Polyphenol-Based Leather Finishing Agent via One-Step Hydrolysis
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Solution Overview
Problem
Current leather finishing agents often require multiple steps and additional functional chemicals to achieve multi-performance improvements, leading to increased preparation time, cost, and complexity, while also generating waste and environmental concerns.
Innovation Solution
A one-step method involving a reaction mixture of polyphenol, hexamethylene tetramine, and protonic acid, heated and then hydrolyzed with water to create a leather finishing agent that enhances mechanical properties and ultraviolet resistance, using common polyphenols and bulk chemicals like hexamethylene tetramine, with a green and environmentally friendly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple functional chemicals and multi-step reactions are used to achieve multi-performance improvement, then the performance of leather finishing agent is improved, but the preparation time and cost increase
Solution Approach 1:
The patent combines multiple functional chemicals (polyphenol, hexamethylene tetramine, and protonic acid) into a single integrated reaction system that produces a multifunctional leather finishing agent in one step, eliminating the need for separate preparation steps for different functionalities
Solution Approach 2:
The reaction system using polyphenol, hexamethylene tetramine, and protonic acid creates a finishing agent that simultaneously provides multiple performances (adhesion, yellowing resistance, mechanical properties, and ultraviolet resistance) through a universal one-step process
2Reliability
If multiple functional chemicals and multi-step reactions are used to achieve multi-performance improvement, then the performance of leather finishing agent is improved, but the cost increases
Solution Approach 1:
The patent merges multiple functional chemicals into a single integrated reaction system that produces a multifunctional leather finishing agent in one step, eliminating the need for separate preparation steps for different functionalities
Solution Approach 2:
The reaction system using polyphenol, hexamethylene tetramine, and protonic acid creates a finishing agent that simultaneously provides multiple performances (adhesion, yellowing resistance, mechanical properties, and ultraviolet resistance) through a universal one-step process
3Reliability
If multiple functional chemicals and multi-step reactions are used to achieve multi-performance improvement, then the performance of leather finishing agent is improved, but the preparation process becomes more complex
Solution Approach 1:
The patent combines multiple functional chemicals (polyphenol, hexamethylene tetramine, and protonic acid) into a single integrated reaction system that produces a multifunctional leather finishing agent in one step, eliminating the need for separate preparation steps for different functionalities
Solution Approach 2:
The reaction system using polyphenol, hexamethylene tetramine, and protonic acid creates a finishing agent that simultaneously provides multiple performances (adhesion, yellowing resistance, mechanical properties, and ultraviolet resistance) through a universal one-step process
4Reliability
If conventional leather finishing agents are used, then the leather surface finishing is protected, but the mechanical properties and ultraviolet resistance are not sufficiently enhanced
Solution Approach 1:
The patent creates a composite chemical system combining polyphenol (for UV resistance), hexamethylene tetramine (for adhesion and mechanical strength), and protonic acid (for reaction activation), which together provide both surface finishing protection and enhanced mechanical properties with ultraviolet resistance
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method results in a leather finishing agent that significantly improves mechanical properties and UV resistance with a short reaction time, low costs, and minimal environmental impact, while avoiding waste generation, and is applicable in a single-step process.
Implementation Method 1
hydrolyzing the reaction mixture, and dispersing the hydrolyzed reaction mixture with water to form the leather finishing agent
Data Source
AI summary
A leather finishing agent that can enhance the mechanical properties and ultraviolet resistance of leather and a preparation method thereof are disclosed that relate to the field of leather additives. It was prepared by using polyphenol as raw material, hexamethylene tetramine as auxiliary agent, and a protonic acid as solvent, then heating and adding water for hydrolysis and dispersion. The method has the advantages of low production cost, simple process, high preparation efficiency, green production process and environmental protection. The leather finishing agent can be used in the finishing section after leather tanning. After finishing, the mechanical properties of the leather were significantly enhanced, and its UV resistance was also significantly improved.