Eccentric skin-core-type antibacterial-functional composite polyester fibre and preparation method thereof

A composite polyester, sheath-core 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

Inactive Publication Date: 2013-10-09
JIANGSU ZHENYANG NEW SYNTHETIC FIBER
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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 skin-core-type antibacterial-functional composite polyester fibre and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Pre-knead 20 kilograms of nano-silver antibacterial agent and 80 kilograms of PTT polyester chips, the kneading temperature is 120 ° C, and the kneading time is 60 minutes; then melt blending through a twin-screw extruder to obtain a nano-antibacterial agent content of 20wt%. granules, fully dried for later use.

[0016] 99.5 kilograms of cortex PTT chips (pre-dispersed with 0.5 kilograms of antibacterial masterbatches, wherein the antibacterial agent content accounts for 0.1wt% of the total mass of the cortex polyester) and 400 kilograms of core layer PET chips are respectively used with twin-screw extruder and single The screw extruder unit melts and conveys. Among them, the temperature of the PTT component twin-screw unit is set at 230-265°C, and the box temperature is 260°C; the temperature of the PET component single-screw unit is set at 260-295°C, and the box temperature is 292°C; the common box temperature is 290°C. The melts enter the spinning box body through ...

Embodiment 2

[0018] 10 kg of nano-silver antibacterial agent and 90 kg of PTT polyester chips are pre-kneaded, the kneading temperature is 120 ° C, and the kneading time is 60 min; then melted and blended through a twin-screw extruder to obtain a nano-antibacterial agent content of 10wt%. granules, fully dried for later use.

[0019] 99 kilograms of cortex PTT chips (pre-dispersed with 1 kilogram of antibacterial masterbatch, wherein the antibacterial agent content accounts for 0.1wt% of the total mass of the cortex polyester) and 400 kilograms of core layer PET chips are respectively used with twin-screw extruder and single The screw extruder unit melts and conveys. Among them, the temperature of the PTT component twin-screw unit is set at 230-265°C, and the box temperature is 260°C; the temperature of the PET component single-screw unit is set at 260-295°C, and the box temperature is 292°C; the common box temperature is 290°C. The melts enter the spinning box body through the distributi...

Embodiment 3

[0021] Pre-knead 10 kg of nano-silver antibacterial agent with 90 kg of PTT polyester chips, the kneading temperature is 140 ° C, and the kneading time is 30 min; then melt blending through a twin-screw extruder to obtain a matrix with a nano-antibacterial agent content of 10 wt%. granules, fully dried for later use.

[0022]95 kilograms of cortex PTT slices (pre-dispersed with 5 kilograms of antibacterial masterbatches, wherein the antibacterial agent content accounts for 0.5wt% of the total mass of cortex polyester) and 400 kilograms of core layer PET chips are respectively used twin-screw extruder and single The screw extruder unit melts and conveys. Among them, the temperature of the PTT component twin-screw unit is set at 230-265°C, and the box temperature is 260°C; the temperature of the PET component single-screw unit is set at 260-295°C, and the box temperature is 292°C; the common box temperature is 290°C. The melts enter the spinning box body through the distributio...

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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Abstract

The to-be solved problem of the invention is to provide a high-elastic-modulus composite polyester fibre and a preparation method thereof; by employing a skin-core type unsymmetrical structure, high elasticity of the structure is realized; and by adding antibacterial functional master batches into a skin layer, multifunctionality of the fiber is realized. The fibre consists of the skin layer with an antibacterial functional material and a core layer; wherein the skin layer employs a PTT polyester composite composition accounting for 20 wt%-60 wt% of the total weight of the composite fiber, and the core layer employs conventional PET polyester. The preparation method comprises: (1) pre-kneading a nanometer antibacterial agent and PPT polyester chips, melting and blending to obtain the nanometer antibacterial master batches; (2) solving problems of crystallization stability and uniformity in drying process of PTT chips and PET polyester chips, and controlling the water content at 25 ppm; and (3) performing melt conveying on the dried skin-layer PTT chips and core-layer PET chips respectively by a double screw extruder group and a single screw extruder group.

Description

technical field [0001] The invention relates to a composite polyester fiber with high elastic modulus and a production method thereof, in particular to an eccentric skin-core type composite polyester fiber with PTT containing antibacterial functional materials as the skin layer and PET as the core layer and its preparation method . Background technique [0002] Functional fibers refer to fiber materials that can provide special functions in terms of comfort, health care, safety, etc., and can be applied under special conditions. Hand feeling and other aspects have become materials with high sensitivity, which meets people's increasing pursuit of personalization, taste, refinement, comfort and functional textiles. A variety of functional fiber textiles at home and abroad continue to come out, and are increasingly favored and concerned by consumers, becoming an important factor to guide the market and improve the viability of enterprises. Fiber fabrics in the European and Ame...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/14D01F1/10D01D5/34B29C47/92B29C48/92
CPCB29C2948/92704B29C2948/92895B29C48/40
Inventor 朱美芳张思灯殷翔芝周哲蒋守朋李海军
Owner JIANGSU ZHENYANG NEW SYNTHETIC FIBER
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