1, Handmade hot stamping paste
1. Manual plane bronzing paste: It is an organic combination of acrylic lotion and tackifying resin lotion, which is copolymerized by acrylate with special performance. This improves the solubility and stability of lotion, increases the peel strength of lotion, and enables the bronzing paste to bronze at low temperature. So many material merchants and printing factories are also known as cold stamping gold paste. Because the bronzing paste can form an adhesive film quickly between 35 ℃ and 120 ℃, it is by taking advantage of the strong initial adhesion of the resin lotion itself that the bronzing paper is attached to the bronzing paste. The characteristics of hot stamping paste are: thin sizing, soft and elastic hand feel, and no shrinkage. It is particularly suitable for manufacturers who pursue line hot stamping and hand feel.
2. Stereoscopic bronzing paste: It is the product of acrylic acid lotion or EVA lotion grafting technology. The biggest feature of three-dimensional gilding paste is that it has a high solid content, and will not produce concave and convex phenomenon in use. Use the ordinary screen plate (80-120 mesh/im) commonly used to achieve the required film thickness through multiple printing, and print a 3D printing effect. Then adjust the working pressure and temperature of the transfer machine for hot stamping to form a three-dimensional three-dimensional gilding effect.
3. Mirror hot stamping paste: It is mainly a hot stamping paste synthesized by adding EVA polymer copolymer to hot melt powder. The appearance of mirror hot stamping paste is milky white, because the hot stamping paste contains a large amount of hot melt powder. When printing the substrate, it is easy to fill in the concave and convex surfaces of the substrate. After heat transfer hot stamping, the surface of the hot stamping film is very flat and bright, with a good reflective effect and a mirror like effect. So some people call it mirror hot stamping paste. The mirror hot stamping paste contains hot melt powder, so during the hot pressing process, the hot stamping temperature depends on the dissolution temperature of the hot melt powder in order to achieve good washing resistance; This is also the reason why the texture of mirror hot stamping paste is harder than other hot stamping pastes.
2, Mechanical printing hot stamping paste
1. Mechanical flat printing hot stamping paste: Different from manual flat hot stamping paste. Handmade flat hot stamping paste pursues a high initial adhesion on the surface, while mechanical printing hot stamping paste requires a low initial adhesion on the surface. When rolling up the fabric after printing, there should be no cloth hair sticking, otherwise it will affect the final quality of the product. The process of mechanical flat printing hot stamping paste: fabric sizing → drying → fabric collection → fabric placement → hot stamping → forming. Mechanical flat hot stamping paste has a good hand feel due to the small amount of sizing, but the flatness of the hot stamping is not very good and the brightness is poor, so some people also call it frosted hot stamping.
2. Mechanical three-dimensional hot stamping paste: Due to the special nature of mechanical printing, in order to produce a 3D three-dimensional hot stamping effect, the mechanical printing machine can repeat printing multiple times like manual printing
Brush, so when setting the formula for producing mechanical printing hot stamping paste, microencapsulated foaming powder is added to the production process. By utilizing the working principle of microencapsulated foaming powder, microencapsulated foaming powder plays a crucial role in the overheating process of printing, meeting the requirements of three-dimensional technology and solving the process requirements of hot pressing during fabric collection and release. The drawback of mechanical three-dimensional hot stamping paste is that it has poor elasticity.
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