Screen printing water-based ink

Patent Name Screen printing water-based ink Patent applicant Tianjin University of Science and Technology Principal Applicant Address 300222 Inventor Li Shuca Application No. 10,038 Dagu South Road, Hexi District, Tianjin Application No. 200410018809.3 Date of Application 2004.03.30 Certification Date Approval No. 1676556 Approved Announcement Date 2005.10.05 Specification CD-ROM D0540 Main Classification Code C09D11/10 Classification Number C09D11/10 Sub-item Original Application Serial No. Abstract of Invention The present invention relates to a screen-printing aqueous ink and a method of manufacturing the same. The ink is made up of high-performance waterborne polyurethane, pigments and additives. It is completed by the preparation of the aqueous polyurethane and ink preparation. First, high performance waterborne polyurethanes were synthesized by selecting the appropriate components, grouping ratios, and optimizing synthesis conditions. It is then prepared by thoroughly mixing 70-87 wt% of aqueous polyurethane, 12-18 wt% of pigment, 0-0.8 wt% of dispersant, 0-0.5 wt% of defoamer, 0.1-1 wt% of thickener, and 0-6 wt% of mediator. Ink painting. The water-based ink of the present invention has strong adhesion, high adhesive strength, bright color, and excellent printability, and is suitable for surface printing and bonding of PVC substrates, and can be used for making cards such as magnetic cards, bank cards, and credit cards. Sovereign Item 1, an aqueous ink for screen printing, characterized in that the weight percentage (wt%) of the components and contents included in the ink is: waterborne polyurethane 70-87 pigment 12-18 dispersant 0- 0.8 Defoamer 0-0.5 Thickener 0.1-1 Conditioner 0-6