First of all, the smoothness of the picture is the most basic requirement. When the guests arrived at the event site, the first thing they saw was the corporate publicity background board, the sign-in board and the answer board. If the background board is not stretched flat, but has folds and bulges, it will give guests the impression that the company is not particular about things, unprofessional and does not pay attention to this activity, and their first psychological feeling about the company will be greatly reduced. This requires the organizer to have rich experience in truss construction, and choose different construction schemes according to different painting materials (Polaroid cloth is thin and thick) to ensure that the background cloth of truss construction is flat and wrinkle-free. Secondly, the splicing problem of painting pictures. Sometimes the width of the background board of activity design exceeds 3.2 meters. When it exceeds 3.2 meters, the ordinary painting machine can't complete the whole painting, so it can only be made by splicing. When splicing, vertical seams must be selected to make the picture stretch flat. If the inkjet stitching technology is not in place, there will be obvious stitching marks, and even the stitching pictures will be misplaced. This kind of question is unacceptable, so we should pay attention to it when accepting it. The best way is to find a strong company to cooperate. If the budget permits, it will be made with a 5-meter-wide inkjet printer, so there will be no splicing problem. Third, the problems that should be paid attention to during construction: In order to create a good visual effect, it is suggested that the left and right sides of the screen should bleed separately, each side is 10cm, and each side is 20CM, so that it is the continuity of the main screen from the side and the overall effect is better; Whether the joint of truss structure can be horizontal and vertical; The head of the stretched painting screen should be cut short to avoid exposing the screen; When splicing a stretched picture, the picture directly touches the ground, and there will be a lot of dust on it. Stretch the picture and wipe it with a wet rag; In winter, due to the large temperature difference between indoor and outdoor, it is easy to make the painted picture brittle or wrinkle, which requires the construction personnel to carefully arrange and use heating equipment such as hair dryer to blow the damaged part of the picture, and the general wrinkles and traces will be removed quickly. If you can't recover, you can only make it again. Fourth, the pungent smell of the picture polaroid. Because calico and printing ink contain volatile chemical reagents, the picture will have a strong pungent smell as soon as it is produced. If the painting is done well, it will be taken to the site for construction, which will cause air pollution at the activity site and cause a bad image to the guests. The reasonable treatment plan is to spray paint two to three days in advance, so that volatile chemical reagents can be completely released and pungent odor can be avoided during construction.