a living paper

Abstract

The invention relates to a household paper with smooth surface and good water absorption, which comprises upper and lower surface layers and a core layer, the core layer is located between the upper and lower surface layers, the reverse side of the surface layer is in contact with the core layer, The basis weight is equal, the basis weight of the core layer is greater than the surface layer, and the difference between the two sides of the surface layer is -60~-20%. Ply paper provides better softness. The basis weight of the core layer is relatively high, and a rough surface can be obtained by controlling the wrinkling process, which provides high water absorption for the multi-layer paper. The difference between the two sides of the surface layer is relatively large, and the smooth side of the surface layer is located Surface, the rough surface of the surface layer is in contact with the core layer, the difference between the rough surface of the surface layer and the surface of the core layer is small, and the difference between the two sides of the core layer is small. Since the reverse surface of the surface layer and the surface of the core layer are rough, the difference between The friction force is large, and the phenomenon of delamination is not easy to occur, so that the overall water absorption of the multi-layer paper is strong, the surface is soft, and it is not easy to delaminate.

Description

technical field [0001] The invention relates to the field of household paper, in particular to a household paper with a smooth surface and good water absorption. Background technique [0002] The present invention relates to a tissue structure, and more particularly to a multi-ply tissue structure. Examples include consumer products such as toilet paper and facial tissue. Multi-layer paper structures are well known in the art. Such multi-layer structures are three or more layers, the layers being arranged in face-to-face relationship and bonded to each other, including bonding or, for example, by Machine pressing formed by embossing the pattern. With the improvement of people's living standards, people have higher and higher requirements for the functions of household paper, which not only require the strength of the paper to be guaranteed, but also require the paper to be soft and water-absorbent. Strength is: the ability of a paper web to maintain its physical integrity...

AI Technical Summary

Problems solved by technology

In order to achieve high strength and water absorption, the basis weight of the paper cannot be so low that the softness of the paper is compromised

Therefore, this method cannot control paper strength, softness and water absorption very well

At the same time, when the basis weight of the core layer is high, the difference between the two sides of the paper will be large, and multi-layer paper is prone to paper delamination.