Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for preparing high-strength corrugated base paper from straws

A corrugated base paper, high-strength technology, applied in papermaking, paper machines, textiles and papermaking, etc., can solve the problems affecting the strength performance of corrugated base paper, poor bonding force between fibers, etc., achieve rich raw materials, increase strength, and simple production process Effect

Active Publication Date: 2018-02-27
山东科迈生物制浆有限公司
View PDF9 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention enables the whole process of corrugated paper production to be carried out under normal pressure conditions, which overcomes the pulping mode of high temperature, high pressure, and high chemical liquid volume commonly used in the pulp and paper industry, which is highly efficient, energy-saving, and environmentally friendly. Pulp, the bonding force between fibers is poor after paper making, which directly affects the strength performance of corrugated base paper

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing high-strength corrugated base paper from straws
  • Method for preparing high-strength corrugated base paper from straws
  • Method for preparing high-strength corrugated base paper from straws

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] High-strength corrugated base paper was prepared from corn stalks. Dry the corn stalks in the sun and remove the leaves, separate the husks and straw pith, process the husks into small pieces of 0.5cm×2cm, soak them in 3% NaOH solution for 4 hours, the ratio of the volume of the solution to the mass of the husks is 7:1 , the alkali-treated straw is subjected to two-stage refining, the first-stage refiner disc gap is 0.2mm, and then the second-stage refiner is carried out, the refiner disc gap is 0.02mm, and the two-stage refiner is screened after the two-stage refining pulp, the sieve aperture is 0.3mm, the straw pulp that is sieved is washed to neutrality, and dehydrated for subsequent use;

[0043] After crushing the straw, pass through a 20-mesh sieve, mix the straw powder with 4% NaOH solution until the material concentration is 2%, soak at 35°C for 5 hours, wash with water until neutral, add water until the mass fraction of straw is 1.5 %, add peracetic acid until...

Embodiment 2

[0046] High-strength corrugated base paper was prepared from corn stalks. Dry the corn stalks in the sun and remove the leaves, then separate the husks and pith. The husks are processed into small pieces of 0.4cm×3cm, soaked in 5% NaOH solution for 6 hours, and the ratio of the volume of the solution to the mass of the husk is 5:1. , the alkali-treated straw is subjected to two-stage refining, the first-stage refiner disc gap is 0.4mm, and then the second-stage refiner is carried out, the refiner disc gap is 0.03mm, and the two-stage refiner is screened after the two-stage refining pulp, the sieve aperture is 0.35mm, and the straw pulp that is sieved is washed to neutrality, dehydrated for subsequent use;

[0047] After crushing the straw, pass through a 20-mesh sieve, mix the straw powder with 1% NaOH solution to a material concentration of 4%, soak at 20°C for 2 hours, wash with water until neutral, add water until the mass fraction of the straw is 1 %, add peracetic acid u...

Embodiment 3

[0050] High-strength corrugated base paper was prepared from corn stalks. After the corn stalks are air-dried and defoliated, the husks and pith are separated. The husks are processed into small sections of 0.3cm×5cm and soaked in 6% NaOH solution for 10 hours. The ratio of the volume of the solution to the mass of the husks is 8:1. The alkali-treated straw is subjected to two-stage refining, the first-stage refiner has a grinding gap of 0.5 mm, and then the second-stage refining is performed, and the refining machine gap is 0.04 mm, and the pulp is sieved after the two-stage refining , the sieve aperture is 0.4mm, the straw pulp that sieves is washed to neutrality, and dehydrated for subsequent use;

[0051] After crushing the straw, pass through a 20-mesh sieve, mix the straw powder with 5% NaOH solution until the material concentration is 3%, soak at 40°C for 10 hours, wash with water until neutral, add water until the mass fraction of straw is 2 %, add peracetic acid unti...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for preparing high-strength corrugated base paper from straws and relates to the field of cellulose papermaking. The method comprises the following steps: drying straws, separating straw peel and straw pulp, treating the straw peel into sections, soaking in a NaOH solution or a KOH solution, performing secondary pulping, screening the pulp after pulping, washing tobe neutral after pulp screening, and dewatering for later use; grinding the straw pulp, mixing the straw pulp powder with the NaOH solution or the KOH solution, soaking the material and washing to beneutral, adding water to obtain straw pulp slurry, adding peroxyacetic acid into the straw pulp slurry or adding a hydrochloric acid solution into the straw pulp slurry to regulate the pH value of the straw pulp slurry to be 3 or less; and stirring or shaking the straw pulp slurry, washing to be neutral, mixing with the straw peel pulp, and making the corrugated base paper by utilizing the mixedpaper pulp. According to the method disclosed by the invention, the selected raw materials are rich, the production process is simple, the reaction time is short, the time consumption is low, the energy consumption is low, and recycling of agricultural wastes is facilitated.

Description

technical field [0001] The invention discloses a method for preparing high-strength corrugated base paper, and relates to the field of papermaking by utilizing cellulose, in particular to a method for preparing high-strength corrugated base paper from straw. Background technique [0002] Corrugated cardboard is widely used in people's production and life because of its light weight, low price, easy production, and recyclability. Since the packaging container made of corrugated cardboard has its unique properties and advantages for beautifying and protecting the goods inside, it has achieved great success in the competition with various packaging materials. Nowadays, corrugated paper has become an indispensable packaging paper for all walks of life. Especially in recent years, with the prevalence of online shopping in my country, the demand for packaging paper has increased sharply, which has greatly promoted the development of the corrugated paper production industry. Corru...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): D21H11/12D21F11/12
CPCD21F11/12D21H11/12
Inventor 陈洪雷赵鑫孔凡功王守娟刘玉吴芹
Owner 山东科迈生物制浆有限公司
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com