Easy tear film sealing material properties
easy tear film, also known as easy tear sealing membrane, is now a more upscale sealing packaging products, with the rapid development of packaging industry, convenience, easy to use the packaging products are widely used in all walks of life, easy tear film is one of them.
easy tear film has good sealing, easy to tear, keep the mouth clean and beautiful wait for an advantage, at the same time, easy tear film has high corrosion and oxidation resistance, acid, long shelf life and is not affected by bad weather and other excellent characteristics.
in daily production and life, easy tear film is mainly used in food, medicine and cosmetic packaging and other industries, is a kind of the inner packing, it protect goods in packaging products and all kinds of containers ( All kinds of plastic bottles, plastic boxes, as well as the one-time tea cup, etc. ) The effect of sealing.
easy tear sealing membrane is characterized by the sealing seal fast, while in use and it is easy to tear, container is very clean, is currently the international and domestic the most practical of the inner packing products, plastic cups, bowls and other packaging container used for the cover material, which also has a dedicated film easy open sealable bag type.
easy tear easy open sealable film, easy open sealable film is the application of more varieties. The basic principle of type easy tear easy open sealable film production, usually by a specific formula, make the film after heat sealing strip strength decline moderately, to achieve both can effectively protect the contents of the packaging, but also convenient kaifeng's original intention;
type easy tear easy open sealable film generally adopts multi-layer composite structure, there are at least two layers of main floor and heat sealing layer. Main floor is to give the effect of film of high rigidity and high tensile strength, tear strength, at the same time usually make easy tear type main floor has a high melting point, easy open sealable film between the main floor and heat sealing layer,
has great melting temperature difference, thus improve the thermal sealing processing performance of the film; Heat sealing layer which is also called glue layer, its function is mainly to film sealing reliability and the easy tear film, it is obvious that the selection of materials, heat sealing layer for easy open sealable film properties, is crucial.
in order to obtain high quality easy tear easy open sealable film, heat sealing layer of material, often using special glue or special formula; To the requirements of the product is not high, the heat sealing layer of material also can use a particular brand of general resin. Film stripping after sealing has two cases, one kind is clean with no residue,
a is local residue, a small amount of these two easy stripping principle similar to that of the raw material is different, can be designed according to user requirements.
