Whiteboard paper generally refers to the nature of the appropriate printing printing eligibility, contains the transport, storage in the process of some features.
And its printing eligibility refers to the necessary conditions, the quality of generic must print should have physical and chemical induction of reflection.
The nature of the white board is necessary to reflect better print quality and color effect.
Paper in the process of drum operation, can make plate on adsorption of ink transferred to the surface, to obtain complete and plump, level clear graphic imprinting.
White board paper printing eligibility includes: the pore structure and the absorbency of paper;
The smooth degree of paper and compressibility;
The surface strength of paper.
The paper acid alkali and the moisture content of paper and scalability.
White paper is made up of a variety of plant fiber interweave each other and become a reticular structure, in this kind of mesh structure, pore between fiber and then add some filler, rubber, ink to meet should have the characteristics of the paper itself.
In packing is to improve the whiteness of paper, smooth degree, opacity;
Participate in rubber is make the paper must be water resistance, not easy moist by water or other liquid;
Take part in the pigment, make white board paper has higher whiteness.
White board paper pore structure is the warp and woof of paper absorbs ink, is one of the key factors of newspaper printing soak dry crystal.
Therefore, to understand the absorbency of paper, it is necessary to first understand the pore structure of paper.
Due to the pore structure of the white board paper and ink penetration amount and penetration velocity, print smooth degree, ink soak solidification and boring and print quality has a close relationship.
Whiteboard paper primary pore structure including clearing rate, the paper said clearing rate in the paper the ratio of air volume and the volume of paper, paper clearing rate can be obtained by calculation method and experimental measurement.
White board paper clearing rate = volume of air inside (
Per unit area)
Per unit area)
X from the above equation, the white paper inside the volume of air, the greater the marked white board space rate is higher, it also verifies the whiteboard paper pore structure of the situation, the less paper fiber, mixed more hydrophobic, the greater the space between the fiber and whiteboard paper pore structure is the worse.
On the contrary, the paper fiber, the more intertwined, the smaller the space between the fibers, white board paper pore structure, the better.
Paper printing ink solidification and boring is add the rate with space and speed up, its absorbency also increased, but the ink gloss on paper is add the rate with space.
White paper with pore structure, white board paper porous structure determines the permeability, hygroscopicity, absorption and compressibility, the paper can absorb water, the warp and woof of materials such as printing ink.
In order to ensure good printing quality and printing effect, demand printing paper has good absorbency.
The absorbency of whiteboard paper refers to the touch and make the ink transfer printing paper and ink to the paper surface, ink into the nature of the white board and be absorbed.
Paper clearing rate, the greater the structure is loose, the more the amount of ink absorption, the opposite less, this is what we often call the reasons of the poor white paper good absorbency.
Dongguan industrial cardboard composite factory research and development, production and sales of industrial composite board.
The main products: industrial cardboard, composite board, double gray cardboard
, whole gray paper, gray highlights cardboard, coated paper, kraft paper, board, special paper, industrial cardboard, composite board, etc.
Our factory has the abundant technical force and professional production team, has been adhering to the 'do customers suitable products, satisfactory service to clients' spirit of enterprise, won the trust of many customers and support.
We will continue to high-quality products, satisfactory service to meet the various needs of customers.
Warmly welcome new and old customers calls negotiate!
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