Preparation method of brush fabric, roller brush and preparation method of roller brush

Abstract

The invention relates to the technical field of brushes, in particular to a preparation method of a brush fabric, a roller brush and a preparation method of the roller brush. The preparation method of the brush fabric comprises the following steps: spinning bundle yarns on a single surface of base cloth to form a suede surface to obtain flannelette, wherein through holes are distributed in the base cloth; the bottom face of the flannelette is coated with n layers of adhesives, air is blown towards the bottom face of the flannelette after each layer of adhesive is coated, and air flow generated during air blowing can drive the adhesives close to the through holes to flow to the root of the flannelette face of the flannelette along the through holes; coating the adhesive and blowing air alternately until the thickness of the adhesive reaches a preset thickness and the adhesive is solidified to obtain a brush fabric; wherein n is a natural number and is greater than or equal to 2. Therefore, the problem that wires are easy to fall off in the existing brush is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of brushes. Specifically, it relates to a method for preparing a brush fabric, a roller brush, and a method for preparing a roller brush. Background Art

[0002] The roller brush industry in China started in the 1990s. With the application of new technologies, the popularization of automated equipment, and the improvement of people's requirements, roller brushes have been given many new functions and uses. For surface treatments and painting with some special requirements, special roller brushes are needed. As the main functional material of the roller brush, the brush fabric is required to have new functions to meet people's needs.

[0003] Existing brushes have the problem that the pile filaments are not firm, and it is easy to have filament dropping and filament breakage. In addition, when the brush fabric is adhered to the substrate, there is a problem of insecure adhesion, resulting in the brush fabric falling off during use. Summary of the Invention

[0004] To solve the problem of easy filament dropping in existing brushes, the present invention provides a method for preparing a brush fabric, a roller brush, and a method for preparing a roller brush.

[0005] According to the first aspect of the present invention, a method for preparing a brush fabric is provided, including the following steps:

[0006] Weave the tow on one side of the base fabric to form a pile surface to obtain a flannelette, and the base fabric is provided with through holes;

[0007] Coat n layers of adhesive on the bottom surface of the flannelette, and after each coating of the adhesive, blow air towards the bottom surface of the flannelette. The air flow during the blowing can drive the adhesive near the through holes to flow along the through holes to the root of the pile surface of the flannelette;

[0008] The coating of the adhesive and the blowing are alternately carried out until the thickness of the adhesive reaches a preset thickness and the adhesive solidifies to obtain the brush fabric;

[0009] Wherein, n is a natural number, and n≥2.

[0010] Preferably, when coating the adhesive on the base fabric, place the pile surface of the flannelette downward, lay and tighten the flannelette so that the bottom surface of the flannelette is on the same horizontal plane, and the angle between the blowing direction and the bottom surface of the flannelette is 85-95 degrees.

[0011] Preferably, during the process of alternately coating the adhesive and blowing, when at least part of the adhesive solidifies after the blowing, stop blowing, and then coat a new adhesive on the existing adhesive layer on the flannelette;

[0012] The air blown is cold air.

[0013] Preferably, after the air blown reaches at least partially solidify the adhesive, blow air towards the plush surface of the flannelette until at least partially the adhesive on the plush surface solidifies, then stop blowing air.

[0014] Preferably, use a single monofilament as a single strand, or wind and braid m monofilaments to form a single strand, where m is a natural number and 2 ≤ m ≤ 6, and the adhesive on the root of the plush surface contacts the strand.

[0015] Preferably, use an elastic filament to wrap a single monofilament to form the strand, or use an elastic filament to wrap m monofilaments to form the strand, or use an elastic filament to wrap a single strand formed by winding and braiding m monofilaments, where m is a natural number and 2 ≤ m ≤ 6, and the adhesive on the root of the plush surface contacts the elastic filament.

[0016] Preferably, the D number of the monofilament is from 200D to 600D, the crimp percentage of the monofilament ≥ 70%, and the D number of the elastic filament is from 75D to 150D.

[0017] Preferably, the cross-sectional shape of the monofilament includes circular, triangular, elliptical, rectangular or polygonal.

[0018] Preferably, the monofilament is a bar-shaped rod or a rod with branches on the main body, and the rod is a wavy body or a spiral body.

[0019] Preferably, the materials of the elastic filament and the monofilament include polypropylene fiber, polyester, cotton polyamide or polypropylene; the material of the base fabric includes polyester yarn.

[0020] Preferably, rub the adhesive layer on the brush fabric so that the adhesive layer is distributed with grooves.

[0021] Preferably, the colors of the base fabric and the strand include black, gray, white, red or blue, and the colors of the base fabric and the strand are the same or different.

[0022] Preferably, the distance between adjacent through holes distributed on the base fabric ranges from 0.5 to 1.5 mm, and the aperture of the through holes distributed on the base fabric ranges from 0.5 to 1.5 mm.

[0023] Preferably, until the thickness of the adhesive reaches a preset thickness and the adhesive solidifies, place the flannelette in an environment with a temperature range of 140°C - 150°C for shaping to obtain the brush fabric.

[0024] According to the second aspect of the present invention, the present invention provides a roller brush, including the above-mentioned brush fabric, an adhesive layer and a cylinder.

[0025] According to the third aspect of the present invention, the present invention provides a method for preparing a roller brush, providing the above-mentioned brush fabric, and obtaining the roller brush by bonding the brush fabric on the cylindrical surface of the cylinder body with hot melt adhesive.

[0026] Preferably, the temperature of the hot melt adhesive is 280°C - 300°C.

[0027] To solve the problem that the existing brushes are prone to filament shedding, the present invention has the following advantages:

[0028] 1. By coating the adhesive on the bottom surface of the flannelette in the present invention, the adhesive can flow to the other surface of the flannelette along the through holes, so that the binder can contact the bunch of filaments, thereby having the effect of bonding the bunch of filaments to the base fabric through the binder, and improving the firmness of the bunch of filaments fixed on the base fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Shows a flowchart of the method for preparing the brush fabric of the present invention;

[0030] Figure 2 Shows a physical diagram of the bunch of filaments of the present invention;

[0031] Figure 3 Shows a physical diagram of the uncoated single filament of the present invention;

[0032] Figure 4 Shows a physical diagram of the flannelette of the present invention;

[0033] Figure 5 Shows a physical diagram of the details of the flannelette of the present invention;

[0034] Figure 6 Shows a physical diagram of the roller brush of the present invention;

[0035] Figure 7 Shows a schematic diagram of the single filament in the fishbone state of the present invention.

[0036] Reference numerals: 1 - single filament; 2 - elastic filament. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] Now the content of the present disclosure will be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are only discussed to enable those of ordinary skill in the art to better understand and thus implement the content of the present disclosure, rather than implying any limitation on the scope of the present disclosure.

[0038] As used herein, the term "comprising" and its variants are to be construed as open-ended terms meaning "including but not limited to". The term "based on" is to be construed as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be construed as "at least one embodiment". The term "another embodiment" is to be construed as "at least one other embodiment". The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation. Moreover, in addition to being used to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to specific circumstances. In addition, the terms "mounted", "arranged", "provided with", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral structure; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, or there may be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, the meaning of "a plurality of" is two or more.

[0039] According to a first aspect of the present invention, the present embodiment provides a method for preparing a brush fabric, as Figure 1 shown, comprising the following steps:

[0040] Weave the tow on one side of the base fabric to form a plush surface to obtain a plush cloth, and the base fabric is provided with through holes;

[0041] Coat n layers of adhesive on the bottom surface of the plush cloth, and after each coating of the adhesive, blow air towards the bottom surface of the plush cloth, and the air flow during the blowing can drive the adhesive near the through holes to flow along the through holes to the root of the plush surface of the plush cloth;

[0042] The coating of the adhesive and the blowing are alternately performed until the thickness of the adhesive reaches a preset thickness and the adhesive solidifies to obtain a brush fabric;

[0043] Among them, n is a natural number, and n≥2.

[0044] In this embodiment, as Figure 4 and Figure 5 shown, the bottom surface of the flannelette is the surface of the flannelette where no bunchy filaments are woven, that is, the bottom surface of the flannelette is the surface opposite to the flannelette surface. The flannelette surface is the surface of the flannelette where bunchy filaments are woven. By coating an adhesive on the bottom surface of the flannelette, the adhesive can flow along the through holes to the other surface of the flannelette, that is, the flannelette surface is the surface of the flannelette with bunchy filaments. The root of the bunchy filaments is the part connected to the fabric surface, and the part of the bunchy filaments close to the fabric surface. The adhesive flowing along the through holes to the flannelette can contact the bunchy filaments, so that the bunchy filaments are bonded to the base fabric through the adhesive, improving the firmness of the bunchy filaments fixed on the base fabric to position the position of the bunchy filaments. By coating two or more layers of adhesive on the bottom surface of the flannelette, the stability of the bunchy filaments fixed on the base fabric is ensured. By blowing air after coating the adhesive, the air flow can drive the adhesive to flow, and drive the adhesive located on the through holes of the flannelette (the through holes of the flannelette are the through holes of the base fabric) to flow along the through holes to the root of the flannelette surface, so that the through holes are in an open state, avoiding the adhesive blocking the through holes. The open state of the through holes is convenient for the subsequent brush fabric to be bonded to the substrate through hot melt adhesive to form a brush. The steam generated by the hot melt adhesive can flow out through the through holes, avoiding the problem that the steam generated by the hot melt adhesive cannot flow out in time between the flannelette and the substrate, resulting in cavities when the flannelette is bonded to the substrate, and causing difficulties or insecure bonding between the flannelette and the substrate. Coating the adhesive and blowing air are carried out alternately to ensure the thickness and uniformity of the adhesive coated on the bottom of the flannelette, and at the same time make the adhesive easier to be distributed on the flannelette surface of the flannelette and ensure the amount of adhesive on the flannelette surface of the flannelette. In addition, the through holes are not blocked by the adhesive, so that when the brush fabric is cut into strips, the problem of the cutting edge dropping glue filaments is avoided.

[0045] Preferably, the adhesive is a hot melt adhesive, and the temperature of the hot melt adhesive is 110°C - 130°C. The hot melt adhesive has good fluidity, which is convenient for uniformity when coated on the flannelette fabric surface.

[0046] Preferably, the through holes include but are not limited to rectangular through holes or circular through holes.

[0047] Preferably, when coating the adhesive on the base fabric, the flannelette surface of the flannelette is facing downwards, the flannelette is laid flat and tightened, so that the bottom surface of the flannelette is in the same horizontal plane, and the angle between the blowing direction and the bottom surface of the flannelette is 85 - 95 degrees.

[0048] In this embodiment, through the arrangement method of the flannelette when coating the adhesive and the direction of the moisture, it is convenient to evenly coat the adhesive on the bottom surface of the flannelette, ensuring the consistency of the thickness of the adhesive on the bottom surface of the flannelette after the adhesive flows into the through holes.

[0049] Preferably, during the alternating process of applying the adhesive and blowing air, when at least part of the adhesive has solidified under the blowing air, the blowing stops, and then new adhesive is applied on the adhesive layer already existing on the flannelette.

[0050] The air for blowing is cold air.

[0051] In this embodiment, during the alternating process of applying the adhesive and blowing air, by blowing air until at least part of the adhesive solidifies and then applying a new layer of adhesive, the thickness uniformity of the adhesive applied each time and the amount of adhesive flowing from the through - holes to the fluffy surface of the flannelette are ensured. Air cooling can accelerate the solidification effect of the adhesive. By setting the wind speed, while ensuring the solidification of the adhesive, the flow of the adhesive blocking the through - holes on the surface of the flannelette is ensured, and the large - area flow of the remaining adhesive is reduced. The wind speed range for blowing is within a suitable range and should not be too large, and the wind speed can be adjusted adaptively according to requirements.

[0052] Preferably, when at least part of the adhesive has solidified under the blowing air, blow air towards the fluffy surface of the flannelette until at least part of the adhesive on the fluffy surface has solidified, and then stop blowing.

[0053] In this embodiment, by blowing air towards the fluffy surface of the flannelette, the uniformity of the adhesive flowing on the fluffy surface is ensured, and it also ensures that the adhesive flowing onto the bunch of filaments is close to the surface of the flannelette, avoiding the adhesive affecting subsequent bunch - of - filaments work, and ensuring that there is an appropriate amount of adhesive close to the surface of the flannelette on the bunch of filaments, further ensuring the firmness of the bunch of filaments woven on the base fabric.

[0054] Preferably, as Figure 3 shown, a single single - filament is used as a single bunch of filaments, or m single - filaments are wound and woven to form a single bunch of filaments, where m is a natural number and 2 ≤ m ≤ 6, and the adhesive on the root of the fluffy surface contacts the bunch of filaments.

[0055] In this embodiment, using a single single - filament as a bunch of filaments, it can be twisted and warped for weaving on a general doubling and twisting machine at about 80 twists per meter. The bunch of filaments in this embodiment does not need to be coated, reducing the weaving process.

[0056] Preferably, an elastic filament is used to coat a single single - filament to form the bunch of filaments, or an elastic filament is used to coat m single - filaments to form the bunch of filaments, as Figure 2 shown, or an elastic filament is used to coat a single bunch of filaments formed by winding and weaving m single - filaments, where m is a natural number and 2 ≤ m ≤ 6, and the adhesive on the root of the fluffy surface contacts the elastic filament. Further, the adhesive on the root of the fluffy surface contacts the bunch of filaments through the elastic filament.

[0057] In this embodiment, elastic yarn is used to wrap the yarn, so that the yarn bundle is easy to weave, and the velvet fabric woven by the yarn bundle is compact and not loose, which has a good adsorption effect on the slurry in subsequent work, reduces the number of times of sticking the material, and increases the area that the brush can cover after sticking the material once.

[0058] Preferably, the adhesive on the root of the pile surface deeply penetrates into the elastic yarn and contacts the bundle yarn, so that the adhesive on the root of the pile surface is simultaneously connected to the elastic yarn and the bundle yarn, providing a firm performance of connecting the bundle yarn to the base fabric.

[0059] Preferably, the adhesive is hot glue, and the temperature of the hot glue is 110°C-130°C. When the adhesive is hot glue, when the hot glue flows to the root of the suede and contacts the elastic thread, at least part of the elastic thread is affected by the temperature of the hot glue, and the elastic thread will shrink to the root of the bundle. The root of the bundle is the part where the bundle is connected to the base cloth and the part where the bundle is close to the base cloth, thereby promoting the absorption of the adhesive and achieving the effect of retaining the adhesive.

[0060] Preferably, a braiding machine is used to braid m single filaments into bundles of wires, a covering machine is used to cover the m single filaments with elastic wires, and a double-sided rapier machine is used as a weaving machine to weave the bundles of wires onto the surface of the base cloth. Specifically, a No. 53 steel machine can be used to weave the bundles of wires onto the surface of the base cloth. When the width of the flannel is 1.6m, a total of 848 bundles of wires are required for weaving, that is, the product of 53 and the width of the flannel 1.6 is 848, and the number of bundles of wires is obtained by analogy for different widths.

[0061] Preferably, the elastic yarn is a heavy mesh low-elastic yarn.

[0062] Preferably, the D number of the monofilament is 200D-600D, the curling degree of the monofilament is ≥70%, and the D number of the elastic yarn is 75D-150D.

[0063] In this embodiment, a single yarn with a suitable D number can be selected according to the requirements of softness and hardness. The D number of the elastic yarn is smaller than the D number of the single yarn, so that it is easy to form a bundle of yarns by covering multiple single yarns with the elastic yarn. It is also convenient for the adhesive to flow to the velvet surface with the bundle of yarns. The adhesive, which is a hot glue, releases heat during the solidification process, and the elastic yarn shrinks, so that the adhesion between the elastic yarn and the adhesive is better.

[0064] Preferably, the cross-sectional shape of the monofilament includes circle, triangle, ellipse, rectangle or polygon.

[0065] Preferably, the monofilament is a strip-shaped rod or a rod with branches on the main trunk, and the rod is a wavy body or a spiral body.

[0066] Preferably, the monofilament is a rod body with branches on the main body. The direction of the branches is such that after the bundle of filaments is woven on the base fabric, the bundle of filaments extends from the main body in a direction away from the base fabric, so that while the flannelette is convenient for adsorbing the sizing material, it is also convenient for the sizing material to flow on the bundle of filaments.

[0067] Preferably, the rod body with branches on the main body is fishbone-shaped, as Figure 7 shown.

[0068] Preferably, the materials of the elastic filaments and the monofilaments include polypropylene fiber, polyester fiber, cotton fiber or polypropylene;

[0069] The material of the base fabric includes polyester yarn.

[0070] Preferably, the adhesive layer on the brush fabric is rubbed to form grooves in the adhesive layer.

[0071] In this embodiment, since a smooth and flat film is formed after the bottom surface of the flannelette is coated with the adhesive, the brush fabric cannot adhere to the substrate firmly. After rubbing the adhesive layer side on the brush fabric to form a rough surface with grooves, when the brush fabric adheres to the hot melt adhesive on the substrate, it is not only easy to adhere, but also achieves the effect of firm adhesion and cannot be pulled apart.

[0072] Preferably, a brush machine or a carding machine is used to rub the adhesive layer on the brush fabric.

[0073] Preferably, the colors of the base fabric and the bundle of filaments include but are not limited to colors such as black, gray, white, red or blue, and the colors of the base fabric and the bundle of filaments are the same or different.

[0074] This embodiment provides an appearance effect of the brush fabric, making the appearance effect better.

[0075] Preferably, the elastic filaments and the bundle of filaments have the same color.

[0076] Preferably, the distance between adjacent through holes distributed on the base fabric ranges from 0.5 to 1.5 mm, and the aperture of the through holes distributed on the base fabric ranges from 0.5 to 1.5 mm.

[0077] In this embodiment, through the setting of the aperture of the through holes, on the one hand, it is convenient for the adhesive to flow through the through holes to the other fabric surface of the base fabric when coating the adhesive on the single fabric surface of the base fabric, and on the other hand, it is also convenient for the steam gas generated by the hot melt adhesive to flow out through the through holes when the subsequent brush fabric is bonded to the substrate with the hot melt adhesive to form a brush. The setting of the aperture of the through holes and the distance between adjacent holes ensures the number of pile filaments that can be connected to the pile filament layer on the second fabric surface of the base fabric.

[0078] Preferably, the distance between the through holes distributed on the base fabric is 1 mm, and the aperture of the through holes distributed on the base fabric is 1 mm.

[0079] Preferably, until the thickness of the adhesive reaches a preset thickness and the adhesive solidifies, place the flannelette in an environment with a temperature range of 140°C - 150°C for shaping to obtain the brush fabric.

[0080] In this embodiment, in an environment of 140°C - 150°C, the tufts of the flannelette are deformed to form a bent state, so as to facilitate the subsequent adsorption and application of the slurry during the operation of the brush. By setting an appropriate temperature, it is ensured that the tufts reach an appropriate bent state and avoid the tufts from burning due to too high a temperature.

[0081] Preferably, place the flannelette in a flowing state in an oven for shaping, and the flannelette passes through the oven at a speed of 1.5 m / min. The oven is an open oven. The method for shaping the flannelette is a common method, so it will not be elaborated herein. Under the environmental temperature and the flowing speed of the flannelette in this embodiment, the tufts will be deformed and play a role in shaping. The degree of curl of the tufts will not return, and the feel and elasticity of the pile surface of the flannelette are good, showing a better effect on the adsorption amount of the slurry.

[0082] Preferably, a glue applicator is used for applying glue.

[0083] According to the second aspect of the present invention, this embodiment provides a roller brush, as Figure 6 shown, including the above-mentioned brush fabric, an adhesive layer and a cylinder body.

[0084] According to the third aspect of the present invention, this embodiment provides a method for preparing a roller brush, providing the above-mentioned brush fabric, and bonding the brush fabric to the cylinder surface of the cylinder body through hot melt adhesive to obtain the roller brush.

[0085] In this embodiment, the way of bonding the brush fabric to the cylinder surface of the cylinder body through hot melt adhesive ensures the firmness of the bonding of the brush fabric to the cylinder body. The matrix mentioned above can be understood as the cylinder body here.

[0086] Preferably, the material of the cylinder body is polypropylene.

[0087] Preferably, the temperature of the hot melt adhesive is 280°C - 300°C.

[0088] In this embodiment, at this temperature, it further ensures the bonding of the brush fabric to the cylinder body.

[0089] Example 1

[0090] Provide a method for preparing a roller brush, including the following steps:

[0091] Provide monofilaments and heavy net low-elasticity filaments. The material of the monofilaments is polyester, the D number of the monofilaments is 200D - 600D, the D number of the heavy net low-elasticity filaments is 75D - 150D, the monofilaments and the heavy net low-elasticity filaments have the same color, and 4 monofilaments are coated with the heavy net low-elasticity filaments to form a bunch of filaments;

[0092] Provide a base fabric. The material of the base fabric is polyester. Through holes are distributed on the surface of the base fabric. The distance between adjacent through holes is 1mm, and the aperture of the through holes is 1mm. A bunch of filaments is woven on one side of the base fabric by a double-sided rapier loom to obtain a flannelette. The side of the flannelette woven with the bunch of filaments is the velvet surface;

[0093] Lay the flannelette flat on a coating machine, with the velvet surface facing up and the bottom surface of the flannelette facing down. Coat an adhesive with a temperature of 120°C on the bottom surface of the flannelette. After coating, blow cold air onto the bottom surface of the flannelette. The angle between the blowing direction and the bottom surface of the flannelette is 85 - 95 degrees. When at least part of the adhesive on the flannelette solidifies, coat a new layer of adhesive on the bottom surface of the flannelette and then blow cold air again. Coating the adhesive and blowing cold air are carried out alternately until the thickness of the adhesive reaches the preset thickness and the adhesive solidifies, and then place it in an oven for shaping to obtain a brush fabric. Then use a bristle machine to friction-brush the adhesive layer on the bottom of the brush fabric into a rough surface;

[0094] Bond the brush fabric to a cylindrical barrel through a hot melt adhesive with a temperature of 290°C to obtain a drum brush, as shown in Figure 6 shown.

[0095] Those of ordinary skill in the art can understand that the above embodiments are specific cases for implementing the present disclosure, and in practical applications, various changes can be made in form and details without departing from the scope of the present disclosure.

Claims

1. A method for preparing a brush fabric, characterized in that, It includes the following steps: Weave bunchy filaments on one side of a base fabric to form a suede surface, obtaining a suede cloth, and the base fabric is distributed with through holes; Coat n layers of adhesive on the bottom surface of the suede cloth, and after each coating of the adhesive, blow air towards the bottom surface of the suede cloth. The air flow during the blowing can drive the adhesive near the through holes to flow along the through holes to the roots of the bunchy filaments on the suede cloth; The coating of the adhesive and the blowing are carried out alternately until the thickness of the adhesive reaches a preset thickness and the adhesive solidifies to obtain a brush fabric; Wherein, n is a natural number, n≥2.

2. The preparation method of a brush fabric according to claim 1, characterized in that, When coating the adhesive on the base fabric, place the suede surface of the suede cloth downward, lay and tighten the suede cloth so that the bottom surface of the suede cloth is on the same horizontal plane, and the angle between the blowing direction and the bottom surface of the suede cloth is 85-95 degrees.

3. The preparation method of a brush fabric according to claim 2, characterized in that, During the process of alternately coating the adhesive and blowing air, when at least part of the adhesive solidifies after the blowing, stop blowing air, and then coat new adhesive on the existing adhesive layer on the suede cloth; The air for the blowing is cold air.

4. The preparation method of a brush fabric according to claim 3, characterized in that When at least part of the adhesive solidifies after the blowing, blow air towards the suede surface of the suede cloth until at least part of the adhesive on the suede surface solidifies, and then stop blowing air.

5. The preparation method of a brush fabric according to claim 1, characterized in that, Use a single monofilament as a single bunchy filament, or wind and weave m monofilaments to form a single bunchy filament, m is a natural number, 2≤m≤6, and the adhesive on the root of the suede surface contacts the bunchy filament.

6. The preparation method of a brush fabric according to claim 5, characterized in that, Use an elastic filament to wrap a single monofilament to form the bunchy filament, or use an elastic filament to wrap m monofilaments to form the bunchy filament, or use an elastic filament to wrap a single bunchy filament formed by winding and weaving m monofilaments, m is a natural number, 2≤m≤6, and the adhesive on the root of the suede surface contacts the elastic filament.

7. The preparation method of a brush fabric according to claim 6, characterized in that, The D number of the monofilament is 200D-600D, the crimp percentage of the monofilament ≥70%, and the D number of the elastic filament is 75D-150D.

8. A method for preparing a brush fabric according to claim 5, characterized in that, The cross-sectional shape of the monofilament includes a circle, a triangle, an ellipse, a rectangle or a polygon.

9. The preparation method of a brush fabric according to claim 5, characterized in that, The monofilament is a bar-shaped body or a bar-shaped body with branches on the main body, and the bar-shaped body is a wavy body or a spiral body.

10. The preparation method of a brush fabric according to claim 6, characterized in that, The materials of the elastic filament and the monofilament include polypropylene, polyester, cotton polyamide or polypropylene; The material of the base fabric includes polyester yarn.

11. The preparation method of a brush fabric according to claim 1, characterized in that, Friction the adhesive layer on the brush fabric so that the adhesive layer is distributed with grooves.

12. The preparation method of a brush fabric according to claim 1, wherein, The colors of the base fabric and the bunchy filaments include black, gray, white, red or blue, and the colors of the base fabric and the bunchy filaments are the same or different.

13. The preparation method of a brush fabric according to claim 1, characterized in that, The spacing range between adjacent through holes on the base fabric is 0.5-1.5mm, and the aperture range of the through holes distributed on the base fabric is 0.5-1.5mm.

14. The preparation method of a brush fabric according to claim 1, characterized in that, Until the thickness of the adhesive reaches a preset thickness and the adhesive solidifies, place the suede cloth in an environment with a temperature range of 140℃-150℃ for shaping to obtain a brush fabric.

15. A roller brush, characterized in that, It includes a brush fabric, an adhesive layer and a cylinder as described in any one of claims 1-14.

16. A preparation method of a roller brush, characterized in that Provide the brush fabric according to any one of claims 1-14, and the brush fabric is adhered to the cylindrical surface of the cylinder body by hot melt adhesive to obtain a drum brush.

17. A method for preparing a roller brush according to claim 16, characterized in that, The temperature of the hot melt adhesive is 280°C - 300°C.

Images