In the summer of recent years, it has become hotter every year. In the same weather as a steamer, wearing a comfortable and convenient T-shirt seems to be the first choice for everyone. If you want to be the brightest person in the crowd in the summer, you certainly can’t just wear a solid color one. Choosing a T-shirt with a unique pattern should be the best choice. In garment printing, screen printing is the most widely used technology. In screen printing, for T-shirts are the most widely used. 90% of the T-shirts we buy are screen printing, which can make a flat T-shirt become fresh, cute or energetic styles, make the basic T-shirt fashionable, let’s learn it in simple.
Screen printing has the lowest printing cost and convenient. For some urgent, small quantity garment printing orders, screen printing can be fast delivery although screen printing technics is a little complicated, including design, filming, plate exposure, printing, and drying.
Screen printing is based on vector output to make the printing screen. In theory, all patterns can be screen printed to restore the guest’s design. The film is similar to the photo film. The principle and composition of the screen printing film is a reverse process. In designing, the figure is superimposing and splicing composed of different lines, colors, shapes. The screen printing film is exposed by light-sensitive technology. Through the photosensitive material, divide the area to be useful and useless by exposure and rinsing.
First, let’s look at the materials needed for a screen printing screen.
- Frame to support the entire screen printing screen. Usually is alloy aluminum.
- Screen mesh deployed on the frame usually is polyester silk screen printing mesh for its high tension and low hygroscopicity, scarcely deform, which effected by humidity. There is 10-460 mesh count for different application. “Mesh” is the unit of specification for the silk screen mesh, which refers to the number of holes in the length of 1 inch (25.4 mm). According to the industry standards for screen production, different screen printing mesh has a specified yarn diameter: the higher mesh count, the better accuracy and fineness of the screen printing image. The mesh count is selected according to the requirements of the material to be print.
- After the mesh stretching on the frame, coating the emulsion on the screen. Stick the film. Exposure by ultraviolet light. The exposed area forms an impervious film. The area blocked by the black film be flushed by water and become slot transparent by the mesh.
- During the screen printing process, the pigment penetrates the fabric through the holes of the silk screen mesh. Different colors, through different screen printing screens for color printing, and finally form the original design image for the customer.
In the textile screen printing process, after treatment processing is also essential, the printed image must be fixed by high-temperature steaming or baking to make the ink combined with the textile fiber firmly. After fixing, the printed textile should be washed to remove the carrier solvent and the unfixed dye to make the color bright. Even if use the coating, it should be high temperature baked and without washing.
The textile can be printed by screen printing with the individual ink to make clothing refined, like flock printing, discharge printing, penetrating printing, gold blocking printing, thick plate printing, silicone printing, and other printing processes.