Today, fax paper is a very popular consumable that is actively used in offices. Every day, at modern enterprises using the fax send and receive hundreds of different certificates, invoices, contracts. Since many documents are of particular importance, fax paper must be of high quality and stored in appropriate conditions.
When choosing products, you should be guided by the criteria for the quality of paper for office devices. Many people mistakenly believe that any sheets are suitable for a facsimile machine that works on plain paper. It turns out that poor-quality materials not only reduce the productivity of equipment, but also with constant use can lead to failure of office equipment.
When choosing products, it is necessary to take into account the parameters of smoothness and density, as well as stiffness and moisture content. If fax paper has a reduced moisture content, it will begin to absorb from the environment when unpacked. As a result, the sheets will become wavy, and the performance of the equipment will decrease.
Fax paper is produced in two types: thermal and plain (for ink).
The first type has a special thermal coating that responds to thermal energy. Unlike conventional, thermal paper for printer or fax has its own characteristics that should be considered when buying.
The most important characteristic of this material is the dynamic sensitivity or reaction rate of color formation when exposed to a certain amount of thermal energy. This ability is determined in units of optical density. In order to keep the readability of information for a long time, it is required to choose paper with an optical density of at least 1.05 D.
It is necessary to pay attention to the characteristic of the static sensitivity of thermal paper, which determines the maximum amount of thermal energy that is safe for sheets when printing.
The rate of heating of the sheets depends on the smoothness index. With a higher value of this parameter, the printed image is of better quality, and the thermal head of the fax can work longer.
The main criteria for choosing plain fax paper are the density and thickness of the sheets, the stiffness and degree of curl. The clarity of printed images depends on the density and thickness of the material. Rigidity and degree of twisting affect the shape of the material after printing. With a lower value of the second parameter and greater rigidity, the sheets are more even.
Like office paper (colored), fax is characterized by whiteness. Quality sheets should have a high level of this indicator, since print quality will depend on this.
Fax materials are delivered in rolls that are 21 centimeters wide. Winding length may vary (depending on manufacturer). The standard value for this parameter is about 20 meters.