Steb
Evident Bags
STEB
BAGS
Tamper
Evident
Bubble Bags
BUB
BLE
BA
GS
Tamper Evident Bags
Qline Tamper Evident Envelopes have a higher level of tamper evidence security features that provide an immediate irreversible sign that it has been tampered with.
They are made of Co-Extruded Polyethylene Films that are black on the inside and white on the outside or can be transparent, and they come with a hot melt adhesive strip for easy and permanent closure.
It has a specific security seal with vacant characters that indicates tampering. Once sealed, the envelope cannot be opened; the only way to open it is to rip or cut it. If somebody tries to tamper with the product, VOID letters will be transferred to the other side, indicating that it has been tampered with.
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..
- Material: LDPE / LLDPE
- Thickness: 50 to 150 micron
- Recycled Content: Available
- Printing: Up to eight color / Photo print
Tamper evident closure
Thermocromic tape (Level-4)
Multiple direction barcode
Multiple tear of receipt
Twin seal
Bottom gusset
Airway bill pouch (Jacket)
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
- Recycled Content: Available
- 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
- Recycled Content: Available
- 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.