Acelon Chemical and Fiber Corporation Patent applications |
Patent application number | Title | Published |
20130234354 | MELTBLOWN PROCESS FOR PRODUCING NON-WOVEN FABRICS WITH FLAME-RETARDING CAPABILITY FROM NATURAL CELLULOSE - A Meltblown process for producing non-woven fabrics with flame-retarding capability from natural cellulose comprises following steps. Blend pulp and solvent of N-methylmorpholine N-oxide (NMMO) to form slurry. Evaporate water content from slurry by a Thin Film Evaporator to form dope. Extrude the dope off spinneret bank to form filament bundle via meltblown process. Coagulating regenerate, water rinse, hydro-entangled needle-punch and dry the filament bundle to form normal natural cellulose nonwoven. Soaking roll formed nonwoven by flame retardant of N-(hydroxymethyl)-3-(methoxy phosphorus acyl). Orderly dry, bake, neutralize, soaping clean, water rinse, baking dry, soaking roll, alkaline clean, water rinse, dry and coil the nonwoven to produce modified natural cellulose nonwoven of flame retarding capacity. Because of cross-linking reaction between foregoing flame retardant and natural cellulose nonwoven, the flame-retarding capability thereof meet requirements of testing standards in American ASTM D6413-1999 and ASTM D2863-1995. Moreover, the wastes thereof meet environmental protection requirements. | 09-12-2013 |
20130228949 | FABRICATION OF NATURAL CELLULOSE FIBER WITH FLAME-RETARDING CAPABILITY - A fabrication of natural cellulose fiber with flame-retarding capability comprises following steps. Blend pulp and solvent of N-methylmorpholine N-oxide (NMMO) to form slurry. Evaporate extra water content from slurry by a Thin Film Evaporator (TFE) to form dope. By Dry-Jet Wet Spinning, spin and extrude dope for coagulating and regenerating. Water-rinse and dry to form natural cellulose fiber. Soaking roll natural cellulose fiber by flame retardant of N-(hydroxymethyl)-3-(methoxy phosphorus acyl). Orderly dry, bake, neutralize, soaping clean, water rinse, baking dry, soaking rolled, alkaline clean, water rinse, dry and oil the natural cellulose fiber to produce natural cellulose fiber of flame retarding capacity. Because of cross-linking reaction for the flame retardant of N-(hydroxymethyl)-3-(methoxy phosphorus acyl) with natural cellulose fiber, the flame-retarding capability thereof meet requirements of testing standards in American ASTM D6413-1999 and ASTM D2863-1995. Moreover, the wastes thereof meet the requirements of environment protections without harm. | 09-05-2013 |
20110156303 | SPUNBOND WETLAID METHOD FOR PRODUCING NON-WOVEN FABRICS FROM NATURAL CELLULOSE - The present invention provides a “spunbond wetlaid method for producing non-woven fabrics from natural cellulose” using pulp as raw material and N-methylmorpholine N-oxide (NMMO) as solvent for dissolving into dope. Then, the dope is extruded out of a spinneret to form filament bundle by spunbond method. The dope is extruded out of a spinneret bank of grouped spinnerets to form filament bundle for further stretching process under quench condition. The filament bundle is coagulated with regeneration in a coagulating solution. The coagulated filament bundle is rapidly stretched under high pressure by an air draw-off machine. The stretched filament bundle is collected and stacked on a collecting net as web nonwoven. After post treatments of water rinsing, hydro-entangled needle punching, drying, winding-up and the like have been orderly applied then final product of nonwoven fabrics with continuous filament are produced from natural cellulose. | 06-30-2011 |
20110156299 | MELTBLOWN WETLAID METHOD FOR PRODUCING NON-WOVEN FABRICS WITH ANTI-MILDEW, ANTI-BACTERIA AND DEODORIZING CAPABILITIES FROM NATURAL CELLULOSE - The present invention provides a meltblown wetlaid method for producing non-woven fabrics with anti-mildew, anti-bacteria and deodorizing capabilities from natural cellulose. The method comprises selecting wood pulp as raw material and using N-methylmorpholine N-oxide (NMMO) as dissolving solvent and 1,3-phenylene-bis 2-oxazoline (BOX) as stabilizer to form mixed cellulose mucilage as well as using modified and nano-miniaturized natural chitosan as additive for blending and dissolution to form cellulose dope. By meltblown method, the dope is extruded out of spinnerets to form filament bundle, then by ejecting mist aerosol of water, the filament bundle is coagulated with regeneration. After post treatments of water rinsing, hydro-entangled needle punching, drying, winding-up and the like having been orderly applied, then final product for nonwoven fabric of continuous filament with anti-mildew, anti-bacteria and deodorizing capabilities is produced. | 06-30-2011 |
20110154627 | Meltblown wetlaid method for producing non-woven fabrics from natural cellulose - The present invention provides a meltblown wetlaid method for producing non-woven fabrics from natural cellulose using pulp as raw material and N-methylmorpholine N-oxide (NMMO) as solvent for dissolving into dope. The dope is then extruded out of a spinneret to form filament bundle by meltblown method. Subsequently, by means of ejecting mist aerosol of water, the filament bundle is coagulated with regeneration. Via post treatments of water rinsing, hydro-entangled needle punching, drying, winding-up and the like have been orderly applied, then final product of nonwoven fabrics with continuous filament are produced from natural cellulose. | 06-30-2011 |
20090166916 | Processing method of the natural cellulose fiber with feature for enhancing the capability of antifungi, antibacteria and deodorization - The present invention provides a processing method of the natural cellulose fiber with feature for enhancing the capability of antifungi, antibacteria and deodorization. The procedure is that firstly modify and reduce the properties of the natural chitosan of high polymer material to nanometer scale; secondly dunk the chitosan into the syrup-like mixture of wood pulp and NMMO solvent to yield quasi-dope; thirdly dehydrate the quasi-dope of paste mixture to form the mud-like dope; fourthly spin the dope by dryjet wet spinning method; fifthly regenerate the filament in coagulation bath, water rinse and dry; finally water rinse, dry, apply the lubricant to finish. The water soluble chitosan, which has been treated by property modification and reduced to nanometer scale, can effectively and completely solve in the cellulose of low DP to offer wider extent of selection in the DP and better flexibility of adding percentage in content of modified chitosan. | 07-02-2009 |