Quantification of Microcapsules Deposited in Cotton Fabrics before and after Abrasion Using Fluorescence Microscopy
Quantification of Microcapsules Deposited in Cotton Fabrics before and after Abrasion Using Fluorescence Microscopy
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DOI：
10.1021/ie3023912
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发表时间：
2012-12-26
影响因子：
4.2
通讯作者：
Bakalis, Serafim
中科院分区：
文献类型：
--
作者：
Mercade-Prieto, Ruben;Pan, Xuemiao;Bakalis, Serafim
用于洗衣应用的香料微胶囊广泛用于家庭和消费者护理产品。胶囊必须在洗涤过程中结合到织物中，并经受住漂洗和干燥步骤，直到所需的破裂时刻（通常是在与皮肤接触时）。为了评估微胶囊在不同步骤中的性能，需要量化方法。这里报道了第一种方法，使用荧光显微镜，通过图像分析在大的织物区域中单独确定荧光微胶囊的数量和尺寸。使用光滑和粗糙表面，在干燥和潮湿条件下研究了两种不同尺寸的荧光三聚氰胺甲醛香料微胶囊在磨损下的性能。通过磨损次数获得生存曲线，从而可以表征微胶囊在不同条件下的性能。除了定量之外，荧光和光学显微镜还可以识别胶囊沉积在织物中的位置，以及哪些是允许微胶囊经受广泛磨损的最安全区域。
Perfume microcapsules for laundry applications are extensively used in home and consumer care products. Capsules have to bind into the fabric during washing and survive the rinsing and drying steps until the desired moment of rupture, usually when in contact with the skin. In order to assess the performance of the microcapsules in the different steps, quantification methods are required. It is reported here the first methodology, using fluorescence microscopy, whereby the number and size of fluorescent microcapsules is individually determined in large fabric areas using image analysis. The performance of fluorescent melamine-formaldehyde perfume microcapsules of two different sizes under abrasion is studied using smooth and rough surfaces, under dry and wet conditions. Survival profiles are obtained with the number of abrasion passes, allowing for characterizing the performance of microcapsules under different conditions. In addition to quantification, fluorescence and optical microscopy allow for identifying where are the capsules deposited in the fabric, as well as which are the safest zones that allow microcapsules to survive extensive abrasion.