Viscose filament with abnormal section, preparation method thereof and spinneret assembly
A technology of viscose filaments and special-shaped cross-sections, which is applied in filament/thread forming, wet spinning, textiles and papermaking, etc. It can solve the problem of fewer varieties and achieve large air volume, two-way adjustment of warm in winter and cool in summer, Good two-way adjustment effect
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Embodiment 1
[0031] Equipment: Alkali cellulose manufacturing: dipping, pressing and powdering combined machine;
[0032] Viscose manufacturing: yellowing kneading and dissolving machine, post-dissolving machine, plate and frame filter press, defoaming barrel;
[0033] Spinning: semi-continuous centrifugal spinning machine;
[0034] Post-processing: washing machine, dehydrator, dryer, winding machine;
[0035] Process conditions:
[0036] Spinning glue conditions: α-cell: 8.25%, NaOH: 5.8%, S: 2.25%
[0037] Viscosity: 30~40S (20℃, falling ball), maturity: 8.4ml (10%NH 4 CL);
[0038] Coagulation bath condition: H 2 SO 4 : 132g / l, Na 2 SO 4 : 265g / l, ZnSO 4 : 10g / l,
[0039] Tep: 51°C;
[0040] Spinning conditions: spinneret specifications: cross-hole shape, the width and length of each blade are 1:3.5,
[0041] Spinning speed: 83.7m / min; spinneret draw: 82.9%, draft: 25%,
[0042] Tight hold: 2.67%;
[0043] Silk cake washing condi...
Embodiment 2
[0048] Equipment: Alkali cellulose manufacturing: classical impregnation press, coarse and fine grinder;
[0049] Viscose manufacturing: yellowing kneading and dissolving machine, post-dissolving machine, plate and frame filter press, defoaming barrel;
[0050] Spinning: semi-continuous centrifugal spinning machine;
[0051] Post-processing: washing machine, dehydrator, dryer, winding machine;
[0052] Process conditions:
[0053] Spinning glue conditions: α-cell: 8.3%, NaOH: 5.8%, S: 2.35%,
[0054] Viscosity: 30~40S (20℃, falling ball), Maturity: 8.0ml (10%NH 4 CL);
[0055] Coagulation bath condition: H 2 SO 4 : 130g / l, Na 2 SO 4 : 265g / l, ZnSO 4 : 10.5g / l,
[0056] Tep: 52°C;
[0057] Spinning conditions: Spinneret specifications: cross-hole shape, the width and length of each blade are 1:5;
[0058] Spinning speed: 81.7m / min, spinneret draw: 78.4%, draft: 25%,
[0059] Tight pull: 4.12%;
[0060] Silk cake washing ...
Embodiment 3
[0065] Equipment: Alkali cellulose manufacturing: classical impregnation press, coarse and fine grinder;
[0066] Viscose manufacturing: yellowing kneading and dissolving machine, post-dissolving machine, plate and frame filter press, defoaming barrel;
[0067] Spinning: semi-continuous centrifugal spinning machine;
[0068] Post-processing: washing machine, dehydrator, dryer, winding machine;
[0069] Process conditions:
[0070] Spinning glue conditions: α-cell: 8.3%, NaOH: 5.8%, S: 2.35%,
[0071] Viscosity: 30~40S (20℃, falling ball), maturity: 9.0ml (10%NH 4 CL);
[0072] Coagulation bath condition: H 2 SO 4 : 138g / l, Na 2 SO 4 : 265g / l, ZnSO 4 : 11g / l,
[0073] Tep: 54°C;
[0074] Spinning conditions: Spinneret specifications: cross-hole shape, the width and length of each blade are 1:8;
[0075] Spinning speed: 77m / min, spinneret draw: 90%, draft: 20%,
[0076] Tight pull: 4.12%;
[0077] Silk cake washing condit...
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