Optical Brightener CBS-X 351 is an important additive in washing powder，RAYTOP has the same Tinopal CBS-X. In the high-end washing powder, the whitening agent is indispensable, and the added amount is relatively high. In the washing powder system, the whitening agent has two main functions.In one aspect, one is to whiten the powder itself, and the other is to whiten the fabric.
Optical Brightener CBS-X 351 is an important additive in washing powder，RAYTOP has the same Tinopal CBS-X. In the high-end washing powder, the whitening agent is indispensable, and the added amount is relatively high. In the washing powder system, the whitening agent has two main functions.In one aspect, one is to whiten the powder itself, and the other is to whiten the fabric.
The number of washes improves the whitening effect
As the content of cbs-x optical brightener increases, the whiteness value shows an upward trend. When the cbs-x optical brightener reaches a
certain level, increase the washing times, the whitening performance will change, and the washing whiteness will no longer increase or
increase slowly.This is because the cbs-x optical brightener has a certain amount of adsorption on the pure cotton cloth. When the
content of the cbs-x optical brightener in the washing solution is low, as the washing times increase, the cbs-x optical brightener accumulates
and adsorbs on the pure cotton cloth, and when it reaches a dynamic equilibrium Time,
If you increase the number of washes, it has no obvious effect on the improvement of whiteness.
Product Name | Optical Brightening Agent CBS-X Powder & Granular |
CAS No. | 27344-41-8 |
C.I. No. | 351 |
Molecular Formula | C28H20S2O6Na2 |
Appearance | Greenish yellow powder or granules |
E-value | 1140 |
Main Chemical Composition | Stilbene derivative |
Properties | 1.Detergent(powder and paste form): 0.04-0.2%
2.liquid detergent: 0.2-0.5% |
Uses | Can be used as brightener for detergent, cotton, linen, silk, polyamide fiber, wool and paper . It can be added to any process of any type of detergent. |
Package | 25kg per fiber drum |
CBS-X powder 351 optical brightener application:
The washing special optical brightener is suitable for washing products of various dosage forms, such as washing powder, washing cream and liquid detergent. Optical brightener cbs-x powder is especially suitable for high-end washing industry
CBS-X powder 351 optical brightener Dosage:
When used CBS-X powder 351, it can be added in any process of all types of detergent production, such as dry mixing, spray drying, agglomeration molding and spray mixing, etc. The dosage is generally 0.1% to 0.5%.
CBS-X powder 351 optical brightener Precautions:
Pls make sure to avoide the ligt when you oopen the drum during use it.
CBS-X powder 351 optical brightener raw material supply situation:
China currently has 4 D acid production enterprises with an annual output of 30,000 tons, 5,000 tons, 5,000 tons, and 5,000 tons respectively. The current annual global demand for DSD acid is 60,000 tons. China's total output is 45,000 tons, with the remaining 15,000 tons are concentrated in India.
Usage and Dosage of Optical Brightener CBS-X in Laundry Powder and Liquid Detergents
1. Application in Laundry Powder
Dosage: 0.01% to 0.1% (100 to 1000 ppm) based on the total weight of the detergent formula.
Usage: CBS-X, also known as fluorescent whitening agent, optical brightening agent, or laundry brightener, is added during the dry blending or spray drying process. It should be mixed evenly to ensure enhanced whiteness and brightness in the final product.
2. Application in Liquid Detergents
Dosage: 0.01% to 0.05% (100 to 500 ppm) based on the total weight of the liquid detergent formula.
Usage: This high-performance brightening agent dissolves easily in water and should be added during the cold blending process. It remains stable in liquid detergent formulations, including high-efficiency (HE) detergents, eco-friendly laundry detergents, and concentrated liquid detergents. It is recommended to add CBS-X at temperatures below 50°C to prevent degradation.
3. Precautions for Manufacturers
pH Stability: CBS-X performs best in a neutral to alkaline pH range (7-11), making it ideal for enzyme-based detergents and high-foam detergents. Avoid exposure to strong acids.
Temperature Sensitivity: For liquid detergents, add at a temperature below 50°C to maintain stability and effectiveness.
Compatibility: Works well with anionic surfactants and non-ionic surfactants, commonly found in laundry detergents, fabric softeners, and stain removers. However, compatibility should be tested in cationic-heavy formulations.
Storage: Store in a cool, dry place, away from direct sunlight and moisture to prevent degradation.
CBS-X is widely used in high-performance laundry detergents, whitening laundry boosters, and color-safe bleach formulas due to its excellent whitening power, high solubility, and strong stability in both powder and liquid detergent formulations.
Differences Between Optical Brightener CBS X Powder and Granules in Production and Application
1 Production Process Differences
Powder form CBS X is produced through fine grinding resulting in a high surface area and fast dissolution It is lightweight and may generate dust during handling which requires proper dust control measures
Granular form CBS X is processed into uniform granules to reduce dust improve flowability and enhance dispersion in detergent formulations It is designed for better handling and reduced loss during production
2 Application Differences
Powder form dissolves quickly making it suitable for fast mixing in liquid detergent formulations and spray drying in powder detergents It is commonly used in high efficiency laundry detergents stain removers and whitening laundry boosters
Granular form is dust free and easier to handle making it ideal for bulk production in large scale detergent factories It provides better uniformity in detergent powder blending and is widely used in concentrated laundry detergents industrial detergent powders and eco friendly detergent formulations
3 Storage and Stability
Powder form should be stored in a sealed container to prevent moisture absorption and dust contamination It is more sensitive to humidity and requires controlled storage conditions
Granular form has better resistance to moisture and improved stability in storage making it suitable for regions with high humidity like South America and Africa
4 Suitability for Different Markets
Powder form is widely used in liquid detergents fabric brighteners color safe bleach formulations and stain removing detergent powders It is popular in markets that prioritize high solubility fast dissolution and whitening performance
Granular form is preferred by manufacturers looking for better handling reduced dust improved storage stability and ease of bulk production It is suitable for large scale detergent brands in South America and Africa where logistics and storage conditions require enhanced stability
CBS X in both forms is an effective fluorescent whitening agent optical brightener and detergent enhancer used in laundry detergents stain removers fabric care products and industrial cleaning formulations for achieving bright white laundry and enhanced stain removal performance
