DE2020718A1 - Process for the production of a carpet with rows of vertical pile and ribbon-shaped intermediate layers that run over part of the pile height and are connected to the pile rows - Google Patents

Description

Posi / aef, 7 »

April 27th! 1970 ™ / year - 10,463

Ruedi Reinhard Melchnau / Bern (Switzerland)

Process for the production of a carpet with rows of vertically standing pile and band-shaped ₉ intermediate layers which run over part of the pile height and are connected to the pile rows

The present invention relates to a process for the continuous production of a carpet, wherein a tape-shaped Material is connected in the transverse direction with a layer of textile fiber material so that the textile fiber material with the one longitudinal edge of the strip-shaped material is flush and across the other longitudinal edge protrudes, after which sections of the received Structures are strung together and connected to one another so that a carpet is formed, the pile of which is made of the textile fiber material stands in rows perpendicular to the carpet plane and its cohesion through intermediate layers from the ribbon-shaped Material is obtained; which extends from the base via a Extend part of the pile height and are connected on both sides with adjacent rows of pile.

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In known machine-made carpet of a similar type are those in which aufreohtstehende as pile yarn portions bonded to a backing ₃ is the area at which each yarn portion is bonded to the pad, _s limited whereby the durability of the carpet is deteriorated. Such structures are obtained, for example, according to the method described in German patent specification 579 482 and in British patent specification 472 707, whereby according to the German patent, transverse strips are cut from a web-shaped fiber fleece and lined up with the cut surfaces facing outwards with the introduction of separating strips, after which the stack obtained is glued to one or both of the surfaces formed by the outer cut surfaces with a web of fabric serving as a backing layer and the separating strips are removed. In the case of double-sided gluing with a fabric web, the structure obtained must be cut in the center plane between the two fabric webs and parallel to them. According to the aforementioned British patent, a sheet-like sheet-like structure made of fiber material or a group of yarn lying parallel to one another is folded in a zigzag with the interposition of intermediate strips and the folding edges on both sides are also glued to a fabric web. After removing the intermediate layers, the cutting is carried out as described above. In both cases, structures are obtained in which the adhesive connection between the base fabric and pile material is limited to a relatively small cross-section.

In Swiss patent specification 401 892, to which reference is hereby made, a toppich is described * the pile of which stands in rows perpendicular to the level of the carpet, with the individual rows of pile being interposed by ribbon-shaped intermediate bearings * which extend from the base over part of the pile height and glued on both sides with adjacent rows of pile _{9 are} firmly. connected to each other ^. The adhesive connection of these intermediate layers with part of the pile height of the carpet gives the carpet

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* did an extraordinary cohesion and such a stability, "dass.sich any additional strengthening measures _s like back coating or the like, is unnecessary. In said Swiss patent specification also provides a method for manufacturing such a carpet is described, wherein a continuously advancing moving web of a textile fiber structure spaced parallel transverse strips of the intermediate layer material are glued on and the resulting 'structure is divided into individual elements by cuts along the longitudinal axis of these transverse strips, whereupon the areas of the intermediate layer strips that are still free are provided with adhesive and the individual elements are stacked on top of one another so that the intermediate layer strips lie on top of each other and The structure obtained in this way is then cut in the middle obone parallel to the two outer surfaces as described above, whereby two carpets are obtained, the R ückseite is formed by one of the outer surfaces. The process described in the patent mentioned enables the production of carpets to be more excellent. Quality, however, has the wachtail that the production capacity, ■ due to the gluing of. Transverse stripes of the spacer material ;, is restricted. The exact observance of the distances between the individual transverse strips requires a complicated device whose operating speed, by which the production capacity is determined, cannot be increased at will.

The object of the present invention _{4 is to provide} a method for producing carpets which do not have the disadvantages of carpets in which the upright pile is only glued to its cross-sectional surface with the back and which is glued to an opposite the method described in the aforementioned Swiss patent, with. a considerably increased production capacity. , '■' ■ '"..

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According to the invention, this is achieved in that the tape-shaped material is connected as a continuous tape with layers of textile fiber material.

In one embodiment of the method described the strip-shaped material is in the form of several continuous strips that are guided parallel to each other at intervals, connected to a layer of the textile fiber material running over all the bands, the web obtained in the transverse direction in equally long sections are divided, and these sections are stacked on top of one another and connected to one another in the area of the bands j that the bands form intermediate layers on top of each other ^ which are connected on both sides with a layer of the textile fiber material are, according to which the stacks obtained are each in the longitudinal axis of the rows of superimposed strips and parallel to them in the area of the Toxtilfasormaterials lying between the rows of bands will.

In another embodiment, the band-shaped material in the form of a plurality of continuous belts which are guided at intervals parallel to each other, is connected to a line extending over all bands La ₁ OO of Textilfasermatorials, and the web obtained by cutting in the longitudinal axis of the strip and by cutting dos textile fiber material divided into longitudinal strips in the area of the space between the individual bands.

In the method described, yarn can be used as the textile fiber material, which is passed in the form of a group, for example using a jacquard device for any pattern, in repeats in layers running at right angles to the longitudinal direction of the bands over these bands and connected to them. ·

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However, in the method described, the Toxtilfasermatorial can also preferably be carded in the form of a web Fiber fleece is fed continuously in the same direction of movement as the belts and connected to them. -

The longitudinal strips obtained as described above can be rolled up and connected to a round disc, that the ribbon spirals through the disc of its zen-. run outwards and on both sides with one layer of the Textile fiber material is connected.

The longitudinal strips obtained as described above however, they can also move from their horizontal position by 90 to the Vertical position must be turned off so that the tape is at the base end of the vertically standing textile material, after which the individual Stripes parallel to each other in this position wound on the circumference of a rotatable drum and in the field of the tapes are connected to one another in such a way that each tape is connected on both sides to a layer of the textile fiber material.

In a further embodiment of the method described however, the web consisting of the longitudinal strips obtained as described above can be the same over its entire width long sections are divided, and the longitudinal strip sections obtained can be continuously stacked on top of one another and connected to one another in such a way that the tapes are on top of one another and each band with one layer of the textile fiber material on both sides connected is.

The position of the textile fiber material is preferably from a web-shaped group of parallel juxtaposed Yarns made from the same or different material and can be colored identically or differently. Through pre-form

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It is also possible to use a jacquard device, "the respective Patterning of reports of a yarn group as desired.

As a tape-like material for the intermediate layers of different materials can be used, for example, tissue _s knitted fabrics, nonwovens _s or cut from sheets or extrudiorte bands of rubber ₉ of plastic or foam, or even band-shaped strip of HOIA or wood fiber material,

The two-sided connection of the upright in the finished carpet standing band-shaped intermediate layers -between the individual rows of Plor can for example by gluing, thermal welding or heat sealing. For example, it is also possible to extrude the continuous strips serving as an intermediate layer directly from a thermoplastic material, wherein then the connection with the layers of the textile fiber material by simply pressing above the softening temperature of the Plastic can be done »

According to the method described, it is possible to produce carpets of high quality with a production capacity previously unknown. The production capacity varies depending on the pile height _# yarn number and the thickness of the intermediate layers used. With an efficiency of approx. 70 % the achievable is

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Production on average 275 m / h, whereby for this production the extremely low personnel requirement of five people compared to normal rod weaving with a personnel requirement of about 110 people for the same production must be taken into account.

Another advantage of the method described is the small amount of space required to carry it out.

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According to the procedure described, it is also possible, using yarn as textile fiber material and a jacquard device for its feeding of simply patterned, 1-course carpets to those with the most complicated 8-course carpets To produce oriental patterns.

According to an embodiment already described, it is easily possible to produce round carpets of any diameter, which is becoming increasingly important in trade.

In the case of those produced by the method described Carpets are cut and pile strength in the course of the process, so that there is no need for any additional post-treatment.

There are further advantages of the method described. that when using yarn as textile fiber material any Yarns with regard to their quality, yarn count, color and fiber material can be used when using nonwovens know both ordered and random fiber fleeces from any Filaments or staple fibers are used and it is even possible to use woven, knitted or knitted fabrics as the textile fiber material To use nonwovens.

The carpets produced by the process described show excellent insulating effect; both in terms of temperature and humidity and because of the good footfall sound insulation the underlay can be omitted for new roofs. In the. Furthermore, the carpets are easy to lay and panels made from them are dimensionally stable, i.e. their corners and edges do not stand up. When laying out a floor area with such plates whose circumferential lines are no longer visible after laying. at the use of yarn as textile fiber material stands for the pile

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obtained carpets perpendicular to the carpet plane, creating elasticity and lifespan of the carpet can be increased and its cleaning is made easier.

Preferably, the carpets or panels produced by the process described are therefrom when laying with the Underlay glued, with the pile additionally at its base is still glued on its cross-sectional area.

In the drawings, components correspond to one another provided with the same reference numbers. Show it:

Pig, FIG. 1 schematically shows a perspective view of a carpet produced according to the described method;

Fig. 2 schematically shows a perspective view of a individual tape serving as an intermediate layer, which is connected on one side with a row of pile made of yarn;

3 schematically shows an embodiment of the one described Procedure;

FIG. H schematically shows another embodiment of the method described; FIG.

Figures 5 and 6 show different embodiments for formation of carpets made of endless, connected on one side with a row of florets Ribbons or portions thereof as shown in Fig. 2;

7 shows a block obtained according to FIG. 3 and the for Manufacture of individual carpets from these interfaces.

In the examples below are by reference Explained on the drawings various embodiments of the method described.

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example

Referring to Pig. 3, a group of yarns 1 is pulled from a warp beam or from bobbins and laid down in the form of a simple yarn layer at right angles over the entire width of a conveyor belt coated on its surface with a contact adhesive, pressed down and cut off in the desired bandwidth. This process is repeated continuously with the conveyor belt advancing in repeats, so that a continuous path of transverse and parallel yarn sections is obtained on the conveyor belt. • Straps 3 made of any desired interlayer material are continuously applied to this path with spacings from one another in the direction of movement of the conveyor belt and are firmly connected to the yarn layer by gluing, thermal welding or heat sealing. This structure is pulled off the conveyor belt by the pair of take-off rollers 4 and passed onto the cutting table 5, where it is cut by the transverse knife 6 into sections of the same length. This Abschriittü be detected by a transport device 7 and passed over a kiss-roll segmented 8 ₉ by means of which the Garnlago only at those locations with adhesive we provide <I opposed _s die'den Zwischcnlagebändern. 3 The sections provided with adhesive are then stacked by the transport device 7 in a stacking box 9 in such a way that the strips provided with adhesive of a section each come to rest on the intermediate layer tapes 3 of the section below. The stack formed is constantly pressed together, for example by a hydraulic device 10. If necessary, the stacking box can be heated in a suitable manner in order to harden the adhesive. In this way, an endless stack is obtained, as shown in FIG. 7, which, as indicated in FIG. 7, is either continuously divided into individual carpets by cutting at the interfaces 11,

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or after reaching a certain volume from the stacking box removed and cut elsewhere in the same way.

This embodiment is also feasible if instead the flock of yarns 1 another web-shaped textile material, for example a fiber fleece, woven fabric, knitted fabric or nonwoven is used will.

Example 2. ■

With reference to Fig. 4, intermediate storage tapes 3 made of a thermoplastic material are removed from the supply roll 12 and guided parallel to one another in the form of a path over the table 14 at a distance from one another and heated there by means of infrared radiators 15 to a temperature above their softening point. The surface 13 of the table is coated with "Teflon" to prevent sticking of the softened tapes. In front of the supply roll 16, a web-shaped fiber fleece 17 is drawn off via the driven roller 18 with adjustable contact pressure and applied over the entire width of the softened belts and connected to them by the contact pressure. The structure obtained is cooled and solidified in the cooling zone 19. This web is now separated into continuous longitudinal strips by a row of circular knives in the longitudinal axis of the intermediate belts and in the area of the spaces between these belts. By means of the conveyor belts 21 and 21 ', these longitudinal strips are held together in the form of a tape and to the transverse knife 6 further transport _P which divides the individual longitudinal strips into sections of equal length A peeling roll 8, which provides the rear side of the intermediate layer tapes with adhesive. In contrast to the embodiment described in Example 1, however, the section, the longitudinal strips are now individually stacked in different stacking boxes; _; .that the adhesive backing

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side of the intermediate layer of the one strip on the no Pile row of the lower strip with intermediate layer comes to lie. The adhesive is compressed and cured in the individual stacking boxes as described in Example 1.

In this embodiment, too, it is of course possible instead of the web-shaped fiber fleece 17, a woven, knitted or knitted fabric Use nonwoven ^ or a group of yarns as in example 1 / instead of thermal welding to the Interlayer tapes with the textile fiber material by means of infrared radiators 15 gluing can easily be used., only the infrared radiator 15 by a device would have to be replaced to apply an adhesive. The cooling zone In this case 19 would advantageously be replaced by a heating zone. .

The advantage of this embodiment over that of example 1 consists in cutting the block the last treatment stage is omitted and several are continuously endless carpet tracks are obtained, the number of which depends on the number the longitudinal strips produced by the circular knife and the width of which is determined by the length of the sections of these longitudinal strips.

In Fig. 5, an embodiment is shown where a like Described in Example 2 and obtained by the circular knife 20 divided into endless longitudinal strips of structure with one side Textile material connected with intermediate layers by means of the .. The pair of take-off rollers 4 are guided over a segmented peeling roller 8 is, which the backs of the intermediate layer tapes 3 with adhesive provides. The longitudinal strips are then passed individually over deflection rollers 22, 22 'and wound up in the form of round disks, so that the glue-provided back sej to the 7W-J s ^ - tape is connected in the next handling with the still free side of the following row of pile.

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In this way, several round carpets of any diameter can be produced at the same time, the number of which by the number of longitudinal strips produced by means of the circular knife is conditional.

6 shows a further embodiment in which the longitudinal strips obtained as described above with reference to FIG. 5, the intermediate layers of which have been provided with adhesive on their free rear side by the segmented flat roller 8, by the deflection rollers 22, 22 ^! individually deflected and at the same time rotated from the horizontal position by 90 ° into the pretical position in such a way that their intermediate straps extend upwards from the base. The individual bands, the number of which is again determined by the number of strips produced by the circular knives 20, are now wound on the surface of the driven drum 25, standing parallel to one another, under pressure from the roller 2 ^ 4. The drum surface can be heated to harden the adhesive. After the desired winding width has been reached, the winding process is interrupted and the end of the strips is cut off. By axially cutting open the wound layer, a carpet is obtained, the length and width of which are determined by the diameter of the drum and the winding width.

The total thickness of the carpet shown in FIG. 1 and 2 with D, by selecting the width dor liner tapes 3 used and the distances between "the individual bands can be varied. It is possible in the same operation carpets h different pile heights" to obtain, by both when cutting the block obtained in example 1 as well as when cutting with a circular measuring mandrel as described in example 2; the cut of the textile fiber material in the area of the space between the individual intermediate layers is not carried out in the center line.

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Claims (13)

- 13. PATENTED FRUIT 1. A method for the continuous production of a carpet ₃ wherein a strip-shaped material is connected in the transverse direction with a layer of textile fiber material so that the textile fiber material is flush with one longitudinal edge of the strip-shaped material and protrudes beyond the other longitudinal edge, after which sections of the structure obtained are lined up and are connected to one another so that a carpet is formed, the pile of which is made of the textile fiber material in rows at right angles to the plane of the carpet and whose cohesion is made of the. band-shaped material is obtained ₃ which, starting from the base, extend over part of the pile height and are connected on both sides with adjacent pile rows, characterized in that the band-shaped material is connected as a continuous band with layers of the textile fiber material .. 2. The method according to claim la _, characterized in that the band-shaped material in the form of several continuous bands, which are guided parallel to each other with spacings, connected to a layer of textile fiber "material running over all bands, the web obtained in the transverse direction in equal sections is divided and these sections are stacked on top of each other and connected to each other in the area of the bands that the bands form superimposed intermediate layers that are connected on both sides with a layer of the textile fiber material, after which the stack obtained in the longitudinal axis dc-r '■■ rows of superimposed Ribbons and parallel to them in the area of the textile fiber material lying between the rows of ribbons "w" is cut. . ■. BATH ORIGINAL 009848/1612 ■ "- 14 - ' 3. The method according to claim I _9, characterized in that the strip-shaped material in the form of several continuous strips, which are guided parallel to each other with spacings, is connected to a layer of textile fiber material running over all the strips, and that the web obtained by cutting in the longitudinal axis of the bands and is divided into longitudinal strips by cutting the textile fiber material in the area of the space between the individual bands. 4. The method according to claim 2 or 3j characterized in ', that the textile fiber material is yarn and in the form of a group of repeats at right angles to the longitudinal direction of the ribbons running layers is connected with the tapes. 5. The method according to claim 2 or 3 _S, characterized in that the textile fiber material is a web-shaped fiber fleece and is continuously fed in the same direction of movement as the belts and connected to them. 6. The method according to claim 3 *, characterized in that that each of the longitudinal strips wound up into a round disc and connected that the tape spirals through the disc runs from the center to the outside and is connected on both sides with a layer of the textile fiber material. 7. The method according to claim 3 »characterized in that each of the longitudinal strips is twisted from its horizontal position by 90 in the vertical position that the tape is at the base end of the vertically standing textile material, after which the individual strips in this position parallel to each other be wrapped around the periphery of a rotatable drum and connected to one another in the area of the bands that each band with one location dee textile fiber material is connected on both sides. 009848/1612 bad gr «al ; ■■ .-. ■■■. - is - 8. J method according to claim 3, characterized in that that the web cut into individual longitudinal strips is divided over its entire width into sections of equal length, and that the longitudinal strip sections obtained are continuously stacked on top of one another in this way and are connected to each other so that the bands are on top of each other and each band has a layer on both sides of the textile fiber material is connected » 9. The method according to claim 4, characterized in that the yarn layer is patterned by means of a jacquard device . . "■. ■■ .. - 10. The method according to claim I _3, characterized in that the strip-like material is a woven, knitted or nonwoven fabric or made of rubber, plastic., Foam, wood or wood fiber material. Λ 11. The method according to claim 1, characterized in that the compound ₉ is carried out by adhesive bonding, heat-sealing or heat sealing. · 09848/1612 Blank page