Two-component polyester sheath core compound fibre and production method
A composite fiber and two-component technology, applied in fiber processing, conjugated synthetic polymer artificial filament, filament/thread forming, etc., can solve the problem of insufficient vividness of disperse dyes, high refractive index of fiber matrix, and poor dyeing performance And other problems, to achieve the effects of significant impermeability, easy dyeing, and good fabric performance
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[0015] ①Extrude 60-80% by weight (example 60%, 70%, 80%) of ultra-dull matt chips with a titanium dioxide content of 5-10% (example 5%, 6.35%, 10%) through the first component screw The temperature of each zone of the extruder is between 280-295 degrees (for example, 280 ° C, 288 ° C, 295 ° C), so that it melts into a molten state, flows to the metering pump, and presses it into the component after metering, and distributes it in the component. in the core component;
[0016] ② Pass 20-40% (eg 40%, 30%, 20%) of the cationically dyeable polyester chips by weight through the second component screw extruder, and the temperature of each zone of the extruder is between 280-295 degrees (eg 280 ℃, 288 ℃, 295 ℃), make it melt into a molten state, flow to the metering pump, press it into the component after accurate measurement, and distribute it into the skin component in the component; the cationically dyeable polyester chips are suitable for The copolymer of phthalic acid, ethylene...
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