漂亮染发:请美发师帮忙

在欧洲,大部分妇女染发都是在发廊里由专业美发师完成的,而现在我国染发的大众消费习惯类似于美国人,买回染发剂在家里染发,这也就体现出一种观念——对时尚有强烈的追求,对染发效果没有很高的要求。     

美国发明石墨稀制染发剂

正很多女性喜欢染发,染发的过程在本质上是,氨碱性条件打开毛鳞片,氧化剂进入头发内部,发生一个氧化还原反应产生颜色,或多或少会对头发产生危害。而石墨烯又在染发剂方面立功了,美国科学家们用它创造出了一种染发剂,比普通染发剂的伤害要小得多。     

天然植物染发剂与化学合成染发剂染发后稳定性的对比研究

为消费者选择染发产品提供参考,比较了几种天然植物染发剂与化学合成染发剂染发后的稳定性,评价染色效果。具体采用5款染发剂对相同质量的头发进行染色,用洗涤液将染后头发洗涤7次,采用紫外分光光度法,测定洗涤液的吸光度,对比染发剂的染发效果,综合评价5款染发剂染发后的稳定性。结果发现,在相同条件下,化学染发剂芯美斯染发效果最佳,4种天然染发剂中,市售海娜粉染发剂和天然色素茜草加金属铁离子制备的染发剂染发效果相对较好,表明化学染发剂染发效果优于天然植物染发剂。     

2018—2019年染发类化妆品质量安全状况分析

通过研究2018—2019年我国染发类化妆品监督抽检结果以及注册情况,分析我国染发类化妆品质量安全总体情况.监督抽检结果表明:染发类化妆品中添加禁用物质或者超限量使用染发剂的情况较少,但是擅自更改配方的问题较为严重.对染发类产品注册情况分析表明,在1773件染发类产品中使用的染发剂共有54种;为满足不同消费需求,染发剂...     

谈染发产品现状与发展趋势

根据颜色持续的时间长短，染发剂可以分为三类：暂时性染发剂，半永久性染剂，永久性染发剂。按照剂型染发剂可分为：乳膏型，凝胶型，染发香波，粉剂，染发摩丝等。现今市售染发产品种类繁多，其中主导位置的是以氧化染料为主要染色成分的永久性染发剂，尤其在我国市场上。本文重点探讨永久性染发产品。     

南昌大学研制成功单剂型染发品

自从染发剂问世以来 ,国内外厂家都无法突破把Ａ、Ｂ两支混合使用的方法。前不久 ,南昌大学专业从事染发产品研制开发的科研人员研制成功具有我国自主知识产权的单剂型染发品———佳宝黑发霜。并由国家高新技术企业南昌江南化工厂投入生产。南昌大学研制成功、南昌江南化工厂生产的单剂型染发品———佳宝黑发霜不用铅原料配制 ,避免了对人体的伤害 ;用它染发不需另加氧化剂 ,因而不存在皮肤的刺激反应 ;该产品加入了中草药 ,对头发有良好的养护作用南昌大学研制成功单剂型染发品@沈镇平     

让民众享受染发剂的科技进步

简述了传统的对苯二胺氧化染发剂的危害性,指出了无氨染发剂、无过敏染发剂和天然植物染发剂是染发产品的科技创新和科技进步。为发展和振兴中国染发剂工业提供最新的动态和信息。     

多功能抗衰老生物制剂——天来可 GL

20世纪90年代是中国染发剂生产呈现高速发展的时期，染发化妆品已成为了发用化妆品中发展最快的品种。1998年，中国批准生产染发品的厂商有180多家，其品牌近200种。目前中国的染发产品消费群有两大类，一类是以中老年人为主，他们使用黑色染发剂将白色、花白头发染成黑色，旨在返老还童；另一类是以年轻人为主的黑发消费群，他们使用不同品牌的彩色染发剂，将传统的黑发漂染成咖啡色、棕色和金色，旨在突破传统。21世纪将进入老龄化社会，随着银     

红棕色染发剂染发后稳定性的研究

通过对红棕色染发剂配方的调制，用分光光度计法考察了不同组分及条件对染发剂染发后的稳定性的影响，为选择更稳定的染发剂提供了有益参考。     

非对苯二胺染发剂合成的研究进展

概述了3类非对苯二胺染发剂的作用原理、合成方法及其染发效果。其中植物色素染发剂详细介绍了散沫花色素、姜黄素、槲皮素和苏木精;苯胺类衍生物染发剂主要介绍了2,5-二氨基苯乙醇、β-(2,4-二氨基苯氧基)-乙醇盐酸盐、N,N-双-(2-羟乙基)-对苯二胺;其他化学合成染发剂介绍了染色硅胶纳米粒子、含巯基染发剂和天然黑色素制备的染发剂。简单总结了各种合成路线的优缺点,并对染发剂的开发和应用前景进行了展望。     

Influence of urea on the coloring ability of a low‐temperature coloring method of keratin fibers using polyethyleneimine

For the purpose of improving the coloring ability of keratin fibers at a lower temperature, we investigated the influence of urea on the coloring ability of a low‐temperature coloring method using polyethyleneimine (PEI) as a counter ion reagent (the human hair was previously treated with a PEI solution, and then was colored with acid dye). The coloring and color fastness to shampooing of the hair pretreated with a PEI solution containing urea clearly improved compared with those pretreated with a PEI solution not containing urea. Also, we prepared cross‐sectional samples of the treated hair and investigated the penetration of PEI and Orange II into human hair by optical microscopy. The results showed that the penetration of PEI and Orange II into human hair pretreated with a PEI solution that contained urea clearly increased compared with those pretreated with a PEI solution that did not contain urea. From these experiments, we concluded that urea acts as a penetration accelerator for PEI; and PEI, which penetrates deeper into human hair by adding urea, exerts counter ionization on Orange II, thus increasing the penetration of Orange II into human hair and thereby improving the coloring ability. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 91: 3827–3834, 2004     

New method of dyeing keratin fibers using poly(ethylene imine) and its coloring mechanism

To improve the colorability of keratin fibers at lower temperatures, we developed a novel coloring method using poly(ethylene imine) (PEI) as a counterion reagent (human hair was treated beforehand with a PEI solution and then was colored with an acid dye). As a result of this new method, the coloring and color fastness to shampooing clearly improved with respect to the usual method. Next, to study the coloring mechanism with PEI, we investigated the penetration of PEI and Orange II into bleached human hair by optical microscopy. The results showed that the penetration of PEI and Orange II into bleached human hair increased with an increasing PEI treatment time and with a decreasing PEI molecular weight. With these experiments, we demonstrated that PEI, which penetrated the cortex region, exerted counterionization on Orange II, thereby increasing the penetration of Orange II into bleached human hair. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 90: 3806–3810, 2003     

天然植物染发剂

主要就染发剂的市场及其历史发展趋势进行了阐述,并对天然植物染发剂的研究现状进行了系统总结与分析,以期为天然植物染发剂的进一步发展提供一定的借鉴意义。     

铝及其合金着色技术的研究进展

传统的铝及其合金着色技术主要包括化学染色法、整体染色法和电解着色法，新型的铝及其合金着色技术主要包括化学转化膜技术、电泳技术、微弧氧化陶瓷成膜技术、粉末静电喷涂技术。针对着色技术现存的主要问题，简述了铝及其合金着色技术的研究现状，包括电解着色机理，耐久性染料、新型稳定剂、特殊电源、多色化工艺的开发等，并展望了今后的研究趋势与发展方向。     

Zur Problematik des Blondierens menschlicher Haare

Problems Concerning Bleaching of Human Hair The bleaching of human hair using alkaline hydrogen peroxide involves a chemical change of the coloring pigments eumelanin and pheomelanin – the bleaching proper – as well as a chemical effect on the keratinous material – i. e. hair damage. The oxidation by alkaline hydrogen peroxide may proceed by different mechanisms and via different intermediates. It is discussed whether the reactions leading to bleaching or hair damage, respectively, show preferences for particular mechanisms of hydrogen peroxide decomposition.     

Structure and performance of cationic assembly dispersed in amphoteric surfactants solution as a shampoo for hair damaged by coloring

In recent years, hair coloring gains popularity as a trend of consumer's hair care. This coloring frequently damages hair. In response to this, a new shampoo-base was developed for repairing hair damaged by coloring. The new shampoo-base was prepared by dispersing cationic assembly in a solution of amphoteric surfactants. The mixture of behenyl trimethyl ammonium chloride (C22TAC) and behenyl alcohol (C22OH) was applied as the cationic assembly, which are dispersed in amido propyl betaine laurate (LPB) solution. LPB, which behaves as an amphoteric surfactant, was used as the wash-base. It was verified from the results on the measurements of DSC, calorimeter polarization, cryo-SEM and X-ray diffraction that the cationic assembly has a crystalline structure in the LPB solution. The new shampoo-base was highly efficient to change the color-damaged hair from hydrophilic to hydrophobic. The friction level of the hair washed with the new shampoo-base recovered to the same state as that of healthy hair. The exfoliation of cuticle was reduced after washing with the new shampoo-base.     

PRB技术处理重金属污染地下水的研究综述

地下水是人类宝贵的淡水资源,然而随着现代社会工业化进程的不断发展和人类活动的急剧增加,污染程度也不断加重,这将对人类健康和社会发展造成极大危害,因此必须要研究出行之有效的治理方法,以达到最佳的地下水污染修复。该文在大量搜集国内外地下水重金属污染修复技术研究资料的基础上,针对性的对可渗透反应墙(PRB)技术的概念、原理、活性材料的选取、结构类型、国内外应用实例进行了总结,并提出了目前PRB技术存在的问题及前景展望。     

彩色水性聚氨酯乳液的研究

论述了水性颜料与彩色水性聚氨酯乳液的制备,研究了颜料的加入对水性聚氨酯性能的影响,比较了不同分散剂对颜料分散稳定性作用的差异,同时探讨了分散剂和增稠剂的作用原理。