What are Tamper Evident Bags?
Tamper evident bags (tamper proof bags) are customizable packaging solutions that combine anti-counterfeiting and anti-theft features.
Ecosecuritytape offer flexible sizing and printable content options, integrated with five security levels (Level I, Level II, Level III, Level IV, and Level V), based on the based on the ISO 17712 international cargo security standards.
These security bags are ideal for storing and transporting high-value items, confidential documents, ballots, and evidentiary materials.
It is widely used in fields such as e-commerce, logistics, banking, education, elections, and judicial systems.
If you want to order and make your customized tamper evident security bag, feel free to contact us!
Why Tamper Evident Bag Matters
Tamper evident bags are not simply an upgraded version of ordinary packaging—they serve as the frontline security barrier that ensures the safe flow of valuable items across various industries.
Through professional design features that create irreversible evidence of opening, these bags prevent tampering, substitution, and theft from the very beginning. At the same time, they clearly define responsibility at every stage of handling, making them a critical foundation for building trust throughout the entire process.
1. Three Core Values That Make Tamper Evident Bags Essential
• Proactive Risk Prevention:
One-time sealing mechanisms—such as VOID adhesive layers and tear-off locking strips—ensure that any unauthorized opening leaves irreversible evidence, including visible VOID messages or seal breakage. This eliminates the possibility of tampering and resealing.
• Clear Accountability and Traceability:
An intact bag serves as direct proof of “no unauthorized access.” When damage occurs, responsibility can be quickly traced across handling stages, reducing disputes between departments or partners.
• Strengthened Brand Trust:
Tamper evident bags convey a strong commitment to product authenticity and quality. End users can visually verify package integrity, reducing complaints, fraud risks, and potential reputation damage.
2. Key Application Scenarios
As a “standard security requirement’’ in high-risk industries, tamper evident bags are widely used in:
- Finance & Government:
Cash handling, confidential documents, and secure transfer of checks or certificates. - Pharmaceutical & Medical:
Transport of prescriptions, vaccines, and pathology samples, preventing contamination, substitution, and unauthorized access. - Security & Law Enforcement:
Evidence preservation, case file sealing, and maintaining a complete chain of custody. - Luxury Retail:
High-value goods such as luxury items and premium electronics, helping prevent counterfeiting, theft, and product swapping. - Cross-Border Logistics:
International shipments requiring tamper resistance to reduce disputes and ensure compliance during multi-country transit.
3. Choosing the Right Bag: Key Selection Criteria
- Match the Seal Type to the Application:
Finance: tear-off locking seals + serial numbering
Medical/pharma: VOID adhesive layers + sterile-grade materials - Verify Certifications:
Prioritize suppliers with SGS testing, REACH compliance, and ISO 9001 quality management systems. - Ensure Customization Capability:
Look for suppliers who support custom sizes, anti-counterfeit markings (logos, barcodes, coding), and rapid sampling.
Barcode Trackable Number
Deposit bags feature tear-off/perforated sections with serial numbers for multi-department tracking of packaged items.
Cold and Heat Tamper-Evident
The seal of our tamper-evident bags can withstand removal attempts that use low or high temperatures.
Easy Writable Surface
Our security bags are made from writable material that holds ballpoint ink for easy writing.
Tamper Evident Bags Type
| Type of Tamper Evident Bags | Typical Applications | Industries Using Them |
|---|---|---|
| VOID Tamper Evident Bags | Cash handling, document transfer, confidential papers, high-security items requiring visible tamper indicators | Banks, financial institutions, government agencies, international logistics |
| STEB Bags (Duty Free Bags) | Tamper-evident packaging for duty-free liquids, alcohol, cosmetics, and cross-border retail items | Airport duty-free shops, airlines, travel retail, airport security |
| Evidence Bags (Chain-of-Custody Bags) | Crime scene evidence collection, sealed storage of electronics, narcotics samples, forensic extraction materials | Police departments, law enforcement, security agencies, forensic labs |
| Cash Deposit Bags / Cash-in-Transit Bags | Daily cash turnover, store-to-bank deposits, ATM replenishment, CIT secure transport | Retail chains, supermarkets, cash logistics companies, casinos |
| Permanent Seal Tamper Evident Bags | Warehouse pick-and-pack, internal transfers, express parcels, one-time irreversible sealing | E-commerce fulfillment centers, retail supply chains, global couriers |
| Pharma Transport Bags | Medication delivery, vaccine transport, pathology samples, sterile medical supplies | Hospitals, pharmaceutical companies, clinical laboratories |
| High-Value Retail Tamper Evident Bags | Luxury goods packaging, jewelry shipping, high-end electronics, warranty fraud prevention | Luxury brands, electronics manufacturers, boutique retail |
| Coin Bags / Money Coin Bags | Coin sorting, daily cash management, small-denomination transfers, CIT coin processing | Banks, supermarkets, cash centers, financial service providers |
Tips
Need tamper proof bags product samples or custom specifications?
📧 Email: info@ecosecuritytape.com
📱 WhatsApp: +1 615 480 2757
Contact us to receive free samples and expert guidance.
How to Produce Tamper Evident Bags
The production of tamper evident bags is a highly structured process that links customer requirements, technical execution, and strict quality control. Every step directly determines the bag’s tamper-evident performance, suitability for different scenarios, and compliance with international standards.
With more than 10 years of experience in security packaging manufacturing, we have developed a standardized, end-to-end production system covering the full journey—from customer requirements to final delivery.
1. Customer Requirement Confirmation
Requirement confirmation is the starting point of production and the key to avoiding rework later.
Through in-depth communication and a structured requirement checklist, we ensure all customer needs are fully captured.
Key steps include:
- Scenario Deep-Dive:
Through WhatsApp discussions or video meetings, we identify the customer’s core use case—whether it is cold-chain transport for vaccines, cash handling for banks, duty-free anti-tampering for airport retail, or forensic evidence preservation.
Different scenarios require different material thicknesses, tamper-evident components, and environmental resistance levels. - Parameter Confirmation:
We verify every technical detail:
size (L × W × thickness), tamper-evident technology (VOID tape, tear-off seal, laser security features), material type (laminated film, kraft paper, sterile medical film), printing requirements (logo, QR code, multilingual warnings), and compliance needs (REACH, ROHS, SGS, etc.). - Requirement Documentation:
All information is consolidated into a Customer Requirement Confirmation Sheet, outlining specifications, technical standards, lead time, and acceptance criteria.
This document is validated by the customer and used as the official basis for production.
2. Sample Production: Front-End Validation of Feasibility
Sample production is the “litmus test” to verify feasibility and ensure the final product fully matches customer expectations.
Process includes:
- Customized Sample Creation:
Based on the confirmed requirement sheet, our R&D team prepares materials and produces 1–3 sample sets.
Example: For a Hanoi Airport duty-free client, we produced samples using food-grade PE + VOID tape, printed with the “OPENVOID” warning text. - Sample Testing:
Each sample undergoes three key tests:- Tamper Evidence Test: Simulated opening to confirm clear and irreversible tamper markings.
- Scenario Simulation: e.g., cold-chain testing at −20°C to ensure adhesive stability.
- Compliance Pre-Check: Quick screening to ensure materials meet required certifications.
- Sample Delivery & Confirmation:
Photos and videos are first shared for quick review, followed by physical sample delivery.
We assist the customer in on-site scenario testing and fine-tune the sample until it is fully approved.
Only then do we proceed to mass-production discussions.
3. Raw Material Procurement: Quality Control at the Source
Raw materials directly determine the performance of tamper evident bags.
We use a systematic procurement process combining certified suppliers and strict incoming inspection.
Key measures:
- Material Selection:
- REACH-approved laminated films
- Medical-grade sterile films
- High-quality VOID tapes and tear-off seals
- FDA food-contact compliant UV inks
- Supplier Qualification:
Suppliers must provide SGS reports and manufacturing certificates.
Semi-annual on-site audits verify process integrity and compliance. - Incoming Inspection:
Quality inspectors test each batch for:- Film thickness and tear strength
- Adhesive tack and VOID clarity
- Ink safety and print adhesion
Any non-conforming materials are rejected and replaced.
4. Production Process: Standardized Workflows Ensure Consistency
We combine automated production lines with human quality checkpoints to ensure consistent mass-production results.
Core steps include:
- Material Cutting:
Automatic cutting machines ensure ±0.5 mm precision to avoid size mismatch during sealing. - Printing:
High-resolution flexographic printing delivers 300+ dpi clarity for logos, QR codes, and warning messages. - Tamper-Evident Component Assembly:
Automated equipment applies VOID tape, sealing strips, and tear-off locks with ≤1 mm positional deviation. - Bag Forming:
Heat-sealing machines operate within controlled temperature ranges (e.g., 120–150°C for laminated films) to ensure strong and leak-proof seals.
5. Product Quality Inspection: Full-Spectrum Testing
Quality inspection is the final safeguard before shipment.
We use a dual system of batch sampling and critical-point full inspection.
Inspection process includes:
- Semi-Finished Product Checks:
10% sampling after printing and sealing to check:- Print clarity
- Component alignment
- Seal strength
- Final Product Inspection:
- Size and dimensional accuracy
- Tamper-evidence test (50 random bags)
- Leakproof test (air-inflation)
- Print quality
- Compliance marking integrity
- Defect Handling:
Non-conforming items are labelled, destroyed, and recorded in a Quality Improvement Report for process enhancement.
6. Product Packaging: Protection and Traceability
Packaging ensures both transport safety and customer traceability.
- Inner Packaging:
Vacuum sealing or moisture-proof PE bags; fixed quantity per pack (e.g., 100 pcs).
Prevents print abrasion or adhesive degradation during transport. - Outer Packaging:
Five-layer corrugated cartons with bubble-wrap cushioning.
Cartons are labelled with batch numbers, production dates, and quantities for traceability.
7. Product Delivery: Efficient Cross-Border Fulfillment
We provide comprehensive logistics support tailored to B2B customers worldwide.
Delivery support includes:
- Logistics Options:
UPS / DHL / FedEx express shipping, air freight, or sea freight consolidation.
Urgent orders can be arranged via expedited air transport. - Customs Documentation:
Assistance with commercial invoices, packing lists, certificates of origin, and other import documents. - Tracking & After-Sales:
Tracking numbers are provided immediately after dispatch.
We follow up on delivery status and collect customer feedback proactively.
Tips
For more about our products and our company, pls download our catalog, it’s free, request free samples, please contact:
📧 Email: info@ecosecuritytape.com
📱 WhatsApp: +1 615 480 2757
Tamper Evident Security Bag Parameters
| Name | Tamper evident security bag |
| Material | LDPE transparent or opaque (white/black co-ex) or all customized request |
| Tape | Hot melt adhesive tape |
| Bag thickness (mm) | From 0.045mm-0.2mm(45-200 microm) standard 0.075mm |
| Barcode Serial Number | Do as you request The number of customized barcode needs to be bigger than the quantity of bags in case of production loss |
| Tamper-Evident Closure | Permanent tape or Level 1 to Level 4 tamper-evident tape. Level 4 tape providing visible indication of tampering by means of 1. Physical tampering 2. Freezing 3. Water & Solvent 4. Heat |
| Printing color | Gravure printing Can be printed up to 8 colors |
| Color | Customized |
| OEM & MOQ | Accept customize size, thickness, material, printing, and bag style MOQ generally is 20000pcs at least |
| Certification | ISO9001 |
| Industrial Use | Banks, Government, Casino, Ministry, Armored Car Companies, Airport, Retail Chain |
| Sample | FREE stock samples available offered Refund part/full of the sample fee after order confirmed Custom samples lead time : 7-10 working days |
🔐 Tamper Evident Security Bag Video Showcase | EcoSecurityTape
🎥 Discover how EcoSecurityTape’s tamper evident security bags help protect your assets, documents, and sensitive shipments across industries.
Our security bags are engineered with multiple layers of tamper-proof features including VOID sealing, barcode tracking, and unique serial numbers.
Ideal for banks, logistics, hospitals, and government agencies.
✅ Customized sizes, materials, and printing
✅ Fast global shipping and OEM/ODM service
✅ ISO-certified and industry compliant solutions
🔐 Tamper Evident Security Bag Types – Detailed Comparison
| Bag Type | Typical Use Case | Key Features & Benefits |
|---|---|---|
| Duty Free Bag | Used by airport duty-free shops for sealing liquids, tobacco, electronics for international flights; ensures security compliance during transfer and transit. | ✅ ICAO-compliant red tamper-evident closure ✅ Transparent multilayer film ✅ Tear-resistant material ✅ Printed travel warnings and seal time/date zone |
| Bank Money Bag | Banks and cash-in-transit companies use it for daily deposit runs, ATM servicing, and internal transfers of cash and cheques. | ✅ Permanent VOID closure with unique serial numbers ✅ Writable white panel for signatures ✅ Custom size, barcode, and color options ✅ Audit-ready chain-of-custody |
| Pharmacy Bag | Hospitals, pharmacies, and labs use it for transporting patient medication, prescriptions, or biological samples securely and discreetly. | ✅ Medical-grade material (FDA/ISO compliant) ✅ Opaque or semi-transparent for discretion ✅ Tamper-evident zipper or adhesive strip ✅ Leak-resistant design |
| Deposit Bag | Used by retail stores, fuel stations, restaurants to drop shift-end cash, receipts, and POS reports into bank drop-boxes or safes. | ✅ Single or dual-pocket design (for receipts/cash) ✅ Easy-tear line for secure closure ✅ Sequential barcoding & tear-off slip ✅ Compatible with deposit safes |
| Police Evidence Bag | Law enforcement agencies use for securing forensic evidence, narcotics, or documents with full chain-of-custody integrity during investigation. | ✅ High-strength material with visible tamper seal ✅ Write-on evidence field (suspect/item/date/location) ✅ Custom QR/barcode ✅ Heat-seal or adhesive closure options |
📚 More Tamper Evident Packaging Solutions
Want to better understand how different industries apply tamper-evident packaging in real-world scenarios?
Check out our in-depth guides and blogs to explore key product applications, materials, and supplier insights:
Whether you’re in logistics, healthcare, retail, or law enforcement, EcoSecurityTape provides tailored, high-quality tamper-evident packaging to keep your assets safe and secure.
📩 Need samples or expert consultation? Contact us now to discuss your custom solution.
Before order you want to know
| Sample | 1. FREE stock samples available offered 2. Refund part/full of the sample fee after order confirmed 3. Custom samples lead time: 5-7 working days |
| Production time | Sample Production: typically takes 5-7 days Bulk Production: 25-40 days after sample approval and order confirmation |
| Shipping | Express Shipping: 3-7 days (via DHL, FedEx, etc.) Standard Shipping: 10-25 days (depending on your location) |
Why Choose Our Tamper Evident Security Bags?
Our tamper evident bags are engineered with multi-layer film, strong adhesives, and visible tamper alerts—making them ideal for secure packaging in banks, retail chains, government institutions, and healthcare systems.
From barcode tracking to custom printing, our solutions ensure your assets stay safe across every transit point. Trust EcoSecurityTape for certified quality, global delivery, and peace of mind.
We understand that different industries face unique security challenges. That’s why we offer tailored features such as:
- Sequential numbering and dual-sided barcodes for fast inventory checks
- Writable panels for easy documentation and labeling
- Temperature- and solvent-sensitive inks to reveal any tampering attempt
- Custom sizes and logos to match operational and branding requirements
- High-opacity or transparent film based on privacy needs
All our bags are manufactured in ISO-certified facilities and undergo strict quality control, including seal strength testing and tamper detection verification. We also offer low minimum order quantities, fast lead times, and OEM/ODM services to support clients from pilot programs to large-scale rollouts.
Whether you’re securing cash deposits, pharmaceuticals, confidential files, or duty-free goods, EcoSecurityTape is your trusted partner in tamper-evident packaging solutions—helping reduce shrinkage, support compliance, and strengthen brand protection.
Free Sample
1. FREE stock samples available offered
2. Refund part/full of the sample fee after order confirmed
Fast Ship & Delivery
In-stock security bank deposit bags ship immediate, while custom orders are delivered within 10-15 days.
Wide Selection
Our security bank deposit bags offer wide customizable sizes and formats to meet your business needs.
FAQ-For Tamper Evident Security Bags
Our tamper evident security bags are available in a variety of sizes, with custom sizes also available.
Yes, we offer custom tamper evident security bags with your logo, size, color, and other specifications. Contact us and provide your requirements on tamper evident bag design details.
The MOQ for tamper evident security bags is 20,000 pcs for custom orders.
Stocked tamper evident bag: normally takes 3 days.
Custom tamper evident bag: 15 days without printing plates); 20 days (with printing plates).