DETERGENT PACKET
A detergent packet includes a liquid detergent contained within a water soluble pouch. The water soluble pouch is formed from a film including at least one of a polymer of hydrolyzed vinyl acetate and a copolymer of hydrolyzed vinyl acetate and a second monomer. The liquid detergent includes between 5 wt % and 60 wt % water and between 0.5 wt % and 15 wt % inorganic sulfate.
1 . A detergent packet comprising:
a) a water soluble pouch formed from a film having a thickness between 50 microns and 100 microns, said film comprising:
i) a polymer comprising a hydrolyzed polymer of vinyl acetate and/or a hydrolyzed copolymer of vinyl acetate and at least one co-monomer; and
ii) a plasticizer comprising at least one of glycerol, ethylene glycol, propylene glycol and trimethylolpropane; and
b) a liquid or gel detergent contained within said water soluble pouch said liquid or gel detergent comprising:
i) between 5 wt % and 60 wt % water;
(ii) between 0.5 wt % and 15 wt % inorganic sulfate; and
(iii) glycols including at least one of ethyleneglycol and propyleneglycol.
2 . The detergent packet according to claim 1 , wherein a cation of said inorganic sulfate is selected from the group consisting of sodium, potassium, magnesium and aluminum.
3 . The detergent packet according to claim 1 , wherein a cation of said inorganic sulfate comprises sodium.
4 . The detergent packet according to claim 1 , wherein said co-monomer is selected from the group consisting of maleic acid, itaconic acid, methyl acrylate and 2-acrylamido-2-methylpropanesulfonic acid.
5 . The detergent packet according to claim 1 , wherein a degree of hydrolysis of said film expressed as a mol percentage of vinyl acetate units converted to vinyl alcohol units comprises 70 mol % to 100 mol %.
6 . The detergent packet according to claim 5 , wherein the mol percentage of vinyl acetate units converted to vinyl alcohol units comprises at least 88 mol %.
7 . The detergent packet according to claim 1 , wherein an amount of said plasticizer in the film is 5 wt % to 30 wt %.
8 . The detergent packlet according to claim 1 , further comprising an outer water soluble pouch packed with both said water soluble pouch and an outer liquid or gel detergent contained within said outer water soluble pouch, said outer liquid or gel detergent comprising:
i) less than 15 wt % of water; and
ii) less than 10 wt % of inorganic sulfate.
9 . The detergent packet according to claim 8 , wherein a cation of said inorganic sulfate of said outer liquid or gel detergent is selected from the group consisting of sodium, potassium, magnesium and aluminum.
10 . The detergent packet according to claim 8 , wherein a cation of said inorganic sulfate of said outer liquid or gel detergent comprises sodium.
11 . The detergent packet according to claim 8 , wherein said outer water soluble pouch is formed from a film comprising at least one of:
(i) a hydrolyzed polymer of vinyl acetate; and
(ii) a hydrolyzed copolymer of vinyl acetate and a co-monomer.
12 . The detergent packet according to claim 11 , wherein said co-monomer of said outer water soluble pouch is selected from the group consisting of maleic acid, itaconic acid, methyl acrylate and 2-acrylamido-2-methylpropanesulfonic acid.
13 . The detergent packet according to claim 11 , wherein a degree of hydrolysis of said outer water soluble pouch expressed as a mol percentage of vinyl acetate units converted to vinyl alcohol units comprises 70 mol % to 100 mol %.
14 . The detergent packet according to claim 11 , wherein a thickness of said film of said outer water soluble pouch is between 50 microns and 100 microns.