Thermal Synthetic Paper and Thermal Paper label

In the world of printing and labeling, two types of paper have gained prominence for their unique properties: thermal synthetic paper and thermal paper. This article explores the characteristics and advantages of both, highlighting their applications in various industries.

I. Thermal Synthetic Paper

Thermal synthetic paper is a multi-layered material designed for durability and versatility. Its surface features a thick protective layer, while the bottom layer consists of a highly stretchable, tear-resistant adhesive backing. This composition enhances its water and oil resistance, as well as its durability, tear resistance, and tensile strength.

Key advantages of thermal synthetic paper include:

1. High tear and tensile strength
2. Water and oil resistance, corrosion resistance
3. Long storage life at room temperature with slow fading
4. Strong adhesive properties for label applications
5. Clear and smooth printing results
6. Ability to write on the surface with a pen immediately
7. Easy storage and reduced printing costs due to color stability

II. Thermal Paper

Thermal paper, also known as thermal fax paper or thermal recording paper, is a specially treated paper that changes color when exposed to heat. Its manufacturing process involves coating high-quality base paper with a “thermal coating” or heat-sensitive color-changing layer.

The thermal coating primarily consists of two components:

1. A colorless or “leuco” dye
2. A color developer

This type of thermal paper is also referred to as two-component chemical thermal recording paper.

Applications in Label Printing:

Thermal paper comes in two varieties: with and without a protective layer. The protective layer, applied on top of the thermal layer, serves multiple purposes:

• Protects the thermal layer
• Provides resistance to chemical corrosion
• Prevents label contamination (e.g., from hand sweat or blood stains in blood bank labels)
• Protects the print head

The thermal coating can be designed with different activation temperatures to meet various printing performance requirements.