{"id":2927,"date":"2026-02-05T01:35:00","date_gmt":"2026-02-05T01:35:00","guid":{"rendered":"https:\/\/www.materialstests.com\/products\/cobb-01-cobb-tester\/"},"modified":"2026-02-05T01:35:00","modified_gmt":"2026-02-05T01:35:00","slug":"cobb-01-cobb-tester","status":"publish","type":"products","link":"https:\/\/www.materialstests.com\/cs\/products\/cobb-01-cobb-tester.html","title":{"rendered":"COBB-01 COBB Tester"},"content":{"rendered":"

1. P\u0159edstaven\u00ed testeru COBB<\/h2>\n

Tester COBB<\/strong>\u00a0se pou\u017e\u00edv\u00e1 k posouzen\u00ed nas\u00e1kavosti pap\u00edru a lepenky prost\u0159ednictv\u00edm\u00a0cobbova zku\u0161ebn\u00ed metoda<\/strong>. Je \u00fa\u010dinn\u00fd p\u0159i ur\u010dov\u00e1n\u00ed velikosti pap\u00edru a absorpce vody na povrchu lepenky, ale nedoporu\u010duje se pou\u017e\u00edvat na z\u00e1kladn\u00ed pap\u00edr nebo embosovan\u00fd pap\u00edr s gram\u00e1\u017e\u00ed ni\u017e\u0161\u00ed ne\u017e 50 g\/m\u00b2, s n\u00edzk\u00fdm stupn\u011bm velikosti nebo s \u010detn\u00fdmi d\u00edrkami. Krom\u011b toho nen\u00ed vhodn\u00fd pro p\u0159esn\u00e9 hodnocen\u00ed nerozm\u011brn\u00e9ho pap\u00edru a lepenky, ani neposkytuje p\u0159esn\u00e9 hodnocen\u00ed psac\u00edho v\u00fdkonu pap\u00edru nebo lepenky.<\/p>\n

Cobb\u016fv tester<\/strong>\u00a0hodnot\u00ed schopnost pap\u00edru nebo lepenky absorbovat vodu. Cobbova hodnota vyjad\u0159uje hmotnost vody absorbovan\u00e9 povrchem kartonu na jednotku plochy, vyj\u00e1d\u0159enou v gramech na metr \u010dtvere\u010dn\u00ed (g\/m\u00b2), za ur\u010dit\u00fdch podm\u00ednek a ve stanoven\u00e9m \u010dasov\u00e9m horizontu.<\/p>\n

Celkov\u00e1 doporu\u010den\u00e1 doba zkou\u0161ky podle mezin\u00e1rodn\u00edch norem pro odstran\u011bn\u00ed p\u0159ebyte\u010dn\u00e9 vody a proveden\u00ed absorpce vody je n\u00e1sleduj\u00edc\u00ed:<\/p>\n

\n\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n
Doporu\u010den\u00e1 doba<\/td>\nMark<\/td>\nDoba odstran\u011bn\u00ed p\u0159ebyte\u010dn\u00e9 vody (S)<\/td>\nDoba do konce absorpce vody (S)<\/td>\n<\/tr>\n
\u00a0(S)<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
30<\/td>\ncobb30<\/td>\n20\u00b11<\/td>\n30\u00b11<\/td>\n<\/tr>\n
60<\/td>\ncobb60<\/td>\n45\u00b11<\/td>\n60\u00b12<\/td>\n<\/tr>\n
120<\/td>\ncobb120<\/td>\n105\u00b12<\/td>\n120\u00b12<\/td>\n<\/tr>\n
300<\/td>\ncobb300<\/td>\n285\u00b12<\/td>\n300\u00b12<\/td>\n<\/tr>\n
1800<\/td>\ncobb1800<\/td>\n1755\uff5e1815<\/td>\nPo odstran\u011bn\u00ed p\u0159ebyte\u010dn\u00e9 vody 15\u00b12<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\"COBB-01<\/p>\n

2. Co je COBB \u0159eza\u010dka vzork\u016f?<\/h2>\n

\u0158eza\u010dka vzork\u016f COBB<\/strong>\u00a0je z\u00e1kladn\u00edm n\u00e1strojem pro zkou\u0161en\u00ed absorpce, kter\u00fd rychle a p\u0159esn\u011b od\u0159ez\u00e1v\u00e1 vzorek s ur\u010denou plochou \u03c6125 mm.Je to razic\u00ed typ vzorkova\u010de a osv\u011bd\u010duje se jako ide\u00e1ln\u00ed p\u0159\u00edstroj pro v\u00fdrobu vlnit\u00e9 lepenky a karton\u016f, v\u00fdzkum, dohled nad kvalitou, kontroly a r\u016fzn\u00e1 dal\u0161\u00ed odd\u011blen\u00ed.<\/p>\n

 <\/p>\n

3. Pro\u010d pot\u0159ebujete tester COBB?<\/h2>\n

Pap\u00edr a lepenka jsou b\u011b\u017en\u00e9 materi\u00e1ly pou\u017e\u00edvan\u00e9 pro ti\u0161t\u011bn\u00fd obsah a jejich absorp\u010dn\u00ed vlastnosti mohou ovlivnit kvalitu tisku. Znalost\u00a0Hodnota Cobb\u00a0<\/strong>pom\u00e1h\u00e1 zajistit, aby vybran\u00e9 materi\u00e1ly byly vhodn\u00e9 pro tisk, a minimalizuje probl\u00e9my spojen\u00e9 s rozmaz\u00e1v\u00e1n\u00edm inkoustu nebo \u0161patnou kvalitou tisku.<\/p>\n

Cobbovo testov\u00e1n\u00ed<\/strong>\u00a0je opat\u0159en\u00ed ke kontrole kvality, kter\u00e9 zaji\u0161\u0165uje, \u017ee materi\u00e1ly spl\u0148uj\u00ed pr\u016fmyslov\u00e9 normy. Materi\u00e1lov\u00ed v\u011bdci vyu\u017e\u00edvaj\u00ed tyto \u00fadaje k optimalizaci slo\u017een\u00ed pap\u00edru a lepenky a p\u0159izp\u016fsobuj\u00ed je pro konkr\u00e9tn\u00ed pou\u017eit\u00ed na z\u00e1klad\u011b jejich vlastnost\u00ed absorpce vody.<\/p>\n

\"COBB-01<\/p>\n

4. V\u00fdhody testeru COBB<\/h2>\n

Vyrobeno z nerezov\u00e9 oceli<\/p>\n

Standardn\u00ed kovov\u00fd v\u00e1lec<\/p>\n

 <\/p>\n

5. Princip testu testeru COBB<\/h2>\n

P\u0159ed proveden\u00edm testu vzorek zva\u017ete. Jakmile se jedna strana vzorku dostane na stanovenou dobu do kontaktu s vodou, odstra\u0148te z vysu\u0161en\u00e9ho vzorku p\u0159ebyte\u010dnou vlhkost a okam\u017eit\u011b jej zva\u017ete. V\u00fdsledky vyj\u00e1d\u0159ete p\u0159\u00edr\u016fstkem hmotnosti na jednotku plochy vzorku m\u011b\u0159en\u00fdm v gramech na metr \u010dtvere\u010dn\u00ed (g\/m\u00b2).<\/p>\n

 <\/p>\n

6. Pou\u017eit\u00ed testeru COBB<\/h2>\n

Cobb\u016fv tester<\/strong>\u00a0se b\u011b\u017en\u011b pou\u017e\u00edv\u00e1 k m\u011b\u0159en\u00ed absorp\u010dn\u00ed schopnosti por\u00e9zn\u00edch materi\u00e1l\u016f, zejm\u00e9na pap\u00edru a lepenky. M\u00e1 z\u00e1sadn\u00ed v\u00fdznam pro posouzen\u00ed schopnosti t\u011bchto materi\u00e1l\u016f absorbovat vodu, co\u017e m\u016f\u017ee m\u00edt vliv na r\u016fzn\u00e9 aplikace, jako je tisk, balen\u00ed a v\u00fdrobky na b\u00e1zi pap\u00edru. Na adrese\u00a0Cobb\u016fv tester<\/strong>\u00a0je zvl\u00e1\u0161t\u011b d\u016fle\u017eit\u00fd pro materi\u00e1ly, u nich\u017e jsou d\u016fle\u017eit\u00e9 vlastnosti absorpce vody a dodr\u017eov\u00e1n\u00ed specifick\u00fdch norem je nezbytn\u00e9 pro kontrolu kvality a optimalizaci v\u00fdkonu.<\/p>\n

\"COBB-01<\/p>\n

7. Specifikace testeru COBB<\/h2>\n
\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n
COBB-01<\/td>\n<\/tr>\n
Testovac\u00ed oblast<\/td>\n100\u00b10,2cm\u00b2<\/td>\n<\/tr>\n
Spot\u0159eba vody<\/td>\n100\u00b15ml<\/td>\n<\/tr>\n
\u0160\u00ed\u0159ka kovov\u00e9ho v\u00e1le\u010dku<\/td>\n200\u00b10,5 mm<\/td>\n<\/tr>\n
Hmotnost kovov\u00e9ho v\u00e1le\u010dku<\/td>\n10\u00b10,5 kg<\/td>\n<\/tr>\n
Rozm\u011br<\/td>\n\uff08396*315*300\uff09mm LWH<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

 <\/p>\n

\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n
\u0158eza\u010dka vzork\u016f COBB<\/td>\n<\/tr>\n
Pr\u016fm\u011br odb\u011bru vzork\u016f<\/td>\n\u00d8125 mm<\/td>\n<\/tr>\n
Chyba v\u00fdb\u011bru vzorku<\/td>\n\u00b10,2 mm<\/td>\n<\/tr>\n
Tlou\u0161\u0165ka odb\u011bru vzork\u016f<\/td>\n\uff080.1\uff5e2.0\uff09mm<\/td>\n<\/tr>\n
Rozm\u011br<\/td>\n(250*280*450) mm D\u00e9lka a v\u00fd\u0161ka<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

8. Standardy testeru COBB<\/h2>\n

GB\/T1540, ISO 535, QB\/T1668, TAPPI T441<\/p>\n

\"COBB-01<\/p>\n

9. Konfigurace testeru COBB:<\/h2>\n

a) Standardn\u00ed konfigurace:\u00a0COBB-01 COBB Tester<\/strong>, Kovov\u00fd v\u00e1lec, ru\u010dn\u00ed<\/p>\n

b) Voliteln\u00e1 konfigurace: Blotovac\u00ed pap\u00edr,\u00a0\u0158ezac\u00ed stroj COBB na vzorky<\/strong><\/p>\n

 <\/p>\n

10. \u010casto kladen\u00e9 ot\u00e1zky testeru COBB<\/h2>\n

Jak\u00e1 je hodnota COBB?<\/strong>
\nCobbova hodnota je vypo\u010dten\u00e1 hmotnost vody absorbovan\u00e9 za ur\u010ditou dobu 1 m\u00b2 pap\u00edru nebo lepenky za ur\u010dit\u00fdch podm\u00ednek.<\/p>\n

Jak\u00e1 je doba absorpce?<\/strong>
\nDoba od za\u010d\u00e1tku kontaktu vody se vzorkem do konce absorpce vody.<\/p>\n

Pro\u010d je test COBB d\u016fle\u017eit\u00fd pro kvalitu pap\u00edru?<\/strong>
\nTest COBB m\u00e1 z\u00e1sadn\u00ed v\u00fdznam pro posouzen\u00ed nas\u00e1kavosti pap\u00edru. Tyto informace jsou z\u00e1sadn\u00ed pro udr\u017een\u00ed kvality tisku, p\u0159edch\u00e1zen\u00ed probl\u00e9m\u016fm, jako je rozmaz\u00e1v\u00e1n\u00ed inkoustu nebo zhor\u0161en\u00e9 standardy tisku, co\u017e je d\u016fle\u017eit\u00e9 zejm\u00e9na p\u0159i v\u00fdrob\u011b vysoce kvalitn\u00edch tiskovin.<\/p>\n

Jak\u00fd kovov\u00fd v\u00e1lec se pou\u017e\u00edv\u00e1 p\u0159i testov\u00e1n\u00ed COBB?\u00a0<\/strong>
\nKovov\u00fd v\u00e1le\u010dek pou\u017e\u00edvan\u00fd p\u0159i zkou\u0161ce COBB je v\u00e1le\u010dek z nerezov\u00e9 oceli s hladk\u00fdm povrchem o \u0161\u00ed\u0159ce 20 cm a hmotnosti 10,0 \u00b1 0,5 kg (22 \u00b1 1,1 lb).<\/p>\n

 <\/p>\n

Pokud m\u00e1te pot\u0159ebu n\u00e1kupu, pros\u00edm\u00a0kontaktujte n\u00e1s<\/a>\u00a0a COBB\u00a0V\u00fdrobce testeru<\/a>\u00a0-\u00a0Cell Instruments<\/a>\u00a0v\u00e1m poskytne uspokojiv\u00e9 produkty.<\/p>\n

\"COBB-01<\/a><\/p>\n

Pokud m\u00e1te z\u00e1jem o dal\u0161\u00ed informace o tomto produktu, nev\u00e1hejte n\u00e1s kontaktovat. Doporu\u010dujeme v\u00e1m dal\u0161\u00ed obl\u00edben\u00e9 produkty:\u00a0Dodavatel testeru pap\u00edrov\u00fdch ne\u010distot<\/a><\/p>","protected":false},"excerpt":{"rendered":"

1. Introduction of\u00a0COBB Tester COBB Tester\u00a0is used for assessing the water absorption of paper and paperboard through the\u00a0cobb test method. It proves effective in sizing paper and determining water absorption on cardboard surfaces, but it is not recommended for use on basic paper or embossed paper with a basis weight below 50g\/m\u00b2, having low sizing […]<\/p>","protected":false},"featured_media":0,"parent":0,"template":"","meta":{"_acf_changed":false},"products-categories":[1468],"productstags":[],"class_list":["post-2927","products","type-products","status-publish","hentry","products-categories-paper-board-tester"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/products\/2927","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/products"}],"about":[{"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/types\/products"}],"version-history":[{"count":0,"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/products\/2927\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/media?parent=2927"}],"wp:term":[{"taxonomy":"products-categories","embeddable":true,"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/products-categories?post=2927"},{"taxonomy":"productstags","embeddable":true,"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/productstags?post=2927"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}