阅读说明：本技术 一种辐照发泡制备远红外理疗贴的方法 (Method for preparing far infrared physiotherapy plaster by irradiation foaming ) 是由 郑庆信 李倩 武传业 林强 肖峰 于 2021-07-21 设计创作，主要内容包括：本发明涉及辐照合成药用器械理疗贴敷片状材料技术领域,尤其涉及一种辐照发泡制备远红外理疗贴的方法。该种远红外理疗贴制备方法包括以下步骤：S1、塑胶原料、发泡剂、助剂和陶瓷粉混合,投入密炼机中炼成均质胶球；S2、将S1的胶球在开炼机上塑炼包辊,加入氧化锌,打三角包工艺均匀开炼成片材；S3、将S2的片材经电子加速器射线辐照成交联片材；S4、将S3的交联片材经平板硫化机加热成为发泡片材；S5、将S4的发泡片材单面涂覆压敏胶,并覆盖离型膜成自粘型片材；S6、将S5制成的自粘片材切割成为固定形状的发泡的自粘型远红外理疗贴。本发明的有益之处：为材料发泡提供工艺保障、柔软弹性好、粘接强度高。(The invention relates to the technical field of irradiation synthesis medical instrument physical therapy patch sheet materials, in particular to a method for preparing a far infrared physical therapy patch by irradiation foaming. The preparation method of the far infrared physiotherapy plaster comprises the following steps: s1, mixing the plastic raw material, the foaming agent, the auxiliary agent and the ceramic powder, and putting the mixture into an internal mixer to be mixed into homogeneous rubber balls; s2, plasticating the rubber balls of S1 on an open mill for wrapping rollers, adding zinc oxide, and uniformly milling into sheets by a triangular wrapping process; s3, irradiating the sheet material of S2 into a cross-linked sheet material by electron accelerator rays; s4, heating the cross-linked sheet of S3 by a flat vulcanizing machine to form a foamed sheet; s5, coating a pressure-sensitive adhesive on one side of the foaming sheet of S4, and covering a release film to form a self-adhesive sheet; s6, cutting the self-adhesive sheet material made in the S5 into a foamed self-adhesive far infrared physiotherapy plaster with a fixed shape. The invention has the advantages that: provides process guarantee for material foaming, and has good softness and elasticity and high bonding strength.)

1. A method for preparing a far infrared physiotherapy patch by irradiation foaming is characterized in that: the preparation method of the far infrared physiotherapy plaster comprises the following steps:

s1, mixing the plastic raw material, the foaming agent, the auxiliary agent and the ceramic powder, and putting the mixture into an internal mixer to be mixed into homogeneous rubber balls;

s2, plasticating the rubber balls of S1 on an open mill for wrapping rollers, adding zinc oxide, and uniformly milling into sheets by a triangular wrapping process;

s3, irradiating the sheet material of S2 into a cross-linked sheet material by electron accelerator rays;

s4, heating the cross-linked sheet of S3 by a flat vulcanizing machine to form a foamed sheet;

s5, coating a pressure-sensitive adhesive on one side of the foaming sheet of S4, and covering a release film to form a self-adhesive sheet;

s6, cutting the self-adhesive sheet material made in the S5 into a foamed self-adhesive far infrared physiotherapy plaster with a fixed shape.

2. The method for preparing a far infrared physiotherapy patch by irradiation foaming according to claim 1, which is characterized in that: the plastic raw materials in S1 include: EVA (polyethylene-vinyl acetate), PE (polyethylene), EPDM (ethylene propylene diene monomer); the foaming agent is ADC (azodicarbonamide); the auxiliary agent comprises: stearic acid, dimethyl silicone oil, silicon dioxide powder, white carbon black, talcum powder, calcium carbonate, bentonite, diatomite, aluminum hydroxide, magnesium stearate, zinc stearate, calcium stearate and TAIC (triallyl isocyanurate); the ceramic powder is white powder with the fineness of more than 2000 meshes, contains zinc oxide, titanium dioxide and silicon dioxide, can absorb external heat energy and releases far infrared rays with the wavelength of 4-14 microns.

3. The method for preparing a far infrared physiotherapy patch by irradiation foaming according to claim 1, which is characterized in that: and S2, preparing the sheet by a roll mill thin-pass process, and rolling the sheet into a sheet with a fixed thickness.

4. The method for preparing a far infrared physiotherapy patch by irradiation foaming according to claim 1, which is characterized in that: the electron accelerator in S3 adopts 15-100kGy radiation dose, and the crosslinking sheet is a sheet made of S2 and is irradiated by electron beam rays to enable a plastic material to form a crosslinking structure and does not contain sulfide chemical crosslinking components.

5. The method for preparing a far infrared physiotherapy patch by irradiation foaming according to claim 1, which is characterized in that: the temperature of the plate vulcanizing machine in S4 is at 220 ℃ and the heating time is 10-60 min.

6. The method for preparing a far infrared physiotherapy patch by irradiation foaming according to claim 1, which is characterized in that: and the self-adhesive sheet in the S6 is cut into a patch type self-adhesive foaming far infrared physiotherapy product with a certain shape according to the application requirements of customers.

7. The method for preparing a far infrared physiotherapy patch by irradiation foaming according to claim 2, which is characterized in that: the raw materials are EVA: 5-1OO, EPDM: 1-65, PE: 0-25, ADC: 10-25, ceramic powder: 10-70, titanium dioxide powder: 2-15, silicon dioxide powder: 1-15, dimethicone: 0.5-2.0, stearic acid: 0.5-1.5, TAIC: 0.01-5.0, zinc oxide: 2-5.

Technical Field

The invention relates to the technical field of irradiation synthesis medical instrument physical therapy patch sheet materials, in particular to a method for preparing a far infrared physical therapy patch by irradiation foaming.

Background

Cervical spondylosis, scapulohumeral periarthritis, lumbar disc herniation, lumbocrural pain, hyperosteogeny, arthritis, lumbar muscle strain, soft tissue injury, myofibrositis and the like are common chronic diseases in clinic, and the clinical manifestations are pain at the neck, shoulder, waist, leg, joints and other parts, and are accompanied with symptoms of swelling pain, numbness, movement difficulty, dizziness, tinnitus and the like, the symptoms are frequently generated in middle-aged and elderly people, and office computer operators who keep a posture for a long time, the disease course is long, the illness state is very easy to repeat, if the patient can not be treated in time, limb dysfunction can occur, and then the movement is limited, and the daily life of the patient is seriously affected.

People with discomfort symptoms can adopt oral medication, but most of the medicines can generate certain side effects while generating curative effect; the traditional acupuncture therapy has better relieving and treating effects on common diseases, but the needle can be safely applied by professional personnel.

Modern medical research shows that the far infrared ceramic powder can absorb the self-radiated energy of the human body and directly emit far infrared light waves, thereby achieving the effects of improving microcirculation and strengthening metabolic function and having obvious treatment effect on neck, shoulder, waist and leg pain. Can relieve pain in neck, shoulder, waist and leg.

The physiotherapy patch manufactured by the prior art has the problems of edge warping, falling off, low bonding strength, insufficient softness, softness and elasticity and the like in daily bending motion after being attached, and a method for preparing the far infrared physiotherapy patch by irradiation foaming is researched and developed for solving the problems.

Disclosure of Invention

The invention aims to provide a method for preparing a far infrared physiotherapy patch by irradiation foaming, which overcomes the defects in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

a method for preparing a far infrared physiotherapy plaster by irradiation foaming comprises the following steps:

s1, mixing the plastic raw material, the foaming agent, the auxiliary agent and the ceramic powder, and putting the mixture into an internal mixer to be mixed into homogeneous rubber balls;

s2, plasticating the rubber balls of S1 on an open mill for wrapping rollers, adding zinc oxide, and uniformly milling into sheets by a triangular wrapping process;

s3, irradiating the sheet material of S2 into a cross-linked sheet material by electron accelerator rays;

s4, heating the cross-linked sheet of S3 by a flat vulcanizing machine to form a foamed sheet;

s5, coating a pressure-sensitive adhesive on one side of the foaming sheet of S4, and covering a release film to form a self-adhesive sheet;

s6, cutting the self-adhesive sheet material made in the S5 into a foamed self-adhesive far infrared physiotherapy plaster with a fixed shape.

Preferably, the plastic material in S1 includes: EVA (polyethylene-vinyl acetate), PE (polyethylene), EPDM (ethylene propylene diene monomer); the foaming agent is ADC (azodicarbonamide); the auxiliary agent comprises: stearic acid, dimethyl silicone oil, silicon dioxide powder, white carbon black, talcum powder, calcium carbonate, bentonite, diatomite, aluminum hydroxide, magnesium stearate, zinc stearate, calcium stearate and TAIC (triallyl isocyanurate); the ceramic powder is white powder with the fineness of more than 2000 meshes, contains zinc oxide, titanium dioxide and silicon dioxide, can absorb external heat energy and releases far infrared rays with the wavelength of 4-14 microns.

Preferably, the sheet material in S2 is prepared by roll mill roll-through process, and then rolled into a sheet material with a fixed thickness.

Preferably, the electron accelerator radiation in S3 is 15-100kGy, and the crosslinked sheet is a sheet made of S2, which is irradiated with electron beam radiation to form a crosslinked structure on the plastic material, and does not contain sulfide chemical crosslinking components.

Preferably, the temperature of the plate vulcanizing machine in S4 is 130-220 ℃, and the heating time is 10-60 min.

Preferably, the cutting and forming of the self-adhesive sheet material in S6 cuts the self-adhesive sheet material into a patch type far infrared physiotherapy product with a self-adhesive foaming type according to the application requirements of customers.

Preferably, the raw materials are EVA: 5-1OO, EPDM: 1-65, PE: 0-25, ADC: 10-25, ceramic powder: 10-70, titanium dioxide powder: 2-15, silicon dioxide powder: 1-15, dimethicone: 0.5-2.0, stearic acid: 0.5-1.5, TAIC: 0.01-5.0, zinc oxide: 2-5.

The invention has the beneficial effects that: according to the invention, an electron beam ray irradiation crosslinking mode is adopted, so that a toxic crosslinking vulcanizing agent is avoided, and a process guarantee is provided for material foaming; the mixing mode of banburying and open mixing is adopted, the addition amount of the ceramic powder can be increased, and a good homogeneous sheet material is prepared; preparing a soft and elastic sheet by adopting a material foaming mode; the surface of the foaming base material is coated with the pressure-sensitive adhesive to provide a self-adhesive form, so that the adhesive strength is provided for the sheet physical therapy patch; the invention adopts the superfine far infrared ceramic powder, so that the far infrared ceramic powder has excellent surface property, can have good dispersibility with other components, and ensures that the physiotherapy plaster has uniform heating and complete efficacy; in addition, the silicon dioxide powder is added, the temperature is controlled by utilizing the structural porosity of the silicon dioxide powder, the drug effect exerting time is prolonged through the energy storage effect, meanwhile, when the silicon dioxide powder is used by a patient, the using time can be properly adjusted according to the pain degree, the silicon dioxide powder can be repeatedly recycled, and the silicon dioxide powder is flexible and convenient to use; the external physical therapy patch has the advantages of simple formula composition, easy control of product quality, high effective component of far infrared treatment and better improvement of the treatment effect, thereby providing the external physical therapy patch which can more effectively treat rheumatic bone pain and muscle soreness.

Drawings

FIG. 1 is a schematic structural view of a far infrared physiotherapy patch prepared by irradiation foaming according to the present invention;

in the figure: 1. a release film; 2. a pressure sensitive adhesive coating; 3. a foamed sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1, the present embodiment is a method for preparing a far infrared physiotherapy patch by irradiation foaming, the method for preparing the far infrared physiotherapy patch comprising the steps of:

s1, mixing the plastic raw materials according to the weight ratio of EVA: 5-1OO, EPDM: 1-65, PE: 0-25, ADC: 10-25, ceramic powder: 10-70, titanium dioxide powder: 2-15, silicon dioxide powder: 1-15, dimethicone: 0.5-2.0, stearic acid: 0.5-1.5, TAIC: 0.01-5.0, zinc oxide: 2-5, foaming agent, auxiliary agent and ceramic powder, and putting into an internal mixer to be mixed into homogeneous rubber balls;

s2, plasticating the rubber balls of S1 on an open mill for wrapping rollers, adding zinc oxide, and uniformly milling into sheets by a triangular wrapping process;

s3, irradiating the sheet material of S2 into a cross-linked sheet material by electron accelerator rays;

s4, heating the cross-linked sheet of S3 by a flat vulcanizing machine to form a foamed sheet 3;

s5, coating a pressure-sensitive adhesive on one side of the foamed sheet of S4 to form a pressure-sensitive adhesive coating 2, and covering a release film 1 to form a self-adhesive sheet;

s6, cutting the self-adhesive sheet material made in the S5 into a foamed self-adhesive far infrared physiotherapy plaster with a fixed shape.

The plastic raw materials in S1 include: EVA (polyethylene-vinyl acetate), PE (polyethylene), EPDM (ethylene propylene diene monomer); the foaming agent is ADC (azodicarbonamide); the auxiliary agent comprises: stearic acid, dimethyl silicone oil, silicon dioxide powder, white carbon black, talcum powder, calcium carbonate, bentonite, diatomite, aluminum hydroxide, magnesium stearate, zinc stearate, calcium stearate and TAIC (triallyl isocyanurate); the ceramic powder is white powder with the fineness of more than 2000 meshes, contains zinc oxide, titanium dioxide and silicon dioxide, can absorb external heat energy and releases far infrared rays with the wavelength of 4-14 microns.

And S2, preparing the sheet by a roll mill thin-pass process, and rolling the sheet into a sheet with a fixed thickness.

The electron accelerator in S3 adopts 15-100kGy radiation dose, and the crosslinking sheet is a sheet made of S2 and is irradiated by electron beam rays to enable a plastic material to form a crosslinking structure and does not contain sulfide chemical crosslinking components.

The temperature of the plate vulcanizing machine in S4 is at 220 ℃ and the heating time is 10-60 min.

And the self-adhesive sheet in the S6 is cut into a patch type self-adhesive foaming far infrared physiotherapy product with a certain shape according to the application requirements of customers.

Example 1

A method for preparing a self-adhesive far infrared physiotherapy patch by irradiation foaming comprises the following steps:

1) weighing the following materials for later use;

2) putting the other raw materials except the zinc oxide in the step 1) into an internal mixer for mixing, timing for 5min when the temperature of the materials reaches 150 ℃, mixing into homogeneous rubber balls, and then discharging;

3) putting the high-temperature rubber balls obtained in the step 2) on an open mill, and opening the rubber balls to reduce the temperature to below 100 ℃; then, slowly dispersing the zinc oxide powder into the rubber sheet, and uniformly mixing the zinc oxide powder into the rubber sheet by a triangular packaging process;

4) the sheet material in the step 3) is subjected to an irradiation crosslinking process with the dosage of 30kGy of electron beam rays to form a crosslinked sheet material;

5) foaming the cross-linked sheet material obtained in the step 4) for 25min at 170 ℃ by a flat vulcanizing machine to obtain a foamed sheet material;

6) coating the pressure-sensitive adhesive on the surface of the foaming sheet in the step 5), and cutting into self-adhesive foaming far infrared physiotherapy patches with fixed shapes by a cutter.

Example 2

A method for preparing a self-adhesive far infrared physiotherapy patch by irradiation foaming comprises the following steps:

1) weighing the following materials for later use;

2) putting the other raw materials except the zinc oxide in the step 1) into an internal mixer for mixing, timing for 10min when the temperature of the materials reaches 160 ℃, mixing into homogeneous rubber balls, and discharging;

3) putting the high-temperature rubber balls obtained in the step 2) on an open mill, and opening the rubber balls to reduce the temperature to below 100 ℃; then, slowly dispersing the zinc oxide powder into the rubber sheet, and uniformly mixing the zinc oxide powder into the rubber sheet by a triangular packaging process;

4) the sheet material in the step 3) is subjected to an irradiation crosslinking process with the dosage of 35kGy of electron beam rays to form a crosslinked sheet material;

5) forming the crosslinked sheet obtained in the step 4) into a foamed sheet by a foaming process of a flat vulcanizing machine at 160 ℃ for 25 min;

6) coating the pressure-sensitive adhesive on the surface of the foaming sheet in the step 5), and cutting into self-adhesive foaming far infrared physiotherapy patches with fixed shapes by a cutter.

The invention has the beneficial effects that: according to the invention, an electron beam ray irradiation crosslinking mode is adopted, so that a toxic crosslinking vulcanizing agent is avoided, and a process guarantee is provided for material foaming; the mixing mode of banburying and open mixing is adopted, the addition amount of the ceramic powder can be increased, and a good homogeneous sheet material is prepared; preparing a soft and elastic sheet by adopting a material foaming mode; the surface of the foaming base material is coated with the pressure-sensitive adhesive to provide a self-adhesive form, so that the adhesive strength is provided for the sheet physical therapy patch; the invention adopts the superfine far infrared ceramic powder, so that the far infrared ceramic powder has excellent surface property, can have good dispersibility with other components, and ensures that the physiotherapy plaster has uniform heating and complete efficacy; the EVA is matched with the PE to adjust the toughness and strength of the sheet; EPDM elastomer increases the softness of the sheet; the titanium dioxide powder is metal oxide and also has the function of emitting far infrared rays; the silicone oil can be used as a coupling agent to increase the close combination of the powder material and the plastic raw material; TAIC is a sensitizer for irradiation crosslinking, and can reduce irradiation dose and increase the crosslinking degree of the sheet; the zinc oxide is an activating agent for foaming, and the foaming temperature of the foaming agent is reduced; in addition, the silicon dioxide powder is added, the structural porosity of the silicon dioxide powder is utilized, the temperature is controlled, the drug effect exerting time is prolonged through the energy storage effect, meanwhile, when the silicon dioxide powder is used by a patient, the using time can be properly adjusted according to the pain degree, the silicon dioxide powder can be repeatedly recycled, and the silicon dioxide powder is flexible and convenient to use; the medicinal patch has the advantages of simple preparation method, stable product quality, no skin adhesion, no need of heating, no toxic or side effect, no irritation, no sensitization and long-term clinical use.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.