Tamper Evident Bags

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Steb
Evident Bags
STEB
BAGS
Tamper
Evident
Bubble Bags
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Evident Bags
Evident Bags
Evident
Bubble Bags
Tamper Evident Bags
Tamper-Evident Bags – High-Security Packaging for Sensitive Shipments
As a reliable tamper-evident bags supplier and a leading provider of security bags wholesale, Qline Packaging offers high-quality, tamper-evident envelopes designed to provide superior protection for sensitive shipments. Made from durable co-extruded polyethylene films, our tamper-evident bags are available in both opaque (black interior, white exterior) and transparent options, offering visibility and security in one solution.
Each bag is equipped with a hot-melt adhesive strip for a permanent, secure seal. Once sealed, the bag cannot be opened without leaving an unmistakable “VOID” mark, ensuring your contents remain untouched during transit.
Key Features & Business Benefits
- Tamper-Evident Security: Our tamper-evident bags feature a unique security seal that leaves a clear, irreversible “VOID” mark when tampered with, providing instant evidence of unauthorized access.
- Durable & Reliable: Made from high-quality co-extruded polyethylene films, our bags are tough, puncture-resistant, and designed to withstand the rigors of shipping while keeping your contents secure.
- Customizable Options: Available in various sizes, with customizable options to fit your specific security and branding needs. Choose between opaque or transparent bags for added visibility or discretion.
- Easy-to-Use Adhesive Closure: The hot-melt adhesive strip ensures a permanent seal that is easy to apply and guarantees that your shipments remain tamper-proof until they reach their destination.
- Versatile Applications: Perfect for confidential documents, precious items, sensitive materials, and high-value goods, our tamper-evident bags are ideal for businesses in industries like finance, e-commerce, legal services, and logistics.
Applications Across Industries
Our tamper-evident bags are widely used by:
- E-commerce: Secure packaging for high-value items during transit
- Legal & Financial: Protection for confidential documents and sensitive materials
- Logistics: Ensuring secure storage and transportation of goods
- Retail & Distribution: Safeguarding products from unauthorized access
Why Choose Qline Packaging?
As a trusted tamper-evident bags supplier, Qline Packaging delivers reliable, high-security packaging solutions that businesses can depend on. Whether you’re in e-commerce, legal services, or any other industry requiring secure packaging, we provide durable, cost-effective solutions to ensure the safety of your shipments.
Partner with Qline for your security bags wholesale needs and enjoy peace of mind knowing that your products and sensitive materials are securely protected throughout transit.
These bags are widely used for transit of highly confidential documents, precious items like:
- Examination Papers.
- Passport.
- Evidence For Police Dept.
- Batch Samples.
- Credit/debit card.
- Currency.
- Confidential Documents.
- Aviation.
- Forensic Labs.
- Gold Loan etc..



Tamper Evident
Bubble Bags
Bubble wrap is an essential layer of protection in courier envelopes, providing a cushion for fragile items during shipping.
Tamper Evident Bubble bags have a higher level of tamper evidence security features that provide an immediate irreversible indication that it has been tampered with.
When delivering expensive things such as mobile phones, jewelry, precious stones, and so on, the risk of fraud is significant. Where evidence of tampering is required.
There are two options available. Hard bubbles (inverted shapes where the bubble is extruded directly on printed film) and soft bubbles are the two types of bubbles (bubble is extruded separately and heat laminated with printed film in the bag making machine).



- Material: LDPE / LLDPE
- Thickness: 50 to 150 micron
- Printing: Up to eight color / Photo print
- Co-branding printing available

Tamper evident closure

Thermocromic tape (Level-4)

Multiple direction barcode

Peal & Seal (Permanent Adhesive)

Thick seal

Bottom gusset

Airway bill pouch(jacket)

Multiple tear of receipt



Bottom gusset

Steb Bags
The International Civil Aviation Organization (ICAO) has established standards for the safe transport of LAGs (Liquids, Aerosols, and Gels), under which LAGs purchased by passengers from duty-free shops and subjected to security checks or on boarding the aircraft are placed into STEBs for safe keeping.


- Material: LDPE / LLDPE
- Thickness: 50 to 150 micron
- Printing: Up to eight color / Photo print
- Co-branding printing available

Sequence number

Perforation

Tamper evident closure

Thermocromic tape (Level-4)

Multiple direction barcode

Twin seal

Thick seal on 3 side

Multiple tear of receipt

Writable surface

FAQs
How do tamper-evident bags provide security?
These bags include a security seal that shows a clear VOID message if anyone attempts to open them. The imprint is permanent, making tampering instantly visible.
What are tamper-evident bags made from?
They are made using co-extruded polyethylene films for strength and confidentiality. Options include black-inside/white-outside bags or fully transparent variants, depending on visibility requirements.
Can I use tamper-evident bags for confidential documents?
Yes. These bags are widely used for passports, exam papers, banking documents, police evidence, and other sensitive materials that require secure handling.
Can tamper-evident bags be customized with unique Barcodes or QR Codes?
Yes. We can add unique Barcodes or QR Codes to each bag, enabling item-level tracking, authentication, and improved security across sectors such as banking, logistics, healthcare, and e-commerce.
Where can I keep my invoice or documents while shipping?
For shipments that require a POD window, we offer Mailers with a POD Pouch, which include a dedicated transparent pocket for invoices, waybills, or shipping documents.
What items are best suited for tamper-evident bags?
These bags are ideal for securing high-value or sensitive items such as currency, bank cards, examination papers, confidential files, and forensic evidence.
Do you offer ready stock for small businesses?
You can order ready stock from OnGoMart.com, our online platform designed for small businesses and startups that need quick, low-quantity purchases.