The perfect combination of bronzing paper and bronzing paste

First, manual bronzing paste

1. Hand-made flat bronzing paste: It is an organic combination of an acrylic emulsion and a tackifying resin emulsion which are copolymerized by a special acrylate. This improves the compatibility and stability of the emulsion, increases the peel strength of the emulsion, and enables the bronzing paste to bronze at low temperatures. Therefore, many materials are also known as cold stamping gold paste. Because the bronzing paste can form a film quickly between 35 ° C and 120 ° C, it is the advantage of the initial adhesive force of the resin emulsion itself that the bronzing paper is attached to the bronzing paste. The characteristics of the bronzing paste are: the bronzing sizing is thin, the hand feels soft, elastic, and does not shrink, and is especially suitable for the manufacturers who use the line bronzing and the pursuit of the hand.

2, three-dimensional bronzing paste: is the product of acrylic emulsion or EVA emulsion grafting technology. The biggest feature of the three-dimensional bronzing paste is that it has a high solid content and does not cause unevenness during use. It can be used to achieve the required film thickness by multiple printings using a common screen (80-120 mesh/im) which is usually used. The 3D printing effect is obtained, and then the working pressure and temperature of the transfer machine are adjusted to perform hot pressing and bronzing to form a three-dimensional three-dimensional bronzing effect.

3. Mirror bronzing paste: It is mainly a bronzing paste synthesized by adding EVA polymer copolymer to hot melt powder. The appearance of the mirror bronzing paste is milky white, because the bronzing paste contains a large amount of hot-melt powder. When printing the substrate, it is easy to fill the uneven surface of the substrate. After the hot-hot stamping, the surface of the bronzing film is very flat and bright. The reflective effect is very good and has a mirror effect. So someone called the mirror bronzing paste. The mirror bronzing paste contains hot-melt powder, so in the hot pressing process, the bronzing temperature depends on the melting temperature of the hot-melt powder to achieve good washability; this is also the reason why the mirror bronzing pulp feels harder than other bronzing pastes.

Second, mechanical printing bronzing paste

1. Mechanical flat printing bronzing paste: different from manual flat bronzing paste. The manual flat bronzing paste pursues the initial initial adhesion force, while the mechanical printing bronzing pulp has a small initial tack requirement on the surface. When the cloth is printed, the cloth can not be adhered to the fabric, otherwise the final quality problem will be affected. The process of mechanical flat printing bronzing pulp: fabric sizing → drying → collecting → placing cloth → bronzing → forming. The mechanical flat bronzing paste has a small amount of sizing, so the hand feels good, but the flatness of the bronzing is not so good, and the brightness is poor, so some people also call it a matte bronzing.

2, mechanical three-dimensional bronzing paste: Because of the special nature of mechanical printing, in order to be able to produce 3D three-dimensional bronzing effect, the mechanical printing machine can be repeated as many times as manual printing, so when setting the production of mechanical printing bronzing paste formula, Microcapsule foaming powder was added to the production process. Using the working principle of microcapsule foaming powder, microcapsule foaming powder plays a key role in the process of printing overheating, which can meet the requirements of three-dimensional process and solve the process requirements of heat-pressing. The shortcoming of mechanical three-dimensional bronzing paste is that the elasticity is worse.

3, mechanical special bronzing paste: As is well known, many mechanical printing is active printing. In order to better achieve the other effects of printing, this year, in the active printing, the coating bronzing process was added. The general paint printing is dry and wet printing process, the PH value is neutral, and the reactive printing is wet and wet printing process, the PH value is not neutral, so there are new requirements in the market. The mechanical special bronzing paste requires the solution of the problem of resistance to PH on the basis of the original. At present, this printing process has been successfully applied in mechanical printing factories, which saves time and saves production costs and meets the development needs.

Third, crafts bronzing paste

1. Fabric bronzing paste (sue-making process bronzing pulp): The range of resin emulsion selected by fabric bronzing pulp is large, and acrylic emulsion, tertiary vinegar emulsion and EVA emulsion can be used. Because in the application, after the cloth crafts are bronzing, the water-washing property is not required under normal circumstances, and the requirements of the opponent are not very high. It is only required to be film-forming when printing, and the effect of strong hiding power, especially for dark fabric crafts, It can not only cover the fluff, but also easily smear the suede cloth when it is printed, so as to meet the requirements of the subsequent process, so that the bronzing paper can be easily affixed. Therefore, when using the resin to produce the cloth bronzing paste, it is necessary to add a certain amount of inorganic minerals to increase the hiding power, and at the same time, it must be kept hot at a low temperature (the pressing temperature is generally 30 ° C ~ 45 ° C, can keep other parts not Hot on, keep the fabric picture cleanliness).

2, paper art bronzing paste: mainly choose vinyl acetate emulsion or EVA emulsion for use. This kind of emulsion has good abrasion resistance to paper, good adhesion and overall leveling, so it is especially suitable for paper. When printing or painting, the problem of tension on the surface of the paper and the problem of paper flowability are well solved, so that the hot foil on the paper exhibits a smoother and more luxurious effect.

With the emergence of a large number of new products, bronzing paste is also constantly expanding. In any case, the printing of bronzing paste must be uniform, flattened, pre-baked and hot pressed or hot rolled should be controlled within the appropriate temperature and time range to ensure the quality of the finished product, for screen printing technology, and for textiles. Product added value and appreciation value.