CN207842211U - A kind of leather with water-proof function - Google Patents

Abstract

The utility model provides a leather with waterproof function, which comprises a base material layer, a first adhesive layer, a leather layer, a second adhesive layer and a top coat layer bonded sequentially from bottom to top, and the base material layer is a three-way fabric , the first adhesive layer and the second adhesive layer are polyacrylate resin and the surface of the first adhesive layer and the second adhesive layer are provided with several air-permeable micropores, the top coat is silicone oil and the top coat is provided with several Each air hole group includes a main hole that runs through the top coat and several branch holes connected to the side of the main hole. The base material layer of the present invention adopts a three-phase fabric, and micropores can be formed on the surface. Helps breathability, the top coat in contact with the external environment uses silicone oil with waterproof function, and several air hole groups on the silicone oil, combined with the breathable micropores of the first adhesive layer and the second adhesive layer, make the entire leather While having excellent waterproof performance, it can also maintain breathability.

Description

a waterproof leather

technical field

The utility model belongs to the field of leather, in particular to a leather with waterproof function.

Background technique

Leather is widely used as the decoration of bags, clothing, shoes and furniture. With the improvement of people's living standards, the requirements for the durability of leather are getting higher and higher, especially the existing leather is easy to deform when exposed to water, and it will also fade after drying. Cracks easily. In view of this, this case conducts in-depth research on the waterproof and durable performance of leather, and proposes a leather with waterproof function, and this case arises from this.

Contents of the invention

The purpose of the utility model is to provide a leather with waterproof function, which has excellent waterproof, breathable and durable properties, overcomes the defects of the existing leather in this aspect, and meets people's high-quality requirements for leather.

The utility model is achieved in that:

Provide a kind of leather with waterproof function, wherein, it comprises base material layer, first adhesive layer, leather layer, second adhesive layer and top coating that are bonded successively from bottom to top, and described base material layer is three-way fabric, the first adhesive layer and the second adhesive layer are polyacrylate resin and the surface of the first adhesive layer and the second adhesive layer are provided with several air-permeable micropores, the top coat is silicone oil and the top coat is The coating is provided with several air hole groups, and each air hole group includes a main hole penetrating the top coating and several branch holes connected to the sides of the main hole.

Further, the three-way fabric is composed of silver fibers as the first warp yarn, tea fiber as the second warp yarn and nickel-titanium alloy fiber as the weft yarn interwoven with each other.

Further, the diameter of the main hole is 0.1 micron-0.3 micron, and the diameter of the branch holes is 0.3 micron-0.6 micron.

Further, the thickness ratio of the substrate layer, the first adhesive layer, the leather layer, the second adhesive layer and the top coat layer is 1.5:1:1.2:1:0.9.

Further, the leather layer is natural leather.

After adopting the above-mentioned technical scheme, the new model relates to a leather with waterproof function. Compared with the prior art, the beneficial effect is that the base material layer and the top coat layer of the leather are improved, the base material layer adopts three-phase fabric, and the surface It can form micro-pores, which is helpful for ventilation. The top coating in contact with the external environment uses silicone oil with waterproof function, and several air hole groups are formed on the silicone oil. The pore diameter of the air hole groups is strictly controlled so that the air hole groups can only pass through. Gaseous water cannot pass through liquid water, combined with the air-permeable micropores of the first adhesive layer and the second adhesive layer, the entire leather has excellent waterproof performance while maintaining air permeability.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is the structural representation of substrate layer in the utility model;

Explanation of reference signs:

1. Substrate layer, 11. First warp yarn, 12. Second warp yarn, 13. Weft yarn, 2. First adhesive layer, 3. Leather layer, 4. Second adhesive layer, 5. Top coat layer, 51 , main hole, 52, branch hole.

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present utility model in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Referring to Fig. 1, the present invention provides a leather with waterproof function, which includes a substrate layer 1, a first adhesive layer 2, a leather layer 3, a second adhesive layer 4 and The top coat 5, the substrate layer 1 is in contact with the human body during leather use, the top coat 5 is in contact with the external environment, the first adhesive layer 2 and the second adhesive layer 4 are polyacrylate resin, polyacrylate resin It acts as an adhesive to bond the non-adhesive substrate layer 1, leather layer 3 and top coat 5. The design of the two layers of adhesive layer not only serves as a bridging connection, but also makes the overall bonding of the leather stronger , It is not easy to disperse, so as to improve the aging resistance. More specifically, the thickness ratio of the substrate layer 1 , the first adhesive layer 2 , the leather layer 3 , the second adhesive layer 4 and the top coat layer 5 is 1.5:1:1.2:1:0.9.

The base layer 1 is a three-way fabric, as shown in Figure 2, the three-way fabric is made of silver fiber as the first warp yarn 11, tea fiber as the second warp yarn 12 and nickel-titanium alloy fiber as the weft yarn 13. Composed of interweaving, nickel-titanium alloy fiber is a shape memory alloy, which can be restored to flatness by high temperature after deformation. Silver fiber has the advantages of antistatic and anti-radiation, tea fiber has the utility of antibacterial and deodorizing, and the interweaving of the three kinds of fibers can integrate their respective advantages, so that the base layer 1 has the advantages of antistatic, antibacterial and wear-resistant. The three-way fabric Weaving from three directions makes the structure more stable, endows the base layer 1 with tear-resistant performance, and also forms micropores to satisfy air permeability.

The top coat 5 is silicone oil and the top coat 5 is provided with several groups of vent holes, and the silicone oil has a waterproof effect. A branch hole 52. Specifically, the diameter of the main hole 51 is 0.1 micron-0.3 micron, so that only gaseous water can pass through but liquid water cannot pass through, and the diameter of the branch hole 52 is 0.3 micron-0.6 micron. The two ends of the main hole 51 are respectively connected to the outside world and the second adhesive layer 4, and the two ends of the branch hole 52 are respectively connected to the main hole 51 and the second adhesive layer 4. That is to say, the main hole 51 will be exposed on the surface, and the number is small and empty The small diameter can keep the appearance compact and flat and excellent waterproof performance. The branch holes 52 will not be exposed on the surface, and the branch holes 52 with more numbers and larger apertures will not affect the appearance and waterproof performance of the leather, and can more quickly disperse the gas entering the interior from the outside or exhaust the interior from the inside. It plays the role of accelerating the flow of additional gas, so the combination of multiple branch holes 52 and a small number of main holes 51 has excellent waterproof performance and air permeability. In addition, the surfaces of the first adhesive layer 2 and the second adhesive layer 4 are provided with several air-permeable micropores, so that the entire leather can be ventilated without hindrance.

Wherein, the leather layer 3 is natural leather, which is prepared from natural animal skin through processes such as water immersion, depilation, tanning and fatliquoring, and a waterproof fatliquoring agent is added during the preparation process, which not only retains the hygienic properties of natural leather, And it has a certain waterproof effect. A fluorine-containing waterproof material is also added during the preparation of the first adhesive layer and the second adhesive layer.

This new model mainly improves the base layer and top coat of leather. The base layer adopts three-phase fabric, which utilizes the structural advantages of the three-phase fabric and takes three kinds of fibers with different properties to optimize the physical properties of the base layer. Nickel-cadmium fiber The promotion of silver fiber and tea fiber can achieve the effect of improving leather comfort and wrinkle resistance; the top coating uses the waterproof performance of silicone oil and the design of multiple air hole groups to make the leather waterproof and breathable, which meets people's needs. High quality requirements for leather.

The above is only an embodiment of the utility model, and does not limit the scope of patent protection of the utility model. Any equivalent structure or equivalent process transformation made by using the utility model specification and accompanying drawings is directly or indirectly used in Other relevant technical fields are all included in the patent protection scope of the present utility model in the same way.

Claims (5)

1. a kind of leather with water-proof function, which is characterized in that including cohesive substrate layer, the first gluing successively from the bottom to top Layer, leather layer, the second adhesive layer and top coating, the substrate layer are three-dimensional weave, first adhesive layer and the second gluing Layer is that polyacrylate resin and the first adhesive layer and the second gluing layer surface are equipped with several breathable microporous, the top coating For silicone oil and top coating is equipped with several group of air hole group, and each air hole group includes running through the main aperture of top coating and being connected to Several branch holes of main aperture side.

2. a kind of leather with water-proof function according to claim 1, which is characterized in that the three-dimensional weave is by with silver Fiber is the first warp thread, is that the second warp thread and being interweaved using Nitinol fiber as weft yarn is constituted with tea fiber.

3. a kind of leather with water-proof function according to claim 2, which is characterized in that the aperture of the main aperture is 0.1 micron -0.3 micron, the aperture in the branch hole is 0.3 micron -0.6 micron.

4. a kind of leather with water-proof function according to claim 1, which is characterized in that the substrate layer, the first glue Adhesion coating, leather layer, the second adhesive layer and top coating thickness ratio be 1.5：1：1.2：1：0.9.

5. a kind of leather with water-proof function according to claim 1, which is characterized in that the leather layer is natural skin Leather.