A brush manufacturing process

Abstract

The application discloses a brush manufacturing process. The brush manufacturing process comprises the following steps: sequentially threading each tuft of bristles through a limiting hole of a bristle fixing jig and a bristle fixing hole of an inner backing sheet; fixing the bristles by arranging bristle fixing glue at the bristle fixing hole of the inner backing sheet away from the bristle fixing jig; baking the bristle fixing jig and the inner backing sheet with the bristles threaded therethrough together at a first preset temperature value for a first preset time duration, so that the bristles evaporate water; immersing the bristle fixing jig and the inner backing sheet with the bristles threaded therethrough together in water at a second preset temperature value for a second preset time duration, so that the dehydrated bristles are rehydrated; and baking the bristle fixing jig and the inner backing sheet with the bristles threaded therethrough together again at a third preset temperature value for a third preset time duration, so that the rehydrated bristles are dehydrated. The brush manufacturing process provided by the application enables the bristles to undergo the processes of dehydration, rehydration and redehydration in a gathered state, so that each tuft of bristles can maintain a straight and gathered state.

Description

Technical Field

[0001] This application relates to the field of brush manufacturing technology, and more particularly to a brush manufacturing process. Background Technology

[0002] Boar bristles are a type of animal hair that is tough, elastic, resistant to deformation, and anti-static. Their anti-static properties make them suitable for combing hair. Existing boar bristle combs include a handle and an inner liner installed within the handle. The inner liner has holes for securing the bristles. However, due to the inherent flexibility and elasticity of boar bristles, the individual tufts of bristles within these holes do not gather well, preventing the comb from penetrating deeply into the thicker hair layers to reach the scalp, resulting in poor combing performance. Summary of the Invention

[0003] This application provides a brush manufacturing process to solve the problem in the prior art where the bristles, due to their degree of bending and elasticity, result in poor gathering of each clump of bristles within the bristle pores.

[0004] To address the above problems, this application provides: a brush manufacturing process, comprising:

[0005] S1: Provides bristles, which are divided into multiple clumps, and the bristles are natural animal hair;

[0006] S2: Pass each clump of bristles through the limiting hole of the bristle fixing tool and the bristle fixing hole of the inner liner in sequence.

[0007] S3: Apply bristle-fixing adhesive to the bristle-fixing holes on the side of the inner liner away from the bristle-fixing fixture to fix each clump of bristles located at each bristle-fixing hole.

[0008] S4: Place the bristle-fixing tool and the inner lining sheet together in the drying equipment and bake them at the first preset temperature for the first preset time to evaporate the moisture in the bristles until the moisture content of the bristles is reduced to below the first preset moisture content.

[0009] S5: Place the bristle-fixing tool and the inner lining together in water at a second preset temperature for a second preset time to rehydrate the dehydrated bristles until the moisture content of the bristles rises to above the second preset moisture content.

[0010] S6: Place the bristle-fixing tool and the inner lining sheet together in the drying equipment again, and bake them at the third preset temperature for the third preset time to make the rehydrated bristles lose water until the moisture content of the bristles is reduced to below the third preset moisture content.

[0011] Wherein, the first preset moisture content is less than the third preset moisture content, and the third preset moisture content is less than the second preset moisture content.

[0012] In one possible implementation, S1 further includes: screening the bristles, retaining unbranched bristles and / or bristles larger than a preset diameter.

[0013] In one possible implementation, the wool-fixing adhesive is a thermosetting adhesive that can be cured at a first preset temperature value.

[0014] In one possible implementation, the bristle fixing tool can fit into the inner liner, and the bristle fixing tool has a plurality of limiting holes, the positions of the plurality of limiting holes corresponding one-to-one with the bristle fixing holes of the inner liner, and the bristles can pass through the limiting holes and the bristle fixing holes.

[0015] In one possible implementation, S3 further includes: placing the inner liner sheet with bristles and the bristle fixing tool together between the first clamping plate and the second clamping plate of the brush root fixture, and allowing the bristles exposed from the side of the inner liner sheet away from the bristle fixing tool to pass through the screen printing holes on the first clamping plate, and then applying bristle fixing adhesive to the side of the first clamping plate away from the inner liner sheet to fill the screen printing holes, thereby fixing each clump of bristles at each bristle fixing hole.

[0016] In one possible implementation, the brush root fixture includes a connecting post, a first clamping plate, and a second clamping plate. The connecting post is slidably inserted through the first clamping plate and connected to the second clamping plate. The first clamping plate has a plurality of screen printing holes, and the positions of the plurality of screen printing holes correspond one-to-one with the positions of the plurality of hair-fixing holes.

[0017] In one possible implementation, the brush-making process further includes S7:

[0018] Once the moisture content of the bristles has decreased to below the third preset moisture content, apply reinforcing adhesive to the side of the inner liner where the bristle-fixing adhesive is located.

[0019] In one possible implementation, S7 further includes:

[0020] Place the bristle-fixing tool and the inner liner together between the first and second fixed plates of the brush surface fixture, and align the side of the inner liner with the bristle-fixing adhesive printed on it with the position of the brush surface opening on the first fixed plate. Then, apply reinforcing adhesive inside the brush surface opening and on the side of the inner liner with the bristle-fixing adhesive printed on it.

[0021] In one possible implementation, the brushing fixture includes a fixed post, a first fixed plate, and a second fixed plate. The fixed post is slidably connected to the first fixed plate and the second fixed plate. The first fixed plate has brushing openings corresponding to the positions of a plurality of hair-fixing holes.

[0022] In one possible implementation, the brush manufacturing process further includes S8: placing the bristle-fixing mold and the inner lining sheet with the bristles on them in a preset humidity environment for a fourth preset time to allow the reinforcing adhesive to dry naturally.

[0023] The beneficial effects of this application are as follows: This application proposes a brush manufacturing process. During brush manufacturing, firstly, each clump of bristles is passed sequentially through a bristle-fixing fixture and an inner liner to ensure the bristles remain straight and gathered under the constraint of the limiting holes. Then, bristle-fixing adhesive is applied to the bristle-fixing holes of the inner liner to secure the bristles. Finally, the bristles undergo a series of drying and dehydration processes, followed by water bath rehydration and another drying and dehydration process. In these processes, the bristles first lose a certain amount of moisture through drying, causing the bristles to lose elasticity. Then, they undergo rehydration to restore their elasticity and maintain a straight, gathered shape. Finally, the bristles undergo another drying process to reduce the moisture content to near the initial moisture content level, thus preventing the bristles from losing moisture during use due to excessive moisture, which could lead to deformation. Therefore, the process of dehydration, rehydration, and further dehydration under the constraint of the limiting holes can fix the shape of the bristles, ensuring that each clump of bristles remains straight and gathered. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A flowchart of the brush manufacturing process provided by an embodiment of the present invention is shown;

[0026] Figure 2 An exploded structural diagram of the bristle-fixing tool provided in an embodiment of the present invention is shown;

[0027] Figure 3 A schematic diagram of the structure of the bristle-fixing tool provided in an embodiment of the present invention is shown;

[0028] Figure 4 A schematic diagram of the brushing fixture provided in an embodiment of the present invention is shown.

[0029] Explanation of key component symbols:

[0030] 100-Fixing tool; 110-Limiting hole; 200-Brush root tool; 210-First clamping plate; 211-Silicone printing hole; 220-Second clamping plate; 230-Connecting post; 300-Brush surface tool; 310-Fixing post; 320-First fixing plate; 321-Brush surface opening; 330-Second fixing plate; 400-Inner liner; 410-Fixing hole. Detailed Implementation

[0031] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0032] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0034] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] Example 1

[0037] Please see Figure 1 This embodiment provides a brush manufacturing process, including:

[0038] S1: Provides brush bristles, which are divided into multiple clumps and are made of natural animal hair.

[0039] Specifically, when the bristles are made of animal hair such as pig bristles, the diameter of the bristles is small and the strength of a single bristle is insufficient. Therefore, by dividing the bristles into multiple clumps and increasing the number of bristles in each clump, the strength of the bristles is increased, ensuring that the bristles of the finished brush meet the strength requirements and can penetrate deep into the hair layer to reach the scalp layer.

[0040] S2: Pass each clump of bristles sequentially through the limiting hole 110 of the bristle fixing tool 100 and the bristle fixing hole 410 of the inner liner 400.

[0041] Specifically, such as Figure 2 As shown, each clump of bristles is passed through the limiting hole 110 of the bristle fixing tool 100 and the bristle fixing hole 410 of the inner liner 400, thereby limiting the bristles through the limiting hole 110 and the bristle fixing hole 410, so that the bristles can always remain folded and straight in subsequent processes.

[0042] S3: Apply bristle-fixing adhesive to the bristle-fixing hole 410 on the side of the inner liner 400 away from the bristle-fixing fixture 100 to fix each clump of bristles located at each bristle-fixing hole 410.

[0043] Specifically, a bristle-fixing adhesive is provided at the bristle-fixing hole 410 on the side of the inner liner 400 away from the bristle-fixing fixture 100. The bristle-fixing adhesive can fix the inner liner 400 and the bristles exposed from the bristle-fixing hole 410 of the inner liner 400. This arrangement can improve the connection strength between the bristles and the inner liner 400 and prevent the bristles from separating from the inner liner 400 along the bristle axis.

[0044] S4: Place the bristle-fixing tool 100 and the inner lining sheet 400 together in the drying equipment and bake them at the first preset temperature for the first preset time to evaporate the moisture of the bristles until the moisture content of the bristles is reduced to below the first preset moisture content.

[0045] Specifically, the bristles can lose moisture by being dried under the control of the limiting hole 110 and the bristle fixing hole 410, thereby causing the bristles to lose elasticity and maintain a closed and straight shape.

[0046] The first preset temperature can be in the range of 110℃ to 150℃, the first preset duration can be in the range of 50 minutes to 100 minutes, and the first moisture content can be in the range of 0% to 40%.

[0047] S5: Place the bristle-fixing tool 100 and the inner lining 400 together in water at a second preset temperature for a second preset time to rehydrate the dehydrated bristles until the moisture content of the bristles rises to above the second preset moisture content.

[0048] Specifically, the bristles that have lost water can be rehydrated by a water bath under the constraints of the limiting hole 110 and the bristle fixing hole 410, thereby restoring the elasticity of the bristles and maintaining their closed and straight shape.

[0049] The method of rehydrating brush bristles is not limited to water bath; steaming or boiling can also be used to rehydrate dehydrated brush bristles.

[0050] The second preset temperature can be in the range of 80℃ to 100℃, the second preset duration can be in the range of 10 minutes to 50 minutes, and the second moisture content can be in the range of 70% to 90%.

[0051] S6: Place the bristle-fixing tool 100 and the inner liner 400 together in the drying equipment again, and bake them at the third preset temperature for the third preset time, so that the rehydrated bristles lose water until the moisture content of the bristles is reduced to below the third preset moisture content.

[0052] Specifically, the bristles can be dried again under the control of the limiting hole 110 and the bristle fixing hole 410, thereby restoring the bristles to their initial moisture content level. This allows the bristles to remain closed and straight for a long time, avoiding the process of bristles losing water and deforming due to excessive moisture content. At the same time, an appropriate moisture content can improve the strength of the bristles.

[0053] The third preset temperature can be in the range of 110℃ to 150℃, the third preset duration can be in the range of 30 minutes to 70 minutes, and the third moisture content can be in the range of 20% to 50%.

[0054] The first preset moisture content is less than the third preset moisture content, and the third preset moisture content is less than the second preset moisture content.

[0055] This application provides a brush manufacturing process. During brush manufacturing, firstly, each clump of bristles is sequentially passed through a bristle-fixing fixture 100 and an inner liner 400, ensuring the bristles remain straight and gathered under the constraint of the limiting holes 110. Then, bristle-fixing adhesive is applied to the bristle-fixing holes 410 of the inner liner 400 to secure the bristles. Finally, the bristles undergo a series of drying and dehydration processes, followed by a water bath rehydration and another drying and dehydration process. In these processes, the bristles first lose a certain amount of moisture through drying, causing the bristles to lose elasticity. Then, they undergo rehydration to restore their elasticity and maintain a straight, gathered shape. Finally, the bristles undergo another drying process to reduce the moisture content to near the initial moisture level, thus preventing the bristles from losing moisture during use due to excessive moisture and causing deformation. Therefore, the process of dehydration, rehydration, and further dehydration under the constraint of the limiting holes 110 secures the bristles' shape, ensuring that each clump of bristles remains straight and gathered.

[0056] The bristles can be made from animal hair such as pig bristles.

[0057] In the above embodiments, S1 may optionally include: screening the bristles, retaining unbranched bristles and / or bristles with a diameter greater than a preset value.

[0058] Specifically, bristles that are not split or have a larger diameter have higher strength and can remain straight and closed for a longer period of time during use, which helps extend the life of the brush.

[0059] In the above embodiments, optionally, the wool-fixing adhesive is a thermosetting adhesive, which can be cured at a first preset temperature value.

[0060] Specifically, when the bristle-fixing adhesive is a thermosetting adhesive, when the bristle-fixing adhesive is cured at the first preset temperature value, the bristle-fixing adhesive can form a stable connection with the gathered and straight bristles. Therefore, the bristle-fixing adhesive after high-temperature curing can fix the bristles. When the inner liner 400 is bent and deformed, and when the limiting hole 110 is deformed, each clump of bristles can still maintain the effect of being gathered and straight under the fixation of the bristle-fixing adhesive, so that each clump of bristles can penetrate a thicker layer of hair and contact the scalp layer when in use.

[0061] Among them, the hair-fixing adhesive can be a thermosetting resin material.

[0062] Example 2

[0063] like Figure 2As shown, this embodiment proposes a configuration of the bristle-fixing tool 100 based on Embodiment 1. The bristle-fixing tool 100 can fit into the inner liner 400, and the bristle-fixing tool 100 has multiple limiting holes 110. The positions of the multiple limiting holes 110 correspond one-to-one with the bristle-fixing holes 410 of the inner liner 400, and the bristles can pass through the limiting holes 110 and the bristle-fixing holes 410.

[0064] Specifically, the bristles are passed through the limiting hole 110 of the bristle fixing tool 100 and the bristle fixing hole 410 of the inner liner 400, thereby limiting the bristles through the limiting hole 110 and the bristle fixing hole 410, so that the bristles can always remain in a closed and straight state in subsequent processes.

[0065] Example 3

[0066] like Figure 3 As shown, this embodiment proposes a configuration of the brush root fixture 200 based on Embodiment 1 or Embodiment 2. S3 further includes: placing the inner liner 400 with brush bristles and the bristle fixing tool 100 together between the first clamping plate 210 and the second clamping plate 220 of the brush root fixture 200, and allowing the brush bristles exposed from the side of the inner liner 400 away from the bristle fixing tool 100 to pass through the screen printing holes 211 on the first clamping plate 210, and then applying bristle fixing adhesive to the side of the first clamping plate 210 away from the inner liner 400 to fill the screen printing holes 211, thereby fixing each clump of brush bristles at each bristle fixing hole 410.

[0067] Specifically, during the screen printing process, since the positions of the screen printing holes 211 and the bristle fixing holes 410 of the inner lining sheet 400 correspond one-to-one, and the bristle fixing adhesive can be evenly filled into the screen printing holes 211 during the application process, the screen printing holes 211 can limit the position and area of ​​the bristle fixing adhesive, thereby ensuring the consistency of the filling amount of the bristle fixing adhesive, thereby improving the fixing effect between the bristle fixing adhesive and the bristles and increasing production efficiency.

[0068] like Figure 3 As shown, in the above embodiment, optionally, the brush root tool 200 includes a connecting post 230, a first clamping plate 210 and a second clamping plate 220. The connecting post 230 is slidably inserted through the first clamping plate 210 and connected to the second clamping plate 220. The first clamping plate 210 has a plurality of screen printing holes 211, and the positions of the plurality of screen printing holes 211 correspond one-to-one with the positions of the plurality of hair-fixing holes 410.

[0069] Specifically, during screen printing, the inner lining sheet 400 and the bristle fixing tool 100 are first placed on the second clamping plate 220, and the first clamping plate 210 is slid toward the inner lining sheet 400 until the first clamping plate 210 abuts against the inner lining sheet 400 and the positions of the screen printing holes 211 and the bristle fixing holes 410 of the inner lining sheet 400 correspond one-to-one. Then, the bristle fixing adhesive is evenly filled into the screen printing holes 211, so that the screen printing holes 211 can restrict the position and area of ​​the bristle fixing adhesive, thereby ensuring the consistency of the filling amount of bristle fixing adhesive, thereby improving the fixing effect between the bristle fixing adhesive and the bristles and improving production efficiency.

[0070] In the above embodiments, optionally, the brush manufacturing process further includes S7: after the moisture content of the brush bristles is reduced to below the third preset moisture content, a reinforcing adhesive is applied to the side of the inner liner 400 where the bristle-fixing adhesive is provided.

[0071] Specifically, reinforcing adhesive is applied to the side of the inner liner 400 that has the wool-fixing adhesive, thereby covering the wool-fixing adhesive and the inner liner 400 with reinforcing adhesive, and thus improving the connection strength between the wool-fixing adhesive and the inner liner 400.

[0072] The reinforcing adhesive can be made of silicone.

[0073] Example 4

[0074] like Figure 4 As shown, this embodiment proposes a configuration method for the brush surface fixture 300 based on embodiments one to three. S7 further includes: placing the bristle-fixing fixture 100 and the inner liner 400 together between the first fixing plate 320 and the second fixing plate 330 of the brush surface fixture 300, and aligning the side of the inner liner 400 with the bristle-fixing adhesive printed on it with the position of the brush surface opening 321 on the first fixing plate 320, and then applying reinforcing adhesive inside the brush surface opening 321 and on the side of the inner liner 400 with the bristle-fixing adhesive printed on it.

[0075] Specifically, during the application of the reinforcing adhesive, the brush opening 321 corresponds to the multiple pores 410 of the inner lining sheet 400, which allows the brush opening 321 to limit the position and area of ​​the reinforcing adhesive application, thereby improving the fixing effect between the reinforcing adhesive and the inner lining sheet 400 and increasing production efficiency.

[0076] like Figure 4 As shown, in the above embodiment, optionally, the brushing fixture 300 includes a fixing post 310, a first fixing plate 320 and a second fixing plate 330. The fixing post 310 is slidably connected to the first fixing plate 320 and the second fixing plate 330. The first fixing plate 320 has a brushing opening 321 corresponding to the position of the plurality of hair-fixing holes 410.

[0077] Specifically, the bristle-fixing fixture 100 and the inner lining sheet 400 are first placed together on the second fixing plate 330. Then, the first fixing plate 320 is slid towards the inner lining sheet 400 until the first fixing plate 320 abuts against the inner lining sheet 400 and the brush opening 321 corresponds to the positions of the multiple bristle-fixing holes 410. Then, reinforcing adhesive is applied into the brush opening 321. In this process, because the brush opening 321 corresponds to the positions of the multiple bristle-fixing holes 410 of the inner lining sheet 400, the brush opening 321 can limit the position and area of ​​the reinforcing adhesive application, thereby improving the fixing effect between the reinforcing adhesive and the inner lining sheet 400 and increasing production efficiency.

[0078] In the above embodiment, S8 is also included: placing the bristle-attached fixing tool 100 and the inner lining sheet 400 in a preset humidity environment for a fourth preset time to allow the reinforcing adhesive to dry naturally.

[0079] Specifically, the adhesive is left to stand for a fourth preset time under a preset humidity environment, allowing the adhesive to dry naturally, thereby improving the curing effect of the adhesive and thus improving the fixing effect between the adhesive and the inner lining sheet 400.

[0080] The preset humidity can be set between 40% and 90%, and the fourth preset duration can exceed 12 hours.

[0081] After the reinforcing adhesive has cured, the inner liner 400 can be separated from the bristle fixing tool 100, and the inner liner 400 can be installed on the brush handle.

[0082] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0083] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A brush manufacturing process, characterized in that, include: S1: Provides bristles, which are divided into multiple clumps, and the bristles are natural animal hair; S2: Pass each clump of bristles through the limiting hole of the bristle fixing tool and the bristle fixing hole of the inner liner in sequence. S3: Apply bristle-fixing adhesive to the bristle-fixing holes on the side of the inner liner away from the bristle-fixing fixture to fix each clump of bristles at each bristle-fixing hole; S3 further includes: placing the inner liner with bristles and the bristle-fixing fixture together between the first clamping plate and the second clamping plate of the brush root fixture, and allowing the bristles exposed from the side of the inner liner away from the bristle-fixing fixture to pass through the screen printing holes on the first clamping plate, and then applying bristle-fixing adhesive to the side of the first clamping plate away from the inner liner to fill the screen printing holes, thereby fixing each clump of bristles at each bristle-fixing hole. S4: Place the bristle-fixing tool and the inner lining sheet together in the drying equipment and bake them at the first preset temperature for the first preset time to evaporate the moisture in the bristles until the moisture content of the bristles is reduced to below the first preset moisture content. S5: Place the bristle-fixing tool and the inner lining together in water at a second preset temperature for a second preset time to rehydrate the dehydrated bristles until the moisture content of the bristles rises to above the second preset moisture content. S6: Place the bristle-fixing tool and the inner lining sheet together in the drying equipment again, and bake them at the third preset temperature for the third preset time to make the rehydrated bristles lose water until the moisture content of the bristles is reduced to below the third preset moisture content. Wherein, the first preset moisture content is less than the third preset moisture content, and the third preset moisture content is less than the second preset moisture content; S7: After the moisture content of the bristles drops below the third preset moisture content, apply reinforcing adhesive to the side of the inner liner where the bristle-fixing adhesive is provided. The first preset moisture content is 0%–40%; the second preset moisture content is 70%–90%; and the third preset moisture content is 20%–50%.

2. The brush manufacturing process according to claim 1, characterized in that, S1 further includes: screening the bristles, retaining unbranched bristles and / or bristles with a preset diameter.

3. The brush manufacturing process according to claim 1, characterized in that, The wool-curing adhesive is a thermosetting adhesive that can be cured at a first preset temperature.

4. The brush manufacturing process according to claim 1, characterized in that, The bristle fixing tool can fit into the inner lining sheet, and the bristle fixing tool has multiple limiting holes, the positions of the multiple limiting holes correspond one-to-one with the bristle fixing holes of the inner lining sheet, and the bristles can pass through the limiting holes and the bristle fixing holes.

5. The brush manufacturing process according to claim 1, characterized in that, The brush root fixture also includes a connecting post, which is slidably inserted through the first clamping plate and connected to the second clamping plate. The first clamping plate has multiple screen printing holes, and the positions of the multiple screen printing holes correspond one-to-one with the positions of the multiple hair-fixing holes.

6. The brush manufacturing process according to claim 1, characterized in that, The S7 also includes: Place the bristle-fixing tool and the inner liner together between the first and second fixed plates of the brush surface fixture, and align the side of the inner liner with the bristle-fixing adhesive printed on it with the position of the brush surface opening on the first fixed plate. Then, apply reinforcing adhesive inside the brush surface opening and on the side of the inner liner with the bristle-fixing adhesive printed on it.

7. The brush manufacturing process according to claim 6, characterized in that, The brushing fixture also includes a fixing post, which is slidably connected to the first fixing plate and the second fixing plate. The first fixing plate has a brushing opening corresponding to the positions of multiple hair-fixing holes.

8. The brush manufacturing process according to claim 1, characterized in that, It also includes S8: placing the bristle-attached fixing tool and the inner lining sheet in a preset humidity environment for a fourth preset time to allow the reinforcing adhesive to dry naturally.

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