Textile fiber or web, methods and use related thereto

Abstract

The invention concerns a textile fiber or textile web having a binary polymer composition, which binary polymer composition included a first polymer being cellulose acetate propionate and a second polymer selected from several polymers. Furthermore, a method and use related thereto are described.

1 . A textile fiber or textile web comprising a binary polymer composition, characterized in that the binary polymer composition comprises a first polymer being cellulose acetate propionate (CAP), and a second polymer being polybutylene succinate (PBS), and the total amount of said first and said second polymer is at least 80 weight % based on the total weight of said binary polymer composition. 
     
     
         2 . The textile fiber or textile web according to  claim 1 , wherein the binary polymer composition comprises a further polymer selected from the group consisting of polypropylene succinate (PPS), polybutylene succinate adipate (PBSA), polybutylene adipate terephthalate (PBAT), polylactic acid (PLA), polycaprolactone (PCL), polybutylene adipate (PBA), polyhydroxyalkanoate (PHA), polyhydroxybutyrate (PHB), polyethylene furanoate (PEF), polybutylene terephthalate (PBT), polybutylene succinate terephthalate (PBST), and any polyester containing sebacic and/or azelaic acid and/or dodecanedioic acid as dicarboxylic acid alone or in combination with terephthalic acid, and any combination of these. 
     
     
         3 . The textile fiber or textile web according to  claim 1 , wherein said binary polymer composition comprises
 said first polymer in an amount of 5 to 95 weight-%, and   said second polymer in an amount of 95 to 5 weight-%   based on the total weight of said binary polymer composition.   
     
     
         4 . The textile fiber or textile web according to  claim 1 , wherein the total amount of said first polymer and said second polymer is at least 80 wt. %, or at least 90 wt. %, or at least 95 wt. %, based on the total weight of the binary polymer composition, the rest being other polymers and/or additives such as softeners, pigments, stabilizers or other additives for use in plastic compositions. 
     
     
         5 . The textile fiber or textile web according to  claim 1 , wherein said binary polymer composition comprises the first polymer in an amount of 55 to 80 weight-%, or 60 to 75 weight-%, or 65 to 75 weight-%, and said second polymer in an amount of 20 to 45 weigh-%, or 25 to 40 weight-%, or 25 to 35 weight-%. 
     
     
         6 . The textile fiber or textile web according to  claim 1 , wherein the second polymer is PBS. 
     
     
         7 . The textile fiber or textile web according to  claim 1 , wherein it comprises recycled binary polymer composition comprising cellulose acetate propionate (CAP) and polybutylene succinate (PBS). 
     
     
         8 . A textile material comprising the textile fiber or textile web according to  claim 1 . 
     
     
         9 . The textile material according to  claim 7 , wherein it is selected from the group consisting of a fiber, a yarn, textiles, fabrics, nonwovens, textile products for one of the following applications; apparel, household, industrial, technical, ropes, nets and car textiles, household and furnishing textiles including sheets, carpets and rugs, covers and curtains, and nonwovens, such as filters and sanitary products. 
     
     
         10 . The textile material according to  claim 7 , wherein it is recyclable. 
     
     
         11 . A method for manufacturing a textile fiber or a textile web from a binary polymer composition, wherein the method comprises the following steps:
 obtaining a homogenous polymer blend of a binary polymer composition comprising at least a first polymer being cellulose acetate propionate (CAP), and a second polymer being polybutylene succinate (PBS), and the total amount of said first and said second polymer is at least 80 weight-% based on the total weight of said binary polymer composition, and   a) forming said homogenous polymer blend into a textile fiber by a spinning method, or   b) forming said homogenous polymer blend into a textile web by a method of producing nonwoven materials.   
     
     
         12 . The method according to  claim 11 , wherein forming said homogenous polymer blend into a textile fiber is done by a spinning method selected from the group consisting of wet spinning, dry spinning, melt spinning, extrusion spinning, direct spinning, gel spinning and electrospinning, preferably melt spinning and/or direct spinning. 
     
     
         13 . The method according to  claim 12 , wherein forming said homogenous polymer blend into a textile fiber is done by a melt spinning method, where the melt spinning temperature is between 180 and 270° C., or between 200 and 250° C., or between 210 and 230° C. 
     
     
         14 . The method according to  claim 13 , wherein forming said homogenous polymer blend into a textile fiber is done by a melt spinning method using a melt spinneret with at least one hole with a hole diameter of 0.1 to 2 mm, or 0.5 to 1.5 mm, or 0.8 to 1.2 mm. 
     
     
         15 . The method according to characterized in that  claim 12 , wherein the binary polymer composition comprises a further polymer selected from the group consisting of polypropylene succinate (PPS), polybutylene succinate adipate (PBSA), polybutylene adipate terephthalate (PBAT), polylactic acid (PLA), polycaprolactone (PCL), polybutylene adipate (PBA), polyhydroxyalkanoate (PHA), polyhydroxybutyrate (PHB), polyethylene furanoate (PEF), polybutylene terephthalate (PBT), polybutylene succinate terephthalate (PBST), and any polyester containing sebacic and/or azelaic acid and/or dodecanedioic acid as dicarboxylic acid alone or in combination with terephthalic acid, and any combination of these. 
     
     
         16 . The method according to  claim 12 , wherein forming said homogenous polymer blend into a textile web is done by melt blow and/or spunbond. 
     
     
         17 . The method according to  claim 12 , wherein obtaining the homogenous polymer blend is performed by melt-mixing and the melt-mixing is performed at a temperature between 200° C. and 300° C., or between 200° C. and 270° C., or between 210° C. and 250° C., or between 210° C. and 230° C. 
     
     
         18 . The method according to  claim 12 , wherein obtaining a homogenous polymer blend is done by a recycling process. 
     
     
         19 - 20 . (canceled)