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How to Choose an Optical Brightener for Liquid and Powder Detergents
Optical brighteners are widely used in laundry detergents to help maintain the bright, clean appearance of white and light-colored fabrics. However, selecting an optical brightener for a liquid detergent is not exactly the same as selecting one for a powder detergent. The detergent format, concen...Read more -
How to Choose an Optical Brightener for Paints, Coatings and Printing Inks
Optical brighteners can be used in paints, coatings and printing inks to improve visual whiteness, compensate for unwanted yellow tones and enhance the brilliance of white or light-colored systems. However, choosing a suitable optical brightener involves more than simply comparing fluorescence st...Read more -
Disulfonated vs Tetrasulfonated vs Hexasulfonated Optical Brighteners for Paper
When selecting an optical brightener for papermaking, customers often compare products according to concentration, whiteness performance and price. However, another important technical factor is the degree of sulfonation. Many common stilbene-based optical brighteners used in the paper industry c...Read more -
How to Choose an Optical Brightener for Paper: Pulp, Size Press or Coating?
Optical brighteners are widely used in papermaking to improve paper whiteness and brightness. However, selecting a suitable optical brightener is not simply a matter of choosing the product with the highest whitening strength. One of the most important questions is: Where will the optical bright...Read more -
How to Choose an Optical Brightener for Cotton and Cellulosic Fibers
Optical brighteners are widely used to improve the whiteness and brightness of cotton and other cellulosic textiles. However, different optical brighteners can behave very differently on the same fabric. The most suitable grade should not be selected only according to maximum whiteness. Factors s...Read more -
How to Choose an Optical Brightener for Polyester and Synthetic Fibers
Optical brighteners are widely used in polyester and other synthetic fibers to improve whiteness, brightness and the visual appearance of finished textiles. However, selecting a suitable optical brightener is not simply a matter of choosing the product with the strongest fluorescence. Different t...Read more -
Optical Brighteners for Recycled Plastics: How to Improve Whiteness
Recycled plastics often present greater color challenges than virgin materials. Depending on the source and processing history, recycled polymers may appear: Yellowish Gray Dull Inconsistent in color Less bright than virgin resin For manufacturers producing white or ligh...Read more -
Why Do Optical Brighteners Migrate or Bloom in Plastics?
Optical brighteners are normally used at very low addition levels, but in some plastic formulations manufacturers may encounter problems such as: Surface blooming Migration Uneven fluorescence Blue spots Powder-like deposits Changes in surface appearance These problems do not necessarily mean tha...Read more -
Optical Brightener vs Titanium Dioxide: What Is the Difference in Plastic Whitening?
When manufacturers want to produce whiter and brighter plastic products, two additives are often discussed: Optical Brighteners and Titanium Dioxide (TiO₂). Both can improve the appearance of white or light-colored plastics, but they work in very different ways. Titanium dioxide is primarily a w...Read more -
How Much Optical Brightener Should Be Added to Plastics?
One of the most common questions in plastic whitening is: How much optical brightener should be added? There is no single dosage that works for every plastic. The required amount depends on the polymer type, optical brightener grade, initial color, pigmentation, product thickness, processing cond...Read more -
Why Do Plastics Turn Yellow? How Optical Brighteners Improve Whiteness
Yellowing is a common appearance problem in plastic production. Some plastics already have a slight yellow tone before processing, while others develop yellowing during extrusion, injection molding, repeated processing or long-term use. When this happens, simply increasing the amount of optical b...Read more -
KCB vs KSN vs OB-1: Which Optical Brightener Is Better for Plastics?
Optical Brightener KCB, KSN and OB-1 are widely used to improve the whiteness and brightness of plastic products. However, these three grades are not interchangeable in every application. Their suitability can vary depending on the polymer type, processing temperature, required white shade, dispe...Read more