First, the color master profile:
Color masterbatch is also known as color, color masterbatch is a new type of polymer material special coloring agent, also known as pigment preparation. It is widely used as a coloring agent for plastics in the plastics industry. The color masterbatch consists of three basic elements: pigment or dye, carrier and additive. It is an aggregate obtained by uniformly loading a super-constant pigment or dye into a resin. It can be called a pigment concentrate, so his tinting strength. Higher than the pigment itself. To put it simply, color masterbatch is an aggregate made by uniformly loading a super-constant pigment or dye into a resin.
Second, the basic components of the color masterbatch are:
Pigment or dye
Pigments are further divided into organic pigments and inorganic pigments.
Commonly used organic pigments are: phthalocyanine red, phthalocyanine blue, phthalocyanine green, fast red, macromolecular red, macromolecular yellow, permanent yellow, permanent solid purple, azo red and the like.
Commonly used inorganic pigments are: cadmium red, cadmium yellow, titanium white powder, carbon black, iron oxide red, iron oxide yellow and the like.
2. Carrier
The carrier is the matrix of the masterbatch. The special color master generally selects the same resin as the carrier resin as the carrier, and the compatibility between the two is the best, but the fluidity of the carrier is also considered.
3. Dispersing agent
The pigment is uniformly dispersed and no longer aggregates. The melting point of the dispersing agent should be lower than that of the resin, have good compatibility with the resin, and have 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 asks, in general, the color masterbatch does not contain the above additives.
3. What varieties and grades are the masterbatch?
There are several commonly used classification methods for color masterbatch:
Classified by carrier: such as PE masterbatch, PP masterbatch, abs masterbatch, pvc masterbatch, EVA masterbatch, etc.
Classified by use: such as injection masterbatch, blown color masterbatch, spinning masterbatch, etc.
Each variety can be divided into different levels, such as:
1. Advanced injection masterbatch:
Used in cosmetic packaging boxes, toys, electrical enclosures and other advanced products.
2. Ordinary injection masterbatch:
Used in general daily plastic products, industrial containers, etc.
3. Advanced blown film masterbatch:
Used for blow molding coloring of ultra-thin products.
4. Ordinary blown film masterbatch:
It is used for blow molding coloring of general packaging bags and woven bags.
5. Spinning masterbatch:
It is used for textile fiber spinning and coloring. The color masterbatch pigment has fine particle size, high concentration, strong tinting strength, good heat resistance and light resistance.
6. Low-level masterbatch:
Used to manufacture low-grade products that do not require high color quality, such as trash cans, low-grade containers, etc.
7. Dedicated color masterbatch:
It is a color master made of the same plastic as the carrier according to the plastic type specified by the user for the product. For example, PP color masterbatch and ABS color masterbatch respectively use PP and ABS as carriers.
Universal color masterbatch: A resin (often a low melting point PE) is also used as a carrier, but it can be applied to the coloration of other resins than its carrier resin.
8. Universal color masterbatch:
The universal color masterbatch is relatively simple and convenient, but has many disadvantages. It is recommended that the user choose a special color masterbatch.
The heat resistance grade of the special color masterbatch is generally compatible with the plastic used for the product, and can be used with confidence at normal temperature. Only in the following cases will cause different degrees of discoloration, first, the temperature is beyond the normal range, first, the downtime is too long.
9. Masterbatch coloring has the following advantages over granulation coloring:
9.1. Coloring and product processing are completed once, avoiding the heating process of granulation coloring on plastics, and is beneficial to the quality of plastic products.
9.2. The production process of plastic products is simplified.
9.3. A lot of power can be saved.
Fourth, why use a color master?
The use of color masterbatch has the following advantages:
1. Make the pigment have better dispersibility in the product:
A masterbatch is an aggregate obtained by uniformly loading a super-constant pigment into a resin.
In the production process of the color masterbatch, the pigment must be refined to improve the dispersibility and tinting strength of the pigment. The carrier of the special color masterbatch has the same plasticity as the product, and has good matching property, and the pigment particles can be well dispersed in the plastic of the product after heating and melting.
2. Conducive to maintaining the chemical stability of the pigment:
When the pigment is directly used, since the pigment directly contacts the air during storage and use, the pigment may absorb water, oxidize, etc., and after the color masterbatch, since the resin carrier separates the pigment from the air and moisture, the quality of the pigment may not be long-term. change.
3. Ensure the stability of the color of the product:
The color masterbatch particles are similar to the resin particles, and are more convenient and accurate in metering, do not adhere to the container during mixing, and are evenly mixed with the resin, thereby ensuring the stability of the added amount, thereby ensuring the stability of the color of the product.
4. Protect the health of the operator:
Pigments are generally powdery, easy to fly when added and mixed, and will affect the health of the operator when inhaled by the body.
5. Keep the environment clean and non-staining utensils:
6. The process is simple, easy to change color, save time and raw materials:
Since the pigment directly contacts the air during storage and use, moisture absorption, oxidation, agglomeration, etc. may occur, and the color point may appear on the surface of the plastic product when used directly, the hue is dark, the color is easily faded, and it is caused by mixing. Dust is flying, affecting the health of the operators. The masterbatch is mechanically processed in the production process to refine the pigment, and the pigment and the resin carrier and the dispersing agent are thoroughly mixed to separate the pigment from the air and moisture, thereby enhancing the weather resistance of the pigment and improving the weatherability. The dispersibility and tinting strength of the pigment, the hue is bright.
Compact Solar Water Heater is a cost-effective system for residential hot water application. This system is designed according to thermosiphon principle and operating with proportion difference between cold and hot water. The water heated by Vacuum Tubes is held in the stainless steel storage tank where the insulation preserves the heat.
The compact Solar Water Heater uses the sun to heat the working fluid (mostly water) in the vacuum tubes. The Solar Collector absorbs solar radiation, and converts the sunlight to heat and transfer it to the water. The heated water naturally rises through the solar collector into the water tank where the cooler water at the bottom of the tank is forced out and descends to the bottom of the collector (thermosiphon circulation). The circulation will be interrupted when there is no solar radiation.
Compact Solar Water Heater
Compact Water Heater,Compact Solar Water Heater,Compact Pressurized Solar Water Heater,Compact Non-Pressurized Solar Water Heater
Linuo Ritter International Co.,Ltd , https://www.lnrtsolarenergy.com