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A special-shaped cross-section viscose filament and preparation method thereof

A viscose filament, special-shaped cross-section technology, applied in the field of viscose fiber, can solve the problems of no antibacterial and antibacterial properties, increase fiber production cost, increase fiber production cost, etc., and achieve smooth hand feel, good bacteriostatic properties, The effect of reducing production costs

Active Publication Date: 2019-04-26
潍坊欣龙生物材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. It is necessary to purchase spinnerets of different shapes, and the investment in equipment is large;
[0005] 2. The utilization rate of the nozzle is low, which causes a lot of waste and increases the cost of fiber production;
[0006] 3. Viscose filaments produced by conventional spinnerets in the prior art have no hollowness;
[0007] 4. The viscose filament produced by conventional technology has no antibacterial and antibacterial properties;
[0008] 5. A large amount of ZnSO is consumed in the production process of conventional technology 4 , causing zinc pollution and increasing the cost of fiber production

Method used

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  • A special-shaped cross-section viscose filament and preparation method thereof
  • A special-shaped cross-section viscose filament and preparation method thereof
  • A special-shaped cross-section viscose filament and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1 Preparation of special-shaped section viscose filament

[0041] (1) Preparation of spinning viscose

[0042] Using cellulose pulp as raw material, through steps including dipping, pressing, pulverizing, aging, yellowing, dissolving, mixing, filtering, defoaming, aging and other steps to obtain Type A with cellulose content of 7.8wt%, viscosity of 35s, and maturity of The spinning viscose of 18ml, described viscosity adopts falling ball method to measure, and described degree of maturity adopts 10%NH 4 Cl solution measurement, adding viscose denaturant PEG in the dissolving step, the addition amount of PEG relative to the first cellulose is 0.5wt%.

[0043] (2) Spinning

[0044] Use viscose filament with spinneret 30 holes × 0.08mm (aperture diameter), in H 2 SO 4 Concentration 115g / l, Al 2 (SO 4 ) 3 Concentration 2g / l, Na 2 SO 4 Concentration 260g / l, temperature 45 ℃ coagulation bath coagulation molding, and then through nozzle drafting, inter-dis...

Embodiment 2

[0052] Embodiment 2 Preparation of special-shaped section viscose filament

[0053] (1) Preparation of spinning viscose

[0054] Using cellulose pulp as raw material, through steps including dipping, pressing, pulverizing, aging, yellowing, dissolving, mixing, filtering, defoaming, aging and other steps to obtain Type A with cellulose content of 8.2wt%, viscosity of 40s, and maturity of 21ml of spinning viscose, the viscosity is measured by the falling ball method, and the degree of maturity is measured by 10%NH4 Cl solution is measured, and described solution step adds denaturing agent AC1815, and the addition amount of first kind of cellulose in AC1815 relative viscose is 1.0wt%.

[0055] (2) Spinning

[0056] Use viscose filament with spinneret 30 holes × 0.08mm (aperture diameter), in H 2 SO 4 Concentration 123g / l, Al 2 (SO 4 ) 3 Concentration 5g / l, Na 2 SO 4 Concentration 280g / l, temperature 47 ℃ coagulation bath coagulation molding, and then through nozzle drafti...

Embodiment 3

[0064] Embodiment 3 Preparation of special-shaped section viscose filament

[0065] (1) Preparation of spinning viscose

[0066] Using cellulose pulp as raw material, through steps including dipping, pressing, pulverizing, aging, yellowing, dissolving, mixing, filtering, defoaming, aging and other steps to obtain Type A with cellulose content of 8.0wt%, viscosity of 43s, and maturity of The spun viscose of 25ml, described viscosity adopts falling ball method to measure, and described maturity adopts 10%NH 4 Cl solution measurement, the dissolving step adds viscose denaturant EB, and the addition amount of EB is 1.2wt% relative to the first cellulose.

[0067] (2) Spinning

[0068] Use viscose filament with spinneret 30 holes × 0.08mm (aperture diameter), in H 2 SO 4 Concentration 127g / l, Al 2 (SO 4 ) 3 Concentration 7g / l, Na 2 SO 4 Concentration 270g / l, temperature 43 ℃ coagulation bath coagulation molding, and then through nozzle drafting, inter-disk drafting and coa...

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Abstract

The invention provides a special-shaped cross section viscose filament yarn, wherein the cross section of the special-shaped cross section viscose filament yarn is in a C shape, and the special-shaped cross section viscose filament yarn has degree of hollowness of 20-65%, dry breaking strength of more than or equal to 2.00cN / dtex, wet breaking strength of more than or equal to 0.90cN / dtex, dry stretch rate of more than or equal to 19.0% and twist variation coefficient of more than or equal to 11.00%. The invention also provides a preparation method of the special-shaped cross section viscose filament yarn; the preparation method is characterized by comprising a spinning viscose preparation step; a viscose denaturant is added in the spinning viscose preparation step, and the amount of the added viscose denaturant is 0.2-5wt% of that of alpha cellulose in viscose. The special-shaped cross section viscose filament yarn can be produced without purchasing a special-shaped spinning jet, so that the utilization rate of the spinning jet is increased, and the production cost in a spinning exchange process is lowered. The special-shaped cross section viscose filament yarn is widely used for making underwear, clothing, home textiles, imitated silk fabric products and the like.

Description

technical field [0001] The invention relates to the technical field of viscose fibers, in particular to a viscose filament with a special-shaped cross-section and a preparation method thereof. Background technique [0002] With the continuous improvement of people's consumption concept and fashion vision in modern society, the demand for new functional fibers in clothing, decoration and other textile fields is increasing. Viscose filament has become a high-quality textile raw material. The variety of glue filament is too single. In recent years, the degree of differentiation is far lower than that of viscose staple fiber, and its fabric is too common, making its application range smaller and smaller, and the market is generally sluggish. The development of differentiated and functional new varieties of viscose filament is the continuous development trend of viscose filament. [0003] Patent CN 1302161 C discloses a three-lobe viscose filament, its preparation method and no...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/253D01D5/24D01D5/12D01D5/06D01F2/08
CPCD01D5/06D01D5/12D01D5/24D01D5/253D01F2/08
Inventor 吴亚红马君志郝连庆李昌垒白志飞
Owner 潍坊欣龙生物材料有限公司
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