Системно-технічний аналіз технологій виготовлення термозбіжних етикеток

Abstract

Shrink label today is one of the leading innovative solutions in the field of packaging labeling. Heat-shrinkable film has mechanical strength, elasticity and moisture-proof properties, easily changes linear dimensions under the influence of temperature, which allows it to take the form of packaged products, prevents unauthorized opening and forgery, and attracts buyers through original design solutions. The technology of heat-shrinkable labelling of products is used in the pharmaceutical, cosmetology, food, dairy, confectionery industries. To preserve the product’s proper appearance until the end of its service life, as well as to be able to decorate it printing on the shrink label is performed on its inner side. Gravure and flexographic printing technologies are mainly used to apply images to shrink labels. The specifics of the technological process of manufacturing a shrink label determines the use of materials with different physical properties: transparency, gloss, thickness, strength, coefficients of friction and tensile, temperature, percentage and time of shrinkage, which significantly affects its final cost. The most widely used are PET and PVC films. PVC film is deformed at lower temperatures and is more resistant to the external environment, while the use of PET films allows to achieve better thermal shrinkage and, accordingly, to ensure higher print quality. When applying the information to the heat-shrinkable film, it can be used water-based inks, but then there is a possibility of blurring of the image when passing the package through the steam furnace. As an alternative to printing on such films, UV fixing inks are used, which allows to apply multi-color complex images on any type of material, but this method is quite expensive due to the high cost of inks and printing equipment. Therefore, it is important to conduct system-technical, economic analysis and determine the most cost-effective and efficient technology for the production of shrink labels.

Keywords

• gravure printing
• flexographic printing
• imprint
• shrink label
• film material