EP1165869B1 - Method for producing colourfully patterned textile flat materials, system for carrying out said method and textile flat material produced by said method - Google Patents

Abstract

A method of manufacturing of colored, patterned areal textile structures according to which at least four weft threads of different base color are inserted in a specific constant sequence, and a constant cell is formed together with at least one warp thread, and wherein the weft threads are tied off in the cell with the warp thread so that a color cell with a specific color impression is produced.

Description

The invention relates to a method for producing colored patterned textile fabrics according to the preamble of claim 1.

For the production of woven fabric with a pair of warp threads and a plurality of weft threads, a method is known in which first a basic weft and then one or more embroidery shots with different colors in a selectable order in an embroidery line, ie with switched off device for the Drawn product in the shed and tied by a warp thread. For the design of the loom, this means that the device for the fabric removal for entry of the embroidery or shots must be turned off, so that the required gearbox is subject to high dynamic stress and an electronically controlled device, eg with a servomotor does not meet the requirements and that weft yarn packages are provided on the loom according to the number of colors provided in the fabric Need to become. In addition to the technical complexity and the high number of weft coils with yarns of different colors, the limitation of the speed of the loom proves to be disadvantageous.

In order to reduce the number of weft threads, another method has become known for the production of such fabrics, in which, for example, a basic weft F and three embroidery shots with the colors blue, green and red also entered into an embroidery line and tied by a warp thread and a color cell form ( Fig. 1 ). It should be noted that the number of embroidery shots is not limited. In this case, the embroidery shots are entered with the device switched off for the take-off of fabric. This method has the disadvantage that the tissue becomes bulky. For the loom, there are also the disadvantages mentioned above.

The above-mentioned methods also have the common disadvantage that, depending on the fabric pattern, weft threads float on the back of the fabric, with the length of the floating weft threads usually increasing with the number of colored weft threads.

If label baths are produced with the known methods from a wide web, a large number of weft threads and a correspondingly large thread mass must be severed to form the edges. This has the disadvantages that at the edge of the labels a high and thick brow is produced with different color mixing and a higher cutting performance is required.

From the DE-A 44 38 535 For example, a method of jacquard weaving a colored fabric is known. This method is a use of the printing technique known screening method with a return of the colors of the template to the basic colors. The image to be weaved is split into halftone dots of the colors yellow, red and blue as well as black and white, and the fabric is woven from wearable dots of these colors and brightness.

It has been shown that when weaving with weft threads in the colors yellow, red and blue no color mixing as in color printing can be achieved and also the number of colors is limited. In color printing, the colors are printed one after the other, while in weaving, color cells are formed by the weft threads and the binding.

The invention aims to remedy this situation. The invention, as characterized in the claims solves the problem of improving a process for the production of colored patterned textile fabrics.

In the method according to the invention, the fabric technique with warp threads and at least four weft threads is used. There are weft threads in the primary colors red, blue and yellow and an additional color, especially green used. A color cell is formed in which four weft threads in the elementary color red, green, blue and yellow are introduced in a specific, consistent sequence and bound by one of the warp threads. Depending on the selection of the warp threads in terms of color and depending on the binding of the weft threads by the warp a color impression is generated in the cell. The entry of four weft threads with the different colors in the same order means for the loom advantageous and significant simplification, such that on the one hand only four weft yarn zones are required and on the other hand, a shutdown of the device for the fabric removal deleted, so that the Loom with a high speed, eg 2000 rpm can be operated. By the respective binding of the weft threads a certain color impression is produced in the color cell. The color intensity is determined by the combination of the float length of the weft thread over the warp thread and the respective color of the warp thread, which reach the blade surface. In combination with a warp of certain color, cells can be created with fourteen colors. It is advantageous if two warp threads of different color and a weft float floatation up to seven cells are used per cell, because this can produce a textile fabric with up to one hundred and ninety-six color impressions. The color impressions are provided with a code and stored in a color scale, so that the user can select the desired color impression without binding technical manipulations in an advantageous and simple manner. The number of color impressions can be increased by using a higher number of weft threads. While a warp thread binds the weft threads according to the color impression to be produced, other warp threads can be bound to the back of the fabric. This has the advantage that the floatation of the weft threads is eliminated.

The invention will be explained with reference to the accompanying drawings.

Fig.1

Einen Querschnitt durch ein nach einem bekannten Verfahren hergestelltes Gewebe;

Fig.2

eine Legende der in den nachfolgenden Figuren verwendeten Symbole;

Fig.3

eine schematische Darstellung der Bindung einer aus Schussfäden mit vier Farben gegildeten Farbzelle mit einem hellroten Farbeindruck;

Fig.3a

eine schematische Darstellung der Bindung einer aus Schussfäden mit sechs Farben gebildeten Farbzelle mit einem hellroten Farbeindruck;

Fig.4

einen Schnitt entlang der Kettlinie der Zelle nach Fig.3;

Fig.5

eine schematische Darstellung der Bindung einer Farbzelle mit einem dunkelroten Farbeindruck;

Fig.5a

eine schematische Darstellung der Bindung einer aus Schussfäden mit sechs Farben gebildeten Farbzelle mit einem dunkelroten Farbeindruck;

Fig.6

einen Schnitt entlang der Kettlinie der Zelle nach Fig.5;

Fig.7

eine Darstellung des kleinsten Bindungsrapport für eine aus Schussfäden mit vier Farben gebildeten Farbzelle mit einem hellroten Farbeindruck;

Fig.7a

eine Darstellung des kleinsten Bindungsrapport für eine aus Schussfäden mit sechs Farben gebildeten Farbzelle mit einem hellroten Farbeindruck;

Fig.8

ein Bindungsrapport für eine aus Schussfäden mit vier Farben gebildeten Farbzelle mit einem hellroten Farbeindruck und mit einem dunkelroten Farbeindruck;

Fig.8a

ein Bindungsrapport für eine aus Schussfäden mit sechs Farben gebildeten Farbzelle mit einem hellroten Farbeindruck und mit einem dunkelroten Farbeindruck;

Fig.9

eine Ansicht auf die Vorderseite eines Gewebeabschnittes;

Fig.10

Schnitte entlang einer Kettfadenlinie mit unterschiedlichen Abbindungen der Schussfäden;

Fig.11a/b

eine codierte Farbskala der mit Schussfäden in vier Farben erzeugbaren Farben;

Fig.12a/b

eine codierte Farbskala der mit Schussfäden in sechs Farben erzeugbaren Farben;

Fig.13

eine Liste der Farbeindrücke der mit Schussfäden in vier Farben erzeugbaren Farben und

Fig.14

eine Liste der Farbeindrücke der mit Schussfäden in sechs Farben erzeugbaren Farben.

Show it:

Fig.1

A cross section through a fabric prepared by a known method;

Fig.2

a legend of the symbols used in the following figures;

Figure 3

a schematic representation of the binding of a formed from weft threads with four colors color cell with a bright red color impression;

3a

a schematic representation of the binding of a formed from weft yarns with six colors ink cell with a bright red color impression;

Figure 4

a section along the warp line of the cell Figure 3 ;

Figure 5

a schematic representation of the binding of a color cell with a dark red color impression;

5a

a schematic representation of the binding of a formed from weft threads with six colors color cell with a dark red color impression;

Figure 6

a section along the warp line of the cell Figure 5 ;

Figure 7

a representation of the smallest binding repeat for a color cell formed from weft threads with four colors with a bright red color impression;

7a

a representation of the smallest binding repeat for a formed from weft yarns with six colors color cell with a bright red color impression;

Figure 8

a binding repeat for a color cell formed from weft threads with four colors with a bright red color impression and with a dark red color impression;

Figure 8a

a binding repeat for a formed from weft yarns with six colors color cell with a bright red color impression and with a dark red color impression;

Figure 9

a view of the front of a tissue section;

Figure 10

Sections along a Kettfadenlinie with different bindings of the weft threads;

11A / b

an encoded color gamut of colors producible with weft threads in four colors;

Figures 12a / b

an encoded color gamut of colors producible with weft threads in six colors;

Figure 13

a list of the color impressions of the colors producible with weft threads in four colors and

Figure 14

a list of the color impressions of colors producible with weft threads in six colors.

As the Fig. 2 The following symbols or synonyms are used to identify the warp threads and weft threads. For a white warp, the symbol W and a delimited white area are used, and for a black warp, the symbol BL and a delineated shaded area are used. For a red weft, the symbol becomes R and a cross hatch, for a green weft, the symbol G and a left-inclined hatching, for a blue weft, the symbol B and one and a right-angled hatching, for a yellow weft thread Symbol Y and a vertical hatching for a black weft yarn use the symbol BL and a horizontal hatching and for a white weft the symbol W and a hatching with circles. In the figures, the warp threads extend in vertical direction and the weft threads in the horizontal direction or perpendicular to the figure sheet.

It will be on the FIGS. 3 to 6 Referenced. These figures show a warp line with a black or white warp thread and four weft threads.

With the method in question, a red weft thread R is entered at low warp threads, then the white warp thread is lifted into the high compartment and subsequently a green G, a blue B and a yellow Y weft thread are entered, so that together with the white Warp a constant cell is formed, whereby the white warp thread covers and binds the green, blue and yellow weft threads ( 3 and 4 ). If a binding with the warp thread, a color cell is formed with a color impression, which is produced by the exposed red weft yarn and the white warp thread and appears bright red on the display side. As the FIGS. 5 and 6 show, in these methods also provided a red weft thread R in low-lying warp threads, then to lift the black warp thread in the high shed and subsequently enter a green G, a blue B and a yellow Y weft thread, so that together with the black warp thread a constant cell is formed with the black warp yarn floating over and covering the green, blue and yellow weft yarns. When tied with the warp, a color cell is formed with a color impression created by the exposed red weft yarn and the black warp yarn and appearing dark red on the face side.

The method is performed on the basis of binding reports. The Fig. 7 shows an example of a smallest binding repeat with a float length of the weft thread over a warp thread corresponding to the taffeta. The smallest Binding repeat comprises two adjacent weft and two successive lying in the warp direction cells. The Fig. 7 shows an example of a smallest binding repeat. The weave repeat comprises a first cell in warp line 1 Fig. 3 and in the warp direction, a second cell having an upper white warp thread which covers and binds the weft threads red R, green G, blue B and yellow Y, and in the second warp thread line a second cell with an overhead white warp thread containing the weft threads red R, green G, blue B and yellow Y covers and binds in the warp direction following a first cell Fig. 3 , This binding repeat produces a bright red color impression. It is obvious to the person skilled in the art that identical and different binding repeats can be combined and multiplied as desired.

It will be on the Fig. 8 Referenced. The Fig. 8 shows two binding repeats I, II with a float length of the weft thread over three warp threads corresponding to the (3-1) body. The Rapport I is for a bright red color impression and the Rapport II for a dark red color impression. Below, only the Rapport I will be discussed. The repeat comprises four warp lines 1 to 4 and sixteen weft threads. After this repeat, a red weft thread R is introduced in a first step with low-lying warp threads of the warp thread lines 1 to 3 and lifted into the high-bay white warp thread in the warp thread line 4. In a second step, the white warp threads of the warp lines 1 to 3 are lifted into the high compartment. In a third step, a green weft yarn G, a blue weft yarn B and a yellow weft yarn Y are successively entered into the compartment. In a fourth step is raised in the Hochfach warp in the warp line 1 and low-lying warp threads in the warp lines 2 to 4 a red weft thread R entered. In a fifth step, the white warp threads of the warp lines 2 to 4 are lifted into the high compartment. In a sixth step, a green weft yarn G, a blue weft yarn B and a yellow weft yarn Y are entered into the compartment. In a seventh step, a red weft thread R is inserted in warp line 2 raised in the high-level warp thread and in the warp thread lines 1, 3 and 4 in the case of low-lying warp threads. In an eighth step, the white warp threads of the

Warp lines 1, 3 and 4 lifted into the high compartment. In a ninth step, a green weft yarn G, a blue weft yarn B and a yellow weft yarn Y are entered in the tray. In a tenth step, a red weft thread R is inserted in the warp threadline 3 in the high-level warp yarn and in the warp yarns 1, 2 and 4 in the case of low-lying warp yarns. In an eleventh step, the white warp threads of the warp lines 1, 2 and 4 are lifted into the high compartment. In a twelfth step, a green weft yarn G, a blue weft yarn B and a yellow weft yarn Y are inserted into the tray. The Rapport II differs only in that instead of the white weft threads in each case the black weft threads are lifted into the high compartment.

The Fig. 9 shows the front of a fabric section, which was woven after the rapport described above.

The Fig. 10 shows sections along a Kettfadenlinie with different bindings of the weft threads. The illustrations are self-explanatory and are therefore not described.

With the method according to the invention, in the cells, by appropriate binding of the weft threads with a white warp thread ( 11A ) or a black warp thread ( Fig. 11b ) twenty-eight color impressions are generated. These color impressions are provided with a code. The Figures 11a and 11b show a coded color scale.

These colors result in a float length of the weft thread over a warp thread. The float length of the weft can extend over a total of up to seven warp lines. The intensity of the color impression is determined by the float length and the color of the warp threads, i. with two warp threads there are twenty-eight intensities. This results in a total of one hundred and ninety-six color impressions, namely from the product number of colors multiplied by the number of intensities and the number of warp threads (14 x 7 x 2 = 196).

In another embodiment of the method, six weft threads are entered in the colors red R, green G, blue B, yellow Y, black BL and white W. This has the advantage that the number of color impressions is further increased.

The FIGS. 12a and 12b show a coded color scale.

Claims (17)

1. Method for the manufacture of colored, patterned areal textile structures using weaving technology with warp threads which form a shed and weft threads, characterized in that at least four weft threads of different base color are inserted in a specific constant sequence such that a constant cell is formed with at least one warp thread and in that the weft threads can be tied in the cell with the warp thread such that a color cell with a specific color impression is produced.
2. Method in accordance with claim 1, characterized in that the weft threads are used in a selectable sequence.
3. Method in accordance with claim 1 or 2, characterized in that weft threads are used in the base colors red (R) , green (G), blue (B), and yellow (Y).
4. Method in accordance with claim 1, characterized in that the weft threads are used in the sequence red (R), green (G), blue (B), and yellow (Y).
5. Method in accordance with one of the claim 2 to 4, characterized in that in combination with a warp thread of a specific color up to 14 color impressions are produced in the cell.
6. Method in accordance with claim 1 or 2, characterized in that six weft threads of different base color are inserted.
7. Method in accordance with claim 1 or 6, characterized in that a warp thread pair in different colors is used, with each warp thread being selectively used for the tying in.
8. Method in accordance with claim 5 or 7, characterized in that a warp thread pair is used in the colors black and white and in that a warp thread is selected for the weaving of the cell such that the color intensity of the cell is changed.
9. Method in accordance with claim 5 or 7, characterized in that, on the changing of the shed, the warp thread pair is moved along a warp thread line.
10. Method in accordance with one of the preceding claims, characterized in that a first weave repeat is produced which includes two cells lying alongside one another in the weft direction and two cells lying after one another in the warp direction.
11. Method in accordance with one of the preceding claims, characterized in that a plurality of cells are combined into a second weave repeat such that special weft thread float lengths are produced and a desired color intensity is achieved.
12. Method in accordance with claim 11, characterized in that the weft thread float length is restricted to twenty warp threads.
13. Method in accordance with one of the preceding claims, characterized in that a constant weft density is provided in the color cell.
14. Method in accordance with one of the preceding claims, characterized in that a different weft density is provided for at least one weft thread of a color cell.
15. Method in accordance with claim 1,5,6,7,8,9,10,11 or 12, characterized in that a code is specified for each color impression and in that the codes are stored in a color scale.
16. System for carrying out the method in accordance with one of the preceding claims, characterized by a loom with a Jacquard machine and/or a CAD system.
17. Textiles manufactured in accordance with the method, characterized by a colored patterned fabric for labels, tie material, dress material, upholstery material and the like.

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