To address the creation of new products that trend seek

• No.2071
• [JIS]
• [TAPPI]
• [ISO]

Liquid penetration behavior of paperboard is important, since it is closely related to water fastness, printability and processibility. Paper products are usually sized for improving water fastness and writing quality. The degree of sizing is an essential factor of paper quality. This absorptmeter is based on the Bristow’s method, provided with a fundamentally improved measurement system, and fully automatic measurement procedures with computer control.

• No.2072-1
• [JIS]
• [TAPPI]
• [ISO]

Transfer of ink to the paper and absorption of ink by the paper through the printing process, including penetration of colors in coating, are important factors, especially when paper and paperboard are coated. Other important factors in processing papers are penetration of bond into inner cores and bonding to liners at the corrugators.
This behavior of liquid penetrating the paper layer is considerably different from that of the liquid penetrating the paper with a time span of several seconds or several tens of seconds, in the status of the paper being in static contact with liquid, as known in the conventional testing methods such as “Stockigt” and “Cobb” methods.
To grasp this behavior, the Bristow type tester is designed for the purpose of measuring absorption speed of liquid in the processes of coating, box making and printing, when the liquid is at normal pressures or pressurized.
In the status of normal pressure or pressurized, the measurement principle is as follows; the specimen is applied on the circumferential surface of a rotation disc and made to rotate at different speeds, contacting with a head box filled with a certain amount of liquid on the specimen. The specimen is rotated at a certain speed until the liquid leaking out from a slit in the head box is completely absorbed by the paper. Absorption by the specimen is evaluated with a liquid transfer area recorded.
J. TAPPI No.51-2000

• No.2072-2
• [JIS]
• [TAPPI]
• [ISO]

Normally, infiltration of liquid into paper is made at a certain pressure in the process of coating, printing and bonding. This machine is developed in order to reproduce the desired conditions for this test. This new type tester features a pressuring head box, instead of the normal pressure head box, to measure transfer of liquid through absorption by applying a certain pressure to the liquid.

• No.2076
• [JIS]P-8141-2004
• [TAPPI]
• [ISO]

This tester is designed to offer easy measurement of absorptiveness of liquids such as water, ink, oil and the like, and suitably used for towel paper, toilet thin paper of high absorptiveness. The specimen is suspended from the top of the pad containing liquid. After a certain span of time, the level of absorbed liquid is measured to the nearest millimeters.