Acid-corrosion-resistant natural leather

Abstract

The utility model discloses acid corrosion resistant leather, which relates to the technical field of natural leather and comprises a natural leather layer tanned by plants. The permeation protection layer is fixedly attached to the outer side of the natural leather layer; the filling protection layer is fixedly arranged on the outer side of the seepage protection layer in an attached mode; the acid corrosion prevention layer is fixedly arranged on the outer side of the filling and protecting layer in an attached mode; the acid corrosion resistant layer comprises a polyurethane coating fixedly arranged outside the filling and protecting layer in an attached mode, an epoxy resin coating fixedly arranged outside the polyurethane coating in an attached mode and a siloxane coating fixedly arranged outside the epoxy resin coating in an attached mode; the utility model has the advantages that: the natural leather layer is subjected to permeation softening treatment by adopting natural grease or an environment-friendly softening agent until the permeation protection layer for protection is formed on the surface of the natural leather layer, and then the filling protection layer is arranged on the surface of the permeation protection layer to enhance protection, so that the acid corrosion resistance is preliminarily improved; meanwhile, the acid corrosion resistant layer is arranged on the outer side of the filling protection layer, the acid corrosion resistant capacity is further improved, and the use effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of leather, and more specifically to natural leather resistant to acid corrosion. Background Art

[0002] Natural leather can be divided into pig leather, cow leather, sheep leather, horse leather, donkey leather and kangaroo leather, etc., and a small amount of fish leather, reptile leather, amphibian leather, ostrich leather, etc.; among them, cow leather can be divided into yellow cattle leather, buffalo leather, yak leather and yak leather; sheep leather can be divided into sheep leather and goat leather;

[0003] Acid-resistant natural leather is usually specially treated to resist the erosion of acidic substances. This type of leather is mainly suitable for work or living environments that require acid-resistant protection. Specific applicable environments include:

[0004] Chemical industry: in chemical plants, laboratories and other environments;

[0005] Manufacturing and maintenance: Acidic substances are often encountered in industries such as automotive battery maintenance, metal processing, and electroplating. Gloves and aprons made of acid-resistant leather can protect workers from chemical corrosion; etc.

[0006] The "anti-corrosion layer" described in the existing (publication (publication) number: CN215970421U, a leather with anti-corrosion function) provides an anti-corrosion effect, but the effect of application in an acid-resistant working or living environment is still poor, and the pretreatment effect on natural leather is insufficient and the acid corrosion resistance is poor. Utility Model Content

[0007] The purpose of the utility model is to solve the above technical problems and provide a natural leather which is resistant to acid corrosion.

[0008] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0009] The utility model provides a natural leather resistant to acid corrosion, comprising:

[0010] Vegetable tanned natural leather layer;

[0011] It also includes a permeable protective layer, which is fixedly arranged on the outer side of the natural leather layer;

[0012] A filling layer, which is fixedly arranged on the outside of the seepage layer;

[0013] The acid corrosion resistant layer is fixedly arranged on the outer side of the filling and protecting layer.

[0014] As a preferred technical solution of the utility model, the acid corrosion protection layer includes a polyurethane coating adhered and fixed to the outside of the filling layer.

[0015] As a preferred technical solution of the utility model, the acid corrosion protection layer also includes an epoxy resin coating adhered and fixed to the outside of the polyurethane coating.

[0016] As a preferred technical solution of the utility model, the acid corrosion protection layer also includes a silicone coating adhered and fixed to the outside of the epoxy resin coating.

[0017] The beneficial effects of the utility model are as follows:

[0018] The natural leather layer 1 is subjected to a penetration softening treatment using natural oils or environmentally friendly softeners until a protective penetration layer 2 is formed on the surface of the natural leather layer 1, and then a filling layer 3 is arranged on the surface of the penetration layer 2 to strengthen the protection, thereby preliminarily improving the acid corrosion resistance. At the same time, an acid corrosion resistance layer 4 is arranged on the outside of the filling layer 3 to further improve the acid corrosion resistance, thereby achieving a good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure numerals: natural leather layer-1, penetration protective layer-2, filling protective layer-3, acid corrosion protection layer-4, polyurethane coating-41, epoxy resin coating-42, silicone coating-43. DETAILED DESCRIPTION

[0021] like Figure 1 As shown, the utility model proposes: a natural leather resistant to acid corrosion, comprising;

[0022] Vegetable tanned natural leather layer 1 {Vegetable tanning: avoids the use of heavy metal chromium salts, greatly reduces environmental pollution in the leather processing process, meets the requirements of modern environmental protection and sustainable development, vegetable tanning agents are mostly derived from plants in nature, such as tannin (extracted from plants such as oak), bark extracts, etc., which are all renewable resources}, can strengthen the structure and corrosion resistance;

[0023] It also includes a permeable protective layer 2, which is fixedly arranged on the outer side of the natural leather layer 1 {the processing process can be: thoroughly cleaning the vegetable tanned natural leather layer 1 to remove impurities that may remain in the tanning process, and then using natural oils (olive oil or sunflower oil, etc.) or environmentally friendly softeners to infiltrate and soften the natural leather layer 1, which can not only increase the softness and elasticity of the leather, but also improve its air permeability, and subsequently a thin protective film can be formed on the surface of the natural leather layer 1, and the protective film is the permeable protective layer 2};

[0024] The filling layer 3 is fixedly arranged on the outside of the seepage protective layer 2 {using a filler (usually a water-based or natural material, such as water-based polyurethane, natural gum, starch derivatives or cellulose substances), when arranged on the outside of the seepage protective layer 2, the micropores on the surface of the seepage protective layer 2 (micropores are small scratches, small grooves, etc. produced in the case of tanning, etc., to fill the grooves not filled by the above-mentioned seepage protective layer 2) can be filled to form a protective layer (i.e., the filling layer 3)};

[0025] The acid corrosion protection layer 4 is fixedly arranged on the outer side of the filling layer 3 to improve the corrosion resistance, especially the protection against acid corrosion;

[0026] In order to realize the implementation and use of the above-mentioned acid corrosion resistant layer 4, it is proposed that Figure 1 As shown, the specific structure and composition of the acid corrosion resistant layer 4 can be as follows: the acid corrosion resistant layer 4 includes a polyurethane coating 41 fixedly arranged outside the filling layer 3, which has good chemical stability and can effectively prevent the corrosion of acidic substances;

[0027] The acid corrosion resistant layer 4 also includes an epoxy resin coating 42 fixedly mounted on the outside of the polyurethane coating 41, which can form a tougher network structure through chemical reaction to enhance the physical and chemical stability of the leather;

[0028] The acid corrosion resistant layer 4 further comprises a siloxane coating 43 fixedly attached to the epoxy resin coating 42 to improve the waterproof, wear-resistant and chemical corrosion-resistant properties of the surface.

[0029] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A natural leather resistant to acid corrosion, comprising: Vegetable tanned natural leather (1); It is characterized in that It also includes a permeable protective layer (2) which is fixedly attached to the outer side of the natural leather layer (1); A filling and protective layer (3) is fixedly arranged on the outer side of the permeable protective layer (2); The acid corrosion resistant layer (4) is fixedly attached to the outer side of the filling and protective layer (3).

2. The acid-corrosion-resistant natural leather according to claim 1, characterized in that: The acid corrosion resistant layer (4) comprises a polyurethane coating (41) which is adhered and fixed to the outside of the filling and protective layer (3).

3. The acid-corrosion-resistant natural leather according to claim 2, characterized in that: The acid corrosion resistant layer (4) further comprises an epoxy resin coating (42) adhered and fixed to the outside of the polyurethane coating (41).

4. The acid-corrosion-resistant natural leather according to claim 3, characterized in that: The acid corrosion resistant layer (4) further comprises a silicone coating (43) adhered and fixed to the outside of the epoxy resin coating (42).

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