Claims
- 1. A method of dispensing multiple volumes of an aqueous solution of a wash chemical from a dispenser comprising the steps of:
- (a) depositing a sealed water soluble article containing a wash chemical into said dispenser;
- (b) repeatedly directing water onto an article contained in said dispenser in response to a concentration monitoring device in order to form a concentrate; and
- (c) repeatedly directing said concentrate to a use location wherein said article comprises
- (i) a sealed water soluble container made of a flexible film, and
- (ii) a multiple use amount of a pelletized water soluble or dispersible was chemical comprising a silicate, an alkaline metal hydroxide or mixtures thereof contained within said sealed water soluble container made of a flexible film.
- 2. The method of claim 1 wherein the water soluble container comprises a water soluble bag.
- 3. The method of claim 1 wherein the water soluble container has a minimum water temperature range for solubility of about 35.degree. F. minimum.
- 4. The method of claim 1 wherein the water soluble container comprises a water soluble polymer selected from the group consisting of a polyvinyl alcohol, polyvinyl acetate, polyvinyl pyrolidine or mixtures thereof.
- 5. The method of claim 1 wherein the water soluble container contains at least about 900 grams of pelletized functional material.
- 6. The method of claim 1 wherein the water soluble container contains about 200 grams to 9 kg of a pelletized functional material.
- 7. The method of claim 1 wherein each pellet has a mass of about 2 to 30 grams.
- 8. The article of claim 1 wherein each pellet has a width ranging from about 5 to 30 mm., a height ranging from about 10 to 80 mm., and a depth ranging rom about 10 to 30 mm.
- 9. The method of claim 1 wherein the sealed water soluble container contains at least about 200 grams of pelletized water soluble or dispersible functional composition.
- 10. The method of claim 1 wherein more than one sealed water soluble container is present in the disperser during direction of the water onto the container and formation of the concentrate.
- 11. The method of claim 1 wherein water is intermittently directed onto said article over an extended time period to provide a plurality of concentrate volumes during this time period.
- 12. The method of claim 1 wherein prior to exhaustion of said functional composition, water is intermittently directed onto said article over an extended time period to create a plurality of concentrate volumes of functional liquid, the functional liquid being dispensed to a point of application without complete dissolution of the functional material.
- 13. The method of claim 1 wherein the silicate comprises a metasilicate.
- 14. The method of claim 1 wherein the silicate comprises an alkali metal silicate.
- 15. A method for delivering an aqueous alkaline wash chemical, the method comprising:
- (a) removing a water impervious outerwrap from an article comprising:
- (i) the water impervious outerwrap;
- (ii) a container comprising a sealed, water-soluble film; and
- (iii) a multiple use amount of a pelletized, water soluble or dispersible wash chemical comprising a silicate, an alkali metal hydroxide or mixtures thereof contained within the container;
- (b) placing the article from which the outerwrap has been removed into a dispensing device;
- (c) directing water onto the article contained within the dispenser to open and to dissolve the film and to form a supply of an alkaline wash concentrate; and
- (d) directing the supply of alkaline wash concentrate from the dispenser.
- 16. The method of claim 15 wherein the water-soluble film comprises a water-soluble polymer selected from the group consisting of polyvinyl alcohol, polyvinyl acetate or mixtures thereof.
- 17. The method of claim 15 wherein the container contains at least about 200 grams of the pelletized wash chemical.
- 18. A method for delivering an aqueous alkaline wash chemical, the method comprising:
- (a) selecting an article comprising:
- (i) a moisture impervious barrier material;
- (ii) a container comprising a sealed, water-soluble film; and
- (iii) a multiple use amount of a pelletized, water soluble or dispersible wash chemical comprising a silicate, an alkali metal hydroxide or mixtures thereof contained within the container wherein the moisture impervious barrier material sealingly isolates the container from atmospheric moisture;
- (b) removing the moisture impervious barrier material from the container;
- (c) placing the article into a dispensing device;
- (d) directing water onto the article contained within the dispenser to open and to dissolve the film and to form a supply of an alkaline wash concentrate; and
- (e) directing the supply of alkaline wash concentrate from the dispenser.
Parent Case Info
This is a continuation of application Ser. No. 368,085, filed June 16, 1989, which was abandoned upon the filing hereof, and which is a continuation of Ser. No. 104,458, filed on Oct. 2, 1987, now abandoned.
US Referenced Citations (70)
Foreign Referenced Citations (2)
Number |
Date |
Country |
003769 |
Sep 1979 |
EPX |
2249949 |
May 1975 |
FRX |
Non-Patent Literature Citations (2)
Entry |
European Search Report, 12-07-90. |
Soaps and Detergents: A Basket Full of High-Tech Products, Chemical Week, 1-21-87, pp. 22-53. |
Continuations (2)
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Number |
Date |
Country |
Parent |
368085 |
Jun 1989 |
|
Parent |
104458 |
Oct 1987 |
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