Laser-Printed Barcode Label with Color Ink Layer
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Solution Overview
Problem
Existing barcode and image printing methods are prone to erasure due to friction or chemical exposure, limiting their durability and reliability for indicating product information.
Innovation Solution
A label structure comprising a transparent sheet with a loss layer and a dark sheet, where a color ink layer is applied on top, allowing for laser projection to create a visible image without erasure, using materials like PET, OPP, or PP for the transparent sheet and silver ink for the loss layer, and a dark sheet with a pre-determined color that remains visible through the projected area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional printing methods (printout printing, thermal transfer printing, thermosensitive printing, laser printing) are used to create barcodes and images, then the printing process is simple and can be easily implemented, but the printed content is easily erased by friction or chemical materials
Solution Approach 1:
The label is divided into multiple functional layers: a transparent sheet with a loss layer (silver ink) on the front surface, a dark sheet with pre-determined color on the back surface, and a color ink layer. This segmentation allows each layer to perform its specific function - the loss layer is removed by laser to reveal the dark sheet's color, creating durable barcodes and images that resist friction and chemical damage.
Solution Approach 2:
The invention uses composite material structure combining transparent sheet material (PET, OPP, or PP), silver ink for the loss layer, dark sheet material with pre-determined color, and color ink. This composite structure provides both the laser-response capability of silver ink and the durability of the dark sheet material, resolving the contradiction between ease of manufacture and printing durability.
2Reliability
If a loss layer made with silver ink is used to create non-erasable barcodes and images by laser projection, then the printing durability is improved and becomes resistant to friction and chemical materials, but the barcode and image labels are limited to silver color only
Solution Approach 1:
The invention adds a color dimension by placing a color ink layer and a dark sheet with pre-determined color behind the transparent sheet. When the silver loss layer is removed by laser, the color from the dark sheet or color ink layer becomes visible, allowing barcodes and images to be created in various colors while maintaining the durability provided by the loss layer structure.
Solution Approach 2:
The transparent sheet acts as an intermediary between the silver loss layer and the color-providing layers (dark sheet and color ink layer). It allows the laser to effectively remove the loss layer while protecting the color layers, and enables the color to be revealed in a controlled manner, thus achieving both durability and color versatility.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables durable, long-lasting barcode and image labels in various colors, protecting important data like expiration dates from alteration and ensuring product reliability by resisting friction and chemical damage.
Implementation Method 1
the loss layer is configured to be lost by laser beam projection when a laser beam is projected to a surface of the loss later to form a projected area
Data Source
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AI summary
The present invention relates method for making the barcode, the characters and the images for common purpose of the barcode, the characters and the images and particularly making label with a pre-determined color among various colors and simultaneously not erasing due to friction or chemical material etc. The present invention for an image label for common purpose of the barcode, the characters and the images, comprising: A barcode appearing printed color images in responding that a laser beam is projecting to a surface of the barcode; A loss layer that an image is formed; A loss sheet consisting of a transparent sheet that is placed on the loss layer; and A dark sheet that is attached at the lower part of the loss sheet, is characterized in including a color ink layer that a pre-determined color among various colors is expressed and is attaching the upper part of said loss layer. Therefore, the present invention has the effect that the color ink layer which the pre-determined color among the various colors is expressed is furnished at the upper part of the transparent sheet. In that way, the label of the color which the consumer or the seller demands can be made. The various desires of the consumer about the label design or the seller is satisfied. And the high quality label is made come true.