Basically Cobb Tester consists of a support frame and a metallic cylinder about 5 cm high with an internal cross section of 100.00 cm2 (11.29 cm internal diameter). Clamping System : The cylinder is clamped by spring loaded upper plate lined with rubber mat...
This innovative principle offers a completely new opportunity to characterise and understand the phenomena of dynamic water absorption. Here the water uptake is continuously monitored across a full 100 cm² area of sized paper or board as a function of time. Apart from the total...
For determining the water absorbency of paper, paperboard and corrugated fiber board. Measures the increase of a sample, exposed to water for a given time. Test area 100 cm2. With couch roll of width 210mm, weight 10 kg. Automatic : Spring loaded...
Water Absorptiveness also known as the Cobb Value is the function or method to determine the characteristics of paper, paperboard & corrugated boards including the porosity, sizing, and fiber compositions. This process is performed on various sheets or non-bibulous i.e. highly...
The water absorption strength is one the major property of the packaging products as the packaging containers has to face a lot of moist conditions at the time of warehousing, storage or during transit....
Presto’s Cobb sizing tester is designed and manufactured for quickly determining the quantity of water absorbed by a paper or cardboard in a specific time period. The Cobb value of a substance means the quantity of water absorbed in a given time by a 1 square meter sample of...