JPH07238412A - Surface pattern-making system - Google Patents

Abstract

PURPOSE:To provide a system capable of obtaining surface patterns with yarn count expressed on, so designed that yarn-existing region is calculated from yarn density and count and displayed together with yarn-free region and a coloring treatment is made on the yarn-existing region. CONSTITUTION:On inputting yarn density and count through a keyboard 7 and a tablet 8 to input the texture, yarn kind, color, etc., of a woven fabric, a yarn expression calculator 12 calculates a proportion occupied by the yarns and a dividing treatment section 13 divides yarn region into yarn-existing region and yarn-free region. A grandrelle yarn expression-producing section 14 produces grandrelle expression data based on the color of the yarns inputted and the twist direction and the number of twist for the yarns, and color mask from a color mask-making section 15 and the grandrelle expression data are operated by a logically operating section 16 to take out color data, which are then delivered to a printer 6, thus outputting the aimed surface pattern with yarn count expressed on.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface pattern forming apparatus for a dyed dobby fabric, and more particularly to a surface pattern forming apparatus capable of expressing the yarn count.

[0002]

2. Description of the Related Art Textiles are woven fabrics.
There are various types of yarns, and the colors of the threads used vary depending on the design. In addition, although the woven fabric is seemingly flat, in reality, the surface of the woven fabric has irregularities depending on the type of woven structure, and in addition, depending on the thickness of the yarn and the number of yarns per unit, the feeling that it receives is delicate. By the way, it has the property of being different. Therefore, in order to commercialize a dyed dobby fabric with a new design, it is necessary to create a sample weave for each design and check whether the design is good or bad, which is not only time-consuming, but also a large cost burden. Was there.

In view of the above, a method for creating a surface pattern using a computer has been developed in designing a dyed dobby fabric (see, for example, JP-A-63-21948).

In this conventional method, a color pattern is first expressed on a color CRT by three colors of RGB (red, green, blue) signals, and the color pattern is expressed by YMCBk (yellow, magenta, cyan,
It is output as a hard copy expressed by a dither pattern made of (black). However, there is a problem in that the hard copy obtained in this way and the actually woven fabric often look different.

Therefore, the present inventor has already proposed a surface pattern forming apparatus capable of expressing the roundness and the three-dimensional appearance of the thread in order to output a hard copy with an expression close to that of an actual fabric (Japanese Patent Application No. 63-158296). ). According to this device,
When the roundness and the three-dimensional appearance of the thread can be expressed, but the woven pattern is plain or the woven fabric has the same color of the thread, there is a problem that the woven texture is not sufficiently expressed.

Here, the texture of the weave means the state of the color of the boundary between the adjacent yarns expressed by the weave design, the color arrangement of the warp and the weft, the thickness (density) of the warp and the weft, and the like. For example, in the case of a plain woven fabric, the woven texture is more important than the roundness and the three-dimensional appearance of the thread, and the woven fabric is discriminated by the woven texture.

The present inventor has already proposed a method of expressing such a texture feeling (Japanese Patent Application No. 1-1679).
27). According to this, for example, for a woven fabric in which the color of the plain and adjacent yarns is the same, the dyed dobby having a delicate weave on the surface can be specified by specifying the type of weave and the colors of the warp and weft. A surface pattern corresponding to the design of the fabric is obtained.

[0008]

The above-described surface pattern pattern expression techniques are based on the premise that one warp and weft, which are the basis of the dyed dobby fabric, have a single color. The inventor has further improved a twisted yarn in which one warp yarn and a weft yarn are twisted in two colors (floss yarn), which can express a feeling of two colors of warp yarn in consideration of the woven structure, density, and arrangement. Proposed a surface pattern forming device (Japanese Patent Application No. 1-3058).
03). However, even in the technique described above, there is a problem that the yarn count is not taken into consideration. An object of the present invention is to provide a surface pattern forming device capable of expressing the yarn count.

[0009]

In order to achieve the above object, in the present invention, an input means for inputting the texture of the woven fabric, the type of yarn to be used, and the color arrangement, and the woven fabric based on the input information by the input means. In the surface pattern pattern forming apparatus for a dyed dobby fabric, which is provided with an arithmetic processing means for forming the surface pattern pattern of the above, and a means for printing or displaying the surface pattern pattern by the arithmetic processing means, Means for calculating an existing area, means for dividing the thread into an area where the thread exists and an area of a white background according to the output of the means, and means for performing color processing on the area where the thread exists It is characterized by comprising.

[0010]

When the yarn density and the yarn count are input, the yarn expression calculating unit calculates the ratio of the yarn from the inputted yarn density and yarn count. The division processing unit divides the yarn region into a region in which the yarn exists and a white background region in which the yarn does not exist, using the ratio of the yarn calculated by the yarn expression calculation unit. The muffled yarn expression generation unit generates muffled yarn expression data from the input thread color and direction, and calculates the color mask and muffled yarn expression data created by the color mask creation unit by a logical operation unit. By doing so, a color is taken out, and the color is passed to the printer to output a surface pattern pattern in which the yarn count is expressed.

Therefore, according to the present invention, since it is possible to express the yarn count, it is possible to obtain a surface pattern which is closer to that of an actual fabric.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a block configuration diagram of a surface pattern pattern forming apparatus for a dyed dobby fabric according to an embodiment of the present invention. In the figure, 1 is a control unit that performs simulation processing, color mask processing, etc., 2 is a CRT for a control unit that displays a menu screen at the time of system startup, and displays error messages, 3 is a CRT controller, frame buffer, etc. A color processing section, a work screen, a color CRT on which a surface pattern and the like are displayed, a print controller for performing dither processing, etc., 6 a color printer, and 7
Is a keyboard, 8 is a tablet for inputting organization, color, etc.,
Reference numeral 9 is a RAM for storing the density of threads to be used, the density of a color printer, thread data, texture data and the like, and 10 is a disk for registering a surface pattern.

The control unit 1 includes a simulation processing unit 11
Also, from the yarn expression calculation unit 12 that calculates the number of dots that can be expressed, the dither used, and the number of repetitions, the division processing unit 13 that divides the warp yarn and the weft yarn into a plurality of regions, and the color, direction, and twist number data of the twisted yarn. A silk thread expression generation unit 14 for generating expression data of a silk thread, a color mask creation unit 15 for creating a color mask,
It is composed of a logical operation unit 16 that logically operates the color mask and the expression data of the thread created by the color mask creation unit, and a color data generation unit 17.

FIG. 2 is a processing flowchart of the surface pattern forming apparatus of the present invention. The present invention will be described in detail below using this flowchart.

Printer Selection (Step 21) In this step, the density M of the color printers to be used is set.
Enter (dots / inch).

Input of Thread (Step 22) In this step, according to the menu of the work screen displayed on the color CRT 4, the type of thread, that is, whether it is a single color twisted thread or a two color twisted thread is used by using the tablet 8. Input to the control unit 1. In the case of twisted yarns of two colors, the twisting direction and the number of twists of the yarns are input by the keyboard 7.

Tissue input (step 23) Next, according to the menu of the work screen displayed on the color CRT 4, the order is specified to specify the woven tissue,
Control unit 1 using tablet 8 for information regarding glass insertion
To enter. In case of forward order, enter the basic organization data,
In the case of a glass mail, enter the basic organization and the method data. Explaining the basic design, FIGS. 5A to 5C are views showing some examples of the woven design, FIG. 5A being a plain weave, and FIG. 5B being a plain weave.
A twill weave and (c) a satin weave. In the figure, black lines are warp yarns (warp yarns) and white lines are weft yarns (weft yarns). Figure 5
(D) to (f) are enlarged views of a part of the plain weave, twill weave, and satin weave, respectively.
As shown in (d), the warp and the weft are alternately arranged to form a basic design.

Array input (step 24) Here, the density n of the warp and weft to be used, that is, the number of threads per inch, the array of colors of the warp and the weft, the number of color units of the warp and the weft, and the book The control unit 1 using the key count 7 and the tablet 8 of the yarn count, which is a feature of the invention,
To enter. FIG. 6 is a diagram for explaining the relationship between thread thickness, count and density, where thread thickness (diameter) is d (inch),
Thread spacing is s (inch), thread count is N, thread density is n
It is known that the following equation holds when (books / inch). s = 1 / n d = k / √N (k is a constant) Therefore, the ratio of the area occupied by the yarn is d / s = k × n / √
N. Note that n / √N is called a cover factor.
In the present invention, inputting a count means expressing d / s, that is, forming a gap between threads. Conventionally, since the surface pattern is formed with the thread thickness d = the thread interval s, the count cannot be expressed.

FIG. 7 is a table showing an array of colors displayed on the color CRT 4, and in this figure, an array table of warp threads is illustrated. The vertical axis represents the color numbers (4821, 4911 ...) arranged from the top in the order of producing colors, and the horizontal axis represents numbers 1 to 1.
m indicates the position of the warp, and the number in the table is, for example, the color number 4821 and the position 1 specifies 6 yarns of the color 4821 (number of color units). I mean.

Simulation (Step 25) In this step, a simulation is performed on the simulation processing unit 11 of the control unit 1 using the basic tissue data and the array data. At the time of executing the simulation, the simulation is performed while changing the basic organization, the array data, the display position on the CRT 4, the magnification for the enlarged display, and the like. After the simulation, print processing starts.

Thread Expression Processing (Step 26) This processing is processing for expressing the count performed by the thread expression calculation unit 12, and will be described using the flow chart of FIG. With respect to the warp yarns, in step 261, a yarn interval s is calculated from the inputted yarn density n. Next, in step 262, the thread thickness d is calculated from the thread count N. Then, in step 263, the ratio d / s occupied by the yarn is calculated. The same applies to the weft. Further, the yarn expression calculation unit 12 calculates the number of representable dots, the dither used, and the number of repetitions from the density N (dots / inch) of the color printer used and the density M (threads / inch) of the yarn used.

Color Processing for Printing (Step 27) FIG. 4 is a processing flow chart of the color processing. First, the number of printable warp threads and weft threads is set according to the size of the paper (step 271).

Thread division (step 272) Since the surface pattern is created by the color printer 6, the thread to be expressed is composed of a plurality of dots. FIG. 8 shows a warp yarn A5 of interest and warp yarns A1, 3, 7, 9 and weft yarns A2 around the warp yarn A5 of interest in the plain weave design in which the count is expressed.
It is a surface view of the woven structure which consists of 4, 6, and 8. The number of representable dots obtained by the yarn expression calculating unit 12, the dither used,
Using the number of repetitions, the division processing unit 13 causes the warp yarn A5
(Referred to as an area) is defined as n (vertical) × m (horizontal) small areas aij
And each area corresponds to one dot of the color printer. When dividing in this way, using d / s previously calculated by the yarn expression calculation unit 12, a region where the yarn exists by d / s from the left end of the warp A5 is set to 1-d / s.
Is a blank area (white background). Similarly for the weft yarn, the region where the yarn is present is d / s from the lower end of the warp yarn A5.
-D / s is a blank area (white background). In this way, the count is accurately expressed by the area where the thread exists and the area where the thread does not exist. In other words, a gap due to the weaving of threads is expressed.

Representation of Mock Yarn (Step 273) For each region other than the above-mentioned white background, the muzzle yarn expression generation unit 14 defines the color and the twisting direction (right or left).
Fracture yarn expression data is generated based on the number of twists. Further, the color of the boundary of the area A5 is determined in consideration of the color around the area A5. For example, the color of the small area a ₁₁ of the area A5 is A1,
It may be determined according to an algorithm in consideration of the colors A2 and A4.

Color Masking Process (Steps 274 to 277) This process is a process performed on the control unit 1 to extract each color from the expression data of the sprue yarn created as described above. That is, the color mask creating unit 15 creates a color mask (step 274), and the logical operation unit 16 performs a logical product operation of this color mask and expression data to extract a color (step 275). The color data generator 17 logically sums the colors thus extracted (step 27).
6) The color data and coordinate values for one line are passed to the print controller 5 (step 277).

By performing the above processing on each yarn, the surface pattern pattern of the woven fabric expressing the count is printed out. Since the color representation method on the color CRT 4 and the hard copy by the color printer 6 are different (RGB signal for color CRT, YMCBk for color printer), color display on the color CRT 4 and color printer in advance. 6, the correspondence with the hard copy is set, and, for example, the RGB signal is converted into a dither pattern or the like capable of expressing halftone and then output.
By doing this, the color printer 6 which is a sample of the color and the color of which the design is determined on the color CRT 4 is selected.
You can match the color with the hard copy.

In the above-described embodiment, the blank portion is a white background, but the present invention is not limited to this, and it is possible to use a base of another color.

[0028]

As described above, according to the present invention, since it is possible to express the yarn count, it is possible to obtain a surface pattern which is closer to that of an actual fabric.

[Brief description of drawings]

FIG. 1 is a block configuration diagram of a surface pattern pattern forming device for a dyed dobby fabric according to an embodiment of the present invention.

FIG. 2 is a processing flow chart of the surface pattern forming apparatus of the present invention.

FIG. 3 is a flowchart of count expression processing.

FIG. 4 is a processing flow chart of color processing.

FIG. 5 (a) is a diagram showing a plain weave. (B) is a figure which shows a twill weave. (C) is a figure which shows satin weave. (D) is the figure which expanded a part of plain weave structure. (E) is the figure which expanded a part of woven structure of twill. (F) is an enlarged view of a part of the satin weave structure.

FIG. 6 is a diagram illustrating a relationship among thread thickness, count, and density.

FIG. 7 is a table showing an array of colors displayed on a color CRT.

FIG. 8 is a surface view of a plain weave structure in which a count is expressed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 control unit 2 CRT for control unit 3 color processing unit 4 color CRT 5 print controller 6 color printer 7 keyboard 8 tablet 9 RAM 10 disk 11 simulation processing unit 12 thread expression calculation unit 13 division processing unit 14 fuzz thread expression Generation unit 15 Color mask generation unit 16 Logical operation unit 17 Color data generation unit

Claims (1)

[Claims] 1. An input means for inputting a texture of a woven fabric, a type of thread to be used, and a color arrangement, an arithmetic processing means for creating a surface pattern pattern of the woven fabric based on input information from the input means, and the arithmetic processing means. In a surface pattern pattern creating apparatus for a dyed dobby fabric, which is provided with a means for printing or displaying a surface pattern according to, a means for calculating the area where the thread exists from the density and count of the thread, and the output of the means An apparatus for creating a surface pattern, comprising means for dividing the yarn into regions in which the yarn is present and regions for a white background, and means for performing color processing on the region in which the yarn is present.