Guangdong Aces Machinery Co., Ltd. is one of the leading manufacturers and suppliers of large screen frame in China. With abundant experience, we warmly welcome you to wholesale the newest large screen frame from our factory. All customized machines are with high quality and low price. Welcome to contact us for quotation.
Large Screen Frame
Screen frame 700*1000mm , 800*1180mm, 900*1280mm
Bihong aluminum screen frames are custom-built for oval screen printing production lines. Fabricated from high-strength 6063-T5 aluminum alloy profiles and joined by integrated argon arc welding, they offer exceptional bending resistance.
Featuring a snap-fit design for quick assembly and disassembly, these frames are fully compatible with all Bihong oval printers. They sustain stable mesh tension during long-run mass production, delivering precise registration and crisp printing quality for apparel and fabric printing.
Key Features
1. High-strength aluminum alloy profile with outstanding bending resistance. Resists warping and sagging under high mesh tension during continuous production, keeping consistent printing results.
2. Full argon arc welding at corners, reinforced structure of Printing frame for screen printer. Smooth polished welds, ink leakage prevention, resistant to solvent and repeated cleaning for Screen printing frame longer service life.
3. Snap-fit design for quick mounting & removal. Simplifies screen changeover without extra tools, ideal for frequent color change in oval printing.
4. Aluminum screen printing frame Multiple Silk screen frame standard sizes available, custom large-size support. Standard options Large Screen Frame : 700×1000mm, 800×1180mm, 900×1280mm. Custom oversized frames are supported Screen frame for oval screen printing machine.
5. Stable mesh tension for precise registration. Sandblasted surface improves glue adhesion, low tension loss, guarantees accurate multi-color overprint for fine graphics.
6. Lightweight & easy maintenance. Anodized surface, corrosion-resistant against inks and cleaning agents, simple to clean and rust-proof.
Standard Operating Procedure (Introduction) for Electrostatic Flocking on Oval Screen Printing Machine
1. Oval Machine & Electrostatic Flocking Unit Operation Introduction (Core Process)
- Pre-production Equipment Setup
Level oval machine track, calibrate pallet positioning. Fix substrate on pallet without wrinkle.
Check electrostatic flocking unit: secure grounding cable, no high voltage leakage. Confirm workshop humidity 55–70% RH (too dry causes static spark risk; too wet reduces electrostatic force).
Power on flocking unit and pre-test high voltage output. Prepare flock feeding system and recovery bin.
Tunnel oven preheat and confirm stable temperature.
- Station Sequence
Station 1: Print flocking adhesive
Medium adhesive deposit, one stroke printing. For large logo with heavy coverage, double stroke can be applied.
Inspection: Adhesive layer continuous, no missing print, no bubbles.
Station 2: Electrostatic flocking unit
Medium high voltage setting (adjust according to fiber length & substrate). Charged flock vertically adsorb onto wet adhesive.
Keep proper distance between electrode and printed surface.
Station 3: Blow & brush station
Remove unattached loose flock; collect and recycle usable flock.
Important: Adhesive must remain wet when entering flocking chamber. Do NOT fully dry before flocking.
- In-process Inspection (Sampling every 20 pieces)
Registration: Crosshair deviation ≤0.2 mm
Flock coverage: No bare spots, uniform pile height
Rub test on spot check: No heavy flock falling off
Monitor workshop humidity and high voltage stability every hour
2. Curing Process
Flocked workpiece enter tunnel oven immediately after loose flock removal.
Tunnel oven parameter:
Surface temperature: 130–150°C
Belt speed: 8–12 m/min; curing time 90–120 s
Full hot air circulation
Curing target: Flocking adhesive fully crosslinked and solidified.
Insufficient curing: Heavy flock shedding; Over curing: substrate deformation / discoloration
Cool naturally to room temperature ≥15 min before handling.
- Post-processing & Quality Inspection
Performance Test
Dry rubbing test: No obvious flock loss
Hand feel: Velvet soft, uniform pile
Adhesion test: Tape test without mass flock peeling
Visual Inspection
Complete logo shape, no bare area, no flock agglomeration
No adhesive bleeding outside logo edge
Flock color consistent with approved sample
Non-conformance Handling
Poor flock adhesion: Check curing temperature / adhesive formula; Bare spots: Increase adhesive coating or adjust static voltage; Flock uneven: Check flock feeding and workshop humidity.
Troubleshooting
|
Defect |
Root Cause |
Countermeasure |
|
Bare spots on logo |
Insufficient adhesive; voltage too low; substrate surface contaminated |
Increase adhesive deposit; raise voltage; clean substrate |
|
Flock lies flat, no vertical pile |
Poor grounding; workshop humidity too high; electrode distance wrong |
Check grounding; adjust RH; re-calibrate electrode gap |
|
Flock shedding after rubbing |
Under-curing; wrong flocking adhesive |
Raise oven temperature / slow belt; change matched flocking binder |
|
Flock clumping |
Flock damp; adhesive has bubbles |
Dry flock; add defoamer and filter adhesive |
|
Adhesive bleeding |
Too thin adhesive; excessive squeegee pressure |
Increase viscosity; reduce squeegee pressure |
3.Cleaning, Storage & Safety
After production: Clean screen and squeegee immediately. Recycle unused flock, seal and store in dry place.
Adhesive storage: Seal, cool and dry storage, avoid freezing.
- High voltage safety rules
Operator cannot touch electrode when power on.
Flocking area keep ventilated, avoid flock dust accumulation (dust explosion risk).
Ground all metal equipment.
Record: Production log, adhesive formula, voltage setting, workshop humidity, batch number, approved sample ID.
- Document Archiving
Pre-production flocking sample
Screen film archive
Adhesive mixing record
Tunnel oven temperature record
Rubbing / adhesion test report
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