热敏纸标签涂布复合机

A complete line usually includes:
Unwinder with automatic tension control
Pre-coating (basecoat) unit
Thermal coating unit (blade/coating bar)
Multi-zone hot air drying oven
Back wet coating section
Finishing Cylinders
Online Calender
Rewinder or slitter rewinder
Electrical control system with PLC + HMI

Thermal paper requires two coatings:
Basecoat (primer): Fillers like Kaolin,CaCO3,adhesives like PVA,Latex, Modified starch and other agents like dispersing agent,lubricating agent.
Thermal coat: leuco dye, developer (BPA/BPS-free options), sensitizer, binder, protective additives
The formulation depends on printing sensitivity, image density, and end-use application.

A standard 1.4 meter thermal paper line typically needs:
Electrical: 80–150 kW
Steam: 0.6–1.0 MPa for drying cylinders
Compressed air: 0.6–0.8 MPa
Exhaust system with optional heat recovery
VOC-free water-based chemistry ensures compliance with environmental standards

Yes. Most modern coating lines support single-side and dual-side coating. Additional coating heads and drying capacity may be required if back-coat layers or protective overcoats (TOC) are needed.

For best results, the base paper should meet:
Paper type:Woodfree offset paper
Grammage: 40–60 gsm
Smoothness: ≤ 20–30 μm
Moisture: 6–8%
Low porosity and good surface uniformity
High-quality base paper improves coating uniformity and printing sensitivity.

Professional suppliers offer:
On-site installation and commissioning
Training for operators and maintenance staff
Coating formula guidance and process parameters
Spare parts support
Online technical service and remote diagnostics
These ensure quick startup and stable long-term production.

A thermal paper coating machine line is a complete production system designed to apply basecoat and thermal coating chemicals onto raw jumbo paper rolls. It includes unwinding, coating, drying, calendering, slitting, and rewinding units, enabling continuous production of finished thermal paper rolls used for POS receipts, labels, lottery tickets, and medical printing.

Production capacity varies by machine width and speed. Standard lines operate at 150–250 m/min, while advanced high-speed models reach 300–500 m/min. A typical 1,350 mm line produces 8–15 tons/day, depending on coating formula, drying efficiency, and paper grammage.