2D Crosslinked Silicone Emulsion for Stable Textile Softening
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Solution Overview
Problem
Existing silicone emulsion systems for treating textiles face challenges with stability and effectiveness in providing enhanced smoothness and softness, as well as issues related to the use of formaldehyde-releasing agents and short emulsion mixture lifetimes.
Innovation Solution
A novel aqueous silicone-containing emulsion with a substantially two-dimensional crosslinked structure is created through the copolymerization of cyclic and/or linear siloxanes with tri-alkoxy and bi-alkoxy silanes in a surfactant medium, allowing for improved emulsification and stability without the need for solvents or diluents, and enhancing surface softness and smoothness on fabrics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If formaldehyde addition products are used as crosslinking agents to impart smooth-dry and flame retardant properties, then fabric performance is improved, but formaldehyde vapor is continuously released causing harmful effects
Solution Approach 1:
The patent extracts and removes the harmful formaldehyde component from the crosslinking system, replacing it with alternative crosslinking mechanisms that do not involve formaldehyde release, thereby eliminating the harmful effect while maintaining fabric performance
Solution Approach 2:
The patent changes the chemical parameters of the crosslinking agent from formaldehyde-based to alternative compounds, fundamentally altering the chemical composition to eliminate formaldehyde vapor release while preserving the desired fabric properties
2Reliability
If organofunctional silicone emulsions are used to enhance smoothness and softness of textiles, then fabric quality is improved, but emulsion stability and lifetime are reduced
Solution Approach 1:
The patent applies preliminary stabilization measures to the emulsion formulation, incorporating specific emulsifiers and stabilizing agents before application to ensure long-term emulsion stability and extended lifetime while maintaining fabric quality enhancement
Solution Approach 2:
The patent creates a composite emulsion system combining multiple components including silicones, emulsifiers, and stabilizers that work synergistically to provide both enhanced fabric quality and improved emulsion stability and lifetime
3Reliability
If amino silicone and epoxy silicone are used to provide partially crosslinked silicones on fabric surface, then smoothness and softness are enhanced, but emulsion mixture lifetime becomes short
Solution Approach 1:
The patent incorporates preliminary stabilization measures in the emulsion formulation to prevent premature crosslinking and extend emulsion lifetime, while still enabling the amino and epoxy silicones to effectively enhance smoothness and softness when applied
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 novel emulsion system provides a stable and effective treatment for textiles, offering improved softness and smoothness while avoiding the limitations of previous technologies, such as formaldehyde release and short emulsion lifetimes, with enhanced binding efficiency and prolonged performance.
Implementation Method 1
the copolymerization of cyclic and/or linear siloxanes with tri-alkoxy and bi-alkoxy silanes
Implementation Method 2
an emulsion-forming amount of a surfactant mixture
Implementation Method 3
The inventive two-dimensional structures of the invention bind with fabrics more efficiency and effectively
Data Source
AI summary
The present invention provides a process for preparing substantially two-dimensional partially crosslinked organo-functional silicone in an aqueous emulsion system. The novel composition provides enhanced surface softness and smoothness to various materials.