Method for treating fabrics
AssigneeUnited Merchants and Manufacturers, Inc.
InventorsRazmic S. Gregorian, Chettoor G. Namboodri
Life of this patent
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Abstract
Foamable fabric treatment compositions are disclosed which are composed of a fabric finishing agent and a foam stabilizer, which compositions are capable of forming a foam having a blow ratio in the range from about 2:1 to 20:1 and a foam density range from about 0.5 gm/cc to 0.05 gm/cc. Methods for preparing and using the foamable compositions are disclosed.
Claims11
In a method for treating a fabric with a finishing agent wherein the finishing agent in a liquid medium is applied to the fabric and the fabric is then subjected to drying and a fixation or curing step, the improvement which comprises using a treating composition which is stable and will substantially retain its physical properties until such time as pressure is applied thereto composed of a fabric finishing agent in an amount effective to impart the properties of the finishing agent to the fabric, and about 0.5 to 8 weight percent of a foam stabilizer, the remainder of the composition being a liquid diluent and conventional additives, foaming the treating composition into a foam having a blow ratio in the range from about 2:1 to 20:1 and a foam density in the range from about 0.5 gm/cc to 0.05 gm/cc, applying a bank of the foam directly on to a fabric, reducing the thickness of the foam in contact with the fabric with the foam substantially retaining its physical properties, collapsing the foam and forcing the foam into the coated fabric by applying pressure and then subjecting the fabric to said drying and curing or fixation steps.
In a method for treating a fabric with a finishing agent wherein the finishing agent in a liquid medium is applied to the fabric and the fabric is then subjected to drying and a fixation or curing step, the improvement which comprises using a treating composition which is stable and will substantially retain its charateristics until such time as a mechanical force is applied thereto composed of a fabric finishing agent in an amount effective to impart the properties of the finishing agent to the fabric, and about 0.5 to 8 weight percent of a foam stabilizer, the remainder of the composition being a liquid diluent and conventional additives, foaming the treating composition into a foam having a blow ratio in the range from about 2:1 to 20:1 and a foam density in the range from about 0.5 gm/cc to 0.05 gm/cc, coating onto the surface of a fabric a quantity of foam greater than that required to effect the desired treatment removing a portion of said foam from said fabric, and mechanically forcing the remaining foam into the coated fabric and collapsing the foam by compressing the fabric at a pressure in a range from about 20 to 60 psi to effect penetration of the foam through the fabric and destroy the bubbles thereof.
A method of treating a fabric with a finishing agent which comprises
- forming a foam composition which is stable and will substantially retain its characteristics during application until such time as a mechanical force is applied thereto and which includes therein said finishing agent;
- applying a layer of said foam composition directly onto the upper surface of the fabric being treated;
- controlling the height of the foam layer applied to the fabric;
- and applying a mechanical force to said foam composition on said fabric sufficient to collapse the foam and cause the composition to penetrate the fabric being treated.
Dependencies are inferred from the claim text.