一次性外卖打包盒中的船型纸盒，因形似小船的敞口设计成为餐饮外卖的常用选择，其制作工艺与材料特性共同决定了实用性与环保性。这种纸盒既需满足盛装食物（如炸鸡、薯条、沙拉）的基本功能，又要兼顾便携、防漏与可降解需求，在快餐外卖领域占据重要地位，其设计细节直接影响使用体验与环境友好性。

　　The boat shaped paper box in disposable takeaway packaging boxes has become a common choice for catering takeaway due to its open design resembling a small boat. Its production process and material characteristics jointly determine its practicality and environmental friendliness. This type of cardboard box not only needs to meet the basic function of holding food (such as fried chicken, French fries, salads), but also needs to be portable, leak proof, and biodegradable. It occupies an important position in the fast food delivery field, and its design details directly affect the user experience and environmental friendliness.

　　船型纸盒的制作流程围绕材料选择与结构成型展开，需平衡成本与性能。原材料以食品级卡纸为核心，通常选用 250-400g/m 的白卡纸或牛皮卡纸，这类纸张挺度高（挺度值≥50mNm），能支撑盒体形状且不易变形，同时具有一定耐油性（未覆膜的牛皮卡纸可耐受轻度油脂渗透）。部分针对含汤汁的食物（如咖喱饭、麻辣烫），会在卡纸表面覆一层薄薄的 PLA 可降解膜，膜厚度控制在 10-15μm，既增强防漏性，又保持可降解特性，避免传统 PE 膜造成的环境负担。

　　The production process of ship shaped paper boxes revolves around material selection and structural forming, requiring a balance between cost and performance. The raw material is food grade cardboard as the core, usually using 250-400g/m white cardboard or cowhide cardboard. This type of paper has high stiffness (stiffness value ≥ 50mNm), can support the shape of the box without deformation, and has a certain oil resistance (uncoated cowhide cardboard can withstand mild oil penetration). Some foods containing soup (such as curry rice and Spicy Hot Pot) will be coated with a thin layer of PLA degradable film on the surface of the cardboard, with the film thickness controlled at 10-15 μ m, which not only enhances leak resistance, but also maintains the degradable characteristics, avoiding the environmental burden caused by traditional PE film.

　　制作工艺主要包括模切、压痕、折叠三步。模切环节通过定制钢刀模具将卡纸切割成预设展开形状，边缘需光滑无毛刺（避免划伤手部），同时在折叠位置压出深度 0.3-0.5mm 的压痕，确保折叠时折线笔直、盒体方正。折叠过程可手动或自动化完成，自动化生产线通过机械臂沿压痕折叠，使盒体两侧形成船舷状挡板，高度通常为 3-5cm，能防止食物掉落，底部设计为平面或微凹结构（增强放置稳定性）。部分船型纸盒会在两侧添加折叠式提手，提手与盒体连接处需压制加强筋，确保能承受至少 500g 的重量（约两盒米饭的重量）而不撕裂。

　　The production process mainly includes three steps: die-cutting, creasing, and folding. The die-cutting process uses a customized steel knife mold to cut the cardboard into a predetermined unfolded shape, with smooth and burr free edges (to avoid scratching hands). At the same time, a depth of 0.3-0.5mm indentation is pressed at the folding position to ensure that the folding line is straight and the box body is square. The folding process can be completed manually or automatically. The automated production line uses a robotic arm to fold along the indentation, forming ship side shaped baffles on both sides of the box. The height is usually 3-5cm, which can prevent food from falling off. The bottom is designed as a flat or micro concave structure (to enhance placement stability). Some ship shaped paper boxes will add folding handles on both sides, and the connection between the handles and the box body needs to be reinforced with compression ribs to ensure that it can withstand a weight of at least 500g (about the weight of two boxes of rice) without tearing.

　　船型纸盒的结构特性使其适配多种外卖场景，展现出独特实用性。敞口设计方便消费者直接取用食物，无需打开盒盖，适合快餐、小吃类食品（如汉堡、炸鸡块），且散热性优于密封盒（可减少食物因闷热变软）。两侧高挡板形成的 “船舷” 能阻挡油脂飞溅，即使食物带有少量汤汁（如糖醋类菜肴），也能减少运输过程中的渗漏风险，挡板内侧可印刷容量刻度（如 “500ml”“700ml”），方便商家控制盛装量。盒体底部的防滑纹路（通过压花工艺实现）能增加与桌面的摩擦力，减少外卖配送时的滑动，尤其适合电动车配送过程中的颠簸场景。

　　The structural characteristics of the ship shaped cardboard box make it suitable for various takeout scenarios and demonstrate unique practicality. The open design facilitates consumers to directly access food without opening the box cover, making it suitable for fast food and snack foods (such as hamburgers and fried chicken pieces), and has better heat dissipation than sealed boxes (which can reduce food softening due to stuffiness). The "ship's side" formed by the high baffles on both sides can prevent oil splashing, even if the food contains a small amount of soup (such as sweet and sour dishes), it can reduce the risk of leakage during transportation. The inner side of the baffle can be printed with capacity scales (such as "500ml" and "700ml"), making it convenient for merchants to control the amount of filling. The anti slip pattern at the bottom of the box (achieved through embossing technology) can increase friction with the tabletop, reduce sliding during takeaway delivery, and is particularly suitable for bumpy scenarios during electric vehicle delivery.

　　材料特性赋予船型纸盒环保与安全优势，符合现代消费趋势。采用的卡纸多为原木浆或回收纸浆制成，其中回收纸浆占比可达 30%-50%，且不含荧光增白剂、重金属等有害物质，符合食品接触材料安全标准，高温食物（如刚出锅的炸鸡，温度约 80℃）盛装时不会释放异味或有害物质。在自然环境中，未覆膜的船型纸盒可在 3-6 个月内自然降解，即使是覆 PLA 膜的款式，也能在工业堆肥条件下 180 天内完全降解，相比塑料打包盒更易被环境吸收，减少 “白色污染”。此外，纸质材料可回收再利用，使用后的纸盒经分类回收，能重新制成纸浆循环利用，降低资源消耗。

　　The material properties endow ship shaped paper boxes with environmental and safety advantages, which are in line with modern consumer trends. The cardboard used is mostly made from raw wood pulp or recycled pulp, with recycled pulp accounting for up to 30% -50%. It does not contain harmful substances such as fluorescent whitening agents and heavy metals, and meets the safety standards for food contact materials. High temperature foods (such as freshly cooked fried chicken at a temperature of about 80 ℃) will not release odors or harmful substances when stored. In natural environments, uncoated ship shaped paper boxes can naturally degrade within 3-6 months, and even styles coated with PLA film can completely degrade within 180 days under industrial composting conditions. Compared to plastic packaging boxes, they are more easily absorbed by the environment and reduce "white pollution". In addition, paper materials can be recycled and reused. After use, paper boxes can be sorted and recycled to make pulp for recycling, reducing resource consumption.

　　性能短板与改进设计共同构成船型纸盒的实际应用表现。未覆膜的纸盒耐水性有限，若长时间接触汤汁（超过 30 分钟），底部可能因吸水变软，因此部分产品会在底部采用双层卡纸结构，内层添加疏水涂层（如植物蜡涂层），提升耐水时长至 1 小时以上。低温环境下（如冬季），纸质材料易因受潮变得脆硬，折叠处可能出现开裂，改进方案是在纸浆中添加少量柔韧性纤维（如麻纤维），提升低温抗裂性。针对不同食物特性，船型纸盒有多种规格（长度 15-25cm，宽度 10-18cm），小规格适合单人份小吃，大规格可容纳多人分享的拼盘，满足多样化外卖需求。

　　The performance shortcomings and improved design together constitute the practical application performance of ship shaped paper boxes. The water resistance of uncoated cardboard boxes is limited. If they are exposed to soup for a long time (more than 30 minutes), the bottom may become soft due to water absorption. Therefore, some products will use a double-layer cardboard structure at the bottom, with a hydrophobic coating (such as plant wax coating) added to the inner layer to improve water resistance for more than 1 hour. In low-temperature environments (such as winter), paper materials are prone to become brittle and hard due to moisture, and may crack at folds. The improvement plan is to add a small amount of flexible fibers (such as hemp fibers) to the pulp to enhance low-temperature crack resistance. There are various sizes of boat shaped paper boxes (15-25cm in length and 10-18cm in width) for different food characteristics. Small sizes are suitable for single person snacks, while large sizes can accommodate multi person shared platters, meeting diverse takeaway needs.

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