The Grey Mailing Bag Manufacturer!

 

We are a professional manufacturing factory integrating the R&D, production, sales, and wholesale of plastic packaging bags. For many years, we have focused on providing high-quality, customizable, and reliably delivered plastic packaging solutions to global customers. Our company adheres to the core philosophy of "quality first, customer foremost, and continuous innovation," serving various fields including food packaging, daily necessities packaging, logistics and transportation, and industrial protection. We have consistently dedicated ourselves to the plastic packaging industry, evolving from early single-bag type production to a comprehensive packaging bag manufacturing enterprise offering multiple categories, materials, and processes. Through continuous introduction of advanced equipment, optimization of production processes, and expansion into international markets, our products are now exported to numerous countries and regions in North America, Europe, Oceania, Southeast Asia, and the Middle East, establishing long-term and stable cooperative relationships with many brands, wholesalers, and e-commerce customers. We support comprehensive customization of size, thickness, color, printing, sealing method, and packaging method to meet the needs of different application scenarios.

 

 
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Why choose us

Extensive Experience

Our company has many years of professional experience. Our factory is equipped with advanced production facilities and a comprehensive management system. We are capable of large-scale production and rapid delivery, providing a stable and reliable partnership.

 

OEM and ODM Services

The company provides OEM (original equipment manufacturing) and ODM (original design manufacturing) services to meet the diverse needs of different customers. Through these two service models, the company can not only provide customers with high-quality packaging solutions, but also help customers in the market stand out.

Quality Assurance

All our products are made from high-quality raw materials and undergo rigorous quality testing and international certifications to ensure they are safe, durable, and environmentally friendly.

Our Certificate

We ISO14001, ISO9001, SGS-REACH, SGS-LDPE polyethylene bag (30% recycled material), USB TEXT5873-GRS-2022-01

 

 

Product model

Grey Mailer Plastic Shipping

Material

Poly,HDPE or LDPE or Customized

Size/Color

Customized size,follow client's ideas or design.

Thickness

35-120 micron or customized

Shape

1.Various shape available.

2.Custom shape/design accepted.

Usage

Shopping / Carrier / Packaging / Promotional

OEM

Yes

Function

Strong film with strong side sealing and strong tape. This kind of bag is used for courier, express, and mail services.

MOQ

20,000pcs

Sealing type

Destructive glue

Engineering

Using high pressure plastic machine speed vertical plastic film bag making machine, computer heat cutting, spraying and courier bags

Volume

Packaging for 100g.500g.1kg etc

Additional service

Professional guidance in material or design adjustment which help you get the most ideal cost effective solution.

 

Benefits of Mailing Bags
 
Waterproof Grey Mail Bag

Protection: These bags provide a protective layer against dirt, dust, moisture, and other external factors that could damage the contents during transit. They are designed to be durable and resistant to tearing or puncturing.


Lightweight: Compared to traditional cardboard boxes, grey mail bags are lightweight, which can result in lower shipping costs. This makes them a cost-effective option for shipping items.


Space-saving: They are flexible and can be compressed, which means they take up less storage space when not in use. This is especially beneficial for businesses with limited storage space.


Customizable: Also can be customized with branding, logos, or promotional messages, making them a great marketing tool. This helps businesses to promote their brand and create a professional image.


Versatility: They can be used for shipping a wide range of items, from small to large, flat to bulky. This makes them a versatile packaging solution for various shipping needs.

 

Uses of Mailing Bags
Shipping Bags Express Bags Mailing Bags
large poly bags for shipping
compostable poly mailers
plastic postage bags

E-commerce and Online Retail: The primary use of mailing bags is in the e-commerce sector. Online retailers rely heavily on these bags to ship and deliver their products to customers efficiently and safely. Wholesale packing bags are particularly suited for shipping clothing, accessories, books, and other non-delicate items. Their lightweight and durable nature makes them cost-effective while providing fair protection from the inside.


Document & Paperwork Mailing: Wholesale plastic bags are ideal for sending important documents and paperwork. They provide a secure and weather-resistant option for mailing contracts, reports, brochures, and other essential papers. Some mailing bags come with more padding or unbendable inserts to prevent bending and ensure that the document arrives in untouched condition.


Marketing & Promotional Material: Many businesses often use mailing bags to distribute marketing and promotional materials. Whether you are sending out brochures, flyers, samples, or promotional gifts, mailing bags offer an affordable and efficient way to reach customers. Their custom packaging bags allow companies to brand the bags with their logos and promotional messages, elevating brand visibility.


Gifts & Personal Items: Packaging bags are frequently used by individuals to send gifts and personal items to friends and family. The variety of sizes and types available makes it easy to find the right mailing bag for different items, from small trinkles to larger clothing items.


Confidential & Sensitive Items: For confidential and sensitive items that require an extra level of secrecy, such as legal documents or sensitive content, custom mailing bags with tamper-evident seals are a great choice. These seals offer a clear indication if the bag has been opened, making sure the contents remain secure during transit.


Return Merchandise: Packaging bags for shipping are also used for returning merchandise, providing convenient solutions for customers to send back products. Some e-commerce businesses include a pre-addressed mailing bag in the original shipment, making the return process seamless for customers and businesses.


Environmental Considerations: With growing environmental awareness, some shipping bags for small business are now made from recyclable and biodegradable materials.

 

Production Procedure
 

Raw material selection
We rigorously select high-quality raw materials such as PE, PP, PA, and PLA to ensure our products possess excellent transparency, toughness, and environmental performance. All raw materials meet food-grade or environmental standards, providing customers with safe and reliable packaging solutions.

 

Design drawings
Based on customer needs, our design team provides professional drawing solutions, including bag design, size specifications, thickness selection and printing effects, to ensure that the product is beautiful and practical and in line with the customer's brand positioning.

 

Blown Film
Using advanced film blowing machines, through precise temperature control and ratio technology, the film thickness is uniform, the tensile strength is high, and the surface is smooth, providing high-quality substrate for subsequent printing and bag making.

 

Packaging bag printing
We are equipped with high-speed color printing machines that support gravure printing and flexographic printing, up to 12 colors, with clear and bright patterns and high color reproduction, helping customers to better display their brands.

 

Bag Making
Through fully automatic bag-making equipment, we can accurately seal and cut the bags according to the bag shapes required by customers (such as ziplock bags, express bags, shopping bags, etc.), ensuring that the bags are strong and durable, with neat and beautiful appearance.

 

Quality Inspection
From tension, sealing, thickness, transparency to printing effect, we have multiple testing procedures to ensure that each batch of products meets international quality standards and the defective rate is reduced to a minimum.

 

Packaging and warehousing
Finished products are packaged in standard cartons or custom packaging, in batches with precise quantities to ensure the bags are not contaminated or damaged during transportation. Final inspection, including appearance, function, and quantity verification, is carried out before shipment to ensure that each batch meets customer requirements before being stored for shipment.

 

Loading and shipping
Finished products are loaded into containers through reasonable stacking to make full use of space and prevent squeezing and deformation. They are then arranged for sea, air or land transportation according to the transportation method specified by the customer to ensure safe and timely delivery.

 

Packaging and Delivery

Packing detail

Packing with wooden cases, provide different solutions of shipping way.

Payment

We accept many payment term, such as T/T, Western Union, L/C.

Warranty period

One-year warranty, Installation, and commissioning of specific products.

Delivery time

Most of our products are in stock and can be delivered upon payment. The delivery time usually does not exceed 15 days.

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FAQ

 

Q: Are you a factory or a trading company?

A: We are a plastic packaging bag manufacturing factory with our own production lines, supporting OEM/ODM and providing comprehensive customization services for materials, sizes, thickness, printing, etc.

Q: What types of plastic packaging bags do you offer?

A: We produce various packaging bags made of PE, PP, PO, PA, POF, PVC, EVA, PLA, biodegradable materials, etc., including self-sealing bags, zipper bags, courier bags, food bags, roll bags, flat bags, wicket bags, side-seal bags, vacuum bags, square bottom bags, etc.

Q: What items can be customized?

A: Size, thickness, color (within 12 colors), printing pattern, material, and functional structure (self-sealing strip, handle hole, side gusset, bottom gusset, etc.) can be customized.

Q: What is the minimum order quantity (MOQ)?

A: The MOQ for regular products varies from 100kgs to 1000kgs, depending on the bag type, size, material, and number of printing colors.

Q: Are samples available? Are they free?

A: We can provide free existing samples; new molds or customized samples will incur a cost depending on the requirements.

Q: How long does it take for sampling?

A: Regular non-printed bags: 3–5 days; printed customized samples: 7–10 days.

Q: How long is the mass production lead time?

A: Usually 10–35 days, depending on the order quantity and production schedule.

Q: What quality certificates can you provide?

A: We provide ISO9001, ISO14001, SGS, ROHS, FDA (for some food bags) reports, and can cooperate with testing according to customer requirements.

Q: Do you use food-grade materials?

A: Yes, we can produce food-grade PE/PP/PA+PE/PLA and other materials that meet food contact standards.

Q: Can you accept customization with environmentally friendly materials?

A: Yes. We can customize environmentally friendly solutions such as biodegradable, compostable, recyclable materials, and PCR recycled materials.

Q: What printing methods do you offer?

A: We offer gravure printing and flexographic printing, supporting up to 12-color high-definition printing.

Q: How do you control quality?

A: From raw material inspection, film blowing, printing, and bag making to packaging, we have strict quality control procedures in place, and provide records of tensile testing, drop testing, leak testing, etc.

We're professional grey shipping bags manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to buy or wholesale custom made grey shipping bags at competitive price from our factory.

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