What is the main raw material of circular color copperplate label paper?

The raw materials of circular color copper plate label paper mainly include the following aspects:

1. Coated paper

Definition and characteristics: Coated paper, also known as coated printing paper, powder paper, or copperplate printing paper, is a high-grade printing paper. It is made from base paper and coated with white paint. Coated paper paper is uniform and compact, high whiteness (more than 85%), the paper surface is smooth and high gloss, and the coating is firm and consistent, which is easy to obtain a beautiful and clear pattern and text after printing.

Main raw materials: The main raw materials of coated paper are copperplate base paper and paint. Copperplate base paper usually requires uniform thickness, small scalability, high strength, good water resistance, and the paper surface is not allowed to have spots, wrinkles, holes and other paper diseases. The coating is composed of high-quality white pigments (such as kaolin, talc, calcium carbonate, titanium dioxide, etc.), adhesives (such as polyvinyl alcohol, casein, etc.) and auxiliary additives.

Classification: According to the quality and use, coated paper can be divided into many types, such as ordinary coated paper, mirror coated paper, matte paper, light coated paper and so on. For round colored copperplate label paper, copperplate paper with a specific gloss and thickness may be selected to meet the aesthetic and durable needs of the label.

2. Ink

Definition and use: Ink is a colored viscous liquid used in the printing process to transfer images or text to the substrate. Ink plays a vital role in the printing process of round color copperplate label paper.

Characteristics requirements: For the circular color copper plate label paper, the ink needs to have good adhesion, wear resistance, light resistance, water resistance and chemical solvent resistance to ensure that the printed label can maintain a clear and bright color in a variety of environments.

Type selection: Depending on the specific requirements of the printing process and label, different types of inks may be selected for printing, such as solvent-based inks, water-based inks or UV-curable inks.

3. Other auxiliary materials

Coated adhesive: In some cases, coated paper labels may be selected in order to improve the wear resistance, water resistance and chemical solvent resistance of the label. At this time, it is necessary to use auxiliary materials such as laminating glue.

Backing paper and adhesive: For self-adhesive round color copper plate label paper, auxiliary materials such as bottom paper and adhesive need to be used. The backing paper supports and protects the label, while the adhesive is responsible for attaching the label to the target object.

In summary, the raw materials of circular color copperplate label paper mainly include coated paper, ink and other auxiliary materials such as laminating glue, backing paper and adhesives. The choice and quality of these materials will directly affect the quality and performance of the final label.