A kind of preparation method of producing rubber paste

Abstract

The invention discloses a preparation method for producing a rubber plaster, and belongs to the technical field of rubber plaster preparation. The rubber plaster is produced by adopting an improved hot pressing method, and the rubber breaking, masticating, refining and rubber baking processes of the traditional hot pressing method are abandoned. Rubber slices are added into a kneader for stirring, auxiliary materials are added into the kneader and mixed with the framework material rubber, cooling water is added into the kneader to cool the softened rubber matrix, the softening temperature of the rubber matrix is ​​reduced and the heat resistance is guaranteed, and then a drug component is added for stirring to form a rubber material, and the rubber material is sent to a coating plate and then coated on a backing, so that the preparation of the rubber plaster is completed. The reverse coating method is convenient to operate, the paste content of the veneer is stable, and the production efficiency is high. Four-sided elastic cloth can be used as a lining material, thereby reducing the use cost, and the rubber surface is directly in contact with the cloth, which is not easy to produce adhesion, thereby ensuring the uniformity of the paste surface of the patch, and thus improving the use effect of the plaster.

Description

Technical Field

[0001] The invention belongs to the technical field of rubber plaster preparation, and specifically relates to a preparation method for rubber plaster. Background Art

[0002] Rubber plaster refers to an external dosage form that is coated on a backing material after a drug or medicinal material extract is mixed with a rubber-based matrix. There are two preparation methods for rubber plaster: solvent method and hot pressing method. The product produced by the solvent method has good viscosity and less skin residue, but the production process uses solvents, which poses safety hazards and environmental pollution. The hot pressing method produces rubber plasters, which eliminates solvents and is safe, environmentally friendly, occupies a small area, has low cost, less loss of volatile drugs, slow aging, short production cycle, and high production efficiency. It is a development trend for the hot pressing method to replace the solvent method in the production of rubber plasters.

[0003] However, the production of rubber paste by hot pressing must select tensile-resistant and non-deformable cloth for direct glue coating, which must be compounded with anti-sticking lining material after winding, making its use cost too high. In addition, when winding, the adhesive surface directly contacts the cloth and easily causes adhesion, resulting in uneven patch paste surface, affecting the use effect. Summary of the invention

[0004] In order to overcome the above defects, the present invention provides a preparation method for producing rubber paste, which solves the problem that in the production of rubber paste by hot pressing method, it is necessary to select cloth that is resistant to tension and does not deform to directly apply glue, and then compound it with an anti-sticking liner after winding, which makes its use cost too high. In addition, when winding, the adhesive surface directly contacts the cloth and is prone to adhesion, thereby causing uneven paste surface of the patch.

[0005] To achieve the above object, the present invention provides the following technical solution: a preparation method for producing a rubber plaster, the preparation method comprising the following steps:

[0006] S1, cleaning the skeleton rubber, and then drying it, and slicing the dried skeleton rubber with a rubber cutting machine;

[0007] S2, adding the sliced ​​skeleton rubber into a kneader and stirring;

[0008] S3, adding auxiliary materials to the kneading machine and mixing with the skeleton rubber to complete the preparation of the rubber matrix;

[0009] S4, adding cooling water to the kneader to cool the softened rubber matrix, and then adding the drug component to stir to form a rubber material;

[0010] S5. The rubber material is introduced into a screw extruder for discharging, and the rubber material is sent to a coating plate, and then coated on a backing, thereby completing the preparation of the rubber paste.

[0011] As a further solution of the present invention: in S1, the cleaned skeleton rubber is dried at 50-60°C, and the thickness of the slices is 1-2 cm.

[0012] As a further solution of the present invention: in S2, the temperature in the kneader is controlled at 50-70°C, and the stirring time is 30-40 minutes.

[0013] As a further solution of the present invention: in S2, the auxiliary materials include a tackifier, a softener and a filler, the mass ratio of the skeleton rubber to the auxiliary materials is 25-40:60-75, and the mass ratio of the tackifier, the softener and the filler is 15-20:3-5:30-35.

[0014] As a further embodiment of the present invention: the tackifier is one or a mixture of rosin, hydrogenated rosin or β-pinene;

[0015] The softener is one or more of vaseline, lanolin, liquid paraffin or vegetable oil;

[0016] The filler is one or more of zinc oxide or lithopone.

[0017] As a further solution of the present invention: in S4, the rubber matrix is ​​cooled to room temperature, the drug component is added to the kneader and stirred for 25-30 minutes, and in S6, the coating method is one of the direct coating method and the reverse coating method;

[0018] Direct coating method: spread the adhesive directly on the cloth, wait for the adhesive to solidify and take shape, then slit and roll it up, then laminate it with the anti-sticking lining material, and then cut it into pieces;

[0019] Reverse coating method: first spread the adhesive onto the anti-sticking lining material, and before the adhesive is formed, press it with the cloth while it is hot. The composite medicated film is then cut into sheets.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: by adopting an improved hot pressing method to produce rubber paste, the rubber breaking, masticating, refining and baking processes of the traditional hot pressing method are abandoned, the rubber slices are added into a kneading machine for stirring, auxiliary materials are added and mixed with the skeleton rubber, the softened rubber matrix is ​​cooled by cooling water to reduce the softening temperature of the rubber matrix and ensure its heat resistance, and then the drug components are added and stirred to form a rubber material, and then the rubber paste is prepared by reverse coating. The reverse coating method is convenient to operate, stabilizes the paste content of the veneer, and has high production efficiency. Four-sided elastic cloth can be used as a lining material, thereby reducing the use cost, and the rubber surface is directly in contact with the cloth and is not easy to produce adhesion, thereby ensuring the uniformity of the paste surface of the patch, thereby improving the use effect of the paste. DETAILED DESCRIPTION

[0021] The technical solution of the present application is further described in detail below in conjunction with specific implementation methods.

[0022] The present invention provides a technical solution: a preparation method for producing a rubber plaster, the preparation method comprising the following steps:

[0023] S1, cleaning the skeleton rubber, and then drying it, and slicing the dried skeleton rubber with a rubber cutting machine;

[0024] S2, adding the sliced ​​skeleton rubber into a kneader and stirring;

[0025] S3, adding auxiliary materials to the kneading machine and mixing with the skeleton rubber to complete the preparation of the rubber matrix;

[0026] S4, adding cooling water to the kneader to cool the softened rubber matrix, and then adding the drug component to stir to form a rubber material;

[0027] S5. The rubber material is introduced into a screw extruder for discharging, and the rubber material is sent to a coating plate, and then coated on a backing, thereby completing the preparation of the rubber paste.

[0028] In S1, the cleaned skeleton rubber is dried at 50-60°C, and the thickness of the slices is 1-2 cm.

[0029] In S2, the temperature in the kneader is controlled at 50-70°C, and the stirring time is 30-40 minutes.

[0030] In S2, the auxiliary materials include tackifier, softener and filler, the mass ratio of the skeleton rubber to the auxiliary materials is 25-40:60-75, and the mass ratio of the tackifier, softener and filler is 15-20:3-5:30-35.

[0031] The tackifier is one or a mixture of rosin, hydrogenated rosin or β-pinene;

[0032] The softener is one or more of vaseline, lanolin, liquid paraffin or vegetable oil;

[0033] The filler is one or more of zinc oxide or lithopone.

[0034] In S4, the rubber matrix is ​​cooled to room temperature, the drug component is added to the kneader and stirred for 25-30 minutes, and in S6, the coating method is one of the direct coating method and the reverse coating method;

[0035] Direct coating method: spread the adhesive directly on the cloth, wait for the adhesive to solidify and take shape, then slit and roll it up, then laminate it with the anti-sticking lining material, and then cut it into pieces;

[0036] Reverse coating method: first spread the adhesive onto the anti-sticking lining material, and before the adhesive is formed, press it with the cloth while it is hot. The composite medicated film is then cut into sheets.

[0037] Embodiment 1:

[0038] A preparation method for producing a rubber plaster, the preparation method comprising the following steps:

[0039] S1, cleaning the skeleton rubber, and then drying it, and slicing the dried skeleton rubber with a rubber cutting machine;

[0040] S2, adding the sliced ​​skeleton rubber into a kneader and stirring;

[0041] S3, adding auxiliary materials to the kneading machine and mixing with the skeleton rubber to complete the preparation of the rubber matrix;

[0042] S4, adding cooling water to the kneader to cool the softened rubber matrix, and then adding the drug component to stir to form a rubber material;

[0043] S5. The rubber material is introduced into a screw extruder for discharging, and the rubber material is sent to a coating plate, and then coated on a backing, thereby completing the preparation of the rubber paste.

[0044] In S1, the cleaned skeleton rubber is dried at 50-60°C, and the thickness of the slices is 1-2 cm.

[0045] In S2, the temperature in the kneader is controlled at 50-70°C, and the stirring time is 30-40 minutes.

[0046] In S2, the auxiliary materials include tackifier, softener and filler, the mass ratio of the skeleton rubber to the auxiliary materials is 25-40:60-75, and the mass ratio of the tackifier, softener and filler is 15-20:3-5:30-35.

[0047] The tackifier is one or a mixture of rosin, hydrogenated rosin or β-pinene;

[0048] The softener is one or more of vaseline, lanolin, liquid paraffin or vegetable oil;

[0049] The filler is one or more of zinc oxide or lithopone.

[0050] In S4, the rubber matrix is ​​cooled to room temperature, the drug component is added to the kneader and stirred for 25-30 minutes, and in S6, the coating method is a direct coating method;

[0051] Direct coating method: spread the adhesive directly on the cloth, wait for the adhesive to solidify and take shape, then slit and reel it in, then laminate it with the anti-sticking lining material, and then cut it into pieces.

[0052] Embodiment 2:

[0053] A preparation method for producing a rubber plaster, the preparation method comprising the following steps:

[0054] S1, cleaning the skeleton rubber, and then drying it, and slicing the dried skeleton rubber with a rubber cutting machine;

[0055] S2, adding the sliced ​​skeleton rubber into a kneader and stirring;

[0056] S3, adding auxiliary materials to the kneading machine and mixing with the skeleton rubber to complete the preparation of the rubber matrix;

[0057] S4, adding cooling water to the kneader to cool the softened rubber matrix, and then adding the drug component to stir to form a rubber material;

[0058] S5. The rubber material is introduced into a screw extruder for discharging, and the rubber material is sent to a coating plate, and then coated on a backing, thereby completing the preparation of the rubber paste.

[0059] In S1, the cleaned skeleton rubber is dried at 50-60°C, and the thickness of the slices is 1-2 cm.

[0060] In S2, the temperature in the kneader is controlled at 50-70°C, and the stirring time is 30-40 minutes.

[0061] In S2, the auxiliary materials include tackifier, softener and filler, the mass ratio of the skeleton rubber to the auxiliary materials is 25-40:60-75, and the mass ratio of the tackifier, softener and filler is 15-20:3-5:30-35.

[0062] The tackifier is one or a mixture of rosin, hydrogenated rosin or β-pinene;

[0063] The softener is one or more of vaseline, lanolin, liquid paraffin or vegetable oil;

[0064] The filler is one or more of zinc oxide or lithopone.

[0065] In S4, the rubber matrix is ​​cooled to room temperature, the drug component is added to the kneader and stirred for 25-30 minutes, and in S6, the coating method is the reverse coating method;

[0066] Reverse coating method: first spread the adhesive onto the anti-sticking lining material, and before the adhesive is formed, press it with the cloth while it is hot. The composite medicated film is then cut into sheets.

[0067] Embodiment 3:

[0068] A preparation method for producing a rubber plaster, the preparation method comprising the following steps:

[0069] S1, cleaning the skeleton rubber, and then drying it, and slicing the dried skeleton rubber with a rubber cutting machine;

[0070] S2, adding the sliced ​​skeleton rubber into a kneader and stirring;

[0071] S3, adding auxiliary materials to the kneading machine and mixing with the skeleton rubber to complete the preparation of the rubber matrix;

[0072] S4, adding the drug components into the kneader and stirring to form a rubber material;

[0073] S5. The rubber material is introduced into a screw extruder for discharging, and the rubber material is sent to a coating plate, and then coated on a backing, thereby completing the preparation of the rubber paste.

[0074] In S1, the cleaned skeleton rubber is dried at 50-60°C, and the thickness of the slices is 1-2 cm.

[0075] In S2, the temperature in the kneader is controlled at 50°C and the stirring time is 30-40 minutes.

[0076] In S2, the auxiliary materials include tackifier, softener and filler, the mass ratio of the skeleton rubber to the auxiliary materials is 25-40:60-75, and the mass ratio of the tackifier, softener and filler is 15-20:3-5:30-35.

[0077] The tackifier is one or a mixture of rosin, hydrogenated rosin or β-pinene;

[0078] The softener is one or more of vaseline, lanolin, liquid paraffin or vegetable oil;

[0079] The filler is one or more of zinc oxide or lithopone.

[0080] In S4, the rubber matrix is ​​cooled to room temperature, the drug component is added to the kneader and stirred for 25-30 minutes, and in S6, the coating method is a direct coating method;

[0081] Direct coating method: spread the adhesive directly on the cloth, wait for the adhesive to solidify and take shape, then slit and reel it in, then laminate it with the anti-sticking lining material, and then cut it into pieces.

[0082] Embodiment 4:

[0083] A preparation method for producing a rubber plaster, the preparation method comprising the following steps:

[0084] S1, cleaning the skeleton rubber, and then drying it, and slicing the dried skeleton rubber with a rubber cutting machine;

[0085] S2, adding the sliced ​​skeleton rubber into a kneader and stirring;

[0086] S3, adding auxiliary materials to the kneading machine and mixing with the skeleton rubber to complete the preparation of the rubber matrix;

[0087] S4, adding the drug components into the kneader and stirring to form a rubber material;

[0088] S5. The rubber material is introduced into a screw extruder for discharging, and the rubber material is sent to a coating plate, and then coated on a backing, thereby completing the preparation of the rubber paste.

[0089] In S1, the cleaned skeleton rubber is dried at 50-60°C, and the thickness of the slices is 1-2 cm.

[0090] In S2, the temperature in the kneader is controlled at 60°C and the stirring time is 30-40 minutes.

[0091] In S2, the auxiliary materials include tackifier, softener and filler, the mass ratio of the skeleton rubber to the auxiliary materials is 25-40:60-75, and the mass ratio of the tackifier, softener and filler is 15-20:3-5:30-35.

[0092] The tackifier is one or a mixture of rosin, hydrogenated rosin or β-pinene;

[0093] The softener is one or more of vaseline, lanolin, liquid paraffin or vegetable oil;

[0094] The filler is one or more of zinc oxide or lithopone.

[0095] In S4, the rubber matrix is ​​cooled to room temperature, the drug component is added to the kneader and stirred for 25-30 minutes, and in S6, the coating method is a direct coating method;

[0096] Direct coating method: spread the adhesive directly on the cloth, wait for the adhesive to solidify and take shape, then slit and reel it in, then laminate it with the anti-sticking lining material, and then cut it into pieces.

[0097] Embodiment 5:

[0098] A preparation method for producing a rubber plaster, the preparation method comprising the following steps:

[0099] S1, cleaning the skeleton rubber, and then drying it, and slicing the dried skeleton rubber with a rubber cutting machine;

[0100] S2, adding the sliced ​​skeleton rubber into a kneader and stirring;

[0101] S3, adding auxiliary materials to the kneading machine and mixing with the skeleton rubber to complete the preparation of the rubber matrix;

[0102] S4, adding the drug components into the kneader and stirring to form a rubber material;

[0103] S5. The rubber material is introduced into a screw extruder for discharging, and the rubber material is sent to a coating plate, and then coated on a backing, thereby completing the preparation of the rubber paste.

[0104] In S1, the cleaned skeleton rubber is dried at 50-60°C, and the thickness of the slices is 1-2 cm.

[0105] In S2, the temperature in the kneader is controlled at 70°C and the stirring time is 30-40 minutes.

[0106] In S2, the auxiliary materials include tackifier, softener and filler, the mass ratio of the skeleton rubber to the auxiliary materials is 25-40:60-75, and the mass ratio of the tackifier, softener and filler is 15-20:3-5:30-35.

[0107] The tackifier is one or a mixture of rosin, hydrogenated rosin or β-pinene;

[0108] The softener is one or more of vaseline, lanolin, liquid paraffin or vegetable oil;

[0109] The filler is one or more of zinc oxide or lithopone.

[0110] In S4, the rubber matrix is ​​cooled to room temperature, the drug component is added to the kneader and stirred for 25-30 minutes, and in S6, the coating method is a direct coating method;

[0111] Direct coating method: spread the adhesive directly on the cloth, wait for the adhesive to solidify and take shape, then slit and reel it in, then laminate it with the anti-sticking lining material, and then cut it into pieces.

[0112] Embodiment 6:

[0113] A preparation method for producing a rubber plaster, the preparation method comprising the following steps:

[0114] S1, cleaning the skeleton rubber, and then drying it, and slicing the dried skeleton rubber with a rubber cutting machine;

[0115] S2, adding the sliced ​​skeleton rubber into a kneader and stirring;

[0116] S3, adding auxiliary materials to the kneading machine and mixing with the skeleton rubber to complete the preparation of the rubber matrix;

[0117] S4, adding the drug components into the kneader and stirring to form a rubber material;

[0118] S5. The rubber material is introduced into a screw extruder for discharging, and the rubber material is sent to a coating plate, and then coated on a backing, thereby completing the preparation of the rubber paste.

[0119] In S1, the cleaned skeleton rubber is dried at 50-60°C, and the thickness of the slices is 1-2 cm.

[0120] In S2, the temperature in the kneader is controlled at 50°C and the stirring time is 30-40 minutes.

[0121] In S2, the auxiliary materials include tackifier, softener and filler, the mass ratio of the skeleton rubber to the auxiliary materials is 25-40:60-75, and the mass ratio of the tackifier, softener and filler is 15-20:3-5:30-35.

[0122] The tackifier is one or a mixture of rosin, hydrogenated rosin or β-pinene;

[0123] The softener is one or more of vaseline, lanolin, liquid paraffin or vegetable oil;

[0124] The filler is one or more of zinc oxide or lithopone.

[0125] In S4, the rubber matrix is ​​cooled to room temperature, the drug component is added to the kneader and stirred for 25-30 minutes, and in S6, the coating method is the reverse coating method;

[0126] Reverse coating method: first spread the adhesive onto the anti-sticking lining material, and before the adhesive is formed, press it with the cloth while it is hot. The composite medicated film is then cut into sheets.

[0127] Embodiment 7:

[0128] A preparation method for producing a rubber plaster, the preparation method comprising the following steps:

[0129] S1, cleaning the skeleton rubber, and then drying it, and slicing the dried skeleton rubber with a rubber cutting machine;

[0130] S2, adding the sliced ​​skeleton rubber into a kneader and stirring;

[0131] S3, adding auxiliary materials to the kneading machine and mixing with the skeleton rubber to complete the preparation of the rubber matrix;

[0132] S4, adding the drug components into the kneader and stirring to form a rubber material;

[0133] S5. The rubber material is introduced into a screw extruder for discharging, and the rubber material is sent to a coating plate, and then coated on a backing, thereby completing the preparation of the rubber paste.

[0134] In S1, the cleaned skeleton rubber is dried at 50-60°C, and the thickness of the slices is 1-2 cm.

[0135] In S2, the temperature in the kneader is controlled at 70°C and the stirring time is 30-40 minutes.

[0136] In S2, the auxiliary materials include tackifier, softener and filler, the mass ratio of the skeleton rubber to the auxiliary materials is 25-40:60-75, and the mass ratio of the tackifier, softener and filler is 15-20:3-5:30-35.

[0137] The tackifier is one or a mixture of rosin, hydrogenated rosin or β-pinene;

[0138] The softener is one or more of vaseline, lanolin, liquid paraffin or vegetable oil;

[0139] The filler is one or more of zinc oxide or lithopone.

[0140] In S4, the rubber matrix is ​​cooled to room temperature, the drug component is added to the kneader and stirred for 25-30 minutes, and in S6, the coating method is the reverse coating method;

[0141] Reverse coating method: first spread the adhesive onto the anti-sticking lining material, and before the adhesive is formed, press it with the cloth while it is hot. The composite medicated film is then cut into sheets.

[0142] The following table is obtained based on Examples 1-7:

[0143] Rubber matrix softening temperature Coating method Coating effect Example 1 Cool to room temperature Direct coating method The rubber surface is slightly adhered to the cloth Example 2 Cool to room temperature Reverse coating method The rubber surface does not stick to the fabric Example 3 Maintain 50℃ Direct coating method Adhesion between rubber surface and fabric Example 4 Maintain 60℃ Direct coating method Adhesion between rubber surface and fabric Example 5 Maintain 70℃ Direct coating method Adhesion between rubber surface and fabric Example 6 Maintain 50℃ Reverse coating method The rubber surface is slightly adhered to the cloth Example 7 Maintain 70℃ Reverse coating method The rubber surface is slightly adhered to the cloth

[0144] From the comparison in the above table, we can see that:

[0145] According to Examples 1-2, the softened rubber matrix is ​​cooled by cooling water, and the rubber paste is prepared by reverse coating, so that the paste content of the veneer is stable, and the rubber surface is not easy to stick to the cloth when it directly contacts the cloth;

[0146] According to Example 1 and Examples 3-5, it is known that whether the rubber matrix is ​​cooled directly affects the adhesion between the rubber surface and the cloth. By cooling the rubber matrix, the softening temperature of the rubber matrix is ​​reduced and its heat resistance is guaranteed.

[0147] According to Examples 3-5 and 6-7, the softened rubber matrix was not cooled. In Example 3-5, the direct coating method was adopted, and the rubber surface was adhered to the cloth. In Example 6-7, the reverse coating method was adopted, and the rubber surface was slightly adhered to the cloth. Therefore, the reverse coating method is obviously better than the direct coating method.

[0148] From the above we know:

[0149] By adopting an improved hot pressing method to produce rubber paste, the rubber breaking, masticating, refining and baking processes of the traditional hot pressing method are abandoned. The rubber slices are added into a kneading machine for stirring, and auxiliary materials are added and mixed with the skeleton rubber. The softened rubber matrix is ​​cooled by cooling water to reduce the softening temperature of the rubber matrix and ensure its heat resistance. The drug components are then added and stirred to form a rubber material, and the rubber paste is prepared by reverse coating. The reverse coating method is easy to operate, stabilizes the paste content of the veneer, and has high production efficiency. Four-sided elastic cloth can be used as a lining material, thereby reducing the cost of use. In addition, the rubber surface is in direct contact with the cloth and is not easy to adhere, ensuring the uniformity of the paste surface of the patch, thereby improving the use effect of the paste.

[0151] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0152] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0153] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more schemes or examples in a suitable manner.

Claims

1. A method for producing a rubber plaster, characterized in that: The preparation method comprises the following steps: S1, cleaning the skeleton rubber, and then drying it, and slicing the dried skeleton rubber with a rubber cutting machine; S2, adding the sliced ​​skeleton rubber into a kneader and stirring; S3, adding auxiliary materials to the kneading machine and mixing with the skeleton rubber to complete the preparation of the rubber matrix; S4, adding cooling water to the kneader to cool the softened rubber matrix, and then adding the drug component to stir to form a rubber material; S5. The rubber material is introduced into a screw extruder for discharging, and the rubber material is sent to a coating plate, and then coated on a backing, thereby completing the preparation of the rubber paste.

2. A method for producing a rubber plaster according to claim 1, characterized in that: In the above S1, the cleaned skeleton rubber is dried at 50-60°C, and the thickness of the slices is 1-2 cm.

3. A method for producing a rubber plaster according to claim 1, characterized in that: In S2, the temperature in the kneader is controlled at 50-70°C, and the stirring time is 30-40 minutes.

4. A method for producing a rubber plaster according to claim 1, characterized in that: In S2, the auxiliary materials include a tackifier, a softener and a filler, the mass ratio of the skeleton rubber to the auxiliary materials is 25-40:60-75, and the mass ratio of the tackifier, the softener and the filler is 15-20:3-5:30-35.

5. A method for producing a rubber plaster according to claim 4, characterized in that: The tackifier is one or a mixture of rosin, hydrogenated rosin or β-pinene; The softener is one or more of vaseline, lanolin, liquid paraffin or vegetable oil; The filler is one or more of zinc oxide or lithopone.

6. A method for producing a rubber plaster according to claim 1, characterized in that: In S4, the rubber matrix is ​​cooled to room temperature, the drug component is added to the kneader and stirred for 25-30 minutes, and in S6, the coating method is one of the direct coating method and the reverse coating method; Direct coating method: spread the adhesive directly on the cloth, wait for the adhesive to solidify and take shape, then slit and roll it up, then laminate it with the anti-sticking lining material, and then cut it into pieces; Reverse coating method: first spread the adhesive onto the anti-sticking lining material, and before the adhesive is formed, press it with the cloth while it is hot. The composite medicated film is then cut into sheets.