Unit dose article for packaging personal care products
Disclosed herein are unit dose articles comprising one or more compartments, the one or more compartments comprising a nonwoven web and a water soluble film.
1 . A unit dose article comprising a compartment, the unit dose article comprising:
a water soluble film in the form of a first pouch defining a first interior pouch volume, the water soluble film comprising a water soluble resin comprising a polyvinyl alcohol homopolymer, a polyvinyl alcohol copolymer, or a mixture of a polyvinyl alcohol homopolymer and a polyvinyl alcohol copolymer;
a nonwoven web in the form of a second pouch defining a second interior pouch volume encompassing the water soluble film in the form of a pouch, the nonwoven web comprising a plurality of fibers comprising a first fiber type comprising a polyvinyl alcohol homopolymer fiber forming material having a degree of hydrolysis of about 75% to about 91%, and a second fiber type comprising one or both of a non-water soluble polyester and a polylactic acid fiber forming material, wherein the water soluble film and the nonwoven web are in the form of a laminate; and
a personal care composition disposed within the first interior pouch volume, the personal care composition comprising a surfactant.
2 . The unit dose article of claim 1 , wherein at least a portion of the nonwoven web is not water soluble.
3 . The unit dose article of claim 2 , wherein the non-water soluble fiber forming material comprises one or more materials in a group of: cotton, hemp, jute, flax, ramie, sisal, bagasse, banana, lacebark, silk, sinew, catgut, wool, sea silk, mohair, angora, cashmere, collagen, actin, nylon, dacron, rayon, bamboo, modal, cellulose diacetate, cellulose triacetate, polyvinyl alcohol homopolymer, and polyvinyl alcohol copolymer.
4 . The unit dose article of claim 1 , wherein at least a portion of the nonwoven web is soluble in water at a temperature in a range of about 0° C. to about 20° C. according to MonoSol Test Method 205 (MSTM 205).
5 . The unit dose article of claim 1 , wherein at least a portion of the nonwoven web is not water soluble at a water temperature of 20° C. or less according to MSTM 205.
6 . The unit dose article of claim 1 , wherein the nonwoven web has a linear mass density in a range of about 1 dtex to about 5 dtex.
7 . The unit dose article of claim 1 , wherein the nonwoven web is biodegradable.
8 . The unit dose article of claim 1 , wherein the nonwoven web further comprises one or more of the group of: a chemical exfoliant, a mechanical exfoliant, a perfume microcapsule, an aversive agent, a surfactant, a colorant, an enzyme, a skin conditioner, a de-oiling agent, and a cosmetic agent dispersed among the fibers, dispersed on a face of the nonwoven web, or a combination thereof.
9 . The unit dose article of claim 8 , wherein the mechanical exfoliant comprises one or more exfoliants in the group of: apricot shells, sugar, oatmeal, salt, silica, diatomaceous earth, clay, aluminum hydrates, polyvinyl alcohol microbeads, and pumice.
10 . The unit dose article of claim 8 , wherein the chemical exfoliant comprises one or more exfoliants in the group of: an alpha hydroxyl acid, a beta hydroxyl acid, an enzyme, salicylic acid, glycolic acid, citric acid, and malic acid.
11 . The unit dose article of claim 1 , wherein the personal care composition disposed within the first interior pouch volume comprises one or more of the group of: a chemical exfoliant, a mechanical exfoliant, a perfume microcapsule, a aversive agent, a surfactant, a colorant, an enzyme, a skin conditioner, a de-oiling agent, a cosmetic agent, an ingestible ingredient, and a fertilizer.
12 . The unit dose article of claim 1 , wherein the first composition comprises a liquid.
13 . The unit dose article of claim 1 , wherein the first composition comprises a personal care composition comprising one or more compositions in the group of: a shampoo, a conditioner, a body wash, a face wash, a skin lotion, a skin treatment, a body oil, fragrance, a hair treatment, a bath salt, an essential oil, a bath bomb, and an enzyme.
14 . The unit dose article of claim 1 , wherein the first compartment and the second compartment are in the form of a laminate between the nonwoven web and water soluble film.
15 . The unit dose article of claim 1 , wherein the first compartment and the second compartment are provided in a side by side configuration.
16 . The unit dose article of claim 1 , wherein the first compartment and the second compartment are superposed.
17 . The unit dose article of claim 1 , wherein one of the first compartment and the second compartment comprises the first composition and the first composition comprises a surfactant, and the other compartment of the first compartment and the second compartment comprises a second composition comprising an enzyme.
18 . The unit dose article of claim 1 , wherein the unit dose article does not begin to release the first composition for about 1 minute.
19 . A unit dose article comprising a compartment, the unit dose article comprising:
a water soluble film in the form of a first pouch defining a first interior pouch volume, the water soluble film comprising a water soluble resin comprising a polyvinyl alcohol homopolymer, a polyvinyl alcohol copolymer, or a mixture of a polyvinyl alcohol homopolymer and a polyvinyl alcohol copolymer;
a nonwoven web in the form of a second pouch defining a second interior pouch volume encompassing the water soluble film in the form of a pouch, the nonwoven web comprising a plurality of fibers comprising a first fiber type comprising a polyvinyl alcohol homopolymer having a degree of hydrolysis of about 92% to about 99.9% and a second fiber type comprising one or both of a non-water soluble polyester and a polylactic acid fiber forming material, wherein the water soluble film and the nonwoven web are in the form of a laminate; and
a personal care composition disposed within the first interior pouch volume, the personal care composition comprising a surfactant.