Tamper Evident Tape and VOID Labels for Anti-Tamper Packaging
Tamper-evident tape and tamper-evident labels are anti-tamper security materials that show visible VOID, OPEN VOID, residue, or surface damage after removal. They help identify unauthorized opening, product replacement, document tampering, and label transfer during storage, shipping, and delivery.
For B2B packaging, security is not only about closing a carton. It is also about protecting product value, reducing loss, supporting claim inspection, and building trust across the supply chain.
As a global adhesive materials manufacturer from China, YG Group, officially Shanghai Yongguan Adhesive Products Corp., Ltd., provides adhesive tapes, self-adhesive label materials, and B2B adhesive solutions for packaging, logistics, brand protection, and anti-counterfeit applications.
Learn more about our adhesive material capabilities: Adhesive Tape Solutions
Key Takeaways
- Tamper evident tape is mainly used for carton sealing and logistics security.
- Tamper evident labels are better for documents, warranty seals, certificates, and valuable items.
- Both products leave visible traces after removal.
- VOID, OPEN VOID, logo printing, warning text, QR codes, and custom patterns can be customized.
- YG Group supports B2B tamper evident tape and label solutions for packaging, logistics, anti-counterfeit, and brand protection needs.
What Is Tamper Evident Tape?
Tamper evident tape is a security sealing tape used for carton sealing and package protection. Once the tape is removed, a hidden security message appears. Common messages include VOID, OPEN VOID, or custom warning text.
This visible mark shows that the package may have been opened. It cannot be restored to its original appearance.
Tamper evident tape is commonly used for:
- Carton sealing
- Warehouse packaging
- E-commerce shipping
- Cross-border logistics
- Retail anti-theft packaging
- Brand protection packaging
- High-value goods transportation
Compared with standard packing tape, tamper evident tape provides both sealing and security. It helps reduce hidden opening, product loss, and package replacement risks.
For more carton sealing materials, visit Packaging Tape Solutions.
What Is a Tamper Evident Label?
A tamper evident label is a security label that leaves a clear trace after removal. In many applications, the adhesive or hidden message transfers to the applied surface. This makes the label difficult to remove, copy, or reuse.
This structure helps prevent the label from being removed and applied to another product. It is useful for anti-transfer, anti-counterfeit, and anti-tamper applications.
Tamper evident labels are often used for small-area security sealing. They are suitable for products, documents, and certificates that need visible protection.
Common applications include:
- Envelope sealing
- Express confidential documents
- Warranty seals
- Certificates
- Valuable item labels
- Product authentication labels
- Electronic product seals
The label surface can also support clear printing. Logos, QR codes, barcodes, serial numbers, and warning text can be added for better product identification.
Explore more Self-Adhesive Label Materials.
What Does VOID Mean on Tamper Evident Tape and Labels?
VOID is a hidden security message used in tamper evident tape and labels. When the tape or label is removed, the VOID message appears on the surface, the film, or both.
This message helps users know that a package, product, or seal may have been opened.
Common VOID effects include:
- VOID message left on the applied surface
- OPEN VOID text shown after removal
- Adhesive residue transferred to the surface
- Film damage after peeling
- Custom security text or pattern
Depending on the structure, the VOID effect may be full-transfer, partial-transfer, or non-transfer.
Common VOID Effect Types
| VOID Effect Type | How It Works | Suitable Applications |
|---|---|---|
| Full-transfer VOID | The hidden message or adhesive fully transfers to the surface after removal | Cartons, documents, warranty seals |
| Partial-transfer VOID | Part of the message transfers to the surface and part remains on the film | Product seals, logistics packaging |
| Non-transfer VOID | The message appears on the film, with little or no residue left on the surface | Surfaces that need cleaner removal |
| Custom VOID message | Uses custom text, logo, or pattern for brand-specific security | Brand protection and private label packaging |
Buyers should choose the structure based on the application surface, inspection method, and residue requirement.
Tamper Evident Tape vs Tamper Evident Label
Tamper evident tape and tamper evident labels have similar security purposes. However, they are used in different packaging areas.
| Item | Tamper Evident Tape | Tamper Evident Label |
|---|---|---|
| Main use | Carton sealing and package security | Small-area sealing and product authentication |
| Best application | Whole-box circulation and logistics | Documents, warranties, certificates, valuables |
| Tamper effect | Shows VOID or OPEN VOID after opening | Leaves residue, trace, or security message |
| Reusability | Cannot be restored after removal | Cannot be transferred or reused easily |
| Custom options | Logo, warning text, color, printed pattern | Logo, QR code, barcode, serial number, shape |
| Typical buyers | Packaging companies, logistics firms, e-commerce sellers | Electronics, document, certificate, and brand owners |
If your goal is to protect a carton during storage or transportation, tamper evident tape is usually the better choice.
If your goal is to protect a document, product opening, warranty area, or small seal point, a tamper evident label is more suitable.
Buyer Decision Table: Which Product Should You Choose?
| Buyer Need | Recommended Product |
|---|---|
| Seal full cartons during shipping | Tamper Evident Tape |
| Protect export packages in warehouses | Tamper Evident Tape |
| Add brand warning text on carton sealing | Tamper Evident Tape |
| Protect confidential envelopes | Tamper Evident Label |
| Prevent label transfer | Tamper Evident Label |
| Seal warranty points | Tamper Evident Label |
| Protect certificates or official files | Tamper Evident Label |
| Add QR code or serial number security | Tamper Evident Label |
| Build anti-counterfeit packaging | Tape or label, depending on the package design |
For large packaging areas, tape is more efficient. For small security points, labels are more flexible.
Key Benefits of Tamper Evident Tape
1. Visible Anti-Tamper Warning
Tamper evident tape shows a clear security mark after removal. This makes unauthorized opening easy to identify.
The visible warning helps reduce disputes during shipping and delivery. It also gives customers a direct way to check package integrity.
2. Better Protection During Logistics
Packages may face many risks during storage and transportation. They may be opened, replaced, or partially emptied.
Tamper evident tape helps make these actions visible. Therefore, it is useful for logistics, warehouses, cross-border shipping, and high-value product delivery.
3. Brand Security Support
Customized tamper evident tape can include brand logos, warning words, or special patterns. This improves brand visibility while adding a security function.
For B2B buyers, it can also support OEM and private label packaging.
4. Non-Reusable Structure
Once removed, tamper evident tape cannot return to its original state. This helps prevent reuse and makes package opening easier to detect.
Key Benefits of Tamper Evident Labels
1. Clear Removal Trace
Tamper evident labels leave a visible trace after peeling. The trace may appear as residue, text, or surface damage.
This helps users quickly identify whether a product, envelope, or document has been opened.
2. Anti-Transfer Protection
A normal label may be removed and placed on another item. A tamper evident label is designed to reduce this risk.
After removal, the label is damaged or leaves a mark. This makes it difficult to transfer without being noticed.
3. Anti-Counterfeit Support
Tamper evident labels can support anti-counterfeit packaging. They help protect certificates, warranty items, valuable goods, and branded products.
When combined with printed codes, serial numbers, or QR codes, they can improve product tracking and authentication.
4. Good Printing Performance
Tamper evident labels can support clear surface printing. This helps keep product information, brand identity, and security warnings readable.
Printed content may include:
- Brand logo
- Product code
- Batch number
- Warranty text
- QR code
- Barcode
- Security warning
Common Applications of Tamper Evident Tape and Labels
Logistics and Warehousing
Tamper evident tape helps protect cartons during storage and transportation. Warehouse staff can quickly check whether a carton has been opened.
This is useful for bulk goods, export shipments, and supply chain management.
E-Commerce Packaging
E-commerce packages pass through many handling points before reaching customers. Tamper evident tape helps show whether a package has been opened during delivery.
It also improves customer confidence when receiving goods.
Cross-Border Shipping
Cross-border packages often pass through several logistics stages. Tamper evident tape helps create a visible security layer for export cartons and long-distance transportation.
This is useful for international sellers, distributors, and brand owners.
Confidential Document Sealing
Tamper evident labels are suitable for envelopes, express confidential documents, files, contracts, and certificates. Once opened, the seal leaves a visible trace.
This helps protect sensitive information during handling and delivery.
Warranty and Repair Seals
Warranty labels help show whether a product has been opened without permission. They are commonly used on electronics, appliances, tools, and spare parts.
This helps brands manage warranty claims more clearly.
Certificates and Valuable Items
Certificates, official files, and valuable goods may need anti-transfer protection. Tamper evident labels help reduce copying, unauthorized removal, and replacement risks.
Electronics Packaging
Electronics products often need warranty control and package security. Tamper evident labels can be applied to product openings, screws, cartons, or warranty points.
They help make unauthorized opening visible.
Cosmetics and Retail Packaging
Cosmetics and retail goods need clean packaging and brand trust. Tamper evident labels can protect product openings and show whether a package has been opened before sale.
Pharmaceutical and Healthcare Packaging
Some healthcare and pharmaceutical packaging applications require visible anti-tamper protection. Tamper evident labels can help support inspection and product integrity checks.
Before use in regulated markets, buyers should confirm material requirements, local rules, and testing standards.
Typical Specifications to Confirm
Before ordering tamper evident tape or labels, buyers should confirm the following specifications.
| Specification | Options to Confirm |
|---|---|
| Product type | Tamper evident tape or tamper evident label |
| Hidden message | VOID, OPEN VOID, custom text, custom logo |
| VOID effect | Full-transfer, partial-transfer, or non-transfer |
| Size | Tape width, tape length, label size, or label shape |
| Material | Film, paper, or customized structure |
| Adhesive | Based on surface and residue requirement |
| Surface | Carton, paper, plastic, metal, glass, coated surface |
| Printing | Logo, warning text, QR code, barcode, serial number |
| Format | Roll, sheet, or die-cut label |
| Core size | Based on machine or manual application needs |
| Packaging | Neutral, OEM, or private label packing |
| Quantity | Sample order, trial order, or bulk order |
Clear specifications help suppliers recommend the correct structure. They also help reduce testing time and quotation errors.
Custom Options for Tamper Evident Tape and Labels
YG Group can support customized tamper evident solutions based on packaging needs, application surface, and brand requirements.
Common custom options include:
- Hidden message: VOID, OPEN VOID, or custom text
- Product size and roll width
- Tape color or label color
- Logo printing
- Warning text printing
- Label shape
- Barcode or QR code printing
- Adhesive performance
- Application surface
- Roll or sheet format
- OEM packaging
- Private label packaging
Before mass production, sample testing is recommended. This helps confirm adhesion, removal trace, printing effect, and performance on the target surface.
How to Choose the Right Tamper Evident Solution
Choosing the right security material depends on the product, surface, and application process.
Before requesting a quotation, buyers should confirm these points:
- Tape or label
Choose tape for carton sealing. Choose labels for small-area sealing or product authentication. - Application surface
Confirm whether the material will be applied to carton, paper, plastic, metal, glass, or coated surfaces. - Security message
Decide whether you need VOID, OPEN VOID, or custom text. - Residue requirement
Confirm whether the VOID message should transfer to the surface, stay on the film, or show partial transfer. - Product size
Confirm tape width, tape length, label size, or label shape. - Printing design
Confirm whether you need a logo, serial number, QR code, barcode, or warning text. - Use environment
Consider temperature, humidity, storage time, and transportation conditions. - Order quantity
Confirm quantity requirements for sampling, trial orders, and bulk production. - Packaging requirements
Confirm roll packaging, carton packing, private label packaging, or other export packing needs.
These details help suppliers recommend the right material and provide a more accurate quotation.
Why Work with YG Group?
YG Group, officially Shanghai Yongguan Adhesive Products Corp., Ltd., is a global adhesive materials manufacturer from China. The company provides adhesive tapes, self-adhesive label materials, protective films, and B2B adhesive solutions for packaging, labeling, logistics, automotive, construction, and industrial applications.
For tamper evident tape and tamper evident labels, YG Group can support both tape and label product lines. This helps customers choose suitable materials for cartons, documents, products, and brand security packaging.
YG Group can support:
- Adhesive tape manufacturing
- Self-adhesive label material supply
- In-house adhesive coating
- Slitting and converting
- Die-cut label support
- Customized printing support
- Sample testing based on application surface
- OEM and private label solutions
- B2B packaging security solutions
- Stable export supply
As a source factory and B2B adhesive solutions provider, YG Group helps customers develop secure packaging materials for logistics, brand protection, product sealing, and anti-counterfeit applications.
Learn more about YG Group
Contact us for samples and quotations: Contact YG Group.
FAQ About Tamper Evident Tape and Labels
What is tamper evident tape used for?
Tamper evident tape is used to seal cartons and packages. Once removed, it leaves a visible VOID, OPEN VOID, or residue mark. This helps users identify whether the package has been opened.
What is a tamper evident label?
A tamper evident label is a security label that shows visible damage, residue, or a hidden message after removal. It helps prevent unauthorized opening, label transfer, and product tampering.
What is the difference between tamper evident tape and security tape?
Tamper evident tape is one type of security tape. Its key function is to leave a visible trace after removal. This trace helps show whether a package has been opened.
What does VOID mean on tape?
VOID means that a hidden security message appears after the tape or label is removed. It shows that the package, seal, or label may have been opened.
Does tamper evident tape leave residue?
Some tamper evident tapes leave a VOID message or adhesive residue on the applied surface. Others may show the message mainly on the film. The exact effect depends on the tape structure and application surface.
Can VOID tape be customized?
Yes. VOID tape can be customized with different hidden messages, logos, warning text, colors, and printed patterns.
Where are tamper evident labels used?
Tamper evident labels are used on envelopes, confidential documents, warranty seals, certificates, electronics, valuable goods, and branded products.
Can tamper evident labels prevent product replacement?
Tamper evident labels help make unauthorized opening and replacement visible. This supports inspection, claim handling, and brand protection.
What surfaces can tamper evident labels stick to?
They can be designed for paper, carton, plastic, glass, metal, and coated surfaces. The right adhesive should be selected based on the application surface.
Are tamper evident labels reusable?
No. Tamper evident labels are designed to show visible traces after removal. Once removed, they cannot be restored like ordinary labels.
Should I test samples before bulk orders?
Yes. Sample testing is recommended before bulk orders. It helps confirm adhesion, VOID effect, printing quality, and removal performance on the final surface.
Conclusion
Tamper evident tape and tamper evident labels help protect packaging, documents, and valuable goods from unauthorized opening. They provide visible VOID marks, clear removal traces, anti-transfer protection, and better package security.
For carton sealing and logistics packaging, tamper evident tape is a practical choice. For documents, warranty seals, certificates, and product authentication, tamper evident labels offer flexible security protection.
Need custom tamper evident tape or VOID security labels for your packaging? Send us your application surface, required size, VOID message, printing design, and order quantity. YG Group will recommend a suitable tamper evident tape or label structure and provide samples for testing.
