How to distinguish color paste, color essence, color masterbatch and pigment

How to distinguish color paste, color essence, color masterbatch and pigment

Color paste, as the name suggests, is a kind of concentrated pigment paste, which is developed by using different pigments through strict processing technology through surface treatment and surface wrapping of pigments. According to the different solvents used in the color paste, the color paste is divided into water-based color paste, oil-based color paste, water-oil general color paste, etc.; according to the different uses of the color paste, it is divided into paint color paste, tape color paste, paper-making color paste, Textile color paste, mechanical color paste, toy color paste, latex product color paste, etc.; according to the different tools that use color paste, people simply divide color paste into factory color paste and machine color paste, etc. Color pastes cooperate in nature to dress up the whole world, ranging from clothing, daily necessities, toys, etc., to bridges, housing constructions, etc., all displaying colorful colors.

With the rapid development of construction and industry, including hotels, commerce, landscape, transportation and other fields that are rarely designed in the color paste field have entered the development scope of the color paste market, and are moving towards integration and energy saving. The development trend, of course, is mainly reflected in the rapid rise of color paste manufacturers, driving the entire color paste industry to develop towards high efficiency and low carbon.

Water-based color paste is used for coloring, and its application fields are very broad, including coatings, leather, printing, papermaking, latex, textiles and other industries. The main service target is the coating industry.

Now the industry is carrying out “oil-to-water” water-based color paste will gradually replace the original oil-based color paste in various industries. Oil-based color paste will become a past tense in the future. Environmental protection development is the transformation of the coatings industry and the direction of future expansion.

Color essence

Metal complex dyes are also called transparent dyes, commonly known as color concentrates or toners. They are dyes that can be dissolved in solvents. They have very good compatibility with various resins, so their applications are very wide. Due to the particularity of the complex structure of metal complex dyes, which are different from general organic pigments and traditional azo dyes, they have higher gloss and transparency, better weather resistance and stronger fastness ; Compared with inorganic pigments, metal complex dyes have the characteristics of easy dispersion, easy penetration, easy coloring, bright colors and good transparency effects. It is mainly used in the following industries:

1) Metal complex dyes for solvent-based inks;

2) Metal complex dyes used in printing inks for aluminum foil;

3) Metal complex dyes for printing inks on other paper or metal surfaces (such as screen printing);

4) Metal complex dyes for wood coatings;

5) Metal complex dyes for aluminum foil coloring (such as bronzing materials);

6) Metal complex dyes for metal transparent coloring (such as low-temperature baking paint for interior decoration);

7) Metal complex dyes for special coatings;

8) Metal complex dyes for ballpoint pens and various stationery inks;

9) Metal complex dyes for surface dyeing of plastic products (such as vacuum plating, etc.);

10) Metal complex dyes for surface coloring of natural and synthetic leather;

11) Metal complex dyes for shoe polish dyeing.

12) Metal complex dyes for coloring lighting products.

Solvent-based color essence is a dye that can be dissolved in organic solvents such as aromatics, esters, styrene, and methyl methacrylate (almost insoluble in water).

Masterbatch

The full name of Color Masterbatch (ColorMasterBatch) is called color masterbatch, also called color species, it is a new type of special colorant for polymer materials, also known as pigment preparation (PigmentPreparation). Color masterbatch is mainly used in plasticsuperior. The color masterbatch is composed of three basic elements: pigment or dye, carrier and additive. It is an aggregate made by uniformly loading super-normal pigments in the resin. It can be called pigment concentration (Pigment Concentration), so its coloring Power is higher than the pigment itself. A small amount of color masterbatch is mixed with uncolored resin during processing to achieve the designed pigment concentration of colored resin or product

Pigment

The food coloring we most often hear is a kind of pigment, that is, a food additive that can be eaten in moderation and can change the original color of food to a certain extent. Food coloring is also the same as food flavoring, which can be divided into two types: natural and synthetic.

The color of food is an important factor in the sensory quality of food. People often use a food additive-food coloring when making food. There are two types of food coloring used: natural food coloring and synthetic food coloring. Before the British invented the first synthetic food coloring, aniline violet, in 1850, people used natural pigments for coloring. As early as the 10th century AD, the ancients began to use plant-based natural pigments to color food. The earliest use of pigments was the Alixa people in Great Britain. At that time, they used madder plant pigments to make rose-purple candies. Later, the Toltecs and Amantecs in America successively extracted carmine from the female cochineal for food coloring. Since ancient times, my country has had the habit of making wine, sauce meat, and red sausage with red yeast rice. Yellow rice flowers are used in the southwest area, and glutinous rice is dyed with black rice leaves in the south of the Yangtze River. Food coloring and food additives for improving food color. There are natural and synthetic points. Natural food colorings are pigments directly extracted from animal and plant tissues, which are generally harmless to the human body, such as red yeast rice, chlorophyll, curcumin, carotene, amaranth and sugar color, etc., are some of them. Synthetic food colorings are made from aniline dyes separated from coal tar, so they are also called coal tar pigments or aniline pigments, such as synthetic amaranth, carmine and lemon yellow. These synthetic pigments are easy to induce poisoning, diarrhea and even cancer, and are harmful to the human body, so they should not be used more or should not be used as much as possible.

Natural pigments are mostly produced from naturally colored plants. These colored plant components, such as skins, shells, leaves, residues, etc., are often used for comprehensive utilization. There are also those produced by animals, such as lac pigment (cochineal pigment), and those produced by microorganisms, such as monascus pigment. The preparation method is not only the caramel color is obtained by heating and coking sugar substances at high temperature, but also extracted with water or related solutions, further refined, concentrated and dried. It is also possible to directly apply the color-forming plant components after drying and crushing. It is also prepared by biotechnology methods such as tissue culture. There is a method of artificial chemical synthesis to prepare nature-identical colours, such as β-carotene, which are completely identical in chemical structure to natural ones, and their safety is stronger than that of general synthetic pigments.

Natural pigments such as microbial pigments, plant pigments, and mineral pigments extracted from animal and plant tissues and minerals, among which those that can be eaten are called natural food pigments. Widely used in medicine and food, shellac pigment, safflower yellow pigment, beet red, capsanthin, red yeast rice, turmeric, β-carotene, copper sodium salt of chlorophyllin, caramel, etc. are allowed to be used. When choosing food coloring, its color, taste and smell should try to be in harmony with natural objects or habits.