The difference between thermal paper and coated paper

Thermal paper and coated paper are two different types of paper, and there are clear differences between them. Here is a detailed comparison of the two types of paper:

First,Use

1.Thermal paper: mainly used in fax machines as a communication carrier for text and graphics, that is, as fax paper; Used as recording materials in medical and measuring systems, such as ECG drawings, thermal instrument recording paper, etc. It can also be applied to the printing paper of Internet terminals and commercial activities (such as making trademarks, signing, etc.), of which the amount of fax paper occupies the largest proportion.

2.Coated paper: mainly used for printing high-grade book covers and illustrations, color pictures, a variety of exquisite product advertising, samples, product packaging, trademarks and so on.

Second,Composition and production process

1.Thermal paper: Coating a layer of "thermal paint" (thermal color-changing layer) on high-quality base paper, its components include colorless dyes, color developing agents, sensitizers, fillers, adhesives and stabilizers. When the thermal paper is placed in an environment above 70 ° C, the thermal coating begins to change color, thus forming text and images.

2.Coated paper: also known as printing coated paper, it is coated with a layer of white paint on the surface of the base paper and processed by super calendered. It is divided into single-sided and double-sided two, paper and splitter and cloth two. The main raw materials are copperplate base paper and coating, the copperplate base paper requirements are higher, the need for uniform thickness, small scalability, high strength and good water resistance.

Third,Characteristics and effects

1.Thermal paper: The printing effect is clear, but because the handwriting on the thermal paper is unstable and easy to fade, the contents of the file are difficult to save for a long time. However, high quality thermal paper can be stored for 30 years or more.

2.Coated paper: the paper is uniform and compact, the whiteness is high (more than 85%), the paper is smooth and glossy, and the coating is firm and consistent, which is easy to obtain a beautiful and clear pattern and text after printing. In addition, coated paper also has good durability and is not easy to wear.

In summary, there are significant differences between thermal paper and coated paper in terms of use, composition and production process, as well as characteristics and effects. Thermal paper is mainly used for printing and fax scenes that require quick display of text and images, while coated paper is more suitable for printing high-quality book covers, advertisements and packaging products that require exquisite printing effects.