Woven or knitted textile fabric.

The invention relates to a textile sheet of fabric or knitted fabric, comprising relative to the trajectory substantially along processed continuous threads and is separable into individual pieces for further processing and / or for final consumption substantially transverse to the path course and a process for the preparation of pre-assembled or ready-made individual pieces of woven or knitted fabric, in particular articles of clothing or parts of clothing as well as prefabricated or pre-assembled discrete pieces of woven or knitted fabric, which are shown from inventive sheet material or by the novel process.

The field of the invention relates to all areas of textile manufacturing, where the pre-made continuous sheeting or ready-made individual pieces, especially articles of clothing are produced. Mainly appear while an application in the field of knitting or Raschel, in which the packaging process in the preparation is already well advanced, particularly advantageous. An application in the field of woven fabrics, however, is to realize as well.

Following a procedure known hitherto finished knitted sheet is continuously wound onto rolls or filled into cartons and later elsewhere, if necessary. separated by an intermediate treatment of the web material into individual pieces. Originally this separation process was entirely manual performed by cutting the cross-web direction, a major share of wage costs was incurred. There are now automatic devices are known that move the aufgewikkelte or folded material, and controlled automatically disconnect the provided individual items. This process is too expensive since the imputed wage cutting is of the same order of magnitude as the effective wage, and both are taken together in the order of material costs.

The invention addresses the problem of proposing an innovative product and an adapted this procedure, by means of which can be simpler and cheaper separation of textile sheeting in prefabricated or pre-assembled individual pieces without drawbacks in the handling of the products during processing or during transport are to be accepted.

The solution consists of a sheet material which is thermoplastically moldable and separated by a first type of fiber, which forms the largest portion of the running in the web direction threads or meshes and at a first elevated temperature, and by a second type of fiber that a small proportion of in the web direction extending threads or meshes forms and at the first elevated temperature is substantially structurally invariable, is characterized, and in a method which is characterized in that in a first, the weaving or knitting process downstream method step, the fibers of the first, thermoplastically formable fiber type are separated by heating in a direction transverse to the path course Patie and that. in a second, a resale processing and / or the end-use upstream process step subjected thermally more resistant fibers of the second type of fiber in the above thermoplastic separation, transverse to the path course Patie be separated.

This makes it possible to cut in a process for manufacturing the sheet material immediately downstream and with this together controlled Vortrennungsverfahrenschritt the thermo formable fiber content of the web material, while the thermally more resistant fiber portions remain intact and bring about the cohesion of the web material. The proportion and the dimensioning of the connecting fiber parts is intended to be capable of receiving all occurring during further transport or further processing longitudinal forces in the web material nondestructively. This ensures that all subsequent process steps and conveying steps can be performed in an unchanged manner during the final finished separation process which can for example be done by the consumer immediately before use, is much easier and about by applying a momentarily increased traction, in particular take place by manually tearing may want. Here, however, such modifications are included in which the separation is accomplished for example by claiming a cutting edge or another cutting tool, since in any case, the separation point is mapped out and only a few, easily breakable support threads comprising, while the melting yarns previously thermoplastically at the interface have been separated. Of course it is also possible to share the supporting threads depending on the material by thermoplastic forming or thermal runaway with a manually handled tool or a fixed device, for which ebenffalls a relief is created by the severing of the fusible threads in the first step, so that the done racing operation can be done more quickly.

Basically, it is contemplated that substantially longitudinally processed yarns partially as melt filaments of a thermoplastic formable material such as display, for example, polyester and to a certain proportion or a certain number of supporting threads made of a thermally more resistant material such as a natural fiber. However, the invention also extends to the ability to spin all processed yarns or part thereof from a portion thermoplastically formable fibers and a portion thermally more resistant fibers or pull, so that only a portion of the winding up of the first step of thermal pre-separation so threads, in particular as a Kernbeich remains as a supporting component which is then facilitated severed. for example glass or carbon fibers come into question for the thermally resistant fiber type and the thread core therewith. As suitable material for the refractory portion of the fibers, the product has been found Nomex (trademark Dupont), whose melting point is about 420 degrees Celsius. If involved in a red-hot heat wire of about 1,300 degrees Celsius for a period of 10 sec., The polyamide fibers may prove resistant. For further handling of the web material, it seems reasonable to provide at least two supporting threads, which should preferably be arranged in the edge region of the web. Variations in the number and arrangement of the support threads are directed essentially to the material thickness and are always seen from the viewpoints already mentioned that a good handling of the sheeting and a slight Durchtrennbarkeit should be given to individual pieces in the same way.

The application of the invention is not limited to single-layer sheet material, but also extends to two-ply knitted fabric forfeited in accordance with the intended use of the separated individual pieces eg as cut clothing in the form of pants, tights, shirts or the like along the edges and / or transversely to each other may be or may have longitudinal separations. Preferably, while the designated detachment points are optically and / or mechanically detectable and preferably arranged in a double-layered active manner ply games.

A preferred application relates to sheet material from the elastic panties according to the German Pat. No. P 30 04 469 are displayed. In these the leg openings are in an edge portion and the body opening in the other edge portion of the sheet material and side seams are represented by transverse to the web direction each other knitted parts, which are also provided as optically and mechanically detectable areas for final separation or for pre-separation. By periodically interlocking engagement of an edge on short sections of the gusset of the pant is formed thereby. The said application shows an example in which a ready product produced by the process of finishing the separation into individual pieces, which can be supplied to its use, for example in the medical field. With the pre-separation according to the invention the web material can be packaged in a suitable manner, for example, be wound onto spools or packaged in pleated form in boxes without handling or transport problems arise, and be individually torn off by the end user as needed with a short jolt from the web material. By winding on coils, a substantially increased packing density can be achieved, thereby reducing the Tranportraum and can thus reduce transportation costs.

According to another application example pre tights are made of two layers of sheet material, however, in which the leg extends history in rail longitudinal direction. The legs are formed by this longitudinal periodic separation of the two-ply material, which at the same time the corresponding longitudinal edges are forfeited together. Since such pre tights in the base area and possibly also in the waistband area have yet to be processed, the further transport and further processing is by anwendhngsgemäße method particularly facilitated because sheeting of the invention can be automatically packaged and transported and fed continuously in further processing stations. The separation is, however, prepared also here according to the invention and can also be made here automatically or manually, in a last method step facilitated.

The inventive method takes place in a manner that directly serving after weaving or knitting process in any of the pre-separation step by means of a suitable device transversely separated all thermoplastic fiber portions of a formable at relatively low temperature type in a periodic sequence to the web direction by heating and thus what is caused by melting be and the final division in prefabricated or pre-assembled individual pieces in a second process step, which is preferably carried out by mechanical tensile load by separating the remaining, unaffected remaining fiber portions of a second type. In special circumstances, be based on thermoplastic forming the finished separation eg at a higher temperature. This may for example be useful to separate each by a larger number of individual pieces a certain length of web material to make them transportable or packaging- or distribution capable. In a meaningful and more preferably, the device for pre-separation device with the active together or function of this is controlled. This naturally also applies for possible device for prefabricated separation.

Suitable devices with which the Vortrennvorgang can be carried out, are known and may include, for example a simple heating wire, a heated by a built-in coil cutting tool or the like, wherein the cutting tool and the sheet material must be relatively approachable. The type of further processing and transport steps depends entirely on the type of product to be manufactured. The advantages of the invention are always exhausted in the highest degree when the final separation process can be carried out by purely manual tensile stress and leads to the ready-made product.

Embodiments and details are given in the accompanying drawings. <ul><li>FIG. 1 shows a textile web as a starting material for elastic pants</li><li>FIG. 2 shows a fabric web as a starting material for tights</li><li>Fig. 3 shows a simplified and enlarged knitted fabric section with supporting threads and fusible threads with a first step subjected game</li><li>Fig. 4 shows a simplified and enlarged knitted fabric section with gemischtfasrigen threads with a first step subjected game</li><li>Fig. 5 shows a detail of a knitted fabric in an enlarged view</li></ul>

In Fig. 1 a two-ply sheet 1 is shown of knitted material, which is formed from individual prefabricated elastic panties 2a-2c. The individual panties are divided from each other by optically or mechanically detectable separation sections 3a to 3d, in. Which the two-ply material is forfeited to a location from which arise after disconnecting side seams of the pants. The lateral edges of the two-ply web are connected to one another exclusively in the edge portions 4a to 4e, whereby each of the gusset and the leg-holes are formed. The opposite edge portion 5 is knitted using rubber thread and forms after the separation of the individual pieces are each an elastic waistband.

In Fig. 2 is a two-ply sheet 6 is also shown of a textile material, which is made up of individual raw materials for elastic tights, which are in wesent union in the web longitudinal direction. The superimposed layers are along its entire edge regions 7, 8 are joined together, in particular forfeited together. Each periodically longitudinally extending separations 9 are provided along which the two boundary layers are also fully connected. In this way, the edges 7 and 8 form outer seams and the edges along the separation 9 inseams of produced tights. In this way, a body portion 10 and leg portions 11 forms, 12 of pre tights 15. Examples are shown periodically irregularly arranged separating sections, the partition portions 13a are 13b in the area of ​​the leg portions and the separating portions 14a, 14b in the region of the fuselage sections. This can be provided in two phases depending on the nature of the further manufacturing sequence and the finishing assembly, the finished separation, wherein a blend portion is formed.

In Fig. 3 a section of a knitted fabric is shown in the region of a separating section, which with 16 a thermally resistant carrier thread with 17 ae thermo formable melt threads are shown. Overall, this is inta shown kte fabric after knitting, while at the point marked by an arrow point the result of the pre-separation can be seen, in which the melt threads are destroyed and the carrier thread is unchanged.

In Figure 4 is again a Gewirkausschnitt after the kneading process is shown with a direction indicated by an arrow point after the first process step. All threads 18 a to d are of similar structure and have both thermally formed fiber portions and thermally resistant fiber components, particularly in its core area. After the first step of pre-separation are along a dividing line in each yarn, the proportion of the first type of fiber melted away, while the share of thermally more resistant fiber components continue wearing or collectively holds the web, which can accommodate the usual occurring during further transport and further processing tensile nondestructively.

In FIG. 5, a knitted fabric is represented with detail shown in the structure in which a carrier thread 16 and fusible threads 17 are visible.

LIST OF REFERENCE NUMBERS

<ul><li>1 sheet</li><li>2 panties (prefabricated)</li><li>3 release game</li><li>4 edge portion</li><li>5 edge region</li><li>6 web</li><li>7 edge region</li><li>8 edge region</li><li>9 separation</li><li>10 fuselage section</li><li>11 leg portion</li><li>12 leg portion</li><li>13 release game</li><li>14 release game</li><li>15 Tights (prefabricated)</li><li>16 support thread</li><li>17 fusion thread</li><li>18 yarn with double function</li></ul>