Edge oil composition with wire drawing effect as well as preparation method and application thereof

Abstract

The invention discloses an edge oil composition with a wire drawing effect. The edge oil composition is prepared from the following components in percentage by weight: 10 to 20 percent of polyurethane resin, 30 to 50 percent of diluent, 0.2 to 0.5 percent of defoaming agent, 0.5 to 2 percent of thickening agent, 2 to 5 percent of pigment, 5 to 10 percent of additive and 30 to 40 percent of water. The invention further provides the edge oil composition and application of the edge oil composition in leather decoration. The edge oil composition disclosed by the invention has good color fixing effect, flexibility and adhesive force, and the drying speed of the edge oil composition is convenient to adjust and control, so that the subsequent wiredrawing decoration operation is facilitated; the preparation method of the edge oil composition is simple, easy to operate and convenient for industrial production and application, and can be widely applied to leather decoration processing.

Description

Technical Field

[0001] The present invention relates to edge oil for leather products, and specifically relates to an edge oil composition with a wire drawing effect, its preparation method and application. Background Art

[0002] During the processing of leather products, edge oil is often applied to the edges of the leather to decorate and protect the edges of the leather products. The existing edge oil usually can only provide a single color effect, but it is difficult to meet people's needs for aesthetic diversity. Therefore, people have started to study the diversity of edge oil colors. For example, the Chinese invention patent document with the publication number CN110028822A discloses a leather edge oil for preventing color mixing and obtains a leather edge effect with multiple color separations; however, for special decorative effects (such as antique wire drawing effects), there is still room for improvement. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies in the above-mentioned prior art, and provide an edge oil composition with a wire drawing effect, as well as the preparation method and application of the edge oil composition.

[0004] To achieve the above purpose, the present invention is realized by adopting the following technical solutions:

[0005] An edge oil composition with a wire drawing effect, the edge oil composition includes the following components in weight percentages: polyurethane resin 10-20%, diluent 30-50%, defoaming agent 0.2-0.5%, thickening agent 0.5-2%, pigment 2-5%, additive 5-10%, water 30-40%.

[0006] In the present invention, a further preferred solution is that the diluent is propylene glycol and / or alcohol ester-12.

[0007] In the present invention, a further preferred solution is that the mass ratio of propylene glycol to alcohol ester-12 is 6-10.

[0008] In the present invention, a further preferred solution is that the additive is hand sanitizer and / or soapy water.

[0009] In the present invention, a further preferred solution is that the edge oil composition includes the following components in weight percentages: polyurethane resin 10%, diluent 50%, defoaming agent 0.2-0.5%, thickening agent 0.5-0.8%, pigment 2%, additive 7%, water 30%.

[0010] The present invention also provides a preparation method of the edge oil composition as described above, including the following steps:

[0011] S1: Add the formulated amount of polyurethane resin, water, and diluent into a container, mix evenly to obtain mixture A.

[0012] S2: Add the formulated amount of defoamer, thickener, additive, and pigment into mixture A, mix evenly to obtain mixture B.

[0013] S3: Perform defoaming treatment on mixture B to obtain the product.

[0014] In the present invention, a further preferred solution is that step S1 is specifically: sequentially add the formulated amount of polyurethane resin, water, and diluent into a container, and then stir at a speed of 400 - 600 r / min for 5 - 10 min to mix each component evenly to obtain mixture A.

[0015] In the present invention, a further preferred solution is that step S2 is specifically: sequentially add the formulated amount of defoamer, thickener, additive, and pigment into mixture A, and then stir at a speed of 600 - 800 r / min for 5 - 10 min to mix each component evenly to obtain mixture B.

[0016] In the present invention, a further preferred solution is that in step S3, a vacuum defoaming device is used for defoaming treatment.

[0017] The present invention also provides the application of the edge coating composition in leather decoration processing.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: By using the edge coating composition of the present invention, the edge coating can have good color fixing effect, flexibility, and adhesion, and the drying speed of the edge coating composition is easy to adjust and control, which is beneficial to the subsequent wire drawing decoration operation; the preparation method of the edge coating composition of the present invention is simple and easy to operate, and is convenient for industrial production and application.

[0019] Description of the Drawings

[0020] Figure 1 It is a photo of leather with the edge coating corresponding to Experimental Example 1 attached. Detailed Embodiments

[0021] Next, the present invention will be further described in combination with specific embodiments. It should be noted that, on the premise of no conflict, the following described embodiments or technical features can be arbitrarily combined with each other to form new embodiments. Except as otherwise specified, 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 the present application, and should not be construed as limiting the protection scope of the present application.

[0022] An edge oil composition with a wire drawing effect, the edge oil composition comprising the following components by weight percentage: polyurethane resin 10-20%, diluent 30-50%, defoamer 0.2-0.5%, thickener 0.5-2%, pigment 2-5%, additive 5-10%, water 30-40%.

[0023] In the composition of the present invention, polyurethane resin is used as the main film-forming component, which can ensure the flexibility and adhesion of the edge oil composition, play a good role in fixing color, and the added diluent can slow down the drying speed of the edge oil, facilitating subsequent wire drawing operations.

[0024] In order to effectively adjust and control the viscosity and drying speed of the edge oil composition, the diluent is propylene glycol and / or alcohol ester-12. A further preferred solution is that the mass ratio of propylene glycol to alcohol ester-12 is 6-10.

[0025] In order to more conveniently perform the wire drawing operation of the subsequent edge oil, hand sanitizer and / or soapy water can be used as additives, which can increase the simulation of the wire drawing effect.

[0026] In the present invention, a further preferred solution is that the edge oil composition comprises the following components by weight percentage: polyurethane resin 10%, diluent 50%, defoamer 0.2-0.5%, thickener 0.5-0.8%, pigment 2%, additive 7%, water 30%.

[0027] The present invention also provides a preparation method of the edge oil composition as described above, comprising the following steps:

[0028] S1: Add the formulated amount of polyurethane resin, water and diluent into a container, mix evenly to obtain mixture A;

[0029] S2: Add the formulated amount of defoamer, thickener, additive and pigment to mixture A, mix evenly to obtain mixture B;

[0030] S3: Perform defoaming treatment on mixture B to obtain the product.

[0031] In the present invention, a further preferred solution is that step S1 is specifically: sequentially add the formulated amount of polyurethane resin, water and diluent into a container, and then stir at a speed of 400-600 r / min for 5-10 min to mix each component evenly to obtain mixture A.

[0032] In the present invention, a further preferred solution is that step S2 is specifically: sequentially add the formulated amount of defoamer, thickener, additive and pigment to mixture A, and then stir at a speed of 600-800 r / min for 5-10 min to mix each component evenly to obtain mixture B.

[0033] In the present invention, a further preferred solution is that in step S3, a vacuum degassing device is used for degassing treatment.

[0034] The present invention also provides an application of the edge coating composition in leather decoration processing.

[0035] For each component in Examples 1-4, they were all purchased from the open market. Among them, the polyurethane resin was from Kekong Materials Co., Ltd. (model "CY-1023H"), the defoaming agent was from BYK Chemie GmbH (model "BYK024"), the thickening agent was from Rohm and Haas Company in the United States (model "ASE-60"), and the additive was soapy water with a pH value of 8.5.

[0036] Example 1

[0037] An edge coating composition with a wire drawing effect, the edge coating composition includes the following components in weight percentages: polyurethane resin 10%, diluent 50%, defoaming agent 0.2%, thickening agent 0.5%, pigment 2%, additive 7%, water 30%;

[0038] The diluent is propylene glycol and alcohol ester-12, and the mass ratio of propylene glycol to alcohol ester-12 is 6;

[0039] The preparation method of the edge coating composition includes the following steps:

[0040] S1: Add the formulated amounts of polyurethane resin, water and diluent into a container in sequence, and then stir at a speed of 400 r / min for 5 min to mix the components evenly to obtain mixture A

[0041] S2: Add the formulated amounts of defoaming agent, thickening agent, additive and pigment into mixture A in sequence, and then stir at a speed of 600 r / min for 10 min to mix the components evenly to obtain mixture B;

[0042] S3: Perform degassing treatment on mixture B in a vacuum degassing device to obtain the product.

[0043] Example 2

[0044] An edge coating composition with a wire drawing effect, the edge coating composition includes the following components in weight percentages: polyurethane resin 20%, diluent 30%, defoaming agent 0.5%, thickening agent 0.8%, pigment 4%, additive 5%, water 40%;

[0045] The diluent is propylene glycol and alcohol ester-12, and the mass ratio of propylene glycol to alcohol ester-12 is 10;

[0046] The preparation method of the edge coating composition includes the following steps:

[0047] S1: Add the formulated amount of polyurethane resin, water, and diluent into a container in sequence, and then stir at a speed of 400 r / min for 5 min to uniformly mix each component, obtaining mixture A;

[0048] S2: Add the formulated amount of defoamer, thickener, additive, and pigment into mixture A in sequence, and then stir at a speed of 600 r / min for 10 min to uniformly mix each component, obtaining mixture B;

[0049] S3: Perform defoaming treatment on mixture B in a vacuum defoaming device, and that's it.

[0050] Example 3

[0051] An edge oil composition with a wire drawing effect, the edge oil composition includes the following components by weight percentage: 15% of polyurethane resin, 35% of diluent, 0.4% of defoamer, 1.6% of thickener, 3% of pigment, 8% of additive, 37% of water; the specific composition and preparation method of the remaining components are the same as those in Example 1.

[0052] Example 4

[0053] An edge oil composition with a wire drawing effect, the edge oil composition includes the following components by weight percentage: 12% of polyurethane resin, 38% of diluent, 0.5% of defoamer, 2% of thickener, 4% of pigment, 8% of additive, 35.5% of water; the diluent is propylene glycol and alcohol ester - 12, and the mass ratio of propylene glycol to alcohol ester - 12 is 7; the specific composition and preparation method of the remaining components are the same as those in Example 1.

[0054] Experimental Examples 1 - 5

[0055] Take the edge oil compositions of Examples 1 - 4, apply the edge oil composition on the edge of the leather product. After it is semi - dry, gently wipe it evenly with a scouring pad for wire drawing. After drying, the leather attached with the edge oil coatings of Experimental Examples 1 - 4 (where Experimental Example 1 corresponds to Example 1, Experimental Example 2 corresponds to Example 2, Experimental Example 3 corresponds to Example 3, and Experimental Example 4 corresponds to Example 4) is obtained;

[0056] Take the edge oil composition of Example 1, apply the edge oil composition on the edge of the leather product. After it is semi - dry, gently wipe it evenly with a scouring pad for wire drawing. After drying, then cover it with a matte or medium - gloss transparent edge oil. After it dries, the leather attached with the edge oil coating of Experimental Example 5 is obtained;

[0057] Observing the appearance of the edge oil coatings corresponding to Experimental Examples 1-5, all presented a clear antique wire drawing effect. Among them, the effect of Example 5 was the best, followed by Example 1, and the effects of the remaining examples were slightly worse. Then, the adhesion fastness of the coatings of the above Experimental Examples 1-5 was tested by the method in the standard document "GB / T4689.20-1996 Determination Method for Adhesion Fastness of Leather Coatings", and the measured results are as follows in the table:

[0058] Experimental Example Experimental Example 1 Experimental Example 2 Experimental Example 3 Experimental Example 4 Experimental Example 5 Adhesion Fastness 39 N / cm 34 N / cm 32 N / cm 35 N / cm 45 N / cm

[0059] It can be seen from the data in the above table that the adhesion fastness of each experimental example is greater than 30 N / cm, and the adhesion is good. Among them, the adhesion fastness data of Experimental Example 5 is the best, which is due to the further increase of the edge oil topcoat.

[0060] Accelerated test

[0061] The edge oil compositions of Examples 1-5 were used for 30 days in the following environment: the environmental temperature was 28 °C and the humidity was 50%. The leather strips were placed in a constant temperature and humidity (bending) test machine. After completion, the appearance of the edge oil coatings was observed. Among them, Experimental Examples 1 and 5 still had a very clear antique wire drawing effect, and the edge oil coatings of other experimental examples also had a relatively clear antique wire drawing effect, but the clarity was slightly lower than that of Experimental Examples 1 and 5. The adhesion fastness of the coatings of the above Experimental Examples 1-5 was tested by the method in the standard document "GB / T4689.20-1996 Determination Method for Adhesion Fastness of Leather Coatings", and the measured results are as follows in the table:

[0062] Experimental Example Experimental Example 1 Experimental Example 2 Experimental Example 3 Experimental Example 4 Experimental Example 5 Adhesion Fastness 37 N / cm 31 N / cm 30 N / cm 33 N / cm 43 N / cm

[0063] It can be seen from the data in the above table that after the simulated environment test (accelerated test), the adhesion fastness of each experimental example is still greater than 30 N / cm, and the adhesion is good. Among them, the adhesion fastness data of Experimental Example 5 is the best, followed by Experimental Example 1, and the reduction amplitudes of Experimental Example 5 and Experimental Example 1 are the smallest. It can be seen that the edge oil compositions of the embodiments of the present invention have good stability and adhesion, can present a good antique wire drawing effect after processing, have a long service life and are wear-resistant.

[0064] Finally, it should be noted that the above embodiments are only the preferred embodiment modes of the present invention, and the scope of protection of the present invention cannot be limited by this. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention belong to the scope of protection required by the present invention.

Claims

1. An edge oil composition with a wire drawing effect, characterized in that: The edge oil composition comprises the following components in percentage by weight: 10-20% polyurethane resin, 30-50% diluent, 0.2-0.5% defoamer, 0.5-2% thickener, 2-5% pigment, 5-10% additive and 30-40% water.

2. The edge oil composition according to claim 1, characterized in that: The diluent is propylene glycol and / or propylene glycol ester-12.

3. The edge oil composition according to claim 1, characterized in that: The mass ratio of the propylene glycol to the alcohol ester-12 is 6-10.

4. The edge oil composition according to claim 1, characterized in that: The additive is hand soap and / or soap water.

5. The edge oil composition according to claim 1, characterized in that: The edge oil composition comprises the following components in percentage by weight: 10% polyurethane resin, 50% diluent, 0.2-0.5% defoamer, 0.5-0.8% thickener, 2% pigment, 7% additive and 30% water.

6. A method for preparing the edge oil composition according to any one of claims 1 to 5, characterized in that The steps include: S1: Add the formulated amount of polyurethane resin, water and diluent into a container and mix them evenly to obtain a mixture A; S2: adding a formulated amount of defoamer, thickener, additive and pigment to mixture A, and mixing well to obtain mixture B; S3: Degassing the mixture B to obtain.

7. The preparation method according to claim 6, characterized in that: The step S1 specifically includes: adding the formulated amount of polyurethane resin, water and diluent into a container in sequence, and then stirring at a speed of 400-600 r / min for 5-10 minutes to mix the components evenly, to obtain a mixture A.

8. The preparation method according to claim 6, characterized in that: The step S2 specifically comprises: adding the defoamer, thickener, additive and pigment in the formula amount to the mixture A in sequence, and then stirring at a speed of 600-800 r / min for 5-10 min to mix the components evenly, to obtain the mixture B.

9. The preparation method according to claim 6, characterized in that: In the step S3, a vacuum degassing device is used to perform degassing treatment.

10. Use of the edge oil composition as described in any one of claims 1 to 5 in leather decoration processing.

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