For fulfillment managers & e‑commerce ops directors who demand zero jams, razor-sharp barcodes, and on-time delivery — even at high volumes. Stop overpaying for labels that let you down.
✅ 10,000+ B2B clients worldwide · ✅ ISO 9001 / RoHS / FSC certified · ✅ 98.7% on-time rate
You buy low-cost labels, but face a 12–18% waste rate due to peeling, smudging, or mis-feeds. That "bargain" adds $0.03–$0.06 per shipped order in reprints and labor.
Weak thermal coating causes faded barcodes 3–6 months later. UPS/FedEx scanners reject them → delayed shipments → angry customers. 1% rejection rate can cost $12k+ annually for a mid-size warehouse.
Overseas suppliers miss deadlines — you're stuck with 6–8 week lead times. Then labels arrive half-crushed, adhesive fails in cold weather, and your "$0.02 saving" becomes a $0.15 emergency reorder.
"4×6" labels that vary ±1.5mm cause misalignment in your printer tray. That means 15 extra minutes per shift clearing jams — 60 hours of wasted labor a year.
FBA, FedEx Ground, and USPS have strict label standards. Non-compliant labels trigger surcharges or return-to-sender fees — average $3.50 per violation. Not a "penny" problem.
We've been perfecting thermal paper since 1993. Our 4×6 direct thermal labels are designed to eliminate the 5 hidden costs above. Here's how:
No middlemen. Own 50,000㎡ production base with 17 high-speed coaters. Save 20–35% vs. branded resellers while getting premium raw materials (Mitsubishi / Ricoh top-coat).
Thickness tolerance ±0.02mm, core diameter precision ±0.3mm. Compatible with Zebra, Brother, Rollo, Munbyn, and all major 4×6 thermal printers. Tested on 50,000+ rolls per batch.
High-sensitivity thermal coating (top layer ≥2.2μW/cm²). Barcodes remain scannable for 3+ years under normal storage. Passes ASTM D5486 severe adhesive testing.
From artwork to shipped — 12–18 working days for custom prints. Stock rolls ship in 48 hours. Shenzhen warehouse + US subsidiary buffer stock for rush orders.
OEM/ODM: your logo, barcode patterns, perforation, slitting, rewinding. Choose permanent, removable, or freezer-grade adhesive. Minimum order: just 50 rolls for custom.
FSC™ certified paper, RoHS, REACH, BPA-free. Meets USPS / FedEx / UPS / FBA strict requirements. Full documentation for customs and regulatory audits.
| Parameter | Kingcolor Standard | Industry Avg. | Benefit |
|---|---|---|---|
| Size (W×L) | 101.6mm × 152.4mm (4"×6") | 101.6×152.4mm (varies) | Universal fit, zero trimming |
| Core Diameter | 25.4 mm / 1" (±0.3 mm) | 25.4 mm (±1.5 mm) | Perfect printer alignment |
| Label Thickness | 0.12 mm (±0.02 mm) | 0.10–0.15 mm (loose) | Jam-free feeding |
| Thermal Sensitivity | ≥ 2.2 μW/cm² | ≥ 1.8 μW/cm² | Deep black, low print energy |
| Adhesive Strength | ≥ 12 N/25mm (permanent) | ≥ 8 N/25mm | Sticks on cardboard, poly bags |
| Operating Temp | -40°C ~ 80°C | -20°C ~ 60°C | Cold-chain & warehouse safe |
| Shelf Life | 3+ years (scannable) | 1–2 years | Bulk buy with confidence |
| Certifications | ISO 9001, FSC, RoHS, REACH, BPA-free | Varies | Compliant for global trade |
4x6 shipping label paper shipping label 6x4 shipping labels 4x6
*All data from SGS-tested batch reports. Custom specs available for volume contracts.
50,000㎡ factory · 17 coating lines
Automated slitting ±0.1mm precision
In-house Q.C. lab · SGS standard testing
"We switched to Kingcolor 4×6 labels 18 months ago. Our printer jam rate dropped from 2.3% to 0.4% — saving us ~$37,000/year in labor and reprints. The adhesive holds perfectly on our poly bags even in Tennessee humidity."
✅ 82% fewer jams · ✅ $37k annual savings
"We audit label quality for 200+ warehouses. Kingcolor's batch consistency is the best we've seen from Chinese manufacturers — thickness variance under 0.02mm and barcode readability >99.5%. They've become our recommended supplier."
✅ 99.5% readability · ✅ Recommended status
"We run 50,000+ labels a day during peak. Kingcolor's turnaround for custom FBA-compliant labels is 14 days — half what our previous supplier needed. And the pricing is transparent, no hidden shipping surcharges."
✅ 14-day custom turnaround · ✅ Transparent pricing
"For our cold-chain medical kits, we needed labels that survive -30°C storage. Kingcolor provided freezer-grade samples with full test data — and they passed our validation on the first try. Now we order 500 rolls/month."

✅ -30°C certified · ✅ 500 rolls/month recurring
"The biggest surprise was the shipping cost — Kingcolor quoted DDP with all duties included. No last-minute customs fees. The labels arrived in 6 days to Manchester. Quality is on par with Avery but at 40% less cost."
✅ 6-day delivery UK · ✅ 40% cost reduction
Our 4×6 labels work flawlessly with Zebra (GK420, ZD620, ZT410), Brother (QL-1060N, TD-4750), Rollo, Munbyn, JADENS, Polono, and all major direct thermal printers using 1" core. We also offer 0.5" / 1.5" cores on request. If your printer accepts 101.6×152.4mm fanfold or roll labels — it's compatible.
For custom OEM/ODM (your logo, barcode, text): 50 rolls per design. For stock blank labels: no MOQ — order 1 roll to test. Custom artwork setup costs $0 (free artwork check within 24h).
We offer DDP (Delivered Duty Paid) terms for all US orders — you pay exactly what you see, no surprise customs fees. Typical delivery: 5–8 business days via DHL/FedEx Priority. For large pallet orders (200+ rolls), we use ocean freight with door-to-door service, saving 30–50% on freight cost.
Yes — absolutely. We provide free 10-sheet sample packs (or 1 small roll) with free shipping. You test print quality, adhesion, and scanner readability. Request your sample kit here — delivered in 3–5 days to any US address.
Three standard options — plus custom formulations:
All adhesives are UL recognized and RoHS compliant.
We follow ISO 9001:2015 procedures with in-process and final QC checks:
Each batch gets a unique traceability code — full SGS report available on request.
We accept T/T wire transfer, Letter of Credit (L/C), PayPal (for samples), and Alibaba Trade Assurance. For first-time US buyers, we offer net‑30 terms after credit check (for orders above $5,000). All payments are processed through secure banking channels.
30-day money-back guarantee on first order if labels don't meet specifications. Dedicated account manager for every B2B client. 24/7 WhatsApp support + email support within 2 hours. We also provide free printhead cleaning kits with every bulk order to prevent residue buildup.
See the difference in print density, adhesive strength, and jam-free feeding. No credit card needed. Free shipping to any US business address.
Or contact us directly: +86-15625231989 (WhatsApp) · deborra@dcolorpaper.com