Process for preparing pourable, transparent/translucent liquid detergent with non-continuous suspending system
First Claim
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1. A process for making a stable shear-thinning, transparent or translucent liquid laundry detergent composition, the composition comprising:
- (a) about 0.01 to 5% by wt. of a polymer gum or polymer gums capable of forming stable, non-continuous networks selected from the group of gums consisting of agar, gelatin, rhamsan, gellan and furcellaran wherein said stable, non-continuous network can suspend particles having a size of 300 to 5000 microns;
(b) 15 to 85% by wt. of a surfactant;
(c) an alkalinity buffer;
wherein by shear thinning is meant being able to support particles 300 to 5000 microns in size while having a pour viscosity of about 50 to about 3000 cps measured at 21S−
1 at about room temperature;
wherein by stable is meant particles do not phase separate for at least 2 weeks when measured at room temperature;
wherein said process comprises;
(i) mixing about 0.01 to 5% by wt. of a gum premix of said gum polymer or polymers with balance water at a temperature of about room temperature to about 200°
F. for at least 30 minutes or until gum is swollen to form a polymer gum premix having concentration about 0.001 to 5% by wt. composition;
(ii) promoting formation of gum bits from said premix by agitating the premix and additionally selecting a method selected from the group consisting of addition of counterion, use of temperature differential and mixtures thereof; and
(iii) separately preparing a liquid detergent base comprising the surfactant which is subsequently combined with the gum bits formed in step (ii) to form a final detergent composition comprising suspending gum bits.
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Abstract
A process for making a transparent/translucent HDL composition capable of suspending relatively large size particles while remaining readily pourable. The composition is stable, even in the presence of relatively large amounts of electrolyte/surfactants.
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Citations
11 Claims
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1. A process for making a stable shear-thinning, transparent or translucent liquid laundry detergent composition, the composition comprising:
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(a) about 0.01 to 5% by wt. of a polymer gum or polymer gums capable of forming stable, non-continuous networks selected from the group of gums consisting of agar, gelatin, rhamsan, gellan and furcellaran wherein said stable, non-continuous network can suspend particles having a size of 300 to 5000 microns;
(b) 15 to 85% by wt. of a surfactant;
(c) an alkalinity buffer;
wherein by shear thinning is meant being able to support particles 300 to 5000 microns in size while having a pour viscosity of about 50 to about 3000 cps measured at 21S−
1 at about room temperature;
wherein by stable is meant particles do not phase separate for at least 2 weeks when measured at room temperature;
wherein said process comprises;
(i) mixing about 0.01 to 5% by wt. of a gum premix of said gum polymer or polymers with balance water at a temperature of about room temperature to about 200°
F. for at least 30 minutes or until gum is swollen to form a polymer gum premix having concentration about 0.001 to 5% by wt. composition;
(ii) promoting formation of gum bits from said premix by agitating the premix and additionally selecting a method selected from the group consisting of addition of counterion, use of temperature differential and mixtures thereof; and
(iii) separately preparing a liquid detergent base comprising the surfactant which is subsequently combined with the gum bits formed in step (ii) to form a final detergent composition comprising suspending gum bits. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A process for making a stable shear-thinning, transparent or translucent liquid laundry detergent composition, the composition comprising:
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(a) about 0.01 to 5% by wt. of a polymer gum or polymer gums capable of forming stable, non-continuous networks selected from the group of gums consisting of agar, gelatin, rhamsan, gellan and furcellaran wherein said stable, non-continuous network can suspend particles having a size of 300 to 5000 microns;
(b) 15 to 85% by wt. of a surfactant;
(c) an alkalinity buffer;
wherein by shear thinning is meant being able to support particles 300 to 5000 microns in size while having a pour viscosity of about 50 to about 3000 cps measured at 21S−
1 at about room temperature;
wherein by stable is meant particles do not phase separate for at least 2 weeks when measured at room temperature;
wherein said process comprises;
(i) mixing about 0.01 to 5% by wt. of a gum premix of said gum polymer or polymers with balance water at a temperature of about room temperature to about 200°
F. for at least 30 minutes or until gum is swollen to form a polymer gum premix having concentration about 0.001 to 5% by wt. composition;
(ii) contacting a fully formed liquid detergent base or detergent base components comprising the surfactant with gum premix of (i) to form a final detergent composition comprising surfactant polymer bits formed in-situ.
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Specification