Bag for home dry cleaning process
AssigneeMilliken & Company
InventorsRandolph S. Kohlman, Allan W. Smith, Thomas E. Godfrey, Charles E. Willbanks, Allen M. Smith
Life of this patent
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Abstract
A flexible container in the form of a bag is described for use in a non-immersion dry cleaning process. Bag walls that are appropriately stiff and slick are preferred (preferred Kawabata Evaluation System stiffness and surface friction values are given), as are bag designs that are inherently three-dimensional and self-supporting. A preferred embodiment is a tetrahedral bag having a slick polymeric coating on the interior surface.
Claims16
An inherently two-dimensional containment bag for articles to be cleaned in a textile cleaning process, said cleaning process being comprised of placing articles to be cleaned into said bag through an opening having a closure means, securing said closure means, and subjecting said articles within said bag to a tumbling action in the presence of a cleaning agent, said containment bag being comprised of a sheet material having a minimum average Kawabata stiffness value of at least about 0.6 gins (force) cm2/cm. and a maximum average Kawabata stiffness value of about 3.0 gins (force) cm2/cm., and wherein the interior surface of said bag has a maximum average Kawabata surface friction value of about 0.35.
An inherently three-dimensional containment bag for articles to be cleaned in a non-immersion textile cleaning process, said bag having sufficient inherent structural rigidity to be substantially self-supporting, said bag being comprised of at least two panels, said panels being joined along at least one seam, said seam forming a rigidifying wall discontinuity, wherein said bag is comprised of two panels and a closure means, wherein said bag, when empty and with said closure means disengaged, is in the form of a flat bag having a closed bottom and an open top, said bag being characterized by having a first seam extending across the width of said bag and forming said closed bottom of said bag, and further having a second seam and a third seam, said second and said third seams being substantially parallel to each other and each being substantially perpendicular to said first seam and extending from a respective point that is located within a substantially central region along the length of said first seam in the direction of said open top.
Dependencies are inferred from the claim text.