What is Apertured Film?

Apertured film is a lightweight, nonwoven material made from a unique extrusion, embossing and orientation process. By varying the process parameters, SWM manufactures a wide variety of Delnet™ Apertured Film materials that can be created with characteristics to meet many market requirements. As versatile apertured films, Delnet can be used alone or laminated to different substrates depending on your specific requirements. 

Medical Applications

In combination with our engineered composites, Delnet can be found in finger bandages, surgical gowns, drapes, and masks, teeth whitening strips, hydrogel scrims, nasal strip support materials, and electrode support products. For example, Delnet can provide a flexible surface layer for medical facemasks or an “ouchless” barrier in finger bandage pads.

Filtration Applications

Our Delnet provide support across several air and liquid filtration applications such as microelectronics, dust release layers and filter support products. They typically help support and separate delicate media, while offering controlled porosity that enhances even, turbulent flow in tight pleat packs while improving filter efficiency. Delnet is also used as pleat support for cartridge filters.

Industrial Applications

Extremely thin and lightweight is an ideal material for food processing, packaging, and textile applications. From citrus packaging to outdoor products, apparel reinforcement and fabric bonding. Delnet apertured films offer a wide range of pore sizes and patterns for diverse performance requirements.

Agriculture Applications

Delnet can be utilized for pollination bag applications on numerous plants and crops. Manufactured out of high-density polyethylene, our Delnet bags are strong and allow sun to penetrate while resisting seasonal weather and are very easy to use. Simply position it over the developing flower and tie at the bottom. When timing is appropriate for pollination, the bags may be easily slit open, with scissors or a penknife. Bags are available in multiple sizes and can be heat sealed or sewn. After manual pollination, the bag is closed using either a twist tie or paperclip. The Delnet materials allow water, air and sunlight to pass, while preventing natural insect pollination. Once seeds are ready to harvest the stalk may be cut, the Delnet bags providing a handy carrier, until the seeds can be harvested. Stock sizes are: 10” x 12”,16” x 18” and 18” x 20”. Other size bags from 2.75” x 4” up to  71” x 72” are available.

Food Production Applications

By varying the Delnet process parameters, a wide variety of materials can be created with characteristics to meet packaging requirements. For example, Delnet can be used in boil-in-bag mesh and cheese processing net.