The Distribution of Poly-DADMAC Additive in the Inkjet Coating Layer and its Influence on the Print Quality

被引：0

作者：

Jang, Jung Won ^{[1
,4
]}

Lee, Jee-Hong ^{[1
,2
]}

Youn, Hye Jung ^{[1
,3
]}

Lee, Hak Lae ^{[1
,3
]}

机构：

[1] Seoul Natl Univ, Coll Agr & Life Sci, Dept Agr Forestry & Bioresources Sci, Seoul 08826, South Korea

[2] Seoul Natl Univ, Ctr Coating Mat & Proc, Seoul 08826, South Korea

[3] Seoul Natl Univ, Res Inst Agr & Life Sci, Seoul 08826, South Korea

[4] Tailim Paper, R&D Ctr, 74,Gongdan 1 Daero 379 Beonan Gil, Siheung Si, Gyeonggi Do, South Korea

来源：

BIORESOURCES | 2023年 / 18卷 / 01期

关键词：

Inkjet coating; poly-DADMAC; Adsorption; Print quality; Water fastness; SURFACE-CHEMISTRY; INKS;

D O I：

10.15376/biores.18.1.1279-1292

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

Maximizing the functionality of cationic polydiallyldimethylammonium chloride (poly-DADMAC) additive with minimal dosage in inkjet coatings can contribute to both an improvement in quality and a cost reduction. To do this, it is essential to understand how the cationic additive is distributed in the coating layer and how it affects the print quality. This study presents a three-step investigation to enhance the understanding of the distribution of poly-DADMAC, as well as its effect on inkjet print quality. First, the adsorption behavior of poly-DADMAC on silica pigments was investigated by measuring the surface charge of silica and the adsorption of the cationic additive. Second, the influence of poly-DADMAC on the printability of binder films was investigated. Finally, the effect of poly-DADMAC on the print quality of inkjet paper was examined. The addition of poly-DADMAC improved the print quality of the inkjet paper because of the improved holdout of the negatively charged colorants in the ink.

引用

页码：1279 / 1292

页数：14