Window Die-Cut Folding Carton for Tea Sachet Display Retail

Die-cut window folding carton with clear PET film for tea sachet display at retail by Guangdong Bincai Color Printing Co., Ltd. — a Diamond Member on Made-in-China.com with 22 years of manufacturing excellence (founded 2003). The precision die-cut window with optically clear PET film allows customers to see the tea sachets inside, building trust and conveying product quality at the point of sale. The food-grade SBS board and adhesive meet FDA and EU food contact standards. Produced on KBA 1050 4-color and Heidelberg 7+1 UV presses across our 18,000 sqm facility (10,000+8,000 smart factory) (2025 expansion). Daily output: 1.7 million color boxes + 220,000+ gift boxes.

Applications

• Premium loose-leaf tea and tea sachet retail packaging
• Herbal infusion, wellness tea, and functional beverage cartons
• Gourmet food packaging: dried fruit, nuts, chocolate, confectionery
• Specialty coffee single-serve pod retail cartons
• Spice and seasoning blend retail boxes
• Gift set packaging combining multiple tea varieties
• Hotel amenity and hospitality tea packaging
• Farmers’ market and artisanal food producer packaging

Customization Options

• Window shapes: rectangle, oval, circle, teardrop, heart, leaf, or fully custom die-cut
• Clear PET film: standard 0.2mm, anti-fog coated, or UV-blocking (protects contents from light)
• SBS board: 250gsm (lightweight) to 400gsm (premium rigidity)
• Full-color CMYK offset printing with aqueous or UV coating
• Hot foil stamping accents on brand logo or product name area
• Soft-touch matte lamination for premium tactile experience
• Tuck-top, auto-lock bottom, or crash-lock bottom construction
• Interior printing: brewing instructions, brand story, or QR code
• Custom sizes: 60×40×150mm to 200×100×300mm
• Tamper-evident tear strip or perforated opening for retail security

Production Specifications

• KBA 1050 4-color offset press for high-speed precision printing
• Heidelberg 7+1 UV press for specialty coatings and UV spot varnish
• Bobst Novacut 106-E flatbed die-cutter for precision window cutting
• Bobst Masterfold 110 folder-gluer with inline PET window patching
• SBS board 250–400gsm with brightness ≥92% for vivid color reproduction
• PET film 0.2mm clarity-grade with ≥90% light transmission
• Food-grade adhesive for PET-to-board bonding (FDA 21 CFR 175.105 compliant)
• ISO 9001:2015 quality management throughout production
• FSC-certified paper sourcing for sustainable packaging

Quality Details

• Window alignment tolerance: ±0.5mm relative to printed graphics
• PET film adhesion: tested at 50°C and 90% RH for 72 hours with zero delamination
• Board scoring and folding precision: all creases ±0.3mm for consistent box formation
• Color consistency: ΔE <2.0 across full production run
• 100% inspection on window clarity, film adhesion, and print registration
• Free pre-production samples with 5–7 day turnaround
• MOQ 1,000–3,000 units depending on customization complexity
• Ships flat for efficient warehousing — 2,000–5,000 boxes per carton

Factory

• 22 years of manufacturing excellence since 2003
• 18,000 sqm factory (10,000+8,000 smart factory)
• 80+ skilled employees across design, prepress, printing, and finishing
• KBA 1050 4-color + Heidelberg 7+1 UV presses
• Bobst inline folder-gluer with automatic window patching
• Daily capacity: 1.7 million color boxes + 220,000+ gift boxes
• High-Tech Enterprise certified; ISO 9001:2015 & FSC certified

FAQ

Q: Is this carton food-safe for direct contact with tea sachets? A: Yes — the SBS board, water-based printing inks, aqueous coating, and PET film adhesive are all FDA 21 CFR compliant for indirect food contact (packaging that contains individually wrapped food items). For direct food contact (unwrapped tea leaves), we can upgrade to a food-grade PE-coated interior liner that provides an additional barrier layer. All materials have full traceability documentation for your food safety audit requirements.

Q: Does the PET window fog up in refrigerated display cases? A: Our standard PET film may develop condensation fogging in refrigerated environments (below 5°C). For cold-chain or refrigerated retail display, we recommend upgrading to our anti-fog PET film, which uses a hydrophilic coating that spreads moisture into a transparent film instead of forming visible droplets. Anti-fog PET adds approximately $0.02–0.04 per unit and is validated down to -2°C ambient temperature.

Q: What window shape works best for tea sachet display? A: For tea sachet display, we recommend the leaf-shaped or elongated oval window — it provides the best balance of product visibility and structural integrity. The leaf shape is particularly effective for tea branding as it communicates the natural/organic positioning of the product. Rectangular windows maximize visibility but leave less printable surface for branding and regulatory information. We can produce samples of 2–3 window shapes for comparison before committing to mass production.

Q: Can this carton design be adapted for other food products besides tea? A: Absolutely — the same window folding carton construction works for: chocolate truffle boxes, macaron packaging, dried fruit and nut cartons, energy bar multipacks, spice blend boxes, coffee pod cartons, and gourmet cookie packaging. The only adjustments needed are the internal dimensions, window shape/size, and potentially the board caliper (thicker for heavier products). We maintain a library of 50+ standard carton styles that can be adapted to your product.