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Manufacturing method of soluble bamboo pulp

A manufacturing method and bamboo pulp technology are applied in the directions of papermaking, textile and papermaking, cellulose raw material pulping, etc., and can solve problems such as unfavorable industrialization promotion and practical production application of bamboo raw materials, high development and production costs, and restricted use scope. , to achieve the effect of convenient industrial application, simple processing and stable source of raw materials

Inactive Publication Date: 2005-11-09
黄楚和 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes the use range of bamboo raw materials subject to certain restrictions, and the development and production costs are also high, which is not conducive to the industrialization and actual production and application of bamboo raw materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] (1) Bamboo dregs: waste bamboo dregs produced during the production and processing of the "Production Method of Edible Fresh Bamboo Products for Medicinal Use" (see ZL94111632.8).

[0054] (2) Dust removal: The dust cage type dust collector performs opening and dust removal on the bamboo slag. The process conditions are: the speed of beater is 180 rpm, and the distance from the bottom of the drain is 4mm.

[0055] (3) Cooking: Cooking in the ball steaming machine. The technical conditions are:

[0056] Total alkali (as Na 2 O meter) 15% (to absolute dry pulp weight);

[0057] Sulfur degree 20% (to absolute dry pulp weight);

[0058] The liquid ratio is 1:4.

[0059] Temperature control: feed at 100°C for 40 minutes, heat up to 140°C for 1 hour; 140-

[0060] Keep warm at 143°C for 1h; heat up to 175°C in 40min; keep warm at 175°C for 2-4h;

[0061] During the heating process, deflate 2 times.

[0062] ...

Embodiment 2

[0093] (1) Bamboo dregs: the bamboo dregs after extracting bamboo lees from 2-year-old Cizhu.

[0094] (2) Dust removal: The vertical thug type dust remover opens and removes dust. The speed of beater is 160 rpm, and the distance from the bottom of the drain is 6mm.

[0095] (3) Cooking: steaming in a ball steaming machine, the technical conditions are:

[0096] Total alkali (as Na 2 O meter) 14% (to absolute dry pulp weight);

[0097] Sulfur degree 22% (to absolute dry pulp weight);

[0098] Liquid ratio 1:4;

[0099] Temperature control: feed at 100°C for 40 minutes, heat up to 145°C in 1 hour; keep at 145°C

[0100] Warm for 1h, then raise the temperature to 175°C in 30min; keep warm at 175°C for 3h; degas once.

[0101] Cooking quality: KMnO 4 The value is 13, the content of methyl fiber is 85%, and the average degree of polymerization is 950.

[0102](4) Refining: carried out in a continuous cooking machine, the ...

Embodiment 3

[0131] (1) Bamboo dregs: Bamboo dregs from 2-year-old Cizhu.

[0132] (2) Dust removal: The vertical thug type dust remover opens and removes dust. The speed of beater is 180 rpm, and the distance from the bottom of the drain is 5mm.

[0133] (3) Cooking: Cooking can be carried out in a continuous cooking machine, the technical conditions are:

[0134] Total alkali (as Na 2 O meter) 25% (to absolute dry pulp weight);

[0135] Sulfur degree 20% (to absolute dry pulp weight);

[0136] Liquid ratio 1:3.5;

[0137] Temperature control: feed at 100°C for 40 minutes, heat up for 1 hour to 150-152°C;

[0138] 150-152°C for 1 hour; 30-40min for heating to 160°C;

[0139] Keep warm at 160°C for 2-4 hours; during the heating process, you can deflate once.

[0140] Cooking quality: KMnO 4 value 11;

[0141] A fiber content of 87%;

[0142] The average degree of polymerization is 1080.

[01...

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Abstract

This invention relates to a manufacturing method of soluble bamboo pulp. The materials is bamboo dregs, and technique is that bamboo dregs to boiling to materials washing to refinery to material washing to sand eliminating to chlorination to alkali sluicing to bleaching to neutralization to copy manufacturing to soluble bamboo pulp. Sulfate method is used to make pulp in boiling process, and boiling is processed in rotary spherical digester device or continuous boiling device. Sulfate method plus additive method is used in refinery process, the additive is polyxylose enzyme or woody prime sodium sulfonate, and they are also processed in rotary spherical digester device or continuous boiling device. The advantages are good quality of alpha pulp material for regenerated fiber generation, and fully using resource, protecting environment.

Description

technical field [0001] The invention relates to a fiber raw material manufacturing technology, in particular to a manufacturing method of soluble bamboo pulp, which can be used as fiber raw material for the production of cellulose regenerated fiber, and the main classification number of the international patent is intended to be Int.Cl 7 .D01C1 / 02. Background technique [0002] With the enhancement of people's environmental awareness and the continuous improvement of consumption concepts, the proportion of synthetic fibers in people's daily consumption is decreasing year by year, especially the crisis brought by the rise of oil prices to the production of synthetic fibers is becoming increasingly apparent. Therefore, fiber processors turn their attention to those fiber resources that are friendly to the environment, that is to say, the full development and utilization of natural fiber resources is getting people's attention again. As a major characteristic resource in my co...

Claims

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Application Information

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IPC IPC(8): D21C3/00
Inventor 黄楚和周向阳
Owner 黄楚和
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