Production process of medical masks
Medical masks are generally sterile, of which single-use medical masks are sterile and non-sterile. Other medical masks are sterile products. In addition to the requirement that they should be produced in a 100,000-level sterile clean plant, Air conditioning purification system, purified water system. After entering the factory from raw materials, it needs to undergo mask molding, crimping, trimming, breathing valve welding (if any), earband spot welding, nose bridge line fitting, breathing valve punching (if any), packaging, sterilization, Analysis (EO sterilization) can be completed.
In order to realize the above manufacturing process, full automatic production equipment or semi-automatic production equipment needs to be configured. Fully automatic equipment is integrated, generally one body machine drags two to three ear band machines, from raw material feeding to packaging completion. The semi-automatic equipment needs to be configured one by one according to the above process, including mask forming machine, mask pressing machine, mask trimming machine, breathing valve punching machine, nose bridge line bonding machine, ear band spot welding machine, breathing valve welding machine, etc. .
Merge three layers of non-woven fabric
Disposable medical masks have specific production regulations, at least three layers of non-woven fabrics are used as raw materials, and the production machines are stacked together.
2. Bendable wire (nose clip)
The top of the mask has a bendable wire. In production, the equipment will match and convey the metal wire along one side of the non-woven fabric, and then curl the edge, and then stitch it at the back. When we wear it, as long as we pin the nose clip to the bridge of the nose, we will wear masks tighter.
3. Make the cascade
The main part of the mask is the layered structure shown in the figure below, which is pulled to completely cover the nose and mouth, and the face is not afraid. The cross-section of this laminated structure is so long that it requires a machine folding link. This is the mechanical design shown in the figure below. There are three adjustable bevels. Set a small bevel. Let a large piece of non-woven fabric follow these bevels and gradually narrow down from left to right to form a "folding structure." Come. Then there is a tabletting step to flatten the face of the mask.