防止头发褪色和头皮损伤的新型紫外线过滤剂

A new UV filter to protect hair from color fading and integrity damaging

介绍了禾大公司新开发出的一种防止头发褪色和头皮损伤的新型紫外线过滤剂Chromaveil,并介绍了该产品在香波、护发素以及头发免洗产品中的应用。Chromaveil具有广泛的紫外线吸收光谱,吸收范围为250 nm～350 nm,峰值为310 nm,在波长为310 nm时的消光系数为38.47 L(/g.cm)。由于Chromaveil的正电荷作用,在冲洗产品中能很好地沉积在头发表面。经测试证明,Chromaveil具有很好的护色效果,可对头发表面的色氨酸、抗张力强度和表皮完整性提供很好的紫外线保护作用。

A new UV filter to protect hair from color fading and integrity damage Chromaveil developed by Croda was introduced, and also the application of Chromaveil in shampoo, conditioner as well as in leave-in products was also reviewed. Chromaveil has a broad UV absorption spectrum from 250 nm （below UV- B）to 350 nm （UV-A）, and its peak position is at 310 nm（UV-B）. Its specific extinction coefficient was determined as 38.47 L / （g·cm）at the wavelength of 310 nm. Chromaveil delivered from rinse-off systems demonstrated good deposition on treated hair surface since it is a conditioning agent with positive charge on the molecule. Objective measurements indicated that Chromaveil showed good color protection on dyed hair, and also provided good UV protection on surface tryptophan, tensile strength, and surface cuticle integrity.