{"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\/lt\/products\/cobb-01-cobb-tester.html","title":{"rendered":"COBB-01 COBB testeris"},"content":{"rendered":"

1. COBB testerio pristatymas<\/h2>\n

COBB testeris<\/strong>\u00a0naudojamas popieriaus ir kartono vandens \u012fgeriamumui vertinti naudojant\u00a0Cobbo bandymo metodas<\/strong>. Tai veiksminga priemon\u0117 popieriaus dyd\u017eiui nustatyti ir vandens \u012fgeriamumui kartono pavir\u0161iuje nustatyti, ta\u010diau jos nerekomenduojama naudoti pagrindiniam popieriui arba reljefiniam popieriui, kurio mas\u0117 ma\u017eesn\u0117 nei 50 g\/m\u00b2, kurio dydis yra \u017eemas arba kuriame yra daug skylu\u010di\u0173. Be to, jis netinka tiksliai \u012fvertinti nesuformuot\u0105 popieri\u0173 ir karton\u0105, taip pat juo negalima tiksliai \u012fvertinti popieriaus ar kartono ra\u0161ymo savybi\u0173.<\/p>\n

\"Cobb\" testeris<\/strong>\u00a0vertinamas popieriaus ar kartono pavir\u0161i\u0173 geb\u0117jimas sugerti vanden\u012f. Cobbo vert\u0117 rodo, koki\u0105 vandens mas\u0119 tam tikromis s\u0105lygomis ir per tam tikr\u0105 laik\u0105 sugeria kartono pavir\u0161iaus ploto vienetui tenkanti vandens mas\u0117, i\u0161reik\u0161ta gramais kvadratiniam metrui (g\/m\u00b2).<\/p>\n

Pagal tarptautinius standartus rekomenduojamas bendras bandymo laikas, per kur\u012f pa\u0161alinamas vandens perteklius ir atliekamas vandens sug\u0117rimas, yra toks:<\/p>\n

\n\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n
Rekomenduojamas laikas<\/td>\nMarkas<\/td>\nVandens pertekliaus pa\u0161alinimo laikas (S)<\/td>\nLaikas, per kur\u012f baigiamas sugerti vanduo (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>\nPa\u0161alinus vandens pertekli\u0173 15\u00b12<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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

2. Kas yra COBB pavyzd\u017ei\u0173 pjaustytuvas?<\/h2>\n

COBB pavyzd\u017ei\u0173 pjaustykl\u0117<\/strong>\u00a0Tai esminis absorbcijos bandym\u0173 \u012frankis, greitai ir tiksliai i\u0161pjaunantis nustatyto ploto \u03c6125 mm pavyzd\u012f.Tai \u0161tampavimo tipo m\u0117gini\u0173 \u0117miklis, kuris puikiai tinka gofruotojo kartono ir kartono gamybai, moksliniams tyrimams, kokyb\u0117s prie\u017ei\u016brai, patikrinimams ir \u012fvairiems kitiems skyriams.<\/p>\n

 <\/p>\n

3. Kam jums reikalingas COBB testeris?<\/h2>\n

Popierius ir kartonas yra \u012fprastos med\u017eiagos, naudojamos spausdintam turiniui, o j\u0173 vandens \u012fgeriamumo savyb\u0117s gali tur\u0117ti \u012ftakos spausdinimo kokybei. \u017dinant\u00a0Cobb vert\u0117\u00a0<\/strong>padeda u\u017etikrinti, kad pasirinktos med\u017eiagos b\u016bt\u0173 tinkamos spausdinimui, tod\u0117l suma\u017e\u0117ja problem\u0173, susijusi\u0173 su ra\u0161alo d\u0117m\u0117mis ar prasta spausdinimo kokybe.<\/p>\n

Cobb testavimas<\/strong>\u00a0tai kokyb\u0117s kontrol\u0117s priemon\u0117, skirta u\u017etikrinti, kad med\u017eiagos atitikt\u0173 pramon\u0117s standartus. Med\u017eiag\u0173 mokslininkai \u0161iuos duomenis naudoja popieriaus ir kartono sud\u0117\u010diai optimizuoti, pritaikydami juos konkre\u010dioms reikm\u0117ms pagal vandens \u012fgeriamumo savybes.<\/p>\n

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

4. COBB testerio privalumai<\/h2>\n

Pagamintas i\u0161 ner\u016bdijan\u010dio plieno<\/p>\n

Standartinis metalinis ritin\u0117lis<\/p>\n

 <\/p>\n

5. COBB testerio bandymo principas<\/h2>\n

Prie\u0161 atlikdami bandym\u0105 pasverkite m\u0117gin\u012f. Kai viena m\u0117ginio pus\u0117 tam tikr\u0105 laik\u0105 lie\u010diasi su vandeniu, pa\u0161alinkite dr\u0117gm\u0117s pertekli\u0173 i\u0161 i\u0161d\u017eiovinto m\u0117ginio ir nedelsdami j\u012f pasverkite. Rezultatus i\u0161reik\u0161kite mas\u0117s padid\u0117jimu bandinio ploto vienetui, matuojamu gramais kvadratiniam metrui (g\/m\u00b2).<\/p>\n

 <\/p>\n

6. COBB testerio taikymas<\/h2>\n

\"Cobb\" testeris<\/strong>\u00a0paprastai naudojamas akyt\u0173j\u0173 med\u017eiag\u0173, ypa\u010d popieriaus ir kartono, vandens sug\u0117rimo gebai matuoti. Tai labai svarbu vertinant \u0161i\u0173 med\u017eiag\u0173 geb\u0117jim\u0105 sugerti vanden\u012f, kuris gali tur\u0117ti \u012ftakos \u012fvairioms paskirtims, pvz., spaudai, pakavimui ir popieriaus gaminiams. .\u00a0\"Cobb\" testeris<\/strong>\u00a0ypa\u010d aktualu med\u017eiagoms, kuri\u0173 vandens absorbcijos charakteristikos yra svarbios, o kokyb\u0117s kontrolei ir eksploatacini\u0173 savybi\u0173 optimizavimui labai svarbu laikytis konkre\u010di\u0173 standart\u0173.<\/p>\n

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

7. COBB testerio specifikacijos<\/h2>\n
\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n
COBB-01<\/td>\n<\/tr>\n
Bandym\u0173 sritis<\/td>\n100\u00b10,2 cm\u00b2<\/td>\n<\/tr>\n
Vandens suvartojimas<\/td>\n100\u00b15ml<\/td>\n<\/tr>\n
Metalo ritin\u0117lio plotis<\/td>\n200\u00b10,5 mm<\/td>\n<\/tr>\n
Metalinis ritin\u0117lis Svoris<\/td>\n10\u00b10,5 kg<\/td>\n<\/tr>\n
Matmenys<\/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
COBB m\u0117gini\u0173 pjaustytuvas<\/td>\n<\/tr>\n
M\u0117gini\u0173 \u0117mimo skersmuo<\/td>\n\u00d8125 mm<\/td>\n<\/tr>\n
Atrankos klaida<\/td>\n\u00b10,2 mm<\/td>\n<\/tr>\n
M\u0117gini\u0173 \u0117mimo storis<\/td>\n\uff080,1\uff5e2,0\uff09mm<\/td>\n<\/tr>\n
Matmenys<\/td>\n(250*280*450) mm LWH<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

8. COBB testerio standartai<\/h2>\n

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

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

9. COBB testerio konfig\u016bracija:<\/h2>\n

a) Standartin\u0117 konfig\u016bracija:\u00a0COBB-01 COBB testeris<\/strong>, Metalinis ritin\u0117lis, rankinis<\/p>\n

b) Neprivaloma konfig\u016bracija: Blotavimo popierius,\u00a0COBB pavyzd\u017ei\u0173 pjaustytuvas<\/strong><\/p>\n

 <\/p>\n

10. DUK apie COBB tester\u012f<\/h2>\n

Kokia yra COBB vert\u0117?<\/strong>
\nCobb vert\u0117 - tai apskai\u010diuota vandens mas\u0117, kuri\u0105 per tam tikr\u0105 laik\u0105 tam tikromis s\u0105lygomis sugeria 1 m\u00b2 popieriaus ar kartono.<\/p>\n

Kas yra absorbcijos laikas?<\/strong>
\nLaikas nuo vandens ir m\u0117ginio s\u0105ly\u010dio prad\u017eios iki vandens absorbcijos pabaigos.<\/p>\n

Kod\u0117l COBB testas svarbus popieriaus kokybei?<\/strong>
\nCOBB testas yra labai svarbus vertinant popieriaus vandens \u012fgeriamumo savybes. \u0160i informacija yra labai svarbi siekiant i\u0161laikyti spausdinimo kokyb\u0119, i\u0161vengti toki\u0173 problem\u0173, kaip ra\u0161alo d\u0117m\u0117s ar pa\u017eeisti spausdinimo standartai, o tai ypa\u010d svarbu gaminant auk\u0161tos kokyb\u0117s spaudinius.<\/p>\n

Koks metalinis ritin\u0117lis naudojamas COBB bandymams?\u00a0<\/strong>
\nAtliekant COBB bandym\u0105 naudojamas ner\u016bdijan\u010diojo plieno ritin\u0117lis, kurio lygus pavir\u0161ius yra 20 cm plo\u010dio ir sveria 10,0 \u00b1 0,5 kg (22 \u00b1 1,1 lb).<\/p>\n

 <\/p>\n

Jei turite pirkimo poreiki\u0173, pra\u0161ome\u00a0susisiekite su mumis<\/a>\u00a0ir COBB\u00a0Testerio gamintojas<\/a>\u00a0-\u00a0Cell Instruments<\/a>\u00a0suteiks jums patenkinamus produktus.<\/p>\n

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

Jei norite gauti daugiau informacijos apie \u0161\u012f gamin\u012f, nedvejodami susisiekite su mumis. Rekomenduojame jums kitus populiarius produktus:\u00a0Popieriaus ne\u0161varum\u0173 testerio tiek\u0117jas<\/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\/lt\/wp-json\/wp\/v2\/products\/2927","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.materialstests.com\/lt\/wp-json\/wp\/v2\/products"}],"about":[{"href":"https:\/\/www.materialstests.com\/lt\/wp-json\/wp\/v2\/types\/products"}],"version-history":[{"count":0,"href":"https:\/\/www.materialstests.com\/lt\/wp-json\/wp\/v2\/products\/2927\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.materialstests.com\/lt\/wp-json\/wp\/v2\/media?parent=2927"}],"wp:term":[{"taxonomy":"products-categories","embeddable":true,"href":"https:\/\/www.materialstests.com\/lt\/wp-json\/wp\/v2\/products-categories?post=2927"},{"taxonomy":"productstags","embeddable":true,"href":"https:\/\/www.materialstests.com\/lt\/wp-json\/wp\/v2\/productstags?post=2927"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}