Abstract: During the rinse cycle of a re-circulating dishwashing machine (132), water is simultaneously diverted into a dispenser (100) as water is delivered to the rinse arms (133) of the dishwashing machine (132). The cavity (118) of the dispenser (100) contains a solid detergent block (125) and is flooded with water during the rinse cycle. The water contacts the detergent (125) during the rinse cycle to create a use solution, and the use solution exits the dispenser (100) and flows into a wash water storage tank (135) of the dishwashing machine (132). During the wash cycle of the dishwashing machine (132), the wash water containing the use solution from the dispenser (100) is pumped into the wash arms (134). The wash water becomes diluted during the subsequent rinse cycle, however, the water diverted into the dispenser (100) during the rinse cycle replenishes the detergent (125) concentration in the wash water for use in the subsequent wash cycle.

Abstract: Manual warewashing in common food service locations is typically performed in a multicompartment sink within three or more basins. In one basin the ware is contacted with an aqueous solution of a detergent composition. The ware is cleaned using mechanical action to remove soil. The cleaned ware is often rinsed in a subsequent sink in a potable water rinse and is then sanitized in a sanitizing solution in a subsequent basin, typically the third sink in sequence. The sanitizing solution can be rapidly depleted during periods of large volumes of hand washed ware. In order to monitor and control the concentration of the sanitizer in the sanitizer sink, we have found that even highly oxidizing hypochlorite bleaches, if adjusted to an appropriate pH, can maintain substantial sanitizing capacity while not decolorizing otherwise oxidatively sensitive dyes.

Abstract: A solution capable of removing adherent organic material from the surface of a solid substrate at room temperature. The solution includes a first solvent, preferably water, having dissolved therein: up to 2% alkali metal silicates, a source of alkalinity that is substantially free of alkali metal hydroxide ions, an organic solvent, and an amount of hydrotrope effective to render the organic solvent or solvents soluble in the solution, an amino alcohol may be included, at least one surfactant, and a corrosion inhibitor may be included. The solution should have an alkaline pH less than about 12. The solution is used to remove the adherent organic material by soaking the object having such material thereon in such a solution, preferably at room temperature.

Abstract: The present device relates to a dispensing and rinsing gun (100) for use with a hose member (209 and 210) to dispense either a diluted product or water through the same dispensing and rinsing gun (100) without having to attach different nozzles. A selector (156) operatively connected to the gun (100) allows the gun (100) to dispense either a diluted product or water by rotating the selector (156) to the appropriate push button valve (154) controlling the desired product or water, and the selector (156) may be operated with one hand. A trigger (103) controls the type of spray used when the dispensing and rinsing gun (100) is used in the water rinse mode.

Abstract: In fabric laundry procedures, commercial and household laundry detergent compositions commonly contain an optical brightener composition. Brighteners adjust the optical properties of the fabric in such a way that the fabric appears to be white even after repeated washings. Often white fabrics can yellow during use. Fluorescent optical brighteners having an optical blue aspect, mask the yellowing of the fabric. Common laundry detergents fail to have sufficient brightening capacity to brighten heavily soiled white cotton items used in household, commercial, institutional or fast-food food surface. A process for improving the whiteness of soiled white cotton, preferably terry cloth, items involves contacting the soiled white fabric item with a presoak containing an effective proportion of a fluorescent optical brightener composition, removing the item from the presoak and separating the presoak composition from the fabric item producing an extracted item.

Abstract: A novel detergent composition and product form provides for substantial chlorine stability in detergents having substantial organic surfactant concentration. The product format ensures that water contained in the formulation, contact between sensitive organic materials and the chlorine source are structurally isolated preventing undesirable chlorine surfactant interactions and instability. Particulate detergents can be packaged in any arbitrary packaging component that can maintain a dry flowable powder.