IP Library › Granted Patent US 7,446,084
Granted Patent B2
US 7,446,084 · App. 11/645,326 · Granted Nov 4, 2008

Process for manufacturing multi-phase detergents or cleaning agents in a water-soluble container

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Quick Facts
Patent No.
US 7,446,084
App. No.
11/645,326
Granted
Nov 4, 2008
Kind
B2
Abstract

A method for the production of multi-phase detergents or cleaning agents, comprising the production of a water-soluble or water-dispersible container; the filling of said container with detergents or cleaning agents; application of a separating layer and filling of said container with other detergents or cleaning agents. The method is characterized in that a liquid separating agent is applied in order to form the separating layer, said agent solidifying in order to form the separating layer; the amount of packaging material used is reduced and the number of method steps is also reduced. the invention is further characterized by optimized use of space in the packaging body.

Claims (16)

1. A process for manufacturing multi-phase detergents or cleaning agents, comprising the steps of:

a) manufacturing a water-soluble or water-dispersible container;

b) filling the container with a first detergent or cleaning agent to form a first phase;

c) applying a liquid separation agent onto this first phase and hardening the separation agent to form a separation layer; and

d) filling the container with a second detergent or cleaning agent to form a second phase.

2. The process according to claim 1 , wherein the liquid separation agent is a solution or a suspension, whose solvent content is less than 80 weight percent.

3. The process according to claim 1 , wherein the liquid separation agent is a melt, whose melting point is less than 150° C.

4. The process according to claim 1 , wherein the liquid separation agent comprises an organic polymer.

5. The process according to claim 1 , wherein the liquid separation agent comprises an inorganic or organic salt.

6. The process according to claim 1 , wherein the content by weight of the separation agent, based on the total weight of the multi-phase detergent or cleaning agent that is packaged with a water-soluble or water-dispersible wrapping material forming the container is less than 10%.

7. The process according to claim 1 , wherein the separation layer formed in step (c) has a thickness of between 1 and 1,000 μm.

8. The process according to claim 1 , wherein the separation layer formed in step (c) is at least partially transparent or translucent.

9. The process according to claim 1 , wherein at least one of the detergents or cleaning agents filled in steps (b) and (d) is a solid.

10. The process according to claim 1 , wherein at least one of the detergents or cleaning agents filled in steps (b) and (d) is a liquid.

11. The process according to claim 1 , wherein steps (c) and (d) are repeated.

12. The process according to claim 1 , comprising an additional step (e) of sealing the filled container with a water-soluble film.