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Preparation method for durable antibacterial cellulose fibres

A cellulose fiber and fiber technology, applied in the field of functional preparation, can solve the problems of affecting the antibacterial effect of fibers, affecting the printing and dyeing processing of light-colored products, etc., and achieve the effect of high whiteness value

Active Publication Date: 2019-03-08
山东欣悦健康科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although nano-silver antibacterial fiber has a good bactericidal effect, there are still some problems. For example, the color of nano-silver antibacterial fiber is generally silver-gray, or even black-gray, which seriously affects the printing and dyeing of light-colored products. If the pre-treatment process is strengthened Conditions will affect the antibacterial effect of the fiber

Method used

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  • Preparation method for durable antibacterial cellulose fibres

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preparation example Construction

[0021] The invention provides a kind of preparation method of durable antibacterial cellulose fiber, comprising the following steps:

[0022] S1. Removing impurities from the cellulose fibers through physical and mechanical means to obtain fibers after removal of impurities;

[0023] S2. Pretreating the fibers after the removal of impurities, the pretreatment includes a cleaning process and / or a scouring and bleaching process, and dehydration to obtain dehydrated fibers;

[0024] S3, using an antibacterial working solution, performing antibacterial finishing on the dehydrated fibers to obtain durable antibacterial cellulose fibers;

[0025] The antibacterial working solution includes antibacterial agent, alkaline auxiliary agent and penetrating agent, and the antibacterial agent is magnesium carbonate, copper nitrate, copper chloride, copper hydroxide, copper carbonate, basic copper carbonate, zinc chloride, zinc sulfate One or more of zinc hydroxide and zinc carbonate; the a...

Embodiment 1

[0054] (1) Carding the long-staple cotton fibers to remove impurities in the fibers;

[0055] (2) Place 100kg of cotton fiber after cleaning in the cake making machine evenly, the basket pressure is 4MPa, the foot pressure is 2MPa, and the beating density is 0.2g / cm 3 A uniform cotton cake, put the cotton fiber cake into the dyeing vat;

[0056] (3) Pretreat the cotton fiber cake in the dye vat: add hydrogen peroxide 3-5g / L, caustic soda 2-3g / L, iron ion chelating agent 726 2-3g / L, hydrogen peroxide stabilizer P-CBB 1- 2g / L, scouring agent SA-3E3-5g / L, bath ratio 1:5, circulate for 10min, then heat up to 98-100℃ at 3°C / min, keep warm for 40min, discharge; add water, bath ratio 1:5, then Heat up to 98-100°C at 3°C / min, keep warm for 20 minutes, and drain; add water, the bath ratio is 1:5, then raise the temperature to 98-100°C at 3°C / min, keep warm for 20 minutes, and drain.

[0057] It should be noted that the concentration of hydrogen peroxide is calculated as 100%, and the...

Embodiment 2

[0063] (1) Carding the long-staple cotton fibers to remove impurities in the fibers;

[0064] (2) Place 200kg of cotton fiber after cleaning evenly in the cake making machine, the basket pressure is 4MPa, the foot pressure is 2MPa, and the beating density is 0.22g / cm 3 A uniform cotton cake, put the cotton fiber cake into the dyeing vat;

[0065] (3) Pretreat the cotton fiber cake in the dye vat: add caustic soda 40g / L, scouring agent SA-3E2-4g / L, bath ratio 1:5, circulate for 10min, then heat up to 100- 102°C, keep warm for 60min, discharge; add water, bath ratio 1:5, then heat up to 98-100°C at 3°C / min, keep warm for 20min, drain; add water, bath ratio 1:5, then heat up to 98°C / min -100℃, keep warm for 20min, drain; add hydrogen peroxide 3-5g / L, caustic soda 2-3g / L, iron ion chelating agent 726 2-3g / L, hydrogen peroxide stabilizer P-CBB1-2g / L, scouring agent SA- 3E 3-5g / L, bath ratio 1:3, cycle for 10min, then heat up to 98-100°C at 3°C / min, keep warm for 40min, discharge;...

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Abstract

The invention provides a preparation method for durable antibacterial cellulose fibres. The preparation method comprises the following steps: S1, removing impurities from cellulose fibres in a physical mechanical mode to obtain impurity-removed fibres; S2, performing pre-treatment on the impurity-removed fibres, and dewatering to obtain dewatered fibres, wherein the pre-treatment comprises a cleaning process and / or a refining and bleaching process; S3, performing antibacterial finishing on the dewatered fibres with an antibacterial working liquid to obtain durable antibacterial cellulose fibres, wherein the antibacterial working liquid comprises an antibacterial agent, an alkaline auxiliary agent and a penetrating agent; the antibacterial agent is one or more of magnesium carbonate, coppernitrate, copper chloride, copper hydroxide, copper carbonate, basic cupric carbonate, zinc chloride, zinc sulphate, zinc hydroxide and zinc carbonate; and the alkaline auxiliary agent is one or moreof sodium hydroxide, potassium hydroxide, sodium bicarbonate, ammonium carbonate, ammonia water, sodium phosphate and sodium carbonate. The prepared cellulose fibres have a durable antibacterial effect; and the whiteness value of the fibres is high.

Description

technical field [0001] The invention belongs to the technical field of functional preparation, in particular to a preparation method of durable antibacterial cellulose fiber. Background technique [0002] Microorganisms exist in every corner of people's lives, such as mites, Escherichia coli, Staphylococcus aureus and other harmful organisms will affect people's healthy daily life. Antibacterial fibers and their textiles have emerged as the times require; so-called antibacterial fibers refer to fibers with antibacterial or bactericidal functions. Antibacterial fibers are mainly divided into natural antibacterial fibers and artificial antibacterial fibers. Among them, artificial antibacterial fibers apply organic antibacterial agents or inorganic antibacterial agents to the surface and / or inside of fibers, and release antibacterial agents to inhibit or kill bacteria. However, organic antibacterial agents have problems such as toxicity, carcinogenicity, poor heat resistance, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/155D06M11/42D06M11/56D06M11/60D06M11/65D06M11/71D06M11/76D06L4/13D06L4/12D06M101/06D06M101/04
CPCD06L4/12D06L4/13D06M11/155D06M11/42D06M11/56D06M11/60D06M11/65D06M11/71D06M11/76D06M16/00D06M2101/06D06M2101/04
Inventor 李付杰蒋婵宋金花苏长智张玉兰沈允涛林凯刘小永王立强
Owner 山东欣悦健康科技有限公司
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