Carlton, N. P., Ormond, R. B., Joines, J. A., Morton-Aslanis, J., & Barker, R. L. (2020), In Performance of Protective Clothing and Equipment: Innovative Solutions to Evolving Challenges (pp. 18–30). https://doi.org/10.1520/stp162420190090
Smith, M. M. C., Carlton, N. P., & Ormond, R. B. (2020), In Performance of Protective Clothing and Equipment: Innovative Solutions to Evolving Challenges (pp. 114–130). https://doi.org/10.1520/stp162420190091
Development of Protocol for Residual Antiviral Activity on Textile Substrates
Sponsor: Goldshield Technologies
Start Date: 1/11/21
End Date: 6/10/21
The survival rate of viruses, including SARS-CoV-2 on environmental surfaces varies from minutes up to three days. Studies highlight the role of such surfaces in the chain of transmission of the viral pathogens, and consequently in epidemics and pandemics. There is little evidence about the influence of soft surfaces, textiles, in cross-contamination. Based on literature, it appears that viable human coronavirus, specifically SARS-CoV-2, may persist on textiles for up to two days in some circumstances. Most studies so far have focused on hard surfaces but, considering the complexity of textile materials due to their type and varied ways of construction, those findings cannot necessarily be applied to soft materials. In their current form, these textiles can host and spread bioaerosols, allergens, bacteria, and viruses, and can promote cross contamination. In addition, the reusable textile-based personal protective equipment (PPE) and patient care textiles found in healthcare are never characterized nor modeled to quantify their contribution to the development and spread of pathogens. The rise of SARS-CoV-2 and other viruses has created a demand for anti-viral technologies that can mitigate the risk by simply creating an antimicrobial/antiviral bio-barrier on textiles to prevent microbes and viruses from attaching to them. This initial pilot study will focus on the persistence of viral contamination on a subset of textile surfaces. More specifically, we will first focus on general textiles such as linen sheeting materials that are commonly used in healthcare settings. Additional materials, such as those used in masks and other PPE will be included in follow-on studies. The objective of this pilot study is to develop a proof-of-concept protocol aimed at evaluating the persistence of viral contamination on textile surfaces.
Insecticide Analysis Research Proposal for Elevate Textiles/ITG Burlington
Sponsor: Elevate Textiles, Inc.
Start Date: 6/29/20
End Date: 6/30/21
Elevate Textiles/ITG Burlington has developed a finish for the Army Combat Uniform (ACU) to provide protection from biting insects. To evaluate the efficacy of this finish, they have first identified the need to provide validated analytical methods and testing for the extraction and analysis of the active ingredients. This analysis would then be used on freshly finished fabric to determine percent add-on of the ingredients as well as on fabric following laundering cycles to evaluate the durability to wash. The fabrics are treated with a combination of insect repellent (Oil of Lemon Eucalyptus) and insecticide (Permethrin) chemistries. For this research project, the Textile Protection and Comfort Center (TPACC) at NC State University will develop and validate the extraction and analysis methods required to analyze the chosen insecticides/repellents simultaneously. Following method validation, materials from plant trials will be evaluated before and after laundering.
US Dept. of Homeland Security (DHS)(10/01/20 - 8/30/22)
Mitigating Exposure to Hazardous and Toxic Particulates and Vapors: Evaluating and Improving PPE and Skin Contamination on WUI/Wildland Fires
Sponsor: US Dept. of Homeland Security (DHS)
Start Date: 10/01/20
End Date: 8/30/22
Firefighting continues to be among the most hazardous yet least studied professions in terms of occupational exposures and risk â€“ even less is known about wildland firefighters. This project will assess current PPE usage and pathways of occupational exposures and use this information to create mitigation and risk reducing protocols and decontamination procedures with the aim of ameliorating occupational exposures in wildland firefighters. Long term, the protocols and procedures developed through this program assessment will contribute to reducing the cancer burden in the firefighter population . The goals are to: 1) provide an improved understanding and assessment of wildland/WUI PPE for hazardous particulate and vapor protection, 2) develop mitigation measures and decontamination protocols to reduce exposure, and 3) provide long-term training programs to facilitate dissemination and encourage adoption by fire departments throughout the U.S. We will deliver a program that provides meaningful improvements in the health and safety of our firefighters and improving preparedness and community resilience.
Develop and Document Methods for Effective Cleaning of Military Firefightersâ€™ Personal Protective Equipment (PPE) to Mitigate Exposure to Carcinogens and Other Hazardous Materials
Sponsor: US Army
Start Date: 4/20/20
End Date: 10/19/20
Our scope of work will be to conduct initial evaluation of the cleaning and decontamination performance of TDA's experimental formulation. TPACC will use our swatch contamination, decontamination and/or wash procedures followed by extraction/analysis using our advanced analytical procedures.
US Dept. of Homeland Security (DHS)(9/18/19 - 9/17/21)
Assessment, Improvement, and Application of Multi-Hazard System-Level Performance Evaluations of First Responder Ensembles
Sponsor: US Dept. of Homeland Security (DHS)
Start Date: 9/18/19
End Date: 9/17/21
Purpose & Aims: Critically review and assess NFPA standards and improve system-level testing methods by investigating application and relevance to fire service and responder communities. Current material-level tests outlined in NFPA standards are useful for characterizing fabrics used in protective garments; they do not capture the full system-level performance for user wear during various tasks. Full examination and range of system-level evaluations will be conducted and aid in developing an updated testing platform which firefighters can use to assess their own ensemble and support development of a new NFPA standard. Relevance: Full system-level tests in NFPA standards are impactful in assessing protective clothing as worn by the responder; however, some of these methods lack comprehensive evaluation for its application in integration and interoperability. This research will provide the basis and support for a new NFPA standard for system-level evaluations of the responder in addition to providing the responder community with testing protocols that can be conducted at their respective station for assessment. Methods: Material and system level methods will be implemented to research, examine, and assess current test methods utilized in NFPA standards. NCSUâ€™s capabilities with manikin systems, in-depth knowledge of users and standards, and expertise in human wear testing will provide unprecedented evaluations specific to protective systems worn against a multitude of encountered hazards. Anticipated Outcomes: This research will contribute to improve firefighter protection and promote education through the creation and design of test methods implemented in a new NFPA standard focused on integration and interoperability of protective ensembles.
Development of Protective Ensemble(s) for DSM Dyneema Technicians
Sponsor: DSM Dyneema
Start Date: 9/03/18
End Date: 6/30/20
To aid DSM Dyneema in better protecting their technicians, the Textile Protection and Comfort Center (TPACC) at NC State University will conduct a focused research effort to address the incompatibility of the ensemble elements and inadequate balance of protection and comfort. The initial research project will consist of three phases: 1) Literature review and assessment of hazards for respiratory and dermal exposure to production solvent as well as thermal exposure hazards, 2) Survey of PPE market for existing protective ensembles or elements that meet the needs of the technicians, 3) Preparation and delivery of final report. The proposed duration of the research will be four (4) months. Anticipated period of performance is September 2018 â€“ December 2018, pending official start date.
Federal Emergency Management Agency (FEMA)(9/14/18 - 9/13/21)
Enhanced Cleaning to Reduce Firefighter Exposure to Carcinogens
Sponsor: Federal Emergency Management Agency (FEMA)
Start Date: 9/14/18
End Date: 9/13/21
Purpose & Aims: This research will develop deep-cleaning methods to remove residual smoke & vapor carcinogens present in turnout material components after conventional washing. Relevance: Current NFPA 1851 advanced washing procedures remove 40% or less of potentially carcinogenic contaminants found in turnout gear after firefighting smoke exposure. After wash contaminants can migrate from turnout suits & transfer to skin; semi-volatile compounds can off-gas, exposing firefighters to low-level sustained doses of toxic vapors. Better cleaning methods, to extract residual smoke & fire ground contaminants, at reasonable cost & with less damage to gear, will reduce firefighter cancer risks. Methods: 1) Determine the level of accumulated carcinogens in retired smoke-exposed turnout gear; assess potential transfer of carcinogens via skin contact & potential for off gassing of volatile organic compounds (VOCs). 2) Contaminate representative combinations of new turnout outer shell, moisture barrier and thermal liner materials with controlled doses of target chemicals; clean with CO2 & enhanced conventional processes; analyze for residual contaminants. 3) Use deep-clean wash procedures to launder new structural uniforms, gloves & hoods contaminated with known carcinogenic compound levels; following up to 10 cleaning cycles compare carcinogen content levels found in gear laundered using current NFPA 1851 cleaning procedures for cleaning effectiveness, cost, & turnout durability. Anticipated Outcomes: Provide fire service community with new hazard assessments for residual contaminants in smoke-exposed legacy gear; identify next-generation cleaning procedures to remove more contaminants from turnout suits; recommend procedures to relevant NFPA technical committees, fire departments, laundries, and Independent Service Providers (ISPs).
US Dept. of Homeland Security (DHS)(7/28/16 - 12/31/19)
Revolutionizing the Protective Hood: Particulate Protection, Cleaning Effectiveness, and Training Demonstration
Sponsor: US Dept. of Homeland Security (DHS)
Start Date: 7/28/16
End Date: 12/31/19
Purpose & Aims: To enhance the safety of firefighters by developing a systems-level methodology for evaluating protective hood materials and designs for protection against toxic smoke particles while providing acceptable wear comfort and thermal protection. The trade-offs associated with particulate and flash fire protection and heat stress will be assessed and used as basis for identifying protective hoods systems that will provide the firefighter with barrier protection while also minimizing thermal strain. An inexpensive field-level particulate demonstration will be developed in conjunction Boston Fire Department that will serve as a training and awareness tool that can be adopted at fire departments across the country. Relevance: Analyses of fire ground exposures and cancers in firefighters have exposed limitations in current hoods. The NFPA 1971 standard on firefighter PPE does not have requirements in place to evaluate particulate protection or thermal heat stress associated with hoods. This research will provide the technical basis for performance criteria and evaluation methodologies for hoods as well as their durability and cleaning effectiveness. Methods: Material and product level methods will be utilized to study the effects of particulate resistant materials and innovative designs on the ability of the protective system to mitigate exposure to smoke particulates while providing breathability to reduce heat stress. NCSUâ€™s unique suite of instrumented upper body manikin systems will provide unprecedented evaluation levels specific to protective hoods that will be validated against live-fire field assessments. Anticipated Outcomes: This research will contribute to improve firefighter protection from dermal exposures to smoke contaminants; balance thermal protective, ergonomic, and stability requirements by providing validated methodologies and performance criteria that will serve as a basis for optimizing the protective performance of hood constructions that manufacturers offer to the firefighter.
Analysis Of Odorous Compounds In Athletic Shoes With Antimicrobial Properties
Sponsor: adidas International, Inc.
Start Date: 8/01/15
End Date: 2/28/17
For the development of a new footwear product, Adidas has determined the need to have a quantitative assessment of the efficacy of an antimicrobial treatment as opposed to a standard subjective human odor panel. In addition to measuring the amounts of common odorous compounds present in treated versus untreated footwear samples, the research should also address the human perception of odors that are present. For this research project, the Textile Protection and Comfort Center (TPACC) at NC State University will develop analytical methods to collect, extract, and analyze the common odorous compounds that may be present in the footwear samples after being worn. These analysis methods will then be used to generate a correlation between amount of compound that is present and the human perception of odor intensity.
US Dept. of Homeland Security (DHS)(9/01/15 - 9/30/17)
Smoke and Particulate Resistant Structural Turnout Ensemble
Sponsor: US Dept. of Homeland Security (DHS)
Start Date: 9/01/15
End Date: 9/30/17
The Textile Protection and Comfort Center and LION First Responder PPE, Inc. propose to develop a prototype fire fighter turnout system to enhance protection against smoke and toxic vapors during and after fire suppression. The garment system will meet the current NFPA 1971 Standard on Protective Ensembles for Structural Firefighting and Proximity Firefighting requirements while also providing protection from toxicants present in smoke including particulates, combustion products, and chemicals volatilized within the fire environment. The turnout system will not be engineered solely for improved protective performance but will be designed for improved ergonomics, easy donning and doffing, comfort, high level functionality, commercial practicality, and affordability.
Design of the system will be based on established field testing data and commercial experience to optimize function and fit with an emphasis placed on seams, interfaces, and closures. A systems engineering based approach will be used to conduct the project. Inputs from the DHS FRG, from expert panel members, and the expertise of the project team will be used and weighted to develop proposed system level solutions, balance the performance criteria, and down-select to the optimal design. While the focus will be on interface design and materials, all solutions will be chosen so that they, first and foremost, meet the requirements of NFPA 1971 as well as the applicable parts of the NFPA 1992 and NFPA 1994 Class 3 and/or Class 4 while providing needed comfort, functionality and affordability.