Cultural relic cushion packaging system and method

Abstract

The invention provides a cultural relic buffering packaging system and method. The problems that buffering and fixing performance of existing cultural relic packaging are difficult to consider at the same time, chemical stability of materials is doubted, the environment is not friendly, and the wrapping performance of cultural relics in irregular shapes is poor are solved. The cultural relic buffering packaging system comprises a vacuum bag used for packaging cultural relics and a plurality of elastic buffering particles, and the space between the cultural relics and the vacuum bag is filled with the buffering particles. After the vacuum bag is vacuumized, the plurality of buffer particles are tightly arranged and form a buffer body which completely wraps the cultural relics; the cultural relic cushion packaging method comprises the steps of ETPU particle filling, cultural relic putting, ETPU particle filling, vacuumizing and shaping, sealing, packaging and the like. The ETPU particles have fluidity before being vacuumized and can be filled into any gap; and after vacuumizing, the particles are mutually locked under uniform atmospheric pressure to form a rigid whole perfectly attached to the appearance of the cultural relic, so that all-directional and stress-concentration-free wrapping is realized.

Description

Technical Field

[0001] This invention belongs to the field of cultural relic protection technology, and relates to a cultural relic cushioning packaging system and method. Background Technology

[0002] During the transportation, handling, and storage of cultural relics, ceramics, glass, bronzes, precision instruments, and fragile archaeological artifacts are highly susceptible to damage or even destruction due to vibration, impact, compression, or fluctuations in environmental temperature and humidity. Therefore, packaging and protecting cultural relics is crucial. Currently, traditional methods of packaging and protecting cultural relics mainly include the following categories:

[0003] 1. Filling method: Use materials such as foam blocks, sponges, shredded paper, and wood fibers to fill the space inside the box. These materials often have limited cushioning performance and poor shape adaptability, and may not be able to fit tightly to the complex surface of the cultural relic, leaving room for movement; at the same time, they are prone to generating dust or debris during use, posing a risk of contaminating the cultural relic.

[0004] 2. Molding method: such as on-site polyurethane foaming or custom foam lining. Although this method can provide a good fit, the process is complex and costly, and the materials are usually for single use, which is not environmentally friendly, and chemical residues may cause long-term potential harm to cultural relics.

[0005] 3. Airbag / air cushion method: Inflatable bags are used to secure cultural relics. However, their cushioning stability is affected by air pressure, there is a risk of air leakage, and they do not provide sufficient protection for sharp parts.

[0006] Foamed materials are foamed particles produced using supercritical fluid physical microporous foaming technology. They possess excellent elasticity, resistance to compression fatigue, high resilience, and good mechanical strength, and are widely used in high-end sports shoe midsoles, sports equipment, and other fields. Currently, there are no technologies available for applying such materials to the packaging and protection of cultural relics. Summary of the Invention

[0007] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a cultural relic cushioning packaging system and method that offers excellent protection, is environmentally friendly, and is recyclable.

[0008] The objective of this invention can be achieved through the following technical solutions:

[0009] The artifact cushioning packaging system includes a vacuum bag for sealing the artifact and several elastic cushioning particles, which are placed between the artifact and the vacuum bag. After the vacuum bag is evacuated, the cushioning particles are tightly arranged to form a cushioning body that completely encloses the artifact. To facilitate the placement of the artifact and cushioning particles into the vacuum bag, an inlet is provided on the vacuum bag, which can be sealed by adhesive, fastening, or other methods. An exhaust port is also provided on the vacuum bag; after connecting a vacuum pump, a vacuuming process can be performed, and the exhaust port can then be sealed to prevent outside air from entering.

[0010] In the aforementioned cultural relic cushioning packaging system, the cushioning particles are ETPU particles.

[0011] ETPU granules are made of thermoplastic polyurethane through physical or chemical foaming processes. They have a microporous honeycomb structure and are lightweight, highly resilient, and compression resistant.

[0012] In the aforementioned cultural relic cushioning packaging system, the ETPU granules are spherical or pulverized, with a particle size of 2mm to 10mm and a density of 0.1 to 0.3g / cm³. Granules of this specification possess both good flowability and compression resistance.

[0013] The aforementioned cultural relic cushioning packaging system also includes a sealed container for placing a vacuum bag inside, with several cushioning particles filling the space between the sealed container and the vacuum bag.

[0014] The method for cushioning and packaging cultural relics includes the following steps:

[0015] S1, ETPU granule filling: Fill the bottom of the vacuum bag with ETPU granules;

[0016] S2. Place the artifact: Place the artifact in a vacuum bag and support it on ETPU particles;

[0017] S3, ETPU particle filling: Continuously fill the artifact with ETPU particles around and on top until the artifact is completely covered and exceeds its highest point by a certain height;

[0018] S4. Vacuuming and Shaping: The inside of the vacuum bag is vacuumed. Under the action of external atmospheric pressure, the vacuum bag shrinks and applies pressure evenly to the ETPU particles inside, causing the particles to flow, rearrange and closely fit the surface contour of the artifact, ultimately forming a rigid buffer that closely matches the shape of the artifact.

[0019] S5. Sealing: Once the preset vacuum level is reached inside the bag, immediately seal the exhaust port of the vacuum bag to keep the ETPU particles in a compacted state, thereby firmly locking the artifacts in the rigid buffer body and completing the packaging.

[0020] S6. Packaging: Fill the bottom of the sealed container with ETPU granules, place the vacuum bag obtained in S5 into the sealed container and support it on the ETPU granules, and continue to fill the vacuum bag with ETPU granules around and on top until the ETPU granules completely cover the vacuum bag. Then seal the sealed container for transportation or storage.

[0021] In the above-mentioned method of cushioning and packaging cultural relics, before performing step S1, the cultural relics can be cleaned and dried. If necessary, the cultural relics can be initially wrapped with neutral materials.

[0022] Neutral materials include acid-free soft paper, film, etc.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] Before vacuuming, ETPU granules are fluid and can fill any gaps. After vacuuming, under uniform atmospheric pressure, the granules lock together, forming a rigid whole that perfectly conforms to the shape of the artifact, achieving all-round, stress-free wrapping. ETPU material itself has high resilience and excellent energy absorption characteristics, effectively attenuating and dispersing impact and vibration energy from all directions during transportation, providing top-level physical protection for artifacts. ETPU material is stable, free of volatiles and odors, resistant to aging and hydrolysis, and will not chemically react with artifacts, ensuring safety during long-term contact. After use, opening the vacuum bag allows the ETPU granules to return to a loose state, easily separating from the artifact, and can be reused for the next packaging, significantly reducing long-term costs. This method requires no complex molds or processes, has low skill requirements for packaging personnel, and is suitable for most artifacts of various shapes and materials, from small jade pieces to large ceramics and sculptures. When filling with ETPU granules, appropriate amounts of humectants, inert gases, or anti-mold agents can be added to create a more stable microenvironment for the artifact under vacuum sealing. Attached Figure Description

[0025] Figure 1 This is a cross-sectional view of the vacuum bag when it is not evacuated.

[0026] Figure 2 This is a cross-sectional view of a vacuum bag being placed into a sealed container after being evacuated.

[0027] In the diagram, a) is the cultural relic; 1) is the vacuum bag; 11) is the exhaust port; 2) is the buffer particles; 20) is the buffer body; and 3) is the sealed container. Detailed Implementation

[0028] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0029] like Figure 1 and Figure 2 The artifact cushioning packaging system shown includes a vacuum bag 1 for sealing artifact a, several elastic cushioning particles 2, and a sealed container. The vacuum bag 1 is a high-strength flexible vacuum bag 1, and the cushioning particles 2 are ETPU particles. The cushioning particles 2 are filled between artifact a and the vacuum bag 1. After the vacuum bag 1 is evacuated, the several cushioning particles 2 are tightly arranged and form a cushioning body 20 that completely wraps artifact a.

[0030] In this embodiment, the sealed container 3 is an outer packaging box, such as a cardboard box, and several cushioning particles 2 are also filled between the sealed container 3 and the vacuum bag 1.

[0031] To facilitate the placement of artifact a and cushioning particles 2 into vacuum bag 1, an opening is provided on vacuum bag 1. This opening can be sealed using methods such as adhesive bonding or fastening. Figure 1 As shown, an exhaust port 11 is provided on the vacuum bag 1. After connecting a vacuum pump, a vacuuming action can be performed. Then, the exhaust port 11 can be sealed to prevent outside air from entering.

[0032] ETPU granules are made of thermoplastic polyurethane through physical or chemical foaming processes. They have a microporous honeycomb structure and are lightweight, highly resilient, and compression resistant.

[0033] In this embodiment, the molding process of ETPU is as follows:

[0034] TPU particles are foamed using a pressure-induced supercritical fluid permeation physical microporous foaming device. The TPU particles have a particle size of 3-4 mm, are polyether type, and have a hardness of 85A. The TPU particles are placed in an autoclave, and water with a volume of 2 is injected into the autoclave and the autoclave is closed. Turn on the agitator of the permeation reactor, and set the agitator speed to 60 r / min. Turn on the pressurization equipment to introduce carbon dioxide gas into the reactor, so that the pressure in the reactor reaches 13 MPa and the temperature reaches 105℃. Continue stirring at this temperature and pressure for 60 minutes. Open the quick pressure relief valve to empty the gas in the reactor. The venting time is 3 seconds. The particles have completed foaming and are discharged into the collection tank. Open the discharge valve at the bottom of the collection tank to discharge the material into the water-material separation tank. Turn on the feed screw of the water-material separation tank, and set its speed to 60 r / min. Turn on the feed fan, and the material is conveyed to the spiral conveyor pipe through the fan. Turn on the air supply and suction fans, and set the air supply temperature to 90℃. The multi-layer gyratory screen uses 5mm, 6mm, and 7mm aperture screen plates. After screening, particles with a particle size smaller than 5mm are removed. The remaining particles are sent to the material maturation and qualitative processes respectively.

[0035] Packing a painted pottery horse using the above-mentioned artifact cushioning packaging system includes the following steps:

[0036] S1. Gently wrap the painted pottery horse with acid-free thin cotton paper.

[0037] S2. Prepare vacuum bag 1 and lay a layer of ETPU granules with a particle size of 5mm and a thickness of about 5cm at the bottom of vacuum bag 1.

[0038] S3. Place the wrapped ceramic horse onto the ETPU granules in the vacuum bag 1, and then slowly fill the ceramic horse with ETPU granules around and above it, ensuring that its hooves, tail, ears and other fragile protruding parts are gently covered, until the ETPU granules are 10cm higher than the highest point of the ceramic horse.

[0039] S4. Use a vacuum pump to extract air from the exhaust port 11. It can be observed that the particles inside the vacuum bag 1 are compacted. When the vacuum gauge shows -0.08MPa, seal the exhaust port 11. At this time, the ceramic horse has been tightly fixed in the buffer body 20 made of ETPU particles.

[0040] S5. Prepare a cardboard box slightly larger than artifact a as the outer packaging box. First, lay a layer of ETPU granules about 5cm thick on the bottom of the box, on top of the ETPU granules of the vacuum bag 1 after vacuuming. Then, slowly fill the vacuum bag 1 with ETPU granules around and above it to ensure that the vacuum bag 1 is completely covered. Then it can be packed and transported.

[0041] Packing a batch of unearthed bronze artifact fragments using the above-mentioned artifact cushioning packaging system includes the following steps:

[0042] S1. Separate each bronze artifact fragment with soft paper and place them together in vacuum bag 1. Then slowly fill the area around the bronze artifact fragments with 3mm diameter ETPU particles to ensure that the space between the bronze artifact fragments and between the bronze artifact fragments and vacuum bag 1 is filled with particles.

[0043] S2. Use a vacuum pump to extract air from the exhaust port 11. It can be observed that the particles inside the vacuum bag 1 are compacted. When the vacuum gauge shows -0.08MPa, seal the exhaust port 11. This ensures that the fragments do not collide or rub against each other during transportation.

[0044] After transportation, the vacuum bag 1 is cut open, and the ETPU granules automatically loosen. After removing artifact a, all ETPU granules are collected, and after simple cleaning and air drying, they can be used for packaging the next artifact a without significant performance degradation.

[0045] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. An artifact (a) cushioning packaging system characterized by, The invention relates to a kind of packing method for cultural relics, comprising a vacuum bag (1) for packing cultural relics (a) and a plurality of elastic buffer particles (2) filled between the cultural relics (a) and the vacuum bag (1); after the vacuum bag (1) is evacuated, the buffer particles (2) are closely arranged and form a buffer body (20) completely wrapping the cultural relics (a).

2. An artifact (a) cushioning packaging system according to claim 1, characterized in that, The buffer particles (2) are ETPU particles.

3. An artifact (a) cushioning packaging system according to claim 2, characterized in that, The ETPU particles are in a spherical or crushed shape, with a particle size of 2-10 mm and a density of 0.1-0.3 g / cm³.

4. The artifact (a) cushion packaging system according to claim 1 or 2 or 3, characterized in that, The invention also includes a closed container (3) for placing in the vacuum bag (1), and the closed container (3) and the vacuum bag (1) are also filled with a plurality of buffer particles (2).

5. An antiques (a) cushion packaging method characterized by, The method comprises the following steps: S1, ETPU particle filling: fill ETPU particles into the bottom of the vacuum bag (1); S2, placing cultural relics (a): place the cultural relics (a) in the vacuum bag (1) and support them on the ETPU particles at the bottom of the vacuum bag (1); S3, ETPU particle filling: continuously fill ETPU particles around and on top of the cultural relics (a) until the cultural relics (a) are completely covered and a certain height above the highest point; S4, vacuuming and shaping: vacuum the inside of the vacuum bag (1), and under the action of external atmospheric pressure, the vacuum bag (1) shrinks and uniformly presses the ETPU particles inside, prompting the particles to flow, rearrange and closely fit the surface contour of the cultural relics (a) under pressure, and finally form a rigid buffer body (20) that closely matches the shape of the cultural relics (a); S5, sealing: when the vacuum bag (1) reaches the preset vacuum degree, immediately seal the exhaust port (11) of the vacuum bag (1) to maintain the compacted state of the ETPU particles, thereby firmly locking the cultural relics (a) in the rigid buffer body (20) and completing the packaging; S6, packaging: fill ETPU particles into the bottom of the closed container (3), place the vacuum bag (1) obtained from S5 in the closed container (3) and support it on the ETPU particles, continuously fill ETPU particles around and on top of the vacuum bag (1) until the ETPU particles completely wrap the vacuum bag (1), and then close the closed container (3) for transportation or storage.

6. The method of packaging artifacts (a) according to claim 5, characterized in that, Before performing S1, the cultural relics (a) can be cleaned and dried, and if necessary, they can be initially wrapped with neutral materials.

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