A multi-layer material and its application method for the orthopedic restoration of lacquerware artifacts

Abstract

This invention provides a multi-layered material and method for the corrective restoration of lacquered wooden artifacts, relating to the field of wood restoration technology. By using a multi-layered material, the damaged parts of the artifact's wood are softened, and then corrective and fixed repair is achieved. This eliminates the need to disassemble the damaged wooden components for separate soaking, allowing the artifact to remain saturated with water for an extended period, thus ensuring its integrity. Frequent spraying of water to replenish the wooden components is unnecessary, saving manpower and increasing efficiency. The addition of propylene glycol enhances the moisturizing ability. Propylene glycol has good viscosity and hygroscopicity, is non-toxic, does not react with wood, and leaves no residue after evaporation, making it highly safe for use on artifacts. It can capture moisture from the air, greatly enhancing the moisturizing effect. The invention successfully combines a water-retaining agent and propylene glycol, allowing for both separate and combined use. The moisturizing time can be adjusted according to the actual moisturizing needs of the artifact, without affecting the inherent color of the wooden artifact.

Description

Technical Field

[0001] This invention relates to the field of wood restoration technology, specifically to a multi-layered material and its application method for the orthopedic restoration of lacquered wooden artifacts. Background Technology

[0002] Wooden artifacts refer to historical relics made primarily of wood, encompassing various wooden products from ancient times to the present, including furniture, utensils, and sculptures. Wooden artifacts are a diverse range of practical and decorative items made primarily of wood, including furniture, utensils, and handicrafts. They include everyday utensils such as bowls, plates, and chopsticks, as well as items from the Four Treasures of the Study, such as brush holders and ink boxes. Due to the long periods they have been unearthed, wooden artifacts often suffer some damage. Many surviving wooden furniture, utensils, and buildings exhibit problems such as warping, deformation, and cracking, severely affecting their structure and preservation.

[0003] Generally, existing technologies do not have particularly suitable protective methods for wood moisturizing and softening and repositioning cracked, warped, and cracked wood. The closest approach is to use long-term timed spraying, supplemented by moisturizing with plastic wrap, sponges, etc. However, this method has significant limitations and cannot be applied to large wooden components.

[0004] Existing technologies have the following drawbacks: they require disassembling wooden components for individual soaking, making it impossible to keep them saturated with water for extended periods; traditional methods of saturating wood require frequent spraying of water to replenish the components, which is cumbersome and inefficient; and the use of a composite solution of glyoxal and anhydrous ethanol for softening results in a darkening of the wood color in practical applications, affecting the appearance of the artifacts.

[0005] The information disclosed in the background section is intended to help understand the background of this disclosure, and may also include information on prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide a multi-layer material and method for the orthopedic restoration of lacquerware artifacts, in order to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A multi-layer material for the orthopedic restoration of lacquerware artifacts, comprising the following raw material components:

[0009] The multi-layer material is made of non-woven fabric, super absorbent polymer, fluff pulp, antibacterial fabric, 30% propylene glycol aqueous solution, and sage bark. The multi-layer material has a symmetrical structure, wherein the super absorbent polymer serves as the middle layer, and from the inner layer to the outer layer are super absorbent polymer, non-woven fabric, and antibacterial fabric. The multi-layer material is adsorbed and fixed by fluff pulp and sewn together in a grid pattern.

[0010] One layer of the nonwoven fabric is used to contact the artifact, and the other layer of nonwoven fabric is used to provide the overall structure and support;

[0011] The superabsorbent polymer is used to absorb and lock in a large amount of moisture, thus keeping the wood moisturized.

[0012] The fluff pulp is used to increase absorption capacity and ensure the positioning of the internal superabsorbent polymer material, thereby providing a water absorption effect;

[0013] The antibacterial fabric is used to inhibit the growth of bacteria and fungi, prevent bacterial growth and reproduction, ensure the cleanliness and safety of cultural relics, avoid the generation of odors, and reduce the risk of bacterial infection and spread.

[0014] The 30% propylene glycol aqueous solution is used to provide moisturizing effect;

[0015] The bark of *Pseudolarix amabilis* is used to inhibit pathogenic microorganisms, including fungi and bacteria.

[0016] Furthermore, each square meter of the multilayer material comprises the following raw material components by mass:

[0017] 60g non-woven fabric, 70g super absorbent polymer, 60g fluff pulp, 60g antibacterial fabric, 3000g 30% propylene glycol aqueous solution, 80g Pseudolarix bark.

[0018] Furthermore, the composition of the superabsorbent polymer is 50% polyacrylic acid, 30% sodium polyacrylate, 1% crosslinking agent, 3% plasticizer, 10% filler, and 5% other additives.

[0019] Furthermore, the crosslinking agent is N,N-methylenebisacrylamide, the plasticizer is phthalate, the filler includes one or more of talc, calcium carbonate, and silicates, and the other additives include one or two of antioxidants and preservatives.

[0020] Furthermore, the antibacterial fabric is made of bamboo fiber and silver ion antibacterial material.

[0021] This invention also provides a method for using a multi-layered material for the orthopedic restoration of lacquerware artifacts, comprising the following steps:

[0022] S1. Mark the area to be repaired, wrap the multi-layer material tightly to the cracked and warped wooden artifact surface of the area to be repaired, and spray the multi-layer material with deionized water until it is fully absorbed.

[0023] S2. The multi-layered material softens the cracked and warped wooden artifacts. Pressure is applied to the outside of the multi-layered material using a straightening tool, and the force is gradually increased to fix and straighten the damaged area.

[0024] S3. After the fixation and straightening are completed, remove the straightening tools and multiple layers of materials, and fix the surface of the wooden artifact after the straightening treatment.

[0025] Furthermore, in S3, the surface of the corrected wooden artifact is fixed by bonding or using bamboo nails and tung oil putty.

[0026] Furthermore, the orthopedic tool includes a trigger-type woodworking clamp and a pad, the multilayer material covers the surface of the cracked and warped wooden artifact, the pad is disposed on the multilayer material, and the trigger-type woodworking clamp applies pressure to the outside of the multilayer material by squeezing the pad.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] This invention utilizes a multi-layered material to soften damaged parts of the wooden artifact, followed by orthopedic fixation and repair. This eliminates the need for separate soaking of the damaged wooden components, allowing the artifact to remain saturated with water for an extended period, thus preserving its integrity. During use, the multi-layered material's water-retention properties eliminate the need for frequent spraying of the wooden components, saving manpower and increasing efficiency. The addition of propylene glycol enhances the moisturizing effect. Propylene glycol has good viscosity and hygroscopicity, is non-toxic, does not react with wood, and leaves no residue after evaporation, ensuring high safety for artifacts. Its excellent hygroscopicity allows it to capture moisture from the air, significantly enhancing the moisturizing effect. The successful combination of a water-retaining agent and propylene glycol allows for both separate and combined use, adjusting the moisturizing time according to the artifact's actual moisturizing needs without affecting the artifact's inherent color. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0030] The following embodiments are only used to more clearly illustrate the technical solutions of the present invention, and are therefore merely examples and should not be used to limit the scope of protection of the present invention. For those skilled in the art, any equivalent modifications and substitutions to the embodiments described below are also within the scope of the present invention. Therefore, all equivalent transformations and modifications made without departing from the spirit and scope of the present invention should be covered within the scope of the present invention. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall apply. All reagents or instruments whose manufacturers are not specified are commercially available conventional products.

[0031] To better illustrate the invention, numerous specific details are set forth in the following detailed description. Those skilled in the art will understand that the invention can be practiced without certain specific details. In other embodiments, methods, means, apparatus, and steps well known to those skilled in the art have not been described in detail in order to highlight the spirit of the invention. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art. Unless otherwise specified, all units used in this specification are International Standard Units (SI), and all numerical values ​​and ranges appearing in this invention should be understood to include unavoidable errors in industrial production.

[0032] This invention provides a technical solution:

[0033] A multi-layer material for the orthopedic restoration of lacquered wooden artifacts, particularly suitable for the restoration and preservation of wooden artifacts, comprises the following raw material components:

[0034] The multi-layer material is made of non-woven fabric, super absorbent polymer, fluff pulp, antibacterial fabric, 30% propylene glycol aqueous solution, and sage bark. The multi-layer material has a symmetrical structure, wherein the super absorbent polymer serves as the middle layer, and from the inner layer to the outer layer are super absorbent polymer, non-woven fabric, and antibacterial fabric. The multi-layer material is adsorbed and fixed by fluff pulp and sewn together in a grid pattern.

[0035] The following describes the roles of each raw material component in multilayer materials:

[0036] Non-woven fabric is divided into a top layer and a bottom layer. The top layer is in direct contact with the cultural relics and uses spunlace non-woven fabric to provide better comfort, while the bottom layer provides the overall structure and support.

[0037] The superabsorbent polymer has a strong water absorption and retention capacity, which can absorb and lock in a large amount of moisture, thus keeping the wood moisturized.

[0038] The fluff pulp is used to increase absorption capacity and ensure the positioning of the internal superabsorbent polymer material, preventing it from shifting and providing better water absorption.

[0039] The antibacterial properties effectively inhibit the growth of bacteria and fungi, prevent bacterial growth and reproduction, thereby keeping the product clean and the artifact safe, avoiding odors, and reducing the risk of bacterial infection and spread. The antibacterial fabric is made of antibacterial fibers that can inhibit the growth of common harmful bacteria such as Staphylococcus aureus, Escherichia coli, and Candida albicans.

[0040] The 30% propylene glycol aqueous solution has good viscosity and hygroscopicity, and is non-toxic. Since propylene glycol does not react with wood and leaves no residue after volatilization, it is highly safe for use on cultural relics. Its good hygroscopicity can capture moisture in the air and greatly enhance the moisturizing effect.

[0041] The bark of *Pseudolarix amabilis* is in powder form. First, the dried bark is cleaned of impurities, then ground into fine powder using a pulverizing device, and then sieved to ensure uniform particle size. This allows it to be fully mixed into absorbent materials and fluff pulp. The bark is used to inhibit pathogenic microorganisms, including fungi and bacteria.

[0042] The multilayer material of the present invention is prepared at room temperature (25 degrees Celsius) and humidity (not exceeding 45%), and is prepared in units of square meters. The outermost layer is an antibacterial fabric, the inner layers are non-woven fabric and fluff pulp, the middle layer is a super absorbent polymer material, which is adsorbed and fixed by fluff pulp, and finally sewn together in a grid pattern.

[0043] Specifically, each square meter of the multilayer material includes the following raw material components by mass:

[0044] 60g non-woven fabric, 70g super absorbent polymer, 60g fluff pulp, 60g antibacterial fabric, 3000g 30% propylene glycol aqueous solution, 80g Pseudolarix bark.

[0045] Specifically, the composition of the superabsorbent polymer is 50% polyacrylic acid, 30% sodium polyacrylate, 1% crosslinking agent, 3% plasticizer, 10% filler, and 5% other additives. Polyacrylic acid has excellent water absorption and gel-forming ability, and is the main component of the superabsorbent polymer. Its numerous carboxyl groups can form hydrogen bonds with water molecules, absorbing a large amount of water. Sodium acrylate, the sodium salt of acrylic acid, further enhances the material's water solubility and ionic conductivity. The polymer network it forms in water provides better water absorption and retention capacity, and also has certain antifreeze and heat resistance.

[0046] Specifically, the crosslinking agent is N,N-methylenebisacrylamide, the plasticizer is phthalate, the filler includes one or more of talc, calcium carbonate, and silicates, and the other additives include one or two of antioxidants and preservatives. The crosslinking agent enhances the structural stability of the polymer, forming a three-dimensional crosslinked network. N,N-methylenebisacrylamide promotes the crosslinking reaction between acrylic acid and sodium acrylate, allowing the material to maintain its shape after moisture absorption and preventing dissolution. The plasticizer lowers the glass transition temperature of the polymer. The filler reduces material costs while improving the physical and processing properties of the product. One or more of talc, calcium carbonate, and silicates increase the strength, toughness, and abrasion resistance of the material, and can also adjust the density and texture. The antioxidant prevents degradation of the polymer due to oxidation during production and use, extending the material's service life. The preservative inhibits microbial growth, maintains the quality and stability of the finished product, and ensures that it does not spoil or deteriorate during storage and use.

[0047] Specifically, the antibacterial fabric is made of bamboo fiber and silver ion antibacterial material. The bamboo fiber and silver ion antibacterial material achieve antibacterial function through natural or chemical treatment. Bamboo fiber is naturally antibacterial, moisture-wicking and breathable, while silver ions destroy bacterial cells and provide long-lasting antibacterial protection.

[0048] This invention also provides a method for using a multi-layered material for the corrective restoration of lacquerware artifacts, specifically including the following steps:

[0049] Step 1: Mark the area to be repaired, wrap the multi-layer material tightly to the cracked and warped wooden artifact surface, and spray the multi-layer material with deionized water until it is fully absorbed.

[0050] Step 2: The multi-layered material softens the cracked and warped wooden artifacts. Pressure is applied to the outside of the multi-layered material using a straightening tool, gradually increasing the force to fix and straighten the damaged area.

[0051] Step 3: After the fixation and straightening are completed, remove the straightening tools and multiple layers of materials, and fix the surface of the wooden artifact after the straightening treatment.

[0052] Specifically, in S3, the surface of the shaped wooden artifact is fixed by bonding or using bamboo nails and tung oil putty.

[0053] Specifically, the orthopedic tool includes a trigger-type woodworking clamp and a pad. The multi-layer material covers the surface of the cracked and warped wooden artifact. The pad is placed on the multi-layer material. The trigger-type woodworking clamp applies pressure to the outside of the multi-layer material by squeezing the pad.

[0054] Repairing warped or damaged wooden edges of cultural relics involves the following steps:

[0055] Step 1: Mark the warped and damaged parts of the wooden artifact's edge, use propylene glycol and steam to heat and humidify to soften it initially, wrap the multi-layer material tightly to the warped wooden artifact's surface to be repaired, and spray the multi-layer material with deionized water until it is fully absorbed.

[0056] Step 2: Compress and fix multiple layers of material using orthopedic tools, gradually increasing the compressing force;

[0057] Step 3: After the correction is completed, remove the multiple layers of material and fix the warped and damaged parts with bamboo nails and tung oil putty to ensure that the subsequent wood re-attachment repair is in a stable state.

[0058] Repairing cracks and damage to the surface of wooden artifacts involves the following steps:

[0059] Step 1: Mark the warped and damaged parts of the wooden artifact's edge, wrap the multi-layer material tightly with the warped wooden artifact's surface to be repaired, and spray the multi-layer material with deionized water until it is fully absorbed.

[0060] Step 2: The multi-layered material softens the cracked and warped wooden artifacts. Pressure is applied to the outside of the multi-layered material using a straightening tool, gradually increasing the force to fix and straighten the damaged area.

[0061] Step 3: After the fixation and orthodontic treatment are completed, remove the orthodontic tools and multiple layers of materials, and then apply adhesive to fix the damaged area after the orthodontic treatment is completed.

[0062] The present invention has the following effects:

[0063] This method allows for prolonged saturation of damaged wooden components of cultural relics without requiring separate soaking. During use, the multi-layered material's water-retention properties eliminate the need for frequent spraying of water to replenish the wooden components. The addition of propylene glycol enhances its moisturizing ability; propylene glycol has good viscosity and hygroscopicity, is non-toxic, does not react with wood, and leaves no residue after evaporation, ensuring high safety for use on cultural relics. Its excellent hygroscopicity allows it to capture moisture from the air, significantly enhancing the moisturizing effect. The successful combination of water-retaining agent and propylene glycol allows for both individual and combined use, adjustable according to the actual moisturizing needs of the cultural relic, and control of the moisturizing time. This scientific and flexible approach allows restorers to replenish water as needed based on the expansion degree of the multi-layered material during the restoration process. The water-retaining agent, also known as water-absorbing resin, can be used with pure water or with propylene glycol to enhance saturation and prolong saturation time. The principle of the water-retaining agent is that it shrinks when it loses water and expands when it swells. After shrinkage, appropriate water should be added to maintain its saturated state. When controlling the moisturizing time, different stages of the artifact have different moisturizing requirements. For example, during the excavation of a ship hull, moisturizing should be carried out throughout the entire excavation process. When straightening dry ship materials, the moisturizing time needs to be controlled. After the moisture content meets the straightening requirements, the wood to be straightened should be softened in time. Long-term high humidity will cause the surrounding good wood to be in a semi-dry and semi-wet state and collapse. The principle of controlling the moisturizing time is the application time of this multi-layer material. It should be noted that if the multi-layer material shrinks due to water loss, pure water needs to be added in time to keep the multi-layer material in a saturated state.

[0064] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications and substitutions should be covered within the scope of the claims of the present invention. Technical aspects, shapes, and structures not described in detail in this invention are all well-known technologies.

[0065] The above description is merely a specific embodiment of this application, but the protection scope of this application is not limited to the specific embodiment. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the protection scope of this application.

Claims

1. A multi-layered material for the orthopedic restoration of lacquerware artifacts, characterized in that, It includes the following raw material components: The multi-layer material is made of non-woven fabric, super absorbent polymer, fluff pulp, antibacterial fabric, 30% propylene glycol aqueous solution, and sage bark. The multi-layer material has a symmetrical structure, in which the super absorbent polymer serves as the middle layer, and from the inner layer to the outer layer are super absorbent polymer, non-woven fabric, and antibacterial fabric. The multi-layer material is adsorbed and fixed by fluff pulp and sewn together in a grid pattern. One layer of the nonwoven fabric is used to contact the artifact, and the other layer of nonwoven fabric is used to provide the overall structure and support; The superabsorbent polymer is used to absorb and lock in a large amount of moisture, thus keeping the wood moisturized. The fluff pulp is used to increase absorption capacity and ensure the positioning of the internal superabsorbent polymer material, thereby providing a water absorption effect; The antibacterial fabric is used to inhibit the growth of bacteria and fungi, prevent bacterial growth and reproduction, ensure the cleanliness and safety of cultural relics, avoid the generation of odors, and reduce the risk of bacterial infection and spread. The 30% propylene glycol aqueous solution is used to provide moisturizing effect; The bark of *Pseudolarix amabilis* is used to inhibit pathogenic microorganisms, including fungi and bacteria.

2. The multi-layer material for the orthopedic restoration of lacquerware artifacts according to claim 1, characterized in that: The multilayer material per square meter comprises the following raw material components by mass: 60g non-woven fabric, 70g super absorbent polymer, 60g fluff pulp, 60g antibacterial fabric, 3000g 30% propylene glycol aqueous solution, 80g Pseudolarix bark.

3. The multi-layer material for the orthopedic restoration of lacquerware artifacts according to claim 2, characterized in that: The composition of the superabsorbent polymer is 50% polyacrylic acid, 30% sodium polyacrylate, 1% crosslinking agent, 3% plasticizer, 10% filler, and 5% other additives.

4. The multi-layer material for the orthopedic restoration of lacquerware artifacts according to claim 3, characterized in that: The crosslinking agent is N,N-methylenebisacrylamide, the plasticizer is phthalate, the filler includes one or more of talc, calcium carbonate, and silicates, and the other additives include one or two of antioxidants and preservatives.

5. A multi-layer material for the orthopedic restoration of lacquerware artifacts according to claim 2, characterized in that: The antibacterial fabric is made of bamboo fiber and silver ion antibacterial materials.

6. A method of using a multi-layer material for the orthopedic restoration of lacquerware artifacts, comprising using the multi-layer material for the orthopedic restoration of lacquerware artifacts as described in claim 1, characterized in that, Specifically, the following steps are included: S1. Mark the area to be repaired, wrap the multi-layer material tightly to the cracked and warped wooden artifact surface of the area to be repaired, and spray the multi-layer material with deionized water until it is fully absorbed. S2. The multi-layered material softens the cracked and warped wooden artifacts. Pressure is applied to the outside of the multi-layered material using a straightening tool, and the force is gradually increased to fix and straighten the damaged area. S3. After the fixation and straightening are completed, remove the straightening tools and multiple layers of materials, and fix the surface of the wooden artifact after the straightening treatment.

7. The method of using a multi-layer material for the orthopedic restoration of lacquerware artifacts according to claim 6, characterized in that: In step S3, the surface of the shaped wooden artifact is fixed by bonding or using bamboo nails and tung oil putty.

8. The method of using a multi-layer material for the orthopedic restoration of lacquered wooden artifacts according to claim 6, characterized in that: The orthopedic tool includes a trigger-type woodworking clamp and a pad. The multi-layer material covers the surface of the cracked and warped wooden artifact. The pad is placed on the multi-layer material. The trigger-type woodworking clamp applies pressure to the outside of the multi-layer material by squeezing the pad.