Custom Waterproof and tear-resistant PE self-sealing bags
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  • Waterproof and tear-resistant PE self-sealing bags
  • Waterproof and tear-resistant PE self-sealing bags

Waterproof and tear-resistant PE self-sealing bags

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Product Details

This product is specially designed for packaging small e-commerce parcels, documents, jewelry, and other lightweight items. It uses a new blend of LDPE and LLDPE virgin materials, manufactured in strict accordance with GB/T 10454-2000 logistics packaging standards. It is odorless, free of harmful volatile substances, and contains no recycled materials. Balancing softness and tensile strength, it perfectly solves the core pain points of packaging small e-commerce parcels: "easily damaged, susceptible to moisture, difficult to seal, and privacy leaks." Suitable for e-commerce sellers, courier outlets, and individual senders, it is the preferred product for packaging lightweight small parcels. The blended material gives the product excellent tensile and tear resistance, with a tensile strength ≥18MPa and a transverse tear strength ≥8N/cm. During logistics transit, it is not easily damaged or broken by squeezing, dragging, or collisions, effectively protecting small items inside (such as jewelry, cosmetic samples, documents, data cables, etc.) from damage. The dense material also provides excellent waterproof, stain-resistant, and dustproof properties. Effectively isolates rain, moisture, and dust, ensuring the contents remain dry and clean even during open-air sorting and rainy season transportation, preventing damage due to dampness and reducing complaints about damaged packages.

The integrated concave-convex rib self-sealing design is easy to operate, requiring no tape or sealing machine; packing can be completed with one hand, significantly improving packing efficiency. It's suitable for bulk packing needs during e-commerce promotions and peak delivery periods. It can be opened and closed repeatedly (≥100 times), facilitating recipient inspection and allowing e-commerce sellers to reuse the package, reducing packaging costs. Available in matte/transparent options, the matte version effectively conceals the contents, protecting customer privacy and preventing unauthorized viewing and information leaks, especially suitable for small items with high privacy requirements such as cosmetics and jewelry; the transparent version allows clear viewing of the contents, facilitating courier sorting. Inventory checks reduce sorting errors and improve sorting efficiency.

With a wide temperature range of -20℃ to 70℃, it can adapt to different transportation environments in various regions and seasons, including the frigid north and the hot south. It will not crack at low temperatures or soften at high temperatures, and will not release harmful substances, ensuring the safety of goods during transportation. A full range of sizes are available: small sizes are suitable for packing very small items such as jewelry, cosmetic samples, and data cables; medium sizes are suitable for packing documents, face masks, and small stationery; large sizes are suitable for packing small clothing, toys, and skincare products; and extra-large sizes are suitable for packing slightly larger, lightweight items, meeting the needs of packing small and lightweight items of different sizes. Custom sizes and irregular shapes are supported. Easy-tear flaps and scratch-resistant coatings can be added. Waybills, store logos, and warning messages (such as "Fragile" and "Personalized Items") can be printed on them. Enhance brand recognition while standardizing express packaging labeling and adapting to automated sorting equipment.

The lightweight design of each bag effectively reduces logistics and transportation costs, meeting the "small and light parcel" express delivery pricing standards and helping e-commerce sellers and express delivery outlets save on logistics expenses. The environmentally friendly, recyclable, and biodegradable materials emit no harmful volatile substances, aligning with the trend of green logistics development and meeting national environmental packaging requirements, passing environmental tests by various logistics companies. The finely polished edges are smooth and burr-free, preventing cuts and enhancing safety and convenience. Suitable for e-commerce sellers, couriers, and individuals, it is widely used in e-commerce small parcel packaging, personal parcel delivery, and daily packaging at express delivery outlets, perfectly solving the pain points of low efficiency, poor protection, and privacy leaks in small and light parcel packaging.

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Core Advantage Specification

Product Advantages

- Tear and Breakage Resistance: Made of LDPE+LLDPE blend material, it boasts excellent tensile and tear resistance, with a tensile strength ≥18MPa and a transverse tear strength ≥8N/cm. It is resistant to damage from compression and dragging during logistics, significantly reducing the rate of damage in express deliveries and minimizing complaints.

- Waterproof, Dustproof, and Leak-proof: The dense, seamless material provides a strong self-sealing seal, effectively isolating rainwater, moisture, and dust, preventing internal items from becoming damp, contaminated, or leaking out. Suitable for open-air sorting and rainy season transportation scenarios.

- Convenient and Efficient Packaging: The integrated self-sealing rib design eliminates the need for tape or sealing machines, allowing for one-handed packing. It can be repeatedly opened and closed, suitable for bulk packing, significantly improving packing efficiency during e-commerce promotions and peak express delivery periods.

- Comprehensive Privacy Protection: Available in matte and transparent finishes. The matte finish can conceal internal items, preventing privacy leaks and unauthorized viewing, suitable for small items requiring privacy, such as cosmetics and jewelry; the transparent finish facilitates sorting and inventory management.

- Wide temperature adaptability: Withstands temperatures from -20℃ to 70℃, suitable for transportation environments in different regions and seasons. It does not crack at low temperatures or soften at high temperatures, and does not release harmful substances, ensuring safer transportation.

- Complete specifications + flexible customization: Four standard sizes are available, and custom sizes and irregular shapes are also possible. Easy-tear seams and scratch-resistant coatings can be added. Labels, logos, and warnings can be printed, adapting to various small and lightweight packaging needs. Brand customization is supported.

- Economical and environmentally friendly: Lightweight bags reduce logistics and transportation costs; the material is recyclable and biodegradable, meeting green logistics requirements. It emits no harmful volatile substances and can be reused, further reducing packaging costs.

- Suitable for automated sorting: Smooth surface, suitable for labeling and printing waybills; waybills are not easily detached after application. Compatible with automated express sorting equipment, improving sorting efficiency and reducing sorting errors.

Key Selling Points

Tear-resistant and damage-resistant, waterproof, dustproof, and leak-proof; self-sealing for convenience and efficiency; excellent privacy protection; wide temperature adaptability; complete specifications and customizable; economical and environmentally friendly, saving costs. Primarily designed for "dedicated to e-commerce small parcels, convenient protection, high efficiency and cost-effectiveness," perfectly solving the pain points of low efficiency, easy damage, moisture susceptibility, privacy leaks, and high costs in e-commerce small parcel packaging. Suitable for e-commerce sellers, express delivery outlets, and personal parcel shipping scenarios, balancing protection, convenience, and economy, making it the core preferred product for packaging lightweight small parcels.

Application Scenarios

- E-commerce Seller Scenarios: Sellers on e-commerce platforms such as Taobao, Pinduoduo, and JD.com use it to package lightweight small items such as jewelry, beauty samples, data cables, headphones, face masks, small stationery, documents, and cards. Bulk packaging is efficient and convenient, reducing damage rates and improving customer experience.

- Express Delivery Outlet Scenarios: For daily parcel delivery at express delivery stations and outlets, this packaging is used to pack small, lightweight items, documents, and gifts for personal shipments. The self-sealing feature is convenient, requires no additional tools, and improves delivery efficiency. It can also be used for sorting small items and temporary packaging during express transit.

- Personal Parcel Delivery Scenarios: For personal mailing of documents, photos, jewelry, small gifts, etc., this waterproof and tear-resistant packaging protects the items. The matte finish protects privacy and prevents information leakage. The self-sealing design is easy for individuals to operate, eliminating the need to find tape.

- E-commerce Promotion Scenarios: During major e-commerce promotions such as Singles' Day, 618, and Chinese New Year shopping festivals, e-commerce sellers can efficiently and conveniently pack small, lightweight items in bulk. This allows for rapid completion of packing tasks, meeting peak packing demands while reducing damage rates and after-sales complaints.

- Other Logistics Scenarios: For small item sorting and temporary packaging at logistics transit stations, preventing small items from being lost or damaged by moisture; for cross-border e-commerce small item packaging (customizable sizes and printing to meet cross-border logistics standards), adapting to the needs of international express small item transportation.

Waterproof and Tear-Resistant PE Self-Sealing Bags for Express Delivery (Suitable for packaging small e-commerce items, documents, jewelry, and cosmetic samples; convenient self-sealing, leak-proof, moisture-proof, and privacy-protecting)

Material

Brand new food-grade LDPE + LLDPE blended virgin material, odorless, free of harmful volatile substances, meets environmental protection standards for logistics packaging, combines the softness of LDPE with the tensile strength of LLDPE, dense material, excellent waterproof, stain-proof, and tear-proof performance, contains no recycled materials, and additives meet relevant environmental protection requirements.

Standard Thickness

0.08mm-0.12mm (customizable to 0.12mm-0.18mm for enhanced puncture and breakage resistance), uniform thickness, error ≤0.005mm, stable batch performance, meeting the protection needs of various small express deliveries.

Density

0.915-0.928 g/cm³, the material is flexible and elastic, with a tensile strength ≥18MPa and a transverse tear strength ≥8N/cm. It is not easily damaged or broken and can withstand multiple handling, compression, and dragging during logistics transit.

Temperature range

-20℃-70℃, adaptable to different regional and seasonal transportation environments. It does not become brittle at low temperatures or soften at high temperatures, and does not release harmful substances, making it suitable for express delivery in extreme climates such as the frigid north and the scorching south.

Sizes

Small (15cm×20cm), Medium (20cm×25cm), Large (25cm×30cm), Extra Large (30cm×40cm). Custom sizes and irregular shapes are available. Self-sealing design is supported, and easy-tear openings can be added as needed. Suitable for small e-commerce items, documents, jewelry, etc. of different sizes.

Surface Characteristics

Matte/transparent options available. The matte finish effectively conceals the contents, protecting customer privacy and preventing unauthorized viewing. The transparent finish allows for clear visibility of the contents, facilitating sorting and inventory management. The smooth, burr-free, and impurity-free surface allows for printing of waybills, logos, and warnings; the printing adhesion is strong and resistant to fading.

Sealing Method

Integrated self-sealing design with raised and recessed ribs allows for easy sealing with a simple squeeze, eliminating the need for tape, sealing machines, or other additional tools. It can be opened and closed repeatedly (≥100 times), providing a secure seal against moisture, leaks, and dust, effectively preventing internal items from getting damp, dusty, or leaking out. It also facilitates easy opening and closing for the recipient.

Manufacturing Process

Integrated blown film and die-cutting in a logistics-grade dust-free workshop, resulting in smooth, burr-free edges, no gaps, and no bubbles. The ribs and bag body are co-extruded as a single unit, preventing detachment. Custom gravure printing (1-6 colors) is available, using environmentally friendly inks that meet logistics packaging printing standards and leave no harmful residues.

Environmental rating

Recyclable, free of harmful volatile organic compounds, and biodegradable after disposal (meets national environmental packaging standards), it does not pollute the environment and aligns with the trend of green logistics development; each bag is lightweight, reducing logistics and transportation costs and meeting the "lightweight and small parcel" express delivery pricing standards.

Additional features

A scratch-resistant coating can be added to prevent the bag surface from abrading during transportation, thus preventing the waybill from becoming blurred; supports labeling design, the waybill is not easily detached after being pasted, and is compatible with automated express sorting equipment to improve sorting efficiency.

About Us
Kunshan Paiteng Packaging Products Co., Ltd.
Kunshan Paiteng Packaging Products Co., Ltd.

The headquarters of Paiteng Company (Kunshan Paiteng Packaging Products Co., Ltd.) was established in 2015, and Paiteng Philippines was founded in 2017. Since its establishment, the company has set the grand goal of making the best packaging in the world and established its mission to achieve customer value. The company covers an area of over 8000 square meters and is located in Zhangpu Town, Kunshan, one of the top 100 counties. The company specializes in the research and production of packaging products such as vacuum forming, plastic bags, and die-cutting.

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