Trehalose-Based Anti-Odor Coating for Polyester Textile Odor Retention
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Solution Overview
Problem
Current methods for addressing body odor in clothing, such as masking or preventing odor formation, do not effectively address the issue of odor retention in polyester textiles and may cause additional problems.
Innovation Solution
An aqueous solution containing trehalose as an inhibitor agent, a polycarboxylic acid crosslinking agent, and optionally a stain release agent, softener, and alkali metal salt catalyst is applied to polyester textiles to form a surface coating that reduces odor retention by inhibiting lipid peroxidation, aldehyde formation, and oxidation processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional odor masking or prevention methods are applied to polyester textiles, then odor control is partially achieved, but odor retention persists and additional problems are caused
Solution Approach 1:
The patent converts the harmful oxidation process that causes odor into a beneficial controlled reaction by using trehalose as an antioxidant that selectively inhibits lipid peroxidation and aldehyde formation while maintaining other textile properties. This transforms the harmful chemical mechanism into a controlled protective action.
Solution Approach 2:
The invention creates a composite treatment system combining trehalose (antioxidant), polycarboxylic acid crosslinking agent, and optional catalyst to form a multi-functional coating on polyester textiles. This composite approach addresses odor retention through multiple mechanisms simultaneously: antioxidant protection, crosslinking for durability, and catalytic enhancement.
2Object-affected harmful factors
If a surface coating is applied to inhibit odor-causing mechanisms, then odor retention is reduced, but the complexity of the treatment process increases
Solution Approach 1:
The trehalose-based composition performs multiple functions simultaneously: it acts as an antioxidant to inhibit lipid peroxidation, a crosslinking agent to bind to polyester fibers for durability, and maintains textile processing compatibility. This multi-functionality reduces the need for separate treatment steps.
Solution Approach 2:
The patent optimizes specific parameters including trehalose concentration (0.1-10% w/w), crosslinking agent ratio (0.1-5:1 w/w), and curing temperature (60-200°C) to achieve effective odor inhibition while maintaining simple processing conditions that are compatible with existing textile manufacturing workflows.
3Object-generated harmful factors
If strong oxidants or antibacterial agents are used to eliminate odor sources, then odor formation is prevented, but harmful side effects and damage to textile properties occur
Solution Approach 1:
Instead of using aggressive oxidants or antibacterials that cause damage, the patent employs trehalose as a mild antioxidant that selectively interferes with the harmful lipid peroxidation pathway that generates malodorous aldehydes, while preserving beneficial textile properties and avoiding side effects.
Solution Approach 2:
Trehalose acts as an intermediary substance that mediates between the polyester fiber and the odor-causing oxidation process. It provides antioxidant protection to the textile system without requiring direct contact with or damage to the fiber structure, unlike strong chemical agents.
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
The solution significantly reduces odor retention in polyester textiles by inhibiting odor-causing mechanisms, with a durable effectiveness even after multiple wash cycles, maintaining performance without interfering with laundering efficiency.
Implementation Method 1
The inhibiting agent can function as a lipid peroxidation inhibitor
Implementation Method 2
The inhibiting agent can function as an antioxidant
Implementation Method 3
The solution also includes a polycarboxylic acid crosslinking agent
Data Source
Figure 1
Figure 2A~2B
Figure 2C~2D
AI summary
One or more aspects of the present disclosure are directed to aqueous solutions that can be used to make substrates such as an article that can inhibit or limit one or more sources of odor. In an aspect, the aqueous solution can include one or more components, where one of the components is an inhibiting agent that can function to inhibit or limit the sources of odor in an article such as a textile.