Treatment of hard surfaces

A hard surface treatment formulation, comprising a soil resistance-improving agent comprising:

• i) at least one water soluble polymer of Formula (I):
• R1[A1{(PO)n(EO)mH}2]p[A1(PO)n(EO)mH]g[A1]r (I)
• wherein
• R1 represents the molecular framework of a quaternized polyamine apart from p+q+r quaternized groups;
• A1 independently represents a tertiary N atom;
• a quaternary group N+R2Ans-1/s wherein R2 represents a C1 to C6 alkyl or a C7 to C10 aralkyl group and An represents a charge balancing anion carrying a charge of s-;
• or a quaternary nitrogen betaine group;
• PO represents propyleneoxy;
• EO represents ethyleneoxy;
• n represents a value from 10 to 100;
• m represents a value from 5 to 100;
• p represents the number of alkoxylated/quaternized primary amino groups in the polymer;
• q represents the number of alkoxylated/quaternized secondary amino groups in the polymer;
• r represents the number of quaternized tertiary amino groups in the polymer;
• and
• p+q+r represents a value in the range of 200 to 700;
• and
• ii) at least one detergent surfactant.