SYCDA Company Limited, which was firstly founded in Shenzhen at the year of 2004,
has now grown into an expert in producing as well as selling of office paper.
During printing, under the action of the heat of the print head, the hot parts of the thermal paper change ink (the chemical reaction between the leuco dye and the developer produces color), and the non-heated parts do not change color, thus forming text or bar codes to achieve printing Purpose. It is worth noting that the colored handwriting on ordinary thermal paper is unstable and easy to fade, resulting in illegible document content, so thermal paper is not suitable for long-term storage. The good thermal printing paper can be stored for 5 years at room temperature and avoiding direct sunlight after printing. Now there are more long-lasting thermal papers that can be stored for 10 years. However, if the formula of the thermal coating is unreasonable, it may only It can be stored for several months.The structure of thermal printing paper
The protective coating is also critical to the storage time after printing. It can absorb a part of the light that causes the chemical reaction of the thermal coating, slow down the deterioration of the printing paper, and protect the thermal element of the printer from damage.
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