How does the quality of raw materials affect the performance of colored copperplate label paper?

The quality of raw materials has a significant impact on the performance of color copperplate label paper, mainly reflected in the following aspects:

First, the quality of copper plate base paper

1. Paper properties:

Fiber distribution and thickness: The fiber distribution uniformity and thickness consistency of copperplate base paper directly affect the strength and printing effect of label paper. Uneven distribution of fibers may lead to problems such as wrinkling and curling in the printing process, and inconsistent thickness will affect the uniformity of the printing ink layer.

Scalability and stability: The scalability of the base paper is small, which helps to maintain the dimensional stability of the label paper during processing and use, and avoid dimensional changes caused by temperature and humidity changes, thus affecting the printing accuracy and aesthetics.

Water resistance and strength: Good water resistance and high strength make the label paper not easy to deform in a humid environment, and can withstand certain physical stresses, such as pulling during handling and pasting.

2. Surface properties:

Smoothness: The surface smoothness of the base paper directly affects the adhesion of the printing ink and the clarity of the print. Smooth paper can better reproduce the details of the printed pattern, so that the label paper looks more beautiful.

Whiteness and gloss: Whiteness is one of the important indicators of the visual effect of the label paper, and high whiteness can improve the overall texture of the label paper. The gloss is closely related to the coating process and the quality of the paint, and the label paper with moderate gloss can increase the attractiveness of the product.

Second, the quality of paint and pigment

1. Paint composition:

The coating is composed of white pigments, adhesives and auxiliary additives, and its quality directly affects the printing effect and durability of the label paper. High quality coating can ensure that the surface coating of the label paper is uniform, strong adhesion, and not easy to fall off.

The choice and proportion of pigments is also one of the key factors. Different pigments have different optical properties and chemical stability, and reasonable selection of pigment ratio can optimize the color performance and durability of the label paper.

2. Coating properties:

The ink absorption and drying speed of the coating have important effects on the printing quality. The coating with good ink absorption can make the ink permeate and dry quickly, and reduce the phenomenon of blur and through printing. A coating with a moderate drying speed ensures that the print maintains a stable color and gloss during subsequent processing and use.

Third, the quality of ink

1. Ink performance:

The viscosity, fluidity, drying speed and other properties of ink directly affect the color saturation, clarity and drying effect of printed matter. High quality ink can ensure that the printing pattern is bright and well layered, and it is not easy to fall off or change color after drying.

The wear resistance, water resistance and light resistance of the ink are also one of the important indicators. The quality of these properties is directly related to the durability and stability of the label paper during use.

Fourth, the quality impact of laminating glue (such as use)

1. Coating effect:

The quality of the film coating directly affects the uniformity, adhesion and durability of the film coating. The high quality laminating adhesive can ensure that the laminating layer is tightly bound to the label paper, which is not easy to fall off or foam, and improve the waterproof, anti-fouling and wear resistance of the label paper.

In summary, the quality of raw materials has a full impact on the performance of color copperplate label paper. Therefore, the quality of raw materials should be strictly controlled in the production process to ensure that each process is in the best state, so as to produce high-quality, high-performance color copperplate label paper.