Barrier impact-resistant composite film and woven bag

Abstract

The barrier impact-resistant composite film comprises woven cloth, an aluminum foil layer, a first PE (polyethylene) lamination layer, a second PE lamination layer, a nylon film layer, a PET (polyethylene terephthalate) film layer and a CPE (chlorinated polyethylene) film layer, the first PE lamination layer and the second PE lamination layer are respectively arranged on two sides of the woven cloth, the aluminum foil layer is arranged on the first PE lamination layer, the PET film layer is arranged on the aluminum foil layer, and the nylon film layer is arranged on the CPE film layer. The aluminum foil layer is located between the PET film layer and the first PE lamination layer, the nylon film layer is arranged on the second PE lamination layer, the CPE film layer is arranged on the nylon film layer, and the nylon film layer is located between the CPE film layer and the second PE lamination layer. Compared with the prior art, the composite film has the following beneficial effects that the composite film is formed by compounding the woven cloth, the aluminum foil layer, the first PE film layer, the second PE film layer, the nylon film layer, the PET film layer and the CPE film layer, the whole composite film has good barrier property and impact resistance, and meanwhile, due to the fact that the PE film layers are adopted for compounding, the probability of glue failure in the use process is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of packaging material especially relates to a kind of barrier impact-resistant composite film and woven bag. BACKGROUND

[0002] The current woven bag is usually manufactured by using composite film material with good barrier property, and a composite film for making woven bag is disclosed in patent announcement document CN210590900U. The composite film is composed of several layers of plastic film (including PETG film and PE film, etc.) compounded by adhesive. However, the use of adhesive for compounding may cause the problem of adhesive opening during use. UTILITY MODEL CONTENT

[0003] The utility model provides a kind of barrier impact-resistant composite film to solve the above problems, which is composed of woven cloth, aluminum foil layer, first PE film layer, second PE film layer, nylon film layer, PET film layer and CPE film layer. The entire composite film has good barrier property and impact resistance. Since PE film layer is used for compounding, the probability of adhesive opening during use is reduced.

[0004] The technical scheme adopted by the utility model is as follows:

[0005] A kind of barrier impact-resistant composite film, comprising woven cloth, aluminum foil layer, first PE film layer, second PE film layer, nylon film layer, PET film layer and CPE film layer. The first PE film layer and the second PE film layer are respectively arranged on both sides of the woven cloth. The aluminum foil layer is arranged on the first PE film layer. The PET film layer is arranged on the aluminum foil layer. The aluminum foil layer is located between the PET film layer and the first PE film layer. The nylon film layer is arranged on the second PE film layer. The CPE film layer is arranged on the nylon film layer. The nylon film layer is located between the CPE film layer and the second PE film layer.

[0006] In the barrier impact-resistant composite film, woven cloth is used as the main substrate, and the entire composite film has good tensile property and load-bearing capacity. In addition, the first PE film layer and the second PE film layer are arranged on both sides of the woven cloth in the composite film. The aluminum foil layer is compounded by the first PE film layer, and the nylon film layer is compounded by the second PE film layer. This ensures that the aluminum foil layer and the nylon film layer can be firmly attached to both sides of the woven cloth, reducing the probability of adhesive opening during use.

[0007] In addition, in the impact-resistant composite film, the aluminum foil layer and the nylon film layer are compounded on both sides of the woven cloth. The presence of the aluminum foil layer and the nylon film layer endows the entire composite film with good barrier property.

[0008] Meanwhile, the nylon film layer and the CPE film layer are attached to the woven cloth in the impact-resistant composite film, and the existence of the nylon film layer and the CPE film layer makes the entire composite film have good impact resistance.

[0009] In summary, the woven cloth, the aluminum foil layer, the first PE film layer, the second PE film layer, the nylon film layer, the PET film layer, and the CPE film layer are combined to form the composite film, the entire composite film has good barrier property and impact resistance, and the use of the PE film layer for combination reduces the probability of glue opening during use.

[0010] Optionally, the thickness of the first PE film layer is 15um, and the thickness of the second PE film layer is 15um.

[0011] Optionally, the thickness of the woven cloth is 85um.

[0012] Optionally, the thickness of the aluminum foil layer is 7um.

[0013] Optionally, the thickness of the nylon film layer is 15um.

[0014] Optionally, the thickness of the PET film layer is 15um.

[0015] Optionally, the thickness of the CPE film layer is 60um.

[0016] A woven bag comprises the barrier impact-resistant composite film as described above.

[0017] The woven bag is prepared by using the composite film as described above, and after being prepared into a woven bag, the PET film layer in the composite film is located at the outermost side of the woven bag, and the CPE film layer is located at the innermost side of the woven bag, and when the bag is prepared, the CPE film layer is used for heat sealing and bonding.

[0018] The woven cloth, the aluminum foil layer, the first PE film layer, the second PE film layer, the nylon film layer, the PET film layer, and the CPE film layer are combined to form the composite film, the entire composite film has good barrier property and impact resistance, and the use of the PE film layer for combination reduces the probability of glue opening during use. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below only constitute some embodiments of the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0020] Figure 1 is a structural schematic diagram of the barrier impact-resistant composite film.

[0021] The various reference signs in the drawings are as follows: 101, PET film layer; 102, aluminum foil layer; 103, first PE laminated film layer; 104, woven cloth; 105, second PE laminated film layer; 106, nylon film layer; 107, CPE film layer. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings.

[0023] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced without the specific details, other than those described herein, and it is understood that the present application will encompass a variety of implementations beyond those described herein. Accordingly, the present application is not limited to the embodiments described herein, but rather, the scope of the present application is to be given the broadest interpretation of the appended claims to which the inventors are entitled.

[0024] In the description of the present application, it should be noted that the terms used herein are only for the purpose of describing the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn in proportion to the actual proportions. The techniques, methods and devices known to those skilled in the art can not be discussed in detail, but in appropriate cases, the techniques, methods and devices should be considered as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0025] Example 1

[0026] As shown in the accompanying drawings Figure 1As shown, a kind of barrier impact-resistant composite film, including woven cloth 104, aluminum foil layer 102, first PE film layer 103, second PE film layer 105, nylon film layer 106, PET film layer 101 and CPE film layer 107, first PE film layer 103 and second PE film layer 105 are respectively arranged on the two sides of woven cloth 104, aluminum foil layer 102 is arranged on first PE film layer 103, PET film layer 101 is arranged on aluminum foil layer 102, aluminum foil layer 102 is between PET film layer 101 and first PE film layer 103, nylon film layer 106 is arranged on second PE film layer 105, CPE film layer 107 is arranged on nylon film layer 106, nylon film layer 106 is between CPE film layer 107 and second PE film layer 105.

[0027] In the barrier impact-resistant composite film, woven cloth 104 is used as the main substrate, and the entire composite film has good tensile and load-bearing properties. Meanwhile, first PE film layer 103 and second PE film layer 105 are arranged on the two sides of woven cloth 104 in the composite film, first PE film layer 103 is used to composite aluminum foil layer 102, and second PE film layer 105 is used to composite nylon film layer 106, so that aluminum foil layer 102 and nylon film layer 106 can be firmly attached to the two sides of woven cloth 104, reducing the probability of opening in use.

[0028] Meanwhile, in the impact-resistant composite film, aluminum foil layer 102 and nylon film layer 106 are compounded on the two sides of woven cloth 104, and the presence of aluminum foil layer 102 and nylon film layer 106 gives the entire composite film good barrier properties.

[0029] Meanwhile, in the impact-resistant composite film, nylon film layer 106 and CPE (chlorinated polyethylene) film layer are attached to woven cloth 104, and the presence of nylon film layer 106 and CPE film layer 107 makes the entire composite film have good impact resistance. Meanwhile, PET film layer 101 is compounded in the composite film, and when PET film layer 101 is used as a printing layer, it can ensure that the printed pattern has good clarity and durability.

[0030] In summary, in the composite film, woven cloth 104, aluminum foil layer 102, first PE film layer 103, second PE film layer 105, nylon film layer 106, PET film layer 101 and CPE film layer 107 are compounded, the entire composite film has good barrier properties and impact resistance, and the use of PE film layer for compounding reduces the probability of opening in use.

[0031] As shown in the accompanying drawings Figure 1 The thickness of first PE film layer 103 is 15um, and the thickness of second PE film layer 105 is 15um.

[0032] As shown in the attached Figure 1 The thickness of the woven cloth 104 is 85um.

[0033] As shown in the attached Figure 1 The thickness of the aluminum foil layer 102 is 7um.

[0034] As shown in the attached Figure 1 The thickness of the nylon film layer 106 is 15um.

[0035] As shown in the attached Figure 1 The thickness of the PET film layer 101 is 15um.

[0036] As shown in the attached Figure 1 The thickness of the CPE film layer 107 is 60um.

[0037] The CPE film layer 107 in the composite film is used as a heat-seal adhesive layer.

[0038] Example 2

[0039] A woven bag is prepared by using the composite film as shown in Example 1. After the woven bag is prepared, the PET film layer in the composite film is located at the outermost side of the woven bag, and the CPE film layer is located at the innermost side of the woven bag. When the bag is prepared, the CPE film layer is used for heat-seal adhesive.

[0040] The above-described embodiments only express some embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the patent of the present application. It should be noted that for those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A barrier impact resistant composite film characterized by, The barrier impact-resistant composite film comprises a woven cloth, an aluminum foil layer, a first PE film layer, a second PE film layer, a nylon film layer, a PET film layer and a CPE film layer, the first PE film layer and the second PE film layer are respectively arranged on two sides of the woven cloth, the aluminum foil layer is arranged on the first PE film layer, the PET film layer is arranged on the aluminum foil layer, the aluminum foil layer is located between the PET film layer and the first PE film layer, the nylon film layer is arranged on the second PE film layer, and the CPE film layer is arranged on the nylon film layer.

2. The barrier impact-resistant composite film according to claim 1, wherein, The thickness of the first PE film layer is 15 um, and the thickness of the second PE film layer is 15 um.

3. The barrier impact-resistant composite film according to claim 1, wherein, The thickness of the woven cloth is 85 um.

4. The barrier impact-resistant composite film according to claim 1, wherein, The thickness of the aluminum foil layer is 7 um.

5. The barrier impact-resistant composite film according to claim 1, wherein The thickness of the nylon film layer is 15 um.

6. The barrier impact-resistant composite film according to claim 1, wherein, The thickness of the PET film layer is 15 um.

7. The barrier impact-resistant composite film according to claim 1, wherein The thickness of the CPE film layer is 60 um.

8. A woven bag characterized by The barrier impact-resistant composite film comprises the barrier impact-resistant composite film according to any one of claims 1-7.

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