Stationery box, a box that students use to store pens, pencils, rulers, erasers and other stationery. There are many types of textures, generally wood, iron, plastic and other products, with different shapes, mostly cuboid. Iron stationery boxes generally do not have too fancy patterns on them. Compared with wooden and plastic stationery boxes, iron ones are not easy to be deformed or damaged. They are very practical and suitable for primary school students. The plastic stationery box has bright colors and rich patterns, but it is not as resistant to falling and deformation as the iron stationery box. It is very popular with elementary and middle school students in the mass market, and even college students sometimes use it. Wooden stationery boxes are very rare, with all kinds of graphics engraved on them, but primary and secondary school students often do not use it, because its color is too monotonous, so wooden stationery boxes gradually become rare. In 2000, there was also a stationery box made of cloth, the real name was "pen bag", which was the "new favorite of the stationery box" for primary and middle school students. It is easy to carry and practical, and it is very suitable for our children to use. There is also an automatic stationery box, which is characterized in that: it is composed of an outer box body and an inner box body, and the inner box body is movably inserted into the empty surface of one long side of the outer box body, and the upper edge of the other long side of the outer box body connects the box with a hinge. Lid, a box lid is a box lid connected by two narrow lid hinges. There are spring sheets on the outside of the short side of the outer box, the spring sheets pass through the outer box cover to the short side of the inner box, and there are a plurality of grooves on the short side of the inner box which are matched with the ends of the spring sheets. The effect of the invention is that the automatic pencil case and the body can be enlarged or reduced in size, and can be adjusted according to the amount of stationery put in. Convenient and practical. Cosmetics are almost used by everyone nowadays, and cosmetic boxes are a good tool for perfectly storing messy cosmetics. 1. The most basic protection function: After using the cosmetic box, it can reduce the collision, pressure, shock and other problems that the cosmetic is subjected to during transportation and handling. As long as the material of the cosmetic box is highly adaptable, it can still be used. To moisture-proof, waterproof and other functions, this is the most basic protection; 2. Production is more economical: After the rationalization of the production process of cosmetic boxes, the processing technology becomes no longer cumbersome, and the utilization rate of paper materials will be improved. As long as the cutting is reasonable, materials will not be wasted, thereby reducing costs; 3. Beautiful appearance and function: the use of cosmetic boxes shows the performance of the goods, and can also play an artistic effect, improve the grade of cosmetics, and thus have a stronger appeal to customers; 4. Convenience function: Because the packaging structure of the cosmetic box is simple, a reasonably designed cosmetic box is not only convenient for folding, opening and closing, and storage, but also makes the cosmetic box more durable, and is also conducive to centralized display in transportation. In the current era we live in, food boxes have brought great convenience to families, not only in use, but also in safety. Food is easily in contact with oxygen and bacteria in the air, which in turn affects the taste and quality of food. Therefore, whether it is storing or selling food, a sealed food box is very important. 1. Transportation protection: In the process of food transportation, physical phenomena such as collision, extrusion, and vibration that are not conducive to food transportation cannot be avoided. The food box can protect the food well and avoid damage to the food caused by adverse factors. Food is well protected during transport; 2. Shell protection: The food box shell can separate the food from oxygen, water vapor, stains, etc., and anti-leakage is also a necessary factor in packaging design. Some packages include desiccants or deoxidizers to extend shelf life. Vacuum packaging or evacuating air from packaging bags is also the main method of food packaging, keeping food clean and fresh during the shelf life; 3. Save volume and facilitate classification: It is a good way to save volume by stuffing small objects of the same type into one package. Powders and granular objects need to be encapsulated. Clear PP box is a plastic container made of food-grade PP raw materials for the convenience of food preservation, packaging and heating. It is a household plastic product that is ubiquitous in our daily life and an indispensable plastic container in household food storage. Different shapes store different things and are more convenient to use. In addition to the common squares, rectangles, and circles, there are also suits designed for picnics, which make life easier and more convenient. Square PP plastic fresh-keeping box: excellent sealing performance, suitable for storing food, can prevent peculiar smell in the refrigerator, suitable for storing various seasonings, leftovers, leftover cans, fruits, vegetables. Easy to use in refrigerators, freezers, microwave ovens, and other uses; Rectangular PP plastic crisper: suitable for storing bacon and meat food. Due to the water catch plate, it is easy to store food with moisture. The large-capacity rectangular PP plastic crisper is suitable for preserving fruits, vegetables and seafood; Round PP plastic fresh-keeping box: suitable for long-term storage of various condiments, canned fruits, grains, nuts, tea and other foods, easy to use in refrigerators, freezers, and microwave ovens. The oval design is suitable for storing beverages, children's milk and various grains, nuts and teas, etc. when traveling in the wild; High-cylinder PP plastic fresh-keeping box: suitable for storing long-shaped food such as noodles and cucumbers, because the height dimension of the high-cylinder PP plastic fresh-keeping box is higher than that of the general PP plastic fresh-keeping box, the processing technology requires high mold size and mold removal. Therefore, there are not many manufacturers that can produce high-cylinder PP plastic fresh-keeping boxes on the market, and there are relatively few products. In addition to this, there are also clear PET box, clear PVC box, etc. Clothing box is an indispensable part of clothing products, which can protect clothing. It is also necessary to pay attention to the management of the clothes box, and to play the due effect of the packaging box. Clothes boxes are divided into inner packaging and outer packaging according to different packaging uses, such as socks packaging, underwear packaging, T-shirt packaging, shirt packaging, suit packaging, etc. Management of inner packaging. The inner packaging is to keep the clothing clean, easy to count, and easy to store and transport. Usually, transparent plastic bags with moisture-proof effect are used, such as transparent plastics of OPP and CPP. The printing is relatively simple or there is no printing directly. The requirements are complete, clean, suitable size, and good transparency; Management of outer packaging. The outer packaging of clothing is generally made of plastic woven bags, wooden boxes, and corrugated boxes, which are convenient for storage and transportation, and also have moisture-proof measures. Most of the clothing is transported by land and sea, and some fast fashion clothing will also be transported by air. The outer packaging of clothing should be kept clean, dry and firm, suitable for long-distance transportation.