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Printing Technology of Barcode Printer

Release Time:2020-07-21

Thermal printing and thermal transfer printing is the printing technology of bar code printers. Each method uses a thermal print head to heat the printing surface. Thermal transfer printing is to print durable and long-lasting patterns on a variety of materials by heating the ribbon. Thermal printing does not use ribbon, but prints the pattern directly on the label material.

　　

 

Thermal Printing

Thermal printing and thermal transfer printing are the best barcode printing technologies because they can be easily applied to a variety of adhesive label materials and print accurate and high quality patterns with excellent edge definition. Each technology can produce one-dimensional and two-dimensional bar code symbols with patterns and text fonts at the same printing resolution and speed.

Thermal printing uses chemically treated thermal media that turns black when the media passes under the thermal print head. Thermal printers do not use ink, toner, or ribbon. The simple design makes the thermal printer durable and easy to use. Because there is no ribbon, thermal printers have lower operating costs than thermal transfer printers.

Patterns on heat-sensitive media will fade over time. If the label is over-exposed to heat, light, or other catalysts, the material will darken, making the barcode unreadable. The readability of thermal labels varies greatly with the conditions of use, but this technology provides sufficient service life for rated labeling and many other common barcode printing applications. For example, direct thermal labels can still be easily scanned and read after six months of storage in distribution centers.

　　

 

thermal transfer printing

In thermal transfer printing, a thermal print head heats the ribbon and the ink melts on the label material to form a pattern. The ribbon material is absorbed by the medium and the pattern forms part of the label. This technology provides pattern quality and durability unmatched by other on-demand printing technologies.

Thermal transfer printers accept a wider variety of media than thermal printers, including paper, polyester and polypropylene materials. Thermal transfer printers can produce durable rated labels, UL/CSA labels, tags and bills, as well as wristbands, permanent asset tags, shelf tags and other logos.

Thermal transfer printers may use wax or resin ribbons.

Wax is the most common, inexpensive option for many labeling applications.

Resin ribbon can improve heat resistance and chemical corrosion resistance, and is mostly used for synthetic label materials.

The resin modified wax ribbon combines the advantages of both and performs well on many label materials. To ensure print performance and durability, specific label materials and ribbons must be carefully selected.

The choice of the ideal ribbon depends on the material used for the label, the printer and the environment. By selecting the correct combination of media ribbons, the user is able to produce high quality labels that remain readable throughout production, logistics and storage.

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