Patent ID: 8420005

Claim:
A meltblown wetlaid method for producing non-woven fabrics with anti-mildew, anti-bacteria and deodorizing capabilities from natural cellulose, comprising the steps of: (a) selecting wood pulp as raw material, wherein said wood pulp comprises pulp cellulose of staple or filament with cellulose content over 85% and degree of polymerization (DP) between 500 to 1200; (b) adding N-methylmorpholine N-oxide (NMMO) as dissolving solvent and 1,3-phenylene-bis 2-oxazoline (BOX) as stabilizer into the wood pulp to form mixed cellulose mucilage; (c) adding and blending modified and nano-miniaturized natural chitosan into the mixed cellulose mucilage to form a cellulose dope via rapidly grinding, blending and dissolving the mixed cellulose mucilage under low temperature of between 60 to 80° C. by horizontal dope blending machine; (d) dehydrating the cellulose dope via heating to a temperature of between 80 to 120° C. by vacuum thin film evaporator for 5 minutes to decrease the water content of the cellulose dope down to 5 to 13% so that a homogenized mucilaginous dope is formed; (e) extruding the homogenized mucilaginous dope out of spinnerets by a meltblown method to form a filament bundle; and (f) coagulating the filament bundle with regeneration by ejecting mist aerosol of water; and (g) treating the filament bundle with water rinsing, hydro-entangled needle punching, drying, and winding-up to obtain the nonwoven fabric of continuous filament with anti-mildew, anti-bacteria and deodorizing capabilities.