A fire resistant fluff pulp web made from a fluff pulp web, a fire retardant component present in and/or on the fluff pulp, and a fire retardant distributing surfactant which distributes the fire retardant component in and/or on the fluff pulp web in a manner so that the fluff pulp web passes one or
A fire resistant fluff pulp web made from a fluff pulp web, a fire retardant component present in and/or on the fluff pulp, and a fire retardant distributing surfactant which distributes the fire retardant component in and/or on the fluff pulp web in a manner so that the fluff pulp web passes one or more fire resistance tests. Also, a process for preparing these fire resistant fluff pulp webs, as well as for treating outer fibrous layers comprising an air-laid mixture of these fire resistant fluff pulp fibers and bicomponent fibers with up to about 5% additional fire retardant and which are used in fire resistant air-laid fibrous structures useful in upholstery, cushions, mattress ticking, panel fabric, padding, bedding, insulation, materials for parts in devices and appliances, etc.
대표청구항▼
1. An article comprising a fire resistant fluff pulp web comprising: a fluff pulp web comprising above about 45% unrefined softwood fibers and having: a basis weight above about 40 gsm;a caliper of at least about 30 mils;a fiberization energy of less than about 170 kJ/kg; anda moisture content of le
1. An article comprising a fire resistant fluff pulp web comprising: a fluff pulp web comprising above about 45% unrefined softwood fibers and having: a basis weight above about 40 gsm;a caliper of at least about 30 mils;a fiberization energy of less than about 170 kJ/kg; anda moisture content of less than about 16%; anda fire retardant component present in and/or on the fluff pulp web in an amount of up to about 150 lbs fire retardant component per ton of the fluff pulp web, the fire retardant component comprising: from about 50 to about 98.5% by weight of the fire retardant component of one or more retardants; andfrom about 1.5 to about 50% by weight of the fire retardant component of one or more organic amine fire retardant dispersants; andone or more fire retardant distributing surfactants which distribute the fire retardant component in and/or on the fluff pulp web;wherein the fire retardant component is in an amount and is distributed in and/or on the fluff pulp web in a manner so that the fire resistant fluff pulp web passes one or more of the following tests: the UL 94 TMVB test, or the Horizontal Burn Through test. 2. The article of claim 1, wherein the fluff pulp web comprises above about 45% unrefined softwood fibers. 3. The article of claim 2, wherein the fluff pulp web comprises above about 75% unrefined softwood fibers. 4. The article of claim 1, wherein the fluff pulp web has a basis weight above about 135 gsm. 5. The article of claim 4, wherein the fluff pulp web has a basis weight above about 200 gsm. 6. The article of claim 1, wherein the fluff pulp web has fiberization energy of less than about 135 kJ/kg. 7. The article of claim 6, wherein the fluff pulp web has fiberization energy of less than about 129 kJ/kg. 8. The article of claim 1, wherein the fluff pulp web has a caliper of from about 30 to about 85 mils. 9. The article of claim 8, wherein the fluff pulp web has a caliper of from about 45 to about 65 mils. 10. The article of claim 1, wherein the fluff pulp web has a moisture content of less than about 12%. 11. The article of claim 10, wherein the fluff pulp web has a moisture content of about 7% or less. 12. The article of claim 1, wherein the one or more fire retardants comprise: one or more phosphorous fire retardants, one or more halogenated hydrocarbon fire retardants, or one or more metal oxide fire retardants. 13. The article of claim 12, wherein the one or more fire retardants comprise, by weight of the total fire retardant: from about 50 to 100% of the one or more phosphorous fire retardants, from 0 to about 10% of the one or more halogenated hydrocarbon fire retardants, and from 0 to about 40% of the one or more metal oxide fire retardants. 14. The article of claim 13, wherein the one or more fire retardants comprise a mixture of, by weight of the total fire retardant: from about 50 to 95% of the one or more phosphorous fire retardants, from about 1 to about 10% of the one or more halogenated hydrocarbon fire retardants, and from about 4 to about 40% of the one or more metal oxide fire retardants. 15. The article of claim 14, wherein the mixture of one or more fire retardants comprises ammonium phosphates, halogenated alkanes, and antimony trioxide. 16. The article of claim 1, wherein the fire retardant component comprises: from about 80 to about 95% by weight of the fire retardant component of the one or more fire retardants; and from about 5 to about 20% by weight of the fire retardant component of the one or more organic amine fire retardant dispersants. 17. The article of claim 16, wherein the one or more organic amine fire retardant dispersants comprises one or more debonder surfactants. 18. The article of claim 17, wherein the one or more organic amine fire retardant dispersants comprises one or more of: linear or branched monoalkyl amines, linear or branched dialkyl amines, linear or branched tertiary alkyl amines, linear or branched quaternary alkyl amines, fatty acid amide quaternary ammonium salts, dialkyl dimethyl quaternary ammonium salts, dialkylimidazolinium quaternary ammonium salts, dialkyl ester quaternary ammonium salts, triethanolamine-ditallow fatty acids, fatty acid ester of ethoxylated primary amines, or ethoxylated quaternary ammonium salts. 19. The article of claim 1, wherein the one or more fire retardant distributing surfactants are in a weight ratio to the fire retardant component of from about 1:5 to about 1:40. 20. The article of claim 19, wherein the one or more fire retardant distributing surfactants are in a weight ratio to the fire retardant component of from about 1:10 to about 1:20. 21. The article of claim 20, wherein the fire retardant distributing surfactant comprises: one or more ethoxylated alcohols. 22. The article of claim 21, wherein the one or more ethoxylated alcohols comprise from about 1 to about 30 ethylene oxide units and an alcohol carbon chain length of from about 6 to about 30 carbon atoms. 23. The article of claim 22, wherein the one or more ethoxylated alcohols comprise from about 4 to about 25 ethylene oxide units and an alcohol carbon chain length of from about 6 to about 22 carbon atoms. 24. The article of claim 23, wherein the alcohol carbon chain length is from about 12 to about 18 carbon atoms. 25. The article of claim 24, wherein the alcohol carbon chain length is from about 16 to about 18 carbon atoms. 26. The article of claim 1, wherein the fire retardant component is in an amount in the range of from about 55 to about 90 lbs fire retardant component per ton of the fluff pulp web. 27. The process of claim 26, wherein the fire retardant component is in an amount in the range of from about 60 to about 70 lbs fire retardant component per ton of the fluff pulp web.
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