CN112709084A

CN112709084A - Coffee mink printing, bleaching and dyeing process and application thereof

Info

Publication number: CN112709084A
Application number: CN202011587763.2A
Authority: CN
Inventors: 吴涛; 郑超斌; 郑红超
Original assignee: Beijing Fanbo Cleaning Technology Research Institute Co ltd
Current assignee: Beijing Fanbo Cleaning Technology Research Institute Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-04-27
Anticipated expiration: 2040-12-29
Also published as: CN112709084B

Abstract

The invention provides a coffee mink printing, bleaching and dyeing process and application thereof, wherein the coffee mink printing, bleaching and dyeing process comprises the following steps: (1) a medium; (2) printing and bleaching; (3) deferrization; (4) reduction; (5) and (6) dyeing. The coffee mink printing, bleaching and dyeing process provided by the invention is easy to operate, stable in process, capable of printing and dyeing bright colors, capable of replacing the use of minks and remarkably reduced in cost.

Description

Coffee mink printing, bleaching and dyeing process and application thereof

Technical Field

The invention belongs to the field of animal fur treatment, particularly relates to a coffee mink printing, bleaching and dyeing process and application thereof, and particularly relates to an easy-to-operate coffee mink printing, bleaching and dyeing process and application thereof.

Background

At present, the fashion of fur products is stronger and stronger, and the fashion colors of the fur products are more and more. With the gradual expansion of fur market, the continuous development and perfection of fur chemical industry, the product grade is gradually increased, the variety of patterns is diversified, and the garment industry which is mature and developed day by day leads the trend of fashion life, thereby providing infinite business opportunities for the fur processing industry, and simultaneously providing higher requirements for the fur dyeing and finishing processing, and the fur processing industry occupies more and more important positions in the multicoloured garment industry by virtue of the technical progress of the fur chemical industry. The characteristic of beautifying the fur puts higher requirements on the fur color changing technology.

CN105970693A discloses a dyeing process for foxes, raccoon dogs and mink skins for making fur, which comprises the following steps: firstly, weighing; secondly, softening the fabric; thirdly, retanning; fourthly, rinsing; fifthly, dyeing; sixthly, spin-drying; seventhly, drying; eighthly, polishing, namely putting the skins into a closed wood rotary drum, adding sawdust, brightener and fluffing agent, rotating for 1-2 hours, discharging the skins, and rotating a silk cage; and step nine, finishing and warehousing finished products. The dyeing process of the fox, racoon dog and mink skins for manufacturing the fur is energy-saving and environment-friendly, and reduces the manufacturing cost. But it does not meet the dyeing requirements for multiple colors in ferret dyeing.

CN102864660B discloses a dual-purpose tanning dyeing process for mink fur and leather, which sequentially comprises the following steps: (1) pretreating raw skin; (2) cleaning; (3) soaking in water; (4) soaking in water again; (5) degreasing; (6) pickling; (7) performing aldehyde aluminum tanning (8) post-treatment; (9) retanning with chromium; (10) and (6) dyeing. The invention introduces aldehyde aluminum tanning to replace chrome tanning in the prior art in the first step of tanning, and the obtained mink skin has no color flower and uniform dyeing, thereby greatly improving the quality. In addition, each step adopts proper additives and reasonable addition amount, and all the processes are combined, so that the effect of the tanning dyeing is further improved. But it still has the problem of failing to meet the dyeing requirements for multiple colors in the dyeing of ferrets.

The cost of normal mink skin dyeing is high due to the use of the white mink, while the coffee mink is cheap but cannot dye. Therefore, how to provide a low-cost bright mink dyeing process becomes a problem to be solved urgently.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a coffee mink printing, bleaching and dyeing process and application thereof, and particularly provides an easy-to-operate coffee mink printing, bleaching and dyeing process and application thereof. The coffee mink printing, bleaching and dyeing process provided by the invention is easy to operate, stable in process, capable of printing and dyeing bright colors, capable of replacing the use of minks and remarkably reduced in cost.

In order to achieve the purpose, the invention adopts the following technical scheme:

on one hand, the invention provides a coffee mink printing, bleaching and dyeing process, which comprises the following steps:

(1) soaking the formaldehyde tanned coffee mink fur in a mixed solution of a wetting agent, a pH regulator, sodium hydrosulfite and ferrous sulfate for mediating, then peeling and drying to obtain mediated fur;

(2) printing a mixed solution of hydrogen peroxide, a bleaching agent and a hair protecting agent on the fur quilt of the fur after the medium obtained in the step (1), and then drying to obtain the fur after printing and bleaching;

(3) soaking the printed and bleached fur obtained in the step (2) in a mixed solution of salt, a fur protecting agent and oxalic acid for deferrization, then peeling and drying to obtain the deferrized fur;

(4) soaking the ironed fur obtained in the step (3) in a mixed solution of salt and a bleaching agent for reduction, then peeling and drying to obtain the reduced fur;

(5) and (4) soaking the reduced fur obtained in the step (4) in a fur leveling agent and dye mixed solution for dyeing, adding formic acid for continuous soaking, and then, peeling and drying to obtain the dyed fur.

According to the dyeing process, the fur is printed and bleached, the dark color of the coffee mink fur is removed, so that the coffee mink fur can be printed and dyed with bright color, the use of the mink can be reduced on the premise of meeting the requirements of people, the cost is obviously reduced, and meanwhile, the dyeing process is easy to operate and stable in process; meanwhile, the fur is attached to the fur by ferrous sulfate treatment and then bleached by hydrogen peroxide, and the bleaching effect of the hydrogen peroxide is enhanced by the reaction of the ferrous sulfate and the hydrogen peroxide.

Preferably, the pH regulator in step (1) includes any one or a combination of at least two of ammonium chloride, potassium hydrogen tartrate and sodium formate, such as a combination of ammonium chloride and potassium hydrogen tartrate, a combination of ammonium chloride and sodium formate or a combination of sodium formate and potassium hydrogen tartrate, but is not limited to the above-listed combinations, and other combinations not listed in the above-mentioned combination range are also applicable.

Preferably, the concentration of the pH regulator in the step (1) is 0.5-3.5 g/L.

Preferably, the concentration of the wetting agent in the step (1) is 0.15-0.25 mL/L.

Preferably, the wetting agent in the step (1) comprises any one of a Weiss wetting agent Q-39, an Elite wetting agent HAC or an Elite wetting agent JFC, and the Weiss wetting agent Q-39 is preferred.

Preferably, the concentration of the sodium hydrosulfite in the step (1) is 0.4-0.6 g/L.

Preferably, the concentration of the ferrous sulfate in the step (1) is 13-17 g/L.

Preferably, the pH of the mixed solution of the step (1) is 4.3 to 4.7.

Preferably, the temperature of the medium in the step (1) is 30-34 ℃ and the time is 10-14 h.

Wherein the concentration of the pH regulator can be 0.5g/L, 1g/L, 1.5g/L, 2g/L, 2.5g/L, 3g/L or 3.5g/L, etc., the concentration of the wetting agent can be 0.15mL/L, 0.16mL/L, 0.17mL/L, 0.18mL/L, 0.19mL/L, 0.2mL/L, 0.21mL/L, 0.22mL/L, 0.23mL/L, 0.24mL/L or 0.25mL/L, etc., the concentration of the sodium hydrosulfite can be 0.4g/L, 0.45g/L, 0.5g/L, 0.55g/L or 0.6g/L, etc., the concentration of the ferrous sulfate can be 13g/L, 14g/L, 15g/L, 16g/L or 17g/L, etc., the pH can be 4.3, 4.4, 4.5, 4.6 g/L, etc., the temperature can be 7.5, etc., the temperature can be 4.6, etc, The time may be 10 hours, 11 hours, 12 hours, 13 hours or 14 hours, such as 31 ℃, 32 ℃, 33 ℃ or 34 ℃, but is not limited to the above-mentioned values, and other values not listed in the above-mentioned range of values are also applicable.

The wetting agent, the pH regulator, the sodium hydrosulfite and the ferrous sulfate are mutually synergistic, the wetting agent enables the fur to be fully combined with the water phase, and the pH regulator and the sodium hydrosulfite enable the ferrous sulfate to be fully combined with the fur, so that the next printing and bleaching effect is better.

Preferably, the concentration of the hydrogen peroxide in the step (2) is 180-220 mL/L.

Preferably, the concentration of the bleaching agent in the step (2) is 13-17 g/L.

Preferably, the bleaching agent in the step (2) comprises any one of a Velcro bleaching agent R-29, a Velcro bleaching agent H-15 or a Velcro bleaching agent F-35, and the Velcro bleaching agent R-29 is preferred.

Preferably, the concentration of the hair care agent in the step (2) is 8-12 mL/L.

Preferably, the temperature of the baking in the step (2) is 45-55 ℃ and the time is 8-12 min.

Wherein the concentration of hydrogen peroxide can be 180mL/L, 185mL/L, 190mL/L, 195mL/L, 200mL/L, 205mL/L, 210mL/L, 215mL/L or 220mL/L, etc., the concentration of the bleaching agent can be 13g/L, 14g/L, 15g/L, 16g/L or 17g/L, etc., the concentration of the hair-protecting agent can be 8mL/L, 9mL/L, 10mL/L, 11mL/L or 12mL/L, etc., the temperature can be 45 ℃, 46 ℃, 47 ℃, 48 ℃, 49 ℃, 50 ℃, 51 ℃, 52 ℃, 53 ℃, 54 ℃ or 55 ℃, etc., the time can be 8min, 9min, 10min, 11min or 12min, etc., but not limited to, the above-listed numerical values, and other numerical values not listed in the above numerical range are also applicable.

The hydrogen peroxide, the bleaching agent and the hair protecting agent are mutually cooperated, and the effect of slowly releasing hydrogen peroxide by the bleaching agent is utilized, so that the hair is not damaged on the basis of ensuring the bleaching effect.

Preferably, the concentration of the salt in the step (3) is 35-45 g/L.

Preferably, the concentration of the hair care agent in the step (3) is 2.5-3.5 mL/L.

Preferably, the hair care agent comprises any one of a Weijia hair care agent M-60, a Weijia hair care agent M-80 or a Weijia hair care agent MB, and the Weijia hair care agent M-60 is preferred.

Preferably, the concentration of the oxalic acid in the step (3) is 3.5-4.5 g/L.

Preferably, the temperature of the iron removal in the step (3) is 33-37 ℃ and the time is 3.5-4.5 h.

Wherein the salt concentration can be 35g/L, 36g/L, 37g/L, 38g/L, 39g/L, 40g/L, 41g/L, 42g/L, 43g/L, 44g/L or 45g/L, etc., the hair-protecting agent concentration can be 2.5mL/L, 2.6mL/L, 2.7mL/L, 2.8mL/L, 2.9mL/L, 3mL/L, 3.1mL/L, 3.2mL/L, 3.3mL/L, 3.4mL/L or 3.5mL/L, etc., the oxalic acid concentration can be 3.5g/L, 3.6g/L, 3.7g/L, 3.8g/L, 3.9g/L, 4g/L, 4.1g/L, 4.2g/L, 4.3g/L, 4.4.4 g/L or 4.5 mL/L, etc., the temperature may be 33 ℃, 34 ℃, 35 ℃, 36 ℃ or 37 ℃ and the time may be 3.5h, 3.6h, 3.7h, 3.8h, 3.9h, 4h, 4.1h, 4.2h, 4.3h, 4.4h or 4.5h, but is not limited to the above-mentioned values, and other values not listed in the above-mentioned numerical range are also applicable.

The media, the printing and bleaching and the deferrization process with the specific parameters can fade the original dark color of the coffee mink fur, so that the coffee mink fur can be bleached and dyed with bright color.

Preferably, the concentration of the salt in the step (4) is 35-45 g/L.

Preferably, the concentration of the bleaching agent in the step (4) is 3.5-4.5 g/L.

Preferably, the bleaching agent IN step (4) comprises any one of Weekly bleaching agent F-AR, Weekly bleaching agent F-IN or Weekly bleaching agent F-AN, preferably Weekly bleaching agent F-AR.

Preferably, the temperature of the reduction in the step (4) is 33-37 ℃ and the time is 10-14 h. .

Wherein the salt concentration may be 35g/L, 36g/L, 37g/L, 38g/L, 39g/L, 40g/L, 41g/L, 42g/L, 43g/L, 44g/L or 45g/L, the bleaching agent concentration may be 3.5g/L, 3.6g/L, 3.7g/L, 3.8g/L, 3.9g/L, 4g/L, 4.1g/L, 4.2g/L, 4.3g/L, 4.4g/L or 4.5g/L, the temperature may be 33 ℃, 34 ℃, 35 ℃, 36 ℃ or 37 ℃, the time may be 10h, 11h, 12h, 13h or 14h, etc., but not limited thereto, and any other values within the above-listed values may be applied as well.

The reduction step under the specific conditions can bleach the coffee mink fur, so that the fur can be dyed in bright color later.

Preferably, the concentration of the fur leveling agent in the step (5) is 0.4-0.6 mL/L.

Preferably, the concentration of the dye in the step (5) is 0.08-0.12 g/L.

Preferably, the concentration of the formic acid in the step (5) is 0.4-0.6 mL/L.

Preferably, the dyeing temperature in the step (5) is 55-65 ℃ and the time is 8-12 min.

Preferably, the soaking in the step (5) is continued for 1.3 to 1.7 hours.

Preferably, the dye of step (5) is an acid dye.

Wherein the concentration of the fur leveling agent can be 0.4mL/L, 0.45mL/L, 0.5mL/L, 0.55mL/L or 0.6mL/L, etc., the concentration of the dye can be 0.08g/L, 0.09g/L, 0.1g/L, 0.11g/L or 0.12g/L, etc., the concentration of the formic acid can be 0.4mL/L, 0.45mL/L, 0.5mL/L, 0.55mL/L or 0.6mL/L, etc., the temperature of the dyeing can be 55 ℃, 56 ℃, 57 ℃, 58 ℃, 59 ℃, 60 ℃, 61 ℃, 62 ℃, 63 ℃, 64 ℃ or 65 ℃, etc., the time can be 8min, 9min, 10min or 12min, etc., the time for continuing the soaking can be 1.3h, 1.4h, 1.5h, 1.6h or 1.7h, etc., but not limited to, the above-listed numerical values, and other numerical values not listed in the above numerical range are also applicable.

The dyeing process can dye the coffee mink fur with bright color by adopting the acid dye, and simultaneously avoids using the oxidative dye, thereby reducing the cost.

Preferably, before the dyeing in the step (5), the step (5') of soaking the reduced fur obtained in the step (4) in a mixed solution of salt, a degreasing agent and formic acid, adding chromium powder and baking soda for chrome tanning, and then peeling and drying to obtain the chrome-tanned fur.

Preferably, the concentration of the salt in step (5') is 35-45 g/L;

preferably, the concentration of the degreasing agent in the step (5') is 0.8-1.2 mL/L;

preferably, the degreasing agent in step (5') comprises any one of Weiss degreasing agent JA-50, Weiss degreasing agent H or Weiss degreasing agent TS-80, preferably Weiss degreasing agent JA-50.

Preferably, the concentration of formic acid in the step (5') is 0.8-1.2 mL/L;

preferably, the concentration of the chromium powder in the step (5') is 18-22 g/L;

preferably, the concentration of the baking soda in the step (5') is 3.5-4.5 g/L;

preferably, the soaking temperature in the step (5') is 33-37 ℃ and the time is 0.8-1.2 h;

preferably, the chrome tanning of step (5') is carried out for a period of 12-18 hours;

preferably, the salt comprises sodium chloride and/or sodium sulphate.

Wherein the salt concentration can be 35g/L, 36g/L, 37g/L, 38g/L, 39g/L, 40g/L, 41g/L, 42g/L, 43g/L, 44g/L or 45g/L, the degreasing agent concentration can be 0.8mL/L, 0.9mL/L, 1mL/L, 1.1mL/L or 1.2mL/L, the formic acid concentration can be 0.8mL/L, 0.9mL/L, 1mL/L, 1.1mL/L or 1.2mL/L, the chromium powder concentration can be 18g/L, 19g/L, 20g/L, 21g/L or 22g/L, the baking soda concentration can be 3.5g/L, 3.6g/L, 3.7g/L, 3.8g/L, 3.6g/L, 3.9g/L, 4g/L, 4.1g/L, 4.2g/L, 4.3g/L, 4.4g/L or 4.5g/L, etc., the soaking temperature can be 33 ℃, 34 ℃, 35 ℃, 36 ℃ or 37 ℃, etc., the soaking time can be 0.8h, 0.9h, 1h, 1.1h or 1.2h, etc., the chrome tanning time can be 12h, 13h, 14h, 15h, 16h, 17h or 18h, etc., but is not limited to the above-listed values, and other values in the above-mentioned value range can be applied similarly.

The chrome tanning enables the coffee mink pelts not to be damaged by the subsequent high temperature dyeing.

As a preferable technical scheme, the coffee mink printing, bleaching and dyeing process comprises the following steps:

(1) soaking the formaldehyde tanned coffee mink fur in a mixed solution of a wetting agent, a pH regulator, sodium hydrosulfite and ferrous sulfate at the pH value of 4.3-4.7 for 10-14h at the temperature of 30-34 ℃, and then peeling and drying to obtain mediated fur;

(2) printing a mixed solution of hydrogen peroxide, a bleaching agent and a hair protecting agent on the fur quilt of the fur after the medium obtained in the step (1), and then drying at the temperature of 45-55 ℃ for 8-12min to obtain the fur after printing and bleaching;

(3) soaking the printed and bleached fur obtained in the step (2) in a mixed solution of salt, a hair protecting agent and oxalic acid for deferrization at 33-37 ℃ for 3.5-4.5h, then peeling and drying to obtain the deferrized fur;

(4) soaking the ironed fur obtained in the step (3) in a mixed solution of salt and a bleaching agent to reduce for 10-14h at 33-37 ℃, and then peeling and drying to obtain the reduced fur;

(5) soaking the reduced fur obtained in the step (4) in a mixed solution of salt, a degreasing agent and formic acid at 33-37 ℃ for 0.8-1.2h, then adding chromium powder and baking soda for chrome tanning for 12-18h, and then peeling and drying to obtain chrome tanned fur;

(6) and (3) soaking the chrome tanned fur obtained in the step (5) in a mixed solution of a fur leveling agent and a dye for dyeing for 8-12min at 55-65 ℃, adding formic acid for further soaking for 1.3-1.7h, and then, taking out and drying to obtain the dyed fur.

On the other hand, the invention also provides the application of the coffee mink printing, bleaching and dyeing process in the production of the coffee mink printing and bleaching pattern.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, the fur is printed and bleached, and the dark color of the coffee mink fur is removed, so that the coffee mink fur can be printed and dyed with bright color, the use of the mink can be reduced on the premise of meeting the requirements of people, the cost is obviously reduced, and meanwhile, the method is easy to operate and stable in process.

Detailed Description

To further illustrate the technical means and effects of the present invention, the following further describes the technical solution of the present invention with reference to the preferred embodiments of the present invention, but the present invention is not limited to the scope of the embodiments.

IN the following examples, Weiss wetting agent Q-39, Ailite wetting agent HAC, Ailite wetting agent JFC, Weijia bleaching agent R-29, Weijia bleaching agent H-15, Weijia bleaching agent F-35, Weijia hair conditioner M-60, Weijia hair conditioner M-80, Weijia hair conditioner MB, Weijia bleaching agent F-AR, Weijia bleaching agent F-IN, Weijia bleaching agent F-AN, Weijia degreasing agent-50, Weishi degreasing agent TS-80, Weijia degreasing agent H, fur leveling agent DL, Xili fur orange FGS, Xili fur red F-2R and Xili fur yellow F-GY were all available from Beijing Panbo chemical Co.

Example 1

The embodiment provides a coffee mink printing, bleaching and dyeing process, which comprises the following operation steps:

(1) soaking the formaldehyde tanned coffee mink fur in a mixed solution of a Weiss wetting agent Q-39(0.2mL/L), ammonium chloride (2.5g/L), potassium hydrogen tartrate (1g/L), sodium hydrosulfite (0.5g/L) and ferrous sulfate (15g/L) at the pH value of 4.5 for 12 hours at the temperature of 32 ℃, and then peeling and drying to obtain mediated fur;

(2) printing a mixed solution of 50% of hydrogen peroxide (mass fraction, 200mL/L), 15g/L of Weijia bleaching agent R-29 and 10mL/L of Weijia hair protecting agent M-60 on the fur quilt of the fur after the medium obtained in the step (1), and then drying at 50 ℃ for 10min to obtain the fur after printing and bleaching;

(3) soaking the bleached fur obtained in the step (2) in a mixed solution of sodium chloride (40g/L), a Weijia hair protecting agent M-60(3mL/L) and oxalic acid (4g/L) for deferrization at 35 ℃ for 4h, and then peeling and drying to obtain the deferrized fur;

(4) soaking the ironed fur obtained in the step (3) in a mixed solution of sodium chloride (40g/L) and a Weijia bleaching agent F-AR (4g/L) to reduce for 12 hours at 35 ℃, and then peeling and drying to obtain the reduced fur;

(5) soaking the reduced fur obtained in the step (4) in a mixed solution of sodium chloride (40g/L), Weiss degreasing agent JA-50(1mL/L) and formic acid (1mL/L) for 1h at 35 ℃, adding chromium powder (20g/L) and baking soda (4g/L) for chrome tanning for 15h, and then peeling and drying to obtain the chrome-tanned fur.

(6) And (3) soaking the chrome tanned fur obtained in the step (5) in a mixed solution of a fur leveling agent DL (0.5mL/L) and a Hili fur orange FGS (0.1g/L) for dyeing at 60 ℃ for 10min, then adding formic acid (0.5mL/L) for further soaking for 1.5h, and then peeling and drying to obtain the dyed fur.

Example 2

(1) soaking the formaldehyde tanned coffee mink fur in a mixed solution of a Weiss wetting agent Q-39(0.15mL/L), ammonium chloride (2.5g/L), potassium hydrogen tartrate (1g/L), sodium hydrosulfite (0.4g/L) and ferrous sulfate (13g/L) at the pH value of 4.3 for 14 hours at the temperature of 30 ℃, and then peeling and drying to obtain mediated fur;

(2) printing a mixed solution of 50% of hydrogen peroxide (mass fraction, 180mL/L), 13g/L of Weijia bleaching agent R-29 and 8mL/L of Weijia hair protecting agent M-60 on the fur quilt of the fur after the medium obtained in the step (1), and then drying at 45 ℃ for 12min to obtain the fur after printing and bleaching;

(3) soaking the bleached fur obtained in the step (2) in a mixed solution of sodium chloride (35g/L), a Weijia hair-protecting agent M-60(2.5mL/L) and oxalic acid (3.5g/L) for deferrization at 33 ℃ for 4.5h, and then peeling and drying to obtain the deferrized fur;

(4) soaking the ironed fur obtained in the step (3) in a mixed solution of sodium chloride (35g/L) and a Weijia bleaching agent F-AR (3.5g/L) to reduce for 14h at 33 ℃, and then peeling and drying to obtain the reduced fur;

(5) soaking the reduced fur obtained in the step (4) in a mixed solution of sodium chloride (35g/L), Weiss degreasing agent JA-50(0.8mL/L) and formic acid (0.8mL/L) for 1.2h at 33 ℃, adding chromium powder (18g/L) and baking soda (3.5g/L) for chrome tanning for 18h, and then peeling and drying to obtain the chrome-tanned fur.

(6) And (3) soaking the chrome tanned fur obtained in the step (5) in a mixed solution of a fur leveling agent DL (0.4mL/L) and Hili fur red F-2R (0.08g/L) for dyeing for 12min at 55 ℃, adding formic acid (0.4mL/L) for further soaking for 1.7h, and then peeling and drying to obtain the dyed fur.

Example 3

(1) soaking the formaldehyde tanned coffee mink fur in a mixed solution of a Weiss wetting agent Q-39(0.25mL/L), ammonium chloride (2.5g/L), potassium hydrogen tartrate (1g/L), sodium hydrosulfite (0.6g/L) and ferrous sulfate (17g/L) at the pH value of 4.7 for 10 hours at the temperature of 34 ℃, and then peeling and drying to obtain mediated fur;

(2) printing a mixed solution of 50% of hydrogen peroxide (mass percent, 220mL/L), 17g/L of Weijia bleaching agent R-29 and 12mL/L of Weijia hair conditioner M-60 on the fur quilt of the fur after the medium obtained in the step (1), and then drying at 55 ℃ for 8min to obtain the fur after printing and bleaching;

(3) soaking the printed and bleached fur obtained in the step (2) in a mixed solution of sodium sulfate (45g/L), a Weijia hair protecting agent M-60(3.5mL/L) and oxalic acid (4.5g/L) for deferrization at 37 ℃ for 3.5h, and then peeling and drying to obtain the deferrized fur;

(4) soaking the ironed fur obtained in the step (3) in a mixed solution of sodium sulfate (45g/L) and a Weijia bleaching agent F-AR (4.5g/L) to reduce for 10 hours at 37 ℃, and then peeling and drying to obtain the reduced fur;

(5) soaking the reduced fur obtained in the step (4) in a mixed solution of sodium sulfate (45g/L), Weiss degreasing agent JA-50(1.2mL/L) and formic acid (1.2mL/L) for 0.8h at 33 ℃, adding chromium powder (22g/L) and baking soda (4.5g/L) for chrome tanning for 12h, and then peeling and drying to obtain the chrome-tanned fur.

(6) And (3) soaking the chrome tanned fur obtained in the step (5) in a mixed solution of a fur leveling agent DL (0.6mL/L) and Hili fur yellow F-GY (0.12g/L) for dyeing for 8min at 65 ℃, adding formic acid (0.6mL/L) for further soaking for 1.3h, and then peeling and drying to obtain the dyed fur.

Example 4

This example provides a process for bleaching and dyeing a coffee mink, which is carried out in accordance with example 1, except that the amount of the welfare wetting agent Q-39 in step (1) is replaced by the same amount of the alite wetting agent HAC.

Example 5

This example provides a process for bleaching and dyeing a coffee mink, which is carried out in accordance with example 1, except that in step (1) the weiss wetting agent Q-39 is replaced by an equivalent amount of an alite wetting agent JFC.

Example 6

This example provides a process for bleaching and dyeing a coffee mink, which is the same as example 1 except that the amount of the Weijia bleaching agent R-29 in step (2) is replaced by the same amount of the Weijia bleaching agent H-15.

Example 7

This example provides a process for bleaching and dyeing a coffee mink, which is the same as that of example 1 except that the amount of the Weijia bleaching agent R-29 in step (2) is replaced by an equal amount of the Weijia bleaching agent F-35.

Example 8

This example provides a process for bleaching and dyeing a coffee mink, which is the same as example 1 except that the same amount of Weijia hair conditioner M-80 is substituted for the Weijia hair conditioner M-60 in step (3).

Example 9

This example provides a process for bleaching and dyeing a coffee mink, which is the same as example 1 except that the same amount of the Weijia hair conditioner MB is used in the step (3) instead of the Weijia hair conditioner M-60.

Example 10

This example provides a process for bleaching and dyeing a coffee mink, which is carried out IN the same manner as IN example 1 except that the amount of the Weak bleaching agent F-AR IN step (4) is replaced by an equal amount of the Weak bleaching agent F-IN.

Example 11

This example provides a process for bleaching and dyeing a coffee mink, which is carried out in the same manner as in example 1 except that the amount of the Weak bleaching agent F-AR in step (4) is replaced by AN equal amount of the Weak bleaching agent F-AN.

Example 12

The embodiment provides a bleaching and dyeing process for a coffee mink, and the operation steps are the same as those of embodiment 1 except that the Weiss degreasing agent JA-50 in the step (5) is replaced by equivalent Weiss degreasing agent TS-80.

Example 13

The embodiment provides a bleaching and dyeing process for a coffee mink, and the operation steps are the same as those of embodiment 1 except that the Weiss degreasing agent JA-50 in the step (5) is replaced by the same Weiss degreasing agent H.

Comparative example 1

The comparative example provides a coffee mink printing, bleaching and dyeing process, which comprises the following operation steps:

(1) soaking the formaldehyde tanned coffee mink fur in a mixed solution of a Weiss wetting agent Q-39(0.2mL/L), ammonium chloride (2.5g/L), potassium hydrogen tartrate (1g/L) and sodium hydrosulfite (0.5g/L) at the pH value of 4.5 for 12h at the temperature of 32 ℃, and then peeling and drying to obtain mediated fur;

(3) soaking the bleached fur obtained in the step (2) in a mixed solution of sodium chloride (40g/L) and a Weijia bleaching agent F-AR (4g/L) to reduce for 12 hours at 35 ℃, and then peeling and drying to obtain reduced fur;

(4) soaking the reduced fur obtained in the step (3) in a mixed solution of sodium chloride (40g/L), Weiss degreasing agent JA-50(1mL/L) and formic acid (1mL/L) for 1h at 35 ℃, adding chromium powder (20g/L) and baking soda (4g/L) for chrome tanning for 15h, and then peeling and drying to obtain the chrome-tanned fur.

(5) And (3) soaking the chrome tanned fur obtained in the step (4) in a mixed solution of a fur leveling agent DL (0.5mL/L) and a Hili fur orange FGS (0.1g/L) for dyeing at 60 ℃ for 10min, then adding formic acid (0.5mL/L) for further soaking for 1.5h, and then peeling and drying to obtain the dyed fur.

Comparative example 2

(4) soaking the ironed fur obtained in the step (3) in a mixed solution of sodium chloride (40g/L), Weiss degreasing agent JA-50(1mL/L) and formic acid (1mL/L) for 1h at 35 ℃, adding chromium powder (20g/L) and baking soda (4g/L) for chrome tanning for 15h, peeling and drying to obtain the chrome-tanned fur.

Comparative example 3

The comparative example provides a process for bleaching and dyeing the coffee mink, which comprises the following operation steps of no wetting agent is added in the step (1), and the reduced part is proportionally distributed to a pH regulator, sodium hydrosulfite and ferrous sulfate, and the rest is the same as the operation step 1.

Comparative example 4

The comparative example provides a process for bleaching and dyeing the coffee mink, and the operation steps are the same as the example 1 except that no pH regulator is added in the step (1), and the reduced part is proportionally distributed to a wetting agent, sodium hydrosulfite and ferrous sulfate.

Comparative example 5

The comparative example provides a coffee mink printing, bleaching and dyeing process, and the operation steps are the same as those of the example 1 except that no sodium hydrosulfite is added in the step (1), and the reduced part is proportionally distributed to a wetting agent, a pH regulator and ferrous sulfate.

And (3) performance testing:

the dyed skins provided in examples 1 to 13 and comparative examples 1 to 5 were tested for various indices and recorded:

and (3) detecting the dyed fur, wherein the detection standards are as follows:

QB/T2925-2007 test method for color fastness to sunlight of fur

QB/T2790-2006 method for testing color fastness to rubbing of dyed fur

QB/T2924-2007 test method for color fastness to perspiration of fur

ISO 11642 + 1993 color fastness to washing in leather color fastness test

The detection results are as follows:

wherein the appearance test criteria are as follows:

superior food	Has no difference with the dyeing appearance effect of common minks
		Good wine	The effect is not obviously different from the dyeing appearance of the common mink
In	The appearance effect of the product is different from that of common mink dyeing
		Difference (D)	Has obvious difference with the dyeing appearance of common minks

From the data, all the test parameters of the dyeing process provided by the invention reach the standard, and the daily requirements of people can be met; meanwhile, the wetting agent, the pH regulator, the sodium hydrosulfite and the ferrous sulfate have synergistic effect, so that the bleaching effect is improved, and the dyeing effect is further improved; meanwhile, within the preferable raw material selection range of the invention, the dyeing effect is further improved.

By summarizing the data, the coffee mink printing, bleaching and dyeing process provided by the invention has the advantages that the coffee mink is adopted to replace the mink on the premise of meeting daily requirements of people, the cost is reduced, the problem of difficulty in dyeing the coffee mink is solved, and the coffee mink printing, bleaching and dyeing process for dyeing the coffee mink is successfully developed.

The applicant states that the invention is illustrated by the above examples of the process and application of the invention, but the invention is not limited to the above examples, i.e. it is not intended that the invention is necessarily dependent on the above examples for its implementation. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.

The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.

Claims

1. The coffee mink printing, bleaching and dyeing process is characterized by comprising the following steps:

2. The process of claim 1, wherein the pH regulator in step (1) comprises one or a combination of at least two of ammonium chloride, potassium hydrogen tartrate and sodium formate;

preferably, the concentration of the pH regulator in the step (1) is 0.5-3.5 g/L;

preferably, the concentration of the wetting agent in the step (1) is 0.15-0.25 mL/L;

preferably, the wetting agent in the step (1) comprises any one of a Weiss wetting agent Q-39, an Elite wetting agent HAC or an Elite wetting agent JFC, preferably the Weiss wetting agent Q-39;

preferably, the concentration of the sodium hydrosulfite in the step (1) is 0.4-0.6 g/L;

preferably, the concentration of the ferrous sulfate in the step (1) is 13-17 g/L;

preferably, the pH of the mixed solution in the step (1) is 4.3-4.7;

3. The ferret printing, bleaching and dyeing process as claimed in claim 1 or 2, wherein the concentration of the hydrogen peroxide in the step (2) is 180-220 mL/L;

preferably, the concentration of the bleaching agent in the step (2) is 13-17 g/L;

preferably, the bleaching agent in the step (2) comprises any one of a Velcro bleaching agent R-29, a Velcro bleaching agent H-15 or a Velcro bleaching agent F-35, preferably the Velcro bleaching agent R-29;

preferably, the concentration of the hair care agent in the step (2) is 8-12 mL/L;

4. The process for marking, bleaching and dyeing the coffee mink according to any one of claims 1 to 3, characterized in that the concentration of the salt in step (3) is 35 to 45 g/L;

preferably, the concentration of the hair care agent in the step (3) is 2.5-3.5 mL/L;

preferably, the hair care agent comprises any one of a Weijia hair care agent M-60, a Weijia hair care agent M-80 or a Weijia hair care agent MB, and preferably the Weijia hair care agent M-60;

preferably, the concentration of the oxalic acid in the step (3) is 3.5-4.5 g/L;

5. The process for marking, bleaching and dyeing the coffee mink according to any one of claims 1 to 4, characterized in that the concentration of the salt in step (4) is 35 to 45 g/L;

preferably, the concentration of the bleaching agent in the step (4) is 3.5-4.5 g/L;

preferably, the bleaching agent IN the step (4) comprises any one of a Velcro bleaching agent F-AR, a Velcro bleaching agent F-IN or a Velcro bleaching agent F-AN, preferably a Velcro bleaching agent F-AR;

preferably, the temperature of the reduction in the step (4) is 33-37 ℃ and the time is 10-14 h.

6. The process for caffet printing and dyeing according to any one of claims 1-5, characterized in that the concentration of the fur leveling agent of step (5) is 0.4-0.6 mL/L;

preferably, the concentration of the dye in the step (5) is 0.08-0.12 g/L;

preferably, the concentration of the formic acid in the step (5) is 0.4-0.6 mL/L;

preferably, the dyeing temperature in the step (5) is 55-65 ℃ and the time is 8-12 min;

preferably, the continuous soaking time in the step (5) is 1.3-1.7 h;

preferably, the dye of step (5) is an acid dye.

7. The process of caffet bleaching and dyeing according to any one of claims 1-6, characterized in that step (5) of dyeing further comprises the step (5') of soaking the reduced fur obtained in step (4) in a mixed solution of salt, degreasing agent and formic acid, then adding chrome powder and baking soda for chrome tanning, and then peeling and drying to obtain chrome-tanned fur.

8. The process for marking, bleaching and dyeing the coffee mink according to any one of claims 1 to 7, characterized in that the concentration of the salt in step (5') is 35 to 45 g/L;

preferably, the degreasing agent in the step (5') comprises any one of a Weiss degreasing agent JA-50, a Weiss degreasing agent H or a Weiss degreasing agent TS-80, preferably the Weiss degreasing agent JA-50;

preferably, the concentration of formic acid in the step (5') is 0.8-1.2 mL/L;

preferably, the salt comprises sodium chloride and/or sodium sulphate.

9. The process according to any one of claims 1 to 8, characterized in that it comprises the following steps:

10. Use of the process of the coffee mink printing, bleaching and dyeing according to any one of claims 1-9 in the production of coffee mink printing and bleaching patterns.