Smectite Clay Fabric Softener with Etheramine Stabilizers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing fabric softener compositions, especially those based on quaternary ammonium compounds, face challenges such as hydrolytic instability and significant organic compound burden on water waste management systems, particularly in rinse cycle applications.
Innovation Solution
A fabric softener composition comprising smectite clay, a non-polymeric amine component, a water-soluble metal halide or sulfate, and optionally an oil, which provides a high degree of softening by ensuring uniform deposition of smectite clay on fabric without clumping or flocculation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If quaternary ammonium compounds are used as fabric softeners, then fabric softening is achieved, but hydrolytic instability occurs
Solution Approach 1:
The patent extracts the problematic quaternary ammonium compounds from the fabric softener formulation and replaces them with an inorganic-based system comprising smectite clay, non-polymeric amine component, and water-soluble metal halide or sulfate. This extraction eliminates the hydrolytic instability issue while maintaining fabric softening effectiveness through the inorganic clay deposit on fabric surfaces.
Solution Approach 2:
The patent fundamentally changes the chemical composition parameters from organic quaternary ammonium compounds to an inorganic system based on smectite clay with specific cation exchange capacity (50-150 meq/100g). This parameter change from organic to inorganic chemistry resolves the hydrolytic stability problem while achieving comparable softening results.
2Reliability
If quaternary ammonium compounds are used as fabric softeners, then fabric softening is achieved, but significant organic compound burden is created on water waste management systems
Solution Approach 1:
The patent removes the organic quaternary ammonium compounds that create waste management burdens and replaces them with inorganic smectite clay and non-polymeric amines. This extraction eliminates the substantial organic compound burden on water treatment systems while maintaining fabric softening through inorganic clay deposition.
Solution Approach 2:
The patent converts the traditionally harmful organic-based softening approach into a beneficial inorganic-based system. The smectite clay, which is naturally occurring and inorganic, provides softening without creating the organic pollution problems associated with conventional quaternary ammonium compounds, thus turning a potentially harmful formulation into an environmentally beneficial one.
3Object-generated harmful factors
If smectite clay is used alone in rinse cycle, then environmental benefits are achieved, but uniform deposition on fabric is difficult due to negative charge repulsion
Solution Approach 1:
The patent introduces a non-polymeric amine component as an intermediary between the negatively charged smectite clay and the fabric surface. The amine component facilitates clay deposition by modifying surface charges or acting as a bridging agent, enabling uniform clay distribution on fabric without compromising the environmental benefits of using inorganic clay.
Solution Approach 2:
The patent modifies the surface charge parameters of the smectite clay system by adding water-soluble metal halide or sulfate and non-polymeric amine component. These additions alter the electrical properties and surface characteristics of the clay, enabling it to deposit uniformly on fabric surfaces despite the inherent negative charge repulsion between clay and fabric.
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 composition achieves a high degree of fabric softening comparable to commercial formulations, while maintaining water absorbency of cellulosic fabrics and minimizing lint generation during drying.
Implementation Method 1
provides a high degree of softening by ensuring uniform deposition of smectite clay on fabric without clumping or flocculation
Implementation Method 2
a water-soluble metal halide or sulfate
Data Source
AI summary
The present disclosure relates generally to fabric softener compositions and processes for treating fabric using the same. The fabric softener compositions described herein include a smectite clay; a non-polymeric amine component selected from the group consisting of primary amines, secondary amines and tertiary amines; a water-soluble metal halide or sulfate; and optionally, an oil selected from the group consisting of a mineral oil and a vegetable oil.