Small knowledge that you don’t know
Walking on the streets, students carrying school bags are a scene of our city. To bring a lot of stationery products and textbooks to the campus, students need to give these things a parcel, this is the school bag. The production of the bag provides convenience for going out, so how to choose a good bag? Xiaobian suggested that if you have children at school, the following studies may have to be carefully studied:
The student bag is mainly shoulder bag. The most obvious feature of this bag is that there are two straps on the back for fastening to the shoulder. Generally, it is widely used in kindergartens and primary schools. According to the material, it will be divided into canvas bag, Oxford cloth bag and nylon cloth bag. The grade and quality of the backpack are mainly determined in several ways. One is work. Every corner and pressure line is neat, there is no off-line and jumper, and each needle embroidery is very elegant, which is the standard of high craftsmanship. One is the material used. Generally, the 1680D double-strand fabric is relatively medium-high. The 600D Oxford cloth is a commonly used material. In addition, canvas, materials such as 190T and 210 are usually used for simple bundle pocket type backpacks. In addition, the back structure of the backpack directly determines the purpose and grade of the backpack. High-end and outdoor mountaineering or military backpacks, the structure of the back is more complicated, at least six or more pearl cotton or EVA for breathable mats, and even aluminum. The back of the general backpack is a piece of pearl cotton of about 3MM for the breathable board. The simplest bag-type shoulder bag has no padding material except the material of the backpack itself.
Pay attention to the following points when choosing a schoolbag for students:
1. Buy it by yourself.
Note that the size of the bag is suitable for the child's height. Choose the smallest bag that holds your child's books and student stationery. In general, the bag should not be wider than the child's body, on the back, the bottom of the bag should not be 10 cm below the child's waist. When carrying a backpack, the top of the bag is not higher than the child's head, and the position of the belt should be between 2-3 inches at the waist. The bottom of the bag is the same height as the lower back, and the bag is in the middle of the back, not on the buttocks.
2. Focus on design.
Parents can't ignore the internal design of the bag when they buy a schoolbag for their children. The interior space of the bag is reasonable in design. It can classify children's books, stationery and daily necessities. It can cultivate children's ability to store and organize children from a young age, so that children can develop good habits.
3, the material should be light.
Children's schoolbags should be light, which is a good explanation. Because students have to carry a large number of books and items back to school, in order to avoid the burden of students, the schoolbag should try to choose light materials.
4, the shoulder strap should be wide.
Children's schoolbag shoulder straps should be wide and wide. This is also a good explanation. We all carry the schoolbags. If the shoulder straps are narrow, plus the weight of the schoolbags, long-term back on the body, it is easy to hurt the shoulders; the shoulder straps should be wide. It can help reduce the pressure on the shoulders of the bag and evenly distribute the weight of the bag. The padded shoulder strap can reduce the strain on the trapezius muscle of the bag. If the shoulder strap is too young, the oblique side Muscle will be more susceptible to fatigue.
5, with a belt.
Children's schoolbags should be equipped with a belt. This bag is rarely used in previous school bags. The belt can make the bag closer to the back and the weight of the bag is evenly discharged on the waist and the bone. And the belt can fix the bag to the waist, preventing the bag from swinging and reducing the pressure on the spine and shoulders.
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