Machine dishwashing tablets containing an oxygen bleach system

Details Machine dishwashing tablets containing an oxygen bleach system Machine dishwashing tablets containing an oxygen bleach system

C - Chemistry, Metallurgy

11

D

C11D 17/00 (2006.01) C11D 3/386 (2006.01) C11D 3/39 (2006.01) C11D 3/60 (2006.01) C11D 7/60 (2006.01)

Patent

CA 2223609

A solid detergent composition useful for machine dishwashing is described. The product contains a first layer having an oxygen bleach system, a buffering system, a builder, and an enzyme. The first layer dissolves to deliver a pH of 8.5 to 11 in the wash water. A second layer includes an effective amount of an acidity agent and a continuous medium having a melting point in the range of from 35°C to 50°C. The material may be a paraffin wax, a natural wax, a polyvinyl ether, fatty acids and mixtures thereof. The second layer dissolves inwash water to deliver a pH of from 6.5 to 9. The release order of the functional ingredients allows for a high level of peracid species generation in the initial wash stages followed by optimum bleaching throughout the wash.

Description d'une composition de détergent solide pour lave-vaisselle. Le produit contient une première couche ayant un système de blanchiment à l'oxygène, un système tampon, un adjuvant et un enzyme. La première couche se dissout pour donner à l'eau de lavage un pH de 8,5 à 11. Une seconde couche comprend une quantité efficace d'un agent d'acidité et un milieu continu ayant un point de fusion entre 35 et 50 degrés C. Le matériel peut être de la paraffine, une cire naturelle, un éther polyvinylique, des acides gras et leurs mélanges. La seconde couche se dissout dans l'eau de lavage pour en abaisser le pH entre 6,5 et 9. L'ordre de libération des ingrédients fonctionnels permet une production élevée de peracides dans les premières étapes du lavage, suivie du blanchiment optimal pendant tout le lavage.

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