{"id":122290,"date":"2021-07-24T09:58:08","date_gmt":"2021-07-24T16:58:08","guid":{"rendered":"https:\/\/www.pandasilk.com\/overview-of-silk-cocoon\/"},"modified":"2025-01-15T10:41:04","modified_gmt":"2025-01-15T18:41:04","slug":"overview-of-silk-cocoon","status":"publish","type":"post","link":"https:\/\/www.pandasilk.com\/cs\/overview-of-silk-cocoon\/","title":{"rendered":"Tajemstv\u00ed hedv\u00e1bn\u00e9ho kokonu: Od vl\u00e1kna k l\u00e1tce"},"content":{"rendered":"

Hedv\u00e1bn\u00fd kokon, fascinuj\u00edc\u00ed v\u00fdtvor p\u0159\u00edrody, p\u0159edstavuje ochrann\u00fd obal pro kuklu bource moru\u0161ov\u00e9ho (Bombyx mori) b\u011bhem jeho prom\u011bny z larvy v dosp\u011bl\u00e9ho mot\u00fdla. Tento zd\u00e1nliv\u011b k\u0159ehk\u00fd \u00fatvar skr\u00fdv\u00e1 komplexn\u00ed strukturu a slo\u017een\u00ed, kter\u00e9 mu prop\u016fj\u010duj\u00ed unik\u00e1tn\u00ed vlastnosti a \u010din\u00ed z n\u011bj cenn\u00fd zdroj suroviny pro v\u00fdrobu hedv\u00e1b\u00ed.<\/p>\n

Struktura kokonu<\/h3>\n

Kokon je tvo\u0159en jedn\u00edm souvisl\u00fdm vl\u00e1knem surov\u00e9ho hedv\u00e1b\u00ed, kter\u00e9 bource moru\u0161ov\u00e9ho vylu\u010duje ze snovac\u00edch \u017el\u00e1z. Toto vl\u00e1kno, slo\u017een\u00e9 p\u0159ev\u00e1\u017en\u011b z protein\u016f fibroinu a sericinu, se na vzduchu tuhne a vytv\u00e1\u0159\u00ed pevnou, ale pru\u017enou strukturu. D\u00e9lka vl\u00e1kna v jednom kokonu se m\u016f\u017ee pohybovat od 300 do 900 metr\u016f, a v n\u011bkter\u00fdch p\u0159\u00edpadech i v\u00edce.<\/p>\n

Slo\u017een\u00ed hedv\u00e1bn\u00e9ho vl\u00e1kna<\/h3>\n

Vl\u00e1kno se skl\u00e1d\u00e1 ze dvou hlavn\u00edch protein\u016f:<\/p>\n\n\n\n\n\n\n
Protein<\/th>\nFunkce<\/th>\n<\/tr>\n<\/thead>\n
Fibroin<\/td>\nZaji\u0161\u0165uje pevnost a pru\u017enost vl\u00e1kna<\/td>\n<\/tr>\n
Sericin<\/td>\nLepiv\u00e1 slo\u017eka, kter\u00e1 dr\u017e\u00ed vl\u00e1kna pohromad\u011b a tvo\u0159\u00ed ochrann\u00fd obal<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Krom\u011b t\u011bchto protein\u016f obsahuje hedv\u00e1bn\u00e9 vl\u00e1kno i mal\u00e9 mno\u017estv\u00ed vosk\u016f, miner\u00e1l\u016f a pigment\u016f, kter\u00e9 ovliv\u0148uj\u00ed jeho barvu a lesk.<\/p>\n

Tvary a velikosti kokon\u016f<\/h3>\n

Kokony se mohou li\u0161it tvarem i velikost\u00ed v z\u00e1vislosti na druhu bource moru\u0161ov\u00e9ho a podm\u00ednk\u00e1ch prost\u0159ed\u00ed. Nej\u010dast\u011bji se setk\u00e1v\u00e1me s ov\u00e1ln\u00fdmi nebo kulat\u00fdmi kokony, ale existuj\u00ed i kokony s prot\u00e1hl\u00fdm, \u010di dokonce hranat\u00fdm tvarem. Velikost kokonu se obvykle pohybuje od 2 do 5 centimetr\u016f na d\u00e9lku a od 1 do 3 centimetr\u016f na \u0161\u00ed\u0159ku.<\/p>\n

Zpracov\u00e1n\u00ed kokon\u016f<\/h3>\n

Pro z\u00edsk\u00e1n\u00ed hedv\u00e1bn\u00e9ho vl\u00e1kna se kokony sb\u00edraj\u00ed p\u0159ed vyl\u00edhnut\u00edm mot\u00fdla. N\u00e1sledn\u011b se zpracov\u00e1vaj\u00ed za tepla, aby se rozpustil sericin a uvolnila se jednotliv\u00e1 vl\u00e1kna. Tato vl\u00e1kna se pak sp\u0159\u00e1daj\u00ed do hedv\u00e1bn\u00e9 p\u0159\u00edze, kter\u00e1 se pou\u017e\u00edv\u00e1 k v\u00fdrob\u011b tkanin.<\/p>\n

Vyu\u017eit\u00ed kokon\u016f<\/h3>\n

Prim\u00e1rn\u00edm vyu\u017eit\u00edm kokon\u016f je samoz\u0159ejm\u011b v\u00fdroba hedv\u00e1b\u00ed. Hedv\u00e1bn\u00e9 tkaniny jsou cen\u011bny pro svou jemnost, lesk a termoregula\u010dn\u00ed vlastnosti. Krom\u011b textiln\u00edho pr\u016fmyslu nach\u00e1zej\u00ed kokony uplatn\u011bn\u00ed i v kosmetice a medic\u00edn\u011b. Sericin, obsa\u017een\u00fd v kokonu, m\u00e1 hydrata\u010dn\u00ed a regenera\u010dn\u00ed \u00fa\u010dinky na poko\u017eku.<\/p>\n

Hedv\u00e1bn\u00fd kokon, zd\u00e1nliv\u011b nen\u00e1padn\u00fd v\u00fdtvor bource moru\u0161ov\u00e9ho, je d\u016fkazem geniality p\u0159\u00edrody. Jeho unik\u00e1tn\u00ed struktura a slo\u017een\u00ed ho p\u0159edur\u010duj\u00ed k \u0161irok\u00e9mu spektru vyu\u017eit\u00ed, od tradi\u010dn\u00ed v\u00fdroby luxusn\u00edch tkanin a\u017e po modern\u00ed aplikace v kosmetice a medic\u00edn\u011b. Jeho hodnota a v\u00fdznam pro lidstvo p\u0159etrv\u00e1vaj\u00ed po stalet\u00ed a i nad\u00e1le fascinuj\u00ed svou komplexnost\u00ed a eleganc\u00ed.<\/p>\n","protected":false},"excerpt":{"rendered":"

Hedv\u00e1bn\u00fd kokon, fascinuj\u00edc\u00ed v\u00fdtvor p\u0159\u00edrody, p\u0159edstavuje ochrann\u00fd obal pro kuklu bource moru\u0161ov\u00e9ho (Bombyx mori) b\u011bhem jeho prom\u011bny z larvy v dosp\u011bl\u00e9ho mot\u00fdla. Tento zd\u00e1nliv\u011b k\u0159ehk\u00fd \u00fatvar skr\u00fdv\u00e1 komplexn\u00ed strukturu a slo\u017een\u00ed, kter\u00e9 mu prop\u016fj\u010duj\u00ed unik\u00e1tn\u00ed vlastnosti a \u010din\u00ed z n\u011bj cenn\u00fd zdroj suroviny pro v\u00fdrobu hedv\u00e1b\u00ed. Struktura kokonu Kokon je tvo\u0159en jedn\u00edm souvisl\u00fdm vl\u00e1knem surov\u00e9ho<\/p>\n","protected":false},"author":1,"featured_media":75812,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37831],"tags":[],"class_list":["post-122290","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sericulture-cs","prodpage-classic"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/posts\/122290","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/comments?post=122290"}],"version-history":[{"count":0,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/posts\/122290\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/media\/75812"}],"wp:attachment":[{"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/media?parent=122290"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/categories?post=122290"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/tags?post=122290"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}