CN109055633B - Preparation method of leather fabric finishing agent - Google Patents
Preparation method of leather fabric finishing agent Download PDFInfo
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- CN109055633B CN109055633B CN201811104060.2A CN201811104060A CN109055633B CN 109055633 B CN109055633 B CN 109055633B CN 201811104060 A CN201811104060 A CN 201811104060A CN 109055633 B CN109055633 B CN 109055633B
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- 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
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Abstract
The invention relates to a preparation method of a leather fabric finishing agent, and belongs to the technical field of finishing agents. The cactus is a cheap and easily-obtained plant and has an antibacterial and bacteriostatic effect, and the antibacterial components in the cactus are extracted from the cactus to perform antibacterial and bactericidal action on the leather; the mugwort essential oil is extracted from the mugwort, has good antibacterial effect but is easy to volatilize, the mugwort essential oil is wrapped by the microcapsules, the surface of the leather is sterilized and finished, and then the antibacterial liquid and the antibacterial microcapsules are permeated into the surface layer of the leather by the surfactant and the penetrant, so that the antibacterial liquid and the antibacterial microcapsules can be slowly released under the surface layer of the leather, and the antibacterial effect is greatly prolonged; the two antibacterial substances are extracted from natural plants, have good affinity to human skin, and are added with green tea leaves, so that the smell is improved, and the leather fabric has light green tea fragrance after being finished.
Description
Technical Field
The invention relates to a preparation method of a leather fabric finishing agent, and belongs to the technical field of finishing agents.
Background
The 'real leather' is a common word in the leather product market and is a custom name for natural leather for distinguishing synthetic leather. In the consumer's opinion, "dermis" also has a non-false meaning. Animal leather is a natural leather, which is the genuine leather that I often say. It is made up by using animal (raw hide) through the tanning process of leather factory to make leather material with various characteristics, strength, hand feeling, colour and pattern, and is a necessary material for modern leather product. The natural leather product also has a particular psychological value for the user, namely, being sparkling and soothing, which is the same as the feeling in the mind of rings made of copper and gold. With the improvement of the quality of life, the demand of people for leather is only increased and cannot trend to decline, so that the leather industry is not a daily industry at all. Along with the improvement of living standard, the requirements of people on living quality are higher and higher, especially living goods closely related to life, especially the formation of concepts of safety, comfort, health, cleanness and the like, so that the post-finishing processing of the living goods such as antibiosis, mildew prevention, deodorization and the like is more emphasized by people. Leatherware such as leather clothing, leather bags, leather chairs and the like contain natural protein and grease, and sweat, metabolic products, sebum and other excrement secreted by sweat glands and sebaceous glands of human bodies at ordinary times are added, so that a nutrient source of microorganisms is formed, and the breeding and propagation of the microorganisms are easily caused when the microorganisms are not managed properly. Particularly, under the conditions of moisture, nutrition and proper temperature, microorganisms rapidly reproduce, and bacterial plaques are generated on the fabrics, so that the leatherware is mildewed, embrittled and even deteriorated, and the human body is uncomfortable or has adverse effects on the human body during the wearing or application process. In addition, bacteria also decompose human secretion to generate odor substances such as ammonia, thereby generating dirty body odor, causing the spread or infection of skin diseases and affecting the health of human body.
In the prior art, the following antibacterial agents are commonly adopted for the mildew-proof treatment of the leather fabric: fatty alcohol-polyoxyethylene ether, N-phenyl-2-naphthylamine, cocamidopropyl betaine and the like. The antibacterial agent can reduce fungus on the surface of dermis and prevent mildew, but has poor washing fastness, short antibacterial time, skin irritation, and unpleasant taste.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: aiming at the problems of short antibacterial time, skin irritation and bad taste of the existing antibacterial finishing agent, the preparation method of the leather fabric finishing agent is provided.
In order to solve the technical problems, the invention adopts the technical scheme that:
(1) taking fresh cactus, removing surface spines to obtain thornless cactus, taking the thornless cactus, the fresh mugwort and the fresh green tea, cutting up, and soaking in deionized water to obtain a mixture;
(2) opening the condensing device, heating the mixture to 100 deg.C, steaming for 1 hr while receiving the condensed reflux liquid,
extracting the condensed reflux liquid with petroleum ether to obtain an extract liquid, putting the extract liquid into a rotary evaporator, and taking out after 1h to obtain an extract liquid;
(3) filtering the mixture, removing filter residue, continuously cooking and concentrating to obtain antibacterial liquid;
(4) mixing the extractive solution, tween 80 and span 80, heating to 40 deg.C, and stirring for 30min to obtain reaction solution A;
(5) mixing and stirring the reaction solution A, 20ml/L gelatin and 20ml/L acacia gum solution, adjusting the pH to 4 by using 0.01mol/L hydrochloric acid solution, and standing for 20min to obtain a reaction solution B;
(6) mixing the reaction liquid B and glutaraldehyde under the condition of ice-water bath, adjusting the pH to 10 by using 0.1mol/L sodium hydroxide solution, standing for 20min for reaction, performing centrifugal filtration, and drying filter residues to obtain antibacterial microcapsules;
(7) mixing sodium polymetaphosphate, sodium dodecyl sulfate, triethanolamine, dodecyl trimethyl ammonium chloride, anhydrous ethanol and deionized water, stirring, and heating at 60 deg.C for 1 hr to obtain a mixed solution;
(8) and mixing and stirring the antibacterial liquid, the antibacterial microcapsules and the mixed liquid to obtain the leather fabric finishing agent.
The mass ratio of the non-thorn cactus, the fresh mugwort, the fresh green tea and the deionized water in the step (1) is 2:4:1: 20.
And (3) the rotating speed of the rotary evaporator in the step (2) is 100 r/min.
And (4) continuously cooking and concentrating for 30min in the step (3).
And (4) the mass ratio of the extracting solution, the Tween 80 and the span 80 is 10:1: 1.
And (5) the mass ratio of the reaction liquid A, the 20ml/L gelatin solution and the 20ml/L Arabic gum solution is 1:5: 5.
And (4) the mass ratio of the reaction liquid B in the step (6) to the glutaraldehyde is 2: 1.
And (4) the mass ratio of the sodium polymetaphosphate, the sodium dodecyl sulfate, the triethanolamine, the dodecyl trimethyl ammonium chloride, the anhydrous ethanol and the deionized water in the step (7) is 9:1:5:3:2: 80.
And (5) the mass ratio of the antibacterial liquid to the antibacterial microcapsules to the mixed liquid in the step (8) is 5:2: 80.
Compared with other methods, the method has the beneficial technical effects that:
(1) the cactus is a cheap and easily-obtained plant, has an antibacterial and bacteriostatic effect, and can extract cactus liquid from the cactus liquid to perform antibacterial and bactericidal effects on leather; the mugwort essential oil can be extracted from the mugwort, has good antibacterial effect but is easy to volatilize, the mugwort essential oil is wrapped by the microcapsules, the surface of the leather is subjected to sterilization finishing, and then the antibacterial liquid and the antibacterial microcapsules are permeated into the surface layer of the leather by the surfactant and the penetrant, so that the antibacterial liquid and the antibacterial microcapsules can be slowly released under the surface layer of the leather, and the antibacterial effect is greatly prolonged; the two antibacterial substances are extracted from natural plants, have good affinity to human skin, and are added with green tea leaves, so that the smell is improved, and the leather fabric has light green tea fragrance after being finished;
(2) the leather fabric finishing agent prepared by the invention extracts antibacterial and bacteriostatic components in natural plants, is compatible with skin and free of stimulation, is slowly released by matching with a microcapsule technology, can greatly prolong the effective bacteriostatic time of the leather fabric finished by the finishing agent, and simultaneously, green tea leaves are added, so that the finished leather can have a light green tea fragrance.
Detailed Description
Taking 100-200 g of fresh cactus, removing surface spines to obtain thornless cactus, taking 50-100 g of thornless cactus, 100-200 g of fresh mugwort and 25-50 g of fresh green tea, cutting, and soaking in 500-1000 g of deionized water to obtain a mixture; opening a condensing device, heating the mixture to 100 ℃, and cooking for 1h while receiving condensed reflux liquid; extracting the condensed reflux liquid by using 20-40 g of petroleum ether to obtain an extract liquid, putting the extract liquid into a rotary evaporator, adjusting the rotating speed to be 100r/min, and taking out after 1 hour to obtain an extract liquid; filtering the mixture, removing the filter residue, and continuously steaming for 30min to obtain antibacterial solution; mixing 10-20 g of the extracting solution, 1-2 g of tween 80 and 1-2 g of span 80, heating to 40 ℃, and stirring for 30min to obtain a reaction solution A; mixing and stirring 10-20 g of reaction liquid A, 50-100 g of 20ml/L gelatin and 50-100 g of 20ml/L acacia solution, adjusting the pH value to 4 by using 0.01mol/L hydrochloric acid solution, and standing for 20min to obtain reaction liquid B; mixing 100-200 g of the reaction liquid B and 50-100 g of glutaraldehyde in an ice water bath, adjusting the pH to 10 by using 0.1mol/L sodium hydroxide solution, standing for 20min for reaction, performing centrifugal filtration, and drying filter residues to obtain antibacterial microcapsules; stirring and mixing 9-18 g of sodium polymetaphosphate, 1-2 g of sodium dodecyl sulfate, 5-10 g of triethanolamine, 3-6 g of dodecyltrimethylammonium chloride, 2-4 g of absolute ethyl alcohol and 80-160 g of deionized water, and heating for 1h at 60 ℃ to obtain a mixed solution; and mixing and stirring 5-10 g of antibacterial liquid, 2-4 g of antibacterial microcapsules and 80-160 g of mixed solution to obtain the leather fabric finishing agent.
Taking 100g of fresh cactus, removing surface spines to obtain the non-thorn cactus, taking 50g of the non-thorn cactus, 100g of the fresh mugwort and 25g of the fresh green tea, cutting up, and soaking in 500g of deionized water to obtain a mixture; opening a condensing device, heating the mixture to 100 ℃, and cooking for 1h while receiving condensed reflux liquid; extracting the condensed reflux liquid by using 20g of petroleum ether to obtain extract liquor, putting the extract liquor into a rotary evaporator, adjusting the rotating speed to be 100r/min, and taking out after 1h to obtain extract liquor; filtering the mixture, removing the filter residue, and continuously steaming for 30min to obtain antibacterial solution; mixing 10g of the extract, 1g of tween 80 and 1g of span 80, heating to 40 ℃, and stirring for 30min to obtain a reaction solution A; mixing and stirring 10g of reaction liquid A, 50g of 20ml/L gelatin and 50g of 20ml/L acacia solution, adjusting the pH value to 4 by using 0.01mol/L hydrochloric acid solution, and standing for 20min to obtain reaction liquid B; mixing 100g of reaction liquid B and 50g of glutaraldehyde in an ice-water bath, adjusting the pH to 10 by using 0.1mol/L sodium hydroxide solution, standing for 20min for reaction, performing centrifugal filtration, and drying filter residues to obtain antibacterial microcapsules; stirring and mixing 9g of sodium polymetaphosphate, 1g of sodium dodecyl sulfate, 5g of triethanolamine, 3g of dodecyl trimethyl ammonium chloride, 2g of absolute ethyl alcohol and 80g of deionized water, and heating for 1h at the temperature of 60 ℃ to obtain a mixed solution; and mixing and stirring 5g of antibacterial liquid, 2g of antibacterial microcapsules and 80g of mixed solution to obtain the leather fabric finishing agent.
Taking 150g of fresh cactus, removing surface spines to obtain the non-thorn cactus, taking 75g of the non-thorn cactus, 150g of the fresh mugwort and 40g of the fresh green tea, cutting up the cactus, and soaking the cactus in 750g of deionized water to obtain a mixture; opening a condensing device, heating the mixture to 100 ℃, and cooking for 1h while receiving condensed reflux liquid; extracting the condensed reflux liquid by using 30g of petroleum ether to obtain extract liquor, putting the extract liquor into a rotary evaporator, adjusting the rotating speed to be 100r/min, and taking out after 1h to obtain extract liquor; filtering the mixture, removing the filter residue, and continuously steaming for 30min to obtain antibacterial solution; mixing 15g of the extractive solution, 1.5g of Tween 80 and 1.5g of span 80, heating to 40 ℃, and stirring for 30min to obtain a reaction solution A; taking 15g of reaction liquid A, 75g of 20ml/L gelatin and 75g of 20ml/L acacia solution, mixing and stirring, adjusting the pH value to 4 by using 0.01mol/L hydrochloric acid solution, and standing for 20min to obtain reaction liquid B; mixing 150g of reaction liquid B and 75g of glutaraldehyde in an ice-water bath, adjusting the pH to 10 by using 0.1mol/L sodium hydroxide solution, standing for 20min for reaction, performing centrifugal filtration, and drying filter residues to obtain antibacterial microcapsules; taking 14g of sodium polymetaphosphate, 1.5g of sodium dodecyl sulfate, 7g of triethanolamine, 5g of dodecyl trimethyl ammonium chloride, 3g of absolute ethyl alcohol and 120g of deionized water, stirring and mixing, and heating for 1h at the temperature of 60 ℃ to obtain a mixed solution; and mixing and stirring 7g of antibacterial liquid, 3g of antibacterial microcapsules and 120g of mixed solution to obtain the leather fabric finishing agent.
Taking 200g of fresh cactus, removing surface spines to obtain thornless cactus, taking 100g of thornless cactus, 200g of fresh mugwort and 50g of fresh green tea, cutting up, and soaking in 1000g of deionized water to obtain a mixture; opening a condensing device, heating the mixture to 100 ℃, and cooking for 1h while receiving condensed reflux liquid; extracting the condensed reflux liquid by using 40g of petroleum ether to obtain extract liquor, putting the extract liquor into a rotary evaporator, adjusting the rotating speed to be 100r/min, and taking out after 1h to obtain extract liquor; filtering the mixture, removing the filter residue, and continuously steaming for 30min to obtain antibacterial solution; mixing 20g of the extract, 2g of tween 80 and 2g of span 80, heating to 40 ℃, and stirring for 30min to obtain a reaction solution A; mixing and stirring 20g of reaction liquid A, 100g of 20ml/L gelatin and 100g of 20ml/L acacia solution, adjusting the pH value to 4 by using 0.01mol/L hydrochloric acid solution, and standing for 20min to obtain reaction liquid B; mixing 200g of reaction liquid B and 100g of glutaraldehyde in an ice-water bath, adjusting the pH to 10 by using 0.1mol/L sodium hydroxide solution, standing for 20min for reaction, performing centrifugal filtration, and drying filter residues to obtain antibacterial microcapsules; taking 18g of sodium polymetaphosphate, 2g of sodium dodecyl sulfate, 10g of triethanolamine, 6g of dodecyl trimethyl ammonium chloride, 4g of absolute ethyl alcohol and 160g of deionized water, stirring and mixing, and heating for 1h at the temperature of 60 ℃ to obtain a mixed solution; and mixing and stirring 10g of antibacterial liquid, 4g of antibacterial microcapsules and 160g of mixed solution to obtain the leather fabric finishing agent.
The leather fabric finishing agent and the leather fabric finishing agent prepared by the invention are detected, and the specific detection results are shown in the following table 1:
the detection method comprises the following steps:
and testing the antibacterial performance of the integral leather fabric by using a GB/T20944.3-2007 oscillation method. To be received
The test bacteria include Escherichia coli and Staphylococcus aureus.
Table 1 characterization of the finishing agent properties of the leather fabrics
| Performance characterization | Example 1 | Example 2 | Example 3 | Comparative example |
| 24h Escherichia coli antibacterial ratio (%) | 99.92 | 99.95 | 99.93 | 98.71 |
| Antibacterial rate of 24h of golden yellow glucose | 99.99 | 99.99 | 99.98 | 99.62 |
| Antibacterial rate of Escherichia coli after 50 times of washing（%） | 90.45 | 90.44 | 90.52 | 83.26 |
| Antibacterial ratio (%) of glucose in golden color after washing 50 times | 97.52 | 97.55 | 98.11 | 87.92 |
As can be seen from Table 1, the leather fabric finishing agent prepared by the invention has good antibacterial and bacteriostatic capabilities, long antibacterial duration and scrubbing resistance, and has extremely wide market application value.
Claims (1)
1. A preparation method of a leather fabric finishing agent is characterized by comprising the following specific preparation steps:
(1) taking fresh cactus, removing surface spines to obtain thornless cactus, taking the thornless cactus, the fresh mugwort and the fresh green tea, cutting up, and soaking in deionized water to obtain a mixture; the mass ratio of the thornless cactus to the fresh mugwort to the fresh green tea to the deionized water is 2:4:1: 20;
(2) opening the condensing device, heating the mixture to 100 deg.C, steaming for 1 hr while receiving the condensed reflux liquid,
extracting the condensed reflux liquid with petroleum ether to obtain an extract liquid, putting the extract liquid into a rotary evaporator, and taking out after 1h to obtain an extract liquid; the rotating speed of the rotary evaporator is 100 r/min;
(3) filtering the mixture, removing filter residue, continuously cooking and concentrating to obtain antibacterial liquid; the time for continuing to cook and concentrate is 30 min;
(4) mixing the extractive solution, tween 80 and span 80, heating to 40 deg.C, and stirring for 30min to obtain reaction solution A; the mass ratio of the extracting solution, the Tween 80 and the span 80 is 10:1: 1;
(5) mixing and stirring the reaction solution A, 20ml/L gelatin and 20ml/L acacia gum solution, adjusting the pH to 4 by using 0.01mol/L hydrochloric acid solution, and standing for 20min to obtain a reaction solution B; the mass ratio of the reaction liquid A to the gelatin solution of 20ml/L to the acacia gum solution of 20ml/L is 1:5: 5;
(6) mixing the reaction liquid B and glutaraldehyde under the condition of ice-water bath, adjusting the pH to 10 by using 0.1mol/L sodium hydroxide solution, standing for 20min for reaction, performing centrifugal filtration, and drying filter residues to obtain antibacterial microcapsules; the mass ratio of the reaction liquid B to the glutaraldehyde is 2: 1;
(7) mixing sodium polymetaphosphate, sodium dodecyl sulfate, triethanolamine, dodecyl trimethyl ammonium chloride, anhydrous ethanol and deionized water, stirring, and heating at 60 deg.C for 1 hr to obtain a mixed solution; the mass ratio of the sodium polymetaphosphate to the sodium dodecyl sulfate to the triethanolamine to the dodecyltrimethylammonium chloride to the anhydrous ethanol to the deionized water is 9:1:5:3:2: 80;
(8) mixing and stirring the antibacterial liquid, the antibacterial microcapsules and the mixed liquid to obtain a leather fabric finishing agent; the mass ratio of the antibacterial liquid to the antibacterial microcapsule to the mixed liquid is 5:2: 80.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111218532A (en) * | 2019-11-13 | 2020-06-02 | 孟令霄 | Leather protective agent |
| CN112046364A (en) * | 2020-09-09 | 2020-12-08 | 浙江吉利控股集团有限公司 | Vehicle seat and vehicle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061625A (en) * | 2009-11-16 | 2011-05-18 | 香港理工大学 | Mugwort leaf oil microcapsule antibacterial crease-resistant fabric and preparation method thereof |
| CN104532595A (en) * | 2014-12-15 | 2015-04-22 | 西安工程大学 | Mosquito-preventing and fly-repelling capsule finishing agent as well as preparation method and application thereof |
| CN107385907A (en) * | 2017-07-21 | 2017-11-24 | 安徽华锦柏亚纤纺科技有限公司 | A kind of compounding finishing agent for being used to improve dacron fabric antistatic behaviour |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061625A (en) * | 2009-11-16 | 2011-05-18 | 香港理工大学 | Mugwort leaf oil microcapsule antibacterial crease-resistant fabric and preparation method thereof |
| CN104532595A (en) * | 2014-12-15 | 2015-04-22 | 西安工程大学 | Mosquito-preventing and fly-repelling capsule finishing agent as well as preparation method and application thereof |
| CN107385907A (en) * | 2017-07-21 | 2017-11-24 | 安徽华锦柏亚纤纺科技有限公司 | A kind of compounding finishing agent for being used to improve dacron fabric antistatic behaviour |
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