Waterproof packaging paper capable of protecting product from abrasion marks and preparation method of waterproof packaging paper

Abstract

The invention relates to the field of packaging paper, in particular to waterproof packaging paper capable of protecting a product from abrasion marks and a preparation method of the waterproof packaging paper. Waterproof layers are arranged on the upper side and the lower side of the base material layer respectively, and anti-abrasion crack layers are arranged on the sides, away from the base material layer, of the waterproof layers respectively; the waterproof layer is a waterproof coating formed by compounding a high-molecular polymer and a nanoscale waterproof agent; and the anti-abrasion crack layer is an anti-abrasion crack coating formed by compounding fine fibers and elastic resin. The waterproof packaging paper has the beneficial effects that by adding the nanoscale waterproof agent, the waterproof effect of the packaging paper is remarkably improved, moisture invasion is effectively prevented, and the waterproof packaging paper has excellent waterproof performance; by arranging the abrasion crack prevention layers on the two sides, one side can be used for effectively dispersing and absorbing external friction force, the other side can be used for protecting the surface of a product from being damaged by abrasion cracks, and therefore the efficient abrasion crack prevention capacity is achieved; and a recoverable material is selected as the base material layer, so that the influence on the environment is reduced, and the environmental protection sustainability is improved.

Description

Technical Field

[0001] The present invention relates to the field of wrapping paper, and more particularly to a waterproof wrapping paper capable of protecting products from abrasion marks and a preparation method thereof. Background Art

[0002] Although traditional wrapping paper can meet the basic packaging needs to a certain extent, it is often difficult to effectively protect products from damage when facing a humid environment or mutual friction between products.

[0003] Especially for easily damaged goods such as precision instruments, high-grade cosmetics, and electronic products, waterproof and anti-abrasion mark properties have become indispensable performance requirements for packaging materials. Summary of the Invention

[0004] The present invention provides a technical solution to solve the above problems in order to overcome the above deficiencies.

[0005] A waterproof wrapping paper capable of protecting products from abrasion marks, comprising a base material layer;

[0006] Waterproof layers are respectively arranged on the upper and lower sides of the base material layer, and anti-abrasion mark layers are respectively arranged on the sides of the waterproof layers away from the base material layer;

[0007] The waterproof layer is a waterproof coating composed of a polymer and a nano-scale waterproof agent;

[0008] The anti-abrasion mark layer is an anti-abrasion mark coating composed of microfibers and an elastic resin.

[0009] As a further aspect of the present invention: the base material layer is made of any one of kraft paper, recycled paper, aramid paper, or steel paper.

[0010] As a further aspect of the present invention: the polymer is any one of medium styrene-butadiene rubber, cis-butadiene rubber, polyethylene, or polyvinyl chloride; the nano-scale waterproof agent is any one of nano-permeable flexible waterproof agent, nano-permeable waterproof agent silicone, or nano-waterproof agent glue.

[0011] As a further aspect of the present invention: the microfibers are any one of polyester fibers, ultra-fine fibers, or nylon fibers; the elastic resin is any one of hydroxyl-containing linear polyester resin or polyester resin modified with polyurethane elastomer.

[0012] A preparation method of a waterproof wrapping paper capable of protecting products from abrasion marks, the specific steps are as follows:

[0013] Step 1: Pretreatment of the base material layer: Clean and dust the selected paper-based material to enhance the coating adhesion of the paper-based material;

[0014] Step 2: Waterproof layer coating: Mix the polymer with the nano-level waterproof agent in proportion, and then evenly coat the formed mixture on the surface of the substrate layer. A waterproof layer is formed through hot air drying or ultraviolet curing;

[0015] Step 3: Abrasion-resistant layer construction: Mix the microfibers with the elastic resin in proportion, and then evenly cover the formed mixture on the waterproof layer by using electrospinning or spraying technology. Subsequently, secondary curing treatment is carried out to ensure the firmness and wear resistance of the abrasion-resistant layer, and finally the finished packaging paper is formed;

[0016] Step 4: Post-treatment: Carry out post-treatment processes such as cutting and folding on the finished packaging paper to meet the packaging requirements of different products.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: By adding the nano-level waterproof agent, the waterproof effect of the packaging paper is significantly improved, effectively preventing moisture intrusion, and having excellent waterproof performance; By providing abrasion-resistant layers on both sides, one side can be used to effectively disperse and absorb external friction, and the other side can be used to protect the product surface from abrasion damage, thus having high abrasion-resistant ability; By selecting recyclable materials as the substrate layer, the impact on the environment is reduced, and the environmental protection sustainability is improved.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. Brief Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic structural diagram of the present invention.

[0021] As shown in the figure: 1. Substrate layer; 2. Waterproof layer; 3. Abrasion-resistant layer. Detailed Embodiments

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0023] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0025] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Please refer to Figure 1 , a waterproof wrapping paper that can protect products from abrasion marks, including a base material layer 1;

[0027] Waterproof layers 2 are respectively arranged on the upper and lower sides of the base material layer 1, and anti-abrasion layers 3 are respectively arranged on the sides of the waterproof layers 2 away from the base material layer 1;

[0028] The waterproof layer 2 is a waterproof coating composed of a polymer and a nano-level waterproof agent;

[0029] The anti-abrasion layer 3 is an anti-abrasion coating composed of microfibers and elastic resin.

[0030] By adding a nano-level waterproof agent to the waterproof layer 2, the waterproof effect of the wrapping paper is significantly improved, effectively preventing moisture intrusion and having excellent waterproof performance; by providing the anti-abrasion layers 3 on both sides, one side can be used to effectively disperse and absorb external friction, and the other side can be used to protect the product surface from abrasion damage, thus having high anti-abrasion ability.

[0031] Furthermore, the base material layer 1 is made of any one of kraft paper, recycled paper, aramid paper or steel paper.

[0032] By selecting a high-strength and water-resistant paper-based material as the substrate, the overall strength and stability of the packaging paper can be ensured, and it also has a certain degree of environmental friendliness.

[0033] Furthermore, the polymer is any one of styrene-butadiene rubber, cis-1,4-polybutadiene, polyethylene or polyvinyl chloride; the nano-scale waterproofing agent is any one of nano-permeable flexible waterproofing agent, nano-permeable waterproofing agent silicone, nano waterproofing agent glue.

[0034] It can form a dense waterproof barrier, thus effectively blocking the penetration of moisture, and there are two layers, which can better play the role of water isolation.

[0035] Furthermore, the microfiber is any one of polyester fiber, ultra-fine fiber, nylon fiber; the elastic resin is any one of hydroxyl-terminated linear polyester resin, polyester resin modified by polyurethane elastomer.

[0036] It can form a soft and highly wear-resistant anti-abrasion mark layer 3. On the side used to wrap the product, it can effectively protect the product surface from abrasion marks, while on the other side, it can effectively disperse and absorb external frictional forces.

[0037] A preparation method of a waterproof packaging paper that can protect products from abrasion marks, and the specific steps are as follows:

[0038] Step 1: Pretreatment of the substrate layer 1: Clean and remove dust from the selected paper-based material to enhance the coating adhesion of the paper-based material.

[0039] Step 2: Coating of the waterproof layer 2: Mix the polymer and the nano-scale waterproofing agent in proportion, and then evenly coat the formed mixture on the surface of the substrate layer 1, and form the waterproof layer 2 by hot air drying or ultraviolet curing.

[0040] Step 3: Construction of the anti-abrasion mark layer 3: Mix the microfiber and the elastic resin in proportion, and then evenly cover the formed mixture on the waterproof layer 2 by electrospinning or spraying technology, and then perform secondary curing treatment to ensure the firmness and wear resistance of the anti-abrasion mark layer 3, and finally form the finished packaging paper.

[0041] Step 4: Post-treatment: Perform post-treatment processes such as cutting and folding on the finished packaging paper to meet the packaging requirements of different products.

[0042] It should also be noted that, in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0043] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A waterproof wrapping paper that can protect products from abrasion marks, characterized in that: It includes a substrate layer (1); On the upper and lower sides of the substrate layer (1), waterproof layers (2) are respectively arranged, and on the sides of the waterproof layers (2) away from the substrate layer (1), anti-scratch layers (3) are respectively arranged; The waterproof layer (2) is a waterproof coating composed of a polymer and a nano-level waterproof agent; The anti-scratch layer (3) is an anti-scratch coating composed of microfibers and an elastic resin.

2. The waterproof wrapping paper for protecting the product against abrasion marks according to claim 1, characterized in that: The substrate layer (1) is made of any one of kraft paper, recycled paper, aramid paper or steel paper.

3. The waterproof wrapping paper for protecting the product against abrasion marks according to claim 1, characterized in that: The polymer is any one of styrene-butadiene rubber, cis-butadiene rubber, polyethylene or polyvinyl chloride; the nano-level waterproof agent is any one of nano-permeable flexible waterproof agents, nano-permeable waterproof agent silicone, and nano-waterproof agent glue.

4. The waterproof wrapping paper for protecting the product against abrasion marks according to claim 1, characterized in that: The microfibers are any one of polyester fibers, ultra-fine fibers, and nylon fibers; the elastic resin is any one of hydroxyl-containing linear polyester resins and polyester resins modified with polyurethane elastomers.

5. A method for preparing a waterproof wrapping paper for protecting a product against abrasion as described in claims 1-4, characterized in that: The specific steps are as follows: Step 1: Pretreatment of the substrate layer (1): The selected paper-based material is subjected to surface cleaning and dust removal to enhance the coating adhesion of the paper-based material; Step 2: Coating of the waterproof layer (2): The polymer and the nano-level waterproof agent are mixed in proportion, and the formed mixture is evenly coated on the surface of the substrate layer (1), and the waterproof layer (2) is formed by hot air drying or ultraviolet curing; Step 3: Construction of the anti-scratch layer (3): The microfibers and the elastic resin are mixed in proportion, and the formed mixture is evenly covered on the waterproof layer (2) by electrospinning or spraying technology, and then secondary curing treatment is carried out to ensure the firmness and wear resistance of the anti-scratch layer (3), and finally the finished packaging paper is formed; Step 4: Post-treatment: Post-treatment processes such as cutting and folding are carried out on the finished packaging paper to meet the packaging requirements of different products.

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