Anti-collapse automobile interior real leather

Abstract

The utility model discloses anti-collapse automobile interior real leather and a real leather seat structure. The anti-collapse automobile interior real leather comprises a leather layer, a leather layer, a leather layer and a leather layer which are sequentially arranged from top to bottom, a hot melt adhesive film layer; a gridding cloth layer; wherein the gridding cloth layer is a knitted fabric, the transverse elongation rate of the gridding cloth layer is a, the longitudinal elongation rate of the gridding cloth layer is b, and the quantitative relation that a is not equal to b is met. The utility model has the beneficial effects that not only can the softness loss be reduced as much as possible, but also the characteristics of preventing wrapping wrinkles and idle throwing of the seat can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of leather technology, specifically to a type of genuine leather for automotive interiors that prevents collapse. Background Technology

[0002] The increasing popularity of genuine leather seats is primarily due to their unique advantages. Firstly, genuine leather possesses natural breathability and moisture-wicking properties, effectively keeping the seat surface dry and comfortable, preventing the stuffiness and dampness that can occur during long drives. Secondly, genuine leather seats offer a soft and delicate touch, enhancing the driving and passenger experience. Furthermore, genuine leather seats are wear-resistant, stain-resistant, and easy to clean, making them more durable and convenient for daily use. Simultaneously, genuine leather seats have become a necessity for luxurious interiors in the minds of many Chinese consumers, and are increasingly becoming the first choice for enhancing customer perception in various car models.

[0003] With the rapid development of the automotive industry, consumers are becoming increasingly discerning about car interiors. Genuine leather seats, due to their elegant texture and pleasant feel, have gradually become the preferred choice for many car models. However, along with the widespread adoption of genuine leather seats, issues such as sagging and flaking have also come to the attention of consumers.

[0004] This study will analyze the sagging phenomenon of genuine leather seats and its causes. On the one hand, genuine leather, as a natural material, has a certain degree of elasticity and stretch, and its properties vary considerably in different directions. During use, due to the weight of the person and frequent movement, the surface of genuine leather seats is prone to creases and deformation. On the other hand, domestic car seat designs prioritize comfort, using multiple layers of soft foam to enhance the sofa-like feel of the seat surface.

[0005] Current solutions to address seat upholstery wrinkles and durability issues include reducing the softness (BLC) of the single-layer leather by 0.5-1.0 or using a conventional KUFNER backing. However, these methods harden the leather surface, compromising seat comfort. Producing bio-based leather using these existing technologies results in a loss of the original leather's feel and tear resistance.

[0006] In summary, in order to solve the problems of the prior art, this utility model provides a genuine leather interior material that is resistant to collapse. Summary of the Invention

[0007] The purpose of this invention is to provide a type of genuine leather for automotive interiors that is resistant to collapse. This type of genuine leather not only minimizes the loss of softness but also prevents wrinkles and loose seats.

[0008] To achieve the above objectives, the following technical solutions are used:

[0009] A type of anti-collapse genuine leather for automotive interiors, comprising, from top to bottom, the following:

[0010] Leather layer 11;

[0011] Hot melt adhesive film layer 12;

[0012] 13 mesh layers;

[0013] in,

[0014] The mesh fabric layer 13 is a knitted fabric. The transverse elongation of the mesh fabric layer 13 is a, and the longitudinal elongation of the mesh fabric layer 13 is b, satisfying the quantitative relationship: a≠b.

[0015] As a further improvement, the mesh layer 13 is CV&PESF, namely cotton / bio-based elastic polyester fiber.

[0016] In this embodiment, by laminating the mesh fabric layer 13 onto the flesh layer of the genuine leather layer 11 through the hot melt adhesive film layer 12, and by setting the mesh fabric layer 13 to have different elongation rates in the transverse and longitudinal directions, the elongation performance and deformation rate of the genuine leather fibers can be effectively constrained.

[0017] As a further improvement, the amount of hot melt adhesive applied to the hot melt adhesive film layer 12 is 23±2 / g.

[0018] As a further improvement, the thickness of the leather layer 11 is 1.2±2mm.

[0019] As a further improvement, the leather layer 11 is provided with through holes, the diameter of which is 1.0 mm and the hole spacing is 4*4 mm.

[0020] A genuine leather seat structure, comprising, from top to bottom, the following:

[0021] 10. Anti-collapse genuine leather interior for car interiors;

[0022] Leather composite layer sponge 20;

[0023] Zero gravity filling layer 30.

[0024] As a further improvement, the compressive strength of the zero-gravity filler layer 30 is 6.5 ± 2.5 kPa.

[0025] As a further improvement, the thickness of the leather composite layer sponge 20 is 8~10mm.

[0026] As a further improvement, the thickness of the zero-gravity filling layer 30 is 10~15mm.

[0027] This utility model provides a type of anti-collapse genuine leather for automotive interiors, which has the following beneficial effects:

[0028] 1) This anti-collapse automotive interior genuine leather, through the specific selection of mesh fabric layer, the mesh fabric layer is combined with leather layer 11 by hot melt adhesive. The resulting leather has the lowest constant load elongation and residual deformation rate, and the highest BLC softness value. This shows that by combining with mesh fabric layer, the constant load elongation and residual deformation rate can be effectively reduced, while not losing the softness of genuine leather.

[0029] 2) The mesh fabric layer in the genuine leather interior of this anti-collapse automotive interior uses CV&PESF knitted fabric with different elongation rates in the transverse and longitudinal directions. By attaching it to the flesh side of the genuine leather with an adhesive film, it can effectively constrain the elongation performance and deformation rate of the genuine leather fibers, thereby effectively preventing collapse. Attached Figure Description

[0030] Figure 1 A plan view of genuine leather;

[0031] Figure 2 A structural diagram of genuine leather interior trim in a car to prevent it from collapsing. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the following description, in conjunction with embodiments and accompanying drawings, further illustrates the utility model:

[0033] Example 1

[0034] A type of anti-collapse genuine leather for automotive interiors, comprising, from top to bottom, the following:

[0035] Leather layer 11;

[0036] Hot melt adhesive film layer 12;

[0037] 13 mesh layers;

[0038] in,

[0039] The mesh fabric layer 13 is knitted. The transverse elongation of the mesh fabric layer 13 is a, and the longitudinal elongation of the mesh fabric layer 13 is b, satisfying the quantitative relationship: a≠b.

[0040] In this embodiment, by laminating the mesh fabric layer 13 onto the flesh layer of the genuine leather layer 11 through the hot melt adhesive film layer 12, and by setting the mesh fabric layer 13 to have different elongation rates in the transverse and longitudinal directions, the elongation performance and deformation rate of the genuine leather fibers can be effectively constrained.

[0041] More preferably: the amount of hot melt adhesive applied to the hot melt adhesive film layer 12 is 23±2 / g; the thickness of the leather layer 11 is 1.2±2mm; the leather layer 11 is provided with through holes, the diameter of which is 1.0mm and the hole spacing is 4*4mm.

[0042] Example 2

[0043] like Figure 1 As shown, Figure 1 This is a planar view of dermis. The direction from the buttocks to the neck is the L direction, and the direction perpendicular to the L direction is the W direction. Generally, the W direction of dermis has a larger elongation at constant load and residual deformation rate, especially the abdominal area of ​​No. 5 cow, where the elongation at constant load and residual deformation rate are even greater.

[0044] Three samples were taken from the standard area of ​​the genuine leather. Each sample had a BLC softness of about 3.6. The samples were punched with a hole diameter of 1.0 mm and a hole spacing of 4*4. After punching, the I#, II# and III# mesh fabrics were heat-bonded respectively. After the bonding was completed, the constant load elongation, residual deformation rate and BLC softness of the three samples were tested.

[0045] The mesh layer 13 is CV&PESF, which is cotton / bio-based elastic polyester fiber.

[0046] in,

[0047] The technical parameters of #1 mesh fabric are:

[0048] The structure is: knitted fabric

[0049] Composition: 68% CV, 32% PESF

[0050] Coating: PA double-dot, 14 mesh (44 dots / square centimeter)

[0051] Weight: Total 58 ± 5g / m²

[0052] Coating weight: 15 ± 2 g / m²

[0053] Thickness: 0.40±0.10mm

[0054] Tensile strength: >80N / 5cm

[0055] Elongation at maximum force: >18% in bending direction, >8% in covering direction

[0056] The technical parameters of the Ⅱ# mesh fabric are:

[0057] The structure is: knitted fabric

[0058] Composition: 74% CV, 26% PESF

[0059] Coating: PA double-dot, 17 mesh (52 dots / square centimeter)

[0060] Weight: Total 65 ± 5g / m²

[0061] Coating weight: 15 ± 2 g / m²

[0062] Thickness: 0.40±0.10mm

[0063] Tensile strength: >80N / 5cm

[0064] Elongation at maximum force: >15% in bending direction, >6% in covering direction

[0065] The technical parameters of the No. Ⅲ mesh fabric are as follows:

[0066] The structure is: knitted fabric

[0067] Composition: 64% CV, 36% PESF

[0068] Coating: PA double-dot, 12 mesh (42 dots / square centimeter)

[0069] Weight: Total 55 ± 5 g / m²

[0070] Coating weight: 15 ± 2 g / m²

[0071] Thickness: 0.40±0.10mm

[0072] Tensile strength: >80N / 5cm

[0073] Elongation at maximum force: >20% in bending direction, >9% in covering direction

[0074] The specific test results are shown in Table 1.1.

[0075] Table 1.2

[0076]

[0077] As can be seen from the test results in Table 1.2, Sample II has the lowest elongation at constant load and residual deformation rate, while Sample II has the highest BLC softness value. This indicates that using Ⅱ# mesh fabric can effectively reduce the elongation at constant load and residual deformation rate, while also ensuring that the softness of the leather is not compromised.

[0078] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent modifications made using the present invention are within the patent protection scope of the present invention.

Claims

1. A type of anti-collapse genuine leather for automotive interiors, characterized in that, The anti-collapse genuine leather interior trim (10) includes the following components arranged from top to bottom: Leather layer (11); Hot melt adhesive film layer (12); Mesh fabric layer (13); in, The mesh fabric layer (13) is a knitted fabric. The transverse elongation rate of the mesh fabric layer (13) is a, and the longitudinal elongation rate of the mesh fabric layer (13) is b, which satisfies the quantitative relationship: a≠b.

2. The anti-collapse genuine leather for automotive interiors according to claim 1, characterized in that, The amount of hot melt adhesive applied to the hot melt adhesive film layer (12) is 23±2 / g.

3. The anti-collapse genuine leather for automotive interiors according to claim 1, characterized in that, The thickness of the leather layer (11) is 1.2±2mm.

4. The anti-collapse genuine leather for automotive interiors according to claim 1, characterized in that, The leather layer (11) is provided with through holes, the diameter of which is 1.0 mm and the hole spacing is 4*4 mm.

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