Kraft Eco-Friendly Tuck-Top Mailer Box with Soy Ink Print
ISO 9001FSCMOQ 500-1000π Free Sample
Diamond Member
Audited Supplier
Quick Specs
| Category | Kraft eco boxes |
|---|---|
| Material | Kraft Board / Recycled Kraft / Soy-Based Ink |
| MOQ | 500-1000 units |
| Price | $0.35-1.80/pc |
| Certification | ISO 9001, FSC |
| Sample | 3-5 days |
| Production | 7-15 days |
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Product Overview
This eco-friendly kraft tuck-top mailer box by Guangdong Bincai Color Printing delivers sustainable packaging without compromising on print quality or structural integrity. Made from 100% recycled kraft board (350gsmβ400gsm) with FSC Chain-of-Custody certification, it features soy-based ink printing for a fully biodegradable packaging solution. The tuck-top closure eliminates the need for tapes or adhesives, simplifying both assembly and recycling. With 22 years of manufacturing expertise and daily output of 1.7 million boxes from our 18,000 sqm facility, Bincai serves e-commerce brands, subscription box companies, and retailers seeking verified sustainable packaging. Unlike many “eco” boxes that sacrifice print vibrancy, Bincai’s Heidelberg 7+1 UV press with soy-based inks achieves rich, solid colors on kraft surfaces β so your brand doesn’t look washed out. The natural kraft aesthetic resonates with today’s conscious consumers, communicating environmental responsibility before they even open the box. Available with optional FSC, REACH, and RoHS documentation for your compliance records.
Features
- 100% Recycled Kraft: Post-consumer recycled content, fully biodegradable and curbside recyclable
- Soy-Based Ink: Low-VOC, food-safe formulation; prints solid colors on kraft with Heidelberg 7+1 UV
- FSC Certified: Chain-of-Custody certification ensures responsible forest sourcing
- Tuck-Top Closure: Self-locking design β no tapes, glues, or additional closures needed
- Board Grades: 350gsm, 380gsm, and 400gsm kraft board; lighter for inserts, heavier for structural boxes
- Print Quality: 1-2 color flexo or CMYK offset on kraft surface
- Size Range: 100Γ80Γ50mm to 450Γ350Γ200mm
- Custom Options: Die-cut windows, tear strips, custom inserts, interior printing
- Industry Applications: E-commerce shipping, subscription boxes, organic food, cosmetics, apparel
- Material Certifications: FSC, REACH, RoHS compliant
Applications
| Industry | Application | Key Feature |
|---|---|---|
| E-Commerce | Direct-to-consumer shipping boxes, Amazon FBA packaging, Shopify merchant fulfillment | Lightweight = lower shipping costs; self-locking = 3-second assembly |
| Subscription Boxes | Monthly beauty boxes, snack subscriptions, book clubs, artisan craft boxes | Custom interior printing creates branded unboxing experience |
| Organic Food | Tea, coffee, granola, chocolate, supplement packaging | Soy-based ink is food-safe β no chemical migration risk |
| Natural Cosmetics | Organic skincare, soap gift sets, essential oil kits | Kraft aesthetic aligns with clean beauty brand values |
| Sustainable Fashion | Apparel mailers, accessory boxes, jewelry by eco-conscious brands | FSC certification supports brand sustainability claims |
| Gift & Hampers | Corporate eco-gifts, holiday hampers, baby shower favors | Natural look appeals to environmentally-conscious gift recipients |
| Retail | In-store product packaging for brands with green positioning | Die-cut window option allows product visibility while maintaining eco aesthetic |
| Industrial Parts | Hardware, electronics accessories, replacement parts | 400gsm heavy kraft provides robust protection without plastic |
Customization Options
| Option | Available Choices | Details |
|---|---|---|
| Board Grade | 350gsm (light products), 380gsm (standard), 400gsm (heavy/stackable) | Choose based on product weight and shipping method |
| Kraft Shade | Natural brown, bleached white kraft, black kraft, grey kraft | Natural brown most popular β lowest environmental impact |
| Printing | 1-color flexo, 2-color flexo, CMYK offset (Heidelberg 7+1 UV) | Offset for photo-quality; flexo for logos and text |
| Ink Type | Soy-based (standard), water-based flexo, vegetable-based | All low-VOC, biodegradable formulations |
| Finish | Natural matte (no coating), aqueous coating (slight sheen), biodegradable varnish | No plastic lamination β maintains biodegradability |
| Window | Die-cut window with PLA film (compostable), PET film (recyclable), or no film | PLA = fully biodegradable; PET = clearer, longer shelf life |
| Tear Strip | Perforated tear strip for easy opening, integrated tear tape | Tear strip eliminates need for box cutters β improved customer experience |
| Interior Printing | Unprinted (standard), single-color pattern, full CMYK artwork | Branded interior = premium unboxing on a budget |
| Inserts | Kraft card dividers, molded pulp tray, corrugated partitions | All insert materials also recyclable/biodegradable |
| Closure | Tuck-top (standard), tuck-top + tamper-evident seal, tuck-top + string tie | Tamper-evident seal adds security for food/cosmetics |
| Size | 100Γ80Γ50mm to 450Γ350Γ200mm | Larger sizes use 400gsm for structural integrity |
| MOQ | 500 units (standard), 1000+ (custom insert + window) | Tiered pricing at 1000/3000/5000/10000 |
Production Specifications
| Component | Specification |
|---|---|
| Kraft Board | 100% post-consumer recycled kraft, FSC Recycled Credit certified, 350β400gsm |
| Board Composition | Virgin kraft liner (outer) + recycled medium (inner) β smooth printing surface on exterior |
| Ink | Soy-based offset ink β β€5% VOC content, ASTM D6886 compliant, heavy-metal free |
| Printing | Heidelberg 7+1 UV (CMYK + spot) or flexo (1β2 color); inline aqueous coating optional |
| Color on Kraft | Heidelberg achieves ΞE β€3.0 on kraft substrate β significantly better than standard flexo |
| Die-Cutting | Bobst SP 102 BMA flatbed β Β±0.2mm accuracy on kraft, clean fold lines |
| Creasing | Rotary creasing β prevents kraft fiber cracking at fold lines |
| Gluing | Water-based PVA adhesive (side seam only) β biodegradable, solvent-free |
| Closure | Tuck-top with locking tab β no additional adhesive required for closure |
| Assembly | Flat-packed for shipping β customer folds and tucks in seconds |
| Daily Output | Up to 350,000 kraft mailers per shift |
| Lead Time | 8β12 days new artwork; 5β8 days repeat; 3β5 days rush |
Quality Assurance
| Test | Standard | Specification |
|---|---|---|
| Board Burst Strength | ISO 2759 | β₯1100 kPa (350gsm), β₯1400 kPa (400gsm) β resists puncture in transit |
| Edge Crush Test | ISO 3037 | β₯6.0 kN/m β maintains structural integrity when stacked |
| Cobb Water Absorption | ISO 535 | β€35 g/mΒ² (60s) β adequate moisture resistance for shipping |
| Fold Line Integrity | Internal | 10 open/close cycles β no fiber cracking along crease lines |
| Ink Rub Resistance | ISO 28360 | β₯Grade 3 dry rub β logo remains legible after shipping abrasion |
| Ink Migration | EU 10/2011 | Below detection limit for food contact β safe for indirect food packaging |
| Tuck-Top Lock | Internal | 50 insertion/removal cycles β locking tab remains functional |
| Drop Test | ISTA 1A | 10 drops from 760mm with product weight β no burst, closure holds |
| Stacking Compression | ISO 12048 | β₯400N top-load (350gsm box) β survives warehouse pallet stacking |
| Moisture Cycle | Internal | 48hr 30Β°C/85%RH β β€5% dimension change, no delamination |
| Biodegradability | ASTM D5338 | β₯90% biodegradation within 180 days under industrial composting |
| Recyclability | EN 13430 | Fully repulpable β accepted in standard curbside recycling streams |
| Visual Inspection | AQL 2.5 Level II | ISO 2859-1 sampling; color consistency, print registration, structural integrity |
Why Choose Bincai
22 years Β· ISO 9001 Β· FSC Certified Β· 1.7M boxes/day Β· 200+ global brands
| π Experience | 22 years since 2003 |
| π Factory | 18,000mΒ² (10,000+8,000 smart factory) with KBA & Heidelberg presses |
| β Quality | ISO 9001:2015 certified |
| πΏ Eco | FSC certified sustainable materials |
| π Capacity | 1.7M+ color boxes + 220K+ gift boxes daily |
| π¨ Custom | Any size, color, finish, insert |
| π¦ MOQ | 500-1000 pcs, trial orders accepted |
| π Sample | Free pre-production sample (freight collect) |
| π Shipping | Worldwide DHL/FedEx/UPS/Sea |
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