Red Thermal Labels 4×6″ (100×150 mm) give instant visibility for priority orders, returns and colour-coded picking. These direct thermal economy labels use a permanent hot-melt adhesive and include a tidy perforation between each label for quick tear-off at the bench.
Proven in daily use with Zebra GK420 (d/t), Citizen CL-S and TSC DA/TE 4″ printers. No ribbon required — load the roll and print.
Key Features
- 4×6″ (100×150 mm) — widely used UK courier label size
- Direct thermal paper — print with heat, no ink or toner
- Perforated between each label for fast, clean separation
- Hot-melt permanent adhesive — bonds to cardboard, film and most plastics
- High-contrast red stock — ideal for batching, priorities and area codes
- Sharp barcode/QR output with standard contrast settings
- Designed for short-term despatch and warehouse tasks
- Compatible with Zebra GK420, Citizen CL-S and TSC 4″ direct thermal models
Specifications
| Label Size | 4×6″ (100×150 mm) |
| Colour | Red |
| Material / Type | Direct Thermal Economy paper |
| Adhesive | Hot-melt, permanent |
| Perforation | Yes — between each label |
| Core Size | 1″ (25 mm) |
| Printer Compatibility | Zebra GK420 series, Citizen CL-S series, TSC DA/TE series |
| Typical Use | Courier labels, colour-coded picks, barcodes, product ID |
| Packs | Single roll, 10-roll, bulk trade packs |
Printer Compatibility
Used across UK despatch teams with:
- Zebra GK420d / GK420t
- Citizen CL-S series
- TSC DA210 / DA220 and TE series
Also suitable for other 4″ direct thermal printers that accept 100 mm media width.
Common Uses
- Courier labels for Royal Mail, DPD, Evri and UPS
- Priority orders, wave picking and returns lanes
- Warehouse barcodes and shelf/bin identification
- Brand or route-coded labelling in fulfilment
Why Choose These Red 4×6″ Labels
- Standout red colour improves picking accuracy and order routing
- Heat-print simplicity — no consumables beyond the roll
- Reliable hot-melt adhesive for busy packing benches
- Perforated format speeds handling in high-volume runs
- Cost-effective economy stock for daily shipping
- Fast UK despatch and consistent supply for business buyers
Storage & Handling
- Keep in a cool, dry place away from heat or direct sunlight
- Leave rolls sealed until needed to avoid dust on edges
- Use within 12–18 months for best print performance
- Trial on curved or low-energy plastics if adhesion is critical
Helpful Links
- All Labels
- White 4×6″ Labels
- Blue 4×6″ Labels
- Orange 4×6″ Labels
- Mailing Bags
- Cardboard Boxes
- Packaging Tape
- Integrated Labels
Label size guidance: Avery UK shipping label size guide.
Trade & Bulk Orders
Supplying ecommerce brands, fulfilment centres and warehouses nationwide. Built for real packing environments.
- Volume pricing at 10+, 20+, 50+ rolls (mixing sizes/colours is fine)
- UK warehouse stock for dependable repeat supply
- Same-day despatch before 5 pm Mon–Fri; next-day courier available
- Pallet options for large consignments
- POs accepted for business accounts
- VAT invoices provided; pro-forma on request
- Samples & spec sheets available for print/adhesion tests
- Compatibility help for Zebra GK420, Citizen CL-S, TSC DA/TE and other 4″ models
Quotes or samples: WhatsApp +44 7450 981838 or info@mrbags.co.uk.
Delivery & Service
UK stock. Orders placed before 5 pm Monday–Friday despatch the same day.
- Royal Mail Tracked for dependable delivery
- DPD Next Day for time-critical shipments
- DPD Saturday Delivery available (paid upgrade)
- Tracking sent automatically after despatch
- Secure packaging protects rolls in transit
Please let us know in advance for urgent or weekend despatch.
Customer Service & Support
Need help choosing the right roll or placing a bulk order?
- WhatsApp support: +44 7450 981838
- Email: info@mrbags.co.uk
- Click & Collect: 10A Locket Street, Manchester, M8 8EE
- Opening hours: Mon–Fri 10:00–19:00 | Sun 11:00–18:00
We respond quickly with clear, practical guidance.
| Size | 4x6 Inch (102x152 mm) |
| Color | Red |
| Adhesive | Hot-melt (Permanent) |
| Core Size | 1 Inch (25 mm) |
| Perforation | Yes (Between Each Label) |
| Printer Compatibility | Citizen CL-S, TSC DA, Zebra GK420 |
| Type | Direct Thermal Economy |
Will these 4×6″ red thermal labels work with Zebra printers?
Yes. These 4×6″ (100×150 mm) direct thermal labels are used with Zebra GK420d and GK420t where roll-fed media is supported.
Are they compatible with Citizen and TSC printers?
Yes. Commonly used in Citizen CL-S series and TSC DA/TE printers for 4″ direct thermal printing.
Do these labels need ink or a ribbon?
No. They print using heat only. No ink, ribbon or toner is required.
Is there a perforation between labels?
Yes. Each label is separated by a perforation to speed up tear-off and packing.
What adhesive do these labels use?
A hot-melt permanent adhesive that bonds to cardboard, film and most plastics.
Does the red colour affect barcode scanning?
Barcodes remain readable with standard contrast settings. If you run custom scanner profiles, test a sample.
What is the core size and metric size?
The core is 1″ (25 mm). The size is 4×6″ which equals 100×150 mm.
Are these for long-term or outdoor use?
They are for short-term tasks in dry indoor settings. Direct thermal paper may fade with moisture, heat or sunlight.
Any storage tips to protect print quality?
Store cool and dry, away from heat/sunlight. Keep rolls sealed until use to avoid dust on the edges.
Royal Mail 24 Tracked
Dispatched same day if ordered before 5 pm Monday to Friday. Please allow up to 1-2 days for delivery.
£1.99
DPD Next Day
Dispatched same day if ordered before 3 pm Monday to Thursday. Not available to Scottish Highlands & Islands.
£4.99
Free on orders over £100