Winding film for product packaging

Abstract

The utility model belongs to the technical field of wrapping films, and particularly relates to a wrapping film for product packaging. The winding film body is wound outside the winding cylinder, and the winding film body comprises a base layer; the outer protective layer comprises a wear-resistant layer and a PET film layer, and the outer surface of the wear-resistant layer is connected with the inner surface of the PET film layer; the inner protective layer comprises a tear-resistant layer and a puncture-resistant layer, and the inner surface of the tear-resistant layer is connected with the outer surface of the puncture-resistant layer; wherein the outer protective layer is arranged on the outer surface of the base layer, and the inner protective layer is arranged on the inner surface of the base layer. The wrapping film has the beneficial effects that the wrapping film body is composed of the base layer, the outer protection layer and the inner protection layer, the wear resistance and protection performance of the wrapping film can be improved through the outer protection layer, the tear resistance and puncture resistance of the wrapping film can be improved through the inner protection layer, the wrapping film is prevented from being torn due to external force in the packaging process, and the service life of the wrapping film is prolonged. Sharp objects are prevented from puncturing the wrapping film, and the safety of a packaged product is protected.

Description

Technical Field

[0001] The present application belongs to the technical field of stretch films, and in particular, relates to a stretch film for product packaging. Background Art

[0002] Stretch film, also known as stretch film or heat shrink film, is usually wrapped on the outside of the packaging box during the product packaging process to achieve the purpose of waterproofing, dustproofing, and scratch-proofing, thereby ensuring that the product is safer during handling, loading, and transportation, and improving the product's transportation efficiency.

[0003] The patent with publication number CN219338856U discloses a moisture-proof insulating wrapping film, including a wrapping film base layer, a mesh cloth layer is fixedly connected to the top of the wrapping film base layer, a moisture-proof layer is fixedly connected to the top of the mesh cloth layer, a wear-resistant layer is fixedly connected to the top of the moisture-proof layer, an adhesive layer is fixedly connected to the bottom of the wrapping film base layer, a flame-retardant layer is fixedly connected to the bottom of the adhesive layer, an insulating layer is fixedly connected to the bottom of the flame-retardant layer, the insulating layer is a polyimide film layer, the flame-retardant layer is a polyvinylidene chloride film layer, the moisture-proof layer is a polyperfluoroethylene propylene film layer, the thickness of the insulating layer is 10-20μm, and the thickness of the flame-retardant layer is 15-30μm.

[0004] The above patent can improve the moisture-proof and insulating properties of the wrapping film by using a wrapping film base layer, a mesh cloth layer, a moisture-proof layer, a wear-resistant layer, an adhesion layer, a flame-retardant layer, an insulating layer and a reinforcement layer in combination. However, there are still problems of insufficient tensile strength and easy tearing during use, which need to be improved. Utility Model Content

[0005] The purpose of this application is to provide a stretch film for product packaging that can solve the above problems.

[0006] The purpose of this application is to provide a stretch film for product packaging, comprising:

[0007] winding drum;

[0008] The wrapping film body is wound outside the wrapping drum, and the wrapping film body includes:

[0009] Grassroots;

[0010] An outer protective layer, comprising a wear-resistant layer and a PET film layer, wherein the outer surface of the wear-resistant layer is connected to the inner surface of the PET film layer;

[0011] An inner protective layer, comprising a tear-resistant layer and a puncture-resistant layer, wherein the inner surface of the tear-resistant layer is connected to the outer surface of the puncture-resistant layer;

[0012] Wherein, the outer protective layer is arranged on the outer surface of the base layer, and the inner protective layer is arranged on the inner surface of the base layer.

[0013] The above-mentioned wrapping film for product packaging can be used to support and store the wrapping film body through the setting of the wrapping tube, so that the wrapping film can be easily wound and unfolded. The wrapping film body is composed of a base layer, an outer protective layer and an inner protective layer. The outer protective layer includes a wear-resistant layer and a PET film layer. The setting of the wear-resistant layer can improve the wear resistance of the wrapping film, so that it is not easy to be worn during packaging and transportation. The PET film layer has excellent strength, transparency and heat resistance, which can further enhance the protective performance of the wrapping film. The outer surface of the wear-resistant layer is connected to the inner surface of the PET film layer to form a tight outer protective structure. The inner protective layer includes a tear-resistant layer and a puncture-resistant layer. The setting of the tear-resistant layer can improve the tear resistance of the wrapping film and prevent it from being torn due to external force during the packaging process. The puncture-resistant layer can prevent sharp objects from piercing the wrapping film and protect the safety of the packaged product.

[0014] Furthermore, the base layer is made of polyethylene material, and the base layer, the inner protective layer and the outer protective layer are formed by hot pressing.

[0015] The base layer is made of polyethylene, an important thermoplastic with excellent mechanical properties, chemical stability and processing properties. It can not only provide the necessary strength and toughness, but also be easily processed and formed, making it suitable as the base material of the stretch film. In addition, the base layer, the inner protective layer and the outer protective layer are connected together by hot pressing, which not only ensures the close connection between the layers and prevents separation or falling off during use, but also makes the entire stretch film have better integrity and durability.

[0016] Furthermore: the wear-resistant layer is made of polyphenylene sulfide material, the tear-resistant layer is made of glass fiber material, and the puncture-resistant layer is made of acrylic material.

[0017] The wear-resistant layer is made of polyphenylene sulfide material, the tear-resistant layer is made of glass fiber material, and the puncture-resistant layer is made of acrylic material. Polyphenylene sulfide (PPS) is a high-performance thermoplastic resin with excellent heat resistance, flame retardancy and chemical stability. As the main material of the wear-resistant layer, PPS can effectively resist external friction and wear, thereby extending the service life of the wrapping film. Secondly, glass fiber is a new inorganic non-metallic material with high strength, high modulus, temperature resistance, and corrosion resistance. As the main material of the tear-resistant layer, glass fiber can significantly improve the tear resistance of the wrapping film and prevent it from being torn due to external forces during the packaging process. Finally, acrylic acid is an organic compound with active chemical properties and good processing properties. As the main material of the puncture-resistant layer, acrylic acid can enhance the puncture resistance of the wrapping film, prevent sharp objects from piercing the wrapping film, and protect the safety of the packaged products.

[0018] By combining these three high-performance materials, the packaging stretch film can not only have excellent wear resistance, tear resistance and puncture resistance, but also have good heat resistance, chemical stability and processing performance.

[0019] Furthermore, the wrapping film body is provided with a discontinuous line, which is composed of a plurality of evenly arranged tearing openings, and the tearing openings are in strip shape.

[0020] By setting the intermittent lines on the packaging stretch film body, the setting of the intermittent lines allows the stretch film to be easily torn when needed, thereby adjusting or terminating the wrapping length of the stretch film, effectively simplifying the operation during the packaging process and improving work efficiency. The tearing openings are evenly arranged and strip-shaped, which can ensure the stability and continuity of the tearing process. The user can easily tear the stretch film along the tearing openings, effectively avoiding uneven tearing or accidental breakage. In addition, setting the tearing openings in strips can avoid damaging the overall structure of the stretch film to a certain extent.

[0021] Furthermore, a tear strip is provided on the non-winding end of the winding film body.

[0022] The presence of the tear strip allows users to easily find the non-wrap end when using it for the first time. The wrapping film can be easily pulled by pulling the tear strip without having to find where the non-wrap end of the wrapping film is, thereby simplifying the operation process and improving work efficiency.

[0023] Furthermore, a support tube is arranged inside the winding tube, and a plurality of reinforcing ribs are arranged between the support tube and the winding tube.

[0024] The provision of the support tube can significantly enhance the supporting capacity of the winding drum, maintain the shape of the winding drum stable, and prevent it from deformation or damage. The configuration of the reinforcing ribs further strengthens the connection and support between the support tube and the winding drum. The reinforcing ribs are evenly distributed along the gap between the support tube and the winding drum, tightly connecting the support tube and the winding drum together to form a stable overall structure that can disperse the pressure and stress from the winding of the stretch film, thereby improving its overall durability and load-bearing capacity.

[0025] The beneficial effects of this application are:

[0026] 1. The stretch film body consists of a base layer, an outer protective layer and an inner protective layer. The outer protective layer can improve the wear resistance and protection performance of the stretch film, and the inner protective layer can improve the tear resistance and puncture resistance of the stretch film, prevent tearing due to external forces during the packaging process, prevent sharp objects from piercing the stretch film, and protect the safety of the packaged products;

[0027] 2. By setting the intermittent line on the packaging stretch film body, the stretch film can be easily torn when needed, so as to adjust or terminate the wrapping length of the stretch film, effectively simplifying the operation in the packaging process and improving work efficiency;

[0028] 3. The setting of the support tube can significantly enhance the supporting capacity of the winding drum, maintain the shape of the winding drum stable, and prevent it from deformation or damage. The configuration of the reinforcing ribs further strengthens the connection and support between the support tube and the winding drum, thereby dispersing the pressure and stress from the winding of the stretch film, and improving its overall durability and load-bearing capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the utility model;

[0030] Figure 2 It is a structural schematic diagram of the stretch film body of the utility model.

[0031] The reference numerals in the figure are: 100, winding tube; 110, support tube; 120, reinforcing ribs; 200, winding film body; 210, base layer; 220, outer protective layer; 221, wear-resistant layer; 222, PET film layer; 230, inner protective layer; 231, tear-resistant layer; 232, puncture-resistant layer; 300, intermittent line; 310, tearing hole; 400, tear strip. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0033] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0034] The stretch film for product packaging provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0035] Embodiment 1:

[0036] like Figure 1 and Figure 2 As shown, an embodiment of the present application provides a stretch film for product packaging, comprising:

[0037] Winding drum 100;

[0038] The wrapping film body 200 is wound outside the wrapping drum 100, and the wrapping film body 200 includes:

[0039] Grassroots 210;

[0040] The outer protective layer 220 includes a wear-resistant layer 221 and a PET film layer 222, wherein the outer surface of the wear-resistant layer 221 is connected to the inner surface of the PET film layer 222;

[0041] The inner protective layer 230 includes a tear-resistant layer 231 and a puncture-resistant layer 232, wherein the inner surface of the tear-resistant layer 231 is connected to the outer surface of the puncture-resistant layer 232;

[0042] The outer protective layer 220 is disposed on the outer surface of the base layer 210 , and the inner protective layer 230 is disposed on the inner surface of the base layer 210 .

[0043] In some implementations of the embodiments of the present application, Figure 1 As shown, the above-mentioned wrapping film for product packaging can be used to support and store the wrapping film body 200 through the setting of the wrapping drum 100, so that the wrapping film can be easily wound and unfolded. The wrapping film body 200 is composed of a base layer 210, an outer protective layer 220 and an inner protective layer 230. The outer protective layer 220 includes a wear-resistant layer 221 and a PET film layer 222. The setting of the wear-resistant layer 221 can improve the wear resistance of the wrapping film, making it less likely to be worn during packaging and transportation, while the PET film layer 222 has excellent strength, transparency and heat resistance, which can further enhance the protective performance of the wrapping film. The outer surface of the wear-resistant layer 221 is connected to the inner surface of the PET film layer 222, forming a tight outer protective structure. The inner protective layer 230 includes a tear-resistant layer 231 and a puncture-resistant layer 232. The tear-resistant layer 231 can improve the tear resistance of the wrapping film to prevent it from being torn due to external forces during the packaging process. The puncture-resistant layer 232 can prevent sharp objects from piercing the wrapping film to protect the safety of the packaged products.

[0044] In addition, the base layer 210 is made of polyethylene material, and the base layer 210, the inner protective layer 230 and the outer protective layer 220 are formed by hot pressing.

[0045] The base layer 210 is made of polyethylene material, which is an important thermoplastic with excellent mechanical properties, chemical stability and processing properties. It can not only provide the necessary strength and toughness, but also be easy to process and shape, and is suitable as the base layer 210 material of the wrapping film. In addition, the base layer 210, the inner protective layer 230 and the outer protective layer 220 are connected together by hot pressing, which not only ensures the close connection between the layers and prevents separation or falling off during use, but also makes the entire wrapping film have better integrity and durability.

[0046] Embodiment 2:

[0047] An embodiment of the present application provides a stretch film for product packaging. In addition to the above-mentioned technical features, the stretch film for product packaging in the embodiment of the present application also includes the following technical features.

[0048] like Figure 1 and Figure 2 As shown, the wear-resistant layer 221 is made of polyphenylene sulfide material, the tear-resistant layer 231 is made of glass fiber material, and the puncture-resistant layer 232 is made of acrylic material.

[0049] In the embodiment of the present application, the wear-resistant layer 221 is made of polyphenylene sulfide material, the tear-resistant layer 231 is made of glass fiber material, and the puncture-resistant layer 232 is made of acrylic material. Polyphenylene sulfide (PPS) is a high-performance thermoplastic resin with excellent heat resistance, flame retardancy and chemical stability. As the main material of the wear-resistant layer 221, PPS can effectively resist external friction and wear, thereby extending the service life of the wrapping film. Secondly, glass fiber is a new inorganic non-metallic material with the characteristics of high strength, high modulus, temperature resistance, and corrosion resistance. As the main material of the tear-resistant layer 231, glass fiber can significantly improve the tear resistance of the wrapping film and prevent it from being torn due to external forces during the packaging process. Finally, acrylic acid is an organic compound with active chemical properties and good processing properties. As the main material of the puncture-resistant layer 232, acrylic acid can enhance the puncture resistance of the wrapping film, prevent sharp objects from piercing the wrapping film, and protect the safety of the packaged products.

[0050] By combining these three high-performance materials, the packaging stretch film can not only have excellent wear resistance, tear resistance and puncture resistance, but also have good heat resistance, chemical stability and processing performance.

[0051] Embodiment 3:

[0052] An embodiment of the present application provides a stretch film for product packaging. In addition to the above-mentioned technical features, the stretch film for product packaging in the embodiment of the present application also includes the following technical features.

[0053] like Figure 1 and Figure 2 As shown, a discontinuous line 300 is provided on the wrapping film body 200 , and the discontinuous line 300 is composed of a plurality of evenly arranged tearing openings 310 , and the tearing openings 310 are in strip shape.

[0054] In the embodiment of the present application, by providing the intermittent line 300 on the packaging wrap body 200, the provision of the intermittent line 300 allows the wrapping film to be easily torn when needed, thereby adjusting or terminating the wrapping length of the wrapping film, effectively simplifying the operation during the packaging process and improving work efficiency. The tearing openings 310 are evenly arranged and strip-shaped, which can ensure the stability and continuity of the tearing process. The user can easily tear the wrapping film along the tearing openings 310, effectively avoiding uneven tearing or accidental breakage. In addition, setting the tearing openings 310 in strips can avoid damaging the overall structure of the wrapping film to a certain extent.

[0055] In some embodiments of the present application, a tear strip 400 is disposed on the non-wrap end of the wrap film body 200 .

[0056] The presence of the tear strip 400 allows the user to easily find the non-wrap end when using it for the first time. The wrapping film can be easily pulled by pulling the tear strip 400 without having to find where the non-wrap end of the wrapping film is, thereby simplifying the operation process and improving work efficiency.

[0057] Embodiment 4:

[0058] An embodiment of the present application provides a stretch film for product packaging. In addition to the above-mentioned technical features, the stretch film for product packaging in the embodiment of the present application also includes the following technical features.

[0059] like Figure 1 and Figure 2 As shown, a support tube 110 is disposed inside the winding drum 100 , and a plurality of reinforcing ribs 120 are disposed between the support tube 110 and the winding drum 100 .

[0060] In the embodiment of the present application, the provision of the support tube 110 can significantly enhance the supporting capacity of the winding drum 100, maintain the shape of the winding drum 100 stable, and prevent it from deformation or damage. The configuration of the reinforcing ribs 120 further strengthens the connection and support between the support tube 110 and the winding drum 100. The reinforcing ribs 120 are evenly distributed along the gap between the support tube 110 and the winding drum 100, tightly connecting the support tube 110 and the winding drum 100 together to form a stable overall structure, which can disperse the pressure and stress from the winding of the wrapping film, thereby improving its overall durability and load-bearing capacity.

[0061] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0062] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A stretch film for product packaging, characterized in that: include: Winding tube (100); The wrapping film body (200) is wound outside the wrapping drum (100), and the wrapping film body (200) comprises: Grassroots (210); The outer protective layer (220) comprises a wear-resistant layer (221) and a PET film layer (222), wherein the outer surface of the wear-resistant layer (221) is connected to the inner surface of the PET film layer (222); An inner protective layer (230), comprising a tear-resistant layer (231) and a puncture-resistant layer (232), wherein the inner surface of the tear-resistant layer (231) is connected to the outer surface of the puncture-resistant layer (232); The outer protective layer (220) is arranged on the outer surface of the base layer (210), and the inner protective layer (230) is arranged on the inner surface of the base layer (210).

2. The stretch film for product packaging according to claim 1, characterized in that: The base layer (210) is made of polyethylene material, and the base layer (210), the inner protective layer (230) and the outer protective layer (220) are formed by hot pressing.

3. The stretch film for product packaging according to claim 1, characterized in that: The wear-resistant layer (221) is made of polyphenylene sulfide material, the tear-resistant layer (231) is made of glass fiber material, and the puncture-resistant layer (232) is made of acrylic material.

4. The stretch film for product packaging according to claim 1, characterized in that: The wrapping film body (200) is provided with a discontinuous line (300), which is composed of a plurality of evenly arranged tearing openings (310), and the tearing openings (310) are in the shape of strips.

5. The stretch film for product packaging according to claim 4, characterized in that: A tear strip (400) is provided on the non-wrap end of the wrapping film body (200).

6. The stretch film for product packaging according to claim 1, characterized in that: A support tube (110) is arranged inside the winding tube (100), and a plurality of reinforcing ribs (120) are arranged between the support tube (110) and the winding tube (100).

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