DE102008027573A1 - Carpet has two backings, where former backing has upper-sided pile fibers, and has dirt-repellent setting made by selecting pile fibers, which is broken through backing enforcing transport channels - Google Patents

Abstract

The carpet (T-1) has two backings (1,2), where the former backing has upper-sided pile fibers. A dirt-repellent setting is made by selecting the pile fibers or dirt-repellent treatment of the pile fibers, or by dirt-repellent setting of the former backing. The dirt-repellent setting is broken through backing enforcing transport channels. The upper side of the former backing contains fluorocarbon or silane based coatings.

Description

The The invention relates to a carpet with a first and if necessary, a secondary back, the onset Upper side has pile fibers and a dirt-repellent setting by Selection of pile fibers and / or a dirt-repellent treatment made the pile fibers and / or a dirt-repellent setting of the proceeds is.

Such carpets have already become known in various embodiments. It is for example on the WO 2007/068763 A1 , the DE 196 19 177 A1 , the EP 1 156 151 B1 and the EP 0 662 541 B1 directed.

at such dirt-repellent trained or equipped Carpets, especially the Teppichpols, can indeed To achieve that with rapid wiping a dirty on the carpet Liquid, for example, no significant contamination of the carpet remains. On the other hand, but can be a longer time Action cause the upper fiber layers be irreversibly polluted. If even such a liquid drying on the carpet is the pollution of the upper pile layers especially intense. Sometimes it comes to first Passing on the pollution from users who are over it to run. If carpets are only made of dirt-repellent fiber material, such as, for example, non-polar fiber material such as, for example Polypropylene produced as a pile material, although a smaller one Determine soiling tendency. Especially with regard to liquids such as coffee, tea or red wine, it comes at a time-relevant stress even with such pole material easily to irreversible discoloration.

outgoing of the illustrated prior art, the invention the task of making a carpet that has a stain-resistant setting or related has special material selection, so educate that also in unfavorable conditions an advantageous favorable Appearance results.

A possible solution to this problem is after a given the first inventive concept in the subject matter of claim 1, taking care that the dirt-repellent attitude or training of the outruns passing through transport channels is broken. According to the invention is thus the On the one hand, the carpet has already been dirt-repellent on its own or to train, d. H. with a coating or other modifying material acting on the material or the carpet in essential areas made of naturally dirt-repellent On the other hand, to build up materials, but on the other hand the passage of liquid through the ersprücken provide. On the carpet entering polluting liquid It does so without the need for separate wiping, but nevertheless can be made by the transport channels quickly slips under the fore, and thus the visible surface withdrawn. The liquid has only a short time, in which it can adversely affect the pole material. The task the transport channels is the liquid from derive the pole surface. Every lower layer of the carpet - except for a preferably provided barrier layer - can in principle be designed so that they are derived Absorbs liquid. The transport channels can thus protrude into different depths. On the one hand All transport channels can be in the same depth protrude. Alternatively, however, it can also be provided that the Transport channels protrude differently in the carpet. It is essential that the transport channels when they are about formed by fibers are held securely in the carpet. For example by gluing.

Independently of whether you look after such a polluting event at once takes care of the mopping or cleaning the carpet its desired appearance. Also the problem the carrying of pollution is significantly reduced. There a carpet by the way, already because of the here also described Durchleitungswege, water vapor permeable, the liquid evaporate there after passing through the first leg. There remaining dirt has no visually detrimental effect.

Further Features of the invention are below, also in the figure description, often in their preferred allocation to that already above treated claim concept explained, they can but also in an assignment to only one or more individual Features of this claim or independently or in one other overall concept of importance.

So It is preferred that the carpet continue, as well as many times in use, has a second back. Consequently a passage preferably results in a back gap between the first and the second back. It is preferably an intermediate layer. Basically but also a passage through the second back possible. With regard to the first mentioned Concept that the passage in the space between the Outrun and the second back done is, too preferred that the Zweirücken liquid-tight is trained.

Regarding the Erstrückens, upper side, is more preferred that this one fluorocarbon and / or silane or silicone-containing coating Additionally or alternatively, a nanoparticle can also be used be provided coating. Hydro- and / or oleophobization of the pole, be it in one of the above ways or through other impact achieved is sought. Also can the fibers still be treated with so-called stain blockers. It this is in addition to a fluorocarbon finish applied equipment, which reduces the risk of staining to reduce the fibers by dye-containing stain substances. Such additional equipment becomes, for example offered by DuPont under the trade name Zonyl. In terms of For example, a fluorocarbon-containing coating is applied to the Trade names Baygard, Scotchgard or Teflon referenced.

Further Such equipment is preferred on the production side already made. But you can also only from the end user be applied.

Regarding Fiber material that inherently dirt-repellent properties has, for example, on fibers of polypropylene or polyethylene directed.

In terms of the transport channels are preferably fibers, which are treated with the already mentioned stain blockers or by itself, by the so-called dirt-repellent material, stain resistant. Through their summary in bundles or tufts, enforcing the forerunners, form they are so capillary transport channels. Alternative or supplementary can also only punch outs, in the form of appropriate Holes or other openings or Throughways, in which Erstrücken be provided. Of the Outrun is preferably on the underside with a suction and / or storable layer provided. In case that further provided under this layer of secondary backs is, the absorbent and / or storable layer forms the Back gap. Such an absorbent layer can for example, by a spongy material and / or by so-called superabsorbents, as they are also contained in diapers, ge forms his. Such material shares can also be distributed in an otherwise based on fiber material absorbent Layer be included.

The mentioned transport channels are preferred already at introduced the production of the proceeds. You can but also after completion of the Erstrückens or the entire carpet first be introduced. For example, by Tufting, sewing or the like of such separate Means of transport (in particular the said tufts). The formation of such transport channels already in the Production can be achieved, for example, by targeted sparing of individual fibers or tufts of dirt-repellent equipment of the pole material can be achieved. Also, individual can Fibers or tufts in front of equipment The carpet with a dirt-repellent coating specifically so be equipped that of them later Dirt-repellent coating, the total applied to the carpet was, by washing or the like is removable again.

Of the liquid-impermeable secondary backing or a barrier layer provided in this regard, which advantageously can be provided may consist of many suitable materials. For example from hot-melt adhesives, PE, PP, PET films and / or water-insoluble adhesives. The connection with the prostration can be provided by gluing, but also, additionally or alternatively, by needling, Sewing, pressing or the like.

For a carpet, as it can be fundamentally based on here, should generally note the following:
The carpet may, for example, be tufted or woven in terms of the manner of manufacture. It can also be produced in the so-called "Raschel process". The pole layer may have a height of 0.1-10 cm, preferably 0.3-0.9 cm. The basis weight of such a carpet is preferably in the range between 300 and 1300 g / m ² . With regard to the surface structure, both a loop and a sliced velor or a combination thereof may be provided.

In terms of Materials are synthetic fibers of PA, PP, PE, PAN, PES, PET, Carbon fibers, lactic acid fibers and beyond all other synthetic fibers suitable for carpet manufacture possible. Also, carpets are based on natural Fibers possible, such as cotton, silk, jute, Hemp, ramie, linen, wool, cellulose fibers etc. Also semi-synthetic Derivatives such as viscose, lyocell. The fibers, of course, synthetic or semi-synthetic, may be of parent material or recycled material or mixtures thereof. she may be acidic or basic dyeable or be yarn-dyed or have a combination thereof.

With regard to the support material, a height of 0.3-10 mm, more preferably 0.2-3 mm is preferred. The weight per unit area is between 50 and 450 g, more preferably between 80 and 140 g / m ² . It may be a fleece, felt, knitted, knitted, woven or foil material, for example act. With regard to the basic materials, reference may be made to the above-mentioned materials for the pole layer.

The optionally further provided fixing layer, for fixing the pile material in the outreach, preferably has a thickness between 0.1 and 3 mm, more preferably between 0.5 and 2 mm and a basis weight between 100 and 1000 g / m ² , preferably 250-450 g / m ² . The fixing layer, which may consist for example of a latex compound, PVOH, PVAc, polyacrylate, EVA, PE, PP, epoxide, PU, etc., may be, for example, patted, foamed, sprinkled, calendered or melted.

Further, a laminating layer is preferably provided, which may have a height of 0.1-10 mm, preferably 0.5-5 mm. This at a basis weight of 100-4000 g / m ² , preferably 300-2500 g / m ² . This can also be melted about, glued or foamed. Suitable materials are PE, PP, PET, recycled, EVA, resins, PVOH and PVAc.

The secondary backing preferably has a height between 0.2 and 30 mm, more preferably between 0.5 and 10 mm. This at a basis weight of preferably 100-2000 g / m ² , more preferably 100-1100 g / m ² . It can be made as a spunbond, needlefelt, felt, woven, knitted, foam or combination thereof. With regard to the materials, reference is made, for example, to the materials already mentioned above for the pole layer. In addition, a foam material and / or a superabsorber already mentioned may be provided here. With respect to a woven carpet arise in principle the same proportions in terms of dimensions. Such can be produced in terms of manufacture as a shaft fabric, jacquard fabric, Axminstergewebe or Wellenfachgewebe example. With regard to the materials, reference is made to the aforementioned materials.

With regard to the base chain and the weft, a yarn count of 20-8000 dtex is preferred, as monofilaments or as a twist. The basis weight can be between 100 and 2000 g / m ² . The production of the yarns can be done by spinning or twisting. With regard to the materials, reference is also made to the above-mentioned materials on the pole.

Regarding of the pole material, which is preferred for forming the transport channels is used, it may be staple fiber yarn, BCF yarn, twisted or Filament yarn act, for example. BCF yarn refers to a textured carpet endless yarn (Bulked continuous filament). It is usually made of polyamide or polypropylene filament yarn.

The Yarn can be finished as a single yarn, twisted, multifilament filmed, blown, intermingled, smoothly fixed, hairstyle fixed, upsetting textured or combined in combination, for example be provided. The rotation (S and Z) may be 30-400 T / m, preferably 50-300 T / m. The fineness of the thread can be between 10 and 8000 dtex or preferably 10-6800 dtex lie.

In terms of Of all the fibers mentioned here, the fiber cross-section can vary be, for example, round, oval, trilobol, hollow, filled etc.

Summarized or as a general concept is the subject of Invention to a combination of hydrophobic and / or oleophobic Pole material with - but preferably not necessary - hydrophilic Polaterial to achieve an automatically cleaning Carpets due to transport processes of the liquid from the pole area under the Erstrücken. This is preferred combined with an absorbent layer around the back of the carpet.

For example, 0.05 to 100 transport channels can be formed per cm ^{2 of} carpet surface. This specified numerical bandwidth also includes all intermediate values, in particular in one-hundredth steps, ie 0.06 to 100 transport channels or 0.05 to 99.99 transport channels per cm ² etc.

Also the numerical values otherwise stated above Bandwidths close - as far as such not anyway are given as examples - all intermediate values as revealed.

below the invention is further with reference to the accompanying drawings explained, but only exemplary embodiments represents. This shows

1 a schematic cross section through a carpet of the first embodiment and

2 a cross section through a carpet of the second embodiment.

Illustrated and described with reference first to 1 in a cross-sectional view of a carpet T ₁ , a Erstrücken 1 and a second back 2 has, with one between the erring 1 and the second back 2 trained back-space 3 in the form of a storage layer.

The onrushing 1 is in more detail from one in a first plastic coating 4 absorbed tissue 5 and one with the first plastic coating 4 combined second plastic coating 6 together. At the base fabric 5 are pile threads 7 held, manufactured in the tufting process. For further construction, in particular the Erstrückens example, the already mentioned above WO 2007/068763 referenced, which is hereby incorporated in full content in the disclosure of the present application, also for the purpose of incorporating features of the prior publication in claims of the present application.

Below the Erstrückens 1 the storable layer is provided. It may be, for example, a foam material, but also a nonwoven material or a fabric or knitted fabric. Optionally, an absorbent may be incorporated in the storable layer or it may also consist thereof, at least substantially.

The lowest layer is the already mentioned liquid-tight barrier layer 2 intended.

The pile threads 7 and the onrushing 1 , in particular its surface, are dirt-repellent equipped. This according to one of the possible methods, as described earlier.

The formation of transport channels are the main reasons 1 interspersing and in the back distance 3 protruding tufts of fibers 8th intended. These also form transport paths for a liquid due to capillary action. The liquid can thus by the Erstrücken 1 through the back gap 3 reach. The tufts 8th are also here by the Erstrücken 1 supported.

In 2 is in one of the 1 corresponding cross-sectional view of a carpet T ₂ shown. The carpet T ₂ differs from the carpet T ₁ in that the ersprücken 1 only by an integral layer, plastic coating 4 , is formed.

The following functional sequence results for both carpets:
If liquid on the carpet T ₁ , T ₂ occurs, this is immediately due to the through the tufts 8th formed suction channels (or possibly even more or alternatively provided, acting as suction channels measures, such as targeted in the Erstrücken 1 introduced through holes) in the back space 3 transported, where it spreads and finally dries. The finished carpet pile remains largely untouched by the liquid and is dry and can be recycled immediately. Only on the upper pile layers, which had direct contact with the liquid, can a minimal amount of soiling be left behind, which can be completely removed with a cloth.

All disclosed features are essential to the invention (in itself). In the disclosure of the application is hereby also the disclosure content the associated / attached priority documents (Copy of the advance notice) fully included, too for the purpose, features of these documents in claims present Registration with.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - WO 2007/068763 A1 [0002]
• - DE 19619177 A1 [0002]
• - EP 1156151 B1 [0002]
• EP 0662541 B1 [0002]
• WO 2007/068763 [0032]

Claims (14)

Carpet with a first step ( 1 ) and optionally a secondary backing ( 2 ), with the outbreak ( 1 ) on the upper side Polfasern ( 7 . 8th ) and a dirt-repellent setting by selecting the pile fibers ( 7 . 8th ) and / or a dirt-repellent treatment of the pile fibers ( 7 . 8th ) and / or a stain-resistant attitude of the groundbreaking ( 1 ), characterized in that the dirt-repellent setting is broken by the outruns passing through transport channels. Carpet according to one or more of the preceding claims, or in particular according thereto, characterized in that a secondary backing ( 2 ) is provided. Carpet according to one or more of the preceding claims, or in particular according thereto, characterized in that the secondary backing ( 2 ) is formed liquid-tight. Carpet according to one or more of the preceding claims, or in particular according thereto, characterized in that the ground ( 1 ) has at least on the upper side a fluorocarbon and / or silane-containing coating. Carpet after one or more of the preceding Claims, or in particular according thereto, characterized that a nanoparticle-containing coating is provided. Carpet after one or more of the preceding Claims, or in particular according thereto, characterized in that fibers treated by stain blockers are provided. Carpet according to one or more of the preceding claims, or in particular according thereto, characterized in that a transport channel through the Ersprücken ( 1 ) and in the back space ( 3 ) projecting fibers ( 8th ) is formed. Carpet after one or more of the preceding Claims, or in particular according thereto, characterized the fibers form a capillary transport path. Carpet according to one or more of the preceding claims, or in particular according thereto, characterized in that the transport channels in the production of the ground ( 1 ) are introduced. Carpet after one or more of the preceding Claims, or in particular according thereto, characterized that the transport channels after completion of the carpet T be introduced. Carpet according to one or more of the preceding claims, or in particular according thereto, characterized in that in the back space ( 3 ) liquid-absorbent material is arranged or this is formed thereby. Carpet after one or more of the preceding Claims, or in particular according thereto, characterized that for forming the transport channels individual fibers or tufts of dirt-repellent equipment be spared the pole material. Carpet after one or more of the preceding Claims, or in particular according thereto, characterized that for forming the transport channels individual fibers or tufts in front of an equipment of the carpet be equipped with a dirt-repellent coating so that of them the dirt-repellent coating by washing is removable again. Carpet after one or more of the preceding Claims, or in particular according thereto, characterized that per square centimeter carpet surface 0.05 to 100 Transport channels are formed.