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What are the factors that affect paperboard stiffness?

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What are the factors that affect paperboard stiffness?

What are the factors that affect paperboard stiffness?


For boxboard and white paper, stiffness is a basic performance indicator.


Paper stiffness is a very important indicator, a direct impact on the size of the crease stiffness (another factor for the die-cutting pressure), thus affecting the finished product molding. Stiffness is small, easy to crush the finished product, warping; stiffness is large, difficult to shape the finished product.


Packaging paper on the stiffness requirements, different quantitative paper stiffness is different, the general and the thickness of the square is proportional to the relationship between the higher the thickness of the cardboard


Factors that affect bending stiffness


There are many factors that affect stiffness. The thickness and elastic modulus of the cardboard is the most fundamental factor affecting the cardboard or paper stiffness. When the thickness is constant, the stiffness increases with increasing tightness. When the weight does not change, it decreases slightly with the increase of tightness, but the general trend is net increase.


Paper cardboard bending stiffness tester

Paper cardboard bending stiffness tester using high-tech digital motor and streamlined and practical transmission structure, measurement and control system using a single microcomputer as the central processing unit digital power, with the corresponding application software to control the whole machine, data acquisition and data processing , The report content has bending force.



technical standard

ISO 5628, GB2679.3 QB / T1051 ISO 2493 "Determination of bending stiffness of paper and paperboard"

GB / T 22364 "Determination of Bending Stiffness of Paper and Paperboard" and other relevant standards and regulations

Pub Time : 2017-03-13 14:44:02 >> News list
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