First, what is a masterbatch? CHENGDU YOUANCHENG COMPANY , https://www.youanchengshoes.com
Color masterbatch is also known as color masterbatch. Color Master Batch is a novel colorant for polymer materials, also known as Pigment Preparation. It consists of three basic elements: pigments or dyes, carriers and additives. It is an aggregate obtained by uniformly loading an excess amount of a pigment or dye into a resin. It can be called a pigment concentration (Pigment Concentration). The coloring power is higher than the pigment itself. Simply put, a masterbatch is an aggregate made by uniformly loading an ultra-constant amount of a pigment or dye into a resin.
Second, what are the basic ingredients of masterbatch?
The basic composition of masterbatch is:
1. Pigments or dyes Pigments are divided into organic pigments and inorganic pigments. Commonly used organic pigments are: phthalocyanine red, phthalocyanine blue, phthalocyanine green, lightfast red, macromolecule red, macromolecule yellow, permanent yellow, permanent Common inorganic pigments such as violet and azo red are: cadmium red, cadmium yellow, titanium dioxide, carbon black, red iron oxide, yellow iron oxide, etc. 2. The carrier is the matrix of the masterbatch. The special masterbatch generally chooses the same resin as the product resin. The compatibility of the two is best, but at the same time, the fluidity of the carrier must also be considered.
3. The dispersant promotes the pigment to disperse evenly and no longer condense. The dispersant's melting point should be lower than that of the resin. It has good compatibility with the resin and has a good affinity with the pigment. The most commonly used dispersants are: polyethylene low molecular waxes, stearates.
4. Additives such as flame retardant, brightening, antibacterial, antistatic, anti-oxidation and other varieties, unless the customer requests, under normal circumstances does not contain the above additives in the masterbatch.
Third, what kind of color masterbatch and grade?
Color Masterbatch classification methods are commonly used in the following categories: According to the carrier classification: such as PE masterbatch, PP masterbatch, ABS masterbatch, PVC masterbatch, EVA masterbatch, etc. According to the use of classification: such as injection masterbatch, blow masterbatch Spinning masterbatches and other varieties can be divided into different levels, such as:
1. Advanced injection masterbatch: For cosmetic packaging, toys, electrical enclosures and other advanced products.
2. Ordinary injection masterbatch: For general daily plastic products, industrial containers and so on. 3. Advanced blown film masterbatch: Used for blowing coloring of ultrathin products. 4. Ordinary blown film masterbatch: It is used for blow molding of general bags and woven bags.
5. Spinning masterbatch: It is used for spinning fiber spinning, pigment masterbatch, high concentration, strong coloring, good heat resistance and light resistance.
6. Low-grade masterbatch: It is used to manufacture low-grade products with low requirements on color quality, such as trash cans and low-grade containers.
7. Special Color Masterbatch: It is a color masterbatch manufactured by using the same plastic as the carrier according to the user's designated plastic type for the product. Such as PP color masterbatch, ABS masterbatch were selected PP, ABS as a carrier. General Color Masterbatch: A resin (usually a low melting point PE) is also used as a carrier, but it may be suitable for coloration of other resins than its carrier resin.
8, universal masterbatch Universal masterbatch is relatively simple and convenient, but the disadvantages are more, it is recommended that the user choose a special masterbatch. The heat-resistance grade of the special masterbatch is generally compatible with the plastic used for the product, and it can be used safely at normal temperature. Only in the following circumstances will cause varying degrees of discoloration, one is the temperature exceeds the normal range, one is too long downtime.
9. Masterbatch coloring has the following advantages over granulation coloring: 9.1. Coloring and product processing are completed at one time, avoiding the heating process of granulation and coloration on plastics, which is good for the protection of the quality of plastic products. 9.2. Minimize the production process of plastic products. 9.3. Can save a lot of energy Fourth, why use masterbatch?
The use of masterbatch has the following advantages:
1. Better pigment dispersion in the product: Masterbatch is an aggregate made by uniformly loading an ultra-constant pigment in the resin. In the production process of masterbatch, the pigment must be refined to improve the dispersibility and coloring power of the pigment. The carrier of the special color masterbatch is the same as the plastic type of the product, and has a good matchability. After heating and melting, the pigment particles can be well dispersed in the plastic of the product.
2. It helps to maintain the chemical stability of the pigment: When the pigment is used directly, because the pigment directly contacts the air during storage and use, the pigment will absorb water, oxidize, etc., and after being made masterbatch, the resin carrier will make the pigment and air , moisture isolation, can make the quality of pigments long-term unchanged.
3. To ensure the stability of the color of the product: The masterbatch particles are similar to the resin particles, which is more convenient and accurate in metering. When the mixture is mixed, it will not adhere to the container, and the mixture with the resin is also more uniform, so the stability of the addition amount can be ensured. Ensure product color stability.
4. Protection of the operator's health: The pigments are generally powdery, easy to fly when added and mixed, and will affect the health of the operator after being inhaled.
5. Keep the environment clean and free from contamination of containers;
6.Simple process, easy to change color, save time and raw materials: As the pigment is directly exposed to air during storage and use, moisture absorption, oxidation, clumping, etc. will occur. Direct use will cause color spots on the surface of plastic products. The hue is dark, the color is easily discolored, and the dust poplar is caused during mixing, which affects the operator's health. The masterbatch has undergone mechanical processing during the production process. The pigment has been refined, and the pigment and resin carrier and dispersant have been fully mixed to separate the pigment from air and moisture, thereby enhancing the weather resistance of the pigment and improving the pigment. The pigment's dispersibility and coloring power, bright hue. Since the color masterbatch and the resin particles are similar in shape, they are more convenient and accurate in metering, and do not adhere to the container when mixed, thereby saving the time for cleaning the container and the machine and the raw materials used for the cleaning.