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