You probably recognize it: your white and black laundry has gone dull. Colors no longer stand out as nicely as when your clothes were new. Over time your clothes do get duller, but you can slow this down by using detergent or laundry sheets specially for black or white laundry.
Why does laundry go dull?
After every wash the fibers of your clothes fall and get damaged. Dirt sticks to these fibers more easily because they become coarse. This creates an extra layer that makes your laundry look dull. Cellulase is an enzyme and can locate and remove these particles effectively. That way the fibers become "smoother" again and colors come out better.
Another type of cellulase protects the colors. Here too, colored cotton fabrics become dull and grayish. The fibers and the dirt that sticks to them mask the brightness of the colors.
Our laundry sheets for white laundry therefore contain 2 types of cellulase and a small amount of optical brightener to keep your laundry white/colored/black for longer.
This is not in our universal detergent sheets.
Are your universal sheets not enough then?
Another reason for dullness is the use of aggressive chemicals. Because our formula is mild and plant-based, there is less dullness from these chemicals. That is why we call them universal laundry sheets.
But because there are several ways to protect color, these have been added for laundry sheets specifically for white and black laundry. That is why the laundry sheets for black and white laundry are better for keeping white and black longer.
Allergies
Some people are allergic to optical brighteners, in that case we recommend our universal sheets or our hypoallergenic fragrance-free variant.
What is the difference between the laundry sheets for black/white and the color boosters for black/white?
The color boosters do not fully dissolve. They have one function, and that is to transfer black or blue color to your laundry. White color boosters have more optical brighteners than the laundry sheets. With the color boosters you not only keep your color longer, you also boost it. White becomes whiter, black blacker, and blue bluer.
Because we have laundry-sheet production machines in-house, we know exactly how to recreate lab formulas in both the mix, homogenization, and drying process.
Hopefully this gives you more insight into how color protection works and that it is not a "marketing tactic". We keep improving our formulas in our own local lab in the Netherlands.
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