The most critical factors affecting runnability of paper machines are the tension and relaxation properties of wet paper. In this study, the effect of electrolytes, pH and surface tension on dry and wet web properties was investigated. Addition of a non-ionic surfactant at pH 6.5 and conductivity level of 1 mS/cm, achieved by addition of CaCl2, decreased surface tension and increased dry content. Density, air permeability and tensile strength increased for dry sheets. Tensile strength and residual tension at 2% strain of the wet web increased until a concentration of 0.25 g of surfactant/L of water, primarily due to the increased dry content. Lowering of pH from 6.5 to 5, decreased dry content after wet pressing and air permeability of dry ...
A tensile test rig has been developed by VTT and Metso Paper for measuring dynamic tensile and relax...
Dissolved and colloidal substances in mill waters are known to have effect on retention and drainage...
Sufficient tension of the wet web is crucial for paper machine runnability. As profitability pressur...
The most critical factors affecting runnability of paper machines are the tension and relaxation pro...
This paper presents recent runnability research carried out in laboratory and pilot scale. Factors a...
Speed of paper machines is often limited by the drainage rate of the furnish and the mechanical prop...
The trend in papermaking has been towards lower basis weights, decreased amounts of softwood kraft p...
Selective addition of papermaking chemicals to fines and long fibre fractions are known to have posi...
In this study, the effects of refining intensity, alteration of fibre properties and fines content, ...
tensile strength Various strength properties of paper are measured to tell how well it resists break...
A smooth web transfer in a paper machine requires sufficient tension. It is well known that excessiv...
Producers, converters and printers of paper try to maximize the production and minimize the waste. T...
The goal of this work was to clarify the effects of sequential addition of commercial cationic and a...
The runnability of a wet web is the sum of many factors, ranging from furnish variables to papermaki...
Speed of paper machines is often limited by the drainage rate of the furnish and the mechanical prop...
A tensile test rig has been developed by VTT and Metso Paper for measuring dynamic tensile and relax...
Dissolved and colloidal substances in mill waters are known to have effect on retention and drainage...
Sufficient tension of the wet web is crucial for paper machine runnability. As profitability pressur...
The most critical factors affecting runnability of paper machines are the tension and relaxation pro...
This paper presents recent runnability research carried out in laboratory and pilot scale. Factors a...
Speed of paper machines is often limited by the drainage rate of the furnish and the mechanical prop...
The trend in papermaking has been towards lower basis weights, decreased amounts of softwood kraft p...
Selective addition of papermaking chemicals to fines and long fibre fractions are known to have posi...
In this study, the effects of refining intensity, alteration of fibre properties and fines content, ...
tensile strength Various strength properties of paper are measured to tell how well it resists break...
A smooth web transfer in a paper machine requires sufficient tension. It is well known that excessiv...
Producers, converters and printers of paper try to maximize the production and minimize the waste. T...
The goal of this work was to clarify the effects of sequential addition of commercial cationic and a...
The runnability of a wet web is the sum of many factors, ranging from furnish variables to papermaki...
Speed of paper machines is often limited by the drainage rate of the furnish and the mechanical prop...
A tensile test rig has been developed by VTT and Metso Paper for measuring dynamic tensile and relax...
Dissolved and colloidal substances in mill waters are known to have effect on retention and drainage...
Sufficient tension of the wet web is crucial for paper machine runnability. As profitability pressur...