In the current food plastic packaging printing, benzene-soluble chlorinated polypropylene ink is the most widely used. The manufacturing and use technology of this type of ink is mature, and it is mainly used in the inner printing of BOPP (bidirectionally stretched polypropylene) material, and the gravure printing method is adopted. Although this ink has excellent printability, good post-printing processing performance, and fast drying, due to the relatively high toxicity of toluene, the residual solvent value of the printed matter is relatively high; the thermal stability of chlorinated polypropylene is poor, and the production and storage process It is easy to release chlorine and form hydrogen chloride, which makes the ink more acidic and causes serious corrosion to the printing plate roller; benzene-soluble ink can destroy the ozone layer and also cause harm to the health and safety of workers during use. And the residues left in the packaged products will cause a certain degree of pollution to the food in the package under certain conditions. This ink is tending to be eliminated, and regulations for banning or controlling the use of this ink have been formulated in Europe and some developed countries.
It is precisely because of the various problems of benzene soluble ink, environmentally friendly ink came into being. The use of environmentally friendly inks not only causes no pollution to the environment, but also does not cause physical harm to the operators, and it will not cause damage to the food inside.
Environmentally friendly inks that are already on the market are:
Water-based ink
Water-based ink is the ink used in most flexographic packaging and printing at home and abroad. It is mainly made of water-soluble resin, organic pigments, solvents and related additives through compound grinding. Water-soluble resin is the linking material of water-based ink. Water-soluble acrylic modified resin is often used as the linking material in China. Its heat resistance, weather resistance, chemical resistance, pollution resistance and glossiness have significant advantages, regardless of direct Disperse and dissolve or synthetic polymer emulsions, all show excellent performance. Water-based ink does not contain volatile organic solvents, which can not only reduce the residual toxicity of printed products, but also prevent fire due to static electricity and flammable solvents. Water-based ink is not only a new type of "green" printing ink, but also the best product to replace benzene-soluble ink.
Ultraviolet (UV) curing ink
Ultraviolet curing ink refers to the ink that crosslinks in the ink under the irradiation of ultraviolet light of a certain wavelength and changes from liquid to solid to complete the curing of the ink. Before the dissolution of the binding material, the macromolecular prepolymer is firmly Form an ink film. UV-curable ink is mainly used for flexible printing of soft substrates. It consists of prepolymer, reactive diluent, pigment, additives, photoinitiator / composite. Among them, the choice of reactive diluent has an effect on the migration reaction in the ink formulation; the performance of the additive on the ink (printability, ink migration, substrate wetting, friction coefficient, wear resistance, pigment dispersion and stability Properties) and the odor of the printed matter; the spectral range of the ultraviolet absorption of the pigment is required to be as small as possible. The ideal pigment should have good dispersibility, good leveling, strong coloring power, small ultraviolet absorption under light irradiation, and polymerization. The characteristics of the reaction without hindrance. When printing with UV-curable inks, attention should be paid to the inhibition of polymerization, surface tension and wetting, the correlation between the viscosity of the ink and humidity, and the expansion of the printing plate; due to the poor adhesion of the ink to plastic, the Plastic is treated with flame or corona discharge to improve the adhesion of the plastic surface.
Electron beam curing ink (EB ink)
Electron beam curing ink refers to the ink that can quickly change from liquid to solid under the irradiation of high energy electron beam, also known as EB ink. The electron beam energy is high, and it has strong penetrating power to solid components such as pigments and fillers. There will be no situation where the ink is hindered by the pigments or fillers. The drying inside the ink film will not be affected.
Ink as a printing material, when it is used in food packaging, must comply with the principle of harmlessness. Food packaging must not use conventional inks. The printing manufacturer must ensure that all the solvent in the ink is volatile after printing. The ink must be completely cured and meet the corresponding standards of the application industry.
Pet Houses
Enclosed bed can be used as a cozy cave to hideaway, enhances privacy and make your pets feel warm and secure. Perfect hideaway and a quiet, private place to sleep.
GREEN MATERIAL: The pet condo is made of environmental material and washable clothes with No odor.
EASY TO ASSEMBLE: The pet house is simple to install, no glue or other installation tools are required, all instructions and parts are included. The design of the shape makes it look more exquisite. You can easily assemble it in a few minutes according to the installation drawings.
SPACIOUS SPACE: There is plenty of space for pets to rest and play.
Suitable for parks, camping, travel, homes and other places, carry the tent.
PERFECT GIFT: The unique pet house design and sturdy room structure, you can use as a gift to your friends and relatives who also love pets. The pet house will surely make your friend and his pet like it. If you have any quality problems, please contact us in time.
Pets are our family and friends, they need a warm and private place.
We are a Chinese pet products manufacturer, our company produces and sells various cat accessories and dog accessories, including Pet Toys , Pet Apparel And Accessories, Pet Collar And Leashes , Pet Beds And Accessories, Pet Cleaning And Grooming Products, Pet Bowls And Feeders , Pet Houses, and Pet Carriers And Travel Products, which are accepted OEM&ODM. Please don`t hesitate to contact me if you need anything.
Pet Houses,Dog House,Cat House,Outdoor Cat House
Jilin LOYO Pet Products Co.,Ltd. , https://www.loyopetproducts.com