Coating processing technology for improving skin-friendly feeling

Abstract

The invention discloses a coating processing technology for improving skin-friendly feeling. The coating processing technology comprises the following steps: melting a low-temperature thermoplastic material; brushing or spraying the molten low-temperature solution on a stainless steel platform; curing the low-temperature solution brushed or sprayed on the stainless steel platform at room temperature to form a low-temperature thin film; brushing the suede paste on the surface of the low-temperature thin film through a silk screen; baking the suede paste by using a heating plate, enabling the interior of the suede paste to be subjected to chemical reaction to form micro-bubble pores, simultaneously melting the low-temperature film at the bottom at high temperature, tightly combining the low-temperature film with the suede paste, and then cooling to form a suede paint film; taking down the suede paint film, and carrying out irradiation crosslinking; preparing a low-temperature thermoplastic plate by utilizing an extrusion process; and thermally laminating the irradiated suede paint film on the surface of the low-temperature thermoplastic plate. The thermoplastic plate manufactured by the process can be applied to body position fixation in the radiotherapy process and orthopedics, and the thermoplastic plate is high in elongation at break, good in elasticity, memorable, comfortable in touch when being in contact with skin, attractive in appearance and easy to cut.

Description

Technical Field

[0001] The invention relates to the technical field of clinical medicine, and in particular to a coating processing technology for increasing skin-friendliness. Background Art

[0002] Clinically, low-temperature thermoplastic plates are generally used to wrap and fix patients. The thermoplastic plates fit closely to the skin. Because they are worn for a long time, the initial state of the thermoplastic plate surface will cause discomfort to the patient, and the joints will also cause skin damage due to friction. Currently, the market generally adopts the method of wrapping gauze on the skin, but this method cannot observe the wound surface because the affected area is closed, and complications cannot be treated in time; another method is to heat-seal the polyurethane sponge to the surface of the thermoplastic plate to improve comfort, but there are the following problems: the hot melt adhesive will enter the sponge pores after melting. At this time, the sponge is in a compressed state, so the polyurethane sponge cannot fully recover after compression, and even part of the hot melt adhesive seeps onto the sponge surface, affecting the surface comfort. Summary of the invention

[0003] In view of the problems existing in the prior art, the present invention provides a coating processing technology for increasing skin-friendly feeling.

[0004] When applying suede paint on low-temperature thermoplastic boards, the first problem is that the paint needs to be applied on the board surface and then baked at a high temperature of 120-180°C to foam the paint to form a soft and skin-friendly feel. However, the softening point of low-temperature boards is generally around 60°C. High-temperature baking will cause the low-temperature boards to soften and deform, affecting the appearance of the product and even affecting its applicability. The process of this application first brushes the melted low-temperature board material on the stainless steel plate to form a 0.1-0.4 film after hardening. Then, the suede slurry is applied to the surface of the film with a 30-140 mesh screen and baked at 120-180°C. The main components of the suede slurry include water-based polyurethane resin, polyester hydroxyl resin, xylene, hydrophilic additives, curing agents, foaming agents, etc. The main function of the foaming agent is to inject air into the material to form countless closed and dense pores, which make the surface of the material present a suede effect. At this time, the low-temperature film at the bottom is also integrated with the suede paint. The foamed paint film is removed and irradiated for cross-linking. The cross-linked coating has a 100-500% elongation at break because a three-dimensional mesh structure is formed inside. The irradiated velvet paint film is thermally bonded to the surface of the low-temperature thermoplastic plate. Because the bottom of the paint film is also a low-temperature material, it can be easily bonded at a temperature of about 55-120°C. This method can be used on thermoplastic plates cut according to various parts of the human body, and can also be punched and cut for the second time after the coating is formed. The completed thermoplastic plate can be punched with meshes of various specifications according to clinical needs.

[0005] The thermoplastic plate made by this method has high elongation at break, good elasticity, memory, comfortable touch, beautiful appearance, easy to cut, convenient for doctors to operate. The production process is also simple and convenient for large-scale production.

[0006] In order to achieve the above object, the present invention provides a coating processing technology for increasing skin-friendly feel, comprising the following steps:

[0007] Step S1: melting low-temperature thermoplastic material;

[0008] Step S2: brushing or spraying: brushing or spraying the molten low-temperature solution onto the stainless steel platform;

[0009] Step S3: Cooling and film formation: at room temperature, the low-temperature solution brushed or sprayed onto the stainless steel platform is solidified to form a low-temperature film;

[0010] Step S4: brushing suede slurry: brushing the suede slurry onto the surface of the low-temperature film through a screen;

[0011] Step S5: high temperature foaming: using a heating plate to bake the suede pulp, so that a chemical reaction occurs inside the suede pulp to form microbubbles, and at the same time the low-temperature film at the bottom melts at high temperature and is tightly combined with the suede pulp, and then cooled to form a suede paint film;

[0012] Step S6: removing the suede paint film and performing radiation cross-linking;

[0013] Step S7: preparing a low-temperature thermoplastic plate by extrusion process;

[0014] Step S8: thermally bonding the irradiated suede paint film to the surface of the low-temperature thermoplastic plate;

[0015] Step S9: punching holes in the fitted skin-friendly plate;

[0016] Step S10: cutting and forming.

[0017] Preferably, in step S1, the low temperature thermoplastic material is selected from acrylic or polyurethane resin.

[0018] Preferably, in step S3, the thickness of the low-temperature film is 0.1 mm-0.4 mm, and the curing time is 20 s-30 s.

[0019] Preferably, in step S4, main components of the suede pulp include water-based polyurethane resin, polyester hydroxyl resin, xylene, hydrophilic additive, curing agent, deionized water, color paste, foaming agent, anti-ultraviolet additive, brightening agent, emulsifier, talcum powder and glass fiber.

[0020] Preferably, in step S4, the aperture of the screen is 30-140 mesh.

[0021] Preferably, in step S5, the temperature of the heating plate is 120°C to 180°C, and the diameter of the microbubble pores is in the range of 0.2 mm to 0.5 mm.

[0022] Preferably, in step S6, a three-dimensional network structure is formed inside the suede paint film after radiation cross-linking, forming a suede paint film coating with a breaking elongation of 100%-500%.

[0023] Preferably, in step S8, the temperature of thermal bonding is 55°C-120°C.

[0024] The technical solution of the present invention has the following beneficial effects:

[0025] Improved comfort: By forming a suede film on the low-temperature thermoplastic board, a soft, porous surface is created, which significantly improves the comfort when in contact with the skin and reduces discomfort and skin damage caused by long-term wearing.

[0026] Enhanced breathability and observation: Compared with traditional gauze wrapping, velvet paint film provides better breathability while allowing observation of the wound surface, facilitating timely detection and treatment of complications.

[0027] Avoid material damage: The use of suede paint film avoids damage to the polyurethane sponge by hot melt adhesive, ensuring the integrity and functionality of the material.

[0028] Improve durability and stability: The suede paint film after radiation cross-linking forms a three-dimensional network structure, which improves the elongation at break and durability of the material, making the coating less prone to damage and extending the service life of the product.

[0029] Easy to cut and customize: The coated thermoplastic sheet is easy to cut and punch, and can be customized according to the patient's specific needs, improving the personalization and effectiveness of treatment.

[0030] Aesthetics: The suede finish provides a uniform and attractive appearance, improving product aesthetics and also increasing patient acceptance.

[0031] Simplified production process: The process of the present invention is simple and easy to mass produce, which helps to reduce costs and improve production efficiency.

[0032] The thermoplastic plate made by the process of the present invention can be used for body position fixation during radiotherapy and orthopedic correction. It has high elongation at break, good elasticity, memory, comfortable touch on the skin, beautiful appearance, easy cutting, convenient operation by doctors, simple production process, and is convenient for large-scale production. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a process flow chart of the present invention. DETAILED DESCRIPTION

[0034] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0035] Reference Figure 1 The present invention provides a coating processing technology for increasing skin-friendly feeling, comprising the following steps:

[0036] Step S1: Melting low-temperature thermoplastic material for subsequent brushing or spraying operations. The molten material is easier to be evenly coated on the surface, laying the foundation for forming a uniform film; the low-temperature thermoplastic material is selected from acrylic or polyurethane resin.

[0037] Step S2: brushing or spraying: brushing or spraying the molten low-temperature solution onto the stainless steel platform;

[0038] Step S3: Cooling and film formation: at room temperature, the low-temperature solution brushed or sprayed onto the stainless steel platform is solidified to form a low-temperature film of 0.1 mm to 0.4 mm; the solidification time in step S3 is 20s to 30s, and rapid solidification can reduce production time, improve efficiency, and ensure uniformity and integrity of the film;

[0039] Step S4: brushing suede slurry: brushing the suede slurry onto the surface of the low-temperature film through a 30-140 mesh screen; uniform coating of the suede slurry helps to form a uniform suede effect, thereby improving the texture and comfort of the final product.

[0040] Step S5: high-temperature foaming: Use a heating plate to bake the suede pulp to cause a chemical reaction inside the suede pulp to form microbubble pores. At the same time, the low-temperature film at the bottom melts at high temperature and is tightly combined with the suede pulp. After cooling, a suede paint film is formed; the microbubble pores increase the softness and skin-friendliness of the material, while improving the breathability and comfort of the material.

[0041] Step S6: removing the suede paint film and performing radiation cross-linking; radiation cross-linking can improve the elongation at break and durability of the material, making it more suitable for long-term use.

[0042] Step S7: preparing a low-temperature thermoplastic plate by extrusion process;

[0043] Step S8: thermally bonding the irradiated suede paint film to the surface of the low-temperature thermoplastic plate;

[0044] Step S9: punching holes in the laminated skin-friendly plate to meet specific usage requirements, such as air permeability or fixing method; the punching holes can be customized according to different application scenarios to improve the applicability and functionality of the product;

[0045] Step S10: Cutting and forming: cutting the skin-friendly board into the required shape and size as needed, so that the product can meet the specific size requirements and is convenient for practical application and installation.

[0046] Further, in step S4, the main components of the suede slurry include water-based polyurethane resin, polyester hydroxyl resin, xylene, hydrophilic additive, curing agent, deionized water, color paste, foaming agent, anti-ultraviolet additive, brightening agent, emulsifier, talcum powder and glass fiber. The main function of the foaming agent is to inject air into the material to form countless closed dense pores, which make the surface of the material present a suede effect; the functions of these components in the suede slurry are as follows: water-based polyurethane resin and polyester hydroxyl resin: provide adhesion and stability of the slurry, water-based polyurethane resin: ensure the firm bonding of the coating and the substrate, enhance the durability and weather resistance of the coating, and improve the service life of the product. Polyester hydroxyl resin: synergistically acts with water-based polyurethane resin to enhance the adhesion and flexibility of the coating, improve the crack resistance and impact resistance of the coating, and make the coating more durable. Xylene: As a solvent, it helps dissolve other ingredients, so that the suede slurry has appropriate viscosity and fluidity, which is convenient for coating; Hydrophilic additives: Improve the hydrophilicity of the slurry, improve the air permeability and comfort after printing and dyeing, make the coating more suitable for contact with the skin, and improve the comfort of wearing or using. Curing agent: Enhance the curing effect of the slurry, improve adhesion and wear resistance. Deionized water: dilutes the slurry for easy construction; color paste: provides the required color to meet the color requirements of different application scenarios and improve the aesthetics of the product; foaming agent: makes the slurry form a suede effect after printing and dyeing, increases the softness and skin-friendliness of the coating; anti-UV additives: protect the fabric from UV damage and extend the service life; brightener: increases the brightness of the color and improves the aesthetics of the product; emulsifier, talcum powder and glass fiber: improve the fluidity and physical properties of the slurry; emulsifier: improves the stability and uniformity of the slurry, making it easier to apply, improving construction efficiency and coating uniformity; talcum powder: improves the fluidity and physical properties of the slurry, improves the wear resistance and scratch resistance of the coating, and improves the durability and protective performance of the coating; glass fiber: enhances the physical properties of the slurry and improves the strength and tear resistance of the coating.

[0047] Furthermore, in step S5, the temperature of the heating plate is 120°C-180°C, ensuring that the foaming agent in the suede pulp can be decomposed under controlled conditions to form uniform microbubble pores. By precisely controlling the temperature, the production process can be optimized and the product quality and consistency can be improved. The diameter of the microbubble pores ranges from 0.2mm to 0.5mm. These microbubble pores create a soft, porous structure in the suede pulp, increasing the skin-friendliness and comfort of the material.

[0048] Furthermore, a three-dimensional network structure is formed inside the suede paint film after radiation cross-linking, forming a suede paint film coating with a breaking elongation of 100%-500%.

[0049] Radiation cross-linking is a chemical reaction triggered by high-energy radiation (such as electron beams or gamma rays), which can interconnect the polymer molecular chains in the suede paint film to form a three-dimensional network structure. This structure enhances the internal cohesion and mechanical stability of the material; improves the adaptability of the material to different usage conditions and shape changes; enhances the comfort of the material, especially in applications that come into contact with the skin, such as medical dressings or orthopedic braces, which can provide better fit and comfort and reduce the risk of damage or rupture caused by stretching during use.

[0050] Further, in step S8, the temperature of the heat bonding is 55°C-120°C to avoid degradation of the physical properties of the suede paint film or the low-temperature thermoplastic plate due to excessively high temperature, such as excessive melting, deformation or degradation;

[0051] At the appropriate temperature, the bond between the suede paint film and the low-temperature thermoplastic board is stronger, reducing the risk of peeling and improving the durability and reliability of the product.

[0052] It can be seen from the above embodiments that the present invention improves comfort: by forming a suede paint film on a low-temperature thermoplastic board, a soft, porous surface is created, which significantly improves the comfort when in contact with the skin and reduces the discomfort and skin damage caused by long-term wearing.

[0053] Enhanced breathability and observation: Compared with traditional gauze wrapping, velvet paint film provides better breathability while allowing observation of the wound surface, facilitating timely detection and treatment of complications.

[0054] Avoid material damage: The use of suede paint film avoids damage to the polyurethane sponge by hot melt adhesive, ensuring the integrity and functionality of the material.

[0055] Improve durability and stability: The suede paint film after radiation cross-linking forms a three-dimensional network structure, which improves the elongation at break and durability of the material, making the coating less prone to damage and extending the service life of the product.

[0056] Easy to cut and customize: The coated thermoplastic sheet is easy to cut and punch, and can be customized according to the patient's specific needs, improving the personalization and effectiveness of treatment.

[0057] Aesthetics: The suede finish provides a uniform and attractive appearance, improving product aesthetics and also increasing patient acceptance.

[0058] Simplified production process: The process of the present invention is simple and easy to mass produce, which helps to reduce costs and improve production efficiency.

[0059] The thermoplastic plate made by the process of the present invention can be used for body position fixation during radiotherapy and orthopedic correction. It has high elongation at break, good elasticity, memory, comfortable touch on the skin, beautiful appearance, easy cutting, convenient operation by doctors, simple production process, and is convenient for large-scale production.

[0060] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A coating process for increasing skin-friendliness, characterized in that: The steps include: Step S1: melting low-temperature thermoplastic material; Step S2: brushing or spraying: brushing or spraying the molten low-temperature solution onto the stainless steel platform; Step S3: Cooling and film formation: at room temperature, the low-temperature solution brushed or sprayed onto the stainless steel platform is solidified to form a low-temperature film; Step S4: brushing suede slurry: brushing the suede slurry onto the surface of the low-temperature film through a screen; Step S5: high temperature foaming: using a heating plate to bake the suede pulp, so that a chemical reaction occurs inside the suede pulp to form microbubbles, and at the same time the low-temperature film at the bottom melts at high temperature and is tightly combined with the suede pulp, and then cooled to form a suede paint film; Step S6: removing the suede paint film and performing radiation cross-linking; Step S7: preparing a low-temperature thermoplastic plate by extrusion process; Step S8: thermally bonding the irradiated suede paint film to the surface of the low-temperature thermoplastic plate.

2. The coating process for increasing skin-friendliness according to claim 1, characterized in that: The coating process step of increasing skin-friendly feeling also includes Step S9: punching holes in the fitted skin-friendly plate; Step S10: cutting and forming.

3. The coating processing technology for increasing skin-friendly feeling according to claim 1, characterized in that: In step S1, the low temperature thermoplastic material is selected from acrylic or polyurethane resin.

4. The coating process for increasing skin-friendly feeling according to claim 1, characterized in that: In step S3, the thickness of the low-temperature film is 0.1 mm-0.4 mm, and the curing time is 20 s-30 s.

5. The coating process for increasing skin-friendly feeling according to claim 1, characterized in that: In step S4, main components of the velvet slurry include water-based polyurethane resin, polyester hydroxyl resin, xylene, hydrophilic additive, curing agent, deionized water, color paste, foaming agent, anti-ultraviolet additive, brightening agent, emulsifier, talcum powder and glass fiber.

6. The coating process for increasing skin-friendly feeling according to claim 1, characterized in that: In step S4, the aperture of the screen is 30-140 mesh.

7. The coating process for increasing skin-friendly feeling according to claim 1, characterized in that: In step S5, the temperature of the heating plate is 120°C to 180°C, and the diameter of the microbubble pores ranges from 0.2 mm to 0.5 mm.

8. The coating process for increasing skin-friendliness according to claim 1, characterized in that: In step S6, a three-dimensional network structure is formed inside the suede paint film after radiation cross-linking, forming a suede paint film coating with a breaking elongation of 100%-500%.

9. The coating process for increasing skin-friendly feeling according to claim 1, characterized in that: In step S8, the temperature of thermal bonding is 55°C to 120°C.

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