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From rolls of film to finished bags: a complete process for customized flexible packaging in one article

行业资讯 4570


Many customers often ask when customizing packaging, "Why does it take 10 to 15 days to make a bag?" , "Why can't we order today and ship tomorrow?"

其实,每一个看似简单的铝箔袋卷膜The process of "refining" has to go through multiple "refining" in both physics and chemistry. As a deep-rooted industry for many years旭鼎新材料包装,今天我们就带您走进车间,揭秘软包装从一粒树脂到一件艺术品的完整生产链。

From rolls of film to finished pouches: the complete process of customizing flexible packaging in one article (images 1)

第一步:设计与制版(一切方案的起点)

在正式开机前,设计稿的还原至关重要。

  • 设计优化: 旭鼎的技术人员会根据包装材质的收缩率调整图案,确保封口处不切到文字。
  • 电雕制版: 采用高精度的电子雕刻钢辊。一个颜色对应一根版辊,这决定了印刷的清晰度和色彩饱和度。

第二步:凹版印刷(赋予包装灵魂)

这是将品牌形象落地到薄膜上的过程。

  • 高速里印: 旭鼎采用先进的多色高速凹版印刷机。图案印刷在薄膜的里层,这样可以保证油墨不直接接触食品,且图案耐刮擦、不掉色。
  • 在线检测: 印刷过程中,自动检测系统会扫描每一个像素,确保无漏点、无套色偏差。

Step 3: Composite Processing ("merging" of multiple layers of material)

单层材料往往无法同时满足防潮、避光和抗穿刺的要求,因此需要多层复合。

  • 工艺选择: * 干式复合: 适用于耐高温蒸煮、高强度的铝箔复合。
    • 无溶剂复合: 更加绿色环保,残留极低,是现代食品包装的主流选择。
  • 旭鼎优势: 我们严格控制上胶量,确保每一层之间剥离强度达标,绝不脱层。

第四步:熟化/固化(必不可少的等待)

这是软包装生产中最耗时的一步,也是决定品质的关键。

  • 为什么要等? 刚复合好的卷膜,胶水尚未完全反应。需要送入恒温(通常45-55℃)的熟化室存放48-72小时。
  • 作用: 排除溶剂残留(异味),增强复合牢度,确保袋子平整不卷曲。

Step 5: Slitting and bagging (from "roll" to "bag")

  • 卷膜交付: 如果客户有自动包装机,产品到分切这一步就完成了,被切成指定宽度的卷材出库。
  • 成品袋定制: 进入制袋机。通过热封刀将膜材封合成自立袋、八边封或真空袋
  • 加装附件: 根据需求加装拉链、吸嘴、单向排气阀或易撕口。

第六步:品控与入库(最后的防线)

Before each batch of products leave the factory, Xuding laboratory will carry out "devil test":

  • 拉力测试: 确保封口牢不可破。
  • 密封性测试: 将袋子放入真空桶,观察是否有气泡溢出。
  • 溶剂残留检测: 确保符合国家食品安全标准。

💡 旭鼎给采购商的温馨提示:

Once you understand the process, you'll understand why it's often difficult to balance quality with "rush orders".

  1. 预留周期: 建议在大货用完前20天左右开始下单,为熟化留够时间,品质更稳定。
  2. 定稿即定全局: 制版一旦完成就无法更改,所以印前核对稿件(文字、条码)极其重要。

From the tension control of the film to the temperature control of the bag making, Xuding New Material Packaging's strict requirements on every detail are only to give your products a safe and beautiful "dowry".

想亲眼看看您的包装是如何诞生的吗?欢迎预约参观旭鼎现代化生产车间,见证品质包装的诞生过程!


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