Lamellar curtain
A slat curtain (also slat system , vertiso , slat blinds , vertical slats or vertical system ) is a protective device that consists of vertical slats that are suspended from a top rail . In office and living spaces, it serves as internal sun protection on the window . In the manufacturing industry, in trade as well as in agriculture and animal husbandry, the slat curtain is used to separate rooms.
Its individual lamellas can usually be rotated around their vertical axis and pulled together to form a package along the rail . In this way, the incidence of light and the view to the outside can be flexibly regulated. Because of this property, slats are often used in offices to create good conditions for screen work.
The main difference to the blind is that the slats are arranged vertically and not horizontally. With this arrangement, the lamellar curtain hardly offers dust any surface to adhere to. This is one of the reasons why it is often used in the health sector.
Louvre curtains can be combined and automated without any gaps. They are therefore particularly used for shading large areas.
materials
The slats are made of textile material, plastic, aluminum, wood or natural fiber mats. Common widths are 89 and 127 mm. But widths of 63, 100 and 250 mm are also available in stores.
Textile fabric strips are usually very hard equipped to ensure a smooth event.
The fabrics can be coated with aluminum or mother-of-pearl in order to ensure heat reflection and translucency at the same time .
Louvre systems can also be used for darkening. For this purpose, coated fabrics are used in combination with a top rail that turns the slats 190 ° and thus presses them firmly together.
In addition, slats are offered that have certain soundproofing properties or an antibacterial finish so that pathogens cannot adhere to the textile slats .
The textile slats are weighted down at the bottom so that they hang smoothly and straight, and often connected with chains at the bottom to prevent twisting.
Quality criteria
Carriage
- Wear resistance
- Storage type (e.g. role)
- Material of the slat hook and holder (e.g. transparent, break-proof plastic or steel)
- End car stopper with trigger for unhooking the lamella package
- Possibility to easily replace or renew defective lamella hooks
Turning shaft
- Material (e.g. extruded aluminum)
- Torsion-free
- Texture of the shaft support
Textile slat
- Weight
- Flammability according to DIN 4102
- Suitable for damp rooms
- Light transmission
- Reflectivity
- Light absorption rate
- Suitability for cleaning
- Special coatings
service
By moving the slats along the top rail, the slats can be moved (= opened and closed). They can be parked on one or both sides. In some cases, the slats are also parked in the middle of the system.
Most common are systems that are moved with a laterally rotating endless cord. The slats are rotated by pulling on a ball chain.
Alternative operating concepts are the process with a throwing rod and turning with a rod control, as well as so-called mono-controls, in which both the process and the turning take place with the same endless cord.
to form
The standard shape of the slat system is rectangular.
There are so-called slope systems for sloping ceilings . Please note that the slats can only be parked on the longer side, as otherwise the long individual slats will lie on the floor.
The usually straight top rail can be bent for bay windows and curves around the vertical as well as the transverse axis. Spiral systems in spiral form are also possible.
They can even be used for roof windows. For this purpose, an upper and a lower rail are used, between which the slats are braced (ceiling systems).