Colorant
A colorant is a substance that imparts various colors and modifies the appearance of surfaces, such as
gloss, matte,or transparency. Colorants can be sourced from nature or synthesized. Typically, they exist in
solid form known as pigments, whichcanbe classified into two chemical groups: organic pigments and
inorganic pigments.
Types of Pigments
1. OrganicPigments
Originating from petro chemicals,organic pigments provide bright colors and have good
lightfastness. They are poorly soluble insolvents but are highly safe and chemically stable.
2. InorganicPigments
Sourced from inorganic compounds, inorganic pigments are opaque and have excellent
lightfastness. They are insoluble insolvents and have lower safetyand chemical stability.
When using pigment concentrates,users must consider the application and production process, as these concentrates will be used with the resin of each product, which has different curing processes for film formation. Choosing the wrong type of raw material can adversely affect product processing.For example, a high pigment concentrate intended for silicone must be mixed with silicone resin and cannot be used with other types of resin due to the chemical reaction needed for curing. Additionally, the color intensity is an important factor; for products requiring high color strength, users should opt for high pigment concentrates, as these allow for smaller quantities to be added while achieving the desired color intensity
Pigment Concentrate
This raw material is created by mixing pigments with solvents and additives to facilitate ease of
use, resulting in either liquid or paste forms. The key factors in producing pigment concentrates include
the type of solvent and the quantity that can be added to the system, as the pigment must be wetted by the
solvent, which acts as a carrier. It’s crucial to select a solvent compatible with the pigments, as this relates
tothe quantity of pigment that can be incorporated.
When using pigment concentrates,users must consider the application and production process, as
these concentrates will be used withthe resin of each product, which has different curing processes for
film formation. Choosing the wrong type of raw material canadversely affect product processing.For
example, a highpigment concentrate intendedfor silicone must be mixed with silicone resin and cannot be
used with other types of resin due to the chemical reaction needed for curing.
Additionally, the color intensity is an important factor; for products requiring high color strength, users
should opt for high pigment concentrates, as these allow for smaller quantities to be added while achieving
the desired color intensity