Plastic Dye – Adding Color To The Prosperity Of Plastic Industry

It is well known fact that proper color schemes and right shades play a vital role in enhancing the beauty of any object. That is why manufacturers of industrial as well as consumer products lay a lot of stress on using the right kind of dyes that will make their products attractive and eye catching. Over the years the use of plastic in various manufacturing process has increased tremendously and there is an unending demand of the wide range of plastic products that can be put to numerous uses in everyday life. In such a scenario, plastic product manufactures try to make their merchandise more striking for customers, by using a wide variety of plastic dye.

In the plastic industry, perfect color forms an integral aspect of every product and hence has to be chosen with considerable attention. The choice of color not only depends on the end use of the product but also upon the impact of the color on the product being manufactured. Most often manufacturers are unaware of the negative effects that the wrong choice of color can have on the overall, strength and durability of the plastic product.

Generally, dyes and pigments are the most common types of colorants used in the plastic industry. Even though both these colorants use the technique of visible light absorption and scattering, to impart color to the target object, there is a limited use of dyes in the plastic industry mainly because of the fact that the dyes used in this industry need to be strong, show good heat stability and be transparent. Plastic dye is the most common type of dye that is used for coloring plastics. These solvent based dyes can be used for coloring a wide range of materials including acetates, nylon, polyester, acrylics, PVC, PMMA, PETP, polystyrene and styrene monomers.

The choice of using a dye or a pigment to impart color to a plastic product largely depends on the type of base polymer being used for manufacturing the product. While pigments are a preferred choice for coloring polyolefins, dyes are primarily used for imparting color to polycarbonate, polystyrene, acrylic, and other types of polymers, mainly because they exhibit great color strength and transparency. Another important and decisive factor in choosing the coloring agent is its compatibility with the base resin, which ensures the prevention of a color shift over the time.

Royce is a fully diversified international company which was founded in 1929 to manufacture chemicals for textile industry. Today more than 80 years later, they have a resounding presence across the world and offer solution to diverse needs of chemicals to their customers which also include Plastic dye. For detailed information, logon to http://www.royceintl.com

Why Good Specialty Chemicals Manufacturer is Imperative For Your Business

If you have been manufacturing products that require specialty chemicals, you probably understand the importance of sourcing them from good companies. Good quality chemicals enhance the quality of your products, making them safer, cleaner and more effective. In fact, the success of any manufacturer depends, to a very large extent, on the supplier from whom they outsource their raw material. Here are a few things that you need to look out for when searching for reliable manufacturer.

Safety Standards

One thing that you should ensure while choosing a speciality chemicals manufacturer is stringent safety measures. They should not only be committed towards the safety of its employees but also the environment and public at large.


The best way to determine the standard of quality management systems is to interview the manufacturer and ask if they adhere to ISO standards of safety. One way to find it out is to check active programmes for employee safety and healthy work environment. Along with that, look for certification that authenticates that company’s operations and chemical processes do not have a negative impact on the environment.


Check if the company is willing to add safety compliance in contract wherein it ensures that it will stick to governmental regulations. All reputable companies maintain an open book policy that allows clients, employees and local communities to discuss safety protocols and clean up measures. You can also verify REACH compliance (registration, evaluation, authorization and restriction of chemicals) to ensure the safety repertoire of specialty chemicals manufacturer you intend to work with.

Chemical Applications

You should also look for well-diversified chemical applications and processes before you settle for a chemical manufacturer. Don’t hesitate to ask if they can provide products from a few hundred kilos to a few thousand tonnes. The skill and experience of a manufacturer can be gauged by the fact that they can manufacture viscous products as well as isolate and dry components them if they were in flammable solvents. Only a good manufacturer has the equipment and expertise to handle exothermic reactions of chemical processes.


Make sure that Specialty Chemicals Company you choose has facilities with centrifuges, reactors, and dryers along with enough storage capabilities to meet your chemical manufacturing needs. Having modern lab facility for testing is another important aspect that cannot be ignored.


Royce is a fully diversified international company which was founded in 1929 to manufacture chemicals for textile industry. Today more than 80 years later, they have a resounding presence across the world and offer solution to diverse needs of chemicals to their customers including speciality chemicals. For detailed information, logon to http://www.royceintl.com

Polymer Colorant - Learning Some Basic Facts

Plastic is undoubtedly one of the most important inventions of human history, which has become an integral part of our everyday lives. The term plastic is generally used for a wide range of synthetic or semi-synthetic products created as a result of polymerization and having the basic property of plasticity. However, most often plastics contain other substances or additives which help in enhancing some of their basic properties such as their stiffness, strength, resistance to heat and flame or even resistance to electricity. Polymer colorant is one of the several additives used and serves the specific purpose of imparting color to plastics.


The colorants used with plastics are primarily of two types, namely organic colorants also known as dyes and inorganic colorants also known as pigments. Generally, the choice of the type of polymer colorant that would be most suitable for the plastic depends on the amount of light that the plastic is exposed to and the service temperature of the plastic. Since pigments show a greater resistance to both temperature and light they are used for dying plastics that are more likely to be used in high temperature areas where they are also constantly exposed to light. Other important factors that need to be considered during the choice of a colorant for plastics are their applications, level of colorfastness and reaction to base plastic material.


Today, through the use of a proper combination of polymer colorant system, it is possible to add special effects to the appearance of plastic. That is why it is now possible to find plastic that have a metallic, pearlescent, stone and fleck and even thermo-chromatic and photo-chromatic appearance. It is also vital to use the right colorant system to ensure greater efficiency of the plastic end product. For example using colorant systems that provide little or no X-ray opacity for plastics intended to be used in medical applications, can render the end products useless for such purposes. As such it is vital to pre-determine the end use of the plastic prior to choosing the most suitable coloring option for it. Similarly, in plastics that are used for manufacturing toys or items for household use, the brightness and safety takes prominence over other factors.

All You Need To Know About Solvent Dye

Solvent dye, which is also popularly known by the name of oil dye, is the type of dye that is generally soluble in an organic solvent. While most dyes exhibit the property of ionization, a solvent dye generally does not ionize. These dyes color by getting dissolved in the targeted material, which is generally a lipid or a non-polar solvent. The naming pattern of solvent dyes has the word solvent followed by the name of the base color and a unique number. The classification helps in specifically identifying the dyes through the name of the stated color and its primary mechanism of staining.


A solvent dye is generally introduced in the form of a solution that is dissolved in an organic solvent. A large number of solvent dyes are basically azo dyes, which have been molecularly re-arranged to get rid of their ionizing capability. The molecular re-arrangement also enables these dyes to become soluble in non-polar solutions such as triglycerides. Some other common solvents for solvent dyes include alcohols, ethers, ketones, aliphatic and aromatic hydrocarbons, oils, fats, waxes and chlorinated hydrocarbons. Although, being soluble in an organic solvent is a basic physical characteristic of a solvent dye, there are some important applications, where the dyes need to be applied directly instead of first dissolving them in a solvent.


The fact that solvent dyes are soluble in non-polar mediums lends them a versatility that makes them perfect for use in a wide range of applications. They are used in industries on a large scale for foil printing, printing inks, marking pens, ball point pens, candles and other waxes, polishes, leathers, wood stains, acrylic resins, varnishes and shellacs. They are even used to signal smoke and have a diverse usage in the pyrotechnics industry. Additionally, these dyes are also widely used in the automotive industry for coloring lubricants as well as in the industrial cutting sector.


However, the most common and widespread use of solvent dyes is in the plastic industry where they are use to impart color to a wide range of solid materials that include acetates, nylon, polyester, acrylics, PVC, PMMA, PETP, polystyrene and styrene monomers. They are also used as integral components in the manufacturing of biological stains used to distinguish distinct cell structure components that play a vital role in medical diagnosis and scientific research.

Learning Some Important Facts About Vat Dye

When it comes to choosing a dye for industrial that provides not only high quality color fastness but also great resistance to weathering and light, a Vat dye is an obvious choice. Generally, Vat dyes exhibit qualities of a speedy effect and a good degree of exhaustion besides which they diffusion within the fiber at a very slow pace. These dyes have a fairly equal particle size when produced commercially as a large particle size results in poor stability besides causing a reduced color yield in some dyes.


Vat dyes are divided into four main categories depending on the temperature, and the quantity of caustic soda hydrosulfite and salt used for dyeing. The first category is the IN dyes which require high temperature as well as large quantities of caustic soda and hydrosulfite. The IW dyes form the second category and they require medium temperature and medium quantity of caustic soda and hydrosulfite plus salt. The next category is of IK dyes which require low temperature and a small amount of caustic soda and hydrosulfite plus salt. The fourth category is of IN Special dyes which require a greater amount of caustic soda and higher temperature than IN dyes.


A number of methods for using Vat dyes have been designed and used. Various factors determine the rate of reduction of Vat dyes, including temperature, time and pH as well as the concentration of the reducing agent. The most common type of reducing agent used for coloring with Vat dyes is sodium hydrosulphite, which is also known by the name of hydros. It is important to understand that only a part of hydros is actually used up in the reduction of Vat dyes while, a major percentage of the compound is destroyed by its reaction with atmospheric oxygen.


The coloring of cellulosic fibers using a dye is completed in various stages. In the first stage the insoluble vat pigment is converted into soluble sodium leuco-vat anions, which in turn is diffused into the cellulosic fibers. The next stage involves the remomal of all the alkalis and reducing agents from the fiber by washing them off. In the next stage, the soluble dye contained within the colored fiber is converted back into insoluble pigments through oxidation. The final stage is the soaping of the fiber which helps in re-orientating and associating the isolated vat pigment molecules to create a more crystalline form.

Step by Step Epoxy Application for Outstanding Results

Often referred as a magical potion, Epoxy is extensively used in industry and commercial settings for its durability, versatility, superior performance. Fantastic looks and resistance to the chemicals that epoxy coating offers make it a very widely used product.


However, preparation prior to actually using the paint is the secret to a great paint job. You not only have to choose the right product but also prepare the surface where the coating is to be applied in order to get outstanding results. Since epoxy paints are formulated keeping in view the particular task, it’s a good idea to take a stock of expected use of the surface and environmental factors before applying the paint. Selecting the right paint would go a long way in increasing the durability of the finished coating.


Preparing the surface is the next important step once the paint has been selected which is done by blasting. For floors, shot blasting is used and for structures, mostly sand blasting. It not only removes stains or remains of any old paint that may interfere with adhesion of the new application of epoxy but also cause a profile.


The epoxy begins to cure the moment base and curing agent is mixed so paints are mixed in a set proportion right at the job site and then you have a very limited amount of time to apply the mixture on the surface.
Just like other paints, epoxy also has optimum film thickness which can only be achieved when right amount of mixture is applied to the surface. Only an expert can brush, roll or trowel the coating into place so that it is neither too thick nor too thin.


You would need epoxy application with several coats for its finish to be durable. Between coats, epoxy is left to cure for a fixed amount of time and next coat has to be applied at the right time when the previous coat has reached the most favorable condition. If left for too long, the new coat won’t settle into the previous layer. Alternatively, if left for too less a time the new coat would interfere with the previous layer's curing process.

Once epoxy application is complete and final coat is laid, it is left for curing which may take several days. Final curing makes epoxy coating a strong and lasting shield which not only saves the underlying surfaces from any harm but also makes it more attractive.

All You Need To Know About Basic Dye

When people think about dyes, the image that comes to their minds is generally of colored aromatic compounds having the ability to ionize, making them capable of interacting with tissue components that are oppositely charged. Dyes are generally classified as basic dye and acidic dye depending on the type of charge they possess. Acidic dyes are negatively charged dyes that can interact with positively charged tissue components, while basic dyes are positively charged and can bind themselves with negatively charged tissue constituents.


The naming scheme of basic dyes follows a specific pattern in which the word “Basic” is followed by the name of the base color and a unique number. For example, Basic Red 9 and Basic Green 4 are the names of some basic dyes. The names of the basic dyes just provide the functional and color information about the dye and do not convey any information related to the chemical properties of the dye. It is also important to understand that dyes having unique names but similar numbers are not related in any manner. For example, it is wrong to assume that basic Brown 4 and basic Violet 4 are related in any manner.


The colored part of a basic dye exhibits a positive charge, when the dye is dissolved in water. They are generally very bright and washfast hence are largely used to dye acrylic fibers. However, they are not sufficiently washfast to prove as good dying agents for protein fibers such as wool. Moreover, in order to make them bind with cotton fiber, the fiber first needs to be mordanted as otherwise the dye tends to fade quickly when exposed to sunlight. The natural tannin content of reeds, raffia, grasses and barks acts as a mordant making it possible to use basic dyes efficiently with these materials.


Like most other dyes, basic dyes are also toxic in nature and need to be handled with extreme care. It is vital to follow all the safety precautions and obtain the MSDS information before purchasing any type of basic dye. Although most companies supplying basic dyes readily provide the MSDS information, it is advisable not to purchase these dyes from those few companies that are not willing to give this information as it can prove extremely hazardous to the health and safety of the buyers. It is also advisable to buy these dyes in liquid or paste form, whenever possible.


Royce is a fully diversified international company which was founded in 1929 to manufacture chemicals for textile industry. Today more than 80 years later, they have a resounding presence across the world and offer solution to diverse needs of chemicals to their customers which also include basic dye. For detailed information, logon to http://www.royceintl.com