Natural-color straw pulp with improved tearing index, freeness and tensile index, and stable performance

Abstract

The invention relates to natural-color straw pulp with improved tearing index, freeness and folding strength, and stable performance, in particular to natural-color straw pulp and application thereof in mixed pulp and paper products. The straw pulp has the advantages that: color phase or whiteness of the straw pulp is remarkably improved; the bulk and air permeability are high; and the acquired data of the sizing agent of the natural-color straw pulp is more stable because of small quality fluctuation of sizing agent.

Description

technical field [0001] The present invention relates to a kind of natural color straw pulp with improved tear index, freeness and tensile index and stable performance. Specifically, the present invention relates to a kind of said natural color straw pulp and their mixed pulp , Application in paper products. Background technique [0002] In daily life, paper can be divided into cultural paper, industrial paper, household paper and special paper according to its use, among which cultural paper can be simply divided into uncoated paper and coated paper. Uncoated paper is called uncoated paper, such as newsprint, offset paper, electrostatic copy paper and writing paper, etc.; coated paper is called coated paper, such as coated paper, calendar paper, Glossy paper, glass cardboard, etc. Their manufacture includes the following steps: [0003] Pulping section: raw material selection→cooking and separating fibers→washing→bleaching→washing and screening→concentrating or copying in...

AI Technical Summary

Problems solved by technology

The relationship between beating degree and pulp fiber composition and fracture length, "Paper and Papermaking" No. 03, 2004 This paper analyzes the influence of the same or different beating degree values ​​on the pulp fiber composition and fracture length, and the detection method of beating degree The sum of the data and its function is far less effective than the detection method and data of the sieve fraction percentage of the pulp fiber composition and its function, and it is not as effective as the detection method and data of the fracture length and its function

[0017] In summary, straw pulp has the disadvantages of low freeness, low tear index and tensile index, and large fluctuations in pulp quality; at the same time, bleaching and beating have obvious effects on the physical and chemical properties of straw pulp, resulting in the inability of straw pulp. stable performance

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