Retinervus luffae fructus pulp for manufacturing viscose fiber and preparation method thereof

A viscose fiber and loofah technology is applied in fiber raw material processing, papermaking, pulp bleaching and other directions to achieve the effects of low pulping cost, low production cost and high output

Inactive Publication Date: 2012-05-09
SHANDONG UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Loofah is originally a good natural cellulose raw material, but because of its vascular fiber structure, it has not been directly used in the field of textile and clothing at present, and because loofah has good health care and medical effects and values, it is It is widely used in the fields of medicine and health care, such as loofah health care insoles, toiletries, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Weigh 100 parts of loofahs that have been manually or mechanically peeled and seeded, and crushed by a crusher and added to the cooker. In the cooker, 20 parts of NaOH and 3 parts of NaOH have been added in mass ratio. 2 The mixed solution composed of S and 277 parts of water was heated up to 155°C within 60 minutes and kept for 350 minutes. Drain off the residual liquid after cooking, and rinse the loofah after cooking. Make the dynamic viscosity of the cooking material reach 20±10mpa.s, and the content of cellulose in the first class is more than or equal to 90%. Afterwards, the cooking material is beaten in a beater, using sticky beating, requiring a beating concentration of 5%, a beating time of 30 minutes, and requiring no small lumps in the obtained pulp. The obtained slurry is desanded in a desander to remove impurities and fine fibers in the slurry. Slurry is carried out chlorination bleaching again, is equivalent to 3% of absolute dry material amount with ava...

Embodiment 2

[0019] Weigh 100 parts of loofahs that have been manually or mechanically peeled and seeded, and crushed by a crusher and added to the cooker. In the cooker, 25 parts of NaOH and 8 parts of NaOH have been added in mass ratio. 2 The mixed solution composed of S and 317 parts of water was heated up to 165°C within 80 minutes and kept at a temperature of 240 minutes. Drain off the residual liquid after cooking, and rinse the loofah after cooking. Make the dynamic viscosity of the cooking material reach 20±10mpa.s, and the content of cellulose in the first class is more than or equal to 90%. Afterwards, the cooking material is beaten in a beater, using sticky beating, requiring a beating concentration of 8%, and a beating time of 60 minutes, and requiring no small lumps in the obtained pulp. The obtained slurry is desanded in a desander to remove impurities and fine fibers in the slurry. Slurry is carried out chlorination bleaching again, is equivalent to 4% of dry material amou...

Embodiment 3

[0021] Weigh 100 parts of loofahs that have been manually or mechanically peeled and seeded, and crushed by a crusher and added to the cooker. In the cooker, 30 parts of NaOH and 12 parts of NaOH have been added in a mass ratio. 2 The mixed solution composed of S and 358 parts of water was heated up to 175°C within 100 minutes and kept for 180 minutes. Drain off the residual liquid after cooking, and rinse the loofah after cooking. Make the dynamic viscosity of the cooking material reach 20±10mpa.s, and the content of cellulose in the first class is more than or equal to 90%. Afterwards, the cooking material is beaten in a beater, using sticky beating, requiring a beating concentration of 10%, a beating time of 90 minutes, and requiring no small lumps in the obtained pulp. The obtained slurry is desanded in a desander to remove impurities and fine fibers in the slurry. Slurry is carried out chlorination bleaching again, is equivalent to 5% of absolute dry material amount wit...

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PUM

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Abstract

The invention relates to a preparation method of a retinervus luffae fructus pulp for manufacturing viscose fiber, which is characterized in that: the retinervus luffae fructus pulp for manufacturing viscose fiber is prepared by taking retinervus luffae fructus as raw material. The preparation method comprises the steps of preparation of raw materials, boiling, washing, pulp beating, desanding, bleaching, rinsing and pulping. The method specifically comprises the steps of: weighing and adding a fixed amount of pretreated retinervus luffae fructus to a boiler for boiling in alkaline liquid for a certain time; removing residual liquid upon the completion of boiling, then washing the boiled retinervus luffae fructus, pulping in a beater, desanding and bleaching the resultant pulp by chlorination, removing residual liquid and rinsing the pulp, and finally performing pulping on the pulp in a pulp machine to obtain the required retinervus luffae fructus pulp. Compared with traditional pulp-making raw materials like wood or cotton linter, the raw material in the retinervus luffae fructus pulp disclosed by the invention is easier for large-area plantation and development, has simple and convenient production process and low cost, and is an inexpensive raw material easier for large-area development.

Description

technical field [0001] The invention relates to a method for preparing loofah pulp used for producing viscose fibers, and belongs to the technical field of regenerated textile fiber production. Background technique [0002] Compared with synthetic fibers, cellulose regenerated fibers are more and more popular because of their properties similar to cotton and good textile and clothing value. However, because the traditional cellulose fiber is mainly made of cotton linters, coniferous pine and broad-leaved wood, it not only needs to consume a lot of resources, but also greatly limits the development of cellulose regenerated fiber due to the limited raw materials. In order to expand the development space of cellulose raw materials, my country's cellulose manufacturing field has successively developed and developed various pulps such as bamboo cellulose pulp, sunflower seed hull pulp, cotton stalk pulp, mulberry pulp and corn straw pulp. Meal raw material. [0003] Loofah is or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21B1/34D21C7/00D21C9/02D21C9/12
Inventor 杨彦功孙炳祥刘峰章张悦龙孙立亭
Owner SHANDONG UNIV OF TECH
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