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

The base paper types of small roll thermal label paper are diverse, which can be classified from multiple perspectives such as material, transmittance, and process. Here are some common types of backing paper:

First, classification by material

1. Paper base paper:

White check, blue check, yellow check backing paper: These are common thermal paper self-adhesive backing paper, different colors but similar functions, mainly used for isolating adhesives to ensure that the face paper can be easily removed from the backing paper.

Glasin backing paper (also known as glass backing paper) : a super matte paper translucent backing paper, specially designed for high-speed web printing die-cutting and automatic labeling, die-cutting processing performance is excellent, with good thickness and light transmission.

Kraft paper backing: A backing paper coated with plastic followed by silicon, usually opaque, with high strength and stability.

2. Film backing paper:

Plastic film backing paper: such as BOPP (biaxially stretched polypropylene) or PET (polyethylene terephthalate) film, these backing paper usually has excellent dimensional stability and strength, and is transparent backing paper.

Second, classification by transmittance

1.Transparent backing paper: such as BOPP or PET plastic film backing paper, good light transmittance, suitable for occasions requiring back light transmittance.

2.Translucent backing paper: such as Grassine backing paper, both a certain degree of light transmission, but also to provide a certain degree of isolation and protection.

3.Opaque backing paper: such as kraft paper, white Glassine paper (after special treatment), etc., opaque, suitable for occasions where the content of the back needs to be completely blocked.

Third, according to the process classification

1.Overpressure bottom paper: made by overpressure process, the weight per square meter is generally between 60-80 grams, according to the different pulp formula can be divided into SCK bottom paper and Glasin bottom paper.

2.Machined matte backing paper: After machine calendered treatment, the surface is matte, opaque, and the weight per square meter is generally between 80-110 grams.

In addition, there are some special types of backing paper, such as surface coated plastic backing paper, waterproof backing paper, etc., which usually have special properties or uses to meet the needs of different fields.

In general, the base paper types of small roll thermal label paper are diverse, and the selection needs to be determined according to the specific application scenarios and needs. For example, when labeling with automatic labeling machine, transparent backing paper or Glasin backing paper is usually selected; In cases where high strength and stability are required, plastic film backing paper may be selected.