一种水性聚氨酯纸张印刷油墨及其制备方法
By introducing silane coupling agent KH-560 grafted with nanocellulose and dopamine-modified nanotitanium dioxide into waterborne polyurethane ink, combined with PEG-1000 and amino-modified nanoSiO2, the problem of insufficient adhesion of waterborne polyurethane ink on paper was solved, achieving high static adhesion and excellent dynamic performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANTOU TIANSHENG PACKAGING MATERIALS CO LTD
- Filing Date
- 2026-03-17
- Publication Date
- 2026-07-17
AI Technical Summary
Insufficient adhesion of water-based polyurethane inks to paper substrates results in poor printing quality, failing to meet the requirements of actual printing production.
A ternary cross-linked structure is formed by grafting nanocellulose with silane coupling agent KH-560 and waterborne polyurethane, and a core-shell-crown structure is constructed by modifying nano-titanium dioxide with dopamine and aminosilane. At the same time, PEG-1000 and amino-modified nano-SiO2 are introduced to enhance the interfacial bonding and flexibility between ink and paper.
It significantly improves the adhesion performance of water-based polyurethane inks on paper, enhances static adhesion and dynamic folding and abrasion resistance, and prevents micro-cracks from forming in the ink film layer due to interfacial stress concentration under dynamic stress.
Smart Images
Figure CN121950106B_ABST