Super-bright flashing metal color pencil lead and method for manufacturing the same

Abstract

The present application provides a kind of super bright flash type metal color pencil and its preparation method, the component of the super bright flash type metal color pencil includes aluminum silver paste, synthetic wax, filler, binder and pigment;The synthetic wax is obtained by esterification reaction of fatty acid and polyol under the action of catalyst;The fatty acid includes any one or combination of at least two of stearic acid, isostearic acid, myristic acid or palmitic acid.The present application prepares synthetic wax with high transparency and stable crystal structure, can reduce the loss of aluminum silver paste metal effect caused by high shear force in the process of pencil manufacturing, significantly improve the flash of color pencil, present brighter metal luster, pencil hardness is moderate, can be drawn smoothly on different drawing materials, not easy to break.

Description

Technical Field

[0001] This invention belongs to the field of colored lead core preparation technology, specifically relating to an ultra-bright, shimmering metallic colored lead core and its preparation method. Background Technology

[0002] Colored pencil leads are widely used in cultural and artistic creation as well as in everyday writing and drawing. Among them, metallic colored pencil leads, with their unique metallic luster and shimmering effect, are favored by artists, designers, and drawing enthusiasts alike. They are often used in creative drawing, art design, and special marking to create unique visual effects.

[0003] Currently, most mainstream metallic colored pencils on the market use aluminum silver paste as the primary material for achieving a metallic sheen. Aluminum silver paste possesses excellent metallic luster and shimmering properties, theoretically capable of giving colored pencils outstanding visual effects. However, in practical applications, existing metallic colored pencils generally suffer from unsatisfactory metallic sheen effects. During actual drawing, users often find that the lines they draw have a dull metallic sheen, failing to meet the creative demands for high brightness and strong visual impact. For example, when drawing objects with a strong metallic texture, such as gold and silver jewelry or metal sculptures, traditional metallic colored pencils struggle to vividly express the brilliant luster and shimmering effect of metal, severely impacting the artistic expression of the artwork.

[0004] The main reason for this lies in the contradiction between the manufacturing process of colored lead leads and the properties of aluminum silver paste. The manufacturing process of colored lead leads typically involves multiple steps such as mixing, stirring, and extrusion. During these processes, the aluminum silver paste inevitably experiences significant shear forces. This excessive shearing damages its structure, causing a substantial decrease in its original glitter properties, or even complete loss of glitter effect. Furthermore, traditional metallic colored lead leads also have limitations in their formulation systems, failing to fully utilize the glitter properties of aluminum silver paste. Simultaneously, in terms of raw material selection, constraints such as cost control and process compatibility mean that some auxiliary materials not only fail to enhance the glitter effect of aluminum silver paste but may also have a negative impact.

[0005] In summary, existing metallic colored lead cores, primarily made of aluminum silver paste, suffer from insufficient metallic shimmer due to issues in manufacturing processes, formulation systems, and raw material selection. Therefore, there is an urgent need to develop a new type of metallic colored lead core. This new core should address the structural damage issues of aluminum silver paste through innovative formulation systems, optimized raw material selection, and improved manufacturing processes, thereby maximizing and enhancing its shimmer performance to meet the market's pressing demand for high-brightness metallic shimmer colored lead cores. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an ultra-bright, glittery metallic colored lead core and its preparation method. The colored lead core provided by this invention has an ultra-bright, glittery coating effect, a smooth feel, strong covering power, and is not easy to break. It has extremely strong glitter on white paper and black cardstock.

[0007] To achieve this objective, the present invention adopts the following technical solution: In a first aspect, the present invention provides an ultra-bright, shimmering metallic colored lead core, the components of which include aluminum silver paste, synthetic wax, filler, binder and pigment; The synthetic wax is obtained by esterification of fatty acids and polyols under the action of a catalyst; the fatty acids include any one or a combination of at least two of stearic acid, isostearic acid, myristic acid or palmitic acid.

[0008] This invention prepares a synthetic wax with high transparency and stable crystal structure, which can reduce the loss of metallic effect of aluminum silver paste due to high shear force during lead manufacturing, significantly improve the luster of colored pencils, present a brighter metallic luster, and the lead core has moderate hardness, which can be used to draw smoothly on different painting materials and is not easy to break.

[0009] Preferably, the components of the ultra-bright, glittery metallic colored lead core include, by weight, 10-20 parts aluminum silver paste, 20-30 parts synthetic wax, 30-40 parts filler, 5-10 parts binder, and 5-10 parts pigment.

[0010] The weight percentage of the aluminum silver paste can be 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, or 20 parts, etc.

[0011] The synthetic wax can be in parts by weight of 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, or 30 parts, etc.

[0012] The filler can be present in parts by weight of 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, or 40 parts, etc.

[0013] The adhesive can be in the following weight proportions: 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7 parts, 7.5 parts, 8 parts, 8.5 parts, 9 parts, 9.5 parts, or 10 parts.

[0014] The pigment can be expressed in parts by weight of 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, or 10 parts, etc.

[0015] Preferably, the fatty acids include stearic acid, isostearic acid, and myristic acid.

[0016] Stearic acid, isostearic acid, and myristic acid have a synergistic effect. The synthetic wax prepared by combining the three can better enhance the glitter and metallic texture of colored pencils, making the drawing smooth and less prone to breakage.

[0017] Preferably, the mass ratio of stearic acid, isostearic acid and myristic acid is (1~10):(1~10):(1~10).

[0018] The specific point value in the first (1~10) can be 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10, etc.

[0019] The specific point values ​​in the second (1~10) can be 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10, etc.

[0020] The specific point values ​​in the third (1~10) can be 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10, etc.

[0021] Preferably, the polyol includes any one or a combination of at least two of pentaerythritol, sorbitol, or xylitol.

[0022] Preferably, the polyol includes pentaerythritol, sorbitol, and xylitol.

[0023] Pentaerythritol, sorbitol, and xylitol have a synergistic effect. The synthetic wax prepared by combining the three can better enhance the glitter and metallic texture of colored pencils, making the lines smoother and less prone to breakage.

[0024] Preferably, the mass ratio of pentaerythritol, sorbitol and xylitol is (1~5):(1~5):(1~5).

[0025] The specific point values ​​in the first (1~5) can be 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5 or 5, etc.

[0026] The specific point values ​​in the second (1~5) can be 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5 or 5, etc.

[0027] The specific point values ​​in the third (1~5) can be 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5 or 5, etc.

[0028] Preferably, the catalyst comprises any one or a combination of at least two of zinc oxide, stannous oxide, stannous tetrachloride, ferric chloride, or aluminum trichloride.

[0029] Preferably, the catalyst comprises zinc oxide and / or stannous oxide.

[0030] Zinc oxide and stannous oxide are more effective than other catalysts. Synthetic waxes prepared by mediating esterification reactions can better enhance the glitter and metallic texture of colored pencils, resulting in smoother lines and less breakage.

[0031] Preferably, the mass ratio of the fatty acid, polyol and catalyst is (65~90):(10~20):(1~5).

[0032] The specific point values ​​in (65~90) can be 65, 66, 67, 68, 69, 70, 75, 80, 85 or 90, etc.

[0033] The specific point values ​​in (10~20) can be 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 or 20, etc.

[0034] The specific point values ​​in (1~5) can be 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5 or 5, etc.

[0035] Preferably, the temperature of the esterification reaction is 150~170℃, for example, 150℃, 152℃, 155℃, 157℃, 160℃, 163℃, 165℃, 168℃ or 170℃, etc.; the time is 4~6 h, for example, 4 h, 4.2 h, 4.5 h, 4.7 h, 5 h, 5.3 h, 5.5 h, 5.8 h or 6 h, etc.

[0036] Preferably, the esterification reaction is carried out under a nitrogen atmosphere.

[0037] Preferably, the esterification reaction is followed by a purification step.

[0038] Preferably, the purification method is vacuum distillation.

[0039] Preferably, the filler comprises any one or a combination of at least two of kaolin, talc, bentonite, or calcium carbonate.

[0040] Preferably, the adhesive comprises any one or a combination of at least two of gum arabic, sodium carboxymethyl cellulose, polyvinyl alcohol, or gum arabic.

[0041] Preferably, the pigment includes organic pigments and / or inorganic pigments.

[0042] Preferably, the components of the ultra-bright, glittery metallic colored lead core also include a dispersant.

[0043] Preferably, the composition of the ultra-bright, glittery metallic colored lead core further includes 2 to 5 parts by weight of dispersant.

[0044] The dispersant is present in parts by weight of 2, 2.2, 2.5, 2.7, 3, 3.3, 3.5, 3.8, 4, 4.5, or 5 parts, etc.

[0045] Preferably, the dispersant comprises any one or a combination of at least two of γ-aminopropyltriethoxysilane, γ-(2,3-epoxypropoxy)propyltrimethoxysilane, γ-methacryloyloxypropyltrimethoxysilane, vinyltriethoxysilane, or N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane.

[0046] In a second aspect, the present invention provides a method for preparing an ultra-bright, shimmering metallic colored lead core as described in the first aspect, the method comprising: After mixing the filler, binder and pigment, they are then mixed with melted synthetic wax, water and aluminum silver paste in sequence, rolled, extruded and dried to obtain the super bright flashing metallic colored lead core.

[0047] Preferably, the mixing process of fillers, binders and pigments also includes the addition of dispersants.

[0048] Preferably, the mixing time with the synthetic wax is 30 to 40 minutes, for example, 30 minutes, 31 minutes, 32 minutes, 33 minutes, 34 minutes, 35 minutes, 36 minutes, 37 minutes, 38 minutes, 39 minutes, or 40 minutes.

[0049] Preferably, the mixing time with water is 5 to 10 minutes, for example, 5 minutes, 5.5 minutes, 6 minutes, 6.5 minutes, 7 minutes, 7.5 minutes, 8 minutes, 8.5 minutes, 9 minutes, 9.5 minutes, or 10 minutes.

[0050] Preferably, the mixing time with aluminum silver paste is 25 to 35 minutes, for example, 25 minutes, 26 minutes, 27 minutes, 28 minutes, 29 minutes, 30 minutes, 31 minutes, 32 minutes, 33 minutes, 34 minutes or 35 minutes.

[0051] Preferably, the mixing temperature with the aluminum silver paste is 35~40℃, for example, it can be 35℃, 35.5℃, 36℃, 36.5℃, 37℃, 37.5℃, 38℃, 38.5℃, 39℃, 39.5℃ or 40℃, etc.

[0052] Other specific point values ​​within the range of the above values ​​can be selected, and will not be elaborated on here.

[0053] Compared with the prior art, the present invention has the following beneficial effects: (1) The specific synthetic wax of this invention has high transparency and stable crystal structure, which can reduce the loss of aluminum silver paste metallic effect due to high shear force during lead core manufacturing, significantly improve the brilliance of colored pencils, and present a brighter metallic luster. Under different lighting conditions, the lines and patterns drawn by colored pencils can emit a brilliant metallic luster, adding a unique visual charm to the artwork and satisfying the user's pursuit of a gorgeous and dazzling metallic visual effect.

[0054] (2) Traditional metallic colored pencils are coated with a liquid metallic paint. Because the process does not involve grinding and rolling, the metallic effect of this paint is far superior to that of the lead core. Through the unique technical means of this invention, the lead core and the surface metallic paint have a consistent metallic effect. Whether outlining details or applying color to large areas, users can obtain a unified and high-quality metallic texture, which greatly enhances the expressiveness and effect of painting creation.

[0055] (3) While enhancing the metallic and glitter effects, the lead core of the present invention has moderate hardness, which allows for smooth drawing on different painting materials and is not easily broken. Detailed Implementation

[0056] To further illustrate the technical means and effects of the present invention, the following describes the technical solution of the present invention in conjunction with preferred embodiments of the present invention. However, the present invention is not limited to the scope of the embodiments.

[0057] Where specific techniques or conditions are not specified in the examples, they shall be performed in accordance with the techniques or conditions described in the literature in this field, or in accordance with the product instructions. Reagents or instruments whose manufacturers are not specified are all conventional products that can be purchased through legitimate channels.

[0058] The sources of materials used in the following specific embodiments are shown in Table 1: Table 1 Preparation Example 1 This preparation example provides a synthetic wax prepared by a method comprising the following steps: 50 g stearic acid, 10 g isostearic acid, 20 g myristic acid, 5 g pentaerythritol, 5 g sorbitol, and 5 g xylitol were added to a reaction vessel. Nitrogen gas was turned on, and the temperature was slowly raised to 120°C to completely melt the solids. The stirring speed was adjusted to 200 rpm. 3 g zinc oxide was added, and the reaction was carried out at 160°C for 5 h. The catalyst was separated and removed, and the water was removed by vacuum distillation to obtain the synthetic wax.

[0059] Preparation Example 2 This preparation example provides a synthetic wax prepared by a method comprising the following steps: 70 g stearic acid, 10 g isostearic acid, 10 g myristic acid, 4 g pentaerythritol, 4 g sorbitol, and 12 g xylitol were added to a reaction vessel. Nitrogen gas was turned on, and the temperature was slowly raised to 120°C to completely melt the solid. The stirring speed was adjusted to 200 rpm. 5 g zinc oxide was added, and the reaction was carried out at 170°C for 4 h. The catalyst was separated and removed, and the water was removed by vacuum distillation to obtain the synthetic wax.

[0060] Preparation Example 3 This preparation example provides a synthetic wax prepared by a method comprising the following steps: 45 g stearic acid, 5 g isostearic acid, 15 g myristic acid, 4 g pentaerythritol, 3 g sorbitol, and 3 g xylitol were added to a reaction vessel. Nitrogen gas was turned on, and the temperature was slowly raised to 120°C to completely melt the solid. The stirring speed was adjusted to 200 rpm. 1 g zinc oxide was added, and the reaction was carried out at 150°C for 6 h. The catalyst was separated and removed, and the water was removed by vacuum distillation to obtain the synthetic wax.

[0061] Preparation Example 4 This preparation example provides a synthetic wax that differs from Preparation Example 1 only in that stearic acid is not added, and its reduction is proportionally allocated to isostearic acid and myristic acid, while the other raw materials and steps remain unchanged.

[0062] Preparation Example 5 This preparation example provides a synthetic wax that differs from Preparation Example 1 only in that isostearic acid is not added, and its reduction is proportionally allocated to stearic acid and myristic acid, while the other raw materials and steps remain unchanged.

[0063] Preparation Example 6 This preparation example provides a synthetic wax that differs from Preparation Example 1 only in that: myristic acid is not added, and its reduction is proportionally allocated to stearic acid and isostearic acid, while the other raw materials and steps remain unchanged.

[0064] Preparation Example 7 This preparation example provides a synthetic wax that differs from Preparation Example 1 only in that: pentaerythritol is not added, and its reduction is proportionally allocated to sorbitol and xylitol, while the other raw materials and steps remain unchanged.

[0065] Preparation Example 8 This preparation example provides a synthetic wax that differs from Preparation Example 1 only in that: sorbitol is not added, and its reduction is proportionally allocated to pentaerythritol and xylitol, while the other raw materials and steps remain unchanged.

[0066] Preparation Example 9 This preparation example provides a synthetic wax that differs from Preparation Example 1 only in that xylitol is not added, and its reduction is proportionally allocated to pentaerythritol and sorbitol, while the other raw materials and steps remain unchanged.

[0067] Preparation Example 10 This preparation example provides a synthetic wax that differs from Preparation Example 1 only in that "zinc oxide" is replaced with an equal amount of "stannous oxide", while the other raw materials and steps remain unchanged.

[0068] Preparation Example 11 This preparation example provides a synthetic wax that differs from Preparation Example 1 only in that "zinc oxide" is replaced with an equal amount of "tin tetrachloride", while the other raw materials and steps remain unchanged.

[0069] Preparation Example 12 This preparation example provides a synthetic wax that differs from Preparation Example 1 only in that "zinc oxide" is replaced with an equal amount of "magnesium oxide", while the other raw materials and steps remain unchanged.

[0070] Example 1 This embodiment provides a metallic colored lead core, the composition and content of which are shown in Table 2: Table 2 The preparation method includes: mixing filler, binder, dispersant and pigment evenly, then adding melted synthetic wax and stirring for 35 min, then adding 30wt% water and stirring for 8 min, finally adding aluminum silver paste and stirring at 38℃ for 30 min, rolling with a three-roll mill 6 times to obtain uniformly dispersed sheet material, obtaining wet core in a hydraulic core extruder, drying to remove moisture, and obtaining the metallic colored lead core.

[0071] Example 2 This embodiment provides a metallic colored lead core, the composition and content of which are shown in Table 3: Table 3 The preparation method includes: mixing filler, binder, dispersant and pigment evenly, then adding melted synthetic wax and stirring for 40 min, then adding 30wt% water and stirring for 10 min, finally adding aluminum silver paste and stirring at 40℃ for 25 min, rolling with a three-roll mill 6 times to obtain uniformly dispersed sheet material, obtaining wet core in a hydraulic core extruder, drying to remove moisture, and obtaining the metallic colored lead core.

[0072] Example 3 This embodiment provides a metallic colored lead core, the composition and content of which are shown in Table 4: Table 4 The preparation method includes: mixing filler, binder, dispersant and pigment evenly, then adding melted synthetic wax and stirring for 30 min, then adding 30wt% water and stirring for 5 min, finally adding aluminum silver paste and stirring at 35℃ for 35 min, rolling with a three-roll mill 6 times to obtain uniformly dispersed sheet material, obtaining wet core in a hydraulic core extruder, drying to remove moisture, and obtaining the metallic colored lead core.

[0073] Examples 4-12 This embodiment provides a metallic colored lead core, which differs from Example 1 only in that the "synthetic wax of Preparation Example 1" is replaced with an equal amount of "synthetic wax of Preparation Examples 4 to 12", while the other raw materials and steps remain unchanged.

[0074] Comparative Example 1 This comparative example provides a metallic colored lead core, which differs from Example 1 only in that the "synthetic wax of Preparation Example 1" is replaced with an equal amount of "paraffin wax", while the other raw materials and steps remain unchanged.

[0075] Test case The metallic colored lead cores from Examples 1-12 and Comparative Example 1 were used to prepare colored pencils, and then the following tests were conducted: (1) Metallic texture of coating: using 160 g / m 2 White cardstock and 250 g / m 2 Black cardstock was coated with cross-hatching patterns within a 3 cm × 3 cm test area under a constant pressure of 2 N. Three layers were applied (one horizontally, one vertically, and one diagonally) to ensure the paper substrate was completely covered by the lead core color, with no obvious white or black gaps. Under specific illumination with a D65 standard light source (color temperature 6500K), the ratio of the visible area of ​​metallic reflective particles to the total coated area was calculated. The ratio of the total extracted highlight area to the test area area was defined as the metallic grain size (denoted as S). The metallic sheen of the sample was graded based on the value of the metallic grain size S. The specific grading standards are as follows: when S ≥ 80%, the sample's metallic texture is rated as excellent; when 60% ≤ S < 80%, the sample's metallic texture is rated as good; when S < 60%, the sample's metallic texture is rated as average.

[0076] (2) Opacity: Ten colored pencils were taken from each group and fixed on a circular writing instrument to draw 50 circles. The angle between the pencil tip and the normal of the paper was set to 45 degrees. A constant load of 300 grams was applied. The pencils were written continuously for 20 meters at an interval of 5 meters / minute on test paper conforming to ISO12757. The CIE Lab color space parameters of the drawn color strip were measured using a spectrophotometer under a D65 light source. The average value of the lightness L value of the three test points was calculated.

[0077] (3) Sharpening and breaking of lead: After each group of lead pencils is made, 500 pencils are randomly selected from 1440 pencils and sharpened on a pencil sharpening machine. The breakage rate is then counted.

[0078] As shown in Table 5: Examples 1-3 and Comparative Example 1 demonstrate that the synthetic wax prepared by this invention has high transparency and a stable crystal structure. This reduces the loss of metallic effect of aluminum silver paste due to high shear force during lead core manufacturing, significantly improves the shimmer of colored pencils, and produces a brighter metallic luster. The lead core has moderate hardness, allowing for smooth drawing on various painting materials and preventing breakage. Examples 4-6 show that stearic acid, isostearic acid, and myristic acid have a synergistic effect. The synthetic wax prepared by combining these three components better enhances the shimmer and metallic texture of colored pencils, resulting in smooth drawing and preventing breakage. Examples 7-9 show that pentaerythritol, sorbitol, and xylitol have a synergistic effect. The synthetic wax prepared by combining these three components better enhances the shimmer and metallic texture of colored pencils, resulting in smooth drawing and preventing breakage. Examples 10-12 show that zinc oxide and stannous oxide are more effective than other catalysts. The synthetic wax prepared by mediating esterification reaction better enhances the shimmer and metallic texture of colored pencils, resulting in smooth drawing and preventing breakage.

[0079] Table 5 This invention illustrates a super-bright, shimmering metallic colored lead core and its preparation method through the above embodiments. However, this invention is not limited to the above embodiments, meaning that this invention does not necessarily rely on the above embodiments for implementation. Those skilled in the art should understand that any improvements to this invention, equivalent substitutions of raw materials, additions of auxiliary components, and selection of specific methods, etc., all fall within the protection and disclosure scope of this invention.

[0080] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0081] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

Claims

1. A super-bright, glittery metallic colored lead core, characterized in that, The components of the ultra-bright, glittery metallic colored lead core include aluminum silver paste, synthetic wax, filler, binder, and pigment; The synthetic wax is obtained by esterification of fatty acids and polyols under the action of a catalyst; the fatty acids include any one or a combination of at least two of stearic acid, isostearic acid, myristic acid or palmitic acid.

2. The ultra-bright, shimmering metallic colored lead core according to claim 1, characterized in that, The components of the super-bright, glittery metallic colored lead core, by weight, include 10-20 parts aluminum silver paste, 20-30 parts synthetic wax, 30-40 parts filler, 5-10 parts binder, and 5-10 parts pigment.

3. The ultra-bright, shimmering metallic colored lead core according to claim 1, characterized in that, The fatty acids include stearic acid, isostearic acid, and myristic acid; The mass ratio of stearic acid, isostearic acid and myristic acid is (1~10):(1~10):(1~10).

4. The ultra-bright, shimmering metallic colored lead core according to claim 1, characterized in that, The polyols include any one or a combination of at least two of pentaerythritol, sorbitol, or xylitol.

5. The ultra-bright, shimmering metallic colored lead core according to claim 4, characterized in that, The polyols include pentaerythritol, sorbitol and xylitol; The mass ratio of pentaerythritol, sorbitol and xylitol is (1~5):(1~5):(1~5).

6. The ultra-bright, shimmering metallic colored lead core according to claim 1, characterized in that, The catalyst includes any one or a combination of at least two of zinc oxide, stannous oxide, stannous tetrachloride, ferric chloride, or aluminum trichloride.

7. The ultra-bright, shimmering metallic colored lead core according to claim 1, characterized in that, The mass ratio of the fatty acid, polyol and catalyst is (65~90):(10~20):(1~5); The esterification reaction is carried out at a temperature of 150~170℃ for 4~6 hours. The esterification reaction was carried out under a nitrogen atmosphere; The esterification reaction is followed by a purification step. The purification method is vacuum distillation.

8. The ultra-bright, glittering metallic colored lead core according to claim 1, characterized in that, The filler includes any one or a combination of at least two of the following: kaolin, talc, bentonite, or calcium carbonate. The adhesive comprises any one or a combination of at least two of the following: gum arabic, sodium carboxymethyl cellulose, polyvinyl alcohol, or gum arabic. The pigments include organic pigments and / or inorganic pigments; The components of the ultra-bright, glittery metallic colored lead core also include a dispersant; The dispersant includes any one or a combination of at least two of γ-aminopropyltriethoxysilane, γ-(2,3-epoxypropoxy)propyltrimethoxysilane, γ-methacryloyloxypropyltrimethoxysilane, vinyltriethoxysilane, or N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane.

9. The method for preparing the ultra-bright, glittery metallic colored lead core according to any one of claims 1 to 8, characterized in that, The preparation method includes: After mixing the filler, binder and pigment, they are then mixed with melted synthetic wax, water and aluminum silver paste in sequence, rolled, extruded and dried to obtain the super bright flashing metallic colored lead core.

10. The preparation method according to claim 9, characterized in that, The mixing process of fillers, binders and pigments also includes the addition of dispersants; The mixing time with synthetic wax is 30-40 minutes; The mixing time with water is 5-10 minutes; The mixing time with aluminum silver paste is 25~35 min; The mixing temperature with aluminum silver paste is 35~40℃.

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