Unlock instant, AI-driven research and patent intelligence for your innovation.

Paper making method reproduced tobacco leaf pulping process

A technology for reconstituted tobacco leaves and papermaking method, which is applied in the field of pulping process of reconstituted tobacco leaves by papermaking method, can solve the problems of inability to effectively deal with non-fiber impurities, low pulp fiber length, intensified cutting effect, etc., and achieves improved applicability and stability. , the effect of retaining fiber length and improving stability

Active Publication Date: 2014-08-06
SHANGHAI TOBACCO GRP CO LTD +1
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of treating grass pulp in the traditional pulping and papermaking theory is completely used for reference. Although the slurry with a certain degree of beating can also be obtained, there are mainly the following defects: the total amount of materials that provide fibers in tobacco raw materials does not exceed 60%, and the remaining materials are not Raw material for pulping in the usual sense; if high-consistency disc refiner is used for pulping, in order to ensure that the pulp does not contain large particles of impurities, it is necessary to apply a higher current for pulping, resulting in current fluctuations; higher current leads to cut-off The effect is intensified, and the fiber length of the pulp obtained is too low; the non-fibrous impurities in the pulp cannot be effectively treated by using a high-consistency mill

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Paper making method reproduced tobacco leaf pulping process
  • Paper making method reproduced tobacco leaf pulping process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] According to the ratio of tobacco stem (3-5cm in length): Tobacco fragments: 40-60 mesh tobacco powder = 50wt%: 30wt%: 20wt% To prepare tobacco sheet raw materials, add water after mixing for extraction, the weight of tobacco sheet raw materials: water The weight = 1:5, the extraction time is 30min. After filtration and separation, the obtained insoluble components are uniformly mixed as raw materials for pulping.

[0038] Add water, adjust the slurry concentration to 25wt%, and beat according to the high-consistency pulping process (comparative example). The refining equipment is GM-750 high-consistency refiner, the mill current is 500A, and the pulping flow rate is 60m 3 / h, the rotation speed of the grinding disc is 1200rpm, and the pulp feeding pressure is 0.20Mpa. As the beating process progresses, the beating degree of the pulp gradually increases, and the wet weight gradually decreases. When the wet weight was reduced to 2.50g, the pulp freeness was still only 2...

Embodiment 2

[0040] According to the ratio of tobacco stem (3-5cm in length): Tobacco fragments: 40-60 mesh tobacco powder = 50wt%: 30wt%: 20wt% To prepare tobacco sheet raw materials, add water after mixing for extraction, the weight of tobacco sheet raw materials: water The weight = 1:5, the extraction time is 30min. After filtration and separation, the obtained insoluble components are mixed uniformly as raw materials for pulping.

[0041] Add water, adjust the slurry concentration to 4.0wt%, and perform primary pulping. The process parameters of the primary pulping are: the refining equipment is a DD-500 low-consistency double-disc refiner, the mill current is 60A, and the pulping Flow 60m 3 / h, grinding disc rotation speed 980rpm, pulp feeding pressure 0.20Mpa, primary pulping cycle number is 9 times, the beating degree of the obtained slurry is 28°SR, and the wet weight is 6.61g. The slurry obtained from the primary pulping is subjected to secondary pulping. The process parameters ...

Embodiment 3

[0043]According to the ratio of tobacco stem (3-5cm in length): Tobacco fragments: 40-60 mesh tobacco powder = 50wt%: 30wt%: 20wt% To prepare tobacco sheet raw materials, add water after mixing for extraction, the weight of tobacco sheet raw materials: water The weight = 1:5, the extraction time is 30min. After filtration and separation, the obtained insoluble components are mixed uniformly as raw materials for pulping.

[0044] Add water, adjust the slurry concentration to 4.0wt%, and perform primary pulping. The process parameters of the primary pulping are: the refining equipment is a DD-500 low-consistency double-disc refiner, the mill current is 70A, and the pulping Flow 60m 3 / h, grinding disc rotation speed 980rpm, pulp feeding pressure 0.20Mpa, primary pulping cycle number is 9 times, the beating degree of the obtained slurry is 29°SR, and the wet weight is 6.48g. The slurry obtained from the primary pulping is subjected to secondary pulping. The process parameters o...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the technical field of paper making method tobacco leaf thin sheet production, in particular to a paper making method reproduced tobacco leaf pulping process of tobacco raw materials in a pulping section in the production process. The invention provides the paper making method reproduced tobacco leaf pulping process, which comprises the following steps that the tobacco thin sheet raw materials are subjected to digestion after being mixed, the materials obtained after the digestion are filtered and separated, the obtained insoluble ingredients are uniformly mixed to be used as pulping raw materials, the pulping raw materials are subjected to pulping and concentration regulation, a multi-stage pulping process is adopted, and obtained pulp is subjected to pulp beating. The pulping process provided by the invention has the advantages that the fiber length is sufficiently maintained, the wet weight of the pulp is effectively improved, meanwhile, various raw material particles and small sheets in the tobacco pulp can also be sufficiently defibered, the uniform form and size of the fiber are maintained, and the tobacco substrate uniformity is effectively improved.

Description

technical field [0001] The invention relates to the technical field of paper-making tobacco sheet production, in particular to a paper-making reconstituted tobacco leaf pulping process in the pulping section of the improved tobacco raw material production process. Background technique [0002] In the prior art, reconstituted tobacco leaves by papermaking method refers to the extraction, pulping and papermaking process of tobacco waste such as tobacco stems, tobacco powder and low-grade tobacco leaves discarded in the cigarette production process, and the substrate is prepared according to the principle of papermaking method. , and coated with tobacco extract, the manufactured sheet-shaped tobacco regenerated raw material meets the requirements of cigarette formulation. [0003] Tobacco sheet is also called recombined tobacco leaf or homogeneous tobacco leaf. It is mainly composed of tobacco powder, chips, tobacco stems or low-grade tobacco leaves with adhesives and other ad...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A24B3/14
Inventor 严新龙张晴川宋成剑孙霞刘孙宏
Owner SHANGHAI TOBACCO GRP CO LTD