CN109112655B

CN109112655B - Primary color matching silk and preparation process thereof

Info

Publication number: CN109112655B
Application number: CN201811075279.4A
Authority: CN
Inventors: 王强华; 李文刚; 甘学辉; 皮凤东
Original assignee: Gao Junchao
Current assignee: Gao Junchao
Priority date: 2018-06-15
Filing date: 2018-09-14
Publication date: 2021-03-02
Anticipated expiration: 2038-09-14
Also published as: CN109112655A

Abstract

The invention relates to a primary color matching yarn and a preparation process thereof, wherein the primary color matching yarn is a bundle of multifilament formed by melt spinning and contains more than two primary color fibers with different colors; primary colored fibers refer to monofilaments that exhibit a single color. The preparation process comprises the following steps: the melts with different colors are metered by different metering pumps, enter the distribution plate through different melt runners, and are distributed to different spinneret orifices through the distribution plate. The invention prepares the multifilament formed by a plurality of primary color fibers with colors which are difficult to distinguish by naked eyes through melt spinning, obtains the macroscopically uniform single-color fiber, has the appearance of strip-dyed or piece-dyed single-color fiber, can not distinguish the multi-color existence of the fiber even in close range observation, has exquisite layering and unique visual style.

Description

Primary color matching silk and preparation process thereof

Technical Field

The invention belongs to the field of fiber preparation, and relates to a primary color matching yarn and a preparation process thereof.

Background

In recent years, the development of chemical fiber high-tech products in the world is extremely rapid, and the modification, development and research of synthetic fibers also enter a new stage. The synthetic fiber is developed in the direction of fine denier, high performance, multiple functions and the like on the whole, most of chemical fiber enterprises with advanced technology in the world develop new synthetic fiber products by adopting a method of changing the appearance and the special-shaped section of the fiber in the spinning engineering, and create rich and colorful and various characteristic new synthetic fibers and high-grade fabrics.

In the prior art, the mixed fiber in the filament is mainly concentrated on DTY processing, and usually, doubling is carried out in the DTY processing process by adopting different fiber numbers and different varieties, although the doubling effect in the weaving process is better, the doubling effect is still better than that in the weaving process, the compounding of one bundle of fiber and another bundle of fiber cannot achieve the compounding and mixed fiber among the monofilaments, so that the existing filament mixed fiber has larger difference in aspects of strength, shrinkage, dyeing and the like. In the aspect of short silk blending, the opening and the carding are still difficult to be uniform, and the carding is only dispersed and mixed in the millimeter size, and the mixing between the monofilaments in the micron order cannot be finished, so that the color difference is large.

In order to solve the colorful problem of PET fiber, the prior art or method mainly adopts dyeing or stock solution coloring, polyester dyeing mainly adopts disperse dye and cationic dye, a large amount of waste water generated in the dyeing process has serious environmental pollution problem, the development and application of polyester varieties are limited, the stock solution coloring is restricted by small batch and multiple varieties, and the stock solution coloring is difficult to popularize and apply in melt direct spinning enterprises.

The textile color sense is an important aspect of the appearance style, the textile with complete color spectrum and novel pattern color matching provides abundant visual and emotional experiences for consumers, and meanwhile, the novel appearance color design can greatly improve the added value of the product. Single-color fabrics are the main varieties of textiles. At present, two coloring methods of piece dyeing and strip dyeing are mostly adopted for single-color fabrics. The piece dyeing processing is difficult to process various fiber blended fabrics with conflicting dyeing conditions, the production of various fiber blended fabrics with different dyeing properties and the application of strip dyeing processing are limited to a certain extent, various fibers are required to be dyed into target colors, the proofing is complex, the pollution is high, the efficiency is low, the stock color and fiber varieties are high, the management is difficult, and the prepared textiles are too consistent in color, lack of texture details and rigid in visual effect. The stripe dyeing process needs to dye various fibers into target colors, namely a computer color measuring and matching method is adopted, a special color dye is used for preparing color fibers meeting the requirements of the target colors, or a stock solution coloring method is used for preparing colored chemical fibers, the uniform blending of different types of fibers is realized through blending, uniform single-color fabrics are prepared, the uniform blending method of the special color fibers solves the problems of blended color products to a certain extent, but the problems of competitive dyeing, staining and the like possibly existing in the dyeing process, therefore, the novelty and diversity of the design of the appearance colors of the textiles are realized in a more efficient, energy-saving and environment-friendly mode through the composite color generation of the primary color fibers, and the method has important significance for solving the existing problems.

At present, melt direct spinning color spinning is mainly applied to producing black silk and semi-dull commodities because of large yield of the products and long variety replacement period. At present, the melt direct spinning color spinning is difficult to meet the requirements of multiple colors and varieties, the color spinning still takes the chip spinning as a main part, although the chip spinning can meet the requirement of variety replacement to a certain extent, the transition materials or the cleaning materials required in the process of variety replacement are more, the cost is seriously influenced, the cost of the chip spinning is 10-20% higher than that of the melt direct spinning, and the increase of the yield of the color spinning is limited.

Therefore, the development of the primary color matching yarn which has simple process, low cost, flexibility and changeability and is suitable for industrial production and the preparation process thereof have practical significance.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a raw colored yarn and a preparation process thereof, wherein the raw colored yarn is simple in process, low in cost, flexible and changeable and suitable for industrial production. The rapid development of the preparation technology of the superfine denier fiber lays a foundation for the realization of the invention.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the primary color matching silk is a bundle of multifilament formed by melt spinning and contains more than two primary color fibers with different colors; the primary color fiber is a monofilament presenting a single color, and the color of the monofilament can be a color which can be distinguished by naked eyes or a color which cannot be distinguished by the naked eyes.

As a preferred technical scheme:

the primary color matching yarn has the same or different cross sections of the primary color fibers of the two or more different colors.

The primary color matching yarn has the filament number less than or equal to 0.8 dpf.

In the primary color matching yarn, the primary color fibers of two or more different colors have equal or different filament deniers.

The bundle of multifilament yarns comprises 24 or more primary colored fibers as described above.

The primary color matching yarn as described above, the material of the primary color fibers of two or more different colors is the same or different, and is specifically selected from PET, PBT, PP, PTT and modified polyester, and the material of the fibers in the present invention includes but is not limited thereto, and all materials capable of being melt-spun and formed are within the scope of the present invention.

The primary color matching yarns are characterized in that all spinneret orifices on the spinneret plate for melt spinning are uniformly distributed and arranged in a concentric circle, a square, a rhombus, a straight line or a subarea, wherein the spinneret orifices corresponding to the primary color fibers with more than two different colors are distributed in a concentric circle, a radiation distribution, a quasi-concentric circle, a linear distribution, a block distribution or a combination distribution;

the concentric circle distribution means that spinneret orifices corresponding to primary color fibers of each color are distributed on concentric circles, one circle corresponds to one color, one color corresponds to one or more circles, the colors corresponding to two adjacent circles at most are the same, or one circle corresponds to different colors in sections, and the colors corresponding to arc sections corresponding to the same central angle of two adjacent circles at most are the same;

the radiation distribution means that spinneret orifices corresponding to primary color fibers of each color are distributed on radial lines, one line corresponds to one color, one color corresponds to one line, two lines or a plurality of lines, the colors corresponding to three adjacent lines at most are the same, or one line segment corresponds to different colors, the colors corresponding to the positions corresponding to three adjacent lines at most are the same, and the corresponding position is a line segment between two concentric circles taking a radiation center as a circle center;

the concentric circle-like distribution means that spinneret orifices corresponding to primary color fibers of each color are distributed on a concentric circle-like circle, and the main difference between the concentric circle-like circle and the concentric circle is that each circle is rectangular or regular hexagon in shape, one circle corresponds to one color, one color corresponds to one circle, two circles or more circles, the corresponding colors of the most adjacent two circles are the same, or one circle is segmented to correspond to different colors, the corresponding colors of the most adjacent two circles are the same, and the corresponding positions are circle segments corresponding to the same central angle of the circumscribed circle of each circle;

the linear distribution means that spinneret orifices corresponding to primary color fibers of each color are distributed on mutually parallel straight lines, each straight line corresponds to one color, one color corresponds to one straight line, two straight lines or three straight lines, the colors corresponding to at most three adjacent straight lines are the same, or each straight line is segmented to correspond to different colors, the colors corresponding to the corresponding positions of at most three adjacent straight lines are the same, and the corresponding positions are line segments which are positioned in the same rectangle, have two end points positioned on the edge of the rectangle and are vertical to one edge of the rectangle;

the block distribution means that spinneret orifices corresponding to the primary color fibers of each color are distributed in blocks with the same or different shapes, one block corresponds to one color, and one color corresponds to one block;

the combined distribution is the combination of more than two of concentric circle distribution, radiation distribution, concentric circle-like distribution, linear distribution and block distribution.

The invention also provides a process for preparing the primary color matching yarns, which is to extrude the melts with different colors from different spinneret orifices on the same spinneret plate to prepare the primary color matching yarns.

As a preferred technical scheme:

in the process, the melts with different colors are metered by different metering pumps, enter the distribution plate through different melt flow channels and are distributed to different spinneret holes through the distribution plate.

In the above process, the melts of different colors are melts directly conveyed after polymerization, or melts obtained after melting colored polymer chips or a mixture of colorless polymer chips and toner.

The technical solution of the present invention will be explained in detail below.

For convenience of description, the present invention designates multifilament yarn made of a plurality of primary-colored fibers, colors of which are difficult to distinguish by naked eyes, prepared by melt spinning as primary-colored yarn, and is defined as follows: the primary color matching yarn is a bundle of multifilament formed by melt spinning and containing more than two primary color fibers with different colors. The primary color fiber refers to a monofilament presenting one color, and a single fiber presents one color, that is, the monofilament is a single color. The multifilament is composed of a plurality of monofilaments, and single color monofilaments (primary color fibers) of different colors are combined to form a multifilament (primary color filaments), so that the multifilament (primary color filaments) can exhibit a color effect synthesized by primary color fibers of a plurality of colors. Especially, the monofilament titer of the primary color fiber is thin enough to be the size which is difficult to distinguish by naked eyes, and the primary color matching filament can show the single color effect of uniform color and luster after a plurality of colors are mixed according to the principle of three primary colors. More than two kinds of fibers with different colors are extruded through the same spinneret plate, and the primary color matching yarn with mixed colors can be obtained. In practical applications, there are generally two cases of color mixing observed by human eyes: firstly, the color of the monofilament (namely each fiber) can be distinguished by naked eyes, and the color mixing effect is presented at this time, such as common hemp ash and fancy yarn, and the color of the primary color matching yarn is more uniform compared with the prior art; secondly, the color of the monofilament can not be distinguished by naked eyes, and compared with the prior art, the invention obtains the monochromatic multifilament with more macroscopically uniform color based on the ternary color matching principle

The primary color matching yarn is a mixed fiber which can be obtained by directly extruding and molding from a spinneret plate; the term "blending" as used herein refers to not only color blending but also fiber cross-section blending, i.e., blending of fibers in a similar manner to a board based on the "blending" described above, and even blending of materials. The primary color fiber is single monofilament of single material, each primary color fiber is single material, but the same spinneret plate can extrude more than two different fibers of different materials, the materials comprise PET, PBT, PTT, PA6, PP, modified polyester and the like, and the primary color fiber can also be fiber obtained by blending and spinning more than two polymers. Of course, the properties of different polymers are different, and the process (such as melting point, stretching condition and the like) needs to be matched with the material, and if the basic physical indexes are relatively close, the invention can be easily realized. If the properties of the two materials are far apart, it is also possible to modify one of the materials to have physical properties close to those of the other material, which is also satisfactory. The mixing of the primary color matching silk can be color mixing, and can also be color and material mixing.

Color is a perception that is influenced by the observer, the illumination light, and the measurement conditions. Color mixing is the simultaneous introduction of different colors of light into the human eye to produce a new color. The primary color matching silk of the invention is obtained by mixing various primary color fibers of red, yellow, blue, green, white, black and the like according to a certain proportion, and is actually a visual uniform color. To obtain a visually uniform color, there is a certain requirement for the cell size of the primary color fibers. The ability of the eye to resolve 2 neighboring object points is referred to as the resolution of the eye. It is mainly determined directly by the retinal optic nerve cells of the eye. If the images of the adjacent 2 object points on the retina fall on the same optic nerve cell, then the information reflected by the optic nerve to the brain is: this is an objective. Therefore, the minimum retinal resolution distance must be greater than the diameter of one optic nerve cell. The mean diameter of the pyramidal cells is approximately 0.005mm (5 μm), thus determining a minimum distance of 0.005mm (5 μm) between two object points that can be resolved. The minimum viewing angle between two object points that the human eye can resolve is often referred to as the viewing angle resolution of the human eye. The theoretical resolving power of the human eye is 20 arc seconds, the eye is usually particularly good at a resolution of 1 angle, and in the ideal case (clear enough days without glistenings) the black stripes on white paper are tested. Objects with a width exceeding 1 angular division merge with the background.

Since the total reflectivity of the mixed color sample at a certain wavelength is the weighted average of the reflectivity and the mass ratio of each single color sample at the wavelength, the primary color matching silk of the invention can obtain the macroscopically uniform single color fiber presentation effect. After a plurality of primary color fibers with different colors form the primary color matching filament, the primary color fibers with different colors have the mutual influence on the absorption and scattering action of light and the mutual covering relation among the fibers, and each primary color fiber is used as a carrier of a coloring material and absorbs incident light in a specific wavelength range according to the subtractive color mixing to obtain reflected light with different colors. Meanwhile, in the fiber aggregate, the fibers are not only arranged in parallel and are mutually covered or overlapped, and at the covered or overlapped part, incident light rays are transmitted into the bottom layer fibers through the surface layer fibers by means of layer-by-layer refraction, and in the process, the incident light rays are selectively absorbed by different pigments; when the incident light is reflected by the bottom layer fiber, the incident light is refracted layer by layer, the transmission reaches the surface layer fiber, and the incident light is secondarily filtered by different pigments, finally, a plurality of tiny color spots of the reflected light are formed on the surface layer fiber, and the different color spots are formed by the subtractive color mixing of the pigments. Then, different micro color spots are subjected to color mixing in space to generate light stimulation to an observer, so that a specific color effect can be observed. The color effect exhibited by the fiber assembly is not only influenced by the selective absorption of the incident light by the colorant, but also the morphological structure of the fibers and the complex arrangement relationship among the fibers are factors influencing the color effect.

The ultra fine denier fiber is a fiber having a relatively small single fiber fineness (dpf), and is conventionally called a microfine fiber. When dpf is small to some extent, a vast number of new and different properties are highlighted. The form structure (such as section form, fineness, etc.) and arrangement mode of the fiber influence the absorption of the primary color dye to the incident light, when the diameter of the fiber is less than 10 micrometers, the covering or exposure of the primary color fiber in the fiber aggregate can be changed infinitely, and a more uniform color effect is formed. The size distinguishable by naked eyes is 6-7 mu m/25cm, correspondingly, the diameter of the round filament of the polyester fiber is slightly smaller than 7 mu m when the filament number of the polyester fiber reaches 0.5dpf, and the diameter of the round filament of the polyester fiber is smaller than 9 mu m when the filament number of the polyester fiber reaches 0.8 dpf. For the diameter of the single fiber, the diameter of the single fiber is less than 5 μm, which exceeds the resolution limit of human eyes, and the diameter of the single fiber is less than 10 μm (the filament number corresponding to the polyester round filament is 1.0dpf), the color of the single fiber can not be resolved by human eyes, and the fusion between the fibers is completely generated in color.

The main idea of the invention is to combine the monochromatic primary color matching silk by the primary color fiber, namely the primary color matching silk showing single color. There is also an exception, such as: the primary color fibers with the same color in the primary color matching silk are gathered to form the color which can be distinguished by human eyes locally, so that the obtained primary color matching silk can form the color matching silk style. The arrangement of the single-color primary colored yarn and the fancy primary colored yarn at the time of spinning formation will be described in detail below by way of example.

In addition, when the filament number of the primary color fiber is more than or equal to 1.0dpf, human eyes can basically distinguish the color of the filament, the obtained primary color matching filament can show colorful effect no matter whether the filament is uniformly distributed during spinning, the color appearance has larger degree of randomness and irregularity, the color is gorgeous, and the visual style is novel. The multifilament obtained in the above two cases is the "fancy grey yarn".

It has been mentioned above that the morphological structure of the fibre, such as the cross-sectional shape, affects the absorption of the incident light by the primary colour dye, as is the case for primary fibres. In the present invention, the primary color fibers of two or more different colors have the same or different cross sections. The method for obtaining the multifilaments with different cross-sectional shapes mainly comprises the steps of designing spinneret orifices, arranging the spinneret orifices with different cross-sectional shapes on the same spinneret plate, and making a plurality of related researches by the assistant professor of Liwen steel of Donghua university, wherein the related researches are also already patented; the invention is not focused on this, and therefore not discussed much about the same plate profile problem, but only on the variation of the color of the multifilament. The primary color fibers with different sections greatly enrich the color gradation of the primary color matching silk and improve the color fullness and fineness of the primary color matching silk; for example, the primary color fiber of a certain color is designed to have a triangular or flat cross section with good refraction effect or an S-shaped or wavy cross section with diffuse reflection effect.

In order to obtain good color matching effect, the number of the primary fibers in the primary color matching yarn cannot be too small, which is also related to the normal spinning process, and too small superfine denier fibers cannot be realized according to the most advanced manufacturing technology at present. It is known that in the conventional spinning technique, the finest filament fineness of the polyester fiber is 0.22dpf, the finest multifilament fineness is 10D, and the minimum number of orifices of the extra fine denier fiber is 8 f. In the spinning process, in order to ensure that the necessary mechanical properties are obtained by post-spinning stretching, the multifilament needs to have enough tension, the number of fine pores of the monofilament fineness is large, and the number of large pores of the monofilament fineness can be properly reduced. According to the conventional superfine denier spinning technology, the number of spinneret holes with the filament number of 0.8dpf is generally more than or equal to 24f and 20D/24f, and 12f is produced by trial in the limit. For color matching, too few primary color fibers also increase the difficulty of displaying single color, and the primary color fibers may display non-uniformly and show non-correct single color. The more the number of the primary color fibers in the primary color matching silk is, the more obvious the monochrome effect can be displayed.

In the case of the same size which is difficult to distinguish or cannot be distinguished by human eyes, the filament titers of the primary color fibers of the two or more different colors may not be equal except for being equal as long as the same spinning process requirements can be met. Generally, it is convenient to produce and easy to consider that the primary color fibers in the primary color matching yarn have equal titer, and particularly, when the cross-sectional shapes of all the primary color fibers are the same, the mechanical properties of the primary color matching yarn can be controlled conveniently. The situation that the monofilament titer of the primary color fiber of two kinds of different colours is unequal is more complicated, because the difference and needs such as visual effect of the material of primary color fiber, cross sectional shape etc. for obtaining the primary color matching silk of expected all kinds of good performance, it is more convenient and feasible through the adjustment of monofilament titer, and this has included three kinds of circumstances:

1. the single-yarn fineness of the primary-color fibers with the same color is equal, and the single-yarn fineness of the primary-color fibers with different colors is not equal to each other. Based on the consideration of combination of several factors, such as material, cross-sectional shape, spinnability, color development effect, etc. For example, when the primary fibers of different colors have different cross-sectional shapes, it is likely that the spinnability is poor if the same filament fineness is used — it is difficult to coordinate the primary fibers of different colors during extrusion molding at the spinneret orifice and post-spinning drafting. The spinnability problem can also exist when the primary color fibers with different colors are different in material, the shearing rates of spinneret orifices of different materials are different when other conditions are the same, and the stretched oriented crystals are also different, so that the primary color fibers with different materials can be prepared into the primary color yarns by adjusting the filament number. In order to obtain various primary color matching filaments with rich gradation, under the condition that the distribution form is not changed, various color indexes such as hue, color gradation, color temperature, saturation, brightness, contrast and the like of the primary color matching filaments can be controlled by adjusting the single filament number of the primary color fibers, so that the expected color development effect is obtained.

2. The single-fiber fineness of some primary-color fibers in the primary-color fibers with different colors is equal to the single-fiber fineness of some primary-color fibers. The color gradation of the primary color matching silk is enriched mainly from the aspect of color development effect. Under the condition of no change of the distribution form, various color indexes such as hue, color level, color temperature, saturation, lightness, contrast and the like of the primary color matching filament are controlled by adjusting the single filament fineness of certain primary color fibers, so that the expected color development effect is obtained. Of course, the primary color fibers of the same color may have different materials or different cross-sectional shapes, and in this case, the primary color fibers may also have other properties, such as mechanical properties, of the primary color fibers desired to be obtained.

3. The single-yarn fineness of the primary-color fibers of the same color is not equal to each other, and the single-yarn fineness of the primary-color fibers of different colors is not equal to each other. By combining the above 2 points, corresponding elements can be matched at will according to actual production needs or market needs of products.

The primary color matching yarn is formed by melt spinning, and the material of primary color fibers in the primary color matching yarn is various high molecular materials (such as PET, PA, PBT, PP, PTT and modified polyester) suitable for melt spinning. The materials are directly conveyed after polymerization (melt direct spinning) or are melted after slicing (slice spinning). In the prior art, only PET and modified polyester can be directly spun by melt, and other materials such as PA, PBT, PP and PTT are all chip spinning.

As is well known, in order to satisfy the cooling conditions for the spinning performance, the arrangement of the orifices of the spinneret plate is generally in the following arrangement: the melt spinning spinneret is generally circular, and therefore, the rectangular arrangement is generally a square arrangement from the viewpoint of production efficiency. The present invention follows from conventional arrangements of orifices, but is not limited to these conventional arrangements, and includes other rectangular arrangements than square and a wide variety of other possible arrangements are also encompassed by the present invention. Only, there is an arrangement, which needs to be listed specifically, that is, the arrangement is divided into regions, that is, the spinneret holes on the spinneret plate are arranged according to the region distribution, and the arrangement design of the spinneret holes in each region is the same or different, and is changed according to the color and luster of the required product.

The arrangement of the orifices in combination with the distribution of the molten melt is critical to the color of the primary coloured filaments and can be said to be the two most critical factors affecting the color of the primary coloured filaments.

Let us say that the arrangement of the orifices of each color includes, but is not limited to:

firstly, when all spinneret orifices on a spinneret plate for melt spinning are arranged in a concentric circle, the corresponding spinneret orifices of more than two primary color fibers with different colors are arranged according to the following alternative rule:

1. circle alternating with circle

The melts with different colors respectively pass through the spinneret orifices on the circles in the concentric circles, one circle corresponds to one color, one color corresponds to one or more circles, the same color is not as close as possible, and the colors corresponding to the most two adjacent circles are the same, so that a good dispersed color matching effect is achieved.

2. Alternating between circular arcs

The melts with different colors respectively pass through the spinneret orifices on a section of circular arc of each circle in the concentric circles, one circle section corresponds to different colors, the circular arc sections corresponding to the same central angle on the two adjacent circles correspond to different colors as far as possible, and the condition that the colors are not more than two circles at most exists.

3. Sector-shaped alternation

The melts with different colors respectively pass through the spinneret orifices on the sectors in the concentric circles and are mutually alternated, the central angles of the sectors are equal or different, one sector corresponds to one color, and the other color corresponds to the other sector. This is also a specific example of the zoned arrangement mentioned later.

4. Radius alternating with radius

The melts with different colors respectively pass through the spinneret orifices on each radius in the concentric circles, one radius corresponds to one color, one color corresponds to one radius, two radii or three radii, the same color is not adjacent to each other as much as possible, and the colors of the three adjacent radii are the same at most.

5. Alternating segments with segments

The melts with different colors respectively pass through a certain section of spinneret orifices on each radius in the concentric circle, one radius corresponds to different colors in sections, the same color in each radius is not adjacent as much as possible, or the colors of the corresponding positions of the two radii are the same, the colors corresponding to the corresponding positions of the three radii which are adjacent at most are the same, and the determination is specifically carried out according to the total number of the spinneret orifices and the color development effect.

6. Combined alternation

Namely a combination of more than two alternative modes in 1-5, for example, a combination of 1 and 2, wherein a plurality of circles close to the center of the concentric circle adopt the alternative mode of 1, and other circles adopt the alternative mode of 2.

Secondly, when all spinneret orifices on the spinneret plate for melt spinning are arranged in a square shape, the corresponding spinneret orifices of more than two primary color fibers with different colors are arranged according to the following alternative rule:

1. circle alternating with circle

2. Alternating between circular arcs

3. Line to line alternation

The melts with different colors respectively pass through the spinneret orifices on each line in the radial lines, one line corresponds to one color, one color corresponds to one line, two lines or a plurality of lines, and the colors corresponding to the most adjacent three lines are the same.

4. Line segments alternating with line segments

The melts with different colors respectively pass through the spinneret orifices on a section of each line in the radial lines, one line corresponds to different colors in sections, the corresponding colors of the corresponding positions of at most three adjacent lines are the same, and the corresponding position is a line section between two concentric circles taking the radiation center as the center of a circle.

5. Alternating rows and columns

The melts with different colors respectively pass through the spinneret orifices on each straight line in the mutually parallel straight lines, one straight line corresponds to one color, one color corresponds to one straight line, two straight lines or three straight lines, the colors corresponding to at most three adjacent straight lines are the same, and the determination is specifically carried out according to the total number of the spinneret orifices and the color development effect.

6. Alternating segments with segments

The melts with different colors respectively pass through the spinneret orifices on one line segment of each straight line in the mutually parallel straight lines, one line segment corresponds to different colors, the corresponding colors of the corresponding positions of at most three adjacent straight lines are the same, the corresponding positions are line segments which are positioned in the same rectangle, have two end points positioned on the sides of the rectangle and are vertical to one side of the rectangle, and the melt is determined according to the total number of the spinneret orifices and the color development effect.

7. Alternate shape

The melts with different colors respectively pass through the spinneret orifices on each circle in the circular ring, one circle corresponds to one color, one color corresponds to one circle, two circles or more circles, and the corresponding colors of at most three adjacent circles are the same.

8. The ring sections alternate with the ring sections

The melts with different colors respectively pass through the spinneret orifices on a section of line segment of each circle in the loop, one circle corresponds to different colors in sections, the corresponding colors of the corresponding positions of at most two adjacent circles are the same, and the corresponding positions are the circle sections corresponding to the same central angle of the circumscribed circle of each circle.

9. Block alternation

The areas of all the spinneret orifices are equally or unequally divided into a plurality of blocks, and the melts with different colors respectively pass through the spinneret orifices in each block, one block for one color and one block for one color.

10. Combined alternation

That is, the combination of more than two alternate modes in 1 to 9, for example, the combination of 3 and 4, the alternate mode of 3 is adopted in the upper rows, and the alternate mode of 4 is adopted in the other rows.

Thirdly, when all spinneret orifices on the spinneret plate for melt spinning are arranged in a diamond shape (also called equal pitch arrangement), the spinneret orifices corresponding to the primary color fibers with more than two different colors are arranged according to the following alternating rule:

1. circle alternating with circle

2. Alternating between circular arcs

3. Line to line alternation

4. Line segments alternating with line segments

5. Alternating rows and columns

6. Alternating segments with segments

7. Hexagonal alternation

The melts with different colors respectively pass through spinneret orifices on each hexagon in a plurality of hexagons which are mutually sleeved together, one hexagon corresponds to one color, one color corresponds to one hexagon, two hexagons or three hexagons, and the corresponding colors of at most three adjacent hexagons are the same.

8. The ring sections alternate with the ring sections

The melts with different colors respectively pass through spinneret orifices on a section of line of each hexagon in a plurality of hexagons which are mutually sleeved together, a hexagon corresponds to different colors in sections, the corresponding colors of the corresponding positions of at most two adjacent hexagons are the same, and the corresponding positions are circle sections corresponding to the same central angle of each circle circumscribed circle.

9. Block alternation

10. Combined alternation

Four, one-line arrangement

1. Circle alternating with circle

2. Alternating between circular arcs

3. Line to line alternation

4. Line segments alternating with line segments

5. Alternating rows and columns

6. Alternating segments with segments

7. Hexagonal alternation

8. The ring sections alternate with the ring sections

9. Block alternation

10. Combined alternation

That is, the combination of more than two alternative modes in 1-9, for example, the combination of 3 and 4, the alternative mode of 3 is adopted for some radial lines, and the alternative mode of 4 is adopted for other radial lines.

Fifthly, arranging by regions

The spinneret orifices on the spinneret plate are distributed according to more than two areas, the arrangement of the spinneret orifices in each area is the same or different, and the spinneret orifices in each area are arranged according to any arrangement mode of one to four.

In order to meet the requirement of the arrangement of the spinneret orifices, the invention designs a unique melt distribution structure (distribution plate distribution mode).

1. Concentric circle distribution

The TA colors are distributed in a single circle (circle), namely, one circle (circle) corresponds to one color and one color corresponds to one circle (circle) in concentric circles;

TB each color is distributed in a plurality of circles (circles), namely one circle (circle) corresponds to one color and one color corresponds to a plurality of circles (circles) in concentric circles, the same color is located in nonadjacent circles (circles) as much as possible, and the maximum number of two circles (circles) in one color is achieved, so that a good dispersed color matching effect is achieved;

TC is distributed in a same circle (circle) in a segmented and different-circle staggered manner, namely in a concentric circle, one circle (circle) is divided into a plurality of sections of circular arcs, each section of circular arc corresponds to different colors, the circular arc sections corresponding to the same central angle on two adjacent circles (circles) are not the same color as much as possible, and the condition that the number of the circular arc sections is not more than two circles (circles) at most exists;

TD sector allocation (block allocation), i.e. dividing the concentric circle into a plurality of sectors through the center of the concentric circle, the central angles of the sectors are equal or different, and one sector corresponds to one color.

2. Radial distribution

FE single-row distribution, namely, one line corresponds to one color and one color corresponds to one line in a plurality of lines radiating from the center to the periphery;

FF double-row distribution, namely one line corresponds to one color and one color corresponds to two lines in a plurality of lines radiating from the center to the periphery, and the same color is positioned on the lines which are not adjacent as much as possible;

FG multi-row distribution, namely, one line corresponds to one color, one color corresponds to a plurality of lines, and the same color is positioned on non-adjacent lines as much as possible in a plurality of lines radiating from the center to the periphery;

FM collinear segmentation off-line dislocation distribution, namely from the many lines of center to radiation all around, a line divides into the multistage, and every section corresponds a colour, and the same colour of each line is as far as possible not adjacent, also can be that the colour of two lines correspondence position is the same, and the colour that does not exceed three lines correspondence position at most is the same.

3. Quasi-concentric circle allocation

HE single-row distribution, namely, one circle corresponds to one color and one color corresponds to one circle in concentric circles (the main difference between the concentric circles and the concentric circles is that the shape of each circle is rectangular or regular hexagon);

HF double-row distribution, namely one circle corresponds to one color and one color corresponds to two circles in a quasi-concentric circle;

HG multi-row distribution, namely in a concentric circle, one circle corresponds to one color, one color corresponds to a plurality of circles, the same color is not as close as possible, and at most two circles have the same color;

HM is same circle segmentation different circle dislocation distribution, namely in class concentric circles, each circle is divided into a plurality of paragraphs, each paragraph is a color, and circle are alternative, the same color is not as close as possible, at most, the color of the corresponding position of two circles is the same.

4. Linear distribution

XE is distributed in a single row, namely, one straight line corresponds to one color and one color corresponds to one straight line in a plurality of mutually parallel straight lines;

XF is distributed in double rows, namely, one straight line corresponds to one color and one color corresponds to two straight lines in a plurality of parallel straight lines;

XG is distributed in multiple rows, namely one straight line corresponds to one color and one color corresponds to three straight lines in multiple parallel straight lines;

XM collinear segmentation different-line dislocation distribution, namely in a plurality of mutually parallel straight lines, a straight line segment corresponds to different colors, the corresponding colors of the corresponding positions of at most three adjacent straight lines are the same, and the corresponding positions are line segments which are positioned in the same rectangle, have two end points positioned on the side of the rectangle and are vertical to one side of the rectangle;

5. block allocation (sector entry 1)

The QX homomorphic blocks are that the whole is divided into more than two blocks with the same shape, each block corresponds to one color, and the colors of the two adjacent blocks are different as much as possible;

the QY special-shaped blocks (shapes: shapes) are divided into more than two blocks with different shapes, each block corresponds to one color, and the colors of the two adjacent blocks are different as much as possible.

6. Combined dispensing

ZZ each of the combinations of the assignment structures.

The color components required for color matching are two, three or five colors, two colors such as classical black and white or black and red, three colors such as the three primary colors RGB or others, five colors such as the three primary colors black and white, or other five colors.

The arrangement of the orifices for the different colors and the melt distribution are shown in the table, in which 2 stands for two colors, 3 for three colors, 5 for five colors, a for feasible, and a for possible, some of the Δ in the table being possible only in structured form and possibly repeated in the other columns.

Meanwhile, in order to solve the problem of color space non-uniformity and facilitate the calculation of color perception differences, the CIE (international commission on illumination) recommends CIE1976L a b to evaluate the color industry sector of domestic dyes, pigments, inks and the like, mostly adopts the CIE1976L a b system, and the CIE1976L a b color system is a three-dimensional coordinate system consisting of L, a and b.

The coordinate axis of L is a white-black axis, the colors represented on the axis are all achromatic colors, the axis of L represents the lightness, the lightness L ranges from 0 to 100, the lowest part of the axis is black, the L is 0, the highest part is white, the L is 100, and the middle part is gray with gradually changing depth; a is a coordinate axis of red-green, a represents magenta, a represents green; b is the axis yellow-blue, + b is yellow, -b is blue. In the CIE1976L a b color system, the arbitrary color sensing point P can be represented by lightness index L, chromaticity indexes a and b, the coordinates constituting the point P are (L, a, b), and the chromaticity values corresponding to the respective primary color fibers are shown in the following table.

When the multiple primary colors of yellow, red, blue, green, white and black are mixed in any mode or proportion, the maximum number of colors can be obtained, and the widest color gamut space is formed. For example: red, green and blue are defined as the three primary colors of light, the complementary colors cyan, magenta and yellow are defined as the three primary colors of pigments, and the three pigments of yellow, magenta and cyan are mixed in different proportions to obtain the maximum color gamut. For an ideal tri-chromatic fiber, the yellow fiber should absorb the blue portion of 1/3 in the visible spectrum and reflect the remaining 2/3 red and green portions of the visible spectrum; the magenta fiber should absorb the green portion of 1/3 in the visible spectrum and reflect the remaining 2/3 red and blue portions of the visible spectrum; cyan fibers should absorb the red portion of 1/3 in the visible spectrum and reflect the remaining 2/3 green and blue portions of the visible spectrum.

In addition, aiming at the material collocation of the primary color matching yarns, the main factors of the spinnability of the polymer material are the molecular weight and the molecular weight distribution of the polymer and the apparent viscosity of the melt at a specific temperature; spinning between the same materials takes into account molecular weight and molecular weight distribution, and spinning between different materials involves, in addition to molecular weight and molecular weight distribution, melt apparent viscosity at a specific temperature and identity and differences between different materials under drawing conditions. Different materials are spun by the same spinning component, the melt apparent viscosities of the different materials at the spinning temperature are required to be as consistent as possible or the difference is in a small range, the requirements can be met by selecting and adjusting the molecular weight, the melting point, the spinning temperature and the like of a polymer, and the compounding of different materials such as PET and PA, PET and PP and the like in the composite spinning in the prior art is mostly realized by the means. Meanwhile, after melts of different materials are extruded from the same spinneret plate, although the materials are different, the main spinning materials such as PET, PA, PBT, PP and PTT basically can meet the same drawing ratio under the same drawing condition, so that the physical indexes of the main spinning materials are relatively close to each other, and the winding of tows is finished, wherein the products comprise POY, FDY, DTY and the like.

The primary color matching silk obtained by matching the monofilaments made of different materials has the advantages that the performance of the monofilaments made of different materials is considered simultaneously, and if one bundle of fibers of the primary color matching silk contains PET monofilaments and PA monofilaments simultaneously, the primary color matching silk absorbs moisture and has the characteristics of stable size and different colors.

The Polyamide (PA) has the greatest advantages of good wear resistance which is higher than other fibers, the wear resistance of the Polyamide (PA) is 10 times higher than that of cotton and 20 times higher than that of wool, and the wear resistance of the primary color matching yarn can be greatly improved by slightly adding some polyamide monofilaments into the primary color matching yarn. Meanwhile, the elastic recovery rate of the PA is high, and when the PA is stretched to 3-6%, the elastic recovery rate can reach 100%; good durability, no fracture after being bent for thousands times, and good air permeability. However, the PA has poor retentivity, and the clothes made of the PA are not as stiff and smooth as polyester. The fabric of the primary color matching silk compounded by the PET monofilament and the PA monofilament has the characteristics of light weight, softness, drapability, elegance and air permeability, has good hygroscopicity and moisture conductivity, good comfort, luxurious and elegant appearance, has no time to compare with real silk, and has the characteristics of stable size, good shape retention, easy maintenance and the like.

For the PBT material, the melting point and the glass transition temperature of the PBT fiber are lower than those of the common polyester fiber due to the longer flexible part on the basic chain link of the PBT macromolecule, the flexibility and the elasticity of the macromolecule chain are higher than those of the common polyester fiber, the elasticity of the macromolecule chain is far higher than that of chinlon and is similar to that of spandex, and in addition, the boiling water shrinkage rate of the PBT macromolecule chain is higher, so that the PBT macromolecule chain can be used for manufacturing high-grade textile fabrics with high elasticity, high creping, good hand feeling, strong stereoscopic impression and unique style. If the PBT and the PET monofilament are compounded to obtain the primary color matching yarn, the primary color matching yarn can not only keep the characteristics of good elasticity and high flexibility of the PBT fiber, but also keep the advantages of stiff and smooth PET and good dimensional stability.

As for the PTT material, the macromolecule chain structure diagram of the PTT shows that the crystallization unit of the PTT material contains even methylene, the molecular chain is almost unfolded, and the odd methylene units of each chain unit generate odd carbon effect among macromolecules, so that a benzene ring cannot be positioned on the same plane with three methylene, and the repulsion force of two adjacent carbonyl groups can only be arranged in a staggered way in space, so that the molecular structure is Z-shaped, and the structure endows the fiber with excellent performance of high specific flexibility. If PTT and PET monofilament are compounded to obtain the primary color matching yarn, the primary color matching yarn not only has particularly excellent flexibility and elastic recovery, but also has excellent crease resistance, dimensional stability, weather resistance and good barrier property. In addition, it can withstand ultraviolet ray sterilization and has good stability against hydrolysis. The nylon fabric integrates the softness of nylon, has better color fastness and bulkiness of acrylic to avoid abrasion tendency, has good hand feeling of anti-fouling performance of polyester, and integrates the excellent wearability of various fibers with the inherent elasticity of the nylon fabric. The fabric woven by using the primary color matching silk as the raw material has the characteristics of comfortable wearing, soft touch, easy washing, quick drying and no ironing, and meets the requirements of people on fast-paced life.

For PP materials, the heat and moisture transmission inside and outside the fabric greatly influences the wearing comfort of human bodies. Polypropylene (PP) has excellent capillary wicking effect, fine denier yarn is more obvious, sweat can be effectively and rapidly transferred, the resistance to steam diffusion is minimum, the dynamic degree of drying speed is maximum, the polypropylene has the same heat preservation performance as wool, and the wearing comfort can be obviously improved. If PP and PET monofilaments are compounded to obtain the primary color matching silk, the primary color matching silk can meet the requirements of soft hand feeling, good luster, good wicking effect, excellent dimensional stability and the like. Fabrics such as sportswear and maintenance clothes and the like prepared by taking the primary color matching yarns as raw materials have good moisture vapor permeability, capillary water transmission, quick-drying insulativity, size stability and good wearing comfort.

The form of the finally produced primary color-matching yarn is not limited to POY yarn, and other yarns such as FDY yarn, DTY yarn and short yarn may be applied to the present invention as long as the material thereof can satisfy the requirement of the drawing condition.

Advantageous effects

(1) The color matching yarns are directly obtained from spinning, dyeing and finishing processing are not needed, the production cost is greatly reduced, pollution and damage to the environment are reduced, and the color matching yarns have high economic value and environmental protection value;

(2) the color matching yarn is directly prepared by spinning, compared with dye, the color material has very high bonding fastness with a fiber matrix, and has very high fastness to washing, friction, sunlight and the like, and the prepared product has bright, rich and durable color;

(3) the invention provides a primary color matching yarn based on a ternary color matching principle and a preparation process thereof, which are characterized in that multifilament consisting of a plurality of primary color fibers with colors which are difficult to distinguish by naked eyes is prepared by melt spinning to obtain macroscopically uniform single-color fibers, the single-color fibers have the appearance of strip-dyed or piece-dyed single-color fibers, the multi-color existence of the fibers cannot be distinguished even in close range observation, and the single-color fibers have fine and smooth layering sense and unique visual style.

Drawings

Fig. 1 and 2 are top and bottom views, respectively, of the spinneret plate face in example 1;

fig. 3 and 4 are top and bottom views, respectively, of the spinneret plate face in example 2;

fig. 5 and 6 are top and bottom views, respectively, of the spinneret plate face in example 3;

FIG. 7 is a top view of the spinneret plate face of example 4;

fig. 8 and 9 are top and bottom views, respectively, of the spinneret plate face of example 5;

fig. 10 and 11 are top and bottom views, respectively, of the spinneret plate face of example 6;

fig. 12 and 13 are top and bottom views, respectively, of the spinneret plate face of example 7;

fig. 14 and 15 are top and bottom views, respectively, of the spinneret plate face of example 8;

fig. 16 and 17 are top and bottom views, respectively, of the spinneret plate face of example 9;

fig. 18 and 19 are top and bottom views, respectively, of the spinneret plate face of example 10;

fig. 20 and 21 are top and bottom views, respectively, of the spinneret plate face of example 11;

fig. 22 and 23 are top and bottom views, respectively, of the spinneret plate face of example 12;

fig. 24 and 25 are top and bottom views, respectively, of the spinneret plate face of example 13;

fig. 26 and 27 are top and bottom views, respectively, of the spinneret plate face of example 14;

fig. 28 and 29 are top and bottom views, respectively, of the spinneret plate face of example 15;

fig. 30 and 31 are top and bottom views, respectively, of the spinneret plate face of example 16;

fig. 32 and 33 are top and bottom views, respectively, of the spinneret plate face of example 17;

fig. 34 and 35 are top and bottom views, respectively, of the spinneret plate face of example 18;

fig. 36 and 37 are top and bottom views, respectively, of the spinneret plate face of example 19;

fig. 38 and 39 are top and bottom views, respectively, of the spinneret plate face of example 20;

fig. 40 and 41 are top and bottom views, respectively, of the spinneret plate face of example 21;

fig. 42 and 43 are top and bottom views, respectively, of the spinneret plate face of example 22;

fig. 44 and 45 are top and bottom views, respectively, of the spinneret plate face of example 23;

fig. 46 and 47 are top and bottom views, respectively, of the spinneret plate face of example 24;

FIG. 48 is a top view of the spinneret plate face of example 25;

fig. 49 is a top view of the spinneret plate face of example 26;

fig. 50 is a top view of the spinneret plate face of example 27;

FIG. 51 is a top view of the spinneret plate face of example 28;

fig. 52 and 53 are schematic views of a flow channel assembly of embodiment 13;

fig. 54 and 55 are schematic views of the flow channel assembly of embodiment 14;

fig. 56 and 57 are schematic views of a flow channel assembly of embodiment 16;

fig. 58 and 59 are schematic views of the flow passage assembly of embodiment 19;

fig. 60 and 61 are schematic views of a flow channel assembly of embodiment 1;

fig. 62 and 63 are top and bottom views of the spinneret plate face of example 30.

Detailed Description

The invention will be further illustrated with reference to specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.

Example 1

A process for preparing primary color matching yarn includes extruding the different color (black and white) melts from different spinneret holes on the same spinneret plate to obtain primary color matching yarn, feeding the different color melts into distribution plate through different melt runners, distributing the different color melts to different spinneret holes by distribution plate, and directly polymerizing the different color melts to obtain the same PET melts with the same material and circular cross section.

All spinneret orifices on the spinneret plate are arranged in a concentric circle shape, the arrangement of the spinneret orifices of two melts with different colors corresponding to spinning is shown in figures 1 and 2, the melts with different colors are distributed in a concentric circle shape, the melts with different colors respectively pass through the spinneret orifices on the circles arranged in the concentric circle shape, one circle has one color, one color corresponds to multiple circles, and the circles are alternated with the circles, A in figures 1 and 2 represents a black melt, and B is a white melt. The specific color arrangement is not limited to this, and the corresponding colors of two adjacent circles may be the same. The flow channel assembly is shown in fig. 60 and 61, and it can be seen from the figure that from inside to outside, odd circles share one flow channel, even circles share one flow channel, and the black melt A and the white melt B enter the spinneret holes of different circles through different flow channels.

The primary color matching yarn finally prepared is single in color, one bundle of the multifilament comprises primary color fibers of two different colors, the primary color fibers are monofilaments showing one color, the sections of the primary color fibers of the two different colors are the same, the filament number of each primary color fiber is 0.8dpf, and one bundle of the multifilament comprises more than 24 primary color fibers.

Example 2

A process for preparing primary color matching yarn includes extruding the melts with different colors (black and red) from different spinneret holes on the same spinneret plate to obtain primary color matching yarn, feeding the melts with different colors into distribution plate through different melt runners, and distributing the melts to different spinneret holes through distribution plate, wherein the melts with different colors are directly polymerized and are PBT melts with same material.

All spinneret orifices on the spinneret plate are arranged in a concentric circle, the arrangement of the spinneret orifices for spinning two melts with different colors is shown in figures 3 and 4, the melts with different colors are distributed in a concentric circle, the melts with different colors respectively pass through the spinneret orifices on the circles arranged in the concentric circle, one circle segment corresponds to different colors, the colors corresponding to the arc segments corresponding to the same central angle of the adjacent circles are different, A in figures 3 and 4 represents a black melt, B is a red melt, the section of the spinneret orifice A is circular, and the section of the spinneret orifice B is in a straight shape. The specific color arrangement is not limited to this, and at most, the colors corresponding to the arc segments corresponding to the same central angle of two adjacent circles are the same.

The finally prepared primary color matching silk is integrally single in color, a bundle of multi-filament contains primary color fibers of two different colors, the primary color fibers refer to monofilaments presenting one color, the sections of the primary color fibers of the two different colors are different, the monofilament fineness of the black fibers is 0.75dpf, the monofilament fineness of the red fibers is 0.72dpf, and the bundle of multi-filament contains more than 24 primary color fibers.

Example 3

A process for preparing primary color matching yarn includes extruding the different color (black and white) melts from different spinneret holes on the same spinneret plate to obtain primary color matching yarn, feeding the different color melts into distributing plate through different melt flow channels, and distributing the different color melts to different spinneret holes by distributing plate.

All spinneret orifices on the spinneret plate are arranged in a concentric circle, the arrangement of the spinneret orifices corresponding to spinning of two melts with different colors is shown in figures 5 and 6 and is in radiation distribution, the spinneret orifices corresponding to primary color fibers of each color are distributed on radial lines, one line corresponds to one color, one color corresponds to twelve lines, the adjacent lines correspond to different colors, A in figures 5 and 6 represents a black melt, B is a white melt, and all the spinneret orifices have the same cross section and are in a star shape. The specific color arrangement is not limited to this, and one color may correspond to one line, the colors corresponding to adjacent lines may be the same, and the colors corresponding to at most three adjacent lines are the same.

The finally prepared primary color matching silk is integrally single in color, a bundle of multifilament comprises primary color fibers of two different colors, the primary color fibers are monofilaments showing one color, the sections of the primary color fibers of the two different colors are the same, the filament number of each primary color fiber is 0.78dpf, and the bundle of multifilament comprises more than 24 primary color fibers.

Example 4

A process for preparing primary color matching yarn includes extruding the melts with different colors (red and yellow) from different spinneret holes on the same spinneret plate to obtain primary color matching yarn, passing the melts with different colors through different melt runners to a distributing plate, distributing the melts to different spinneret holes by the distributing plate, and directly polymerizing the melts with different colors to obtain the primary color matching yarn which is PP melt with same material.

All spinneret orifices on the spinneret plate are arranged in a concentric circle, the arrangement of the spinneret orifices corresponding to spinning of two melts with different colors is shown in figure 7 and is in radiation distribution, the spinneret orifices corresponding to primary color fibers of each color are distributed on radial lines, one line corresponds to two colors in sections, the colors corresponding to the corresponding positions of the corresponding lines are different, A in figure 7 represents red melt, B is yellow melt, the spinneret orifices A are in a straight line shape, and the spinneret orifices B are in a trilobal shape. The specific color arrangement is not limited to this, and the colors corresponding to the corresponding positions of the adjacent lines may be the same, and the colors corresponding to the corresponding positions of at most three adjacent lines are the same.

The finally prepared primary color matching silk is integrally single in color, a bundle of multi-filament contains primary color fibers of two different colors, the primary color fibers refer to monofilaments presenting one color, the sections of the primary color fibers of the two different colors are different, the monofilament fineness of the red fibers is 0.7dpf, the monofilament fineness of the yellow fibers is 0.68dpf, and the bundle of multi-filament contains more than 24 primary color fibers.

Example 5

A process for preparing primary color matching yarn includes extruding the melts with different colors (red and white) from different spinneret holes on the same spinneret plate to obtain primary color matching yarn, passing the melts with different colors through different melt runners to a distributing plate, distributing the melts to different spinneret holes by the distributing plate, and directly polymerizing the melts with different colors to obtain the primary color matching yarn which is PP melt with same material.

All spinneret orifices on the spinneret plate are arranged in a concentric circle, the arrangement of the spinneret orifices corresponding to spinning of two melts with different colors is shown in figures 8 and 9 and is distributed in blocks, the spinneret orifices corresponding to primary color fibers of each color are distributed in the blocks with the same shape, 2 blocks are provided in total, one block corresponds to one color, one color corresponds to one block, A in figures 8 and 9 represents a red melt, B is a white melt, and all the spinneret orifices have the same cross section and are Y-shaped. The specific color arrangement is not limited to this, and the number of blocks may be 3 or more, and the shape and size of the blocks may be different.

The finally prepared primary color matching silk is integrally single in color, a bundle of multifilament comprises primary color fibers of two different colors, the primary color fibers are monofilaments showing one color, the sections of the primary color fibers of the two different colors are the same, the filament number of each primary color fiber is 0.76dpf, and the bundle of multifilament comprises more than 24 primary color fibers.

Example 6

A process for preparing primary color matching yarn includes extruding different color (yellow and blue) melts from different spinneret holes on the same spinneret plate to obtain primary color matching yarn, feeding the different color melts into distribution plate through different melt runners, distributing the different color melts to different spinneret holes through the distribution plate, adding colored polymer slices into screw extruder to carry out melting to obtain the different color melts, setting each color melt to correspond to one screw extruder and one metering pump, and setting the different color melts to be PET melts with the same material.

All spinneret orifices on the spinneret plate are arranged in a square shape, the arrangement of the spinneret orifices corresponding to spinning by two melts with different colors is shown in figures 10 and 11, the spinneret orifices corresponding to primary color fibers with two different colors are distributed in concentric-like circles, the main difference between the concentric-like circles and the concentric circles is that each circle is in a rectangular shape, one circle corresponds to one color, one color corresponds to one circle or two circles, the colors of adjacent circles are different, A in figures 10 and 11 represents yellow melts, B represents blue melts, the cross sections of all the spinneret orifices are the same and are in a trilobal shape, but the cross section area of the spinneret orifice A is larger than that of the spinneret orifice B. The specific color arrangement is not limited to this, and the colors of adjacent circles may be the same, but at most two adjacent circles have the same corresponding color.

The finally prepared primary color matching yarn is single in color, a bundle of multi-filament yarns comprises primary color fibers of two different colors, the primary color fibers are monofilaments showing one color, the cross sections of the primary color fibers of the two different colors are the same, the monofilament fineness of the yellow fibers is 0.75dpf, the monofilament fineness of the blue fibers is 0.66dpf, and the bundle of multi-filament yarns comprises more than 24 primary color fibers.

Example 7

A process for preparing primary color matching yarn includes extruding the melts with different colors (white and red) from different spinneret holes on the same spinneret plate to obtain primary color matching yarn, feeding the melts with different colors into distribution plate through different melt flow passages, distributing the melts to different spinneret holes through distribution plate, adding the mixture of colorless polymer slices and toner into screw extruder for melting to obtain the melts with different colors, where each melt is corresponding to one screw extruder and one metering pump, the toner is inorganic pigment, and the melts with different colors are made of the same material and are PET-PA block copolymer melt.

All spinneret orifices on the spinneret plate are arranged in a square shape, the arrangement of the spinneret orifices corresponding to spinning of two melts with different colors is shown in figures 12 and 13, the spinneret orifices corresponding to primary color fibers with two different colors are distributed in a linear shape, namely, the spinneret orifices corresponding to the primary color fibers with all colors are distributed on mutually parallel straight lines, one straight line corresponds to one color, one color corresponds to a plurality of straight lines, the colors corresponding to adjacent straight lines are different, in figures 12 and 13, A represents a white melt, B is a red melt, and the cross sections of all the spinneret orifices are the same and are in a cross shape. The specific color arrangement is not limited to this, and the colors of the adjacent straight lines may be the same, but the colors corresponding to at most three adjacent straight lines are the same.

The finally prepared primary color matching silk is integrally single in color, a bundle of multifilament comprises primary color fibers of two different colors, the primary color fibers are monofilaments showing one color, the sections of the primary color fibers of the two different colors are the same, the filament number of each primary color fiber is 0.68dpf, and the bundle of multifilament comprises more than 24 primary color fibers.

Example 8

A process for preparing a primary coloured filament substantially as described in example 7, except that the alignment of the filaments is different and the relationship between the differently coloured melts and orifices on the filament is as shown in figures 14 and 15.

Example 9

A process for preparing primary color matching yarn includes extruding out the melts with different colors (white and red) from different spinneret holes on the same spinneret plate to obtain primary color matching yarn, feeding the melts with different colors into distribution plates through different melt flow passages, distributing the melts to different spinneret holes through the distribution plates, adding the mixture of colorless polymer slices and toner into a screw extruder for melting to obtain the melts with different colors, wherein each melt corresponds to one screw extruder and one metering pump, the toner is organic pigment, the melts with different colors are made of the same material and are the mixture of PET melt and PBT melt (mass ratio 1: 1).

All spinneret orifices on the spinneret plate are arranged in a diamond shape, the arrangement of the spinneret orifices corresponding to spinning of two melts with different colors is shown in figures 16 and 17, the spinneret orifices corresponding to primary color fibers with two different colors are distributed in concentric-like circles, the main difference between the concentric-like circles and the concentric circles is that the shape of each circle is a regular hexagon, one circle corresponds to one color, one color corresponds to two circles, the colors of adjacent circles are different, A in figures 16 and 17 represents white melt, B represents red melt, the spinneret orifices A are cross-shaped, the spinneret orifices B are trilobal, but the cross-sectional area of the spinneret orifices A is equal to that of the spinneret orifices B. The specific color arrangement is not limited to this, and the colors of adjacent circles may be the same, but at most two adjacent circles have the same corresponding color.

The finally prepared primary color matching silk is integrally single in color, a bundle of multifilament comprises primary color fibers of two different colors, the primary color fibers are monofilaments showing one color, the sections of the primary color fibers of the two different colors are different, the filament number of the primary color fibers is 0.72dpf, and the bundle of multifilament comprises more than 24 primary color fibers.

Example 10

A process for preparing primary color matching yarn includes extruding different color (black and red) melts from different spinneret orifices on the same spinneret plate to obtain primary color matching yarn, feeding the different color melts into distribution plates through different melt runners, distributing the different color melts to different spinneret orifices through the distribution plates, adding colorless polymer slices and toner mixture into a screw extruder to be fused to obtain the different color melts, wherein each color melt corresponds to one screw extruder and one metering pump, the toner is inorganic pigment, the different color melts are the same in material and are the mixture of PET melt and PET-PA block copolymer melt (mass ratio 1: 1).

All spinneret orifices on the spinneret plate are arranged in a diamond shape, the arrangement of the spinneret orifices corresponding to spinning of two melts with different colors is shown in figures 18 and 19, the spinneret orifices corresponding to primary color fibers with two different colors are distributed in a linear shape, namely, the spinneret orifices corresponding to the primary color fibers with all colors are distributed on mutually parallel straight lines, one straight line corresponds to one color, one color corresponds to a plurality of straight lines, the colors corresponding to adjacent straight lines are different, A in figures 18 and 19 represents a black melt, B represents a red melt, and the cross sections of all the spinneret orifices are the same and are in a trilobal shape. The specific color arrangement is not limited to this, and the colors of the adjacent straight lines may be the same, but the colors corresponding to at most three adjacent straight lines are the same.

The finally prepared primary color matching silk is integrally single in color, a bundle of multifilament comprises primary color fibers of two different colors, the primary color fibers are monofilaments showing one color, the sections of the primary color fibers of the two different colors are the same, the filament number of each primary color fiber is 0.75dpf, and the bundle of multifilament comprises more than 24 primary color fibers.

Example 11

A process for preparing a primary coloured filament substantially as described in example 10, except that the alignment of the filaments is different and the relationship between the differently coloured melts and orifices on the filament is as shown in figures 20 and 21.

Example 12

A process for preparing primary color matching yarn includes extruding different color (black and yellow) melts from different spinneret orifices on the same spinneret plate to obtain primary color matching yarn, feeding the different color melts into distribution plate through different melt flow passages, distributing the different color melts to different spinneret orifices through the distribution plate, adding colorless polymer slices and toner mixture into screw extruder for melting to obtain different color melts, where each color melt is corresponding to one screw extruder and one metering pump, the toner is organic pigment, the different color melts are different in material, the black melt is PET melt, and the yellow melt is PBT melt.

All spinneret orifices on the spinneret plate are arranged in a straight line, the arrangement of the spinneret orifices corresponding to spinning of two melts with different colors is shown in figures 22 and 23, the spinneret orifices corresponding to primary color fibers with two different colors are distributed in a linear manner, namely, the spinneret orifices corresponding to the primary color fibers with all colors are distributed on mutually parallel straight lines, one straight line corresponds to one color, one color corresponds to a plurality of straight lines, the colors corresponding to adjacent straight lines are different, A in figures 22 and 23 represents a black melt, B represents a red melt, and the cross sections of all the spinneret orifices are the same and are circular. The specific color arrangement is not limited to this, and the colors of the adjacent straight lines may be the same, but the colors corresponding to at most three adjacent straight lines are the same. The arrangement of the orifices of this example can also be considered as a combination of an overall square arrangement and a linear distribution of the orifices of each color.

The primary color matching yarn finally prepared is single in color, one bundle of the multifilament comprises primary color fibers of two different colors, the primary color fibers are monofilaments showing one color, the sections of the primary color fibers of the two different colors are the same, the filament number of each primary color fiber is 0.78dpf, and one bundle of the multifilament comprises more than 24 primary color fibers.

Example 13

A process for preparing a primary coloured yarn, the process being substantially the same as that of example 1, except that the holes in this example correspond to black, white and red melts, wherein the black and white melts are PET melts, the red melt is PBT melt, the three different coloured melts correspond to the arrangement of the holes in the spun yarn as shown in FIGS. 24 and 25, in which A represents the black melt, B represents the white melt, and C represents the red melt. The flow passage assembly is shown in fig. 52 and 53, and it can be seen from the figure that the innermost ring and the outermost ring share a flow passage, the two rings at the middle share a flow passage, and the other two rings share a flow passage.

The primary color matching yarn finally prepared is single in color, one bundle of multifilament comprises primary color fibers of three different colors, the sections of the primary color fibers of the three different colors are the same, and the filament number of the primary color fibers is 0.80 dpf.

Example 14

A process for preparing a primary coloured yarn, the process being substantially the same as that of example 3, except that the holes in this example correspond to a black, yellow and white melt, wherein the black and white melts are PTT melts, the yellow melt is a PBT melt, the three different coloured melts correspond to the arrangement of the holes in the spun yarn as shown in FIGS. 26 and 27, in which A represents the black melt, B represents the yellow melt, and C represents the white melt. The flow channel assembly used is shown in fig. 54 and 55.

The primary color matching yarn finally prepared is single in color, one bundle of multifilament comprises primary color fibers of three different colors, the sections of the primary color fibers of the three different colors are the same, and the filament number of the primary color fibers is 0.78 dpf.

Example 15

A process for preparing a primary color-matching yarn, which has substantially the same steps as those of example 5, except that the spinneret holes of this example correspond to three colors of black, blue and white melts, wherein the black and blue melts are PP melts, the yellow melt is a PET-PA block copolymer melt, the three different colors of melts correspond to the arrangement of the spinneret holes for spinning as shown in FIGS. 28 and 29, the distribution plate is divided into three blocks having the same shape, block A in FIGS. 28 and 29 represents a black melt, block B is a blue melt, and block C is a white melt.

The primary color matching yarn finally prepared is single in color, one bundle of multifilament comprises primary color fibers of three different colors, the sections of the primary color fibers of the three different colors are the same, and the filament number of the primary color fibers is 0.76 dpf.

Example 16

The preparation process of primary color matching filament includes the same steps as in example 6, except that the spinneret holes in this example correspond to three color melts of black, blue and green, wherein the black and blue melts are PET melts, the green melt is PTT melt, the three different color melts correspond to the arrangement of the spinneret holes in the spinning as shown in FIGS. 30 and 31, the three circles are different in color, A in FIGS. 30 and 31 represents the black melt, B represents the blue melt, C represents the green melt, the cross sections of all the spinneret holes are the same and are all cross-shaped, and the cross section area of the spinneret hole B is smaller than that of the spinneret hole A and larger than that of the spinneret hole C. The flow channel assembly used is shown in fig. 56 and 57.

The finally prepared primary color matching yarn is single in color, one bundle of multifilament comprises primary color fibers of three different colors, the cross sections of the primary color fibers of the three different colors are the same, the filament number of the black fiber is 0.75dpf, the filament number of the blue fiber is 0.72dpf, and the filament number of the green fiber is 0.70 dpf.

Example 17

A process for preparing a primary colored yarn, the process comprising substantially the same steps as in example 7, except that the spinneret holes of this example correspond to three colors of black, white and green melts, wherein the black and white melts are PET-PA block copolymer melts, the green melt is PET melt, the three different colors of melts correspond to the arrangement of the spinneret holes for spinning as shown in FIGS. 32 and 33, A represents the black melt, B represents the white melt, C represents the green melt, and all the spinneret holes have the same cross section and are circular.

The primary color matching yarn finally prepared is single in color, one bundle of multifilament comprises primary color fibers of three different colors, the sections of the primary color fibers of the three different colors are the same, and the filament number of the primary color fibers is 0.70 dpf.

Example 18

A process for preparing a primary coloured filament substantially as described in example 17, except that the distribution plate has a different linear orientation, and the distribution plate has a different colour of melt corresponding to the orifices as shown in figures 34 and 35.

Example 19

A process for preparing a primary coloured yarn, the process being substantially the same as that of example 9, except that the orifices in this example correspond to melts of three colours black, white and green, wherein the black and white melts are PET melts, the green melt is PBT melt, the three melts of different colours correspond to the arrangement of the orifices for spinning as shown in fig. 36 and 37, a in fig. 36 and 37 represents the black melt, B is the white melt, C is the green melt, the orifices A, B and C have different cross-sectional shapes, respectively cross-shaped, in-line and circular, but the cross-sectional areas of all the orifices are equal. The arrangement mode of the spinneret orifices of each color in the embodiment can also be regarded as the combination of concentric circle distribution and quasi-concentric circle distribution, the spinneret orifices of the innermost circle are positioned on a concentric circle, namely the concentric circle distribution, and the spinneret orifices of other circles are positioned on a regular hexagon and can be regarded as the quasi-concentric circle distribution. The flow channel assembly used is shown in fig. 58 and 59.

The primary color matching yarn finally prepared is single in color, one bundle of multifilament comprises primary color fibers of three different colors, the sections of the primary color fibers of the three different colors are different, and the filament number of the primary color fibers is 0.74 dpf.

Example 20

A process for preparing a primary coloured yarn, the process comprising substantially the same steps as in example 10, except that the holes in this example correspond to black, white and red melts, wherein all melts are PET melts, the arrangement of the holes for spinning the three different melts is shown in fig. 38 and 39, wherein a in fig. 38 and 39 represents a black melt, B represents a white melt, C represents a red melt, and all holes have the same cross-section and are trilobal.

The primary color matching yarn finally prepared is single in color, one bundle of multifilament comprises primary color fibers of three different colors, the sections of the primary color fibers of the three different colors are the same, and the filament number of the primary color fibers is 0.75 dpf.

Example 21

A process for preparing a primary coloured filament substantially as described in example 20, except that the alignment of the filaments is different and the relationship between the differently coloured melts and orifices on the filament is as shown in figures 40 and 41.

Example 22

A process for preparing primary color matching yarn includes extruding white, red and yellow melts from different spinneret holes on the same spinneret plate to obtain primary color matching yarn, feeding the melts with different colors into distribution plate through different melt runners, distributing the melts to different spinneret holes through the distribution plate, and directly polymerizing the melts with different colors to obtain different color melts with different materials.

All spinneret orifices on the spinneret plate are arranged in a diamond shape, the arrangement of the spinneret orifices of the three melts with different colors corresponding to spinning is shown in figures 42 and 43 and is distributed in blocks, the spinneret orifices corresponding to primary color fibers of each color are distributed in the blocks with the same shape, 3 blocks are provided in total, one block corresponds to one color, one color corresponds to one block, A in figures 42 and 43 represents a red melt, B represents a white melt, C represents a yellow melt, and the cross sections of all the spinneret orifices are the same and are all in a cross shape.

The primary color matching yarn finally prepared is single in color, one bundle of multifilament comprises primary color fibers of three different colors, the sections of the primary color fibers of the three different colors are the same, and the filament number of the primary color fibers is 0.72 dpf.

Example 23

A process for preparing a primary coloured yarn, the process comprising substantially the same steps as in example 12, except that the holes in this example correspond to black, yellow and red melts, wherein all melts are PBT melts, the arrangement of the holes for spinning the three different coloured melts is shown in fig. 44 and 45, wherein a in fig. 44 and 45 represents a black melt, B represents a yellow melt, C represents a red melt, and all holes have the same cross-section and are circular.

Example 24

A process for preparing primary color matching yarn includes extruding white, black and yellow melts from different spinneret orifices on the same spinneret plate to obtain primary color matching yarn, feeding the melts with different colors into distribution plate through different melt runners, distributing the melts to different spinneret orifices through the distribution plate, and directly polymerizing the melts with different colors, wherein the white melt and the red melt are PP melts and the black melt is PTT melt.

All spinneret orifices on the spinneret plate are uniformly arranged in a subarea mode and are divided into three blocks with the same shape and size, the blocks are different in corresponding color, the arrangement of the spinneret orifices of the three melts with different colors corresponding to spinning is shown in figures 46 and 47, A in figures 46 and 47 represents a black melt, B represents a white melt, C represents a yellow melt, the spinneret orifices of the three melts with different colors corresponding to spinning are distributed in concentric circles, the spinneret orifices corresponding to primary-color fibers of all colors are distributed in the concentric circles, and the sections of all the spinneret orifices are the same and are in a straight shape. The arrangement of the spinneret orifices in this example can also be understood as an overall concentric circular arrangement, with the spinneret orifices of each color being arranged in zones.

The primary color matching yarn finally prepared is single-pattern-colored, one bundle of multifilament comprises primary color fibers of three different colors, the sections of the primary color fibers of the three different colors are the same, and the filament number of each primary color fiber is 0.72 dpf.

Example 25

A process for preparing a primary coloured filament, which comprises the same steps as in example 16, except that one turn of the filament is divided into four sections corresponding to different colours, the colours of the adjacent sections are different, the corresponding positions of the adjacent turns are different, the corresponding relationship between the melts with different colours and the spinneret holes on the spinneret plate is shown in fig. 48, the specific colour arrangement is not limited thereto, the corresponding colours of the corresponding positions of the adjacent turns can be the same, but the corresponding colours of the corresponding positions of at most two adjacent turns are the same.

Example 26

A process for preparing a primary coloured yarn, the process comprising the steps substantially the same as in example 19, except that one turn of the primary coloured yarn is divided into three segments corresponding to different colours, the colours of adjacent segments are different, the colours corresponding to the corresponding positions of adjacent turns (the corresponding segments of the same central angle of the circumscribed circle of each turn) are different, the corresponding relationship between the melts of different colours and the spinneret holes on the spinneret plate is shown in fig. 49, the specific colour arrangement is not limited thereto, the colours corresponding to the corresponding positions of adjacent turns (the corresponding segments of the same central angle of the circumscribed circle of each turn) can be the same, but the colours corresponding to the corresponding positions of at most two adjacent turns are the same.

Example 27

A process for preparing a primary coloured yarn, which comprises the steps substantially the same as those of example 20, except that a straight line is divided into two sections corresponding to different colours, and the colours corresponding to the positions of adjacent straight lines are different. The corresponding relationship between the melts with different colors and the spinneret orifices on the spinneret plate is shown in fig. 50, the specific color arrangement is not limited to this, and the colors corresponding to the corresponding positions of the adjacent straight lines can be the same, but the colors corresponding to the corresponding positions of at most three adjacent straight lines are the same.

Example 28

A process for preparing primary color matching yarn includes extruding white, red and yellow melts from different spinneret orifices on the same spinneret plate to obtain primary color matching yarn, feeding the melts with different colors into distribution plate through different melt runners, distributing the melts to different spinneret orifices through the distribution plate, and directly polymerizing the melts with different colors to obtain different color melts with different materials, wherein the white melt and the red melt are PP melts and the yellow melt is PTT melt.

All spinneret holes on a spinneret plate are arranged in a diamond shape, three melts with different colors are correspondingly arranged in the spinneret holes for spinning as shown in figure 51 and are distributed in a combined manner, the inner ring of the spinneret plate is distributed in a concentric circle mode, one circle is formed, one circle corresponds to one color, the outer ring of the spinneret plate is distributed in a concentric circle-like mode, the concentric circle-like mode and the concentric circle-like mode are mainly different in that the shape of each circle is regular hexagon, one circle corresponds to one color, one color corresponds to one circle or two or more circles, the colors corresponding to adjacent circles are different, in figure 51, A represents a red melt, B represents a white melt, C represents a yellow melt, and the cross sections of all the spinneret holes are the same and are Y.

Example 29

A process for producing a primary colored yarn, which comprises the steps substantially the same as those of example 28, except that the spinneret hole diameter is larger than that of example 28, and the filament number of the finally produced primary colored fiber is 1dpf, the finally produced primary colored yarn is a colored yarn by visual observation, and the primary colored yarn produced by example 28 is a uniform colored yarn by visual observation because the filament number of the primary colored fiber is small.

Example 30

A process for preparing primary colored yarns, the process comprising the steps substantially the same as those of example 1, except that the spinneret holes of the present example correspond to five colors of black, white, red, green and cyan, wherein all the melts are PET melts, the arrangement of the spinneret holes of the five different colors of melts corresponding to the spinning is shown in FIGS. 62 and 63, A represents a black melt, B represents a white melt, C represents a red melt, D represents a green melt, and E represents a cyan melt. The flow channel assembly used is substantially the same as the flow assembly shown in fig. 52 and 53, except that it has a total of 5 flow channels, wherein the innermost and outermost turns share one flow channel, and the other turns correspond to one flow channel, respectively.

The primary color matching yarn finally prepared is single in color, one bundle of multifilament comprises five primary color fibers with different colors, the sections of the five primary color fibers with different colors are the same, and the filament number of the primary color fibers is 0.80 dpf.

Example 31

A process for preparing a primary coloured yarn, which comprises the steps substantially the same as those of example 23, except that three melts of different colours are arranged in rows of spinneret holes corresponding to spinning, the correspondence between the rows of spinneret holes from top to bottom being as follows: A. a, A, A, B, B, C, C, C, C, C, A, B, B, B are provided. Wherein the cross-sectional shapes and sizes of the spinneret orifices are the same, and the filament titer of the obtained primary color fibers is 0.75 dpf.

The finally prepared primary color matching silk is color matching silk, and one bundle of multifilament contains primary color fibers of three different colors.

Example 32

A process for preparing a primary coloured yarn, the steps of which are substantially the same as in example 17, except that the arrangement of spinneret holes for spinning three melts of different colours is combined and distributed, the arrangement of the spinneret holes in the first to sixth rows and the fifteenth row from top to bottom is in linear distribution as in example 17, the colours of the spinneret holes in the seventh to fourteenth rows are divided into two sections in linear distribution (XM), the seventh row is divided into a and B from left to right, the eighth row is divided into B and C from left to right, the ninth row is divided into C and a from left to right, the tenth row is divided into a and B from left to right, the eleventh row is divided into B (2 holes) and C (3 holes) from left to right, the twelfth row is divided into a and B (1 hole) and C (2 holes) from left to right, and the fourteenth row is divided into C and a from left to right.

Claims

1. The primary color matching silk is characterized in that: the primary color matching silk is a bundle of multifilament formed by melt spinning and contains more than two primary color fibers with different colors; the bundle of multifilaments comprises more than 24 primary-color fibers; the primary color fiber is a monofilament with a single color, and the color of the monofilament cannot be distinguished by naked eyes; the filament number of the primary color fibers is less than or equal to 0.8 dpf; the primary color fibers with the same color in the primary color matching silk are not aggregated to form a color which can be distinguished by naked eyes; the primary color matching silk is single color;

all spinneret orifices on the spinneret plate for melt spinning are uniformly distributed and arranged in a concentric circle shape, a square shape, a diamond shape, a straight shape or a subarea shape, wherein the spinneret orifices corresponding to more than two primary color fibers with different colors are distributed in a concentric circle shape, a radiation shape, a similar concentric circle shape, a linear shape, a block shape or a combination shape;

2. The primary colored yarn according to claim 1, wherein the primary colored fibers of the two or more different colors have the same or different cross sections.

3. The primary colored yarn according to claim 1, wherein the primary colored fibers of the two or more different colors have equal or different single-filament deniers.

4. The primary colored yarn according to claim 1, wherein the two or more primary colored fibers of different colors are made of the same or different material, and are selected from the group consisting of PET, PBT, PP, PTT, and modified polyester.

5. A process for preparing a primary coloured yarn as claimed in any one of claims 1 to 4, characterised in that: and respectively extruding melts with different colors from different spinneret orifices on the same spinneret plate to prepare the primary color matching filaments, wherein the number of the spinneret orifices is more than 24, the filament number of fibers extruded from each spinneret orifice is controlled to be less than or equal to 0.8dpf, and the fibers with the same color extruded from different spinneret orifices are controlled not to be aggregated to form the color which can be distinguished by naked eyes.

6. The process of claim 5, wherein the melts of different colors are metered by different metering pumps, enter the distribution plate through different melt flow passages, and are distributed to different spinneret holes by the distribution plate.

7. The process according to claim 5, wherein the melt of different colors is a melt directly conveyed after polymerization, or a melt obtained after melting a colored polymer chip or a mixture of a colorless polymer chip and a toner.