Thermal Fax Paper Factory, Thermal Fax Paper Exporter, Office Paper Manufactu

Posted by Allen Lee on March 11th, 2020

THERMAL PAPER

Overview
Model No.: 80MM
Place of Origin: China Manufacturers
Packing: WATERPROOF...
Specifications
1、Standard length 6000m

2、Standard packing: Waterproof wrapping packing. Also, accept customized packing.

3、Standard carton packing: Yellow carton or white carton. Also, accept customized carton packing.

4、Standard size:80X80mm, also accept customized size.

5、2 years warranty.

China THERMAL PAPER Factories Our company established in 2008. The factory is located in Foshan City, Guangdong Province. We mainly manufacture thermal paper jumbo roll and small roll, carbonless paper, label sticker. The automatic production lines guarantee fast shipping and also high quality. Our products sell to more than 50 countries and areas all over the world. We aim to be at the cutting edge of the paper industry.

Thermal paper is a specialty paper that changes color when subjected to heat, without the use of traditional ink. This effect is achieved by coating the paper with heat-sensitive dyes and developers during the manufacturing process. The exact composition of this chemical coating varies widely based on the coating facility but usually shares a few basic similarities.

Thermal Coating explained
The thermal paper begins its life as Base Paper. The base paper is an ordinary paper made from wood pulp. Thermal paper manufacturers directory

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The base paper is then coated with a layer of primer, called the Precoat. The precoat fills in the empty spaces between surface fibers, providing a smooth surface for the printing, and acts as a stabilizer that absorbs the activated dye mixture after printing. This also prevents the melted dye from sticking to the thermal print head.

Printing on the thermal coating activates colorless leuco dyes via heat.
When heated, the crystals of leuco dye melt and mix with the layer of the developer, turning the coating black.

The final (and most important) coating, the Thermal Coat, is made up of more than a dozen chemical compounds designed to produce an image when exposed to heat. These compounds include leuco dyes, developers, and sensitizers. Leuco dyes are the source of the black color produced by printing. When the coating is initially applied, the dye is made up of colorless crystals ground into a fine powder. The heat produced by a thermal print head melts the dye crystals wherever it touches, which then mix with an organic acid also present in the coating to create an opaque color. The organic acid is referred to as the developer. The most commonly used developers are Bisphenol-A (BPA) or Bisphenol-S (BPS). Lastly, the third set of compounds, called sensitizers, is added to the mixture. These sensitizers adjust the temperature at which the coating activates to form an image, as well as help the dyes and the developer to mix properly.