CN114182049A - Mercerizing fatting agent and preparation method and application thereof - Google Patents
Mercerizing fatting agent and preparation method and application thereof Download PDFInfo
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- CN114182049A CN114182049A CN202111264303.0A CN202111264303A CN114182049A CN 114182049 A CN114182049 A CN 114182049A CN 202111264303 A CN202111264303 A CN 202111264303A CN 114182049 A CN114182049 A CN 114182049A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 57
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 25
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000003921 oil Substances 0.000 claims abstract description 15
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 claims abstract description 15
- 229940001584 sodium metabisulfite Drugs 0.000 claims abstract description 15
- 235000010262 sodium metabisulphite Nutrition 0.000 claims abstract description 15
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 14
- 239000003899 bactericide agent Substances 0.000 claims abstract description 14
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 14
- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 13
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 13
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000004166 Lanolin Substances 0.000 claims abstract description 11
- 239000004359 castor oil Substances 0.000 claims abstract description 11
- 235000019438 castor oil Nutrition 0.000 claims abstract description 11
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims abstract description 11
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims abstract description 11
- 229940039717 lanolin Drugs 0.000 claims abstract description 11
- 235000019388 lanolin Nutrition 0.000 claims abstract description 11
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 241000283690 Bos taurus Species 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000000243 solution Substances 0.000 claims description 48
- 238000006243 chemical reaction Methods 0.000 claims description 35
- 238000001816 cooling Methods 0.000 claims description 24
- 238000010438 heat treatment Methods 0.000 claims description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 230000001804 emulsifying effect Effects 0.000 claims description 12
- 239000012295 chemical reaction liquid Substances 0.000 claims description 11
- 239000011259 mixed solution Substances 0.000 claims description 10
- 235000010354 butylated hydroxytoluene Nutrition 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- SPSPIUSUWPLVKD-UHFFFAOYSA-N 2,3-dibutyl-6-methylphenol Chemical group CCCCC1=CC=C(C)C(O)=C1CCCC SPSPIUSUWPLVKD-UHFFFAOYSA-N 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- DMSMPAJRVJJAGA-UHFFFAOYSA-N benzo[d]isothiazol-3-one Chemical group C1=CC=C2C(=O)NSC2=C1 DMSMPAJRVJJAGA-UHFFFAOYSA-N 0.000 claims description 2
- LYCAIKOWRPUZTN-NMQOAUCRSA-N 1,2-dideuteriooxyethane Chemical group [2H]OCCO[2H] LYCAIKOWRPUZTN-NMQOAUCRSA-N 0.000 claims 1
- 239000010985 leather Substances 0.000 abstract description 19
- 239000002932 luster Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 210000002257 embryonic structure Anatomy 0.000 abstract 1
- 230000035807 sensation Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 230000032683 aging Effects 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005517 mercerization Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C9/00—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes
- C14C9/02—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes using fatty or oily materials, e.g. fat liquoring
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B1/00—Manufacture of leather; Machines or devices therefor
- C14B1/44—Mechanical treatment of leather surfaces
- C14B1/46—Fluffing, buffing, or sanding
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B1/00—Manufacture of leather; Machines or devices therefor
- C14B1/44—Mechanical treatment of leather surfaces
- C14B1/50—Glazing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The invention discloses a mercerized fat liquor, a preparation method and application thereof, relates to the technical field of leather chemical industry, and solves the problems that the mercerized fat liquor in the prior art is not very strong in silky luster, poor in oil feeling of leather embryos after fat liquor is added, and the suede is easy to be scorched in the leather grinding process. The mercerized fat liquor comprises the following components in parts by weight: 30-70 parts of refined lanolin, 30-70 parts of refined lard, 10-20 parts of diethanolamine, 0.2-0.3 part of sodium methoxide, 25-30 parts of maleic anhydride, 25-30 parts of sodium metabisulfite, 40-50 parts of sodium hydroxide solution, 145-170 parts of water, 110-120 parts of sulfated neat's foot oil, 50-100 parts of sulfated castor oil, 10-20 parts of emulsifier, 2-4 parts of antioxidant, 10-20 parts of butyl cellosolve and 2-4 parts of bactericide. The mercerized fat-liquoring agent has the advantage of good stability, and has the advantages of strong velvet silky light sensation and easiness in leather grinding when being applied to cattle second-layer leather or pigskin.
Description
Technical Field
The invention relates to the technical field of leather chemical industry, in particular to a mercerizing fatliquor, and a preparation method and application thereof.
Background
For most suede leathers, the mercerized feeling can obviously improve the grade of the leather and increase the added value. The pile should have a silky, strong and soft luster, and silky, smooth feel. The problems that the silky feeling of the currying agent and the mercerized fat-liquoring agent in the current market is not very strong, the greased leather blank has poor oil feeling, and the suede is easy to be scorched in the leather buffing process are generally existed. Therefore, the design of the compound fatliquor enables the compound fatliquor to have stronger mercerization performance, stronger light resistance and ageing resistance on the two-layer suede, and bleaching and discoloration situations can not occur after fatliquor is added, so that the technical problem to be solved by the technical personnel in the field is urgently needed.
Disclosure of Invention
The invention aims to provide a mercerized fat-liquoring agent, a preparation method and an application thereof, and solves the technical problems that the mercerized fat-liquoring agent in the prior art is not very strong in silky luster, poor in oil feel of a leather blank after fatliquoring, and easy to cause scorching on a suede surface in a leather buffing process. The various technical effects that can be produced by the preferred technical solution of the present invention are described in detail below.
In order to achieve the purpose, the invention provides the following technical scheme:
the mercerized fat liquor comprises the following components in parts by weight: 30-70 parts of refined lanolin, 30-70 parts of refined lard, 10-20 parts of diethanolamine, 0.2-0.3 part of sodium methoxide, 25-30 parts of maleic anhydride, 25-30 parts of sodium metabisulfite, 40-50 parts of sodium hydroxide solution, 145-170 parts of water, 110-120 parts of sulfated neat's foot oil, 50-100 parts of sulfated castor oil, 10-20 parts of emulsifier, 2-4 parts of antioxidant, 10-20 parts of butyl cellosolve and 2-4 parts of bactericide.
According to a preferred embodiment, the disinfectant comprises 30-50 parts of refined lanolin, 50-70 parts of refined lard, 15-20 parts of diethanolamine, 0.2-0.3 part of sodium methoxide, 25-30 parts of maleic anhydride, 25-30 parts of sodium metabisulfite, 40-50 parts of sodium hydroxide solution, 145-170 parts of water, 110-120 parts of sulfated neat's foot oil, 50-100 parts of sulfated castor oil, 10 parts of an emulsifier, 2 parts of an antioxidant, 10 parts of butyl cellosolve and 2 parts of a bactericide.
According to a preferred embodiment, the sodium hydroxide solution has a mass fraction of 30%.
According to a preferred embodiment, the emulsifier is an isomeric alcohol ethoxylate. Without being limited thereto, the other types of emulsifiers may be selected in the preferred embodiment of the present invention.
According to a preferred embodiment, the antioxidant is dibutylhydroxytoluene. Without being limited thereto, the other types of antioxidants may be selected in the preferred embodiment of the present invention.
According to a preferred embodiment, the bactericidal agent is 1, 2-benzisothiazolin-3-one. Without being limited thereto, other types of bactericides may be selected as well in the preferred embodiment of the present invention.
The preparation method of the mercerized fat-liquoring agent in any technical scheme of the invention comprises the following steps:
adding 30-70 parts of refined lanolin, 30-70 parts of refined lard, 10-20 parts of diethanolamine and 0.2-0.3 part of sodium methoxide into a reaction kettle, heating to 130-140 ℃, and reacting for 4-6 hours under the protection of nitrogen; cooling to 80-90 ℃, adding 25-30 parts of maleic anhydride, reacting for 1 hour under a vacuum condition, and cooling to 60-65 ℃ to obtain a reaction liquid A;
uniformly mixing 25-30 parts of sodium metabisulfite and 145-170 parts of water, adding 40-50 parts of sodium hydroxide solution, controlling the temperature of the mixed solution not to exceed 40 ℃ and the pH value to be 7.5-8.5, and obtaining reaction liquid B;
uniformly dripping the solution B into the solution A, keeping the temperature stable at 60-65 ℃, keeping the temperature for 1 hour, heating to 80-85 ℃, keeping the temperature for 2-4 hours, cooling to 45-50 ℃, adjusting the pH to 6-8 with a sodium hydroxide solution, judging the emulsifying property, stopping the reaction when the emulsifying property meets the requirement, and obtaining a reaction solution C for later use;
heating the reaction liquid C to 50-55 ℃, and adding 110-120 parts of sulfated neat's foot oil, 50-100 parts of sulfated castor oil, 10-20 parts of an emulsifier and 2-4 parts of an antioxidant; and cooling to 35-40 ℃, adding 10-20 parts of butyl cellosolve and 2-4 parts of bactericide, and keeping the temperature for 1 hour to obtain the mercerizing fatliquor.
According to a preferred embodiment, during the preparation of the reaction solution a, the vacuum conditions are: the vacuum degree is less than-0.06 MPa.
The application of the mercerized fat-liquoring agent in the second layer of the cattle skin according to any technical scheme in the invention.
The application of the mercerized fat-liquoring agent in any technical scheme of the invention to pigskin.
The mercerized fat liquor, the preparation method and the application thereof at least have the following beneficial technical effects:
the mercerized fatting agent disclosed by the invention has the advantages of good stability, strong light resistance and strong ageing resistance, and the preparation method is simple, green and environment-friendly, and the price of the required raw materials is low. The mercerized fat liquor provided by the invention is applied to the second-layer cow leather or pigskin, has the advantages of good absorption and permeation effects, softness of the second-layer cow leather or pigskin, strong mercerized texture and easiness in leather grinding, and does not have bleaching and color change after fat liquor is added. The mercerized fat-liquoring agent, the preparation method and the application thereof solve the technical problems that the mercerized fat-liquoring agent in the prior art is not very strong in silky feel, poor in oil feel of a greased leather blank and easy to cause scorching on a suede surface in a leather grinding process.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The mercerized fat-liquoring agent and the preparation method thereof are described in detail in the following with reference to examples 1 to 4.
Example 1
The mercerized fatliquor of the embodiment is prepared by the following steps:
s1: adding 30g of refined lanolin, 70g of refined lard, 15g of diethanolamine and 0.2g of sodium methoxide into a reaction kettle, heating to 130-140 ℃, and reacting for 4-6 hours under the protection of nitrogen; and cooling to 80-90 ℃, adding 25g of maleic anhydride, reacting for 1 hour under a vacuum condition (the vacuum degree is lower than-0.06 MPa), and cooling to 60-65 ℃ to obtain a reaction solution A.
S2: preparing a sodium metabisulfite mixed solution: uniformly mixing 25g of sodium metabisulfite and 145g of water, adding 40g of sodium hydroxide solution with the mass fraction of 30%, wherein the reaction is an exothermic reaction, controlling the temperature of the mixed solution to be not more than 40 ℃ and the pH value to be 7.5-8.5, and obtaining a reaction solution B.
S3: and uniformly dropwise adding the solution B into the solution A, keeping the temperature stable at 60-65 ℃, keeping the temperature for 1 hour, heating to 80-85 ℃, keeping the temperature for 2-4 hours, cooling to 45-50 ℃, adjusting the pH to 6-8 by using a sodium hydroxide solution with the mass fraction of 30%, judging the emulsifying property, stopping the reaction when the emulsifying property meets the requirement, and obtaining a reaction solution C for later use.
S4: heating the reaction liquid C TO 50-55 ℃, and adding 110g of sulfated neat's foot oil, 50g of sulfated castor oil, TO-710 g of emulsifier and 2g of antioxidant BHT; and cooling to 35-40 ℃, adding 10g of butyl cellosolve and 202 g of bactericide BIT-202, and keeping the temperature for 1 hour to obtain the mercerizing fatliquor.
Example 2
The mercerized fatliquor of the embodiment is prepared by the following steps:
s1: adding 50g of refined lanolin, 50g of refined lard, 20g of diethanolamine and 0.3g of sodium methoxide into a reaction kettle, heating to 130-140 ℃, and reacting for 4-6 hours under the protection of nitrogen; and cooling to 80-90 ℃, adding 25g of maleic anhydride, reacting for 1 hour under a vacuum condition (the vacuum degree is lower than-0.06 MPa), and cooling to 60-65 ℃ to obtain a reaction solution A.
S2: preparing a sodium metabisulfite mixed solution: uniformly mixing 25g of sodium metabisulfite and 145g of water, adding 40g of sodium hydroxide solution with the mass fraction of 30%, wherein the reaction is an exothermic reaction, controlling the temperature of the mixed solution to be not more than 40 ℃ and the pH value to be 7.5-8.5, and obtaining a reaction solution B.
S3: and uniformly dropwise adding the solution B into the solution A, keeping the temperature stable at 60-65 ℃, keeping the temperature for 1 hour, heating to 80-85 ℃, keeping the temperature for 2-4 hours, cooling to 45-50 ℃, adjusting the pH to 6-8 by using a sodium hydroxide solution with the mass fraction of 30%, judging the emulsifying property, stopping the reaction when the emulsifying property meets the requirement, and obtaining a reaction solution C for later use.
S4: heating the reaction liquid C TO 50-55 ℃, and adding 110g of sulfated neat's foot oil, 50g of sulfated castor oil, TO-710 g of emulsifier and 2g of antioxidant BHT; and cooling to 35-40 ℃, adding 10g of butyl cellosolve and 202 g of bactericide BIT-202, and keeping the temperature for 1 hour to obtain the mercerizing fatliquor.
Example 3
The mercerized fatliquor of the embodiment is prepared by the following steps:
s1: adding 30g of refined lanolin, 70g of refined lard, 15g of diethanolamine and 0.2g of sodium methoxide into a reaction kettle, heating to 130-140 ℃, and reacting for 4-6 hours under the protection of nitrogen; and cooling to 80-90 ℃, adding 25g of maleic anhydride, reacting for 1 hour under a vacuum condition (the vacuum degree is lower than-0.06 MPa), and cooling to 60-65 ℃ to obtain a reaction solution A.
S2: preparing a sodium metabisulfite mixed solution: uniformly mixing 25g of sodium metabisulfite and 145g of water, adding 40g of sodium hydroxide solution with the mass fraction of 30%, wherein the reaction is an exothermic reaction, controlling the temperature of the mixed solution to be not more than 40 ℃ and the pH value to be 7.5-8.5, and obtaining a reaction solution B.
S3: and uniformly dropwise adding the solution B into the solution A, keeping the temperature stable at 60-65 ℃, keeping the temperature for 1 hour, heating to 80-85 ℃, keeping the temperature for 2-4 hours, cooling to 45-50 ℃, adjusting the pH to 6-8 by using a sodium hydroxide solution with the mass fraction of 30%, judging the emulsifying property, stopping the reaction when the emulsifying property meets the requirement, and obtaining a reaction solution C for later use.
S4: heating the reaction liquid C TO 50-55 ℃, and adding 115g of sulfated neat's foot oil, 100g of sulfated castor oil, TO-710 g of emulsifier and 2g of antioxidant BHT; and cooling to 35-40 ℃, adding 10g of butyl cellosolve and 202 g of bactericide BIT-202, and keeping the temperature for 1 hour to obtain the mercerizing fatliquor.
Example 4
The mercerized fatliquor of the embodiment is prepared by the following steps:
s1: adding 50g of refined lanolin, 50g of refined lard, 15g of diethanolamine and 0.2g of sodium methoxide into a reaction kettle, heating to 130-140 ℃, and reacting for 4-6 hours under the protection of nitrogen; and cooling to 80-90 ℃, adding 30g of maleic anhydride, reacting for 1 hour under a vacuum condition (the vacuum degree is lower than-0.06 MPa), and cooling to 60-65 ℃ to obtain a reaction solution A.
S2: preparing a sodium metabisulfite mixed solution: uniformly mixing 30g of sodium metabisulfite and 170g of water, adding 50g of sodium hydroxide solution with the mass fraction of 30%, wherein the reaction is an exothermic reaction, controlling the temperature of the mixed solution to be not more than 40 ℃ and the pH value to be 7.5-8.5, and obtaining a reaction solution B.
S3: and uniformly dropwise adding the solution B into the solution A, keeping the temperature stable at 60-65 ℃, keeping the temperature for 1 hour, heating to 80-85 ℃, keeping the temperature for 2-4 hours, cooling to 45-50 ℃, adjusting the pH to 6-8 by using a sodium hydroxide solution with the mass fraction of 30%, judging the emulsifying property, stopping the reaction when the emulsifying property meets the requirement, and obtaining a reaction solution C for later use.
S4: heating the reaction liquid C TO 50-55 ℃, and adding 120g of sulfated neat's foot oil, 80g of sulfated castor oil, TO-710 g of emulsifier and 2g of antioxidant BHT; and cooling to 35-40 ℃, adding 10g of butyl cellosolve and 202 g of bactericide BIT-202, and keeping the temperature for 1 hour to obtain the mercerizing fatliquor.
The mercerized fatting agent obtained in the embodiments 1 to 4 and the existing mercerized fatting agent in the market are applied to the second layer of the cow leather, and the second layer of the cow leather is fatted according to the process shown in the table 1, wherein the fatting effect is shown in the following table 2.
TABLE 1 cow leather two-layer suede greasing technical watch
TABLE 2 comparison of the mercerized fat-liquoring agents of examples 1-4 with the fat-liquoring effect of the market products
As can be seen from Table 2, the fat-liquoring agents obtained in the embodiments 1-4 of the invention have better fat-liquoring effect than similar products in the market, and the preparation method of the fat-liquoring agent is simple, green and environment-friendly and has low price.
The mercerized fat-liquoring agents obtained in examples 1 to 4 and the mercerized fat-liquoring agents existing in the market were filled in glass bottles of the same specification in an equal amount, and were placed at 40 ℃ to observe the appearance of each fat-liquoring agent on days 0, months 3, months 6, months 9 and months 12, and the results are shown in table 3.
Table 3 observation table of phenomenon after placing the mercerized fat-liquoring agent of embodiments 1 to 4 and market products
From the table 3, the mercerized fat-liquoring agent disclosed by the invention is superior to similar products in the market in stability performance, and is more stable and better in effect.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. The mercerized fat-liquoring agent is characterized by comprising the following components in parts by weight: 30-70 parts of refined lanolin, 30-70 parts of refined lard, 10-20 parts of diethanolamine, 0.2-0.3 part of sodium methoxide, 25-30 parts of maleic anhydride, 25-30 parts of sodium metabisulfite, 40-50 parts of sodium hydroxide solution, 145-170 parts of water, 110-120 parts of sulfated neat's foot oil, 50-100 parts of sulfated castor oil, 10-20 parts of emulsifier, 2-4 parts of antioxidant, 10-20 parts of butyl cellosolve and 2-4 parts of bactericide.
2. The mercerizing fatliquor according to claim 1, wherein 30-50 parts of refined lanolin, 50-70 parts of refined lard, 15-20 parts of diethanolamine, 0.2-0.3 part of sodium methoxide, 25-30 parts of maleic anhydride, 25-30 parts of sodium metabisulfite, 40-50 parts of sodium hydroxide solution, 145-170 parts of water, 110-120 parts of sulfated neat's foot oil, 50-100 parts of sulfated castor oil, 10 parts of emulsifier, 2 parts of antioxidant, 10 parts of ethylene glycol monobutyl ether and 2 parts of bactericide.
3. A mercerized fatliquor according to claim 1 or 2, wherein the mass fraction of the sodium hydroxide solution is 30%.
4. A mercerized fatliquor according to claim 1 or 2, wherein the emulsifier is an isomeric alcohol ethoxylate.
5. A mercerized fatliquor according to claim 1 or 2, wherein the antioxidant is dibutylhydroxytoluene.
6. A mercerized fatliquor according to claim 1 or 2, wherein the bactericide is 1, 2-benzisothiazolin-3-one.
7. A process for the preparation of a mercerized fatliquor according to any one of claims 1 to 6, which comprises the following steps:
adding 30-70 parts of refined lanolin, 30-70 parts of refined lard, 10-20 parts of diethanolamine and 0.2-0.3 part of sodium methoxide into a reaction kettle, heating to 130-140 ℃, and reacting for 4-6 hours under the protection of nitrogen; cooling to 80-90 ℃, adding 25-30 parts of maleic anhydride, reacting for 1 hour under a vacuum condition, and cooling to 60-65 ℃ to obtain a reaction liquid A;
uniformly mixing 25-30 parts of sodium metabisulfite and 145-170 parts of water, adding 40-50 parts of sodium hydroxide solution, controlling the temperature of the mixed solution not to exceed 40 ℃ and the pH value to be 7.5-8.5, and obtaining reaction liquid B;
uniformly dripping the solution B into the solution A, keeping the temperature stable at 60-65 ℃, keeping the temperature for 1 hour, heating to 80-85 ℃, keeping the temperature for 2-4 hours, cooling to 45-50 ℃, adjusting the pH to 6-8 with a sodium hydroxide solution, judging the emulsifying property, stopping the reaction when the emulsifying property meets the requirement, and obtaining a reaction solution C for later use;
heating the reaction liquid C to 50-55 ℃, and adding 110-120 parts of sulfated neat's foot oil, 50-100 parts of sulfated castor oil, 10-20 parts of an emulsifier and 2-4 parts of an antioxidant; and cooling to 35-40 ℃, adding 10-20 parts of butyl cellosolve and 2-4 parts of bactericide, and keeping the temperature for 1 hour to obtain the mercerizing fatliquor.
8. The method for preparing the mercerized fat-liquoring agent according to claim 7, wherein during the process of preparing the reaction liquid A, the vacuum condition is as follows: the vacuum degree is less than-0.06 MPa.
9. Use of a mercerized fatliquor according to any one of claims 1 to 6 on bovine split skin.
10. Use of a mercerized fatliquor according to any one of claims 1 to 6 on pig skin.
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| CN202111264303.0A CN114182049A (en) | 2021-10-28 | 2021-10-28 | Mercerizing fatting agent and preparation method and application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115449572A (en) * | 2022-08-22 | 2022-12-09 | 四川达威科技股份有限公司 | Mercerizing fatliquor additive and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4074968A (en) * | 1976-04-15 | 1978-02-21 | Diamond Shamrock Corporation | Retanning and fatliquoring agent |
| CN1546690A (en) * | 2003-12-15 | 2004-11-17 | 陕西科技大学 | Lanolin leather fatting agent preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115449572B (en) * | 2022-08-22 | 2024-03-15 | 四川达威科技股份有限公司 | Mercerizing fatliquor auxiliary agent and preparation method and application thereof |
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