CN111809005A - Manufacturing method of lasting antibacterial bacteriostatic leather - Google Patents
Manufacturing method of lasting antibacterial bacteriostatic leather Download PDFInfo
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- CN111809005A CN111809005A CN202010634762.2A CN202010634762A CN111809005A CN 111809005 A CN111809005 A CN 111809005A CN 202010634762 A CN202010634762 A CN 202010634762A CN 111809005 A CN111809005 A CN 111809005A
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- leather
- antibacterial
- bacteriostatic
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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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- 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
- C14B1/58—Drying
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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
- C14C1/00—Chemical treatment prior to tanning
- C14C1/04—Soaking
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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
- C14C1/00—Chemical treatment prior to tanning
- C14C1/06—Facilitating unhairing, e.g. by painting, by liming
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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
- C14C1/00—Chemical treatment prior to tanning
- C14C1/08—Deliming; Bating; Pickling; Degreasing
-
- 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
- C14C3/00—Tanning; Compositions for tanning
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The invention relates to the technical field of leather production, in particular to a manufacturing method of lasting antibacterial and bacteriostatic leather, which comprises the steps of soaking animal fur, fleshing, unhairing, deliming, degreasing, washing, pickling and tanning, soaking and washing, retanning, priming, rolling, ironing, polishing and tumbling to obtain rough leather, immersing the rough leather into an activating agent, and immersing the rough leather into a nano-silver solution to obtain antibacterial leather; adding a bacteriostatic agent into the antibacterial leather, and baking to obtain bacteriostatic leather; according to the antibacterial leather, the elastic fibers and the bamboo charcoal fibers are coated on the surface layer of the antibacterial leather from top to bottom, then the graphene powder is uniformly coated on the surface layers of the elastic fibers and the bamboo charcoal fibers, and finally the antibacterial leather is uniformly coated with the waterborne polyurethane resin to obtain a friction-resistant layer leather finished product.
Description
Technical Field
The invention relates to the technical field of leather production, in particular to a manufacturing method of lasting antibacterial bacteriostatic leather.
Background
Leather is a material commonly used in daily life, is used in various aspects such as wearing clothes, hats, furniture manufacturing and the like, and is a main body industry of physics, chemistry, products and the like of unhairing, tanning and the like, and supporting enterprises of leather chemical industry, leather hardware, leather machinery, auxiliary materials and the like. Currently, leather products used in many cases are leather shoes, leather clothes, leather sofas and the like.
With the continuous development of leather technology, the performance of leather is greatly improved, but because fungi are often bred due to sweating and the like in the process of wearing leather products such as leather shoes and the like, users have skin diseases or foot odor, the reason is that warm and humid environments in the leather shoes are suitable for the fungi to be bred, but only one protective layer is coated on the surface of a leather body in the preparation process of the existing leather products, and the protective layer has certain functions of resisting wrinkles, cracking, sterilizing and resisting wear, but due to poor effect, the protective layer cannot effectively protect the leather and the users.
Disclosure of Invention
The invention aims to provide a method for manufacturing lasting antibacterial and bacteriostatic leather with antibacterial and bacteriostatic effects and long service life.
In order to solve the technical problems, the invention adopts the technical scheme that: a manufacturing method of lasting antibacterial bacteriostatic leather comprises the steps of pretreating to obtain rough leather, immersing the rough leather into an activating agent after the pretreatment, and then immersing the rough leather into a nano silver solution to obtain antibacterial leather;
adding a bacteriostatic agent into the antibacterial leather, and baking to obtain bacteriostatic leather;
and coating the antibacterial leather with an antibacterial mildew-proof layer and a friction-resistant layer to obtain a finished leather product.
Further, the coating steps of the antibacterial and mildew-proof layer are as follows: the method comprises the steps of coating elastic fibers and bamboo charcoal fibers on the surface layer of bacteriostatic leather from top to bottom, uniformly coating graphene powder on the surface layers of the elastic fibers and the bamboo charcoal fibers, and finally uniformly coating waterborne polyurethane resin.
Further, the weight ratio of the graphene powder, the elastic fiber, the bamboo charcoal fiber and the waterborne polyurethane resin is 5:5: 6: 10.
further, the nano silver solution is gallic acid modified nano silver solution.
Further, the preparation method of the nano silver solution comprises the following steps:
uniformly mixing water-soluble silver salt and gallic acid in a substance amount ratio of 1:1-1:1.5 in water, slowly adding into ph9-12 water solution, heating to 20-60 deg.C, stirring for 10-60min, adjusting to neutral, and adding butylamine to make the final concentration to 8-15 mM.
Further, the pretreatment comprises the following steps:
the method comprises the following steps: soaking animal fur, fleshing, unhairing, deliming, degreasing, washing, pickling and tanning to obtain rough leather;
step two: tanning, soaking, washing and retanning the rough leather obtained in the step one to obtain soft leather;
step three: and (4) performing primary coating, rolling, ironing midway, ironing and polishing on the soft leather obtained in the step two, and obtaining the rough leather.
Further, the friction-resistant layer is a composite layer of polyester fibers, trinonyl trimellitate and butadiene rubber, and the weight ratio of the polyester fibers to the waterborne polyurethane resin is 5:3:7-4:4: 5.
Further, the bacteriostatic agent is a nano bacteriostatic agent added with camellia oil, and the camellia oil accounts for 5-20% of the mass of the nano bacteriostatic agent.
Further, brushing the antibacterial leather with the bacteriostatic agent, drying in an oven, soaking in absolute ethyl alcohol, heating, soaking, cleaning, and repeatedly drying, soaking and cleaning for 2-3 times.
Compared with the prior art, the invention has the advantages and positive effects that:
1. the manufacturing method of the lasting antibacterial bacteriostatic leather provided by the invention is an improved method based on the traditional manufacturing method, and by adding the silver ion antibacterial layer and the antibacterial mildew-proof layer, the effects of sterilization and antibiosis can be achieved, the leather product is prevented from going moldy and smelly, the service life is prolonged, the industrial development is facilitated, and the requirements of users are met.
2. The manufacturing method of the lasting antibacterial bacteriostatic leather provided by the invention is an improved method based on the traditional manufacturing method, and the friction-resistant layer can play a role in slowing down abrasion and is more suitable for the requirements of users.
3. According to the manufacturing method of the lasting antibacterial and bacteriostatic leather provided by the invention, the bacteriostatic agent is added, so that the antibacterial and bacteriostatic capacity of the leather can be effectively improved, the requirements of various leathers can be met, and the requirements of various aspects are met.
Detailed Description
For a better understanding of the present invention, the present invention is further described below in conjunction with specific embodiments.
Example 1:
a method for manufacturing lasting antibacterial bacteriostatic leather comprises the following steps:
the method comprises the following steps: soaking animal fur, fleshing, unhairing, deliming, degreasing, washing, pickling and tanning to obtain rough leather;
step two: tanning, soaking, washing and retanning the rough leather obtained in the step one to obtain soft leather;
step three: and (4) performing primary coating, rolling, ironing midway, ironing and polishing on the soft leather obtained in the step two, and obtaining the rough leather.
Step four: uniformly mixing a water-soluble silver salt and gallic acid in a substance amount ratio of 1:1 in water, slowly adding the mixture into a ph9 aqueous solution, heating to 20 ℃, stirring for 10min, adjusting the temperature to be neutral, adding butylamine until the final concentration is 8mM to obtain a gallic acid modified nano-silver solution, immersing the rough leather into an activating agent, and immersing the rough leather into the nano-silver solution to obtain antibacterial leather;
adding bacteriostatic agents into the antibacterial leather for baking, adding nano bacteriostatic agents of camellia seed oil, wherein the mass of the camellia seed oil is 5% of that of the nano bacteriostatic agents, brushing the antibacterial leather, placing the antibacterial leather in an oven for drying, soaking the antibacterial leather in absolute ethyl alcohol for heating, soaking and cleaning, and repeatedly drying, soaking and cleaning for 2 times to obtain the antibacterial leather;
coating an antibacterial mildew-proof layer on the antibacterial leather: coating elastic fibers and bamboo charcoal fibers on the surface layer of the bacteriostatic leather from top to bottom, uniformly coating graphene powder on the surface layers of the elastic fibers and the bamboo charcoal fibers, and finally uniformly coating waterborne polyurethane resin; the weight ratio of the graphene powder to the elastic fiber to the bamboo charcoal fiber to the waterborne polyurethane resin is 5:5: 6: 10
And continuously coating a friction-resistant layer, wherein the friction-resistant layer is a composite layer of polyester fiber, trinonyl trimellitate and butadiene rubber, and the weight ratio of the polyester fiber to the waterborne polyurethane resin is 5:3:7, so as to obtain a finished leather product.
Example 2:
the method comprises the following steps:
the method comprises the following steps: soaking animal fur, fleshing, unhairing, deliming, degreasing, washing, pickling and tanning to obtain rough leather;
step two: tanning, soaking, washing and retanning the rough leather obtained in the step one to obtain soft leather;
step three: and (4) performing primary coating, rolling, ironing midway, ironing and polishing on the soft leather obtained in the step two, and obtaining the rough leather.
Step four: uniformly mixing a water-soluble silver salt and gallic acid in a substance amount ratio of 1:1.5 in water, slowly adding the mixture into a ph12 aqueous solution, heating to 60 ℃, stirring for 60min, adjusting the mixture to be neutral, adding butylamine to enable the concentration to be 15mM, preparing a gallic acid modified nano-silver solution, immersing the rough leather into an activating agent, and immersing the rough leather into the nano-silver solution to obtain the antibacterial leather;
adding a bacteriostatic agent into the antibacterial leather for baking, adding a nano bacteriostatic agent of camellia seed oil, wherein the mass of the camellia seed oil is 20% of that of the nano bacteriostatic agent, brushing the antibacterial leather, placing the antibacterial leather in an oven for drying, soaking the antibacterial leather in absolute ethyl alcohol for heating, soaking and cleaning, and repeatedly drying, soaking and cleaning for 3 times to obtain the antibacterial leather;
coating an antibacterial mildew-proof layer on the antibacterial leather: coating elastic fibers and bamboo charcoal fibers on the surface layer of the bacteriostatic leather from top to bottom, uniformly coating graphene powder on the surface layers of the elastic fibers and the bamboo charcoal fibers, and finally uniformly coating waterborne polyurethane resin; the weight ratio of the graphene powder to the elastic fiber to the bamboo charcoal fiber to the waterborne polyurethane resin is 5:5: 6: 10
And continuously coating a friction-resistant layer, wherein the friction-resistant layer is a composite layer of polyester fiber, trinonyl trimellitate and butadiene rubber, and the weight ratio of the polyester fiber to the waterborne polyurethane resin is 4:4:5, so as to obtain a finished leather product.
Example 3:
the method comprises the following steps:
the method comprises the following steps: soaking animal fur, fleshing, unhairing, deliming, degreasing, washing, pickling and tanning to obtain rough leather;
step two: tanning, soaking, washing and retanning the rough leather obtained in the step one to obtain soft leather;
step three: and (4) performing primary coating, rolling, ironing midway, ironing and polishing on the soft leather obtained in the step two, and obtaining the rough leather.
Step four: uniformly mixing a water-soluble silver salt and gallic acid in a substance amount ratio of 1:1.2 in water, slowly adding the mixture into a 10 aqueous solution, heating to 40 ℃, stirring for 10-60min, adjusting the temperature to be neutral, adding butylamine to enable the final concentration to be 11mM, preparing a gallic acid modified nano-silver solution, immersing the rough leather into an activating agent, and immersing the rough leather into the nano-silver solution to obtain antibacterial leather;
adding a bacteriostatic agent into the antibacterial leather for baking, adding a nano bacteriostatic agent of camellia seed oil, wherein the mass of the camellia seed oil is 10% of that of the nano bacteriostatic agent, brushing the antibacterial leather, placing the antibacterial leather in an oven for drying, soaking the antibacterial leather in absolute ethyl alcohol for heating, soaking and cleaning, and repeatedly drying, soaking and cleaning for 2 times to obtain the antibacterial leather;
coating an antibacterial mildew-proof layer on the antibacterial leather: coating elastic fibers and bamboo charcoal fibers on the surface layer of the bacteriostatic leather from top to bottom, uniformly coating graphene powder on the surface layers of the elastic fibers and the bamboo charcoal fibers, and finally uniformly coating waterborne polyurethane resin; the weight ratio of the graphene powder to the elastic fiber to the bamboo charcoal fiber to the waterborne polyurethane resin is 5:5: 6: 10
And continuously coating a friction-resistant layer, wherein the friction-resistant layer is a composite layer of polyester fiber, trinonyl trimellitate and butadiene rubber, and the weight ratio of the polyester fiber to the waterborne polyurethane resin is 4:3:6, so as to obtain a finished leather product.
Example 4:
the method comprises the following steps:
the method comprises the following steps: soaking animal fur, fleshing, unhairing, deliming, degreasing, washing, pickling and tanning to obtain rough leather;
step two: tanning, soaking, washing and retanning the rough leather obtained in the step one to obtain soft leather;
step three: and (4) performing primary coating, rolling, ironing midway, ironing and polishing on the soft leather obtained in the step two, and obtaining the rough leather.
Step four: uniformly mixing a water-soluble silver salt and gallic acid in a substance amount ratio of 1:1.5 in water, slowly adding the mixture into a ph9 aqueous solution, heating to 40 ℃, stirring for 60min, adjusting the temperature to be neutral, adding butylamine to enable the concentration to be 13mM, preparing a gallic acid modified nano-silver solution, immersing the rough leather into an activating agent, and immersing the rough leather into the nano-silver solution to obtain the antibacterial leather;
adding bacteriostatic agents into the antibacterial leather for baking, adding nano bacteriostatic agents of camellia seed oil, wherein the mass of the camellia seed oil is 15% of that of the nano bacteriostatic agents, brushing the antibacterial leather, placing the antibacterial leather in an oven for drying, soaking the antibacterial leather in absolute ethyl alcohol for heating, soaking and cleaning, and repeatedly drying, soaking and cleaning for 3 times to obtain the antibacterial leather;
coating an antibacterial mildew-proof layer on the antibacterial leather: coating elastic fibers and bamboo charcoal fibers on the surface layer of the bacteriostatic leather from top to bottom, uniformly coating graphene powder on the surface layers of the elastic fibers and the bamboo charcoal fibers, and finally uniformly coating waterborne polyurethane resin; the weight ratio of the graphene powder to the elastic fiber to the bamboo charcoal fiber to the waterborne polyurethane resin is 5:5: 6: 10
And continuously coating a friction-resistant layer, wherein the friction-resistant layer is a composite layer of polyester fiber, trinonyl trimellitate and butadiene rubber, and the weight ratio of the polyester fiber to the waterborne polyurethane resin is 4:4:5, so as to obtain a finished leather product.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.
Claims (9)
1. A method for manufacturing lasting antibacterial bacteriostatic leather comprises the steps of pretreatment to obtain rough leather, and is characterized in that: after the pretreatment, immersing the rough leather into an activating agent, and then immersing the rough leather into a nano silver solution to obtain antibacterial leather;
adding a bacteriostatic agent into the antibacterial leather, and baking to obtain bacteriostatic leather;
and coating the antibacterial leather with an antibacterial mildew-proof layer and a friction-resistant layer to obtain a finished leather product.
2. The method for manufacturing the leather with lasting antibacterial and bacteriostatic effects as claimed in claim 1, wherein the method comprises the following steps: the coating steps of the antibacterial mildew-resistant layer are as follows: the method comprises the steps of coating elastic fibers and bamboo charcoal fibers on the surface layer of bacteriostatic leather from top to bottom, uniformly coating graphene powder on the surface layers of the elastic fibers and the bamboo charcoal fibers, and finally uniformly coating waterborne polyurethane resin.
3. The method for manufacturing the leather with lasting antibacterial and bacteriostatic effects as claimed in claim 2, wherein the method comprises the following steps: the weight ratio of the graphene powder to the elastic fiber to the bamboo charcoal fiber to the waterborne polyurethane resin is 5:5: 6: 10.
4. the method for manufacturing the leather with lasting antibacterial and bacteriostatic effects as claimed in claim 1, wherein the method comprises the following steps: the nano silver solution is gallic acid modified nano silver solution.
5. The method for manufacturing the leather with lasting antibacterial and bacteriostatic effects as claimed in claim 4, wherein the method comprises the following steps: the preparation method of the nano silver solution comprises the following steps:
uniformly mixing water-soluble silver salt and gallic acid in a substance amount ratio of 1:1-1:1.5 in water, slowly adding into ph9-12 water solution, heating to 20-60 deg.C, stirring for 10-60min, adjusting to neutral, and adding butylamine to make the final concentration to 8-15 mM.
6. The method for manufacturing the leather with lasting antibacterial and bacteriostatic effects as claimed in claim 1, wherein the method comprises the following steps: the pretreatment comprises the following steps:
the method comprises the following steps: soaking animal fur, fleshing, unhairing, deliming, degreasing, washing, pickling and tanning to obtain rough leather;
step two: tanning, soaking, washing and retanning the rough leather obtained in the step one to obtain soft leather;
step three: and (4) performing primary coating, rolling, ironing midway, ironing and polishing on the soft leather obtained in the step two, and obtaining the rough leather.
7. The method for manufacturing the leather with lasting antibacterial and bacteriostatic effects as claimed in claim 1, wherein the method comprises the following steps: the friction-resistant layer is a composite layer of polyester fibers, trinonyl trimellitate and butadiene rubber, and the weight ratio of the polyester fibers to the waterborne polyurethane resin is 5:3:7-4:4: 5.
8. The method for manufacturing the leather with lasting antibacterial and bacteriostatic effects as claimed in claim 1, wherein the method comprises the following steps: the bacteriostatic agent is a nano bacteriostatic agent added with camellia seed oil, and the camellia seed oil accounts for 5-20% of the mass of the nano bacteriostatic agent.
9. The method for manufacturing the leather with lasting antibacterial and bacteriostatic effects as claimed in claim 1, wherein the method comprises the following steps: brushing antibacterial leather with the antibacterial agent, drying in an oven, soaking in anhydrous ethanol, heating, soaking, cleaning, and repeatedly drying, soaking and cleaning for 2-3 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010634762.2A CN111809005A (en) | 2020-07-02 | 2020-07-02 | Manufacturing method of lasting antibacterial bacteriostatic leather |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010634762.2A CN111809005A (en) | 2020-07-02 | 2020-07-02 | Manufacturing method of lasting antibacterial bacteriostatic leather |
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| CN111809005A true CN111809005A (en) | 2020-10-23 |
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| CN202010634762.2A Pending CN111809005A (en) | 2020-07-02 | 2020-07-02 | Manufacturing method of lasting antibacterial bacteriostatic leather |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115584636A (en) * | 2022-10-09 | 2023-01-10 | 吉安市三菱超细纤维有限公司 | Fiber leather and preparation process thereof |
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| CN106362927A (en) * | 2016-08-30 | 2017-02-01 | 晋江市永建皮革制品有限公司 | Flexing endurance antibacterial leather and preparation method thereof |
| CN107354251A (en) * | 2017-08-22 | 2017-11-17 | 四川大学 | A kind of long acting antibiotic leather and preparation method thereof |
| CN107988446A (en) * | 2017-12-04 | 2018-05-04 | 安徽精致汽车饰件有限公司 | A kind of processing method of acidproof antibacterial leather |
| CN109022636A (en) * | 2018-09-10 | 2018-12-18 | 浩源皮业（台山）有限公司 | A kind of antibacterial leather and its preparation process |
-
2020
- 2020-07-02 CN CN202010634762.2A patent/CN111809005A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104911727A (en) * | 2015-05-29 | 2015-09-16 | 安徽省含山县顺天纺织有限公司 | Antibacterial blended regenerated cotton yarn and preparation method thereof |
| CN106362927A (en) * | 2016-08-30 | 2017-02-01 | 晋江市永建皮革制品有限公司 | Flexing endurance antibacterial leather and preparation method thereof |
| CN107354251A (en) * | 2017-08-22 | 2017-11-17 | 四川大学 | A kind of long acting antibiotic leather and preparation method thereof |
| CN107988446A (en) * | 2017-12-04 | 2018-05-04 | 安徽精致汽车饰件有限公司 | A kind of processing method of acidproof antibacterial leather |
| CN109022636A (en) * | 2018-09-10 | 2018-12-18 | 浩源皮业（台山）有限公司 | A kind of antibacterial leather and its preparation process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115584636A (en) * | 2022-10-09 | 2023-01-10 | 吉安市三菱超细纤维有限公司 | Fiber leather and preparation process thereof |
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Application publication date: 20201023 |