Vamp modification process for school constant-wear leather shoes

Abstract

According to the process for modifying the vamp of the school common wear leather shoe, the vamp is effectively subjected to color changing treatment through color changing, scorching, color fixing and finish paint spraying treatment, so that the appearance of the leather shoe is greatly improved, and the physical performance of the leather shoe is also improved. According to the color changing process, the color changing process is simplified, the shoemaking speed is greatly increased, labor is reduced, and the shoemaking cost is reduced; after color changing, the vamp is bright and colorful in effect, good in fastness and not prone to fading, and finished shoes are high in gloss and strong in wax feeling.

Description

Technical Field

[0001] The present application relates to the field of shoemaking technology, and in particular to a process for modifying the uppers of leather shoes for lieutenant's uniform. Background Art

[0002] With the development of economy and the improvement of people's living standards, more and more requirements are placed on the appearance of shoes, and color is a very important part of the appearance of shoes. Existing leather shoes have few colors and are easy to fade and discolor; the finished shoes are not very shiny and easy to break and whiten, and the process is complicated. The simplest color change process is to use color change shoe polish to brush, polish, and burn multiple times to complete the color change; the color is not bright enough, the fastness is not very good, and it is easy to fade and peel. In view of this, it is necessary to provide an excellent leather shoe color change process to meet people's needs. Summary of the invention

[0003] The present application provides a process for modifying the upper of a lieutenant's leather shoes for daily wear to solve the problems existing in the related art. The technical solution is as follows:

[0004] In a first aspect, the present application provides a process for modifying the upper of a lieutenant's uniform leather shoe, comprising the following steps:

[0005] Upper treatment: Clean and treat the upper;

[0006] Color change: Form a layer of color change agent coating on the outside of the upper and dry it;

[0007] Burnt: Use burnt wax to create a burnt effect;

[0008] Color fixing: fix the color of the color changing agent coating;

[0009] Spray topcoat: Spray topcoat on the color-changing agent coating after color fixing to obtain a modified shoe upper.

[0010] In one embodiment, during the shoe upper treatment process, a cleaning agent is used for cleaning, a treating agent is used for treatment, and then drying is performed for 5-10 minutes.

[0011] In one embodiment, the cleaning agent comprises the following components in parts by weight: 48-68 parts of ethanol, 10-15 parts of isopropanol, 20-40 parts of deionized water, 0.5-2 parts by weight of ammonia water and 0.5-2 parts by weight of sodium dodecylbenzene sulfonate.

[0012] In one embodiment, the treatment agent comprises the following components in parts by weight: 15-25 parts of hydroxyl silicone oil emulsion, 15-25 parts of polyoxyethylene ether, 1-3 parts of fluorocarbon substrate wetting agent, 35-45 parts of ethanol, and 15-25 parts of deionized water.

[0013] In one embodiment, the color changing agent includes the following components in parts by weight: 5-10 parts of curcumin, 10-20 parts of chestnut shell pigment, 5-10 parts of lycopene, 10-20 parts of N-methylpyrrolidone, 2-3 parts of triglyceride, 4-6 parts of lauryl laurate, 1-3 parts of alkylphenol polyoxyethylene ether, 2-5 parts of nano-composite low-chrome tanning aid, 1-2 parts of fluorocarbon base wetting agent, and 40-50 parts of deionized water.

[0014] In one embodiment, the color-changing agent coating has a thickness of 0.5-0.7 mm.

[0015] In one embodiment, the toe and the heel of the shoe are sprayed once and then dried, and then the whole shoe is sprayed once; the drying condition is drying at 60-70° C. for 5-10 minutes.

[0016] In one embodiment, the scorching treatment is performed using a scorching machine, and the rotation speed of the scorching machine is 1000-1500 rpm.

[0017] In one embodiment, a color fixing agent is used for color fixing, and the color fixing agent comprises the following components in parts by weight: 15-25 parts of aliphatic polyurethane, 35-45 parts of ethanol, 35-45 parts of deionized water, and 2-3.5 parts of a silane coupling agent.

[0018] In one embodiment, the thickness of the color fixing agent is 0.1-0.3 mm; the color fixing agent is dried at 60-70° C. for 3-8 min.

[0019] In one embodiment, the topcoat includes the following components in parts by weight: 15-25 parts of deionized water, 25-35 parts of polyurethane resin, 10-20 parts of acrylic resin, 40-50 parts of crystal wax, 25-35 parts of carnauba wax, 1-3 parts of silicone leveling agent, and 2-4 parts of fluorocarbon substrate wetting agent.

[0020] In one embodiment, the topcoat has a thickness of 0.5-0.6 mm.

[0021] In one embodiment, the process further includes applying shoe polish to the shoe upper after the color change, drying, and polishing.

[0022] In one embodiment, the drying condition is: drying at 60-70° C. for 5-10 min.

[0023] In one embodiment, the polishing process is: polishing with a polishing machine cloth wheel at a rotation speed of about 500.

[0024] In a second aspect, an embodiment of the present application provides a color-changed leather shoe, which is obtained by changing the color of the upper of the lieutenant's uniform leather shoe by any of the above-mentioned processes for modifying the upper of the lieutenant's uniform leather shoe.

[0025] The advantages or beneficial effects of the above technical solution include at least:

[0026] The upper modification process of the school lieutenant's uniform leather shoes of the present application effectively changes the color of the upper through color change, scorching, color fixing and spraying topcoat treatment, which not only greatly improves the appearance of the leather shoes, but also improves the physical properties of the leather shoes. The present application simplifies the color change process, greatly improves the shoemaking speed, reduces labor, and reduces the shoemaking cost; after the color change, the upper effect is bright and colorful, with good fastness and not easy to fade, and the finished shoes have high gloss and strong wax feeling.

[0027] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present application will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0029] Figure 1 The appearance of leather shoes before they are processed;

[0030] Figure 2-Figure 6 This is a picture of the appearance of leather shoes at different stages of treatment;

[0031] Figure 7 This is the appearance of the leather shoes after color change. DETAILED DESCRIPTION

[0032] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present application. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0033] During use, leather shoes may lose their original luster and color due to wear, fading or aging; therefore, it is hoped that they can be restored to their original state, or even made brand new; or because of personal preference, the color of the leather shoes may be changed. This can all be achieved by changing the color of the leather shoes. However, there is no unified standard for the existing color changing methods, and it is difficult to obtain the desired color changing effect and maintain the stability after the color change. Therefore, the present application provides a process for modifying the upper of the leather shoes for the lieutenant's uniform, simplifies the color changing process, and effectively changes the color of the upper, which not only greatly improves the appearance of the leather shoes, but also improves the physical properties of the leather shoes.

[0034] A process for modifying the uppers of leather shoes for lieutenant's uniforms, comprising the following steps:

[0035] Upper treatment: Clean and treat the upper;

[0036] Color change: Form a layer of color change agent coating on the outside of the upper and dry it;

[0037] Burnt: Use burnt wax to create a burnt effect;

[0038] Color fixing: fix the color of the color changing agent coating;

[0039] Spray topcoat: Spray topcoat on the color-changing agent coating after color fixing to obtain a modified shoe upper.

[0040] The present application can change the color of leather shoes by cleaning and treating the upper of leather shoes, changing the color, burning, fixing the color, and spraying the upper with a topcoat. A simplified color change process is provided. According to the color change process of the present application, the appearance of the leather shoes can be greatly improved, and the physical properties of the leather shoes can also be improved. The color change effect is bright and colorful, with good fastness and not easy to fade, and the finished shoes have high gloss and strong wax feeling.

[0041] In one embodiment, during the shoe upper treatment process, a cleaning agent is used for cleaning, a treating agent is used for treating, and then drying is performed for 5-10 minutes. The main purpose of the cleaning agent is to effectively clean the wax, oil stains, and marks on the surface of the leather shoes.

[0042] In one embodiment, the cleaning agent comprises the following components by weight: 48-68 parts of ethanol, 10-15 parts of isopropanol, 20-40 parts of deionized water, 0.5-2 parts of ammonia water and 0.5-2 parts of sodium dodecylbenzene sulfonate. The cleaning agent has strong cleaning power and fast drying speed, and the surface of the leather shoes is dry after cleaning.

[0043] In one embodiment, the treatment agent comprises the following components by weight: 15-25 parts of hydroxyl silicone oil emulsion, 15-25 parts of polyoxyethylene ether, 1-3 parts of fluorocarbon substrate wetting agent, 35-45 parts of ethanol, and 15-25 parts of deionized water. The upper treated with the treatment agent is more uniform and soft as a whole, reduces the difference in parts, and improves the uniformity of color change and color fastness. The surface of the upper treated with the cleaning agent and the treatment agent is clean and more uniform and soft as a whole.

[0044] In one embodiment, the color changing is performed by spraying a color changing agent using a spraying device to form a smooth color changing coating on the outside of the shoe upper.

[0045] In one embodiment, the color-changing agent coating has a thickness of 0.5-0.7 mm.

[0046] In one embodiment, the toe and the heel of the shoe are sprayed once and then dried, and then the whole shoe is sprayed once; the drying condition is to dry at 60-70° C. for 5-10 minutes. Through the above spraying, the color of the sprayed color-changing agent is uniform and color difference is not easy to occur.

[0047] In one embodiment, the color changing agent includes the following components in parts by weight: 5-10 parts of curcumin, 10-20 parts of chestnut shell pigment, 5-10 parts of lycopene, 10-20 parts of N-methylpyrrolidone, 2-3 parts of triglyceride, 4-6 parts of lauryl laurate, 1-3 parts of alkylphenol polyoxyethylene ether, 2-5 parts of nano-composite low-chrome tanning aid, 1-2 parts of fluorocarbon base wetting agent, and 40-50 parts of deionized water.

[0048] The color-changing agent can be purchased or configured for use according to preference. In the present embodiment, the color-changing agent uses curcumin, chestnut shell pigment, and lycopene as color pigments, and N-methyl pyrrolidone, triglycerides, lauryl laurate, alkylphenol polyoxyethylene ether, nano-composite low-chrome tanning aid, fluorocarbon substrate wetting agent and deionized water as auxiliary materials. Curcumin, chestnut shell pigment, and lycopene are all natural dyes with good environmental compatibility and natural pollution-free properties, so that the color-changing agent is safe and environmentally friendly. Alkylphenol polyoxyethylene ether improves the stability of the pigment and its acid and alkali resistance, N-methyl pyrrolidone improves the stability and permeability of the pigment, and the coordinated effect of the nano-composite low-chrome tanning aid improves the coloring stability, thereby further improving the abrasion resistance, water washing resistance and sunlight resistance of the color-changing agent. Triglycerides and lauryl laurate are added to improve the effect of the color agent on leather shoes. The leather shoes can be adjusted in color according to the color change requirements to increase or decrease the color concentration, and a single or multiple natural pigments can also be added to adjust the color as needed.

[0049] After using the color changing agent of the present application, the color is bright, the chromaticity is uniform and the color is firm. The fading test (aging machine for 30 hours) shows that the color does not fade over time and the color change resistance is excellent.

[0050] In one embodiment, the scorching treatment is performed using a scorching machine, and the rotation speed of the scorching machine is 1000-1500 rpm.

[0051] The scorching effect is made according to the color depth of the leather and the shoe style. Generally, the scorching effect is slightly heavier at the head and tail to create a layered and three-dimensional effect. The speed of the scorching wax machine is about 1000-1500 revolutions, and the scorching wax is applied once every 3 pairs of shoes on average. In this embodiment, the motor power of the scorching wax machine varies, and the speed can be adjusted appropriately. The scorching wax machine is put into the double-bottom oven, and the oven temperature is about 60°C.

[0052] In one embodiment, a color fixing agent is used for color fixing, and the color fixing agent includes the following components by weight: 15-25 parts of aliphatic polyurethane, 35-45 parts of ethanol, 35-45 parts of deionized water, and 2-3.5 parts of a crosslinking agent. The color fixing agent is mainly composed of aliphatic polyurethane with good flexibility and fastness and a silane coupling agent. The color fixing agent can effectively improve light resistance and washing resistance, enhance color brightness and depth, and increase water resistance.

[0053] In one embodiment, the thickness of the color fixing agent is 0.1-0.3 mm; the color fixing agent is dried at 60-70° C. for 3-8 minutes after spraying. When spraying, just lightly spray to cover the color-changing layer, so the thickness is 0.1-0.3 mm, with excellent color fixing effect and not easy to turn white.

[0054] In one embodiment, the topcoat includes the following components in parts by weight: 15-25 parts of deionized water, 25-35 parts of polyurethane resin, 10-20 parts of acrylic resin, 40-50 parts of crystal wax, 25-35 parts of carnauba wax, 1-3 parts of silicone leveling agent, and 2-4 parts of fluorocarbon substrate wetting agent.

[0055] In one embodiment, the thickness of the topcoat is 0.5-0.6 mm. The topcoat is mainly used for brightening and protection. The topcoat of the present application has high gloss, strong wax feeling, and is not easy to turn white; and the topcoat is a high-gloss powder wax water, which enhances the waterproofness of the finishing layer, enhances the gloss and clarity of the leather shoes, makes the upper smooth and delicate, and improves the wear resistance and scratch resistance. Aging detection (UV light 9h) does not fade or yellow, and has excellent aging resistance.

[0056] In one embodiment, the method further comprises applying shoe polish to the shoe upper after the color change, drying, and polishing. Preferably, the shoe polish of the present application is a hand-feel shoe polish, which mainly provides a smooth hand feel.

[0057] In one embodiment, the drying condition is: drying at 60-70° C. for 5-10 min.

[0058] In one embodiment, the polishing process is: polishing with a polishing machine cloth wheel at a speed of 450-550. After polishing, the layers are clear, and the smoothness and oily wax feeling are improved.

[0059] The embodiment of the present application provides a color-changed leather shoe, which is obtained by changing the color of the upper of the lieutenant's uniform leather shoe by any of the above-mentioned processes for modifying the upper of the lieutenant's uniform leather shoe.

[0060] The following is a further description with reference to specific embodiments.

[0061] Example 1

[0062] ① Upper treatment: Use a cleaning agent and a treating agent to clean and treat the uppers of leather shoes made of leather, and dry them for 8 minutes after treatment; the cleaning agent is composed of 48 parts by weight of ethanol, 10 parts by weight of isopropanol, 40 parts by weight of deionized water, 1 part by weight of ammonia water and 1 part by weight of sodium dodecylbenzene sulfonate; the treating agent is composed of 20 parts by weight of hydroxyl silicone emulsion softener (the main component of the softener is), 20 parts by weight of polyoxyethylene ether, 2 parts by weight of fluorocarbon base wetting agent, 40 parts by weight of ethanol, and 20 parts by weight of deionized water; leather shoes made of leather such as Figure 1 As shown, the leather shoes after the upper treatment are as follows Figure 2 As shown;

[0063] ② Color change: spray the color change agent on the surface of the upper with a spraying device to form a 0.6mm flat color change coating on the outside of the upper, and then dry it at 65°C for 8 minutes; the color change agent includes the following raw materials in parts by weight: 8 parts of curcumin, 15 parts of chestnut shell pigment, 7 parts of lycopene, 15 parts of N-methyl pyrrolidone, 2.5 parts of triglyceride, 5 parts of lauryl laurate, 2 parts of alkylphenol polyoxyethylene ether, 3.5 parts of nano-composite low-chrome tanning aid, 1.5 parts of fluorocarbon base material wetting agent, and 45 parts of deionized water; the shoes after color change are as follows Figure 3 As shown;

[0064] ③ Burning: Use burnt wax to make a burnt effect in a burnt machine. The speed of the burnt machine is 1000-1500 rpm. The head and tail should be slightly heavier to create a layered and three-dimensional effect. Figure 4 As shown;

[0065] ④ Fixing: Spray the color fixing agent on the charred shoes, spray the color fixing agent after 0.2mm, and then dry it at 65℃ for 5 minutes; the color fixing agent is composed of 20 parts by weight of aliphatic polyurethane, 40 parts by weight of ethanol, 40 parts by weight of deionized water, and 3 parts by weight of silane coupling agent; the shoes after color fixing treatment are as follows Figure 5 As shown;

[0066] ⑤ Spray topcoat: Use spraying equipment to spray a 0.5mm topcoat on the outside of the color-changing layer. The topcoat consists of 20 parts by weight of deionized water, 30 parts by weight of polyurethane resin, 15 parts by weight of acrylic resin, 45 parts by weight of crystal wax, 30 parts by weight of Brazilian palm wax, 2 parts by weight of silicone leveling agent, and 3 parts by weight of fluorocarbon base wetting agent; dry; the shoes treated with topcoat are as follows: Figure 6 As shown;

[0067] ⑥ Apply shoe polish to the shoes sprayed with topcoat, dry them at 65℃ for 7min, and polish them with a polishing machine cloth wheel at 500rpm to obtain the color-changed leather shoes; Figure 7The fading test (30h in an anti-aging machine) shows that the product does not fade over time, and has excellent color change resistance; the aging test (9h in ultraviolet light) shows that the product does not fade or turn yellow, and has excellent aging resistance.

[0068] Example 2

[0069] ① Upper treatment: Use a cleaning agent and a treating agent to clean and treat the uppers of leather shoes made of leather, and dry for 5 minutes after treatment; the cleaning agent is composed of 58 parts by weight of ethanol, 15 parts by weight of isopropanol, 25 parts by weight of deionized water, 0.5 parts by weight of ammonia water and 2 parts by weight of sodium dodecylbenzene sulfonate; the treating agent is composed of 15 parts by weight of hydroxyl silicone oil emulsion, 25 parts by weight of polyoxyethylene ether, 1 part by weight of fluorocarbon base material wetting agent, 45 parts by weight of ethanol, and 15 parts by weight of deionized water;

[0070] ② Color change: spray the color change agent on the surface of the upper with a spraying device to form a 0.5mm flat color change coating on the outside of the upper, and then dry it at 60°C for 10 minutes; the color change agent includes the following raw materials in parts by weight: 5 parts of curcumin, 20 parts of chestnut shell pigment, 5 parts of lycopene, 10 parts of N-methylpyrrolidone, 3 parts of triglyceride, 6 parts of lauryl laurate, 3 parts of alkylphenol polyoxyethylene ether, 2 parts of nano-composite low-chrome tanning aid, 2 parts of fluorocarbon substrate wetting agent, and 40 parts of deionized water;

[0071] ③Scorch: Use burnt wax to create a scorched effect on a scorch rubbing machine. The speed of the scorch rubbing machine is 1000-1500 rpm. The head and tail should be slightly heavier to create a layered and three-dimensional effect.

[0072] ④ Fixing: spray the color fixing agent on the charred shoes, spray the color fixing agent after 0.1mm, and then dry it at 60℃ for 5min; the color fixing agent is composed of 25 parts by weight of aliphatic polyurethane, 45 parts by weight of ethanol, 45 parts by weight of deionized water, and 2 parts by weight of silane coupling agent;

[0073] ⑤ Spray topcoat: Use spraying equipment to spray a layer of 0.5mm topcoat on the outside of the color-changing layer. The topcoat consists of 15 parts by weight of deionized water, 35 parts by weight of polyurethane resin, 20 parts by weight of acrylic resin, 50 parts by weight of crystal wax, 35 parts by weight of Brazilian palm wax, 3 parts by weight of silicone leveling agent, and 2 parts by weight of fluorocarbon substrate wetting agent; dry;

[0074] ⑥ Apply shoe polish to the shoes sprayed with topcoat, dry them at 70°C for 5 minutes, and polish them with a polishing machine cloth wheel at 500 rotation speed to obtain color-changed leather shoes.

[0075] Example 3

[0076] ① Upper treatment: Use a cleaning agent and a treating agent to clean and treat the uppers of leather shoes made of leather, and dry for 10 minutes after treatment; the cleaning agent is composed of 68 parts by weight of ethanol, 10 parts by weight of isopropanol, 20 parts by weight of deionized water, 2 parts by weight of ammonia water and 0.5 parts by weight of sodium dodecylbenzene sulfonate; the treating agent is composed of 25 parts by weight of hydroxyl silicone oil emulsion, 15 parts by weight of polyoxyethylene ether, 3 parts by weight of fluorocarbon substrate wetting agent, 35 parts by weight of ethanol, and 25 parts by weight of deionized water;

[0077] ② Color change: spray the color change agent on the surface of the upper with a spraying device to form a 0.7mm flat color change coating on the outside of the upper, and then dry it at 70°C for 5 minutes; the color change agent includes the following raw materials in parts by weight: 10 parts of curcumin, 10 parts of chestnut shell pigment, 10 parts of lycopene, 20 parts of N-methylpyrrolidone, 2 parts of triglyceride, 4 parts of lauryl laurate, 1 part of alkylphenol polyoxyethylene ether, 5 parts of nano-composite low-chrome tanning aid, 1 part of fluorocarbon substrate wetting agent, and 50 parts of deionized water;

[0078] ③Scorch: Use burnt wax to create a scorched effect on a scorch rubbing machine. The speed of the scorch rubbing machine is 1000-1500 rpm. The head and tail should be slightly heavier to create a layered and three-dimensional effect.

[0079] ④ Fixing: spray the color fixing agent on the charred shoes, spray the color fixing agent after 0.3mm, and then dry it at 70℃ for 5min; the color fixing agent is composed of 15 parts by weight of aliphatic polyurethane, 35 parts by weight of ethanol, 35 parts by weight of deionized water, and 3.5 parts by weight of silane coupling agent;

[0080] ⑤ Spray topcoat: Use spraying equipment to spray a layer of 0.6mm topcoat on the outside of the color-changing layer. The topcoat consists of 25 parts by weight of deionized water, 25 parts by weight of polyurethane resin, 10 parts by weight of acrylic resin, 40 parts by weight of crystal wax, 25 parts by weight of Brazilian palm wax, 1 part by weight of silicone leveling agent, and 4 parts by weight of fluorocarbon substrate wetting agent; dry;

[0081] ⑥ Apply shoe polish to the shoes that have been sprayed with topcoat, then dry them at 60°C for 10 minutes, and polish them with a polishing machine cloth wheel at 500 rotation speed to obtain color-changed leather shoes.

[0082] In summary, the present application effectively changes the color of the shoe upper through color change, scorching, color fixing and spraying topcoat, which not only greatly improves the appearance of the leather shoes, but also improves the physical properties of the leather shoes. The present application simplifies the color change process, greatly improves the shoemaking speed, reduces labor, and reduces the cost of shoemaking; after the color change, the shoe upper has a bright and colorful effect, good fastness and is not easy to fade, and the finished shoes have a high gloss and a strong waxy feel.

[0083] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0084] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0085] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A process for modifying the upper of leather shoes for school lieutenants' uniforms, characterized in that: The following steps are involved: Upper treatment: Clean and treat the upper; Color change: Form a layer of color change agent coating on the outside of the upper and dry it; Burnt: Use burnt wax to create a burnt effect; Color fixing: fix the color changing agent coating; Spray topcoat: Spray topcoat on the color-changing agent coating after color fixing to obtain a modified shoe upper.

2. The process for modifying the upper of the leather shoes for the lieutenant's uniform according to claim 1 is characterized in that: During the shoe upper treatment process, use a detergent to clean and a treatment agent to treat; then dry for 5-10 minutes; The cleaning agent comprises the following components in parts by weight: 48-68 parts of ethanol, 10-15 parts of isopropanol, 20-40 parts of deionized water, 0.5-2 parts of ammonia water and 0.5-2 parts of sodium dodecylbenzene sulfonate; The treatment agent comprises the following components in parts by weight: 15-25 parts of hydroxyl silicone oil emulsion, 15-25 parts of polyoxyethylene ether, 1-3 parts of fluorocarbon substrate wetting agent, 35-45 parts of ethanol, and 15-25 parts of deionized water.

3. The process for modifying the upper of the leather shoes for the lieutenant's uniform according to claim 1 is characterized in that: The color changing agent includes the following components in parts by weight: 5-10 parts of curcumin, 10-20 parts of chestnut shell pigment, 5-10 parts of lycopene, 10-20 parts of N-methylpyrrolidone, 2-3 parts of triglyceride, 4-6 parts of lauryl laurate, 1-3 parts of alkylphenol polyoxyethylene ether, 2-5 parts of nano-composite low-chrome tanning aid, 1-2 parts of fluorocarbon base wetting agent, and 40-50 parts of deionized water.

4. The process for modifying the upper of the leather shoes for the lieutenant's uniform according to claim 1 is characterized in that: The thickness of the color-changing agent coating is 0.5-0.7mm; First spray the toe and the heel of the shoe once and dry it, then spray the whole shoe once; the drying condition is to dry it at 60-70℃ for 5-10min.

5. The process for modifying the upper of the leather shoes for the lieutenant's uniform according to claim 1 is characterized in that: The scorching treatment is carried out using a scorching machine, and the rotation speed of the scorching machine is 1000-1500 rpm.

6. The process for modifying the upper of the leather shoes for the lieutenant's uniform according to claim 1 is characterized in that: The color fixing agent is used for color fixing, and the color fixing agent comprises the following components in parts by weight: 15-25 parts of aliphatic polyurethane, 35-45 parts of ethanol, 35-45 parts of deionized water, and 2-3.5 parts of silane coupling agent.

7. The process for modifying the upper of the leather shoes for the lieutenant's uniform according to claim 1 is characterized in that: The thickness of the color fixing agent is 0.1-0.3 mm; the color fixing agent is dried at 60-70° C. for 3-8 min.

8. The process for modifying the upper of the leather shoes for the lieutenant's uniform according to claim 1 is characterized in that: The topcoat comprises the following components in parts by weight: 15-25 parts of deionized water, 25-35 parts of polyurethane resin, 10-20 parts of acrylic resin, 40-50 parts of crystal wax, 25-35 parts of carnauba wax, 1-3 parts of organosilicon leveling agent, and 2-4 parts of fluorocarbon substrate wetting agent; The thickness of the topcoat is 05-0.6mm.

9. The process for modifying the upper of the leather shoes for the lieutenant's uniform according to claim 1 is characterized in that: It also includes applying shoe polish, drying, and polishing the shoe uppers that have been changed in color; The drying conditions are: drying at 60-70°C for 5-10 minutes; The polishing process is: polish with a polishing machine cloth wheel at a speed of about 500.

10. A color-changing leather shoe, characterized in that: The shoe is made by changing the color of the upper of the lieutenant's uniform leather shoes as described in any one of claims 1 to 9.

Images