Water-Based Textile Printing Adhesive for Durable Fabric Release
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Solution Overview
Problem
Existing water-based temporary fixation agents for textile printing have low storage stability and durability due to the use of organic solvents, which also impose environmental restrictions due to solvent volatilization.
Innovation Solution
A water-based adhesive composition for textile printing comprising water, a (meth)acrylic resin, and persulfate, with specific persulfate content ranging from 100 ppm to 2000 ppm, is used to form an adhesive layer on a transport belt, enhancing durability and storage stability without the need for organic solvents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a hydrophobic resin dissolved in an organic solvent is used as a temporary fixation agent, then the adhesive layer achieves moderate adhesive force, water resistance, and mechanical strength, but the organic solvent volatilizes during coating causing environmental restrictions and reduced storage stability
Solution Approach 1:
The patent changes the fundamental parameter of the solvent system from organic solvent to water-based system. This substitution eliminates the harmful volatilization of organic solvents while maintaining the adhesive layer's durability through careful selection of water-soluble polymers and crosslinking agents that provide equivalent or superior performance without environmental restrictions
Solution Approach 2:
The patent converts the potential harm of water-based systems (which traditionally offer lower durability) into a benefit by using specific water-soluble polymers and crosslinking mechanisms. The water-based formulation initially seemed to compromise durability, but through innovative polymer selection and crosslinking chemistry, the patent achieves both environmental friendliness and long-term adhesive layer stability
2Object-affected harmful factors
If a water-based temporary fixation agent is used to eliminate organic solvent volatilization, then environmental restrictions are reduced, but the storage stability and durability of the adhesive layer become low
Solution Approach 1:
The patent employs composite material strategy by combining water-soluble polymers with specific crosslinking agents. This composite approach creates a synergistic effect where the polymer matrix provides the base adhesive properties while the crosslinking agents form a three-dimensional network structure that significantly enhances durability and storage stability, proving that water-based systems can match organic solvent-based systems in performance
Solution Approach 2:
The patent changes the chemical composition parameters of the water-based system by selecting specific polymers with appropriate molecular weights, functional groups, and crosslinking densities. These parameter optimizations ensure that the adhesive layer achieves sufficient durability and storage stability while maintaining the environmental benefits of a water-based formulation
3Reliability
If an adhesive layer is formed on the transport belt to hold fabric during printing, then stable fabric transport is achieved, but the adhesive force must be moderate to allow easy detachment after printing
Solution Approach 1:
The patent applies dynamics principle by designing an adhesive system whose strength can dynamically adapt to different operational phases. During fabric transport, the adhesive provides strong holding force; during detachment, the adhesive force naturally reduces. This is achieved through the specific polymer-crosslinker system that creates reversible or controllable adhesive bonds, allowing the same adhesive layer to satisfy both strong attachment and easy release requirements
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 adhesive layer provides stable fixation and release of fabrics during printing, with improved mechanical strength and water resistance, while eliminating environmental concerns associated with organic solvent use.
Implementation Method 1
a water-based adhesive composition for textile printing including water, a (meth)acrylic resin, and a persulfate
Implementation Method 2
an adhesive layer is formed at the surface of a transport belt that transports the fabric, and the surface being in contact with the fabric. As a result, the fabric can be held by being adhered to the transport belt
Data Source
AI summary
A water-based adhesive composition for textile printing of the present disclosure includes water, a (meth)acrylic resin, and a persulfate, in which a content of the persulfate is 100 ppm or more and 2000 ppm or less. A pH of the water-based adhesive composition for textile printing at 23° C. is preferably 7.5 or more and 9.0 or less.