“eterno” is a wallpaper made of natural materials.
The main component is pulp, and polyester is added to the fleece for wallpaper, which is factory-painted with water-based paint.The Japanese factory produces the product in bulk. Considering the environment, it is FSC® (Forest Stewardship Council) certified.
The “eterno” series lineup includes three types of fleece: “Lemilliur” , “ECO FLEECE” and “shikkui fleece” and we are seeing its popularity grow, not only in Japan, but throughout the world.
“eterno” boasts high moisture absorption and desorption thus reducing condensation and mold formation.
It can reduce the deterioration of buildings due to condensation and health hazards caused by mold.
Geographical locations such as Okinawa (Japan) and Thailand, well known for their high temperatures and humidity, have seen successful applications of our products.
“eterno” has higher moisture wicking properties than vinyl cloth.
ECO FLEECE and shikkui fleece were attached to plasterboard and the moisture absorption and desorption properties were compared.
ECO FLEECE and shikkui fleece were 105g / ㎡, while normal vinyl cloth absorbed 43g / ㎡.
The amount of moisture released was 16 g / ㎡ with vinyl cloth, while it was 77 g / ㎡ for ECO FLEECE and shikkui fleece.
“eterno” is a wallpaper with high strength, moisture resistance and long-lasting use.
It can be repainted more than 10 times with water-based paints.
In fact, wallpapers made from similar materials (*pre-eterno brand) are still in use today and have been repainted a number of times over a 30-40 year period.
“eterno” has high tensile strength. This makes it resistant to tearing when the wall surface is displaced or moved by cracks or distortions in the building.
The tensile strength of ECO FLEECE was compared with vinyl cloth.
The tensile strength of vinyl cloth was 46 N / 15 mm in the vertical direction and 31.4 N / 15 mm in the horizontal direction, while the tensile strength of ECO FLEECE was 133 N / 15 mm in the vertical direction and 76.4 N / 15 mm in the horizontal direction. It was.
[Measuring method] JIS P 8113. The tensile strength of paper and paperboard is measured using a constant-speed extension tester. In-house research
“eterno” has low elongation in water and is less prone to stretching and shrinking due to moisture. Therefore, unlike vinyl cloth, it is less likely to expand or contract due to moisture and less likely to move or peel off from the wall caused by expansion or contraction.
“eterno” is finished with non-glossy paint, giving it a matte texture. Light reflects off it lightly therefore creating beautiful spaces when used with indirect lighting.
Case Studies of ECO FLEECE in Japan
eterno is a wallpaper made of natural materials.
It is an Eco-friendly and highly safe wallpaper.
You can use it with confidence from children to the elderly.
“eco-fleece”, “bio-fleece” and “shikkui fleece” all part of the “eterno” series, are FSC Certified*. This is a rare and specialized certification in Japan.
“eterno” can be painted over with a water-based paint. This reduces waste as there is no need to remove the existing wallpaper when renovating.
“eterno”, unlike vinyl cloth, does not use plasticizers. Plasticizers contain endocrine disruptors, which can cause sick building syndrome. Fleece wallpaper without plasticizer does not emit VOCs and therefore does not pose a risk of sick building syndrome.
In Japan, F☆☆☆☆, which is the highest grade of the four levels set by JIS (Japanese Industrial Standard) and JAS(Japanese Agricultural Standard) according to the amount of formaldehyde emission, has been certified.
“eterno” wallpaper is a non-combustible material certified by Japan’s Ministry of Land, Infrastructure, Transport and Tourism.
“eterno” is a product that combines the beauty of the finish with ease of installation. For example, it can be applied to a 50-square-meter concrete substrate in about the same amount of time as a paint finish. The finish is more aesthetically pleasing and more durable than paint.
Estimated working hours for finishing on a concrete substrate of 50 square meters
|finishing touches||Operations Engineering||Working days|
Not recommended in Japan due to incompatibility with lye, moisture, and construction equipment.
|Uncoated wallpaper and painted finish||Base + putty treatment + drying + sanding + gluing (wallpaper) + construction||2 days|
|Painting||Base + Putty + Drying + Sanding + Painting||1 day|
|eterno||Base + putty treatment + drying + sanding + gluing (wallpaper) + construction||1 day|
Light stains on fleece wallpaper can be scrubbed off with a sponge.
Fleece wallpaper can also be repainted over the finish. Stains that cannot be removed can be repainted with repair paint.
Small dents can also be removed by moistening the pulp and drying it with a hairdryer. This will expand the pulp and make it less noticeable. Partial patchwork repair is also possible.
“shikkui fleece” is one of the products of “eterno”. It is a fleece wallpaper coated with plaster paint.
In addition to the aforementioned features of fleece wallpaper,
it is a highly functional wallpaper with the functions of plaster: deodorant, anti-virus, antibacterial, VOC absorption and CO2 absorption.
Adsorbs ammonia, hydrogen sulfide and methylcaptan, the main causes of unpleasant odors.
It is also a countermeasure against bacteria, germs, mold, and household odors such as the smell of cigarettes and pets.
Strong alkaline calcium hydroxide inhibits the growth and proliferation of bacteria and viruses.
An antibacterial activity value of 2.0 or higher, as determined by the test method specified in JIS Z 2801, is considered to be effective.
|Sample||Escherichia coli||Staphylococcus aureus|
|live bacteria count||relative value||Antibacterial activity value||live bacteria count||relative value||Antibacterial activity value|
Adsorbs VOCs such as formaldehyde, a causative agent of sick house syndrome.
It can be effective in spaces with children, elderly people and pets with low resistance.
It is expected to lower the carbon dioxide concentration in the room and reduce its effect on the body.
Vinyl cloth is a paper-lined wallpaper made of sheets of polyvinyl chloride resin (PVC). Since the backing is paper, the strength is low and therefore it is not able to cope with building structure movements thus making it more prone to cracks and tears.
A plasticizer is added to vinyl cloth to make the PVC resin (PVC) flexible, but the plasticizer is released when it is exposed to ultraviolet light. During this process, the flexibility is lost from the PVC. As a result, the vinyl cloth cures in five to six years and the joints in the cloth open up. PVC that has been deposited with the plasticizer will also undergo degradation and yellowing. In this respect, fleece wallpaper without the plasticizer is less likely to deteriorate.
Vinyl cloth that has deteriorated
The difference in moisture absorption and desorption between “eterno” and vinyl cloth is described above. Vinyl cloth has no moisture absorption and desorption properties due to the vinyl coating on its surface, it is also less susceptible to moisture and more prone to condensation and mildew.
Image of water vapor transfer
“eterno” has high moisture absorption properties and is less prone to condensation than vinyl cloth.
When the temperature inside the equipment was 40.2°C, the humidity was 56%.
There was no condensation inside the equipment.
When the temperature inside the equipment was 37.8°C, the humidity was 90%.
Condensation was found inside the equipment.
In addition, if vinyl cloth is applied directly to a concrete wall, mold and peeling will occur within 3 to 5 years (estimate/prospect). This is because concrete walls tend to trap moisture on the surface, while vinyl cloth does not absorb and desorb moisture, and moisture accumulates between the concrete and the wallpaper.
Vinyl cloth has a high environmental impact because it has to be replaced every time it is remodeled and produces waste.
Discarded vinyl cloth
In the city of Berlin, Germany, the Administrative Regulations on Procurement and the Environment (VwVBU) prohibit the use of PVC products, including wallpaper, in public buildings and public housing construction.references：
Fleece wallpaper can be repainted over the top, so there is no waste in the remodeling process.
Vinyl cloths are typically made with a shiny finish. In contrast, “eterno” uses a non-glossy water-based paint, providing a matte finish without shine. “eterno”, due to its finish, does not strongly reflect light and can create a soft space.
Concrete develops cracks (cracks) due to building movement and distortion. When painting directly onto concrete, if cracks appear in the substrate, the finish will crack as well.
Concrete painted wall with cracks in it
The high strength fleece “eterno” does not follow the cracks and keeps a good appearance.
Many paints that are applied to concrete are generally glossy paints that are available in the market.
This often results in a shiny surface finish. “eterno” is a non-glossy, water-based paint that provides a non-shiny (matte) finish.