防晒化妆品基质配方的新进展

防晒化妆品的基质对产品的性能有重要的影响。例如,如果装在透明瓶子里,防晒剂甲氧基肉桂酸辛酯(0MC)就会使防晒产品变成鲜黄色;含有磺酸苯基苯并咪唑的防晒产品中如果其PH值低于7,就会形成长长的针状晶体。     

个人洗护用品配方原理及应用技术(Ⅲ)--防晒护肤品配方原理及应用

从紫外线防护、防晒剂的种类及应用和防晒产品的效果评价等方面,讨论了紫外线吸收剂应用于稳定有效的防晒化妆品的开发和配方制作时的相关注意要点。     

高防晒指数防晒产品安全性研究探讨

根据影响防晒产品安全性的部分因素分析 ,提出将有机防晒剂与一定粒径的物理防晒剂复配可以制得安全性高、防晒效果好的防晒产品的观点。实验中研制的防晒产品 ,测得最高防晒指数 (即SPF值 )为 45 ;此外 ,SPF值为 45的研制产品 ,安全性指标测试显示安全性高 ,并于 1999年 5月取得卫生部颁发的特殊化妆品生产许可证批文     

2008年防晒产品热销

夏天的防晒品走俏得一塌糊涂,无论是专业防晒品,还是带SPF的隔离霜和粉饼都成了香饽饽。防晒品的SPF指数不约而同地飙到了极致,但始终清爽无负担的好印象,让女人再也无法保持买单的矜持。     

纳米材料提高防晒用品SPF值及其配方的研究

依据太阳光中UVB和UVA射线的辐射特征,研究了防晒剂的用量、纳米ZnO和TiO2作为紫外线散射线、有机防晒剂和无机防晒剂的复配使用等因素对防晒体系SPF值的影响,特别是纳米ZnO和TiO2的使用对UVA有明显的屏蔽效果,为提高防晒化妆品的宽频防晒性能提供了依据.并设计了既防UVB射线又防UVA射线的防晒化妆品配方及其工艺.     

防晒用品发展的新动向

回顾了防晒品最新的发展情况，介绍了近10年来防晒的新进展，包括UVA／UVB防护、新的散发系统、新的成分、植物提取物和创新产品。     

有效果卓越的防晒及护肤产品中防晒保护的配方策略

本文将讨论开发效果显著的紫外防护产品中的一些问题，并将着重讨论有效添加物，在开发效果显著产品中的问题。同时，将介绍骊种新开发的二氧化钛产品，这种产品能给皮肤带来透明效果。     

浅谈防晒化妆品的发展

简单介绍了日照对人体的影响；其中主要介绍了UVA、VUB射线对肌肤带来的损伤；防晒剂的防晒原理。在化妆品的领域内，通过复合方式来增加防晒的功能、功效；今后防晒产品的发展趋势；在日常生活中，选择合适的防晒产品保护自己。     

防水型防晒产品新配方技术

在防晒化妆品中加入无机或有机UV吸收剂是目前行之有效而且广泛使用的方法,然而因其悬浮和分散性能不佳,会影响对紫外线的阻挡能力以及配方的稳定性.文章介绍了防水型防晒产品中的成膜聚合物和一种新型的增稠剂,该聚合物可给予无机UV吸收剂更好的性能.     

物理防晒剂配方应用

指出了防晒对人体的重要性，并给出了防晒产品提高效能的依据。重点讨论了如何使用TIOVEIL和SPECTRAVEIL分散液来取得最佳的效能，在达到最高的SPF值和UVA防护的同时保证最终产品的稳定和雅致外观。同时还给出了物理防晒产品TIOVEIL和SPECTRAVEIL的配方指导。     

漫谈防晒化妆品配方设计

正国外早有研究报道,人的皮肤衰老外部因素中,紫外线占据80%以上,所以,从防止皮肤老化的角度讲,防晒是非常必要的手段之一。现代人,尤其是东方女性,愈发追求美白效果,少晒太阳及大量使用美白产品,使皮肤内自我光保护的黑色素较我们的祖辈要少得多,而随着臭氧的破坏,紫外线的强度则较我们祖辈那时要强。因此,现代人的皮肤癌发生率较过去增加许多。以上诸     

Finished product formulation

Rules of formulation are discussed. Some characteristic properties of raw materials and finished products can be instrumentally determined, others more empirically. Such approach applies to raw material interchangeability as well. Formulation problems will differ according to the type of finished product: margarines, shortenings, salad dressings, deep frying fats, specialty fats. They will also vary depending on the user: household, catering, manufacturer or food industry. Modern methods for formulation are then described.     

TiO2纳米颗粒稳定的Pickering乳液用作防晒乳成分研究

采用烷基化改性的TiO_2纳米颗粒为稳定剂,化妆品级白油为油相,黄芪水溶液为水相,制备了一种载药Pickering乳液。利用TEM、接触角测试仪和光学显微镜对TiO_2纳米颗粒及载药Pickering乳液进行了表征。结果表明,该纳米颗粒分散性良好、尺寸均匀,具备良好的稳定乳液能力;通过紫外吸收测试,控制释放药物和清洗对照实验,表明该载药Pickering乳液具有较高的防晒效果和随光照时间控制释放药物以及易于从皮肤表面清洗的特性。     

二氧化钛/氧化锌复合浆料在防晒配方中的应用

将锌钛复合浆料应用到防晒霜配方中,考察了所得防晒霜的防晒性能、肤感及对配方理化性质(pH,耐热、耐寒及离心稳定性)的影响,并与市售TiO_2、ZnO混合粉体、浆料进行对比。结果表明,在防晒性能方面,配方中活性物质量分数为8%时,含锌钛复合浆料配方的SPF值可达24,PA值为6,而含市售TiO_2、ZnO混合粉体、浆料配方的SPF和PA值偏低,锌钛复合浆料同时具有协同增效屏蔽紫外线的能力(SPF值同比增长8%);在配方稳定性方面,经过冻融循环实验后,pH维持在7.2左右,解决了传统ZnO与水形成碱性络合物导致配方pH偏高的缺点;在感官评价方面,含锌钛复合浆料的配方,水润感较强,厚重感和油腻感较低,在涂抹时和涂抹后,起白不明显。     

防晒产品中防晒剂的配比研究和优化方法

利用正交设计、通过SPF－290仪器测试法和水分散紫外分光光度法的比较，研究了4种常用防晒剂：T150，Parso15000，Parsol1789,Escalo1557和一种成膜剂V220对配方防晒效果的影响，结果发现：1．水分散分光光度法在防晒配方的筛选和优化中仍具有很大的利用价值。2．获得了一个SPF值在20以上的上述防晒剂的较佳配比。     

Importance of glyceride structure to product formulation

Triglyceride composition is an important consideration in the development of fat systems for food products. Depending on the approach to formulation, physicochemical properties may be equally important. Analytical methodologies exist to determine composition and properties. Two systematic routes to the formulation of functional fats are possible—replication of triglyceride composition and approximation of physicochemical properties. Approaches to formulation of fat systems which are based on replication of triglyceride composition have achieved only limited success to date. Limiting factors include lack of commercial technology for converting readily available triglyceride structures to more valuable isomers, and limited availability at high cost of alternative fat sources containing the desired triglycerides. Approaches to formulation of fat systems which are based on fat systems whose physicochemical properties meet the desired functional attributes of the end use system irrespective of their triglyceride compositions are widely employed in the development of formulated foods. Such products are not expected to achieve functional identity to existing counterparts. Nevertheless, key attributes can be successfully approximated with this approach.     

A knowledge-based ingredient formulation system for chemical product development in the personal care industry

The formulation of personal care products involves a trial-and-error approach to testing different combinations of chemicals. Specific knowledge plays an important role in creating the desired product properties. Without knowledge support tools, the formulation process becomes iterative. Furthermore, personal care products cannot be designed without analyzing market needs, and their development thus involves the collaboration of the formulators and the marketing teams. Miscommunication can reduce the efficiency and effectiveness of the process. This paper presents a knowledge-based ingredient formulation system for supporting chemical product development in the personal care industry. Case-based reasoning is used to solve ingredient formulation problems with reference to how similar past problems have been solved. The system also acts as a collaborative platform for sharing knowledge among the various stakeholders. A case study confirms the viability of the system, and the results show that the system provides formulators with key knowledge, enabling effective product formulation.     

A new product distribution formulation for fischer-Tropsch synthesis. Effect of metal crystallite size distribution

A new product distribution formulation is presented for Fischer-Tropsch synthesis (FTS). This formulation, which contains the effect of the metal crystallite size on the product selectivity, can explain all possible Fischer-Tropsch product distributions. The Anderson-Shulz-Flory distribution formulation can be regarded as its approximation in special cases.     

FDA颁布新防晒法规

2007年8月,美国食品药品管理局(FDA)颁布了一项新法案,规定了非处方防晒产品的配方、测试和标签标准.