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.

Are Epoxy Resins Flooring Really As Expensive As They Are Made Out To Be

Most people stick to conventional material and designs as suggested by their architect when constructing a house. They tend to appreciate contemporary building material like epoxy resins flooring but, assuming that it is way too expensive, doesn’t get it for their homes. You can partly blame the dazzling looks and durability of such flooring for this misconception. But I suspect the bigger culprit is the ignorance about this relatively new flooring option and those individuals or companies who stand to profit from perpetuating this fallacy.

Epoxy flooring is not just resistant to mechanical shocks and scratching but also to all kind of household chemicals as well. Strong and durable, these floors are easy to clean and maintain. Since the characteristics of epoxy resin systems can be changed to suit the specific needs of the user, their advantages are not redistricted to their attractive looks. In fact, a good manufacturer can easily provide epoxy flooring for domestic areas as easily as commercial or industrial usage which would last for years despite high traffic and dogged cleaning routine.


Epoxy Terrazzo flooring can match the best marble and granite flooring in looks and yet comes at a fraction of its price. If you need flooring for a large area, Terrazzo flooring can get you the same fabulous looking floor at much less. If done correctly with high quality epoxy resins, these floors can last for more than 50 years.


Even those places where looks are not the prime issue such as garages, basements, laundry rooms, store rooms etc. epoxy flooring offers the best options. People usually ignore those spaces as they remain hidden from visitors. These are not the places where they want to spend much money also but what they don’t realise is the fact that these places are not only high traffic areas but also their floors take maximum battering. The flooring of these areas especially garage and footpath around pool get damaged before any other area of the house because people usually choose cheapest flooring options that “doesn’t look too bad” for these spaces. However, getting new floor covering for these areas after a few years only may be an expensive option.


Epoxy floor covering not only offers some great designs but also strong and durable flooring option for all such places. What’s more, this floor covering can be laid on existing old floors which save both time and money. Now, do you still think that epoxy resins floor covering is expensive?


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 epoxy resin.