Foam box

A foam box and foaming ratio technology, applied in the field of foam boxes, can solve problems such as poor impact resistance, raw material limitations, and poor anti-collision performance, so as to improve stiffness and strength, increase recycling times, and enhance impact resistance. Effect

Inactive Publication Date: 2020-01-03
NANJING CEC PANDA LCD TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the different characteristics of various materials, many problems are often encountered. For example, EPS (Expanded Polystyrene, referred to as EPS) is the most common, cheap, and relatively good in stiffness, but poor in impact resistance, brittle, and easily damaged. Fracture, poor anti-collision performance, poor recovery rate, easy to drop chips during use, will pollute the panel, and customers with high requirements are unwilling to use it; on the contrary, EPP (Expanded polypropylene, a high-crystalline polymer with excellent performance / Gas composite material) has good cushioning properties, impact resistance, not easy to drop chips, and high recovery rate, but the material cost is too high, and only a small amount of turnover packaging materials are currently in use
[0004] In order to solve the above problems, the common method in the industry is to increase the density of the foam box or use new materials, such as EPO (Exposed Polymeric-emulsion Waterproof Coating, polymer emulsion), which combines the physical advantages of EPS and EPS, but the raw materials are limited. , the price is high
[0005] Regardless of the method, the problems encountered above cannot be completely solved, and the cost remains high

Method used

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Examples

Experimental program
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Effect test

no. 1 example

[0032] The first embodiment: as Figure 4 As shown, the thickness of the outer layer 110 is 15%-25% of the total thickness, the material is EPS, and the expansion ratio is 12-18 times (preferably 15 times). The thickness of the middle layer 120 is 55%-65% of the total thickness, the material is EPS, and the expansion ratio is 35-45 times (preferably 40 times). The thickness of the inner layer 130 is 15%-25% of the total thickness, the material is EPS, and the expansion ratio is 12-18 times (preferably 15 times).

[0033] The inner layer 130 and the outer layer 110 have a low expansion ratio (high density), less chance of chipping, and good strength; the middle layer 120 has a high expansion ratio (low density), and the packaging box 100 is light in weight and low in cost.

no. 2 example

[0034] The second embodiment: as Figure 5 As shown, the thickness of the inner layer 110 is 15%-25% of the total thickness, the material is EPP, and the expansion ratio is 25-35 times (preferably 30 times); the thickness of the middle layer 120 is 55%-65% of the total thickness. %, the material is EPS, and the expansion rate is 35-45 times (preferably 40 times); the thickness of the outer layer 130 is 15%-25% of the total thickness, and the material is EPO, and the expansion rate is 20-30 times (preferably 40 times); is 25 times).

[0035] The material of the inner layer 130 and the outer layer 110 is not easy to chip, and has good impact resistance; the material of the middle layer 120 is cheap, which can reduce the overall cost; the material of the inner layer 130 and the outer layer 110 has good cushioning performance, and the rigidity of the middle layer 120 Better, the overall performance is better than a single material.

no. 3 example

[0036] The third embodiment: as Figure 6 As shown, the thickness of the inner layer 110 is 15%-25% of the total thickness, the material is EPP, and the expansion ratio is 25-35 times (preferably 30 times); the thickness of the middle layer 120 is 40%-50% of the total thickness. %, the material is EPS, and the expansion rate is 35-45 times (preferably 40 times); the thickness of the outer layer 130 is 30%-40% of the total thickness, the material is EPO, and the expansion rate is 12-18 times (preferably 40 times); is 15 times).

[0037] The material of the inner layer 110 and the outer layer 130 is not easy to chip, and has good impact resistance; the material of the middle layer 120 is cheap, which can reduce the overall cost; the material of the inner layer 110 and the outer layer 130 has better cushioning properties, and the middle layer has better rigidity , the overall performance is better than that of a single material.

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Abstract

The invention provides a foam box which sequentially comprises an outer layer, a middle layer and an inner layer. The material of the outer layer is EPP or EPO; the material of the middle layer is EPS; and the material of the inner layer is EPS. The foam box solves the problem that the inner layer does not drop chips, so that the cleanliness of glass products is ensured; the impact resistance of the outer layer of the reinforced foam box is strong, the outer layer of the reinforced foam box is not prone to being damaged in the packaging and transportation processes, and the recovery times areincreased; the stiffness and strength of the foam box are improved, and the foam box is not prone to being bent in transportation; and the packaging cost is reduced.

Description

technical field [0001] The invention relates to the technical field of panel packaging, in particular to a foam box. Background technique [0002] At present, there are many ways to package glass panels, and the more common ones are foam boxes made of foam molding and trays formed by blister molding. Among them, the foam box is more and more used for panel packaging because it does not need an outer box, has a good overall carrying capacity, and is easy to recycle. [0003] Due to the different characteristics of various materials, many problems are often encountered. For example, EPS (Expanded Polystyrene, referred to as EPS) is the most common, cheap, and relatively good in stiffness, but poor in impact resistance, brittle, and easily damaged. Fracture, poor anti-collision performance, poor recovery rate, easy to drop chips during use, will pollute the panel, and customers with high requirements are unwilling to use it; on the contrary, EPP (Expanded polypropylene, a high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D6/14B65D85/48B65D81/02
CPCB65D11/16B65D81/02B65D85/48Y02W30/80
Inventor 刘刚
Owner NANJING CEC PANDA LCD TECH
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