Colored protein cellulose viscose and preparing method thereof
A viscose fiber and colored protein technology, which can be used in the direction of cellulose/protein conjugated artificial filament, chemical post-treatment of cellulose/protein artificial filament, adding dyes in spinning solution, etc., which can solve the loss of protein fibrin components , uneven dyeing and other problems, to achieve the effect of high color fastness, simple and easy process steps, and uniform dyeing
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[0018] The preparation method of colored protein viscose fiber of the present invention, it comprises the steps:
[0019] A. Degrease, decolorize and deodorize animal and vegetable protein raw materials to obtain animal and vegetable protein powder;
[0020] B. Alkalinization: Dissolve animal and vegetable protein powder in lye to obtain protein alkali solution;
[0021] C, adding a cross-linking agent in the protein alkali solution to obtain a protein spinning solution;
[0022] D. Blending of protein spinning solution and dyed viscose, or blending of protein spinning solution and viscose, dyeing and spinning to obtain protein filaments;
[0023] E. Wash the protein silk with peroxide solution, oil it, dry it, and form it into a tube to obtain colored protein viscose fiber.
[0024] In the above method, the following types of animal and vegetable proteins can be used, such as animal protein is at least one of milk protein, silkworm chrysalis protein, animal fur protein or i...
Embodiment 1
[0031] Weigh 1 part of pupal protein powder, add 4 parts of 5% sodium hydroxide aqueous solution, stir and heat to 60° C., dissolve and defoam to obtain pupa protein alkaline solution. Add 5% polycarboxylic acid in pupal protein alkaline solution to obtain pupa protein spinning liquid, press pupa protein spinning liquid and the ratio of 1 to 25 of viscose, pupa protein spinning liquid is added in the viscose, then add 2 2 parts of yellow dye solution (according to the application number is 200710049068.9, the title of invention is called "the dyeing viscose glue that is used to produce spinning dyed viscose fiber and preparation method " in the patent application that writes down and adds dye solution in viscose glue), mixes evenly , Filtration and spinning, the silk cake is washed with 3% sodium percarbonate aqueous solution, washed with water, oiled, dried, and formed into a tube to obtain yellow pupal protein viscose fiber.
[0032] Product physical inspection indicators - ...
Embodiment 2
[0034] Weigh 1 part of soybean protein powder, add 4 parts of 2% sodium hydroxide aqueous solution, stir and heat to 60° C., dissolve and defoam to obtain soybean protein alkali solution. Add 5% formaldehyde to soybean protein alkali solution to obtain soybean protein spinning solution. According to the ratio of soybean protein spinning solution to viscose 1:25, add soybean protein spinning solution into viscose, and then add 2 parts of yellow dye liquid (according to the application number is 200710049068.9, the title of invention is the technology described in the patent application of " dyed viscose and preparation method for producing spinning dyed viscose fiber " adding dye liquor to viscose), after mixing, filtering Spinning, the silk cake is washed with 2% hydrogen peroxide aqueous solution, washed with water, oiled, dried, and formed into a tube to obtain yellow soybean protein viscose fiber.
[0035] Product physical inspection indicators - color: light yellow, bright...
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