Composite hair and makeup brush based on carbon fiber

Abstract

The present application relates to a composite hair filament based on carbon fiber and a cosmetic brush. The composite hair filament based on carbon fiber includes resin-coated carbon fiber and one or more of polyester fiber and animal fiber. The composite hair filament based on resin-coated carbon fiber in the present application has both high strength and single-filament bending recovery rate, and is suitable for use as a cosmetic brush.

Description

Technical Field

[0001] The present application relates to a composite bristle, and more specifically, to a composite bristle based on carbon fiber and a cosmetic brush. Background Art

[0002] Conventional makeup brushes are mostly made of plastic bristles, which are rough and stiff, and not protective enough for women's skin. In addition, there are also problems such as insufficient bristle strength, split ends, and hair loss, which make the user experience poor. Therefore, there is room for improvement. Simply adding a certain amount of animal hair as the bristles of makeup brushes has limited strength and high cost. Some manufacturers have tried to use carbon fiber as the bristles of makeup brushes. Although carbon fiber has high strength, it is expensive to produce, and the fiber is brittle and easily breaks during use, resulting in poor results.

[0003] How to use carbon fiber, PET, and animal hair to form composite bristles to improve the skin feel of the makeup brush when used, and the resulting makeup brush has high strength and elasticity, is not easily deformed after use, and extends the service life of the makeup brush. Summary of the invention

[0004] In order to solve the problem of makeup brush bristles having both strength and high bending resistance, the present application provides a carbon fiber-based composite bristle and a makeup brush.

[0005] In a first aspect, the present application provides a composite yarn based on carbon fiber, wherein the composite yarn includes resin-coated carbon fiber and one or more of polyester fiber and animal fiber.

[0006] By adopting the above scheme, the carbon fiber has high strength, and the composite wool prepared based on the carbon fiber has good strength and long service life. By coating the carbon fiber with resin, the fiber brittleness is reduced, and it is more difficult to break, and the use effect is better. By adding one or more of certain polyester fibers and animal fibers to prepare the composite wool, the strength and bending performance of the composite wool can be further adjusted.

[0007] In a specific embodiment, the preparation steps of resin-coated carbon fiber include: mixing resin, compatibilizer, antioxidant, and lubricant evenly, melting to obtain a mixture, immersing carbon fiber in the mixture, cooling and molding to obtain resin-coated carbon fiber, wherein the resin includes one or more of polybutylene terephthalate and polyethylene terephthalate.

[0008] Preferably, the melting temperature is 200-250°C.

[0009] Preferably, the melting temperature is 225-240°C.

[0010] Preferably, the volume ratio of polybutylene terephthalate to carbon fiber is (0.1-2000):1.

[0011] Through the above steps, polybutylene terephthalate and polyethylene terephthalate are very tough and have high strength. By coating carbon fiber, the strength is better and it is easy to rebound after bending. By limiting the melting temperature to 225-240°C, the coating of carbon fiber is more uniform and tight.

[0012] In a specific embodiment, the preparation steps of the resin-coated carbon fiber include: uniformly mixing epoxy acrylate, methacrylate isocyanate, hydroxycyclohexyl acetophenone, and an inhibitor to obtain a mixture, immersing the carbon fiber in the mixture, and taking out and curing with ultraviolet light to obtain the resin-coated carbon fiber.

[0013] The preparation method of the resin-coated carbon fiber prepared by the above steps is simple and the preparation effect is stable. The epoxy resin can be coated on the carbon fiber more tightly, giving the carbon fiber better bending recovery performance, which is suitable for large-scale preparation of hair for cosmetic brushes.

[0014] Preferably, in the preparation method of the above-mentioned resin-coated carbon fiber, the mass ratio of epoxy acrylate: methacrylate isocyanate: hydroxycyclohexyl acetophenone is 60:20:1.

[0015] Under the above mass ratio, the resin can better coat the carbon fiber. At the same time, when the carbon fiber is taken out from the mixture, the mixture has good leveling properties on the surface of the carbon fiber. The surface of the obtained resin-coated carbon fiber is relatively uniform and smooth, the strength is relatively uniform, and the bending recovery rate is high, which is suitable for use as makeup brush bristles.

[0016] Preferably, after the carbon fiber is immersed in the mixture and then taken out, the method further comprises the following step: centrifuging the carbon fiber at a speed of 800-900 r / min for 1-1.5 minutes.

[0017] Through the above steps, the surface of the resin-coated carbon fiber obtained is more uniform and the strength is more uniform.

[0018] In a specific embodiment, the composite wool also includes silica gel encapsulated hollow polyester fiber, and the preparation steps of the silica gel encapsulated hollow polyester fiber include: evenly mixing LSR liquid silica gel, platinum ruthenium catalyst and diisopropylbenzene peroxide to obtain a rubber compound, immersing the hollow polyester fiber in the rubber compound, taking it out, and vulcanizing it at 130-135°C for 45-70 seconds to obtain the silica gel encapsulated hollow polyester fiber.

[0019] Hollow polyester fiber is a fiber with an annular hollow, C-shaped or eccentric hollow. The spinneret is spun by melt-spinning polyester, which reduces the weight of the fiber. It contains a large amount of static air inside, has a more glutinous and rich feel, and the fiber is stiffer and fluffy, with a larger area, a high volume ratio, and a strong bending recovery ability. It is suitable for use as the hair of a makeup brush. By encapsulating the hollow polyester fiber with silica gel, the strength and recovery ability of the hollow fiber are further improved. At the same time, silica gel can penetrate into the pores of the hollow polyester fiber to a certain extent. After curing, the connection between silica gel and hollow polyester fiber is tighter, and the bending resistance of the fiber is improved. The strength and bending resistance of the composite hair are better. The preparation process of silica gel encapsulation in the above preparation steps is relatively simple. The vulcanized silica gel is relatively smooth and flat on the surface of the hollow polyester fiber, and the coating effect is better. Silica gel can penetrate into the pores of the hollow polyester fiber to a certain extent, which improves the connection strength between the two. The cured silica gel may also play a role similar to that of core material and wall material. At the same time, LSR liquid silicone is non-toxic, has low viscosity, fast curing, shear thinning, and high strength. It covers the surface of the hollow polyester fiber more evenly and has high elasticity. The produced wool is soft and elastic, with a better use experience. It also has high recovery, which further improves the bending resistance of the prepared silicone-coated hollow polyester fiber, thereby improving the strength and bending resistance of the composite wool.

[0020] In a specific embodiment, the hollow polyester fiber has a thickness of 75D-150D, a pore count of 72-96, and a count of the carbon fiber of 50-70 Tex.

[0021] By adopting the above scheme, the size of the hollow polyester fiber is appropriate and suitable for use as the composite hair of a makeup brush. By limiting the number of holes, the applicant found that the composite hair obtained at this time has the best anti-bending performance and strength performance. It may be that the pores of the hollow polyester fiber can be filled with more sufficient silica gel without significantly reducing the strength. In addition, by limiting the thickness of the hollow polyester fiber and the carbon fiber, the hollow polyester fiber and the carbon fiber can have a better match at this time, and the strands of the two are more uniform and parallel. The external force exerted on the composite hair can be better transferred and shared, and the composite hair obtained has both high strength and anti-bending performance.

[0022] In a specific embodiment, the mass ratio of carbon fiber to silica gel coated hollow polyester fiber is 1:(1.5-2.1).

[0023] By adopting the above scheme, the mass ratio of carbon fiber and silicone coated hollow polyester fiber is limited. Under this mass ratio, it is suitable to be used as a composite hair of a makeup brush, and the strength and bending resistance of the composite hair are relatively balanced.

[0024] In a specific embodiment, the hollow polyester fiber is an alkali-roughened hollow polyester fiber.

[0025] By adopting the above scheme, the surface of the roughened hollow polyester fiber has more tiny depressions. After being encapsulated with silicone, the silicone can penetrate into the depressions to enhance the connection effect between the two and improve the strength performance. When the composite wool is squeezed by external force, the stress is concentrated in the depressions, reducing the plastic deformation of the hollow fiber. After the external force is removed, the higher elasticity of the silicone filled in the depressions of the hollow fiber provides rebound for the fiber, further improving the bending resistance of the composite wool.

[0026] In a specific embodiment, the preparation steps of the alkali-roughened hollow polyester fiber include: adding the hollow polyester fiber to a sodium hydroxide aqueous solution, stirring evenly, heating, filtering, washing, and drying to obtain the alkali-roughened hollow polyester fiber.

[0027] By adopting the above scheme, the roughening step is relatively simple, and fibers with relatively uniform roughening can be obtained, and the performance of the alkali-roughened hollow fibers is relatively stable.

[0028] In a specific embodiment, the mass concentration of the sodium hydroxide aqueous solution is 0.4-0.5wt%, the heating temperature is 70-80°C, and the heating time is 15-20 minutes.

[0029] By adopting the above scheme, the degree of coarsening is appropriate and the strength of the hollow polyester fiber will not be greatly reduced. At the same time, the coarsening effect that can be obtained is relatively uniform and stable, and the silica gel can adhere well, so that the strength and bending resistance of the composite wool yarn are better.

[0030] In a second aspect, the present application provides a cosmetic brush comprising a brush head, a connecting tube and a brush handle, wherein the brush head is bonded to the inside of the connecting tube, and the brush handle is bonded to the side of the connecting tube away from the brush head, and the brush head is composed of composite bristles based on carbon fiber.

[0031] By adopting the above scheme, the cosmetic brush prepared in the present application has relatively simple preparation steps and has higher strength and bending resistance.

[0032] In a specific embodiment, the preparation steps of the brush head include: combing the composite hair filaments, grinding the peaks, and arranging them into bundles to obtain the brush head.

[0033] By adopting the above solution, the surface of the brush head is smoother, and the user feels more smooth and comfortable when applying makeup.

[0034] In summary, this application has the following beneficial effects: 1. Compared with the prior art, the present application compounds resin-coated carbon fibers of a certain size with polyester, especially polyethylene terephthalate or polybutylene terephthalate coated carbon fibers, and further limits the mass ratio of the mixture during the coating process, so as to achieve better coating and leveling effects on the surface of the carbon fibers, thereby improving the quality of the composite wool yarns obtained.

[0035] 2. The present application further adds silica gel encapsulated hollow polyester fibers and limits the mass ratio. The silica gel can better coat and penetrate the hollow pores of the hollow polyester fibers, and cooperate with the resin-coated carbon fibers to make the prepared composite wool fibers have both strength and bending resistance.

[0036] 3. The present application further subjects the hollow polyester fiber to alkali roughening and limits the roughening process to certain process parameters, so that the mechanical properties of the alkali-roughened hollow polyester fiber are relatively stable, while increasing the depressions on the fiber surface. The silicone filling of the depressions further enhances the connection strength, and provides force support and will bounce back when bent by external force. The composite bristles obtained are more suitable for use as brush head bristles for cosmetic brushes. DETAILED DESCRIPTION

[0037] To further help understand the technical solution of the present invention, several specific embodiments are provided to describe the technical solution of the present invention in more detail. All the embodiments described are only partial embodiments of the present invention, not all of them; the embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. The following embodiments are further explanations of the present invention, and the present invention is not limited thereto.

[0038] The components of the preparation examples used in the examples of this application all refer to components obtained by the preparation examples. Carbon fiber was purchased from Toray, where T300-1000 count is 66Tex and T300-3000 count is 198Tex; wool fiber fineness is 23-26mic and length is 70-75mmH. The remaining experimental reagents, unless otherwise specified, are all conventional commercial brands or obtained through conventional preparation processes.

[0039] Preparation Example Alkali roughened hollow polyester fiber: Preparation Example 1: 200 g of hollow polyester fiber was added into 500 g of 0.5 wt % sodium hydroxide aqueous solution, stirred evenly, heated at 70° C. for 15 minutes, filtered, washed twice with pure water, and dried to obtain alkali-roughened hollow polyester fiber.

[0040] The hollow polyester fiber in this preparation example is sylon ZKBN-1, with a pore number of 96 and a thickness of 150D.

[0041] Preparation Example 2: 200 g of hollow polyester fiber was added into 500 g of 0.5 wt % sodium hydroxide aqueous solution, stirred evenly, heated at 70° C. for 15 minutes, filtered, washed twice with pure water, and dried to obtain alkali-roughened hollow polyester fiber.

[0042] The hollow polyester fiber in this preparation example was purchased from sylon, with a pore number of 96 and a thickness of 200D.

[0043] Silica gel coated hollow polyester fiber: Preparation Example 3: 100g of LSR liquid silica gel, 1g of platinum ruthenium catalyst and 5g of diisopropylbenzene peroxide were uniformly mixed to obtain a rubber compound, 70g of hollow polyester fiber was immersed in the rubber compound, taken out, and vulcanized at 130°C for 70 seconds to obtain a silica gel encapsulated hollow polyester fiber.

[0044] The hollow polyester fiber in this preparation example is sylon ZKBN-1, with a pore number of 96 and a thickness of 150D.

[0045] Preparation Example 4: 100 g of LSR liquid silica gel, 1 g of platinum ruthenium catalyst and 5 g of diisopropylbenzene peroxide were uniformly mixed to obtain a rubber compound, 70 g of the alkali-roughened hollow polyester fiber obtained in Preparation Example 1 was immersed in the rubber compound, taken out, and vulcanized at 130° C. for 70 seconds to obtain a silica gel-encapsulated hollow polyester fiber.

[0046] Preparation Example 5: 100 g of LSR liquid silica gel, 1 g of platinum ruthenium catalyst and 5 g of diisopropylbenzene peroxide were uniformly mixed to obtain a rubber compound, 70 g of the alkali-roughened hollow polyester fiber obtained in Preparation Example 2 was immersed in the rubber compound, taken out, and vulcanized at 130° C. for 70 seconds to obtain a silica gel-encapsulated hollow polyester fiber.

[0047] Silica gel coated wool fiber: Preparation Example 6: 100g of LSR liquid silica gel, 1g of platinum ruthenium catalyst and 5g of diisopropylbenzene peroxide were uniformly mixed to obtain a rubber compound, 70g of wool fiber was immersed in the rubber compound, taken out, and vulcanized at 130°C for 70 seconds to obtain silica gel-coated wool fiber.

[0048] Resin coated carbon fiber: Preparation Example 7: 300 g of epoxy acrylate, 100 g of methacrylate isocyanate, 5 g of hydroxycyclohexyl acetophenone, and 0.7 g of hydroxyanisole were uniformly mixed to obtain a mixture, 125 g of carbon fiber was immersed in the mixture, taken out after 5 minutes, centrifuged at a speed of 800 / min for 1 minute, and UV-cured for 1 minute to obtain resin-coated carbon fiber.

[0049] In this preparation example, the carbon fiber is T300-1000 and the count is 66Tex.

[0050] Preparation Example 8: 400 g of epoxy acrylate, 100 g of methyl methacrylate isocyanate, 5 g of hydroxycyclohexyl acetophenone, and 0.7 g of hydroxyanisole were uniformly mixed to obtain a mixture, 125 g of carbon fiber was immersed in the mixture, taken out after 5 minutes, centrifuged at a speed of 800 / min for 1 minute, and UV-cured for 1 minute to obtain resin-coated carbon fiber.

[0051] In this preparation example, the carbon fiber is T300-1000 and the count is 66Tex.

[0052] Preparation Example 9: 150 g of polybutylene terephthalate, 3 g of ethylene-acrylic acid-methacrylate glycidyl ester, 2 g of pentaerythritol tetrakis(β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate), and 3 g of amide lubricant are mixed evenly, melted at ℃ to obtain a mixture, 100 g of carbon fiber is immersed in the mixture, and cooled to form a resin-coated carbon fiber.

[0053] In this preparation example, the carbon fiber is T300-1000 and the count is 66Tex. Example

[0054] Example 1 The masses of the components in this embodiment are: 100 g of the resin-coated carbon fiber prepared in Preparation Example 7, 150 g of the silica gel-coated hollow polyester fiber prepared in Preparation Example 3, and 100 g of the wool fiber.

[0055] The components are mixed, combed and ground to obtain composite wool.

[0056] Example 2 The masses of the components in this embodiment are: 100 g of the resin-coated carbon fiber prepared in Preparation Example 7, 150 g of the silica gel-coated hollow polyester fiber prepared in Preparation Example 4, and 100 g of the wool fiber.

[0057] The components are mixed, combed and ground to obtain composite wool.

[0058] Example 3 The masses of the components in this embodiment are: 100 g of the resin-coated carbon fiber prepared in Preparation Example 7, 150 g of the silica gel-coated hollow polyester fiber prepared in Preparation Example 5, and 100 g of the wool fiber.

[0059] The components are mixed, combed and ground to obtain composite wool.

[0060] Example 4 The masses of the components in this embodiment are: 125 g of the resin-coated carbon fiber prepared in Preparation Example 7, 125 g of the silica gel-coated hollow polyester fiber prepared in Preparation Example 4, and 100 g of the wool fiber.

[0061] The components are mixed, combed and ground to obtain composite wool.

[0062] Example 5 The masses of the components in this embodiment are: 100 g of the resin-coated carbon fiber prepared in Preparation Example 7, 150 g of the silica gel-coated hollow polyester fiber prepared in Preparation Example 4, and 100 g of the wool fiber.

[0063] The components are mixed, combed and ground to obtain composite wool.

[0064] Embodiment 6: The masses of the components in this embodiment are: 100 g of the resin-coated carbon fiber prepared in Preparation Example 7, 150 g of the silica gel-coated wool fiber prepared in Preparation Example 6, and 100 g of the wool fiber.

[0065] The components are mixed, combed and ground to obtain composite wool.

[0066] Example 7: The masses of the components in this example are: 100 g of the resin-coated carbon fiber prepared in Preparation Example 7, 150 g of the alkali-roughened hollow polyester fiber prepared in Preparation Example 4, and 100 g of the wool fiber.

[0067] The components are mixed, combed and ground to obtain composite wool.

[0068] Embodiment 8: The masses of the components in this embodiment are: 100 g of the resin-coated carbon fiber obtained in Preparation Example 7, 150 g of polyester fiber, and 100 g of wool fiber.

[0069] The components are mixed, combed and ground to obtain composite wool.

[0070] Embodiment 9: The masses of the components in this embodiment are: 100 g of the resin-coated carbon fiber obtained in Preparation Example 8, 150 g of polyester fiber, and 100 g of wool fiber.

[0071] The components are mixed, combed and ground to obtain composite wool.

[0072] Embodiment 10: The masses of the components in this embodiment are: 100 g of the resin-coated carbon fiber obtained in Preparation Example 9, 150 g of polyester fiber, and 100 g of wool fiber.

[0073] The components are mixed, combed and ground to obtain composite wool.

[0074] Embodiment 11: The masses of the components in this embodiment are: 100 g of the resin-coated carbon fiber obtained in Preparation Example 7, 150 g of polyester fiber, and 100 g of wool fiber.

[0075] The components are mixed, combed, ground, and bundled to obtain a brush head, which is then bonded inside a connecting tube, and a brush handle is bonded inside the connecting tube at a side away from the brush head to obtain a cosmetic brush.

[0076] Comparative Example 1: The masses of the components in this embodiment are: 100 g of carbon fiber, 150 g of polyester fiber, and 100 g of wool fiber.

[0077] The components are mixed, combed and ground to obtain composite wool.

[0078] In this comparative example, the carbon fiber is T300-1000 and the count is 66Tex.

[0079] Performance test Test 1: Referring to the standard GB / T 3916-2013, the breaking strength of the composite wool obtained in each embodiment and comparative example was tested, and the test method was A. The test results are shown in Table 1.

[0080] Test 2: Referring to the standard GB19342-2003, the bending recovery rate test results of the composite yarns prepared in various embodiments and comparative examples are summarized in Table 1.

[0081] Table 1 In combination with Example 2, Examples 8-10, Comparative Example 1 and Table 1, the present application prepares composite yarns by combining resin-coated carbon fiber with polyester and wool, and the prepared yarns have higher strength and a higher bending recovery rate.

[0082] In combination with Examples 1-3, 6-7, and 9 and Table 1, the present application performs alkali roughening and silica gel coating on hollow polyester fibers to obtain composite filaments with high breaking strength and high bending recovery rate, which are suitable for use in cosmetic brushes.

[0083] In combination with Examples 2, 4-5 and Table 1, the present application further improves the performance of the composite wool by limiting the thickness of the fiber.

[0084] This specific embodiment of the present application is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, a person skilled in the art may make modifications to the embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A composite wool based on carbon fiber, characterized in that: The composite wool yarn includes resin-coated carbon fiber and one or more of polyester fiber and animal fiber.

2. The carbon fiber-based composite yarn according to claim 1, characterized in that: The preparation steps of the resin-coated carbon fiber include: uniformly mixing resin, compatibilizer, antioxidant and lubricant, melting to obtain a mixture, immersing carbon fiber in the mixture, cooling and molding to obtain resin-coated carbon fiber, wherein the resin includes one or more of polybutylene terephthalate and polyethylene terephthalate.

3. The carbon fiber-based composite yarn according to claim 1, characterized in that: The preparation steps of the resin-coated carbon fiber include: uniformly mixing epoxy acrylate, methacrylate isocyanate, hydroxycyclohexyl acetophenone and a polymerization inhibitor to obtain a mixture, immersing the carbon fiber in the mixture, taking out and curing with ultraviolet light to obtain the resin-coated carbon fiber.

4. The carbon fiber-based composite yarn according to claim 1, characterized in that: The composite wool yarn also includes silica gel coated hollow polyester fiber. The preparation steps of the silica gel coated hollow polyester fiber include: evenly mixing LSR liquid silica gel, platinum ruthenium catalyst and diisopropylbenzene peroxide to obtain a rubber compound, immersing the hollow polyester fiber in the rubber compound, taking it out, and vulcanizing it at 130-135° C. for 45-70 seconds to obtain the silica gel coated hollow polyester fiber.

5. The carbon fiber-based composite yarn according to claim 4, characterized in that: The hollow polyester fiber has a thickness of 75D-150D, a pore number of 72-96, and a carbon fiber count of 50-70Tex.

6. The carbon fiber-based composite yarn according to claim 4, characterized in that: The mass ratio of the resin-coated carbon fiber to the silica gel-coated hollow polyester fiber is 1:(1.5-2.1).

7. The carbon fiber-based composite yarn according to claim 4, characterized in that: The hollow polyester fiber is an alkali-roughened hollow polyester fiber.

8. The carbon fiber-based composite yarn according to claim 7, characterized in that: The preparation steps of the alkali-roughened hollow polyester fiber include: adding the hollow polyester fiber to a sodium hydroxide aqueous solution, stirring evenly, heating, filtering, washing, and drying to obtain the alkali-roughened hollow polyester fiber; the mass concentration of the sodium hydroxide aqueous solution is 0.4-0.5wt%, the heating temperature is 70-80°C, and the heating time is 15-20 minutes.

9. A cosmetic brush, characterized in that: The brush head comprises a brush head, a connecting tube and a brush handle, wherein the brush head is bonded inside the connecting tube, and the brush handle is bonded inside the connecting tube on a side away from the brush head. The brush head is composed of the carbon fiber-based composite filaments according to any one of claims 1 to 8.

10. The cosmetic brush according to claim 9, characterized in that: The preparation steps of the brush head include: combing the composite hair filaments, grinding the peaks, and arranging them into bundles to obtain the brush head.

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