Unlock instant, AI-driven research and patent intelligence for your innovation.

Paper diaper leftover material absorbing layer fiber reusing papermaking method

A fiber recycling and diaper technology, which is applied in the field of pulp and paper making, can solve problems such as difficulty in fiber recycling of an absorbent layer, avoid production problems and paper sheet defects, achieve significant effects, and improve social and economic benefits.

Active Publication Date: 2016-12-07
SHAANXI UNIV OF SCI & TECH
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a papermaking method for recycling the fibers of the leftover absorbent layer of diapers, which solves the problem of difficulty in recycling the fibers of the absorbent layer of the leftover diapers

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
  • Paper diaper leftover material absorbing layer fiber reusing papermaking method
  • Paper diaper leftover material absorbing layer fiber reusing papermaking method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The absorbent layer of the diaper is crushed and dissolved in water, and then bentonite and cationic polyacrylamide are added respectively. The amount of bentonite in the bentonite solution is 0.1% of the mass of the diaper; the amount of cationic polyacrylamide in the cationic polyacrylamide solution is diaper fiber 0.1% of the mass, and fully stirred, and then deflagged, and the speed of flaking reached 25,000 revolutions to obtain fibers for the absorbent layer of diapers, and made paper with a concentration of 0.3g / L on the net.

Embodiment 2

[0031] The absorbent layer of the diaper is crushed and dissolved in water, and then bentonite and cationic polyacrylamide are added respectively. The amount of bentonite in the bentonite solution is 0.2% of the mass of the diaper; the amount of cationic polyacrylamide in the cationic polyacrylamide solution is diaper fiber 0.09% of the mass, and fully stirred, and then deflagged, and the number of flaking revolutions reached 20,000 revolutions to obtain fibers for the absorbent layer of diapers, which were used for papermaking at an online concentration of 0.3g / L.

Embodiment 3

[0033] The absorbent layer of the diaper is crushed and dissolved in water, and then bentonite and cationic polyacrylamide are added respectively. The amount of bentonite in the bentonite solution is 0.3% of the mass of the diaper; the amount of cationic polyacrylamide in the cationic polyacrylamide solution is diaper fiber 0.08% of the mass, and fully stirred, and then deflagged, and the number of flaking revolutions reached 10,000 revolutions to obtain fibers for the absorbent layer of diapers, which were used for papermaking at an online concentration of 0.3g / L.

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 paper diaper leftover material absorbing layer fiber reusing papermaking method; the method comprises the steps: crushing a paper diaper powder absorbing layer, then dissolving in water, then adding bentonite and a cationic polyacrylamide solution, stirring fully, untwining, to obtain paper diaper fibers, and papermaking with the approach flow concentration of 0.3 g / L. According to the paper diaper leftover material absorbing layer fiber reusing papermaking method, the bentonite and the cationic polyacrylamide are used for treating the paper diaper absorbing layer fibers, the bentonite makes a high-water-absorbent resin gel structure destroyed to be crosslinked and adsorbed on the fibers, the bonding strength between the fibers is enhanced, at the same time, the gel is removed, and production problems and paper sheet defects are effectively avoided; moreover, the cationic polyacrylamide can generate hydrogen bonding with the fibers, and a network structure is formed, so that the role in enhancing the strength properties of paper is played. The method effectively recycles paper diaper leftover material cushion layers, and greatly saves resources.

Description

technical field [0001] The invention belongs to the technical field of pulping and papermaking, and in particular relates to a papermaking method for recycling fibers of absorbent layer scraps of diapers. Background technique [0002] With the improvement of people's material living standards and the convenience of life, the use of diapers by babies and the elderly is increasing year by year. In the process of producing diapers, a lot of leftover materials and waste products with substandard performance will be produced. Direct disposal of these materials will cause a great waste of resources and also cause certain pollution to the environment. The main component of diapers, the absorbent layer, is composed of fluff pulp fibers and super absorbent resins. If it is recycled for papermaking, it will be beneficial to environmental management and save resources. However, the fibers in the absorbent layer of diapers are fluffy fibers, which have poor paper-forming properties and...

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
Patent Type & Authority Applications(China)
IPC IPC(8): D21H11/14D21H17/68D21H17/37
CPCD21H11/14D21H17/37D21H17/68
Inventor 孟卿君张素风杨保宏刘丽娜
Owner SHAANXI UNIV OF SCI & TECH