Glue-free cosmetic brush made of PBT (Polybutylene Terephthalate) material

Abstract

The invention provides a glue-free cosmetic brush made of a PBT material, and relates to the technical field of cosmetic brushes. The glue-free cosmetic brush made of the PBT material comprises a brush head, a brush tube and a brush handle, and further comprises a brush head fixing piece, one end of the brush head is fixed in the brush head fixing piece, the brush head fixing piece is fixed at one end of the brush tube, and the other end of the brush tube is fixed on the brush handle; the brush head, the brush head fixing piece, the brush pipe and the brush handle are all made of PBT materials. The whole cosmetic brush does not need glue, harmful gas cannot be generated in the preparation and use process, glue removal is not needed during recycling, recycling is more convenient, and the requirement for environmental protection is met. The brush bristles, the brush bristle fixing piece, the brush pipe and the brush handle are all made of the same raw material PBT plastic, so that the cosmetic brush does not need to be disassembled and classified when being recycled, the whole cosmetic brush is recycled for waste recycling, the recycling procedure is simplified, the cost is saved, and economic benefits are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of cosmetic brushes, and in particular to a cosmetic brush made of PBT material without glue. Background Art

[0002] There are many types of makeup brushes among makeup tools, which can be combined according to personal makeup habits. However, powder brushes, concealer brushes, blush brushes, eyeshadow brushes, eyebrow brushes and lip brushes are the six essential makeup brushes. The powder brushes swept by the powder brush have a silky texture, which can make the makeup face cleaner and more lasting; the concealer brush has finer bristles, which can reach hard-to-reach areas, and the concealer effect is more uniform and natural; the blush brush can apply blush with a natural arc, blend shadows, and perfectly highlight the facial contour; there are many types of eyeshadow brushes, and eyeshadow brushes of different sizes need to be prepared to match different eye-drawing methods; the eyebrow brush needs to be used with eyebrow powder to draw a very natural eyebrow shape; the lip brush accurately outlines the lip shape, making the lips full and even in color, and more lasting, meeting people's needs for makeup on different parts of the body.

[0003] At present, makeup brushes mainly consist of three parts: bristles, brush tubes, and brush handles. The bristles on the market are mainly made of fiber hair, the tubes are mainly aluminum tubes, and the handles are mainly PS or ABS plastic handles. The three parts are fixed with glue. The bristles, tubes, and handles are made of different materials, and they need to be specially classified for recycling after use. In addition, glue is a chemical, which brings great inconvenience to the recycling of finished products. The organic components in the glue may contain formaldehyde and benzene, which can cause harm to the human body and may affect other aspects such as the respiratory tract and skin, which is very environmentally unfriendly. Summary of the invention

[0004] The purpose of the present application is to provide a PBT material glue-free makeup brush, which has the characteristics of being glue-free and made of uniform raw materials, and has the advantages of being environmentally friendly, safe, and easy to recycle.

[0005] In order to solve the above technical problems, the technical solution adopted in this application is:

[0006] The present application provides a glue-free makeup brush made of PBT material, comprising a brush head, a brush tube and a brush handle, and also comprising a brush head fixing part, one end of the brush head is fixed in the brush head fixing part, the brush head fixing part is fixed to one end of the brush tube, and the other end of the brush tube is fixed to the brush handle; the brush head, brush head fixing part, brush tube and brush handle are all made of PBT material.

[0007] Compared with the prior art, the embodiments of the present application have at least the following advantages or beneficial effects:

[0008] 1. The bristles of the present application are fixed to the mouth tube of the brush head fixing part by ultrasonic means, the mouth tube of the brush head fixing part is fixed to the brush tube by a snap buckle, and the brush tube is fixed to the brush handle by a snap buckle or a thread. The whole cosmetic brush is assembled and prepared in this way without the need for glue, and the process of preparation and use will not generate harmful gases. There is no need to remove the glue during recycling, which is more convenient for recycling and meets the needs of environmental protection.

[0009] 2. The bristles, bristle fixings, brush tubes and brush handles of the present application are all made of the same raw material, PBT plastic, so that the makeup brushes do not need to be disassembled and classified when they are recycled. The entire makeup brush can be recycled for waste recycling, which simplifies the recycling procedure, saves costs, and has economic benefits.

[0010] 3. In the preferred embodiment of the present application, degradable yeast can be added to the PBT plastic, so that the entire makeup brush can be naturally degraded in a certain environment, which is more environmentally friendly and efficient.

[0011] In summary, the PBT plastic glue-free makeup brush of the present application has the advantages of reducing resource consumption, reducing energy consumption, reducing waste and pollution, improving circular economy, and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 This is a diagram of the subassembly and assembly of the components of the makeup brush in Example 1 of the present application;

[0014] Figure 2 This is a product picture of a makeup brush in Example 1 of the present application;

[0015] Figure 3 This is a diagram of the subpackaging and assembly of the various components of the makeup brush in Example 6 of the present application. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below. If the specific conditions are not specified in the embodiments, they are carried out according to the conventional conditions or the conditions recommended by the manufacturer. If the manufacturer is not specified for the reagents or instruments used, they are all conventional products that can be purchased commercially.

[0017] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to specific embodiments.

[0018] A PBT glue-free cosmetic brush comprises a brush head, a brush tube and a brush handle, and also comprises a brush head fixing part, wherein one end of the brush head is fixed in the brush head fixing part, the brush head fixing part is fixed to one end of the brush tube, and the other end of the brush tube is fixed to the brush handle; the brush head, the brush head fixing part, the brush tube and the brush handle are all made of PBT material.

[0019] In some embodiments of the present application, the brush head is fixed in the brush head fixing member by ultrasonic process.

[0020] In some embodiments of the present application, the brush head fixing member is fixed in the brush tube by means of a snap-fit.

[0021] In some embodiments of the present application, the other end of the brush tube is fixed to the brush handle by a buckle or a thread.

[0022] In some embodiments of the present application, the PBT material further comprises degradation yeast.

[0023] In some embodiments of the present application, the added amount of the above-mentioned degradation yeast is 1%.

[0024] In some embodiments of the present application, the PBT material of the brush head fixing part, the brush tube and the brush handle further contains pigment.

[0025] In some embodiments of the present application, the brush head fixing part and the brush tube can be separated for the sake of aesthetics and convenience of changing the colors of different parts. Alternatively, in order to save costs and reduce a set of injection molds and production and assembly processes, the brush head fixing part and the brush tube buckle structure can be combined into one, or the brush tube and the brush handle can adopt an integrated structure without affecting the overall product of a single material.

[0026] In some other embodiments of the present application, the makeup brush of the present application as a whole can also be set to a lipstick-like rotating structure, and the bristles can be rotated out of the brush tube or the brush handle by rotating the brush handle for use, which is more convenient to carry and keep clean.

[0027] In the context of global advocacy of energy conservation, environmental protection and sustainable development, this application has the following advantages:

[0028] Reduce resource consumption: Promoting the recycling and reuse of recycled plastics can reduce the demand for raw materials and thus save resources.

[0029] Reduced energy consumption: Promoting the recycling of recycled plastics requires less energy than making new plastics, thus reducing energy consumption and carbon emissions.

[0030] Reducing waste and pollution: Promoting the recycling and reuse process of recycled plastics helps reduce waste generation and pollution to the environment. If plastic waste is directly discarded, it will accumulate in landfills or pollute water bodies, while the use of recycled plastics can reduce the amount of these wastes.

[0031] Improve circular economy: The use of recycled plastics promotes the realization of a circular economy, transforming waste plastics into useful products, extending their lifespan and reducing dependence on natural resources.

[0032] Lower costs: Recycled plastics cost less than new plastics because the cost of recycling and reuse is relatively low.

[0033] The features and performance of the present application are further described in detail below in conjunction with the embodiments.

[0034] Example 1

[0035] A PBT makeup brush without glue, comprising a brush head, a brush tube and a brush handle, and also a brush head fixing part. The makeup brush is prepared by the following method:

[0036] Making bristles: Dry the PBT plastic particles in a dryer at 135°C, put them into a wire drawing machine and pass through different high temperatures (temperatures at different stages are 250°C, 269°C, 269°C, and 260°C), and the die head is 250°C. Pull them into bristle strands with a diameter of 0.1mm. After the strands come out of the die, they are cooled by cooling water, and then drawn and baked (temperatures at different stages are 195°C, 190°C, 185°C, and 185°C) and stretched to improve toughness (stretching ratio 4.2 times), then cut into sections, color them with dyes, dry them to fix the color, and then manually arrange them into bundles for use;

[0037] Making brush head fixing parts: PBT particles are dried in a 135°C drying machine and put into an injection molding machine. The injection molding machine melts the PBT particles at high temperature in a mold to form a mouth tube with a hollow inner wall and a buckle structure on the outer wall;

[0038] Making brush tubes: PBT granules are dried in a 135°C dryer and put into an injection molding machine. The injection molding machine melts the PBT granules at high temperature in a mold to form a brush tube with a hollow inner band, a buckle structure that matches the brush head fixing part on the inner wall, and an internal thread on the lower inner wall;

[0039] Making a brush handle: The PBT particles are dried in a 135°C dryer and put into an injection molding machine. The injection molding machine melts the PBT particles at high temperature in a mold to form a brush handle that is hollow inside and has an outer wall with external threads that match the brush tube.

[0040] Assembly: Fix the bristles to the inner wall of the brush head fixing part by ultrasonic technology; fix the brush head fixing part in the brush tube by snapping on both sides; fix the brush tube to the brush handle by screwing.

[0041] The packaging and assembly relationship of its various components is as follows Figure 1 As shown, the actual product (without bristles) is as Figure 2 shown.

[0042] Example 2

[0043] A PBT makeup brush without glue, comprising a brush head, a brush tube and a brush handle, and also a brush head fixing part. The makeup brush is prepared by the following method:

[0044] Making bristles: Dry the PBT plastic granules in a dryer at 135°C, put them into a wire drawing machine and pass through different high temperatures (temperatures at different stages are 252°C, 270°C, 270°C, 262°C), and the die head is 253°C. Pull them into bristle strands with a diameter of 0.15mm. After the strands come out of the mold, they are cooled by cooling water, and then drawn and baked (temperatures at different stages are 194°C, 190°C, 187°C, 185°C) and stretched to improve toughness (stretching ratio 4.5 times), then cut into sections, color them with dyes, dry them to fix the color, and then manually arrange them into bundles for later use;

[0045] Making brush head fixing parts: PBT particles are dried in a 135°C drying machine and put into an injection molding machine. The injection molding machine melts the PBT particles at high temperature in a mold to form a mouth tube with a hollow inner wall and a buckle structure on the outer wall;

[0046] Making brush tubes: PBT granules are dried in a 135°C dryer and put into an injection molding machine. The injection molding machine melts the PBT granules at high temperature in a mold to form a brush tube with a hollow inner band, a buckle structure that matches the brush head fixing part on the inner wall, and an internal thread on the lower inner wall;

[0047] Making a brush handle: The PBT particles are dried in a 135°C dryer and put into an injection molding machine. The injection molding machine melts the PBT particles at high temperature in a mold to form a brush handle that is hollow inside and has an outer wall with external threads that match the brush tube.

[0048] Assembly: Fix the bristles to the inner wall of the brush head fixing part by ultrasonic technology; fix the brush head fixing part in the brush tube by snapping on both sides; fix the brush tube to the brush handle by screwing.

[0049] Example 3

[0050] A PBT makeup brush without glue, comprising a brush head, a brush tube and a brush handle, and also a brush head fixing part. The makeup brush is prepared by the following method:

[0051] Making bristles: Dry the PBT plastic granules in a dryer at 135°C, put them into a wire drawing machine and pass through different high temperatures (temperatures at different stages are 250°C, 268°C, 270°C, and 262°C), and the die head is 251°C. Pull them into bristle strands with a diameter of 0.2mm. After the strands come out of the die, they are cooled by cooling water, and then drawn and baked (temperatures at different stages are 196°C, 190°C, 187°C, and 185°C) and stretched to improve toughness (stretching ratio 4.5 times), then cut into sections, color them with dyes, dry them to fix the color, and then manually arrange them into bundles for later use;

[0052] Making brush head fixing parts: PBT particles are dried in a 135°C drying machine and put into an injection molding machine. The injection molding machine melts the PBT particles at high temperature in a mold to form a mouth tube with a hollow inner wall and a buckle structure on the outer wall;

[0053] Making brush tubes: PBT granules are dried in a 135°C dryer and put into an injection molding machine. The injection molding machine melts the PBT granules at high temperature in a mold to form a brush tube with a hollow inner band and a buckle structure on the inner wall that matches the brush head fixing part and a buckle structure on the lower part of the inner wall;

[0054] Making a brush handle: The PBT granules are dried in a 135°C dryer and put into an injection molding machine. The injection molding machine melts the PBT granules at high temperature in a mold to form a brush handle that is hollow inside and has an outer wall with a snap-on structure that matches the brush tube.

[0055] Assembly: Fix the bristles to the inner wall of the brush head fixing part by ultrasonic technology; fix the brush head fixing part in the brush tube by snapping on both sides; fix the brush tube to the brush handle by snapping.

[0056] Example 4

[0057] A PBT makeup brush without glue, comprising a brush head, a brush tube and a brush handle, and also a brush head fixing part. The makeup brush is prepared by the following method:

[0058] In this embodiment, 1% by weight of degradation yeast was added to the PBT plastic;

[0059] Making bristles: Dry the PBT plastic particles in a dryer at 138°C, put them into a wire drawing machine and pass through different high temperatures (temperatures at different stages are 248°C, 269°C, 270°C, and 260°C), and the die head is 250°C. Pull them into bristle strands with a diameter of 0.2mm. After the strands come out of the die, they are cooled by cooling water, and then drawn and baked (temperatures at different stages are 196°C, 190°C, 188°C, and 185°C) and stretched to improve toughness (stretching ratio 4.3 times), then cut into sections, color them with dyes, dry them to fix the color, and then manually arrange them into bundles for use;

[0060] Making brush head fixing parts: PBT particles are dried in a 138°C drying machine and put into an injection molding machine. The injection molding machine melts the PBT particles at high temperature in a mold to form a mouth tube with a hollow inner wall and a buckle structure on the outer wall;

[0061] Making brush tubes: PBT granules are dried in a 138°C dryer and put into an injection molding machine. The injection molding machine melts the PBT granules at high temperature in a mold to form a brush tube with a hollow inner band and a buckle structure on the inner wall that matches the brush head fixing part and a buckle structure on the lower part of the inner wall;

[0062] Making a brush handle: The PBT granules are dried in a 138°C dryer and put into an injection molding machine. The injection molding machine melts the PBT granules at high temperature in a mold to form a brush handle that is hollow inside and has a snap-on structure on the outer wall that matches the brush tube.

[0063] Assembly: Fix the bristles to the inner wall of the brush head fixing part by ultrasonic technology; fix the brush head fixing part in the brush tube by snapping on both sides; fix the brush tube to the brush handle by snapping.

[0064] Example 5

[0065] A PBT makeup brush without glue, comprising a brush head, a brush tube and a brush handle, and also a brush head fixing part. The makeup brush is prepared by the following method:

[0066] In this embodiment, 0.5% by weight of degradation yeast was added to the PBT plastic;

[0067] Making bristles: Dry the PBT plastic particles in a dryer at 135°C, put them into a wire drawing machine and pass through different high temperatures (temperatures at different stages are 248°C, 269°C, 270°C, and 260°C), and the die head is 250°C. Pull them into bristle strands with a diameter of 0.08mm. After the strands come out of the die, they are cooled by cooling water, and then drawn and baked (temperatures at different stages are 196°C, 190°C, 188°C, and 185°C) and stretched to improve toughness (stretching ratio 4.3 times), then cut into sections, color them with dyes, dry them to fix the color, and then manually arrange them into bundles for later use;

[0068] Brush head fixing part - brush tube integrated molding: PBT particles are dried in a 135°C dryer and put into an injection molding machine. The injection molding machine melts the PBT particles in a high-temperature mold to form a card brush head fixing part - brush tube integrated molding structure. The structure is hollow and has a buckle structure on the inner wall at the lower end;

[0069] Making a brush handle: The PBT granules are dried in a 135°C dryer and put into an injection molding machine. The injection molding machine melts the PBT granules at high temperature in a mold to form a brush handle that is hollow inside and has an outer wall with a snap-on structure that matches the brush tube.

[0070] Assembly: fix the bristles to the upper inner wall of the brush head fixing part-brush tube integrated structure by ultrasonic technology; fix the brush head fixing part-brush tube integrated structure to the brush handle by snap-fitting.

[0071] Example 6

[0072] A PBT makeup brush without glue, comprising a brush head, a brush tube and a brush handle, and also a brush head fixing part. The makeup brush is prepared by the following method:

[0073] Making bristles: Dry the PBT plastic particles in a dryer at 135°C, put them into a wire drawing machine and pass through different high temperatures (temperatures at different stages are 250°C, 269°C, 269°C, and 260°C), and the die head is 250°C. Pull them into bristle strands with a diameter of 0.1mm. After the strands come out of the die, they are cooled by cooling water, and then drawn and baked (temperatures at different stages are 195°C, 190°C, 185°C, and 185°C) and stretched to improve toughness (stretching ratio 4.2 times), then cut into sections, color them with dyes, dry them to fix the color, and then manually arrange them into bundles for use;

[0074] Making brush head fixing parts: PBT particles are dried in a 135°C drying machine and put into an injection molding machine. The injection molding machine melts the PBT particles at high temperature in a mold to form a mouth tube with a hollow inner wall and a buckle structure on the outer wall;

[0075] Making a brush tube and a brush handle: The PBT particles are dried in a 135°C dryer and put into an injection molding machine. The injection molding machine melts the PBT particles at high temperature in a mold to form an integrated brush tube and brush handle structure with a hollow interior and a snap-fit ​​structure on the upper inner wall that matches the brush head fixing.

[0076] Assembly: Fix the bristles to the inner wall of the brush head fixing part by ultrasonic technology; fix the brush head fixing part to the brush tube-brush handle integrated structure by buckling on both sides. Figure 3 shown.

[0077] In summary, the glue-free makeup brush of the embodiment of the present application has the following advantages:

[0078] 1. The bristles of the present application are fixed to the mouth tube of the brush head fixing part by ultrasonic means, the mouth tube of the brush head fixing part is fixed to the brush tube by a snap buckle, and the brush tube is fixed to the brush handle by a snap buckle or a thread. The whole cosmetic brush is assembled and prepared in this way without the need for glue, and the process of preparation and use will not generate harmful gases. There is no need to remove the glue during recycling, which is more convenient for recycling and meets the needs of environmental protection.

[0079] 2. The bristles, bristle fixings, brush tubes and brush handles of the present application are all made of the same raw material, PBT plastic, so that the makeup brushes do not need to be disassembled and classified when they are recycled. The entire makeup brush can be recycled for waste recycling, which simplifies the recycling procedure, saves costs, and has economic benefits.

[0080] 3. In the preferred embodiment of the present application, degradable yeast can be added to the PBT plastic, so that the entire makeup brush can be naturally degraded in a certain environment, which is more environmentally friendly and efficient.

[0081] In summary, the PBT plastic glue-free makeup brush of the present application has the advantages of reducing resource consumption, reducing energy consumption, reducing waste and pollution, improving circular economy, and reducing production costs.

[0082] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present application.

Claims

1. A PBT makeup brush without glue, comprising a brush head, a brush tube and a brush handle, characterized in that: It also includes a brush head fixing part, one end of the brush head is fixed in the brush head fixing part, the brush head fixing part is fixed to one end of the brush tube, and the other end of the brush tube is fixed to the brush handle; the brush head, brush head fixing part, brush tube and brush handle are all made of PBT material.

2. A PBT glue-free cosmetic brush according to claim 1, characterized in that: The brush head is fixed in the brush head fixing part by ultrasonic process.

3. A PBT glue-free cosmetic brush according to claim 1, characterized in that: The brush head fixing piece is fixed in the brush tube by means of a buckle.

4. A PBT glue-free cosmetic brush according to claim 1, characterized in that: The other end of the brush tube is fixed on the brush handle through a buckle or a thread.

5. A PBT glue-free cosmetic brush according to claim 1, characterized in that: The PBT material also contains degradation yeast.

6. A PBT glue-free cosmetic brush according to claim 5, characterized in that: The added amount of the degradation yeast is 1%.

7. A PBT glue-free cosmetic brush according to claim 1, characterized in that: The PBT material of the brush head fixing part, the brush tube and the brush handle also contains pigment.

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