Screen printing is the most widely applied printing technique on knitted clothing. It uses silk screen as printing plate material, making print film (prevent printing ink) and image (printing ink skipped on printing stock through external force) and forming printed image. The whole printing process includes computer color design, filming, sunning and drying.
In general, thickener is classified into mucilage and slurry. So, printing is also classified into offset printing and watermark.
Slurry printing is the most common printing technique for
knitted clothing, also the basic technique for screen printing. Its working principle is similar to dyeing. What different is that it dyes an area on fabric into the required color. The technique can print on all of fabrics having light color. The slurry in slurry printing is water soluble resin slurry, used for compromising or diluting paint pigments in clothing. It is an assistant without color which is also transparent and can dissolve in water. The printing materials will dissolve completely in several washings after drying. And pigment will combine with fabrics and not dissolve in water. The printed position will become soft after washing and has the same hand feeling as non-printed position.
Adhesive agent printing is also a type of screen printing. The sizing agent has colloid spreadability, overcoming the limitation of slurry printing, suitable for different color depth or materials printing. The printing has a layer of plastic feeling seal surface and cannot ventilate. For this, in terms of T-shirt, large size adhesive agent printing is not allowed. Large image should be printed by using slurry printing, interspersed with mucilage which can highlight image layering.