CN203529089U

CN203529089U - High-barrier rice packaging bag

Info

Publication number: CN203529089U
Application number: CN201320392809.4U
Authority: CN
Inventors: 韩立然; 张强
Original assignee: Hebei Peculiar Packaging Co Ltd
Current assignee: Hebei Peculiar Packaging Co Ltd
Priority date: 2013-07-03
Filing date: 2013-07-03
Publication date: 2014-04-09
Anticipated expiration: 2023-07-03

Abstract

The utility model relates to a high-barrier rice packaging bag made of a packaging film with a structure of integrally-bonded composite layers. The composite layers are a BOPA layer and a co-extrusion PE layer which are arranged from outside to inside successively. The high-barrier rice packaging bag is simple in structure; the barrier property, the air tightness, the flexibility, the tear resistance and the strength of the packaging bag are improved, and the shelf life of the packaged food is prolonged. The high-barrier rice packaging bag is used for packaging various kinds of rice.

Description

High-barrier rice package bag

Technical field

The utility model belongs to packaging for foodstuff field, relates in particular to the packing of various rice series products, specifically a kind of high-barrier rice package bag.

Background technology

Along with improving constantly of living standard, customer is not only embodied on mouthfeel and taste the requirement of food, and the packing of food is also had higher requirement.For example, customer presents the demand of convenient easily band, light-weight packed, fresh, high-quality, easy preservation to the packaging bag of rice.The own weight such as traditional gunnysack, Polywoven Bag are just heavy, therefore utilize after their packing rice, the weight of every bag of rice is nearly all more than 25kg, after causing customer to buy, although sack is with low cost, recycle, but because permeability to air is larger, and cannot reach fresh-keeping object, far can not meet industry requirement.

For above-mentioned reason, at present, the general employing of domestic rice deep processing enterprise moulded compound plastic packaging bag, and this packing has the feature that can extend the rice shelf-life compared with Traditional Packing, and its protection against the tide, mildew-resistant, vermins-proof effect are more satisfactory.In addition, pattern, label printing are exquisite, and word, bar code are high-visible, very can attract client, promotion.But it still has following shortcoming:

(1) although the more traditional woven bag of plastic composite packaging bag increased to the shelf-life of depositing of rice, extend only about half a year;

(2) when existing complex pocket is packaged in sealing heat seal, be prone to wrinkling, affect leak tightness and the aesthetics of sack;

(3) compressive strength of existing combined package bag is inadequate; and the problems such as existence and stability is poor, production efficiency is low; and the packaging bag that some employings vacuumize or airing form is packed often there will be the phenomenons such as quick-fried bag, broken bag in transportation, cause poorly sealed to rice.

Utility model content

In order to solve the above problems, the utility model provides a kind of high-barrier rice package bag, has effectively improved barrier, leak tightness and the intensity of packaging bag, makes the shelf-life of packaging rice more of a specified duration, and is easier to transportation storage.

For achieving the above object, the technical scheme that the utility model adopts is as follows:

A high-barrier rice package bag, makes for being bonded in the lamination layer structure packaging film of one, and described composite bed is from outer extremely interior BOPA layer, the co-extrusion PE layer of comprising successively.

As to restriction of the present utility model: described co-extrusion PE layer is nine layers of lamination layer structure that coextrusion blow forms.This lamination layer structure is by being outside to inside followed successively by LDPE mixing LLDPE, LDPE mixing LLDPE layer, LDPE mixing LLDPE layer, LDPE mixing LLDPE mixed elastomer layer, adhesive phase, evoh layer, adhesive phase, LDPE mixing LLDPE layer, and LDPE mixing LLDPE mixed metallocene layer.

As the second of the present utility model is limited: the thickness of described BOPA layer and co-extrusion PE layer is respectively 15 μ m, 100 μ m.

As to the third restriction of the present utility model: be bonded in one by aqueous binder between described BOPA layer and co-extrusion PE layer.

As to the 4th kind of restriction of the present utility model: be attached with the printed layers with packaging article pattern, identification characteristics on the corona surface of described BOPA layer.

As the restriction to printed layers: described printed layers is without ketone ink printing layer without benzene.

Owing to having adopted above technical scheme, the utility model can reach following technique effect:

(1) co-extrusion PE layer of the present utility model is nine layers of co-extrusion film, wherein elastomer layer can increase flexibility and the resistance to tearing of film, evoh layer can increase the oxygen-barrier property of film, plastomer metallocene layer can make film play good sealing function and heat-sealing effect, the reasonable interpolation of various function raw materials, make it when producing a desired effect, cost does not increase;

(2) printed layers of the present utility model is located on the corona surface of outer BOPA layer, can guarantee that printed layers can more stably adhere to, and makes to print color and luster vivid, exquisite;

(3) between BOPA layer of the present utility model and co-extrusion PE layer, by aqueous binder, be bonded in one, make the bonding effect of BOPA layer and co-extrusion PE interlayer better.

In sum, the utility model is simple in structure, has not only strengthened barrier, air-tightness, flexibility, the resistance to tearing of packaging bag, and the intensity of packaging bag, has extended the shelf-life of splendid attire grain product simultaneously.

The utility model is applicable to various rice and packs.

Accompanying drawing explanation

Fig. 1 is the structural representation that forms the lamination layer structure packaging film of the utility model embodiment.

In figure: 1-BOPA layer, 2-aqueous binder, 3-co-extrusion PE layer, the 31-the one LDPE mixing LLDPE layer, the 32-the two LDPE mixing LLDPE layer, the 33-the three LDPE mixing LLDPE layer, 34-LDPE mixing LLDPE mixed elastomer layer, the 35-the first adhesive phase, 36-evoh layer, the 37-the second adhesive phase, the 38-the four LDPE mixing LLDPE layer, 39-LDPE mixing LLDPE mixed metallocene layer, 4-printed layers.

The specific embodiment

a kind of high-barrier rice package bag of embodiment

The present embodiment provides a kind of high-barrier rice package bag, for conventional double-ply bag structure, for the packing of various rice.

The special feature that the present embodiment is different from existing rice bag is:

This high-barrier rice package bag is that the lamination layer structure packaging film that is bonded in one is made, the lamination layer structure of described packaging film is as shown in Figure 1: its from outer to interior BOPA layer 1, co-extrusion PE layer 3 of comprising successively, between described co-extrusion PE layer 3 and BOPA layer 1, by aqueous binder 2, be bonded in one, and on the corona surface of BOPA layer 1, be provided with printed layers 4, described printed layers 4 is without ketone ink printing layer without benzene, be on the corona surface of BOPA layer 1, to print and form man-hour adding, and there is packaging article pattern, identification characteristics.

In order to guarantee the in-use performance of the present embodiment, the thickness of described BOPA layer 1 is set to 15 μ m, and the gross thickness of co-extrusion PE layer 3 is set to 100 μ m.

Co-extrusion PE layer is the lamination layer structure of nine layers that coextrusion blow forms, by approach BAPA layer 1 place rise in, be followed successively by a LDPE mixing LLDPE layer 31, the 2nd LDPE mixing LLDPE layer 32, the 3rd LDPE mixing LLDPE layer 33, LDPE mixing LLDPE mixed elastomer layer 34, the first adhesive phase 35, evoh layer 36, the second adhesive phase 37, the 4th LDPE mixing LLDPE layer 38, and LDPE mixing LLDPE mixed metallocene layer 39.Wherein, above-mentioned LDPE mixing LLDPE mixed elastomer layer 34, LDPE mixing LLDPE mixed metallocene layer 39 are by making it be mixed into one deck to the effect of the heating of PE pellet, shearing and extruding; The one LDPE mixing LLDPE layer 31, the 2nd LDPE mixing LLDPE layer 32, the 3rd LDPE mixing LLDPE layer 33, the 4th LDPE mixing LLDPE layer 38 are respectively the mixture layers that corresponding bi-material mixes rear become homogeneous.

In the present embodiment, the processing process of co-extrusion PE layer 3 is:

And utilize the fabrication processing of the packaging film of the lamination layer structure in the present embodiment to be:

Claims

1. a high-barrier rice package bag, is made by the lamination layer structure packaging film that is bonded in one, it is characterized in that: described composite bed is from outer extremely interior BOPA layer, the co-extrusion PE layer of comprising successively.

2. high-barrier rice package bag according to claim 1, is characterized in that: described co-extrusion PE layer is the lamination layer structure of nine layers that coextrusion blow forms.

3. high-barrier rice package bag according to claim 1 and 2, is characterized in that: the thickness of described BOPA layer and co-extrusion PE layer is respectively 15 μ m, 100 μ m.

4. high-barrier rice package bag according to claim 1 and 2, is characterized in that: between described BOPA layer and co-extrusion PE layer, by aqueous binder, be bonded in one.

5. high-barrier rice package bag according to claim 3, is characterized in that: between described BOPA layer and co-extrusion PE layer, by aqueous binder, be bonded in one.

6. according to the high-barrier rice package bag described in any one in claim 1,2,5, it is characterized in that: the corona surface of described BOPA layer is provided with the printed layers with packaging article pattern, identification characteristics.

7. high-barrier rice package bag according to claim 3, is characterized in that: the corona surface of described BOPA layer is provided with the printed layers with packaging article pattern, identification characteristics.

8. high-barrier rice package bag according to claim 4, is characterized in that: the corona surface of described BOPA layer is provided with the printed layers with packaging article pattern, identification characteristics.

9. high-barrier rice package bag according to claim 6, is characterized in that: described printed layers is without ketone ink printing layer without benzene.

10. according to the high-barrier rice package bag described in claim 7 or 8, it is characterized in that: described printed layers is without ketone ink printing layer without benzene.