Pulping and extracting process for regenerated tobacco leaves

A technology for reconstituting tobacco leaves and extracting technology, which is applied in directions such as tobacco, tobacco preparation, and application

Inactive Publication Date: 2011-08-03
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Tobacco stem mixture: Tobacc...

Method used

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  • Pulping and extracting process for regenerated tobacco leaves

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Experimental program
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Embodiment 1

[0040] A refining and extraction process for reconstituted tobacco leaves, in particular, using low-grade and waste tobacco raw materials that cannot be directly used in the production of cigarette products, and adopting the papermaking process of pre-soaking, refining and extracting, and countercurrent washing pulp to produce reconstituted tobacco leaves. It is characterized in that it comprises the following steps:

[0041] The first step, composition of raw materials: Compatible raw materials according to product process requirements, composed of tobacco stem mixture and tobacco leaf fragment mixture. The mixture of tobacco stems can be composed of short stems, tobacco stems, etc.; the mixture of tobacco leaf fragments can be composed of fragments, tobacco powder, etc. Tobacco stem mixture:tobacco leaf fragment mixture=3~5:7~5. The moisture content of raw materials is 8-15%.

[0042] The second step, stem washing and pre-soaking of stem washing material: mix tobacco stem ...

Embodiment 2

[0063] A process of water presoaking, pulp extraction, and countercurrent washing:

[0064] Get total raw material amount 200g. Among them, 100g of tobacco stems, 50g of A short stems and 50g of B tobacco stems; 100g of tobacco leaf fragments, 40g of C fragments, 40g of D fragments, and 20g of E tobacco powder. The raw material moisture was 12% on average.

[0065] Stem washing and soaking: Mix 100g of tobacco stems and wash once, add 250g of water at a liquid ratio of 1:2.5, and soak at a temperature of 55-65°C for 20 minutes.

[0066] Soaking of minced tobacco leaves: mix 100 g of minced tobacco leaves, add 600 g of water at a liquid ratio of 1:6, and soak at a temperature of 55-65° C. for 20 minutes.

[0067] Defiberization and refining: After soaking the raw material, the designed concentration after refining is 10%; the moisture content of the raw material is 12%; add 710g of water when refining. After adding 710 g of water, the stems were first defibrated and then mix...

Embodiment 3

[0078] A process of water presoaking, pulp extraction, and countercurrent washing:

[0079] Get total raw material amount 400g. Among them, 200g of tobacco stems, 100g of A short stems and 100g of B tobacco stems; 200g of tobacco leaf fragments, 80g of C fragments, 80g of D fragments, and 40g of E tobacco powder. The raw material moisture was 12% on average.

[0080] Stem washing and soaking: Mix 200g of tobacco stems and wash once, add 500g of water at a liquid ratio of 1:2.5, and soak at a temperature of 55-65°C for 20 minutes.

[0081] Soaking of minced tobacco leaves: mix 200 g of minced tobacco leaves, add 1200 g of water at a liquid ratio of 1:6, and soak at a temperature of 55-65° C. for 20 minutes.

[0082] Defiberization and refining: After soaking the raw material, the designed concentration after refining is 10%; the moisture content of the raw material is 12%; add 1420g of water when refining. After adding 1420 g of water, the stems are first defibrated and then...

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Abstract

The invention relates to a pulping and extracting process for regenerated tobacco leaves, in particular to a process for preparing the regenerated tobacco leaves by using low-quality and waste tobacco raw materials which cannot be directly applied to producing cigarette products and by using a paper-making process of presoaking, pulping and extracting and countercurrent pulp washing. The process comprises the following steps of: presoaking tobacco leaf flakes and tobacco stalks which serve as raw materials; and directly performing pulping and extraction, countercurrent pulp washing, concentration and pulp mixing on the soaked materials. Compared with the conventional production process, the process has the advantages of accelerating lixiviation of the tobacco raw materials and dissolution of tobacco extract, and saving two to three steps of extraction process, an extractor before pulping and a spiral shoving separation system (inclined and flat helix) so as to simplify a tobacco regenerating process and equipment operation and flow and enhance dissolution and separation of the tobacco extract. By the step of countercurrent pulp washing, the tobacco raw materials can be extracted at a low temperature and the soluble extract in the raw materials can be recovered; extraction yield and leach liquor quality of the regenerated tobacco leaves are improved; load of treating sewage during generated tobacco leaf production is greatly reduced; and environmental friendliness, low carbon and energy conservation of the generated tobacco leaf production are realized.

Description

Technical field: [0001] The invention relates to a tobacco leaf reconstitution and refining extraction process, in particular, the use of low-grade and waste tobacco raw materials that cannot be directly used in the production of cigarette products, and the paper-making process of pre-soaking, refining and extraction, and countercurrent washing processes are used to manufacture reconstituted tobacco leaves and its method of production. Background technique: [0002] Papermaking method Reconstituted tobacco leaves are produced by using the principle of papermaking method, using low-grade and waste tobacco raw materials that cannot be directly used in cigarette products, and undergoing processes such as extraction, pulping, substrate sheet making, coating, drying, slitting, and flavoring. become. Papermaking reconstituted tobacco has been accepted and adopted by the world's tobacco production industry as the mainstream trend of reconstituted tobacco due to its high added valu...

Claims

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Application Information

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IPC IPC(8): A24B3/14
Inventor 孙先玉郑松明孙博郑松辉张宗和李春秦清罗天然
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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