Differential Diffusion Patents (Class 8/484)
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Patent number: 9290877Abstract: A glazing method for improving abrasion resistance using a heated smooth roll to melt the lower-melting-point portion of bicomponent fibers as the spunbond web passes over the heated smooth roll. Because there is no external pressure exerted in a nip by an opposing second roller, as in calendering, the outer surface of the web which does not contact the heated smooth roll remains essentially unchanged and the nonwoven fabric exhibits no compression as a result of the glazing process. The roll temperature and dwell time (roll diameter, wrap angle and line speed) are controlled for the purpose of surface treating only one side of the nonwoven fabric to improve abrasion resistance while allowing the air permeability and web thickness to remain essentially unchanged.Type: GrantFiled: May 23, 2013Date of Patent: March 22, 2016Assignee: Ahlstrom CorporationInventors: Mithun A. Shah, Rongguo Zhao
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Patent number: 7674301Abstract: Yarns and fabrics formed from such yarns incorporating an arrangement of discrete zones of variable heat treat history thereby imparting differential dye affinity and structural character at discrete zones along the yarn length are described. The differential dye affinity permits variable shading along the yarn length when the yarn is subjected to a dye bath. Processes and equipment for manufacturing such yarns are also provided.Type: GrantFiled: July 5, 2005Date of Patent: March 9, 2010Inventors: Robert Saul Brown, William M Pascoe
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Patent number: 7014665Abstract: A dyed substrate having at least one dyed surface. At least one dye solution is disposed across at least a portion of the surface in combination with a migration promoting composition and/or a migration limiting composition. The migration promoting composition and/or migration limiting composition adjusts the migration of at least a portion of the dye solution across the substrate in a controlled manner. Dye migration may be arrested by the application of RF (radio frequency) energy as a step in dye fixation. A process for forming the dyed substrate is also provided.Type: GrantFiled: January 6, 2004Date of Patent: March 21, 2006Assignee: Milliken & CompanyInventors: Peter K. Kang, Daniel T. McBride, Anthony R. Chambers, Edwin L. Hersey, Jon L. Williamson, Richard L. Kilpatrick, Cleatus D. Little, Randy G. Meeks
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Patent number: 5180401Abstract: A printed woven blanket is provided which is printed on only one side but has the appearance of having been printed on both sides. A cationic dye is applied to one side of the blanket utilizing a roller which forces the dye into the fabric forming a printed pattern. The printed blanket is dried and then steamed to set the dye. The blanket is napped which further enhances the appearance of the side which is not printed.Type: GrantFiled: September 30, 1991Date of Patent: January 19, 1993Assignee: Beacon Manufacturing CompanyInventors: Daniel B. Owenby, Gene Quesinberry
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Patent number: 4935083Abstract: A process for providing a design patterns in a material wherein a selected medium is applied to the material, the material being positioned adjacent a surface of a template which surface has selected surface characteristics either topographical or non-topographical in nature. The material is held against the template surface at a selected pressure and for a selected time period, at least a portion of the medium coming into contact with the template surface, the adhesive and conesive forces of the material, the medium, and the template interacting with each other to generate a unique design relief pattern on the surface of the material which pattern differs from the pattern characteristics of the template. The material is then suitably dried. The viscosity and amount of the medium, as well as the pressure used, are selected to lie within specified ranges to produce heavy or light relief patterns on permeable or non-permeable materials.Type: GrantFiled: September 21, 1988Date of Patent: June 19, 1990Inventor: Todd L. Siler
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Patent number: 4767584Abstract: A process and system for providing a design pattern in a material wherein a seleced medium is applied to the material, the material being positioned adjacent a surface of a template which surface has selected surface characteristics either topographical or non-topographical in nature. The material is held against the template surface at a selected pressure and for a selected time period, at least a portion of the medium coming into contact with the template surface. The surface characteristics of the template interact with the material and the medium as the medium comes into contact with the surface to produce the desired pattern.Type: GrantFiled: April 3, 1985Date of Patent: August 30, 1988Assignee: Massachusetts Institute of TechnologyInventor: Todd L. Siler
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Patent number: 4622040Abstract: A continuous process for dyeing a pre-wetted carpet includes the step of printing, in one dye color, a desired pattern on the tufts, compressing those of the tufts receiving the dye in the process. The tufted printed surface of the carpet is then covered with a viscous water-soluble gum and then drops of a second dye, which is less viscous than the gum, are applied to the viscous gum-wetted tufts. Then a third dye which is substantially less viscous than the second dye is applied over the entire tufted surface of the carpet.Type: GrantFiled: June 19, 1978Date of Patent: November 11, 1986Assignee: RCA CorporationInventor: David B. Nichols, Jr.
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Patent number: 4622041Abstract: A continuous process for dyeing a carpet in which spaced regions of the tufted side of a pre-wetted carpet are first compressed in a desired pattern. The tufted surface is then covered with a viscous water-soluble gum, and drops of a less viscous gum are then applied to the viscous gum-wetted tufts. Next, drops of a viscous dye are applied to the tufted surfaces and then a less viscous dye is applied over the entire tufted surface of the carpet.Type: GrantFiled: June 19, 1978Date of Patent: November 11, 1986Assignee: RCA CorporationInventor: David B. Nichols, Jr.
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Patent number: 4586934Abstract: Method and apparatus for producing textile yarns so that one surface of the yarn exhibits a visually perceptive darker color hue when compared to another surface of the yarn. The yarn surfaces are coated with a colorant-containing liquid (e.g. a dye- or pigment-containing liquid) and are subsequently dried to effect a drying rate differential between the one and another surfaces to cause the colorants to migrate towards the faster-drying surface to a degree sufficient to achieve the darker color hue thereon. Twisting of the produced yarns during packaging and/or weaving will thus create a woven textile fabric having randomly distributed color variations to achieve a visually pleasing striated, tone-on-tone or heather fabric appearance.Type: GrantFiled: March 22, 1985Date of Patent: May 6, 1986Assignee: Burlington Industries, Inc.Inventors: Paul B. Blalock, William C. Schwartz
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Patent number: 4520063Abstract: A forgery-proof flat article, for example, for the production of banking cards, credit cards, and the like, is provided with a security feature analogous to a watermark and is made of thermoplastic and elastomeric synthetic resins based on transparent, translucent, or colored sheets made by extrusion, calendering, blow-molding, or spread coating, or composite sheets therefrom, with an application of a colorant, capable of migrating, to the surface in the presence of a crosslinkable component in the flat article and/or in the colorant application. The colorant application, upon reaching the desired migration depth of the applied colorant, is fixed in the flat article by a crosslinking reaction.Type: GrantFiled: July 20, 1982Date of Patent: May 28, 1985Assignee: Dynamit Nobel AktiengesellschaftInventors: Manfred Simon, Karl-Heinz Spiess, Richard Weiss
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Patent number: 4378225Abstract: A process for printing of fabrics to impart a controlled diffused print effect thereon which comprises in printing the fabric with a suitable printing paste having an auxiliary agent which normally has a capillary action, said capillary action being reversed during the step of printing, drying the fabric and then subjecting the fabric to the step of fixing the dye and activation of the capillary action of the auxiliary agent.Type: GrantFiled: January 29, 1981Date of Patent: March 29, 1983Inventors: Krishnakan G. Shah, Kanaiyalal D. Pancholi, Jugdish I. Setalvad
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Patent number: 4338090Abstract: Process of producing and a resulting simulated "Berber" yarn produced from long staple spun or continuous filament yarn, preferably having continuous filaments or fibers at least six inches in length, and more preferably continuous filament nylon, to provide strength and other desired characteristics of such yarn while simulating the natural aesthetic appearance of "Berber" wool yarn. The yarn, preferably after having been initially completely dyed with a base color, is surface dyed at selected areas of varying sizes and random locations along the length of the yarn with heather colors or shades which do not penetrate all the way through the yarn for simulating varying staple lengths of natural wool fibers, and is thereafter dyed on small selected areas of the yarn at random locations along the length with one or more "Berber" accent colors which penetrate all the way through the yarn for simulating small clumps of very short natural wool fibers.Type: GrantFiled: April 10, 1980Date of Patent: July 6, 1982Assignee: Rossville Yarn Processing CompanyInventor: William F. Hutcheson
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Patent number: 4327464Abstract: Process of producing and a resulting simulated "Berber" yarn produced from long staple spun or continuous filament yarn, preferably having continuous filaments or fibers at least six inches in length, and more preferably continuous filament nylon, to provide strength and other desired characteristics of such yarn while simulating the natural aesthetic appearance of "Berber" wool yarn. The yarn, preferably after having been initially completely dyed with a base color, is surface dyed at selected areas of varying sizes and random locations along the length of the yarn with heather colors or shades which do not penetrate all the way through the yarn for simulating varying staple lengths of natural wool fibers, and is thereafter dyed on small selected areas of the yarn at random locations along the length with one or more "Berber" accent colors which penetrate all the way through the yarn for simulating small clumps of very short natural wool fibers.Type: GrantFiled: May 21, 1979Date of Patent: May 4, 1982Assignee: Rossville Yarn Processing CompanyInventor: William F. Hutcheson
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Patent number: 4297099Abstract: A process for producing colored synthetic resin sheet material having a unicolored or multicolored dye coating applied to one surface thereof and extending into said surface in a uniform manner involves applying a dye-containing material or composition to at least one selective portion of the surface of a synthetic resin sheet material that contains at least one reactive, crosslinkable component, where the dye-containing material is capable of migrating into a non-porous sheet formed of the synthetic resin; controlling the migration of the dye material into the sheet material to a desired depth; and then initiating crosslinking of the crosslinkable component to stop further migration of the dye-containing material.Type: GrantFiled: November 15, 1978Date of Patent: October 27, 1981Assignee: Dynamit Nobel AktiengesellschaftInventors: Manfred Simon, Erwin Moschter, Karl-Heinz Spiess, Richard Weiss