Design and production of clean clothes
Production of clean clothes
Making clean clothes should minimize contamination in the clean room. The fabric is cut and seamed first, and the resulting primary edge produces particles if not processed. These edges should be machined in such a way that all primary edges of the fabric should be wrapped, staggered, hot-rolled or laser-cut to prevent wear, and the seams should be double-stitched, bonded, or wrapped with a tape to provide good The barrier, and does not produce fibers, the line should be the line of synthetic continuous filaments. Zippers, clips, and fasteners and shoelaces should not be chipped or worn, and should be resistant to multiple washes, including multiple disinfections if necessary.
General design
Clean clothes should have a large number of specifications to choose from, guaranteed and comfortable. To minimize stagnant contamination, pockets, pleats, pleats, hooks, and many fasteners should be avoided. Elastic or braided cuffs should not catch or shed contaminants and should not accumulate static charges. Clothing closures should be both sealed and comfortable. Other design parameters that should be considered are:
1) zipper material (covered plastic zip fastener), type and location
2) Position and utility of buckle adjuster and waist
3) Construction of the sleeve (built-in or jacket)
4) The form of the collar
5) Ability to put on various shoes and boots
6) Passive or active adjustment of the hood
7) Type and position of the strap on the boot
Dispersion chamber
This is a simulation program that demonstrates the combined effect of the fabric, fabrication, and design of the cleansing garment. The chamber is ventilated with filtered air at a known flow rate, and the person enters the box and acts according to the given routine. Diffused particles or bacteria can be measured. Various garments that need to be evaluated can be compared.
Thermal comfort
When selecting materials for clean clothing, whenever possible, consider the comfort of the person working in the clean room, and the air and moisture penetration of the fabric under consideration will help to determine this. A simple and effective method is to choose between clean clothes made of different fabrics and try on them in a clean room. Get feedback from the people who want to wear clean clothes, which will be valuable for better selection of materials.
The comfort level of the garment can be obtained by using the parameters of the relevant personnel and the environmental parameters, and the requirements for the clean clothes for the specific clean room can be determined. It is necessary to measure the physical activity of a person wearing a personal garment or underwear and a clean room. In addition, the expected average voting index is calculated using the air temperature, speed, interference, average radiant temperature, and humidity in the clean room to arrive at an expected percentage of dissatisfaction. The resulting PPD index represents the percentage of people who may feel too hot under given conditions.