In recent years, due to the vigorous development of the African market by international cosmetics companies and the awakening and strengthening of Africans’ beauty-consciousness, the demand for the African cosmetics market is growing rapidly and the market potential is huge. As the African continent is generally hot and dry, the skin is prone to loss of moisture, moisturizers, emollient oils, bath lotions and soaps are all popular. Africans also like to wear lipstick, nail polish, and strong perfume.
Therefore, daily necessities and cosmetics have great potential in the African market, and South Africa, as a strong commercial re-export country, is bound to be the only place through which daily chemical products are exported to Africa.
For the optical brightener used in the washing industry, we mainly recommend the optical brightener FB 351 and 71, the models are Optical brightener CBS-X, CXT, DMS, AMS.
Below we mainly introduce the characteristics of the optical brightener FB CBS-X 351.
Performance characteristics of optical brightener FB CBS-X 351:
Appearance: yellow-green crystalline powder/granule
Shade: blue to red light
1% extinction coefficient: 1140
Physical and chemical properties: soluble in water, insoluble in chlorinated hydrogen, but can be dispersed in it
The maximum absorption wavelength of the spectrum is 349nm, resistant to acid, alkali, sodium hypochlorite and peroxide
Advantages of optical brightener FB CBS-X 351:
The best use temperature of optical brightener CBS-X is 10~60℃, soluble in warm water 20 times its own mass, and has a good whitening effect at lower or higher temperatures, in a short time The fabric can reach a high degree of whiteness inside. The detergent containing the optical brightener FB CBS-X has little loss of the optical brightener during the washing process, and the cumulative washing whiteness is high. After repeated washing, the fabric will not turn yellow. Or turn green and easily biodegradable. It is precisely because of these advantages of the optical brightener FB CBS-X that it has become the best and most competitive variety currently recognized.
The main performance characteristics of optical brightener FB CBS-X 351 are:
1. It has a high-efficiency whitening effect on cellulose fibers in cold water and warm water;
2. Repeated washing will not make the fabric yellow or change color;
3. Excellent stability in super-concentrated liquid detergents and heavy-duty fluid detergents;
4. Excellent resistance to chlorine bleaching, oxygen bleaching, strong acid and strong alkali;
5. No toxic side effects.
Scope of application of optical brightener FB CBS-X 351:
Because the fluorescent brightener CBS-X does not contain chlorine in its molecule, it has high stability to acid, alkali, sodium hypochlorite and peroxide, good color fastness, and greater solubility at low temperatures, so it can It is widely used in washing powder, washing cream, liquid detergent, soap, fabric softener and finishing agent. When used, 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 addition amount is generally 0.1% to 0.5%
Comparison of Optical Brightener CBS-X and Optical Brightener 71 in the Detergent Industry
| Feature | Optical Brightener CBS-X | Optical Brightener 71 |
|---|---|---|
| Suitable End Products | Laundry powder detergents, liquid laundry detergents, stain removers, fabric softeners, industrial detergents | Heavy-duty laundry detergents, industrial detergents, commercial laundry detergents, fabric bleaching agents |
| Solubility | Highly soluble in water, suitable for both powder and liquid detergents | Moderate solubility, mainly used in powder and industrial detergent applications |
| Whitening Efficiency | Excellent at low dosages, providing bright white effects | Strong whitening power, effective even in heavy-duty and industrial washing |
| Dosage in Powder Detergents | 0.01% - 0.1% (100 - 1000 ppm) | 0.02% - 0.15% (200 - 1500 ppm) |
| Dosage in Liquid Detergents | 0.01% - 0.05% (100 - 500 ppm) | 0.01% - 0.08% (100 - 800 ppm) |
| Stability | Highly stable in a wide pH range (7-11) and resistant to high temperatures | More effective in high-temperature washing processes and industrial applications |
| Affinity to Fabrics | Works well with most fabric types but mainly enhances detergent performance | Strong affinity to fabrics, especially in commercial textile washing |
| Best for High-Temperature Washing | Performs well but mainly used in household and standard laundry detergents | Ideal for industrial washing processes that require high-temperature stability |
| Application Method | Added during detergent formulation (dry blending, spray drying, or liquid blending) | Used in industrial detergents and textile pre-treatment chemicals |
Key Takeaways:
CBS-X is ideal for household detergents, liquid laundry formulas, and fabric softeners, thanks to its high solubility and effectiveness at low dosages.
Optical Brightener 71 is more suitable for industrial detergents, commercial laundry applications, and high-temperature washing, due to its strong fabric affinity and performance under harsh conditions.
