Production of EVA first aid kits: Full process analysis from raw materials to finished products
In today’s medical supplies market, EVA first aid kits are widely popular because of their lightness, durability and strong functionality. Whether it is outdoor adventures, sports events or daily first aid scenarios, EVA first aid kits can provide reliable protection. However, for many international wholesale buyers, understanding the production process of EVA first aid kits is the key to choosing high-quality suppliers.
1. Raw material procurement and preparation
The main material of EVA first aid kits is ethylene-vinyl acetate copolymer (EVA), which is a material with excellent softness, elasticity and chemical stability. When purchasing raw materials, suppliers need to ensure that the quality of EVA materials meets international standards, such as SGS, CE and other certifications. In addition, other auxiliary materials such as fabrics, linings, zippers, Velcro, printing inks, etc. need to be purchased.
1. Selection of EVA materials
The quality of EVA materials directly affects the performance of first aid kits. High-quality EVA materials have good impact resistance, low temperature resistance and waterproofness, which can ensure that the first aid kit can be used normally in harsh environments. When purchasing, suppliers usually require raw material suppliers to provide physical property test reports of materials, including density, hardness, tensile strength and other indicators.
2. Fabric and lining
The fabric and lining of first aid kits usually need to have wear-resistant, waterproof and antibacterial properties. The fabric can choose high-strength materials such as nylon and polyester, while the lining is mostly made of soft non-woven fabrics or polyester fibers to protect first aid supplies from damage.
3. Auxiliary materials
The quality of auxiliary materials such as zippers and Velcro is also crucial. High-quality zippers should be smooth and durable, while Velcro needs to be highly sticky and easy to tear. In addition, printing inks need to meet environmental protection standards to avoid harm to the human body and the environment.
2. Design and development
Before producing EVA first aid kits, the design link is essential. The design team needs to carry out detailed design planning based on customer needs, combined with the use scenarios and functional requirements of the first aid kits.
1. Functional design
The design of the first aid kit needs to fully consider its functional requirements. For example, the first aid kit needs to have enough space to accommodate various first aid supplies, such as bandages, gauze, hemostat, tweezers, etc. At the same time, reasonable partitions and pockets need to be designed so that the required items can be found quickly.
2. Structural design
The structural design of the first aid kit needs to ensure its durability and stability. For example, the thickness of the bag body, the firmness of the stitching, and the installation position of the zipper all need to be carefully designed. In addition, the portability of the first aid kit, such as the design of the shoulder straps and the weight of the bag body, also needs to be considered.
3. Appearance design
Appearance design is one of the important factors to attract customers. The design team needs to design a beautiful and practical appearance based on the preferences of the target market and customer groups. For example, different colors, patterns and brand logos can be selected.
3. Production process
The production process of EVA first aid kits includes multiple links, and each link requires strict quality control to ensure the quality of the final product.
1. Lamination
Lamination is the process of combining the fabric, lining and EVA material. First, the EVA material is heated and softened, and then the fabric and lining are pasted on both sides of the EVA material. This step needs to ensure the firmness and flatness of the fit to avoid bubbles or delamination.
2. Cutting
Cutting is to cut the laminated materials into the required shape and size according to the design drawings. The precision of the cutting directly affects the appearance and dimensional stability of the first aid kit. During the cutting process, professional cutting equipment such as laser cutting machines or CNC cutting machines are usually used to ensure the accuracy of cutting.
3. Hot Pressing
Hot Pressing is to put the cut materials into a mold and form them by high temperature and high pressure. This step requires precise control of temperature and pressure to ensure that the first aid kit has a regular shape and accurate size after forming. For example, too high temperature may cause the material to deform, while insufficient pressure will affect the forming effect.
4. Sewing
Sewing is the process of sewing the parts of the formed first aid kit together. The quality of sewing directly affects the durability and appearance of the first aid kit. During the sewing process, high-quality sewing thread needs to be used and the firmness and uniformity of the sewing need to be ensured. For example, for the edge part of the first aid kit, double stitching is required to increase its strength.
5. Quality inspection
Quality inspection is one of the most critical links in the production process. After each production link, strict quality inspection is required to ensure that the quality of the product meets the standards. For example, in the bonding link, it is necessary to check the firmness and flatness of the bonding; in the cutting link, it is necessary to check the accuracy of cutting; in the sewing link, it is necessary to check the quality of the stitching.
6. Packaging and shipment
After passing the quality inspection, the first aid kit will enter the packaging link. The packaging needs to ensure that the product is not damaged during transportation. Plastic film, paper box or carton is usually used for packaging, and the relevant information of the product is marked on the packaging. Finally, according to the customer’s order requirements, the product is shipped.
Post time: Jul-07-2025