Abstract:
A process for rendering carpet fiber resistant to stains and soil comprising (a) applying to carpet fiber a first aqueous medium of at least one stain resist, (b) applying to carpet fiber a second distinct aqueous medium of at least one fluorochemical soil resist, without any intervening steaming or rinsing, and (c) drying the carpet, is disclosed.
Abstract:
A process for producing a treated textile product which comprises (1) the step of preparing a treating fluid containing a water-and-oil repellant, (2) the step of adjusting the pH of the treating fluid to 7 or lower, preferably 3 or lower, (3) the step of applying the resultant treating fluid to a textile product, (4) the step of treating the textile product with steam, and (5) the step of washing the textile product with water and dehydrating it, wherein the water-and-oil repellant is an emulsion containing one or more fluorine compounds and an emulsifying agent, the fluorine compounds comprise a fluoropolymer and/or a low-molecular fluorine compound, and the emulsifying agent is an anionic surfactant having a pKa of 2 or higher. By the process, a textile product is obtained which has such durability that sufficient water and oil repellency and sufficient unsusceptibility to fouling are maintained before and after cleaning.
Abstract:
A method of imparting stain resistance to colored substrates which include a filamentary material. A first dispersion of a polymer is applied to the filamentary material as a finish during the manufacture of the filamentary material, and a second dispersion of a polymer is applied as an overspray after the filamentary material has been formed into a colored substrate, to achieve at least 300 ppm fluorine from each application on the filamentary material (at least 600 ppm fluorine total). The dispersions are independently selected from the group consisting of i. a first polymer comprising (a) from about 50 to about 85 parts by weight of units derived from a fluorinated monomer or mixture of fluorinated monomers having formula (I); and (b) from about 15 to about 50 parts by weight of units derived from one or more monomers having formula (II); and ii. a dispersion comprising (a) from about 10 to about 50 parts by weight the first polymer; (b) from about 5 to about 10 parts by weight an emulsifier; and (c) from about 40 to 85 parts by weight a second polymer derived from a monomer having formula (III) wherein Rf is straight or branched-chain perfluoroalkyl containing 4-20 carbon atoms; R is H or CH3; n is an integer from 1-15; and X is Cl or Br.
Abstract:
A low melting, high solids spin finish compositions is provided that can be readily applied to synthetic fibers during the fiber-making process. The spin finish solids, which make up at least about 70 % by weight of the spin finish composition, comprise nonionic hydrocarbon surfactant components, such as polyoxyalkylenes, which have a value of from about 2 to 13 and a melting point within the range of about 25 DEG C to about 140 DEG C. In some embodiments, the spin finish composition also includes select fluorochemicals.
Abstract:
The present invention provides a method for preparing a fluorochemical composition comprising a urethane by reacting: (A) fluorochemical oligomer of the formula (I): M mMn-Q -T wherein M mMn represents a fluorochemical oligomer comprising m units derived from fluorinated monomer and n units derived from fluorine-free monomer and wherein the fluorinated monomers and fluorine-free monomers may be the same or different; m is a value of about 2 to 40; n is a value of about 0 to 20; T is an -OH or -NH2 moiety; Q and T together represent an organic residue obtained by removing a hydrogen atom from a chain transfer agent that is functionalized with T ; (B) monofunctional compound capable of reacting with an isocyanate and comprising a poly(oxyalkylene) group; (C) isocyanate blocking agent or a fluorine-free oligomer; and (D) isocyanate-reactive compound other than said fluorochemical oligomer, said isocyanate blocking agent, said fluorine-free oligomer and said monofunctional compound; with (E) diisocyanate or a triisocyanate, wherein 33 % to 67 % of the number of isocyanate groups are reacted with the fluorochemical oligomer according to the formula (I), 33 % to 67 % of the number of isocyanate groups are reacted with said monofunctional compound, 0 to 33 % of the number of isocyanate groups are reacted with an isocyanate blocking agent or a fluorine-free oligomer and 0 to 10 % of the number of isocyanate groups are reacted with said isocyanate-reactive compound. Substrates treated with the fluorochemical composition made according to the method described above have good stain release properties particularly for oily stains and water-based stains such as wine, tea and coffee.
Abstract:
A textile having high fluorine adhesion rate, and excellent water- and oil-repellency can be obtained by a method of producing a treated textile, comprising steps of: (1) preparing a treatment liquid comprising a water- and oil-repellent agent which comprises at least one fluorine-containing compound selected from the group consisting of a fluorine-containing polymer or a fluorine-containing low molecular weight compound, (2) adjusting pH of the treatment liquid to at most 7, (3) applying the treatment liquid to a textile, (4) treating the textile with steam, and (5) washing the textile with water and dehydrating the textile, wherein the treatment liquid comprises a thermally gelling substance and a salt.
Abstract:
The present invention provides a method for preparing a fluorochemical composition comprising polyurethane by reacting: (A) fluorochemical oligomer of formula (I): M mMn-Q -T wherein: M mMn represents flurochemical oligomer comprising m units derived from fluorinated monomer and n units derived from fluorine-free monomer and wherein the fluorinated monomers and fluorine-free monomers may be the same or different; m represents a value of 2 to 40; n represents a value of 0 to 20; T is -OH or -NH2; Q and T together represent an organic residue obtained by removing a hydrogen atom from a chain transfer agent that is functionalized with T ; and (B) difunctional compound capable of reacting with an isocyanate and comprising a poly(oxyalkylene) group having 18 to 280 oxyalkylene moieties with (C) diisocyanate or triisocyanate. Substrates treated with the fluorochemical composition prepared according to the method described above, have good stain release properties in particular for oily stains and water based stains such as wine, tea and coffee.
Abstract:
A method for preparing a fluorochemical composition comprising a polyurethane by reacting: (A) fluorochemical oligomer of formula (I): M mMn-Q -T , wherein: M mMn represents fluorochemical oligomer comprising m units derived from fluorinated monomer and n units derived from fluorine-free monomer and wherein the fluorinated monomers and fluorine-free monomers may be the same or different; m represents a value of 2 to 40; n represents a value of 0 to 20; T is -OH or -NH2; Q and T together represent the organic residue obtained by removing a hydrogen atom from a chain transfer agent that is functionalized with T ; (B) difunctional compound capable of reacting with an isocyanate; (C) monofunctional compound capable of reacting with an isocyanate and comprising a poly(oxyalkylene) group with (D) triisocyanate. Substrates treated with fluorochemical compositions prepared according to the method, have good stain release properties, particularly for oily stains and water based stains such as wine, tea and coffee.
Abstract:
A soil resist, oil and water repellent agent comprising a dispersion of a polyfluoro organic compound having at least one of a urea, urethane, or ester linkage, at least one anionic non-fluorinated surfactant, a nonfluorinated vinyl polymer, and amorphous silicon dioxide, particularly useful on fibers and yarns containing residual spin finish.
Abstract:
A textile having high fluorine adhesion rate, and excellent water- and oil-repellency can be obtained by a method of producing a treated textile, comprising steps of: (1) preparing a treatment liquid comprising a water- and oil-repellent agent which comprises at least one fluorine-containing compound selected from the group consisting of a fluorine-containing polymer or a fluorine-containing low molecular weight compound, (2) adjusting pH of the treatment liquid to at most 7, (3) applying the treatment liquid to a textile, (4) treating the textile with steam, and (5) washing the textile with water and dehydrating the textile, wherein the treatment liquid comprises a thermally gelling substance.