包装印刷板块2月4日涨1.13%，集友股份领涨，主力资金净流入5.25亿元

Market Performance - The packaging and printing sector increased by 1.13% on February 4, with Jiyou Co., Ltd. leading the gains [1] - The Shanghai Composite Index closed at 4102.2, up 0.85%, while the Shenzhen Component Index closed at 14156.27, up 0.21% [1] Top Gainers - Jiyou Co., Ltd. (603429) closed at 9.90, up 8.32% with a trading volume of 270,300 shares and a transaction value of 265 million [1] - Yutong Technology (002831) closed at 30.01, up 6.76% with a trading volume of 99,000 shares and a transaction value of 291 million [1] - Shunhao Co., Ltd. (002565) closed at 17.87, up 5.55% with a trading volume of 2.7288 million shares and a transaction value of 4.916 billion [1] Top Losers - Xiangxinglong (920075) closed at 27.14, down 4.13% with a trading volume of 15,200 shares and a transaction value of 41.7687 million [2] - Jiamei Packaging (002969) closed at 22.99, down 3.36% with a trading volume of 565,400 shares and a transaction value of 1.313 billion [2] - Hongyu Packaging (920274) closed at 27.49, down 3.14% with a trading volume of 19,400 shares and a transaction value of 53.6417 million [2] Capital Flow - The packaging and printing sector saw a net inflow of 525 million from main funds, while retail funds experienced a net outflow of 118 million [2] - The main funds' net inflow for Shunhao Co., Ltd. (002565) was 544 million, while retail funds had a net outflow of 156 million [3] - Jiyou Co., Ltd. (603429) had a main fund net inflow of 33.791 million, with retail funds experiencing a net outflow of 26.8545 million [3]