Method for preparing paper through waste textile fibers

A textile fiber and paper technology, which is applied in the field of paper preparation from waste textile fibers, can solve the problems of insufficient fiber binding force, affecting paper evenness, and long length, and achieve the effects of improving evenness, increasing hydrophilicity, and simple process

Inactive Publication Date: 2013-06-12
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not only the length is large, but most of them are hydrophobic, and the water can be filtered quickly, which will easily lead to insufficient bonding between fibers and affect the evenness of the paper
At present, no one has proposed a complete and effective method to prepare high-performance paper for waste textile fibers and products, so as to achieve the purpose of recycling and high value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Method for preparing paper from waste cotton textile fibers and products

[0054] Because more than 90% of cotton fiber is cellulose, cotton fiber is an excellent raw material for papermaking. When using waste cotton textile fibers and products to prepare paper, you only need to solve the problems of loosening, cleaning, and grinding. The pulp can be made after beating, and the paper with good performance can be made by simple hot pressing.

[0055] (1) Classify the waste cotton textile fibers and products according to the fiber components, and remove the hard debris in the textile waste, including buttons, zippers, metal decorations and other large and hard non-fibrous substances;

[0056] (2) For the sorted cotton fibers and products, a porcupine cotton opener with rectangular blades is adopted, which adopts multi-package taking, fine grasping, gradual opening, free blowing, early falling and less breaking, uniform mixing, combing instead of beating, The principle of...

Embodiment 2

[0066] Method for preparing paper from waste polyester textile fibers

[0067] (1) Use discarded polyester textile fibers and products as raw materials to remove hard debris in polyester textile waste, including large and hard non-fibrous substances such as buttons, zippers, and metal decorations;

[0068] (2) The sorted fibers and products are loosened and removed by sawtooth drums. According to the process principle of more combing, less beating, less removal and more recovery, the drum speed is 1300-1500 rpm;

[0069] (3) Cleaning the fibers after opening and removing impurities, including wet slag removal, sterilization, and bleaching;

[0070] a Wet slag removal: vertical pressure sieve is used to remove slag, the pulp concentration is 0.02%-2.5%, the pulp concentration is 0.02%-2.5%, and the pulp flow rate is 100-400m 3 / h, the slag discharge rate is 10%-35%, the slurry inlet pressure is 0.08-0.25MPa, the slurry outlet pressure is 0.07-0.24MPa, the operating pressure di...

Embodiment 3

[0078] Method for preparing paper from waste textile fibers and products

[0079] (1) Classify the waste mixed textile fibers and products according to the fiber components, and remove the hard debris in the mixed textile waste, including buttons, zippers, metal decorations and other large and hard non-fibrous substances;

[0080] (2) The sorted fibers and products are loosened and removed by sawtooth drums. According to the process principle of more combing, less beating, less removal and more recovery, the drum speed is 1200-1800 rpm;

[0081] (3) Cleaning the fibers after opening and removing impurities, including wet slag removal, sterilization, and bleaching;

[0082] a Wet slag removal: vertical pressure sieve is used to remove slag, the pulp concentration is 0.02%-2.5%, the pulp concentration is 0.02%-2.5%, and the pulp flow rate is 100-400m 3 / h, the slag discharge rate is 10%-35%, the slurry inlet pressure is 0.08-0.25MPa, the slurry outlet pressure is 0.07-0.24MPa, ...

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Abstract

The invention relates to a method for preparing paper through waste textile fibers. The method comprises the following steps of: taking the waste textile fibers and products as raw materials; sorting, opening, decontaminating, cleaning and accurate grinding the waste textile fibers; modifying the fibers; preparing sizes; forming paper sheets; hot pressing; and hot pressing and preparing the paper sheets at the temperature of 100-280 DEG C and the pressure of 0.2-1.2 KN/cm, wherein the basis weight is 13-48g/m<2>, the tightness is 0.31-0.78g/cm<3>, the evenness index is 62-78, the tensile index is 27-223Nm/g, the tear index is 7.6-26.2mN.m<2>/g, the burst index is 2.67-7.15kPa.m<2>/g, and a surface contact angle of static water is 20-90 degrees. Compared with traditional plant fiber papermaking, the performance is improved greatly. The method can be realized through equipment of textiles and paper, and the process flow is simple, the adaptability is strong. The method provides a recycling processing way for the waste textile fibers, and also provides new raw materials for pulping and papermaking.

Description

technical field [0001] The invention relates to a method for preparing paper from waste textile fibers, in particular to a method for preparing high-performance paper from waste textile fibers and products. Background technique [0002] The textile industry is a traditional industry in my country, and it is also a pillar industry related to the national economy and people's livelihood. According to national and industry statistics, in 2010, my country's textile fiber processing volume was 41.3 million tons. Calculated based on more than 60% of domestic demand, the annual domestic fiber consumption is about 25 million Ton. Considering the limited cotton resources, the rapid growth of chemical fiber consumption, and the decrease in the proportion of cotton-type fiber consumption year by year, it is expected that the absolute value of cotton-type fiber consumption per capita will still increase year by year. During the "Twelfth Five-Year Plan" period, the per capita textile fib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21D1/30D21H11/12D21C5/00
CPCY02W30/64
Inventor 徐卫林黄良辉
Owner WUHAN TEXTILE UNIV
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