Abstract: Microcapsules for smart textile materials, containing an active product and with reactive groups, with the objective of chemically binding the microcapsules to the fibers. The microcapsules contain active products such as PCM (phase change materials), or can be of controlled release of products such as fragrances, essential oils, antibacterial and others with the objective to add specific functional properties to the textile materials. They can be applied by padding and spraying followed by thermofixation. In case of products such as knitwear the application process can also be by exhaustion process, given that the microcapsules acquire affinity towards the fibers and react with the fibers during the process. The chemical bond of the controlled release microcapsules with the fibers confers them a higher resistance to washing than the existing microcapsules glued to the fabric by printing or padding.
Type:
Grant
Filed:
February 27, 2006
Date of Patent:
March 26, 2013
Assignee:
Devan-Micropolis SA
Inventors:
Jamie Isidoro Naylor Rocha Gomes, Raquel Maria Magalhaes Vaz Vieira, Sandra Maria Pinto Cerqueira Barros
Abstract: The present invention concerns double-walled microcapsules with an outer thermoplastic wall and an application process thereof on substrates, namely textile substrate. The microcapsules are applied to fibers so as to produce a slow release of products such as fragrances, antimicrobial, insecticides, antioxidants, vitamins or they can be used as materials such as thermochromic pigments, that change color when heated, or “phase change materials” (PCM), that convey thermal insulation/control.
Type:
Grant
Filed:
August 26, 2003
Date of Patent:
December 11, 2012
Assignee:
Devan-Micropolis SA
Inventors:
Jaime Isidoro Naylor Da Rocha Gomes, Carlos Joaquim Esteves Lima