Our custom PET/PE quad seal bags are designed to deliver exceptional performance for dry food and powder packaging. The clear PET exterior offers high transparency to showcase your product, while the PE inner layer provides a strong, heat-sealable barrier that preserves freshness and prevents moisture and oxygen from affecting your goods. The quad-seal construction ensures a stable, upright base, perfect for retail shelves.
Whether you’re packaging coffee beans, tea, spices, or powdered goods, these bags combine durability, clarity, and brand customization to meet your needs. As a leading flexible packaging manufacturer with 8+ years of experience, we tailor every detail to your specifications.
- High-Clarity PET Exterior: Transparent PET material allows full visibility of your product, enhancing shelf appeal and customer trust, as seen in the vibrant printed coffee bag example.
- PE Barrier Layer: Food-safe PE inner layer offers excellent heat-seal strength and standard moisture/oxygen barrier protection, ideal for dry food and powder products.
- Quad-Seal Construction: Four-side seal design creates a stable, gusseted base for upright display, maximizing retail space efficiency.
- Customizable Printing: Supports up to 11-color gravure printing for sharp, vibrant logos, text, and full-wrap designs—perfect for brand differentiation.
- Functional Add-Ons: Optional tear notches, degassing valves (for coffee), and resealable zippers to meet specific product needs.
Customize every aspect of your quad seal bags to match your product and brand requirements with our detailed specification options:
| Item |
Details |
| Bag Type |
Quad Seal Bag (PET/PE Laminated) |
| Capacity |
Custom (250g, 500g, 1kg, or tailored to your product volume) |
| Material |
PET (High-Clarity) + PE (Food-Grade, Heat-Sealable) |
| Dimensions |
Custom (Width × Height × Gusset, based on your sample or design) |
| Thickness |
Custom (80–140μm; adjusted based on product weight and barrier needs) |
| Printing |
Up to 11-color Gravure Printing (CMYK + Pantone; custom logos, texts, and patterns) |
| Custom Functions |
Tear Notch, Degassing Valve (for coffee), Resealable Zipper, Heat Sealable, Moisture-Proof |
| MOQ |
5,000pcs (bulk orders qualify for preferential pricing; contact us for small-batch options) |
| Lead Time |
Production: 12–17 working days; Samples: 3–5 working days |
| Certifications |
FDA, SGS, ISO9001, EU Food-Grade Compliance |
| Packaging |
Export standard cartons with protective wrapping (customized packaging available on request) |
| Payment Terms |
T/T (30% deposit, 70% against BL copy), L/C, Alibaba Trade Assurance |
| Shipping |
By sea, air, or express (FOB/CIF/DDP terms available as per your requirements) |

Our custom PET/PE quad seal bags are versatile for various industries, making them a reliable choice for brands prioritizing visibility and freshness:
- Coffee & Tea: Ideal for whole beans, ground coffee, and loose-leaf tea, with optional degassing valves for freshly roasted products.
- Dry Food & Spices: Perfect for grains, nuts, spices, and dried fruits, protecting against moisture and contaminants.
- Powder Products: Suitable for protein powder, baking mixes, and other powdered goods requiring secure, leak-proof packaging.
- Pet Food: Durable packaging for dry pet food and treats, with clear visibility to showcase product quality.

As a professional flexible packaging manufacturer with annual sales of 80–100 million RMB, we deliver reliable, high-quality solutions tailored to your brand. Our core advantages include:
- Advanced Printing Technology: 11-color gravure printing capabilities (rare in the industry) ensure sharp, vibrant designs with precise color matching.
- Comprehensive Production Capacity: 55+ specialized machines (quad seal, stand-up, flat bottom, etc.) support diverse packaging needs from small batches to large orders.
- Strict Quality Control: 6 quality inspection machines and full compliance with food safety standards guarantee every bag meets global quality requirements.
-
Custom Solutions: Our 8-person design team offers free design support to turn your packaging vision into reality, from concept to final production.
-
Industry Experience: 8+ years serving food, beverage, pet food, and industrial sectors, with proven expertise in solving packaging challenges for brands worldwide.

We follow a rigorous, step-by-step production process to ensure every custom quad seal bag meets our high standards for quality and consistency:
- Consultation & Design: Discuss your requirements with our team, then receive a free custom design mockup for approval.
- Material Procurement: Source food-grade PET and PE materials from certified suppliers.
- Printing: Use 11-color gravure printing to apply your brand design with precision and clarity.
- Lamination & Slitting: Laminate materials for barrier protection, then slit to custom sizes.
- Forming & Sealing: Fabricate bags with quad seals and add custom functions (valves, tear notches).
- Quality Inspection: Check every bag for printing accuracy, seal integrity, and material defects.
- Packaging & Shipping: Package bags in export-standard cartons and ship via your preferred logistics method.

Get answers to common questions about our custom PET/PE quad seal bags:
Q1: What is the MOQ for custom quad seal bags?
A: For custom gravure-printed bags, the MOQ is 5,000pcs per design. For small-batch printing on stock bags, the MOQ is 1,000pcs, and unprinted stock bags also start at 1,000pcs. Contact us for flexible solutions based on your order size.
Q2: Can I get free samples to check the quality?
A: Yes! We offer free quality samples from our stock—you only pay for shipping. Custom printed samples require a $150 design fee, which is refundable if your order total reaches $200,000.
Q3: Do you provide free design services?
A: Absolutely! Our 8-person design team offers free design support to bring your packaging vision to life. Just share your draft files (AI, PDF, PSD, etc.), and we’ll create professional artwork for your approval.
Q4: Are these bags suitable for food contact?
A: Yes! All our PET/PE quad seal bags use food-grade materials that meet FDA, SGS, and EU food safety standards, making them safe for direct contact with dry food, coffee, and powder products.
Q5: How long does production take?
A: Production lead time is 12–17 working days after design approval, and sample lead time is 3–5 working days. Lead times may vary based on order volume and customization complexity.

For more information about our full range of flexible packaging solutions, visit our external site at ruihongpackaging.cn.