Generally speaking, substrates of different materials have different requirements for printing inks. The materials used in packaging are ever-changing, so there are a variety of printing inks suitable for different packaging. However, some basic characteristics are necessary for various inks. The basic requirements of packaging for printing inks 1. Good liquidity. Ink with good fluidity is easy to transport and transfer when in use, without clogging the print head. 2. The ink should be dried quickly after being printed on the substrate, with good adhesion and not easy to rub off, to ensure that the printed matter is clean and tidy. 3. The color of the printed matter should be correct, without fading or changing. Packaging special requirements for printing inks 1. Diversified colors A large part of the purpose of product packaging and decoration is for promotion. Therefore, the diversification of printing colors and bright colors are the basic requirements for packaging printing inks. Appropriate printing inks can print beautifully decorated packaging and cause consumers to Purchase interest. The decoration of packaging prints is pretty. Most of the pigments used are organic compounds. These pigments are bright, but the durability is generally not very ideal. The prints are placed for a long time, and they often fade. This makes the packaged goods look a bit. Obsolete, so when choosing color inks for packaging, pay special attention to the use of pigments that are not suitable for fading to ensure the lasting and bright packaging decoration. 2. Special process requirements Different processes have different requirements for printing inks. For printing iron ink, if the printed packaging does not require high-temperature cooking and sterilization, then there is no need to consider the problem of high temperature resistance of ink. Ordinary ordinary ink can meet the process requirements. Otherwise, high temperature cooking resistance ink must be used to prevent In the process of food sterilization, the ink fades and some chemical reactions and physical changes affect the decoration effect of the product packaging. 3. Special hygiene requirements Hygienic requirements for printing inks are also an important aspect. For example, when printing plastic films for food packaging, the permeability of the printing ink must be considered to avoid food contamination. 4. Special drying requirements Different materials have different ink drying properties. Materials such as ceramics, tinplate, plastic film, etc., because the surface is smooth and smooth, ordinary ink is not easy to stick, you need to use fast drying ink, such as ultraviolet drying ink, pulse radiation drying ink, etc. There are many factors that affect the use of ink, and it is unrealistic to consider all of them. Therefore, only by focusing on the main factors, and through the proper selection of pigments, binders and additives, can the basic qualified printing ink be formulated.
Bird bath are mostly made of porcelain, because apart from pecking at rice, bird bath are more convenient for birds to drink, so porcelain bird bath are the most suitable materials for all. Because the ceramic is heavy, it is not easy for birds to turn over when they step on it. It is better to find wide than high.
Ceramic Glazed Bird Bath ,Feeder for Bird, Beautifully shaped Bird Bath Yixing Bocai Pottery Co.,Ltd , https://www.bocaipottery.com
April 30, 2024