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Preparation Of Fragrance Ink And Its Application In Screen Printing

         As a functional ink for flavor printing, flavor ink is mainly composed of binder, pigment, additives and flavor microcapsules. Among them, the main components of inks are esters, alcohols or ketones and aromatics, and the main components of spices are alcohols, phenols, ethers, aldehydes, ketones or esters. In general, the two can coexist.Preparation Of Fragrance Ink And Its Application In Screen Printing

       Fragrance ink in order to maintain the stability and durability of fragrance, the fragrance is made into a kind of microcapsule with fragrance, which is then infiltrated into the ink for screen printing. During the use of fragrance printing materials, the microcapsules are crushed by friction and other behaviors to release fragrance.Preparation Of Fragrance Ink And Its Application In Screen Printing

Preparation Of Fragrance Ink And Its Application In Screen Printing

Preparation technology of scented ink

       In the production process of scented ink, the composition of ink is the same as that of ordinary ink, and the most important technology is the preparation of microcapsules. Microcapsule manufacturing technology is a new technology developed in the 1950s. It was initially used in the production of carbon free carbon paper. Now it has been widely used in food, medicine, liquid crystal, printing and dyeing and other fields. In printing, its main functions include reducing volatility, controlling release, isolating active components, good separation state and so on.Preparation Of Fragrance Ink And Its Application In Screen Printing

      The so-called microcapsule technology is to wrap small droplets or solid particles in polymer film to make microcapsules with small diameter and mix them into the required carrier as an additive. The manufacturing method of the capsule is to refine the coated material first, and then use this.Preparation Of Fragrance Ink And Its Application In Screen Printing

      Technical characteristics of scented ink and its application in screen printing

      Taking some fine particles as the core, the polymer is precipitated, coated and film-forming on its surface. This process is called microencapsulation. The coated material and the capsule wall are two separate phases. The coated material is called heart, core or filler, and the peripheral capsule wall is called skin, shell or protective film. The size of microcapsules is generally 5-200 μ m. Preparation Of Fragrance Ink And Its Application In Screen Printing

      The thickness of the capsule wall is generally between 0.2 and a few microns. During production, because the size of spice microcapsules is very small, aggregates many times larger will be formed after adhesion and aggregation, so it is necessary to grind them mechanically to disperse them to the required degree. When the fragrance ink is prepared, it can be stirred with dispersion equipment when necessary. The high-speed impeller mixer is an ideal fragrance ink dispersion mixing equipment.Preparation Of Fragrance Ink And Its Application In Screen Printing

       The composition of essence is very complex, and the organic matter contained in essence is volatile and unstable chemical substance. Therefore, during its use and storage, it will inevitably volatilize, lose or decompose. In order to protect the essence from environmental factors and extend the time of release, it is best to microencapsulate essence, slowly oxidize and contact with air to release aroma constantly, and prolong its fragrance retention period. There are also some flavour microcapsules.Preparation Of Fragrance Ink And Its Application In Screen Printing

       Only when the ultraviolet (sunlight) irradiation, oxygen (air) flow, heating, humidity changes and other environmental factors are catalyzed, will they react with each other and produce aroma substances. This will avoid the ineffective dissipation of printed matter in general.Preparation Of Fragrance Ink And Its Application In Screen Printing

      The shape of microcapsules is similar to our common containers, with a size of less than hundreds of microns. They are made of a variety of materials and processes, and have a wide range of uses. There are two types of microcapsules for fragrance: one emphasizes “slow release”, and its capsule wall has many micropores, which can make the fragrance release slowly and the fragrance last. Preparation Of Fragrance Ink And Its Application In Screen Printing

      At the same time, the capsule wall has certain toughness and strong resistance to mechanical impact, but it is sensitive to the environment. If the temperature rises, the release of fragrance can be accelerated; Another kind of capsule wall is more “solid”, which is slow to environmental changes, but the capsule wall is fragile, and the fragrance can be released at one time under the action of external force.Preparation Of Fragrance Ink And Its Application In Screen Printing