This packaging material is designed to regulate internal moisture by blending a desiccant into a polyolefin-based film resin, allowing it to absorb moisture both inside the package and from its contents. For example, some pharmaceuticals are highly hygroscopic, absorbing moisture from the air and degrading over time, which leads to reduced efficacy. "DNP's Moisture-Absorbing Laminate" addresses this issue with high moisture absorption performance and flexible packaging design tailored to the specific needs of the contents.

• What is "DNP Moisture Absorbing Laminate"?
• Product Features
• Moisture Absorption Performance
• Main Application Fields & Uses
• Film Composition Examples
• Adoption Cases
• FAQ collection

This packaging material reduces the deterioration of pharmaceutical and food contents due to moisture, as well as malfunctions of medical and precision devices caused by humidity.

By absorbing moisture through a film blended with a desiccant, this packaging material can regulate internal humidity without the need for additional desiccant silica sachet, making it an effective moisture control solution for pharmaceuticals, food products, and medical devices.

While conventional desiccants provide localized moisture absorption, this film efficiently absorbs moisture over its entire surface thanks to the moisture-absorbing layer.

To eliminate a risk of consumers accidentally ingesting desiccant silica sachet.

Even small pouch that can not enclose desiccant silica sachet can benefit from moisture control. Additionally, since separate desiccant silica sachet is not required, the overall packaging size can be reduced.

By not using desiccants, the insertion process, its inventory management, and inspection procedures are reduced, leading to increased efficiency in the production process.

Absorption capacity

The moisture absorption capacity over time was measured for two types: 3.5g/m² and 6.0g/m². The graph indicates that once moisture is absorbed, it is not released again and maintaining a stable environment inside the package.

You can choose from the following two types based on the contents' requirements:

Moisture Absorption: 3.5g/m² Type
Moisture Absorption: 6.0g/m² Type
※Actual figure only, not the guarantee basis.

DNP's moisture absorbing laminate is designed with moisture protection and absorption properties, helping to prevent the deterioration of packed contents.（e.g. granule, tablet, oral thin film）

Electronic components in medical and precision devices can degrade or malfunction due to humidity. DNP’s packaging helps prevent rust and failures during international transportation.

Diagnostic devices are sensitive to moisture and moisture may lead it to inaccurate result. Using moisture absorbing laminate helps to keep the pouch inside as dry as possible.

PET / Adhesive / Aluminum Foil / Adhesive / Moisture-Absorbing Layer

Aluminum Foil
Transparent Vapor Deposition
Aluminum Vapor Deposition

For sensor components that are highly sensitive to humidity, an inner-layer moisture-absorbing function has been adopted.

We have compiled frequently asked questions from our customers along with our responses.