Summary:
Cob water absorption tester for paper and paperboard is a special instrument for measuring the surface water absorption of paper and paperboard.Technical indicators and performance parameters meet
Relevant provisions of ISO535 Paper and Board Determination of Water Absorption Cobb Method and QB/T1668 Cobb Absorption Tester.
This instrument is mainly used to measure the surface water absorption of coated paper and paperboard under the conditions specified in the standard. Loose paper (such as newsprint paper), non sized paper (such as ink absorbing paper) and other paper with high water absorption are not applicable to this instrument. Other test methods and instruments should be selected.
Technical parameters:
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Parameter items
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Technical indicators
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Test area
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100cm2±0.2cm2
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Test area Specimen size (diameter)
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Φ125mm
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Test water consumption
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100ml±5ml
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Length of pressing roller
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200mm±0.5mm
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Press roll quality
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10kg±0.5kg
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Overall dimension (length × wide × High)
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430mm×320mm×320mm
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Overall quality
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约30kg
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