CN201512174U

CN201512174U - BOPP/PP composite food packing film

Info

Publication number: CN201512174U
Application number: CN2009201226137U
Authority: CN
Inventors: 黄水寿
Original assignee: Zhejiang Great Southeast Packaging Co Ltd
Current assignee: Zhejiang Great Southeast Packaging Co Ltd
Priority date: 2009-06-11
Filing date: 2009-06-11
Publication date: 2010-06-23
Anticipated expiration: 2019-06-11

Abstract

The utility model relates to a BOPP/PP composite food packing film, which comprises a BOPP film and a PP film, wherein the BOPP film is compounded on the PP film, the BOPP film is of an antibacterial two-way-stretching BOPP film, the antibacterial two-way-stretching BOPP film comprises an upper layer, an intermediate layer and a lower layer, wherein the upper layer is of an antimicrobial layer, the intermediate layer is of an intermediate PP layer, and the lower layer is of an antimicrobial layer, the intermediate layer covers the lower layer, and the upper layer covers the intermediate layer; and the PP film is of an antibacterial PP film, the antibacterial PP film comprises an upper PP surface layer and a lower antimicrobial surface layer, and the upper PP surface layer covers the lower antimicrobial surface layer. The BOPP/PP composite food packing film can effectively improve the performance of the product, and also can reduce the production cost.

Description

The BOPP/PP composite food package film

Technical field

The utility model belongs to a kind of BOPP/PP composite food package film.

Background technology

At present, the food of the consumption of domestic maximum and medicine composite package film adopt common BOPP film (biaxially oriented polypropylene film) and PP film (polypropylene screen) to be composited, and this complex film is because low price is subjected to user's welcome deeply.

But, because the PP film of BOPP itself exists the permeability to air and the water permeability of trace, poor sealing performance, thereby bring hidden danger to depositing the long food of storehouse frame, be subjected to the invasion and attack of germ easily, in order to stop above situation, the user is forced to the low PP film of cost is replaced by the small vacuum plated aluminum film of high-grade permeability to air, has increased productive costs greatly.

Summary of the invention

In order to overcome the deficiency that can not take into account properties of product and productive costs of existing composite food package film, the utility model provides a kind of can effectively promote properties of product, simultaneously the lower BOPP/PP composite food package film of productive costs.

The technical scheme that its technical matters that solves the utility model adopts is:

A kind of BOPP/PP composite food package film, comprise BOPP film and PP film, described BOPP film is compounded on the described PP film, described BOPP film is antibiotic biaxial tension BOPP film, and described antibiotic biaxial tension BOPP film comprises upper strata, interlayer and lower floor, and described upper strata is last antiseptic layer, described interlayer is the middle PP layer, described lower floor is following antiseptic layer, and described interlayer covers in the described lower floor, and described upper strata covers on the described interlayer; Described PP film is antibiotic PP film, and described antibiotic PP film comprises PP top layer and following antimicrobial surface, and the described PP top layer of going up covers on the described antiseptic top layer down.

The beneficial effects of the utility model mainly show: can effectively promote properties of product, productive costs is lower simultaneously.

Description of drawings

Fig. 1 is the structural representation of the utility model bacterium BOPP/PP composite food package film.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is further described.

With reference to Fig. 1, a kind of BOPP/PP composite food package film, comprise BOPP film and PP film, described BOPP film is compounded on the described PP film, and described BOPP film is antibiotic biaxial tension BOPP film, described antibiotic biaxial tension BOPP film comprises upper strata 1, interlayer 2 and lower floor 3, described upper strata 1 is last antiseptic layer, and described interlayer 2 is the middle PP layer, and described lower floor 3 is following antiseptic layer, described interlayer 2 covers in the described lower floor 3, and described upper strata 1 covers on the described interlayer 2; Described PP film is antibiotic PP film, and described antibiotic PP film comprises PP top layer 4 and following antimicrobial surface 5, and the described PP top layer 4 of going up covers on the described antiseptic top layer 5 down.

The BOPP/PP composite food package film of present embodiment, in material, added antibacterial matrices, this antibacterial matrices adopts molecule assembling antimicrobial technology, adopt chemical method, on the strand of matrix resin assembling through preferably have efficient spectrum activity, to the antibacterial functions group of human body safety non-toxic, good heat resistance, the antibacterial plastic concentrate that obtains; Can select antibacterial plastic concentrate for use is polyamine and guanidine salt polymer, and the poly-mer that contains guanidinesalt is a kind of mildew-resistant material with good disinfecting, antimicrobial, in developed countries such as Britain, all uses as antiseptic.

In antibiotic biaxial tension BOPP film, the percent by weight of upper strata 1, interlayer 2 and lower floor 3 is respectively 3～8%, 85～92% and 4～9%, wherein is preferably 5%, 90% and 5%.Wherein, the raw material in the upper strata 1 is PP material, extending agent and antibacterial plastic concentrate, and wherein the percent by weight of PP masterbatch, extending agent and antibacterial plastic concentrate is respectively 90～96%, 3～8% and 1.5～3%; The raw material of interlayer 2 is PP material and Charge, and wherein the percent by weight of PP material and Charge is respectively 80～92% and 8～20%; The raw material of lower floor 3 is PP material, extending agent and antibacterial plastic concentrate, and wherein the percent by weight of PP masterbatch, extending agent and antibacterial plastic concentrate is respectively 90～96%, 3～8% and 1.5～3%.

In the antibiotic PP film, the percent by weight of last PP top layer 4 and following antimicrobial surface 5 is 85～95% and 5～15%.Wherein, the raw material in the following antimicrobial surface 5 is PP material, extending agent and antibacterial plastic concentrate, and wherein the percent by weight of PP masterbatch, extending agent and antibacterial plastic concentrate is respectively 90～96%, 3～8% and 1.5～3%; The raw material on last PP top layer 4 is PP material and Charge, and wherein the percent by weight of PP material and Charge is respectively 80～92% and 8～20%.

Wherein, upper strata 1, interlayer 2 and lower floor 3 are by three-layer co-extruded technology, and the flat embrane method of biaxial tension processes.5 of last PP top layer 4 and following antimicrobial surfaces adopt two-layer coextrusion film blowing to process.Antibiotic biaxial tension BOPP film and antibiotic PP film Compound Machining form.

Present embodiment has solved the technological deficiency that exists in the prior art, provides a kind of and can effectively stop growth of microorganism, can not roll up the complex film of packing cost again, has solved the problem of microbial contamination food.

Claims

1. BOPP/PP composite food package film, comprise BOPP film and PP film, described BOPP film is compounded on the described PP film, it is characterized in that: described BOPP film is antibiotic biaxial tension BOPP film, and described antibiotic biaxial tension BOPP film comprises upper strata, interlayer and lower floor, and described upper strata is last antiseptic layer, described interlayer is the middle PP layer, described lower floor is following antiseptic layer, and described interlayer covers in the described lower floor, and described upper strata covers on the described interlayer; Described PP film is antibiotic PP film, and described antibiotic PP film comprises PP top layer and following antimicrobial surface, and the described PP top layer of going up covers on the described antiseptic top layer down.