Has the anti-fraud functional composite package film of aluminizing
The utility model relates to a kind of anti-fraud functional composite package film of aluminizing that has, and it mainly is applicable to food and pharmaceutical packing bag.
Aluminize composite package film because advantage such as physical properties such as attractive in appearance, leak tightness is strong, steam permeable amount and oxygen transit dose are good is widely used in food and drug packaging.Existing aluminized complex film mostly is three layers, the ink printing layer on surface, the aluminium coated of centre and the hot sealing layer of bottom surface.All aluminizing in the middle whole surface of aluminium coated, can not observe bag interior article.Chinese patent 95226711X number disclosed " a kind of high temperature resistant Al-plastic sealing film ", it comprises hot sealing layer, aluminium foil layer and ink lay, applies one deck nitrocotton resin bed again in the outside of ink lay.It is said that this Al-plastic sealing film has is high temperature resistant, not stratified, nondiscoloration, degree of finish are good, seal tight, yield rate advantages of higher, but it does not have antiforge function yet.
The purpose of this utility model aims to provide article in a kind of visual bag, has the composite package film of aluminizing of anti-fake effect, to overcome the deficiencies in the prior art part.
Has an anti-fraud functional composite package film of aluminizing by this purpose design-calculated is a kind of, comprise the ink printing film on surface, the aluminizer of centre and the hot sealing layer of bottom surface, its architectural feature is that described aluminizer is provided with not aluminum-clad hollow part position, the corresponding site of ink printing film leaves the room, to constitute the false proof window of sky.
The hollow part position of described aluminizer is circular, square, strip or other shape.Described ink printing film and aluminizer are generally PET polyester film or BOPP biaxial stretching polypropylene film; Hot sealing layer is generally PE polyethylene film or PP polypropylene film.
The saturating sky in aluminizer of the present utility model some areas is not aluminized, and forms the empty graph case in conjunction with printing-ink, and the quality of article prevents personation in the visual bag, and anti-counterfeiting performance is stronger.
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is an example structure scheme drawing.
Referring to accompanying drawing, originally the composite package film of aluminizing comprises the ink printing film 1 on surface, middle aluminizer 2 and the hot sealing layer 3 of bottom surface, and aluminizer 2 is provided with not aluminum-clad hollow part position 5, the corresponding site of ink printing film 1 leaves room 4, to constitute the false proof window of sky.
The hollow part position of aluminizer is circular, square, strip or other shape, and the room of ink printing film correspondingly.Ink printing film and aluminizer are generally PET polyester film or BOPP biaxial stretching polypropylene film; Hot sealing layer is generally PE polyethylene film or PP polypropylene film.Its job operation is: add man-hour at aluminizer, resistant to elevated temperatures metal plate washer is installed on aluminum-spraying machine, do not aluminized in the film surface of its covered part, form the hollow part position; According to this hollow part position, the corresponding site of ink printing layer is left room when printing or is formed the empty graph case, behind compound bag, forms the false proof window of article in the visual bag.The size of this false proof window, shape, quantity, layout can be decided according to needs.