The straight tuck end (STE) folding carton is the workhorse of electronics accessory packaging — efficient to manufacture, compact to ship flat, and capable of premium presentation when finished with aqueous coating and precision Spot UV. Manufactured by Guangdong Bincai Color Printing Co., Ltd., a 22-year Foshan paper box specialist with ISO 9001:2015 and FSC Chain-of-Custody certifications, this carton prints on 350gsm CCNB (clay-coated newsback) or coated duplex board on the KBA Rapida 105 4-color offset press at 200 LPI, then receives inline matte aqueous coating with selective Spot UV on the Heidelberg Speedmaster CD 102 7+1 UV press.
Spot UV accents on logo areas, product images, or feature callouts create a tactile contrast against the matte background — the consumer’s fingers register the difference between smooth matte and glossy raised UV before they even read the text. With an 18,000 sqm dual-factory and 1.7 million boxes daily output capacity, Bincai handles electronics accessory volumes from startup Kickstarter campaigns to multinational retail chains.
Applications
| Industry | Product Category | Typical Use |
|---|
| Consumer Electronics | Audio accessories | Earbuds, wireless earphones, charging cases |
| Mobile Accessories | Phone accessories | Cases, screen protectors, grips, stands |
| Computer Peripherals | Cables & adapters | USB-C cables, HDMI adapters, dongles |
| Wearables | Smartwatch bands & accessories | Replacement bands, chargers, screen protectors |
| Power & Charging | Power banks & chargers | Portable chargers, wireless charging pads |
| Gaming | Console accessories | Controller grips, cases, cable kits |
| Photography | Camera accessories | Lens filters, memory cards, cleaning kits |
Customization Options
- Board: 300-400gsm CCNB (standard, cost-effective). Upgrade to SBS (solid bleached sulfate) for a pure white interior and superior print surface. FSC-certified board available for all grades
- Closure: Standard straight tuck end (top and bottom tuck). Optional auto-lock bottom for faster assembly in fulfillment centers. Tuck-top with dust flaps for added security
- Printing: CMYK offset at 200 LPI on KBA 1050. Pantone spot colors for brand-color precision. Cold foil for metallic accents at a lower cost than hot foil
- Coatings: Matte aqueous coating (standard, scuff-resistant). Spot UV varnish on logo/product areas for tactile contrast. Soft-touch velvet coating for premium electronics brands. Gloss aqueous for high-impact shelf appeal
- Interior: Die-cut chipboard insert to secure product and accessories. PET/PVC window for product visibility (die-cut and film-laminated). EVA foam insert for heavy or fragile items
- Add-ons: Euro hang tab for pegboard retail display. Tear-away panel for tamper evidence. QR code printing on interior for digital registration/warranty
- Sizing: Standard electronics formats: 80×60×25mm (earbuds), 150×80×30mm (cables), 100×70×40mm (power banks), 180×100×20mm (phone cases)
Production Specifications
| Specification | Detail |
|---|
| Board | 350gsm CCNB/duplex, 300-400gsm range |
| Board Caliper | 0.45-0.55mm (350gsm CCNB) |
| Print Resolution | 200 LPI offset, KBA Rapida 105 |
| Coatings | Inline matte aqueous + selective Spot UV (Heidelberg 7+1 UV) |
| Die-Cutting | Flatbed die-cutter, ±0.3mm tolerance |
| Gluing | Side-seam water-based PVA, 5-8mm glue flap |
| Color Consistency | X-Rite eXact, ΔE ≤ 2.0 vs. master |
| Factory | 18,000 sqm dual-factory, 350+ skilled workers |
| Daily Output | 1.7 million boxes |
| MOQ | 1,000-2,000 units per design |
| Lead Time | 10-14 days production + shipping |
| Certifications | ISO 9001:2015, FSC Chain-of-Custody, Sedex SMETA |
Quality Assurance
| Test | Method / Standard | Acceptance Criteria |
|---|
| Board Grammage | Digital scale, 100% batch | Spec ±5% |
| Print Registration | Heidelberg Prinect inline | ±0.15mm color-to-color |
| Spot UV Alignment | Visual + loupe, 1 per 500 | ±0.5mm registration to print |
| Coating Adhesion | Cross-hatch tape test, ASTM D3359 | 5B — no coating removal |
| Die-Cut Accuracy | Digital caliper, 1 per 200 | ±0.3mm dimensional |
| Glue Seam Strength | Manual pull test, 1 per 500 | Fiber tear, no adhesive failure |
| AQL Sampling | ISO 2859-1 Level II | AQL 2.5 (major), AQL 1.0 (minor) |
Why Choose Bincai
Electronics accessory packaging demands precision — a 0.5mm misalignment in die-cutting means a phone case doesn’t fit, and a Spot UV registration error betrays the quality promise of the product inside. Bincai’s KBA-to-Heidelberg inline workflow eliminates these risks: the KBA 1050 prints at 200 LPI, then the Heidelberg 7+1 UV applies coating and Spot UV in a single pass without re-registration, maintaining ±0.15mm color accuracy throughout. For DTC electronics brands scaling from online-only to retail shelves, the Euro hang tab option plus FSC certification provides instant shelf-ready compliance across North American and European retail channels.
Factory Facts: Founded 2003 | 22 years | 18,000 sqm (10,000 + 8,000 smart factory) | 1.7M boxes/day | KBA 1050 + Heidelberg 7+1 UV | ISO 9001 & FSC | Foshan, Guangdong, China
