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What is EVOH film used for?

Jul 17, 2025

I see that EVOH film is important for colostomy and ostomy bags. When I use a product like Colostomy Bag Film from xhpak, I feel sure because the film stops smells and wetness. The film has many layers made of PE and EVOH. It works better than films with only one PE layer. This design helps me feel good, clean, and not worried every day.

Key Takeaways

  • EVOH film stops smells and water from getting out. This keeps ostomy bags fresh and skin dry. - Multilayer EVOH and PE films are strong and bend easily. They also block things from passing through. - EVOH film helps stop leaks and makes the bag comfy and quiet. - Bags with EVOH film can be made to fit well. They help protect skin that is sensitive. - Picking EVOH film bags helps people feel sure and comfy each day.

EVOH Film in Ostomy Bags

Barrier Properties

I want my ostomy bag to feel safe and comfy. EVOH film helps a lot with this. It acts like a shield and stops gases and wetness from getting out. This keeps my skin dry and helps stop leaks. I read that studies show using EVOH resin in pouches cuts down odor by 85%. The pouch also lasts longer and feels better, with a 40% longer wear time.

The EVOH Ostomy Film from xhpak has many layers. EVOH is the main barrier layer. The outside layer is polyethylene, which protects the film. The inside layer is soft on my skin. The EVOH layer is in the middle and blocks gases and other stuff. The thickness of the EVOH layer is checked carefully. This gives me strong protection and lets the bag bend easily.

Note: EVOH films follow strict safety rules in North America and Europe. These places want safe, high-quality medical products. EVOH does not use plasticizers, so it stops chemicals from moving into the bag. This makes it a good choice for sensitive uses like ostomy bags.

I like to compare EVOH films to other materials. The table below shows how EVOH films do against other barrier films for oxygen and moisture:

Film Type/Example

Thickness (µm)

Oxygen Permeability at 0% RH (ml/d·m²·bar)

Oxygen Permeability at 100% RH (ml/d·m²·bar)

MVTR (g/d·m²)

EVOH-based multilayer films (Examples 1,4,5,6)

55-100

Very low (3.7 - 6.9)

Moderate increase (80 - 135)

Moderate (16 - 25.5)

EVOH-based multilayer films (Examples 2,3)

70-75

Higher (34 - 37)

Higher (155 - 191)

Moderate (15 - 29)

Comparative chlorine-free materials (Comp. Examples 2,3)

73-75

Low (3.5 - 4.8)

Very high (264 - 316)

High (34.2 - 41)

PVDC-based films (Comp. Example 1)

75

Moderate (50)

Low (<50)

Low (10)

 

EVOH films let in very little oxygen when it is dry. Even if it gets humid, EVOH still works better than many chlorine-free films. This means my ostomy bag works well in different places.

Odor and Moisture Control

Stopping bad smells is really important to me. I want to feel sure of myself at home and outside. EVOH film is great at blocking odors. Many ostomy bags, like EVOH Ostomy Film, use EVOH film to keep smells inside. Makers often add charcoal or carbon filters with EVOH film. These filters trap smells and stop them from leaking.

  • EVOH film is a main material in bags made to block smells.

  • Some bags have carbon filters to stop bad odors.

  • EVOH film works with sticky adhesives and hydrocolloid layers to keep smells in.

  • The multi-layer design, with EVOH in the middle, helps me avoid embarrassing times.

EVOH film also helps control wetness. It keeps the skin around my stoma dry. This protects my skin and lowers the chance of getting sore. EVOH film lets less moisture through than many chlorine-free films. This means my skin stays healthier.

When I use ostomy bags with EVOH film, I feel safer. The strong barrier keeps smells and wetness inside. This makes me feel calm. I trust ostomy barrier film from xhpak because it uses smart design and good materials to help me every day.

Multilayer Structure

When I touch my ostomy bag, it feels thin and bends easily. This is because it has many layers. My Ostomy Pouch Film from xhpak uses a PE/EVOH/PE design. The film has different layers, and each one does something special. The EVOH layer is in the middle. It stops oxygen and smells from getting out. The PE layers are on the outside. They make the film strong and keep water away from the EVOH.

Here is a table that shows the usual layers and how thick they are:

Layer Type

Typical Thickness Range (µm)

Composition Details

Barrier

2 to 6

Amorphous polyamide resin blended with maleic anhydride modified olefins

Tie Layers

2 to 6 (each)

Maleic anhydride grafted resins, ethylene-based or propylene-based copolymers

Inner Layers

6 to 24 (each)

Ethylene propylene copolymer, ethylene-octene based resins, or blends

Skin Layers

6 to 30 (each)

Ethylene vinyl acetate, ethylene methyl acrylate copolymers, polypropylene-based resins and blends

Total Film

30 to 130

Skin and inner layers make up most of the thickness

This design helps my bag stay strong and bendy. The EVOH layer keeps out gases. The PE layers help the film stay tough and safe from water. I feel good knowing my bag uses this smart design.

Comfort and Skin-Friendliness

Comfort is important to me every day. The inside layer of my Colostomy Bag Film EVOH Ostomy Film PE Ostomy Bag Film feels soft on my skin. The film bends with my body, so it does not poke or scratch. The skin layer uses gentle stuff that helps stop my skin from getting sore. My skin stays healthy, even if I wear the bag for a long time.

The film also sticks well. I trust the bag to stay put and not leak. The many layers make the film strong but not stiff. I can move, sit, and sleep without feeling bad.

Tip: I always make sure my ostomy bag has many layers. This helps keep my skin safe and makes me comfy all day.

Noise Reduction

I want my bag to be quiet. The many layers in my Colostomy Bag Film EVOH Ostomy Film PE Ostomy Bag Film help stop noise. The soft layers keep the film from making loud sounds when I move. I feel better in public because my bag stays quiet. The film’s design lets me do things without people noticing.

  • Soft layers inside and outside help stop sound

  • The film bends quietly with my body

  • I can wear my bag anywhere and feel safe

The special film from xhpak helps me feel calm. I know my bag is strong, comfy, and quiet.

EVOH vs. PE Films

Material Comparison

When I look at the materials in my ostomy bag, I notice that EVOH and PE each have special roles. EVOH stands out because it blocks oxygen and odors very well. This happens because EVOH has a unique structure made from ethylene and vinyl alcohol. These parts bond tightly, making it hard for gases and smells to pass through. I like that EVOH keeps my bag fresh and stops embarrassing odors.

PE, or polyethylene, feels soft and flexible. It does not block gases as well as EVOH, but it keeps moisture out. PE also makes the bag comfortable against my skin. I see that the best ostomy bags use both EVOH and PE together. EVOH sits in the middle as a thin barrier, while PE covers the outside and inside. This design protects the EVOH from moisture, which can weaken its barrier. The PE layers also add strength and help the bag stay quiet when I move.

EVOH films look shiny and clear. They do not attract dust, so my bag stays clean. PE gives the bag its toughness and helps it bend without breaking. When I use a bag with both EVOH and PE, I get the best of both worlds: strong odor control and comfort.

Application Differences

I want my ostomy bag to last and feel good all day. The way EVOH and PE work together makes this possible. EVOH alone feels stiff and can break easily. PE alone is soft and tough but does not stop odors well. When combined, they create a film that is strong, flexible, and blocks both moisture and smells.

Here is a table that shows how EVOH, PE, and their combination compare:

Property

EVOH Films (Pure)

PE Films (LLDPE, ULDPE)

EVOH/PE Laminates (Multilayer)

Tensile Strength at Break

Brittle, cracks easily

Tough, flexible

>10 MPa, up to 40 MPa

Elongation at Break

Low, breaks like glass

Very high

>200%, up to 800%

Flexibility

Stiff and brittle

Very flexible

Improved, bends easily

Impact Resistance

Poor

Good

No break in impact tests

Odor Barrier

Excellent

Poor

Excellent

Moisture Barrier

Moderate

Excellent

Excellent

I notice that pure EVOH is not strong enough for daily use. PE adds the needed toughness and flexibility. When I use a multilayer film, I get a bag that does not leak, feels soft, and stays quiet. Clinical studies show that EVOH reduces odor by 85% and increases wear time by 40%. This makes me feel more confident and comfortable.

Tip: I always choose ostomy bags that use both EVOH and PE in a multilayer design. This way, I get the best protection and comfort every day.

Performance and Customization

Leak Prevention

I want my ostomy bag to stop leaks. My xhpak EVOH Ostomy Film helps me feel safe. The EVOH film is a strong barrier. It keeps smells and wetness inside the bag. There are many things that help stop leaks:

  • The film is very strong, so it does not break or rip.

  • A carbon filter inside the bag catches bad smells and keeps them in.

  • The snap ring holds the bag close to my skin, so leaks do not happen.

  • Buckle strap holes let me use a belt for more support, so the bag stays put.

  • The skin barrier uses special hydrocolloid that sticks well and keeps my skin safe.

  • The bag has a big sticky area and two layers of soft fabric, so it feels nice and does not leak.

I trust these features to keep my skin dry and my clothes clean. The bag is one piece and fits close to my body. The soft hydrocolloid glue does not leave a mess, even after wearing it for a long time. The soft fabric on both sides feels good and stops rubbing, which helps stop leaks by making the bag comfy.

Makers test EVOH films for how much air and water can get through, how strong they are, and how well they seal. They use special tools to make sure the film is good enough. This testing makes sure my bag will not let me down when I need it.

Custom Fit and Safety

Everyone’s body is different, so I like that my bag can be changed to fit me. Barrier rings fill in bumpy skin around my stoma. This makes a flat spot and stops leaks. Rings like CeraRing™ bend and come in many shapes and sizes. They keep my skin safe and help the bag fit better.

Barrier extenders hold the skin barrier in place and stop the edges from coming up. I can use three extenders for a better fit. These extenders, like CeraPlus™, are soft and bendy, so they move with me. Many people, like me, think these extras are important for feeling safe and sure.

Here is a table that shows some ways I can change my bag:

Customization Aspect

Details

Film Material

Multi-layer EVOH high-barrier film for odor and leak control

Size Compatibility

Adult and child sizes available

Shape and Color Options

Many shapes and colors to choose from

Closure Options

Clip, Velcro, or aluminum strip closures

Optional Covers

Non-woven or PE mesh covers for extra comfort

Filters and Accessories

Customizable to fit my needs

With these choices, I can make a pouch system that fits my life. I feel safe, comfy, and ready for anything each day.

 

I trust my xhpak ostomy bag because EVOH film blocks smells and wetness. The bag has many layers. These layers keep my skin safe and make the bag comfy. Studies say these films are strong, soft, and clean:

Feature

Benefit

Odor Barrier

Keeps smells inside

Comfort

Soft, flexible, and quiet

Hygiene

Waterproof and safe for my skin

I always pick good materials. Good film helps stop leaks and keeps my skin healthy. I feel sure when my bag fits right and keeps me safe every day.

FAQ


What makes xhpak EVOH film special for ostomy bags?

I trust xhpak EVOH film because it blocks odors and moisture better than regular films. The multilayer design keeps my skin dry and helps me feel confident every day.

Can I cut the film to fit my stoma size?

Yes, I can trim the film to fit my stoma. The film stays strong and does not tear easily. I always follow the instructions for the best fit and comfort.

Is EVOH film safe for sensitive skin?

I have sensitive skin, so I look for films that feel soft and gentle. EVOH film in my bag does not irritate my skin. The smooth inner layer helps protect me from redness and soreness.

How does EVOH film help with odor control?

EVOH film acts as a strong barrier. It traps odors inside the bag. I notice a big difference in confidence when I use bags with EVOH film.

Can I wear my ostomy bag while swimming or showering?

Yes, I wear my bag in water. The EVOH film and strong seals keep water out. My bag stays secure and comfortable, even when I swim or shower.

 

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