PROCESS FOR THE PREPARATION OF POWDERS FROM SLURRIES OF FRAGRANCED AMINOPLAST CAPSULES

A process for the preparation of powder products via spray-drying, in a generally known manner, of aqueous dispersions, or slurries, of aminoplast microcapsules comprising an encapsulated oil, wherein, prior to being submitted to spray-drying, there is added to said slurry a de-tackifying colloid in...

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Bibliographische Detailangaben
Hauptverfasser:	VERHOVNIK, GLENN, NGUYEN, VAN CUNG
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES CANDLES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY DETERGENT COMPOSITIONS DETERGENTS FATTY ACIDS THEREFROM FOODS OR FOODSTUFFS FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL RECOVERY OF GLYCEROL RESIN SOAPS SOAP OR SOAP-MAKING THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT THEIR RELEVANT APPARATUS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES TRANSPORTING USE OF SINGLE SUBSTANCES AS DETERGENTS
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Beschreibung
Zusammenfassung:	A process for the preparation of powder products via spray-drying, in a generally known manner, of aqueous dispersions, or slurries, of aminoplast microcapsules comprising an encapsulated oil, wherein, prior to being submitted to spray-drying, there is added to said slurry a de-tackifying colloid in an appropriate amount and the pH of the slurry thus obtained is adjusted to a value comprised between 4 and 6 by means of an acid. This process makes it possible to obtain powders that are particularly useful to impart pleasant and useful properties, namely fragrance and antibacterial or malodor counteracting properties, to consumer products wherein the incorporation of aqueous media or compositions is undesirable and affects the physical structure of the consumer product.