Oxygen-blocking, fresh-keeping and anti-corrosion water-based plastic printing ink and preparation method thereof

Abstract

The invention relates to oxygen-blocking, fresh-keeping and anti-corrosion water-based plastic printing ink and a preparation method thereof. The printing ink is prepared from the following raw materials in parts by weight: 10-40 parts of polyvinyl alcohol water-based acrylic resin, 5-30 parts of sodium alginate modified water-based acrylic resin, 5-25 parts of polyester modified acrylic resin, 20-30 parts of water-based environment-friendly pigment slurry, 1-5 parts of an organic silicon defoaming agent for food, 1-15 parts of a carnauba wax agent and 5-30 parts of water. The ink is non-toxic and pollution-free, does not release harmful gas in the printing process, is small in environmental pollution and does not cause harm to human health. The production process is simple to operate, can effectively reduce the production cost, and is beneficial to general popularization and application.

Description

technical field [0001] The invention belongs to the technical field of functional polymer materials, and relates to a water-based ink preparation technology, in particular to an oxygen-preserved and anti-corrosion water-based plastic printing ink and a preparation method thereof. Background technique [0002] With the diversification of market demand, people's requirements for packaging are getting higher and higher, and the functional requirements are also increasing. The survey shows that in the field of fresh food in the past three years, the demand for packaging with oxygen barrier, freshness preservation and anticorrosion has continued to grow rapidly at a rate of more than 20%. The traditional method of oxygen-barrier fresh-keeping plastic film is to first coat the film with polyvinyl alcohol and acrylic acid to prepare a coating with oxygen-barrier properties, and then print it with ink. This traditional method increases the cost of use for users. With the increasing...

AI Technical Summary

Problems solved by technology

With the increasing use of water-based ink, part of the water-based ink will penetrate into the pre-coated barrier coating and destroy the integrity of the original coating, resulting in plastic packaging that does not have the function of oxygen barrier, freshness preservation and anticorrosion, making food, fruit, etc. , fresh food, etc. in the process of transportation, circulation and storage will cause serious loss and affect the taste

At the same time, because traditional inks release harmful substances such as ketones, lipids, and polycyclic aromatic hydrocarbons that are harmful to the human body during the plastic printing process, they will not only pollute the air and cause harm to the environment, but also cause harm to the printing workers. Great threat to health

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