Beauty Bulletin Newsletter for silica in personal care Another newsletter? Manufactures of personal care products have thousands of different raw materials to choose from. New raw materials are constantly being developed that offer new and unique properties for the cosmetics of today and tomorrow. AEROSIL® fumed silica and SIPERNAT® precipitated silica have been used in personal care and cosmetic products for many years and therefore might be considered as “traditional” ingredients that, although very useful and of high quality, don’t have much new to offer. But is it really so? We at Evonik strongly believe that AEROSIL® and SIPERNAT® products enable new and exciting formulation Introduction ACEMATT® TS 100 – Adding versatility to your nail polish formulations Only a small stroke of nail polish is needed to create a new personal expression. As this can be done in a very affordable way, nail polishes have gained a strong popularity in current beauty and fashion styles. Formulators have created nail polishes in multiple colors to fit to the latest fashion trends and the moods of the consumer. But, what if a simple color change is not enough to get the attention that your nail polish formulations deserve? opportunities. Innovations don’t always have to be the result of new products, but the reimagining of existing ones. This newsletter is to inform personal care formulators and other interested people of novel concepts and new developments related to the use of silica in cosmetic formulations. If you do not focus on new product formulation yourself, please feel free to distribute this newsletter on to your R&D colleagues or whoever might be interested in your organization. Issue 1 | 2013 Topic ACEMATT® TS 100 – a high performance matting agent Matt nail polish formulations with ACEMATT® TS 100 Crackle nail polish formulations with ACEMATT® TS 100 in-cosmetics in Paris on April 16 – 18, booth D81 2 SILIC A FOR BE AUT Y ACEMATT® TS 100, a silica matting agent, may open new and exciting ways to create nail polish formulations that stand out from the crowd. This product will allow the formulator to add unique characteristics and dimensions to a formulation without relying on traditional methods such as pigment selection. In this newsletter we want to introduce you to this new product and provide insight on how ACEMATT® TS 100 can be used to formulate nail polishes with a matt or crackle finish. wet coating ACEMATT® TS 100 is a unique matting agent produced by flame hydrolysis. Due to its specific structure and particle size, it is able to produce matt surfaces with low levels of addition. In traditional nail polish formulations, the even surface of the coating leads the light to be reflected directly off the surface into the eyes. This direct reflection leads the eye to perceive the surface as glossy. When a matting agent is added to a system, the surface of the coating become rough, resulting in the amount of light that is film shrinkage due to the solvent evaporation dry coating directly reflected reduced. The overall intensity or disruption of the ref lection depends on the degree of surface-roughness. This alteration of the surface causes the eye to perceive the finish to be matted as opposed to glossy. ACEMATT® TS 100 (INCI name: Silica) is characterized by a very high matting efficiency for these types of formulations. When painting the nails, evaporation of the solvents in the lacquer causes the shrinkage of the coating. ACEMATT® TS 100, with an average particle size of approximately 9.5 µm, stands out from the lacquer layer, thereby forming a micro-rough surface after drying. (see fig. 1). This micro-rough surface causes enough surface roughness to alter the light scattering of the coating but not the feel of the coating on the nail. By incorporating ACEMATT® TS 100, a matted nail polish can be created while keeping the smooth finish on the nail. Figure 1 Schematic representation of the mechanism of matting agents Matt nail polish formulations with ACEMATT® TS 100 Traditionally, gloss and color have been the two predominant parameters in a nail polish. Ultra glossy nail polishes have become quite common and familiar in nail decoration. Matt nail polish instantly makes your nails stand out from others due to their exceptionally unique and stylish look. Nail polishes with a matt effect are easily formulated using EVONIK Industries’ ACEMATT® TS 100. Due to its excellent matting behavior and good dispersibility, only a small concentration of ACEMATT® TS 100 is required to see these benefits. ACEMATT® TS 100 can be easily incorporated into any traditional nail polish formulation with only very limited reformulation work. Beauty Bulletin | Issue 1 | 13 As demonstrated in figure 2, ACEMATT® TS 100 is an excellent matting agent which gives a smooth and silky matt film on the nails. Figure 2 Matt nail finish created with ACEMATT® TS 100 SILIC A FOR BE AUT Y 3 Matt Nail Polish Phase Ingredients INCI name 1 Nail polish base Butyl Acetate; Ethyl Acetate, Nitrocellulose, Isopropyl Alcohol AEROSIL® R 972 1 % w/w Silica Dimethyl Silylate 2.00 2 ACEMATT® TS 100 Silica 2.00 3 Pigment Pre-dispersed pigments 2.00 1 Total 1 94.00 100.00 Evonik Industries AG, Inorganic Materials • Add AEROSIL® R 972 to the nail polish base and disperse with dissolver for at least 15 minutes. • Add ACEMATT® TS 100 to Phase 1 and disperse with moderate speed for 10 minutes. • Add pre-dispersed pigments and stir until homogeneous mixture is obtained. Note: The benefit of AEROSIL® R 972 is to improve the suspension stability of the nail polish formulation. Crackle nail polish formulations with ACEMATT® TS 100 For the even more daring consumers, shatter or crackle nail polishes recently have surfaced as another fashion trend. These polishes give interesting two colored patterns on the nails which catches everybody’s eyes. Crackle nail polishes come in an eclectic range of different colors and shades to give versatility in the final style. To create this nail art three different coats are necessary: a base coat, a crackle coat and final top coat. The base coat and crackle coat are usually in contrasting colors. The base coat can be dark and crackle coat light or vice versa. The crackle coat can also contain glitter particles or pearlescent pigments for further flexibility. This technique is an inexpensive form of nail art. Crackle nail polish can be applied simply by the customer without added visits to nail salons, which is a distinct difference to other elaborate nail art techniques and opens these products to a wider part of the market. Evonik’s ACEMATT® TS 100 is used in the base coat as well as crackle coat. It is advised to add up to 2 wt. % matting agent to the base coat formulation and 4 – 7 wt.% in the formulation of the crackle coat. Figure 3 Crackle nail polish using ACEMATT® TS 100 The formulator of nail polish can easily design the crackle pattern by modifying the ACEMATT® TS 100 concentration in the crackle coat formulation. (see Figure 4). By adding a small amount of 3 wt. % 5 wt. % ACEMATT® TS 100 fine lined crackles are produced. By incorporating a larger concentration of ACEMATT® TS 100, the crackles become more pronounced, leading to a more eye-catching pattern. 7 wt. % Figure 4 Examples of crackle nail polishes in different colors using increasing concentrations of ACEMATT® TS 100 in the crackle coat Beauty Bulletin | Issue 1 | 13 4 SILIC A FOR BE AUT Y Besides the formulation materials, the final look is also influenced by the thickness of the film applied to the nail. The crackling is an extremely random and unpredictable process which leads to a unique finish on each individual nail. The thinner the crackle coat is applied, the smaller the cracks will be. A thicker crackle coat will result in more visible cracks. For best results, it is necessary for the base coat to completely dry before the crackle coat is applied. After a thick coat of the crackle polish has been applied and dried, it produces a matt appearance but tends to be brittle. In order to preserve the polish and prevent chipping, it is advisable to finish the decoration with a protective top coat. Crackle Nail Polish System Base Coat Phase Ingredients INCI name % w/w 1 Nail polish base Butyl Acetate; Ethyl Acetate, Nitrocellulose, Isopropyl Alcohol 2 AEROSIL® R 972 1 Silica Dimethyl Silylate 2.00 3 ACEMATT® TS 100 1 Silica 2.00 4 Pigment Pre- dispersed pigments 3.00 Total 1 93.00 100.00 Evonik Industries AG, Inorganic Materials Crackle Coat Phase Ingredients INCI name 1 Nail polish base Butyl Acetate; Ethyl Acetate, Nitrocellulose, Isopropyl Alcohol 15.00 Ethyl Acetate Ethyl Acetate 53.00 2 ACEMATT® TS 100 1 Silica 3 Isopropyl Alcohol Isopropyl Alcohol 4 Pigment Pre- dispersed pigments Total 1 • Add AEROSIL® R 972 to the nail polish base and disperse with dissolver for at least 15 minutes. • Add ACEMATT® TS 100 to Phase 1 and disperse with moderate speed for 10 minutes. • Add pre-dispersed pigments and stir until homogeneous mixture is obtained. % w/w 5.00 25.00 2.00 100.00 • Add ethyl acetate to the nail polish base. • Add ACEMATT® TS 100, wet while stirring with moderate speed. • Add isopropyl alcohol and pre-dispersed pigments and homogenize with low speed for at least 15 minutes. Note: The concentration of ACEMATT® TS 100 can be varied from 4 – 7 wt. % by altering the concentration of ethyl acetate. Evonik Industries AG, Inorganic Materials Evonik Industries AG Inorganic Materials Rodenbacher Chaussee 4 63457 Hanau Germany phone +49 6181 59-12532 [email protected] www.evonik.com This information and all technical and other advice are based on Evonik’s present knowledge and experience. However, Evonik assumes no liability for such information or advice, including the extent to which such information or advice may relate to third party intellectual property rights. Evonik reserves the right to make any changes to information or advice at any time, without prior or subsequent notice. EVONIK DISCLAIMS ALL REPRESENTATIONS AND WARRANTIES, WHETHER EXPRESS OR IMPLIED, AND SHALL HAVE NO LIABILITY FOR, MERCHANTABILITY OF THE PRODUCT OR ITS FITNESS FOR A PARTICULAR PURPOSE (EVEN IF EVONIK IS AWARE OF SUCH PURPOSE), OR OTHERWISE. EVONIK SHALL NOT BE RESPONSIBLE FOR CONSEQUENTIAL, INDIRECT OR INCIDENTAL DAMAGES (INCLUDING LOSS OF PROFITS) OF ANY KIND. It is the customer’s sole responsibility to arrange for inspection and testing of all products by qualified experts. Reference to trade names used by other companies is neither a recommendation nor an endorsement of the corresponding product, and does not imply that similar products could not be used. AEROSIL® is a registered trademark of Evonik Degussa GmbH. Issue 1 | 2013 – Newsletter for silica in personal care preparations
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