What are the types of backing paper for the small roll of thermal label paper?

There are many types of backing paper for small rolls of thermal label paper, and the choice of these backing papers usually depends on the specific application needs, the printing method and the material to be affixed. The following are some common types of small roll thermal label paper and their characteristics:

First, classification by material

1.Paper base paper:

Characteristics: Paper base paper is the most common type of base paper, with good degradability and environmental protection.

Type: including Glasin bottom paper (also known as glass bottom paper), white thick bottom paper, kraft paper bottom paper, etc. Among them, Glassine paper (Glassine) because of its good thickness and light transmission, often used in high-speed web printing die cutting and automatic labeling. White heavy backing paper has excellent flatness and is suitable for flat sheet applications.

2.Film backing paper:

Features: Film type backing paper is usually made of plastic film, with excellent dimensional stability and strength.

Type: The common film base paper is BOPP (bidirectional tensile polypropylene) base paper and PET (polyethylene terephthalate) base paper. These backing papers are usually transparent or translucent and are suitable for applications where high transparency is required.

Second, classification by transmittance

1.Transparent backing paper: such as BOPP and PET and other film backing paper, with good light transmittance, suitable for the need to observe the surface of the label.

2.Translucent backing paper: such as some special formula of Glaxin backing paper, light transmission between transparent and opaque.

3.Opaque base paper: such as white thick base paper, kraft paper base paper and other paper base paper, as well as some specially treated film base paper.

Third, according to the process classification

1.Overpressure backing paper: made by the overpressure process, with a specific density and strength, suitable for high-speed printing and die cutting.

2.Machined matte backing paper: After mechanical calendering, the surface presents a matte effect, suitable for applications requiring low reflectivity.

Fourth, by color classification

The color of the backing paper is also an important factor in distinguishing the different types. Common colors are white, yellow, blue and so on. Different colors of the backing paper are visually different, and may also affect the printing effect and paste performance.

Fifth, special types

In addition to the above common types, there are some special types of base paper, such as surface coated plastic base paper (that is, the surface of the base paper is coated with a layer of plastic film to increase strength and water resistance).

In summary, there are many types of backing paper for small roll thermal label paper, and the selection needs to be comprehensively considered according to the specific application needs. When selecting the base paper, in addition to considering its material, transmittance, process and color and other factors, it is also necessary to pay attention to the matching of the base paper and the surface material, the compatibility of the printing equipment and the adaptability of the use environment.