Open-Top Compostable Mailer Bags Manufacturer
No Adhesive · Heat & Tape Sealing · B2B Bulk Supply
ORIZON is a China-based open-top compostable mailer bags manufacturer, supplying no-adhesive compostable mailer bags for professional packaging, fulfillment, and logistics systems.
These open-ended compostable mailers are designed for manual or automated sealing,
including heat sealing and tape sealing, and are supplied exclusively for B2B wholesale, OEM, and private label programs.
Retail and consumer sales are not supported.
What Are Open-Top Compostable Mailer Bags?
Open-top compostable mailer bags—also referred to as open-ended or no-adhesive compostable mailers—are shipping bags supplied without pre-applied adhesive strips or integrated closures.
Unlike self-adhesive mailers, these bags are designed to be sealed downstream using:
- Heat sealing equipment
- Tape sealing systems
- Custom closure or automated packing lines
They are widely specified in B2B packaging and fulfillment environments where sealing method, timing, or equipment varies by project.
Why Choose Open-Top Mailer Bags for B2B Packaging Systems?
Open-top compostable mailer bags are selected when:
- Packaging workflows require custom or delayed sealing
- Heat sealers or tape sealers are already integrated into packing lines
- One bag format must support multiple sealing methods
- Packaging distributors supply bags to different downstream users
Compared with self-adhesive compostable mailer bags, open-top formats offer greater flexibility and process control in industrial and fulfillment-center operations.
Materials & Compostable Certifications
All open-top compostable mailer bags supplied by ORIZON are manufactured using certified compostable film formulations based on PLA / PBAT blends.
Available certifications include:
- EN 13432 – Industrial compostability (EU & UK)
- ASTM D6400 / BPI – Industrial compostability (United States)
- AS4736 – Industrial compostability (Australia)
- OK Compost INDUSTRIAL (upon request)
Certification acceptance varies by region and local waste authority.
Buyers should confirm applicable requirements prior to procurement.
Sealing Compatibility & Technical Considerations (B2B)
In professional procurement, open-top compostable mailer bags are specified based on sealing compatibility, not consumer convenience.
Buyers typically evaluate:
- Intended sealing method (heat seal or tape seal)
- Film thickness and sealability window
- Seal width and edge structure
- Compatibility with impulse or continuous band sealers
- Seal strength requirements for transport
- Storage stability under standard warehouse conditions
Sealing parameters can be adjusted through material selection and bag construction
to suit different packing systems and logistics requirements.
Typical Sizes & Bag Formats
Open-top compostable mailer bags are supplied in standardized and custom dimensions
for professional packaging systems.
Common configurations include:
- Flat open-top compostable mailer bags
- Gusseted open-ended mailer formats
- Custom width × length combinations
- Thickness ranges adjusted for sealing method
These products are designed for bulk handling and automated workflows,
not for retail mailer sales.
B2B Procurement & Distribution Scenarios
These open-top compostable mailer bags are supplied for professional procurement and distribution programs, including:
- Packaging distributors and wholesale supply chains
- OEM and private label programs for logistics and packaging brands
- Fulfillment centers using heat-seal or tape-seal packing lines
- Importers serving institutional and commercial packaging buyers
Products in this category are intended for commercial shipping systems
and are not designed for consumer retail packaging.
Bulk Supply, Packaging & Custom Options
Open-top compostable mailer bags are supplied in bulk, distributor-ready formats.
Customization options may include:
- Custom bag dimensions and film thickness
- Seal-edge reinforcement for heat sealing
- Custom printing (logos, branding, compliance marks)
- Inner packing format, carton configuration, and palletization
MOQ, lead time, and pricing depend on size, material specification, and customization scope.
Information Commonly Required for Quotation
To provide fast and accurate quotations, buyers typically specify:
- Destination market / country
- Bag size (width × length)
- Film thickness range
- Intended sealing method (heat seal or tape seal)
- Printing requirements
- Inner packing and carton format
- Estimated monthly volume
- Target delivery terms (FOB / CIF / DDP)
Why Choose ORIZON as Your Open-Top Mailer Bag Manufacturer
- Direct Manufacturer with stable production capacity
- Certified Compostable Materials for regulated markets
- OEM & Private Label Support for long-term B2B programs
- Global B2B Experience serving distributors and importers worldwide
Product Categories
FAQ
No. Open-top mailer bags are supplied without adhesive and are designed for heat sealing or tape sealing.
Yes. Open-top formats are commonly used with impulse sealers, continuous band sealers, and tape-based automated systems.
Yes. OEM sizing, printing, and packaging formats are available for qualified B2B orders.
MOQ depends on bag size, thickness, and customization. Orders typically start from pallet or container-level quantities.
Request Wholesale Specifications
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