JPH0735117B2 - Printing method and automatic screen printing machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is mainly applied to pile fabrics,
The present invention relates to a printing method used for a raised fabric, and an automatic screen printing machine capable of suitably carrying out the printing method.

[0002]

2. Description of the Related Art A conventional automatic screen printing machine will be described with reference to FIGS. 5 and 6.

As shown in the figure, the cloth K is fixed on the endless belt 100. Endless belt 10
When 0 is moved by a driving means (not shown) such as a motor, the cloth K runs along with it. Above the endless belt 100, a plurality of flat screen printing units 101 are arranged side by side at predetermined intervals in the longitudinal direction. A screen 102 having a desired design is stretched below the printing unit 101.

Reference numeral 103 is a roller squeegee, which is provided in the textile printing unit 101 so that its axial center direction coincides with the traveling direction of the endless belt 100.
The roller squeegee 103 is an endless belt 100.
The fabric K arranged above is pressed from above and reciprocally runs in the width direction of the endless belt 100.

Further, the endless belt 1 is provided with the printing units 101 as many as the kinds of colors to be dyed.
The multi-color printing is performed on the cloth K by repeating the intermittent driving such as the stop of 00, the lowering of the printing unit 101, the reciprocating movement of the roller squeegee 103, the rising of the printing unit 103, the movement of the endless belt 100, the stop of the endless belt 100. You can

However, in such a screen printing machine, the size in the longitudinal direction is limited due to space problems, and the number of printing units 101 arranged in parallel above the endless belt 100 is at most 8 to 10. 9 is the limit. However, even with multicolor printing, dyeing with 10 or more colors was very difficult.

The present invention has been made in view of the above circumstances, and an object of the present invention is to perform a printing method capable of easily performing multicolor printing of 10 colors or more, and to preferably carry out the method. The company is offering automatic screen printing machine.

[0008]

A printing method according to a first aspect of the present invention is a printing method for performing multicolor printing on a cloth by a screen printing machine, wherein the cloth is dyed by a predetermined printing step. After that, the dye in a predetermined portion of the dyed portion is dissolved to lighten the predetermined portion.

The automatic screen printing machine of the second invention is an automatic screen printing machine comprising a plurality of flat screen plate type printing units arranged side by side in the longitudinal direction, wherein the rearmost part of the automatic screen printing machine is: A dye dissolving unit for printing a processed paste capable of dissolving the dye is provided so that a predetermined portion of the dyed portion of the cloth sent can be automatically lightened.

[0010]

In the textile printing method of the first invention, the dye in a predetermined portion of the dyed portion is dissolved, and the basic color of the predetermined portion is made lighter (for example, if the basic color is red, it is pink; if blue, it is violet). It is possible to blur and the shaded part can be provided with a shade based on the color of the part. For example, in the case where the dyed portion is composed of multicolor printing of 6 colors, the total of the 6 basic colors and the 6 colors obtained by dimming the basic colors by using the printing method of the present invention. Twelve different colors can be applied to the fabric.

The above-mentioned printing method can be suitably used by the automatic screen printing machine of the second invention. That is, since the dye dissolving unit is provided at the rearmost portion of the automatic screen printing machine, it is possible to automatically lighten a predetermined portion of the dyed portion of the cloth that has been dyed and is sent.

As a result, if the cloth reaches the dye-dissolving unit through, for example, eight printing steps, that is, multicolor printing of eight colors is performed, the color of the cloth finally applied is determined. There are 16 colors. Conventionally, if 16-color multi-color printing is to be performed on a fabric, 16 printing units are required, and such multi-color printing is practically impossible, but if the automatic screen printing machine is used, It can be done easily.

As a processing paste (hereinafter referred to as "special processing paste") capable of dissolving a dye to lighten a dyed portion, sodium phenolsulfonate / dihydroxydiphenylsulfone / formaldehyde condensation shown in the following [Chemical Formula 1] is shown. Or a mixture of an aromatic polymer compound such as sodium naphthalenesulfonate / formaldehyde condensate shown in [Chemical Formula 2] with a printing paste, for example, a vegetable paste such as guar gum.

[0014]

[Chemical 1]

[0015]

[Chemical 2]

In the formula, m, n and p are integers of 1 or more.

An example of the method of adjusting the specially-processed glue will be described below, but the method is not limited to this.

Drug (containing 40 to 60% by weight of the aromatic polymer compound represented by the above formula [Chemical Formula 1] or [Chemical Formula 2], 2 to 6% by weight of guar gum, and water) Original paste B (urea 1.5) ~ 3.5% by weight, guar gum 6 ~
8% by weight, anti-reduction agent 0.5 to 1.5% by weight, and water) 15 to 35 parts by weight of the above-mentioned chemical agent to 50 parts by weight of water,
15 to 35 parts by weight of the original paste B are added and mixed uniformly to adjust the specially processed paste.

The reducing agent is not particularly limited, and examples thereof include BS powder (manufactured by Hamamoto Chemical Co., Ltd.) and sodium metanitrobenzenesulfonate.

As the color paste used in the printing unit, that is, for dyeing the cloth, conventionally known ones can be used. Usually, the color paste comprises a dye, a thickening agent, a penetrating agent, an acid, a sizing agent, urea, an acid and a reducing agent mixed uniformly with water.

As the dye, Thai acrylic dye (manufactured by Mitsubishi Kasei Co., Ltd.), Sumi acrylic dye (Sumitomo Chemical Co., Ltd.)
Astrazone dye (manufactured by Bayer Co., Ltd.), Basacryl dye (manufactured by BASF Co., Ltd.), Catillon dye (manufactured by Hodogaya Chemical Co., Ltd.), and the like, but also others. Can be used.

Carrier CAP (manufactured by BIC Co., Ltd.) is used as the deep-dyeing agent, and Celepol PA500 is used as the penetrating agent.
(Manufactured by Sanyo Kasei Co., Ltd.), but the acid is acetic acid, Nicole F
PK (manufactured by Sumitomo Kasei Co., Ltd.) can be mentioned, but other materials can also be used.

If desired, a defoaming agent, an alkaline agent or the like may be added to the specially processed paste or color paste.

The material for the dough is not particularly limited,
Examples include polyester and acrylic fibers.

[0025]

EXAMPLES An example of the present invention will be described below.

Preparation agent for specially processed glue (500 kg of sodium phenolsulfonate / dihydroxydiphenylsulfone / formaldehyde condensate shown in the following [Chemical Formula 3], and 40 kg of guar gum
To which water was added to make the total 1,000 kg)

[0027]

[Chemical 3]

M and n are integers of 1 or more.

Original paste B (25 kg urea, 75 guar gum)
kg, and BS powder (manufactured by Hamamoto Chemical Co., Ltd.) 10 kg
Water was added to make the total amount 1,000 kg.) The above and were mixed with water to obtain a specially-processed glue A (a chemical agent of 30% by weight, an original paste B of 20% by weight, a water of 50%
weight%).

Using the specially processed paste A adjusted as described above, printing was carried out by an automatic flat screen printing machine. The description will be given below based on the drawings.

As shown in FIGS. 1 and 2, in the automatic flat screen printing machine A (hereinafter referred to as "printing machine A"), the feed roller 10 is provided in front of (in the figure, left side) and behind the printing machine A. It is distributed. Reference numeral 12 is an endless belt, which is stretched around the front and rear feed rollers 10. On this endless belt 12, a long pile cloth PK which will eventually become a blanket is fixed and fixed. The pile fabric PK is an acrylic cut pile fabric.

Reference numeral 14 is a printing unit for printing a blue glue paste which is provided for dyeing the pile fabric PK in blue. Further, a printing unit 1 for red paste printing is provided behind the printing unit 14 for dyeing red.
6 are arranged. Further, printing units 18, 20, 22 for dyeing yellow, green, and brown are arranged in order.

At the rearmost portion on the endless belt 12, a printing unit 2 for printing the above-mentioned specially-processed glue A is printed.
4 (hereinafter, referred to as "dye dissolving unit 24") are arranged. The printing units 14, 16, ... 22 and the dye dissolving unit 24 may be structurally the same, although their purposes are different.

Each of the above printing units 14, 16, ... 22
One end of the dye dissolving unit 24 is the printing unit 1
4, 16, ..., 22 and the hydraulic cylinder 3 attached to the U-shaped frame body 28 constituting the dye dissolving unit 24.
It is provided so that it can be moved up and down by 0. In addition, each of the printing units 14, 16, ... 22 and the dye dissolving unit 24
A screen 32 having a stencil pattern is stretched on the lower side. Further, on the screen 32, a roller squeegee 34 is provided in the frame body 28 so that the axial center direction coincides with the longitudinal direction of the endless belt 12.
The roller squeegee 34 is configured to reciprocate in the width direction of the endless belt 12 while pressing the cloth PK arranged on the endless belt 12 from above.

When the front feed roller 10 is rotated by driving a motor (not shown), the endless belt 1
2 runs. Along with this, the pile fabric PK
Also runs together, and this fabric PK has multiple printing units 1
It is supplied to the multi-color printing area with 4, 16, ... 22.
The arrow indicates the traveling direction of the pile fabric PK.

When the pile fabric PK is conveyed to the multi-color printing area, the printing units 14 and 1 are driven by the hydraulic cylinder 30.
6, ..., 22 and the dye dissolving unit 24 are raised, and in this state, the pile cloth PK moves by a constant repeat length by the endless belt 12.

After the endless belt 12 is stopped, the printing units 14, 16, ... 22 descend and the screen 32 comes into contact with the pile fabric PK. In this state, the roller squeegee 34 located on the screen 32 travels back and forth in the width direction of the endless belt 12, and the color paste applied to the roller squeegee 34 is dyed to the pile of the pile cloth PK. . That is, a color pattern corresponding to the stencil pattern of each screen 32 is applied to the pile fabric PK. It is possible to perform multicolor printing on the pile fabric PK by repeating the intermittent process as described above under a series of automation.

The pile fabric PK dyed in multiple colors in this way moves below the dye dissolving unit 24 provided at the rearmost portion. After that, the printing units 14, 16, ...
As in the case of 22, the specially-processed glue A is printed on the pile fabric PK.

After that, the pile fabric PK is finally finished through processes such as steam coloring, water washing, soaping, and drying. The pile fabric PK that has undergone all the steps has an original basic color that has not been processed by the dye dissolving unit 24,
It was processed by the dye dissolving unit 24, and the basic color was lightened, and a shade with a blurred color was observed.

The mechanism of forming the shade will be briefly described below. In the printing process, as shown in FIG. 3, the pile portion P of the pile fabric PK is dyed. Then, by printing the specially-processed glue A in the dye dissolving unit 24, as shown in FIG. 4, the dye dyed in the pile portion P is dissolved, and this portion is lightened. In the figure, the four pile parts P on the left are the parts in which the original basic color remains, and the other pile parts P are the parts that are lightened. Looking at this state from the surface of the pile fabric PK, as described above,
The shade of the dyed basic color portion and the color portion processed by the dye dissolving unit 24 and lightened from the basic color was observed, and the pile fabric PK could be blurred.

That is, it is possible to dye a total of 10 colors of blue, red, yellow, green, and brown, and light colors (light blue, pink, light yellow, light green, light brown) based on these colors. Became. In the conventional method, 10 dyeing units were required to dye 10 colors, but in the present invention, 5 dyeing units and 1 dyeing unit are required.
Only one dye dissolving unit is required.

Similar results were obtained by using a sodium naphthalenesulfonate / formaldehyde condensate shown in the following [Chemical formula 4] instead of using the aromatic polymer compound shown in the [Chemical formula 3].

[0043]

[Chemical 4]

P is an integer of 1 or more.

It has been attempted to use a conventionally known decolorizing agent or bleaching agent, specifically, bleaching powder or sodium chlorite, to lighten the desired portion of the dyed portion. With the agent and the like, the color of the dyed part was completely removed, and the pile fabric PK could not be multicolored.

In carrying out the printing method of the present invention, an automatic flat screen printing machine was used in this example, but the present invention is not limited to this, and a hand screen printing machine, an automatic rotary screen printing machine, an automatic type or a semi-automatic running type is used. A screen printing machine or the like can also be used.

In this embodiment, five printing units 14,
Although 16 ... 22 are provided, the present invention is not limited to this, and it is also possible to provide four or less or other number of printing units. Further, even in the case of the dye dissolving unit 24, only one piece is provided in the present embodiment, but the present invention is not limited to this, and two kinds of special processing glues having different degrees of lightening with respect to the basic color are prepared and two pieces are prepared. The dye dissolving units may be arranged in parallel. In this case, if a printing unit of 5 colors is provided, for example, it is possible to finally perform multicolor printing, which is impossible to obtain by conventional methods, such as dyeing the pile fabric PK into 15 kinds of colors.

In carrying out the printing method of the present invention, no special device or machine is required at all, and a conventionally used printing device or printing machine can be used.

[0049]

According to the first and second inventions, it has been difficult until now to lighten a desired portion of a dyed portion.
Multicolor printing with more than one type of color is easy.

[Brief description of drawings]

FIG. 1 is a schematic side view of a textile printing machine showing an embodiment of the present invention.

FIG. 2 is a plan view of the previous figure.

FIG. 3 is a side view showing a dyed pile portion.

FIG. 4 is a side view showing a state in which a dyed pile portion is lightened.

FIG. 5 is a side view of a conventional automatic screen printing machine.

FIG. 6 is a plan view of the previous figure.

[Explanation of symbols]

 14, 16, 18, 20, 22 ... Printing unit 24 ... Dye dissolving unit A ... Printing machine P ... Pile part PK ... Pile fabric

Claims (2)

[Claims] 1. A printing method for performing multicolor printing on a cloth by a screen printing machine, wherein the cloth is dyed through a predetermined printing step, and then a dye at a predetermined portion of a dyed portion is dissolved. A textile printing method, characterized in that the predetermined portion is lightened with a color. 2. An automatic screen printing machine comprising a plurality of flat screen printing units arranged side by side in the longitudinal direction, wherein a processing paste capable of dissolving a dye is printed at the end of the automatic screen printing machine. An automatic screen printing machine characterized in that a dye-dissolving unit for printing is provided so that a predetermined portion of a dyed portion of a fabric that is sent can be automatically lightened.