Product Categories

Contact Us

Zhejiang Dongda Paper Co.,Ltd

Add:Gaoyang Village, Chunjiang Avenue, Fuyang District, Zhejiang Province, 311421 China


News

Home > News > Content
Duplex Board Grey Back Cardboard Thickness Uniform
Sep 18, 2017

Duplex Board Grey Back Cardboard thickness uniform

Do you know the performance requirements of the gray board?

Gray cardboard is widely used in the packaging market occupies a large part of the space, there are many gray-bottomed double-board manufacturers rise. Gray at the end of the board is good, but also qualified products to be able to play its due role.

Gray dual-board specifications are certain requirements, in the production of time to take into account its use, to strengthen a certain performance. It should have the following requirements in the use of performance: gray cardboard

1, to have a loose paper and good plasticity, to ensure that the applicable binding pressure, bronzing characteristics;

2, to have a uniform thickness of cardboard and deformation of the performance, to ensure the normative design of the cover;

3, to have a good stiffness and good mechanical strength, in order to maintain the binding of books, pictures of the practicality and durability;

4, to have a certain layer of strength to meet the needs of the process of binding process;

5, cardboard itself is not allowed to use plant starch adhesive bonding, to prevent the growth of starch mold.

Different types of paperboard is the difference between the general outsiders are unable to distinguish the details of which. For example, whiteboard and gray paper white cardboard characteristics of the difference, many people do not understand. So, we paper as a senior gray-bottom dual-board manufacturers. Now for everyone about science, whiteboard and gray on the white cardboard characteristics of the difference.

White paper is made from the pulp and the bottom of the pulp in the multi-round multi-dryer paper machine or long round net mixed paperboard machine made of copy. The pulp is also generally divided into the pulp (surface layer), the second layer, the third layer, the four layers, the paper pulp ratio of each layer is different, and the fiber ratio of each layer of pulp, Quality is different.

Gray bottom double board manufacturers

Gray under the white cardboard has a high degree of stiffness, bursting and smoothness (but embossed pattern of white cardboard, except), the paper is flat, the appearance of clean, not allowed to have streaks, spots and other paper disease, There is a phenomenon of warping deformation.