Method for improving calcium carbonate retention rate through adding calcium carbonate before pulp beating

A technology of calcium carbonate and retention rate, applied in the field of adding calcium carbonate to improve the retention rate of calcium carbonate, and can solve the problems of low retention rate of calcium carbonate and the like

Inactive Publication Date: 2014-07-16
HUBEI CHINA TOBACCO IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the deficiency of low calcium carbonate retention rate in the production process of existing papermaking reconstituted tobacco leaves, and provide a preparation method for adding calcium carbonate before beating to improve the calcium carbonate retention rate. Calcium carbonate is added before the beating process in the beating process, so that the calcium carbonate and the pulp are mixed together for beating, and the external force exerted by the grinding disc of the beating machine is used to make the calcium carbonate mixed into the pulp fibers to improve the retention rate of calcium carbonate, and then improve the reconstituted tobacco leaves of the papermaking method. spread rate

Method used

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  • Method for improving calcium carbonate retention rate through adding calcium carbonate before pulp beating
  • Method for improving calcium carbonate retention rate through adding calcium carbonate before pulp beating
  • Method for improving calcium carbonate retention rate through adding calcium carbonate before pulp beating

Examples

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Effect test

Embodiment 1

[0022] The preparation method for adding calcium carbonate before beating to improve the retention rate of calcium carbonate comprises the following steps:

[0023] 1) Soak the tobacco powder, tobacco stems, and shredded tobacco pieces in water to obtain a mixed pulp, and then extract and separate the mixed pulp to obtain soluble tobacco fibers and insoluble tobacco fibers;

[0024] 2) Mix and beat the insoluble tobacco fiber and calcium carbonate in step 1) to obtain a mixed pulp of stem end with a beating degree of 30±2°SR, wherein the amount of calcium carbonate is the above-mentioned tobacco powder, tobacco stem, and shredded tobacco flakes 10% of the dry weight of the mixed pulp;

[0025] 3) Add the outer fiber and chitosan with a beating degree of 44±2°SR to the slurry obtained in step 2), and after mixing evenly, obtain the pre-sheet slurry, and make the pre-sheet slurry into a substrate, wherein , the amount of outer fiber is 12.5% ​​of the dry weight of the mixed pul...

Embodiment 2

[0033] A preparation method for adding calcium carbonate before beating to improve the retention rate of calcium carbonate, comprising the following steps:

[0034] 1) Soak the tobacco powder, tobacco stems, and shredded tobacco pieces in water to obtain a mixed pulp, and then extract and separate the mixed pulp to obtain soluble tobacco fibers and insoluble tobacco fibers;

[0035] 2) Mix and beat the insoluble tobacco fiber and calcium carbonate in step 1) to obtain a mixed pulp of stem end with a beating degree of 30±2°SR, wherein the amount of calcium carbonate is the above-mentioned tobacco powder, tobacco stem, and shredded tobacco flakes 20% of the dry weight of the mixed pulp;

[0036] 3) Add the outer fiber and chitosan with a beating degree of 44±2°SR to the slurry obtained in step 2), and after mixing evenly, obtain the pre-sheet slurry, and make the pre-sheet slurry into a substrate, wherein , the amount of outer fiber is 10% of the dry weight of the mixed pulp in...

Embodiment 3

[0045] The preparation method for adding calcium carbonate before beating to improve the retention rate of calcium carbonate comprises the following steps:

[0046] 1) Soak the tobacco powder, tobacco stems, and shredded tobacco pieces in water to obtain a mixed pulp, and then extract and separate the mixed pulp to obtain soluble tobacco fibers and insoluble tobacco fibers;

[0047] 2) Mix and beat the insoluble tobacco fiber and calcium carbonate in step 1) to obtain a slurry with a beating degree of 30±2°SR, wherein the amount of calcium carbonate is the mixed slurry of the above-mentioned tobacco powder, tobacco stems, and shredded tobacco flakes 30% of dry weight;

[0048] 3) Add the outer fiber and chitosan with a beating degree of 44±2°SR to the slurry obtained in step 2), and after mixing evenly, obtain the pre-sheet slurry, and make the pre-sheet slurry into a substrate, wherein , the amount of outer fiber is 15% of the dry weight of the mixed pulp in step 2); the amo...

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Abstract

The invention discloses a method for improving the calcium carbonate retention rate through adding calcium carbonate before pulp beating. The method includes the steps that tobacco powder, tobacco stem and fragmentary tobacco pieces are immersed in water to obtain mixed slurry, and the mixed slurry is extracted and separated to obtain soluble tobacco fiber and non soluble tobacco fiber; mixed beating is conducted to the non soluble tobacco fiber and calcium carbonate to obtain slurry material, outer fiber and chitosan are added to the obtained slurry material to obtain slurry material before pulping after being evenly mixed, and the slurry material before pulping is manufactured into a substrate in a pulped mode; evaporation and concentration, and fragrance adding and tinting are conducted on the obtained soluble tobacco fiber to obtain coating liquid with relative density ranging from 1.102 to 1.325; the coating liquid is sprayed on the substrate, and finally after drying and slicing up are conducted, the reconstituted tobacco is obtained. The method for improving the calcium carbonate retention rate through adding the calcium carbonate before pulp beating is simple and practical, the prepared reconstituted tobacco is better in coating rate and calcium carbonate retention rate than the reconstituted tobacco prepared through an existing technology, the quality of the reconstituted tobacco is not influenced, and popularization and application in actual production are facilitated.

Description

technical field [0001] The invention belongs to the technical field of reconstituted tobacco leaves, and specifically refers to a method for adding calcium carbonate to improve the retention rate of calcium carbonate before slurry beating. technical background [0002] Reconstituted tobacco leaves are regenerated products made of tobacco stems, tobacco dust and some low-grade tobacco leaves in the cigarette production process as raw materials in sheet or shred form, and are used as cigarette fillers. Their physical and chemical properties are similar to those of tobacco. The reconstituted tobacco leaves prepared by the papermaking method have the characteristics of adjustable tobacco components, good combustion performance, low tar release, low product density, and good filling properties, so they are favored by cigarette manufacturers and consumers. [0003] Precipitated calcium carbonate (PCC) is commonly used as filler in paper base production of reconstituted tobacco lea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B3/14
Inventor 张林霄孙德平唐向兵王亮万超
Owner HUBEI CHINA TOBACCO IND
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