JPS643977B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a raw material for weft yarns with a shaded step-graded pattern, and more specifically, a method for revealing a pattern of horizontal stripes, that is, a shaded step-graded pattern in the warp direction, on a fabric. This article relates to a method for producing a weft fabric. The obtained original fabric is slit in the warp direction and provided as weft yarns for pattern appearance.

The yarn obtained from the original fabric with such a shading step-graded pattern can be obtained using the sequential drawing technique, that is, the original fabric with the desired pattern is slit in the warp direction, and the yarn obtained is inserted into the weft in a predetermined order. In this way, similar to the method of reproducing the pattern originally appearing on the original fabric on the fabric, the pattern can appear on the fabric as close to the image with almost no distortion. Therefore, for the original fabric with this type of shaded gradient pattern, a vertically elongated base material is used, and the shaded gradient pattern is applied to the vertically elongated base material, and the pattern of the shaded gradient pattern that appears on the fabric is The direction length, that is, a long range corresponding to the length of one pattern of the shaded step blur pattern, for example, the weaving width is approximately 333 mm.
mm woven fabric (sash), and the shaded step pattern on the woven fabric is approximately 7 cm long in the warp direction of the fabric.
It is convenient if it is applied over a distance of 100 meters. Since the resulting yarn is long and follows the vertical length of the original fabric, it is inserted in the form of a bobbin yarn using a mechanical force such as a shuttle, and a pattern of horizontal stripes in shades of light and shade is created on the fabric with high productivity. Because you will get it.

The shading pattern of horizontal stripes that appears on the fabric according to the above specifications is an accumulation of adjacent patterns (strictly speaking, pattern elements) of threads obtained from the original fabric and inserted into the weft. Therefore, the original fabric for the weft yarn with the horizontally striped shading pattern must be one in which the shading gradation of the pattern is shifted along the length of the original fabric, that is, in the warp direction. This means that unless the gradient gradient gradation of the warp direction transition of the pattern of the original fabric is not properly applied, the gradation gradient pattern of horizontal stripes appearing on the fabric will not have a desirable texture due to the degree of gradation.

Conventional technology and its problems Until now, a method for producing a weft fabric with a shaded and shaded pattern that can be effectively applied to the warp direction transition, and which can be realized in mass production, has not yet been developed. It has not been. In view of this point, it has not yet been possible to industrially realize the above-mentioned characteristics of a weft fabric with a shaded step pattern.

The object of the present invention is to improve the pattern-revealing weft fabric of the type described at the beginning of the previous section, even when the gradient of the pattern in the warp direction is blurred over a long range as described above. It is an object of the present invention to provide a manufacturing method that can be applied effectively and that can be mass-produced.

Means for Solving the Problems The above objects of the present invention are achieved by a manufacturing method having the following configuration.

A method for producing a weft material for producing a pattern of horizontal stripes in gradations of shading on a fabric, in which a printing roll or a rotary screen placed at a fixed position is used as a substrate strip for the material fabric. The ink is colored by passing the ink through the ink, and as inking means for the printing roll or rotary screen, the means is provided with a means for supplying ink of three types of shading: light, medium, and dark, or at least two types of light and dark. When coloring, the three or two types of ink supply means are switched and operated as the printing roll or rotary screen rotates, and the density is changed from light to medium to dark. Production of raw fabric for weft yarns with a shaded and shaded stepped pattern characterized by coloring in such a manner that the color changes from light to light, or from light to dark and then back to light, or vice versa. Law.

Function In the present invention, since the base material strip is given a gradient gradient pattern according to the above-mentioned specific specifications, when the rotation amount of the printing roll or rotary screen reaches a predetermined amount, the ink supplying means of each different density is turned off. By switching the operation to the one with the required density, it is possible to obtain an original fabric with a preferable gradation gradation mode in which the gradation gradation of the pattern of the base material strip in the warp direction becomes gradually darker or lighter. . That is, even if the gradient gradient of the longitudinal transition of the pattern extends over a long range as described above, it can be effectively applied to the substrate strip. Furthermore, the transition between shading and gradation can be done by switching the operation of the ink supply means without having to use the printing roll or rotary screen separately, and switching the operation can be easily done by controlling the valve. can be done. Therefore, it is possible to realize the transition between shading and shading in a mass-produced manner.

Effects of the Invention As described above, according to the present invention, with respect to a weft material for making a pattern of horizontal stripes in gradations and gradations appear on a fabric, the gradation and gradation pattern of the warp direction transition is made visible on the fabric. This can be successfully applied even over a long range commensurate with the longitudinal length of the shaded and shaded pattern to be produced, and this has the effect that it can be realized in mass production.

Embodiments Next, embodiments of the present invention will be described with reference to the accompanying drawings.

An example of a shaded step pattern coating apparatus used in carrying out the method of the present invention is shown in FIG. In Fig. 1, 1 is a printing roll of the so-called solid coating type, 2 is a pressure roll that can be moved upward, 3, 3 is a roll for sending out the raw material base material, and 4 is a raw material coated with a gradient gradient pattern. The take-up roll 5 is a printing ink tab as an example of inking means for the printing roll 1, into which the bottom of the printing roll 1 is immersed. 6 is a tank for printing ink with a light density; 7 is a tank for printing ink of the same color and intermediate density as the printing ink in the tank 6; 8 is a tank for printing ink of the same color and high density; the tank 6 is a pump 9; tube 1
0 and printing ink supply pipe 12 via solenoid valve 11
The tank 7 is connected to the printing ink supply pipe 12 through a pump 13, a pipe 14 and a solenoid valve 15, and the tank 8 is connected to the printing ink supply pipe 12 through a pump 16, a pipe 17 and a solenoid valve 18 to supply printing ink. The tube 12 communicates with the tab 5. The pump 9 and pipe 10 are a specific example of an ink supply means for ink with a light concentration, and the pump 13 and pipe 1
4 is a specific example of an ink supply means for medium density ink, and the pump 16 and tube 17 are specific examples of ink supply means for dark density ink.

A solvent tank 19 is connected to the tanks 6, 7, and 8 through a pump 20, branch pipes 21, 22, 23, and solenoid valves 24, 25, and 26, respectively. Reference numeral 27 denotes a relief pipe branched to the secondary side of the pump 20, and has a throttle valve 28. 29 is tank 6, 7,
A viscosity revealer, which is provided in each of 8 and reveals the viscosity (and thus the concentration) of the printing ink in the tank by a known method (based on the rotational resistance of the rotor rotating in the ink in the tank). , this is electrically connected to the solenoid valve 24 in the tank 6, the solenoid valve 25 in the tank 7, and the solenoid valve 26 in the tank 8, and the internal printing of the tanks 6, 7, and 8. Based on the development of the viscosity of the ink, the solenoid valves 24, 25, 26 are opened and closed, and the solvent is supplied from the solvent tank 19 so that the viscosity of the printing ink in the tanks 6, 7, 8 is maintained at a required constant value. The amount is automatically controlled, thereby maintaining the printing ink in the tanks 6, 7, 8 at a constant concentration. 30 is a doctor. 3
1 is a relief pipe branched on the secondary side of the pumps 9, 13, 16, and 32 is a throttle valve thereof.

For the multi-color shade and gradation gradation pattern revealing weft fabric base material, there is one coating device for each color, for example, if there are three colors, there are three such coating devices. Applicable. These coating devices may be of the same construction except that the color of the printing ink used is different.

Coating of a multicolor shaded step pattern using the illustrated apparatus is as follows.

A long piece of paper, plastic film, etc.
Strip S slit into warps to obtain yarn
[That is, the original fabric base material] is sent from the delivery rolls 3, 3 to the printing rotary 1 and the pressure roll 2, coated with printing ink of the desired color, and the coated original fabric a' is transferred to the winding roll 4. I'm going to wind it up. Delivery roll 3,
The supply amount of the strip S in step 3 is set to match the progress of printing by the printing roll 1, and the winding amount of the winding roll 4 is set to match the amount of feed of the web a' from the printing roll 1.

In the above coating, the printing ink is supplied to the tab 5 through the printing ink supply pipe 12 by first opening only the solenoid valve 11 [or 18] of the printing ink supply system, and then supplying the printing ink to the tank 6 of light density printing ink [or dark density printing ink]. If the required length of the strip S is coated with printing ink of the same concentration, the electromagnetic valve 11 [or 1
8], open the solenoid valve 15, and switch to supply of printing ink from the medium concentration tank 7.

The printing ink with an intermediate density sent from the tank 7 to the tab 5 mixes with the previous printing ink of a lighter (or darker) density remaining in the tab 5, and as the supply progresses, the printing ink gradually shifts to an intermediate density. , the concentration eventually becomes intermediate.

When the printing ink of intermediate density has been applied to the strip S for the required length, the solenoid valve 15 is closed;
The solenoid valve 18 (or 11) is opened to switch to supplying printing ink from the concentrated (or light) tank 8 (or 6). Here, as the coating of the printing ink of the strip S progresses, it gradually shifts from an intermediate density to a darker (or lighter) density,
It eventually reaches a predetermined density (or lightness).

Determination of the above-mentioned density transition time, in other words, regulation of the length over which the printing ink of each density is coated on the strip S, is determined by an appropriate means, for example, by controlling the rotational speed of the printing roll 1, that is, the amount of mechanical displacement, electrically or It is electronically quantized (generally can be converted into a pulse) and transmitted from a transmitter to a counter, and based on the predetermined count, the supply and stop of printing ink of each density are controlled. You can do it in this way.

In this way, a stepped gradation pattern in which the density of a certain color is light, medium, and dark is applied to the strip S. The coating of this step-graded pattern is applied over a span a corresponding to the length in the warp direction of the shaded step-graded pattern of one color appearing on the fabric, that is, a range corresponding to the length of one pattern of the shaded step-graded pattern. (See Figure 2).
For example, in the case of a woven fabric (sash) with a weaving width of approximately 333 mm, if the shaded step pattern on the woven fabric has a length of about 7 cm in the warp direction of the fabric, the range of span a (Fig. ) The length is approximately 100m.

When a gradient gradient pattern of a certain color is applied to one span a of the strip S, the pressure roll 2 is moved upward to float the strip S from the printing roll 2, and while it is in the floating state, It passes through the printing roll 1 for a length equivalent to the required number of spans a (in the case of a three-color pattern, the length equivalent to two spans). During this time, the strip S is not coated with printing ink and remains as a blank area. The printing roll 1 may continue to rotate. The transition length of this blank area may be regulated in the same manner as the above-mentioned regulation of the coating length of each density printing ink.

When the progress of the strip S without coating reaches the required length, the pressure roll 2 is lowered and the strip S is brought into pressure contact with the printing roll 1 to form a gradient pattern of the same color as before. Resume coating. Thereafter, in the same manner, the same color shading step shading pattern is applied in multiple steps to every predetermined number of spans a.

The blank portion of the strip S is provided with a shading pattern of other colors. The construction of the gradation pattern of other colors is also the same as described above. This latter coating may be performed in parallel with the above-mentioned pre-coating, or may be performed subsequent to the completion of the pre-coating for the entire predetermined span a. In the case of the parallel method, each coating device is arranged at a fixed position side by side in the direction in which the strip S travels.

The embodiments described above have printing inks of light, medium, and
This is a case where three types of printing ink, one dark and one dark, are used, but if desired, two types of printing ink, light and dark, may be used, omitting the medium density one. In addition, the shading step pattern is not limited to the so-called solid coating, but other patterns such as a sand pattern can also be applied. A rotary screen method may be applied instead of the roll printing method for applying the shading pattern.

It is preferable to apply a gradient pattern of a predetermined color to the strip S on both the front and back sides. The relative positional alignment of the strips and the patterning means (printing roll or rotary screen) necessary for patterning both the front and back sides may be carried out in accordance with any suitable method known per se.

In the above manner, the desired weft material with a shaded and shaded pattern is obtained, for example, product A as shown in FIG. 2.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an example of a gradation pattern coating apparatus used in carrying out the method of the present invention, and FIG. 2 is a plan view showing an example of a product obtained by the method of the present invention. 1 is a printing roll, 2 is a pressure roll, 3 is a delivery roll, 4 is a winding roll, 5 is a printing ink tab, 6 is a tank for printing ink of light density, 7 is a tank for printing ink of medium density, 8 is a tank for printing ink of medium density. High concentration printing ink tank, 9, 13, 16, 20 are pumps, 11, 15, 18, 24, 25, 26 are solenoid valves, 12 is printing ink supply pipe, 27, 31 are relief pipes, 28, 32 is a throttle valve, S is a strip, A
is an example of a product produced by the method of the present invention.

Claims (1)

[Claims] 1. A method for producing a weft fabric for producing a pattern with horizontal stripes in gradations of shading on a fabric, in which a printing roll or rotary screen placed at a fixed position is used as a substrate strip for the fabric. This is colored by passing through the printing roll or rotary screen, and as an inking means for the printing roll or rotary screen, a means for supplying ink of three densities of light, medium and dark or at least two of light and dark densities is supplied to the means. During coloring, the three or two types of ink supply means are switched and operated as the printing roll or rotary screen rotates, and the density is changed from light to medium to dark. A raw fabric for weft yarns with a shaded and shaded step-graded pattern characterized by coloring in such a manner that the color changes from intermediate to light, from light to dark and back to light, or vice versa. Manufacturing method.