Fluorescent fibers and their use

Abstract

The present invention relates to a cellulosic regenerated fiber which contains an incorporated luminous pigment and an incorporated color pigment and the use of these for the production of yarns, textile fabrics and an article of reflective clothing and a process for the production of these fibers. This fiber satisfies the demands of standard EN 471, standard EN 1150, standard CAN/CSA, standard ANSI/ISEA and standard BS 471 with regard to light density, the color space and fastness values.

1 . A cellulosic regenerated fiber comprising at least one incorporated color pigment and at least one incorporated fluorescent pigment. 
     
     
         2 . The cellulosic regenerated fiber according to  claim 1 , wherein said fiber comprises 0.1-25 weight percentage color pigment in relation to the cellulose and 0.1-22 weight percentage fluorescent pigment in relation to the cellulose. 
     
     
         3 . The cellulosic regenerated fiber according to  claim 1 , wherein the fluorescent pigments comprises amino-modified benzoguanamines as a chromophore group. 
     
     
         4 . The cellulosic regenerated fiber according to  claim 1 , wherein said fiber is produced according to a process selected from the group consisting of viscose, Modal, Lyocell, Cupro or carbamate processes. 
     
     
         5 . The cellulosic regenerated fiber according to  claim 1 , wherein said fiber further comprises-at least one light stabilizer. 
     
     
         6 . The cellulosic regenerated fiber according to  claim 1 , further comprising a flame-resistant agent. 
     
     
         7 . The cellulosic regenerated fiber according to  claim 6 , wherein the flame-resistant agent is an incorporated organophosphorous compound. 
     
     
         8 . The cellulosic regenerated fiber according to  claim 1 , further comprising an antibacterial agent. 
     
     
         9 . A yarn comprising the fiber according to  claim 1 . 
     
     
         10 . The yarn according to  claim 9 , further comprising at least one fiber of another origin. 
     
     
         11 . The yarn according to  claim 10 , wherein the fibers fiber of another origin is selected from the group consisting of polyester, flame resistant polyester, Modacryl, para- and meta-aramides, polyamidimide wool, flame resistant wool, polybenzimidazole (PBI), polyimide, polyamides, flame-resistant polyamides, flame-resistant acrylic fibers, melamine fibers, polyphenylensulfide (PPS), polytetrafluorethylene (PTFE), glass fibers, cotton, silk, carbon fibers, oxidized thermally stable polyacrylnitrile fibers and electrically conductive fibers as well as blends of these fibers. 
     
     
         12 . A textile fabric comprising the fiber according to  claim 1 . 
     
     
         13 . The textile fabric according to  claim 12 , wherein the textile fabric is selected from the group consisting of a woven fabric, knitted fabric, a warp knitted fabric, and a non-woven fabric. 
     
     
         14 . The textile fabric according to  claim 12 , wherein the fabric additionally comprises at least one fiber of another origin. 
     
     
         15 . The textile fabric according to  claim 12 , wherein the fiber of another origin is selected from the group consisting of polyester, flame resistant polyester, Modacryl, para- and meta-aramides, polyamidimide wool, flame resistant wool, PBI, polyimide, polyamides, flame-resistant polyamides, flame-resistant acrylic fibers, melamine fibers, PPS, PTFE, glass fibers, cotton, silk, carbon fibers, oxidized thermally stable polyacrylnitrile fibers and electrically conductive fibers as well as blends of these fibers. 
     
     
         16 . An article of reflective clothing for professional and non-professional use comprising the fiber according to  claim 1 . 
     
     
         17 . The cellulosic regenerated fiber according to  claim 3 , wherein said fiber comprises 0.2-5 weight percentage color pigment in relation to cellulose and 7.0-17.0 weight percentage fluorescent pigment in relation to the cellulose. 
     
     
         18 . The cellulosic regenerated fiber according to  claim 5 , wherein the at least one light stabilizer is selected from the group consisting of a UV absorber, HALS light stabilizers and anorganic light stabilizers.