Flaky flat viscose fiber and preparation method thereof

A technology of flat viscose and fiber, which is applied in the field of cellulose fiber, can solve the problems of restricting the development of flat viscose fiber, rarely seeing flat fiber development reports, and high price, so as to achieve superior moisture conductivity, reduce equipment investment, and realize industrialization The effect of production

Active Publication Date: 2012-09-19
赛得利(盐城)纤维有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As we all know, the spinnerets for viscose fibers generally use gold-platinum alloys, tantalum, niobium and other precious metals, and require extremely high processing precision, so the price of the spinnerets is very expensive, which limits the development of fla

Method used

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  • Flaky flat viscose fiber and preparation method thereof
  • Flaky flat viscose fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The dissolved sodium carbonate solution is injected into the spinning viscose through a syringe pump before viscose spinning, and is fully mixed with the spinning viscose solution to obtain a mixed spinning viscose. 40wt% of a fiber.

[0025] The mixed spun viscose was spun in a coagulation bath containing sulfuric acid 120g / l, zinc sulfate 11g / l, sodium sulfate 330g / l, and a temperature of 51°C.

[0026] The formed nascent fiber is drawn, and the spray-guided draft is 45%, and then plasticized and drawn, washed with water, desulfurized, oiled and dried to obtain sheet-like flat viscose fiber.

Embodiment 2

[0028] The sodium bicarbonate solution that dissolves is joined in the viscose solution after the yellowing finishes, fully mixes with the viscose solution, the add-on of sodium bicarbonate is 45wt% of methyl cellulose in the cellulose viscose, then through mixing, The steps of dissolving, filtering, defoaming, ripening, and filtering before spinning are used to obtain the mixed spinning viscose.

[0029] The mixed spun viscose was spun in a coagulation bath containing 140 g / l of sulfuric acid, 9 g / l of aluminum sulfate and 335 g / l of sodium sulfate at a temperature of 50°C.

[0030] The formed nascent fibers are drawn, and the spray-guided draft is 55%, and then plasticized and drawn, washed with water, desulfurized, oiled and dried to obtain sheet-like flat viscose fibers.

Embodiment 3

[0032] The mixed solution of dissolved sodium carbonate and sodium bicarbonate is added to the viscose solution in the post-dissolution process, fully mixed with the viscose solution, and the total addition of sodium carbonate and sodium bicarbonate is cellulose viscose. 38wt% of the fiber, and then through the steps of dissolving, filtering, defoaming, ripening, and pre-spinning filtration to obtain mixed spinning viscose.

[0033] The mixed spun viscose was spun in a coagulation bath containing 105 g / l of sulfuric acid, 10 g / l of zinc sulfate and 10 g / l of aluminum sulfate, 290 g / l of sodium sulfate, and a temperature of 55°C.

[0034] The formed nascent fiber is drawn, and its spray draft is 37%, and then plasticized and drawn, washed with water, desulfurized, oiled and dried to obtain sheet-like flat viscose fiber.

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Abstract

The invention discloses a flaky flat viscose fiber and a preparation method thereof. The preparation method comprises the following steps of: (1) adding a carbonate solution in a viscose solution which finishes etiolation, uniformly mixing with the viscose solution so as to obtain a blend spinning viscose glue, wherein the addition of carbonate is 30-50wt% of armour fiber in a cellulose viscose glue; (2) shaping the blend spinning viscose glue through coagulating bath spinning; and (3) carrying out spray guide drafting on the nascent fiber after shaping, wherein the drafting rate of the spray guide drafting is 30-60%, and the flaky flat viscose fiber is prepared through plastication drafting and postprocessing steps. According to the invention, the copying of the flat viscose fiber can be realized without a spinneret plate in a special jet orifice shape, the traditional production mode of the flat viscose fiber is broken, and the flaky flat viscose fiber is a primary revolution of manufacturing heterotypic viscose fiber. Compared with the prior art, the equipment investment is reduced, and the commercial process is easy to realize.

Description

technical field [0001] The invention relates to the technical field of cellulose fibers, in particular to a flat viscose fiber with a flat shape and a preparation method thereof. Background technique [0002] Today's textile industry is characterized by the application of high-tech means to update products. Traditional textiles are processed by new technologies to achieve new products with unique functions. In recent years, special-shaped fibers have been widely used. Special-shaped fibers have broad market prospects in the three major fields of clothing, decoration and industrial textiles, and are also ideal raw materials for non-woven fabrics and imitation leather coatings. Recently, profiled fibers are more and more showing the unparalleled superiority of ordinary fibers in product applications. The development and application of differentiated and functional new chemical fibers provides abundant raw materials for textile products. [0003] Flat fiber is a kind of fiber...

Claims

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Application Information

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IPC IPC(8): D01F2/10D01D5/12
Inventor 迟健叶荣明刘海洋王可李荣超龚玮超
Owner 赛得利(盐城)纤维有限公司
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