DE19914337B4 - Flooring made of carpet - Google Patents

Abstract

Flooring (10, 30) of carpet having a carpet carrier (32) with a pole layer (34) on top, a layer (38) of an elastomeric material on the underside (36), one on the Bottom-mounted mesh fabric (12) with a self-adhesive Coating (20, 22, 46), characterized in that the the threads (14, 16, 40) existing mesh fabric (12) in the elastomeric material (38) and the self-adhesive coating (20, 46) the outer surface (44) the mesh fabric (12) is arranged and essentially only the Areas of self-adhesive coating (20, 46) on the thread surfaces (44) of the mesh fabric (12) are applied, contribute to adhesion, and the intermediate regions (18) between the grid yarns (14, 14) 16; 40) substantially free of the self-adhesive coating are.

Description

The The invention relates to a floor covering made of carpet, which is a self-adhesive Layer on the bottom has.

Carpets are usually misplaced by that the subsurface, such as a cement floor, applied liquid adhesive material will, with that afterwards the carpet is glued.

From the EP 104 305 A2 is a carpet known, which already has on its underside an adhesive layer, which has been factory provided with a peelable film.

on site The carpet is placed on a prepared floor glued immediately after removing the protective film.

The Carpet arrangement known from the EP document can be one such Adhesive layer over the entire surface or even part of the area, for example, in points or edge regions. Nevertheless, they are the order surfaces either at the punctiform Arrangement formed too large or in the flat Arrangement of the provided throughout that relative size Adhesive areas are provided on the underside of the carpet. This has the consequence that after a sticking of the carpet, a detachment of the carpet only with Difficulties can occur, either adhesive residues immediately remain on the floor or screed and the like be deducted from the ground. This results in either a partial destruction of the Carpeting and a lingering the glue that needs to be peeled off the ground again, or but a destruction the soil surface even.

From the German utility model ( DE 79 04 078 U1 ) a carpet carpet is known, which has on the top of a walking layer and on the bottom a soft foam backing. Such a web is not for the object area, ie for a highly-strained area (offices, public buildings udgl.) Can be used, as a foam backing is not suitable as a stabilizing layer for such high-stress areas.

Of the Well-known carpet flooring is now supposed to work with a network that a permanently elastic adhesive is provided, are coated on the bottom, around this carpet floor at the bottom, but reversible for removal to glue.

For heavily loaded areas another carpet floor construction is used, in which the top-side textile pile layer is dimensionally stabilized on its underside. For this purpose, a rubber-like coating, usually a latex layer, is applied to the textile underside, in which a dimensionally stable net-like fabric is inserted. The fixation of this stabilizing tissue within the rubbery layer, which also contributes to the stabilization, now gives this carpet flooring the stabilization properties that are desired in the object area. However, such a carpet usually has to be glued to the floor or braced on the edge area, which causes the problems mentioned in the introduction. Such a carpet construction is for example from the DE 33 47 598 C1 known.

The US 4,405,668 describes a flooring that is provided with a self-adhesive coating on the bottom. The self-adhesive coating comprises a mesh fabric of a plurality of threads, wherein the threads are completely enclosed by an adhesive layer. The adhesive layer serves, on the one hand, for fastening the mesh fabric to the floor covering and, on the other hand, for fastening the floor covering connected to the mesh fabric to the floor. The known floor covering in particular has the disadvantage that the adhesive layer can penetrate the textile upper layer. Furthermore, it can lead to unfavorable interactions between the adhesive layer and the bottom of the floor covering, which can lead to a weakening of the connection.

The DE 33 47 598 C1 describes a floor covering, on the underside of a self-adhesive layer is arranged. To reinforce the known floor covering a textile mesh is inserted into the self-adhesive layer, which interrupts the self-adhesive layer on its downwardly facing surface grid-shaped.

The DE 1 962 517 U describes a floor covering with an embossed undercoat, the undercoat having on the raised parts a pressure-sensitive adhesive layer.

As a result, The invention is based on the object, a floor covering made of carpet for the Refine object area such that it is particularly durable and without big ones Laying effort stably laid and practically without destroying the Underground and flooring can be removed again.

The solution the task is achieved by a carpet flooring with the features of claim 1.

Surprisingly let yourself the carpet according to the invention both easy to lay and after prolonged use without problems pull off the ground again, i. the carpet with the self-adhesive Coating remains essentially intact even when peeled off and does not take cement floor components, especially screed components when pulling with. On the other hand, however, also remains when peeling virtually no hot melt adhesive on the floor.

According to the invention, a carpet already known for the object sector, which has a pile layer on the upper side and a latex layer with an embedded textile stabilizing network on the underside, is provided with an adhesive layer in such a way that largely only the outer surfaces of the fabric can be used for bonding. However, the intermediate areas of the fabric, which are partially filled with the adhesive layer, largely do not contribute to the bond. As a result, the adhesive layer is largely only on the outer surface of the thread, which forms the net-like fabric in weft and warp. So there is no impregnation of the thread and thus no interaction of the adhesive with the latex layer, which would be disadvantageous under certain circumstances. In particular, the adhesive layer does not strike the textile top layer. Likewise, the adhesive layer can not damage the foam backing of a carpet floor, as in the case of the web DE 79 04 078 U the case in which the adhesive layer fixing the carpet to the substrate can also remove the foam layer when the carpet "wanders", ie is pushed sideways.

Surprisingly let yourself especially the arrangement according to the invention with a tufting layer on top, a latex interlayer and a textile net-like stabilization layer on the underside along with the partial application of glue on the threads of the net-like Gebweben embarrassed, because only one the Adhesive layer covering polymeric protective film are deducted must, um to fix the carpet on the substrate by means of an adhesive layer. One However, such fixed carpet can - unlike the usual bonded carpets - without much difficulty be removed from the ground again, with the result that the underground, especially the screed layer, remains substantially unhurt. As a result, must also virtually no repairs to the screed after removing the Carpet according to the invention be made.

be noted is that the Carpet according to the invention on the one hand by a non-expert quickly and without further Tailored adhesive application and glued after removing the film On the other hand, it can also be disposed of without major problems can. After all should not be out of synonymous be careful that the when filling the floors with a liquid Glue emitted vapors are superfluous when using the carpet according to the invention, so that neither the laying staff still the later User of the carpeted floor space of such glue vapors be adversely affected.

Of the Carpet according to the invention is the factory with the adhesive layer, in particular a pressure-sensitive hot melt adhesive provided, applied to the one protective film of a polymer which is easy to remove on the application side.

by virtue of the partial application of adhesive on the outer surfaces of the threads of the mesh fabric is that for the bonding responsible area on the official area the back about 40 - 75 %, preferably about 50-70 %. Because these surfaces only grid-shaped (Reticulated) are trained, there is a lack of continuous cohesion the adhesive surfaces, so that opposite one uniform adhesive surface a significantly improved peel behavior of such produced Carpet is achieved without, however, disadvantaged the entire bond is.

Especially advantageous is the combination of the adhesive layer with the stabilizing acting net, on the one hand in the elastomeric layer (for example Latex layer) is anchored and on the other hand as an adhesive surface for the textile Carpet floor is used. Only this combination grants the Carpet the desired high laying stability, what with an additional pasted net, which had previously been completely soaked with adhesive is, can not be achieved because such a glued carpet still unstable, i. emigrated.

To relocate the carpet, it must therefore only in the usual way to a prepared clean floor, which may have been compensated with filler, spread, in which case the appropriate adjustment measures (cutting corners and the like.) Must be made. If the carpet flooring has then been adapted accordingly to the room, then the protective film can be removed, so that immediately the adhesive effect between the underside of the carpet and the top of the floor can take place by seizing the publisher. In order to achieve optimum adhesion between floor and carpet, then only a uniform pressure load, for example, with a pressure roller or by the said carpet floor publisher must be made become.

One such laid carpet according to the invention is with the same quality on the floor, like a carpet with a separate adhesive attached but much cheaper and easier to lay than carpets without adhesive coating, by means of pressure-sensitive adhesive, that of a Teppichbodenleger be applied to the floor, be attached. insofar the carpet according to the invention is suitable especially good for home improvement.

The used according to the invention Mesh is usually already on carpets the bottom is fixed in the elastomeric coating before and is preferably made in plain weave.

Of the Diameter of the grid threads in the circular Cross-section is in practice between 0.5 and 1.5 mm, preferably at about 0.6 - 0.9 mm, the diameter of weft and warp threads being different can be. Usually be between 25 to 35 threads each 10 cm processed in the tissue.

Between the grid threads there is a free area, the individual grid threads, seen in the parallel direction, approximately between 1 and 3 mm, preferably are spaced approximately 1.5 to 2 mm apart. Here it must be considered that the Threads during the Carpet production by rolling from a circular cross-section are pressed in a nearly rectangular cross-sectional shape "flat", so that in total the surface conditions Threads / gap too to the detriment of the latter.

at corresponding choice of the grid construction according to the invention leads to that 25 - 60% of the Grid total area on the thread-free spaces does not apply preferably about 30-50 % of grid area from the gaps is taken.

The Adhesive coating material may extend over the entire grid surface, wherein that in the gaps between the grid threads material at the adhesion to the floor substantially not participates.

Preferably is therefore the essential part of the self-adhesive material on the thread surface, i.e. that part of the thread surface that faces the floor is. This part is usually at least 1/4, preferably 40-75% of the total surface area of back of the carpet flooring. Because of the pressure on the carpet the thread surface is "rolled wide", so that this Thread area in total takes part in the liability.

According to one advantageous embodiment, the proportion the total area of the self-adhesive coating for adhesion is 40-75% of the total adhesive area Grid total area, preferably 50-70 % Grid total area (calculated from thread surface plus thread space).

As an applicable material for the coating of the mesh fabric, hot melt adhesives based on acrylate or EVA can be used. The application rate is usually between 50 and 150 g, preferably about 70-100 g per m ² total area, said total area practically corresponds to the thread surface of the grid.

Compared to a full-scale adhesive application, as he, for example, from the EP-104,305 or the laying technique is known in the automotive industry, the lattice-shaped adhesive assembly according to the invention, which is formed linearly on 2 axes over the entire underside of the carpet, the advantage that only a linear adhesion during removal must be repealed, while in the full-surface or in certain areas full area adhesive application larger areas must be deducted, which entails the risk of detachment of the carpet back or the screed layer of the soil after.

The Drawing explained The invention.

It demonstrate:

1 a view from below of a first embodiment of a carpet flooring,

2 a section along the line II-II through the carpet flooring according to 1 , wherein only two threads of the mesh fabric are shown enlarged in section, and

3 a section similar to that of 2 by a second embodiment of a carpet flooring.

In 1 is a carpet flooring 10 partial, seen from below, shown. This carpet flooring 10 has a mesh fabric 12 on, which is applied to the back of the remaining carpet, for example by sticking.

The mesh fabric 12 has regularly arranged warp threads 14 and wefts 16 on, each between the warp threads 14 and the wefts 16 between areas 18 are formed, are free of threads or thread edge areas.

How out 2 it can be seen is on top of the threads 14 . 16 a layer 20 made of an adhesive, advantageously hot-melt adhesive, which covers the surface of the thread at least 1/4, advantageously between 40 and 50%. According to a first embodiment, as in 2 only on the strings 16 is shown, is the coating 20 practically provided only on the thread surface.

According to another embodiment, there is another part of the coating 22 as dashed in 2 is shown, partially or completely in the space 18 between the threads 16 and 18 however, is not plan with the through the mesh fabric 12 and the partial coating 20 formed overall surface of this grid arrangement. Out 2 this is evident from the fact that the partial coating 22 is formed so that it can not participate in the adhesion of the grid to a floor, not shown. This type of intermediate coating 22 , whole or partial, in the intermediate area 18 can result in manufacturing technology, but is less preferred over the embodiment, which is a surface coating 20 on the warp thread 14 and the weft 16 having.

Otherwise, in 2 With 24 the rest of the carpet 10 (with back, pile and the like) shown.

Furthermore, is schematically with 26 a release liner shown for protection purposes on the coated mesh fabric 12 is attached, so that the carpet flooring 10 roll up.

3 shows a further embodiment of a carpet flooring 30 in enlarged cross-section, with its view from below that of 1 corresponds, so that reference is made to this.

The carpet flooring 30 has a carpet carrier 32 textile nature, in the pile material 34 is stabbed. The backside 36 of the carpeted floor 32 is with a coating 38 made of an elastomeric material, advantageously latex. This coating 38 gives the carpet flooring 30 a high tensile stability. The latex application is usually between 900 and 1200 g / m ² .

Instead of latex other elastomeric materials, for example polyurethane, EPM or EPDM coatings can be provided which have the same elastic properties as latex. The directional stability of the carpet 30 is improved by a mesh fabric in the coating 38 is inserted, wherein of the mesh fabric in 3 only the warp or weft threads 40 are shown in section.

Advantageously, the grid has approximately 28-32 weft and warp threads per 10 cm, which are each approximately between 0.6 and 0.8 mm thick. In 3 are the threads with a circular cross section, idealized shown. In the real case, however, the threads are squeezed by a calender treatment and assume a substantially oval shape, so that a 0.8 mm thread in cross section can be quite 1.3 mm wide. In this respect, the hemispherical outer surface of the thread merges into a nearly flat outer surface.

Such a flattened thread structure is with 42 in 3 shown.

The elastomeric layer 38 remote outer surface 44 of the thread 40 / 42 is with an adhesive layer 46 Mistake. The outer surface 44 extends at least over half of the outer circumference of the thread 40 / 42 ie at most half of the total surface of the thread 40 / 42 is in the elastomeric layer 38 embedded. In that respect, the entire non-embedded outer surface has 44 of the thread 40 / 42 Adhesive function due to the adhesive layer 46 , An advantage is a tough acrylate-based adhesive, which has a viscosity of about 17 seconds, measured by the method "Ford" in a 6 mm cup.

The coating amount is about 85 g / m ² adhesive per carpet back.

For improved handling of the carpet flooring this is on the back with a release liner 48 provided the same function as the aforementioned release liner 26 having. The same is the case of the warp / weft threads 40 composite mesh fabrics with the aforementioned mesh fabric 12 equal in function.

For laying the carpet flooring 30 First, a blank is made according to the floor assembly. Carpet is then rolled out in the room and then peeled off the peel-off film from the edge. The carpet can then be adhered by sticking or rolling directly to the floor.

Such a carpet flooring 30 is dimensionally stable and is also suitable for rooms with high loads, such as offices, entrance halls and the like.

The Material of the mesh fabric is not critical and is usually from threads, composed of a variety of multifilament polymeric material are. In this case, as the polymeric material, any in the production used by floor coverings Material are used, for example, polyethylene, polypropylene, Polyester, polyamide or the like.

When Material for The adhesive layer has proven to be a beneficial hot melt adhesive proven, for example, polyurethane, acrylate or EVA-based.

Claims (7)

Flooring ( 10 . 30 ) of carpet having a carpet carrier ( 32 ) with a pole layer ( 34 ) on the top, one layer ( 38 ) of an elastomeric material on the underside ( 36 ), a grid fabric attached to the underside ( 12 ) with a self-adhesive coating ( 20 . 22 . 46 ), characterized in that the from the threads ( 14 . 16 ; 40 ) existing mesh fabrics ( 12 ) in the elastomeric material ( 38 ) and the self-adhesive coating ( 20 . 46 ) on the outer surface ( 44 ) of the mesh fabric ( 12 ) and essentially only the areas of the self-adhesive coating ( 20 . 46 ) on the thread surfaces ( 44 ) of the mesh fabric ( 12 ), contribute to adhesion, and the intermediate areas ( 18 ) between the grid threads ( 14 . 16 ; 40 ) are substantially free of the self-adhesive coating. Floor covering according to claim 1, characterized in that the mesh fabric ( 12 ) in plain weave from weft and warp threads ( 14 . 16 ; 40 ) is made. Floor covering according to one of claims 1 to 2, characterized in that the diameter of the grid threads ( 14 . 16 ; 40 ) is between 0.5 and 1.5, preferably about 0.6-0.9 mm. Floor covering according to one of claims 1 to 3, characterized in that the spacing of the grid threads ( 14 . 16 ; 40 ) is from each other about 1-3 mm, preferably about 1.5-2 mm. Floor covering according to one of claims 1 to 4, characterized in that the coating ( 46 ) 40-75, preferably 50-70% of the total area of the rear side ( 36 ) in the form of the grid coating ( 20 . 46 ) covered. Floor covering according to one of claims 1 to 5, characterized in that about 50-150 g / m ² adhesive on the underside of the floor covering ( 10 . 30 ) are applied. Floor covering according to one of claims 1 to 6, characterized that the adhesive is a viscoplastic Glue is.