Fabric treatment article and method
View Patent ↗A fabric treatment article for use in a conventional home clothes dryer is described that deodorizes and freshens clothing in need of freshening without imparting additional stains. The product is particularly suited for delivering a fragrance to relatively dry clothing and can be added directly to the dryer without the need for a bag to contain the product and clothing during the dryer cycle.
1. A substantially wet fabric treatment article for treating fabrics in a rotary tumble dryer, comprising:
a. a treatment article substrate having a hydrophobic and a hydrophilic segment wherein said hydrophobic segment has a capacity to releasably absorb a quantity of an oil and said hydrophilic segment has a capacity to releasably absorb a quantity of water;
b. a fabric treatment liquid or gel composition releasably absorbed on said substrate, said composition containing at least 50% by wt. of water based on said composition;
c. a fabric treatment component wherein said fabric treatment component does not demonstrate visually perceivable staining of the treated fabrics under standard tumble drying conditions;
d. less than 1.0% by wt. of a surfactant, a dispersing agent, a cationic fabric softener or a blend thereof based on the weight of said composition, and less than 2% by wt. of non-volatile matter; and
e. wherein said treatment article contains said fabric treatment composition in an amount of 1.0 grams to less than 190 grams; and,
f. wherein said fabric treatment composition contains about 0.5 to 5% by wt. of a fragrance.
2. The article of claim 1 , wherein the ratio of said hydrophobic capacity to absorb oil to said hydrophilic capacity to absorb water is in the range of 99:1 to 1:99.
3. The article of claim 1 , wherein said substrate is a nonwoven textile having at least one layer.
4. The article of claim 3 wherein said nonwoven textile contains fibers with hydrophilic surfaces and fibers with hydrophobic surfaces in the same layer or in different layers.
5. The article of claim 4 wherein said nonwoven textile contains a blend of rayon and polyester fibers in the ratio range of 1:99 to 99:1.
6. The article of claim 1 , wherein at least one of said fabric treatment components is a fragrance and has a volatility such that organoleptically perceivable fragrance and/or absence of malodor is delivered to the treated fabrics upon treatment in a rotary tumble dryer under standard tumble drying conditions.
7. The article of claim 1 , wherein the fabric treatment composition further comprises a buffering agent.
8. A method of treating fabrics to remove odors and/or wrinkles without leaving a visible product residue, comprising the steps of:
a. contacting a fabric or garment with an treatment article substrate; and
b. agitating the fabric or garment and substrate in a drying apparatus under conditions effective for delivering the major portion of said fabric treatment composition to the treated articles for a time period of 1 to 45 minutes, wherein the fabric or garment and substrate is allowed to directly contact the inner surface of the dryer while running the drying apparatus, and wherein the treatment does not leave a visible residue on the fabric or garment.
9. A process for manufacturing the article of claim 1 , where the fragrance is applied to the substrate in a separate step from the water by spraying, coating or dipping.
10. A process for manufacturing the article of claim 1 , where the fragrance and fabric treatment composition are continuously homogenized until transfer to a spraying, coating or dipping device; the homogenized composition containing at least 50% by wt. of droplets with a diameter below 50 microns, said composition being applied to said substrate within 5 minutes after the transfer by spraying, coating or dipping.