Eccentric sheath-core composite polyester fiber with anti-bacterial function and preparation method thereof

A composite polyester and composite fiber technology, applied in fiber treatment, fiber chemical characteristics, conjugated synthetic polymer artificial filament, etc., can solve the problem of low localization rate of PTT fiber, achieve fiber multifunctionality, reduce Effects of production cost and usage reduction

Active Publication Date: 2013-12-25
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A small number of chemical fiber manufacturers have also developed PTT fibers through close cooperation with Shell and DuPont, but the localization rate of PTT fibers is relatively low

Method used

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  • Eccentric sheath-core composite polyester fiber with anti-bacterial function and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 20 kilograms of nano-silver antibacterial agent and 80 kilograms of PTT polyester chips are pre-kneaded, the kneading temperature is 120 ° C, and the kneading time is 60 min; then through the twin-screw extruder melt blending to obtain a nano-antibacterial agent content of 20wt% mother. Granules, fully dry for use.

[0032]99.5 kg of dried skin PTT chips (pre-dispersed with 0.5 kg of antibacterial masterbatch, in which the content of antibacterial agent accounts for 0.1 wt% of the total mass of the skin polyester) and 400 kg of core layer PET chips were extruded with a twin-screw extruder unit and a single The screw extruder unit is melted and conveyed. The temperature of the PTT component twin-screw unit is set to 230-265 °C, and the temperature of the box is 260 °C; the temperature of the PET component single-screw unit is set to 260 to 295 °C, the temperature of the box is 292 °C, and the temperature of the public box is 290 °C. The melts respectively enter the spin...

Embodiment 2

[0034] 10 kilograms of nano-silver antibacterial agent and 90 kilograms of PTT polyester chips are pre-kneaded, the kneading temperature is 120 ℃, and the kneading time is 60min; then through twin-screw extruder melt blending to obtain a mother with a nanometer antibacterial agent content of 10wt%. Granules, fully dry for use.

[0035] The dried 99 kg cortex PTT chips (pre-dispersed with 1 kg antibacterial masterbatch, in which the content of the antibacterial agent accounts for 0.1wt% of the total mass of the cortex polyester) and 400 kg core PET chips were extruded with twin-screw extruder and single. The screw extruder unit is melted and conveyed. The temperature of the PTT component twin-screw unit is set to 230-265 °C, and the temperature of the box is 260 °C; the temperature of the PET component single-screw unit is set to 260 to 295 °C, the temperature of the box is 292 °C, and the temperature of the public box is 290 °C. The melts respectively enter the spinning box t...

Embodiment 3

[0037] 10 kilograms of nano-silver antibacterial agent and 90 kilograms of PTT polyester chips are pre-kneaded, the kneading temperature is 140 ° C, and the kneading time is 30 min; then through the twin-screw extruder melt blending to obtain a mother with a nano-antibacterial agent content of 10wt%. Granules, fully dry for use.

[0038] 95 kg of dried skin PTT chips (pre-dispersed with 5 kg of antibacterial masterbatch, in which the content of antibacterial agent accounts for 0.5wt% of the total mass of the skin polyester) and 400 kg of core layer PET chips were respectively used twin-screw extruder unit and single The screw extruder unit is melted and conveyed. The temperature of the PTT component twin-screw unit is set to 230-265 °C, and the temperature of the box is 260 °C; the temperature of the PET component single-screw unit is set to 260 to 295 °C, the temperature of the box is 292 °C, and the temperature of the public box is 290 °C. The melts enter the spinning box t...

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Abstract

The invention relates to an eccentric sheath-core composite polyester fiber with an anti-bacterial function and a preparation method of the eccentric sheath-core composite polyester fiber. The composite polyester fiber comprises a sheath layer and a core layer, and has an eccentric sheath-core structure; the sheath layer consists of polytrimethylene terephthalate (PTT) polyester and nanometer antibacterial agents while the core layer is polyethylene glycol terephthalate (PET) polyester. A preparation method comprises the following steps: (1) preparing antibacterial masterbatch; (2) slicing PTT and performing pre-dispersion on the sliced PTT and antibacterial masterbatch to obtain sheath-layer polyester; slicing the sheath-layer polyester and core-layer PET and melting and conveying the sliced sheath-layer polyester and core-layer PET by respectively using a twin-screw extrusion unit and a single-screw extrusion unit to each spinneret orifice of an eccentric sheath-core spinneret plate; shooting out of the spinneret orifices; finally, cooling and solidifying. The composite polyester fiber has the characteristics of high elasticity, comfort and the like of the conventional composite polyester fiber without post-heat treatment, and also has the anti-bacterial function; in addition, because an antibacterial agent is only loaded on the sheath layer, the influence on the cost is reduced; and therefore, the eccentric sheath-core composite polyester fiber can be widely applied to the fields of blanket fabrics, home textile fabrics and the like.

Description

technical field [0001] The invention belongs to the field of high-elasticity-modular composite polyester fibers and the preparation thereof, in particular to an eccentric sheath-core type antibacterial function composite polyester fiber and a preparation method thereof. Background technique [0002] Functional fibers refer to fiber materials that can provide special functions such as comfort, health care, and safety, and can be applied under special conditions. It has become a material with high sensitivity in terms of hand feel and other aspects, which meets people's increasing pursuit of personalized, tasteful, refined, comfortable and functional textiles. Various functional fiber textiles at home and abroad continue to come out, and they are more and more favored and concerned by consumers, becoming an important factor to guide the market and improve the viability of enterprises. , Antistatic, UV shielding, negative oxygen ions and other high-functional fibers have great...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/14D01F1/10D01D5/34D01D5/08D01D5/088D01D1/00
Inventor 朱美芳张思灯孙宾蒋守朋殷翔芝
Owner DONGHUA UNIV
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