Pure wood pulp jumbo paper is a kind of paper product, which is made of pure natural wood pulp through processing. Generally used in high-end printing, book binding, precious document protection and other fields.
main performance
Its main performance includes the following aspects:
Whiteness: pure wood pulp jumbo paper has high whiteness, so it can guarantee the color and brightness of printed text, patterns and pictures.
Flatness: Pure wood pulp jumbo paper has good flatness and smooth surface, which can guarantee the printing quality.
Thickness and weight: Pure wood pulp jumbo paper is usually thicker and heavier, which can ensure the feel and texture of printed matter.
Durability: Since the raw material of pure wood pulp jumbo paper is natural wood pulp, its durability is good, which can ensure the long-term preservation and protection of printed matter.
Moisture content: The moisture content of pure wood pulp shaft paper also has a certain impact on its quality. Too high or too low moisture content may lead to a decline in paper quality.
pH: The pH of pure wood pulp jumbo paper is also one of its important performance indicators. Too high or too low pH will affect the long-term storage and service life of paper.
Tensile strength and tear strength: Pure wood pulp jumbo paper needs to have certain tensile strength and tear strength to ensure that it is not easy to be damaged and deformed during use and processing.
Paper density and viscosity: Paper density and viscosity are important factors affecting paper quality and printing quality, which need to be tested with relevant testing instruments.
Color difference and color fastness: Pure wood pulp jumbo paper needs to have good color difference and color fastness during the printing process, otherwise it will affect the color effect of the printed matter.
pH value: The pH value of pure wood pulp shaft paper is also an important detection index, which needs to be kept within a certain range to avoid the impact on the environment and human health.
Testing instruments and methods
For different performance indicators of pure wood pulp jumbo paper, the following test methods and instruments can be used for detection:
Whiteness: Tested with a Whiteness Meter, according to ISO 2469 or TAPPI T524 standard.
Flatness: use a flatness Tester to test according to ISO 8791-2 or TAPPI T555 standard.
Thickness and weight: Tested using a Thickness Gauge and a weighing instrument, according to ISO 534 or TAPPI T411 standards.
Durability: Tested with an abrasion Tester and tested according to ISO 3783 or TAPPI T476 standards.
Moisture content: Tested with a Moisture Meter according to ISO 287 or TAPPI T412 standards.
pH: Use a pH Tester to test according to ISO 6588 or TAPPI T509 standards.
Tensile and tear strength: Tested using Tensile Testing Machine and tearing strength testing machine, according to ISO 1924 or TAPPI T494 standard.
Paper Density and Viscosity: Tested using a density meter and a viscometer, according to ISO 534 or TAPPI T460 standards.
Color difference and color fastness: use a color difference meter and a color fastness Tester to test according to ISO 5631 or TAPPI T524 standards.
pH value: use a pH Tester to test, and test according to ISO 6588 or TAPPI T509 standards.
NBCHAO reminds you: Different performance indicators require different testing methods and instruments, and different countries and regions may have different testing standards and specifications. Therefore, when performing performance testing of pure wood pulp jumbo paper, you need to choose a suitable testing method and instrument, and perform the test in accordance with the relevant standards. At the same time, the test equipment needs to be calibrated and verified to ensure the accuracy and reliability of the test results.
