Method of producing synthetic grass coat and device to aplly it

FIELD: process engineering.

SUBSTANCE: synthetic "grass" coat comprises rows of ribbons arranged with major spacing, the ribbon length making two spacings between ribbon rows. Dispersed material is laid in carcass base. Note that dispersed material layer thickness makes at least 2/3 of ribbon length. Ribbon strips are glued together by adhesive material applied onto the back of carcass base or matrix. Adhesive material strips are spaced apart to have uncoated section on carcass base.

EFFECT: method and device to apply grass-like coat.

2 cl, 9 dwg

 

The present invention is directed to improvements in synthetic “grass“ coatings. The present invention, in particular, aimed at improving synthetic “grass“ surfaces for sports facilities. The present invention is also directed to a method of manufacturing an improved synthetic “grass“ coatings for sports facilities and devices for implementing this method. The present invention is further directed to the improvement of synthetic “grass“ surfaces for sports facilities, containing guidelines for games, formed in their upper surface, and a method of manufacturing a lined surface.

Synthetic “grass“ coatings for sports facilities are well known. They are used to replace natural turf, not sufficiently resistant to wear and require large expenditures for their maintenance in proper condition. In addition, natural turf is not enough to grow well in partially or fully enclosed sports facilities. Synthetic “grass“ coating is much more resistant to wear than natural turf, do not require such high cost of care and can be used in closed structures. Some synthetic etching the s coatings contain a series of strips or ribbons of synthetic material, upward from the base of the Mat, and the gaps between the ribbons on the Mat filled dispersed material. Ribbons of synthetic material are usually somewhat higher above the layer of dispersed material and represent the “stems” of grass. The dispersed material usually contains sand, as shown as example in U.S. patent No. 3995079, 1976, issued in the name of Haas Jr., and in U.S. patent No. 4389435, 1983, issued in the name of Haas Jr., but may contain other materials, or a mixture of sand and other materials, as shown as example in U.S. patent No. 4337283, 1982, issued in the name of Haas Jr. The dispersed material provides elasticity synthetic “grass“ coatings, these coatings are often placed on an elastic substrate, providing even more flexibility to the coating.

Known sand filled synthetic “grass“ coatings for sports facilities have a number of disadvantages. Coverage usually become stiff after prolonged use due to the fact that the sand between the rows of ribbons compacted. The seal is at least partly due to the fact that the rows of ribbons are located very close to each other and the sand cannot significantly be distributed to the parties in the process of use. The seal is also partly because close on th the th rows of ribbons pick up the pieces, worn and torn ribbons in the sand even when the dispersed material contains rounded sand particles. With the increase in the seal coating is becoming more rigid and less elastic. The coating worse performs its function, and decrease it's quality. The coating also becomes tougher after extended use due to the fact that the elastic substrate, if used, are gradually destroyed, becoming denser. Removing and replacing the compact dispersed material or even loosening it difficult because of the small distances between the rows of ribbons. Removal and replacement of compacted dispersed material or even to loosen it may require expensive equipment, and this leads to increased maintenance costs of such coatings.

Another disadvantage of the known synthetic “grass“ surfaces for sports facilities is the issue of drainage (moisture removal). Leakage of water through the coating has always been small. Ribbons are usually attached to the Mat by firmware through the Mat, followed by the floor Mat on the reverse side an adhesive layer for attaching the ends of the ribbons to the Mat. The adhesive layer is not porous. To give the desired porosity of the Mat coated is subjected to puncturing to form holes. However, the dispersed material often falls into the minute holes, hammering them and thus reducing the drainage quality of the coating. Leak dispersed material in through holes also requires its replacement with the top side of the Mat, causing additional maintenance costs of coverage. The sealing surface also prevents drainage.

Known synthetic coatings also have a relatively low gaming skills. When the floor is filled rounded sand particles (rather rounded than angular, as it is believed that the rounded particles are less compacted and cause less friction), the floor may be too slippery, especially when ribbons only slightly greater than the thickness of the layer of dispersed material. In addition, closely spaced thin ribbons can firmly grab the spiked footwear, if they penetrate between them, and do not break as easily as grass, thus making the release of more complex spikes and turning the game on such surfaces more complex and dangerous than playing on natural grass. If the spikes shoes of the player is not released easily, it can damage the leg (from the hip to the foot, ankle or knee. It was also found that, if the spikes shoes athlete penetrate into the coating in the weld area, the probability that the shoes will not be released or will not be able to turn significantly more.

Known Sint the political cover with tightly spaced rows of ribbons also contribute to the increase in the speed of rotation of the ball in comparison with the as the ball rotates on natural grass. Tightly spaced ribbons create a nearly continuous surface with low resistance to rotation of the ball, thus adversely affecting the playability of the coating. If the coating is used with an elastic substrate, the balls bounce more on this turf than on grass, significantly changing the nature of the game. Surface with low friction also makes it more slippery for tennis players.

Known coatings have other disadvantages. Usually used ribbons are very narrow and they can bend, creating the appearance, not similar to the grass. Narrow ribbons also easier erased, which are formed fragments, which can increase the density of coverage. The dense arrangement of the rows of ribbons also leads to skin damage players falling or postalservice on the floor.

Known synthetic coating containing elastic frame element and parallel rows of synthetic ribbons, simulating grass, upward from the frame element (Patent Canada No. 2095158). However, this technical solution also has all the above-mentioned disadvantages of other devices of the prior art.

The aim of the present invention is to provide an improved synthetic “grass” cover for sports facilities the deposits, with greater elasticity and retains more elasticity for a longer period of time than known synthetic “grass” cover.

The next objective of the present invention is to provide improved synthetic “grass” surfaces for sports facilities with improved drainage properties and superior playing qualities.

Another objective of the present invention is to provide improved synthetic slot coating, less costly to manufacture, laying and especially in the service.

Another objective of the present invention is to provide improved synthetic games coatings with greater resistance to wear, which are more easily marking of lines and greater ease of stitching.

Another objective of the present invention is to provide a manufacturing method of a variant of implementation of the present invention, different superior drainage properties, and device for implementing this method.

In accordance with the present invention it was found that improved synthetic “grass” coating can be created by introducing ribbons having a length twice the distance between the rows of ribbons. In this image the shadow use ribbons, which are significantly longer than those used up to the present time. In the greater length of the ribbons, you can get thicker layer intended for the use of dispersed material, which may allow to eliminate the need for elastic substrate and to make the process of paving a more simple and cheap. Use a thicker layer of dispersed material, or filler, promotes better drainage due to the higher water pressure created by the water on the synthetic “grass”. Preferably, the layer of dispersed material has a thickness comprising at least two-thirds of the length of the ribbons. The longer ribbons can also contribute to the formation of a thicker layer of the tape material on the surface of the filler for some sports surfaces, creating a more realistic, more like natural grass floor, which, combined with the greater distance of the rows of ribbons, also contributes to a better penetration of the spikes shoes athlete at floor (for clutch), and their best release. Spikes shoes the player can shift the ribbon and the material of the filler in order to provide easier their release.

Thus, in accordance with the first aspect of the present invention, the above objectives are achieved by means of the PTO synthetic coating, containing elastic frame element, parallel rows of synthetic ribbons, simulating grass, upward from the frame element, and the rows of ribbons spaced from each other, the coating layer contains dispersed material located on the frame element, support ribbons essentially in a vertical position relative to the frame element, the length of the ribbons and the distance between the rows relate to both 2A<L so that the length of the ribbons, at least, two times longer than distance between rows, while the thickness T is equal to at least 2/3 the length of the ribbons, where A is the distance between rows, L is the length of the ribbon, measured from the elastic frame element, and T is the thickness of the layer of dispersed material.

Preferably, the coating was designed for sports fields.

It is advisable that the thickness of the dispersed material and the length of the ribbons were correlated as 3/2T≤L so that the ribbons were given out over the layer of dispersed material, at least 1/3L.

Preferably, the ribbons were on 6,35-38,1 mm above the layer of dispersed material.

It is possible that each ribbon had a width of about 12.7 mm

It is useful to frame the item was a single-layer, two-layer or three-layer material.

Preferably, the frame e is ement contained one or more layers of material, moreover, at least one of the layers was the material processed by hypoproteinemia to create hairiness on its surface and to increase the permeability of the frame element.

It is advisable that at least one of the layers of the material was the material processed by hypoproteinemia to create hairiness on its surface.

It is desirable that the size of A was equal 15,875-57,15 mm, and L - 38,1-127,0 mm

It is possible that the length of the ribbons, the distance between rows and the thickness of the dispersed material were linked by relations: 2A=3/2T=L.

It is preferable that L was in the range from 3A to 6A, and the coating used for sports fields.

It is advisable that the size of A was equal 15,875-57,15 mm, and L - 38,1-127,0 mm, and the coating used for sports fields.

Also in accordance with the present invention the coating provide superior filling layer dispersed material. The filler preferably contains a mixture of quartz sand and rubber particles obtained by grinding the rubber in frozen form. Ground frozen rubber particles are much lighter than the ground in unfrozen form rubber particles, and allowing more rapid removal of moisture. The ratio of sand to the number of rubber particles can is to be changed depending on the final destination of the coating; the more elastic the required coverage, the greater use of rubber. Ground frozen rubber particles less angular than unfrozen ground up in the form of rubber particles, and have less tendency to allow connection of water and microscopic air bubbles, which carries water, these particles. Thus, there is less tendency of the rubber particles to float up when the floor is flooded with water, which could lead to loss of material and change the playing qualities of the coating.

Thus, in accordance with the second aspect of the present invention, the above objectives are achieved through synthetic coatings containing elastic frame element, parallel rows of synthetic ribbons, simulating grass, upward from the frame element, the coating includes a layer of dispersed material located on the frame element, support ribbons essentially in a vertical position relative to the frame member, the dispersed material contains a mixture of elastic dispersed material and the solid dispersed material with a particle size of from 0.16 to was 2.76 mm

It is advisable that at least the elastic particles dispersed material has a spherical shape.

Preferably, the thickness is on the layer of dispersed material was at least 2/3 the length of the ribbons from the frame element to the free ends of the ribbons.

It is desirable that the layer of dispersed material has a lower sublayer with particles ranging in size from 0.16 to was 2.76 mm and the upper sublayer with a particle size of 0.59 to 1.2 mm

It is possible to elastic dispersed material was selected from a group of materials with properties of ground frozen rubber, such as cork, styrene, etilenpropilendienovogo rubber, neoprene or other similar material, and the solid dispersed material selected from the group consisting of quartz sand, small rocks and solid and heavy plastics.

It is advisable that the dispersed material was ground in a frozen state rubber and sand.

After a General description of the nature of the invention will be made with reference to the accompanying drawings, showing only as an illustration, the preferred embodiment of the invention, where

figure 1 shows a cross section of a coating made in accordance with the present invention;

figure 2 is a view, similar to Figure 1, which shows the free ends of the ribbons located in a natural horizontal position;

figure 3 is a side view of a device for coating;

figure 4 is a cross section on 4 - 4 figure 3;

figure 5 is a top view of the device;

figure 6 is a detailed top view;

figure 7 is a view in isometric wireframe cell battery (included) is that after applying to a surface;

on Fig - front view with the digging of a seam in the floor, and the seam forms a marking line;

figure 9 - view of the Assembly seam on Fig.

The best option is the implementation of the present invention

Synthetic “grass” floor 1, made in accordance with the present invention, as shown in figure 1, contains a thin elastic frame element 3 parallel rows 5 strips, or ribbons 7 upward from the frame element 3. A relatively thick layer 9 fills the dispersed material is placed on the frame element 3, support ribbons 7 in a relatively vertical position on the frame element 3.

Elastic frame element 3 can, as shown, to contain two lining layers 11, 13. The bottom layer 11 may be cloth or non-woven needle-punched polypropylene material. The top layer 13 may also be a fabric or needle-punched polypropylene material. Plastic strips, or ribbons 7, stitch through the frame element 3, as shown in figure 2, passing through both layers.

Although the frame element 3 has been shown as containing two layers, it may also be formed from one or more layers. One or more layers in the frame element 3 can be cloth, punctured hypoproteinemia in order to provide better drainage to the quality, moreover, the fabric may be relatively thick, if you use only one layer. At least one of the layers 11 of the frame element 3 can be bonded hypoproteinemia with fleecy synthetic fibres 15, as shown in figure 2, for the introduction of tools for removal of moisture through the layer. Fleecy fibers further improve the drainage quality of the coating.

Ribbon 7 is made from an appropriate synthetic plastic material, which ekstragiruyut in the form of a strip of relatively great width and thickness. The preferred plastic material is polyethylene, which is soft and has good resistance to abrasion. However, the polypropylene can also be used for the manufacture of ribbons. The strips can have a width of 6.35-25.4 mm, but preferably about 12.7 mm, the thickness of the strips is 65-150 mm. Ribbon 7 is obtained by cutting extrudable strip and fix the flashing frame element 3 parallel rows of 5. The density of the pile tufts in a row is 2-8 on the length of 25.4 mm, but preferably it is 4 pile beam on the length of 25.4 mm Strip mechanically fibrillary or split to ribbons with a width of approximately 3,175 mm

Fibrillation, which is produced mechanically at the time of manufacture of the strip, allows you to get a ribbon, similar to Seto the ku hair, i.e. resulting from this process, the fibers are connected.

The distance between the rows of ribbons depends on the intended activity of the players on the field. For example, the spikes on sports shoes for various sports are on average increments, constituting approximately 19,05 mm Studs on football boots can be wider than a baseball spikes. The step between the ribbons depends on the type of sports games, which is expected to occur on the field, and is derived from a step between spiked sports shoes players. Similarly, in sports such as horse races; as you can imagine, requires a much greater distance between rows to accommodate a wider hooves of horses. Thus, it is possible to imagine that the race step between the rows should be to 57.15 mm with proportionally longer ribbons - up to 127 mm

The preferred relatively wide ribbons, at least, of a width of 12.7 mm, because the wider the ribbon is not twisted as easily as thinner ribbons, and more resistant to wear and abrasion. Wider ribbon 7 is also more dim the surface of the dispersed material, when they Lodge, holding the filling material, as shown in figure 2. At least the free ends of the ribbons 7, located n the top layer 9 of the dispersed material, fibrillated to ensure the appearance of more dense pile. If laid synthetic “grass” floor and covered the filler, the ends of the ribbons can be even more fibrillated by use of wire brushes or other mechanical fibrillary funds.

It is also assumed mix of ribbons of different thicknesses. For example, depending on the type of the field, i.e. the field where the ball would be spinning much slower than the other, can be mixed more rigid and less rigid ribbons. More rigid ribbons as would have greater memory and, thus, return ribbons in the original standing position, relatively speaking. Examples of such mixtures can be thick ribbons linear density 1210 Tex at a thickness of 100-120 microns. Softer ribbons can have a linear density of 627 Tex and a thickness of 80 μm. Any combination of these more rigid and less rigid ribbons can be determined by specific requirements of the playing field. The ratio of hard and soft ribbons can be 1:1. These hard and soft ribbons can be arranged in an alternating or can be in a single pile tuft.

In accordance with the present invention, the series 5 ribbons 7 are arranged with a pitch “a”, which is 15,875-57,15 mm Step between rows depends on konechno the purpose of the coating, moreover, a smaller step used in coatings intended for the less physically active sports, such as Golf on the grass, and the bigger the step used in coatings intended for more active sports, such as horse races.

Relatively larger step between the rows of ribbons gives several advantages to the floor. With a larger step reduces the tendency of the coating to the seal. If the tendency of the seal is reduced, drainage quality improved. With a larger step also reduces the amount of material required for the manufacture of ribbons. With a larger step improves game quality of the coating. The athlete who plays on this floor, has great grip, as the spikes shoes player easily penetrate into the dispersed material between the rows of ribbons. At the same time, the spikes easier released, because there is more space between the rows to move the dispersed material in the release. With a larger step also easier to loosen, clean and even replace the dispersed material. Between the rows there is more space for the introduction of material air nozzle to gently loosen it slightly, to raise its level. Loosened and lifted the material can be collected, cleaned from dirt and pieces and returned to the frame element. The lifetime of uvelichenie the Xia and thus, the replacement costs are reduced. With a larger step also easier to sew joined segments coating without creating thickened joints, because there is more space for the seam.

The length of the ribbons is also an important feature of the present invention. The length “L” of the ribbons 7, i.e. the distance from the frame element 3 until the free end 17 of at least twice the distance “A” between rows 5 ribbons and preferably three to six times larger than the distance “A”. The length “L” of the ribbons can be 19,05-127,0 mm, and a shorter ribbons used in coatings in smaller increments between the rows and the longer ribbons used in coatings with a large pitch between rows. The relatively long ribbon, in comparison with those used in known to date technical solutions that allow you to use a thicker layer of filler 9, thus creating a more elastic coating without the necessity of applying the lining Mat. This eliminates the cost of purchasing the lining of the Mat and for its installation. A thicker layer of filler 9 improves drainage qualities due to the formation of a higher water level and thus create a higher water pressure on the upper surface of the coating. The use of a longer l is nocek may also enable you to get a longer free ends of the ribbons over the layer of filler, even if the filler layer will be thicker, and loose ribbons provide for greater protection of players from sand and other particulate materials when they fall on the floor and reduces the risk of damage to the skin. Ribbons may protrude from the surface of the layer of filler somewhere to 6.35 to 25.4 mm, the thickness of the layer of filler may be 25,4-101,6 mm depending on the final destination of the coating. The filler layer usually has a thickness “T”, comprising about 2/3 of the length “L” of the ribbons.

Layer 9 dispersed material preferably comprises a mixture of hard sand, such as quartz, and ground freezing rubber crumb. Ground freezing crumb rubber is preferred because the particles are more rounded, which reduces to a minimum the friction and also reduces the degree of compaction. Less angular rubber particles easier wetted, thereby promoting drainage. In addition, it seems that particles are also less susceptible to entrainment by the flow, if the surface is washed so as microscopic air bubbles are not easily stick to rounded particles. The particle sizes are in the range of 0.16 was 2.76 mm, but preferably in the range of 0.59-1.2 mm, for coatings intended for such sport where the friction players in contact with the floor, is su is the natural enemy factor 0.16-1.2 mm, where it is not essential. Quartz sand can be replaced with assorted small pebbles, hard and heavy plastic granules or other solid sand. Ground freezing crumb rubber can be replaced by other elastic materials, such as cork, steren, ethylene-propylene rubber, neoprene, or other similar materials, if the particle shape matches the shape of the ground during freezing of rubber. In some cases, part or all of an elastic material may be replaced by other materials that perform specific functions. An example would be the use of perlite, which can replace the elastic material to reduce compaction and the ability to absorb moisture.

The ratio of sand and elastic material in the mixture can be changed depending on the final destination of the coating. More rubber is used when the coating should be more elastic. In a relatively thick coating layer 9 of dispersed material can be divided into sublayers, of which the underlayer 17 is located next to the frame element 3, as shown in figure 2, and contains particles of a smaller size, and the upper sublayer 19 contains particles larger for initiating good drainage. Particles in the lower sublayer 17 may be composed mainly of sand with sizes within the Ah 1,57 was 2.76 mm The upper sublayer 19 may contain sand particles are larger in size, mixed with particles of rubber. Use mainly or only sand in the lower sublayer allows to reduce the cost of coverage.

The cover 1 is made by attaching ribbons 7 flashing them through the frame element 3 in the form of series 5, located increments 15,875-63.5 mm, and in each row have 2-8 ribbons 25.4 mm After flashing ribbons 7 on the wrong side frame element 3 may be covered with a coating for bonding the strips to the frame element. The coating can be applied to the whole frame element.

Preferably, however, in one embodiment of the present invention, in which use porous frame element, only part of the frame element to apply coating to provide better drainage qualities and to reduce the cost of coverage. In accordance with this embodiment of the frame element 3, after flashing it with ribbons 7, let the top down through any standard machine for coating carpets. Machine 31 for coating, as schematically shown in Figure 3, 4, 5 and 6, includes a support plate 33 to maintain stitched frame element 3 of the cover 1 when it passed through the machine. There is a means (not shown) for moving the program frame element 3 along the support plate 33 from one side to the opposite, as shown by the arrow 34 in figure 3. When the movement of the element 3 along the support table 33 it passes under the comb-shaped device containing a series of parallel slats 37 resting on the inside surface of the frame element 3 and placed against the support plate 33. The bars 37 can be adjusted according to the distance (pitch) between them, and their position is adjusted, with each bar between each pair of adjacent rows of 5 ribbons in the frame element 3. The rod 39 is located above the slats 37 closer to the front of the bars 37, than to their rear. Means for applying 40 is intended to supply coating material “M” to granatabolu device 35, across its width just before the rod 39. As you move the element 3 to the right, as shown in Figure 3, under device 35, covering the material “M” is carried away together with the element 3 in the direction of the squeegee 39, where the coating material is distributed over the width and stack on narrow sections 41 of the frame element 3, no hole straps 37. These areas 41 contain rows 5 ribbons, and the ends of the ribbons in these series cover covering the material “M” in order to glue the ribbon 7 to the frame element 3. The strap 37 protect against ingress of coating material “M” on narrow sections 43 of the frame element 3 located next to the rows of ribbons 5. When the frame element 3 UD is collected from under the straps 37, on his wrong side remain strips 45 covering of material “M”closing ranks 5 ribbons, but adjacent areas 43 of the frame element 3 remains open due to the straps that provides a very high porosity of the coating, which contributes to a very easy flow of water. The amount of coating material laid by a device for applying significantly less than is required for deposition on the entire surface of the frame element, and thus achieve additional savings of materials, making the floor more cheap.

Although there is described one form of coating in the form of stripes on rows of ribbons, the coating can be applied by other means. For example, adjacent nozzles can apply a thin coating lines at the rows of ribbons and using a squeegee, you can align the lines of covering material on the wrong side of the Mat, at the same time leaving a relatively wide longitudinal sections of the frame element sheltered and thus capable of quick water drainage. Can be used for shafts of different diameter for coating.

In accordance with another embodiment of the present invention the line for marking the playing space can be made in the floor by connecting the adjacent edges of the sections covering special seam. As shown in IG, stitched cloth 51 is placed under join, but distant from each other, the edges 53, 55 of the adjacent sections 57, 59 coatings, which require to connect. Stitched canvas 51 contains rows 61 stitched ribbons 63 in its middle section 65, but does not contain ribbons in sections 67, 69 width. The Central section 65 is located between the edges 53, 55 of the segments of the cover 57, 59, and stitched ribbon 63 in the Central section 65 may be of a different color and/or different heights unlike ribbons 7(sections cover 57, 59, to form line 71 for marking the field of play. Sections 67, 69 width stitched canvas 51 can be processed by hypoproteinemia to obtain fleecy material. Glue “And” put on the front side sections 67, 69 width for bonding thereto imposed lapped sections 57, 59. Fleecy material improves the connection stitched canvas 51 with sections covering 57, 59 when gluing. Stitched canvas 51 may be coated on the reverse side coating material “M” just below the Central section 65, but preferably under the side sections 67, 69 as well. This prevents from penetration glue “And”used to perform the stitching through the fabric 51 and, probably, from bonding to the substrate. When the canvas 51 attached to the sections of the cover 57, 59, as shown in Fig.9, and connects them with each other, ribbons 63 because of the differences from lentech is to 7(in sections cover 57, 59 determines's line 71.

In another embodiment, the present invention can be used floor with long ribbons, the length of which is at least 114.3 mm, and a layer of dispersed material may have a thickness equal to the length of the ribbons. This coating can be used as a surface for germination. The dispersed material may contain substances that promote the growth of plants, such as substances that retain moisture for plants, and substances that allow to develop the root system of plants. Improving substances can form one or more sublayers in layer of dispersed materials. In some cases, improving substances may have a specific gravity less than the specific weight of water, and the location of this substance in the lower sublayer under the top layer ensures that it is in place and it does not take away water. This coating is especially suitable for regions with a dry climate. Irrigation pipe can be laid directly inside layer of the dispersed material. The porosity of the frame material can be created to preserve moisture in the material to promote plant growth. Ribbons can minimize the amount of dispersed material, which may be gone with the wind in the regions in windy conditions.

sportivnoe field, which use high pile of ribbons, a thick layer of dispersed material, including ground frozen rubber, can be used to support the growth of natural grass, the roots of which penetrate into the dispersed material.

1. A method of manufacturing synthetic turf (1), containing under flashing ribbons (7) of synthetic material of the porous frame element (3) parallel, spaced rows (5) and applying strips of covering material (M) on the wrong side frame member, each strip of covering material covers one row of ribbons to attach the ribbons to the frame element, and a strip of covering material are located at a distance from each other so that between them there are lots (43) open frame element.

Ontrast (31) for applying coating material (M) on the wrong side frame element (3) stitched rows (5) synthetic ribbons (7), representing blades of grass, containing the support plate (33) to maintain the frame element to move the frame member along the support plate from one side to the other, characterized in that it contains a comb-like device (35), containing a number of parallel strips (37)located at a distance from each other is as well, they served lots of frame element between the strips, with each strip is located between adjacent rows of ribbons, means for applying coating material on the wrong side frame element in its width as it moves on the base plate under the specified tool and squeegee (39)mounted next to the tool application for distribution over the width of the covering material and the laying on parts of the frame element between the slats for forming strips (45), each of which covers a number of ribbons to attach to the frame member, between the rows remain unclosed parcels (43) of the frame element.



 

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2 cl, 9 dwg

FIELD: textile, paper.

SUBSTANCE: system comprises mat of base, to which the first and second synthetic tapes are fixed, coated with rigidity-giving agent. Rigidity-providing agent may be attached to the first tape. Over the base mat a layer of fill is arranged so that sections of synthetic tapes protrude over. Before application of agent grass cover is combed.

EFFECT: improvement of coating hardness.

17 cl, 4 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to grain materials with multilayer polymer coating and a method of producing said material. The method involves mixing a first thermoplastic polymer with a grainy substrate to form a mixture at temperature higher than the melting point of the first thermoplastic polymer, cooling the mixture to temperature lower than the melting point of the first thermoplastic polymer and merging the cooled mixture with a second thermoplastic polymer, where the melting point of the second thermoplastic polymer is lower than the temperature of the cooled mixture. Further, the merged mixture is cooled to temperature lower than the melting point of the second polymer. Use of polymers with low melting point in the grain material can successfully lower requirements for heating and cooling, thus reducing power consumption of the process, leading to shorter duration of the cycle. The obtained grain material is used as filler for artificial coatings.

EFFECT: grainy filler has uniform and homogeneous coating, which makes the surface of the filler soft, thereby giving excellent wear resistance, good aesthetic and tactual properties, and ensures safety for the player.

45 cl, 1 ex

FIELD: chemistry.

SUBSTANCE: particulate material contains a particulate substrate having size of 0.1-3 mm and a dispersion which covers at least 50% of the surface of the particulate substrate. At the time of application onto the particulate substrate, the dispersion contains a thermoplastic olefin polymer, a dispersion medium and a stabilising compound. The dispersion medium is selected from a group comprising organic solvent, water and combinations thereof. Particulate materials meant for applying coating in form of a polymer cladding, may include mineral granular materials and sand.

EFFECT: polymer coated particulate materials obtained using the invention provide lasting wear resistance due to low surface roughness, and may be useful as filler for other fields of using artificial grass, such as golf courses and landscaping, and in insulating layers for damping vibrations and noise.

23 cl

FIELD: construction.

SUBSTANCE: according to the invention, a carrier is at least partially equipped with one additional material-component, which may expand and permanently hold the increased volume on the specified part of the carrier under influence of external stimulating actions after insertion into an artificial mat. Using the additional material-component, which may expand and permanently hold the increased volume, at least on a part of the carrier, makes it possible to create an artificial lawn with an additional damping property, which applies a positive effect at playing characteristics of the sports field, for instance, absorption of pushes, recovery of energy and deformation in vertical direction, and thanks to which, moreover, it becomes possible to reduce the number of injuries suffered by players.

EFFECT: development of a new type of an artificial lawn, using which eliminates the necessity in a filler material, without which the coating would have harmful effect at playing characteristics of a sports field.

18 cl, 4 dwg

FIELD: construction.

SUBSTANCE: fibre is made of at least one synthetic material. The invention also relates to an artificial covering, in particular, designed for use in a sports field from artificial lawn grass. The artificial covering is made from a base, to which at least fibres are attached to produce the artificial lawn grass in compliance with the invention. The invention objective consists in development of an improved fibre to produce the artificial lawn grass, which makes it possible to reduce number of injuries on the field. The fibre for production of the artificial lawn grass comprised at least one additional component of the material, which provides for increase of the permanent volume of the fibre to develop the artificial lawn grass under effect of the external stimulating action after making of the artificial covering with the fibre for production of the artificial lawn grass. The artificial covering for the lawn may be produced by means of standard manufacturing technologies and in which the fibre for production of the artificial lawn grass is foamed and converted into a damping layer after making of the artificial lawn.

EFFECT: improved playing properties or influence at playing properties of the sports field.

13 cl, 4 dwg

FIELD: construction.

SUBSTANCE: method to create and service a sport lawn includes laying a drain layer onto a base with a drainage system and a soil-vegetable layer, and performance of agrotechnical servicing of a lawn in process of operation, including operations of aeration and fertilisation of a soil layer. The base is a ceiling of a heated technical structure with process holes, agrotechnical servicing is carried out at the side of the base via process holes in the ceiling. The drainage system is arranged as capable of connection of drain pipes to a system of air underpressure for implementation of active drainage-vacuum dehydration of a soil-vegetable layer. The lawn is arranged on the ceiling of the heated technical structure erected under a sport site and serving as an accumulator of heat provision of the lawn.

EFFECT: provision of permanent even heating, efficient drainage and intensive agrotechnical service of a soil-vegetable layer of a lawn.

3 cl, 3 dwg

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