Pleated curtains (plisse) have got their name because of pleated form of fabric (concertina design) they are made of. The French word “plisse” is translated as “parallel pleats”. It is commonly believed that pleated cloth was invented by the ancient Egyptians who have used pleated cloth almost 1500 years B.C.
In the end of the XXth century in Germany people began to use pleated cloth to protect winter gardens from the sunlight. In comparison with other curtains, pleated blinds' construction has smaller weight, is more compact and it allows to avoid cloth sagging, this feature is especially required for the attic ceiling windows. This kind of blinds can be used by decoration of non-standard windows of different shapes.
Pleated blinds are curtains made of pleated cloth, fixed on the special aluminum profile (rail) on two sides and holding on the window by two guide strings stretched between rails and passing through all folds. Thus the curtain cloth can be dropped down to cover the whole window or it can be folded compactly to 4-5cm stacking height making the window casement completely open. As well as it could be partly folded and fixed on the required level to adjust the light in the room.
Types of pleated blinds' movement:
- fixed upper rail, movable bottom rail (picture 1);
- fixed bottom rail, movable upper rail (picture 2);
- both upper and bottom rails are moveable (picture 3).
|Pic. 1.||Pic. 2.||Pic. 3.|
Pleated blinds “Day-night” consist of two kinds of pleated cloth (one is solid, the other is semi-transparent) and 3 or 4 rails. The construction of the blind allows to make the window covered/open completely or partly. Thus there could be two variants of the completely covered window: by semi-transparent fabric and by the solid one. The first variant is convenient at the day-time when the room should stay lit and hidden from the undesirable view from the street. The second variant is good for the evening time when it the required solid cloth to protect the window from the outer view. Or, for example, when you need complete blackout for day sleep.
Types of pleated blinds “Day-night” movement:
- upper rail fixed, two bottom rails movable (picture 4);
- bottom rail fixed, two upper rails movable (picture 5);
- upper and bottom rails fixed, two middle rails are movable (picture 6).
Pleated blinds can be installed onto windows of any form: rectangular, rounded, skewed, triangle and polygonal.
They can be installed on:
- glazing bead (its depth size must be not less than 1 cm);
- window frame;
- window opening (into inner side);
Rails of pleated blinds are fixed by screws, brackets (which are mounted to the frame of the opening casement without drilling) or by adhesive tape if the construction's weight can allow it.
Pleated blinds systems have more than hundred constructions, depending on window shape, tilt angle, type of control, type of panels movement, kind of rails' fitting. In generally they could be divided into three groups: free-hanging, tensioned and fixed systems.
Free-hanging systems are such systems where the upper rail is always fixed and the bottom rail (rails) stays free-hanging and can be moved along the length of the window. Such system can be installed only onto vertical fixed window sashes or on standard windows without option of tilt opening. It could be controlled manually by chain or cord hanging from the side of upper rail or remotely by electric drive. In systems “Day-night” there are two cords to control each rail separately.
Tensioned systems are constructions of two types:
- In the first variant one rail is strictly fixed on the window frame, the second rail is fixed by pre-tensioned strings which run through the fabric and along the length of the window.
- In the second variant all rails are fixed by the tensioned springs, this provides a very smooth operation when opening and closing the upper or bottom part of the blind, moving any of the rails separately or together.
Due to this fixation and also thanks to additional tensioned strings running through the fabric folds and preventing the sagging of the pleated blind, it is allowed to use this system for almost any windows, including attic windows with the tilt angle up to 60 degrees. Additionally there could be installed side guides to eliminate the gap between blind and window frame, moreover they can provide extra support to both ends of plisse minimizing its sagging. This system of blinds is operated manually with the help of rod-handle fixed on the operating rail or by the extender for the rod-handle.
Fixed systems are used on the multisection windows of non-standard shapes, where blind is covering the window permanently without possibility of operation.
Recently there were presented vertical pleated blinds on the market. Such blinds are installed on the rigid aluminum frame and are movable only to the left or to the right. They are installed directly on the glass by two-sided duct tape, on the frame of window opening (for the fixed window sashes). They are operated in the same way as horizontal pleated blinds.
Pleated blinds can be operated both manually and remotely (by electric drive).
Manual control can be done by the following methods:
1. With the help of rod-handle fixed on the upper and bottom rails or on one of them. Suitable for vertical and attic windows easy reachable by hand.
2. By cord.
- lifting and pulling down cords are joined together. To lift or drop the blind you need to pull the appropriate part of the cord (picture 7)
- cords are separated. In the upper rail of the construction from one or both sides there are placed cords, when pulling them you can lift or drop down the blind (picture 8)
3. Chain control.
Balls of the chain engaged with pinion of the lifting mechanism, which can lift or drop down both ends of the pleated blinds simultaneously.
4. With the help of extender.
Extenders are used mainly to control ceiling (attic) systems of pleated blinds which are not reachable by hand. There are following variants available:
- Crank-handle is fixed on one of the rails. When rotating this handle blinds are getting open and shut. Crank-handle can be rotated with the help of remote control motorized rod in cases when blinds or windows are out of hand reach.
- Extenders for rod-handle.
(from left to right) Crank-handle. Motorized handle. Extender for rod-handle.
Electric pleated blinds are operated by the motor inside the rail of the item. They are mainly used in winter gardens, for ceiling and highly placed attic windows. For your convenience there are wall switches or remote control to operate the electric blinds. It is also possible to give a signal from special photo- or thermal sensors which react to the certain lighting or temperature level.
There are single channel remote controls to operate one blind or multichannel ones to control several blinds simultaneously.
It is also possible to integrate electric blinds with automatic system as “Smart home” or with timer. Your blinds could be open and shut automatically at a certain time or in case of lighting level change. This allows to protect furniture and interior decorations from fading, provides optimal lighting level for plants in attics, balconies and winter gardens.
FABRICS FOR PLEATED BLINDS
Production technology of pleated fabric includes pressing to form folds of certain shape with width between 10mm and 50mm. Selection of folds' width depends on window size. For standard and middle size windows there are mainly used pleated blinds with folds 20mm width. For very big windows with maximum height up to 4,5m and width up to 4,6m there could be used blinds with 50mm folds.
According to construction's type pleated cloth could be single, double or triple.
Single fabric consists of one cloth. Double and triple pleated blinds are called “cellular” (honeycomb) because of their construction: cloth is folded into several layers sealed together into cell-shape, that allows to trap air, providing heat and noise insulation.
KINDS OF FABRICS
Ткань для штор плиссе изготавливается из высококачественного100%-го полиэстера с несколькими видами пропитки: антистатической, пылеотталкивающей, водоотталкивающей, огнестойкой, антибактериальная и др.
Some fabrics could be treated with reflective coating, aluminum or nacreous ones, thus the blind can reflect bigger part of the heat radiation getting through the window, by this protecting the room against heating and saving the energy for air-conditioning.
Depending on density, fabrics used for pleated blinds can be divided into following kinds:
- transparent fabrics;
- semi-transparent, dim out fabrics;
- blackout fabrics.
To produce the blinds there are used pleated fabrics of the very different colors, both of solid colors and multicolor fabrics (with printing). This allows to provide unlimited possibilities of color selection in accordance with room design. Pleated blinds can complement any interior and they are perfectly looking both as particular decorative element as well as in combination with other kinds of curtains.
In the kid's room it is easy to create fairy atmosphere thanks to huge variety of colors and textures of fabrics. System of blinds “Day-night” is especially suitable for the kid's room, thus it allows to make ideal conditions for the day sleep.
In the kitchen pleated blinds are extra efficient due to dust-, dirt- and water-resistant impregnations of fabrics. They are good-looking element of décor and moreover are compact, easy and convenient in usability, don't require frequent cleaning. Due to their constructive features (opening level adjustment) blinds can protect your eyes from the bright sunlight, in the same time leaving the room lit enough.
Pleated blinds treated with water-resistant impregnation can be used in the bathroom.
Pleated blinds care recommendations. Pleated blinds stay clean for a long time and require cleaning not so frequent as classical blinds do due to special impregnations: dust-, dirt-, water-resistant and others. When needed blinds can be washed with warm water at t≤30°С and dried folded.