Paper and Board absorbency Tester is my company on the basis of standards requires the development of a common laboratory test instruments. Mainly used for sizing paper including corrugated board and cardboard determination of surface water absorption. May not apply but quantitatively less than 50g/square meters of paper and embossed paper, may not be suitable for loose paper (news paper) or not sized paper (blotter) or other significant water absorption of the paper.

This instrument is based on the GB/T1540-2002 method of the paper and Board-determination of water absorption (BofA) provides the basic design parameters and requirements. This standard applies to the determination of all sorts of paper or cardboard surface water absorption. But not for accurate evaluation of paper or paperboard of write performance.

1. Metal cylinders inside an area of 100 ± 0.2 cm 2 (diameter 112.8 ± 0.2mm), is a 50mm of the cylinder, cylinder toric contact with sample parts should be smooth.

2. quantitative 200~ 250g/square meters of absorbent paper, the absorption rate for the 75mm/10min. when the blotting paper a single layer when the quantity is less than 200~ 250 g/㎡, multi-layer can be used to meet the requirements.

3. smooth metal roller: roller length of 200 0.5mm, the quality shall be 10 ± 0.5kg.

4. test water: 100mm ± 5ml.

1. preparation of samples: the samples were cut into circular specimen diameter 125mm 10 (both 5), in order to ensure each test area of 100 cm 2.

2. place sample: placed before the specimen to ensure contact with the specimen cylinder surface is dry. Use

Glass graduated cylinder accurately measured 100mL in distilled water into the cylinders, has good weight circular specimen is then placed in the circular cylinder surface, edge water direction (down), and will build on the test sample sample cover and cylinder are fixed together and clamp nut and tighten. Gently pull out the spring cylindrical pin, shake shake cylinder rotated 180 °, then insert the spring cylindrical pin while in the slot.

3. water absorption: water absorption time is measured from the water begins to absorb water in contact with samples at the end of time. This time, according to different water absorption to select paper and paperboard, and consistent with the lower surface. When necessary, may extend or shorten the time, but should be indicated in the test report. When the suction 10-15s before the end, allocated spring cylindrical pin gently again, shake shake 180 ° flip the cylinder, turned over the cylinder.