Process for making a multi-compartment pouch

Patent metadata

Field	Value
Publication number	US-2016348045-A1
Application number	US-201615154060-A
Country	US
Kind code	A1
Filing date	May 13, 2016
Priority date	May 29, 2015
Publication date	Dec 1, 2016
Grant date	—

Abstract

A process for making a multi-compartment water-soluble automatic dishwashing cleaning pouch, the pouch comprising an enveloping material and a detergent composition, the detergent composition has a low pH and comprises a lime soap dispersing agent, the process comprising the steps of: i) making a first open compartment and filling the first open compartment with a liquid composition having a viscosity of from about 1 to about 500 mPa s at 23° C. wherein the liquid composition comprises more than 20% by weight of the liquid of an aqueous lime soap dispersing agent and has a pH of less than 10; ii) making a second open compartment and filing the second open compartment with a powder; and iii) closing the open compartments to make a pouch.

First claim

What is claimed is:

1 . A process for making a multi-compartment water-soluble automatic dishwashing cleaning pouch, the pouch comprising an enveloping material and a detergent composition, the detergent composition has a low pH and comprises a lime soap dispersing agent, the process comprising the steps of:
i) making a first open compartment and filling the first open compartment with a liquid composition having a viscosity of from about 1 to about 500 mPa s at 23° C. wherein the liquid composition comprises more than 20% by weight of the liquid of an aqueous lime soap dispersing agent and has a pH of less than 10; ii) making a second open compartment and filing the second open compartment with a powder; and iii) closing the open compartments to make a pouch.

2 . A process according to claim 1 wherein the lime soap dispersing agent is selected from the group consisting of surfactants, performance polymers and mixtures thereof.

3 . A process according to claim 1 wherein the soap dispersing agent is a surfactant comprising an alkyl ethoxy sulfate.

4 . A process according to claim 1 further comprising a suds suppressor.

5 . A process according to claim 1 wherein the soap dispersing agent is an alkoxylated polyalkyleneimine.

6 . A process according to claim 1 wherein the liquid composition further comprises a non-ionic surfactant.

7 . A process according to claim 1 wherein the liquid composition further comprises a neutralizing agent.

8 . A process according to claim 1 wherein the liquid composition further comprises dipropylene glycol.

9 . A process according to claim 1 wherein the liquid composition further comprises glycerol and wherein the aqueous lime soap dispersing agent and the glycerol are in a weight ratio of from about 3:1 to about 1:1.

10 . A process according to claim 1 wherein the liquid composition further comprises dipropylene glycol and wherein the aqueous lime soap dispersing agent and the dipropylene glycol are in a weight ratio of from about 4:1 to about 2:1.

11 . A process according to claim 1 wherein the liquid composition comprises:
i) from about 10 to about 40% by weight of the liquid composition of aqueous lime soap dispersing agent comprising an alkyl ethoxy sulfate;
ii) from about 4 to about 40% by weight of the liquid composition of dipropylene glycol;
iii) from about 4 to about 30% by weight of the liquid composition of glycerine;
iv) optionally from about 5% to about 40% of non-ionic surfactant
v) optionally from about 5% to about 20% by weight of the liquid composition of a performance polymer.

12 . A process according to claim 1 wherein the eRH of the cleaning product is less than about 60% at about 20° C.

13 . A process according to claim 1 wherein the second compartment comprises a powder wherein at least 80% of the powder has a weight average particle size of from about 250 to about 850 μm with less than about 10% by weight of the particles below about 150 μm and less than about 5% by weight of the particles above about 1180 μm and wherein the powder has a cake strength of less than about 20 N.

14 . A process according to claim 1 wherein the powder comprises an agglomerate and the agglomerate comprises:
i) from about 10 to about 40% by weight of the agglomerate of iron chelant, preferably disodium catecholdisulfonate;
ii) from about 20 to about 60% by weight of the agglomerate of fine citrate having a weight average particle size of from about 212 to less than about 425 μm; and
iii) from about 20 to about 60% by weight of the agglomerate of coarse citrate having a weight average particle size of from greater than 425 to about 850 μm.

15 . A multi-compartment water-soluble automatic dishwashing pouch obtainable according to the process of claim 1 .

Assignees

• Procter & Gamble

Inventors

• Smith David John
• Souter Philip Frank
• Brooker Alan Thomas
• Somerville Roberts Nigel Patrick

Classifications

• C11D3/2068

  Ethers · CPC title

• C11D3/3753

  Polyvinylalcohol; Ethers or esters thereof · CPC title

• C11D1/29

  Sulfates of polyoxyalkylene ethers · CPC title

• C11D3/361

  Phosphonates, phosphinates or phosphonites · CPC title

• C11D17/045 Primary

  Multi-compartment · CPC title