{"id":2927,"date":"2026-02-05T01:35:00","date_gmt":"2026-02-05T01:35:00","guid":{"rendered":"https:\/\/test.geo-tester.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:\/\/test.geo-tester.com\/sk\/products\/cobb-01-cobb-tester.html","title":{"rendered":"COBB-01 COBB Tester"},"content":{"rendered":"

1. Predstavenie COBB Testeru<\/h2>\n

Tester COBB<\/strong>\u00a0sa pou\u017e\u00edva na hodnotenie nasiakavosti papiera a lepenky prostredn\u00edctvom\u00a0Cobbova sk\u00fa\u0161obn\u00e1 met\u00f3da<\/strong>. Je \u00fa\u010dinn\u00fd pri ur\u010dovan\u00ed ve\u013ekosti papiera a ur\u010dovan\u00ed absorpcie vody na kart\u00f3nov\u00fdch povrchoch, ale neodpor\u00fa\u010da sa pou\u017e\u00edva\u0165 na z\u00e1kladn\u00fd papier alebo reli\u00e9fny papier s gram\u00e1\u017eou ni\u017e\u0161ou ako 50 g\/m\u00b2, s n\u00edzkym stup\u0148om ve\u013ekosti alebo s po\u010detn\u00fdmi dierkami. Okrem toho nie je vhodn\u00fd na presn\u00e9 pos\u00fadenie nerozmern\u00e9ho papiera a lepenky, ani neposkytuje presn\u00e9 hodnotenie p\u00edsac\u00edch vlastnost\u00ed papiera alebo lepenky.<\/p>\n

Cobbov tester<\/strong>\u00a0hodnot\u00ed schopnos\u0165 papiera alebo lepenky absorbova\u0165 vodu. Cobbova hodnota vyjadruje hmotnos\u0165 vody absorbovanej povrchom kart\u00f3nu na jednotku plochy, vyjadren\u00fa v gramoch na meter \u0161tvorcov\u00fd (g\/m\u00b2), za ur\u010dit\u00fdch podmienok a v stanovenom \u010dasovom r\u00e1mci.<\/p>\n

Celkov\u00fd odpor\u00fa\u010dan\u00fd \u010das sk\u00fa\u0161ky pod\u013ea medzin\u00e1rodn\u00fdch noriem na odstr\u00e1nenie prebyto\u010dnej vody a vykonanie absorpcie vody je nasledovn\u00fd:<\/p>\n

\n\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n
Odpor\u00fa\u010dan\u00fd \u010das<\/td>\nMark<\/td>\n\u010cas odstr\u00e1nenia prebyto\u010dnej vody (S)<\/td>\n\u010cas do konca absorpcie 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 odstr\u00e1nen\u00ed prebyto\u010dnej vody 15\u00b12<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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

2. \u010co je COBB reza\u010dka vzoriek?<\/h2>\n

Reza\u010dka vzoriek COBB<\/strong>\u00a0je z\u00e1kladn\u00fdm n\u00e1strojom na testovanie absorpcie, ktor\u00fd r\u00fdchlo a presne vyre\u017ee vzorku s ur\u010denou plochou \u03c6125 mm.Je to vzorkovnica raziaceho typu a osved\u010duje sa ako ide\u00e1lny pr\u00edstroj pre v\u00fdrobu vlnitej lepenky a kart\u00f3nu, v\u00fdskum, doh\u013ead nad kvalitou, kontroly a r\u00f4zne in\u00e9 oddelenia.<\/p>\n

 <\/p>\n

3. Pre\u010do potrebujete COBB Tester?<\/h2>\n

Papier a kart\u00f3n s\u00fa be\u017en\u00fdmi materi\u00e1lmi pou\u017e\u00edvan\u00fdmi na tla\u010d obsahu a ich absorp\u010dn\u00e9 vlastnosti m\u00f4\u017eu ovplyvni\u0165 kvalitu tla\u010de. Znalos\u0165\u00a0Hodnota Cobb\u00a0<\/strong>pom\u00e1ha zabezpe\u010di\u0165, aby boli vybran\u00e9 materi\u00e1ly vhodn\u00e9 na tla\u010d, a minimalizuje probl\u00e9my spojen\u00e9 s rozmazan\u00edm atramentu alebo zlou kvalitou tla\u010de.<\/p>\n

Cobbovo testovanie<\/strong>\u00a0je opatrenie na kontrolu kvality, ktor\u00fdm sa zabezpe\u010duje, \u017ee materi\u00e1ly sp\u013a\u0148aj\u00fa priemyseln\u00e9 normy. Vedci zaoberaj\u00faci sa materi\u00e1lmi vyu\u017e\u00edvaj\u00fa tieto \u00fadaje na optimaliz\u00e1ciu zlo\u017eenia papiera a lepenky a prisp\u00f4sobuj\u00fa ich na konkr\u00e9tne pou\u017eitie na z\u00e1klade ich vlastnost\u00ed absorpcie vody.<\/p>\n

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

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

Vyroben\u00e9 z nehrdzavej\u00facej ocele<\/p>\n

\u0160tandardn\u00fd kovov\u00fd val\u010dek<\/p>\n

 <\/p>\n

5. Princ\u00edp testu COBB Tester<\/h2>\n

Pred vykonan\u00edm testu vzorku odv\u00e1\u017ete. Ke\u010f sa jedna strana vzorky dostane na ur\u010dit\u00fd \u010das do kontaktu s vodou, odstr\u00e1\u0148te prebyto\u010dn\u00fa vlhkos\u0165 z vysu\u0161enej vzorky a okam\u017eite ju odv\u00e1\u017ete. V\u00fdsledky vyjadrite n\u00e1rastom hmotnosti na jednotku plochy vzorky meran\u00fdm v gramoch na meter \u0161tvorcov\u00fd (g\/m\u00b2).<\/p>\n

 <\/p>\n

6. Pou\u017eitie COBB Testeru<\/h2>\n

Cobbov tester<\/strong>\u00a0sa be\u017ene pou\u017e\u00edva na meranie absorp\u010dnej kapacity por\u00e9znych materi\u00e1lov, najm\u00e4 papiera a lepenky. Je ve\u013emi d\u00f4le\u017eit\u00e1 na pos\u00fadenie schopnosti t\u00fdchto materi\u00e1lov absorbova\u0165 vodu, \u010do m\u00f4\u017ee ma\u0165 vplyv na r\u00f4zne aplik\u00e1cie, napr\u00edklad na tla\u010d, balenie a v\u00fdrobky na b\u00e1ze papiera. Na str\u00e1nke .\u00a0Cobbov tester<\/strong>\u00a0je obzvl\u00e1\u0161\u0165 d\u00f4le\u017eit\u00fd pre materi\u00e1ly, ktor\u00fdch vlastnosti absorpcie vody s\u00fa v\u00fdznamn\u00e9 a dodr\u017eiavanie \u0161pecifick\u00fdch noriem je nevyhnutn\u00e9 pre kontrolu kvality a optimaliz\u00e1ciu v\u00fdkonu.<\/p>\n

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

7. \u0160pecifik\u00e1cie testera COBB<\/h2>\n
\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n
COBB-01<\/td>\n<\/tr>\n
Testovacia oblas\u0165<\/td>\n100\u00b10,2cm\u00b2<\/td>\n<\/tr>\n
Spotreba vody<\/td>\n100\u00b15ml<\/td>\n<\/tr>\n
\u0160\u00edrka kovov\u00e9ho valca<\/td>\n200 \u00b1 0,5 mm<\/td>\n<\/tr>\n
Hmotnos\u0165 kovov\u00e9ho valca<\/td>\n10\u00b10,5 kg<\/td>\n<\/tr>\n
Rozmer<\/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
Reza\u010dka vzoriek COBB<\/td>\n<\/tr>\n
Priemer odberu vzoriek<\/td>\n\u00d8125 mm<\/td>\n<\/tr>\n
Chyba v\u00fdberu vzorky<\/td>\n\u00b10,2 mm<\/td>\n<\/tr>\n
Hr\u00fabka odberu vzorky<\/td>\n\uff080.1\uff5e2.0\uff09mm<\/td>\n<\/tr>\n
Rozmer<\/td>\n(250*280*450) mm LWH<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

8. \u0160tandardy testera COBB<\/h2>\n

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

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

9. Konfigur\u00e1cia testera COBB:<\/h2>\n

a) \u0160tandardn\u00e1 konfigur\u00e1cia:\u00a0COBB-01 COBB Tester<\/strong>, Kovov\u00fd val\u010dek, ru\u010dn\u00fd<\/p>\n

b) Volite\u013en\u00e1 konfigur\u00e1cia: Blotovac\u00ed papier,\u00a0Reza\u010dka vzoriek COBB<\/strong><\/p>\n

 <\/p>\n

10. \u010casto kladen\u00e9 ot\u00e1zky t\u00fdkaj\u00face sa COBB Testeru<\/h2>\n

Ak\u00e1 je hodnota COBB?<\/strong>
\nCobbova hodnota je vypo\u010d\u00edtan\u00e1 hmotnos\u0165 vody absorbovanej za ur\u010dit\u00fd \u010das 1 m\u00b2 papiera alebo lepenky za ur\u010dit\u00fdch podmienok.<\/p>\n

\u010co je \u010das absorpcie?<\/strong>
\n\u010cas od za\u010diatku kontaktu medzi vodou a vzorkou do konca absorpcie vody.<\/p>\n

Pre\u010do je test COBB d\u00f4le\u017eit\u00fd pre kvalitu papiera?<\/strong>
\nTest COBB m\u00e1 z\u00e1sadn\u00fd v\u00fdznam pre pos\u00fadenie nasiakavosti papiera. Tieto inform\u00e1cie s\u00fa nevyhnutn\u00e9 na udr\u017eanie kvality tla\u010de, predch\u00e1dzanie probl\u00e9mom, ako je rozmaz\u00e1vanie atramentu alebo zhor\u0161en\u00e9 \u0161tandardy tla\u010de, \u010do je d\u00f4le\u017eit\u00e9 najm\u00e4 pri v\u00fdrobe vysokokvalitn\u00fdch tla\u010dov\u00edn.<\/p>\n

\u010co je to kovov\u00fd val\u010dek pou\u017e\u00edvan\u00fd pri testovan\u00ed COBB?\u00a0<\/strong>
\nKovov\u00fd val\u010dek pou\u017e\u00edvan\u00fd pri sk\u00fa\u0161ke COBB je val\u010dek z nehrdzavej\u00facej ocele s hladkou plochou \u0161irokou 20 cm a hmotnos\u0165ou 10,0 \u00b1 0,5 kg (22 \u00b1 1,1 lb).<\/p>\n

 <\/p>\n

Ak m\u00e1te potrebu n\u00e1kupu, pros\u00edm\u00a0kontaktujte n\u00e1s<\/a>\u00a0a COBB\u00a0V\u00fdrobca testerov<\/a>\u00a0-\u00a0Cell Instruments<\/a>\u00a0v\u00e1m poskytne uspokojiv\u00e9 produkty.<\/p>\n

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

Ak m\u00e1te z\u00e1ujem o \u010fal\u0161ie inform\u00e1cie o tomto v\u00fdrobku, nev\u00e1hajte n\u00e1s kontaktova\u0165. Odpor\u00fa\u010dame v\u00e1m \u010fal\u0161ie ob\u013e\u00faben\u00e9 produkty:\u00a0Dod\u00e1vate\u013e testera papierov\u00fdch ne\u010dist\u00f4t<\/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:\/\/test.geo-tester.com\/sk\/wp-json\/wp\/v2\/products\/2927","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/test.geo-tester.com\/sk\/wp-json\/wp\/v2\/products"}],"about":[{"href":"https:\/\/test.geo-tester.com\/sk\/wp-json\/wp\/v2\/types\/products"}],"version-history":[{"count":0,"href":"https:\/\/test.geo-tester.com\/sk\/wp-json\/wp\/v2\/products\/2927\/revisions"}],"wp:attachment":[{"href":"https:\/\/test.geo-tester.com\/sk\/wp-json\/wp\/v2\/media?parent=2927"}],"wp:term":[{"taxonomy":"products-categories","embeddable":true,"href":"https:\/\/test.geo-tester.com\/sk\/wp-json\/wp\/v2\/products-categories?post=2927"},{"taxonomy":"productstags","embeddable":true,"href":"https:\/\/test.geo-tester.com\/sk\/wp-json\/wp\/v2\/productstags?post=2927"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}