Edge oil composition, preparation method thereof and leather processing method

Abstract

The invention discloses an edge oil composition. The edge oil composition comprises the following components in percentage by weight: 88%-97% of polyurethane resin, 0.5%-1% of a defoaming agent, 0.5%-1% of a thickening agent, 1%-10% of a magnetic pigment and 0.1%-0.5% of an auxiliary agent. The invention also provides a preparation method of the edge oil composition and a leather processing method. The edge oil composition disclosed by the invention is convenient for decoration processing, the pigment can move under the action of magnetic field force, a gorgeous decoration effect is achieved, the preparation method is simple, easy to operate and convenient for industrial production and application, and meanwhile, the edge oil composition can be widely applied to leather processing.

Description

Technical Field

[0001] The invention relates to the field of leather processing, and in particular to an edge oil composition and a preparation method thereof, and a method for leather processing using the edge oil. Background Art

[0002] In the process of processing leather products, edge oil is often applied to the edge of the leather to decorate and protect the edge of the leather product. Existing edge oils can usually only provide a single color effect, but it is difficult to meet people's needs for aesthetic diversity. For this reason, people have begun to study the diversity of edge oil colors. For example, the Chinese invention patent document with publication number CN110028822A discloses a leather edge oil for preventing the mixing of colors, which obtains a leather edge effect with multiple colors separated; but special decorative effects (such as dispersed arrangement to achieve a cat's eye effect) still need to be solved. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide an edge oil composition, a method for preparing the edge oil composition, and a leather processing method.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] The invention discloses an edge oil composition, which comprises the following components in percentage by weight: 88-97% of polyurethane resin, 0.5-1% of defoamer, 0.5-1% of thickener, 1-10% of magnetic pigment and 0.1-0.5% of auxiliary agent.

[0006] In the present invention, a further preferred embodiment is that the auxiliary agent is an organosiloxane.

[0007] In the present invention, a further preferred embodiment is that the magnetic pigment is metal magnetic powder.

[0008] In the present invention, a further preferred solution is that the metal magnetic powder is composed of magnetic metal powders of at least two colors.

[0009] In the present invention, a further preferred solution is that the particle size of the magnetic pigment is 80-200 meshes.

[0010] In the present invention, a further preferred embodiment is that the defoaming agent is a silicone defoaming agent.

[0011] In the present invention, a further preferred embodiment is that the thickener is a polyurethane thickener.

[0012] In the present invention, a further preferred solution is that the edge oil composition includes the following components in percentage by weight: 97% urethane resin, 1% defoamer, 0.5% thickener, 1% magnetic pigment, and 0.5% additive.

[0013] The present invention also provides a method for preparing the edge oil composition, which comprises the following steps: adding a formulated amount of defoamer, thickener and auxiliary agent into a polyurethane resin and dispersing them evenly; then adding a formulated amount of magnetic pigment and mixing them evenly to obtain the edge oil composition.

[0014] The present invention also provides a leather processing method, which comprises the following steps: taking the edge oil composition, then applying the edge oil composition to the edge of the leather using an edge oil machine, and then using a magnetic mold to move the magnetic pigment in the edge oil composition applied to the edge of the leather to obtain a preset pattern.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: by using the edge oil composition of the present invention, due to the addition of magnetic pigments, the pigments can move in the edge oil under the application of a magnetic field, which is convenient for the subsequent processing and decoration of patterns using the pigments, and the added organic silicone additive can make the edge oil have a smooth and skin-friendly effect; the preparation method of the edge oil composition of the present invention is simple and easy to operate, and is convenient for industrial production and application; in addition, by using the edge oil composition, the metal pigments in the edge oil can be anchored under the action of a magnetic mold, so that the pattern is regularly distributed and a gorgeous and dreamy effect is achieved.

[0016] Instruction Manual

[0017] Figure 1 This is a photo of leather processed using the edge oil composition of Experimental Example 1. DETAILED DESCRIPTION

[0018] Below, the present invention is further described in conjunction with specific embodiments. It should be noted that, under the premise of no conflict, the embodiments described below or the technical features can be arbitrarily combined to form a new embodiment. Except for special instructions, the materials and equipment used in this embodiment can be purchased from the market. The specific embodiments are exemplary and are only used to explain this application, and cannot be understood as limiting the scope of protection of this application.

[0019] The invention discloses an edge oil composition, which comprises the following components in percentage by weight: 88-97% of polyurethane resin, 0.5-1% of defoamer, 0.5-1% of thickener, 1-10% of magnetic pigment and 0.1-0.5% of auxiliary agent.

[0020] In the edge oil composition of the present invention, the polyurethane resin is used as the main film-forming substance in the edge oil composition, which can provide good adhesion and make the edge oil have good mechanical properties and stability; the defoamer can inhibit / reduce the generation of foam during the preparation / use process, ensure the uniformity and flatness of the edge oil coating, and reduce defects such as holes and pinholes in the coating; the thickener can adjust the viscosity of the coating, improve the leveling performance of the edge oil, and facilitate construction and use; the addition of the magnetic pigment can make the edge oil composition move and be anchored to form a pattern by adjusting the magnetic field structure during use; the auxiliary agent can further adjust the performance of the edge oil.

[0021] The selection of auxiliary agents can be based on the requirements of edge oil performance; a further preferred solution is to select organic silicone as an auxiliary agent, which can improve the surface properties and weather resistance of the edge oil composition film, and prevent / reduce the damage to the edge oil coating by external factors (such as ultraviolet rays); and the organic silicone auxiliary agent can also make the edge oil have a smooth and skin-friendly effect.

[0022] The defoaming agent can be selected according to the performance of the edge paint; a further preferred solution is to select a silicone defoaming agent, which can make the overall stability of the edge paint and the coating quality higher, without pinholes and holes.

[0023] The thickener can be selected according to the performance of the edge oil; a further preferred solution is to select a polyurethane thickener.

[0024] In the present invention, a further preferred embodiment is that the auxiliary agent is an organosiloxane.

[0025] In the present invention, a further preferred embodiment is that the magnetic pigment is metal magnetic powder.

[0026] In the present invention, a further preferred solution is that the metal magnetic powder is composed of magnetic metal powders of at least two colors.

[0027] In the present invention, a further preferred solution is that the particle size of the magnetic pigment is 80-200 meshes.

[0028] In the present invention, a further preferred solution is that the edge oil composition includes the following components in percentage by weight: 97% urethane resin, 1% defoamer, 0.5% thickener, 1% magnetic pigment, and 0.5% additive.

[0029] The present invention also provides a method for preparing the edge oil composition, which comprises the following steps: adding a formulated amount of defoamer, thickener and auxiliary agent into a polyurethane resin and dispersing them evenly; then adding a formulated amount of magnetic pigment and mixing them evenly to obtain the edge oil composition.

[0030] The present invention also provides a leather processing method, which comprises the following steps: taking the edge oil composition, then applying the edge oil composition to the edge of the leather using an edge oil machine, and then using a magnetic mold to move the magnetic pigment in the edge oil composition applied to the edge of the leather to obtain a preset pattern.

[0031] Each component in Examples 1-4 was purchased from the open market, wherein the polyurethane resin was sourced from Kekong Materials Company (model number "CY-1023H"), the defoamer was sourced from BYK Chemical Company (model number "BYK024"), the thickener was sourced from Rohm and Haas Company of the United States (model number "RM3030"), the metallic magnetic pigment was sourced from Hangzhou Yayang Industrial Company (model number "RH981523S"), and the additive was sourced from Dow Corning Corporation of the United States (model number "DC51").

[0032] The edge oil compositions of Examples 1-4 are all prepared by the following steps: adding a formulated amount of defoamer, thickener and auxiliary agent to a polyurethane resin and dispersing them uniformly; then adding a formulated amount of magnetic pigment and mixing them uniformly to obtain the edge oil compositions.

[0033] Example 1

[0034] The invention discloses an edge oil composition, which comprises the following components in percentage by weight: 97% of polyurethane resin, 1% of defoamer, 0.5% of thickener, 1% of metal magnetic powder and 0.5% of auxiliary agent.

[0035] Example 2

[0036] The invention discloses an edge oil composition, which comprises the following components in percentage by weight: 88% of polyurethane resin, 0.5% of defoamer, 1% of thickener, 10% of metal magnetic powder and 0.5% of auxiliary agent.

[0037] Example 3

[0038] The invention discloses an edge oil composition, which comprises the following components in percentage by weight: 95% of polyurethane resin, 0.7% of defoamer, 0.7% of thickener, 3.3% of metal magnetic powder and 0.3% of auxiliary agent.

[0039] Example 4

[0040] The invention discloses an edge oil composition, which comprises the following components in percentage by weight: 90% of polyurethane resin, 0.8% of defoamer, 0.7% of thickener, 8% of metal magnetic powder and 0.5% of auxiliary agent.

[0041] Experimental example

[0042] Take the edge oil composition of Examples 1-4, take the edge oil composition, and then use an edge oil machine [Chinese utility model patent with publication number CN205914331U] to apply the edge oil composition to the edge of the leather, and then use a magnetic mold (the mold is provided with a plurality of bar magnets, each bar magnet is arranged in parallel at intervals, and the included angle with the vertical direction of the leather edge is 45 degrees, and the magnetic mold is placed 1.8 cm above the leather edge) to move the magnetic pigment in the edge oil composition applied to the leather edge, and after drying, a pattern with a regular arrangement effect is obtained, and the pattern is in a dreamy cat's eye state, as shown in FIG. Figure 1 The photo of leather processed with the edge oil composition of Example 1 is shown.

[0043] Finally, it should be noted that the above-mentioned implementation modes are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention are within the scope of protection required by the present invention.

Claims

1. An edge oil composition, characterized in that: The edge oil composition comprises the following components in percentage by weight: 88-97% of polyurethane resin, 0.5-1% of defoamer, 0.5-1% of thickener, 1-10% of magnetic pigment and 0.1-0.5% of auxiliary agent.

2. The edge oil composition according to claim 1, characterized in that: The auxiliary agent is organic siloxane.

3. The edge oil composition according to claim 1, characterized in that: The magnetic pigment is metal magnetic powder.

4. The edge oil composition according to claim 3, characterized in that: The metal magnetic powder is composed of magnetic metal powder of at least two colors.

5. The edge oil composition according to claim 1, characterized in that: The particle size of the magnetic pigment is 80-200 meshes.

6. The edge oil composition according to claim 1, characterized in that: The defoaming agent is a silicone defoaming agent.

7. The edge oil composition according to claim 1, characterized in that: The thickener is a polyurethane thickener.

8. The edge oil composition according to claim 1, characterized in that: The edge oil composition comprises the following components in percentage by weight: 97% polyurethane resin, 1% defoamer, 0.5% thickener, 1% magnetic pigment and 0.5% auxiliary agent.

9. A method for preparing the edge oil composition according to any one of claims 1 to 8, characterized in that The method comprises the following steps: adding a prescribed amount of defoamer, thickener and auxiliary agent into polyurethane resin and dispersing them evenly; then adding a prescribed amount of magnetic pigment and mixing them evenly to obtain the product.

10. A leather processing method, characterized in that: The method comprises the following steps: taking the edge oil composition described in any one of claims 1 to 5, applying the edge oil composition to the edge of leather using an edge oil machine, and then using a magnetic mold to move the magnetic pigment in the edge oil composition applied to the edge of the leather to obtain a preset pattern.

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