What is the material composition of the round color copperplate label paper?

The material composition of circular color copperplate label paper mainly includes the following aspects:

1. Face material

Coated paper: This is the main surface material of the round color copperplate label paper. Coated paper is a kind of high-grade printing paper, the surface is coated with white paint, so that it has good printing effect and color brightness. Coated paper is widely used in the printing industry, especially for label production requiring high-quality printing results.

2. Surface coating

The surface coating is used to change the surface characteristics of the surface material, such as improving the surface tension, changing the color, increasing the protective layer, etc., so that it can better accept the ink and easy to print, while preventing dirt, increasing the ink adhesion and preventing the purpose of printing pictures and graphics from falling off. The surface coating may include a variety of materials such as transparent polyester, translucent polyester, transparent oriented polypropylene, transparent PVC, luminous white PVC, matt white PVC, synthetic paper, etc.

3. Adhesive

The adhesive acts as a connection between the surface material and the base paper in the label paper, and also ensures that the label has sufficient adhesion force after being pasted to the object. There are many types of adhesives, and different formulas can be selected according to different surfaces, substrates and occasions of use. According to its bonding characteristics, it can be divided into two kinds: permanent and removable. According to its chemical composition is divided into rubber base and acrylic base two; According to the coating method, it can be divided into hot melt type, solvent type and emulsion type. According to the scope of application, it is divided into general type, special adhesive type, medical type, low temperature type and high temperature type.

4. Backing paper

The backing paper, also known as release paper, is coated with a silicone oil layer on the surface to make it non-sticky with low surface energy and to isolate the adhesive, so as to facilitate the stripping of the label from the backing paper. Commonly used base paper materials are white, blue, yellow glassine paper or onion paper, kraft paper, polyester (PET), coated paper, polyethylene (PE) and so on.

5. Other ingredients

In the production process, other auxiliary materials such as gloss agent, hardener, plasticizer, dispersant, wetting agent, opalescent agent, fluorescent whitening agent, toner, etc. may also be added to improve the overall performance of the label paper.

In summary, the material composition of the circular color copperplate label paper is a comprehensive system, including the face material, surface coating, adhesive, backing paper and other accessories and other components. These ingredients work together to ensure the excellent performance of the label paper in terms of printing effect, adhesive performance, and ease of use.