EP3238556B1 - Method for producing a flexible sheet material - Google Patents

Description

The invention relates to a method for producing a sheet, which has a first and second material layer, wherein the first material layer is placed on a substrate with a support surface, which is provided with at least one depression, and forming a receiving area for a filler in Furthermore, the second material layer is placed on the first material layer and the filling material, and further the first and the second material layer are pressed against each other by means of a pressing device, wherein in the Receiving area introduced filler material after solidification, the first material layer and the second material layer connects and causes a survey of the fabric.

In the prior art, various approaches for the production of fabrics, in particular textile fabrics, with reinforcements, for example edge reinforcements, are known. An example are plastic or metal inserts sewn or glued in between two layers of fabric. Such inserts are used, for example, to increase the dimensional stability and support of a brassiere. An example of such inserts is in the US 3,209,756 A shown. To reinforce an edge region, for example, an elastic seaming is known, wherein two layers are adhesively bonded in the edge region by means of an adhesive. Reinforced edge areas can also be formed by folding the fabric edge and sewing, with or without inlaid rubber. Even a knurling causes a certain edge reinforcement.

From the WO 2009/133469 A1 It is known to print and flock silicone onto a textile layer, in particular to form a border reinforcement.

In the US 2011/275279 A1 discloses a method of making basket elements for a basket of a brassiere. The basket member comprises a foam material which is preformed and then coated with adhesive. The air-permeable foam material is then placed with the adhesive layer up in a mold and bonded to form a vacuum with a heated thermoplastic film.

A method of the type mentioned is from the EP 1 211 956 B2 out. It is formed an undergarment, which has elevations, which serve in particular as edge reinforcement. The elevations are in this case caused by a introduced between two layers of material and solidified filler. For this purpose, depressions are introduced into the support surface of a base, which is formed by a support plate of a screen printing device. A laid on the platen first layer of material is pressed into the recesses of the support surface, so that forms receiving areas which are filled through openings of a Siebdrucksiebes with adhesive. The second material layer is placed and pressed. The garment can be cut in sequence, so that the formed elevation reinforces the edge area. Even knob-like elevations are possible. In addition, inserts can be inserted into the introduced into the respective receiving area filling material. A problem with the method resulting from this document is that, during the formation of the fabric in the regions of the depressions, wrinkles may form in the first material layer or the receiving regions for the filling material may be incomplete.

The object of the invention is to provide an advantageous method of the type mentioned, with a simple production of the sheet is made possible with a sufficiently good reproducibility.

According to the invention, this is achieved by a method having the features of claim 1.

In the method according to the invention, during the introduction of the filling material into the receiving region, the first material layer is held in contact with the bottom of the depression in the bearing surface of the substrate. This can be done by gluing by means of an adhesive or by sucking the first material layer to the bottom of the depression. Wrinkling or slipping of the first material layer before, during or after the introduction of the filling material in the each receiving area can be prevented and it can be ensured that the first material layer actually rests on the bottom of the recess, so the desired size of the receiving area for the filling material is achieved.

In the variant of the invention in which the first material layer is held by the adhesive at the bottom of the depression, the adhesive application can advantageously be effected by means of a spray nozzle or by means of a application roller, and conveniently on the support surface of the substrate. In principle, the adhesive could instead or additionally be applied to the first material layer.

As an adhesive, such an adhesive is used that the sheet can be removed after the introduction and solidification of the filling material without damaging the first material layer of the substrate.

In the embodiment variant of the invention, in which the first material layer is held by suction at the bottom of the depression, air suction channels can be formed in the substrate, through which air is sucked to suck in the first material layer. Alternatively, the pad could comprise a porous material through which the air extraction takes place.

An advantageous embodiment of the invention provides that the first material layer is held not only at the bottom of the recess during the introduction of the filling material in the receiving area, but also in a region adjacent to the recess area of the support surface, preferably in both areas adjacent to the recess areas of Support surface is held on the support surface, by gluing by means of an adhesive or by suction. It could also be provided that the first material layer is held over the entire surface of the support surface by means of an adhesive or by suction.

The introduction of the filling material in the respective receiving area can be advantageously carried out by means of an injection device, the one of computerized numerical control is controlled. A robot-guided nozzle of the injection device can thereby be moved along the receiving areas in order to inject the filling material into them.

Other possibilities would be to manually or mechanically introduce the filling material through openings in a template by means of a spatula or doctor blade into the receiving areas.

Advantageously, the filler is elastic after solidification. Due to the elasticity of the filling material, an overall elasticity of the fabric can also be achieved if the first and second layers of material are likewise elastically extensible. Thus, although the first and second layers of material are elastically extensible, e.g. elastically stretchable strands, for example, be formed in edge regions of the sheet. Thus, for example, a very good support function of a garment can be formed in defined areas.

Conveniently, the filler in the solidified state has an elongation at break of more than 100%, preferably more than 200%. Depending on the filler used, an elongation at break of more than 300% can also be present, for example in the case of using silicone, the elongation at break can be in the range of 400% or even more (up to more than 1000%).

If the first and second layers of material are cut off along the edge of at least one bead-like projection after solidification of the filler material, then such a bead-like projection can form an edge reinforcement of the sheet and of an end product, for example a garment, produced from the fabric.

In an expedient embodiment of the invention, the first and the second material layers, or at least one of these material layers, consist of a textile material.

A fabric according to the invention can be used advantageously as a semi-finished product for the production of clothing, in particular for underwear. The elevations of the fabric may serve to reinforce and / or contour portions of the fabric. On the one hand, the elevations can influence the mechanical properties of the fabric, wherein a protuberance allows, for example, a localized stiffening of the fabric, e.g. to increase the carrying capacity of the garment. On the other hand, elevations can also be formed for setting optical accents of the item of clothing.

Possible fields of application of fabrics formed in accordance with the invention are, for example, bras or underwear.

However, a fabric according to the invention can also be used in other areas, for example in the field of the vehicle industry (automobile, aircraft, bus, train, etc.), furniture industry or in other technical fields. By means of the construction according to the invention, elevations can also be provided in such other areas, which serve to reinforce or stiffen or through which optical accents can be set.

• Fig. 1 eine Schrägsicht einer Unterlage zur Herstellung eines Flächengebildes mit dem erfindungsgemäßen Verfahren;
• Fig. 2 ein vergrößertes Detail A von Fig. 1;
• Fig. 3 eine Draufsicht auf die Unterlage von Fig. 1;
• Fig. 4 einen Schnitt entlang der Linie BB von Fig. 3;
• Fig. 5 ein vergrößertes Detail der Unterlage mit einer Sprühdüse zum Aufsprühen eines Klebstoffs;
• Fig. 6 eine schematische Schnittdarstellung eines Abschnitts der Unterlage sowie einer ersten Materiallage, welche auf die Unterlage aufgelegt wird;
• Fig. 7 die Unterlage mit der aufgelegten Materiallage und einer Anpressvorrichtung;
• Fig. 8 den Arbeitsschritt beim Anpressen der ersten Materiallage mit der Anpressvorrichtung;
• Fig. 9 eine schematische Darstellung eines Abschnitts der Unterlage und der ersten Materiallage nach dem Anpressen mittels der Anpressvorrichtung;
• Fig. 10 ein vergrößertes Detail C von Fig. 9;
• Fig. 11 eine Schrägsicht der Unterlage mit der ersten Materiallage und einer Düse einer Einspritzvorrichtung beim Einbringen eines Füllmaterials;
• Fig. 12 die Teile von Fig. 11 im schematischen Vertikalschnitt;
• Fig. 13 ein vergrößertes Detail D von Fig. 12;
• Fig. 14 einen schematischen Schnitt analog Fig. 6 beim Aufbringen der zweiten Materiallage;
• Fig. 15 die Situation nach dem Aufbringen der zweiten Materiallage zusammen mit einer Anpressvorrichtung;
• Fig. 16 der Verfahrensschritt des Anpressens der zweiten Materiallage mittels der Anpressvorrichtung;
• Fig. 17 die Situation nach dem Anpressen der zweiten Materiallage;
• Fig. 18 eine schematische Darstellung beim Abziehen des Flächengebildes von der Unterlage;
• Fig. 19 ein vergrößertes Detail E von Fig. 18;
• Fig. 20 eine Schrägsicht des Flächengebildes nach dem Abziehen von der Unterlage;
• Fig. 21 ein vergrößertes Detail F von Fig. 20;
• Fig. 22 eine schematische Darstellung beim Abschneiden der ersten und zweiten Materiallage entlang des Randes einer Erhebung;
• Fig. 23 eine Schrägsicht des fertiggestellten Flächengebildes, im Ausführungsbeispiel als Halbfertigprodukt zur Herstellung eines Büstenhalters;
• Fig. 24 bis 30 das Einbringen von Füllmaterial in einen Aufnahmebereich gemäß einer zweiten Ausführungsvariante der Erfindung, wobei Fig. 26 ein vergrößertes Detail G von Fig. 25 und Fig. 30 ein vergrößertes Detail H von Fig. 29 darstellt;
• Fig. 31 und 32 das Einbringen von Füllmaterial in einen Aufnahmebereich gemäß einer dritten Ausführungsvariante der Erfindung;
• Fig. 33 eine schematische Darstellung einer modifizierten Vorrichtung zum Anpressen der ersten Materiallage an die Auflagefläche;
• Fig. 34 eine schematische Darstellung einer unterschiedlichen Art der Aufbringung eines Klebstoffs auf die Auflagefläche der Unterlage;
• Fig. 35 eine schematische Darstellung der Unterlage zur Durchführung des erfindungsgemäßen Verfahrens entsprechend einer weiteren Ausführungsform;
• Fig. 36 eine schematische Darstellung von Beispielen für unterschiedliche mögliche Querschnittsformen von nutförmigen Vertiefungen in der Auflagefläche;
• Fig. 37a, b und c eine Schrägsicht, Draufsicht und einen Vertikalschnitt (Schnittlinie II in Fig. 37b) eines Beispiels für eine Vertiefung in der Auflagefläche mit über ihren Verlauf variierender Querschnittsform;
• Fig. 38 eine Draufsicht auf eine Unterlage gemäß einer weiteren Ausführungsform der Erfindung;
• Fig. 39 einen Schnitt entlang der Linie II von Fig. 38;
• Fig. 40 und 41 eine Ansicht auf die Rückseite und eine Seitenansicht einer mit dem erfindungsgemäßen Verfahren entsprechend diesem Ausführungsbeispiel hergestellten Hose;
• Fig. 42 bis 45 Darstellungen analog zu den Fig. 38 bis 41 (wobei Fig. 43 einen Schnitt entlang der Linie JJ von Fig. 42 darstellt) für noch ein weiteres Ausführungsbeispiel der Erfindung.

Further advantages and details of the invention are explained below with reference to the accompanying drawings. In this show:

• Fig. 1 an oblique view of a substrate for the production of a sheet with the method according to the invention;
• Fig. 2 an enlarged detail A of Fig. 1 ;
• Fig. 3 a plan view of the pad of Fig. 1 ;
• Fig. 4 a section along the line BB of Fig. 3 ;
• Fig. 5 an enlarged detail of the pad with a spray nozzle for spraying an adhesive;
• Fig. 6 a schematic sectional view of a portion of the pad and a first layer of material, which is placed on the pad;
• Fig. 7 the base with the applied material layer and a pressing device;
• Fig. 8 the step in pressing the first material layer with the pressing device;
• Fig. 9 a schematic representation of a portion of the substrate and the first material layer after pressing by means of the pressing device;
• Fig. 10 an enlarged detail C of Fig. 9 ;
• Fig. 11 an oblique view of the substrate with the first layer of material and a nozzle of an injection device during the introduction of a filling material;
• Fig. 12 the parts of Fig. 11 in schematic vertical section;
• Fig. 13 an enlarged detail D of Fig. 12 ;
• Fig. 14 a schematic section analog Fig. 6 during the application of the second material layer;
• Fig. 15 the situation after the application of the second material layer together with a pressing device;
• Fig. 16 the step of pressing the second material layer by means of the pressing device;
• Fig. 17 the situation after pressing the second material layer;
• Fig. 18 a schematic representation when removing the fabric from the pad;
• Fig. 19 an enlarged detail E of Fig. 18 ;
• Fig. 20 an oblique view of the sheet after removal from the pad;
• Fig. 21 an enlarged detail F of Fig. 20 ;
• Fig. 22 a schematic representation when cutting the first and second material layer along the edge of a survey;
• Fig. 23 an oblique view of the finished fabric, in the embodiment as a semi-finished product for producing a brassiere;
• Fig. 24 to 30 the introduction of filler in a receiving area according to a second embodiment of the invention, wherein Fig. 26 an enlarged detail G of Fig. 25 and Fig. 30 an enlarged detail H of Fig. 29 represents;
• FIGS. 31 and 32 the introduction of filling material in a receiving area according to a third embodiment of the invention;
• Fig. 33 a schematic representation of a modified device for pressing the first material layer to the support surface;
• Fig. 34 a schematic representation of a different way of applying an adhesive to the support surface of the pad;
• Fig. 35 a schematic representation of the pad for carrying out the method according to the invention according to a further embodiment;
• Fig. 36 a schematic representation of examples of different possible cross-sectional shapes of groove-shaped depressions in the support surface;
• Fig. 37a, b and c an oblique view, top view and a vertical section (section line II in Fig. 37b ) an example of a recess in the support surface with over its course varying cross-sectional shape;
• Fig. 38 a plan view of a pad according to another embodiment of the invention;
• Fig. 39 a section along the line II of Fig. 38 ;
• FIGS. 40 and 41 a view on the back and a side view of a pants produced by the method according to the invention according to this embodiment;
• FIGS. 42 to 45 Representations analogous to the Fig. 38 to 41 (in which Fig. 43 a section along the line JJ of Fig. 42 represents) for yet another embodiment of the invention.

A first exemplary embodiment of a method according to the invention is described below with reference to FIG Fig. 1 to 23 explained. The production of a fabric according to the invention is explained using the example of the formation of a semi-finished product for a brassiere, wherein other textile fabrics, in particular semi-finished products for clothing, for example underwear, or even non-textile fabrics can be formed by the method according to the invention.

It is first a plate-shaped base in the embodiment. 1 provided, which has a support surface 2, which is provided with a plurality of groove-shaped, ie elongated, recesses 3 here. The bottom of a respective recess 3 (= the support surface 2 of the pad 1 in the region of the recess 3) has seen in the embodiment in cross section (see. Fig. 4 ) a circular arc-shaped contour. Other contours, for example, curved in another form or polygonal contours, but quite conceivable and possible.

At least part of the groove-shaped depressions 3 extend in an edge region of the sheet to be formed. In the exemplary embodiment, at least one groove-shaped recess runs along each edge region of the sheet to be formed. Depending on the load for which a respective edge region is to be designed, two or more parallel or parallel recesses 3 can be provided. Thus, in the exemplary embodiment, for example, along the lower edge region of the semifinished product to be formed for a brassiere run three parallel groove-shaped depressions 3.

The pad 1 can be made of a plastic, but also of another material, e.g. Metal or wood, be formed. The depressions 3 can be introduced with a milling device.

It follows a step in which an adhesive 4 is applied to the support surface 2. In Fig. 5 For this purpose, a spray nozzle 5 for spraying the adhesive 4 is shown. By the method of the spray nozzle 5 on the support surface 2, the support surface 2 can be sprayed over the entire surface with adhesive 4. It would also be conceivable and possible to displace the spray nozzle 5 only along the depressions 3, so that adhesive is applied only in the region of the depressions 3, preferably at least also in regions adjoining the depressions 3 on both sides.

As adhesive 4, for example, a pressure-sensitive adhesive can be used. For example Such adhesives are known for fixing textiles to printing plates of screen printing devices in order to prevent slippage of the textiles during printing.

Conveniently, a water-soluble adhesive is used. This adhesive residues can be removed without residue in a simple manner by washing.

As a result, the first material layer 6 is deposited on the support surface 2 of the base 1, cf. Fig. 6 , In the region of a respective depression 3, the first material layer 6 is hereby still spaced from the support surface 2, that is, from the bottom of the respective depression 3. As a result, a pressing device 7 is brought to the first material layer 6, cf. Fig. 7 , and pressed against the first material layer 6 and pad 1, see. Fig. 8 , The pressing device 7 has an elastically deformable layer 7a facing the first material layer 6, for example made of foam, and a dimensionally stable layer 7b arranged on the rear side thereof. If the deformable layer 7a is pressed against the first material layer 6 by means of the dimensionally stable layer 7b, then the first material layer 6 in the region of the depression 3 is pressed by the deformable layer 7a against the bottom of the depression 3, the deformable layer 7a being in the region of Well 3 protrudes, cf. Fig. 8 , The first material layer 6 is thus pressed in the region of a respective recess 3 at the bottom of the recess 3 and the adhesive 4 applied thereto and thereby adhered to the bottom of the recess 3. This state of the first material layer 6 is in the Fig. 9 and 10 shown.

It is thus formed in the region of a respective recess 3 of the pad 1 together with the first material layer 6, a trough-shaped receiving area 8, cf. Fig. 9-11 , in which a filling material 9 is introduced in a subsequent working step, cf. Fig. 11-13 , In the exemplary embodiment, the introduction of the filling material 9 by means of an injection device 10, from which in the FIGS. 11 and 12 only the area of a nozzle is shown, through which the filling material 9 is pressed. The nozzle of the injection device 10 can be arbitrarily moved two-dimensionally by a drive, not shown in the figures be so that at least the part of the support surface 2 of the pad 1 can be swept over, in which recesses 3 are formed. The movement of the nozzle can in this case take place in an analogous manner, as is known in a CNC milling machine. The control of the movement of the nozzle is effected by a computer-aided numerical control. Again, this can be done in a manner analogous to a CNC milling machine. As injection device 10, a CNC milling machine can be used, which is equipped instead of a milling head with a nozzle for injecting filler 9.

The nozzle of the injection device 10 is moved along a respective depression 3 introduced in the support surface 2 of the base 1, filling material 9 being injected into the respective receiving region 8, cf. Fig. 11-13 , The receiving area 8 is thus filled with filling material 9. In many types of sheet material to be formed, it is advantageous if the receiving area 8 is filled at least completely with filling material 9. There may also be a certain supernatant of filler 9, as this Fig. 14 evident. That is, the filling material 9 bulges over the height of the support surface 2, as it is present in the region adjacent to the recess 3, upwards.

Also not complete, e.g. in the range of 80% to 95% lying filling of the receiving area 8 may be provided.

As a result, a second material layer 11 is placed on the first material layer 6 and the filling material 9, cf. Fig. 14 ,

In a subsequent method step, the second material layer 11 is pressed against the first material layer 6 and the filling material 9. For this purpose, a pressing device 12 is moved up to the second material layer 11, cf. Fig. 15 , and pressed against the second material layer 11, cf. Fig. 16 ,

The pressing device 12 may be formed in an analogous manner as the pressing device 7. However, the situation facing the second material layer 11 must be here not necessarily be elastically deformable or may have a lower elastic deformability than the layer 7a of the pressing device 7.

The pressing of the second material layer 11 takes place in the not yet solidified state of the filling material 9.

Before the so formed sheet is removed from the base 1, an at least partial solidification of the filler 9 is awaited, which advantageously takes a period of less than ten minutes, preferably less than 5 minutes to complete. The pressing device 12 can in this case continue to press the second material layer 11. However, at least over part of the time required for solidifying the filling material 9, the pressing device 12 can already be lifted off the second material layer 11 again.

The solidification of the filling material 9 may optionally be accelerated by supplying heat, depending on the nature of the filling material. For example, an infrared radiator can be used, heating in an oven or heating the pad 1.

When the filling material 9 is sufficiently solidified, the sheet thus formed is peeled off from the base 1, cf. Fig. 18 , The effect of the adhesive 4, over which the first material layer 6 is glued to the support surface 2, must be overcome in this case. In this case, an adhesive 4 having a sufficiently low adhesion is used so that a nondestructive removal of the first material layer 6 is made possible.

Adhesive residues of adhesive 4 can be removed in a later step, for example by washing.

The deducted from the pad 1 and reversed surface product is in Fig. 20 and 21 shown. In corresponding to the groove-shaped recesses 3 areas of the first material layer 6 are now in the embodiment longitudinally extending elevations 13 of the sheet, which are caused by the filler 9.

As a result, unnecessary parts of the fabric are cut off, as shown schematically in FIG Fig. 22 is shown. The sheet is placed on the surface of a cutting table 14. A first cutting tool 15 is located in a groove of the cutting table 14 and is moved from below against the fabric. A second cutting tool 16 is moved from above against the fabric. Either the cutting tools 15, 16 opposite the sheet or the sheet is moved with respect to the cutting tools. In this way, the sheet is cut off, here along the edge of a survey thirteenth

Also, a single cutting tool engageable with the sheet could be used for cutting, which cutting may be against a fixed edge or surface (which may also be referred to as anvos).

The finished fabric, which in the embodiment represents a semi-finished product for a brassiere, is in Fig. 23 shown. Along the side edges of the sheet at least one elevation 13 in each case extends, which thus forms an edge reinforcement. Further elevations 13 run below the trainee basket area.

In further steps, which are not the subject of the present invention, the further assembly of the brassiere takes place, comprising working steps for the attachment of closure parts and for the formation of the cups.

It is conceivable and possible to insert at least one insert into at least one of the receiving areas 8, before or after the filling of filling material 9, before placing the second material layer 11. For example, straps and / or closure parts for the straps of the brassiere arranged below the trainees' cups could be inserted.

The filling material 9 is a fluid when it is introduced into the respective receiving region 8, ie before its solidification. The viscosity is sufficiently high that the filling material 9 does not completely penetrate the material layers 6, 11. After the solidification of the filling material 9, the material layers 6, 11 are connected via the filling material 9, thus adhere to one another via the filling material 9. The filling material 9 can thus also be referred to as an adhesive.

The solidification of the filling material 9 is preferably carried out by chemical curing. The curing of the filling material 9 is thus carried out in particular by crosslinking.

In an advantageous embodiment of the invention is used as filler 9 silicone (silicone rubber). Other types of filling materials 9 could also be used, e.g. Polyurethane or acrylic.

The filler 9 is advantageously elastic in the solidified state. Conveniently, the modulus of elasticity of the solidified filler is less than 1000 N / mm ² , preferably less than 100 N / mm ² .

The elongation at break of the solidified filler 9 may be, for example, in the range of 100 to 500%. Also values of more than 500% are possible.

The tensile strength of the solidified filler 9 is preferably less than 100 N / mm ² .

A second embodiment of the invention is described below with reference to the Fig. 24 to 30 described. Apart from the differences described below, this second embodiment corresponds to the first embodiment described above.

Before filling the filling material 9 in the receiving areas 8, a template 17 is in this embodiment in the manner described above in this embodiment placed on the support surface 2 applied first layer of material 6. The template 17 has openings 18. The course of a respective opening 18 corresponds to the course of the respective receiving area 8. The filling material 9 is filled through the openings 18 in the receiving areas 8. Excess filling material 9 is in this case prevented by the template 17 from the first material layer 6.

Before removing the template 17, excess filling material is removed by means of a spatula 19, cf. FIGS. 27 and 28 , After removal of the template 17, the filled receiving area 8 remains behind, cf. FIGS. 29 and 30 , The filling material 9 is only above the thickness of the template 17 on the present on both sides of the respective receiving area 8 level of the top of the first material layer 6 above.

In this second embodiment variant, the filling material 9 could, for example, also be introduced manually into the receiving regions 8.

In the in the FIGS. 31 and 32 illustrated third variant, the difference from the first embodiment is that the filler 9 is introduced through a template 17 'in the receiving areas 8, which is designed in the manner of a screen printing stencil. Although the template 17 'thus covers the receiving areas 8, it has a grid structure which is permeable to the filling material 9 above the receiving areas 8. In other areas, the template 17 'is impermeable to the filler 9.

For introducing the filling material 9 into the receiving regions 8, filling material 9 is applied to the template 17 'and spread with a doctor blade so that it passes through the template 17' in regions above the receiving regions 8, the receiving regions 8 being filled with the filling material 9.

The situation after removing the template 17 'is in Fig. 32 shown. Corresponding to the distance of the template 17 'from the first material layer 6, the filling material 9 projects beyond the respective receiving region 8 on both sides present level of the top of the first material layer 6 above.

Even with a template 17 with openings 18, as in the Fig. 24 to 30 illustrated filling material 9 could be introduced with a doctor blade or spatula through the openings in the receiving areas 8.

The subsequent application of the second material layer 11 can take place in the manner described above.

In Fig. 33 a possible embodiment variant for the pressing of the first material layer 6 is shown on the applied to the support surface 2 adhesive 4. The pressing device 7 'here has a roller which carries on a dimensionally stable core 7c a deformable layer 7a, for example of foam. When rolling the roll over the first material layer 6, the first material layer 6 is pressed against the support surface 2, wherein in the region of depressions 3, the deformable layer 7a bulges into it, so that the first material layer 6 is pressed against the bottom of the respective depression 3.

Fig. 34 shows a possible alternative embodiment for the application of adhesive 4 on the support surface 2 of the pad 1. The adhesive 4 is rolled on the support surface 2 by means of an applicator roller 20. The applicator roll 20 has a deformable outer layer 20a, for example in the form of foam. In the region of a respective depression 3, the deformable layer 20a bulges into it, so that the bottom of the depression 3 is also coated with adhesive 4.

The application of adhesive 4 to the application roller 20 takes place in the in Fig. 34 schematically illustrated embodiment by means of a transfer roller 21, on which adhesive 4 is applied through a funnel 25.

Fig. 35 FIG. 3 shows an alternative possibility of applying the first material layer 6 to the bottom of the depression 3 before the introduction of the filling material 9 and during the introduction of the filling material 9 into contact with the bottom of the depression 3 to keep. Instead of using adhesive, the first material layer 6 is sucked in here. For this purpose, the substrate 1 is provided with air suction channels 22, through which air can be sucked out. At least in the areas of the support surface 2, which form the bottom of a respective recess 3, open such Luftabsaugkanäle 22, preferably in both sides of the respective recess 3 adjacent areas of the support surface 2, as in Fig. 35 is shown.

The remote from the support surface 2 ends of Luftabsaugkanäle 22 start from a collecting channel 23, from which the air is sucked by means of a suction line 24 to which a (not shown in the figures) pump is sucked.

In the areas of the support surface 2, in which air exhaust ducts 22 open, the first material layer 6 placed on the support surface 2 is thus applied to the support surface 2 by negative pressure. This negative pressure is preferably maintained at least until completion of the filling of the filling material 9 in the receiving areas 8 and the laying and pressing of the second material layer 11.

Since after removal of this negative pressure, so after the end of the suction of air through the suction channels 22, the first layer of material 6 can be lifted without resistance from the pad 1, in this embodiment, the removal of the formed sheet of the pad 1 may already be done before the filler 9 is cured.

Luftabsaugkanäle 22 could also open over the entire surface of the support surface 2, so not only in the areas of the wells 3 and on both sides adjoining areas.

The pad 1 may thus be formed in the manner of a vacuum table in this embodiment.

Incidentally, the formation of the sheet for this embodiment is analogous as described in connection with the first embodiment and the description of the first embodiment and possible modifications thereto can be used analogously.

Instead of individual Luftabsaugkanälen 22, a pad with a porous layer can be used, through the pores, the air extraction takes place.

Fig. 36 shows various cross-sectional shapes of wells 3, as they can be provided in a support surface 2 of a pad 1 to form elevations with corresponding cross-sectional shapes.

The cross-sectional shape and / or width and / or depth of a recess 3 may also vary over its longitudinal extension, as shown in FIG Fig. 37a-c is shown by way of example.

Instead of longitudinally extending depressions or in addition thereto, other recesses may also be provided in the bearing surface of the substrate. For example, it can thereby be formed knob-like elevations of the sheet.

For example, a recess without a pronounced longitudinal extension (that is, without a groove-like design) in its shape, the central, in plan view diamond-shaped portion of in Fig. 37a-c correspond well.

In the embodiments described above, the support surface 2 is flat apart from the depressions 3 (in the region of which the receiving regions 8 are formed after the first material layer has been placed, into which filling material 9 is filled), ie the regions between the depressions 3 lie in a common area Level. In other exemplary embodiments, the support surface 2, apart from the depressions 3, may have a three-dimensional contour, at least in sections or as a whole. For example, during training a brassiere have the support surface in the area of the cups of brassiere troughs. Recesses 3, which serve to form receiving areas 8 for a filling material 9, could be arranged at least partially in these hollows. Instead of depressions or in addition to surveys of the support surface may be provided.

In the case of such, apart from the wells 3 at least partially three-dimensionally extending support surface a correspondingly preformed first material layer 6 and / or second material layer 11 could be used, wherein the contour of the first material layer 6 and / or second material layer 11 with the contour of the support surface. 2 corresponds. The first and / or second material layers 6, 11 would then be applied correspondingly positioned. On the other hand, the first material layer 6 and / or second material layer 11 could be designed to be correspondingly stretchable, so that it adapts to the contour of the support surface 2 when it is applied to the support surface 2. For example, pressing against the support surface 2 could be effected by means of an elastically deformable layer which adapts to the contour of the support surface 2 during pressing.

By such, apart from the depressions 3 at least partially three-dimensional design of the support surface 2, in particular a preforming of formed by the filler material 9 elastically extensible strands can be achieved. These can thus be adapted to body contours, so that, for example, only from a certain size of the bulge of a textile fabric, an increasing support effect is achieved. For example, apart from the recesses 3 at least in sections, three-dimensional bearing surface can also be used to form a buttock section of pantyhose or other pants, in particular underpants.

Such embodiments are in the Fig. 39 to 45 shown. According to the FIGS. 38 and 39 forms the bearing surface 2 in the buttocks area of the trainees Garment two troughs 26. The bottoms of these troughs 26 forming portions of Auflagefäche 2 have recesses 3, which are groove-shaped and can, for example, as shown horseshoe-shaped. The formation of the textile semi-finished or finished product, here a partially or completely finished pants, in particular tights, takes place in the manner described with reference to the preceding embodiments. In particular, the first layer of material resting on the bottom of the respective recess 3 forms a receiving region into which a filling material is filled, whereupon a second material layer is applied.

The trained, here string-shaped elevations 13 may for example have a support function. The dashed lines in Fig. 40 indicate where the troughs 26 were in the manufacture of the textile surface product. For example, the second material layer may extend straight over these areas or even beyond these areas. At their edges, the second material layer can be connected to the first material layer, for example by sewing or gluing.

The second material layer is therefore within (= body side) of the first material layer. But also a reverse training is possible, in which the first material layer is on the body-facing side of the textile fabric, is conceivable and possible. In this case, the first material layer could also have a smaller extent than the second material layer.

A similar embodiment is in the FIGS. 42 to 45 shown. It is provided a single groove-shaped depression, which passes through the wells 26 and also passes through areas which are adjacent to and between the wells 26. The trained rope-shaped elevation 13 may have a shaping effect.

Such, apart from the wells 3 at least partially three-dimensional design of the support surface 2 may therefore in particular comprise at least one trough 26 and / or elevation of the support surface 2, in the region of the at least one recess 3 for forming a receiving area 8 for filler 9 is at least partially, or especially for the case of a groove-shaped recess 3, at least over part of its longitudinal extent , For example, this can be achieved a shaping property of a garment.

Also other types of inserts than those already mentioned can be inserted before placing the second material layer 11 in at least one of the receiving areas 8. Such inserts may i.a. electrical cables for supplying electrical consumers, heating conductors, sensors or other electrical components.

For the formation of textile fabrics, the first and second material layers 6, 11 can be formed from a textile material, for example a knitted fabric, knitted fabric or fabric. Also, only one of the two material layers 6, 11 could be formed by a textile material and the other material layer 6, 11 may be formed in the form of a film.

Embodiments are also possible in which both the first material layer 6 and the second material layer 11 are formed by a film.

By a method according to the invention, instead of a semi-finished product, a finished product could also be formed.

Legend to the reference numbers:

1

document

2

bearing surface

3

deepening

4

adhesive

5

spray nozzle

6

first material situation

7, 7 '

pressing device

7a

deformable position

7b

dimensionally stable position

7c

core

8th

reception area

9

filling material

10

Injector

11

second material situation

12

pressing device

13

survey

14

cutting table

15

cutting tool

16

cutting tool

17, 17 '

template

18

opening

19

spatula

20

applicator roll

20a

deformable position

21

transfer roller

22

air suction

23

collecting duct

24

suction

25

funnel

26

trough

Claims (14)

1. Method of producing a flexible sheet material which has a first and a second layer of material (6, 11), the first layer of material (6) being applied to a support (1) which has a supporting surface (2) which is provided at least with a depression (3) and being pressed into the depression (3) and so forming a receiving region (8) for a filler material (9), the filler material (9) then being introduced into the receiving region (8), the second layer of material (11) then being applied to the first layer of material (6) and the filler material (9), and the first and the second layer of material (6, 11) then being pressed against one another by means of a pressure-applying arrangement (7), the filler material (9) which has been introduced into the receiving region (8), on solidifying, connecting the first layer of material (6) and the second layer of material (11) together and producing an elevation (13) in the flexible sheet material, characterised in that, during the introduction of the filler material (9), the first layer of material (6) is held in contact with the floor of the depression (3) by bonding-on the first layer of material (6) by means of an adhesive (4) or by applying suction to the first layer of material (6).
2. Method according to claim 1, characterised in that, during the introduction of the filler material (9), the first layer of material (6) is also held in contact, by the bonding-on of the first layer of material (6) by means of an adhesive (4) or by the application of suction to the first layer of material (6), with a region of the supporting surface (2) which adjoins the depression (3), and preferably with regions of the supporting surface (2) which adjoin the depression (3) on both sides thereof.
3. Method according to claim 1 or 2, characterised in that the adhesive (4) is applied to the supporting surface (2) or the first layer of material (6) by means of an applicator roller (20) or by means of a spray nozzle (5).
4. Method according to claim 1 or 2, characterised in that there are formed in the support (1) passages for the sucking out of air (22) through which air is sucked out to apply the first layer of material (6) to the supporting surface (2) by suction.
5. Method according to one of claims 1 to 4, characterised in that the filler material (9) which connects the first and second layers of material (6, 11) is elastic in the solidified state.
6. Method according to one of claims 1 to 5, characterised in that the filler material (9) is introduced into the receiving region (8) by means of an injection arrangement (10) which is controlled by a control system using computer numerical control.
7. Method according to one of claims 1 to 6, characterised in that the filler material (9) is introduced into the receiving region (8) through at least one opening (18) in a template (17, 17').
8. Method according to one of claims 1 to 7, characterised in that, after the solidification of the filler material (9), the first and second layers of material (6, 11) are trimmed off along the edge of at least one elevation (13).
9. Method according to one of claims 1 to 8, characterised in that the depression (3) is in the form of a groove.
10. Method according to claim 9, characterised in that the supporting surface (2) has a plurality of depressions (3) in groove form, with at least a portion or portions of least two depressions (3) extending parallel to one another.
11. Method according to one of claims 1 to 10, characterised in that the first and/or the second layer of material (6, 11) is formed from a textile material.
12. Method according to one of claims 1 to 11, characterised in that the first layer of material (6) is pressed against the supporting surface (2) by a pressure-applying arrangement (7, 7') before the filler material (9) is introduced, the pressure-applying arrangement (7, 7') having an elastically deformable layer (7a) which is adjacent the first layer of material (6).
13. Method according to one of claims 1 to 12, characterised in that, apart from the depressions (3) to form the receiving regions (8) for the filler material (9), the supporting surface (2) is of a plane form.
14. Method according to one of claims 1 to 12, characterised in that, apart from the depressions (3) to form the receiving regions (8) for the filler material (9), at least a portion or portions of the supporting surface (2) has/have a three-dimensional contour.

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