The printing process of a mist spray bottle
Screen printing is a printing method that uses screen printing for screen printing, which belongs to filter printing.
The logo screen printing of the cosmetic packaging bottle needs to start with the mesh material and stretched mesh first. Stretching the mesh on the frame is a very important part of printing. Various wire meshes have different tensions. The precision wire mesh needs to be pulled tightly, and it should not be pulled too hard. To make the tension of the mesh uniform, use a tensiometer to measure the tension of the mesh at any time. When the standard tension is reached, let the mesh stand still for 20 to 30 minutes to stabilize the tension.
Generally, there is a significant decrease in 48 hours after the mesh is glued, the tension is completely stable for more than 6 days, and the plate can be used after 7 days, and the effect is better at this time. The choice of the screen frame is very important, generally, there are several kinds of a wooden frames, aluminum frames, and steel frames. At present, aluminum frames and steel frames are generally used. They have the advantages of high strength and small deformation. The aluminum frame is light in weight and adapts to the large-scale layout.
1. How to stretch the net
The quality of the mesh is directly related to the effect of plate making and printing. Stretching is the basis for making good plates and printing high-quality prints.
The method of stretching the net is divided into two types: positive stretching and oblique stretching. The so-called positive stretch net is that the warp and weft lines of the net are perpendicular and parallel to the frame edge, which is the most commonly used standard stretch net method. The diagonally stretched net is stretched against the frame edge, and the direction of the wire and the frame edge is generally at an angle of 45°, but according to different purposes or in order to reduce the loss, the angle can also be adjusted appropriately. The advantage of the diagonal stretch method is that it can eliminate the jagged edges of the printed pattern.
2. Screen printing plate making
When making a plate, it should be determined in advance which printing method to use, such as flat-bed mechanical printing, mobile printing, that is to say, the direction of the printed product should be determined. According to these methods, determine the size of the screen frame and the position of the screen.
Generally speaking, the larger the width left around the positive film, the better the printing effect. Of course, it does not have to be placed in the middle of the screen frame, and sometimes it can be offset, as long as it is enough for the printing stroke.
The process of cosmetic bottles wholesale printing:
In order to ensure the best quality and effect of printed fonts on the product, we first perform a cloud of discharge dust blowing treatment before the flame treatment to solve the dust, flying silk, etc. adsorbed on the product before treatment, so as to avoid sticking on the product after passing through the flame. In order to make the ink better adsorb on the product surface, as shown in the figure below. After the product is processed, we will carry out electrostatic dust blowing again, as shown in the figure below. After blowing dust, we will immediately carry out UV ink printing. After printing, the product will immediately be placed on the UV machine tooling to enter UV curing. Converted to a solid, as shown in Figures 13 and 14. After passing the light, the staff will test the product's fastness according to the QC standard. Technicians will accompany the quality control inspection, evaluation, and confirmation before mass production. The inspectors will test the online products made once every 2 hours, and keep abreast of the control of the production process.
