Improvement of Flocking Quality Through High-voltage Power Supply Optimization in Electrostatic Flocking
Optimization Mechanism of High-voltage Electric Field Parameters
The electric field intensity of high-voltage power supply directly determines the orientation accuracy and implantation depth of flocking fibers. Experimental data indicates that when the field strength reaches 4kV/cm, nylon fibers achieve stable flight time of 15-25 seconds with highly linear trajectories, reducing lateral drift rate by 32%. Dynamic voltage compensation technology maintains field uniformity within ±2.5%, decreasing density distribution standard deviation from 18.6% to 6.8%. For complex curved surfaces, the adaptive voltage division system maintains optimal 3D field gradient at 0.8-1.2kV/mm.
Electrical Characterization and Pretreatment of Flocking Fibers
The dielectric constant and volume resistivity of fibers are critical for charging efficiency. Plasma treatment (30s at 65% RH) increases acrylic fiber's surface charge density to 2.1×10^4 C/m², 47% higher than untreated samples. Charge relaxation modeling reveals extended decay time to 12.8 minutes post-treatment, 3.2 times longer than conventional processes. This enhancement improves vertical implantation rate, boosting product abrasion resistance from 8,500 to 13,500 cycles.
Multi-physical Field Coupling Control System
The innovative coupling control system coordinates electrostatic, airflow, and thermal fields. In closed systems, 0.3-0.5m/s laminar flow with 25℃ constant temperature reduces 0.5mm fiber dispersion to 8.3%. Real-time impedance monitoring modules dynamically adjust output waveforms, maintaining voltage ripple below 1.2%. This precision control decreases surface roughness Ra from 1.82μm to 0.73μm, meeting premium textile tactile standards.
Quality Evaluation System Implementation
The six-dimensional quality assessment system, compliant with ISO/IEC 17025, incorporates critical indicators including flight time and orientation deviation. Novel online detection using high-frequency pulsed fields (5kHz, 50μs) completes 200×200mm charge distribution imaging within 0.8s. Big data analysis reveals significant positive correlation (R²=0.92) between wash resistance and field strength when relaxation time constant τ＞180s, reducing defect rate from 3.7% to 0.9%.
