阅读说明：本技术 一种持久抗菌抑菌型皮革的制造方法 (Manufacturing method of lasting antibacterial bacteriostatic leather ) 是由 郭邵杰 于 2020-07-02 设计创作，主要内容包括：本发明涉及皮革生产技术领域,具体涉及一种持久抗菌抑菌型皮革的制造方法,将动物毛皮进行浸水、去肉、脱毛、脱灰、脱脂、水洗、浸酸和鞣制、浸泡水洗、复鞣,底涂、滚烫、中途、烫光、摔鼓处理后得到粗皮革,将所述粗皮革浸入活化剂中,再将其浸入纳米银溶液中,得到抗菌皮革；将所述抗菌皮革加入抑菌剂进行烘制,得到抑菌皮革；将所述抑菌皮革将弹性纤维和竹炭纤维由上而下的涂覆至抑菌皮革表层,再将石墨烯粉末均匀涂覆至弹性纤维和竹炭纤维的表层,最后均匀涂覆水性聚氨酯树脂得到,和耐摩擦层皮革成品,本发明具有一定的抗皱、抗裂、杀菌、抑菌、防臭、耐磨的作用,有效解决皮革制品真菌滋生发霉发臭的现象。(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.)

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.

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.