{"id":118522,"date":"2023-04-21T18:24:04","date_gmt":"2023-04-22T01:24:04","guid":{"rendered":"https:\/\/www.pandasilk.com\/why-is-silk-so-warm\/"},"modified":"2025-01-15T10:46:28","modified_gmt":"2025-01-15T18:46:28","slug":"why-is-silk-so-warm","status":"publish","type":"post","link":"https:\/\/www.pandasilk.com\/cs\/why-is-silk-so-warm\/","title":{"rendered":"Hedv\u00e1b\u00ed h\u0159eje: Tajemstv\u00ed tepla p\u0159\u00edrodn\u00edho vl\u00e1kna"},"content":{"rendered":"

Hedv\u00e1b\u00ed je po stalet\u00ed cen\u011bn\u00e9 pro svou jemnost a lesk, ale tak\u00e9 pro svou schopnost h\u0159\u00e1t. Co p\u0159esn\u011b stoj\u00ed za touto tepelnou vlastnost\u00ed, kter\u00e1 z hedv\u00e1b\u00ed d\u011bl\u00e1 ide\u00e1ln\u00ed materi\u00e1l pro oble\u010den\u00ed do chladn\u011bj\u0161\u00edho po\u010das\u00ed? V tomto \u010dl\u00e1nku se pono\u0159\u00edme do v\u011bdy za h\u0159ejivost\u00ed hedv\u00e1b\u00ed a prozkoum\u00e1me faktory, kter\u00e9 ovliv\u0148uj\u00ed jeho izola\u010dn\u00ed vlastnosti.<\/p>\n

Struktura hedv\u00e1bn\u00edho vl\u00e1kna<\/h3>\n

Hedv\u00e1bn\u00e9 vl\u00e1kno m\u00e1 komplexn\u00ed strukturu, kter\u00e1 hraje kl\u00ed\u010dovou roli v jeho tepeln\u00e9 izolaci. Vl\u00e1kno se skl\u00e1d\u00e1 z proteinu fibroinu, kter\u00fd vytv\u00e1\u0159\u00ed troj\u00faheln\u00edkov\u00fd prizmatick\u00fd tvar. Tento tvar umo\u017e\u0148uje odr\u00e1\u017eet sv\u011btlo, co\u017e hedv\u00e1b\u00ed dod\u00e1v\u00e1 charakteristick\u00fd lesk, ale z\u00e1rove\u0148 p\u0159isp\u00edv\u00e1 k zachycov\u00e1n\u00ed vzduchu.<\/p>\n

Zachycov\u00e1n\u00ed vzduchu<\/h3>\n

Zachycen\u00fd vzduch je kl\u00ed\u010dov\u00fdm faktorem v tepeln\u00e9 izolaci. Hedv\u00e1bn\u00e9 vl\u00e1kno, d\u00edky sv\u00e9 struktu\u0159e a zp\u016fsobu tkan\u00ed, vytv\u00e1\u0159\u00ed mezi vl\u00e1kny mal\u00e9 vzduchov\u00e9 kapsy. Vzduch je \u0161patn\u00fd vodi\u010d tepla, a proto tyto vzduchov\u00e9 kapsy funguj\u00ed jako izola\u010dn\u00ed vrstva, kter\u00e1 br\u00e1n\u00ed \u00faniku tepla z t\u011bla a z\u00e1rove\u0148 chr\u00e1n\u00ed p\u0159ed chladem zven\u010d\u00ed.<\/p>\n

Vlhkost a termoregulace<\/h3>\n

Hedv\u00e1b\u00ed m\u00e1 vynikaj\u00edc\u00ed schopnost absorbovat vlhkost. Dok\u00e1\u017ee pojmout a\u017e 30% sv\u00e9 hmotnosti ve vod\u011b, ani\u017e by se c\u00edtilo mokr\u00e9. Tato vlastnost je d\u016fle\u017eit\u00e1 pro termoregulaci, proto\u017ee absorbovan\u00e1 vlhkost (pot) se postupn\u011b odpa\u0159uje, \u010d\u00edm\u017e ochlazuje t\u011blo v teplej\u0161\u00edm prost\u0159ed\u00ed. V chladn\u011bj\u0161\u00edm po\u010das\u00ed pak hedv\u00e1b\u00ed pom\u00e1h\u00e1 udr\u017eovat t\u011blesn\u00e9 teplo d\u00edky v\u00fd\u0161e zm\u00edn\u011bn\u00fdm izola\u010dn\u00edm vlastnostem.<\/p>\n

Tkan\u00ed a hustota<\/h3>\n

Zp\u016fsob tkan\u00ed hedv\u00e1b\u00ed ovliv\u0148uje jeho h\u0159ejivost. Hust\u011bji tkan\u00e9 hedv\u00e1b\u00ed, nap\u0159\u00edklad sat\u00e9n, m\u00e1 men\u0161\u00ed vzduchov\u00e9 kapsy a proto h\u0159eje m\u00e9n\u011b ne\u017e hedv\u00e1b\u00ed s voln\u011bj\u0161\u00ed vazbou.<\/p>\n\n\n\n\n\n\n\n
Typ tkan\u00ed<\/th>\nHustota<\/th>\nH\u0159ejivost<\/th>\n<\/tr>\n<\/thead>\n
Sat\u00e9n<\/td>\nVysok\u00e1<\/td>\nNi\u017e\u0161\u00ed<\/td>\n<\/tr>\n
Habotai<\/td>\nSt\u0159edn\u00ed<\/td>\nSt\u0159edn\u00ed<\/td>\n<\/tr>\n
Krepov\u00fd hedv\u00e1b\u00ed<\/td>\nNi\u017e\u0161\u00ed<\/td>\nVy\u0161\u0161\u00ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Srovn\u00e1n\u00ed s jin\u00fdmi materi\u00e1ly<\/h3>\n

Pro lep\u0161\u00ed ilustraci si porovnejme tepeln\u00e9 vlastnosti hedv\u00e1b\u00ed s vlnou a bavlnou:<\/p>\n\n\n\n\n\n\n\n
Materi\u00e1l<\/th>\nIzolace<\/th>\nPrody\u0161nost<\/th>\nVlhkost<\/th>\n<\/tr>\n<\/thead>\n
Hedv\u00e1b\u00ed<\/td>\nSt\u0159edn\u00ed<\/td>\nVysok\u00e1<\/td>\nVysok\u00e1<\/td>\n<\/tr>\n
Vlna<\/td>\nVysok\u00e1<\/td>\nSt\u0159edn\u00ed<\/td>\nVysok\u00e1<\/td>\n<\/tr>\n
Bavlna<\/td>\nNi\u017e\u0161\u00ed<\/td>\nSt\u0159edn\u00ed<\/td>\nSt\u0159edn\u00ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Jak vid\u00edme, hedv\u00e1b\u00ed nab\u00edz\u00ed vyv\u00e1\u017eenou kombinaci izolace, prody\u0161nosti a schopnosti absorbovat vlhkost.<\/p>\n

Vliv p\u00e9\u010de o hedv\u00e1b\u00ed<\/h3>\n

Spr\u00e1vn\u00e1 p\u00e9\u010de o hedv\u00e1b\u00ed je d\u016fle\u017eit\u00e1 pro zachov\u00e1n\u00ed jeho tepeln\u00fdch vlastnost\u00ed. Agresivn\u00ed pran\u00ed a su\u0161en\u00ed m\u016f\u017ee po\u0161kodit strukturu vl\u00e1kna a sn\u00ed\u017eit jeho schopnost zachycovat vzduch, co\u017e vede ke ztr\u00e1t\u011b h\u0159ejivosti.<\/p>\n

Z\u00e1v\u011brem lze \u0159\u00edci, \u017ee h\u0159ejivost hedv\u00e1b\u00ed je v\u00fdsledkem komplexn\u00ed souhry faktor\u016f, v\u010detn\u011b struktury vl\u00e1kna, schopnosti zachycovat vzduch, termoregula\u010dn\u00edch vlastnost\u00ed a zp\u016fsobu tkan\u00ed. Vhodnou volbou typu hedv\u00e1b\u00ed a spr\u00e1vnou p\u00e9\u010d\u00ed si m\u016f\u017eete zajistit komfortn\u00ed teplo i v chladn\u011bj\u0161\u00edm po\u010das\u00ed.<\/p>\n","protected":false},"excerpt":{"rendered":"

Hedv\u00e1b\u00ed je po stalet\u00ed cen\u011bn\u00e9 pro svou jemnost a lesk, ale tak\u00e9 pro svou schopnost h\u0159\u00e1t. Co p\u0159esn\u011b stoj\u00ed za touto tepelnou vlastnost\u00ed, kter\u00e1 z hedv\u00e1b\u00ed d\u011bl\u00e1 ide\u00e1ln\u00ed materi\u00e1l pro oble\u010den\u00ed do chladn\u011bj\u0161\u00edho po\u010das\u00ed? V tomto \u010dl\u00e1nku se pono\u0159\u00edme do v\u011bdy za h\u0159ejivost\u00ed hedv\u00e1b\u00ed a prozkoum\u00e1me faktory, kter\u00e9 ovliv\u0148uj\u00ed jeho izola\u010dn\u00ed vlastnosti. Struktura hedv\u00e1bn\u00edho vl\u00e1kna<\/p>\n","protected":false},"author":1,"featured_media":5570,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37890],"tags":[],"class_list":["post-118522","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-silk-benefits-cs","prodpage-classic"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/posts\/118522","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=118522"}],"version-history":[{"count":0,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/posts\/118522\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/media\/5570"}],"wp:attachment":[{"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/media?parent=118522"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/categories?post=118522"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pandasilk.com\/cs\/wp-json\/wp\/v2\/tags?post=118522"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}