Core Viewpoint - The transformation of Shuanghui's chemical packaging industry, particularly in the production of PVDC (polyvinylidene chloride) casings, marks a significant advancement in China's food packaging sector, overcoming previous reliance on imported materials and establishing a leading position in the industry [1][2][3] Group 1: Industry Development - The PVDC casing film is crucial for the production of ham sausages, directly affecting product quality and safety, with stringent production standards [1] - In the 1990s, high-performance casing film technology was dominated by foreign companies, leading to high costs of up to 120,000 yuan per ton due to reliance on imports [1] - Shuanghui Group established a packaging technology research center and invested in the development of domestic production capabilities, leading to the establishment of nine production bases across China [1][2] Group 2: Technological Advancements - The company has implemented intelligent upgrades to production lines, resulting in over a 50% increase in hourly production capacity of PVDC films and significant improvements in labor efficiency [2] - Shuanghui has developed a comprehensive R&D and testing system, holding 143 valid patents, and has led the development of national standards for casing films [2] - The company has adopted solvent-free adhesive technology and is actively involved in revising national and industry standards, promoting environmentally friendly practices [2] Group 3: Market Expansion - Shuanghui's PVDC casing films and other products are now exported to over 10 countries, including Vietnam and Indonesia, with an annual export volume of 5,000 tons, enhancing international competitiveness [3] - The company's strategy of industrialization, diversification, internationalization, and digitalization has reshaped the food packaging industry, transitioning from "import substitution" to "global leadership" [3]

新京报讯（记者王思炀）双汇第一工业园的车间内，自动化设备正高效运转，将白色小颗粒转化为坚韧的PVDC肠衣膜。薄薄的肠衣膜，曾是中国食品工 业"卡脖子"的痛点，如今却成为双汇化工包装业引领行业发展的亮点。 以PVDC肠衣膜为核心，双汇化工包装业已构建起从PVDC树脂合成到终端应用的全产业链闭环——上游建设PVDC树脂工厂，中游引入国际一流生产线， 下游通过拓展医疗包装、饮品包装等高附加值应用市场，实现了从"传统渠道"到"多元场景"的转变。其产业升级，也展现出双汇在"产业化、多元化、国际 化、数字化"战略方针指引下，技术创新与产业链整合的协同推进，以多元场景拓展重塑了食品包装行业的竞争格局。 双汇PVDC肠衣膜生产中。 企业供图 为提升生产效率和产品质量，双汇吹膜、印刷、复合等工厂积极引进设备改造，对生产线进行智能化升级。双汇化工包装事业部相关负责人表示，通过改 造，PVDC原膜小时产能提升50%以上，复合生产劳效提升了50%以上，还降低了千万元投资成本，自动化水平大幅提升。 目前，双汇化工包装业建立了完善的产品研发、检测体系，拥有有效专利达143项，技术水平走在行业前列。双汇不仅牵头制定了肠衣膜国家标准，还参与 ...

在双汇第一工业园繁忙的车间里，一颗颗不起眼的白色小颗粒在自动化设备中流转、延展，最终化为包 裹着千万根火腿肠的坚韧外衣——PVDC肠衣膜。 这层薄如蝉翼的包装，如今成为双汇化工包装业引领行业发展的旗帜，从技术垄断到自主创新出海，从 肠衣单点突破到全产业链发展，双汇化工包装业的产业升级之路，成为中国制造业砥砺前行的缩影。 从技术垄断到自主突破 PVDC肠衣膜，这个看似不起眼的包装材料，实则是火腿肠生产过程中至关重要的部分，它不仅承载包 装功能，更直接影响着火腿肠的口感、保鲜及食用安全。 由于肠衣膜与火腿肠肉馅直接接触，因此它必须具备阻氧、阻湿、耐油、安全的特性，这要求肠衣膜的 生产质量标准极为严格，必须符合食品级包装材料的国家标准；然而在上世纪90年代，高性能肠衣膜技 术完全被国外垄断。 2004年，根据产业布局和业务发展需要，双汇将涉及包装的生产单元进行整合，成立了化工包装事业 部。经过20年发展，双汇化工包装业在全国建成9个生产基地，涵盖PVDC树脂合成、薄膜加工、彩色 印刷、多层复合、分切制袋、纸箱加工、铝制品等业务，其中建成了全球最大的PVDC薄膜加工、研发 基地，也带动我国肠衣膜及其技术，实现从引进吸 ...