Lightweight paper made from high-proportion bamboo pulp and making method of lightweight paper

A light paper, high proportion technology, applied in the field of papermaking, can solve the problems of high production cost, achieve the effect of low product cost, small pollution load, and expand the range of raw materials

Active Publication Date: 2015-09-30
GUANGXI UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are relatively few light-weight printing paper companies in China, and most of the light-duty papers produced by these ent

Method used

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  • Lightweight paper made from high-proportion bamboo pulp and making method of lightweight paper
  • Lightweight paper made from high-proportion bamboo pulp and making method of lightweight paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The chemical bamboo pulp that is 35 ° SR, ISO whiteness of 84% and the mechanical pulp that is 34 ° SR, ISO whiteness of 65% and 40 ° SR, ISO whiteness of 40 ° SR are beaten respectively. 70% long-fiber CTMP pulp is prepared according to the ratio of 50:45:5 to prepare 5000 kg of mixed pulp, add 60 kg of starch, 500 kg of talcum powder, 35 kg of dispersed rosin gum, 35 kg of aluminum sulfate and an appropriate amount of polyacrylamide to prepare the net size , the amount of polyacrylamide added is 0.2kg / t paper, the amount of disperse rosin glue is the amount added according to the sizing degree of 0.5mm, the quality index of the screen size is pH 5.8, the concentration is 0.7-0.9%, and the buckle degree is 52 °SR, net pulp is produced by 3940mm fourdrinier paper machine.

Embodiment 2

[0022] The chemical bamboo pulp with 30°SR and ISO brightness of 80% and the mechanical pulp with 39°SR and ISO brightness of 70% and the pulp with 35°SR and ISO brightness of 75% were beaten respectively. The long-fiber CTMP pulp is prepared according to the ratio of 55:40:5 to prepare 5000 kg of mixed pulp, add 60 kg of starch, 500 kg of talcum powder, 40 kg of dispersed rosin gum, 30 kg of aluminum sulfate and an appropriate amount of polyacrylamide to prepare the net size, polypropylene The amount of amide added is 0.2kg / t paper, the amount of disperse rosin glue is added according to the sizing degree of 0.5mm, the quality index of the screen size is pH 6.2, the concentration is 0.7-0.9%, and the buckle degree is 55°SR. The screen pulp is produced by a 3940mm fourdrinier paper machine.

[0023] The main process parameters of the paper machine papermaking machine used in embodiment 1 and embodiment 2 are as shown in table 1:

[0024] Table 1 Main process parameters table...

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Abstract

The invention discloses a lightweight paper made from a high-proportion bamboo pulp and a making method of the lightweight paper and relates to the papermaking field. The lightweight paper is prepared from a mixed pulp of a chemical bamboo pulp, a mechanical pulp and a long-fiber CTMP pulp in the weight ratio of (50-55): (45-40): (5-10), and the following accessories in percentage by weight: 1.2% of starch, 10% of talcum powder, 0.6%-0.8% of dispersed rosin size, 6%-7% of aluminum sulfate, and 0.2kg/t of polyacrylamide PL1510; in the papermaking process: the indices, such as beating degree and ISO whiteness, of the chemical bamboo pulp and the mechanical pulp before blending are controlled; the following quality indices of the pulp applied to a screen are controlled: pH value of 5.8-6.2, concentration of 0.7-0.9% and beating degree of 47-55degree S. According to the lightweight paper, the high-proportion bamboo pulp is adopted, the raw material range of the lightweight paper is expanded, the product cost is low, the product is pure environmentally friendly and green, and the pollution load is low.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a light-duty paper prepared with a high proportion of bamboo pulp and a method for making the same. Background technique [0002] As a new type of printing paper, lightweight printing paper is more and more widely used in the printing of books and periodicals because of its high bulk, stiffness, opacity and good printability. At present, most of the printing paper used by publishing houses still use offset paper; although some high-end printed products use light cultural paper (Monken paper), they are also imported at high prices; according to statistics, my country imports offset printing paper from abroad every year 1.6 million tons, import 500,000 tons of light high-grade cultural paper, 300,000 tons of Monken paper, and consume 15.3 billion yuan in foreign exchange every year. Therefore, replacing imported offset paper and light cultural paper with domestic light cultural...

Claims

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Application Information

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IPC IPC(8): D21H17/28D21H17/55D21H17/21D21H15/10
Inventor 蒙衍强
Owner GUANGXI UNIVERSITY OF TECHNOLOGY
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