CN108265136B - Leather care agent and preparation method thereof - Google Patents
Leather care agent and preparation method thereof Download PDFInfo
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- CN108265136B CN108265136B CN201810242462.2A CN201810242462A CN108265136B CN 108265136 B CN108265136 B CN 108265136B CN 201810242462 A CN201810242462 A CN 201810242462A CN 108265136 B CN108265136 B CN 108265136B
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- 239000010985 leather Substances 0.000 title claims abstract description 103
- 238000002360 preparation method Methods 0.000 title abstract description 19
- VYGQUTWHTHXGQB-FFHKNEKCSA-N Retinol Palmitate Chemical compound CCCCCCCCCCCCCCCC(=O)OC\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C VYGQUTWHTHXGQB-FFHKNEKCSA-N 0.000 claims abstract description 90
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 66
- HJVAFZMYQQSPHF-UHFFFAOYSA-N 2-[bis(2-hydroxyethyl)amino]ethanol;boric acid Chemical compound OB(O)O.OCCN(CCO)CCO HJVAFZMYQQSPHF-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000003240 coconut oil Substances 0.000 claims abstract description 49
- 235000019864 coconut oil Nutrition 0.000 claims abstract description 49
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 49
- 229930195729 fatty acid Natural products 0.000 claims abstract description 49
- 239000000194 fatty acid Substances 0.000 claims abstract description 49
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 49
- 239000003921 oil Substances 0.000 claims abstract description 47
- 235000019198 oils Nutrition 0.000 claims abstract description 47
- VYGQUTWHTHXGQB-UHFFFAOYSA-N Retinol hexadecanoate Natural products CCCCCCCCCCCCCCCC(=O)OCC=C(C)C=CC=C(C)C=CC1=C(C)CCCC1(C)C VYGQUTWHTHXGQB-UHFFFAOYSA-N 0.000 claims abstract description 45
- 229940108325 retinyl palmitate Drugs 0.000 claims abstract description 45
- 235000019172 retinyl palmitate Nutrition 0.000 claims abstract description 45
- 239000011769 retinyl palmitate Substances 0.000 claims abstract description 45
- LXCFILQKKLGQFO-UHFFFAOYSA-N methylparaben Chemical compound COC(=O)C1=CC=C(O)C=C1 LXCFILQKKLGQFO-UHFFFAOYSA-N 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000003756 stirring Methods 0.000 claims abstract description 29
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000000341 volatile oil Substances 0.000 claims abstract description 26
- 235000007303 Thymus vulgaris Nutrition 0.000 claims abstract description 23
- 239000008367 deionised water Substances 0.000 claims abstract description 23
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 23
- 239000001585 thymus vulgaris Substances 0.000 claims abstract description 23
- LDVVTQMJQSCDMK-UHFFFAOYSA-N 1,3-dihydroxypropan-2-yl formate Chemical compound OCC(CO)OC=O LDVVTQMJQSCDMK-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000004166 Lanolin Substances 0.000 claims abstract description 21
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 21
- 239000004359 castor oil Substances 0.000 claims abstract description 21
- 235000019438 castor oil Nutrition 0.000 claims abstract description 21
- 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 21
- 235000019388 lanolin Nutrition 0.000 claims abstract description 21
- 229940039717 lanolin Drugs 0.000 claims abstract description 21
- 235000010270 methyl p-hydroxybenzoate Nutrition 0.000 claims abstract description 21
- 239000004292 methyl p-hydroxybenzoate Substances 0.000 claims abstract description 21
- 229960002216 methylparaben Drugs 0.000 claims abstract description 21
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 21
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000008117 stearic acid Substances 0.000 claims abstract description 21
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 8
- 229920002545 silicone oil Polymers 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 241000246358 Thymus Species 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 16
- AMTWCFIAVKBGOD-UHFFFAOYSA-N dioxosilane;methoxy-dimethyl-trimethylsilyloxysilane Chemical compound O=[Si]=O.CO[Si](C)(C)O[Si](C)(C)C AMTWCFIAVKBGOD-UHFFFAOYSA-N 0.000 claims description 13
- 229940083037 simethicone Drugs 0.000 claims description 13
- 239000004519 grease Substances 0.000 claims description 12
- 229940060184 oil ingredients Drugs 0.000 claims description 11
- 239000000243 solution Substances 0.000 claims description 8
- 229960004274 stearic acid Drugs 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 3
- 239000000839 emulsion Substances 0.000 claims description 2
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 9
- 230000003014 reinforcing effect Effects 0.000 abstract description 7
- 240000002657 Thymus vulgaris Species 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 25
- 230000003385 bacteriostatic effect Effects 0.000 description 10
- 239000000047 product Substances 0.000 description 7
- 241000894006 Bacteria Species 0.000 description 6
- 125000003118 aryl group Chemical group 0.000 description 6
- 239000000835 fiber Substances 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 210000003491 skin Anatomy 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000004530 micro-emulsion Substances 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 210000004207 dermis Anatomy 0.000 description 3
- 241000233866 Fungi Species 0.000 description 2
- 239000002280 amphoteric surfactant Substances 0.000 description 2
- 230000008952 bacterial invasion Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001804 emulsifying effect Effects 0.000 description 2
- 210000002615 epidermis Anatomy 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000003205 fragrance Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 210000004400 mucous membrane Anatomy 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- 238000007920 subcutaneous administration Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 229940088594 vitamin Drugs 0.000 description 2
- 229930003231 vitamin Natural products 0.000 description 2
- 235000013343 vitamin Nutrition 0.000 description 2
- 239000011782 vitamin Substances 0.000 description 2
- 150000003722 vitamin derivatives Chemical class 0.000 description 2
- DHKVCYCWBUNNQH-UHFFFAOYSA-N 2-[5-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]-1,3,4-oxadiazol-2-yl]-1-(1,4,5,7-tetrahydropyrazolo[3,4-c]pyridin-6-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1=NN=C(O1)CC(=O)N1CC2=C(CC1)C=NN2 DHKVCYCWBUNNQH-UHFFFAOYSA-N 0.000 description 1
- 241000228197 Aspergillus flavus Species 0.000 description 1
- 229920001661 Chitosan Polymers 0.000 description 1
- 235000005979 Citrus limon Nutrition 0.000 description 1
- 244000131522 Citrus pyriformis Species 0.000 description 1
- 102000008186 Collagen Human genes 0.000 description 1
- 108010035532 Collagen Proteins 0.000 description 1
- 235000016639 Syzygium aromaticum Nutrition 0.000 description 1
- 244000223014 Syzygium aromaticum Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920001436 collagen Polymers 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 235000019197 fats Nutrition 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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
- C14C11/00—Surface finishing of leather
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Cosmetics (AREA)
Abstract
The invention discloses a leather care agent and a preparation method thereof, and belongs to the technical field of preparation of care agents. The leather care agent comprises the following raw materials: methyl paraben, monoglyceride, white oil, stearic acid, lanolin, dimethyl silicone oil, sulfated castor oil, thyme essential oil, nano silver, deionized water, vitamin A palmitate, triethanolamine borate and coconut oil fatty acid diethanolamide; the leather care agent is prepared by the steps of mixing step by step, stirring and the like. According to the invention, the vitamin A palmitate, the triethanolamine borate and the coconut oil fatty acid diethanolamide are adopted as a reinforcing system, so that the antibacterial effect and the color fastness of the leather care agent are improved.
Description
Technical Field
The invention belongs to the technical field of preparation of care agents, and particularly relates to a leather care agent and a preparation method thereof.
Background
With the improvement of living standard of people, more and more genuine leather processing products appear in life, and the care and maintenance of the genuine leather are also necessary. The processed product of dermis, which is a processed product of natural high molecular compound, is rich in collagen and fat, is easy to be rough and abraded on the surface and reduced in smoothness when contacting air for a long time, and needs to be regularly cared. Because the mildew fungus is exposed in the air and contacts with the mildew spores, the mildew fungus is easy to generate and mildew stains appear; and the grease is easy to be oxidized to generate peculiar smell. A large amount of grease is added into the existing leather care products to moisten the surface of the leather and increase the brightness. In order to remove peculiar smell, lemon essential oil, clove essential oil and the like are added into a leather softener, an environment-friendly care agent and a leather preservative to inhibit the smell of grease, so that the leather is endowed with fragrance. However, the existing reported aromatic essential oil has no antibacterial property and cannot inhibit bacteria of leather. The nano silver sol is a metal silver simple substance with the particle size of less than 100nm, and has a spectrum sterilization effect on about 650 bacteria. At present, the molecular assembly type nano silver leather mildew preventive is prepared by taking chitosan and silver nitrate as raw materials, a certain bacteriostatic effect is obtained, but the preparation process is complicated, the time is consumed for 10-20 hours, and the price is expensive. At the same time, the leather itself still has a greasy smell. The leather is soft, and the basic reason is that when the leather is made, grease is introduced into the animal skin to form an oil film which covers the surface of the fibers in the skin completely, namely, the surfaces of the fibers in the skin are separated by an oil film with proper thickness, so that the friction force of the movement between the fibers in the leather is equivalent to the friction force of the oil molecules, and the leather is soft. However, the grease introduced into the leather slowly volatilizes and loses over time in a natural state, or the oil film is damaged due to other reasons, such as hydrolysis when meeting water or high temperature environment, the oil film is damaged, the grease volatilizes and loses, so that the fibers in the leather are mutually bonded, and the leather is hardened and embrittled.
The leather care agent is used for caring leather products such as leather clothing, leather sofas, leather bags, leather chairs, leather shoes and the like, and enables the leather to recover bright and soft as a new product. The existing leather care agents on the market have good effects on softening leather and hand feeling, but have great damage to leather and are easy to discolor the leather.
Chinese patent document 'an aromatic leather care agent and a preparation method and application thereof (No. CN 105734187B)' discloses an aromatic leather care agent and a preparation method thereof, which are composed of the following raw materials in parts by weight: 1.25-4.90 parts of methyl paraben, 0.90-2.08 parts of monoglyceride, 5.30-6.83 parts of white oil, 3.90-4.90 parts of stearic acid, 3.60-6.42 parts of lanolin, 4.90-5.95 parts of simethicone, 5.66-8.88 parts of sulfated castor oil, 4.00-8.00 parts of thyme essential oil, 1.00-5.00 parts of nano silver and 50.27-67.97 parts of deionized water. The aromatic leather care agent prepared by the invention can make the surface of leather smooth and bright, endow fragrance and improve antibacterial property, but has the problems of insufficient color fastness and insufficient antibacterial effect.
Disclosure of Invention
The invention aims to provide a leather care agent and a preparation method thereof, and aims to solve the problems of insufficient color fastness and insufficient antibacterial effect of the leather care agent by optimizing components, dosage, methods and the like on the basis of the leather care agent disclosed in the patent document 'an aromatic leather care agent, a preparation method and application (No. CN 105734187B)'.
In order to solve the technical problems, the invention adopts the following technical scheme:
a leather care agent comprises the following raw materials: methyl paraben, monoglyceride, white oil, stearic acid, lanolin, dimethyl silicone oil, sulfated castor oil, thyme essential oil, nano silver, deionized water, vitamin A palmitate, triethanolamine borate and coconut oil fatty acid diethanolamide;
the weight ratio of the vitamin A palmitate, the triethanolamine borate and the coconut oil fatty acid diethanolamide is (0.50-1.50): (1.26-3.32): (3.24-5.18).
Further, the weight ratio of the vitamin A palmitate to the triethanolamine borate to the coconut oil fatty acid diethanolamide is 1.00:2.29: 4.21.
Further, the leather care agent comprises the following raw materials in parts by weight: 1.25-4.90 parts of methylparaben, 0.90-2.08 parts of monoglyceride, 5.30-6.83 parts of white oil, 3.90-4.90 parts of stearic acid, 3.60-6.42 parts of lanolin, 4.90-5.95 parts of simethicone, 5.66-8.88 parts of sulfated castor oil, 4.00-8.00 parts of thyme essential oil, 1.00-5.00 parts of nano silver, 50.27-67.97 parts of deionized water, 0.50-1.50 parts of vitamin A palmitate, 1.26-3.32 parts of triethanolamine borate and 3.24-5.18 parts of coconut oil fatty acid diethanolamide.
Further, the particle size of the nano silver is 20-50 nm.
The invention also provides a preparation method of the leather care agent, which comprises the following steps:
1) weighing methyl paraben, monoglyceride, white oil, stearic acid, lanolin, simethicone, sulfated castor oil, thyme essential oil, nano-silver, vitamin A palmitate, triethanolamine borate, coconut oil fatty acid diethanolamide and deionized water according to parts by weight;
2) mixing methyl paraben, monoglyceride, white oil, stearic acid, lanolin, dimethyl silicone oil, sulfated castor oil and vitamin A palmitate, heating, and heating to 70-85 deg.C to obtain liquid oil mixture;
3) heating and stirring the triethanolamine borate deionized water solution, adding the liquid oil mixture prepared in the step 2), and continuously stirring;
4) naturally cooling the mixed solution obtained in the step 3) along with the stirring process, and when the temperature is reduced to 25-30 ℃, sequentially and respectively adding the coconut oil fatty acid diethanolamide, the thyme essential oil and the nano silver, and continuously stirring for 40-60min to obtain the leather care agent.
Further, in the step 4, the coconut oil fatty acid diethanolamide, the thyme essential oil and the nano silver are respectively added in sequence at a dropping speed of 3 mL/min.
Further, adding the liquid oil-fat mixture prepared in the step 2) in the step 3, and continuously stirring for 60-120 minutes until the emulsion is not separated after standing.
Further, in the step 3, the temperature of the triethanolamine borate deionized water solution is raised to 70-85 ℃, and the liquid grease mixture prepared in the step 2) is added under the stirring condition that the rotating speed is 400-450 r/min.
The invention has the following beneficial effects:
(1) as can be seen from the data of examples 1-3 and comparative example 5, the leather care agents prepared in examples 1-3 have significantly higher bacteriostatic effect and color fastness than the leather care agent prepared in comparative example 5; meanwhile, as can be seen from the data of examples 1 to 3, example 1 is the most preferred example.
(2) As can be seen from the data of the example 1 and the comparative examples 1 to 4, the vitamin A palmitate, the triethanolamine borate and the coconut oil fatty acid diethanolamide play a synergistic role in preparing the leather care agent, and the antibacterial effect and the color fastness of the leather care agent are synergistically improved; this is:
the vitamin A palmitate is a fat-soluble vitamin, has good intermiscibility with an oil film covering the surface of intradermal fibers, can be absorbed through skin, can be enriched at an oil-water interface by matching with coconut oil fatty acid diethanolamide, and can permeate into a subcutaneous oil layer along with the evaporation of moisture in the using process to increase the thickness of epidermis and dermis so as to enhance the color fastness, and meanwhile, a mucous membrane can be formed on the surface of the oil layer so as to avoid the propagation of bacteria and enhance the bacteriostatic effect; the triethanolamine borate is colorless transparent paste which can be dispersed in water phase, has strong permeability, can be powerfully permeated into various gaps on the surface of leather and forms and stores a layer of lubricating film on the surface, can inhibit corrosion caused by moisture and many other chemical components, thereby improving color fastness, and preventing bacteria from invading and mildewing, the coconut oil fatty acid diethanolamide is used as a non-ionic surfactant, has emulsifying capacity, improves oleophylic hydrophilicity of vitamin A palmitate and triethanolamine borate, and enables the three to form micro-emulsion droplets, thereby improving permeability and rapid film forming capacity, simultaneously, the vitamin A palmitate and the triethanolamine borate are mutually matched to form films on oil and leather simultaneously, thereby forming a multiple film, compared with the film forming of a single substance, the multiple film has no protection dead angle and is improved due to the thickness and toughness, the formed film is firmer and resists bacterial invasion, so that protection can be realized more durably, and all-round protection is formed, and the bacteriostatic effect and the color fastness of the leather care agent are improved.
(3) As can be seen from the data of comparative examples 6-8, the weight ratio of vitamin A palmitate, triethanolamine borate, coconut oil fatty acid diethanolamide was not (0.50-1.50): (1.26-3.32): (3.24-5.18), the bacteriostatic effect and the color fastness of the prepared leather care agent are greatly different from the values of the examples 1-3 and are far lower than the values of the examples 1-3. The invention uses vitamin A palmitate, triethanolamine borate and coconut oil fatty acid diethanolamide as a reinforcing system, and the weight ratio of the vitamin A palmitate, the triethanolamine borate and the coconut oil fatty acid diethanolamide added in the preparation of the leather care agent in examples 1-3 is (0.50-1.50): (1.26-3.32): (3.24-5.18), coconut oil fatty acid diethanolamide is dispersed in an oil phase in a reinforcing system, triethanolamine borate is dispersed in a water phase, and coconut oil fatty acid diethanolamide is used as an amphoteric surfactant to form micro-emulsion droplets, so that a film is quickly formed on the surface layer of oil and a film is formed on a slit on a leather to form full-range quick protection, and the antibacterial effect and the color fastness of the leather care agent are improved by the reinforcing system consisting of vitamin A palmitate, triethanolamine borate and coconut oil fatty acid diethanolamide in the leather care agent.
Detailed Description
In order to facilitate a better understanding of the invention, the following examples are given to illustrate, but not to limit the scope of the invention.
In the embodiment, the leather care agent comprises the following raw materials in parts by weight: 1.25-4.90 parts of methylparaben, 0.90-2.08 parts of monoglyceride, 5.30-6.83 parts of white oil, 3.90-4.90 parts of stearic acid, 3.60-6.42 parts of lanolin, 4.90-5.95 parts of simethicone, 5.66-8.88 parts of sulfated castor oil, 4.00-8.00 parts of thyme essential oil, 1.00-5.00 parts of nano silver, 50.27-67.97 parts of deionized water, 0.50-1.50 parts of vitamin A palmitate, 1.26-3.32 parts of triethanolamine borate and 3.24-5.18 parts of coconut oil fatty acid diethanolamide.
The preparation method of the leather care agent comprises the following steps:
1) weighing methyl paraben, monoglyceride, white oil, stearic acid, lanolin, simethicone, sulfated castor oil, thyme essential oil, nano-silver, vitamin A palmitate, triethanolamine borate, coconut oil fatty acid diethanolamide and deionized water according to parts by weight;
2) mixing methyl paraben, monoglyceride, white oil, stearic acid, lanolin, dimethyl silicone oil, sulfated castor oil and vitamin A palmitate, heating, and heating to 70-85 deg.C to obtain liquid oil mixture;
3) heating the triethanolamine borate deionized water solution to 70-85 ℃, adding the liquid grease mixture prepared in the step 2) under the stirring condition of the rotating speed of 400-450r/min, and continuously stirring;
4) naturally cooling the mixed solution obtained in the step 3) along with the stirring process, and when the temperature is reduced to 25-30 ℃, sequentially and respectively adding the coconut oil fatty acid diethanolamide, the thyme essential oil and the nano silver, and continuously stirring for 40-60min to obtain the leather care agent.
Example 1
The leather care agent comprises the following raw materials in parts by weight: 2.45 parts of methyl paraben, 1.49 parts of monoglyceride, 6.06 parts of white oil, 4.08 parts of stearic acid, 4.15 parts of lanolin, 5.42 parts of simethicone, 7.27 parts of sulfated castor oil, 6.00 parts of thyme essential oil, 3.00 parts of nano-silver, 59.12 parts of deionized water, 1.00 parts of vitamin A palmitate, 2.29 parts of triethanolamine borate and 4.21 parts of coconut oil fatty acid diethanolamide.
The preparation method of the leather care agent comprises the following steps:
1) weighing methyl paraben, monoglyceride, white oil, stearic acid, lanolin, simethicone, sulfated castor oil, thyme essential oil, nano-silver, vitamin A palmitate, triethanolamine borate, coconut oil fatty acid diethanolamide and deionized water according to parts by weight;
2) mixing methyl paraben, monoglyceride, white oil, stearic acid, lanolin, dimethyl silicone oil, sulfated castor oil and vitamin A palmitate, heating, and heating to 70-85 deg.C to obtain liquid oil mixture;
3) heating the triethanolamine borate deionized water solution to 70-85 ℃, adding the liquid grease mixture prepared in the step 2) under the stirring condition of the rotating speed of 400-450r/min, and continuously stirring;
4) naturally cooling the mixed solution obtained in the step 3) along with the stirring process, and when the temperature is reduced to 25-30 ℃, sequentially and respectively adding the coconut oil fatty acid diethanolamide, the thyme essential oil and the nano silver, and continuously stirring for 40-60min to obtain the leather care agent.
Example 2
The leather care agent comprises the following raw materials in parts by weight: 4.90 parts of methyl paraben, 0.90 part of monoglyceride, 6.83 parts of white oil, 3.90 parts of stearic acid, 6.42 parts of lanolin, 4.90 parts of simethicone, 8.88 parts of sulfated castor oil, 4.00 parts of thyme essential oil, 5.00 parts of nano-silver, 50.27 parts of deionized water, 1.50 parts of vitamin A palmitate, 1.26 parts of triethanolamine borate and 5.18 parts of coconut oil fatty acid diethanolamide.
The preparation method of the leather care agent comprises the following steps:
1) weighing methyl paraben, monoglyceride, white oil, stearic acid, lanolin, simethicone, sulfated castor oil, thyme essential oil, nano-silver, vitamin A palmitate, triethanolamine borate, coconut oil fatty acid diethanolamide and deionized water according to parts by weight;
2) mixing methyl paraben, monoglyceride, white oil, stearic acid, lanolin, dimethyl silicone oil, sulfated castor oil and vitamin A palmitate, heating, and heating to 70-85 deg.C to obtain liquid oil mixture;
3) heating the triethanolamine borate deionized water solution to 70-85 ℃, adding the liquid grease mixture prepared in the step 2) under the stirring condition of the rotating speed of 400-450r/min, and continuously stirring;
4) naturally cooling the mixed solution obtained in the step 3) along with the stirring process, and when the temperature is reduced to 25-30 ℃, sequentially and respectively adding the coconut oil fatty acid diethanolamide, the thyme essential oil and the nano silver, and continuously stirring for 40-60min to obtain the leather care agent.
Example 3
The leather care agent comprises the following raw materials in parts by weight: 1.25 parts of methyl paraben, 2.08 parts of monoglyceride, 5.30 parts of white oil, 4.90 parts of stearic acid, 3.60 parts of lanolin, 5.95 parts of simethicone, 5.66 parts of sulfated castor oil, 8.00 parts of thyme essential oil, 1.00 parts of nano-silver, 67.97 parts of deionized water, 0.50 part of vitamin A palmitate, 3.32 parts of triethanolamine borate and 3.24 parts of coconut oil fatty acid diethanolamide.
A preparation method of a leather care agent is characterized by comprising the following steps:
1) weighing methyl paraben, monoglyceride, white oil, stearic acid, lanolin, simethicone, sulfated castor oil, thyme essential oil, nano-silver, vitamin A palmitate, triethanolamine borate, coconut oil fatty acid diethanolamide and deionized water according to parts by weight;
2) mixing methyl paraben, monoglyceride, white oil, stearic acid, lanolin, dimethyl silicone oil, sulfated castor oil and vitamin A palmitate, heating, and heating to 70-85 deg.C to obtain liquid oil mixture;
3) heating the triethanolamine borate deionized water solution to 70-85 ℃, adding the liquid grease mixture prepared in the step 2) under the stirring condition of the rotating speed of 400-450r/min, and continuously stirring;
4) naturally cooling the mixed solution obtained in the step 3) along with the stirring process, and when the temperature is reduced to 25-30 ℃, sequentially and respectively adding the coconut oil fatty acid diethanolamide, the thyme essential oil and the nano silver, and continuously stirring for 40-60min to obtain the leather care agent.
Comparative example 1
The process was essentially the same as in example 1 except that the raw materials used to make the leather care composition lacked vitamin A palmitate, triethanolamine borate, coconut oil fatty acid diethanolamide.
Comparative example 2
The process was essentially the same as that used in example 1 except that the raw materials used to make the leather care composition lacked vitamin A palmitate.
Comparative example 3
Essentially the same procedure as in example 1 except that the triethanolamine borate was absent from the raw materials used to make the leather care agent.
Comparative example 4
The procedure was essentially the same as in example 1 except that coconut oil fatty acid diethanolamide was absent from the raw materials used to make the leather care agent.
Comparative example 5
The leather care agent is prepared by adopting the method of the specific examples 1-5 in Chinese patent document 'an aromatic leather care agent and a preparation method and application thereof (No. CN 105734187B)'.
Comparative example 6
The leather care agent was prepared by the same procedure as in example 1 except that the leather care agent was prepared from 0.10 parts of vitamin A palmitate, 5.32 parts of triethanolamine borate, and 2.24 parts of coconut oil fatty acid diethanolamide.
Comparative example 7
The leather care agent was prepared by the same procedure as in example 1 except that 2.5 parts of vitamin A palmitate, 0.63 part of triethanolamine borate and 6.18 parts of coconut oil fatty acid diethanolamide were used as raw materials.
Comparative example 8
The leather care agent was prepared by the same procedure as in example 1 except that 2.0 parts of vitamin A palmitate, 5.32 parts of triethanolamine borate and 2.24 parts of coconut oil fatty acid diethanolamide were used as raw materials.
The products obtained in examples 1 to 3 and comparative examples 1 to 8 were subjected to the measurement of the diameter of the zone of inhibition in the Aspergillus flavus environment, and the color fastness of the leather was measured using a leather fading tester, and the results are shown in the following table.
| Experimental project | Diameter mm of bacteriostatic zone | Color fastness |
| Example 1 | 20 | 6 |
| Example 2 | 19 | 6 |
| Example 3 | 19 | 6 |
| Comparative example 1 | 6 | 2 |
| Comparative example 2 | 18 | 5 |
| Comparative example 3 | 15 | 5 |
| Comparative example 4 | 17 | 5 |
| Comparative example 5 | 2-5 | 2-3 |
| Comparative example 6 | 12 | 4 |
| Comparative example 7 | 10 | 3 |
| Comparative example 8 | 11 | 4 |
From the above table, it can be seen that: (1) as can be seen from the data of examples 1-3 and comparative example 5, the leather care agents prepared in examples 1-3 have significantly higher bacteriostatic effect and color fastness than the leather care agent prepared in comparative example 5; meanwhile, as can be seen from the data of examples 1 to 3, example 1 is the most preferred example.
(2) As can be seen from the data of the example 1 and the comparative examples 1 to 4, the vitamin A palmitate, the triethanolamine borate and the coconut oil fatty acid diethanolamide play a synergistic role in preparing the leather care agent, and the antibacterial effect and the color fastness of the leather care agent are synergistically improved; this is:
the vitamin A palmitate is a fat-soluble vitamin, has good intermiscibility with an oil film covering the surface of intradermal fibers, can be absorbed through skin, can be enriched at an oil-water interface by matching with coconut oil fatty acid diethanolamide, and can permeate into a subcutaneous oil layer along with the evaporation of moisture in the using process to increase the thickness of epidermis and dermis so as to enhance the color fastness, and meanwhile, a mucous membrane can be formed on the surface of the oil layer so as to avoid the propagation of bacteria and enhance the bacteriostatic effect; the triethanolamine borate is colorless transparent paste which can be dispersed in water phase, has strong permeability, can be powerfully permeated into various gaps on the surface of leather and forms and stores a layer of lubricating film on the surface, can inhibit corrosion caused by moisture and many other chemical components, thereby improving color fastness, and preventing bacteria from invading and mildewing, the coconut oil fatty acid diethanolamide is used as a non-ionic surfactant, has emulsifying capacity, improves oleophylic hydrophilicity of vitamin A palmitate and triethanolamine borate, and enables the three to form micro-emulsion droplets, thereby improving permeability and rapid film forming capacity, simultaneously, the vitamin A palmitate and the triethanolamine borate are mutually matched to form films on oil and leather simultaneously, thereby forming a multiple film, compared with the film forming of a single substance, the multiple film has no protection dead angle and is improved due to the thickness and toughness, the formed film is firmer and resists bacterial invasion, so that protection can be realized more durably, and all-round protection is formed, and the bacteriostatic effect and the color fastness of the leather care agent are improved.
(3) As can be seen from the data of comparative examples 6-8, the weight ratio of vitamin A palmitate, triethanolamine borate, coconut oil fatty acid diethanolamide was not (0.50-1.50): (1.26-3.32): (3.24-5.18), the bacteriostatic effect and the color fastness of the prepared leather care agent are greatly different from the values of the examples 1-3 and are far lower than the values of the examples 1-3. The invention uses vitamin A palmitate, triethanolamine borate and coconut oil fatty acid diethanolamide as a reinforcing system, and the weight ratio of the vitamin A palmitate, the triethanolamine borate and the coconut oil fatty acid diethanolamide added in the preparation of the leather care agent in examples 1-3 is (0.50-1.50): (1.26-3.32): (3.24-5.18), coconut oil fatty acid diethanolamide is dispersed in an oil phase in a reinforcing system, triethanolamine borate is dispersed in a water phase, and coconut oil fatty acid diethanolamide is used as an amphoteric surfactant to form micro-emulsion droplets, so that a film is quickly formed on the surface layer of oil and a film is formed on a slit on a leather to form full-range quick protection, and the antibacterial effect and the color fastness of the leather care agent are improved by the reinforcing system consisting of vitamin A palmitate, triethanolamine borate and coconut oil fatty acid diethanolamide in the leather care agent.
The above description should not be taken as limiting the invention to the embodiments, but rather, as will be apparent to those skilled in the art to which the invention pertains, numerous simplifications or substitutions may be made without departing from the spirit of the invention, which shall be deemed to fall within the scope of the invention as defined by the claims appended hereto.
Claims (6)
1. The leather care agent is characterized by comprising the following raw materials in parts by weight: 1.25-4.90 parts of methylparaben, 0.90-2.08 parts of monoglyceride, 5.30-6.83 parts of white oil, 3.90-4.90 parts of stearic acid, 3.60-6.42 parts of lanolin, 4.90-5.95 parts of simethicone, 5.66-8.88 parts of sulfated castor oil, 4.00-8.00 parts of thyme essential oil, 1.00-5.00 parts of nano silver, 50.27-67.97 parts of deionized water, 0.50-1.50 parts of vitamin A palmitate, 1.26-3.32 parts of triethanolamine borate and 3.24-5.18 parts of coconut oil fatty acid diethanolamide; the particle size of the nano silver is 20-50 nm.
2. The leather care agent as claimed in claim 1, wherein the weight ratio of the vitamin A palmitate, the triethanolamine borate and the coconut oil fatty acid diethanolamide is 1.00:2.29: 4.21.
3. A method for preparing a leather care agent according to any one of claims 1 to 2, comprising the steps of:
1) weighing methyl paraben, monoglyceride, white oil, stearic acid, lanolin, simethicone, sulfated castor oil, thyme essential oil, nano-silver, vitamin A palmitate, triethanolamine borate, coconut oil fatty acid diethanolamide and deionized water according to parts by weight;
2) mixing methyl paraben, monoglyceride, white oil, stearic acid, lanolin, dimethyl silicone oil, sulfated castor oil and vitamin A palmitate, heating, and heating to 70-85 deg.C to obtain liquid oil mixture;
3) heating and stirring the triethanolamine borate deionized water solution, adding the liquid oil mixture prepared in the step 2), and continuously stirring;
4) naturally cooling the mixed solution obtained in the step 3) along with the stirring process, and when the temperature is reduced to 25-30 ℃, sequentially and respectively adding the coconut oil fatty acid diethanolamide, the thyme essential oil and the nano silver, and continuously stirring for 40-60min to obtain the leather care agent.
4. The method for preparing a leather care agent according to claim 3, wherein coconut oil fatty acid diethanolamide, thyme essential oil and nano silver are respectively added in sequence at a dropping speed of 3mL/min in the step 4.
5. The method for preparing a leather conditioner according to claim 3, wherein the liquid oil mixture prepared in step 2) is added in step 3, and stirring is continued for 60-120 minutes until the emulsion does not separate when standing.
6. The method for preparing the leather care agent according to claim 3, wherein the temperature of the triethanolamine borate deionized water solution in step 3 is raised to 70-85 ℃, and the liquid grease mixture prepared in step 2) is added under the stirring condition with the rotation speed of 400-450 r/min.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1633983A (en) * | 2004-11-02 | 2005-07-06 | 黄扶民 | Camellia chrysantha containing skin-care, washing product |
| CN103599021A (en) * | 2013-11-15 | 2014-02-26 | 上海应用技术学院 | Roselle extract as well as preparation method thereof and application thereof in whitening skincare cosmetics |
| CN105734187A (en) * | 2016-02-29 | 2016-07-06 | 上海应用技术学院 | Fragrant leather care agent and preparation method and application thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1633983A (en) * | 2004-11-02 | 2005-07-06 | 黄扶民 | Camellia chrysantha containing skin-care, washing product |
| CN103599021A (en) * | 2013-11-15 | 2014-02-26 | 上海应用技术学院 | Roselle extract as well as preparation method thereof and application thereof in whitening skincare cosmetics |
| CN105734187A (en) * | 2016-02-29 | 2016-07-06 | 上海应用技术学院 | Fragrant leather care agent and preparation method and application thereof |
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Effective date of registration: 20210715 Address after: 410205 Room 307, Building A, Lugu Business Center, 199 Lulong Road, Changsha High-tech Development Zone, Changsha City, Hunan Province Patentee after: Tang Aiguo Address before: Room 307, building a, Lugu business center, No. 199, Lulong Road, high tech Development Zone, Changsha City, Hunan Province, 410205 Patentee before: CHANGSHA XIAOXIN NEW ENERGY TECHNOLOGY Co.,Ltd. |