The structure and type of tile paper interpretation and buy experience share

The name of corrugated paper originates from the fact that its structure resembles that of the tiles used in Chinese architecture, and the paper layer is punctilious. It is called corrugated paper and later translated into English by Carton Board. But the most correct thing is to use "Corrugated Board," or pit paper.

The name of corrugated paper originates from the fact that its structure resembles that of the tiles used in Chinese architecture, and the paper layer is punctilious. It is called corrugated paper and later translated into English by Carton Board. But the most correct thing is to use "Corrugated Board," or pit paper.

Structure of pit paper

The basic structure of the pit paper is a smooth kraft paper and wavy paper (collectively referred to as the paper core). The former kraft paper content is mostly or even entirely wood pulp, and is about 200 to 250 gsm thick. The breaking strength and bearing force are extremely high. Strong, but in the last two or three decades, due to environmental protection and cost factors, the wood pulp content in kraft paper is reduced and mixed with waste paper, and the thickness is also much thinner than before, usually 120 to 160 gsm, and there is also a 200 gsm thickness in use. . As for the paper core, it is entirely recycled paper. Its thickness has also been changed from the previous 130 to 160 gsm to 100 to 140 gsm.

Kind of pit paper

The most important use of pit paper is the outer packaging. Due to the advanced printing technology, pit paper also has a variety of styles. Today, it is not just the role of packaging, but also packaging or paper products come in handy. It seems to be the same as the first, but they all have different pit patterns. The pit pattern was only A-shaped in the early stage, but its supporting force was high, but the materials used were large. Therefore, B and C shapes were developed under different requirements. The B-wave ripple amplitude was narrower, the wave ripple was shorter, and the bearing capacity was smaller. Less material used. The C-shaped pit pattern is similar to the A-shaped width, but it is shorter than the B-shape. Therefore, the C-shaped pit paper is thinner than the A and B pit paper. E-pits began to be popular more than a decade ago. F-holes existed a few years ago. In recent years, there have been more G-holes (the existing A, B, C, E, F, and G of pits, but no D pits). The box is not designed to protect the product. It also serves as a decoration, propaganda, and other roles. The difference between the pits of E, F, and G is that the pit pattern is finer, and there is protection but it is rough. For some packages, the practice of re-meshing the gray card on the pit paper is to reduce the cost. For example, a thin pit pattern combined with a thin powdered gray card is also less prone to pitting, and the cost can be reduced. Now more common in cosmetics, mobile phones and other high-level consumer goods packaging.

As to what is a single pit, double pit and three pits, we must start with the basics:

The simplest is to see the pit, that is, a piece of kraft paper and a piece of paper heart together, after the completion of the paper is kraft paper, the back of the paper clearly see the pit pattern. It is suitable for inner packaging and is used to separate single items or accessories. Although the form is rough, it has low cost and high efficiency. For example, it is used for packaging light bulbs, glassware and the like.

Single Wall is mostly 120gsm kraft paper with inner core of about 105gsm in the middle, and the paper core is commonly used with B pit, suitable for general packing boxes.

DoubleWall, as its name implies, has two layers of pit paper added together, namely, the outermost two layers and the middle is kraft paper. The second and fourth layers separated by sandwich cake are paper cores, and the two layers of paper cores. It usually uses different pit patterns, one layer of multi-purpose C pits, and the other layer of B pits. This also has benefits for cost and utility. Many packages of goods are also packaged in double-deck paper. As mentioned above, the thickness of kraft paper and paper cores are usually sufficient to meet the general conditions of transportation in modern society, such as by air or by entering the container as a waterway. Transportation etc.

As for Triple Wall, it is like a double pit. It is a combination of three pit papers, namely, the outermost two layers and the third and fifth layers are kraft paper, and the second, fourth and sixth layers are paper cores. Kraft paper is mostly 120gsm, with a 105gsm paper core. Suitable for extremely valuable, fragile or easily bendable items. However, the three-hole box is relatively bulky, expensive, and has low flexibility. Some people use double-pit boxes. When placing goods, a double-decked paper is added to the upper and lower sides of the box to strengthen the jacking force. Some people use double double pit boxes to wrap precious, fragile items instead of three pit boxes.

Choose pit box experience

When considering whether to use a single pit, double pit or triple pit box, safety is of paramount importance, followed by cost.

The structure of pit paper must withstand requirements such as Burst Strength, Supporting Strength, Ring Crush, and Edge Wise Supporting Strength. Foreign companies are often clear about this requirement. Requirements guidelines. The company that makes the pit box must test the pit paper first. If the paper quality meets the requirements, the cutting and box structure must be tested. For example, the straight pit pattern is usually used, and the size of each plane on the carton is not too large. Great. In general, the maximum weight of pit box load is 25 to 30 kgs, and each plane area of ​​the cartons should also be kept within a certain size. In addition, we must also pay attention to whether the bearing capacity of the pit box can still cope with the fatigue, shock, lifting, pressure, etc. in the wet environment. Because of the above reasons, paper pit boxes are not suitable for large batches of pre-made and stored. In addition, measuring the dimensions of the guideline to customise the pit box, in addition to being cost-effective and easy to pack, can also prevent the article from shaking in the box. If the goods are constantly shaken during the delivery, it will generate unnecessary bearing force. , Top force, etc. will increase the load on the pit box, which is extremely dangerous. In foreign countries, paper physics (Paper Physcis), paper structure (Paper Engineering) and other courses are very common, but Hong Kong does not have such a special course.

Controlling the cost of the pit box, freight is also an important part. The pit box has the weight and area considerations in the transportation, while there is a strong protection force, but also to balance the burden of shipping. Therefore, in some cases, it is necessary to match the capacity (volume) of the container, and some have to match the restrictions of the airline company. Now, due to the variety of pit papers, changes in printing technology, cooperation in processing, and improvements in transportation, the internal and external packaging can be combined into one. Some products can be put on the shelves of supermarkets directly after being packaged at one time, so this is both internal packaging and external packaging. In addition to being protected and facilitated, some products need to be advertised and have eye-catching effects, such as beer. 24 into a box, printed on the carton exquisite propaganda pattern, it can be put directly on the supermarket shelves, but also in bars and other nightclubs for the promotion of the use of shops. This practice is now widespread and popular because it not only reduces packaging costs, but also reduces the cost of manpower, and can also meet the requirements of environmental protection.