Antifog thinned high-toughness heat shrinkable packaging color film

Abstract

The invention relates to an antifog thinned high-toughness heat shrinkable packaging color film. The antifog thinned high-toughness heat shrinkable packaging color film is composed of an upper layer, a middle layer and a lower layer. The upper layer and the lower layer are both made of a mixture containing metallocene MPE, LDPE, LLDPE and an additive; and the middle layer is made of a mixture containing LDPE, MDPE and HDPE. As the upper layer and the lower layer have a high metallocene content, the purpose of thinning by 20% has no influence to the mechanical properties of the film. The additive is a mixture of a lubricant, a plasticizer and an antifogging agent. The antifogging agent enables no formation of water mist after freezing of the product, thus increasing the optical properties and exhibition effect of the film. The middle layer employs about 40% medium density MDPE, and under the premise of ensuring the rigidity, the mechanical properties and optical properties of the film are increased. In general, under the premise of ensuring normal use, the raw material consumption is reduced, and consequently the production cost is reduced.

Description

Technical field: [0001] The invention relates to a heat-shrinkable film, in particular to an anti-fog thinning high-toughness heat-shrinkable packaging color film. Background technique: [0002] As a common packaging material in daily life, heat-shrinkable packaging color film is widely used. Products such as beverages, mineral water, tea, beer, milk, daily chemicals, cleaning products, oil products, food and medicines need to be wrapped as long as they have a carrier. , you can see the figure of heat shrinkable packaging color film. Since multiple independent carriers are shrunk by a layer of film to form a whole, it has good strength, high toughness, and beautiful appearance; and because the raw material of the shrink film itself is non-toxic, it is not easy to break and crack like PVC film, and it is toxic and not It will be deformed like a carton after being damp and bumpy, so it is sought after by more and more domestic and foreign factories. [0003] Due to the limit...

AI Technical Summary

Problems solved by technology

[0003] Due to the limitation of raw materials and processing technology, the existing heat-shrinkable packaging color film has thick and uneven thickness, low impact strength and tear resistance, poor transparency, poor heat sealing, and water mist after freezing and other technical issues