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Method for producing antibacterial polylactic acid fiber

A technology of polylactic acid fiber and production method, applied in the direction of fiber chemical characteristics, single-component polyester rayon, textiles and papermaking, etc., can solve the problems that have not yet been developed and produced antibacterial polylactic acid fiber, etc., and achieve high fiber quality , Good effect of spinning and forming

Active Publication Date: 2007-01-10
SINOPEC YIZHENG CHEM FIBER
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  • Application Information

AI Technical Summary

Problems solved by technology

There are many researches and productions of antibacterial fibers at home and abroad, but there is no report on the development and production of antibacterial polylactic acid fibers.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment one: the treatment of antibacterial powder

[0014] Get 2Kg mean particle diameter and be the silver-containing inorganic antibacterial superfine powder (HN-300 of 0.25 micron; Jiangsu Hehai Nano Material Co., Ltd. production), put into vacuum drying oven, dry 4 hours under 130 ℃, the above-mentioned Put the powder into a 20-liter high-speed kneader, add 80 g of 25% ethanol solution of sodium petroleum sulfonate, and knead it for 100 minutes at 300 rpm, then put it into a vacuum drying oven and dry it at 100°C for 10 hours. The surface-treated functional antibacterial powder is obtained.

[0015] or--

[0016] Get 2Kg of silver-containing inorganic antibacterial superfine powders (HN-300; produced by Jiangsu Hehai Nano Materials Co., Ltd.) with an average particle size of 0.5 microns, put them in a vacuum drying oven, and dry them at 110°C for 6 hours. Put the powder into a 20-liter high-speed kneader, add 70g of 35% ethanol solution of potassium dodecyl ph...

Embodiment 2

[0017] Embodiment 2: Preparation of antibacterial polylactic acid masterbatch

[0018] Dry the pulverized 8Kg polylactic acid slices at 110°C for 20 hours, mix them with the 2Kg antibacterial powder after the above treatment, and add 100 grams of 60# paraffin as a lubricant. Extrude and granulate to obtain polylactic acid masterbatch with antibacterial function.

Embodiment 3

[0019] Embodiment 3: Production and manufacture of antibacterial polylactic acid fiber

[0020] Drying of slices: First, accurately measure polylactic acid slices and antibacterial masterbatches, add them to the vacuum drying equipment at a ratio of 50:1, dry them in vacuum at 95°C for 10 hours, then heat them up to 110°C and dry them in vacuum for 4 hours, then cool them down to 90°C in vacuum Dry for 2 hours.

[0021] Spinning: on the composite spinning machine (manufactured by Japan ABE Company), spinning is carried out with 240 ℃ of spinning temperatures, 1200M / min of winding speed, then on the Barmag3013 drafting machine, carry out drafting post-processing, draft ratio 3.5, The temperature of the hot plate is 80°C, and the temperature of the hot plate is 130°C to prepare antibacterial polylactic acid fibers.

[0022] The antibacterial test of the antibacterial polylactic acid fiber prepared by spinning shows that the antibacterial rate of the antibacterial polylactic aci...

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PUM

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Abstract

The invention offers antibiosis poly lactic acid fiber producing method. It processes inorganic superfine antibiosis powder contained silver firstly, make antibiosis agglomerate with smashed poly lactic acid slice which are processed cross blend melt spinning in certain proportion. The formed ploy lactic acid antibiosis fiber has the advantages of antibiosis, washable, good fiber forming and quality, and biodegradable.

Description

technical field [0001] The invention relates to a production method of polylactic acid fibers, in particular to a production method of polylactic acid fibers with antibacterial function, and belongs to the technical field of polymer material synthesis and processing. Background technique [0002] The raw material of polylactic acid is derived from natural renewable green plants and is biodegradable. It is a new type of green and environmentally friendly polymer material. Polylactic acid fiber combines the characteristics of natural fibers and synthetic fibers. It has unique properties in terms of moisture absorption and perspiration, flame retardancy, and UV resistance. It can be widely used in clothing, non-woven fabrics, carpets and other fields. In 2002, polylactic acid fiber was recognized by the US Federal Trade Commission (FTC) as a new type of fiber alongside cotton, wool, silk, nylon, polyester, etc. Polylactic acid is a thermoplastic polymer, and the spinning and f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/62D01F1/10
Inventor 江志荣孙国良季平张景臣张黎
Owner SINOPEC YIZHENG CHEM FIBER
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