EP0860543A2 - Carpet - Google Patents

Abstract

A carpet for loop and hook tape ("Velcro" (RTM) type) laying has a primary and secondary backing. The secondary backing has a non-woven layer (7) and exposed loops (12) for attachment to the hook tape. In contrast to the non-woven, the loops (12) are formed by monofilaments but can be multifilaments if required.

Description

The invention relates to a carpet for Velcro laying with a first back and a second back, whereby the second back has a loop-like design Has arrest with a hook hand.

Such carpets are already in various configurations known. For example, it will be on GB-PS 15 46 901, the German utility model 20 29 524 and European patent 321 978.

Another market-known carpet exists the second back made of a stitching technique Fleece layer. As a result, is adjacent between two loops Stitches a variety of threads each Fleece layer summarized so that the free stretched Length of the fleece threads for hooking with a hook assigned hook band is suitable. It becomes this for example to the German utility model application 29 606 448. The disclosure content of this The utility model application is hereby fully in the disclosure of the present application included, also for the purpose, features of the aforementioned Registration included.

If the aforementioned backstop in relation to a carpet to be laid with Velcro Already one provides satisfactory design, will still be in certain applications, in which even more Comfort is required, an improvement in softness wanted.

Concerning this state of the art the invention deals with the technical problem, specify a carpet for Velcro laying, which with an advantageous property of arrest with an assigned Hook tape at the same time a high step comfort having.

This technical problem is first and foremost for a carpet with the features of the claim 1 solved, it being based on the fact that the Back a fleece pad with free-standing loops which loops through compared to the fleece monofilament threads are formed for themselves however, if necessary, consist of a family of threads. This leads to an extremely secure surface closure. The free-standing loops "catch" the hooks the hook band better. The free state allows even a correction, in the sense of one Repositionability. A firm bond of the so-called Velcro then results in the intimately cuddling connection by targeted pressing the carpet to the hook tape. There are deep anchorages involving the polydirectional Material of the non-woven layer. The monofilament threads are with the formation of a group of threads even more mobile and more catchy, even if only part of it Thread coulter threads catch the hook. The fleece layer provides Softness. It is then advantageous that the Thread the fleece at the same time. So come such Thread an additional function too: About the topstitching the fleece has excellent layer stability. Even a multiple corrective subtraction of the second back does not lead to the dissolution of the Fleece. It also proves to be favorable that the the loops forming thread from one in the course of the quilting formed looping of the threads grows out. This can best be done using the knitting technique dominate, with the wraps around Loop shape remains secured. There is no one Lengths of the loops. A particularly advantageous way the formation of the carpet-side surface fastener consists in that the thread forming the loops formed as a separate loop thread is. This can advantageously be done in such a way that the loop thread with formation of a loop alternates between two rows of steps. The free state of the Loops are presented in the form of bridge arches. There is also an advantageous feature of the invention in that the loop thread with formation of a Loop between adjacent rows of quilts changes. Neighboring rows of steps are cross-locked. An advantageous solution then consists in that the loop thread between two diagonal quilted stems changes. The direction can change, so that you achieve a herringbone-like loop field.

The technical problem is then essentially solved in that the second back is formed in two layers is, with a non-woven layer with a free-standing monofilament loops is connected by threads passing through both layers. According to the invention, a thread connection is created between a fleece layer and an independent one Loop position, which in the sense of a Velcro connection performs the one-sided adhesive function. Such a layer is also called a disposable Velcro. Since both this disposable Velcro and the Non-woven layer, which also in different depending on the needs Thickness can be formed, each for itself a certain contribution to a desired elasticity achieves, overall and in combination is a highly desirable Elasticity possible. At the same time it is Arrest property through the separate and independent, Loop layer forming monofilament loops advantageously increased. In a further embodiment can can also be provided or is preferably used, that both layers in a sewing technique with each other are connected. The so-called Maliwatt technology is available for this on. It is also preferred that the loop ply consists of warp knitted fabrics.

Regarding one designed with such a second back Carpet is also on the documents European patent application 595 063.

Also the disclosure content of this European patent application is fully present in the disclosure Registration included, also for the purpose Features of this European patent application in Features the claims of the present application. In particular, the connection described there between the first back and the second back, mediated a lamination by means of a back coating unmelted fibers, especially polyamide fibers containing laminating adhesive, of importance.

Fig. 1

eine perspektivische, teilweise zerlegte Ansicht eines entsprechenden Teppichs, in einer im Hinblick auf die hier interessierenden Elemente abstrahierten Darstellung, gemäß einem ersten Ausführungsbeispiel;

Fig. 2

einen schematischen, teilweise in übertriebener Deutlichkeit und mit übertriebenem Maß dargestellten Querschnitt durch einen Zweitrücken des Teppichs gemäß Fig. 1;

Fig. 3

eine vergrößerte Darstellung aus der Darstellung gemäß Fig. 2;

Fig. 4

eine schematische, vergrößerte Unteransicht des Gegenstandes gemäß Fig. 2 bzw. Fig. 3;

Fig. 5

eine Draufsicht auf die Kettwirkware ohne darunter befindlicher Vlieslage;

Fig. 6

eine Unteransicht der Kettwirkware gemäß Fig. 5, unter Fortlassung der oberseitigen Schlaufen;

Fig. 7

eine der Fig. 3 entsprechende Darstellung, den Zweitrücken eines Teppichs gemäß zweitem Ausführungsbeispiel mit zuordnungsgerecht nach unten weisenden Schlaufen, in Verhakungseingriff mit einem Hakenband;

Fig. 8

einen Auszug des Hakenbandes in Form eines perspektivischen Blockbildes,

Fig. 9

eine Unteransicht gegen den Zweitrücken;

Fig. 10

eine Draufsicht hierzu und

Fig. 11

den Zweitrücken in perspektivischer Darstellung, zwei parallele Steppreihen zeigend, bei dort weggelassenem Vlies, und zwar die Schlaufenausbildung wiedergebend.

The invention is further explained below with reference to the accompanying drawing, which, however, only represents exemplary embodiments. Here shows:

Fig. 1

a perspective, partially disassembled view of a corresponding carpet, in an abstracted with regard to the elements of interest here, according to a first embodiment;

Fig. 2

a schematic, partially in an exaggerated clarity and with an exaggerated size cross section through a second back of the carpet shown in FIG. 1;

Fig. 3

an enlarged view from the illustration of FIG. 2;

Fig. 4

3 shows a schematic, enlarged bottom view of the object according to FIG. 2 or FIG. 3;

Fig. 5

a plan view of the warp knit fabric without underlying fleece layer;

Fig. 6

a bottom view of the warp knitted fabric according to Figure 5, omitting the top loops.

Fig. 7

3 a representation corresponding to FIG. 3, the second back of a carpet according to the second exemplary embodiment with loops pointing downward in accordance with the assignment, in hooking engagement with a hook band;

Fig. 8

an extract of the hook tape in the form of a perspective block diagram,

Fig. 9

a bottom view against the second back;

Fig. 10

a top view of this and

Fig. 11

the second back in a perspective view, showing two parallel rows of steps, with the fleece omitted there, reflecting the loop formation.

Shown and described is a carpet 1 with a First back 2 and a second back 3. The first back 2 is by means of a laminating adhesive layer 4 with the second back 3 connected. Are on the top of the first back 2 indicated in this arrested pile threads 5. At a usual carpet, however, these are known to be essential denser arrangement provided.

The second back 3 according to FIG. 1 is in further detail 3 to 4.

It (3) basically consists of an upper one in FIG. 1 exposed on the underside in FIG. Loop layer 6 and a fleece layer underneath 7. The loop layer 6 and the non-woven layer 7 are through both threads 8 were interpenetrating connected. In detail, the two were in one known sewing technology, also as Maliwatt technology or possibly known Mali fleece technology, connected with each other.

3 is an enlarged detail view reproduced from the representation according to FIG. 2.

It can be seen that the threads 8 on the underside of the Fleece layer 7, ie with reference to the representation according to 1 facing the laminating adhesive layer 4, stitches 9 form. The stitches are here for clarity with (based on the figure) lower distance to the Fleece layer 7 represents. In fact, they bind the fleece layer 7 to the loop layer 6, so that actually there is a close association. Underside the second back 3 is therefore approximately as indicated in FIG. 4 In addition to those connected one behind the other Stitches 9 can also be seen cross threads 10.

The loop ply 6 is further in FIGS represented individual. There is no connection yet made with the nonwoven layer 7 so that the threads 8 are not shown.

It can be seen that individual loops 11 are formed are lined up next to each other in more detail and are arranged overlapping. Beyond that the loops 11 are also aligned substantially horizontally and have an average height H, which is about Distance A between two rows of loops corresponds. The term "height" should not be used here Project the loops 11, but refers arranged on the size of the essentially lying Loops 11.

Furthermore, are designed as warp knitted fabrics Loop position in the transverse direction to the loop base mesh to distinguish individual fiber strands 12, which are each bordered in the loop base stitches 13 are.

6, in which the loops 11 located on the other side for clarity for the sake of not being shown, the loop base stitches are 13 clearly recognizable. The fiber bundle have between two rows of loop base stitches 13 a tuft 14, so that overall, since the Bulge 14 also perpendicular to the plane of the drawing Direction is pronounced, also a padding results.

The embodiment shown in FIGS. 7 to 11 shows a different kind of loop formation Loops 12 are not special here Loop position, in the first embodiment with 6 designated, formed, but by the binding of the fleece Knitting technology created. In addition, the step-forming Thread 8 can be used.

The reference numbers are used analogously, this to Part without repeated text.

The second back 3 also has a step comfort favoring nonwoven layer 7. From the bottom projecting loops 12.

The loops 12 are through compared to the fleece monofilament threads 8 formed, but for themselves possibly consist of a family of threads. She is weakly turned and can just barely be opened.

The threads 8 quilting the fleece layer 7 are after Ordered rows of steps. Adjacent, parallel running rows of steps are designated R1, R2, etc. Said course is particularly clear from the 10 and 11 emerge.

The thread 8 forming the loops 12 grows one in In the course of the stitching, the threads are looped 8. The effective association gives the corresponding tensile strength Anchoring over such wraps.

Preferred and shown in the embodiment a solution according to which the loop 12 forms Thread is a separately running loop thread 8 '. He takes part in the wraps and also crosses, like the corresponding section of threads 8, the non-woven layer 7 in the area of the quilting stems 15. So cross in total four thread sections in a common step hole I or II the fleece layer 7.

The individual step holes I, II sit on the corners an imaginary geometric, for example square Field. This also determines the lateral distance the rows of steps R1, R2, etc. to each other.

As can be seen in FIGS. 9 and 11, the Loop thread 8 'with the formation of a loop 12 between the two rows of steps R1, R2. Like that Removable representations, this change happens between adjacent rows of steps R1, R2.

The changeover can be done in the shortest possible way; however, an embodiment according to which the loop thread 8 'between two diagonally arranged Quilted stems 15 changes, or the loop 12 extends like a bridge arch in the diagonal of the square field indicated above. So two are rooted Sections of the loop thread 8 'each in one common step hole I of the nonwoven layer 7. You start the loop side 16 of the fleece layer 8 of the second back 3 and run in divergent diagonals, see above that the herringbone-like seen in Fig. 9 Loop structure is created.

The one that takes place in the row at a distance from the step hole I. Wrapping around the cross-section of those there Quilting stem 15 brings sections of the threads 8 a high tensile anchor for the loops 12. The loop is in the area of the stitch hole II designated 17.

The wrapping of the thread, which is approximately congruent 8 bears the reference number 18.

The area of the step hole II is then the stem area not for one for the sake of clarity loop thread 8 'shown, which as a bartack between the one in front of step R1, which is adjacent there Stepping row creates the loop formation and the Connection of these rows of steps ensures. This is also done here the underside exit of the loops 12 so alternately to one side and the other offset by a stitch length.

The associated hook strap is in its entirety at 19 designated. It carries arresting elements 20 on the upper side. Regarding the arresting elements 20 there are for example around hook 21. They each go into a hook head 22 over. The only enlarged as a relatively small The hook 21 shown in detail are in pairs placed side by side. Between the individual pairs there is a gap about the width of a pair of hooks (measured from the flat sides). The hook opening 23 pairs of standing hooks 21 are directed in opposite directions. The hooks 21 are each in a row. she form multiple rows of hooks.

Instead of hooks 21 as attachment elements, mushroom-shaped ones can also be used or trumpet-shaped pins the Velcro parts put.

The underside of the hook band 19 is smooth. she carries a self-adhesive layer 24. It can be pressure sensitive adhesive act. The self-adhesive layer 24 allows one non-slip setting of a film-like base 25 having hook tape 19. is in pretreatment state the self-adhesive layer 24 by a protective cover in Form of a film 26 covered. The latter forms the necessary Interface. On the other hand, it can also act as a separate silicone layer.

The hooking shown in Fig. 7 shows that a those come about with the participation of the loops 12, however, as you can imagine under Involvement of the polydirectional threads of the nonwoven layer 7 and also the threads forming loop-like outer zones 8th.

All of the features disclosed are essential. In the revelation the disclosure also includes the content of the disclosure the associated / attached priority documents (Copy of the pre-registration) included in full, also for the purpose of characteristics of this document in To include claims of the present application.

Claims (10)

Carpet (1) for Velcro tape laying, with a first back (2) and a second back (3), the second back (3) a loop-like design for arrest with a hook band, characterized in that the second back (3) a fleece layer (7) with free-standing loops (12), which Loops (12) through monofilaments compared to the fleece Threads are formed, however, if necessary consist of a group of threads. Carpet according to claim 1 or in particular according thereto, characterized in that the threads (8) at the same time Quilting fleece. Carpet according to one or more of the preceding Claims or in particular according thereto, characterized in that that the loops (12) forming thread (8) a wrap formed in the course of the desertification the threads (8) grow out. Carpet according to one or more of the preceding Claims or in particular according thereto, characterized in that that the loops (12) forming thread as separately running loop thread (8 ') is. Carpet according to one or more of the previous ones Claims or in particular according thereto, characterized in that that the loop thread (8 ') with formation of a Loop (12) changes between two rows of steps (R1, R2). Carpet according to one or more of the preceding Claims or in particular according thereto, characterized in that that the loop thread (8 ') with formation of a Loop (12) between adjacent rows of steps changes. Carpet according to one or more of the preceding Claims or in particular according thereto, characterized in that that the loop thread (8 ') between two diagonal Quilted handles (15) changes. Carpet according to one or more of the preceding Claims or in particular according thereto, characterized in that that the second back (3) is formed in two layers, a nonwoven layer (7) with a free-standing monofilament Loops (12) trained loop layer (6) threads (8) passing through both layers (6, 7) connected is. Carpet according to one or more of the preceding Claims or in particular according thereto, characterized in that that the two were (6, 7) in a sewing technique are interconnected. Carpet according to one or more of the preceding Claims or in particular according thereto, characterized in that that the loop layer (6) from a warp knit consists.

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