Kraft paper for packaging automobile parts

Abstract

The utility model discloses kraft paper for packaging automobile parts, and belongs to the field of kraft paper, the kraft paper comprises a kraft paper core layer, two opposite surfaces of the outer side wall of the kraft paper core layer are coated with isolation layers for preventing liquid permeation, the isolation layer on one side of the kraft paper core layer is coated with an oleophobic layer, and the isolation layer on the other side of the kraft paper core layer is coated with an oleophobic layer. A wear-resistant layer is coated on the isolating layer on the other side of the kraft paper core layer, and reinforcing layers are adhered between the oleophobic layer and the isolating layer on one side and between the wear-resistant layer and the isolating layer on the other side. The kraft paper and the isolating layer have waterproof and moistureproof effects, the oleophobic layer has the effect of protecting anti-rust oil on the surface of the automobile part and prevents the anti-rust oil from seeping out, the wear-resistant layer enhances the wear-resistant effect of the kraft paper core layer, makes contact with the external environment and provides higher protection performance, and the reinforcing layer further reinforces the kraft paper core layer from the two sides of the kraft paper core layer, so that the service life of the kraft paper core layer is prolonged. Therefore, the overall tensile strength and puncture resistance of the kraft paper core layer are improved, and the situation that the accessories are damaged when the automobile accessories are packaged is avoided.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of kraft paper, and particularly relates to a kraft paper for packaging automobile parts. BACKGROUND

[0002] Kraft paper is used as a wrapping material. It is very strong. It is usually brownish in color. Semi-bleached or fully bleached kraft pulp is light brown, cream or white. The basis weight is 80-120 g / m2. The breaking length is usually over 6000 m. The tear resistance, burst strength and dynamic strength are very high. It is mostly in the form of a reel, and also in the form of a flat sheet. It is made of kraft pulp of sulfite softwood, which is beaten and then formed on a long net paper machine. It can be used as cement bag paper, envelope paper, gummed paper, asphalt paper, cable protection paper, insulating paper and the like.

[0003] The traditional kraft paper is generally only one single layer of paper, and the tensile resistance of the kraft paper itself is poor. When the kraft paper is used for packaging automobile parts and the like which have obvious corners, the kraft paper is easily damaged due to impact, the parts are exposed, damage is caused, and certain problems exist.

[0004] Therefore, the application provides a kraft paper for packaging automobile parts to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] The application provides a kraft paper for packaging automobile parts, and aims to solve the problems that the existing traditional kraft paper is generally only one single layer of paper, the tensile resistance of the kraft paper itself is poor, when the kraft paper is used for packaging automobile parts and the like which have obvious corners, the kraft paper is easily damaged due to impact, the parts are exposed, damage is caused, and certain problems exist.

[0006] To achieve the above object, the application provides the following technical scheme: a kraft paper for packaging automobile parts, comprising a kraft paper core layer:

[0007] Two opposite surfaces of the outer side wall of the kraft paper core layer are coated with isolation layers for preventing liquid penetration, an oil-repellent layer is coated on one side of the kraft paper core layer, a wear-resistant layer is coated on the other side of the kraft paper core layer, and a reinforcing layer is bonded between the oil-repellent layer and one side of the isolation layer and between the wear-resistant layer and the other side of the isolation layer. In this way, when the kraft paper is used, the automobile parts are placed on the side of the oil-repellent layer, the automobile parts are wrapped, the isolation layers play the role of waterproofing and moisture-proofing, the oil-repellent layer plays the effect of protecting the surface of the automobile parts from rust oil, the wear-resistant layer enhances the wear resistance of the kraft paper core layer, the kraft paper core layer is in contact with the external environment, and the reinforcing layer further reinforces the kraft paper core layer from both sides, so that the tensile resistance and puncture resistance of the kraft paper core layer as a whole are improved, and the automobile parts are prevented from being damaged due to breakage when the automobile parts are packaged.

[0008] Preferably, in order to protect the accessory, the oil-repellent layer is arranged away from the wear-resistant layer, and the wear-resistant layer has a thickness greater than that of the oil-repellent layer. The kraft paper core layer and the oil-repellent layer are prevented from being damaged, and oil leakage is avoided.

[0009] Preferably, in order to ensure strength, the kraft paper core layer comprises a fibrous material mixture layer and a first adhesive layer, which are mixed with each other and are formed by pressing. The strength of the kraft paper core layer is ensured.

[0010] Preferably, in order to improve the tensile resistance, the reinforcing layer comprises a non-woven fabric layer arranged in a mesh shape and a second adhesive layer, which are mixed with each other and are respectively bonded to and completely fitted with the isolation layer, the oil-repellent layer and the wear-resistant layer. The probability of damage is reduced.

[0011] Preferably, in order to ensure the quality of the kraft paper, the non-woven fabric layer is arranged flat between the isolation layer and the oil-repellent layer and between the isolation layer and the wear-resistant layer. The kraft paper is smooth and flat after being formed, and is convenient to use.

[0012] Preferably, in order to fix the non-woven fabric layer, the kraft paper further comprises a hemming mechanism, which comprises a press groove formed by hot pressing along the edge position of the wear-resistant layer. The edge of the non-woven fabric layer is more compact, and is not easy to separate, and the stability is improved.

[0013] The kraft paper places the automobile accessory on the oil-repellent layer side, wraps the automobile accessory, and the isolation layer plays a waterproof and moisture-proof role. The oil-repellent layer plays a rust-proof oil protection effect on the surface of the automobile accessory, prevents the rust-proof oil from seeping out, and the wear-resistant layer enhances the wear-resistant effect of the kraft paper core layer, contacts the external environment, and provides stronger protection. The reinforcing layer further reinforces the kraft paper core layer from both sides, thereby improving the overall tensile resistance and puncture resistance of the kraft paper core layer, and avoiding damage to the accessory due to damage during packaging of the automobile accessory.

[0014] The kraft paper is laid flat, the edges of the kraft paper are covered by a strip-shaped press, the pressed part is recessed, the oil-repellent layer, the wear-resistant layer and the reinforcing layer inside are further compressed, and the edge of the non-woven fabric layer is more compact, not easy to separate, and the stability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic view of the layered cross-sectional structure of the kraft paper for packaging automobile accessories.

[0016] Figure 2 It is a schematic view of the surface and partial cross-sectional structure of the kraft paper for packaging automobile accessories.

[0017] Figure 3 It is a schematic view of the surface and partial cross-sectional structure of the kraft paper for packaging automobile accessories. Figure 1 It is an enlarged schematic view of position A in FIG. 4.

[0018] Fig. 1 is a schematic view of the kraft paper for automobile accessory packaging according to the present application;

[0019] 1, kraft paper core layer; 11, fiber material mixture layer; 12, first adhesive layer; 2, isolation layer; 3, oil-repellent layer; 4, wear-resistant layer; 5, reinforcing layer; 51, non-woven fabric layer; 52, second adhesive layer; 6, hemming mechanism; 61, pressing groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] Embodiment 1

[0022] The present embodiment provides a kraft paper for automobile accessory packaging, as shown in the figure, the kraft paper comprises a kraft paper core layer 1: Figures 1-3

[0023] The two opposite surfaces of the outer side wall of the kraft paper core layer 1 are coated with an isolation layer 2 for preventing liquid penetration, an oil-repellent layer 3 is coated on one side of the isolation layer 2 on the kraft paper core layer 1, and a wear-resistant layer 4 is coated on the other side of the isolation layer 2 on the kraft paper core layer 1. Reinforcing layers 5 are adhered between the oil-repellent layer 3 and the one side of the isolation layer 2 and between the wear-resistant layer 4 and the other side of the isolation layer 2.

[0024] In use, the automobile accessory is placed on the side of the oil-repellent layer 3, and the automobile accessory is wrapped. The isolation layer 2 plays a role in waterproofing and moisture-proofing, the oil-repellent layer 3 plays a role in protecting the surface of the automobile accessory from rust oil, preventing the rust oil from seeping out, the wear-resistant layer 4 enhances the wear-resistant effect of the kraft paper core layer 1, and provides stronger protection when in contact with the external environment. The reinforcing layers 5 further reinforce the kraft paper core layer 1 from both sides, thereby improving the overall tensile strength and puncture resistance of the kraft paper core layer 1, and avoiding damage to the accessory due to breakage during packaging of the automobile accessory.

[0025] Specifically, the oil-repellent layer 3 and the wear-resistant layer 4 are arranged opposite to each other, and the thickness of the wear-resistant layer 4 is greater than that of the oil-repellent layer 3. In use, the oil-repellent layer 3 protects the accessory from the inside, and the wear-resistant layer 4 protects the accessory from the outside. The thickened wear-resistant layer 4 has better wear-resistant effect, preventing the kraft paper core layer 1 and the oil-repellent layer 3 from being damaged, and ensuring that there is no oil leakage.

[0026] ​More specifically, the kraft paper core layer 1 includes a fiber material mixture layer 11 and a first adhesive layer 12, which are mixed and press-formed. In use, the fiber material mixture layer 11 mixed with the first adhesive layer 12 is put into a press for press-forming, so as to ensure the strength of the kraft paper core layer 1.

[0027] Further, the reinforcing layer 5 includes a non-woven fabric layer 51 arranged in a mesh shape and a second adhesive layer 52, which are mixed and respectively bonded to and completely adapted to the isolation layer 2, the oil-repellent layer 3 and the wear-resistant layer 4. In use, the mesh-shaped non-woven fabric layer 51 is impregnated with glue and mixed with the second adhesive layer 52, and then laid on the surface of the isolation layer 2 by a roller, and then the oil-repellent layer 3 and the wear-resistant layer 4 are laid to cover the non-woven fabric layer 51, and then press-formed to complete the kraft paper. The mesh-shaped non-woven fabric layer 51 provides better tensile resistance for the kraft paper, thereby reducing the probability of damage.

[0028] Further, the non-woven fabric layer 51 is laid between the isolation layer 2 and the oil-repellent layer 3 and between the isolation layer 2 and the wear-resistant layer 4. In use, the non-woven fabric layer 51 in a horizontal laying state with the isolation layer 2, the oil-repellent layer 3 and the wear-resistant layer 4 ensures that the kraft paper is smooth and flat after forming, thereby facilitating use.

[0029] Embodiment 2

[0030] Different from Embodiment 1, the edges of the non-woven fabric layer 51 can be separated, so the kraft paper further includes a locking mechanism 6, which includes a pressing groove 61 hot-pressed along the edge of the wear-resistant layer 4. In use, the kraft paper is laid and the edges of the kraft paper are covered by a strip-shaped press, so that the edges are recessed, and the oil-repellent layer 3, the wear-resistant layer 4 and the reinforcing layer 5 inside are further compressed, thereby making the edges of the non-woven fabric layer 51 more compact and less likely to separate, and improving stability.

[0031] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent replacements or changes to the technical solutions and concepts of the present application within the technical scope disclosed by the present application, which should be covered by the protection scope of the present application.

Claims

1. A kraft paper for automobile accessory packaging, comprising a kraft paper core layer (1), characterized in that: two opposite surfaces of the outer side wall of the kraft paper core layer (1) are coated with a barrier layer (2) for preventing liquid penetration, an oil-repellent layer (3) is coated on one side of the barrier layer (2) on the kraft paper core layer (1), and a wear-resistant layer (4) is coated on the other side of the barrier layer (2) on the kraft paper core layer (1), and a reinforcing layer (5) is bonded between the oil-repellent layer (3) and the one side barrier layer (2) and between the wear-resistant layer (4) and the other side barrier layer (2).

2. Kraft paper for packaging of automobile parts according to claim 1, characterized in that: The oil-repellent layer (3) and the wear-resistant layer (4) are arranged in opposite directions, and the thickness of the wear-resistant layer (4) is greater than that of the oil-repellent layer (3).

3. Kraft paper for packaging of automobile parts according to claim 1, characterized in that: The kraft paper core layer (1) comprises a fiber material mixture layer (11) and a first adhesive layer (12), and the fiber material mixture layer (11) and the first adhesive layer (12) are mixed and pressed together.

4. Kraft paper for packaging of automobile parts according to claim 1, characterized in that: The reinforcing layer (5) comprises a non-woven fabric layer (51) arranged in a mesh shape and a second adhesive layer (52), and the non-woven fabric layer (51) and the second adhesive layer (52) are mixed together and bonded with and completely fitted to the barrier layer (2), the oil-repellent layer (3), and the wear-resistant layer (4) respectively.

5. Kraft paper for packaging of automobile parts according to claim 4, characterized in that: The non-woven fabric layer (51) is arranged flat between the barrier layer (2) and the oil-repellent layer (3) and between the barrier layer (2) and the wear-resistant layer (4).

6. Kraft paper for packaging of automobile parts according to claim 5, characterized in that: The kraft paper further comprises a locking mechanism (6), and the locking mechanism (6) comprises a pressing groove (61) hot-pressed and formed along the edge position of the wear-resistant layer (4).

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