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Comparison of cushioning properties between honeycomb paper and corrugated paper

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how much do you know about the form of transportation packaging

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2005-11-4 8:49:23

for fragile products such as glass products, ceramic products, handicrafts, bottled food and beverage, as well as precision electronic, electrical and communication products, it is necessary to minimize the damage to the products caused by transportation and circulation, Transport packaging or buffer packaging plays a key role here. The main forms of existing transportation packaging are:

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outer packaging

outer packaging is an effective method to protect fragile goods from damage. It is generally required that the outer packaging of fragile products should have certain compressive strength and puncture resistance, which can protect the fragile products from damage under normal transportation, storage and stacking conditions

the most typical and commonly used outer packaging of fragile products is corrugated box. Some large and heavy fragile products are packed in honeycomb cardboard boxes, and some products with lighter or high compressive strength, such as empty glass cans, are packed in wrapped film instead of corrugated boxes when transported on pallets

no matter what kind of fragile outer package, the words “fragile” and corresponding patterns shall be marked on the upper left corner of the four sides

corrugated box

corrugated box is the most used transport packaging container at present. The commonly used corrugated box for the outer packaging of fragile products is made of three or five layers of corrugated board

there are generally four types of corrugated boards: A, B, C and E. corrugated boards of a, B and C can be used to make cartons for the outer packaging of fragile products. The difference is that type A is higher and sparse, with low compressive strength, type B is lower and dense, with high compressive strength, and type C is between the two. Choosing different corrugated types or different layers of cardboard to make cartons is mainly based on the importance of the contents and the requirements for compressive strength

in the past, due to the backward transportation conditions in China, barbaric loading and unloading occurred from time to time. The domestic demand for 5-layer corrugated boxes was large, accounting for about 70%. However, in recent years, with the improvement of transportation conditions in China, the application proportion of three-layer corrugated boxes has increased year by year. And with the change of sales mode, the transportation packaging of many fragile products is close to the sales packaging. The design of corrugated boxes is becoming more and more complex, and the quality of printing and decoration is becoming higher and higher. Many have been grandly mounted on the supermarket shelves

honeycomb cardboard box

honeycomb cardboard box is a box container made of honeycomb cardboard. Honeycomb paperboard has light weight, high compression, bending and shear strength, and has good cushioning and vibration isolation performance. There are three kinds of packaging boxes with honeycomb paperboard as the main material. One is the composite packing box. The outer layer of the box is made of fiberboard or plywood with strong puncture ability, the middle layer is made of honeycomb paper core, and the inner wall is bonded with straw paperboard; The second is the full honeycomb cardboard packing box. That is, honeycomb paper is used as the sandwich, and the inside and outside are bonded with carton board; The third is the lined packing box, which takes the corrugated box as the box, and the upper and lower walls of the box are padded with honeycomb paperboard, which has strong shock resistance, compression resistance, heat preservation and puncture resistance

compared with traditional corrugated boxes, honeycomb cardboard boxes have better mechanical properties. For example, experiments such as destructive drop, heavy stacking and real loading rolling show that the damage rate of fragile articles in honeycomb cardboard boxes is 50% ~ 97% lower than that in corrugated boxes; Put 600kg weight on the empty box for pressure test for three months without deformation, and there is no need for polystyrene liner; The weight ratio with corrugated boxes of the same specification is 2:5, which can save 60% of paperboard. The popularization and application of this kind of carton will play a positive role in reducing the damage rate of goods in the circulation process and improving the quality of packaged products. Especially for jade carvings and handicrafts with high value, honeycomb carton is the best choice

however, due to the complex manufacturing process of honeycomb paperboard, especially the automatic box making can not be realized at present, so it is limited in application? B style=color:black;- color:#ff66ff> It’s not easy to get tired of eating, but it’s hard to get tired of it? B style=color:black;- color:#ff66ff> On larger fragile packages

winding film packaging

with the gradual palletization of packaging and transportation, the use of plastic winding and stretching film as transportation packaging is becoming more and more popular. Stacking the sales packaging of fragile products on the tray and forming a whole with winding film can reduce the packaging, save corrugated boxes and reduce the packaging cost

winding stretch retraction film is produced by CO extrusion film blowing method or tape casting method with linear low density polyethylene as the main raw material. It has great tensile elongation and retraction performance, and the elongation can be as high as 500%. Tray type winding packaging is to wrap the products with the help of the retraction force after the stretching of the winding film to form a compact and space free unit, so that the products are closely wrapped with the tray, which can effectively prevent the products from dislocation and movement during transportation

in recent years, winding film has developed rapidly. It is very suitable for the pallet packaging of bulk goods. The “centralized loading and unloading” method of the combination of pallet and forklift not only reduces the transportation cost and improves the logistics efficiency, but also because the film has good transparency, it makes the packaging object beautiful and easy to identify the inner package and reduce the distribution error

the disadvantage of winding film is that its compression resistance and puncture resistance are weak, and its use is limited. Especially in the packaging of fragile products, it is usually only applicable to those commodities with sales packaging, less turnover times, lighter goods or high compression strength

inner packaging

the main function of inner packaging of fragile products is to provide fixation and cushioning of contents. Qualified inner packaging can protect fragile products from collision and vibration during transportation, and can return to the original shape to provide further cushioning. There are a variety of internal packaging materials and methods to choose from

liner

liner is the most popular form of internal packaging at present. Corrugated cardboard is usually used to cross each other to form a mesh structure, which is matched with the outer packaging carton in size. According to the shape of the articles, cut the corrugated paper lining board, and then clamp the articles in it. The whole process of making, cutting and packing the lining plate can be completed through mechanized operation, which is very suitable for mass product packaging

using corrugated liner as internal packaging can provide good commodity fixation performance, avoid collision between fragile products and reduce the damage rate. Moreover, because the production material is corrugated paper, which is consistent with the corrugated box material, it is conducive to unified rec
ycling, meets the needs of environmental protection, and the cost is also very low

the articles in contact with the bottom of the box are more likely to be damaged due to the high pressure. Usually, a layer of corrugated paper partition is added at the bottom of the box to enhance the cushioning performance. At present, there are also partitions made of plastic on the market. It uses high density polyethylene (HDPE) or polypropylene (PP) extrusion or extrusion molding, with low cost, bending, impact resistance, no pollution, anti-aging, corrosion resistance, moisture and waterproof, and other advantages, can solve beer bottle, ceramic and so on in the process of mass transportation may encounter the problem of interlayer packaging. Compared with corrugated board, plastic partition can better adapt to the trend of unloading and stacking mechanization and storage management shelving, and will be more and more widely used

foam and its substitute

, as a traditional cushioning packaging material, has excellent cushioning and vibration absorption properties. It has the advantages of light weight, good protection performance and wide adaptability. It is widely used in the packaging of fragile goods. In particular, foamed plastics can be prefabricated into relevant buffer modules according to the product shape, which is very convenient for application

polystyrene foam was once the most important cushioning material. However, traditional foam polystyrene uses the freon as the foaming agent that destroys the ozone layer of the atmosphere, and the reasons for the large volume of waste foam and the difficulty of recovery are gradually replaced by other environmental protection cushioning materials. Br>
at present, foamed PP, honeycomb paperboard and pulp molding products are mainly used to replace polystyrene foamed plastics. Foamed PP does not use freon and has many buffer properties similar to foamed polystyrene. It belongs to soft foamed material and can form complex structure through bonding. It is a new type of buffer material with good application prospect

honeycomb paperboard has the advantages of large bearing capacity, good cushioning, not easy to deform, high strength, environmental protection and low cost. It can be prefabricated into various shapes instead of foamed plastic, and is suitable for the packaging of fragile products used in large quantities, especially the packaging of fragile products with large volume or heavy weight

pulp molded products are also packaging materials that can partially replace expanded polystyrene. It is mainly made of paper or other natural plant fibers through pulping, molding and drying. According to the appearance and weight of fragile products, a specific geometric cavity structure can be designed to meet the different requirements of products. This product has good adsorption, degradable waste, and can be stacked for storage, which greatly reduces the transportation and storage space. However, due to its poor resilience and weak shockproof performance, it is not suitable for the packaging of fragile products with large volume or heavy weight

air cushion film

air cushion film is also called bubble film. A special method is adopted to seal the air between two layers of plastic films, so that bubbles can be formed continuously and evenly between the films. Bubbles have circular, semicircular, bell shaped and other shapes. Bubble film can provide good protection for light goods. As a soft buffer material, bubble film can be cut into various specifications and can package products of almost any shape or size. When using air cushion film, multiple layers shall be used to ensure the complete protection of the product (including corners and edges)

the disadvantage of air cushion film is that it is easy to expand and contract under the influence of surrounding air temperature. The expansion will lead to the damage of the outer packing box and the packaged goods, and the shrinkage will lead to the movement of the contents of the package, which will destabilize the package and eventually cause the damage of the product. And its anti puncture strength is poor, which is not suitable for packaging fragile products with acute angles

field foamed

foam, mainly using polyurethane foam products, expand beside the content and form a protection model, especially for small batch, irregular goods packaging. Br>
the general operation procedure is as follows: first, inject two-component foaming material into a plastic bag at the bottom of the carton, then put the packaged product on the foaming material, then take a plastic bag, inject an appropriate amount of foaming material to cover the fragile products, and soon the foaming material will fill the whole carton to form a perfect protection for the fragile products

the biggest feature of on-site foaming is that it can be formed on site without any mold. It is especially suitable for individual and irregular products or the packaging of valuable and fragile products. It can be widely used in special occasions such as postal and express delivery

filler

filling various soft materials in packaging containers as buffer packaging has been widely used. Materials include waste paper and plant fiber

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