What color is the plastic?
Specifically in the plastics sector, considering the increasing complexity of the market, the choice and development of ideal colors involves more complex aspects than those traditionally considered, such as aesthetics and psychological effects.
Obtaining a color includes the coordination of several elements, such as the use of the part, tolerance levels, resin used, processing temperature, atoxicity and others.
For the successful development of color and other products to be conducted economically and efficiently, there needs to be a great deal of interaction between the customer and the raw material supplier.
There are several techniques for coloring thermoplastic resins: among them, concentrates or masterbatches stand out because they offer many advantages to the processors who use them. Despite the simplicity of use, the concentrates have complex compositions of colorants and/or additives, which obey rigid criteria in their selection and incorporation. To begin the discussion on masterbatches, we must address three basic concepts:
Colorants for plastics and resins
The most technologically advanced companies are able to concentrate 50 to 80% pigment in a concentrate. The color concentrates also have additive colors and effects including the following:
Intense colors for plastic containers such as orange, yellow, red require pigments with high temperature resistance, these striking shades are often very economical if they contain heavy metals, which represents a health risk if they are intended to have contact with food or skin. Other applications are safe.
On the market, there are no masterbatches based on biodegradable plastics or with natural components. On the other hand, at the research level, some actions are being observed that are at a very advanced stage.
The color concentrate should have an application rate of between 0.5 – 5% in average uses to produce plastic containers. In other words: 100% polymer will use on average 3% of color concentrate.
It should be noted that the amount of color concentrate should not be exceeded since it has a much higher cost than the polymer, if you want to modify the tone is better to talk to your raw material supplier.
Homemade plastic hydrator
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If there is a color that encloses mystery and elegance, that is black. They say that in the closet can not miss at least one garment of this color. The truth is that the intense black is also a hair color trend season after season and a hair color that sweeps.
So if you are, like me, a lover of intense black hair, but in order to keep it you have abused commercial dyes and your mane has been mistreated, due to the contained dose of chemicals in the dyes, today we have very good news…
Pour 3 tablespoons of hair conditioner into the mold, add the gentian violet (half of the bottle), the 3 tablespoons of black vegetable dye and stir thoroughly until you get a thick consistency dye, but free of lumps.
How to revive the color of plastics
Nowadays, it is common to order the vehicle’s plastic trims painted from the factory. However, certain ranges and series integrate some plastic elements, such as door moldings or window trims, uncoated. These plastics are deep black in color and usually have a textured finish.
Thus, the black plastics lose their intense and eye-catching color, which becomes an uneven and dull whitish black, while the transparent optics yellow and lose transparency. This deterioration is caused by these three factors:
When using any of these products, it is advisable to disassemble the affected plastic, as this makes it easier to sand and beautify it. If this is not done, it will be necessary to mask and protect the adjacent areas and components. In addition, the necessary risk prevention measures must always be observed.
To apply a stain it is necessary to clean the plastic well and degrease it and then apply the product with a sponge making longitudinal passes that cover the entire length of the part. It is not necessary to sand the piece, although it is recommended.