5 μm for ink C.

[Ink B]

Pink dye 2 parts (Oriental Chemical Industry Co., Ltd. oil pink OP) Alicyclic saturated hydrocarbon resin 9 parts (Arakawa Chemical Industry Co., Ltd. Alcon P-100) Carnauba wax 9 parts Isopropyl alcohol 15 parts Toluene 65 parts [ Ink C] Pearl pigment 15 parts (Merck Japan K.K. Iriodin 217) Alicyclic saturated hydrocarbon resin 7 parts (Arakawa Chemical Industries, Ltd. Alcon P-100) Carnauba wax 8 parts Isopropyl alcohol 10 parts Toluene 60 Using the obtained thermal transfer material, a Beck smoothness of 100 was obtained using a barcode label printer (B-30-S1 manufactured by Tokyo Electric Co., Ltd.).
A barcode was printed on the recording paper for a second to obtain a pink pearlescent record. The barcode record was used as a light source for 632.8 n
bar code verifier (SYMBOL T
When read with LASER CHECK LC2811 manufactured by ECHNOLOGIES, Inc., the information corresponding to the code could be read.

Example 2 A hot-melt ink C containing a pearl pigment and a hot-melt colored ink E obtained by sufficiently dispersing a coating liquid having the following composition at room temperature using an attritor were mixed with 6 μm polyethylene terephthalate as in Example 1. By gravure coating method on the film, the coating thickness when dried is ink C2.5μm, ink E2.0μ
m to obtain a thermal transfer material.

[Ink E]

Red pigment material 10 parts (Toyo Ink Manufacturing Co., Ltd., Lionol Red B) Alicyclic saturated hydrocarbon resin 5 parts (Arakawa Chemical Industries, Ltd., Alcon P-100) Carnauba wax 5 parts Isopropyl alcohol 15 parts Toluene 65 Using the obtained thermal transfer material, a Beck smoothness of 100 was obtained using a barcode label printer (B-30-S1 manufactured by Tokyo Electric Co., Ltd.).
A barcode was printed on the recording paper for a second to obtain a red pearly glossy recorded material. The bar code record was used as a light source at 632.8 nm H
Bar code verifier using e-Ne laser (SYMBOL TECHN
When read with LASER-CHECK LC2811 manufactured by OLOGIES, Inc., the information corresponding to the code could be read.

Comparative Example 1 A 6 μm-thick polyethylene terephthalate was prepared by mixing a hot-melt colored ink B similar to that in Example 1 and a hot-melt ink F containing a pearl pigment obtained by sufficiently dispersing a coating liquid having the following composition at room temperature with an attritor. The film thickness when dried by gravure coating method on the film, ink B1.5μm, ink F2.5μ
m to obtain a thermal transfer material.

[Ink F]

Pearl pigment 15 parts (Iriodin 225 manufactured by Merck Japan KK) 7 parts of alicyclic saturated hydrocarbon resin (Alcon P-100 manufactured by Arakawa Chemical Industry Co., Ltd.) 8 parts of carnauba wax 10 parts of isopropyl alcohol 60 parts of toluene Beck smoothness of 100 with a bar code label printer (B-30-S1 manufactured by Tokyo Electric Co., Ltd.)
A barcode was printed on the recording paper for a second to obtain a pink pearlescent record. The barcode record was used as a light source for 632.8 n
bar code verifier (SYMBOL T
When read with LASER CHECK LC2811 manufactured by ECHNOLOGIES, Inc., the information corresponding to the code could not be read.

Using a gloss meter (GM-3M, manufactured by Murakami Color Research Laboratory Co., Ltd.) of the recorded materials of Examples 1 and 2 and Comparative Example 1, a 60-degree specular gloss of a specular gloss layer having a shape corresponding to the information medium and information. The following table summarizes the measurement results and whether or not they can be read with a barcode reader.

From the above results, in order to read with a normal barcode reader, it is necessary to use a pearl pigment that makes the 60 ° specular gloss of the recorded matter 40 or more.

(Effect of the Invention) By using the thermal transfer material of the present invention, it is possible to record a pattern having a pearly luster of any hue including not only a dark color / cold color system but also a light color / warm color system and a shape according to information. Therefore, information as a color can be added in addition to the information as the same shape. Specifically, since colors can be easily identified visually, information such as season, production line, person in charge, district, size, and manufacturer can be added as colors, which is convenient for sorting these. In addition, design color restrictions are reduced.

Furthermore, the pattern having a shape corresponding to the information can be read by any bar code reader using light of a specific wavelength in the visible to near infrared region as a light source, and an optical reading device such as an OCR, regardless of a reading wavelength. Therefore, the black pattern can be identified in a wide range of wavelengths in the same manner as the black pattern has conventionally been used as the one that can be identified in a wide range of wavelengths.

Claims (4)

(57) [Claims] 1. A method according to claim 1, wherein a coloring layer and a mirror gloss layer containing a pearl pigment are sequentially laminated on at least one surface of an information medium having no or little mirror gloss and patterned into a shape corresponding to information. A collation record, wherein a difference in specular reflectance of an information medium is optically read. 2. A specular gloss layer containing a pearl pigment and a transparent coloring layer containing a highly transparent coloring material are sequentially laminated on at least one surface of an information medium having no or little specular gloss to form a shape according to information. A collation record, which is formed by patterning, and optically reads the difference between the specular reflectance of the specular gloss layer and the specular reflectance of the information medium. 3. The collation record according to claim 1, wherein the thermal transfer material is patterned by a thermal head into a shape corresponding to information. 4. The collation record according to claim 1, wherein the shape corresponding to the information is a barcode.