How to make green cosmetic packaging?

How to make green cosmetic packaging?

Introduction to the process principle and production process of color masterbatch

Where did the product packaging with different colors come from? The process of color matching is inseparable from the color masterbatch.

Definition of color masterbatch: Masterbatch, also known as color species, is an aggregate made by uniformly attaching super-constant pigments or dyes to resin.

Pink skincare packaging-Several advantages of using color masterbatch: 1. It is beneficial to maintain the chemical stability of the pigment and the stability of the color; 2. Make the pigment better disperse in the plastic; 3. Protect the health of the operator 4. The process is simple and the color is easy to change; 5. The environment is clean and the utensils are not stained; 6. It saves time and raw materials.

Color masterbatch is used for the coloring of polyethylene, polypropylene, polystyrene, ABS, nylon, PC, PMMA, PET, and other resins, and is also widely used in daily chemical packaging, cosmetic packaging, food packaging, pharmaceutical packaging, household appliances, agricultural Films, auto parts, health care equipment, fibers, clothing, wires and cables, and other fields.

White and gold cosmetic packaging-Masterbatch color matching process principle

The masterbatch color matching process mainly has the following rules.

1. Complementary color law

The color ring method is often used for the mixing of certain colors, which can be described in the form of rings.

Each fan-shaped block represents a color light, and there is another corresponding fan-shaped color light at the opposite corner. This pair of color lights are called complementary color.

If a color is mixed with its complement in the proper proportions, it produces gray; if the two are mixed in other proportions, it produces a desaturated color with approximately larger proportions of the color components.

2. Intermediate Chromaticity

The mixing of any two non-complementary colors produces an intermediate color, the hue of which is determined by the relative amount of the two colors, and the saturation of which is determined by the distance of the two in hue order.

3. The Law of Substitution

Similar colors are similar after mixing. If color A=color B, color C=color D, then: color A+color C=color B+color D. Therefore, the pursuit of the same or similar tones is a common problem in the process of color matching. The original sample and the replica will appear in metamerism or approximate metamerism, and it is difficult to achieve the same spectral reflectance curve.

4. Mixing of color pigments (subtractive mixing)

People often refer to red, yellow, and blue as the three primary colors. The two primary colors are combined to form secondary colors, and there are also three secondary colors; the colors produced by mixing the two secondary colors are called complex colors.

On the basis of the primary color or secondary color, by diluting it with white, you can get light pink, light blue, lake blue, and other shades of different colors; adding different amounts of black, you can get brown, dark brown, black green and other bright colors. different colors.

Therefore, white and black are often called vanishing colors.