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Spontaneous heating cellulosic fibers as well as preparation method and application thereof

A cellulose fiber and self-heating technology, which is applied in the fields of fiber chemical characteristics, rayon manufacturing, textiles and papermaking, etc., can solve the problems that people with poor heart function are not suitable for use, heating fibers are not suitable for use, and fibers have requirements, etc., to achieve The operation process is easy to control, the cost is low, and the effect of high safety is

Active Publication Date: 2019-01-01
TONGLU LEITAI BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the development of heating fibers mainly focuses on the following two aspects: one is to realize the self-heating of fibers by adding inorganic powders with far-infrared emission functions (such as CN201110251339.5) or adding electrothermal materials (such as CN201510624366.0), but this This kind of heating fiber is not suitable for children and pregnant women, and it is not suitable for people with poor heart function.
The second is to absorb moisture and heat through fibers (such as CN201110098693.9), but this type of material has requirements for fibers, and fibers with good hygroscopicity are required to make moisture absorption and heat generation fibers, which are subject to certain restrictions in terms of materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of preparation method of self-heating cellulose fiber provided by the invention comprises the following steps:

[0023] (1) Preparation of spinning solution: Dissolve natural capsaicin in 7wt% NaOH and 12wt% urea solution at a mass percentage of 0.5% to form a mixed solution and pre-cool to -12°C; then dissolve the fiber at a mass percentage of 3% Dispersing the capsaicin into the above-mentioned mixed solution of capsaicin, vigorously stirring to dissolve the cellulose, obtaining a cellulose spinning solution containing capsaicin, and degassing for subsequent use;

[0024] (2) Preparation of self-heating cellulose fibers: the mixed spinning solution passes through the spinneret hole with a diameter of 70 μm to form a fine flow into the sodium sulfate solution with a mass percentage of 30%, and the temperature of the coagulation bath is controlled at 20-30°C. The cellulose fiber loaded with capsaicin is prepared by spinning by spinning method, stretched at a rati...

Embodiment 2

[0026] (1) Preparation of spinning solution: Dissolve natural capsaicin in 5wt% NaOH and 10wt% urea solution at a mass percentage of 1.5% to form a mixed solution and pre-cool to -12°C; then dissolve the fiber at a mass percentage of 5% Dispersing the capsaicin into the above-mentioned mixed solution of capsaicin, vigorously stirring to dissolve the cellulose, obtaining a cellulose spinning solution containing capsaicin, and degassing for subsequent use;

[0027] (2) Preparation of self-heating cellulose fibers: the mixed spinning solution forms a thin stream through the spinneret holes with a diameter of 80 μm and enters into an aqueous sulfuric acid solution with a mass percentage of 5-10%, at a temperature of 40-50 °C, and wet spinning The cellulose fiber loaded with capsaicin is prepared, stretched at a ratio of 5-10%, then wound, washed with water, and dried naturally, which is obtained from the heating cellulose fiber. The obtained self-heating cellulose fiber has a poro...

Embodiment 3

[0029] (1) Preparation of spinning solution: Dissolve artificial capsaicin in 4wt% NaOH and 6wt% urea solution according to 2-3% mass percentage to form a mixed solution and pre-cool to -12°C; then according to 4% mass percentage % Disperse the cellulose into the above mixed solution of capsaicin, stir vigorously to dissolve the cellulose, obtain a cellulose spinning solution containing capsaicin, and defoam it for later use;

[0030] (2) Preparation of self-heating cellulose fiber: the mixed spinning solution forms a thin stream through a spinneret hole with a diameter of 60 μm and enters a sodium sulfate solution with a mass percentage of 10%, at a temperature of 25-30°C, prepared by wet spinning The cellulose fiber loaded with capsaicin is stretched at a ratio of 10-15%, then wound, washed with water, and dried naturally, which is obtained from the heating cellulose fiber. The obtained self-heating cellulose fiber has a porous structure inside, and the pore size distributio...

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Abstract

The invention discloses a preparation method of spontaneous heating cellulosic fibers and spontaneous heating cellulosic fibers prepared by adopting the method. The preparation method comprises the steps of preparing a spinning solution and preparing spontaneous heating cellulosic fibers. The spontaneous heating cellulosic fibers comprise 0.5 to 3 percent by weight of capsaicine and are uniformlydistributed in a porous structure inside the cellulosic fibers, and an aperture is distributed in a range of 20 to 100 nm. The spontaneous heating cellulosic fibers have a good heating efficacy and stability, after the spontaneous heating cellulosic fibers are washed by 1 to 3 percent by weight of sodium dodecyl sulfate solution for 10 to 70 times, 95 percent or more of heating function performance can still be maintained, and the spontaneous heating cellulosic fibers can be widely applied to products such as underwears, home textiles, socks.

Description

technical field [0001] The invention belongs to the field of functional textile fiber materials, and in particular relates to a self-heating cellulose fiber, a preparation method thereof and an application of the self-heating cellulose fiber. technical background [0002] The research and development of heating fibers has always been one of the hot issues in the development of functional textile materials. At present, the development of heating fibers mainly focuses on the following two aspects: one is to realize the self-heating of fibers by adding inorganic powders with far-infrared emission functions (such as CN201110251339.5) or adding electrothermal materials (such as CN201510624366.0), but this This kind of heating fiber is not suitable for children and pregnant women, and it is not suitable for people with poor heart function. The second is to absorb moisture and heat through fibers (such as CN201110098693.9), but this type of material has requirements for fibers, an...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/08D01F1/10
CPCD01F1/10D01F2/08
Inventor 朱闻雷刘琳付飞亚王关勤
Owner TONGLU LEITAI BIOTECH
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