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Spinning of Cellulose Acetate Tow for Cigarettes (Core Scenario)
Tobacco tow (usually 2.5D-5D multifilaments, with 1000-3000 monofilaments per tow) is the core raw material for cigarette filters. Its "filament diameter uniformity" directly affects filtration efficiency. Through the "low-pulsation conveying design" (pressure fluctuation ≤ ±0.3MPa), the gear metering pump stably conveys the spinning dope to the spinneret, avoiding "filament breakage" or "fuzzy filaments".
The "solvent-resistant structure" (pump body made of 316L stainless steel, seals made of PTFE) adapts to acetone/acetic acid solvents, ensuring no leakage during 24/7 continuous operation.
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Spinning of Cellulose Acetate for Filter Materials
Used in air filters and water filtration membranes, this requires accurately controlled dope flow rate and conveying speed to ensure "uniform solvent precipitation rate". This forms a fiber structure with uniform pore size (usually 1-10μm), guaranteeing filtration precision and flux stability.
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Spinning of Cellulose Acetate for Medical Dressings
Medical-grade fibers for absorbable dressings require "no impurity contamination". The fully enclosed flow channel design prevents dope from contacting air. High-precision metering ensures fiber gram weight uniformity (deviation ≤ ±1%), controlling liquid absorption capacity and degradation rate.