A brief introduction to the common sense of matting film!

Matt film is a packaging film with low gloss and high haze, which plays the role of diffuse reflection and matte. The film is not very glossy and is similar to paper. The reflected light is weak and soft, less than 15%, and the haze is generally above 70%. It has many advantages. It is called paper packaging film or natural light film.

Matt film is a packaging film with high haze and diffuse reflective matte effect. It is mainly used in gift packaging, large outdoor advertising printing, book covers and other fields. At present, all similar domestic products rely on imports, and the market demand is huge.

With the changes in people's aesthetic concepts, the requirements for packaging are also constantly increasing, and the surface characteristics are also diversified, reflected in aspects such as aesthetics, shelf effects, advertising and publicity. and stimulate consumers’ visual senses. Under this demand, the application range of matting film will be wider.

Matting film is a highly hygroscopic material. Once moisture absorption occurs, it softens. Sometimes ruffles appear due to inconsistent moisture absorption, which leads to difficulty in printing overprinting, composite wrinkling and other quality issues. Therefore, in daily production and storage, special attention should be paid to the moisture-proof part. Generally speaking, matt films should be stored at a dry humidity of 25% to 50%. Aluminum foil composite film packaging with good barrier properties to prevent moisture. For repeated use, try to place it in a curing room at a temperature of 45 to 50°C and dry for 1 to 2 hours. When using in humid weather or low temperatures, turn on the equipment's preheating system to eliminate moisture adhesion. In order to obtain a uniform roughness, the matting film is maintained at an appropriate thickness. If the total thickness of the film is greater than 15u, the thickness is greater than 3u.

As one of the differences of nylon films, matt film has enriched the types of nylon films. It can be used to enhance the appearance of various products, extend the shelf life, and stimulate consumers' desire to buy and sell. At present, matt films have achieved initial results in domestic flexible packaging and are widely used. It is believed that as the living standards of our people continue to improve and develop, matting films will be widely used.

In fact, the solvent of the light film should be a model that is not miscible with the matting agent and has a boiling point within the production controllable temperature regulations to reduce residues. Secondly, pay attention to the compatibility of the ink to prevent the film from fading or staining due to its interaction with the matting agent. In small amounts or with alcohol. If necessary, it should be evaporated as dry as possible. The diluent of the composite glue is ethyl acetate, whose purity is specified to be above 99%, because the isocyanate of the curing agent is very active and will form amines with water.

According to relevant data, the reaction with isocyanate is 20 times faster than that with the main agent. Therefore, it is necessary to control the total alcohol content. When dry-mixed, it must not exceed 0.2% with alcohol. The regulation for dry mixing is that the total amount of both should not exceed 0.05%.