Embroidery method for realizing gradient color effect by mixing mulberry silk threads based on color separation proportion

Abstract

The invention relates to an embroidery method for realizing a gradient color effect by mixing mulberry silk threads based on a color separation ratio, which is characterized in that an embroidery thread consists of a plurality of strands of silk threads with the same hue or a plurality of strands of silk threads with different hues, each strand of silk threads is formed by mixing a plurality of silk threads with the same hue and different lightness in parallel or slightly twisting according to a preset lightness ratio, the silk threads with the same hue in each strand are divided into a dark color, an intermediate color, a light color and a highlight color from dark to bright according to different lightness. According to the embroidering method, the whole embroidering pattern is divided into three embroidering layers, namely a bottom layer, a middle layer and an upper layer, and silk threads with different preset brightness proportions are adopted for each layer. According to the invention, the characteristic that the mulberry silk threads have luster is utilized, and under the action of natural law of light reflection, the problem that a suitable gradient color embroidery effect does not exist in the Suzhou embroidery field for a long time is solved by combining multi-color combination and different brightness proportion changes of colors in different embroidery layers.

Description

Technical Field

[0001] The invention belongs to the field of embroidery, relates to an embroidery method, and particularly relates to an embroidery method for achieving a gradient color effect by mixing mulberry silk threads based on a color separation ratio. Background Art

[0002] Embroidery is a craft that uses an embroidery needle to guide the embroidery thread, and embroiders on the embroidery base material according to a pre-designed pattern, and finally forms a pattern with embroidery marks. The so-called embroidery thread is typically mulberry silk thread, which is characterized by its glossy appearance. The so-called embroidery base material refers to the fabric used for embroidery, which is usually a soft elastic textile fabric. In the past existing technology, the commonly used embroidery base materials include cloth, silk, satin, gauze and other fabrics.

[0003] Embroidery has a history of more than 2,000 years in my country. Among them, Suzhou embroidery is one of China's "Four Famous Embroideries" and one of the national intangible cultural heritages. Traditional Suzhou embroidery uses mulberry silk thread as embroidery thread, with a variety of needlework, and the embroidery skills are characterized by "flat, neat, fine, dense, harmonious, bright, smooth, and uniform". Among them, "flat" refers to the flatness of the embroidery surface; "neat" refers to the neat edges of the pattern; "fine" refers to the delicate needlework and fine embroidery thread; "dense" refers to the compact arrangement of lines without revealing needle marks; "harmonious" refers to the appropriate color setting; "bright" refers to dazzling and bright colors; "smooth" refers to the smooth and round silk; "even" refers to the fine and uniform lines, with consistent density. Suzhou embroidery has a unique style with beautiful patterns, ingenious ideas, meticulous embroidery, lively needlework, and elegant colors, and has a strong local flavor. The main artistic characteristics of Suzhou embroidery works are: the landscape can distinguish the interest of distance; the pavilions have a profound body; the figures can have a vivid feeling of looking forward; the flowers and birds can show a graceful and intimate state. Suzhou embroidery's imitation painting embroidery and portrait embroidery are famous all over the world for their realistic artistic effects.

[0004] In the field of embroidery, different embroidery methods have different characteristics and produce different embroidery effects, but at present, there is no embroidery method in Suzhou embroidery that can express gradient color effects. This makes Suzhou embroidery's expression methods still have certain limitations, especially it is impossible to embroider the shimmer and dynamic gradient effects similar to the skin of a chameleon, nor can it embroider patterns or pictures with the texture of impressionist oil paintings.

[0005] In view of this, how to innovate an embroidery method that can express a gradient color effect is the research topic of the present invention. Summary of the invention

[0006] The invention provides an embroidery method for achieving a gradient color effect by mixing mulberry silk threads based on a color separation ratio, and aims to solve the problem that there is no suitable embroidery effect for expressing gradient color in the field of Suzhou embroidery for a long time.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an embroidery method for achieving a gradient color effect by mixing mulberry silk threads based on a color separation ratio. The method uses an embroidery needle and embroidery thread to embroider a pre-made pattern on an embroidery base material according to a pre-planned embroidery method, so as to form an embroidery pattern with a gradient color effect with embroidery marks.

[0008] Its innovation lies in: The embroidery thread is composed of multiple strands of silk threads of the same hue or different hues, wherein each strand is composed of a number of silk threads of the same hue but different brightness, which are mixed and arranged in parallel or lightly twisted in a predetermined brightness ratio, and the silk threads of the same hue in each strand are divided into four types according to different brightness from dark to light, namely dark color, middle color, light color and highlight color.

[0009] In embroidery, in the stitches formed by the same needle and thread, there are multiple strands of silk threads with the same hue and a mixture of different brightness in each strand, or multiple strands of silk threads with different hues and a mixture of different brightness in each strand. In this way, each stitch has the same hue with a color showing a different brightness variation, or a different hue with a color showing a different brightness variation, so as to achieve microscopic color gradient.

[0010] The embroidery method is to divide the entire embroidery pattern into three embroidery layers, namely, a bottom layer, a middle layer, and an upper layer, and embroider them in sequence, and use silk threads with different predetermined brightness ratios for each layer.

[0011] (1) Bottom layer embroidery: The bottom layer is the outline layer of the embroidery pattern. After the hue of the embroidery thread is selected during embroidery, the brightness of the embroidery thread is mainly dark, mixed with a small amount of intermediate color and a very small amount of light color, and the random stitch direction and length of the random needle embroidery needle method are used to outline the outline and shadow tone of the pattern on the embroidery base material.

[0012] The predetermined lightness ratios used in the bottom embroidery threads are as follows: The number of dark silk threads accounts for 60% to 70% of the total number of silk threads per strand, and is used to establish the tone of shadows and contours; The number of intermediate color threads accounts for 20% to 30% of the total number of threads per thread, providing a buffer color scale for subsequent gradients. The number of light-colored and / or high-gloss colored silk threads accounts for 0-10% of the total number of silk threads per strand, and is used to break excessive dullness and give the bottom layer slight color fluctuations.

[0013] (2) Middle layer embroidery: The middle layer is the coloring layer of the embroidery pattern. After the hue of the embroidery thread is selected during embroidery, the ratio of the intermediate color to the highlight color is increased, and it is superimposed on the base layer with random needle embroidery technique. The stitches are kept loose to allow the dark color of the base layer to pass through to form a soft gradient, so that the overall tone transitions to a rich and light color gradient.

[0014] The predetermined brightness ratio of the embroidery thread used in the middle layer embroidery is as follows: The number of intermediate color threads accounts for 50% to 60% of the total number of threads per thread. At this time, the proportion of intermediate color is increased relative to that of the intermediate color in the bottom layer, making the bottom dark color appear vaguely. The number of light-colored threads accounts for 30% to 40% of the total number of threads per thread, providing a significant gradient. The number of highlight-colored silk threads accounts for 5% to 10% of the total number of silk threads per share, and they serve as middle embellishments to lay the foundation for the upper highlight layer.

[0015] (3) Upper embroidery: The upper layer is the embellishment layer of the embroidery pattern. When embroidering, after the hue of the embroidery thread is selected, the ratio of light color to highlight color is increased, and the key details are embroidered with short and scattered random stitches to create a dynamic gradient effect with shimmering light.

[0016] The predetermined lightness ratios used in the upper embroidery threads are as follows: The number of light-colored and high-gloss colored silk threads accounts for 45% to 55% of the total number of silk threads per strand, which enhances the local highlights and surface flashes. The number of intermediate color threads accounts for 35% to 45% of the total number of threads per thread, so that the highlights are not too abrupt and smoothly connect with the middle color. The number of dark silk threads accounts for 5% to 10% of the total number of silk threads per strand, which is used to increase subtle contrast and maintain overall color balance.

[0017] In short, the superposition of the bottom layer, the middle layer and the upper layer makes the dark color, the intermediate color, the light color and the highlight color mixed at the micro level, and shows the natural and smooth gradient color and delicate light and shadow change effect at the macro level.

[0018] The relevant contents in the above technical solution are explained as follows: 1. In the above scheme, the "embroidery base material" refers to the embroidery material used in embroidery, also known as embroidery cloth, which is usually a soft elastic textile fabric. In the present invention, the embroidery base material can be transparent, translucent or opaque fabric.

[0019] 2. In the above scheme, the "needle method" refers to the needle movement method in embroidery, and is also the organizational form of stitches in embroidery. The "stitch" refers to a line of embroidery thread embroidered between two needle holes.

[0020] 3. In the above scheme, although the bottom layer, the middle layer and the upper layer are only three embroidery layers in terms of quantity, the distinction and concept of layers in embroidery are not very strict. As for the bottom layer, it can actually be divided into multiple layers, and the same is true for the middle layer and the upper layer, which can be further divided into multiple layers. The present invention divides the embroidery into layers and summarizes them into three layers: the bottom layer, the middle layer and the upper layer. This is examined from the perspective of the overall embroidery process technology, and is distinguished in combination with the phased goals of the embroidery pattern of the present invention, that is, the bottom layer is the outline layer of the embroidery pattern, the middle layer is the coloring layer of the embroidery pattern, and the upper layer is the embellishment layer of the embroidery pattern. This also shows that the bottom layer, the middle layer and the upper layer of the present invention are a relative layering, not an absolute three-layer superposition, which is understandable and known to technicians in the embroidery field.

[0021] 4. In the above scheme, the hue refers to the name that can more accurately represent the color of a certain color. Hue is the primary characteristic of color and the most accurate standard for distinguishing different colors. It is one of the three elements of color, namely, color appearance. In the present invention, the hue of the silk thread can be divided into primary color and secondary color.

[0022] 5. In the above scheme, the brightness refers to the degree of lightness or darkness of a color. Brightness is also the eye's sense of the degree of lightness or darkness of a light source and the surface of an object, and is a visual experience mainly determined by the intensity of light. Generally speaking, the stronger the light, the brighter it looks; the weaker the light, the darker it looks. On the other hand, dark and light are different terms that describe the degree to which an object's surface reflects or emits light. In color science, the depth of a color is related to the hue and lightness it contains. Usually, dark colors have the lowest lightness and are the darkest colors; light colors have the highest lightness and are the brightest colors; and intermediate colors have a lightness somewhere in between.

[0023] 6. In the above solution, the highlight color refers to a color whose brightness exceeds the average brightness of the overall embroidery pattern plus one standard deviation. In the present invention, from the perspective of brightness, the highlight color has a higher brightness than the light color.

[0024] 7. In the above scheme, after the upper layer embroidery is completed, detail adjustment processing is then carried out. The detail adjustment processing is fine-tuned by the local color gradient transition through the patch embroidery method according to the overall look and feel, and the stitch density of a certain color system is appropriately increased or decreased to ensure that the colors of each layer are naturally connected and the layers are rich.

[0025] 8. In the above scheme, the basic unit of the random needle embroidery method is composed of two stitches, wherein the two stitches are arranged crosswise or at an angle. The stitch length of the random needle embroidery method used in the middle layer and the upper layer adopts medium stitches or / and short stitches, the length of the medium stitch is 14±3mm, the length of the short stitch is 7±3mm, and the relative crossing angle between the two stitches is in the range of 10°-75°.

[0026] 9. The above scheme is not only suitable for hand embroidery, but also suitable for industrial mass production of machine embroidery (machine embroidery). When using machine embroidery, all the needle movements of the present invention can be converted into points and orders in plane coordinates, and then the embroidery machine can be programmed to complete it. It can be seen that the technical solution of the present invention has practicality in the sense of patent law.

[0027] Principle and effect of the present invention: Embroidery is different from painting. It is a process technology that uses embroidery needles to guide embroidery threads, embroiders on embroidery cloth according to the design pattern, and finally forms a pattern with embroidery traces. Embroidery is a method of embroidering patterns on embroidery cloth using embroidery needles and embroidery threads, using one or more needle techniques, wherein the needle technique refers to the needle method in embroidery, and is also the organizational form of the stitches in embroidery. The stitch is a section of embroidery thread between two needle eyes. In Suzhou embroidery, no matter what kind of needle technique and embroidery method are used, the embroidery thread uses silk thread, that is, mulberry silk thread, which is a glossy line, which is a natural law known to everyone. Suzhou embroidery uses the natural law that silk thread has gloss to produce different light and shadow effects through changes in the stitch organization form. It can be seen that the needle technique and embroidery method in embroidery are a kind of organizational form of arranging and combining the stitches of the stitches on the surface, but from a deeper level, it reflects the essence of utilizing natural laws. Although Suzhou embroidery ultimately expresses a kind of artistic work, it is undeniable that it contains technical components. To be precise, Suzhou embroidery is a comprehensive embodiment of art and technology. In order to solve the problem that there has been no suitable embroidery effect for gradient color in the field of Suzhou embroidery for a long time, the present invention utilizes the glossy characteristics of mulberry silk thread, combines multiple color combinations and changes in the different brightness ratios of colors in different embroidery layers under the natural law of light reflection, thereby achieving a gradient color effect. It can be seen that compared with the existing embroidery method, the present invention has a reasonable process design and ingenious technical conception, and is a bold and positive innovation and breakthrough in the field of embroidery. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Attached Figure 1 It is a practical effect diagram of chameleon embroidery according to an embodiment of the present invention.

[0029] Attached Figure 2 yes Figure 1 A partial enlarged view of . DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Embodiment: An embroidery method for achieving a gradient color effect by mixing mulberry silk threads in a color separation ratio.

[0031] This method is to use embroidery needles and embroidery threads to embroider pre-made patterns on embroidery base materials according to pre-planned embroidery methods, so as to form embroidery patterns with gradient color effects with embroidery marks.

[0032] See also Figure 1 and Figure 2 As shown, this embodiment is described by taking the embroidery of a chameleon.

[0033] Mulberry silk thread is chosen as the base material, as its natural luster and delicate texture are conducive to color superposition and dynamic changes under light. Figure 1 and Figure 2 The chameleon pattern and colors shown are prepared in multiple shades of silk thread.

[0034] The embroidery thread is composed of multiple strands of silk threads of different hues (it can also be composed of multiple strands of silk threads of the same hue according to the needs of the pattern and color, which can be understood by those skilled in the art). Among them, each strand is composed of a plurality of silk threads (for example, 10 strands) of the same hue but different lightness, mixed and arranged in parallel or lightly twisted according to a predetermined lightness ratio, and the silk threads of the same hue in each strand are divided into four types according to lightness from dark to light: dark color, middle color, light color, and highlight color.

[0035] In this example, the threads of different hues are, for example, green thread, blue thread, and red thread. The hue refers to a name that can more accurately represent the color of a certain color. Hue is the primary characteristic of color, the most accurate standard for distinguishing various colors, and one of the three elements of color, namely, color appearance. In the present invention, the hue of the thread can be selected as primary color and secondary color. The lightness refers to the brightness of the color. Lightness is also the eye's sense of the brightness of the light source and the surface of an object, a visual experience mainly determined by the intensity of light. Generally speaking, the stronger the light, the brighter it looks; the weaker the light, the darker it looks. On the other hand, dark and light are different terms that describe the degree of light reflection or emission from the surface of an object. In color science, the depth of a color is related to the hue and lightness it contains. Usually, dark colors have the lowest lightness and are the darkest colors; light colors have the highest lightness and are the brightest colors; and intermediate colors have a lightness between the two. The highlight color refers to a color whose brightness exceeds the average value of the overall brightness of the embroidery pattern plus one standard deviation. In the present invention, from the perspective of brightness, the highlight color has a higher brightness than the light color.

[0036] In the embroidery of the present embodiment, since there are multiple strands of silk threads of the same hue and different brightness mixed in each strand, or multiple strands of silk threads of different hues and different brightness mixed in each strand, in the stitches formed by the same needle and thread on the embroidery mark, in this way, each stitch has the same hue with a color showing a different brightness change, or a different hue with a color showing a different brightness change, so as to realize micro color gradient.

[0037] The embroidery method is to divide the entire embroidery pattern into three embroidery layers, namely, a bottom layer, a middle layer, and an upper layer, and embroider them in sequence, and use silk threads with different predetermined brightness ratios for each layer.

[0038] (1) Bottom layer embroidery: The bottom layer is the outline layer of the embroidery pattern. When embroidering, after the hue of the embroidery thread is selected, the lightness of the embroidery thread is mainly dark, and a small amount of intermediate color and a very small amount of light color are mixed with silk thread. The random stitch direction and length of the random stitch method are used to outline the outline and shadow tone of the pattern on the embroidery base material. In this way, not only can the outline and color tone of the pattern be initially constructed, but the stitch direction can be relatively random, but it can be kept relatively compact, so that the dark color forms the basis of the shadow.

[0039] The predetermined lightness ratios used in the bottom embroidery threads are as follows: The number of dark silk threads accounts for 60% to 70% of the total number of silk threads per strand, and is used to establish the tone of shadows and contours; The number of intermediate color threads accounts for 20% to 30% of the total number of threads per thread, providing a buffer color scale for subsequent gradients. The number of light-colored and / or high-gloss colored silk threads accounts for 0-10% of the total number of silk threads per strand, and is used to break excessive dullness and give the bottom layer slight color fluctuations.

[0040] (2) Middle layer embroidery: The middle layer is the coloring layer of the embroidery pattern. After the hue of the embroidery thread is selected during embroidery, the ratio of the intermediate color to the highlight color is increased, and it is superimposed on the base layer with random needle embroidery technique. The stitches are kept loose to allow the dark color of the base layer to pass through to form a soft gradient, so that the overall tone transitions to a rich and light color gradient.

[0041] The predetermined brightness ratio of the embroidery thread used in the middle layer embroidery is as follows: The number of intermediate color threads accounts for 50% to 60% of the total number of threads per thread. At this time, the proportion of intermediate color is increased relative to that of the intermediate color in the bottom layer, making the bottom dark color appear vaguely. The number of light-colored threads accounts for 30% to 40% of the total number of threads per thread, providing a significant gradient. The number of highlight-colored silk threads accounts for 5% to 10% of the total number of silk threads per share, and they serve as middle embellishments to lay the foundation for the upper highlight layer.

[0042] In this way, the middle layer becomes a transition bridge between the dark bottom layer and the bright upper layer. At the same time, the randomness of the random needle embroidery technique allows the dark color of the bottom layer to appear through the needle gaps, forming a soft gradient.

[0043] (3) Upper embroidery: The upper layer is the embellishment layer of the embroidery pattern. After the hue of the embroidery thread is selected, the ratio of light color to highlight color is increased, and the key details are embroidered with short and scattered random needle embroidery needlework to form a dynamic gradient effect with shimmering light. This layer of stitches is more free, and high-brightness lines can be added to the parts that need to be emphasized to form shimmering light and colorful details, making the embroidery work present a chameleon-like multi-dimensional gradient under different light and viewing angles.

[0044] The predetermined lightness ratios used in the upper embroidery threads are as follows: The number of light-colored and high-gloss colored silk threads accounts for 45% to 55% of the total number of silk threads per strand, which enhances the local highlights and surface flashes. The number of intermediate color threads accounts for 35% to 45% of the total number of threads per thread, so that the highlights are not too abrupt and smoothly connect with the middle color. The number of dark silk threads accounts for 5% to 10% of the total number of silk threads per strand, which is used to increase subtle contrast and maintain overall color balance.

[0045] In this embodiment, the predetermined brightness ratio setting of the bottom layer, middle layer and upper layer can achieve a natural transition from bottom to top, from dark to light, and from a single main color to multiple color levels. By using random needle embroidery with random directions and lengths in each layer, the colors are blended, the boundaries are blurred, and the layers are rich when stacked. The dark color ratio of each silk thread in the bottom embroidery thread is 60% to 70%, the intermediate color ratio of each silk thread in the middle embroidery thread is 50% to 60%, and the highlight color ratio of each silk thread in the upper embroidery thread is 45% to 55%, so as to increase the light color and highlight ratio layer by layer to achieve a gradual transition from dark to light. The superposition of the bottom layer, middle layer and upper layer makes the dark color, intermediate color, light color and highlight color mixed at the micro level, and shows a natural and smooth gradient color and delicate light and shadow change effect at the macro level.

[0046] After the upper layer embroidery is completed, detail adjustment processing is then carried out. The detail adjustment processing is fine-tuned on the local color gradient transition through mending embroidery according to the overall appearance, and the stitch density of a certain color system is appropriately increased or decreased to ensure that the colors of each layer are naturally connected and the layers are rich.

[0047] In this embodiment, a random needle embroidery needle method is used to make different colored silk threads present slight color differences in the same stitch, and multi-dimensional color gradient and gloss flashing are produced through multi-layer superposition. The basic unit of the random needle embroidery needle method is composed of two stitches, wherein the two stitches are crossed or arranged at an angle. The stitch length of the random needle embroidery needle method used in the middle layer and the upper layer is medium stitch and / or short stitch, the length of the medium stitch is 14±3mm, the length of the short stitch is 7±3mm, and the relative crossing angle between the two stitches is in the range of 10°-75°.

[0048] This embodiment is illustrated by the embroidery of a chameleon, but the present invention is not limited thereto. The present invention is applicable to bionic color texture expression, such as the colorful gradient effect of the chameleon's epidermis, or other advanced artistic embroidery creations that need to reflect complex color levels, gloss changes and texture transitions. The advantage of the present invention at the visual level is that it realizes a natural gradient from dark shadows to multi-color transitions, and finally to light colors and highlights at the macro level. At the micro level, since there are already a combination of multi-color silk threads in the same embroidery thread, each stitch has multiple colors, and rich mixed color levels and gloss changes are naturally formed when the threads are superimposed. It is suitable for expressing artistic embroidery works with high precision, rich color levels and texture details, such as the reproduction of complex bionic texture patterns such as chameleons.

[0049] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An embroidery method for achieving a gradient color effect based on mixing mulberry silk threads in a color separation ratio, the method comprising using an embroidery needle and embroidery thread to embroider a pre-made pattern on an embroidery base material according to a pre-planned embroidery method, and forming an embroidery pattern with a gradient color effect with embroidery traces; Features: The embroidery thread is composed of multiple strands of silk threads of the same hue or different hues, wherein each strand is composed of a plurality of silk threads of the same hue but different brightness, mixed and arranged in parallel or lightly twisted in a predetermined brightness ratio, and the silk threads of the same hue in each strand are divided into four types according to different brightnesses from dark to light, namely dark color, middle color, light color and highlight color; In embroidery, multiple strands of silk threads of the same hue and different brightnesses are simultaneously present in the stitches formed by the same needle and thread on the embroidery trace, or multiple strands of silk threads of different hues and different brightnesses are simultaneously present in each strand. In this way, each stitch has a color of the same hue with different brightnesses or a color of different hues with different brightnesses, so as to achieve microscopic color gradient; The embroidery method is to divide the entire embroidery pattern into three embroidery layers, namely, a bottom layer, a middle layer, and an upper layer, and embroider them in sequence, and use silk threads with different predetermined lightness ratios for each layer; (1) Bottom layer embroidery: The bottom layer is the outline layer of the embroidery pattern. When embroidering, after the hue of the embroidery thread is selected, the lightness of the embroidery thread is mainly dark, mixed with a small amount of intermediate color and a very small amount of light color, and the random stitch direction and length of the random needle embroidery needle method are used to outline the outline and shadow tone of the pattern on the embroidery base material; The predetermined lightness ratios used in the bottom embroidery threads are as follows: The number of dark silk threads accounts for 60% to 70% of the total number of silk threads per strand, and is used to establish the tone of shadows and contours; The number of intermediate color threads accounts for 20% to 30% of the total number of threads per thread, providing a buffer color scale for subsequent gradients. The number of light-colored or / and high-gloss colored threads accounts for 0-10% of the total number of threads per thread, which is used to break the excessive dullness and make the bottom layer have slight color fluctuations; (2) Middle layer embroidery: The middle layer is the coloring layer of the embroidery pattern. After the hue of the embroidery thread is selected, the ratio of the intermediate color to the highlight color is increased, and it is superimposed on the bottom layer with random needle embroidery. The looseness of the stitches is kept to allow the dark color of the bottom layer to pass through to form a soft gradient, so that the overall color tone transitions to a rich and light color gradient. The predetermined brightness ratio of the embroidery thread used in the middle layer embroidery is as follows: The number of intermediate color threads accounts for 50% to 60% of the total number of threads per thread. At this time, the proportion of intermediate color is increased relative to that of the intermediate color in the bottom layer, making the bottom dark color appear vaguely. The number of light-colored threads accounts for 30% to 40% of the total number of threads per thread, providing a significant gradient. The number of threads of highlight color accounts for 5% to 10% of the total number of threads per thread, and is used as the middle embellishment to lay the foundation for the upper highlight. (3) Upper embroidery: The upper layer is the embellishment layer of the embroidery pattern. When embroidering, after the hue of the embroidery thread is selected, the ratio of light color to highlight color is increased, and the key details are embroidered with short and scattered random needle embroidery needlework to form a dynamic gradient effect with shimmering light; The predetermined lightness ratios used in the upper embroidery threads are as follows: The number of light-colored and high-gloss colored silk threads accounts for 45% to 55% of the total number of silk threads per strand, which enhances the local highlights and surface flashes. The number of intermediate color threads accounts for 35% to 45% of the total number of threads per thread, so that the highlights are not too abrupt and smoothly connect with the middle color. The number of dark silk threads accounts for 5% to 10% of the total number of silk threads per strand, which is used to increase subtle contrast and maintain overall color balance. The superposition of the bottom layer, the middle layer and the upper layer makes the dark color, the intermediate color, the light color and the highlight color mixed at the micro level, and shows the natural and smooth gradient color and the delicate light and shadow change effect at the macro level.

2. The embroidery method for achieving a gradient color effect based on mixing mulberry silk threads in a color separation ratio according to claim 1, characterized in that: After the upper layer embroidery is completed, detail adjustment processing is then carried out. The detail adjustment processing is fine-tuned on the local color gradient transition through mending embroidery according to the overall appearance, and the stitch density of a certain color system is appropriately increased or decreased to ensure that the colors of each layer are naturally connected and the layers are rich.

3. The embroidery method for achieving a gradient color effect based on mixing mulberry silk threads in color separation ratios according to claim 1, characterized in that: The highlight color refers to a color whose brightness exceeds the average brightness of the entire embroidery pattern plus one standard deviation.

4. The embroidery method for achieving a gradient color effect based on mixing mulberry silk threads in color separation ratios according to claim 1, characterized in that: The hue refers to a name that can more accurately represent the color of a certain color. The hue can be divided into primary color and secondary color.

5. The embroidery method for achieving a gradient color effect based on mixing mulberry silk threads in color separation ratios according to claim 1, characterized in that: The brightness refers to the degree of lightness or darkness of a color.

6. The embroidery method for achieving a gradient color effect based on mixing mulberry silk threads in color separation ratios according to claim 1, characterized in that: The basic unit of the random needle embroidery method consists of two stitches, wherein the two stitches are arranged crosswise or at an angle.

7. The embroidery method for achieving a gradient color effect based on mixing mulberry silk threads in color separation ratios as claimed in claim 6, characterized in that: The stitch length of the random needle embroidery method used in the middle layer and the upper layer adopts medium stitches or / and short stitches, the length of the medium stitch is 14±3mm, the length of the short stitch is 7±3mm, and the relative crossing angle between the two stitches is in the range of 10°-75°.

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