Detergent compositions in tablet form

Details Detergent compositions in tablet form Detergent compositions in tablet form

C - Chemistry, Metallurgy

11

D

C11D 17/00 (2006.01) C11D 1/14 (2006.01) C11D 1/22 (2006.01) C11D 1/72 (2006.01) C11D 1/83 (2006.01) C11D 3/02 (2006.01) C11D 3/06 (2006.01) C11D 3/10 (2006.01) C11D 3/20 (2006.01) C11D 3/32 (2006.01) C11D 3/39 (2006.01) C11D 17/02 (2006.01)

Patent

CA 2307377

Detergent compositions in the form of tablets for fabric washing or regions of such tablets contain 30 to 65 % by weight of particles which contain 20-5 % of non-soap surfactant and also contain water-insoluble detergency builder. The non-soap surfactant is a mixture of anionic and nonionic surfactants where the amount of anionic surfactant is from 1.5 to 5 times the amount of nonionic surfactant. These particles are accompanied by at least 15 % of materials which is other than soap or organic surfactant and which promotes rapid disintegration of the tablet in water. The preferred material is a highly water-soluble salt. The particles form a network which gives both strength and elasticity to the tablet prior to use, while the water soluble material accompanying the particles, promotes rapid dissolution and disintegration at the time of use, thus giving an improved combination of strength when handled, resistance to breakage in transit, and speed of disintegration.

L'invention porte sur des compositions détergentes en forme de pastilles pour le lavage du linge qui comportent, elles ou certaines de leurs parties, de 30 à 65 % en poids de particules contenant de 20 à 5 % d'un tensio-actif sans savon et un adjuvant de détergence hydroinsoluble. Le tensio-actif est un mélange de tensio-actifs anioniques et non ioniques dans un rapport de 1,5/1 à 5/1. Ces particules sont associées à au moins 15 % de substances autres que du savon ou des tensio-actifs organiques, qui facilitent la désintégration rapide des pastilles dans l'eau. Lesdites particules constituent un réseau rendant les pastilles solides et élastiques avant usage, tandis que les substances hydrosolubles associées aux particules en favorisent la dissolution et la désintégration lors de l'utilisation. On a donc une combinaison améliorée de solidité lors des manipulations, de résistance à la rupture lors du transport, et de vitesse de désintégration.

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