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Method for preparing high-strength modified fibers from willow bark leftovers

A modified fiber, high-strength technology, used in chemical production of bast fibers, wood treatment, wood heating, etc., can solve the problems of hard and brittle cellulose texture, narrow use range, small fiber length, etc., to increase flexibility , save resources, improve the effect of bonding

Inactive Publication Date: 2019-12-20
阜阳创启工艺品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, production tools, daily necessities, and artworks made of willow have become more and more popular because of their strong folk culture. Willow processed products are either woven or hot-pressed for stable deformation, but Regardless of the processing method, it is necessary to remove the bark of wood and willow rattan when preparing the product, so as to obtain a smooth surface of the product, which is easy for post-processing, and improves the practicability and decoration of willow products; Most of the veneer is discarded or used as fuel, which causes a lot of waste of resources and also pollutes the environment
[0003] The surface of willow veneer is a large amount of wood structure, and the inside contains a large amount of cellulose components, but the texture of cellulose in willow veneer is hard and brittle, poor in elasticity, low in strength, and has a small range of application; existing patent document CN106958159A discloses an improved The preparation method of willow bark fiber, specifically, the willow bark is steamed, treated with acid and alkali, and then fiberized, and then the obtained fiber is soaked in the treatment solution, so that the blending and dyeing properties of the willow bark fiber are improved , but the strength is still low, and some cheap commodities can only be prepared after blending; the existing patent document CN107029675A discloses a method of using eucalyptus bark to prepare oil-absorbing fibers, and specifically discloses that the pulp is obtained after the bark is cooked and decomposed. pulp, and then drying and lipophilic and hydrophobic modification of the pulp, so that the resulting fiber has strong lipophilic and hydrophobic properties, but the length of the fiber obtained in the patent document is small, and the strength is too low, so it can only be used for simple oil absorption treatment. Narrow range of use

Method used

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  • Method for preparing high-strength modified fibers from willow bark leftovers

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Effect test

Embodiment 1

[0020] A method for preparing high-strength modified fibers using willow bark leftovers, comprising the following steps:

[0021] (1) Crushing: collect the leftovers of willow bark, crush them to a size of 3-10cm, clean the sediment, protect the machine, facilitate post-processing, improve the processing effect, and obtain crushed materials;

[0022] (2) Cooking: Put the crushed material in a container, add water to immerse the crushed material, heat to 80°C, keep warm for 10 minutes, continue to heat to 120°C, keep warm for 30 minutes, and use high temperature and high pressure treatment to make the water quickly enter the willow bark, which can reduce The willow veneer is hard and brittle, which increases flexibility, take it out, drain, and get the cooking material;

[0023] (3) Softening: put the cooked material in a fiberizing machine, fiberize for 25 minutes, remove the woody structure on the surface, extract the fiber components in the willow bark, and then place it in ...

Embodiment 2

[0028] A method for preparing high-strength modified fibers using willow bark leftovers, comprising the following steps:

[0029] (1) Crushing: collect the leftovers of willow bark, crush them to a size of 3-10cm, clean the sediment, protect the machine, facilitate post-processing, improve the processing effect, and obtain crushed materials;

[0030] (2) Cooking: Put the crushed material in a container, add water to immerse the crushed material, heat to 85°C, keep warm for 13 minutes, continue to heat to 125°C, keep warm for 35 minutes, through high temperature and high pressure treatment, the water will quickly enter the willow bark, which can reduce The willow veneer is hard and brittle, which increases flexibility, take it out, drain, and get the cooking material;

[0031] (3) Softening: put the cooking material in a fiberizing machine, fiberize for 28 minutes, remove the wooden structure on the surface, extract the fiber components in the willow bark, and then place it in ...

Embodiment 3

[0036] A method for preparing high-strength modified fibers using willow bark leftovers, comprising the following steps:

[0037] (1) Crushing: collect the leftovers of willow bark, crush them to a size of 3-10cm, clean the sediment, protect the machine, facilitate post-processing, improve the processing effect, and obtain crushed materials;

[0038] (2) Cooking: Put the crushed material in a container, add water to immerse the crushed material, heat to 90°C, keep warm for 15 minutes, continue to heat to 130°C, keep warm for 40 minutes, and use high temperature and high pressure to make the water quickly enter the willow bark, which can reduce The willow veneer is hard and brittle, which increases flexibility, take it out, drain, and get the cooking material;

[0039] (3) Softening: put the cooked material in a fiberizing machine, fiberize for 30 minutes, remove the woody structure on the surface, extract the fiber components in the willow bark, and then place it in the tyroso...

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Abstract

The invention mainly relates to the technical field of processing of waste wood leftovers, and discloses a method for preparing high-strength modified fibers from willow bark leftovers. The method comprises the following steps: crushing, cooking, softening, brooming and strengthening. According to the method for preparing the high-strength modified fibers from the willow bark leftovers provided bythe invention, fibers obtained by recycling waste willow barks are high in strength, and are flexible and durable, strong acid and strong base are not used in a preparation process, resources can beeffectively saved, and the environment is protected; the willow bark leftovers are recycled and crushed at first, particulate impurities are removed, a machine can be protected, later treatment is facilitated, and the treatment effect is improved; and after being crushed, the willow barks are subjected to high-temperature and high-pressure cooking, water rapidly enters the willow barks through high-temperature and high-pressure treatment, so that hardness and brittleness of the willow barks can be relieved, and flexibility is improved.

Description

technical field [0001] The invention mainly relates to the technical field of processing waste wood leftovers, in particular to a method for preparing high-strength modified fibers by using willow bark leftovers. Background technique [0002] In recent years, production tools, daily necessities, and artworks made of willow have become more and more popular because of their strong folk culture. Willow processed products are either woven or hot-pressed for stable deformation, but Regardless of the processing method, it is necessary to remove the bark of wood and willow rattan when preparing the product, so as to obtain a smooth surface of the product, which is easy for post-processing, and improves the practicability and decoration of willow products; Most of the wood veneers are discarded or used as fuel, which causes a great waste of resources and also pollutes the environment. [0003] The surface of willow veneer is a large amount of wood structure, and the inside contain...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K5/00B27K3/36B27K3/52B27K3/00B27K3/02D01C1/02
CPCB27K3/005B27K3/007B27K3/025B27K3/36B27K3/52B27K5/001B27K5/0085B27K2200/15B27K2240/10D01C1/02
Inventor 余国海
Owner 阜阳创启工艺品有限公司