Deodorizing fiber

Abstract

A deodorizing fiber is obtained by adding a modified deodorizing powders and a dispersing agent to be mix granulated and spun in a polyester material, and the deodorizing fiber has a fineness between 1 to 10 dpf. The deodorizing fiber satisfies the following conditions: according to the ISO17299 test, a concentration of 100 ppm ammonia and 30 ppm acetic acid is reduced by more than 70% within 2 hours, and the deodorizing effect is 70% or more after washing for 0 times and 10 times.

What is claimed is: 
     
         1 . A deodorizing fiber obtained by melt spinning a deodorizing masterbatch, characterized in that the deodorizing masterbatch includes the following components and the sum of the components based on the total weight of the deodorizing masterbatch is 100% by weight:
 (a) 50-95 wt % of a thermoplastic polymer selected from polyester powders or polyester granules having an intrinsic viscosity from 0.2 to 2.0;   (b) 1-30 wt % of modified deodorizing powders which are selected from one or more than one of the oxidation or the composite oxides of aluminum, titanium, zinc, silicon, iron and zirconium elements modified by a silane coupling agent or a phthalate modifier, and the modified deodorizing powder has a particle size of 1 μm; and   (c) 0.01-5 wt % of an antioxidant;   wherein the deodorizing fiber satisfies the following conditions:   according to the ISO17299 test, a concentration of 100 ppm ammonia and acetic acid is reduced by more than 70% within 2 hours, and the deodorizing effect is 70% or more after washing for 0 times and 10 times.   
     
     
         2 . The deodorizing fiber according to  claim 1 , wherein the deodorizing masterbatch has a pressure value of less than or equal to 0.5 bar/g. 
     
     
         3 . The deodorizing fiber according to  claim 1 , wherein the deodorizing masterbatch has a fiber fineness of from 1 to 10 dpf. 
     
     
         4 . The deodorizing fiber according to  claim 2 , wherein the deodorizing masterbatch has a fiber fineness of from 1 to 10 dpf. 
     
     
         5 . The deodorizing fiber according to  claim 3 , wherein the fiber structure of the deodorizing fiber is a core-sheath type structure, a core portion being polyester, a sheath portion including the modified deodorizing powders, and a core-sheath ratio of the deodorizing fiber being between 40:60 and 60:40. 
     
     
         6 . The deodorizing fiber according to  claim 4 , wherein the fiber structure of the deodorizing fiber is a core-sheath type structure, a core portion being polyester, a sheath portion including the modified deodorizing powders, and a core-sheath ratio of the deodorizing fiber being between 40:60 and 60:40. 
     
     
         7 . The deodorizing fiber according to  claim 3 , wherein the diameter of the deodorizing fiber is from 10 μm to 30 μm. 
     
     
         8 . The deodorizing fiber according to  claim 4 , wherein the diameter of the deodorizing fiber is from 10 μm to 30 μm. 
     
     
         9 . The deodorizing fiber according to  claim 1 , wherein the modified deodorizing powders further include 0.1-20 wt % of the silane coupling agent or the phthalate modifier. 
     
     
         10 . The deodorizing fiber according to  claim 1 , wherein the modified deodorizing powders further include 1-10 wt % of 3-acryloxypropyltrimethoxysilane or stearyl titanate. 
     
     
         11 . The deodorizing fiber according to  claim 1 , wherein the intrinsic viscosity of the thermoplastic polymer is 0.8. 
     
     
         12 . The deodorizing fiber according to  claim 1 , wherein the antioxidant is a hindered phenol type antioxidant or a phosphite type antioxidant. 
     
     
         13 . The deodorizing fiber according to  claim 1 , wherein the antioxidant is bis(2,6-di-tert-butyl-4-methylphenyl)pentaerythritol diphosphite.