A short video of the colored masterbatch workshop
Features of color masterbatch produced by Hamoon Baspar
Hamon Bespar colored masterbatches contain very fine CaCO3 powder, which is exploited from high calcium limestone with polyolefin resins and some other selective additives.
Under the Hamon Bespar brand, our color masterbatches are specially formulated for use in polyolefin polymers such as PP, PE, HDPE, LLDPE, etc.
- The technologies used in Hamon Bespar help to create high color loads with exclusive dispersion for optimal use of properties. In general, each main color has 5-10 color and saturation masterbatches for mixing and best live coloring.
- There are eight main color masterbatches in our factory, such as yellow, orange, red, green, brown, purple and gray.
- In addition to transparency, Hamon Bespar color masterbatches also offer special effects in the form of matte, shiny, pearl, granite, marble and metal.
- By incorporating special additives, our color masterbatches help optimize the manufacturing process of final polymer products, while reaping the benefits of antistatic, anti-fog, antioxidants, UV absorbers and inhibitors.
At Hamoon Baspar, we offer a wide range of color masterbatch production lines. Therefore, if our existing color masterbatches do not meet your process, please contact our sales numbers for a suitable custom solution, custom cost and faster delivery.
If we look carefully, we see that we use many colored plastics in our daily life. It is necessary to pay attention to the fact that the production of colored plastics and its steps are not as simple as it seems to us. Plastics can be colored in two ways:
- By raw pigment
- by Masterbach
Pigments or raw pigments are dry powders that are mixed with water to create a color consistency depending on the need, but masterbatches are more advanced.
One of the most common uses of masterbatch is coloring plastic materials. In fact, masterbatch is an effective method for coloring plastic.
There are things that affect the final color of the product, which we discuss below. Also, remember Hamon Bespar as a masterbatch producer in Iran.
What is a color masterbatch?
Plastic granules with high concentration, which are used for coloring plastic products, are called colored masterbatch. Color masterbatch is an essential raw material for the attractiveness of plastic products. Plastic products alone have no color. One of the ways to produce colored plastic products is to use a colored masterbatch. In addition to changing the final color of the product, color masterbatch also has the ability to change, optimize and modify properties. And the color masterbatch consists of pigments, compatibilizer and carrier polymer. In order to have different color spectrums, these materials should be used in different concentrations and amounts. An important point that should be taken into account when choosing masterbatch is the compatibility of its ingredients with plastic.
The property of coloring and improving properties by using colored masterbatches has made colored masterbatches very popular. The use of this material in different companies will increase the quality of the company’s products, as well as bring colored products to the market with special appeal. Masterbatch coloring of various products will attract customers and increase sales. Manufacturers in various industries use these materials.
Reasons for using color masterbatch
The beautiful and attractive colors of plastic products delight all consumers. In plastic products, it is useful and necessary to use colored masterbatch. In addition to the standard quality of the products and attention to maintaining their health through the consumption of plastic products, consumers also care a lot about the beauty of these products. Therefore, in the production of plastic products and household appliances, the use of colored masterbatch and white masterbatch has become a necessity.
In the early days of the plastic industry, products were made of virgin plastic, which were made directly from oil and had no other ingredients. In recent years, the amount of oil in nature has decreased, because this substance has been exploited too much, so the price of crude oil has also increased. In this situation, the use of colored masterbatch is highly recommended.
It is a new type of coloring for polymer materials, which is also known as pigment preparation. Color masterbatches are mainly used in plastics. Color masterbatch consists of three main elements: pigment or color, carrier and additive, it is an aggregate that is made by uniformly loading supernormal pigments in resin, and it can be called pigment concentration, so the color strength Its denominator is equal. Above the pigment itself during processing, a small amount of color masterbatch and uncolored resin are mixed to obtain a resin or colored product with the designed pigment concentration.
Is masterbatch pigmented?
In order to know that color masterbatch is pigment, we must first know that color masterbatch is a plastic particle processed from pigment and resin. The official definition is that a color masterbatch is made by uniformly loading super natural pigments into resin. It is a primary dyestuff and has the same function as a pigment, because both primary dyestuffs are objects. In addition, masterbatches are a coloring agent that is generally added as needed when producing thermoplastic products. Different materials and different colors add different proportions, generally, no more than 10%.
How to maintain colored masterbatch
The colored masterbatch is an essential component in the plastics industry and maintaining its quality is very important to prevent contamination. Color masterbatch contamination can be caused by various factors, including improper transportation, improper storage, and exposure to environmental factors such as heat and humidity. Therefore, it is very important to follow certain guidelines to maintain the quality of the color masterbatch.
One of the key steps in preventing contamination is the correct use of colored masterbatch. This includes ensuring that the masterbatch is not exposed to moisture, dust or other contaminants during transport or storage. It is also important to use clean equipment when handling the masterbatch, as any residue or dirt can affect the quality of the product. In addition, it is important to avoid mixing different color masterbatches, as this can lead to cross-contamination and affect the quality of the final product.
Storage is another important factor in maintaining the quality of color masterbatch. Masterbatch should be stored in a clean, dry and cool environment to avoid exposure to heat and humidity that can cause discoloration and affect its properties. The storage area should be free of dust and other contaminants that can affect the quality of the masterbatch. It is also important to store the masterbatch away from direct sunlight or any other source of UV rays.
Regular cleaning of equipment is also critical to prevent contamination of the color masterbatch. Any material left in the equipment can be mixed with the new batch and cause contamination. Therefore, it is important to thoroughly clean all equipment before using it for a new batch of masterbatch. It is also necessary to use specific equipment for each color to avoid cross-contamination.
In summary, maintaining color masterbatch quality involves proper handling, storage, and regular cleaning of equipment. By following these guidelines, manufacturers can ensure that their products meet the highest quality standards and avoid the negative effects of pollution. As such, it is very important for manufacturers to prioritize the quality of their color masterbatches to produce the best plastic products on the market.
Basic requirements for plastic paints
- Good thermal resistance (thermal stability)
Good light stability (ligh stability) - Good dispersion (i.ehigh coverage rate)
- No migration (including solvent resistance)
- It should have good coloring power.
So the question arises that since masterbatches are also a type of dyeing, they can also be called plastic pigments, i.e. pigments.
Color masterbatch production steps
1- pigment
Pigments are divided into two categories: organic pigments and mineral pigments
Common organic pigments are phthalocyanine red, phthalocyanine blue, phthalocyanine green, bright fast red, macromolecular red, macromolecular yellow, permanent yellow, permanent violet, azo red, etc. , carbon black, red iron oxide, yellow iron oxide, etc.
2. Carrier
This is the masterbatch matrix. The specific color masterbatch generally chooses the same resin as the product resin as the carrier, and the compatibility between the two is best, but the fluidity of the carrier should also be considered.
3. Scattering
To promote uniform dispersion of pigments and no further aggregation, the melting point of the dispersant should be lower than that of the resin, have good compatibility with the resin, and have better affinity with the pigment. The most common dispersants are: low molecular wax polyethylene, stearate.
4. Additives
Such as flame retardant, brightener, antibacterial, antistatic, antioxidation and other types, unless the customer has a request, the color masterbatch generally does not contain the above additives.
How to achieve the desired color
To produce pure color, it is necessary to pay attention to all the details. Things that affect the color of the final masterbatch include:
- The right choice of grain color for masterbatch production
- Ratio of pigments when using
- Type of polymer used, such as: PVC, PP, LLDP, HIPS, ABS, SAN, polyester, polycarbonate or nylon
- The base color of the polymer used (different polymers have different base colors, transparent, cream or yellow).
- Type of extrusion machine used (single screw or double screw extrusion)
- Dispersing agent used for uniform distribution of pigment in carrier resin.
- Optimum temperature of pigment polymer compounds based on thermal stability of pigments as well as polymers
To produce a product, each of the items causes different levels of masterbatch to be used, which should be considered in the masterbatch formula of these items.
Another important factor that should be considered is that internal and external lubricants should be used to reduce the friction forces between polymer and pigment molecules. This makes the flow of the melt smooth, and also helps in proper dispersion and distribution.
The things mentioned will guarantee the production of high quality masterbatch. The goal of every manufacturer is to produce the best product and to have the highest quality plastic that is the main need of the user.
Steps to use color masterbatch
Determine the percentage that should be added to the color masterbatch
Mixing of materials and masterbatch in the mixer according to the determined ratio
Continue the process normally and use the masterbatch in the product
There are factors that affect the properties and dosage of masterbatch, such as processing conditions, weather conditions, light stability, heat stability, required thickness and turbidity or transparency.
Application of color masterbatch
There are two types of masterbatch: color masterbatch and additive masterbatch.
The additive method is used to change the properties of plastic. In fact, masterbatch adds properties to plastic; Such as: static electricity, flexibility, flame retardant and…
Color masterbatch has a high concentration and is used to add color to plastic.
When we combine colored masterbatch and additives with plastic, the final output product is either colored plastic or plastic that has acquired the necessary properties.
The most common method used by molders. Masterbatches consist of concentrated pigments dispersed in a polymeric carrier resin. During molding, the masterbatch is poured into natural resin as it enters the press at a pre-defined ratio to achieve the desired color. Color masterbatch is the most cost-effective method for coloring plastic and can be obtained in small quantities.
The effect of colored masterbatch on injection plastic parts.
Although this issue is rarely at the top of the list of considerations in project planning, it should be addressed at the material selection stage. This process requires several important steps. The choice of color depends on factors including the actual plastic involved and the end application, which may impose durability, environmental factors and cost.
Relevant plastic properties include melt flow rate, melt or processing temperature, clarity, structure, and reinforcements and fillers used.
Advantages of using masterbatch in plastic painting
As mentioned before, two different methods can be used to paint plastic. But considering that choosing the type of coloring is very important in obtaining the final product, it is better to choose a method that results in the best product. In general, the method that is preferred by manufacturers for some reasons is the masterbatch method.
The use of color masterbatch in the printing industry
Color masterbatch is a highly effective solution used in the printing industry that provides a wide range of benefits to the businesses that use it. The benefits of color masterbatch are many and can make a significant difference in the final product.
One of the most important advantages of using a color masterbatch is the ability to achieve consistent color throughout the printing process. This consistency is essential because it allows businesses to produce high-quality products that meet their customers’ expectations. This is especially important in the printing industry, where color accuracy is critical. Using a color masterbatch ensures that businesses can maintain color consistency throughout the entire printing process, from start to finish.
Another advantage of using colored masterbatch is the ability to reduce waste. When using a color masterbatch, businesses can create exactly the amount of color they need for their project without creating excess or leftover materials. This not only saves money, but also reduces the amount of waste produced during the printing process.
In addition to stability and reducing waste, color masterbatch also offers more flexibility and creativity. This is because Color Masterbatch comes in a wide range of colors and can be customized to meet the specific needs of any project. This allows businesses to be more creative in their design and offer more options to their customers.
In conclusion, the benefits of color masterbatch in the printing industry are clear. From consistency to reduced waste to greater flexibility and creativity, Color Masterbatch is an invaluable tool for businesses looking to produce high-quality print materials. By using this type of masterbatch, businesses can achieve better results and exceed the expectations of their customers.
Advantages of using masterbatch over raw pigment
In the following, we mention some examples of the advantages of using color masterbatch in raw pigment ratio.
Easy to use masterbatch
As mentioned, the raw pigments are available in powder form, but the masterbatch supply is in the form of pellets. For this reason, the production process of masterbatch, which is in the form of pellets, is easier.
Also, because pigments are powders, they cause environmental pollution, but Masterbatch is not like this.
In addition, it is much easier to store masterbatches that have a ball shape than pigments.
Masterbatches are more consistent and controlled.
Masterbatches are more compatible than raw pigments due to their special shape and design. Due to the concentration of the masterbatch compared to the pigment, a smaller amount of it is needed to produce the final product. By using the masterbatch, a clearer product can be obtained because it has a more precise concentration and is also distributed uniformly.
Optimal masterbatch distribution
The most important difference between masterbatch and raw pigments is their distribution and dispersion. The raw pigment does not spread well and usually the final product is obtained using the pigment in pieces, but the design of the masterbatches is such that uniform coloring is possible.
Pigments do not dissolve in plastic, while masterbatches go into solution in plastic and mix easily.
The color masterbatch is similar to the resin particles, it is more convenient and accurate to measure, it does not stick to the container when mixing, and the mixing with the resin is more uniform, so it can ensure the stability of the added amount. To ensure product color stability.
If the pigment is used directly, the pigment will absorb water and oxidize due to direct contact with air during storage and use. After becoming a color masterbatch, the resin carrier can separate the pigment from air and moisture, so that the quality of the pigment can be maintained for a long time.
In the masterbatch production process, the pigments must be refined to improve the dispersion and color strength of the pigments. The color masterbatch carrier is specific to the plastic of the product and has a good match, and after heating and melting, the pigment particles can be spread well in the plastic of the product.
And finally
We must say that due to the better storage of masterbatch, its easier handling and economical use without wasting it to produce a more consistent product, manufacturers prefer masterbatch to raw pigment pods. So, according to what has been said, it is clear that the best and most practical method for coloring plastics is to use masterbatch.
Bright colors help your products grab the attention of consumers, with 93% of consumers saying the first thing they notice about a product is its appearance. Make sure they like what they see when they look at your products.
From commercial machinery and home appliances to textiles, auto parts and packaging, designers, brand managers and plastics processors rely on Hamon Bespar’s advanced color technology and deep technical support. We work with you to formulate the colors you have in mind for your products and have the plastic processing expertise to help you paint and manufacture your products efficiently.
Color masterbatch frequently asked questions
The question that is asked about the reasons for seeing streaks of pigments in plastic products is frequent, and for this reason, we have addressed it in this article. We must examine the root of this problem from two aspects, one from the perspective of the physical and mechanical properties of plastic and the other from the perspective of plastic injection molding equipment.
Regarding the standard temperature, if the temperature is not controlled, the color masterbatch cannot be completely mixed with the resin when entering the mixing chamber.
The injection molding machine may not produce the required standard pressure and cylinder storage will increase.
Bad dispersion of colored masterbatch or bad plastic. This process can be done as follows:
Adjust the temperature slightly through the empty port area.
Apply some pressure to the mixing chamber of the injection molding machine. If the mentioned method did not work and the problem still remains, it could be a problem with dispersion or color masterbatch.
4- When using a special color masterbatch, the product surface is more likely to break.
This problem may be due to poor dispersion and miscibility used by manufacturers of dispersants or additives that negatively affect the physical and mechanical properties of the product.
5- Color difference compared to masterbatch information
This question is very simple, but there are many possibilities and reasons, especially: the color masterbatch does not have an accurate color test, and when the top domestic companies use incorrect measurements, pigments, especially small and medium-sized companies, to 3 color masterbatches are randomly measured. The problem of resin matching may be the incorrect choice of color carrier or the manufacturer changing the resin variety
6- Is the temperature of the machine especially suitable for high-concentration color and how long does the toner stay in the machine?
Processing method: First, check whether the resin type, color measurement is accurate, then adjust the temperature and speed of the machine.
Another problem or question that may arise is: with the same masterbatch, resin and formula, the injection molding products of the injection molding machine have different color depth and resolution, why?
This is often due to the injection molding machine. The construction of the injection molding machine, different use time or different storage conditions, as a result of the poor mechanical condition, especially the difference between the temperature and the master cylinder, so that the dispersion state of the masterbatch is not the same, this phenomenon appears.
Another problem or question that may arise is: with the same masterbatch, resin and formula, the injection molding products of the injection molding machine have different color depth and resolution, why?
This is often due to the injection molding machine. The construction of the injection molding machine, different use time or different storage conditions, as a result of the poor mechanical condition, especially the difference between the temperature and the master cylinder, so that the dispersion state of the masterbatch is not the same, this phenomenon appears.
The density and melt index will be different in different grades of resin, so the properties of the resin are different, and there are also differences in compatible colors and its color change, in general, as long as the density and melt index change.
This is often due to the injection molding machine. The construction of the injection molding machine, different use time or different storage conditions, as a result of the poor mechanical condition, especially the difference between the temperature and the master cylinder, so that the dispersion state of the masterbatch is not the same, this phenomenon appears.
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