Development Zone, Hefei City, Anhui, China
Stack of clear plastic poly bags with black adhesive strips
White poly mailing bag with gray self-seal adhesive flap on a plain white backgroundThree white self-seal poly mailer bags in ascending sizes on a clean white backgroundWhite plastic courier mailer bags with red seal strip, one rolled and one flat showing black interior
Plastic BagPharmaceutical IndustryFood Industry

Courier Mailing Bag For Express Packaging

Courier mailing bag is a self-sealing poly mailer made from PE film with a strong adhesive strip that closes securely without tape. It is designed for fast, secure shipping of non-fragile items like clothing, accessories, and small retail goods. The bag stays sealed during transit, preventing tampering and keeping contents dry in wet conditions.

  • Self-adhesive seal closes tightly without tape, reducing packing time and material use
  • Strong adhesive maintains stickiness in hot or cold weather, preventing tampering
  • Waterproof and tear-proof construction protects contents in rainy or foggy conditions
  • Lightweight design reduces dimensional weight charges on courier and express shipments

Include the carton size and the monthly volume and the reply will contain a format recommendation, not just a price.

Why It Works

Key Benefits

  • Self-adhesive seal closes tightly without tape, reducing packing time and material use
  • Strong adhesive maintains stickiness in hot or cold weather, preventing tampering
  • Waterproof and tear-proof construction protects contents in rainy or foggy conditions
  • Lightweight design reduces dimensional weight charges on courier and express shipments
  • Available in multiple colours to match brand identity or order sorting needs
  • No extra packaging materials needed—ideal for small to mid-sized business shipping
Application Scenarios

Where It Is Used

  • Shipping hoodies, sweatshirts, and casual clothing in e-commerce fulfilment
  • Sending accessories, small electronics, or beauty products via express courier
  • Fulfilling online orders with consistent, branded packaging across multiple SKUs
  • Sending promotional items or samples to customers without over-packaging
  • Using as a secondary bag inside larger cartons for added protection and moisture resistance
Buyer Profile

Who It Is For

  • E-commerce sellers shipping clothing and accessories in small to medium volumes
  • Small to mid-sized businesses needing fast, low-cost packaging for daily orders
  • Third-party logistics providers handling express parcel shipments with tight timelines
  • Retailers sending out branded promotional kits or product samples
  • Warehouses that want to reduce tape use and speed up packing lines
Problems Solved

Problems It Solves

  • Manual sealing with tape slows down packing lines and increases material cost
  • Weak seals on mailers allow moisture and tampering during transit
  • Non-waterproof bags fail in rainy or humid conditions, damaging contents
  • Lack of brand consistency in packaging reduces customer perception of professionalism
  • Over-packaging with extra materials increases freight cost and waste
Technical Detail

Technical Features

  • Self-adhesive seal with four-season adhesive that resists temperature extremes
  • PE film thickness between 100 and 130 microns for tear and puncture resistance
  • Reinforced edge sealing prevents splitting during handling and transit
  • Waterproof and tear-proof construction maintains integrity in wet or rough conditions
  • Available in white, pink, black, green, yellow, and blue for visual differentiation
  • No additional tape or sealing tools required—ready to use straight from the pack
Specifications

Published Data for Courier Mailing Bag For Express Packaging

Only values published on our own datasheets appear here. If a figure you need is missing, ask for it and we will confirm it in writing.

ProductCourier mailing bag for express packaging
MaterialPE film
Thickness100 ~ 130 mic
Sealing TypeSelf-adhesive seal
Colour OptionsWhite, Pink, Black, Green, Yellow, Blue
FeatureStrong adhesive, tear-proof, waterproof, perfect printing
Use CaseShipping non-fragile items like clothing, accessories, small retail goods
Materials

Materials

  • PE film with no recycled regrind in the seal layer for consistent adhesion
  • Adhesive formulated for year-round performance in hot and cold environments
  • Reinforced edge construction to prevent splitting under stress
Manufacturing Process

How It Is Made

1

PE resin fed into film extrusion line using 100% pure virgin material

2

Film cast and cooled to form a uniform sheet with consistent thickness

3

Adhesive applied to the top edge of the film in a controlled coating process

4

Cutting and slitting to the required bag size and shape

5

Final inspection of adhesive strength and seal integrity before packing

Quality Control

How It Is Checked

1

Incoming PE resin checked as 100% pure virgin material before extrusion

2

Adhesive bond strength tested at multiple temperatures to confirm year-round performance

3

Sample bags sealed and subjected to water spray and tear tests

4

Seal integrity verified on every batch before packing

5

Final cartons inspected at container loading against the packing list

Customisation

Customisation Options

  • Custom colours to match brand or order sorting needs
  • Printed logo or text on the bag surface using in-house film printing machine
  • Adjustable size and thickness within the 100–130 mic range for specific load requirements
  • Custom adhesive formulation available on request for extreme climates
Comparison

How It Compares With the Alternatives

Where another material is the better answer we say so, because a returned shipment costs more than a lost order.

Tape-sealed mailersSelf-adhesive closure is faster and more consistent than tape, reducing packing time and error rate
Paper mailersPE mailers are waterproof and tear-resistant, while paper fails in wet conditions
Standard plastic bagsReinforced edges and strong adhesive prevent splitting and tampering, unlike standard bags
Poly mailers with weak adhesiveFour-season adhesive maintains seal in heat and cold, reducing failure during transit
Use Guide

How to Use It

1

Open the bag and place your item inside, ensuring it fits without stretching the film

2

Close the self-adhesive flap by pressing it firmly along the entire edge

3

Check that the seal is fully closed and has no gaps or lifting edges

4

Apply a shipping label to the front of the bag, avoiding the sealed edge

5

Send via express courier—no additional packaging needed for non-fragile items

Product Photography

Courier Mailing Bag For Express Packaging in Detail

Photographs of the actual product as supplied, not renders.

Buyer Questions

Courier Mailing Bag For Express Packaging Questions

What is the minimum order quantity for courier mailing bags

Order quantity depends on size, thickness, and colour. Send your required dimensions and monthly volume via WhatsApp and we will confirm the minimum for that specification.

Can you print our logo on the bags

Yes. We print on our own film printing machine, so logo bags can be included in the same order as plain ones. Send artwork and the width you need.

Are the bags waterproof

Yes, the PE film and reinforced edge sealing make the bags waterproof and tear-proof, even in wet or foggy conditions.

Can the adhesive fail in extreme heat or cold

No. The adhesive is formulated for four-season performance and maintains strong stickiness in both hot and cold environments.

Quote Courier Mailing Bag For Express Packaging for Your Next Shipment

Tell us the quantity, the destination port and the specification you need. We will confirm what runs, what is stock and what fits in a container.