Schoolbag printing.

In a mature schoolbag production process, schoolbag printing is a very important part.
The schoolbag is divided into three categories: text, logo and pattern.
According to the effect, it can be divided into plane printing, three-dimensional printing and auxiliary material printing.
It can be divided into: adhesive printing, screen printing, foam printing and heat transfer printing according to materials.
Production steps: material selection → plate printing → lofting → production → finished product
The American Physiotherapy Association has conducted a study on students in 9 grades. It shows that overweight backpacking and wrong backpacking methods may cause back injury and muscle fatigue in teenagers.
Researcher Mary Ann Wilmuth said that children with heavy backpacks will cause kyphosis, scoliosis, forward tilt or distortion of the spine.
At the same time, the muscles may be tired due to extreme tension, and the neck, shoulders and back are vulnerable to injury. If the weight of the schoolbag exceeds 10% – 15% of the backpacker’s weight, the damage to the body will be multiplied. Therefore, she suggested that the backpacker’s weight should be controlled below 10% of the backpacker’s weight.
The American Physiotherapy Association recommends that children use backpacks with their shoulders as much as possible. Experts say that the double shoulder method can disperse the weight of the backpack, thus reducing the possibility of body distortion.
In addition, the trolley bag is a good choice for younger students; Because senior students in the United States often need to go upstairs and downstairs to change classrooms, while junior students do not have these problems.
In addition, it is also important to properly place the items in the bag: the heaviest items are placed close to the back.