Protective mask film processing technology
A processing technology and protective mask technology, which is applied in the field of protective mask film processing technology, can solve problems such as affecting use and obstructing sight, and achieve the effects of good performance, avoiding defective products, and improving quality
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Publication Date
- 2021-01-15
- Estimated Expiration
- Not applicable · inactive patent
Abstract
Description
technical field
[0001] The invention belongs to the related technical field of protective mask film, and in particular relates to a protective mask film processing technology. Background technique
[0002] Droplet transmission, that is, airborne droplet transmission, is one mode of airborne transmission. The pathogen is coughed, sneezed, and the secretions and droplets discharged from the conversation by the source of infection, so that the susceptible person is inhaled and infected. Epidemic meningitis, scarlet fever, pertussis, influenza, measles and other diseases are transmitted through this method. Generally, droplet transmission is only possible when close contact with the source of infection is possible, and it is relatively safe to be more than 1 meter away from the source of infection. Because, without the help of external conditions (such as wind), the possibility of spraying droplets beyond two meters is almost impossible. Therefore, when blocking droplets, it i...
Examples
Embodiment Construction
[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0042] The invention provides a technical solution:
[0043] A protective mask film processing technology, the process includes material preparation, feeding, pre-crystallization, drying, extrusion, filtration, cooling casting, stretching and anti-fog experiments, the materials in the preparation include air-to-ethylene glycol, terephthalate Formic acid and hydrophilic acrylic copolymer resin, the feeding process is carried out by feeding the conveyor, the pre-crystallization is carried out by the crystallizer, the drying process is...