The polyacrylate latexes were synthesized via pre-emulsified and semi-continuous seeded emulsion polymerization technology when conventional surfactant or polymerizable surfactant was used as emulsifiers. The resultan...The polyacrylate latexes were synthesized via pre-emulsified and semi-continuous seeded emulsion polymerization technology when conventional surfactant or polymerizable surfactant was used as emulsifiers. The resultant latexes and their films were characterized with the contact angle determinator and rheometer. Effect of the polymerizable surfactant on water resistance, stability and rheology of the latex was studied. Results show that the water resistance of film is increased first then decreased with the increase of the amount of the polymerizable surfactant. There exists the optimum value of the amount of the polymerizable surfactant for the water resistance of the film. In comparison with the latex prepared with the conventional surfactant, both the mechanical stability and the freezing-thaw stability of the latex are improved when the polymerizable surfactant is used during the course of the emulsion polymerization. The resultant latex has rheological properties of pseudo-plastic fluid and belongs to non-Newtonian fluid.展开更多
This article summarized and compared the requirements of UV filters in EU, US, Canada, Australia, ASEAN, China Taiwan and China, helping companies using the UV filters correctly and compling with the requirements in a...This article summarized and compared the requirements of UV filters in EU, US, Canada, Australia, ASEAN, China Taiwan and China, helping companies using the UV filters correctly and compling with the requirements in above countries and areas.展开更多
Cosmetic regulation updates and recall cases in 2016 were summarized and reviewed to support cosmetic companies to understand the latest requirements in China.
The cosmetics regulatory agency reforms,standards and other regulatory status were introduced in detail in China in 2018.The changes of regulatory requirements and industrial standards have been summarized and analyze...The cosmetics regulatory agency reforms,standards and other regulatory status were introduced in detail in China in 2018.The changes of regulatory requirements and industrial standards have been summarized and analyzed to help companies further understand the updates of regulatory policies and respond to the latest changes in cosmetic regulations more smoothly.展开更多
In this paper we introduce and compare the definitions of cosmetics and regulatory status of wet wipes in Europe, United States, Canada, Australia and China. wet wipes used on human body are regulated as cosmetics in ...In this paper we introduce and compare the definitions of cosmetics and regulatory status of wet wipes in Europe, United States, Canada, Australia and China. wet wipes used on human body are regulated as cosmetics in Europe, United States, Canada and Australia, but as disposable hygiene products in China where there are no special provisions on the use of raw materials. Considering the cosmetic definition and industry development requirements, we suggest to include this type of wet wipes into cosmetic administration.展开更多
The update of Chinese cosmetics regulations in 2020 was introduced in detail.Sorted out and analyzed the requirements of the"Regulations on Cosmetics Supervision and Administration"and supporting documents,w...The update of Chinese cosmetics regulations in 2020 was introduced in detail.Sorted out and analyzed the requirements of the"Regulations on Cosmetics Supervision and Administration"and supporting documents,which can help cosmetics companies to deeply analyze the changes in cosmetics supervision policies,further understand the regulatory requirements,and respond to the latest changes in cosmetic regulations more smoothly.展开更多
Compare current and previous requirements of the Cosmetic Registration and Inspection Practice,explain the current testing items in detail,to help companies understand the latest requirements of the Cosmetic Registrat...Compare current and previous requirements of the Cosmetic Registration and Inspection Practice,explain the current testing items in detail,to help companies understand the latest requirements of the Cosmetic Registration and Inspection Practice.展开更多
Compare the current and previous requirements of the old and new“Regulation on Supervision and Administration of Cosmetics”,interpret the changes in the new regulations in detail,to help the enterprises understand t...Compare the current and previous requirements of the old and new“Regulation on Supervision and Administration of Cosmetics”,interpret the changes in the new regulations in detail,to help the enterprises understand the latest requirements of Regulation on Supervision and Administration of Cosmetics.展开更多
基金Zhejiang Provincial Natural Science Foundation of China(No.Y4100152)
文摘The polyacrylate latexes were synthesized via pre-emulsified and semi-continuous seeded emulsion polymerization technology when conventional surfactant or polymerizable surfactant was used as emulsifiers. The resultant latexes and their films were characterized with the contact angle determinator and rheometer. Effect of the polymerizable surfactant on water resistance, stability and rheology of the latex was studied. Results show that the water resistance of film is increased first then decreased with the increase of the amount of the polymerizable surfactant. There exists the optimum value of the amount of the polymerizable surfactant for the water resistance of the film. In comparison with the latex prepared with the conventional surfactant, both the mechanical stability and the freezing-thaw stability of the latex are improved when the polymerizable surfactant is used during the course of the emulsion polymerization. The resultant latex has rheological properties of pseudo-plastic fluid and belongs to non-Newtonian fluid.
文摘This article summarized and compared the requirements of UV filters in EU, US, Canada, Australia, ASEAN, China Taiwan and China, helping companies using the UV filters correctly and compling with the requirements in above countries and areas.
文摘Cosmetic regulation updates and recall cases in 2016 were summarized and reviewed to support cosmetic companies to understand the latest requirements in China.
文摘The cosmetics regulatory agency reforms,standards and other regulatory status were introduced in detail in China in 2018.The changes of regulatory requirements and industrial standards have been summarized and analyzed to help companies further understand the updates of regulatory policies and respond to the latest changes in cosmetic regulations more smoothly.
文摘In this paper we introduce and compare the definitions of cosmetics and regulatory status of wet wipes in Europe, United States, Canada, Australia and China. wet wipes used on human body are regulated as cosmetics in Europe, United States, Canada and Australia, but as disposable hygiene products in China where there are no special provisions on the use of raw materials. Considering the cosmetic definition and industry development requirements, we suggest to include this type of wet wipes into cosmetic administration.
文摘The update of Chinese cosmetics regulations in 2020 was introduced in detail.Sorted out and analyzed the requirements of the"Regulations on Cosmetics Supervision and Administration"and supporting documents,which can help cosmetics companies to deeply analyze the changes in cosmetics supervision policies,further understand the regulatory requirements,and respond to the latest changes in cosmetic regulations more smoothly.
文摘Compare current and previous requirements of the Cosmetic Registration and Inspection Practice,explain the current testing items in detail,to help companies understand the latest requirements of the Cosmetic Registration and Inspection Practice.
文摘Compare the current and previous requirements of the old and new“Regulation on Supervision and Administration of Cosmetics”,interpret the changes in the new regulations in detail,to help the enterprises understand the latest requirements of Regulation on Supervision and Administration of Cosmetics.
