摘要:
Nonwovens having low-density and resilience have a chemical formulation applied on one surface (e.g., a top surface) by any of various application methods. Then, the chemical formulation is forced to move toward the opposite surface of the nonwoven (e.g., move downward through the nonwoven from top to bottom). The chemical-treated nonwoven is dried to fix the chemical on the nonwovens. Movement through the nonwoven is performed in a controlled fashion so that after drying the distribution of a chemical formulation throughout the nonwoven (e.g., from the top surface to the bottom surface of a nonwoven) is controlled.
摘要:
Processes and apparatus are disclosed which substantially eliminate the formation of oxidized indigo dye before and during dye application onto a natural fiber yarn or fabric while allowing the leuco-indigo dye molecule to diffuse fully into the natural fibers of the yarn where it can fix to the fibers prior to oxidation (i.e., exposure of the leuco-dyed yarns to oxygen). Indigo dyed textile products (e.g., dyed cotton yarns that may be twill woven to form a denim fabric) exhibit exceptionally high colorfastness as determined by the AATCC Crock Test.
摘要:
Processes and apparatus are disclosed which substantially eliminate the formation of oxidized indigo dye before and during dye application onto a natural fiber yarn or fabric while allowing the leuco-indigo dye molecule to diffuse fully into the natural fibers of the yarn where it can fix to the fibers prior to oxidation (i.e., exposure of the leuco-dyed yarns to oxygen). Indigo dyed textile products (e.g., dyed cotton yarns that may be twill woven to form a denim fabric) exhibit exceptionally high colorfastness as determined by the AATCC Crock Test.
摘要:
A fabric, such as a loop fastener material, is finished by applying a foam to a surface of the fabric, the foam containing both a liquid binder and a powder. The binder is allowed to flow into pores of the fabric and coat fiber interstices of the fabric as the foam collapses, and is dried to stabilize the fabric. The powder is of a particle size selected to cause most of the powder to remain on the surface of the fabric while the binder is dried to bond the powder to the fabric surface. The powder, as bonded to the fabric surface, is activatable, such as by heat or RF or UV energy, to adhere the stabilized fabric to another surface or to provide a desired surface property.
摘要:
An apparatus for dyeing a textile substrate using a plurality of applicators that each apply an increment of a total dye application. In one form a reduced indigo dye in a leuco-state is applied in an inert atmosphere substantially isolated from oxidizing substances. In another form the foamed dye is applied while open to the atmosphere. In both forms holddown rollers or inverted applicators are located between applicators at decreasing depths to minimize increases in tension as the substrate travels over successive applicator faces.
摘要:
A device (100) is described, together with a continuous dyeing process with indigo and reduction dyes for warp yarn chains (3) and/or fabrics. The device (100) comprising at least one hermetically sealed dyeing compartment (1), and at least one hermetically sealed compartment (2) for the diffusion and fixing of the dye on the yarn (3). The compartment (2) is situated downstream of the dyeing compartment (1) and is functionally and hermetically connected to the dyeing compartment (1) by means of a tunnel (4). Means (12) are present inside the compartments (1, 2) and tunnel (4), for the entry of inert gas or deoxygenated air. One or more means (14, 14′) for the direct application of the dye onto the yarn (3) are also present inside the dyeing compartment (1), whereas at least one tank (8) for humidifying the environment and at least one means (7) for heating the yarn (3) leaving the dyeing compartment (1), are present in the compartment (2).
摘要:
Dyeing a cellulosic textile substrate with reduced indigo dye in a leuco state after foaming with an inert gas to maintain the dye isolated from oxidizing substances. Following application of the foam to the substrate, it is exposed to the adjacent atmosphere, with the oxygen in the atmosphere oxidizing the reduced indigo dye to regenerate it and cause it to affix to the textile substrate. A product can be produced using the method and apparatus of the present invention that has different dye characteristics on opposite surfaces of the substrate by applying the indigo dye foam to one surface and another dye, either an indigo dye or some other dye to the opposite surface.
摘要:
A coater for applying foamed coating material to a traveling textile substrate including a frame, a flush pan, an applicator having an open slot, a pivot shaft journaled in a pair of support arms that are pivotally mounted to the frame and piston-cylinder mechanisms to move the applicator between an operating position wherein the open slot is adjacent the traveling substrate and a flush position wherein the open slot is adjacent the flush pan by pivoting the support arms and rotating the pivot shaft. Foamed coating material is applied by supporting the traveling substrate between two spaced support elements, contacting the traveling substrate with a foam applicator, and forcing a metered amount of foamed material at least partially into the interstices of the textile substrate before the foamed coating material collapses. A metered amount of foamed coating material is applied onto or into a textile substrate regardless of textile substrate structure and regardless of the viscosity of the coating material. The foamed coating material may be flushed from the coater by stopping flow of foamed material through the applicator, moving the applicator to the flush position, and commencing flow of a flushing fluid through the applicator and into the flush pan. Foamed coating material may also be flushed from the applicator by stopping flow of foamed material through the applicator, commencing flow of a flushing foam through the applicator, stopping flow of flushing foam through the applicator, and commencing flow of a flushing fluid through the applicator.
摘要:
The present invention is a foam applicator system for applying foam to a tissue web. The foam applicator system comprises a foam applicator capable of applying a liquid-based composition to a tissue web. The foam applicator includes an extrusion head comprising a first nozzle bar and a second nozzle bar and having an inner surface and an outer surface. A first end of a flexible scraper is operatively associated with the first nozzle bar of the extrusion head. A second end of the flexible scraper outward from the first end of the flexible scraper. The foam applicator system may also comprise a vacuum slot positioned opposing the extrusion head with the tissue web therebetween.
摘要:
The invention involves a process for foam treating pile fabrics, especially carpets, by applying a foam composition through the backing of the fabric. The fabric is wrapped partially around the foam applicator at a wrap angle of at least 60 degrees, while the facing of the fabric is free of pressure. A foam applicator is also taught.