Hello, everyone, do you know anything about water transfer printing? Please introduce the downstream and process in detail.

There are two kinds of water transfer printing: water paste and water coating. I don't know which photo you need. There are many pictures on Baidu that can be searched.

Water paste technology:

Making water transfer decals → soaking decals → transferring patterns → drying → finished products.

Production in water transfer printing paper. After the required patterns are processed by computer, the output negative is made into a printing plate, and then various patterns are printed on the water transfer backing paper (specially processed paper does not need to be processed), and then the printed backing paper is printed with cover oil. Another method is to use a color laser printer to print the pattern directly on the water transfer backing paper, and then carry out water transfer printing.

4. Immerse the printed decal paper in water for 30s, and then take it out of the water until it can be transported smoothly. Be careful not to soak for too long, otherwise it will dissolve the glue on the surface of the paper.

3. Pattern transfer. Firstly, the surface of the object to be pasted is treated, then the soaked decal paper is transferred to it, and then the excess water is scraped off and dried.

2. Drying. Metal, ceramics, glass and other items are put into the oven and baked for 20min； at 140; Bake the plastic articles at 70℃ for 60 minutes; Candles, helmets and tempered glass are not baked.

5. Finished product. Spray a layer of transparent finish or matte oil and rubber oil on the surface of baked goods, and dry for 12h to permanently combine the surface with decoration. If you don't do this project, it's ok, but the fastness is not good.

Water coating process:

Known as a relatively environmentally friendly technology, it is also the latest efficient printing production, probably related to his separation from ink in the printing process. Water transfer uses the pressure of water and activator to dissolve and transfer the peeling layer on the water transfer carrier film. The basic process is as follows: 1) Printing film: printing various patterns on polymer film.

; 2) Priming: Many materials must be coated with adhesives, such as metals and ceramics. If you want to transfer different patterns, you must use different background colors, such as brown, brown and khaki for wood grain and white for stone grain.

3) Membrane stretching: Let the membrane lie flat on the water and wait for the membrane to stretch flat;

4) activation: using special solvent (activator) to activate the pattern of the transfer film into ink state;

5) transfer printing: the activated pattern is printed on the printed matter by water pressure;

6) water washing: washing the residual impurities on the printed workpiece with water;

7) Drying: drying the printed workpiece, and the temperature depends on the quality and melting point of the material;

8) topcoat spraying: spraying transparent protective paint to protect the surface of the printed object;

9) Drying: drying the surface of the object sprayed with the topcoat.