Bar code, character, label for image, and method for forming bar code, character, image

摘要

[PROBLEMS] To make it possible to produce a label expressing a preset color among various colors, and to prevent bar codes, characters, images, etc. expressed on the label from being erased even on friction or chemical substances. The present invention provides a barcode, a character, a label for an image, and a method for forming a barcode, a character, and an image. The bar code, character, and image label of the present invention disappear when a laser beam is projected, and the color expressed in the lower part can be seen, thereby forming a predetermined bar code, character, and image. And a disappearing sheet composed of a transparent sheet provided on the upper side of the disappearing layer, a dark sheet attached to the lower side of the disappearing sheet, and an upper side of the disappearing sheet. A forming method comprising: a color ink layer expressing a color, and forming a lost sheet forming step, a dark sheet attaching step, a laser projection step, and a color ink layer attaching step to form these layers It is characterized by. [Selection] Figure 2