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Ink printing for aluminum foil for pharmaceutical packaging

Date: 2019-09-15 13:30

The status quo of medicinal aluminum foil printing ink materials At present, there are many kinds of printing inks in the market, and the brands are different. However, considering the printing process of medicinal aluminum foil and the special requirements of pharmaceutical packaging, the printing ink must have good adhesion to aluminum foil. The printed text pattern is firm and clear, the solvent release is fast, the heat resistance is good, the friction resistance is excellent, the gloss is good, the pigment is non-toxic, the medicine is not contaminated due to the migration of chemical components in the ink, and the practical viscosity should conform to the aluminum foil printing. Process requirements and other characteristics. The inks currently used in aluminum foil for pharmaceutical packaging printing are mainly divided into two categories, which are as follows:

 The first type is a alcohol soluble polyamide ink. Because polyamide resin has good adhesion to various types of printing materials, it is especially suitable for printing polyolefin film, with good dispersibility, good gloss, softness, good abrasion resistance, solvent release and good printing performance. The most used is a gravure printing ink for surface printing of aluminum foil for pharmaceutical packaging and the like which are processed. Because of its wide application, anti-blocking and easy drying, this ink is also used for surface printing of medicinal foil.

medicine foil

 printed on aluminum foil for pharmaceutical packaging

When such inks are printed on aluminum foil for pharmaceutical packaging, various excellent properties can be surfaced, and the heat resistance can meet the requirements in the process of printing and using aluminum foil, and it is the most used type of medicinal aluminum foil printing. However, such inks are not special inks for aluminum foil printing, and there have been problems in the peeling of ink on large-area surface printing of aluminum foil. At present, the domestic ink factory can produce aluminum foil intaglio printing special polyamide ink, and some users show that the ink has good heat resistance and strong adhesion. At 200 °C high temperature heat sealing test, the printed text pattern is still clear and does not change color.

electronic aluminum foil bags

special ink for aluminum foil for pharmaceutical packaging

The second type of ink is a special ink for aluminum foil for pharmaceutical packaging mainly composed of vinyl chloride, vinyl acetate copolymerized resin and acrylic resin. This is a newly developed intaglio printing ink, which is characterized by bright color, high concentration, strong adhesion to aluminum foil, good transparency, and excellent metallic gloss reproducibility of Ink printing for aluminum foil for pharmaceutical packaging. However, since it is a printing ink in a gravure, the solvent has a large volatility, and it is easy to cause the ink to dry in the inking hole of the gravure roll to cause a paste phenomenon when the aluminum foil is printed, which affects the printing quality.

aluminum foil for pharmaceutical

The 8011 aluminum foil, 8021 aluminum foil, and 8079 aluminum foil produced by Mingtai Aluminum can be used for the packaging of medicines and easy to print. On the one hand, the safety of medicines is ensured, and on the one hand, the commerciality and aesthetics of packaging ink printing are taken into consideration.

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