阅读说明：本技术 一种绿色皮革鞣剂的制备方法 (Preparation method of green leather tanning agent ) 是由 陈治军 邵文 魏崇远 于 2019-09-25 设计创作，主要内容包括：本发明涉及皮革加工试剂技术领域,尤其是一种绿色皮革鞣剂,所述绿色皮革鞣剂的质量份组成如下：天然的半干性油20-30份、单宁10-18份、戊二醛接枝改性淀粉10-16份、双酚A2-8份、六偏磷酸钠2-6份、硅酸盐1.2-3.6份、改性氧化石墨烯10-20份、氨基纤维素1.3-3.2份；所述制备方法如下：将天然的半干性油、单宁、戊二醛接枝改性淀粉、双酚A、六偏磷酸钠、硅酸盐、改性氧化石墨烯、氨基纤维素和水混合,室温搅拌均匀,得到所述绿色皮革鞣剂；本发明种的绿色皮革鞣剂的制备方法,生产工艺简单,成本低,生产工艺环保,降低了环氧皮革鞣剂的储存成本,同时本发明中的绿色皮革鞣剂,生产的皮革质地柔软丰满,添加量少,从而可以有效降低皮革的生产工艺。(The invention relates to the technical field of leather processing reagents, in particular to a green leather tanning agent which comprises the following components in parts by mass: 20-30 parts of natural semi-dry oil, 10-18 parts of tannin, 10-16 parts of glutaraldehyde graft modified starch, 2-8 parts of bisphenol A, 2-6 parts of sodium hexametaphosphate, 1.2-3.6 parts of silicate, 10-20 parts of modified graphene oxide and 1.3-3.2 parts of amino cellulose; the preparation method comprises the following steps: mixing natural semi-dry oil, tannin, glutaraldehyde graft modified starch, bisphenol A, sodium hexametaphosphate, silicate, modified graphene oxide, amino cellulose and water, and stirring uniformly at room temperature to obtain the green leather tanning agent; the preparation method of the green leather tanning agent has the advantages of simple production process, low cost and environment-friendly production process, reduces the storage cost of the epoxy leather tanning agent, and simultaneously, the produced leather is soft and full in texture and small in addition amount, so that the production process of the leather can be effectively reduced.)

1. A preparation method of a green leather tanning agent is characterized by comprising the following steps: the green leather tanning agent comprises the following components in parts by mass: 20-30 parts of natural semi-dry oil, 10-18 parts of tannin, 10-16 parts of glutaraldehyde graft modified starch, 2-8 parts of bisphenol A, 2-6 parts of sodium hexametaphosphate, 1.2-3.6 parts of silicate, 10-20 parts of modified graphene oxide and 1.3-3.2 parts of amino cellulose.

2. The method for preparing a green leather tanning agent according to claim 1, characterized in that: the natural semi-dry oil is selected from whale liver oil.

3. The method for preparing a green leather tanning agent according to claim 1, characterized in that: the tannin is extracted from bark, wood, leaf, fruit and rhizome.

4. A method for preparing a green leather tanning agent according to claim 3, characterized in that: the tannin is obtained by extracting with water, concentrating, and spray drying to obtain powder.

5. The method for preparing a green leather tanning agent according to claim 1, characterized in that: the green leather tanning agent comprises the following components in parts by mass: 21-28 parts of natural semi-dry oil, 12-16 parts of tannin, 12-15 parts of glutaraldehyde graft modified starch, 3-6 parts of bisphenol A, 3-5 parts of sodium hexametaphosphate, 1.5-3.2 parts of silicate, 12-18 parts of modified graphene oxide and 1.5-3 parts of amino cellulose.

6. The method for preparing a green leather tanning agent according to claim 1, characterized in that: the green leather tanning agent comprises the following components in parts by mass: 25 parts of natural semi-dry oil, 15 parts of tannin, 13 parts of glutaraldehyde graft modified starch, 4 parts of bisphenol A, 4 parts of sodium hexametaphosphate, 2.4 parts of silicate, 15 parts of modified graphene oxide and 2 parts of amino cellulose.

7. The method for preparing a green leather tanning agent according to claim 1, characterized in that: the green leather tanning agent comprises the following components in parts by mass: 24 parts of natural semi-dry oil, 14 parts of tannin, 14 parts of glutaraldehyde graft modified starch, 5 parts of bisphenol A, 3.2 parts of sodium hexametaphosphate, 3 parts of silicate, 16 parts of modified graphene oxide and 2.5 parts of amino cellulose.

8. The method for preparing a green leather tanning agent according to claim 1, characterized in that: the preparation method comprises the following steps: mixing natural semi-dry oil, tannin, glutaraldehyde graft modified starch, bisphenol A, sodium hexametaphosphate, silicate, modified graphene oxide, amino cellulose and water, and stirring uniformly at room temperature to obtain the green leather tanning agent.

Technical Field

The invention relates to the technical field of leather processing reagents, in particular to a preparation method of a green leather tanning agent.

Background

The tanning agent is an active substance with multiple functional groups, and the molecular structure of the active substance at least contains two or more functional groups. The tanning agent can form intramolecular bonds with two or more action points in a collagen structure, can destroy a part of intramolecular bonds in the collagen and generate more new intermolecular crosslinks, and has a tanning effect. Tanning agents can be divided into inorganic tanning agents and organic tanning agents by chemical nature. The inorganic tanning agent is mainly a mineral tanning compound. Organic tanning agents can be classified into vegetable tanning agents, aldehyde tanning agents, oil tanning agents, synthetic tanning agents, resin tanning agents, and the like. The tanning agent combines the active groups of the tanning agent and the leather collagen to generate new cross-linking between adjacent peptide chains and molecules of collagen molecules, thereby enhancing the structural stability of the collagen, improving the flexing resistance strength of leather and the effects of chemical agents and microorganisms, greatly improving the contraction temperature of the collagen, and enhancing the moisture and heat resistance stability of the collagen, namely the tanning effect. The environmental pollution caused by the existing leather tanning agent is still to be improved.

Disclosure of Invention

The purpose of the invention is: overcomes the defects in the prior art and provides a preparation method of a green leather tanning agent.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

the preparation method of the green leather tanning agent comprises the following steps: 20-30 parts of natural semi-dry oil, 10-18 parts of tannin, 10-16 parts of glutaraldehyde graft modified starch, 2-8 parts of bisphenol A, 2-6 parts of sodium hexametaphosphate, 1.2-3.6 parts of silicate, 10-20 parts of modified graphene oxide and 1.3-3.2 parts of amino cellulose.

Further, whale liver oil is selected as the natural semi-dry oil.

Further, the tannin is extracted from bark, wood, leaf, fruit and rhizome.

Further, the tannin is obtained by extracting with water in a solvent, concentrating, and spray drying into powder.

Further, the green leather tanning agent comprises the following components in parts by mass: 21-28 parts of natural semi-dry oil, 12-16 parts of tannin, 12-15 parts of glutaraldehyde graft modified starch, 3-6 parts of bisphenol A, 3-5 parts of sodium hexametaphosphate, 1.5-3.2 parts of silicate, 12-18 parts of modified graphene oxide and 1.5-3 parts of amino cellulose.

Further, the green leather tanning agent comprises the following components in parts by mass: 25 parts of natural semi-dry oil, 15 parts of tannin, 13 parts of glutaraldehyde graft modified starch, 4 parts of bisphenol A, 4 parts of sodium hexametaphosphate, 2.4 parts of silicate, 15 parts of modified graphene oxide and 2 parts of amino cellulose.

Further, the green leather tanning agent comprises the following components in parts by mass: 24 parts of natural semi-dry oil, 14 parts of tannin, 14 parts of glutaraldehyde graft modified starch, 5 parts of bisphenol A, 3.2 parts of sodium hexametaphosphate, 3 parts of silicate, 16 parts of modified graphene oxide and 2.5 parts of amino cellulose.

Further, the preparation method comprises the following steps: mixing natural semi-dry oil, tannin, glutaraldehyde graft modified starch, bisphenol A, sodium hexametaphosphate, silicate, modified graphene oxide, amino cellulose and water, and stirring uniformly at room temperature to obtain the green leather tanning agent.

The technical scheme adopted by the invention has the beneficial effects that:

the preparation method of the green leather tanning agent has the advantages of simple production process, low cost and environment-friendly production process, reduces the storage cost of the epoxy leather tanning agent, and simultaneously, the produced leather is soft and full in texture and small in addition amount, so that the production process of the leather can be effectively reduced.

Detailed Description

The invention will now be further illustrated with reference to specific examples.

Example 1

The preparation method of the green leather tanning agent comprises the following steps: 20 parts of natural semi-dry oil, 10 parts of tannin, 10 parts of glutaraldehyde graft modified starch, 2 parts of bisphenol A, 2 parts of sodium hexametaphosphate, 1.2 parts of silicate, 10 parts of modified graphene oxide and 1.3 parts of amino cellulose.

Wherein the natural semi-dry oil is whale liver oil.

Wherein the tannin is obtained by extracting bark, wood, leaf, fruit and rhizome with water as solvent, concentrating, and spray drying to obtain powder.

The preparation method comprises the following steps: mixing natural semi-dry oil, tannin, glutaraldehyde graft modified starch, bisphenol A, sodium hexametaphosphate, silicate, modified graphene oxide, amino cellulose and water, and stirring uniformly at room temperature to obtain the green leather tanning agent.

Example 2

The preparation method of the green leather tanning agent comprises the following steps: 21 parts of natural semi-dry oil, 12 parts of tannin, 12 parts of glutaraldehyde graft modified starch, 3 parts of bisphenol A, 3 parts of sodium hexametaphosphate, 1.5 parts of silicate, 12 parts of modified graphene oxide and 1.5 parts of amino cellulose.

Wherein the natural semi-dry oil is whale liver oil.

Wherein the tannin is obtained by extracting bark, wood, leaf, fruit and rhizome with water as solvent, concentrating, and spray drying to obtain powder.

The preparation method comprises the following steps: mixing natural semi-dry oil, tannin, glutaraldehyde graft modified starch, bisphenol A, sodium hexametaphosphate, silicate, modified graphene oxide, amino cellulose and water, and stirring uniformly at room temperature to obtain the green leather tanning agent.

Example 3

The preparation method of the green leather tanning agent comprises the following steps: 25 parts of natural semi-dry oil, 15 parts of tannin, 13 parts of glutaraldehyde graft modified starch, 4 parts of bisphenol A, 4 parts of sodium hexametaphosphate, 2.4 parts of silicate, 15 parts of modified graphene oxide and 2 parts of amino cellulose.

Wherein the natural semi-dry oil is whale liver oil.

Wherein the tannin is obtained by extracting bark, wood, leaf, fruit and rhizome with water as solvent, concentrating, and spray drying to obtain powder.

The preparation method comprises the following steps: mixing natural semi-dry oil, tannin, glutaraldehyde graft modified starch, bisphenol A, sodium hexametaphosphate, silicate, modified graphene oxide, amino cellulose and water, and stirring uniformly at room temperature to obtain the green leather tanning agent.

Example 4

The preparation method of the green leather tanning agent comprises the following steps: 24 parts of natural semi-dry oil, 14 parts of tannin, 14 parts of glutaraldehyde graft modified starch, 5 parts of bisphenol A, 3.2 parts of sodium hexametaphosphate, 3 parts of silicate, 16 parts of modified graphene oxide and 2.5 parts of amino cellulose.

Wherein the natural semi-dry oil is whale liver oil.

Wherein the tannin is obtained by extracting bark, wood, leaf, fruit and rhizome with water as solvent, concentrating, and spray drying to obtain powder.

The preparation method comprises the following steps: mixing natural semi-dry oil, tannin, glutaraldehyde graft modified starch, bisphenol A, sodium hexametaphosphate, silicate, modified graphene oxide, amino cellulose and water, and stirring uniformly at room temperature to obtain the green leather tanning agent.

Example 5

The preparation method of the green leather tanning agent comprises the following steps: 28 parts of natural semi-dry oil, 16 parts of tannin, 15 parts of glutaraldehyde graft modified starch, 6 parts of bisphenol A, 5 parts of sodium hexametaphosphate, 3.2 parts of silicate, 18 parts of modified graphene oxide and 3 parts of amino cellulose.

Wherein the natural semi-dry oil is whale liver oil.

Wherein the tannin is obtained by extracting bark, wood, leaf, fruit and rhizome with water as solvent, concentrating, and spray drying to obtain powder.

The preparation method comprises the following steps: mixing natural semi-dry oil, tannin, glutaraldehyde graft modified starch, bisphenol A, sodium hexametaphosphate, silicate, modified graphene oxide, amino cellulose and water, and stirring uniformly at room temperature to obtain the green leather tanning agent.

Example 6

The preparation method of the green leather tanning agent comprises the following steps: 30 parts of natural semi-dry oil, 18 parts of tannin, 16 parts of glutaraldehyde graft modified starch, 8 parts of bisphenol A, 6 parts of sodium hexametaphosphate, 3.6 parts of silicate, 20 parts of modified graphene oxide and 3.2 parts of amino cellulose.

Wherein the natural semi-dry oil is whale liver oil.

Wherein the tannin is obtained by extracting bark, wood, leaf, fruit and rhizome with water as solvent, concentrating, and spray drying to obtain powder.

The preparation method comprises the following steps: mixing natural semi-dry oil, tannin, glutaraldehyde graft modified starch, bisphenol A, sodium hexametaphosphate, silicate, modified graphene oxide, amino cellulose and water, and stirring uniformly at room temperature to obtain the green leather tanning agent.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.