Qu\u1ea7n \u00e1o b\u1ecb co l\u1ea1i khi b\u1ecb ng\u00e2m n\u01b0\u1edbc l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng l\u00e0m ng\u01b0\u1eddi ta \u0111au \u0111\u1ea7u. Khi d\u00f9ng v\u1ea3i l\u00f3t ho\u1eb7c ch\u1ec9 may b\u1ecb co nhi\u1ec1u khi ng\u00e2m n\u01b0\u1edbc s\u1ebd l\u00e0m cho qu\u1ea7n \u00e1o sau khi gi\u1eb7t b\u1eb1ng n\u01b0\u1edbc, b\u1ec1 m\u1eb7t qu\u1ea7n \u00e1o b\u1ecb nh\u0103n nh\u00fam, bi\u1ebfn d\u1ea1ng, th\u1eadt kh\u00f3 nh\u00ecn. N\u1ebfu v\u1ea3i ngo\u00e0i l\u1ea1i b\u1ecb co ng\u00f3t nhi\u1ec1u th\u00ec qu\u1ea7n \u00e1o s\u1ebd nh\u1ecf l\u1ea1i sau khi gi\u1eb7t.<\/p>\n\n\n\n
Nguy\u00ean nh\u00e2n qu\u1ea7n \u00e1o b\u1ecb co l\u1ea1i khi ng\u00e2m n\u01b0\u1edbc c\u00f3 nhi\u1ec1u. Tr\u01b0\u1edbc h\u1ebft \u0111i\u1ec1u \u0111\u00f3 li\u00ean quan \u0111\u1ebfn c\u1ea5u tr\u00fac v\u00e0 t\u00ednh ch\u1ea5t c\u1ee7a s\u1ee3i d\u1ec7t. V\u00ed d\u1ee5 lo\u1ea1i s\u1ee3i d\u1ec7t l\u00e0 len (l\u00f4ng c\u1eebu) d\u1ec5 b\u1ecb co khi ng\u00e2m n\u01b0\u1edbc, sau khi \u0111\u00e3 b\u1ecb co th\u00ec l\u1ea1i r\u1ea5t kh\u00f3 ph\u1ee5c h\u1ed3i nguy\u00ean tr\u1ea1ng. \u0110i\u1ec1u \u0111\u00f3 ch\u00ednh do \u1edf s\u1ee3i l\u00f4ng c\u1eebu c\u00f3 c\u00e1c v\u1ea3y nh\u1ecf h\u01b0\u1edbng ng\u01b0\u1ee3c chi\u1ec1u nhau khi c\u00f3 c\u00e1c chuy\u1ec3n \u0111\u1ed9ng t\u01b0\u01a1ng \u0111\u1ed1i g\u00e2y ra ma s\u00e1t c\u1ee7a c\u00e1c s\u1ee3i d\u1ec7t v\u1edbi nhau. N\u00ean v\u1edbi lo\u1ea1i s\u1ee3i d\u1ec7t b\u1eb1ng l\u00f4ng c\u1eebu n\u00ean ch\u1ecdn c\u00e1ch gi\u1eb7t kh\u00f4, x\u1eed l\u00fd b\u1eb1ng dung m\u00f4i gi\u1eb7t kh\u00f4, ch\u1ec9 c\u1ea7n ph\u01a1i, \u0111\u1eadp. N\u1ebfu c\u1ea7n gi\u1eb7t b\u1eb1ng n\u01b0\u1edbc, ph\u1ea3i d\u00f9ng ch\u1ea5t t\u1ea9y r\u1eeda chuy\u00ean d\u00f9ng cho s\u1ee3i d\u1ec7t len, c\u00f3 ch\u1ea5t ch\u1ed1ng co n\u01b0\u1edbc th\u00edch h\u1ee3p. S\u1ee3i v\u1ea3i b\u00f4ng, s\u1ee3i nh\u00e2n t\u1ea1o c\u00f3 t\u00ednh co n\u01b0\u1edbc do trong ph\u00e2n t\u1eed c\u1ee7a v\u1eadt li\u1ec7u s\u1ee3i c\u00f3 c\u00e1c nh\u00f3m \u01b0a n\u01b0\u1edbc. C\u00e1c ph\u00e2n t\u1eed trong v\u1eadt li\u1ec7u s\u1ee3i n\u00e0y th\u01b0\u1eddng s\u1eafp x\u1ebfp \u1edf tr\u1ea1ng th\u00e1i x\u1ed1p, khe tr\u1ed1ng gi\u1eefa c\u00e1c ph\u00e2n t\u1eed l\u1edbn, c\u00e1c ph\u00e2n t\u1eed n\u01b0\u1edbc d\u1ec5 d\u00e0ng xen v\u00e0o c\u00e1c khe h\u1edf. Khi c\u00f3 ph\u00e2n t\u1eed n\u01b0\u1edbc l\u1ecdt v\u00e0o khe h\u1edf, s\u1ebd c\u00f3 s\u1ef1 n\u1edf to d\u1ecdc theo chi\u1ec1u d\u1ecdc c\u1ee7a v\u1eadt li\u1ec7u s\u1ee3i l\u00e0m cho s\u1ee3i s\u1ebd to ra v\u1ec1 chi\u1ec1u ngang v\u00e0 \u0111\u1ed9 d\u00e0i l\u1ea1i ng\u1eafn l\u1ea1i. V\u00ec v\u1eady v\u1edbi c\u00e1c lo\u1ea1i s\u1ee3i n\u00e0y khi ng\u1ea5m n\u01b0\u1edbc s\u1ebd b\u1ecb c\u1ee9ng v\u00e0 v\u1ea3i tr\u1edf n\u00ean d\u00e0y h\u01a1n. Sau khi \u0111\u1ec3 kh\u00f4 xu\u1ea5t hi\u1ec7n s\u1ef1 co ng\u1eafn r\u00f5 r\u1ec7t. V\u00ec th\u1ebf n\u00ean t\u1ec9 l\u1ec7 co n\u01b0\u1edbc c\u1ee7a s\u1ee3i v\u1ea3i v\u00e0 s\u1ee3i nh\u00e2n t\u1ea1o (v\u00ed d\u1ee5 s\u1ee3i visco) t\u01b0\u01a1ng \u0111\u1ed1i l\u1edbn.<\/p>\n\n\n\n
S\u1ef1 co do n\u01b0\u1edbc c\u1ee7a c\u00e1c lo\u1ea1i s\u1ee3i c\u00f2n c\u00f3 m\u1ed9t nguy\u00ean nh\u00e2n kh\u00e1c li\u00ean quan \u0111\u1ebfn qu\u00e1 tr\u00ecnh k\u00e9o s\u1ee3i v\u1edbi c\u00e1c lo\u1ea1i v\u1ea3i, trong c\u00e1c qu\u00e1 tr\u00ecnh k\u00e9o s\u1ee3i, d\u1ec7t v\u1ea3i, nhu\u1ed9m m\u00e0u th\u01b0\u1eddng ph\u1ea3i qua m\u1ed9t s\u1ed1 tr\u1ea1ng th\u00e1i b\u1ecb k\u00e9o c\u0103ng, b\u1ecb \u00e9p n\u00ean c\u00f3 bi\u1ebfn d\u1ea1ng. C\u00e1c s\u1ef1 bi\u1ebfn d\u1ea1ng trong tr\u1ea1ng th\u00e1i kh\u00f4 th\u00ec v\u1eabn gi\u1eef \u1ed5n \u0111\u1ecbnh. Trong qu\u00e1 tr\u00ecnh gi\u1eb7t b\u1eb1ng n\u01b0\u1edbc, s\u1ee3i v\u1ea3i, s\u1ee3i t\u01a1 b\u1ecb th\u1ea5m \u01b0\u1edbt, b\u1ecb t\u00e1c d\u1ee5ng c\u1ee7a nhi\u1ec7t, s\u1ef1 bi\u1ebfn d\u1ea1ng nhanh ch\u00f3ng \u0111\u01b0\u1ee3c ph\u1ee5c h\u1ed3i nh\u01b0 c\u0169, do \u0111\u00f3 m\u00e0 v\u1ea3i, l\u1ee5a b\u1ecb co l\u1ea1i khi gi\u1eb7t v\u1edbi n\u01b0\u1edbc.<\/p>\n\n\n\n
C\u00f3 r\u1ea5t nhi\u1ec1u lo\u1ea1i v\u1eadt li\u1ec7u s\u1ee3i d\u1ec7t, m\u1ee9c \u0111\u1ed9 co c\u1ee7a ch\u00fang khi g\u1eb7p n\u01b0\u1edbc c\u0169ng kh\u00e1c nhau. S\u1ee3i nh\u00e2n t\u1ea1o b\u1ecb co nhi\u1ec1u nh\u1ea5t khi g\u1eb7p n\u01b0\u1edbc, v\u1edbi s\u1ee3i visco (s\u1ee3i nh\u00e2n t\u1ea1o) t\u1ec9 l\u1ec7 co n\u01b0\u1edbc c\u00f3 th\u1ec3 \u0111\u1ebfn 10%. S\u1ee3i v\u1ea3i s\u1ee3i lanh c\u00f3 \u0111\u1ed9 co n\u01b0\u1edbc 3 – 5%. S\u1ee3i terilong, s\u1ee3i polypropylen c\u00f3 t\u1ec9 l\u1ec7 co n\u01b0\u1edbc l\u00e0 0,5 – 1%. Do \u0111\u00f3 c\u00f3 th\u1ec3 th\u1ea5y s\u1ee3i t\u1ed5ng h\u1ee3p so v\u1edbi c\u00e1c lo\u1ea1i s\u1ee3i \u01b0a n\u01b0\u1edbc th\u00ec c\u00f3 \u0111\u1ed9 co n\u01b0\u1edbc nh\u1ecf h\u01a1n nhi\u1ec1u.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: S\u1ef1 co khi g\u1eb7p n\u01b0\u1edbc; V\u1eadt li\u1ec7u s\u1ee3i d\u1ec7t.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
Qu\u1ea7n \u00e1o b\u1ecb co l\u1ea1i khi b\u1ecb ng\u00e2m n\u01b0\u1edbc l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng l\u00e0m ng\u01b0\u1eddi ta \u0111au \u0111\u1ea7u. Khi d\u00f9ng v\u1ea3i l\u00f3t ho\u1eb7c ch\u1ec9 may b\u1ecb co nhi\u1ec1u khi ng\u00e2m n\u01b0\u1edbc s\u1ebd l\u00e0m cho qu\u1ea7n \u00e1o sau khi gi\u1eb7t b\u1eb1ng n\u01b0\u1edbc, b\u1ec1 m\u1eb7t qu\u1ea7n \u00e1o b\u1ecb nh\u0103n nh\u00fam, bi\u1ebfn d\u1ea1ng, th\u1eadt kh\u00f3 nh\u00ecn. N\u1ebfu v\u1ea3i ngo\u00e0i […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[8,15],"tags":[],"class_list":["post-8028","post","type-post","status-publish","format-standard","hentry","category-hoa-hoc","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8028","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=8028"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8028\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=8028"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=8028"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=8028"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}