There is no ink on the surface of substrate (uneven ink leakage), the reason is: 1. The mesh number of the screen is too high, and the ink permeability is poor. 2. The sensitive film is too thick and the ink permeability is poor. . 3. There are scars on the blade of the rubber scraper. . 4. The pressure of the rubber scraper is not enough or uneven. . 5. The gap between screen printing plate and substrate is too
1. The screen printed PVC of PVC plastics was put into industrial production in 1931. PVC plastics have the advantages of bright color, not easy to crack, acid resistance, alkali resistance and low price. However, because of the toxicity of some auxiliary materials, PVC products are not suitable for food. PVC film has a wide variety of designs and colors. Most of the colorful plastic cloth and artificial leather sold in the market are PVC products. 2. ABS plastic screen pri
There are generally several printing methods for fabric printing: 1. Pigment direct printing is to print the prepared printing paste directly on the fabric, which is the most simple and commonly used process in the printing process. Coating direct printing process generally refers to printing on white or light colored fabrics, which is convenient in color matching and simple in process. After printing, it can be baked and applied to all kinds of fiber fabrics. According to the commonly
The screen is divided into metal screen and chemical fiber screen. Its name includes screen, screen, screen, etc. it has various specifications and wide uses. In screen printing industry, screen yarn is needed for drying screen plate. The mesh number of screen yarn is selected according to the requirements of printing materials. "Mesh" refers to the specification unit of wire mesh, which refers to the number of holes in the length of 1 inch (25.4mm). Mm is a simple unit of
The screen frames needed in screen printing can be divided into three types: wooden screen frame, aluminum screen frame (hereinafter referred to as aluminum screen frame) and steel screen frame. With the improvement of printing technology and the rise of printing conditions, people are more and more using aluminum or steel screen frames because they have the properties of anti twist or arch change, water resistance, light weight and durability And other advantages are of great help to the qua
What is the main process of screen printing? Is its technological process needle? The main process of screen printing is: making originals, making screen plates, printing, ink drying, etc. Auxiliary instruments and tools What is a tensiometer? Tensiometer is an instrument to measure the mutual traction between the inner part of the wire mesh and the contact body of the fixed wire mesh when the wire mesh is under tensi