Common equipment and precision differences in the production of bar code original film

With the continuous development of commercial automation in our country, the quality of bar code label printing has received increasing attention from all parties. Because the quality of the original film is directly related to the quality of the barcode identification print, how to control the accuracy of the original film becomes the key to ensure the quality of the barcode label print.

The factors affecting the accuracy of the original bar code of the barcode are mainly equipment precision, detection methods, etc. Here to talk about... The common equipment and precision difference of making the original film of bar code:

At present, the mainstream devices for producing bar code originals are classified into vector laser devices and dot matrix laser devices.

Equipment Type Exposure Method Representation Model Equipment Accuracy Vector Laser Equipment Vector Movement Axicon auto ID ltd. Company Microplotter Laser Plotter +0.001mm
Lattice Laser Equipment Lattice Mode 3600 Line Laser Imagesetter + 0.01mm
Vector laser equipment adopts vector movement when exposing the film, and the edge of the strip can be kept straight.
The dot-matrix laser equipment adopts a dot-matrix line scanning method when exposing the film, and the dot arrangement density is proportional to the precision.

In addition, the Microplotter laser plotter has a simple optical structure and a direct light path, with little chance of error.

The laser image-setter employs complex optical and electrical components such as acousto-optic modulators, electro-acoustic transducers, prisms, beam expanders, beam splitters, etc., and the optical path undergoes complex processes such as refraction, reflection, and beam expansion, resulting in an opportunity for errors. increase.

From the above comparison, it can be seen that the vector laser device is more advantageous than the dot-matrix laser device in the production of the original bar code. Although the dot-matrix laser equipment can be adjusted by software to make the superposition of dots and dots (gap of the scanning line) very tight, strict control may also meet the accuracy requirement of the original barcode film, but compared with vector laser equipment in the production of barcode original film Still slightly inferior.

The laser image-setters widely used in the printing platemaking industry can be printed together with pre-designed microcomputers to complete the printing of packaging patterns, characters, and bar code labels. In contrast, the vector laser device has a single function, and the bar code symbols to be applied are subjected to pattern and text imposition. In the imposition process, the left and right blank areas of the bar code symbol should be reserved.

At present, the only institutions that use vector laser equipment to produce bar code original films are the China Article Numbering Center, Guangzhou East Barcode Training Center and China Article Numbering Center Zhejiang Subcenter (all using the Microplotter laser plotter). The rest are laser imagesetters.