CN212422420U

CN212422420U - Composite heavy packaging film

Info

Publication number: CN212422420U
Application number: CN202020987776.8U
Authority: CN
Inventors: 黄成旦; 钟冬雄; 苏正泽; 范继猛
Original assignee: Shandong Wantai Printing Co ltd
Current assignee: Shandong Wantai Printing Co ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2021-01-29
Anticipated expiration: 2030-06-03

Abstract

The utility model discloses a compound heavy packaging film, including basic unit, PVDC layer, PET membrane, three-layer crowded polyethylene layer altogether, the fixed transparent stratum reticulare of first dacron that is equipped with in the basic unit, the fixed PVDC layer that is equipped with on the transparent stratum reticulare of first dacron, the fixed PET membrane that is equipped with under the basic unit, the fixed transparent stratum reticulare of second dacron that is equipped with under the PET membrane. Has the advantages that: the wear resistance of increase surface that can be great to increase through setting up first transparent nylon stratum reticulare and the resistant ability of dragging of increase that second nylon stratum reticulare can be great, difficult damage, and the internal surface is provided with the dull polish layer, can increase sticky firmness, make the repackaging film difficult emergence phenomenon of coming unstuck when using sticky the sealing, and be provided with first transparent nylon piece, the transparent nylon piece of second and transparent nylon rope can make difficult separation between each layer.

Description

Composite heavy packaging film

Technical Field

The utility model relates to a composite packaging film field particularly, relates to a composite heavy packaging film.

Background

Packaging films capable of carrying 10kg to 50kg of solid particulate or powdery material are generally referred to as heavy packaging films at present. The heavy packaging film is mainly used for packaging plastic raw materials, fertilizers, feeds, rice, soybeans, grains and the like. The packaging bag comprises a PP (polypropylene) woven bag, a paper bag and a co-extrusion PE (polyethylene) heavy packaging bag, and the traditional packaging forms with the above packages as main bodies still occupy the leading position in the domestic market.

The existing heavy packaging film has poor wear resistance on the outer surface and low tearing resistance, so that the packaging film is frequently worn during transportation, and the inner layer of the heavy packaging film is smooth, so that the phenomenon of degumming is frequently caused when the heavy packaging film needs to be sealed by using glue.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compound heavy packaging film to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a compound heavy packaging film includes basic unit, PVDC layer, PET membrane, three-layer crowded polyethylene layer altogether, the fixed transparent stratum reticulare of first dacron that is equipped with in the basic unit, the fixed PVDC layer that is equipped with on the transparent stratum reticulare of first dacron, the fixed PET membrane that is equipped with under the basic unit, the fixed transparent stratum reticulare of second dacron that is equipped with under the transparent stratum reticulare of second dacron, the fixed three-layer crowded polyethylene layer altogether that is equipped with under the transparent stratum reticulare of second dacron, three-layer crowded polyethylene layer lower surface is equipped with the dull polish layer altogether, a plurality of first cavitys have been seted up to equidistant in the PVDC layer, a plurality of second cavitys have been seted up to equidistant in the three-layer crowded polyethylene layer altogether, just first cavity with second cavity phase-match, the fixed first transparent nylon sheet that is equipped with in the first cavity, the fixed second transparent nylon sheet that is equipped with the correspondence the fixed transparent nylon rope that is equipped with between the transparent nylon sheet of second, The base layer, the PET film and the second transparent terylene mesh layer.

Further, the base layer is a polypropylene cast film.

Further, the base layer and the first transparent terylene mesh layer are fixed in a hot pressing mode.

Further, the first transparent terylene mesh layer is fixedly connected with the PVDC layer through a first bonding layer.

Further, the base layer and the PET film are fixedly connected through a second adhesive layer.

Further, the PET film and the second transparent terylene mesh layer are fixedly connected through a third bonding layer.

Further, the second transparent terylene mesh layer is fixedly connected with the three co-extruded polyethylene layers in a hot pressing mode.

Further, the first adhesive layer, the second adhesive layer and the third adhesive layer are all silicone adhesives.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the utility model discloses a set up the basic unit, the PVDC layer, the PET membrane, the three-layer is polyethylene layer altogether, the wear resistance of increase surface that can be great, and through setting up the resistant ability of dragging of increase that first transparent nylon stratum reticulare and second nylon stratum reticulare can be great, difficult damage, and the internal surface is provided with the dull polish layer, can increase sticky firmness, make heavy packing membrane difficult emergence phenomenon of coming unstuck when using sticky the sealing, and be provided with first transparent nylon piece, second transparent nylon piece and transparent nylon rope can make difficult separation between each layer, thereby guarantee its holistic fastness and resistant the nature of dragging.

(2) The utility model discloses a set up the basic unit, can increase the transparency and the glossiness of packaging film.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a composite heavy packaging film according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a first transparent polyester mesh layer in a composite heavy packaging film according to an embodiment of the present invention.

Reference numerals:

1. a base layer; 2. a first polyester transparent mesh layer; 3. a PVDC layer; 4. a second adhesive layer; 5. a third adhesive layer; 6. a PET film; 7. a second transparent terylene mesh layer; 8. three co-extruded polyethylene layers; 9. sanding layer; 10. a first cavity; 11. a second cavity; 12. a first transparent nylon sheet; 13. a second transparent nylon sheet; 14. a transparent nylon cord; 15. a first adhesive layer.

Detailed Description

The following, with reference to the drawings and the detailed description, further description of the present invention is made:

the first embodiment is as follows:

referring to fig. 1-2, a composite heavy packaging film according to an embodiment of the present invention includes a base layer 1, a PVDC layer 3, a PET film 6, and a three-layer co-extruded polyethylene layer 8, wherein a first transparent polyester mesh layer 2 is fixedly disposed on the base layer 1, the PVDC layer 3 is fixedly disposed on the first transparent polyester mesh layer 2, the PET film 6 is fixedly disposed under the base layer 1, a second transparent polyester mesh layer 7 is fixedly disposed under the PET film 6, a three-layer co-extruded polyethylene layer 8 is fixedly disposed under the second transparent polyester mesh layer 7, a frosted layer 9 is disposed on a lower surface of the three-layer co-extruded polyethylene layer 8, a plurality of first cavities 10 are disposed at equal intervals in the PVDC layer 3, a plurality of second cavities 11 are disposed at equal intervals in the three-layer co-extruded polyethylene layer 8, the first cavities 10 are matched with the second cavities 11, a first transparent nylon sheet 12 is fixedly disposed in the first cavities 10, a second transparent nylon sheet 13 is fixedly arranged in the second cavity 11, a transparent nylon rope 14 is fixedly arranged between the first transparent nylon sheet 12 and the corresponding second transparent nylon sheet 13, and the transparent nylon rope 14 penetrates through the first transparent terylene mesh layer 2, the base layer 1, the PET film 6 and the second transparent terylene mesh layer 7.

Through the above technical scheme of the utility model, the wear resistance of increase surface that can be great, and through setting up the resistant ability of pulling of increase that first dacron transparent network layer 2 and second dacron transparent network layer 7 can be great, difficult damage, and the internal surface is provided with dull polish layer 9, can increase sticky firmness, make heavy packaging film difficult emergence phenomenon of coming unstuck when using sticky the sealing, and be provided with first transparent nylon piece 12, second transparent nylon piece 13 and transparent nylon rope 14 can make difficult separation between each layer, thereby guarantee its holistic fastness and resistant nature of pulling.

Example two:

referring to fig. 1, for a substrate 1, the substrate 1 is a polypropylene cast film; for the base layer 1, the base layer 1 and the first transparent terylene mesh layer 2 are fixed in a hot pressing mode; for the first terylene transparent net layer 2, the first terylene transparent net layer 2 and the PVDC layer 3 are fixedly connected through a first bonding layer 15; for the base layer 1, the base layer 1 and the PET film 6 are fixedly connected through a second adhesive layer 4; for the PET film 6, the PET film 6 and the second terylene transparent net layer 7 are fixedly connected through a third adhesive layer 5; for the second transparent terylene mesh layer 7, the second transparent terylene mesh layer 7 is fixedly connected with the three co-extruded polyethylene layers 8 in a hot pressing mode; for the first adhesive layer 15, the second adhesive layer 4, and the third adhesive layer 5, the first adhesive layer 15, the second adhesive layer 4, and the third adhesive layer 5 are all silicone adhesives.

Through the above technical scheme of the utility model, fix first transparent polyester mesh layer 2 hot pressing on basic unit 1 and fix transparent polyester mesh layer 7 hot pressing on three-layer crowded polyethylene layer 8 with the resistant performance of dragging that not only can increase basic unit 1 and three-layer crowded polyethylene layer 8 altogether, and can make their surface become unsmooth adhesion that is favorable to gluing, the organosilicon adhesive has high temperature resistance, be difficult for ageing, the free from extraneous odour, polypropylene casting film can increase the transparency and the glossiness of packaging film, and polypropylene casting film has that production speed is fast, high output, the advantage that thickness homogeneity is good.

For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.

In practical application, the PET film 6 has excellent physical properties, chemical properties and dimensional stability, transparency, recoverability, the PVDC layer 3 is a separation nature height, toughness is strong and low temperature heat sealing, the ideal packaging material that thermal shrinkage and chemical stability are good, the wear resistance of increase surface that can be great, and through setting up the resistant ability of dragging of increase that first dacron transparent net layer 2 and second dacron transparent net layer 7 can be great, difficult damage, and the internal surface is provided with dull polish layer 9, can increase sticky firmness, make heavy packaging film be difficult for taking place the phenomenon of coming unstuck when using sticky seal, and be provided with first transparent nylon sheet 12, second transparent nylon sheet 13 and each layer transparent nylon rope 14 can make difficult separation between the feasible, thereby guarantee its holistic fastness and resistance to dragging, fix the hot pressing of first dacron transparent net layer 2 on basic unit 1 and fix the second dacron transparent net layer 7 on three-layer crowded polyethylene altogether Can not only increase basic unit 1 and three-layer crowded polyethylene layer 8 altogether on the alkene layer 8 and tear resistance ability, can make their surface become unsmooth adhesion that is favorable to gluing moreover, the organosilicon adhesive has high temperature resistance, is difficult for ageing, and the peculiar smell is not had, and the polypropylene casting film can increase the transparency and the glossiness of packaging film, and the polypropylene casting film has that production speed is fast moreover, output is high, the good advantage of thickness homogeneity.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The composite heavy packaging film is characterized by comprising a base layer (1), a PVDC layer (3), a PET film (6) and a three-layer co-extrusion polyethylene layer (8), wherein a first polyester transparent net layer (2) is fixedly arranged on the base layer (1), the PVDC layer (3) is fixedly arranged on the first polyester transparent net layer (2), the PET film (6) is fixedly arranged under the base layer (1), a second polyester transparent net layer (7) is fixedly arranged under the PET film (6), the three-layer co-extrusion polyethylene layer (8) is fixedly arranged under the second polyester transparent net layer (7), a frosted layer (9) is arranged on the lower surface of the three-layer co-extrusion polyethylene layer (8), a plurality of first cavities (10) are formed in the PVDC layer (3) at equal intervals, a plurality of second cavities (11) are formed in the three-layer co-extrusion polyethylene layer (8) at equal intervals, and the first cavities (10) are matched with the second cavities (11), the PET film comprises a first cavity (10), a second cavity (11), a first transparent nylon sheet (12), a second transparent nylon sheet (13), a transparent nylon rope (14), a PET film (6) and a second transparent nylon net layer (7), wherein the first transparent nylon sheet (12) is fixedly arranged in the first cavity (10), the second transparent nylon sheet (13) is fixedly arranged in the second cavity (11), and the transparent nylon rope (14) penetrates through the first transparent polyester net layer (2), the base layer (1), the PET film (6) and the second transparent polyester net layer (7).

2. A composite heavy packaging film according to claim 1, wherein said base layer (1) is a cast polypropylene film.

3. The composite heavy packaging film as claimed in claim 2, wherein the base layer (1) and the first transparent terylene web layer (2) are fixed by means of hot pressing.

4. A composite repackaging film according to claim 3, wherein said first transparent Dacron web layer (2) is fixedly connected to said PVDC layer (3) by a first adhesive layer (15).

5. A composite repackaging film according to claim 4, wherein said base layer (1) is fixedly connected to said PET film (6) by means of a second adhesive layer (4).

6. The composite heavy packaging film as claimed in claim 5, wherein the PET film (6) and the second terylene transparent net layer (7) are fixedly connected through a third adhesive layer (5).

7. The composite heavy packaging film as claimed in claim 6, wherein the second transparent terylene web layer (7) and the three co-extruded polyethylene layers (8) are fixedly connected by means of hot pressing.

8. A composite repackaging film according to claim 7, wherein said first adhesive layer (15), said second adhesive layer (4) and said third adhesive layer (5) are all silicone adhesives.