Novel environment-friendly acid blue-light red dye applied to furs and synthesis method of dye

The invention relates to the field of processing processes of animal furs and in particular relates to a novel environment-friendly acid blue-light red dye applied to furs and a synthesis method of the dye. The structural formula of the novel environment-friendly acid blue-light red dye is as shown in the description. The method comprises the following steps: (1) carrying out diazo-reaction; and (2) coupling. The dye can be widely used for dyeing various furs. The blue-light red dye has a series of advantages of high dyeing degree, high net adsorption rate, good compatibility and full color and luster; meanwhile, the dye is free of 24 aromatic hydrocarbons banned by European Union; the dye is environmentally friendly; by tests, the dye is free of sensitization; the safety is ensured.

Bicolored dyeing method for rabbit fur

The invention belongs to the field of an animal fur processing method, and particularly relates to a bicolored dyeing method for rabbit fur. The bicolored dyeing method for the rabbit fur comprises the steps as follows: (1), the rabbit fur which is not dyed is preprocessed; (2), dyeing: the preprocessed rabbit fur is dyed by solid fluorescent dye as fur tip dye, and then one bath dyeing is performed and top snow dye is added for dyeing; and (3), a discoloration liquid prepared by a chemical discoloration agent is adopted for performing fur tip discoloration processing on the dyed rabbit fur, wherein the solid fluorescent dye is anthraquinone type sulfonic acid sodium salt, the main component of the solid fluorescent dye is sulfonic acid sodium salt, and the content of sulfonic acid sodium salt accounts for 10%-30% of the total quantity of the solid fluorescent dye. According to the bicolored dyeing method for rabbit fur, the discoloration is thorough, the bicolored effect is better, the ...

Novel acidic color discharge dye for furs and synthetic method thereof

The invention relates to the field of fur dyes, and particularly relates to a novel acidic color discharge dye for furs and a synthetic method thereof. The novel acidic color discharge dye for the furs is synthesized by taking a benzene ring derivative and a naphthalene ring derivative as intermediates and has the structural general formula shown in the specification. The novel acidic color discharge dye for the furs, which is provided by the invention, has the advantages of no sensitization on human bodies, satiation in color and luster, excellent color fastness property and very good white discharge effect, can be compared with the whiteness of dispersive frost on furs and even exceed the whiteness of the dispersive frost on furs, and is lighter in dyeing raffinate, and thus achieving very little influence on the environment and belonging to an environmental-friendly product. Thus, the novel acidic color discharge dye provided by the invention belongs to a novel acidic color discharge ...

Fur tanning agent and preparation and application thereof

The invention relates to a fur tanning agent and a preparation method thereof. The tanning agent comprises the following components in parts by weight: 20 to 100 parts of oxazolidine compound, 5 to 50 parts of penetrating agent, 5 to 20 parts of moisturizing agent, 10 to 50 parts of softening agent and 20 to 200 parts of water. The tanning agent has the advantages that: during the storage process, the tanning agent is free from muddle and sedimentation at the temperature of minus 10 to 40 DEG C; the fur after being tanned by the tanning agent is plump, soft and elastic; the shrinkage temperature of the fur is more than or equal to 85 DEG C; and the fine mixed feather after being tanned can resist the oxidation and the reduction.

Double-face leather fatting agent and preparation method thereof

The invention provides a double-face leather fatting agent and a preparation method thereof, and belongs to the technical field of double-face leather processing. The double-face leather fatting agent comprises the following components in parts by weight: 70-85 parts of neutral oil and 15-30 parts of emulsifier, wherein the neutral oil comprises chlorinated alkane, epoxidized oil ester, higher aliphatic acid and higher aliphatic alcohol; the emulsifier comprises an ampholytic surfactant, a nonionic hydrophilic surfactant and a nonionic lipophilic surfactant. After the fatting agent provided by the invention is applied to the main oiling process of double-face leather, the absorptivity of the fatting agent can be up to 93-96%, the leather board is flexible, full, strong in forming sense, shallow in color and smooth and moist in hand feel, good fatting effect is provided, and the defect that the common fatting agents in the prior art are low in adsorptivity to cause waste and environment ...

Fluorescent dye and preparation method and application thereof

The invention provides a fluorescent dye, and relates to the field of fur dyeing. The fluorescent dye comprises the following raw material components: 10-90 parts of acid dye, 5-20 parts of polymethylnaphthalene sodium sulfonate, 5-50 parts of sodium xylene sulfonate, 1-10 parts of dispersing agent MF1-10 and 5-50 parts of nekal. The fluorescent dye provided by the invention has the greatest advantage that the absorbing rate is very high (residual liquid left after dyeing is colorless, the absorbing rate is approximate to 100 percent, the dye is saved greatly, and meanwhile the residual liquid reaches a discharge standard and meets the requirement on environmental protection). Moreover, fur dyed with the fluorescent dye has high light fastness and wet rubbing fastness.

Water treatment agent and preparation method and application thereof

The invention discloses a novel water treatment agent and a preparation method and application thereof. The water treatment agent consists of a water quality conditioning agent and a magnesium-iron composite decoloring flocculating agent; the water quality conditioning agent is prepared by the following formula which comprises the components in parts by weight: 50-90 parts of calcium oxide, 10-40parts of aluminium potassium sulfate and 10-30 parts of magnesium sulfate heptahydrate; and the magnesium-iron composite decoloring flocculating agent is prepared by the following formula which comprises the components in parts by weight: 5-30 parts of ferrous sulphate, 60-90 parts of magnesium sulfate heptahydrate and 0.1-5 parts of flocculation increasing agent. The water treatment agent can beused for waste water treatment of industrial waste water, especially in the leather industry, the fur industry and the textile printing and dyeing industry with serious pollution. When being used forsewage ...

Environment-friendly tanning agent for leather, preparation method and application thereof

The invention discloses a tanning agent for furs and a preparation method thereof. The tanning agent for the furs comprises the following components in parts by weight: 50-100 parts of tetrakis (hydroxymethyl) phosphonium sulfate (THPS), 5-60 parts of additive, 6-50 parts of complexing agent, 1-10 parts of EDTA and 10-100 parts of water. The preparation method of the tanning agent of the invention has simple and convenient operating process; each component of the tanning agent causes no environmental pollution, thus the tanning agent for the furs is environment-friendly; the tanning agent product has good performance, high storage stability, colorless appearance and no peculiar smell; the tanning agent is used for tanning the furs; the shrink temperature for a leather board reaches to 83 DEG C; and the tanning agent has the advantages that the penetrability is strong, the filling capability is good, fleeces tanned by the tanning agent is spotlessly white and natural and the like. The tanning ...

Method for bleaching coffee sable

The invention relates to the field of fur bleaching, and in particular relates to a method for bleaching coffee sable. The method for bleaching the coffee sable comprises the steps of A, tanning the coffee sable to obtain a primary tanned hide; B, coating the aciulum of the primary tanned hide with a solution formed by mixing a fur opening agent and a thicker to obtain a fur opened hide; C, bleaching the fur opened hide with a bleaching agent to obtain a product. According to the method for bleaching the coffee sable provided by the invention, the coffee sable is tanned first, and then only the aciulum is coated by the fur opening agent in a coating manner, so that only the aciulum is opened, and the effect of consistent color of the aciulum and villi can be achieved by later bleaching. After the thickener is added into the fur opening agent, the viscosity of the fur opening agent solution is improved, and the flowability of the fur opening agent solution is reduced, so that the fur opening ...

Novel small-bath-ratio fur dyeing method

The invention relates to the field of fur dyeing and in particular relates to a novel small-bath-ratio fur dyeing method. A device adopted in the novel small-bath ratio fur dyeing method is a drum; the novel small-bath-ratio fur dyeing method comprises the following steps: step one, feeding water and fur dyeing auxiliaries into the drum; second two, putting dry fur in the drum and rotating for 10-15 minutes; step three, adding a dye according to dyeing requirements and then continuously rotating until even dyeing is achieved; and step four, adding formic acid to the drum until the PH value of the solution is in the range of 3.2 to 3.8 and then continuously rotating for 30-60 minutes; if the dyeing requirements are met, directly taking out the fur and carrying out spin-drying; if the dyeing requirements are not met, repeating the step three and the step four, and then taking out the fur and carrying out spin-drying after the dyeing requirements are met. The novel small-bath-ratio fur dyeing ...

Fatting agent for normal-temperature fatting

The invention relates to the technical field of leather chemicals and in particular to a fatting agent for normal-temperature fatting. The fatting agent is prepared from the following components in parts by weight: 50-60 parts of oxidized sulfited oil, 10-15 parts of mineral oil, 10-15 parts of animal oil and 15-25 parts of a surfactant. The fatting agent provided by the invention is excellent in acid resistance, alkaline resistance and electrolyte resistance, and good in performance of bonding with leather fibers; leather fatted by the fatting agent is soft, full and good in wettability; moreover, the fatting agent can be used for fatting the leather at normal temperature.

Fur tanning agent and preparation and application thereof

Fur-with-frost dye and preparation method thereof

The invention provides a fur-with-frost dye and a preparation method thereof. The fur-with-frost dye is prepared from the following raw materials in parts by mass: 20-50 parts of acid dye, 10-20 parts of ammonium sulfate, 2-10 parts of fluorescent whitening agent, 2-5 parts of penetrant, 2-5 parts of sodium xylene sulfonate, 10-20 parts of white dextrin and 20-35 parts of anhydrous sodium sulfate; the preparation method of the fur-with-frost dye comprises the following steps: (A) weighing the raw materials and mixing for 1-3 hours to obtain a first powdery mixture; (B) pouring the first mixture into a pelletizer for pelleting to obtain the granular fur-with-frost dye. The dye-uptake of the prepared fur-with-frost dye is increased in the dyeing process, the content of the dye in the waste liquid is effectively reduced and the harm to the environment and the human body is reduced. The dye is prepared into the granular form, and therefore, the dust is greatly reduced and the harm to the using ...

Hepatitis b surface antigen and antibody detection method

The invention discloses a covalent conjugate of polypeptide and horseradish peroxidase (HRP), the covalent conjugate is reacted with a novel fluorescent substrate of the HRP to generate very strong fluorescent signals, the HRP-labeled polypeptide can be used for the diagnosis of hepatitis B surface antigen or antibody, and the conjugate is a product formed by the covalent conjugation of the polypeptide with less than 50 amino acids and the horseradish peroxidase (HRP). The HRP-labeled polypeptide with the covalent bond connection is easily identified and combined by the antibody, the existence of the hepatitis B surface antibody or antigen in a sample can be measured through various modes. The HRP-labeled polypeptide conjugate of the invention is reacted with the fluorescent substrate ADHP of the HRP, thereby being used for the fluorescence detection of the hepatitis B surface antigen and antibody.

White fox fur color processing method

The invention relates to the field of white fox fur color processing and in particular relates to a white fox fur color processing method. The white fox fur color processing method comprises the following steps: selecting a fur; performing chrome tanning on the selected white fox fur; dyeing the white fox fur after chrome tanning and then rotating in a drum; performing discharge to obtain the desired color; performing saw dust rotating treatment, thereby finishing processing. According to the method, the white fox fur is firstly subjected to chrome tanning so that the fur shrinks and the temperature of the fur is increased; the desired bottom color is obtained by virtue of dyeing, the hair is loosened by virtue of rotating in the drum, next, the desired color is obtained by virtue of discharge, and finally, the hair is loosened and brightened and the unfixed dye is removed by virtue of the saw dust rotating treatment; the obtained fox fur of each color is secure, even and consistent in ...

Special flocculation decolorizing agent for fur oxidation dyeing sewage and preparing method thereof

The invention relates to the field of animal fur treatment technologies, in particular to a special flocculation decolorizing agent for fur oxidation dyeing sewage and a preparing method thereof. The special flocculation decolorizing agent for fur oxidation dyeing sewage is prepared from the following raw materials in parts by weight: 10-20 parts of a flocculant, 10-40 parts of an inorganic oxidant, 10-40 parts of an inorganic base and 10-50 parts of an absorbent. The method is carried out in the way that the special flocculation decolorizing agent for fur oxidation dyeing sewage is prepared through the mixing of the raw materials in the parts. The flocculation decolorizing agent is mainly used as a special efficient flocculation decolorizing agent for the treatment of fur oxidation dyeing sewage, is simple in constitution, convenient to produce and use and low in cost, has a great flocculation decolorizing effect, can effectively remove oxidation dye intermediates from the sewage, and ...

Formaldehyde removal agent and preparation method thereof

The invention relates to the field of leather manufacturing, and in particular relates to a formaldehyde removal agent for removing residual formaldehyde of fur and a preparation method of the formaldehyde removal agent. Raw materials of the formaldehyde removal agent comprise the following components in parts by weight: 10-100 parts of main material, 10-40 parts of retanning filling agent, 1-5 parts of absorbent, 1-20 parts of surfactant, 1-20 parts of PH value regulator and 10-50 parts of reducing agent, wherein the main material is one or a mixture of more of amino compounds or ester compounds. The formaldehyde removal agent provided by the invention is prepared by blending the amino compounds or the ester compounds which are used as the main material and the reducing agent and some adding auxiliary agents for improving the formaldehyde removal performance which are used as an auxiliary material so as to ensure that the amino compounds or the ester compounds perform chemical reaction ...

Leather dye and preparing method thereof

The invention relates to the field of leather dying, in particular to leather dye and a preparing method of the leather dye. The leather dye comprises, by weight, 10-90 parts of dye and 2-20 parts of bipolymer of acrylamide and acrylic acid. The dye is acid dye containing a sulfonic group or direct dye containing a sulfonic group. According to the leather dye, the bipolymer of the acrylamide and the acrylic acid is added to serve as a dye-fixing agent, so that the firmness of the dye is increased; compared with common leather dye without the dye-fixing agent, the firmness level of the leather dye under the circumstance of airing or dry shining or wet shining is remarkably improved; in addition, when the color of the leather dye reaches the same degree, the use amount of the leather dye can be reduced at least by 15% compared with the common leather dye without the dye-fixing agent, and thus the leather dye further has the effect of increasing the dark degree.

Novel soft skin chrome retanning method

The invention relates to the field of leather tanning, in particular to a novel soft skin chrome retanning method. Used retanning equipment is drum; firstly, water, chrome powder, industrial salt, wetting agent and chrome retanning assistant are added in the drum; the temperature is controlled within 35-38 DEG C; then, the chrome powder, the industrial salt and the wetting agent are evenly mixed in the water; dry barks are added to continuously mix for 2-3 hours; then, the temperature is raised to 43-46 DEG C; the intermittent mixing is performed for 8-12 hours every 5-10 minutes per hour; and finally, the barks are discharged and dried. The novel soft skin chrome retanning method adopts the drum to retan the soft skin chrome, so that the procedures of PH value adjustment and hair washing are reduced, more water consumption is decreased, the energy consumption is reduced, the chemical materials are reduced, the processing time is shortened, and the processing period is shortened.

Novel fine mixed leather finished product sorting method

The invention relates to the technical field of leather sorting, in particular to a novel fine mixed leather finished product sorting method. The method comprises the steps that fine mixed leather finished products are classified, the fine mixed leather finished products of the same kind are put into a fulling mill, and then the fulling mill is started; an air inlet valve on the fulling mill is opened, steam is injected into the fulling mill, the air inlet valve is closed until the temperature inside the fulling mill is 60 DEG C to 95 DEG C, and the fulling mill continues to rotate for 20 minutes to 30 minutes; a door of an outer sealed room is opened, the temperature inside the fulling mill is reduced to 60 DEG C to 85 DEG C, a feeding switch on the fulling mill is turned on, brightening agents are evenly sprayed into the fulling mill, the brightening agents are sprayed within one to two minutes, and after the brightening agents are sprayed, the fulling mill continues to rotate for 20 ...

Fur machining method

The invention relates to the field of fur production machining industries, in particular to a fur machining method. According to the fur machining method, in the machining process of fur, the salt-free pickling and aldehyde-free chromium-free tanning technology is adopted. Neutral inorganic salt (sodium chloride and sodium sulfate) is not used in the processes of soaking, degreasing, softening, pickling and the like, and the machining processes are achieved by adding corresponding organic reagents (penetrating agents, degreasing agents, pickling additives and softening enzyme). Therefore, the problem that in the prior art, when fur is machined, a large amount of inorganic salt (especially neutral salt) needs to be used, and the environment is polluted is solved. In addition, in the whole fur machining process, due to the fact that the neutral salt is not used, the production cost is greatly reduced, the cost for waste water treating is reduced, the environment is protected, and the quality ...

Method for detecting properties of acid fur dye

The invention provides a method for detecting the properties of an acid fur dye. The method comprises the following steps: (A) respectively preparing a standard acid fur dye and a to-be-detected acid fur dye into a standard solution and a sample solution, wherein the concentrations of the standard solution and the sample solution are equal and are 0.013-0.04g/L; and (B) respectively adding the standard solution and the sample solution into a cuvette, measuring the colored light difference value Adj DE and strength difference STR-SUM% of the standard solution and the sample solution by virtue of an integrating sphere spectrophotometer after the equivalence, wherein the colored light control range of the acid fur dye is that Adj DE is less than or equal to 0.50, and the strength control range of the acid fur dye is that STR-SUM% is more than or equal to 98% and less than or equal to 100%. The method provided by the embodiment of the invention has the advantages of being rapid, timely, convenient ...

Method of preparing sheepskin clothing face garment leather with small liquor ratio

The invention relates to the treatment field of animal furs and particularly relates to a method of preparing sheepskin clothing face garment leather with a small liquor ratio. The method comprises the following steps: pre-treating soil-species sheepskin in a paddle-tumbler, wherein the pretreatment includes the steps of soaking in water, washing the skin, re-soaking in water, shearing, removing meat and degassing, and a weight ratio of the water to the raw material kin in each pretreatment step is 9-11; then, performing pickling, depickling, re-pickling, tanning, re-tanning, neutralizing and oiling in a rotary drum in sequence, wherein a weight ratio of the water to the raw material skin in each treatment step is 5-7; and performing the processes of drying, moisture regaining, staking, dry cleaning, fine pruning, scalding, dry grinding and clearing to obtain the sheepskin clothing face garment leather. According to the method disclosed by the invention, the soil-species sheepskin is prepared ...

Safety environmental-friendly water-emulsified drum degreasing agent, and preparation method and applications thereof

The invention belongs to the field of animal fur processing technology, and more specifically relates to a safety environmental-friendly water-emulsified drum degreasing agent, and a preparation method and applications thereof. The safety environmental-friendly water-emulsified drum degreasing agent is prepared from following raw materials, by weight, 10 to 50 parts of a solvent naphtha, 5 to 20 parts of an emulsifier, 1 to 10 parts of a stabilizing agent, and 20 to 100 parts of deionized water; wherein the solvent naphtha is one or a mixture of white spirit D60, tasteless turpentine, and dodecane; the emulsifier is one or a mixture of AEO9, AEO7, dodecyl amidopropyl betaine, and coconutt diethanol amide; and the stabilizing agent is 1,2-propanediol or hexadecanol, or a mixture of 1,2-propanediol and hexadecanol. The safety environmental-friendly water-emulsified drum degreasing agent is capable of removing grease of fine leather after oil tanning, is excellent in degreasing capability, ...

Fatting agent and preparation method thereof

The invention relates to the field of fur leather processing, and particularly relates to a fatting agent and a preparation method thereof. The raw material of the fatting agent comprises the following components in parts by weight: 10-200 parts of neats-foot oil, 40-200 parts of castor oil, 25-150 parts of phosphorus pentoxide, 4-38 parts of 20-30wt% inorganic alkali solution, 15-100 parts of organic alkali and 50-200 parts of water. Compared with the fatting agent in the prior art, the fatting agent provided by the invention has high water solubility, good emulsification effect and stable character, and can be stored for a long period of time. The leather has excellent oiliness in surface, soft skin and high cleaning rate after the fatting agent disclosed by the embodiment of the invention is added to the leather, and the whiteness of the skin surface is not deepened.

Oxidation dyeing method utilizing potassium permanganate as medium

The invention relates to the field of animal fur processing and particularly relates to an oxidation dyeing method utilizing potassium permanganate as a medium. The oxidation dyeing method comprises the following steps: preprocessing raw material fur, and carrying out wool opening by virtue of a first mixing water solution containing sodium carbonate, ammonia water and a degreasing agent; washing; soaking the washed raw material fur for 20-40 minutes by virtue of a water solution containing potassium permanganate and a penetrating agent, adding lactic acid, continuously soaking, and carrying out oxidation dyeing after the soaking; washing the dyed raw material fur for eliminating a flooding phenomenon, carrying out retanning, drying, adding oil, standing, dry washing, and dry shoveling, so as to obtain finished products. According to the oxidation dyeing method, the potassium permanganate is utilized for replacing toxic potassium dichromate to serve as a medium auxiliary during the oxidation ...

Method and device for recycling chromium-containing sludge

The invention provides a method and a device for recycling chromium-containing sludge, and belongs to the technical field of fur manufacturing. The method comprises the following steps: (1) collecting the chromium-containing sludge, and measuring the content of chromium sesquioxide contained in the chromium-containing sludge; (2) taking and diluting 65-70% of concentrated sulfuric acid according to the weight of the contained chromium sesquioxide, adding diluted concentrated sulfuric acid to the chromium-containing sludge, carrying out a full reaction at 90-95 DEG C, and then carrying out solid-liquid separation to obtain first supernate; (3) allowing the first supernate to stand, and cooling to a normal temperature for filter pressing so as to obtain second supernate; (4) using the second supernate in a tanning or retanning operation. According to the method, the second supernate is obtained without the operations of calcining, reduction and the like, and the operation of tanning is directly ...

Environment-friendly acid stripping yellow dye compound, as well as application and synthesizing method

The invention relates to the field of animal fur processing process, and particularly relates to an environment-friendly acid stripping yellow dye compound, as well as application and a synthesizing method. The dye is prepared by means of diazotization reaction and coupling reaction, and can be widely applied to dyeing of various furs. The acid stripping yellow dye does not contain 24 prohibited aromatic amine structures, does not have sensitization, has the advantages of rich color, excellent color fastness performance, excellent compatibility, high dye-uptake rate, high exhausting rate, light dyeing residue and small influence to environment, belongs to an environment-friendly product, and can be used as a stripping yellow dye to enrich the types designs and colors in the field of fur dyeing.

Method for preparing dye

The invention provides a method for preparing a dye. The method comprises the following steps: (A) firstly weighing raw materials (in parts by mass) of the dye, and mixing uniformly, so as to form a first mixture; (B) carrying out drying-degassing, tabletting molding and crushing-granulating on the first mixture, so as to form a granular finished product. According to the method for preparing the dye, provided by the embodiments of the invention, more convenience is provided for users; the fluidity of the dye finished product is improved by compaction and granulation methods; granules flow easier than powder, and caking can be prevented, so that the granules have higher flow rate and can be more uniformly filled into containers and be more uniformly packaged. In addition, the release of dust in the powder wastes the materials, can cause injury to workers, easily causes allergy and increases the amount of labor of after-treatment, however, the volume of dust of the granules is much lower ...

Processing method for yak shoe upper leather

The invention relates to the field of animal fur processing, in particular to a processing method for yak shoe upper leather. The processing method provided by the invention can process yak leather into upper leather which has a clear and fine grain surface, can reach a contraction temperature above 95 DEG C, is soft and full, achieves good extensibility, excellent teasing property, dyeing property and finishing property and has a few flaws on the yak leather grain surface. Therefore, the processing method provided by the invention can be exclusively used for processing yak leather into upper leather. The yak shoe upper leather produced by the method can improve the utilization rate of yak leather, thereby greatly improving the utilization value of yak leather.

HIV protease activity determination indicator, its preparation and uses

The invention provides a novel polypeptide fluorescent reagent, fluorescence intensity of which can be greatly improved by HIV proteases. The HIV proteases break internally quenched polypeptide and generate a stronger fluorescent product that emits high-intensity fluorescent signals in a near infrared region. The near infrared fluorescent intensity of the product is directly proportional to the activity of the HIV proteases. Due to that the fluorescent signals are in the near infrared region, the HIV protease indicator is very suitable for measuring the biological activity of the HIV proteases in various biological samples. The invention further provides a high-pass method for filtering HIV protease inhibitors, which has great application value for developing new AIDS-curing medicines.

Reusing and dyeing method for acid wastewater

The invention relates to the field of fur dyeing and particularly relates to a reusing and dyeing method for acid wastewater. The reusing and dyeing method is characterized in that the acid dyeing wastewater is separated into three grades according to the chromaticity and stored, and corresponding grades of acid dyeing wastewater can be selected according to the dyeing degree; the dyeing method comprises the following steps: (1) injecting the acid dyeing wastewater selected according to the dyeing requirement in dyeing equipment, adjusting the PH value, and then adding a fur dyeing assistant and a grease emulsifying agent; (2) adding dried fur, and rotating for 10-15 minutes; (3) adding dyestuff according to the dyeing requirement, and then continuously rotating till the dyeing is uniform; and (4) adding formic acid into a rotary drum till the PH value of the solution is 3.2-3.8, and continuously rotating for 30-60 minutes; and if the dyeing requirement is met, directly discharging the ...

Preparation method of fur dye

The invention provides a preparation method of fur dye. The preparation method comprises the following steps: (A) sequentially adding the raw materials of the fur dye including filler, a main ingredient, a modification additive and a bonding aid into a conical ball mill to form a first mixture, wherein the ball milling is performed for a period of time after each raw material is added; and (B) granulating the first mixture to obtain the fur dye. According to the preparation method of fur dye provided by the embodiment of the invention, the operation processes are greatly reduced, the blending time is shortened, the production efficiency is improved, and the energy consumption is reduced.

Method for imitating white fox fur through blue fox fur

The invention relates to the field of animal fur treatment, in particular to a method for imitating a white fox fur through a blue fox fur. The method comprises the following steps: treating guard hairs by adopting liquid containing Weijia iced tea agent B and water according to volume ratio of 0-1; soaking the guard hairs with the mixed solution of edible salts, a wetting agent and ferrous sulfate; bleaching through the mixed solution of hydrogen peroxide and other substances; performing deferrization, reducing whitening, retanning and fatiquoring and drying to obtain the white fox fur. According to the method for imitating the white fox fur through the blue fox fur, provided by the invention, firstly, the tips of the guard hairs of the blue fox fur are treated through the Weijia iced tea agent B, so that scale layers of the guard hairs of the blue fox fur are opened more thoroughly; secondly, the guard hairs are treated through a specific medium and bleached by mixing the hydrogen peroxide ...