{"id":745,"date":"2021-12-02T10:22:02","date_gmt":"2021-12-02T10:22:02","guid":{"rendered":"https:\/\/natureduca.com\/aula\/?p=745"},"modified":"2021-12-02T10:22:03","modified_gmt":"2021-12-02T10:22:03","slug":"actividades-ecologicas-aprovechamientos-los-tejidos-ecologicos-1a-parte","status":"publish","type":"post","link":"https:\/\/natureduca.com\/aula\/actividades-ecologicas-aprovechamientos-los-tejidos-ecologicos-1a-parte\/","title":{"rendered":"ACTIVIDADES ECOL\u00d3GICAS – APROVECHAMIENTOS – LOS TEJIDOS ECOL\u00d3GICOS – 1\u00aa PARTE"},"content":{"rendered":"\t\t\t\t
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  1. Introducci\u00f3n<\/a>
  2. Los da\u00f1os al medio ambiente y la salud de las fibras artificiales<\/a>
  3. Los cultivos intensivos<\/a><\/ol>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\n\n\n

    Introducci\u00f3n<\/h2>\n\n\n\n

    Un gran porcentaje de las prendas que vestimos est\u00e1n confeccionadas con fibras artificiales, no en vano el sector textil demanda diariamente en todo el mundo petr\u00f3leo por decenas de miles de barriles, con los que fabricar variadas fibras sint\u00e9ticas (poli\u00e9ster, acr\u00edlicos…).<\/p>\n\n\n\n

    Tambi\u00e9n la celulosa de la madera se utiliza para fabricar la llamada lana artificial (perl\u00f3n) y seda artificial (ray\u00f3n). Igualmente, se confeccionan tejidos con mezclas de fibras naturales y artificiales o a\u00f1adiendo productos qu\u00edmicos, ejemplo de las combinaciones de lana y acr\u00edlicos, o el polialgod\u00f3n (algod\u00f3n al que se le a\u00f1ade una sustancia llamada formalhedido para darle aspecto de siempre planchado).<\/p>\n\n\n\n

    \"
    Un gran porcentaje de las prendas que vestimos est\u00e1n confeccionadas con fibras artificiales subproductos del petr\u00f3leo<\/p>\n\n\n\n

    Los da\u00f1os al medio ambiente y la salud de las fibras artificiales<\/h2>\n\n\n\n

    La fabricaci\u00f3n de fibras artificiales o sint\u00e9ticas tiene aspectos negativos no s\u00f3lo para el medio ambiente, muchas personas acusan problemas de salud derivadas del uso de prendas confeccionadas con ellas. \u00c9stas fibras suelen ser en su mayor\u00eda subproductos del petr\u00f3leo, lo que implica utilizar materias primas no renovables y en un gran despilfarro de energ\u00eda durante el proceso de tratamiento. Adem\u00e1s, no tienen capacidad de biodegradarse, lo que significa permanecer ausentes de las cadenas tr\u00f3ficas durante mucho tiempo debido a su lenta descomposici\u00f3n.<\/p>\n\n\n\n

    Un inconveniente de la fibra sint\u00e9tica es su escasa capacidad para permitir la transpiraci\u00f3n corporal, debido a la compactividad del material que impide absorber la humedad. Esto resulta m\u00e1s evidente cuando hace calor produciendo una sensaci\u00f3n de pegajosidad, y muy especialmente si el tejido est\u00e1 confeccionado con poli\u00e9ster, un pl\u00e1stico muy popular de consistencia blanda y mullida utilizado en prendas de vestir, ropas de cama, moquetas, o como relleno para plumones.<\/p>\n\n\n\n

    Otro material textil sint\u00e9tico es el ray\u00f3n. Se obtiene de la pulpa de la madera de determinados \u00e1rboles como los abetos, y tiene gran aceptaci\u00f3n por sus caracter\u00edsticas que imitan a la seda. Sin embargo, no se libra de los inconvenientes de las fibras artificiales: falta de transpiraci\u00f3n, retenci\u00f3n de la humedad y sudoraci\u00f3n corporal excesiva.<\/p>\n\n\n\n

    \"
    De la pulpa de madera de determinados \u00e1rboles, como el abeto, se sintetizan fibras como el ray\u00f3n o perl\u00f3n<\/p>\n\n\n\n

    Como remate a las desventajas de estas fibras artificiales, cabe citar la relativa a las reacciones que muchas personas presentan a portar prendas fabricadas con estas materias; se considera que alrededor de un 10% muestran alergias a alg\u00fan tipo de fibra sint\u00e9tica. El perl\u00f3n, por ejemplo, que es otra fibra que se obtiene de la celulosa de la madera y que se conoce normalmente como lana de perl\u00f3n o lana artificial, tiene como principal inconveniente que causa dermatitis y otras alergias cut\u00e1neas.<\/p>\n\n\n\n

    Los cultivos intensivos<\/h2>\n\n\n\n

    Algunas fibras naturales no se libran de los inconvenientes de las demandas masivas de materia prima. El algod\u00f3n es una de las plantas cuyo cultivo m\u00e1s se intensific\u00f3 en el mundo. Esta masificaci\u00f3n fuerza a utilizar continuas fumigaciones con plaguicidas, que pueden llegar hasta las 40 sesiones por cultivo, lo que implica introducir en los suelos gran cantidad de sustancias perjudiciales para los ecosistemas ed\u00e1ficos.<\/p>\n\n\n\n

    \"
    \u00cdndice Actividades eco.<\/font><\/a> <\/p>\n","protected":false},"excerpt":{"rendered":"

    Introducci\u00f3n Un gran porcentaje de las prendas que vestimos est\u00e1n confeccionadas con fibras artificiales, no en vano el sector textil demanda diariamente en todo el mundo petr\u00f3leo por decenas de miles de barriles, con los que fabricar variadas fibras sint\u00e9ticas (poli\u00e9ster, acr\u00edlicos…). Tambi\u00e9n la celulosa de la madera se utiliza…<\/p>\n

    Seguir leyendo…<\/i><\/a><\/p>\n","protected":false},"author":3,"featured_media":-1,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","footnotes":""},"categories":[12],"tags":[160,167,57,175,38,174],"class_list":["post-745","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actividades-ecologicas","tag-actividades","tag-aprovechamientos","tag-ecologicas","tag-ecologicos","tag-parte","tag-tejidos"],"yoast_head":"\nACTIVIDADES ECOL\u00d3GICAS - APROVECHAMIENTOS - LOS TEJIDOS ECOL\u00d3GICOS - 1\u00aa PARTE - Aula de Naturaleza educativa<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/natureduca.com\/aula\/actividades-ecologicas-aprovechamientos-los-tejidos-ecologicos-1a-parte\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ACTIVIDADES ECOL\u00d3GICAS - APROVECHAMIENTOS - LOS TEJIDOS ECOL\u00d3GICOS - 1\u00aa PARTE - Aula de Naturaleza educativa\" \/>\n<meta property=\"og:description\" content=\"Introducci\u00f3n Un gran porcentaje de las prendas que vestimos est\u00e1n confeccionadas con fibras artificiales, no en vano el sector textil demanda diariamente en todo el mundo petr\u00f3leo por decenas de miles de barriles, con los que fabricar variadas fibras sint\u00e9ticas (poli\u00e9ster, acr\u00edlicos…). 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Tambi\u00e9n la celulosa de la madera se utiliza... Seguir leyendo...","amp_enabled":true,"_links":{"self":[{"href":"https:\/\/natureduca.com\/aula\/wp-json\/wp\/v2\/posts\/745","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/natureduca.com\/aula\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/natureduca.com\/aula\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/natureduca.com\/aula\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/natureduca.com\/aula\/wp-json\/wp\/v2\/comments?post=745"}],"version-history":[{"count":0,"href":"https:\/\/natureduca.com\/aula\/wp-json\/wp\/v2\/posts\/745\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/natureduca.com\/aula\/wp-json\/"}],"wp:attachment":[{"href":"https:\/\/natureduca.com\/aula\/wp-json\/wp\/v2\/media?parent=745"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/natureduca.com\/aula\/wp-json\/wp\/v2\/categories?post=745"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/natureduca.com\/aula\/wp-json\/wp\/v2\/tags?post=745"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}