Where is the production of masterbatches, which manufacturer is good?

At present, there are many manufacturers producing masterbatches on the market, and the quality of masterbatches is also uneven. When choosing a masterbatch, you need to know the following aspects in order to buy a good masterbatch.

1. Other properties of pigments should be understood, such as plastic products used in food and children's toys, and pigments should be non-toxic. For plastic products used in electrical appliances, pigments with good electrical insulation should be selected. For outdoor plastic products, pigments with good weather aging resistance should be selected.

2. The dispersion and tinting strength of the pigment should be good. When the pigment is unevenly dispersed, it will affect the appearance and performance of the product. When the pigment tinting strength is poor, the amount of pigment will increase and the material cost will increase.

The dispersion and tinting strength of the same pigment are not the same in different resins, so this should be paid attention to when selecting a pigment. The particle size of the pigment is also related to the dispersibility, the smaller the particle size of the pigment, the better the dispersibility and the stronger the tinting strength.

3. The pigment cannot react with resin and various additives, and has strong solvent resistance, small mobility, and good heat resistance. In other words, masterbatches cannot participate in various chemical reactions. For example, carbon black can control the curing reaction of polyester plastics, so carbon black materials cannot be added to polyester.

4. Due to the high molding and processing temperature of plastic products, the pigment should not decompose and change color under the condition of molding heating temperature, and the heat resistance of inorganic pigments is generally good, and the heat resistance of organic pigments and dyes is poor, which should be paid enough attention to when selecting pigment varieties.

As for which manufacturer produces better masterbatch, it is necessary to consider comprehensively, quality, and after-sales service. There are several well-known masterbatch manufacturers in Henan, you can ask.

Tu Duoduo** sells high-quality, low-cost masterbatches, all of which are shipped directly from the manufacturer, and the products are all ** can be purchased with confidence.

Suzhou Boyun Plastic Industry****.

The masterbatch production process is very demanding, and the wet process is generally used. The masterbatch material is made by aqueous phase grinding, phase transfer, washing, drying and granulation, and only in this way can the product quality be guaranteed.

In addition, a series of tests should be carried out at the same time as the pigment is grinded, such as measuring the fineness of the sanding slurry, determining the diffusion properties of the sanding slurry, determining the solid content of the sanding slurry and determining the fineness of the color paste.

There are four methods for the production of masterbatch materials:

1) Ink method: As the name suggests, it is a production method that uses ink colorant in the production of masterbatch, that is, through three-roller grinding, a layer of low molecular protective layer is coated on the surface of the pigment. The ground fine color paste is then mixed with the carrier resin, then plasticized by a two-roll plasticizer (also called a double-roll open mill), and finally granulated by a single-screw or twin-screw extruder.

The process is as follows:

Batching, stirring, coarse color paste, three rollers grinding, fine color paste, two rollers plasticizing, extrusion and granulation.

2) Rinsing method: the pigment, water and dispersant are sanded to make the pigment particles less than 1 m, and the pigment is transferred to the oil phase through the phase transfer method, and then dried to obtain the masterbatch. Organic solvents are required for phase transfer, as well as corresponding solvents** devices. The process is as follows:

Fine color paste rinsing, evaporation, concentrate drying, adding carrier, extrusion granulation.

3) Kneading method: After mixing the pigment with the oily carrier, the pigment is used to make the pigment flush from the aqueous phase into the oil phase by using the lipophilic characteristics of the pigment. At the same time, the surface of the pigment is coated by an oily carrier to make the pigment disperse and stabilize and prevent the pigment from condensing.

4) Metal soap method: the particle size of the pigment reaches about 1 m after grinding, and the soap solution is added at a certain temperature, so that the surface layer of each pigment particle is evenly moistened by the soap solution to form a layer of saponification solution, when the metal salt solution is added, it reacts with the saponification layer on the surface of the pigment to form a protective layer of metal soap (magnesium stearate), so that the pigment particles after grinding will not cause flocculation, and protect a certain fineness.

The preparation methods of color masterbatch mainly include: ink method, flushing method, kneading method and metal soap method. Masterbatches can also be prepared using high-speed mixers and twin screw extrusion.

In fact, the production process of masterbatch is very complex, so wet process is generally used, and masterbatch goes through a series of processing processes, such as grinding, turning, washing, drying, manufacturing and other steps, it is necessary to strictly control the process of each link in order to ensure the stability of the final product.

So the production of masterbatch is not simple, rough, but a very delicate process. Housheng finishing provides.

The choice of masterbatch should be investigated in many ways, first choose the right concentration of products, and then compare, you can go to the manufacturer to see, negotiate, so as to establish long-term cooperation. When choosing a manufacturer, you can be nearby, so that the freight cost will be saved a lot. It is also convenient for future cooperation and communication, or emergency transfer.

1.Make the pigment have better dispersion in the product The pigment must be refined in the production process of masterbatch to improve the dispersion and tinting strength of the pigment. The carrier of the special masterbatch is the same as the plastic variety of the product, and has good matching, and the pigment particles can be well dispersed in the plastic after heating and melting.

2.It is conducive to maintaining the chemical stability of the pigment If the pigment is used directly, due to the direct contact of the pigment with air during storage and use, the pigment will absorb water and oxidize, and after making the masterbatch, the quality of the pigment can be unchanged for a long time because the resin carrier isolates the pigment from air and water.

3.Ensure the stability of the color of the product Masterbatch particles are similar to the resin particles, which is more convenient and accurate in measurement, will not adhere to the container when mixing, and the mixing with the resin is also more uniform, so the stability of the added amount can be guaranteed, so as to ensure the stability of the color of the product.

4.Protecting the health of the operator Pigments are generally in powder form, which are easy to fly when added and mixed, and will affect the health of operators after being inhaled by the human body.

5.Keep the environment clean.

6.Easy to use.

The full name of masterbatch is called masterbatch, also known as color species, is a new type of polymer material special colorant, it is composed of pigment or dye, carrier and additives three basic elements, is the supernormal amount of pigment or dye evenly attached to the resin and obtained aggregates, can be regarded as pigment concentrate, so his tinting strength is higher than the pigment itself. Masterbatches are mainly used in plastics. In order to achieve the desired color effect in plastic or rubber products.

The classification methods of masterbatch are commonly used as follows:

Classified by carrier: such as PE masterbatch, PP masterbatch, ABS masterbatch, PVC masterbatch, EVA masterbatch, etc.

Classified by use: such as injection masterbatch, blow molding masterbatch, spinning masterbatch, etc.;

Each variety can be divided into different grades, such as:

1.Advanced injection masterbatch: used in cosmetic packaging boxes, toys, electrical shells and other high-end products.

2.Ordinary injection masterbatch: used for general daily plastic products, industrial containers, etc.

3.High-grade blown film masterbatch: used for blow molding coloring of ultra-thin products.

4.Ordinary blown film masterbatch: used for blow molding coloring of general packaging bags and woven bags.

5.Spinning masterbatch: used for spinning and coloring textile fibers, the masterbatch pigment particles are fine, the concentration is high, the tinting strength is strong, and the heat resistance and light resistance are good.

6.Low-grade masterbatch: used to manufacture low-grade products with low requirements for color quality, such as trash cans, low-grade containers, etc.

7. Special masterbatch: It is a masterbatch manufactured by selecting the same plastic as the carrier according to the plastic variety specified by the user for the product. For example, PP masterbatch and ABS masterbatch are respectively selected as PP and ABS as carriers.

8. General color masterbatch: a certain resin (often PE with low melting point) is also used as the carrier, but it can be applied to the coloring of other resins other than its carrier resin. The general masterbatch is relatively simple and convenient, but there are many shortcomings, and it is recommended that users choose a special masterbatch.

The heat resistance grade of the special masterbatch is generally suitable for the plastic used in the product, and it can be used with confidence at normal temperatures. However, it will cause different degrees of discoloration in the following cases, one is that the temperature is beyond the normal range, and the other is that the downtime is too long.

1.Masterbatches allow pigments to have better dispersion in products.

Masterbatches require refinement of pigments during the production process to improve the dispersion and tinting strength of the pigments. The carrier of the special masterbatch is the same as the plastic variety of the product, with good matching, and the pigment particles can be well dispersed in the plastic products after heating and melting.

2.Masterbatches are beneficial for maintaining the stability of chemical pigments.

If the pigment is directly used in the plastic processing process, the pigment will be directly in contact with the air during storage and use, and the pigment will absorb water and oxidize, and after making the masterbatch, the resin carrier can isolate the pigment from air and moisture, which can maintain the chemical stability of the pigment for a long time.

3.Masterbatches are good for maintaining color stability.

The masterbatch particles are similar to the resin particles, which makes the measurement more convenient and accurate, and will not adhere to the container when mixing, and the mixing with the resin is more uniform, which can ensure the stability of the added amount, so as to ensure the stability of the color of plastic products.

4.Masterbatches are beneficial for maintaining the physical properties of the base material.

The proportion of masterbatch addition is low, and the basic raw materials can be directly injected after mixing masterbatches, which can maintain the physical properties of the basic materials to a large extent.

5.Protect the health of your operators.

Because the masterbatch is granular, it can greatly reduce powder fly-off during pigment use, protecting the health of the operator.

6.Masterbatches can ensure a clean environment and are easy to use.

The advantages of masterbatches are:

1) The cost of the product is low, and the cost reduction of products with small batches and frequent color changes is particularly prominent.

2) Color matching technology and simple operation, this technology is especially suitable for factories with weak equipment and technical force.

3) The operating environment is good, because the masterbatch is granular and has no pigment dust, there is no dust flying in the operation, which reduces pollution and is conducive to civilized production.

Summary: What is a masterbatch? I believe there are many people who don't know.

Masterbatch is a kind of industrial raw material, is a new development of products in recent years, is the super-normal amount of pigment evenly loaded into the resin into the aggregate, mainly used in the plastic, fiber industry, is a relatively good method for adding various additives in the product industry. What are the components of masterbatch? Let's find out.

1. What is the masterbatch of the color wool manuscript?

Masterbatch is a plastic colorant formed by a high proportion of pigments or additives and thermoplastic resin, which has good wetting and dispersion effect on the colorant, and has good compatibility with the colored material. Masterbatch, also known as color seed, is a special colorant for new polymer materials, also known as pigment preparations.

Masterbatches are mainly used on plastics. Masterbatch is composed of three basic elements: pigment or dye, carrier and additives, and is an aggregate prepared by uniformly attaching an extraordinary amount of pigment in the resin. When processing, a small amount of color masterbatch and uncolored resin are blended to achieve the coloring resin or product with the design pigment concentration.

2. What are the components of masterbatch?

1. Pigments or dyes.

Pigments are further divided into organic pigments and inorganic pigments. Commonly used inorganic pigments are: phthalocyanine red, phthalocyanine blue, phthalocyanine green, lightfast red, macromolecular red, macromolecular yellow, permanent yellow, permanent violet, azo red, etc.

Commonly used inorganic pigments are: cadmium red, cadmium yellow, titanium dioxide, carbon black, iron oxide red, iron oxide yellow, etc.

2. a carrier. It is the matrix of the masterbatch. Special masterbatches generally choose the same resin as the product resin as the carrier, and the compatibility between the two is the best, but at the same time, the fluidity of the carrier should be considered.

3. Dispersant.

To promote the uniform dispersion of pigments and no longer coagulate, the melting point of the dispersant should be lower than that of resin, and it has good compatibility with resin, and has a good affinity with pigments. The most commonly used dispersants are: polyethylene low molecular weight wax, stearate.

4. Additives.

Such as flame retardant, brightening, antibacterial, antistatic, antioxidant and other varieties, unless the customer requires, generally the masterbatch does not contain the above additives.

1.How do I use masterbatches?

The use of masterbatch is very simple, just mix it with resin particles according to the specified ratio and mix it by hand.

The following issues should be taken into account in the operation of the equipment:

Injection molding machines. Or the mixing chamber of the extruder generally has multiple temperature zones, among which the temperature of the section close to the blanking port should be slightly higher, which is to make the masterbatch melt quickly after entering the mixing chamber and mix evenly with the plastic resin as soon as possible, which is conducive to the masterbatch pigment in a good dispersion state in the product.

The injection molding machine is properly applied back pressure, which can improve the mixing effect of the screw, which is conducive to the dispersion of pigments, and the application of back pressure is to slow down the injection molding speed.

Appropriately increasing the temperature of the die head of the extruder can increase the brightness of the product.

The use of masterbatch is very simple, only need to mix with resin particles according to the specified ratio, and stir evenly by hand before use. The specific proportion needs to be determined according to the color of the finished product.