JPH0567253A - Bar code - Google Patents

Abstract

PURPOSE:To simplify the management of a product by using an image forming material whose color changes by means of the change of external environment such as a temperature, humidity and oxygen density. CONSTITUTION:A bar code label 1 consists of a label 3 and a bar code 5. The bar code 5 is formed in a prescribed pattern in which various information are incorporated by the combination of various thicknesses of lines 7. In such a case, ink using the material whose color changes and which can read information on the bar code 5 after the change of the color when it deviates from the range of external environment requested for the management of the product, namely, when it becomes environment where the product is degenerated, when prescribed time passes at high prescribed temperature deviating the prescribed temperature range requested from the product, for example, is used.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bar code attached to various products such as products, their packaging, or pallets on which products are placed.

[0002]

2. Description of the Related Art Bar codes are formed by combining bars of various thicknesses into a predetermined pattern, and are generally printed using black ink. Then, a dedicated reader is used to read various information contained in the barcode. On the other hand, some products are required to be managed under an external environment during storage or transportation, such as temperature, humidity, and oxygen concentration under predetermined conditions. In such a case, for example, during storage, product management is performed by operating an air conditioning facility such as a warehouse so as to provide an external environment required for the product.

[0003]

Therefore, in the prior art, only the operation of the air conditioning equipment is managed when the external environment of the product is managed. It was not possible to judge whether or not the external environment actually satisfied the predetermined condition required for the product, and the only way to judge this was to peel off the packaging and actually inspect the product itself. The present invention has been devised to solve such a problem by paying attention to a bar code attached to a product or a package thereof, and an object of the present invention is to store a product or transport it. It is an object to provide a bar code that can easily determine whether or not the external environment of a product satisfies a predetermined condition required for the product at times.

[0004]

To achieve the above object, the present invention provides a barcode formed by printing an image forming material in a predetermined pattern, wherein the image forming material includes temperature, humidity, oxygen concentration, etc. It is characterized in that the one whose color changes according to the change of the external environment is used.

According to this structure, since the color of the bar code changes due to a change in the external environment, it is not necessary to peel the packaging or the like to actually inspect the product itself, and to visually check the color of the bar code. Thus, it is possible to easily determine whether or not the external environment in which the product is placed is under a predetermined condition.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a bar code label 1, which comprises a label 3 and a bar code 5,
The bar code 5 is formed in a predetermined pattern containing various information by combining lines 7 having various thicknesses. FIG. 2 shows a printing machine 9 for a bar code 5. Immediately after being printed by the printing machine 9, the printed bar code label 1
Is attached to the wrapping paper 11A of the product 11 as shown in FIG. Then, when storing the product 11 to which the barcode label 1 is attached, the product 11 is stacked in such a direction that the barcode label 1 can be seen.

In this embodiment, the image forming material for printing the bar code 5 deviates from the external environment required for the management of the product, in other words, the product 11 is altered. If it becomes an environment, for example,
The ink is made of a material that changes the color after a predetermined time elapses at a high predetermined temperature that deviates from the predetermined temperature range required for the product 11 and that can read the information of the barcode 5 even after the color changes. Such materials include Co (AsO ₄ )
₂ (Pyr) ₂・ 10H ₂ O, (NH ₄ ) ₃ H ₆ [Fe (MnO ₄ ) ₆ ] ・ 7H ₂ O, CoSiF ₆ , Co
_{(C 6 H 5 O 7)} 2, [Co (NH 3) 5 Cl] Cl, [Ni (Pyr) 4] (CNS) 2, (NH 4) M
nP ₂ O ₇ , CoNH ₄ PO ₄・ H ₂ O, (NH ₄ ) ₃ VO ₃ , 3 (NH ₄ ) ₂ O ・ Al ₂ O ₃・ 12Mo
O ₃・ 19H ₂ O, 3 (NH ₄ ) ₂ O ・ Fe ₂ O ₃・ 12MoO ₃・ 19H ₂ O, 3 (NH ₄ ) ₂ O ・ Cr
O ₃・ 12MoO ₃・ 19H ₂ O, NiCl ₂・ 2C ₆ H ₁₂ N ₄・ 10H ₂ O, CoCl ₂・ C ₆ H ₁₂ N
₄・ 10H ₂ O, CoBr ₂・ C ₆ H ₁₂ N ₄・ 10H ₂ O, CoI ₂・ C ₆ H ₁₂ N ₄・ 10H ₂ O, C
oSO ₄ · C ₆ H ₁₂ N ₄ · 10H ₂ O etc.

Since this embodiment is constructed as described above,
The color of the bar code 5 changes when the product 11 deviates from the range of the external environment required. Therefore, when managing the products stacked in the warehouse, it is not necessary to remove the packaging and inspect the products themselves. Product 1 by looking at code 5
Since the quality of 1 can be judged, it is possible to easily and quickly manage a large number of products 11. In the embodiment, the case where the external environment required for the product 11 is temperature has been described, but the invention can be similarly applied to the management of other external environment such as humidity, oxygen concentration, or a combination thereof. .. The image forming material used in this case includes a dye-coloring type thermosensitive recording paper in which a leuco dye and bisphenol A are mixed.

Further, in the embodiment, the color of the bar code 5 is changed when the product 11 is deteriorated for a predetermined time at a high predetermined temperature deviating from the predetermined temperature range required for the product 11. Although the case has been described, for example, in the state where the deterioration of the product 11 is about to start, the color changes once, and further, after the deterioration of the product 11 starts, the color changes further so as to change stepwise. Then, it becomes possible to manage the product 11 more finely. The printing ink used in this case may be a mixture of two or more kinds of the above-mentioned materials, or a combination of the above materials, and a plurality of them may be overprinted.

[0010]

As is apparent from the above description, according to the present invention, the product management can be performed by visually observing the color of the bar code. Therefore, when the management is performed, the packaging is peeled off and the product itself is removed. There is no need to inspect, and product management can be performed easily.

[Brief description of drawings]

FIG. 1 is a front view of a barcode label.

FIG. 2 is a perspective view of a barcode printer.

FIG. 3 is a perspective view showing a storage state of products.

[Explanation of symbols]

 1 Bar code label 3 Label 5 Bar code 9 Bar code printer 11 products

Claims (1)

[Claims] 1. A bar code formed by printing an image forming material in a predetermined pattern, wherein the image forming material comprises:
A barcode whose color changes due to changes in the external environment such as temperature, humidity and oxygen concentration.