Leading Tamper Proof Bag Manufacturers

In today’s world, the security of personal belongings and valuables has become a major concern. Tampering with bags during transit or storage is a common occurrence, and as such, tamper-evident and tamper-proof bags have become increasingly popular. Read More…

Tamper Proof Bags In today's world, the security of personal belongings and valuables has become a major concern. Tampering with bags during transit or storage is a common occurrence, and as such, tamper-evident and tamper-proof bags have become increasingly popular.

Action Bags is the industry leader in reclosable zip and custom packaging for over 40 years. We stock over 500 different plastic bag styles to meet our customer’s needs across all industries regardless of its use. We are your go-to product experts for any custom bags to incorporate branding, sizes, or product features that you do not see in our stock offering. Contact our excellent customer...

Action Bags $$$

Custom Poly Packaging provides unique, private label or personalized plastic bags. We are primarily a wholesale source for custom plastic bags and flexible packaging. If you are looking for a "green" packaging solution, we manufacture ecologically safe biodegradable LDPE packaging, made right here in the United States of America. Give us a call today to find out more.

Custom Poly Packaging $$$

Diversified Plastics & Packaging supplies plastic bags for many industries. We deliver prompt service, competitive prices & unparalleled variety in flexible packaging. Fast quotes, free samples when needed, custom made poly bags and stock items of any color and size. Industrial, textile, medical, small & large flexible packaging markets. Visit our website today.

Diversified Plastics & Packaging, Inc. $$$

Champion Plastics is an extruder of all bags in every size, gauge and color for any need. Industries served include food, pharmaceutical, chemical, industrial, waste removal, service and retail. We are ISO 9001:2008 certified and produce thousands of bags daily in widths from 2” to 200” and in gauges of .00065 to .010 which can be printed in up to 10 color combinations. For additional...

Champion Plastics $$$

We’re NUTS about plastic bags! Buckeye Bag offers incredibly low prices on a wide selection of commercial quantity industrial plastic bags. Order securely from our online stock product catalog or request a fast, custom quote.

The Buckeye Bag Company $$$

Plastic bags and sheeting custom made for industrial, retail and promotional applications. Materials include LDPE, LLDPE, HDPE, and polypropylene. Custom printing up to 6 colors. Bagbarn.com manufactures products that include bags on rolls, wickets, cut bags, retail bags and more. Promotional bags are available for trade shows & other events as well as environment friendly biodegradable bags.

bagbarn.com $$$

PolyPro has been a source for custom poly bags and poly products for over 90 years! Your source for custom or unique poly needs made in the USA! Family owned and operated with 90 years in the industry will speak for itself!

Short runs custom print are our specialty - Certificate of Compliance supplied!


Polypro Packaging $$$

Family-owned for over 75 years, we've been known for our outstanding customer service, a reputation we've earned by always treating customers the way we would like to be treated.

Associated Bag $$$
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placeholder image Action Bags Custom Poly Packaging Diversified Plastics & Packaging, Inc. Champion Plastics The Buckeye Bag Company bagbarn.com Polypro Packaging Associated Bag

These bags are designed to prevent unauthorized access and tampering, thereby ensuring the safety and security of the contents inside. In this article, we will discuss the various types of tamper-evident and tamper-proof bags available in the market.

Types of Tamper Proof Bags:

Tamper-Evident Bags

Tamper-evident bags are designed to show evidence of any unauthorized access to the contents of the bag. They come in various forms, such as envelopes, pouches, or plastic bags, and they are made using a range of materials, including paper, polyethylene, or polypropylene. These bags usually have a tamper-evident closure system, such as a seal or adhesive tape, which leaves a residue or mark if the bag has been opened. Tamper-evident bags are commonly used to transport cash, confidential documents, and pharmaceuticals.

Tamper-Proof Bags

Tamper-proof bags are designed to prevent unauthorized access to the contents of the bag. They are usually made from high-strength materials, such as heavy-duty polyethylene or polypropylene, and feature a locking system that requires a key or code to open. Tamper-proof bags are commonly used for transporting high-value items, such as jewelry, electronic devices, and important documents. These bags can also be used to store evidence or for forensic purposes.

Clear Tamper-Evident Bags

Clear tamper-evident bags are similar to tamper-evident bags, but they are made from transparent materials, such as polyethylene or polypropylene. These bags allow the contents to be easily identified, and the tamper-evident closure system provides a visible indication of any unauthorized access. Clear tamper-evident bags are commonly used for transporting medical specimens, laboratory samples, and other sensitive items that require proper handling.

Security Deposit Bags

Security deposit bags are designed for the secure transportation of cash and checks. These bags feature a tamper-evident closure system and can be customized with unique serial numbers, barcodes, and other security features to provide a high level of protection against theft and tampering.

Evidence Bags

Evidence bags are designed to preserve the integrity of evidence collected at a crime scene. These bags are made from strong, tear-resistant materials, and feature a tamper-evident closure system to ensure the chain of custody is maintained. Evidence bags can also be customized with unique serial numbers and barcodes to ensure proper tracking and documentation.

Materials Used to Make Tamper Proof Bags

Tamper proof bags are made from various materials, depending on the specific needs and requirements of different industries. Here are some of the most common materials used to make tamper proof bags:

  1. Polyethylene - Polyethylene is a durable and lightweight material that is commonly used to make tamper proof bags. It is resistant to moisture and tearing, making it an ideal option for industries that transport or store valuable goods.
  2. Tyvek - Tyvek is a synthetic material that is lightweight, tear-resistant, and water-resistant. It is commonly used to make tamper proof bags for the pharmaceutical and medical industries.
  3. Nylon - Nylon is a strong and durable material that is commonly used to make tamper proof bags for the financial industry. It is tear-resistant and has a high melting point, making it an ideal option for transporting valuable items.
  4. Paper - Paper is a lightweight and cost-effective material that is commonly used to make tamper proof bags for the food industry. These bags are designed to prevent any tampering or contamination of food products during transportation and storage.

Design Considerations for Custom Tamper Proof Bags

Material Selection

The material you choose for your tamper-proof bags is crucial, as it will determine the durability, security, and overall quality of the bags. You should choose materials that are tear-resistant, puncture-resistant, and difficult to cut or penetrate. Polyethylene and polypropylene are popular options for tamper-proof bags, as they are both strong and lightweight.

Closure System

The closure system of your tamper-proof bag is critical to its security. There are several options available, such as zippered closures, adhesive seals, or locking mechanisms, depending on your specific needs. You should choose a closure system that provides a clear indication of tampering if someone tries to open the bag without authorization.

Custom Printing

Custom printing is an excellent way to enhance the security of your tamper-proof bags. By printing your company logo, name, and other unique identifiers on the bags, you can make it more difficult for unauthorized persons to replicate your bags. Additionally, custom printing can help to identify the contents of the bag, which can be useful in certain industries, such as medical and pharmaceuticals.

Size and Shape

The size and shape of your tamper-proof bags should be tailored to the contents you intend to store or transport. Oversized bags can be difficult to handle, while undersized bags can be easily compromised. You should also consider the weight of the contents, as heavier items require stronger bags.


Finally, you should ensure that your custom tamper-proof bags comply with any relevant industry or regulatory standards. This can include requirements for labeling, material selection, or security features. Compliance not only ensures that your bags are effective and efficient, but it also reduces the risk of legal issues down the road.

In conclusion, tamper-evident and tamper-proof bags are essential tools for maintaining the security and integrity of valuable and sensitive items during transport or storage. With a range of options available, including tamper-evident bags, tamper-proof bags, clear tamper-evident bags, security deposit bags, and evidence bags, it is possible to find a solution that meets the specific needs of any individual or organization.

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