包装印刷板块9月16日涨0.28%，王子新材领涨，主力资金净流出1.49亿元

Market Performance - The packaging and printing sector increased by 0.28% on September 16, with Wangzi New Materials leading the gains [1] - The Shanghai Composite Index closed at 3861.87, up 0.04%, while the Shenzhen Component Index closed at 13063.97, up 0.45% [1] Top Gainers - Wangzi New Materials (002735) closed at 16.85, up 4.98%, with a trading volume of 620,900 shares and a transaction value of 1.042 billion yuan [1] - Donggang Co., Ltd. (002117) closed at 12.10, up 3.68%, with a transaction value of 229 million yuan [1] - Yingtong Co., Ltd. (002599) closed at 9.22, up 3.36%, with a transaction value of 267 million yuan [1] Top Losers - Hongyu Packaging (837174) closed at 36.90, down 5.36%, with a transaction value of 225 million yuan [2] - Jiahe Technology (872392) closed at 35.00, down 3.55%, with a transaction value of 25.43 million yuan [2] - Yilian Co., Ltd. (002846) closed at 20.13, down 2.42%, with a transaction value of 651 million yuan [2] Capital Flow - The packaging and printing sector experienced a net outflow of 149 million yuan from institutional investors, while retail investors saw a net inflow of 204 million yuan [2][3] - Wangzi New Materials had a net inflow of 98.87 million yuan from institutional investors, but a net outflow of 63.82 million yuan from retail investors [3]