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Manufacturing method of stainable alginate fibers

A technology of alginate fiber and manufacturing method, which is applied in the direction of alginate rayon, rayon manufacturing, and fiber chemical characteristics, and can solve the problems of difficult alginate fiber dyeing, poor salt resistance and alkali resistance, etc. , to achieve the effects of increasing added value and market competitiveness, good color fastness, and excellent wet fastness

Active Publication Date: 2010-06-16
QINGDAO TIANYI GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, alginate fiber is currently mainly used in the production of medical dressings. This is due to its poor salt and alkali resistance, and the traditional dyeing process is difficult to achieve the dyeing of alginate fiber, which limits its application in many fields.
Therefore, how to realize the dyeing of alginate fiber has become an imminent problem in the field of alginate fiber research, and there are few reports on this aspect at present

Method used

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  • Manufacturing method of stainable alginate fibers

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Experimental program
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Effect test

Embodiment 1

[0024] Weigh 1.2 grams of polyamidoamine dendrimers of the second generation (2.0 generations) and dissolve them in 960 ml of distilled water, then add 40 grams of sodium alginate, and mechanically stir at 25° C. for 4 hours to obtain a concentration of 4% by mass. The sodium alginate fiber spinning solution was filtered and defoamed under reduced pressure for 14 hours to obtain the sodium alginate fiber spinning solution. Under the action of pressure, the sodium alginate spinning stock solution enters the coagulation bath of calcium chloride aqueous solution with a temperature of 30°C and a concentration of 4% by mass through the metering pump and spinneret, and then it is drawn after solidification, and the fiber The drafting adopts three-stage drafting process, and each stage is drawn by 1.5 to 1.8 times, and then washed and dried to obtain dyeable sodium alginate fibers. In the above steps, the fiber washing temperature is 40°C, and the drying temperature is 60°C.

Embodiment 2

[0026] Take by weighing the polyamide-amine dendrimer compound of the second generation (2.0 generation) of 2.0 grams, be dissolved in 950ml distilled water, obtain polyamide-amine dendrimer aqueous solution, then add polyamide-amine dendrimer aqueous solution Add 50 grams of sodium alginate to the mixture, stir mechanically at 30°C for 3.5 hours to obtain a sodium alginate fiber spinning solution with a concentration of 5% by mass, filter the above-mentioned sodium alginate fiber spinning solution, and defoam under reduced pressure for 16 hours to obtain seaweed Sodium acid fiber spinning dope. Under the action of pressure, the sodium alginate fiber spinning stock solution enters the coagulation bath of barium chloride aqueous solution with a temperature of 40°C and a concentration of 5% by mass through the metering pump and spinneret, and then is drawn, washed, and dried in sequence. Then get dyeable sodium alginate fiber. In the above steps, the fiber is drawn using a thre...

Embodiment 3

[0028] Weigh 3.6 grams of the second-generation (2.0 generation) polyamide-amine dendrimers and dissolve them in 940 mL of distilled water, then add 60 grams of sodium alginate, and stir mechanically at 35° C. for 3.5 hours to obtain a polyamide-amine dendrimer with a mass percentage concentration of 6%. The sodium alginate fiber spinning solution was filtered and defoamed under reduced pressure for 18 hours to obtain the sodium alginate fiber spinning solution. Under the action of pressure, the sodium alginate fiber spinning stock solution enters the coagulation bath of aluminum chloride aqueous solution with a temperature of 45°C and a mass percentage concentration of 6% through a metering pump and a spinneret, and is obtained after coagulation, drawing, washing and drying. Sodium alginate fiber can be dyed. In the above steps, the fiber is drawn using a three-stage drawing process, each stage is drawn 1.7 to 2.0 times, the fiber washing temperature is 45°C, and the drying t...

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Abstract

The invention disclose a manufacturing method of stainable alginate fibers, which comprises the following steps of: adding a water-soluble dendrimers compound into a alginate fiber spinning solution, and solidifying, drafting, water washing and post-processing by adopting wet spinning equipment and technology to obtain the alginate fibers with excellent staining property, wherein the content of dendrimers in the alginate fibers is 1-10 percent. Compared with a traditional alginate fiber production technology, the invention has the advantages that the prepared alginate fibers can be applied to direct dyes and active dyes under a salt-free condition to realize staining and have higher dye uptake rate which generally reaches above 80 percent and is 10-15 times that of the alginate fibers produced by the traditional technology. In addition, the alginate fibers prepared by the invention has better color fastness and particularly excellent wet-processing fastness which reaches above grade 4.

Description

technical field [0001] The invention relates to a method for manufacturing dyeable alginate fibers, in particular to a method for manufacturing dyeable alginate fibers by wet spinning by adding a dendrimer dyeing modifier to a spinning solution. Background technique [0002] Alginate fiber is a new type of fiber obtained by wet spinning production process with polysaccharide extracted from natural seaweed as raw material and water-soluble metal salt solution as coagulation bath. Seaweed has accumulated rich minerals in the ocean, and contains carbohydrates, amino acids, fats and various vitamins, which can activate the metabolism of cells and have the functions of anti-inflammatory and anti-itching, making alginate fiber have a natural effect on human skin. It has the effects of maintenance, moisturizing, and beauty, and it also has special uses for skin disease treatment. In addition, alginate fiber also has good biodegradability, biocompatibility, excellent hygroscopicity...

Claims

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Application Information

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IPC IPC(8): D01F9/04D01F1/10D01D5/06
Inventor 朱平张传杰胡四军
Owner QINGDAO TIANYI GROUP
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