Mixed single-denier tow having O-shaped cross section and being used for tar reduction cigarette filter, and preparation method and application of mixed single-denier tow
A cigarette filter rod and tow technology, which is applied in the field of mixed single-denier tow for reduced-focus cigarette filter rods and its preparation, can solve the problems of high cost, low production efficiency, complex production process of special-shaped filter rods, etc., and achieve effective operation High efficiency, stable decoking efficiency and easy processing
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Embodiment 1
[0022] A method for preparing mixed single-denier tows for reduced-focus cigarette filter rods with O-shaped cross-sections. Dissolving vinegar slices in acetone to form a slurry, filtering the slurry, entering spinning equipment, and passing through the same spinneret. The spinneret holes of different apertures are spun to form three kinds of monofilaments with different linear densities. The spinnerets of the three different apertures are evenly distributed in the same spinneret according to the weight ratio; The thread densities are 2.3dtex, 2.7dtex, 3.0dtex respectively, and the ratio is 1:1:1. The cross-sectional shape of the monofilament is O-shaped, and the material of the monofilament is acetate fiber. A finished mixed monodenier fiber tow is produced. The breaking strength of the mixed single denier tow is ≥18.0N / Ktex, the water content is (6.0±1.6)%, the oil content is (0.70~1.50)%, the residual acetone content is ≤0.30%, and the titanium dioxide content is (0.40) ±...
Embodiment 2
[0024] A method for preparing mixed single-denier tows for reduced-focus cigarette filter rods with O-shaped cross-sections. Dissolving vinegar slices in acetone to form a slurry, filtering the slurry, entering spinning equipment, and passing through the same spinneret. The spinneret holes of different apertures are spun to form three kinds of monofilaments with different linear densities. The spinnerets of the three different apertures are evenly distributed in the same spinneret according to the weight ratio; The thread densities are 1.5dtex, 2.0dtex, 2.5dtex respectively, and the ratio is 1:1:1. The cross-sectional shape of the monofilament is O-shaped, and the material of the monofilament is acetate fiber. A finished mixed monodenier fiber tow is produced. The breaking strength of the mixed single denier tow is ≥18.0N / Ktex, the water content is (6.0±1.6)%, the oil content is (0.70~1.50)%, the residual acetone content is ≤0.30%, and the titanium dioxide content is (0.40) ±...
Embodiment 3
[0026] A method for preparing mixed single-denier tows for reduced-focus cigarette filter rods with O-shaped cross-sections. Dissolving vinegar slices in acetone to form a slurry, filtering the slurry, entering spinning equipment, and passing through the same spinneret. The spinneret holes of different apertures are spun to form three kinds of monofilaments with different linear densities. The spinnerets of the three different apertures are evenly distributed in the same spinneret according to the weight ratio; The thread densities are 2.0dtex, 2.5dtex, 3.0dtex, the ratio is 1:1:1, the cross-sectional shape of the monofilament is O-shaped, and the material of the monofilament is acetate fiber. A finished mixed monodenier fiber tow is produced. The breaking strength of the mixed single denier tow is ≥18.0N / Ktex, the water content is (6.0±1.6)%, the oil content is (0.70~1.50)%, the residual acetone content is ≤0.30%, and the titanium dioxide content is (0.40) ±0.20)%. Mixed si...
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