CN212194578U

CN212194578U - BOPP packaging film with high strength and flame retardant property

Info

Publication number: CN212194578U
Application number: CN202020546035.6U
Authority: CN
Inventors: 胡筑平; 方鹏
Original assignee: Tianjin Huaheng Packaging Materials Co ltd
Current assignee: Tianjin Huaheng Packaging Materials Co ltd
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2020-12-22
Anticipated expiration: 2030-04-14

Abstract

The utility model discloses a BOPP packaging film who has high strength and fire behaviour, concretely relates to BOPP packaging film technique field, including the sandwich layer, sandwich layer top fixedly connected with intermediate layer, the fire-retardant layer of intermediate layer top fixedly connected with, fire-retardant layer top fixedly connected with insulating layer, insulating layer top fixedly connected with protective layer, the sandwich layer includes two polypropylene layers, two polypropylene layer stretch forming opposite direction. The utility model discloses a setting is by two polypropylene layer opposite direction stretch forming's sandwich layer to and by first enhancement layer, waterproof layer, second enhancement layer, fire-retardant layer, insulating layer and the protective layer that sets gradually from inside to outside, make the utility model discloses have better intensity, can effectively deal with various tensile, impale and impact, still have better waterproof, fire prevention and thermal-insulated fire behavior simultaneously, the function is comparatively multiple, and performance is comparatively stable, and is stronger to the protective capacities of packing article.

Description

BOPP packaging film with high strength and flame retardant property

Technical Field

The utility model relates to a BOPP packaging film technical field, concretely relates to BOPP packaging film who has high strength and flame retardant property concurrently.

Background

The production of BOPP films is to make a sheet or a thick film from a melt of high molecular polypropylene by a long and narrow head, then stretch the sheet or the thick film in two perpendicular directions (longitudinal and transverse directions) simultaneously or step by step in a special stretching machine at a certain temperature and a set speed, and then form a film through proper cooling or heat treatment or special processing (such as corona, coating, etc.).

Therefore, it is necessary to develop a BOPP packaging film having both high strength and flame retardant properties to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a BOPP packaging film who has high strength and fire behaviour concurrently, through setting up by two polypropylene layer opposite direction stretch forming's sandwich layer, and by the first enhancement layer that sets gradually from inside to outside, the waterproof layer, the second enhancement layer, fire-retardant layer, insulating layer and protective layer, make the utility model discloses better intensity has, can effectively deal with various tensile, impale and strike, still has better waterproof, fire prevention and thermal-insulated fire behavior simultaneously, and the function is comparatively multiple, and performance is comparatively stable, and the protective capacities to packing article are stronger to solving among the prior art BOPP packaging film self intensity limited, and self fire-retardant thermal-insulated and waterproof isosexual ability is more weak, as the comparatively limited problem of packing to packing article protective capacities.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: the utility model provides a BOPP packaging film that has both high strength and fire behaviour, includes the sandwich layer, sandwich layer top fixedly connected with intermediate layer, the fire-retardant layer of intermediate layer top fixedly connected with, fire-retardant layer top fixedly connected with insulating layer, insulating layer top fixedly connected with protective layer.

Further, the core layer comprises two polypropylene layers, and the stretching forming directions of the two polypropylene layers are opposite.

Further, the interlayer comprises a first reinforcing layer, a waterproof layer and a second reinforcing layer, the first reinforcing layer and the second reinforcing layer are respectively located on two sides of the waterproof layer, and the first reinforcing layer is located on the top of the core layer.

Further, the first reinforcing layer and the second reinforcing layer are both made of a fiberglass material.

Further, the waterproof layer is made of a polyurethane material.

Further, the flame retardant layer is made of a halogen free flame retardant PUR material.

Further, the thermal insulation layer is made of LLDPE material.

Further, the protective layer is made of FEP material.

The embodiment of the utility model provides a have following advantage:

the utility model discloses a setting is by two polypropylene layer opposite direction stretch forming's sandwich layer to and by first enhancement layer, waterproof layer, second enhancement layer, fire-retardant layer, insulating layer and the protective layer that sets gradually from inside to outside, make the utility model discloses have better intensity, can effectively deal with various tensile, impale and strike, still have better waterproof, fire prevention and thermal-insulated fire behavior simultaneously, the function is comparatively multiple, and performance is comparatively stable, compares with prior art, can be better protect packing article, and the practicality is stronger, and life is longer.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic view of the overall structure provided by the present invention;

fig. 2 is a front view cross-sectional view provided by the present invention;

in the figure: 1 core layer, 11 polypropylene layers, 2 interlayers, 21 first reinforcing layers, 22 waterproof layers, 23 second reinforcing layers, 3 flame-retardant layers, 4 heat-insulating layers and 5 protective layers.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to the attached drawings 1-2 of the specification, the BOPP packaging film with high strength and flame retardant property comprises a core layer 1, wherein an interlayer 2 is fixedly connected to the top of the core layer 1, a flame retardant layer 3 is fixedly connected to the top of the interlayer 2, a heat insulation layer 4 is fixedly connected to the top of the flame retardant layer 3, and a protective layer 5 is fixedly connected to the top of the heat insulation layer 4;

further, the core layer 1 comprises two polypropylene layers 11, and the two polypropylene layers 11 have opposite stretch forming directions, which is beneficial to improving the tensile strength of the core layer 1, thereby improving the self strength of the utility model;

further, the interlayer 2 comprises a first reinforcing layer 21, a waterproof layer 22 and a second reinforcing layer 23, the first reinforcing layer 21 and the second reinforcing layer 23 are respectively positioned on two sides of the waterproof layer 22, and the first reinforcing layer 21 is positioned on the top of the core layer 1;

furthermore, the first reinforcing layer 21 and the second reinforcing layer 23 are both made of glass fiber materials, so that the strength of the utility model is further improved;

furthermore, the waterproof layer 22 is made of polyurethane material, so that the waterproof capability of the utility model is improved;

furthermore, the flame-retardant layer 3 is made of a halogen-free flame-retardant PUR material, and the halogen-free flame-retardant PUR material has better flame-retardant performance;

further, the heat insulation layer 4 is made of LLDPE (linear low-density polyethylene) material, and the LLDPE material has high heat resistance, and simultaneously has good impact resistance, puncture resistance and the like;

further, the protective layer 5 is made by FEP material, and FEP material has better corrosion resistance and antifriction ability to be of value to promoting the utility model discloses a life.

The implementation scenario is specifically as follows: in the practical use of the utility model, the two polypropylene layers 11 are mutually reversely stretched and formed as the core layer 1, which effectively ensures the basic strength of the utility model, and the first reinforcing layer 21 and the second reinforcing layer 23 made of glass fiber can effectively further improve the self strength of the utility model, and simultaneously the glass fiber itself also has better flame-retardant and heat-insulating properties, and the waterproof layer 22 made of polyurethane material can improve the waterproof ability of the utility model, further improve the utility model, the use is more reliable, and the flame-retardant layer 3 made of halogen-free flame-retardant PUR material and the heat-insulating layer 4 made of LLDPE material can effectively further improve the flame-retardant and heat-insulating ability of the utility model, and the protective layer 5 made of final FEP material can effectively improve the corrosion resistance and friction resistance of the utility model, thereby further improving the utility model and reliability, through setting up by 11 opposite direction stretch-formed's on two polypropylene layers sandwich layer 1, and by the first enhancement layer 21 that sets gradually from inside to outside, waterproof layer 22, second enhancement layer 23, fire-retardant layer 3, insulating layer 4 and protective layer 5, make the utility model discloses have better intensity, can effectively deal with various tensile, impale and strike, still have better waterproof simultaneously, fire prevention and thermal-insulated fire behavior, the function is comparatively complete, performance is comparatively stable, can be better protect packing article, the practicality is stronger, long service life, this embodiment has specifically solved among the prior art BOPP packaging film self intensity limited, and self fire-retardant thermal-insulated and waterproof ability is more weak, as the comparatively limited problem of packing article protective capability.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A BOPP packaging film with both high strength and flame retardant properties, comprising a core layer (1), characterized in that: the fireproof heat-insulating layer is characterized in that an interlayer (2) is fixedly connected to the top of the core layer (1), a flame-retardant layer (3) is fixedly connected to the top of the interlayer (2), a heat-insulating layer (4) is fixedly connected to the top of the flame-retardant layer (3), and a protective layer (5) is fixedly connected to the top of the heat-insulating layer (4).

2. The BOPP packaging film with high strength and flame retardant properties as claimed in claim 1, wherein: the core layer (1) comprises two polypropylene layers (11), and the stretching forming directions of the two polypropylene layers (11) are opposite.

3. The BOPP packaging film with high strength and flame retardant properties as claimed in claim 1, wherein: the sandwich layer (2) comprises a first reinforcing layer (21), a waterproof layer (22) and a second reinforcing layer (23), wherein the first reinforcing layer (21) and the second reinforcing layer (23) are respectively positioned on two sides of the waterproof layer (22), and the first reinforcing layer (21) is positioned on the top of the core layer (1).

4. A BOPP packaging film with both high strength and flame retardant properties as claimed in claim 3, wherein: the first reinforcing layer (21) and the second reinforcing layer (23) are both made of a glass fiber material.

5. A BOPP packaging film with both high strength and flame retardant properties as claimed in claim 3, wherein: the waterproof layer (22) is made of a polyurethane material.

6. The BOPP packaging film with high strength and flame retardant properties as claimed in claim 1, wherein: the flame-retardant layer (3) is made of a halogen-free flame-retardant PUR material.

7. The BOPP packaging film with high strength and flame retardant properties as claimed in claim 1, wherein: the heat insulation layer (4) is made of LLDPE material.

8. The BOPP packaging film with high strength and flame retardant properties as claimed in claim 1, wherein: the protective layer (5) is made of FEP material.