A method of using Chinese herbal medicine residue to prepare natural color paste and a method of using the natural color paste to prepare natural color packaging paper

A technology of Chinese herbal medicine residue and natural color paste, which is applied in the field of pulp and papermaking, can solve the problems of increased production costs, no discovery, and high wood pulp prices, so as to alleviate the pressure of wood resource demand, reduce the pressure of environmental protection, and reduce production costs. Effect

Active Publication Date: 2017-12-05
TIANJIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the slurry of the first two methods still contains a relatively large proportion of wood pulp. Due to the high price of wood pulp and the lack of timber resource reserves in my country, these two methods are still insufficient.
In the third method, due to the increase of the enzyme pretreatment process, although the product performance is better, the production cost also increases, which has an adverse effect on economic benefits.
At present, no packaging paper has been found that completely uses lightly beaten Chinese herbal medicine residues at low cost; and no method has been found that completely uses lightly beaten Chinese herbal medicine residues to prepare packaging paper

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A method for preparing natural color paste by using Chinese herbal medicine residues, the steps are as follows:

[0049] (1) First, the licorice medicinal residue after hot water extraction is subjected to deslagging treatment to remove non-medicinal residue impurities such as some plastic ropes, small stones and some small wooden poles that exist therein;

[0050] (2) washing the licorice medicinal residues after deslagging, using water to wash, and repeatedly washing until the washing liquid is clarified, so as to remove silt and dust therein;

[0051] (3) Carry out spiral extrusion processing to the licorice medicinal residue after washing, the concrete operation condition of spiral extrusion processing is: compression ratio is 4:1, thereby facilitates the infiltration of liquid medicine in follow-up cooking process;

[0052] (4) Cook the extruded licorice dregs, under the action of the cooking liquid, properly remove the lignin in the licorice dregs, and retain hemi...

Embodiment 2

[0061] A method for preparing natural color paste by using Chinese herbal medicine residues, the steps are as follows:

[0062] (1) At first, carry out deslagging treatment with the licorice medicinal residue after dilute sulfuric acid extraction, remove the non-medicinal residue impurities such as some plastic ropes, small stones and some small wooden poles that exist therein;

[0063] (2) washing the licorice medicinal residues after deslagging, using water to wash, and repeatedly washing until the washing liquid is clarified, so as to remove silt and dust therein;

[0064] (3) Carry out spiral extrusion processing to the licorice medicinal residue after washing, the concrete operation condition of spiral extrusion processing is: compression ratio is 3:1, thereby facilitates the infiltration of liquid medicine in follow-up cooking process;

[0065] (4) Cook the extruded licorice dregs, under the action of the cooking liquid, properly remove the lignin in the dregs, and retai...

Embodiment 3

[0074] A method for preparing natural color paste by using Chinese herbal medicine residues, the steps are as follows:

[0075] (1) First, the mixture of licorice and licorice dregs is subjected to deslagging treatment to remove impurities such as some small plastic ropes, small stones and some small wooden poles that exist therein;

[0076] (2) washing the licorice and licorice residue after deslagging, washing with water, and washing repeatedly until the washing liquid is clarified, so as to remove silt and dust therein;

[0077] (3) Carry out spiral extrusion process to the licorice after washing, the specific operation condition of spiral extrusion process is: compression ratio is 2:1, thereby facilitates the infiltration of liquid medicine in follow-up cooking process;

[0078] (4) Cook the extruded licorice, under the action of the cooking liquid, properly remove the lignin in the licorice, and retain hemicellulose and cellulose as much as possible. The specific cooking...

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Abstract

The invention relates to a method of preparing unbleached pulp by using Chinese herb residues, comprising the steps of (1), removing residues; (2), washing; (3), screw-extruding; (4), cooking; (5), defibering and screening, and the unbleached pulp prepared using Chinese herb residues is acquired by: defibering the cooked pulp to disperse fibers and screening. The waste of 100% grass fibers is used in the method as a raw material to prepare unbleached pulp and packaging paper, and the method is a clean production process turning 'waste' into wealth; wood materials are greatly saved, the pressure of domestic pulp papermaking industry on wood resource demand is relieved, and the method is significant to environmental protection, recycling of Chinese herb residues and the like.

Description

technical field [0001] The invention belongs to the technical field of pulping and papermaking, and aims to provide a method for preparing natural color paste by using Chinese herbal medicine residue and a method for preparing natural color packaging paper by using the natural color paste. Natural color paste, and then use the natural color paste to prepare packaging paper method. Background technique [0002] With the rapid development of my country's economy, people's quality of life has been significantly improved, and the demand for commodities is also increasing day by day, making various materials for commodity packaging appear one after another. Among them, packaging paper is an important packaging material that is widely used, convenient to use, clean and pollution-free, and occupies an important position in the entire packaging material system. Therefore, innovating the production technology of packaging paper is of great significance to promoting the development o...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): D21H11/12D21H11/14D21C5/00D21C9/02D21D5/02D21D1/02
CPCD21C5/00D21C9/02D21D1/02D21D5/02D21H11/12D21H11/14
Inventor刘苇侯庆喜汪兵吴明亮
OwnerTIANJIN UNIV OF SCI & TECH