A method of washing ware in an automatic ware washing machine, is disclosed, using a rinse aid composition containing a polysaccharide. The polysaccharide adsorbs on the ware resulting in a sheeting action of the rinse solution leading to improved drying of the ware.
1. A method for washing ware in an automatic ware washing machine, the method comprising:
(a) contacting the ware during a wash cycle with an aqueous cleaning solution, and
(b) contacting the washed ware during a rinse cycle with an aqueous rinse solution in which a rinse aid composition is dosed, the rinse aid composition comprising a polysaccharide, wherein the polysaccharide is a cationic starch-based polysaccharide, and further wherein the cationic starch-based polysaccharide and the amount of the cationic starch-based polysaccharide are selected to provide an improved drying behavior of the washed ware corresponding to the ratio of drying time using rinse aid with cationic starch-based polysaccharide to drying time using rinse aid without cationic starch-based polysaccharide being at the most 0.5, and further corresponding to the ratio of number of droplets after 5 minutes using rinse aid with the cationic starch-based polysaccharide to number of droplets after 5 minutes using rinse aid without the cationic starch-based polysaccharide being at the most 0.1, and further wherein the cationic starch-based polysaccharide is a (3-chloro-2-hydroxypropyl)trimethylammonium chloride modified starch.
2. The method according to claim 1 , wherein the (3-chloro-2-hydroxypropyl)trimethylammonium chloride modified starch is present in the rinse aid composition in a concentration of 1% to 10% (w/w).
3. The method according to claim 1 , further wherein the rinse aid composition comprises a non-ionic surfactant at a concentration of no more than about 10% (w/w).
4. The method according to claim 1 , further wherein the rinse aid composition does not comprise a non-ionic surfactant.
5. The method according to claim 1 , wherein the (3-chloro-2-hydroxypropyl)trimethylammonium chloride modified starch is present in the rinse aid composition in a concentration of 1% to 10% (w/w) and further wherein the rinse aid composition does not comprise a non-ionic surfactant.
6. The method according to claim 1 , wherein the automatic ware washing machine is an automatic institutional ware washing machine.
7. The method according to claim 6 , wherein the automatic institutional ware washing machine is a single tank or a multi-tank/conveyor machine and is operated at a temperature in the range of from about 80° C. to about 90° C. in the rinse cycle.
8. The method according to claim 7 , wherein the (3-chloro-2-hydroxypropyl)trimethylammonium chloride modified starch is present in the rinse aid composition in a concentration of 1% to 10% (w/w).
9. The method according to claim 8 , further wherein the rinse aid composition does not comprise a surfactant.
10. The method according to claim 1 , further wherein the (3-chloro-2-hydroxypropyl)trimethylammonium chloride modified starch is formed by reacting a epoxypropyltrimethylammonium salt with starch.
11. A method for washing ware in an automatic ware washing machine, the method comprising:
(a) contacting the ware during a wash cycle with an aqueous cleaning solution, and
(b) contacting the washed ware during a rinse cycle with an aqueous rinse solution in which a rinse aid composition is dosed, the rinse aid composition comprising a polysaccharide, wherein the polysaccharide is a (3-chloro-2 hydroxypropyl)trimethylammonium chloride modified starch.
12. The method according to claim 11 , wherein the (3-chloro-2-hydroxypropyl)trimethylammonium chloride modified starch is present in the rinse aid composition in a concentration of 1% to 10% (w/w).
13. The method according to claim 11 , further wherein the rinse aid composition comprises a non-ionic surfactant at a concentration of no more than about 10% (w/w).
14. The method according to claim 11 , further wherein the rinse aid composition does not comprise a non-ionic surfactant.
15. The method according to claim 11 , wherein the (3-chloro-2-hydroxypropyl)trimethylammonium chloride modified starch is present in the rinse aid composition in a concentration of 1% to 10% (w/w) and further wherein the rinse aid composition does not comprise a non-ionic surfactant.
16. The method according to claim 11 , wherein the automatic ware washing machine is an automatic institutional ware washing machine.
17. The method according to claim 16 , wherein the automatic institutional ware washing machine is a single tank or a multi-tank/conveyor machine and is operated at a temperature in the range of from about 80° C. to about 90° C. in the rinse cycle.
18. The method according to claim 17 , wherein the (3-chloro-2-hydroxypropyl)trimethylammonium chloride modified starch is present in the rinse aid composition in a concentration of 1% to 10% (w/w).
19. The method according to claim 18 , further wherein the rinse aid composition does not comprise a surfactant.
20. The method according to claim 11 , further wherein the (3-chloro-2-hydroxypropyl)trimethylammonium chloride modified starch is formed by reacting a epoxypropyltrimethylammonium salt with starch.