Method of producing air-permeable fabric conditioner sheet for laundry dryer
AssigneePurex Corporation
InventorsJohn H. Barrett, Brian P. Flynn
Life of this patent
Estimating the term…
Abstract
A fabric conditioner composition is applied to an air-permeable sheet and variably displaced so that the conditioner occludes interior interstitial spaces in certain regions of the sheet to block air flow therethrough, leaving other regions of the sheet with interstitially open spaces.
Claims13
The method of producing a fabric conditioner to be used in a laundry dryer, that includes
- (a) treating an air permeable sheet, including distributing a fabric conditioner composition on the surface of said sheet,
- (b) said treating including variably displacing said distributed composition on the sheet by application of displacing media thereto thereby providing substantially regularly distributed composition concentrations occluding interior interstitial spaces at certain regions of the sheet interior to block airflow therethrough, and greater air permeability at other sheet interior regions located adjacent to and between said concentrations than at said concentrations, said other regions of the sheet characterized by interstitially open spaces including relatively larger spaces from which conditioner composition has been removed by said variable displacement step, and relatively smaller spaces at which conditioner composition remains.
The method of producing a fabric conditioner usable in a laundry dryer that includes applying a fabric conditioner composition to an air-permeable sheet, and projecting gas jets against the sheet variably displacing the applied composition from the paths of the gas jets thereby providing substantially regularly distributed composition concentrations impregnating and occluding interior interstitial spaces in certain regions of the sheet interior to block airflow therethrough, and greater air permeability at other sheet interior regions located adjacent to and between said concentrations than at said concentrations, said other regions of the sheet characterized by interstitially open spaces including relatively larger spaces from which conditioner composition has been removed by said gas jets, and relatively smaller spaces which contain remanent conditioner composition, said jets being projected in spaced relation corresponding to the relative spacing of said other interior regions of the sheet.
The method of producing a fabric conditioner usable in a laundry dryer that includes applying a fabric conditioner composition to an air permeable sheet, projecting gas jets against the sheet and displacing the fabric conditioner composition from the paths of the gas jets and in spaced stripe-like courses on the sheet defining relatively thick and thin concentrations of conditioner composition, the jets being projected in spaced relation corresponding to the spacing of said courses.
The method of producing a fabric conditioner to be employed in a laundry dryer, and using an air permeable sheet that includes
- (a) passing the sheet through a liquid bath of a fabric conditioner composition in a solvent, thereby to impregnate the sheet with said composition,
- (b) removing excess composition from the sheet,
- (c) passing the impregnated sheet through a heating zone to remove said solvent, whereby essentially only dried conditioner composition remains on the sheet,
- (d) directing gas jets at the traveling sheet to blow conditioner composition from predetermined zones of the sheet and to form spaced stripe-like courses of dried conditioner composition remanent on the sheet, the jets being so directed in spaced apart relation corresponding to the spacing of said courses, and
- (e) cooling the sheet, for subsequent sizing.
Dependencies are inferred from the claim text.