Heat-Transfer Textile Ink Composition with Silane Adhesion Promoter
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Solution Overview
Problem
Current silicone inks face difficulties in adhering to certain substrates during the heat-transfer printing process, which affects the reliability and durability of the printed images.
Innovation Solution
A heat-transfer textile ink composition that includes a silicone ink base, pigments, and a heat-transfer adhesion promoter comprising organosilanes and metal chelates, which enhances the adhesion of the silicone ink or glue to substrates, improving the printing process's efficiency and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional silicone inks are used for heat-transfer printing, then the printing process is simple and fast, but the adhesion of the ink to substrates is poor
Solution Approach 1:
The patent introduces a silane coupling agent as an intermediary substance between the silicone ink base and the substrate. This coupling agent contains both silane groups that react with the silicone ink and functional groups that bond to the substrate surface, thereby mediating the adhesion interface and solving the poor adhesion problem without fundamentally changing the printing process
Solution Approach 2:
The patent creates a composite ink system by combining silicone ink base, pigments, and silane coupling agents into a unified composition. This composite material integrates the benefits of silicone (soft hand feel, washing durability) with enhanced adhesion properties provided by the silane coupling agent, resolving the contradiction between simplicity and adhesion performance
2Reliability
If the ink composition is simplified for fast printing, then the printing efficiency is high, but the adhesion promoter effectiveness is reduced
Solution Approach 1:
The patent optimizes the concentration parameters of the silane coupling agent in the ink formulation, finding the optimal balance between adhesion promotion and ink composition simplicity. By carefully controlling the amount of silane coupling agent (typically 1-10% by weight of the ink), the patent achieves effective adhesion enhancement without significantly complicating the ink composition or reducing printing efficiency
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 proposed solution significantly improves the adhesion of silicone inks to substrates, ensuring better image quality and durability, even after multiple washes, by using a heat-transfer adhesion promoter that includes organosilanes and metal chelates, thereby addressing the adhesion challenges faced by existing silicone inks.
Implementation Method 1
a silane coupling agent in a heat-transfer adhesion promoter, wherein the silane coupling agent has a formula (I) or (II)
Implementation Method 2
the silane coupling agent forms chemical bonds between the silicone ink base and the substrate
Data Source
AI summary
A heat-transfer textile ink product comprising (a) silicone ink base composition; (b) one or more pigments; and (c) a heat-transfer adhesion promoter.