earticle

영어

This study aims to improve the condition of damaged hair by increasing the protein content of hair through the development of a hair treatment product that fundamentally restores damaged hair, rather than traditional hair treatment products, which temporarily provide a soft touch using silicone and oil. The protein content of hair was quantitatively analyzed using the Semimicro-Kjeldahl method, in which a hair sample is digested with sulfuric acid to determine the crude protein content (%). As a result of bleaching, perming, and dyeing, the weight and protein content of the hair decreased by 15-24%. This result confirmed that hair damage occurs when hair is chemically treated. In this study, in order to verify the improvement effect of the developed product on damaged hair, the developed product and two commercially available products were treated one, three, and five times on hair damaged by bleaching, hair perm, and dyeing, respectively, and then protein content and hair weight were measured. Unlike commercially available products, the protein content and weight of hair treated with K-30, developed in this study, increased by about 20% compared to the damaged hair. From these results, it was confirmed that when damaged hair was treated with K-30, both protein content and hair weight were restored to levels similar to healthy hair.

중국어

本研究旨在于研发出能够替代传统用硅油等短时提供柔软触感的护发产品, 从根本上恢复受 损毛发的护发产品, 以提高毛发蛋白质含量, 改善受损毛发. 本研究中的毛发蛋白质含量用 半微天平(Semimicro Kjeldahl) 方法进行定量分析, 即将毛发样品分解成硫酸, 并取出粗蛋 白质含量(%). 研究结果发现, 对标准毛发进行脱色, 烫发, 染色后, 毛发重量和蛋白质含量 减少了15-24%. 通过这一结果可以看出, 对头发进行化学处理会对头发造成损伤. 为了验证 研发产品对改善受损毛发的效果, 本研究对脱色, 烫发, 染色受损的毛发分别进行了1, 3, 5 次护理后, 测定了研发产品和市售产品的蛋白质含量和毛发重量. 结果显示, 与市售产品不同, 用研发产品K-30处理后的毛发蛋白质含量和毛发重量比脱色, 烫发, 染色损伤的毛发增 加了20%左右, 达到了损伤前的毛发质量. 由此推断, 若对受损毛发进行K-30处理, 毛发蛋 白质含量和毛发重量都能恢复到与受损前的健康毛发相似程度.