Pearl wool packing box lining buffer structure for fruit packing

Abstract

The utility model discloses a pearl wool packing box lining buffer structure for fruit packing, which comprises a pearl wool lining main body, the density of which is 20-30kg / m 3 , contains 3-5% degradable auxiliary agent and 0.5-1% antistatic agent; a fruit containing cavity formed on the pearl wool lining main body, the depth of the fruit containing cavity is 40-60% of the diameter of the adapted fruit, and the edge transition angle is 15-30°; buffer support ribs uniformly distributed around the fruit containing cavity, the height of the buffer support ribs is 5-15mm, the width is 3-8mm, and the interval is 20-40mm; and air-permeable micropores arranged on the surface of the pearl wool lining main body, the diameter of the air-permeable micropores is 0.5-1.5mm, and the density is 20-50 / cm 2 . The utility model relates to the technical field of packaging materials. The pearl wool packing box lining buffer structure for fruit packing has significantly improved buffer protection performance, greatly improved shape adaptability, obviously enhanced preservation effect, excellent environmental protection performance and improved production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of packaging materials technology, specifically to a cushioning structure for the inner lining of pearl cotton packaging boxes used for fruit packaging. Background Technology

[0002] With the rapid development of the fruit industry, the protection of fruit during transportation has become increasingly prominent. In the field of packaging materials technology, effectively reducing damage to fruit during transportation has always been a key concern for the industry. As a fragile commodity, fruit is easily subjected to external forces such as squeezing and collisions during long-distance transportation, leading to quality degradation and economic losses.

[0003] Currently, the most common fruit packaging lining materials on the market include cardboard and foam plastic. While cardboard is relatively inexpensive, its cushioning performance is limited, making it unable to effectively absorb and disperse the impact during transportation. Foam plastic, although offering some cushioning, has a fixed shape and cannot conform well to the shapes of different types of fruit, resulting in unsatisfactory protection. Furthermore, these traditional materials also suffer from poor environmental friendliness and insufficient breathability. The main reason for this is that the physical properties of these materials prevent them from simultaneously meeting the requirements of softness, elasticity, and shape conformation, thus failing to provide comprehensive protection for the fruit during transportation.

[0004] To address the technical problems of insufficient cushioning performance and poor shape adaptability of existing fruit packaging lining materials, this utility model proposes a pearl cotton packaging box lining cushioning structure for fruit packaging. The aim is to effectively solve the protection problems during fruit transportation through innovation in material properties and structural design. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a cushioning structure for the inner lining of fruit packaging boxes made of pearl cotton, which solves the technical problems of insufficient cushioning performance and poor shape adaptability of existing fruit packaging lining materials.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cushioning structure for the inner lining of a pearl cotton packaging box for fruit packaging, comprising:

[0007] The main body of the pearl cotton lining has a density of 20-30 kg / m³. 3 It contains 3-5% biodegradable additives and 0.5-1% antistatic agent;

[0008] A fruit-accommodating cavity is formed on the pearl cotton lining body, the depth of which is 40-60% of the diameter of the adapted fruit, and the edge transition angle is 15-30°;

[0009] The buffer support ribs are evenly distributed around the fruit receiving cavity. The height of the buffer support ribs is 5-15mm, the width is 3-8mm, and the spacing is 20-40mm.

[0010] And breathable micropores are provided on the surface of the pearl cotton lining body, the diameter of the breathable micropores being 0.5-1.5mm and the density being 20-50 micropores / cm². 2 .

[0011] Preferably, the tensile strength of the pearl cotton lining body is ≥1.8MPa, the tear strength is ≥8N / cm, the compression set is ≤15%, and the resilience is ≥85%.

[0012] Preferably, the biodegradable additive is a starch-based additive.

[0013] Preferably, the shape of the fruit receiving cavity is designed according to the 3D scan data of the target fruit, increasing the contact area with the fruit's shape by 30-50%.

[0014] Preferably, the cross-sectional shape of the buffer support rib is trapezoidal or semi-circular.

[0015] Preferably, the breathable micropores are evenly distributed in the area outside the fruit receiving cavity.

[0016] Preferably, it also includes a fixing structure disposed at the edge of the pearl cotton lining body, wherein the fixing structure is a flange with a width of 2-3mm.

[0017] Beneficial effects

[0018] This utility model provides a cushioning structure for the inner lining of fruit packaging boxes made of pearl cotton. It has the following beneficial effects:

[0019] 1. Significantly improved cushioning performance: Thanks to the use of pearl cotton material with specific density and mechanical properties, combined with a precisely designed cushioning support rib system, it can effectively absorb and disperse impact energy during transportation, reducing fruit damage rate to less than 1 / 5 of that of traditional packaging.

[0020] 2. Significantly improved shape adaptability: The fruit-containing cavity designed based on 3D scanning data achieves a precise match with the shape of the fruit, increasing the contact area by 30-50%, significantly reducing local pressure, and avoiding damage to the skin.

[0021] 3. Significantly enhanced preservation effect: Through a precisely controlled microporous system, the ideal O2 / CO2 ratio inside the packaging can be maintained, extending the shelf life of fruits by 3-5 days and reducing moisture loss and respiration consumption.

[0022] 4. Excellent environmental performance: Pearl cotton material with added biodegradable additives can achieve rapid degradation in the natural environment, with a degradation rate of over 65% in 180 days, which is far higher than that of traditional foam plastic materials.

[0023] 5. Improved production efficiency: The optimized manufacturing process enables high-precision and high-efficiency production, with long mold life, good product consistency, and suitability for large-scale industrial production. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a cross-sectional view of the main body of the pearl cotton lining of this utility model.

[0026] In the diagram: 1. Pearl cotton lining body; 2. Fruit receiving cavity; 3. Buffer support ribs; 4. Breathable micropores; 5. Fixing structure. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-2 This utility model provides a technical solution: a cushioning structure for the inner lining of a pearl cotton packaging box for fruit packaging, comprising:

[0029] The main body of the pearl cotton lining 1 has a density of 20-30 kg / m³. 3 It contains 3-5% biodegradable additives and 0.5-1% antistatic agent; the main body 1 of the pearl cotton lining has a density of 25 kg / m³. 3 Made of pearl cotton material, its formulation contains 4% starch-based biodegradable additives and 0.8% antistatic agent. Tested physical properties of the material are: tensile strength 1.9 MPa, tear strength 8.5 N / cm, compression set (22h, 50%) 14%, and resilience 87%.

[0030] The thickness of the pearl cotton lining body 1 is 25mm, and it is manufactured using a hot-press molding process. This process includes the following steps: first, the pearl cotton sheet is fed into a mold preheated to 130℃, then pressed under 0.8MPa pressure for 45 seconds, and finally cooled to 35℃ for demolding. The surface roughness Ra of the mold is controlled at 0.6μm to ensure a smooth molding surface.

[0031] A fruit-receiving cavity 2 is formed on the pearl cotton inner lining body 1. The depth of the fruit-receiving cavity 2 is 40-60% of the diameter of the adapted fruit, and the edge transition angle is 15-30°. The diameter of the fruit-receiving cavity 2 is 75mm, the depth is 35mm, which is approximately 47% of the diameter of an apple, and the edge transition angle is 20°. The shape of the fruit-receiving cavity 2 is designed based on the 3D scan data of the fruit, increasing the contact area with the fruit's shape by approximately 40%.

[0032] Buffer support ribs 3 are evenly distributed around the fruit receiving cavity 2. The height of the buffer support ribs 3 is 5-15mm, the width is 3-8mm, and the spacing is 20-40mm.

[0033] And breathable micropores 4 are provided on the surface of the pearl cotton lining body 1, the diameter of the breathable micropores 4 is 0.5-1.5mm, and the density is 20-50 per cm. 2 The diameter of the breathable micropores 4 is 1 mm, and the density is 30 pores / cm³. 2 The micropores are evenly distributed in the area outside the fruit-containing cavity 2. The micropores are processed by laser drilling, and the diameter tolerance is controlled within ±0.08mm.

[0034] The breathable micropore design allows the CO2 concentration inside the packaging to be maintained at 3-5% and the O2 concentration at 16-18%, which reduces the respiration rate of fruit by about 20% compared to traditionally packaged fruit and extends the shelf life by 3-5 days.

[0035] The tensile strength of the pearl cotton inner lining body 1 is ≥1.8MPa, the tear strength is ≥8N / cm, the compression set is ≤15%, and the resilience is ≥85%.

[0036] The biodegradable additive is a starch-based additive.

[0037] The shape of the fruit receiving cavity 2 is designed according to the 3D scan data of the target fruit, increasing the contact area with the fruit's shape by 30-50%.

[0038] The cross-sectional shape of the buffer support rib 3 is trapezoidal or semi-circular.

[0039] The breathable micropores 4 are evenly distributed in the area outside the fruit receiving cavity 2.

[0040] It also includes a fixing structure 5 disposed on the edge of the pearl cotton inner lining body 1, the fixing structure 5 being a flange with a width of 2-3mm. The fitting gap between the fixing structure 5 and the inner wall of the packaging box is 0.3-0.5mm. This design ensures both installation stability and ease of manual operation, with the installation force controlled within the range of 5-8N.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cushioning structure for the inner lining of a fruit packaging box made of pearl cotton, characterized in that, include: A pearl wool lining body (1) has a density of 20-30 kg / m 3 , comprising 3-5% degradable aids and 0.5-1% antistatic agents; Fruit receiving cavity (2) formed on the pearl cotton inner lining body (1), the depth of the fruit receiving cavity (2) is 40-60% of the diameter of the adapted fruit, and the edge transition angle is 15-30°; The buffer support ribs (3) are evenly distributed around the fruit receiving cavity (2). The height of the buffer support ribs (3) is 5-15mm, the width is 3-8mm, and the spacing is 20-40mm. And the breathable microporous (4) set on the surface of the pearl wool lining body (1), the diameter of the breathable microporous (4) is 0.5-1.5mm, and the density is 20-50 / cm 2 .

2. The pearl cotton packaging box lining cushioning structure for fruit packaging according to claim 1, characterized in that, The tensile strength of the pearl cotton inner lining body (1) is ≥1.8MPa, the tear strength is ≥8N / cm, the compression set is ≤15%, and the resilience is ≥85%.

3. The pearl cotton packaging box lining cushioning structure for fruit packaging according to claim 1, characterized in that, The biodegradable additive is a starch-based additive.

4. The pearl cotton packaging box lining cushioning structure for fruit packaging according to claim 1, characterized in that, The shape of the fruit receiving cavity (2) is designed according to the 3D scanning data of the target fruit, and the contact area with the fruit shape is increased by 30-50%.

5. The pearl cotton packaging box lining cushioning structure for fruit packaging according to claim 1, characterized in that, The cross-sectional shape of the buffer support rib (3) is trapezoidal or semi-circular.

6. The pearl cotton packaging box lining cushioning structure for fruit packaging according to claim 1, characterized in that, The breathable micropores (4) are evenly distributed in the area outside the fruit receiving cavity (2).

7. The pearl cotton packaging box lining cushioning structure for fruit packaging according to claim 1, characterized in that, It also includes a fixing structure (5) set on the edge of the pearl cotton lining body (1), the fixing structure (5) being a flange with a width of 2-3mm.

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