It has been ascertained that it is due to the yellowing of individual surface fibrils of the linen fabric that have dehydrated and oxidized without external substances being put on. | Se ha podido comprobar que ésta es debida al tono amarillento adquirido por las fibras superficiales del tejido de lino, que se deshidrataron y oxidaron sin la colaboración de sustancias externas. |
