A kind of far-infrared antibacterial organosilicon nitrogen flame-retardant fiber and its production method

Abstract

The invention discloses a far-infrared antibacterial organic silicon-nitrogen fire-retardant fiber and a production method thereof. The production method comprises the following technological steps: firstly, preparing a cellulose solution; secondly, injecting before spinning: mixing the cellulose solution with an organic silicon-nitrogen composite flame retardant to form spinning gel, wherein the organic silicon-nitrogen composite flame retardant is formed by mixing organosilane hydrolytic dispersion liquid with polyborate; thirdly, spinning: jetting the spinning gel by using a spinning nozzle for spinning, and carrying out acid bath forming and water washing to obtain an initial product of the fire-retardant fiber; fourthly, refining: performing fixed crosslinking, water washing, oiling and drying on the obtained initial product of the flame-retardant fiber to obtain a final product of the flame-retardant fiber. The organic silicon-nitrogen fire-retardant fiber disclosed by the invention has the characteristics of stable flame-retardant far-infrared antibacterial property, good durability, washing resistance, safety in wearing and the like, and has higher technical content and huge market prospect.

Description

technical field

[0001] The invention relates to an organic silicon nitrogen flame-retardant fiber, which belongs to the field of textile products. Background technique

[0002] At present, more than 60% of indoor fires in the world are caused by textiles, and more than 80% of fire deaths are caused by inhalation of poisonous fumes or suffocation. With the development of human civilization and the formulation of fire safety regulations in various countries, higher and higher requirements are put forward for flame retardant materials. From the initial consideration of the flame retardant properties of materials, to the requirements for environmental protection, health care, appearance, comfort and other aspects of flame retardant materials. Although flame retardant synthetic fibers (flame retardant polyester, flame retardant acrylic, etc.) and intrinsically flame retardant fibers (aramid, polyimide, etc.) have good flame retardancy, due to the poor comfort of the fiber fabric...

Examples

Embodiment 1

[0043]Using a cellulose solution with 7.5% cellulose, 5.5% alkali, 53 seconds viscosity, and 16.2ml maturity, inject an organic silicon nitrogen composite flame retardant with a cellulose content of 20wt%, wherein the silicon nitrogen composite flame retardant is The molar ratio of titanium, calcium and boron ions is 1:0.5:1:0.5. It goes through dynamic mixing first, then static mixing, and finally enters the mixing tank and mixes again to obtain spinning glue. The mixing tank re-mixing time is 50min and the temperature is 25°C. The viscosity of the mixed glue is 70 seconds, and the maturity (10% ammonium chloride) is 10ml. Regenerated in the coagulation bath by spinneret spinning, the coagulation bath composition is sulfuric acid 75g / l, sodium sulfate 160g / l, zinc sulfate 20g / l, temperature 40 ℃. The regenerated fiber tow is drawn, cut, washed, fixed and cross-linked, bleached, oiled, dried and packed. Wherein the conditions of the fixed cross-linking bath are: the concent...

Embodiment 2

[0045] Using a cellulose solution with 7.5% cellulose, 5.5% alkali, 53 seconds viscosity, and 16.2ml maturity, inject an organosilicon-nitrogen composite flame retardant with a cellulose content of 28wt%. , titanium, calcium, and boron ions in a molar ratio of 1:1:1:1. It goes through dynamic mixing first, then static mixing, and finally enters the mixing tank and mixes again to obtain spinning glue. The mixing tank re-mixing time is 60min and the temperature is 30°C. The viscosity of the mixed glue is 70 seconds, and the maturity (10% ammonium chloride) is 10ml. Regenerated in the coagulation bath by spinneret spinning, the coagulation bath composition is sulfuric acid 75g / l, sodium sulfate 160g / l, zinc sulfate 20g / l, temperature 40 ℃. The regenerated fiber tow is drawn, cut, washed, fixed and cross-linked, bleached, oiled, dried and packed. The conditions of the fixed cross-linking bath are as follows: the concentration of the fixed cross-linking agent is 25%, the pH valu...

technical field

[0001] The invention relates to an organic silicon nitrogen flame-retardant fiber, which belongs to the field of textile products. Background technique

[0002] At present, more than 60% of indoor fires in the world are caused by textiles, and more than 80% of fire deaths are caused by inhalation of poisonous fumes or suffocation. With the development of human civilization and the formulation of fire safety regulations in various countries, higher and higher requirements are put forward for flame retardant materials. From the initial consideration of the flame retardant properties of materials, to the requirements for environmental protection, health care, appearance, comfort and other aspects of flame retardant materials. Although flame retardant synthetic fibers (flame retardant polyester, flame retardant acrylic, etc.) and intrinsically flame retardant fibers (aramid, polyimide, etc.) have good flame retardancy, due to the poor comfort of the fiber fabric...

Examples

Embodiment 1

[0043]Using a cellulose solution with 7.5% cellulose, 5.5% alkali, 53 seconds viscosity, and 16.2ml maturity, inject an organic silicon nitrogen composite flame retardant with a cellulose content of 20wt%, wherein the silicon nitrogen composite flame retardant is The molar ratio of titanium, calcium and boron ions is 1:0.5:1:0.5. It goes through dynamic mixing first, then static mixing, and finally enters the mixing tank and mixes again to obtain spinning glue. The mixing tank re-mixing time is 50min and the temperature is 25°C. The viscosity of the mixed glue is 70 seconds, and the maturity (10% ammonium chloride) is 10ml. Regenerated in the coagulation bath by spinneret spinning, the coagulation bath composition is sulfuric acid 75g / l, sodium sulfate 160g / l, zinc sulfate 20g / l, temperature 40 ℃. The regenerated fiber tow is drawn, cut, washed, fixed and cross-linked, bleached, oiled, dried and packed. Wherein the conditions of the fixed cross-linking bath are: the concent...

Embodiment 2

[0045] Using a cellulose solution with 7.5% cellulose, 5.5% alkali, 53 seconds viscosity, and 16.2ml maturity, inject an organosilicon-nitrogen composite flame retardant with a cellulose content of 28wt%. , titanium, calcium, and boron ions in a molar ratio of 1:1:1:1. It goes through dynamic mixing first, then static mixing, and finally enters the mixing tank and mixes again to obtain spinning glue. The mixing tank re-mixing time is 60min and the temperature is 30°C. The viscosity of the mixed glue is 70 seconds, and the maturity (10% ammonium chloride) is 10ml. Regenerated in the coagulation bath by spinneret spinning, the coagulation bath composition is sulfuric acid 75g / l, sodium sulfate 160g / l, zinc sulfate 20g / l, temperature 40 ℃. The regenerated fiber tow is drawn, cut, washed, fixed and cross-linked, bleached, oiled, dried and packed. The conditions of the fixed cross-linking bath are as follows: the concentration of the fixed cross-linking agent is 25%, the pH valu...

Images