The invention relates to construction, namely, the method of manufacturing decorative covering for ceiling structure in the form of stretch ceilings, wall lining with a use of rolled materials, namely - fabrics.

From the prior art there are known various methods of stretch ceilings production in the construction industry.

A known method of the stretch ceiling construction is to use polyether fabric, which weight constitutes 18-24% of the weight of the finished cloth, the fabric with a surface density of 60 g/m ² made as knitted jacquard weaving warp and chevron type weft covered on at least one side with PVC substrate, which is subjected to heating up to 180 °C and aftercooling, and at that its weight constitutes 76-82% of the weight of the finished cloth. The finished cloth is cut out and fixed around the perimeter of the walls under the ceiling at an ambient temperature (patent No. FR2738847 (Al), IPC: D04B1/16; D06N3/00; D06N3/06; E04B9/30, (IPCl-7): D04B1/16; D06N3/06; E04B9/00, published on 03/21/1997).

The disadvantage of the known method is, firstly, the need for industrial production of the cloth that is connected with technology of the fabric covering with PVC substrate, and further heating up to 180 °C with the use of specialized equipment and subsequent cooling; the visual perception of the existent seams between parts of the cloth in case of large dimensions of stretch ceiling; inability to change the colour of the finished ceiling - the colour scale is chosen only once at manufacturing the cloth; in operation the ceiling accumulates on the cloth surface covered with the PVC substrate an electric charge due to electrization.

Stretch ceilings made with Clipso firm fabric (Switzerland) may be considered as the closest analogue (patent No. US2004048046 (Al) «Method of manufacturing panel stretched on the frame, and the panel itself», IPC: B29C61/02; B44C7/02; B44D3/18; D06M1 1/46; D06 15/564; D06N3/00; D06N3/14; D06N7/00; E04B9/04; E04B9/30; E04C2/38; G09F15/00, (IPCl-7): B32B31/00, published on 03/11/2004). The panels stretched on the frame are made from a textile material, which consists of flexible knitted synthetic yarns in the form of a mesh that can be deformed in all directions, which is covered on at least one side with a mixture containing at least one elastic polymer. The material is cut out in the sizes that exceed the perimeter of a frame, then it is fixed, and a heat setting of the flexible polymer textile material is provided by heating a part of cloth stretched on the frame. The percentage reduction of the material dimensions varies from 5 to 10%.

The disadvantage of the above method is, firstly, the need for industrial production of the cloth, which is associated with the technology of coating a textile material with a polymer mixture, and further dwell of the cloth to complete the mixture polymerization that require special industrial equipment. After mounting of stretch ceiling, to ensure uniform tension and aesthetic appearance of the ceiling the cloth is subjected to local heating up to 200 °C at a distance of 20-30 cm from the fabric surface in places of any distortion of the cloth that requires the use of specialized equipment onsite of the stretch ceiling mounting. Also the downside of the analogue is a visual perception of the presence of seams between parts of the cloth at large dimensions of the stretch ceiling, and structure weave of the fabric yarns, as well as inability to change the colour of the finished ceiling - the colour scale is chosen only once at manufacturing the cloth. The disadvantages of the method can further include: low heat resistance, low resistance to alkalis, accumulation of non-recoverable deflection under the effect of permanently acting loads, dependence of physical and mechanical properties on temperature fall and sunshine, in operation the ceiling accumulates on the cloth surface covered with polymer compound an electric charge due to electrization.

The invention aims at eliminating the problems described in the prior known methods, and to achieve a method of manufacturing durable decorative coating of ceiling structures in the form of stretch ceilings, wall lining using the roll material - namely, fabrics - at ambient temperature, not limited in size and shape, simple and economical to manufacture, without harming the environment, resistant to mold, insects or rot, physical and mechanical properties of the coating does not degrade under the influence of temperature, moisture and UV radiation, without visual perception of seams on the cloth and with the possibility of repeated changes of colour painting or decorative images, and such that does not accumulate the static electricity.

The task is solved owing to the method of manufacturing decorative coating for ceiling and walls that includes forming a cloth from textile material coated at least on one side with a mixture comprising at least one flexible polymer and fixed to the framework basis, which was performed in the manner described below.

The framework basis is made of guide rails in the form of long elements made of wood or sheet composite material of wood or the elastic polymer, which density makes it possible to retain fasteners, and at that the guide rails form a closed frame corresponding to perimeter of wall or ceiling or the part thereof to be decorated. The guide rails, which are made of wood or cut out from a sheet composite material of wood and fixed along the perimeter of wall, ceilings or parts thereof to be decorated, can form any closed frame. Herewith this material is environmentally safe, easy-to-use and cost-effective. The density of material ensures a durable hold of the fasteners, affects the quality and the visual perception of the manufactured decorative coatings. In the presence of curved lines around the perimeter of the decorated wall or ceiling, an elastic polymer is used as the guide rails at the bend of the perimeter, which density enables to retain fasteners. This makes it possible to create a structure of any shape for further decoration.

As a textile material the household-purpose weaved fabrics are used manufactured by plain weaving of mutually perpendicular textured polyester synthetic fibers made on the basis of thermoplastic polyester of terephthalic acid and ethylene glycol, namely the warp and weft.

The choice of fabric: All other conditions being equal, synthetic fabrics have utmost strength. Fabrics made on the basis of thermoplastic polyester of terephthalic acid and ethylene glycol are widely used today in everyday life and industry. Fabrics of weaving factory for household purposes have the following advantages:

- high degree of protection against adverse environmental conditions (high and low temperature, wind, UV radiation, rain, snow), that enables to use these fabrics for external and internal decoration in the temperature range from minus 40 °C to plus 80 °C;

- wear resistance, ease of maintenance, ease of handling, stability of form and colour, pollution resistance;

- lower cost compared to natural fabrics;

- synthetic fibers are not affected by mold, insects, and rot;

- inherit low elasticity that prevents sagging of the strained cloth;

- no accumulated odors;

- decomposition at 350 °C, melting at 250-265 °C;

- resistant to acids and solvents - i.e. the fabrics have unvarying physical and mechanical properties that remain unchanged for many years;

- hydrophobic material, almost no moisture absorption, so you can use this material outdoors or in wet premises.

Use of fabrics made of synthetic fibers manufactured by plain weaving of mutually perpendicular threads of warp and weft has the following additional advantages. This is a simple and most common weave in which the warp and weft threads alternate through one. Layout of the plain weave resembles a chessboard. The plain weave has the shortest overlapping; the fabric surface is usually smooth, identical on both sides that make it possible to attach the fabric to the guide rails by any side (front or inner). Using of the cloth enables to cut openings in the fabric in places of insertion lighting, ventilation and other equipment. Empirically it was found that the optimum performances of the fabric used for manufacture of decorative coating for walls and ceiling must be the following: surface density of 80 to 220 grams per square meter, breaking load in the warp of at least 35 kgf, in the weft - at least 25 kgf. The plain weave confers the fabric the greatest strength and increased stiffness at high density. Increase of fibers linear density, increase of actual tissue density, use of plain weaves with short overlaps ensures increased fabric strength. Use of fabric with limiting values of these characteristics makes it possible to provide the fabric tension by hand without the aid of special equipment, and at that the sagging of the fabric coated with mixture does not exceed 5 mm per 10 square meters of the mounted stretch ceiling. And one more thing - the value of breaking load enables at least 5 cycles of the mixture application onto the cloth.

Fabrics are manufactured in widths from 1.5 to 5 meters. In this connection, at the manufacturing cloth for a ceiling or wall greater than 1.5 meters, the fabrics of 1.5 meters width are connected typically by sewing them together using a sewing machine that ensures production of the cloth for the ceiling or wall of any size not limited with width and length of the fabric pieces. The surface density of the fabric in the selected range enables machine-tooled sewing together of the fabric pieces. Spanning of finished cloth with connecting seams and the specified surface density limits provides its high quality stretching both on warp and weft. As the surface density is increased, the quality of the cloth stretching on weft is reduced, thus causing defects of fabric pleating.

At that the fabric is cut out in the sizes that exceed the perimeter of the closed frame formed by guide rails. The proposed method does not require the fabric cut out with special accuracy just simplifying the process of manufacturing decorative coating for ceiling and walls. The fabric spanning is performed at ambient temperature without any additional heat source, so you can create a decorative wall coating both indoors and outdoors.

The cut out fabric is attached to the guide rails with fasteners in the form of single rods that have a head and a pointed end or with U-shaped bars made of iron and carbon alloy or brass. Material and form of the fasteners enable to provide a reliable secure of the cut out cloth to the guide rails with use of pneumatic or mechanical devices.

The fixed fabric is coated with a mixture in any known manner, and herewith the mixture basis consists of styrene-butadiene or styrene-acrylate dispersion of water-based latex. As a result, the adhesion processes occur between the cloth and the mixture, as well as polymerization of the mixture.

After polymerization the mixture forms on the fabric surface a thin layer of material with a smooth uniform surface of matte finish. Styrene-butadiene dispersion of water-based latex forms on the cloth surface waterproof thin layer of material, which is resistant to water and mechanical impact, optimal for use in premises with high moisture and humidity, well for cleaning, resistant to detergents and disinfectants, thus is more economical option than the styrene-acrylate dispersion, while its application for use on the cloth is carried out only for interiors. Styrene-acrylate dispersion of water-based latex is the most versatile substance. It forms a vapor permeable coating, resistant to UV radiation and atmospheric conditions (low and high temperatures, wind, rain, snow), has high adhesion due to small particle size (0.08- 0.15 μιη), and penetrates deep into the fabric, strengthening it. These mixtures have a lifespan of up to 25 years, and this enables to provide the claimed technical effect as a durable decorative coating. Various fillers can be added to the mixtures thus changing the colour palette.

Repeated application of the mixture on the fastened fabric causes to disappearing of visual perception of a binder seam. The used mixture components confer the cloth such property as not accumulation of static electricity.

The mixture, which is applied on the cloth in the polymer state, makes it possible to perform a decorative image or change the colour palette of the cloth for at least 5 cycles. This is enabled both by the properties of the fabric used in the manufacturing of decorative coating for the ceiling and walls, and by the properties of the mixture.

The invention is illustrated by drawings, in which: Fig. 1 shows a top view of a stretch ceiling, Fig. 2 shows a bottom view of the stretch ceiling, Fig. 3 is a diagram and a view of a plain weave of fibers of the cloth.

Elements of the invention are designated with the following reference numerals:

1 - cloth from textile material (fabric)

2 - guide rail

3 - warp fibers

4 - weft fibers

5 - mixture layer on the cloth surface

6 - wall

7 - a part of cloth, which is cut off

Method of manufacturing decorative covering for ceiling and walls, including manufacture of the cloth from textile material (1) covered on at least one side with mixture (5), which comprises at least one elastic polymer, attached to a framework base, characterized in that the framework base is made of the guide rails (2) in the form of long elements made of wood or sheet composite material of wood or elastic polymer, which density makes it possible to retain fasteners, and the guide rails (2) form a closed frame corresponding to perimeter of the wall (6) or ceiling or the part thereof to be decorated; at that as a textile material the household-purpose weaved fabrics (1) are used manufactured by plain weaving of mutually perpendicular textured polyester synthetic fibers made on the basis of thermoplastic polyester of terephthalic acid and ethylene glycol, namely the warp (3) and weft (4); and the fabric (1) itself has a surface density of 80 to 220 grams per square meter, breaking load in the warp (3) of at least 35 kgf, in the weft (4) - at least 25 kgf; at that the cloth (1) is cut out in the sizes that exceed the perimeter of the closed frame formed by guide rails (2) and attached thereto with fasteners in the form of single rods that have a head and a pointed end, or with U-shaped bars made of iron and carbon alloy or brass; and the fixed fabric (1) is coated with a mixture (5), and herewith the mixture (5) basis consists of styrene-butadiene or styrene-acrylate dispersion of water-based latex; and the mixture (5), which is applied on the cloth in the polymer state, makes it possible to perform a decorative image or change the colour palette of the cloth (1) for at least 5 cycles.

The method of manufacturing decorative covering for ceiling and walls is implemented as follows. The guide rails are attached along the perimeter of the walls under the ceiling or along the perimeter of the wall to be decorated. The fabric prescribed for manufacturing cloth for the stretched ceiling or wall covering is cut out in the sizes that slightly exceed the area of decorated surface, without observance of the precise dimensions, using the connecting seam if necessary.

The cut off fabric is strained around the perimeter of the room with simultaneous attaching it to the guide rails with fasteners using pneumatic or mechanical devices, such as a stapler or a puncher.

At that the fastening of cloth cutout to the guide rails they commence from a corner of the room, and then - to guide rails along the sides of the said corner with simultaneous spanning of the cloth cutout firstly in the direction parallel to one side of the corner, while on reaching by the cloth cutout of the opposite sides of the room the direction of the spanning is changed in direction that is perpendicular to the mentioned; herewith the cloth is firstly attached to the guide rails at the remained corners of the room, and then - to the guide rails on the sides of these corners.

The next stage of work is decoration of the surface of the fixed cloth, which is carried out by applying a mixture by any known method with the use of pneumatic or mechanical devices. The mixture is applied on entire surface of the cloth. The mixture is left to complete polymerization, after which the mixture is applied repeatedly. After re-applying the mixture there is no visual perception of the of seams existing on the cloth. A crackle is disposed in advance on the surface of the fixed cloth to enhance the decoration, and that is followed by application of the solution or pulverized milled solid substance with glue basis. Using of the cloth enables to cut openings in the fabric in places of insertion lighting, ventilation and other equipment, if necessary.

Industrial applications. The Method of manufacturing decorative covering for walls and ceiling can be used in decorating of all kinds of stretch ceilings and walls or partitions, or wall claddings indoors and outdoors, e.g. terraces. Information sources:

1. Patent No. FR2738847 (Al), IPC:

D04B1/16; D06N3/00; D06N3/06; E04B9/30; (IPCl-7): D04B1/16; D06N3/06; E04B9/00; published on 03/21/1997.

2. naTeHT No. US2004048046 (Al) "Method of manufacturing panel stretched on the frame, and the panel itself," IPC: B29C61/02; B44C7/02; B44D3/18; D06M1 1/46; D06M15/564; D06N3/00; D06N3/14; D06N7/00; E04B9/04; E04B9/30; E04C2/38; G09F15/00; (IPC 1-7): B32B31/00, published on 03/1 1/2004.