阅读说明：本技术 一种带有上色固色功能的清洁剂 (Cleaning agent with coloring and color fixing functions ) 是由 张晓玲 于 2021-08-05 设计创作，主要内容包括：本发明涉及皮革处理技术领域,具体地说是一种带有上色固色功能的清洁剂。一种带有上色固色功能的清洁剂,其特征在于包括如下重量份的原料：55-65份的水、3-6份的表面活性剂、25-35份的水溶性有机溶剂、3-8份的丙烯酸树脂、3-8份金属络合染料水,各组分含量之和为100份；其制备方法包括如下步骤：常温下,依次分别称取水、表面活性剂、水溶性有机溶剂、丙烯酸树脂、金属络合染料水加入到搅拌器中,搅拌器保持转速40r/min,搅拌30min,至各材料混合均匀后过滤。同现有技术相比,清洁的同时可以对皮革进行上色、固色处理,简化了皮革涂饰工艺,提高了生产效率。(The invention relates to the technical field of leather treatment, in particular to a cleaning agent with coloring and color fixing functions. The cleaning agent with the coloring and color fixing functions is characterized by comprising the following raw materials in parts by weight: 55-65 parts of water, 3-6 parts of surfactant, 25-35 parts of water-soluble organic solvent, 3-8 parts of acrylic resin and 3-8 parts of metal complex dye water, wherein the sum of the contents of all the components is 100 parts; the preparation method comprises the following steps: at normal temperature, respectively weighing water, surfactant, water-soluble organic solvent, acrylic resin and metal complex dye water in sequence, adding into a stirrer, keeping the rotation speed of the stirrer at 40r/min, stirring for 30min, mixing the materials uniformly, and filtering. Compared with the prior art, the leather can be colored and fixed while being cleaned, so that the leather coating process is simplified, and the production efficiency is improved.)

1. The cleaning agent with the coloring and color fixing functions is characterized by comprising the following raw materials in parts by weight: 55-65 parts of water, 3-6 parts of surfactant, 25-35 parts of water-soluble organic solvent, 3-8 parts of acrylic resin and 3-8 parts of metal complex dye water, wherein the sum of the contents of all the components is 100 parts;

the preparation method comprises the following steps: at normal temperature, respectively weighing water, surfactant, water-soluble organic solvent, acrylic resin and metal complex dye water in sequence, adding into a stirrer, keeping the rotation speed of the stirrer at 40r/min, stirring for 30min, mixing the materials uniformly, and filtering.

2. The cleaning agent with coloring and fixing functions as claimed in claim 1, wherein: the acrylic resin is AR 624.

3. The cleaning agent with coloring and fixing functions as claimed in claim 1, wherein: the surfactant is one or more of peregal and OP-15.

4. The cleaning agent with coloring and fixing functions as claimed in claim 1, wherein: the water-soluble organic solvent is one or more of ethanol and ethylene glycol ethyl ether.

5. The cleaning agent with coloring and fixing functions as claimed in claim 1, wherein: the metal complex dye water comprises the following raw materials in parts by weight: 20-25 parts of metal complex dye powder, 50-60 parts of ethanol and 20-30 parts of water, wherein the sum of the contents of the components is 100 parts.

6. The application of the cleaning agent with coloring and color fixing functions as claimed in claim 1, characterized in that: the finishing process of applying the cleaning agent to the black cowhide vamp specifically comprises the following steps:

s1, cleaning: dipping the cleaning agent in sponge or dust-free cloth, ensuring that the cleaning agent is uniformly dispersed in the sponge or dust-free cloth, cleaning the vamp on the vamp in a circling manner, ensuring that the vamp is thoroughly cleaned, and airing or drying after cleaning;

s2, glazing: spraying a polishing material on the vamp by using a compressed air spray gun, spraying the shoe head part, repeating the gun returning twice, pulling the gun to spray the shoe body in a linear mode, and finally returning the gun to the heel part for one to two times;

s3, polishing: the rotating speed of the polishing machine is adjusted to 800-1200 rpm, the polishing material is attached to a cloth wheel driven by the polishing machine, the polishing material is attached to the cloth wheel, the rotating speed of the polishing machine is reduced to 700-1000 rpm, the shoe is attached to the cloth wheel, the toe cap and the heel are polished first, and then the whole shoe is polished in all directions.

7. The application of the cleaning agent with coloring and fixing functions as claimed in claim 6 is characterized in that: in the step S2, the aperture of the compressed air spray gun is 0.5mm, the opening angle of the atomizing sector is 30 degrees, the distance from the vamp is about 15cm, and the atomizing sector is ensured to be vertical to the vamp.

8. The application of the cleaning agent with coloring and fixing functions as claimed in claim 6 is characterized in that: in step S2, the polishing treatment is performed by using all-powder wax water and self-emulsifying wax oil, wherein the all-powder wax water comprises the following raw materials in parts by weight: 40-50 parts of deionized water, 15-21 parts of modified polyurethane resin emulsion, 22-30 parts of emulsion-like first modified rice bran wax, 8-11 parts of metal complex dye water, 3-5 parts of an auxiliary agent and 2-5 parts of an alcohol ether solvent; the sum of the contents of all the components is 100 parts; the self-emulsifying wax oil comprises the following raw materials in parts by weight: 30-40 parts of deionized water, 35-45 parts of second modified rice bran wax emulsion, 5-10 parts of alcohol ether solvent, 6-10 parts of modified polyurethane resin emulsion, 8-10 parts of metal complex dye water and 3-5 parts of auxiliary agent; the sum of the contents of all the components is 100 parts.

9. The application of the cleaning agent with coloring and fixing functions as claimed in claim 6 is characterized in that: in step S3, polishing is performed by using soft filling wax and polishing wax block, where the soft filling wax includes the following raw materials in parts by weight: 40-50 parts of oxidized paraffin, 20-30 parts of palm wax, 15-20 parts of kaolin, 3-5 parts of chlorinated paraffin and 15-20 parts of preformed metal complex dye wax agent, wherein the sum of the contents of all the components is 100 parts; the polishing wax block comprises the following raw materials in parts by weight: 40-50 parts of palm wax, 25-35 parts of first modified rice bran wax, 1-3 parts of chlorinated paraffin, 25-30 parts of preformed metal complex dye wax agent and 1 part of essence, wherein the sum of the contents of all the components is 100 parts; the prefabricated metal complex dye wax agent comprises the following raw materials in parts by weight: 35-38 parts of metal complex dye powder, 40-50 parts of stearic acid and 20-25 parts of palm wax; the sum of the contents of all the components is 100 parts.

10. The use of the cleaning agent with coloring and fixing functions according to claim 8 or 9, characterized in that: the preparation method of the first modified rice bran wax, the emulsion-shaped first modified rice bran wax and the emulsion-shaped second modified rice bran wax specifically comprises the following steps:

step A, adding concentrated sulfuric acid with the concentration of 75% into a first enamel reaction kettle, keeping the continuous heating state, adding rice bran wax into the first enamel reaction kettle, continuously heating the rice bran wax to 90-100 ℃ to melt the rice bran wax, slowly adding a hydrogen peroxide solution with the concentration of 35% under the stirring state, continuously stirring for 12-14 hours under the constant temperature condition of 90-100 ℃ to completely oxidize the rice bran wax, naturally cooling the rice bran wax, standing for 1 hour to separate the wax from water, and discharging the water at the lower layer;

step B, heating the enamel reaction kettle to 90-100 ℃, re-melting the oxidized rice bran wax on the upper layer into liquid, adding water under the stirring state, continuously stirring for 30-40 minutes, standing for 1-3 hours, separating the wax and the water, and discharging the water on the lower layer;

step C, repeating the step B for 3-5 times, wherein the upper layer is the high-acid-value synthetic wax, and the lower layer is water recycled;

step D, taking the high-acid-value synthetic wax and the methyl isopropyl ketone for mixing and dissolving, heating to a high-acid-value synthetic wax for completely dissolving, slowly cooling the mixed solution under continuous slow stirring to a constant temperature of 45-55 ℃, keeping the constant temperature for 30-40 minutes, and separating solid and liquid;

step E, carrying out vacuum distillation on the solid to obtain high-melting-point synthetic wax;

step F, carrying out vacuum distillation on the liquid to obtain synthetic wax with a low melting point, wherein the distilled liquid is methyl isopropyl ketone and is reserved for subsequent recycling;

step G, putting the high-melting-point synthetic wax and zinc oxide into a second enamel reaction kettle, heating to 150-160 ℃ to melt the high-melting-point synthetic wax, adding calcium oxide to react for 5-8 hours, and washing after the reaction is finished to obtain first modified rice bran wax;

step I, putting the low-melting-point synthetic wax and zinc oxide into a third enamel reaction kettle, heating to 150-160 ℃ to melt the low-melting-point synthetic wax, adding high-molecular polyethylene glycol, reacting for 5-8 hours, slowly cooling to normal temperature after the reaction is finished, and filtering to obtain a second modified rice bran wax emulsion;

and step J, mixing and heating the first modified rice bran wax, the second modified rice bran wax emulsion and the emulsifier to be melted at 110 ℃ of 100 ℃, slowly adding deionized water at 100 ℃ in a stirring state, stirring to be uniform milky liquid, homogenizing for 30-60 minutes by using a homogenizer, and filtering to obtain the emulsion-shaped first modified rice bran wax.

Technical Field

The invention relates to the technical field of leather treatment, in particular to a cleaning agent with coloring and color fixing functions.

Background

In the leather finishing process, the leather needs to be subjected to treatment processes such as cleaning and coloring. The existing cleaning agent cleans dirt on the surface of leather, also comprises floating color on the surface, even a part of color coated on the surface of the leather can be cleaned in the cleaning process, and the cleaning function conflicts with coloring and color fixing and cannot be combined in the same process.

Therefore, the cleaning agent with the coloring and color fixing functions is designed, so that the leather can be colored and fixed while being cleaned, the leather coating process is simplified, and the production efficiency is improved.

Disclosure of Invention

The invention provides the cleaning agent with the coloring and color fixing functions for overcoming the defects of the prior art, and the cleaning agent can be used for coloring and color fixing the leather while cleaning, so that the leather coating process is simplified, and the production efficiency is improved.

In order to realize the purpose, the cleaner with the coloring and color fixing functions is designed, and is characterized by comprising the following raw materials in parts by weight: 55-65 parts of water, 3-6 parts of surfactant, 25-35 parts of water-soluble organic solvent, 3-8 parts of acrylic resin and 3-8 parts of metal complex dye water, wherein the sum of the contents of all the components is 100 parts;

the preparation method comprises the following steps: at normal temperature, respectively weighing water, surfactant, water-soluble organic solvent, acrylic resin and metal complex dye water in sequence, adding into a stirrer, keeping the rotation speed of the stirrer at 40r/min, stirring for 30min, mixing the materials uniformly, and filtering.

The acrylic resin is AR 624.

The surfactant is one or more of peregal and OP-15.

The water-soluble organic solvent is one or more of ethanol and ethylene glycol ethyl ether.

The metal complex dye water comprises the following raw materials in parts by weight: 20-25 parts of metal complex dye powder, 50-60 parts of ethanol and 20-30 parts of water, wherein the sum of the contents of the components is 100 parts.

The finishing process of applying the cleaning agent to the black cowhide vamp specifically comprises the following steps:

s1, cleaning: dipping the cleaning agent in sponge or dust-free cloth, ensuring that the cleaning agent is uniformly dispersed in the sponge or dust-free cloth, cleaning the vamp on the vamp in a circling manner, ensuring that the vamp is thoroughly cleaned, and airing or drying after cleaning;

s2, glazing: spraying a polishing material on the vamp by using a compressed air spray gun, spraying the shoe head part, repeating the gun returning twice, pulling the gun to spray the shoe body in a linear mode, and finally returning the gun to the heel part for one to two times;

s3, polishing: the rotating speed of the polishing machine is adjusted to 800-1200 rpm, the polishing material is attached to a cloth wheel driven by the polishing machine, the polishing material is attached to the cloth wheel, the rotating speed of the polishing machine is reduced to 700-1000 rpm, the shoe is attached to the cloth wheel, the toe cap and the heel are polished first, and then the whole shoe is polished in all directions.

In the step S2, the aperture of the compressed air spray gun is 0.5mm, the opening angle of the atomizing sector is 30 degrees, the distance from the vamp is about 15cm, and the atomizing sector is ensured to be vertical to the vamp.

In step S2, the polishing treatment is performed by using all-powder wax water and self-emulsifying wax oil, wherein the all-powder wax water comprises the following raw materials in parts by weight: 40-50 parts of deionized water, 15-21 parts of modified polyurethane resin emulsion, 22-30 parts of emulsion-like first modified rice bran wax, 8-11 parts of metal complex dye water, 3-5 parts of an auxiliary agent and 2-5 parts of an alcohol ether solvent; the sum of the contents of all the components is 100 parts; the self-emulsifying wax oil comprises the following raw materials in parts by weight: 30-40 parts of deionized water, 35-45 parts of second modified rice bran wax emulsion, 5-10 parts of alcohol ether solvent, 6-10 parts of modified polyurethane resin emulsion, 8-10 parts of metal complex dye water and 3-5 parts of auxiliary agent; the sum of the contents of all the components is 100 parts.

In step S3, polishing is performed by using soft filling wax and polishing wax block, where the soft filling wax includes the following raw materials in parts by weight: 40-50 parts of oxidized paraffin, 20-30 parts of palm wax, 15-20 parts of kaolin, 3-5 parts of chlorinated paraffin and 15-20 parts of preformed metal complex dye wax agent, wherein the sum of the contents of all the components is 100 parts; the polishing wax block comprises the following raw materials in parts by weight: 40-50 parts of palm wax, 25-35 parts of first modified rice bran wax, 1-3 parts of chlorinated paraffin, 25-30 parts of preformed metal complex dye wax agent and 1 part of essence, wherein the sum of the contents of all the components is 100 parts; the prefabricated metal complex dye wax agent comprises the following raw materials in parts by weight: 35-38 parts of metal complex dye powder, 40-50 parts of stearic acid and 20-25 parts of palm wax; the sum of the contents of all the components is 100 parts.

The preparation method of the first modified rice bran wax, the emulsion-shaped first modified rice bran wax and the emulsion-shaped second modified rice bran wax specifically comprises the following steps:

step A, adding concentrated sulfuric acid with the concentration of 75% into a first enamel reaction kettle, keeping the continuous heating state, adding rice bran wax into the first enamel reaction kettle, continuously heating the rice bran wax to 90-100 ℃ to melt the rice bran wax, slowly adding a hydrogen peroxide solution with the concentration of 35% under the stirring state, continuously stirring for 12-14 hours under the constant temperature condition of 90-100 ℃ to completely oxidize the rice bran wax, naturally cooling the rice bran wax, standing for 1 hour to separate the wax from water, and discharging the water at the lower layer;

step B, heating the enamel reaction kettle to 90-100 ℃, re-melting the oxidized rice bran wax on the upper layer into liquid, adding water under the stirring state, continuously stirring for 30-40 minutes, standing for 1-3 hours, separating the wax and the water, and discharging the water on the lower layer;

step C, repeating the step B for 3-5 times, wherein the upper layer is the high-acid-value synthetic wax, and the lower layer is water recycled;

step D, taking the high-acid-value synthetic wax and the methyl isopropyl ketone for mixing and dissolving, heating to a high-acid-value synthetic wax for completely dissolving, slowly cooling the mixed solution under continuous slow stirring to a constant temperature of 45-55 ℃, keeping the constant temperature for 30-40 minutes, and separating solid and liquid;

step E, carrying out vacuum distillation on the solid to obtain high-melting-point synthetic wax;

step F, carrying out vacuum distillation on the liquid to obtain synthetic wax with a low melting point, wherein the distilled liquid is methyl isopropyl ketone and is reserved for subsequent recycling;

step G, putting the high-melting-point synthetic wax and zinc oxide into a second enamel reaction kettle, heating to 150-160 ℃ to melt the high-melting-point synthetic wax, adding calcium oxide to react for 5-8 hours, and washing after the reaction is finished to obtain first modified rice bran wax;

step I, putting the low-melting-point synthetic wax and zinc oxide into a third enamel reaction kettle, heating to 150-160 ℃ to melt the low-melting-point synthetic wax, adding high-molecular polyethylene glycol, reacting for 5-8 hours, slowly cooling to normal temperature after the reaction is finished, and filtering to obtain a second modified rice bran wax emulsion;

and step J, mixing and heating the first modified rice bran wax, the second modified rice bran wax emulsion and the emulsifier to be melted at 110 ℃ of 100 ℃, slowly adding deionized water at 100 ℃ in a stirring state, stirring to be uniform milky liquid, homogenizing for 30-60 minutes by using a homogenizer, and filtering to obtain the emulsion-shaped first modified rice bran wax.

Compared with the prior art, the leather color fixing agent can be used for coloring and fixing the leather while cleaning, so that the leather coating process is simplified, and the production efficiency is improved.

Detailed Description

The embodiment is a cleaning agent with coloring and color fixing functions and application thereof.

The cleaning agent comprises the following raw materials in parts by weight: 60 parts of water, 3 parts of peregal, OP-152 parts, 15 parts of ethylene glycol ethyl ether, 10 parts of ethanol, 5 parts of AR624 acrylic resin and 5 parts of metal complex dye water.

The preparation method of the cleaning agent comprises the following steps: at normal temperature, respectively weighing water, surfactant, water-soluble organic solvent, acrylic resin and metal complex dye water in sequence, adding into a stirrer, keeping the rotation speed of the stirrer at 40r/min, stirring for 30min, mixing the materials uniformly, and filtering.

In the cleaning agent, water is a main solvent, and the surfactant promotes the penetration of leather fibers, reduces the surface tension of water and is beneficial to the penetration and the adhesion of aqueous materials. The water-soluble organic solvent is a water-based solvent, promotes the permeation of leather fibers, accelerates the swelling of the leather fibers and is beneficial to the permeation of subsequent materials into the leather fibers. The metal complex dye is complexed with metal ions, so that the metal complex dye belongs to a class with extremely bright colors in various dyes. The leather fiber can be dyed by the metal complex dye through penetration, but the dyeing is not easy to be fixed, color migration can be generated along with the influence of optical fibers, humidity, temperature and the like, so that the color of the leather is rapidly aged. The acrylic resin has small molecules, and can permeate into leather along with the cleaning agent and the metal complex dye water to reach a certain depth. And the acrylic resin and the metal complex dye water are in a mutual soluble state, and the acrylic resin and the metal complex dye water can be compatible and wrap metal complex dye molecules after being dried, so that the metal complex dye molecules can be tightly combined with leather fibers, and the acrylic resin and the leather fibers attached by the acrylic resin are colored and developed. When the acrylic resin is dried, the acrylic resin can wrap metal complex dye molecules, so that the metal complex dye molecules are fixed on the surface of leather fibers, and the leather is prevented from fading due to the fact that the metal complex dye molecules are separated from the leather. In addition, the acrylic resin has better brightness, so that the color of the metal complex dye molecule can be more bright and bright due to the brightness of the acrylic resin after the acrylic resin is dried.

The metal complex dye water comprises the following raw materials in parts by weight: 20 parts of metal complex dye powder, 50 parts of ethanol and 30 parts of water. The preparation method of the metal complex dye water comprises the following steps: at normal temperature, metal complex dye powder, ethanol and water are respectively weighed in sequence and added into a stirrer for uniform stirring. The metal complex dye powder is used for reflecting color, dyeing leather surface and increasing color vividness, the ethanol is used as a main solvent and is used for dissolving the metal complex dye, and the water can enable the mixture of the metal complex dye powder and the ethanol to present better water solubility. The metal complex dye powder has poor water solubility, and the embodiment selects ethanol to complete the oil-to-water operation of the metal complex dye, so that the water solubility of the metal complex dye is improved.

The cleaning agent of the embodiment can be applied to a finishing process of black cowhide, and the process specifically comprises the following steps:

s1, cleaning: the cleaning agent is dipped in the sponge or the dust-free cloth, the cleaning agent is uniformly dispersed in the sponge or the dust-free cloth, the vamp is cleaned in a circling mode on the vamp, the vamp is thoroughly cleaned, and the vamp is dried or dried after the cleaning is finished. When cleaning, the phenomena of uneven color and colored patterns on the vamp need to be prevented;

s2, glazing: respectively spraying and decorating full-powder wax water and self-emulsifying wax oil on the vamp by using a compressed air spray gun with the caliber of 0.5mm, spraying the head part of the shoe firstly, repeating the gun returning twice, then pulling the gun to spray and decorate the shoe body in a linear mode, and finally returning the gun to the heel part for one to two times;

s3, polishing: adjusting the rotation speed of the polishing machine to 800-1000 rpm, attaching soft filling wax to a cloth wheel driven by the polishing machine to enable the cloth wheel to be adhered with polishing materials, reducing the rotation speed of the polishing machine to 700-900 rpm, attaching the shoes to the cloth wheel, polishing the toe caps and the heels of the shoes, and polishing the whole shoes in all directions; and adjusting the rotation speed of the polishing machine to 1000-1200 rpm, attaching soft filling wax to a cloth wheel driven by the polishing machine, adhering polishing materials to the cloth wheel, reducing the rotation speed of the polishing machine to 800-1000 rpm, attaching the shoe to the cloth wheel, polishing the toe cap and the heel of the shoe, and polishing the whole shoe in an all-dimensional manner.

The cleaning agent in the step S1 can color the black cowhide while cleaning, so as to prevent the color of the black cowhide from being damaged by the cleaning agent. And further opens the fiber channel for subsequent operations and treatments, imparting hydrophilicity to the black kraft fiber.

The full-powder wax water in the step S2 comprises the following raw materials in parts by weight: 43 parts of deionized water, 15 parts of modified polyurethane resin, 25 parts of modified rice bran wax emulsion, 10 parts of metal complex dye water, 4 parts of alcohol ether solvent and 3-5 parts of auxiliary agent, wherein the auxiliary agent comprises 1 part of flatting agent, 0.5 part of hand feeling agent, 0.5 part of mildew preventive and 1 part of essence. The preparation method of the all-powder wax water specifically comprises the following steps of keeping a stirrer in a stirring state of 200-400r/min, sequentially adding the raw materials into the stirrer, stirring until the materials are uniformly mixed, and filtering.

The self-emulsifying wax oil in the step S2 comprises the following raw materials in parts by weight: 35 parts of deionized water, 37 parts of second modified rice bran wax emulsion, 8 parts of alcohol ether solvent, 6 parts of modified polyurethane resin emulsion, 10 parts of metal complex dye water and 4 parts of auxiliary agent, wherein the auxiliary agent respectively comprises 1 part of flatting agent, 1 part of hand feeling agent, 1 part of mildew preventive and 1 part of essence. The preparation method of the self-emulsifying wax oil specifically comprises the following steps of keeping a stirrer in a stirring state of 200-400r/min, sequentially adding the raw materials into the stirrer, stirring until the materials are uniformly mixed, and filtering.

And S3, polishing by using soft filling wax and polishing wax blocks respectively, wherein the soft filling wax comprises the following raw materials in parts by weight: 40 parts of oxidized paraffin, 25 parts of palm wax, 15 parts of kaolin, 3 parts of chlorinated paraffin and 17 parts of a preformed metal complex dye wax agent. The preparation method of the soft filling wax comprises the following steps: all raw materials are first heated to melt to a fluid state and then mixed together with continuous stirring. And then slowly cooling to 73 ℃ under stirring until the mixed liquid is gradually thickened but is not coagulated. Keeping the mold in a horizontal state again, injecting the cooled mixed liquid into the mold at a constant temperature of 70 ℃, finally standing the mold and completely cooling to room temperature, and demolding after the wax block is completely hardened.

The polishing wax block comprises the following raw materials in parts by weight: 48 parts of palm wax, 25 parts of second modified rice bran wax, 1 part of chlorinated paraffin, 25 parts of a preformed metal complex dye wax agent and 1 part of essence. The preparation method of the polishing wax block comprises the following steps: all raw materials are first heated to melt to a fluid state and then mixed together with continuous stirring. And then slowly cooling to 90 ℃ under stirring until the mixed liquid is gradually thickened but is not coagulated. Keeping the mold in a horizontal state again, injecting the cooled mixed liquid into the mold at a constant temperature of 85 ℃, finally standing the mold and completely cooling to room temperature, and demolding after the wax block is completely hardened.

The preformed metal complex dye wax agent in the soft filling wax and the polishing wax block comprises the following raw materials in parts by weight: 35 parts of metal complex dye powder, 40 parts of stearic acid and 25 parts of palm wax. The preparation method of the preformed metal complex dye wax agent comprises the following steps: firstly, dissolving metal complex dye powder in an acetone solvent with the mass of 1 time, and uniformly stirring until the metal complex dye powder is completely dissolved and no particles exist; secondly, adding stearic acid and palm wax, fully and slowly stirring, and heating until the wax is completely dissolved; thirdly, continuously heating until the liquid is boiled and evaporated; fourthly, slowly cooling to 50 ℃ after the steam is completely evaporated; and fifthly, pouring the mixture into a mold, and cooling to normal temperature to finish the preparation. In the third step, steam boiled out can be collected by a recovery cooling device, and the steam is cooled into liquid for storage and can be recycled.

In the prefabricated metal complex dye wax agent, acetone and stearic acid are used as intermediates, so that metal complex dye powder can be dispersed in palm wax, and the leather surface is colored while polishing is guaranteed. The prefabricated metal complex dye wax agent is prepared in advance and is convenient to take and use due to the long period of the manufacturing process and the complex process; and in the subsequent specific use process, the preformed metal complex dye wax agent is repeatedly heated and melted, so that the mutual fusion of the metal complex dye powder and the palm wax is facilitated.

The alcohol ether solvent can be one or more of ethanol, butanol, ethylene glycol ethyl ether and ethylene glycol butyl ether. The modified polyurethane resin emulsion is UW-10. The modified acrylic resin emulsion is AR-332.

The preparation method of the emulsion-shaped first modified rice bran wax in the full-powder wax water, the second modified rice bran wax emulsion in the self-emulsifying wax oil and the first modified rice bran wax in the polishing wax block specifically comprises the following steps:

step A, adding 500kg of natural rice bran wax into a first enamel reaction kettle filled with 2200ml of concentrated sulfuric acid with concentration of 75% in a heating state, continuously heating to 90 ℃ to melt the rice bran wax, slowly adding 5000ml of hydrogen peroxide solution with concentration of 35% in a stirring state, continuously stirring for 12 hours at a constant temperature of 90 ℃ to completely oxidize the rice bran wax, changing the color of the rice bran wax into light beige, naturally cooling, standing for 1 hour to separate the wax from water, and discharging the lower-layer water;

step B, heating the enamel reaction kettle to 90 ℃, so that the oxidized rice bran wax on the upper layer is re-melted into liquid, adding water under the stirring state, continuously stirring for 30 minutes, standing for 1 hour, so that the wax and the water are separated, and the water on the lower layer is discharged;

step C, repeating the step B for 3-5 times, wherein the upper layer is the high-acid-value synthetic wax, and the lower layer is water recycled;

step D, taking the high-acid-value synthetic wax and the methyl isopropyl ketone for mixing, heating to a high-acid-value synthetic wax for complete dissolution, slowly cooling the mixed solution under continuous slow stirring to a constant temperature of 45 ℃, keeping the temperature for 30 minutes, and separating solid and liquid, wherein the mass ratio of the high-acid-value synthetic wax to the methyl isopropyl ketone is 1: 5;

step E, carrying out vacuum distillation on the solid to obtain high-melting-point synthetic wax;

step F, carrying out vacuum distillation on the liquid to obtain synthetic wax with a low melting point, wherein the distilled liquid is methyl isopropyl ketone and is reserved for subsequent recycling;

step G, putting 200kg of high-melting-point synthetic wax and 2kg of zinc oxide into a second enamel reaction kettle, heating to 150 ℃ to melt the high-melting-point synthetic wax, adding 5kg of calcium oxide, reacting for 5-8 hours, and washing with water after the reaction is finished to obtain first modified rice bran wax;

step I, putting 200kg of low-melting-point synthetic wax and 2kg of zinc oxide into a third enamel reaction kettle, heating to 150 ℃ to melt the low-melting-point synthetic wax, adding 6kg of high-molecular polyethylene glycol with the molecular weight of 400, reacting for 5-8 hours, slowly cooling to normal temperature after the reaction is finished, and filtering to obtain a second modified rice bran wax emulsion;

and step J, mixing and heating 96 parts of first modified rice bran wax, 3 parts of second modified rice bran wax emulsion and 1 part of emulsifier OP-15 to melt at 100 ℃, slowly adding 500 parts of deionized water at 100 ℃ in a stirring state, stirring to obtain uniform milky liquid, homogenizing for 30-60 minutes by using a homogenizer, and filtering to obtain the emulsion-shaped first modified rice bran wax.

In the step D, the high-melting point synthetic wax is precipitated in a solid state at the temperature of 45 ℃, and the low-melting point synthetic wax is continuously present in a solution state. After the wax is distinguished by melting points, high-melting point synthetic wax and low-melting point synthetic wax with different brightness and properties are obtained.

The high-melting-point synthetic wax has high brightness, and the brightness can be enhanced again through subsequent synthetic treatment on the basis to prepare the high-melting-point, high-hardness and high-brightness synthetic wax without causing uncontrollable or inconspicuous brightness improvement of a final product due to interference of the low-melting-point wax.

The self-emulsifying synthetic wax prepared by subsequent treatment of the low-melting-point synthetic wax has stable self-emulsifying performance and can not cause incomplete emulsification due to the existence of the high-melting-point wax with limited self-emulsifying performance.

And G, performing saponification reaction on the high-melting-point synthetic wax and calcium oxide under the catalytic action of zinc oxide to obtain the first modified rice bran wax with high hardness, good polishing performance and high gloss.

In the step I, the low-melting-point synthetic wax and the high-molecular polyethylene glycol are subjected to dehydration esterification reaction under the catalytic action of zinc oxide to obtain a second modified rice bran wax emulsion with self-emulsifying property, and the second modified rice bran wax emulsion is soft and smooth in luster.

The cleaning agent disclosed by the invention can be used for coloring and fixing colors of leather while cleaning, so that the leather coating process is simplified, and the production efficiency is improved.