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Paper water absorptiveness tester COBB tester with blotting paper 10Kg roller COBB testing

Categories Paper and Board Tester
Place of Origin: China
Brand Name: Cell Instruments
Model Number: COBB-
MOQ: 1 set
Packaging Details: export carton
Delivery Time: 7 days
Payment Terms: TT LC
Supply Ability: 100 sets/week
Power: Electronic
Usage: Paper Testing Instrument
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    Paper water absorptiveness tester COBB tester with blotting paper 10Kg roller COBB testing

    Paper water absorptiveness tester measures the surface water absorption of paper and paper board. Loose paper, e.g. newsprint, unsized paper, e.g. blotter and other high absorbability paper is not for this tester.


    Paper water absorptiveness tester principle

    The Cobb value of surface water absorption of paper and paperboard.:

    The calculated mass of water absorbed in a specified time by a unit area of paper or board under specified pressure and temperature conditions. It is expressed in g/㎡.

    C=(G2-G1)×100.

    C-water absorptiveness

    G2-wet mass, in grams, of the test piece

    G1-dry mass, in grams, of the test piece

    When Cobb value is less than 200~250 g/㎡ for single layer, more layers can used.



    Paper water absorptiveness tester technical data


    Metal roller sectional area100±0.2㎝2
    Metal roller diameter112.8±0.2mm
    Roll height50mm
    Blotting paper200~250g/㎡
    Absorption speed75mm/10min
    Smooth metal rollerlength 200±0.5mm,mass10±0.5kg.
    Water volume100mm±5ml.

    Dimension

    480×400×420(mm)

    Standard

    ISO 535,GB/T 1540,QB/T 1668

    Quality Paper water absorptiveness tester COBB tester with blotting paper 10Kg roller COBB testing for sale
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