DE19853541A1 - Perforation of hooked strip forming self-adhesive fastener used e.g. to attach carpets to floor, prevents air inclusions which detract from appearance and self-adhesion to floor - Google Patents

Abstract

Perforations (18) are made in the hooked strip (1), using an energy beam, or thermo-mechanical means. The perforations continue through the self-adhesive layer (7). An Independent claim is included for the hooked strip itself.

Description

The invention relates to a hook track for one consisting of a hook track and a loop track Velcro fastener, the hook web made of an art fabric, such as polypropylene or Polyethylene, and film-like, preferably in extrusion sionsverfahren, is formed, further above elements of arrest in the form of hooks, mushroom heads or the like are formed, whereas the sub side smooth with an applied self-adhesive layer is formed, as well as a method for Production of a hook track.

Such hook tracks for Velcro are knows. For example, such hook tracks for Laying of flooring used. The forms Underside of such coverings as carpets, carpet tiles the loop track interacting with the hook track. The hook web, which has a protective cover, is seated especially in the case of a smooth laying reason in all Usually pretty firm. Since it is wider at hookbah air pockets can easily occur the lack of repositionability is disadvantageous. The optical exterior is disturbed because of the air conclusions on the tread of the carpet or of the carpet tiles. On inspection it can even such air pockets migrate.

It is known from US Pat. No. 5,382,462 with a Bottom surface can be glued to a relatively large hook track To break through holes, this in the sense of sieve-like  Plates. The holes have a going up to 50 mm Diameter size on. The one on such a breakthrough the missing portion goes up to 70%. The normal case is 50%. There is a possibility here that trace the hole contours on the carpet side.

The object of the invention is that described above State of the art inherent inadequacy clear out simple means.

This task is first and foremost a hook track with the features of claim 16 solved, which is based on that the hook track Has through holes that also the underside Apply the applied self-adhesive layer. So can the low-cost film-like structure of the hook track, as well as the technique of self adhesive coating; nevertheless is an outlet route for the any trapped air created. The otherwise too Bulges leading to air entrapment either arise not at all or not so easily or is quickly removed builds, at the latest when walking on the installed floor covering total The self-adhesive layer is also permeable, so that it's not a tear from adhesive membrane membranes requirement. The corresponding total perforation comes furthermore towards a sustainable drying tendency, For example, if the flooring is not quite on dried screed was applied. It is so a constant breathing ability. On the other hand suffers the stability of the film-like body of the hook do not train. The perforation brings certainty at best limits a compliance with the areas narrowing. The dome-like bulge is best through the perforated plate-like perforation element compensates. Also by the treatment agent of such coverings  Secure "gas chambers" are excluded. On the other hand the through holes can be kept so small that practical in the event of later wet cleaning diffusion-like conditions exist. Further The invention proposes that the width of the Hook path the diameter dimension of a common air inclusion between hook track and assigned floor area by more than five times. At schma The air flows to shorter latitudes practically for a short time side of the belt accessible to and can become free there. The perforated plate-like Structure of the hook sheet and self-adhesive layer proves turned out to be particularly effective when a through hole has a diameter of 1 mm to 5 mm. Such On the other hand, through holes are in the laying also not at risk of tearing, especially since each through hole is circumscribed by a melting edge. It deals is a bulge-like accumulation that over thickness the slide goes out. This creates practically short ones Vent tube. It is also proposed that a Hole diameter to the dimension of a hook or Mushroom head is adapted such that the hole diameter about one to two times the base projection the hook or mushroom heads corresponds. To the vent connection for the trapped air still too verbes sern, can be done so that the passage also aligned one under the Cover sheet arranged on the hook path. The the floor The edge facing the surface is certainly free and the adhesive edge is also pushed back. This is optimized if the through hole is in alignment too a cover film attached under the hook track puts. So air pockets are already at Avoid wrapping the hook sheet in the roll form the. The larger the working width of the hook track, is  the perforation described is more important. This Thought is therefore also from Vor with such solutions part in which the hook web consists of at least two, by gluing along the assigned longitudinal edge channel there are interconnected single hook strips. Such a rail addition is not the subject of published utility model application 297 06 989.6. The through holes would accordingly be described there Include bene adhesive bridge. In this context The measure that the verb extension in the area of the assigned longitudinal edge one on the underside of the hook tap, the longitudinal separate foil tape connecting edge edges gebil det. It proves to be an advantage in use sticks that the foil tape with the single hook webs is glued in each case. There is also an advantageous one Characteristic in that the film strip within a thickness the self-adhesive layer is arranged. Therefore the danger that the adhesive bridge is emerging, just if cleared. It is also proposed that the Foil tape on its facing away from the single hook webs Side is covered by the self-adhesive layer. Also it is favorable that the self-adhesive layer in the area of the film strip one around the thickness of the film strip and the adhesive layer between the film tape and the individual hook strap has reduced thickness. About the usual Punching round cross-section can also be advantageous be sticky that the through hole rectangular cross cut has. Starting from this geometric Hole shape is still suggested that the passage hole is slit-like and the slit art through holes with their longer slit edges run in the longitudinal direction of the hook path. The latter favors the surface stability of the hook track when Embarrassed.  

The process of making a hook track for one consisting of a hook track and a loop track Velcro fastener, the hook web made of an art fabric, such as polypropylene or Polyethylene, and film-like, preferably in extrusion sionsverfahren manufactured, is formed, wherein arrest elements in the form of Ha ken, mushroom heads or the like are formed, whereas the underside has a smooth surface worn self-adhesive layer is there characterized in that by an energy beam or thermo-mechanical in the hook path passage solution cher are formed, which also the underside brought self-adhesive layer to enforce. A related Lich advantageous measure is that the through passage holes are formed by laser exposure the. Here the advantage of use precise control, also with regard to the depth of perforation. However, it is useful as above already hinted at also punching the cover film. Another preferred method of operation then exists in that the through holes by water jet be formed. The water jet perforation proves to be particularly economical. Furthermore is with regard to the thermo-mechanical working se proposed that the through holes through to the range of the melting temperature of the hook perforated mandrels heated to the web. Also here a full perforation is used. If immediately a counter-working way of working within the Application lies, is preferably carried out so that the Through holes from the side facing away from the hook brought here into the hook track. In this stubble-like hook field come any perforated edge ridges etc. well under. The exit page shows no increase  exercises. It is also proposed that the hook path is given a width that the diameter-Ab measurement of a common air inclusion between hooks track and assigned floor area by more than five times. It is also taken into account that a Through hole with a diameter of approx. 1 to 5 mm, preferably has 2 mm. Such sizes are gluey no longer closable. It is also ensured that a hole diameter to the dimension of a hook or Mushroom head is adjusted so that the hole diameter water about 1 to 2 times the base projection the hook or mushroom heads corresponds. There is also a Feature of the invention in that the laser beam striking through the through hole in alignment direction also attached under the hook track Cover film is detected. It acts as an enamel sign. On the other hand, the cover film can also be in the perforation should be included by the under the Cover sheet attached to the hook track also through the Through hole is detected. It is also envisaged that the hook track from at least two by gluing along the associated longitudinal edge edges joined together single hook strips are joined together. In addition is provided that the connection in the area of the assigned th longitudinal edge through a bottom of the hook sheet arranged, the longitudinal edge edges connecting, separate dertes foil tape is formed. This foil tape will glued to the single hook strips. Finally the procedure is still characterized by the measure me that the film tape within a thickness of the self adhesive layer is arranged. This avoids the step side noticeable protrusions. Finally, there is still a proposal brought that the foil tape on its the single bah side facing away from the self-adhesive layer is covered.  

Then is on a hook track for one out of a hook web and a loop web existing Velcro conclusion, the hook track be made of a plastic stands, such as polypropylene or polyethylene len, and film-like, preferably in the extrusion process ren manufactured, is formed, with further oversize elements of arrest in the form of hooks, mushroom heads or the like are formed, whereas the sub side smooth, preferably with one application NEN self-adhesive layer is provided, provided that in the hook path or in assignment of two next to each other arranged hook tracks, across the width of the hook considered web (s), one between two hook areas slit-like, extending in the longitudinal direction of the hook areas extending through opening is formed, which at a length of 20 mm, preferably 20 to 40 mm, or to to the length of the hook track, based on the area of the Hook areas of the hook track (s) a share of 0.5 up to 4%. On the one hand, this results in a practical Precautions beyond the outline of the hook path the vapor diffusion permeability. So can about Through holes beyond or instead of the through holes holes an effective moisture discharge can be achieved. Especially with wider hook lanes are preferred the through holes used; with narrower hook bah one comes with the slit or spal through opening in the hook area or the the juxtaposition. About such column is the moisture, for example, of aerated concrete quickly and effectively evacuable. Carpet, carpet or even are thus tiled with regard to the bonding Medium, mostly the self-adhesive layer, so it affects kept free of license. Increased moisture accumulation are known to arise especially in the underfloor area of wet rooms of construction, the  So floor of a room. The relatively low on through Percentage holes or through openings omitted the covered area leaves the mechanical stability corresponding hook lanes fully exist.

The procedure for laying a carpet with Velcro final arrest, being on a floor surface before pulls a screed layer of a floor, hook lanes be fastened, preferably adhesive-fastened, best made of a vapor diffusion-closed material such as polypropylene or polyethylene, he proves to be advantageous if this is done that, based on the area of the installed hook tracks in the course of laying by spacing the hook bah between them a through hole forming Leave a space of 0.5 to 4% open to vapor diffusion becomes.

The invention further relates to one on a floor surface surface of a room by means of Velcro fastening, consisting of a hook track and a loop track, paved carpet, with glued to the floor surface Hook tracks made of plastic, such as Polypro pylene or polyethylene such that, based on the Area of the installed hook strips in the course of the installation by spacing the hook paths between them the vapor diffusion opener forming the through opening Free space of 0.5 to 4% remains.

Finally, it is suggested that the hook track an intermittent center slot arrangement points. It is finally an advantageous further training achieved by the side running in the double swing pull slot arrangements.

The object of the invention is shown below two illustrative embodiments games explained. It shows:

Figure 1, the hook track according to the first game Ausführungsbei, in perspective.

Figure 2 is a greatly enlarged excerpt of the hook web in forn of a perspective image block.

Fig. 3 shows a hook web section, again in perspective, illustrating the perforation detecting the hook web and the self-adhesive layer;

Fig. 4 is a representation corresponding to Figure 3, according to which the cover film is also recorded through-hole.

FIG. 5 is a block diagram representation corresponding to FIG. 2, showing the hook path in the region of a through hole;

Figure 6 shows the hook path according to the second game Ausführungsbei, consisting of two single hook paths connected by gluing, in a perspective view.

Fig. 7 is an enlarged sectional view along line VII-VII in Fig. 6;

Fig. 8 is an enlargement of the sectional view according to FIG 7, namely covering the area VIII-VIII.

FIG. 9 shows an enlargement of the area IX-IX in FIG. 7;

Fig. 10 a hook path section, showing the evenly executed hook path perforation, having approximately circular cross-section having through holes;

. Fig. 11 is a view similar to FIG 10, rectangular, more specifically square cross section having through holes pointing;

Fig. 12 is a similar representation, with through holes in a slot-like shape;

. Fig. 13 shows the section along line XIII-XIII in Figure 11, enlarged;

FIG. 14 is a space of a structure with parallel routed hook webs, in perspective;

FIG. 15 is the laying of the carpet, stellungsart to that of FIG 14 taken in the same preparation Dar.

Fig. 16 give a parallel and transverse laying of the hook sheets, also graphically reproduced;

FIG. 17 shows a variant of the hook tracks in a representation like FIG. 14;

Fig. 18 is a top view of a further variant of the hooks, in both cases laid bonded to the floor surface, with carpet not yet assigned;

FIG. 19 is a greatly enlarged excerpt of the hook web in the form of a perspective image block;

FIG. 20 shows a block diagram corresponding to FIG. 19, showing the hook path in the area of a through hole;

Fig. 21 shows an enlargement of a lung Schnittdarstel two hook webs by a vapor diffusion space loaded send neighborhood region.

Shown and described is initially a one-piece hook track 1 with reference to FIG. 1 . The latter is extruded and consists, for example, of polypropylene or polyethylene.

The hook track 1 forms part of a surface closure, usually referred to as a Velcro closure, the other part of which is realized on the underside of a floor covering, not shown here. In this regard, primarily a nonwoven web is used that is technically assigned to the back of the lining goods. The latter forms the so-called loop path of the Velcro fastener.

There are elements 2 on the top of the hook track 1 . With regard to the arresting elements 2 , there are, for example, hooks 3 . They each change into a hook head 4 . The hooks 3 shown only as a relatively small enlarged detail are each placed side by side. There is a gap between the individual pairs of approximately the width of a pair of hooks (measured from the flat sides). The hook opening 5 paired hook 3 is aligned in opposite directions. The hooks 3 are each in a row. They form multiple rows of hooks. The corresponding row-shaped arrangement is symbolically represented by a linear structure in FIG. 3.

Instead of hooks 3 as arresting elements 2 , as can be seen from the second exemplary embodiment, mushroom-shaped or trumpet-shaped pins can also form the fastener parts. The trumpet-shaped pins are particularly clear from FIG. 8. These elements are referred to throughout the text as mushroom heads 6 .

The underside of the hook track 1 is smooth. It has a self-adhesive layer 7 . It can be pressure sensitive adhesive. The self-adhesive layer 7 allows a non-slip fixing of the hook sheet 1 having a film-like base 8 . In the stored state, the self-adhesive layer 7 is covered by a protective cover in the form of a cover film 9 . This ensures the strength of the adhesive layer. However, the cover film 9 can be removed easily. It itself forms the necessary interface. On the other hand, it can also be an associated silicone layer.

In order to form a laying system which is useful in itself, the hook sheet 1 is laid on a floor surface 10 after the cover film has been loosened. The inherent air impermeability of the film-like base 8 and mostly also the self-adhesive layer 7 , however, easily led to air inclusions between the mostly smooth bottom surface 10 and the hook web 1 . Such air inclusions resulted in bulge-like increases, which were usually clearly visible on the top of the floor coverings. Such a problem is now remedied by the fact that the hook path 1 has through holes L. These through holes L also capture the self-adhesive layer 7 of the hook web 1 attached below. The enclosed air escapes through the through holes L, be it by deliberately pressing in the bulge or when the floor covering is walked on in general.

The diameter of a through hole L is 1 mm to 5 mm, preferably 2 mm. The cross section of the through hole L can, as shown in FIG. 10, be essentially circular. The diameter there is 2 mm.

Fig. 11 shows a rectangular, more precisely square outline shape of the through hole L. One side length there is 2 mm.

The distances between the through holes L to each other are shorter in the basic version shown in FIGS. 3 and 4 than in the variants shown in FIGS. 10 to 11. The first-mentioned, relatively small perforation is arranged at a distance of 8 mm × 8 mm. However, distances of 5 mm are also conceivable, with a diameter or a side length of the through holes L of likewise 5 mm.

The variants FIGS. 10 to 12 show a larger distance between the through holes. L. The distance between the perforations arranged in rows in both directions is approximately 15 mm.

The variant in FIG. 12 reveals a slot-like design of the through holes L. These slot-like through holes L run with their longer slot edges in the longitudinal direction of the hook track 1 . The width of the slot is approx. 5 mm with a width of 2 mm. Lengths of up to 20 mm at a distance of up to 30 or even 40 mm are conceivable.

The slot-like through holes L also lie as perforation in rows in both directions.

The through holes L are produced in the hook path 1 by an energy beam or thermomechanically. For example, the through holes L are achieved with the aid of laser technology. This creates relatively small perforations. The laser capacity is defi ned so that the existing siliconized PE film, that is, cover film 9 , is not perforated, but only the PP Velcro tape, that is hook web 1 . The self-adhesive layer 7 lying in the weft direction is perforated exactly, that is to say evaporated. This means that there are no longer any obstacles blocking the ventilation path. If, however, the laser capacity is increased, completely penetrated through holes L can be reached, so that the cover film 9 is also covered.

The punching of the film-like base 8 of the hook web 1 together with the middle punching of the cover film is shown in FIG. 4.

Even in the first-mentioned production method, according to which the through hole L evacuates the adhesive stains in the aligned alignment, the cover film 9 attached under the hook track is also included in such a way that there are action marks remaining on it, which clearly indicate the corresponding production method, if the through hole is otherwise in alignment, the cover sheet 9 , which is attached under the hook track, is also technically detected.

The perforation inclusion up to the first degree creates a clean lower hole edge 11 on the side facing the self-adhesive layer 7 and also leads to displacement of the adhesive hole edge back into the layer gap. In addition, the through hole L is delimited by a melting edge 12 (see FIG. 5).

Said melting edge 12 can be seen as a raised crater rim, the annular bead of which clearly projects beyond the top of the film-like base of the hook track 1 . This leads to melting and between the arresting elements 2 . Overall, there is a short tube body with jag-like hook protrusions above the ridge. This also results in ventilation shafts 13 that are open on the side and on the transverse side.

Regarding the clear diameter of the through holes L, orders of magnitude are also conceivable in that a hole diameter approaches the dimensions of a hook 3 or mushroom head 6 , in such a way that the hole diameter is approximately one to two times the base surface projection of the hooks 3 or mushroom heads 6 speaks. This is mentally comprehensible from the representation according to FIG. 5 bezüg Lich the hooks or hook shafts there.

The width of a hook track 1 comprises at least the diameter dimension of a conventional air inclusion between hook track 1 and the associated floor area 10, exceeding by more than five times. Because only with rela tively large-area hook webs 1 with an otherwise hermetically closed film-like base 8 such air accumulations can arise. At smaller widths, the risk of significant air entrapment is less or not significant.

Another preferred perforation technique embodied according to another method in that the through passages L are formed by water jet. The holes can be cut precisely, especially achieving the hole cross outlined above cuts.

Another, advantageously applicable process technology is that the through holes L are formed by perforated mandrels heated to the melting point of the hook web 1 (not shown in more detail).

As can be seen from the formation of the melting edge ( FIG. 5), the holes in the through holes L are introduced into the hook path from the side facing away from the hook 3 . This can also be seen in FIG. 13, shown as arrow x. There the cutting ridge is slipped in the direction of the hook 3 in the area of the hole cross section. The corresponding spout bears the reference number 9 '. Your grommet edge continues against the hole zone also cleared in the direction of the hook 3 . There is, as it were, a pocketing of the layer portion 7 'near the hole in the self-adhesive layer 7 . The base 8 , which forms a hole contour, provides the contact surface for the lip spout 9 '. This is favorable for stockpiling, since the self-adhesive layer 7 is retained in the correct position, ie it cannot bleed out. There is also no creeping clogging of the through holes L.

If the perforation is in the opposite direction there is the same pocket in lip (not shown).

Fig. 6 shows a larger area hook path 1 . There is a hook track consisting of two single hook tracks 1 'and 1 "with the basic structure already described above. A third and fourth hook track could be docked in a corresponding manner along the longitudinal edge. The attachment elements 2 are present here in a mixed form that hook 3 and mushroom heads 6 alternate with each other, details can be found in the above explanations.

In this second exemplary embodiment, single webs 1 'and 1 "with a width of approximately 32 cm are shown, which can be produced inexpensively in the course of mass production. In order to achieve a double width, for example, the single webs 1 ' and 1 " along their length to facing longitudinal edges 14 and 15 with a film strip 16 with the associated edge areas of the bottom sides of the individual hook webs 1 ', 1 ", respectively. Alternatively, a Verschwei can here Ssung of the film strip 16 with the individual hook webs 1', 1" of the hook web 1 carried out to be.

In the exemplary embodiment shown, the film strip 16 has a width a of approximately 5 cm, with a total thickness b, including an adhesive layer 17 of approximately 0.5 mm.

The hook web 1 produced by assembly also has the self-adhesive layer 7 on its underside formed by the film-like base 8 . It is applied so that it also covers the area of the film strip of 16 . The film strip 16 is thus embedded in the self-adhesive layer 7 , the self-adhesive layer 7 in the region of the film strip 16 also having a thickness c reduced by the thickness b of the film strip 16 and the adhesive layer 17 (cf. FIG. 9). Thus, the thickness b of the film strip 16 and its adhesive layer 17 is compensated for by applying the self-adhesive layer 7 . The latter is applied accordingly less in this area. As a result, the total thickness d (see FIG. 8) of the self-adhesive layer 7 outside the area of the film strip 16 corresponds to the addition of film thickness b and reduced adhesive layer thickness c. The adhesive side of the self-adhesive layer 7 consequently has a flat surface, thereby making it secure that after sticking the hook web 1 according to the invention onto the bottom surface 10 the web 1 ', 1 "connecting foil tape 16 does not apply, which results in an uneven surface of the hooks train 1 would result.

The adhesive force of the self-adhesive layer 7 between film belt 16 and the lower sides of the individual hook webs 1 ', 1 "is at least as large as that of the self-adhesive layer 7 between the hook web 1 and the bottom surface of the 10th This ensures that the hook web 1 at a deduction from the floor surface 10 can be continuously deducted continuously.

The self-adhesive layer 7 is also to be freed from the covering film 9 here before laying. This is shown in part in Fig. 7, where the direction of withdrawal is indicated by an arrow.

The hook web 1 formed from the single hook webs 1 ', 1 "is perforated in the same way. The reference numerals are used analogously, partly without repetitions of text. The melting bead 12 is also clearly visible. The through hole L comprises outside of the film strip 16 and the adhesive layer 17, the self-adhesive layer 7 as well as in the area of the film tape 16 and the adhesive layer 17 , shown continuously up to the top of the protective film 9. Even that can be perforated throughout.

The hook sheet assembly according to further Fig. 14ff is directed to a laying method after which the hook webs 1 kingdom a virtually full-surface coverage of the Verlegebe, ie, the bottom surface 10, form. The strip-shaped hook-and-loop adhesive is laid in a relatively close neighborhood.

Taking into account / achieving a vapor diffusion permeability 1 through openings 18 are formed in the hook path 1 or in association with two adjacent hook paths. Depending on the width of the hook track 1 , the described through-holes L avoiding air pockets can also be present on this.

As can be seen, for example, in FIG. 14, the area surrounding the hook track 1 is practically included in the formation of the through opening 18 .

Providing the through opening 18 in the hook track 1 is shown, for example, in FIG. 17.

Returning to the solution variant Fig. 14, the configuration is specifically such that, in association with two hook tracks 1 arranged next to one another across the width of the hook tracks 1 , viewed between two hook areas, slit-like through openings 18 are formed which extend in the longitudinal direction of the hook tracks 1 a length of at least 20 mm and more, based on the area of the hook area of the hook webs 1 , taking a share of 0.5 to 4%. Realistic are 30 to 40 mm up to a length of the hook lengths.

A portion of 4% to be regarded as a practically upper limit leaves the hook track 1 itself the intended use stability and laying resistance. There is a highly resilient basis. On the other hand, the interruption factor is so low that the Durchgangsöffnun conditions 18 not on the laid carpeting, for example se a carpet 19 looms. In the drawings, the width of the Durchgangsöffnun gene 18 is exaggerated for better explanation.

As an adhesion promoter of the hook sheet 1 , a self-adhesive layer 7 which is protected by means of the cover film 9 until it is installed can also be used here.

Fig. 16 specifies a type of installation, in which the strict parallel slot-leaving, exclusively lengthways oriented, ie lying in one direction side by side of the hook strips 1 in a space 20 of construction is abandoned in favor of an alternating transverse direction of hook strips 1 . Thus, in addition to the through openings 18 delimited by longitudinal edges or edges of the hook webs 1 , those with participation also defining the width of the band, the front ends or transverse edges or edges of the hook webs 1 formed through openings 18 . Here, too, attention is paid to the above-mentioned relationship to the hook areas in the emergence of the clearances creating the through openings 18 .

The cross section shown in FIG. 21 through a zone leaving a through opening 18 clarifies the space taken into account, via which the relevant moisture discharge results, for example, from a screed layer 21 of the room 20 . From the genann th Fig. 21, the connecting engagement of the hook 3 in the arresting element 2 can be seen. Recognizable there is also the aforementioned reversible interlocking engagement of the hook 3 in the loop web 22 arranged in the back of the carpet 19 , the loops of which are designated by 23 . Here, too, it can practically be a nonwoven web.

The hook webs 1 which can be produced in the extrusion process generally have a width of up to 30 cm; recently, even 50 cm wide webs can be produced in this way. In such a case, it is inexpensive and controllable that the hook path 1 has at least one intermittent center slot arrangement. The central slot there as a through-opening also bears the reference symbol 18 . This variant is shown in FIG. 17. The passage openings 18 run in a linear orientation, parallel to the longitudinal edges of the hook track 1 . Are disposed between the longitudinal slits forming regions unprocessed bridges 24, measured in the direction of extension, considerably shorter than 18 gene, the length of the through holes Betra. The width of the relevant slot-forming through holes 18 moves in the limits to the sought vapor permeable clearance of 0.5 to 4 % to lead.

FIG. 18 is a development showing the extent that there still be adding another slot arrangement. The center slot arrangement are namely on both sides addition slot arrangements added. They are designed in the form of a double rocker block 25 with a taper 26 directed towards the slot along the side of the center slot arrangement. The two wings take, measured in the longitudinal direction of the hook band 1 , a shorter length than the slots of the through openings 18 of the center slot arrangement. For example, this design reflects a company logo in abstraction.

The procedure is as follows: To lay a carpet 19 , the floor area 10 is previously covered with the bottom part of the Velcro fastener. These are the hook webs 1 , which are themselves made of a diffusion-closed material such as polypropylene or polyethylene. These either wear a self-adhesive layer 7, which is protected by a covering film 9 , or the bottom surface 10 is previously provided with an adhesive layer. The hook strips 1 are placed in relation to their neighborhood, that is to say edge edges, so that they are left in the way of laying by appropriate spacing of the hook strips 1 between these a passage opening 18 forming vapor diffusion open space, which is within the range of percentages given above. It is a through opening 18 extending up to the length of a suitably cut hook path. Broader webs provide the explained center slot arrangement and possibly secondary slot arrangements, as are explained for FIG. 18.

After this preparation, the attachment element 2 in the form of the loops 23, which forms the part on the floor covering side, is assigned. The carpet 19 is fi xed.

With the adhesive layer applied on the bottom, depending on the type of adhesive used, there is even a filling of the free space in the sense of compensation. The through opening 18 otherwise essentially free over exciting section of the carpet 19 is thereby fed or supported. The adhesive layer itself would also be open to vapor diffusion with respect to the moisture discharge problem described.

In the drawing, the hook paths 1 are ver flush with respect to the wall of the room 20 . Here, however, the vapor diffusion-open measures can also be taken into account by maintaining a corresponding wall spacing of the relevant longitudinal and / or transverse edge of the hook band 1 .

The following test report provides further information:
Steam diffusion permeability test on 2 cm pore concrete filled with TP-Flex with and without ecofix®. ecofix® glued at a distance of 4 mm.

1. AAC and TP-Flex without ecofix®

s _d

-Value = 0.2 meter air µ-value = 10.0

According to the manual for aerated concrete, the µ value for aerated concrete is 5-10 µ
Sample size 140 mm ∅

2. Aerated concrete, TP-Flex and ecofix® with a distance of 4 mm

s _d

-Value = 2.5 meters air µ-value = 113.0

The s _d value for cement screeds is between 2 + 10 meters of air

Vapor barrier = s _d value of 200 meters of air
Vapor barrier = s _d value 50 meters of air

Regarding the vapor diffusion resistance factor µ referred to Lueger, Lexikon der Bautechnik, 1966, Page 315

Regarding the water vapor diffusion equivalent air layer thickness s _d, please refer to DIN 52 615, Nov. 1987 page 139, items 3.6 and 3.7.

All the features disclosed are essential to the invention. In the disclosure of the application is also the Offenba content of the associated priority documents (Ab written notice of the pre-registration) conditions, also for the purpose, characteristics of these documents in To include claims of the present application.

Claims (35)

1. A method for producing a hook web ( 1 ) for a best of a hook web and a loop web existing Velcro, the hook web is made of a plastic, such as polypropylene or polyethylene, and is formed like a film, preferably in the extrusion process, with further top Arresting elements ( 2 ) in the form of hooks ( 3 ), mushroom heads ( 6 ) or the like are ausgebil det, whereas the underside is smoothly provided with an applied self-adhesive layer ( 7 ), characterized in that by an energy beam or thermo-mechanical in the Hook web ( 1 ) through holes (L) are formed, which also penetrate the self-adhesive layer ( 7 ) on the underside. 2. The method according to claim 1 or in particular according thereto, characterized in that the through holes (L) be formed by laser exposure. 3. The method according to claim 1 or in particular according thereto, characterized in that the through holes (L) be formed by water jet. 4. The method according to claim 1 or in particular according thereto, characterized in that the through holes (L) by the region of the melting temperature of the hook web ( 1 ) heated perforation pins are formed. 5. The method according to one or more of the preceding claims or in particular according thereto, characterized in that the through holes (L) from the side facing away from the hook ( 3 ) are introduced into the hook path ( 1 ). 6. The method according to one or more of the preceding claims or in particular according thereto, characterized in that the hook web ( 1 ) is given a width which is the diameter dimension of a conventional air inclusion between the hook web ( 1 ) and assigned bottom surface ( 10 ) rises more than five times over. 7. Procedure according to one or more of the preceding the claims or in particular according thereto, thereby records that a through hole (L) has a diameter from about 1 mm to 2 mm. 8. The method according to one or more of the preceding claims or in particular according thereto, characterized in that a hole diameter is adapted to the dimensions of a hook ( 3 ) or mushroom head ( 6 ) in such a way that the hole diameter is approximately one to two times the base projection of the hooks ( 3 ) or mushroom heads ( 6 ) corresponds. 9. The method according to one or more of the preceding claims or in particular according thereto, characterized in that on the laser exposure through the through hole (L) in alignment also a cover sheet ( 9 ) attached under the hook path ( 1 ) is detected. 10. The method according to one or more of the preceding claims or in particular according thereto, characterized in that a cover film ( 9 ) attached under the hook web ( 1 ) is also detected through the through hole (L). 11. The method according to one or more of the preceding claims or in particular according thereto, characterized in that the hook web ( 1 ) from at least two individual hook webs ( 1 ', 1 "interconnected by gluing along the associated longitudinal edge edges ( 14 , 15 ) ) are put together. 12. The method according to one or more of the preceding claims or in particular according thereto, characterized in that the connection in the region of the associated longitudinal edge edges ( 14 , 15 ) by a bottom of the hook web ( 1 ) arranged, the longitudinal edge edges ( 14 , 15 ) connecting, separate film strip ( 16 ) is formed. 13. The method according to one or more of the preceding claims or in particular according thereto, characterized in that the film strip ( 16 ) with the single hook webs ( 1 ', 1 ") is glued in each case. 14. The method according to one or more of the preceding claims or in particular according thereto, characterized in that the film strip ( 16 ) is arranged within a thickness of the self-adhesive layer ( 7 ). 15. The method according to one or more of the preceding claims or in particular according thereto, characterized in that the film strip ( 16 ) on its individual hook webs ( 1 ', 1 ") facing away from the self-adhesive layer ( 7 ) is covered. 16. hook path ( 1 ), produced according to the above method, for a Velcro fastener consisting of a hook path and a loop path, the hook path consisting of a plastic, such as polypropylene or polyethylene, and film-like, preferably produced in the extrusion process, wherein further on the top, arresting elements ( 2 ) in the form of hooks ( 3 ), mushroom heads ( 6 ) or the like are ausgebil det, whereas the underside is smooth with an applied self-adhesive layer ( 7 ), characterized in that the hook web ( 1 ) through holes (L ) which also penetrate the self-adhesive layer ( 7 ) applied on the underside. 17. hook web according to claim 12 or in particular as claimed, characterized in that the width of the hook web (1), the diameter dimension of a conventional air entrapment between hook web (1) and associated floor surface (10) by more exceeds than five times. 18. Hook track after one or more of the previous ones the claims or in particular according thereto, thereby records that a through hole (L) has a diameter from about 1 mm to 5 mm, preferably 2 mm. 19. Hook path according to one or more of the preceding claims or in particular according thereto, characterized in that a through hole (L) has a melting edge ( 12 ). 20. Hook path according to one or more of the preceding claims or in particular according thereto, characterized in that a hole diameter is adapted to the dimension of a hook ( 3 ) or mushroom head ( 6 ) in such a way that the hole diameter is approximately one to two times the base projection of the hooks ( 3 ) or mushroom heads ( 6 ) corresponds. 21. Hook path according to one or more of the preceding claims or in particular according thereto, characterized in that the through hole (L) in aligned alignment also detects a cover film ( 9 ) attached under the hook path ( 1 ). 22. Hook path according to one or more of the preceding claims or in particular according thereto, characterized in that the through hole (L) in aligned alignment also penetrates a cover film ( 9 ) attached under the hook path ( 1 ). 23. Hook track according to one or more of the preceding claims or in particular according thereto, characterized in that the hook track ( 1 ) consists of at least two individual hook tracks ( 1 ', 1 "connected to one another by gluing along the associated longitudinal edge edges ( 14 , 15 ). ) consists. 24. Hook path according to one or more of the preceding claims or in particular according thereto, characterized in that the connection in the region of the associated longitudinal edge edges ( 14 , 15 ) by a bottom side of the hook path ( 1 ) arranged, the longitudinal edge edges ( 14 , 15 ) connecting, separate film strip ( 16 ) is formed. 25. Hook path according to one or more of the preceding claims or in particular according thereto, characterized in that the film strip ( 16 ) with the individual hooks webs ( 1 ', 1 ") is glued in each case. 26. Hook track according to one or more of the preceding claims or in particular according thereto, characterized in that the film strip ( 16 ) is arranged within a thickness of the self-adhesive layer ( 7 ). 27. Hook track according to one or more of the preceding claims or in particular according thereto, characterized in that the film strip ( 16 ) on its side facing away from the individual hook tracks ( 1 ', 1 ") is covered by the self-adhesive layer ( 7 ). 28. Hook track according to one or more of the preceding claims or in particular according thereto, characterized in that the self-adhesive layer ( 7 ) in the region of the film strip ( 16 ) has a thickness (b) of the film strip ( 16 ) and the adhesive layer ( 17 ) between the foil tape ( 16 ) and the single hook webs ( 1 ', 1 ") has reduced thickness (c). 29. Hook path after one or more of the previous ones the claims or in particular according thereto, thereby records that the through hole (L) rectangular cross cut has. 30, hook path according to one or more of the preceding claims or in particular according thereto, characterized in that the through hole (L) is formed like a slot and the slot-like through holes (L) with their longer slot edges extend in the longitudinal direction of the hook path ( 1 ). 31. hook web ( 1 ) for a Velcro fastener consisting of a hook web ( 1 ) and a loop web, wherein the hook web ( 1 ) consists of a plastic, such as polypropylene or polyethylene, and is formed in a film-like manner, preferably in an extrusion process, wherein further top-side detachment elements ( 2 ) in the form of hooks ( 3 ), mushroom heads ( 6 ) or the like are formed, whereas the underside is smooth, preferably with an applied self-adhesive layer ( 7 ), characterized in that in the hook web ( 1 ) or in association with two juxtaposed hook tracks ( 1 ) the width of the hook track (s), viewed between two hook areas, a slot-like, in the longitudinal direction of the hook tracks ( 1 ) extending through opening ( 18 ) is formed, this with one Length of 20 mm and more up to the length of a hook track ( 1 ) based on the area of the hook areas of the hook nbahn (en) has a share of 0.5 to 4%. 32. Method for laying a carpet ( 19 ) by means of Velcro fastening, hook strips ( 1 ) being fastened to a floor surface ( 10 ), preferably on a screed layer ( 20 ) of a floor, preferably adhesive-fastened, made of a vapor diffusion-closed material such as, for example Polypropylene or polyethylene are laid, characterized in that, in relation to the area of the laid hook strips ( 1 ) in the course of laying by spacing the hook strips ( 1 ) between them, a through-opening ( 18 ) forming a vapor diffusion-free space of 0.5 to 4% is left. 33. On a floor surface ( 10 ) by means of Velcro fastening, consisting of a hook web ( 1 ) and a loop web, attached carpet ( 19 ) with hook webs ( 1 ) glued to the floor surface ( 10 ) made of plastic, such as polypropylene or polyethylene len, characterized in that, based on the area of the installed hook webs ( 1 ), these have a vapor diffusion-free space between them of 0.5 to 4%. 34. Hook path according to one or more of the preceding claims or in particular according thereto, characterized in that the hook path ( 1 ) has an intermittent center slot arrangement. 35. Hook path according to one or more of the preceding claims or in particular according thereto, characterized by secondary slot arrangements running in the double swing pull ( 25 ).