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 water-soluble pouches, wherein each pouch comprises a plurality of compartments, wherein at least one compartment of the plurality of compartments comprises either a detergent active or auxiliary component, the process 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) securing or sealing said first and second moving webs to form a sealed or secured web; and
d) separating said secured or sealed web into the water-soluble multi-compartment pouches.
2. The process of claim 1 wherein the first moving web of filled pouches is sealed before securing the first and second moving webs to form the secured web.
3. The process of claim 1 , wherein the first moving endless surface comprise 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 sealing or securing said first and second moving webs to form a 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 1 , further comprising the step of filling fillable pouches with a filling station, wherein the filling station moves in synchronism with the first web.
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.