Self adhesive hard surface cleaning block

Abstract

The present invention relates to self adhesive hard surface cleaning blocks, and their use. It is an object of the present invention to provide a detergent block that can be easily positioned onto a hard surface; even a wet surface. It is a further object of the invention to provide a detergent block that rinses away in a number of flushes, and does not leave behind any residue that cannot be easily removed with e.g. a toilet brush. We have found that a hard surface cleaning block comprising surfactants forming a liquid crystalline phase upon contact with water meet the objects of the invention.

1 . A hard surface cleaning composition, which is at least partially transparent or translucent, characterized in that it comprises:
 a. 50 to 80% by weight of a surfactant forming a liquid crystalline phase in the presence of water, wherein the surfactant is an anionic or amphoteric surfactant, having a Krafft point below room temperature.   b. 1 to 50% by weight of perfume material.   
     and wherein the composition is in the form of a block having a hardness of 1-14 mm. 
   
   
       2 . A hard surface cleaning composition according to  claim 1 , wherein the composition further comprises an adhesive layer, wherein the adhesive layer comprises a hydrophobic adhesive material comprising:
 a. 25-60% of at least one hydrophobic compound, having an aggregate melting point of 30-60° C.; and   b. 5-75% of a polymer.   
   
   
       3 . A composition according to anyone of  claim 1  or  2 , wherein the surfactant is a nonionic surfactant. 
   
   
       4 . A composition according to  claim 3 , wherein the nonionic surfactant is selected from alcohol ethoxylates with a high degree of ethoxylation and/or polysorbate nonionic surfactants. 
   
   
       5 . Method for providing hygiene in a toilet comprising the steps of:
 a. Applying the composition according to  claims 1 - 6  to the toilet surface.   b. Flushing the toilet with water   
   
   
       6 . Use of the composition of anyone of  claims 1 - 6 , for scenting a toilet room.