Nylon co-extruded film combined vacuum storage cloth bag and bag body
By using at least 5 layers of nylon coextruded film combined with woven fabric in the vacuum compression bag, the problems of insufficient wear resistance, damage resistance and oxygen barrier properties of the existing vacuum compression bags are solved, and higher tensile breaking strength and sealing properties are achieved.
Patent Information
- Application Number
- CN202421169378.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-05-27
AI Technical Summary
The existing vacuum compression bags have poor wear and fold resistance, are easy to brittle, have poor damage resistance, are generally not very tensile and fracture strength, and are not strong in firmness between the bag body layers, are prone to foaming, have poor peeling strength, and are also poor in oxygen barrier properties.
A nylon coextruded film is used as the inner layer material, and a double-layer structure is formed by coating process by combining the outer layer of the weaving fabric. The nylon coextruded film is at least 5 layers, which enhances the firmness and damage resistance of the bag body.
High barrier properties, high tensile fracture strength and high transparency are achieved, the wear resistance and damage resistance of the bag body are enhanced, the problems of poor bubbles and peel strengths are avoided, and the oxygen barrier properties and sealing properties are improved.
Smart Images
Figure CN222611815U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of vacuum compression bags, in particular to a vacuum storage cloth bag and a bag body combined with a nylon co-extruded film. Background Art
[0002] At present, the vacuum compression bags on the market are mainly made of PA+PE and PET+PE materials bonded and compounded bags, which have poor wear resistance and folding resistance, and are easy to become brittle; the anti-damage performance is poor; there are also vacuum compression bags with better cloth texture, which use PE bonded composite woven fabrics, non-woven fabrics, etc., which generally have low tensile strength, and the layers of the bag are not strong, easy to bubble, poor peel strength, and poor oxygen barrier properties. Utility Model Content
[0003] In view of the problems existing in the prior art, the utility model provides a vacuum storage cloth bag and a bag body combined with a nylon co-extruded film. The inner layer of nylon co-extruded film has high barrier properties, high strength, and high transparency. The outer layer of cloth plays a buffering role, is not easy to be damaged, and is wear-resistant. The inner and outer layers are combined by a laminating process. The double layers are strong, do not bubble, have high tensile breaking performance, and high resistance to damage. The peeling strength is high and the sealing is stronger.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] The vacuum storage cloth bag combined with nylon co-extruded film comprises a bag body with a sealing structure at the bag opening, an air extraction valve is arranged on the bag body, and the bag body is formed by combining a woven fabric outer layer and a nylon co-extruded film inner layer by a laminating process.
[0006] A further improvement is that the nylon co-extruded film is formed by co-extrusion of at least one layer of nylon and multiple layers of PE.
[0007] A further improvement is that the nylon co-extruded film has at least 5 layers.
[0008] In a further improvement, the woven cloth is a fiber woven cloth or a waterproof cloth.
[0009] The utility model also provides a bag body structure. The bag body is formed by combining a woven cloth outer layer and a nylon co-extruded film inner layer by adopting a laminating process. Beneficial Effects
[0010] 1. The main disadvantage of PE film is its poor barrier property to oxygen. The inner layer of this application uses nylon co-extruded film, which is a multi-layer co-extruded nylon and PE composite film with high barrier properties, high tensile strength and high transparency. Compared with single-layer PE film, it has better tensile strength and oxygen barrier properties after being made into bags.
[0011] 2. The inner and outer layers of the bag of the present application are combined by a laminating process. After the woven fabric and nylon co-extruded film are combined, the fastness is stronger, there is no blistering, the peel strength is high, the anti-destruction performance is stronger, and the sealing is stronger. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the bag structure of the utility model;
[0013] Figure 2 This is a schematic diagram of the structure of the vacuum storage bag of the utility model. DETAILED DESCRIPTION
[0014] like Figure 1 As shown, the vacuum storage bag body of the utility model combined with nylon co-extruded film is formed by combining an outer layer of woven fabric 1 and an inner layer of nylon co-extruded film 2 by a laminating process. The woven fabric 1 can be a general fiber woven fabric, or a waterproof cloth with a waterproof outer layer. The nylon co-extruded film 2 is formed by co-extruding at least one layer of nylon and multiple layers of PE, at least 5 layers or more.
[0015] like Figure 2 As shown, the vacuum storage cloth bag combined with nylon co-extruded film includes a bag body with a sealing structure at the bag opening, an air extraction valve is arranged on the bag body, and the bag body is formed by combining an outer layer of woven cloth and an inner layer of nylon co-extruded film by a laminating process.
[0016] The following is a comparison of the mechanical properties of 5-layer nylon co-extruded film and PE film of the same thickness.
[0017]
[0018]
[0019] The following are the experimental performances of bags made of 5-layer nylon co-extruded film and woven fabric laminated film, and bags made of PE and woven fabric with the same thickness.
[0020]
[0021]
[0022] The following is a comparison of the anti-destruction performance of a bag made of 5-layer nylon co-extruded film and woven fabric laminated film with a bag made of PA+PE or PET+PE with the same thickness.
[0023]
[0024] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.
Claims
1. A vacuum storage bag combined with a nylon co-extruded film, comprising a bag body with a sealing structure at the bag opening, and an air extraction valve on the bag body, characterized in that: The bag body is formed by combining an outer layer of woven fabric (1) and an inner layer of nylon co-extruded film (2) by a laminating process.
2. The nylon co-extruded film combined vacuum storage bag according to claim 1, characterized in that: The nylon co-extruded film (2) is formed by co-extrusion of at least one layer of nylon and multiple layers of PE.
3. The nylon co-extruded film combined vacuum storage bag according to claim 1, characterized in that: The nylon co-extruded film (2) has at least 5 layers.
4. The nylon co-extruded film combined vacuum storage bag according to claim 1, characterized in that: The woven cloth (1) is a fiber woven cloth or a waterproof cloth.
5. The vacuum storage bag body combined with nylon co-extruded film is characterized by: The bag body is made of an outer layer of woven fabric and an inner layer of nylon co-extruded film by laminating technology.