RT-411A Paper Cobb Test Machine, Cardboard Cobb Absorption Tester

RT-411A Paper Cobb Test Machine, Cardboard Cobb Absorption Tester

This machine applies to determination of surface water absorption about all kinds of paper or cardboard. But it is not for the accurateevaluation of paper or the writing performance of cardboard.

Product Details:

Technical parameters:

 

1. Name:Paper Cardboard Cobb Absorption Tester

2.The inner crossing section of metal cylinder is 100±0.2 cm2 (corresponding to inner diameter is 112.8± 0.2mm),

3. cylinder height is 50mm, the contact part between cylindrical ring surface and the sample should be smooth.

4. Absorbent paper ration is 200~250g/m2, the absorption rate is 75mm/10min. When the absorbent paper  monolayer quantitatively less than 200 ~ 250 g/m2, can meet the requirements by multilayer stack.

5. Smooth metal flat roll: the length of the roller is 200 ± 0.5mm, the quality should be 10 ± 0.5kg.

6. Test water consumption: 100 mm ± 5 ml.

7. Size and weight: size: < 480 x 400 x 420 (mm), weight: 28kg

 

 

Equipment summary:

 

The design of the Paper Cardboard Cobb Absorption Tester is based on the GB/T1540 2002 paper and cardboard water  absorption method (Cobb method) provides basic parameters and requirements.

This machine applies to determination of surface water absorption about all kinds of paper or cardboard. But it is not for the accurateevaluation of paper or the writing performance of cardboard.

 

Main feature:

 

The value of paper andcardboard surface water absorbing capacity (Cobb): the unit area of paper

and cardboard in a certain pressure and temperature, within the time specified the absorption of

water by surface to g /m2 meter. The specific formula is as follows: C = (G2 – G1) x 100. (C – value of Cobb water absorption;

G2 – the sample quality after absorbing water; G1 – the sample quality before absorbing water)

Paper and cardboard absorbing tester is the conventional instrument of the paper and cardboard

surface water absorptiontest, also called the weight of paper surface absorption tester. The

instrument adopts Cobb test method of thev arious methods in the absorption test, it is also called Cobb absorption tester.

 

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RT-411A Paper Cobb Test Machine, Cardboard Cobb Absorption Tester

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