新闻中心

马口铁罐、金属铁桶，定制铁盒，一体化工艺，Tin cans, metal pails, custom‑made tin boxes, integrated manufacturing process

内涂是什么材质？符合食品接触标准吗？What material is the interior coating? Does it comply with food‑contact standards?

作者：admin　来源：　日期：2026/8/24 14:05:36

聊城市昌意制罐食品罐内壁主要采用环氧酚醛、聚酯、乙烯基类食品级有机涂层，在马口铁基材和食品之间构建一层致密防护层，隔离金属基材与内容物直接接触，罐体全部符合国内食品接触强制标准，可直接盛装食品。产品严格遵循金属材料制品、食品接触用涂料及涂层国标，每批次均经过第三方机构食品安全检测，做到无毒无味；严控总迁移量≤10mg/dm²，铅、镉重金属迁移、双酚 A 迁移均满足国标限定值，规避有害物质析出风险。

不同物料酸碱度、油脂、糖分含量不同，对涂层耐蚀性能要求差异明显，昌意制罐会依据客户实际盛装物匹配专属内涂方案。针对食用油等油脂类产品，选用高耐油配方涂层，抵御油脂长期浸润造成的涂层溶胀老化；针对果酱、果类罐头等酸性食品，采用改性抗酸内涂，抵抗有机酸侵蚀，减少金属离子溶出；针对蜂蜜、糖浆等高糖食品，选用抗糖化、低粘附涂层，防止高温储存环境下涂层发生劣化变质，延长罐体使用寿命。

生产端实行全流程品控管控，涂料进厂即开展原料核验，印铁涂布工序管控烘烤温度与时间，成品每批开展涂膜完整性检测，缺陷电流平均值控制在 15mA 以内，排查针孔、微裂纹隐患。同时经过卷边、冲压成型工艺验证，确保罐体加工后涂层不开裂、不起泡、不脱落，适配约 24 个月常规储存周期。可服务于坚果、五谷杂粮、调味品、果酱、食用油等多类食品铁罐定制，也可按需求适配外贸订单的食品接触相关法规，实现安全、耐蚀、保护食品风味多重效果。

白酒铁桶、散酒铁罐、食用油铁罐、啤酒桶、食品铁盒、礼品铁罐、茶叶铁盒、月饼礼盒马口铁、保健品铁盒、五谷杂粮铁罐、种子铁罐、化肥铁罐等全品类食品级金属包装

Hot sale worldwide! Professionally customized high-quality tinplate 5L beer keg, 3L party bucket, 10L party bucket | Wine barrel, Bag in box wine barrel, Wine tin barrel,Sunflower oil tin, Olive oil tin, Factory direct supply

The inner walls of food cans from Liaocheng Changyi Can‑Making mainly adopt food‑grade organic coatings of epoxy‑phenolic, polyester and vinyl types. A dense protective layer is formed between the tinplate substrate and food to prevent direct contact between the metal substrate and contents. All cans comply with mandatory domestic food‑contact standards and are suitable for direct food holding.

Products strictly follow national standards for metal articles and coatings for food contact. Each batch undergoes food‑safety testing by third‑party institutions to ensure non‑toxicity and odorlessness. The overall migration is strictly controlled at ≤10 mg/dm². Migrations of heavy metals including lead and cadmium, as well as bisphenol‑A migration, meet national limit values to avoid risks of harmful‑substance leaching.

Materials vary greatly in pH value, oil and sugar content, leading to distinct requirements for coating corrosion resistance. Changyi Can‑Making matches dedicated internal‑coating solutions according to customers’ actual contents. For oil‑based products such as edible oil, high‑oil‑resistance formulated coatings are selected to resist swelling and ageing caused by long‑term oil immersion. For acidic food like jams and fruit cans, modified acid‑resistant internal coatings are applied to withstand organic‑acid corrosion and reduce metal‑ion leaching. For high‑sugar products such as honey and syrup, anti‑glycation and low‑adhesion coatings are used to prevent coating degradation under high‑temperature storage and extend can service life.

Full‑process quality control is implemented in production. Raw‑material verification is performed upon coating incoming. Baking temperature and time are controlled during tin‑printing and coating processes. Coating‑integrity tests are carried out for every finished batch, with average defect current kept below 15 mA to detect pinholes and micro‑cracks. Validated by curling and stamping forming processes, coatings remain crack‑free, blister‑free and peel‑free after can fabrication, fitting a regular storage cycle of around 24 months. Custom metal food cans are available for nuts, grains, seasonings, jams, edible oil and more. Food‑contact regulations for export orders can also be adapted on demand to achieve combined benefits of safety, corrosion resistance and food‑flavor preservation.

可以做专色印刷吗？金色银色能做吗？Can spot‑color printing be done? Can…

可以提供设计服务吗？Can you provide design services?

■