Detergent products, methods and manufacture
A water-soluble pouch suitable for use in machine dishwashing and which comprises a plurality of compartments in generally superposed or superposable relationship, each containing one or more detergent active or auxiliary components, and wherein the pouch has a volume of from about 5 to about 70 ml and a longitudinal/transverse aspect ratio in the range from about 2:1 to about 1:8, preferably from about 1:1 to about 1:4. The water-soluble pouch allows for optimum delivery of dishwashing detergent. A process for the manufacture of multi-compartment pouches and a pack to contain the pouches are also disclosed.
1. A process for making a plurality of water-soluble pouches comprising the steps of:
a) forming a first moving web of filled pouches releasably mounted on a first moving endless surface;
b) forming a second moving web of filled and sealed pouches releasably mounted on a second moving endless surface;
c) superposing and sealing or securing said first and second moving webs to form a superposed and sealed or secured web; and
d) separating said superposed and sealed or secured web into the plurality of water-soluble multi-compartment pouches.
2. The process of claim 1 wherein the first moving web of filled pouches is sealed before superposing and sealing or securing the first and second moving webs to form a superposed and sealed or secured web.
3. The process of claim 1 , wherein the first moving endless surfaces comprises a first rotating endless surface.
4. The process of claim 3 , wherein the second moving endless surface comprises a second rotating endless surface.
5. The process of claim 4 , wherein the filled pouch of the first moving web of filled pouches comprises a volume from about 5 ml to about 70 ml; and wherein the filled pouch of the second moving web of filled pouches comprise a volume from about 5 ml to about 70 ml.
6. The process of claim 5 , wherein the filled pouch of the first moving web of filled pouches comprises a liquid.
7. The process of claim 5 , wherein the filled pouch of the second moving web of filled pouches comprises a powder.
8. The process of claim 6 , wherein the filled pouch of the second moving web of filled pouches comprises a liquid.
9. The process of claim 6 , wherein the filled pouch of the second moving web of filled pouches comprises a powder.
10. The process of claim 5 , wherein the filled pouch of the first moving web of filled pouches comprises a paste, gel, or wax.
11. The process of claim 1 , wherein the second moving endless surface moves in synchronism with said first moving endless surface.
12. The process of claim 2 , wherein the second moving endless surface moves in synchronism with said first moving endless surface.
13. The process of claim 2 , wherein the step of sealing the first moving web of filled pouches comprises a web closure means.
14. The process of claim 13 , wherein the web closure means moves in synchronism with the first endless surface and the first web of open pouches releasably mounted thereon.
15. The process of claim 1 , further comprising the step of inverting the second web of pouches prior to said step of superposing and sealing or securing said first and second moving webs to form a superposed and sealed or secured web.
16. The process of claim 1 , further comprising the step of feeding a water-soluble film to a die having a series of moulds to form a plurality of fillable pouches.
17. The process of claim 1 , further comprising the step of forming open pouches using thermoforming, vacuum-forming, or combination thereof.
18. The process of claim 17 , further comprising the step of filling open pouches on a first rotating endless surface, wherein the surface of the first rotating endless surface is substantially horizontal during filling.
19. The process of claim 1 , further comprising the step of filling fillable pouches wherein the first endless surface is moving in horizontal rectilinear motion during the step of filling.
20. The process of claim 19 , wherein the second endless surface is moving in substantially horizontal rectilinear or curvilinear motion during the step of filling the second moving web of fillable pouches.
21. The process of claim 1 , further comprising the step of filling fillable pouches with a filling station, wherein the filling station moves in synchronism with the first web.