| The textile industry is a very diverse and broad manufacturing sector. With increased global competition, many sectors within the textile industry are increasing production efficiency through technology development and a better trained workforce while working toward pollution prevention. This section provides core reference material that textile manufacturers can use to improve process efficiency and reduce waste generation. |
Date Last Updated: 11/13/2007 |
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Case Studies |
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| Section Title: Amital Spinning Corporation Full Title: Case Studies - A compilation of successful waste reduction projects implemented by NC businesses URL: /01/0056511.pdf Length: 2 pages Date: August 1995 Full Work Author: NC Office of Waste Reduction Abstract: Amital Spinning installed systems to facilitate non-contact cooling water reuse, implemented the use of totes and bulk packaging for raw materials, and requested packaging reduction by suppliers. Section Title: Bloomsburg Mills, Inc. Full Title: Case Studies - A compilation of successful waste reduction projects implemented by NC businesses URL: /01/0056604.pdf Length: 2 pages Date: December 1995 Full Work Author: NC Office of Waste Reduction Abstract: This textile mill implemented a program to implement reusable totes for chemicals and reusable paperboard spools. The facility reduced emissions and solvent usage through the substitution of several dye carriers. The facility also reduced water and energy consumption through the installation of a counterflow washer and automation of its dyeing machines. Section Title: Cleveland Mills Company Full Title: Case Studies - A compilation of successful waste reduction projects implemented by NC businesses URL: /01/0056605.pdf Length: 2 pages Date: December 1995 Full Work Author: NC Office of Waste Reduction Abstract: This mill reduced its formaldehyde emissions through chemicals substitution and switched to a brine system for salt additions in dyeing. Section Title: Craftsmen Fabrics Industries, Inc. Full Title: Case Studies - A compilation of successful waste reduction projects implemented by NC businesses URL: /01/0056512.pdf Length: 2 pages Date: August 1995 Full Work Author: NC Office of Waste Reduction Abstract: This mill that modified its existing dye machine to facilitate variable fill capabilities reducing overall liquor ratios and chemical requirements. The modifications led to a reduction of $0.0383 per pound of cloth. Section Title: Flynt Fabics and Finishing Full Title: Case Studies - A compilation of successful waste reduction projects implemented by NC businesses URL: /01/0056513.pdf Length: 2 pages Date: August 1995 Full Work Author: NC Office of Waste Reduction Abstract: This mill implemented a recycling program, reduced water use through new dyeing and preparation equipment, and reduced the metal content of some dyestuffs. Section Title: Guilford Mills Full Title: Case Studies - A compilation of successful waste reduction projects implemented by NC businesses URL: /01/0056606.pdf Length: 2 pages Date: December 1995 Full Work Author: NC Office of Waste Reduction Abstract: This manufacturer of knit and woven fabrics determined that the majority of VOCs were emitted during heatsetting and printing. VOC emissions were reduced by an average of 67% in 6 plants. Most reductions were accomplished by switching from a solvent based edge gum to a water based adhesive. Section Title: Harriet & Henderson Yarns, Inc Full Title: Case Studies - A compilation of successful waste reduction projects implemented by NC businesses URL: /01/0056514.pdf Length: 2 pages Date: August 1995 Full Work Author: NC Office of Waste Reduction Abstract: This yarn mill implemented a program to sell cotton fiber processing waste to area farmers. Section Title: Hornwood, Inc. Full Title: Case Studies - A compilation of successful waste reduction projects implemented by NC businesses URL: /01/0056515.pdf Length: 1 page Date: August 1995 Full Work Author: NC Office of Waste Reduction Abstract: This knitting and finishing mill reduced waste by over 100 tons per year using a waste reduction team comprised of production line workers. The most financially successful project involved the elimination of Osnaburg fabric used in preventing fabric slippage during dyeing. Hornwood found that slippage could be prevented by using selvage instead. Net saving from the waste team was over $100,000 per year. Section Title: Sara Lee Knit Products Full Title: Case Studies - A compilation of successful waste reduction projects implemented by NC businesses URL: /01/0056607.pdf Length: 2 pages Date: December 1995 Full Work Author: NC Office of Waste Reduction Abstract: This knitting mill installed a 15 gpm nanofilter for dyebath wastewater to generate a reusable brine solution. Section Title: T.S. Designs, Inc. Full Title: Case Studies - A compilation of successful waste reduction projects implemented by NC businesses URL: /01/0056608.pdf Length: 2 pages Date: December 1995 Full Work Author: NC Office of Waste Reduction Abstract: This silk screen printer installed a cleaning agent recovery system on the screen cleaning process and a silver recovery system for the photographic processing waste. The facility also substituted water based adhesive for solvent based adhesive. Section Title: Ti-Caro, Inc. Full Title: Case Studies - A compilation of successful waste reduction projects implemented by NC businesses URL: /01/0056519.pdf Length: 2 pages Date: August 1995 Full Work Author: NC Office of Waste Reduction Abstract: Ti-Caro implemented a recycling, water conservation, and chemical reduction program. Section Title: Westpoint Stevens Full Title: Case Studies - A compilation of successful waste reduction projects implemented by NC businesses URL: /01/0056609.pdf Length: 2 pages Date: December 1995 Full Work Author: NC Office of Waste Reduction Abstract: This mill implemented a recycling program for production and packaging waste. The facility reduced hazardous air pollutant emissions through chemical substitution. The facility switched to low liquor ratio jet dyeing machines. Full Title: Case Study: Bloomsburg Mills, Inc. URL: /07/06108.pdf Length: 2 pages Full Work Author: NC DPPEA Abstract: Bloomsburg Mills has actively pursued waste reduction and recycling throughout its production processes, including chemical substitution of their dye carrier with less hazardous chemcals, reusable bulk chemical storage containers, a recycling program, and process heat and water reuse. Calculations of air emissions, and solid waste reduction and associated cost savings are included. Full Title: Case Study: Cleveland Mills Company URL: /07/06109.pdf Length: 2 pages Full Work Author: NC DPPEA Abstract: Cleveland Mills implemented a waste reduction program, resulting in significant reductions in wastewater releases, air emissions, and solid and hazardous waste streams. This case study includes information on their recycling program, bulk chemical storage and distribution systems, dyeing chemical substitution, wastewater improvement through chemical use optimization and chemical substitution, wastewater treatment system upgrade, and formaldehyde emission reduction through chemical substitution. Calculations of formaldehye, solid waste, and wastewater pollutant reductions are included. Full Title: Case Study: E.I. DuPont de Nemours and Company - Cape Fear Plant URL: /07/06126.pdf Length: 3 pages Full Work Author: NC DPPEA Abstract: DuPont's Cape Fear polyester yarn plant implemented several waste reduction efforts which resulted in significant savings. By changing simple procedures such as sampling, spinning position, and yarn package changes, the facility was able to reduce product waste. Additionally, process modifications eliminated the use of methanol and decresed VOC emissions by lowering process temperatures; waste PET plastic is recycled rather than landfilled; and unused process equipment was turned into a glycol recycling center for duPont. Waste reduced, annual cost savings, and additional activities are included. Full Title: Case Study: Hoechst Celanese Corporation URL: /07/06128.pdf Length: 2 pages Full Work Author: NC DPPEA Abstract: Hoescht Celanese, which produces polyester fibers, has implemented a corporate-wide program to reduce waste and emissions. Projects include the elimination of trichloroethane used for degreasing, implementation of a leak detection and repair program and a recycling program, and process modification to remove toxic compounds from wastewater, distill them, and use them for boiler fuel. Waste reduction and annual savings calculations are included. Full Title: Case Study: Milliken and Co. - Golden Valley Plant URL: /07/06111.pdf Length: 1 page Full Work Author: NC DPPEA Abstract: Milliken implemented an extensive environmental program that eliminated use of extremely hazardous chemicals at the facility, reduced the use of hazardous chemicals, reduced solid waste, and reduced energy consumption. Full Title: Case Study: Renfro Corporation URL: /07/06112.pdf Length: 1 page Full Work Author: NC DPPEA Abstract: A case study describing Renfro's efforts to reduce the sulfur dioxide (SO2) emissions from its boilers with low-sulfur fuel and reduce chlorine bleach usage from its processes. Price savings of chlorine use reduction are included. Full Title: Case Study: Sara Lee Knit Products URL: /07/06113.pdf Length: 3 pages Full Work Author: NC DPPEA Abstract: This case study describes Sara Lee Knit Products Corporation's process modifications to reduce salt, dye, and water usage through process optimization, segregate wastes to allow wastewater reuse, and improve wastewater quality through filtration. Includes annual waste reduction and savings calculations. Full Title: Case Study: Spectrum Dyed Yarns, Inc. URL: /07/06114.pdf Length: 2 pages Full Work Author: NC DPPEA Abstract: By allocating staff time and resources to identifying problems and formulating solutions, Spectrum Dyed Yarns was able to solve their difficulties with inadequate supplies of hot water from their boilers and water from their local systems, and the use of lagoons to meet temperature discharge limits. By implementing extensive process heat reuse programs with heat exchangers and economizers on stacks, Spectrum Dyed Yarns was able to ensure an adequate supply of hot water while decreasing both stack gas temperatures and wastewater temperature. Once this was achieved, they were able to optimize their dyeing procedures, thereby further reducing waster usage. Water usage per pound of yarn dyed, and cost savings calculations are included. Full Title: Case Study: Springs Industries, Inc. URL: /07/06115.pdf Length: 2 pages Full Work Author: NC DPPEA Abstract: This case study describes Springs Industries' efforts to reduce their solid waste generation through reusable chemical storage containers, recycling, reusable shipping pallets, a switch to a non-hazardous parts washing solvent, waste stream segregation and sizing reuse, and process waste reduction through teams and goal setting. Includes annual waste reduction and savings calculations. Full Title: Case Study: Westpoint Stevens URL: /07/06116.pdf Length: 2 pages Full Work Author: NC DPPEA Abstract: This case study describes the pollution prevention programs implemented at Westpoint Stevens' textile facility, including air emissions reduction; boiler fuel change; energy, water, and chemical use optimization; use of bulk chemical storage containers; recycling; and replacing cardboard spinning tubes with reusable and recyclable PVC cones. Additionally, Westpoint Stevens initiated a chemical approval committee to find alternative, less toxic chemicals for use. Calculations of annual waste reductions and savings are included. Section Title: Manufacture of Textiles #6 - Cold Pad Batch Dyring of Cellulosic Fabrics with Fiber Reactive Dyes Full Title: Cleaner Production in the ASIA and Pacific Economic Corporation (APEC) Region URL: /10/09253.htm Date: 1992-93 Full Work Author: Sud, Atul; Fayman, Ian; Knight, John Abstract: Facility uses cold patch dyeing of cellulosic fabrics with fiber reactive dyes to reduce waste and chemical use. Full Title: Manufacture of Chemicals and Chemical Products #31 - Reducing Solvents in a Company that Produces Plastic Coated Textiles URL: /10/09497.htm Date: 1992 Full Work Author: Abrahamsen, Uno; Olsen, Arild; Andersen, Jan Erik Abstract: Produced plastic coated textiles and reduced solvent use. Full Title: Manufacture of Textiles #14 - Enzymatic Bleach Cleanup in Cotton Dyeing URL: /10/09235.htm Date: 1994 Full Work Author: Insitute for Applied Environmental Exonomics Abstract: Plant uses an enzyme to replace a chemical agent (such as thiosulfate) in bleach neutralization leading to reduction in water and energy consumption, Full Title: Manufacture of Textiles #40 - Cleaner Production Measures in Printing and Finishing Operations URL: /10/09357.htm Date: 1992 Full Work Author: Cranston Print Works Company, Toxic Use Reduction Institute Abstract: Uses cleaner production measures in printing and finishing. Full Title: Mastex Industries Reduces Chemical Use In Cloth Cleaning and Dyeing Operations URL: /02/01781.pdf Length: 3 pages Date: November 1995 Full Work Author: MA Office of Technical Assistance Abstract: This case study tells of how this integrated textile manufacturer (weaving, dyeing, and finishing) made several changes in its textile manufacturing process to reduce the use of trisodium phosphate, sodium hydroxide, and sodium nitrate. TSP, previously used in scouring, was completely replaced by sodium carbonate. These reductions cut the company's use of toxic chemicals by more than 20,000 pounds per year, saved it $5,000 in chemical purchases and regulatory fees, and enhanced worker health.. Section Title: Manufacture of Textiles #3 - Environmental Management Improves Product Quality in Wool Scouring Full Title: The Cleaner Production Case Studies Directory EnviroNET Australia URL: /10/09338.htm Full Work Author: Goulburn Wool Scour; Environment Australia Abstract: Facility uses environmental management to improve product quality in wool scouring. Section Title: Manufacture of Textiles #4 - Cleaner Production and Waste Minimization in a Yarn Manufacturing Plant Full Title: The Cleaner Production Case Studies Directory EnviroNET Australia URL: /10/09237.htm Date: 1992 Full Work Author: Environment Australia Abstract: Yarn manufacturing plant uses cleaner production and waste minimization techniques. | |
Fact Sheets |
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| Full Title: Cotton Fiber Processing Waste URL: /01/00013.htm Length: 4 pages Date: June 1995 Full Work Author: NC Office of Waste Reduction Abstract: This fact sheet provides information on reducing the generation of cotton fiber processing wastes. Full Title: Pollution Prevention Tips for Wet-Processing Textile Mills URL: /09/08015.htm Full Work Author: Georgia Pollution Prevention Assistance Section Title: Textile Wet Processing Full Title: Water Efficiency Manual URL: /01/0069203.pdf Length: 9 pages Date: August 1998 Full Work Author: NC Division of Pollution Prevention and Environmental Assistance Abstract: This information is also contained in the water conservation section of Best Management Practices for P2 in the Textile Industry. | |
Articles and Reports |
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| Section Title: Surfactants - A Primer Full Title: America's Textiles International URL: /03/02960.pdf Length: 3 pages Date: August 1998 Section Author: Perkins, Warren S. Abstract: This article is a discussion of the chemistry, classification and behavior of surfactants commonly used in textile manufacturing. The concept of HLB value (hydrophile-lipophile balance) is explained. Section Title: Chemical Screening and Inventory Control Full Title: American Dyestuff Reporter URL: /09/08484.pdf Length: 3 pages Date: June 1987 Section Author: Smith, Brent Abstract: There are two fundamental causes of product variation: raw materials (including substrate), and processing. Wet process/product variation, reduction by incoming chemical screening. Section Title: Color Removal from Textile Plant Effluents Full Title: American Dyestuff Reporter URL: /01/00437.pdf Length: 6 pages Date: April 1996 Section Author: Marmagne, O.; Coste, C. Abstract: This article evaluates the COD and color levels from dyestuffs, along with the removal abilities of different treatment technologies (biological, chemical, filtration and adsorption). A detailed evaluation of these system is provided, as well as the COD contribution of a variety of dye types. Acid, basic, reactive, vat, disperse, direct, mordant, and sulfur dyes are also discussed. Section Title: Dyeing Reactive Dyes Using Less Salt Full Title: American Dyestuff Reporter URL: /03/02346.pdf Length: 3 pages Date: September 1994 Section Author: Anderson, Clyde B. Abstract: This article discusses a computer program used to more accurately develop dye formulations and chemical requirements. Section Title: Improving Computer Control Of Batch Dyeing Operations Full Title: American Dyestuff Reporter URL: /03/02348.pdf Length: 12 pages Date: September 1993 Section Author: Smith, Brent; Lu, Jun Abstract: This paper states that traditional computerized process control has amounted to nothing more than automation of manual methods. Features of these control systems is adherence to predetermined time/temperature profile, one to one strategy, and inability to compensate for uncontrollable factors. Controllers are available off the shelf which are capable of much more. Better control strategies are available using off the shelf hardware. These measure the state of the dyeing (or other) system in real time, compute the estimated final state of the system and make process adjustments on the fly to come to the desired process result. Section Title: Indoor Air Quality and Textiles: An Emerging Issue Full Title: American Dyestuff Reporter URL: /03/02906.pdf Length: 10 pages Date: January 1994 Full Work Author: American Dyestuff Reporter Section Author: Smith, Brent; Bristow, Vikki Abstract: This article reviews some of the university research efforts on indoor air quality issues as related to textile materials. Hazardous ingredient information is provided for topical finishes applied to textile materials. Section Title: Textile Process Wastewater Permits: An Update And Stategies Full Title: American Dyestuff Reporter URL: /03/02347.pdf Length: 5 pages Date: March 1994 Section Author: Leonas, Karen K.; Leonas, Michael L. Abstract: This article discusses the impact of wastewater regulation in the textile industry. Outlines the EPA permitting process. The metal content of fabric is identified as a wastewater discharge compliance issue. Full Title: Critical Parameters - The Warren Project URL: /02/01779.pdf Length: 6 pages Date: 1994 Full Work Author: MA Office of Technical Assistance Section Author: Richard, Paul; McLaughlin, William Abstract: Case study from Warren Massachusetts, a small town with a textile dyeing plant, whose POTW was in serious noncompliance. A Microtox portable analysis of the textile effluent indicated that Alkyl Phenol Ethoxylates (APEs) exacerbated by glauber salt was the source of the toxicity. Dyes with linear chains were substituted for the APEs. However the linear chain appear to be only partially digested at the POTW so additional online tracking at both the POTW and the textile plant was undertaken. Full Title: Identification and Reduction of Pollution Sources in Textile Wet Processing URL: /02/01068.pdf Length: 129 pages Date: 1986 Full Work Author: Smith, Brent Section Author: Smith, Brent Abstract: This document identifies pollutant sources in textile wet processing and suggests some management strategies by which source reduction can be accomplished. Reduction strategies are broadly categorized as either: l Processing Alternatives l Recovery/Recycle/Reuse Examples of source reduction are usually very site-specific; therefore, the application of the ideas presented here must be flexible. In many cases, a commitment to reduction of pollution sources can also lead to cost and quality improvements for a manufacturer. Full Title: Membrane Technology in Textile Operations URL: /04/03269.pdf Length: 14 pages Full Work Author: Woerner, Douglas L. Abstract: Discusses the application of membrane filtration for various textile discharges. Several applications include: 1) Removal of dyestuffs and concentration of salt for reuse in the dyeing operation, 2) BOD Reduction, 3) Recovery of PVA size from desizing, 4) Recovery of water and chemicals from scouring, 5) Recovery of indigo dyestuffs, 6) latex recovery from inishing , and 7)Recovery of water from belt wash in printing operations. Section Title: Land Application of Textile Biosolids: North Carolina's Experience Full Title: P2SC - Pollution Prevention in the Textile Industry URL: /02/01124.pdf Length: 2 pages Date: Fall 1995 Section Author: Wanucha, David J. Abstract: A low-tech discussion of the beneficial reuse of textile wastewater treatment sludge in agriculture. Full Title: Pollution Prevention Studies in the Textile Wet Processing Industry URL: /01/00469.pdf Length: 170 pages Date: May 1995 Full Work Author: Hendrickx, Ilse; Boardman, Gregory D. Abstract: This report focuses on textile processing P2 opportunities in the following areas: raw material control, maintenance, water conservation, chemical optimization/substitution, process modifications, and recycling. Discusses in detail results of four P2 studies: a denim laundry, a fiberglass yarn plant, a cotton dyeing and printing mill, and a nylon finishing plant. Section Title: Salt Requirements Put Pressure On Wet Processing Plants Full Title: Textile World URL: /03/02961.pdf Length: 4 pages Date: August 1994 Section Author: Cook, Fred L. Abstract: This article discusses the importance and role of salinity in textile wet processing, particularly with reactive dyes. Several methods for reducing salt discharge are discussed including membrane filtration for salt recovery and innovation in dye structure to reduce salt requirements. Full Title: The Future of Pollution Prevention - An Alternative to Costly Waste Treatment URL: /01/00386.pdf Length: 16 pages Date: October 1994 Full Work Author: Smith, Brent Abstract: Discusses the general technical needs in various areas of textile operations. Areas include globalization, accurate information and information distribution, major textile wastes of concern, product design and scheduling, emission factors, spin finishes, fibers, dyes, chemical specialties and commodities, fabric formation., wet processing, automation and machine controls, salt, and machine cleaning. Full Title: Toxicity Reduction Evaluations at Textile Mills URL: /03/02855.pdf Length: 8 pages Date: 1999 Full Work Author: Burke, John Abstract: This paper discusses the current toxicity regulations in North Carolina and the activities the North Carolina Division of Pollution Prevention and Environmental Assessment promotes for facilities to maintain toxicity compliance. Full Title: Troubleshooting in Preparation - A Systematic Approach URL: /03/02332.pdf Length: 20 pages Date: 1988 Full Work Author: Rucker, J.W.; Smith, C.B. Abstract: This paper lists the sources for preparation problems in desizing, scouring, bleaching, and mercerization. It discusses the correct procedures for each of the preparation techniques, along with techniques for identifying problems in preparation. Section Title: Potential Water and Energy Savings in Textile Bleaching Full Title: Water Conservation Technology in Textiles - State of the Art URL: /03/02903.pdf Length: 3 pages Date: May 1992 Full Work Author: Hall, David M; Perkins, Warren S.; Warman, James C. Section Author: Evans, Bruce A. Abstract: This article provides energy and water consumption for a three stage open-width bleach range. The processes included in the bleach range are saturators, steamer and J-boxes, washers (desize, caustic, bleach), and dry cans. Techniques for reducing water and energy are provided along with quantity reductions and cost savings. | |
Manuals |
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| Full Title: Best Management Practices for Pollution Prevention in the Textile Industry URL: /02/01099.htm Length: 318 pages Date: September 1996 Full Work Author: Eastern Research Group Abstract: This manual presents the best overall treatment of pollution prevention for the textile industry. Topic areas include design stage planning, operations audits, chemical alternatives, high-extraction/low-carryover process step separations, raw material prescreening, byproduct market development, chemical handling practices, and process control. P2 techniques in specific textile operations are also discussed in the area of fibers, dyes, chemical specialties and commodities, yarn and fabric formation, dyeing, printing, and finishing. Additionally, overcoming barriers to P2 is also discussed in detail. Full Title: Chemistry & Technology of Fabric Preparation & Finishing URL: /06/05815.pdf Length: 268 pages Full Work Author: Tomasino, Charles, Dr. Abstract: This document provide a thorough discussion of the variety of chemicals and processes used for preparing and finishing textile materials. This publication does not cover pollution prevention techniques in great detail but there is source reduction information provided for selected processes and chemistries. More importantly, this document serves as an extremely useful tool for identifying sources of pollutants within textile wet processing operations. Chemicals and processes used in sizing, scouring, bleaching, mercerizing, singeing, durable press finishing, had or softener finishing, repellent finishing, soil-release finishing, flame retardant finishing, anti-pill finishing, and antistatic finishing, and mechanical finishing. Full Title: Color Reduction & Removal Seminar URL: /01/00345.pdf Length: 62 pages Date: June 1998 Full Work Author: NC Division of Pollution Prevention and Environmental Assistance Abstract: Includes color reduction case studies from Flynt Fabrics & Finishing, Americal, Cone Mills, the City of Eden, Sara Lee Knit Products, and Belmont Dyers. Full Title: EPA Office of Compliance Sector Notebook Project - Profile of the Textile Industry URL: /01/00506.pdf Length: 147 pages Date: September 1997 Full Work Author: US Environmental Protection Agency Abstract: This manual provides a general overview of textile industry processes including yarn formation, fabric formation, wet processing, and fabrication. EPA TRI data, compliance history, and major legal actions for the textile industry are provided along with applicable federal statutes and regulations. P2 opportunities for quality control, chemical substitution, process modifications, and recycling are discussed. Full Title: Preliminary Industry Characterization: Fabric Printing, Coating, and Dyeing - DRAFT URL: /01/00166.pdf Length: 85 pages Date: July 1998 Full Work Author: U.S. EPA Abstract: While this manual does not contain P2 information, it is a good source of detailed information regarding Hazardous Air Pollutant emissions sources in the textile industry. | |
Web sites |
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| Full Title: Consortium on Competitiveness for the Apparel, Carpet, and Textile Industries (CCACTI) URL: http://www.fcs.uga.edu/tmi/ccacti/index.html Full Work Author: University of Georgia Section Author: College of Family and Consumer Sciences Full Title: P2Rx Topic Hub™ for Textiles URL: http://wrrc.p2pays.org/p2rx/toc.cfm?hub=446&subsec=7&nav=7& Full Work Author: P2Rx Abstract: The Topic Hub™ for Textiles. This primer is intended as a quick guide to the essential P2 information on textiles, as well as a compilation of pertinent on-line resources. Full Title: The Canadian Pollution Prevention Information Clearinghouse URL: http://www.ec.gc.ca/cppic/en/search.cfm?txtSearchString=textiles Full Work Author: The National Office of Pollution Prevention, Canada Abstract: This site contains a searchable database of pollution prevention information. From the main page, choose the textiles subsection and then search for specific areas of concern. Most documents are available on-line.
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