Clear plastic film of three optical performance, flexible packaging quality guaranteed

As plastic packaging materials, the optical properties of the plastic film, such as fog, light transmittance, gloss, etc. , have high requirements, to ensure the printing and composite products bright and beautiful. 1, plastic film the fog fog degrees is deviating from the direction of the incident light through a transparent film project scattering luminous flux and the ratio of the luminous flux, expressed as a percentage. Haze characterize the degree of clarity of the transparent material. Haze and thin film material itself inherent nature and additives used, for example: film crystallinity and orientation degree, the type, particle size and dosage of additives, etc. But it is also related to the forming process and the environment. 2 transparency for transparent plastic film, plastic film, the light transmittance demand is higher, general should reach more than 92%; For the opaque plastic film, such as white film, insist on the high whiteness, good opacity. 3, plastic film gloss shine said the extent of the thin film surface level off, smooth, can through to the light reflection ability to determine. Use gloss meter measuring glossiness, high gloss materials commonly used 45 & deg; Refraction, medium gloss materials using 60 & deg; Refraction.