Method of dyeing collagen staple fiber

Abstract

A method of dyeing collagen fiber includes providing collagen fiber and dyeing the collagen fiber.

1 . A method of dyeing collagen fiber, the method comprising steps of:
 providing collagen fiber; and   dyeing the collagen fiber.   
     
     
         2 .- 3 . (canceled) 
     
     
         4 . The method according to  claim 1 , wherein the collagen fibers are reconstructed fiber staple fibers produced based on a number of mechanically sub-divided or grinded protein fibrils. 
     
     
         5 .- 12 . (canceled) 
     
     
         13 . The method according to  claim 1 , wherein the collagen staple fiber is spun into a yarn, and
 wherein a color of the yarn is subsequently modified into a neutral base color.   
     
     
         14 . The method according to  claim 13 , wherein the yarn is modified into the neutral base color and then reeled into a plurality of reels having the neutral base color. 
     
     
         15 . (canceled) 
     
     
         16 . The method according to  claim 13 , wherein the yarn having the neutral base color is reeled into a plurality of yarn reels. 
     
     
         17 . The method according to  claim 13 , wherein the yarn in a neutral base color is rolled up on a plurality of reels prior to dyeing, and
 wherein, subsequently, a subset from the plurality of spools is selected for dyeing the yarn in one color and another subset from the plurality of spools is selected for dyeing the yarn in another color.   
     
     
         18 .- 22 . (canceled) 
     
     
         23 . A method of manufacturing a collagen yarn, the method comprising:
 spinning a collagen-based staple fiber into a yarn by spinning of a plurality of collagen staple fibers into a yarn,   wherein the yarn comprises a spun bundle of collagen staple fibers, and   wherein the manufactured yarn is subsequently subject to dyeing.   
     
     
         24 . The method according to  claim 23 , wherein the dyeing of the collagen yarn is performed subsequently to the spinning of staple fibers into a yarn and prior to a further step of processing the yarn into a fabric. 
     
     
         25 .- 31 . (canceled) 
     
     
         32 . The method according to  claim 23 , wherein a percentage by weight of collagen in the collagen yarn is at least 20. 
     
     
         33 . The method according to  claim 23 , wherein a percentage by weight of collagen in the collagen yarn is at least 70. 
     
     
         34 .- 35 . (canceled) 
     
     
         36 . The method of  claim 23  further comprising:
 dyeing a collagen fabric comprising collagen fiber, wherein the collagen fabric is provided on the basis of the collagen yarn, 
 wherein the yarn is spun on based on a plurality of collagen staple fibers, and 
 wherein the fabric is subject to the dyeing. 
 
     
     
         37 .- 42 . (canceled) 
     
     
         43 . The method according to  claim 36 , wherein a percentage of collagen in the fabric is at least 70 percent by weight of the collagen. 
     
     
         44 .- 53 . (canceled) 
     
     
         54 . The method according to  claim 23 , wherein the collagen yarn comprises non-collagen protein. 
     
     
         55 . The method according to  claim 23 , wherein the collagen yarn comprises 1 to 60% by weight of non-collagen protein. 
     
     
         56 .- 59 . (canceled) 
     
     
         60 . A leather yarn formed via a method the method comprising:
 spinning a collagen-based staple fiber into a yarn by spinning of a plurality of collagen staple fibers into a yarn,   wherein the yarn comprises a spun bundle of collagen staple fibers, and   wherein the manufactured yarn is subsequently subject to dyeing,   wherein a color of the yarn is provided in a neutral base color.   
     
     
         61 . The leather yarn according to  claim 60 , wherein the yarn in the neutral base color is reeled up on a plurality of reels. 
     
     
         62 . The leather yarn according to  61 , wherein the yarn having the neutral base color is rolled up on a plurality of reels prior to the dyeing. 
     
     
         63 . The leather yarn according to  62 , wherein the yarn in a neutral base color is rolled up on a plurality of reels prior to dyeing and subsequently a subset from the plurality of spools is selected for dyeing the yarn in one color and another subset from the plurality of spools is selected for dyeing the yarn in another color. 
     
     
         64 . The leather yarn according to  63 , wherein the collagen staple fibers have a tenacity of more than 3 g/denier. 
     
     
         65 .- 68 . (canceled) 
     
     
         69 . A leather shoe comprising;
 a sole; and   an upper part,   wherein the upper part is at least partly comprised of leather fabric, and   wherein the leather fabric is produced based on leather yarn,   wherein the leather fabric of the shoe comprises:   tanning agents in at least 1% by weight of the leather fabric, and   dye in at least 1% by weight of the leather fabric.   
     
     
         70 .- 80 . (canceled)