Clean Protective Clothing: A Comprehensive Analysis of Purchase Guide, Usage Regulations, and Industry Applications

 

Clean protective clothing is the core protective equipment for ensuring clean rooms or dust-free environments. Its core function is to reduce the pollution of sensitive environments (such as electronics, pharmaceuticals, bioengineering, etc.) by particles, dandruff, and static electricity generated by the human body. The following provides comprehensive guidance from aspects such as classification standards, purchase key points, usage regulations, and industry applications.

 

I. Core Characteristics and Industry Applications of Clean Protective Clothing

1. Materials and Performance

Clean protective clothing is woven from a mixture of polyester filaments and conductive fibers to achieve dual functions of dust prevention and static electricity prevention. The density of conductive fibers directly affects the protective effect. For example:

 - 5mm striped conductive silk: Suitable for Class 10000 clean rooms;

 - 5mm grid conductive silk: Suitable for Class 1000 clean rooms;

 - 2.5mm grid conductive silk: Suitable for Class 100 clean rooms.

The surface charge of the work - clothes should be controlled below 0.6 micro - coulombs per piece, and the charge density should be less than 7 micro - coulombs per square meter to minimize electrostatic adsorption.

 

2. Industry Coverage

Clean protective clothing is widely used in the following fields:

 - Electronics manufacturing: To prevent electrostatic damage to precision components;

 - Pharmaceutical production: To avoid microbial contamination of the sterile environment;

 - Food processing: To block human impurities from mixing into the production line;

 - Aerospace: To meet the requirements of high - precision assembly environments.

 

II. Classification and Purchase Standards of Clean Protective Clothing

1. Style Selection

 - One - piece (four - piece/three - piece suit): Suitable for scenarios with a cleanliness level of Class 1000 or higher to achieve full - body sealing;

 - Separated suit: Used in areas with low cleanliness requirements for easy putting on, taking off, and partial replacement.

 

2. Compliance Requirements

It must meet national mandatory standards, including:

 - Flame retardancy: The after - flame time of the fabric should be ≤ 5 seconds, and there should be no melting or dripping;

 - Corrosion resistance: It should be resistant to cleaning by strong acids, strong alkalis, and organic solvents;

 - Durability: It should be able to withstand high - pressure sterilization and high - frequency cleaning.

 

III. Usage and Maintenance Regulations

1. Putting - on Process

 - Order: Head → Upper garment → Trousers → Shoe covers → Gloves;

 - Inspection: Ensure that there are no damages to the seams and no breaks in the conductive fibers.

 

2. Cleaning Requirements

 - Equipment: Do not use household washing machines. Industrial - grade cleaning equipment with no dead - corners should be selected;

 - Frequency: In high - risk areas, clean it once a day. In medium - and low - risk areas, clean it 2 - 3 times a week;

 - Drying: Dry it at a high temperature of over 60°C to ensure the inactivation of microorganisms.

 

3. Scrap Standards

Replace it immediately in the following situations:

 - The surface charge exceeds the limit;

 - More than 10% of the conductive fibers are broken;

 - There are irreparable damages to the seams or fabric.

 

IV. Common Misunderstandings and Risk Avoidance

1. Wrong Selection

 - Using low - density conductive silk in high - grade clean rooms, resulting in particle leakage;

 - Using ordinary dust - proof clothing instead of clean clothing and ignoring the static electricity control index.

 

2. Neglect in Maintenance

 - Using the same cleaning equipment for clean shoes and protective clothing, increasing the risk of cross - contamination;

 - Ignoring the regular detection of surface charge, which leads to the gradual failure of the protective performance.