JPH01124644A - Production of pattern flat yarn - Google Patents

Abstract

PURPOSE: To provide a method for producing a flat yarn with patterns by providing printed patterns and pattern position-sensing marks on the obverse and reverse surfaces of a base body, sensing the marks by a pair of pattern position sensors and then controlling the register, thus symmetrically forming the surface patterns irrespective of the material and transparency of the base film. CONSTITUTION: This method comprises: printing desirable patterns 2 on the obverse and reverse sides of a base body 1 along with forming a pattern position-sensing mark 3 thereon; and disposing a pair of pattern position sensors 4 and 4 on each printing unit so as to sense the marks 3 and 3 at the same time when the patterns on both the sides coincide with each other. Each printing color defines the applicable mark 3, and the registration of the patterns 2 in the printing plan and between both the sides is conducted by sensing the mark 3 by the sensor 4 and then measuring the displacements of the obtained pulses so as to control the printer.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a method for producing flat yarn for textiles having a picture pattern, and in particular to a method for producing a flat thread for textiles having a picture pattern, in particular a flat thread made by cutting a flat foil with a symmetrical picture printed on both the front and back sides of a substrate. This invention relates to a method for manufacturing flat yarn.

<Prior art> As a conventional technology in this field,
There is something shown in the publication. This technology uses flat foil paper, etc., to leave a margin on both sides of a transparent base film, and then, when printing a pattern on one side, marks for positioning the pattern are placed in the margin of the base film. When a pattern is provided on the other side, the alignment marks are detected by passing through the transparent base film to perform registration, thereby matching the patterns on both the front and back sides.

<Problems to be Solved by the Invention> However, in the above-mentioned prior art, a transparent plastic film must be used as the base film, and other layers such as gold and silver flat base paper, paper, etc. must be used on the base film. Due to the convenience of laminating plastic films, etc.
In order to have mechanical suitability for the process, it is at least 15 μm, preferably 20 I! It is necessary to have a thickness of m or more.

In this case, the stiffness, texture, strength, etc. of the obtained flat yarn are basically affected by the base film, so that only a certain range of stiffness, etc. can be obtained.

In addition, the pattern registration between the front and back surfaces is performed by detecting alignment marks provided in the margins of the transparent base film, but when other layers laminated on the base film are thick, This creates a step between the surface on which the pattern is printed and the surface on which the mark is provided.
In some cases, marks were not printed well and were blurred, or not printed at all, making it impossible to register the pattern.

<Means for Solving the Problems> In view of the problems of the prior art, the present invention makes it possible to provide symmetrical patterns on the front and back sides regardless of the material and transparency of the base film. A pattern position detection mark is provided on a predetermined portion of both the front and back sides of the substrate at the same time as the pattern is printed, and the detection mark is connected to a pair of patterns that are set in advance so that when the front and back sides of the pattern match, each of the front and back sides is simultaneously detected. Patterned flat thread is made by cutting a flat foil obtained by printing a predetermined pattern to the required width while detecting it with a position detection sensor and controlling the register according to the displacement of the detected detection mark. This is a manufacturing method.

Function> In the present invention, the picture position detection mark provided on both the front and back surfaces is provided to detect the misregistration of the picture of each color on each side and the misregistration of the picture between the front and back sides. This is performed by a pattern position detection sensor that is set in advance to simultaneously detect marks on both the front and back sides. The positions of the marks detected as six luths by each sensor are compared with one as a reference, and the register is controlled according to the amount of displacement.

<Example> Next, the present invention will be further explained with reference to the drawings.

FIG. 1 is an explanatory diagram showing one embodiment of the present invention.

The substrate (1) used in the present invention may be paper, plastic film, metal foil, or paper or plastic film coated with metal vapor deposition or resin coating, and has the stiffness, texture, and strength required for flat foil. etc., and #rII of these materials is selected as appropriate according to the physical properties of -Ill! ! ! It is the body.

A desired pattern (2) is printed on the front and back surfaces of the base (1), and at the same time, a pattern position detection mark (3) is provided. The mark (3) is provided for each color to be printed, and the registration of the pattern (2) within the printed surface and between the front and back surfaces is achieved by detecting the mark (3) with a pattern position detection sensor (4), This is done by controlling the printing device by measuring the displacement of the obtained pulses.

The pattern position detection sensor (4) uses an optical sensor capable of detecting the marks (3) provided on the front and back surfaces of the substrate (1), and detects the marks (3) on the front and back surfaces for each color printing unit of the printing device. establish. Here, a pair of sensors (4) provided in each printing unit detect the pattern (2) on the front and back sides.
It must be installed so that when the positions of the mark (3) match, the mark (3) is detected at the same time.

In addition, if the mark (3) overlaps the pattern (2) in the flow direction, a magnetaink switch may be used in conjunction with the sensor (4) to detect only the mark (3). It is possible to do so.

The printing of the pattern (2) is done by gravure printing method,
After printing on one of the front and back sides first, the substrate (1) may be reversed and printed on the other side, or both the front and back sides may be printed at the same time. In either case, the mark (3) on the front and back is detected as a pulse by the sensor (4), and according to the displacement of the pulse, the pattern (2) is changed by the registration adjustment mechanism of the printing device.
The registration is performed.

The register adjustment mechanism transmits the voltage sent out according to the pulse displacement to the register motor via, for example, a relay switch, and controls the base body (1) between each plate cylinder (5).
) to drive the swing roller (6) to adjust the length of the plate cylinder (5), or to adjust the rotational speed of the plate cylinder (5).

The flat foil obtained in the above manner can be
For example, it is cut by a micro slitter and wound into a flat thread onto a winding beam.

Next, an example of creating a flat yarn according to the present invention will be described.

FIG. 2 is a sectional view of the first production example, and FIG. 3 is a sectional view of the second production example.

Creation Example 1: A substrate (1) was prepared by laminating a polyester film (12) on which aluminum evaporation (11) was applied on both the front and back sides of 0ω so that the vapor-deposited surfaces were in contact with 0■.

A pattern (2) is first printed on the surface of the substrate (1) using a two-component vinyl chloride curing ink using a double-sided gravure printing machine.
At the same time as printing, a mark (3) for detecting the pattern position was provided. Further, the entire surface of the pattern (2) was coated with nitrocellulose varnish as a surface protective layer (14), the substrate (1) was turned over, and the reverse side was also printed and coated in the same manner. At this time, the pattern (2) in Table 2 is
The mark (3) is detected by the pattern position detection sensor,
Since the displacement was adjusted by the displacement, the front and back sides matched.

The printed flat foil was cut to the required width using a micro slitter to obtain a flat thread according to the present invention.

Creation example 2: On both the front and back sides of the polyester film (20),
) and aluminum f! M-foil (23) made by laminating (22) is attached so that the paper (21) side is the polyester film (23).
0) to obtain a substrate (1).

On the substrate (1), a symmetrical pattern (2) was simultaneously printed on both sides using a double-sided simultaneous printing gravure printing machine using salt-vinyl acetate ink, and a mark (3) for detecting the pattern position was provided. . At this time, the patterns (2) on the front and back sides were registered in the same manner as in Production Example 1 described above, and the front and back sides matched. After printing, the flat foil obtained by coating the entire surface with nitrocellulose varnish was cut to a required width to obtain a flat thread according to the present invention.

<Effects of the Invention> As described above, the present invention makes it possible to provide a pattern with matching front and back sides regardless of the material of the base film used for the substrate, and to obtain flat threads that are excellent for textiles having a pattern. be able to. In addition, when patterns are provided on both the front and back surfaces simultaneously, the manufacturing process is greatly reduced, which is advantageous in terms of cost.

[Brief explanation of the drawing]

FIG. 1 is an explanatory view showing one embodiment of the present invention, and FIGS. 2 and 3 are sectional views showing an example of producing a flat thread according to the present invention. (1)...Base (2)...Picture (3)
...Picture detection mark (4)...Picture detection sensor (5)...Plate cylinder patent application Person Toppan Printing Co., Ltd. Representative Kazuo Suzuki (one other person) Figure 1

Claims (2)

[Claims] (1) In a method for manufacturing flat thread obtained by cutting a flat foil with a symmetrical pattern printed on both the front and back surfaces of the substrate to the required width, the pattern is printed on a predetermined portion of both the front and back surfaces of the substrate, and at the same time A pattern position detection mark is provided, and the detection mark is detected by a pair of pattern position detection sensors that are preset to detect the front and back sides simultaneously when the front and back sides of the pattern match, and the displacement of the detected detection mark is detected. A method for producing patterned flat thread, which involves cutting flat foil obtained by printing a predetermined pattern into the required width while controlling register according to the pattern. (2) The method for producing a patterned flat thread according to claim 1, wherein the pattern is printed on both the front and back sides simultaneously.