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HOW VOCS COULD PUT YOUR PRODUCT AT RISK
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The Definition of Volatile Organic Compounds (VOCs) VOCs are defined as organic compounds having a vapor pressure of 0.01 kPa or more at 20˚C, or having a corresponding volatility under the particular conditions of use. VOCs released into the environment can become contaminants and cause severe environmental and health hazards. VOCs in the Textile and Footwear Industry During the manufacturing process of footwear and textiles, VOCs are common solvents used as cleaners, primers, adhesives and paints. Certain textile products, for instance, carpets, curtains, upholstery, clothing, bedding, leather products and footwear are often treated with chemicals for greater strength, permanent press, fire-retardancy, water and dirt repellence that may contain harmful substances such as formaldehyde or emit certain VOCs such as hydrocarbons – benzene, toluene, xylene. VOCs can be released continuously from products while you are using them and can also accumulate up to a large amount while they are in storage; the degree of release depends on the environmental conditions. Potential Sources of VOC Emissions in Textile and Footwear Products Based on our experimental findings, VOCs can be emitted from different materials such as textiles, leather, plastics, rubber and adhesives. Formaldehyde, benzene, toluene, xylene, acetone, phenol and tetrachloroethylene are all VOCs that could feasibly be emitted from these materials. Health Concerns Relating to VOCs The effects on health caused by VOCs depend on the level and length of exposure. VOCs can cause eye and respiratory tract irritation, headaches, nausea, dizziness, and skin irritation. Long-term or high levels of VOC exposure can cause permanent damage to various areas of the body, such as the lungs, kidneys, liver, and nervous system. Some VOCs, such as benzene and styrene, are classified as human carcinogens. Environmental Concern Relating to VOCs VOCs released into the environment can become soil and groundwater contaminants. VOC vapors escaping into the air also contribute to air pollution. Photochemical smog is the chemical reaction between sunlight, nitrogen oxides and VOCs in the atmosphere leaving airborne particles and ground-level ozone which can damage leafy plants, irritate our breathing systems and create a haze over the landscape. Identifying and Quantifying VOC Content in your Products SGS offers a wide range of VOC testing services to suit your product at different production stages, including textile chemicals, raw materials and finished products. Textile chemicals: Solvent Extraction Raw materials: Headspace Method Finished products: Chamber Method |
