Blue 4×6″ Direct Thermal Shipping Labels (100×150 mm)

Blue Thermal Labels 4×6″ (100×150 mm) for high-visibility shipping and barcode printing. Direct thermal economy paper with hot-melt adhesive and a neat perforation between each label. Ideal for ecommerce brands, warehouses and busy despatch teams using colour-coded workflows.

Confirmed in real use with Zebra GK420 (d/t), Citizen CL-S and TSC DA/TE 4″ printers. No ink or toner required — load the roll and print.

Key Features

Size: 4×6″ (100×150 mm) — UK standard for courier labels
Direct Thermal Economy paper — no ribbon needed
Perforation between each label for clean tear and quick handling
Hot-melt adhesive — strong bond on cardboard, films and plastics
High-visibility blue stock — ideal for priority orders, returns and branded workflows
Sharp print for barcodes and tracking codes
Designed for short-term use (shipping, picking, returns)
Works with Zebra GK420, Citizen CL-S and TSC 4″ thermal printers

Specifications

Label Size	4×6″ (100×150 mm)
Colour	Blue
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, barcodes, product ID, colour-coded workflows
Packs	Single roll, 10-roll, bulk trade packs

Printer Compatibility

These labels are used daily in:

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 shipping labels (Royal Mail, DPD, Evri, UPS)
Priority orders, returns and colour-coded pick waves
Warehouse barcodes and product identification
Box-end and shelf labels in busy fulfilment centres

Why Choose These Blue 4×6″ Labels

UK shipping standard size with high-visibility colour
Load-and-print simplicity — no ink or toner
Durable hot-melt adhesive for reliable sticking
Perforated for speed and clean separation
Cost-effective economy stock for high-volume use
UK stock and fast despatch for business continuity

Storage & Handling

Store in a cool, dry place away from heat and direct sunlight
Keep rolls in the bag/box until use to avoid dust on edges
Use within 12–18 months for best print quality (short-term applications)
Test adhesion on curved or low-energy plastics if critical

Helpful Links

Label-size guidance: Avery UK shipping label size guide.

Trade & Bulk Orders

Supplying ecommerce brands, fulfilment centres and warehouses across the UK. Real-world tested in busy despatch environments.

Bulk pricing tiers for 10+, 20+, 50+ rolls (mixed sizes/colours welcome)
UK warehouse stock for reliable repeat supply
Same-day despatch before cut-off; next-day courier options
Pallet shipping available for larger consignments
Purchase Orders accepted (business customers)
VAT invoices on every order; pro-forma on request
Samples for print and adhesion tests
Compatibility help for Zebra GK420, Citizen CL-S, TSC DA/TE and other 4″ printers
Colour-coding options: white, red, blue, yellow, orange
Spec sheets on request (size, core, adhesive, perforation)

For quotes and samples, message us on WhatsApp +44 7450 981838 or email info@mrbags.co.uk.

Delivery & Service

UK stock held in our local warehouse. Orders placed before 5 pm Monday–Friday are despatched the same day.

Royal Mail Tracked for reliable and fast delivery
DPD Next Day for time-sensitive orders
DPD Saturday Delivery available (paid upgrade)
Tracking details provided automatically after despatch
Secure packaging to protect rolls during transit

Please notify us in advance for urgent or weekend despatch so we can prioritise your order.

Customer Service & Support

Need help choosing the right size or placing a bulk order? Our team is here to assist you.

Support – quotes and samples via WhatsApp: +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 reply quickly with clear, practical guidance.