Production process for multilayer paper
A production process, multi-layer paper technology, applied in the direction of mechanical processing/deformation, etc., can solve the problems of large difference in thickness sum and weaken the thickness contribution of multi-layer paper, so as to achieve the effect of good appearance and high thickness
Active Publication Date: 2013-12-11
GOLD HONG YE PAPER
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[0003] However, since the paper will be stretched and squeezed from the rewinding roller during the rewinding process of the paper, the stretching and squeezing of the paper by the rewinding roller will not only make the wrinkles on the surface of the single-layer paper tend to be smooth , and it will also make the inter-fitting of the wrinkles between the single-layer papers closer, and the wrinkles that tend to be flattened and the tighter fitting will weaken the contribution of paper wrinkles to the thickness of the multi-layer paper, resulting in the multi-layer after stacking The overall thickness of the paper is quite different from the sum of the thicknesses of the single-layer creped papers that make up the multi-layer paper
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[0013] See figure 1 , the production technology of multilayer paper provided by the present invention, it comprises the steps:
[0014] (1) copying to form single-layer paper 10;
[0015] In this embodiment, the process of making the single-layer paper 10 includes a step of creping the paper, so that the single-layer paper 10 produced has a surface wrinkled structure.
[0016] It can be understood that in the present invention, there is no specific requirement for the papermaking process of the single-layer paper 10 , and any existing papermaking process can be used, as long as the single-layer paper 10 with surface wrinkle structure can be produced.
[0017] (2) Winding the single-layer paper 10 to form a single-layer paper roll 20;
[0018] Usually, the papermaking and winding of paper belong to two different processes of the same paper machine. Therefore, in general, in this embodiment, the papermaking and winding steps of the single-layer paper 10 are performed on the sa...
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The invention relates to a production process for multilayer paper, comprising the following steps of: providing an initial multilayer paper roll, and unwinding the initial multilayer paper roll to obtain initial multilayer paper which is formed by laminating at least two single-layer paper layers; independently drawing each single-layer paper in the initial multilayer paper, so as to recover the initial multilayer paper to at least two layers of independent single-layer paper; and laminating the at least two layers of independent single-layer paper to form secondarily-laminated multilayer paper. Compared with the prior art, the multilayer paper product produced according to the production process for multilayer paper is high in thickness and good in appearance.
Description
technical field [0001] The invention relates to a production process of multilayer paper. Background technique [0002] The traditional production process of multi-layer paper generally includes papermaking, primary rolling, rewinding and post-processing into multi-layer paper products. The papermaking section is the process of making pulp into a single-layer base paper roll. The first roll is to wind the single-layer paper formed in the papermaking section to form a single-layer base paper roll. The rewinding section is a plurality of single-layer base paper rolls. The process of rewinding into a multi-layer paper roll, and the post-processing section is the process of processing the multi-layer paper roll into products of specific specifications according to needs. Usually, in order to increase the thickness of paper products, the paper is creped in the papermaking section so that the single-layer paper presents wavy wrinkles. In this way, in the rewinding section, multip...
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IPC IPC(8): B31F1/00
Inventor 亚历克斯于洁苏菲娅·陈张欣俐
Owner GOLD HONG YE PAPER