Preparation and application for paper-making process reconstituted tobacco sizing agent coated with calcium carbonate

A technology of reconstituted tobacco leaves and papermaking, which is applied in the application, preparation of tobacco, tobacco, etc., can solve the problems of no research reports, etc., and achieve the effects of simple operation, improved retention rate, and reduced cost

Inactive Publication Date: 2015-06-17
CHINA TOBACCO YUNNAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no relevant research report on the method of coating calcium carbonate on the surface of the reconstituted tobacco slurry in the papermaking method to improve the retention rate of calcium carbonate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Take by weighing 20 g of wood pulp fiber, tobacco stem fiber and chip fiber slurry at a dry mass ratio of 16: 51: 35, refine to a degree of beating of 31°SR, soak the ground slurry in 400mL 3mol / L Soak in an aqueous potassium carbonate solution for 1 hour; dry the slurry with a centrifugal dryer, transfer the dehydrated slurry to a 1L washing bottle, add 500mL of 0.5mol / L calcium chloride aqueous solution, and keep for 3 minutes; Add citric acid with a mass concentration of 0.01% as a crystal form control agent, stir well, and introduce CO 2 , CO 2 The flow rate is 5 L / min, the reaction is carried out at 25°C for 30 min, the measured pH is 7.2, and the reconstituted tobacco leaf slurry coated with calcium carbonate is obtained by centrifugal drying.

[0026] The mass concentration of the slurry is adjusted to 0.9%, stirred evenly, and then the reconstituted tobacco leaf base is made, dried, and set aside.

[0027] The retention rate of calcium carbonate of prepared fi...

Embodiment 2

[0029] Take by weighing 30 g of wood pulp fiber, tobacco stem fiber and shred fiber slurry at a dry mass ratio of 15: 50: 35, refine to a beating degree of 29 ° SR, soak the ground slurry in 500 mL of 1mol / L Soak in the aqueous sodium carbonate solution for 2 hours; use a centrifugal drier to dry the slurry, transfer the dehydrated slurry to a 1L washing bottle, add 600mL of 1mol / L calcium lactate aqueous solution, and keep it for 4min; Citric acid with a concentration of 0.02% was used as a crystal form control agent, stirred evenly, and CO 2 , CO 2 The flow rate is 10 L / min, under the condition of 30° C., react for 1 hour, the measured pH is 7.1, and the reconstituted tobacco leaf slurry coated with calcium carbonate is obtained by centrifugal drying.

[0030] The mass concentration of the slurry is adjusted to 1%, stirred evenly, and then the reconstituted tobacco leaf base is made, dried, and set aside.

[0031] The calcium carbonate retention rate of prepared film base ...

Embodiment 3

[0033] Take by weight 25 g of wood pulp fiber, tobacco stem fiber and chip fiber slurry in a dry mass ratio of 14: 51: 34, refine to a beating degree of 31 ° SR, soak the ground slurry in 500 mL of 1.5 mol / L Soak in the ammonium carbonate aqueous solution for 3 hours; dry the slurry with a centrifugal dryer, transfer the dehydrated slurry to a 1L washing bottle, add 500mL 2mol / L calcium acetate aqueous solution, and keep it for 5min; Citric acid with a concentration of 0.03% was used as a crystal form control agent, stirred evenly, and CO 2 , CO 2 The flow rate is 6L / min, under the condition of 20°C, the reaction is carried out for 45 minutes, the measured pH is 7.0, and the reconstituted tobacco leaf slurry coated with calcium carbonate is obtained by centrifugal drying.

[0034] Prepare the mass concentration of the slurry to 0.8%, stir evenly, then make the reconstituted tobacco blade base, dry the base, and set aside.

[0035] The retention rate of calcium carbonate of p...

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PUM

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Abstract

The invention relates to a method and application for a paper-making process reconstituted tobacco sizing agent coated with calcium carbonate. The method comprises the steps that wood pulp fibers, tobacco stem fibers and fragment fibers are used for preparing a sizing agent, then, the sizing agent is soaked into a soluble carbonate solution for 0.5 h to 3 h, and then water is removed through centrifuge dripping; the sizing agent fiber with no water is added into a soluble calcium salt with the calcium ion concentration ranging from 1 mol/L to 3 mol/L, the concentration of the sizing agent is controlled to range from 3% to 10%, and a reaction is performed at room temperature for 3 min to 5 min; in the sizing agent solution, citric acid with the mass concentration ranging from 0.01% to 0.03% is added as a crystal form control agent, and CO2 is led into the solution at the temperature ranging from 20 DEG C to 35 DEG C for a reaction for 0.5 h to 1 h until the pH value of the solution ranges from 7.0 to 7.5, so that a certain amount of nano calcium carbonate coats the surface of paper-making process reconstituted tobacco, and centrifuge dripping is carried out to obtain the paper-making process reconstituted tobacco sizing agent coated with calcium carbonate. The method has the advantages of being easy to implement, high in efficiency and high in application value.

Description

technical field [0001] The invention belongs to the technical field of paper-making reconstituted tobacco leaves, and in particular relates to a method for improving the retention rate of the sheet-base calcium carbonate by coating calcium carbonate on the surface of paper-making reconstituted tobacco slurry. Background technique [0002] The development of low-tar cigarettes and the increase in the blending ratio have both promoted the increase in the amount of reconstituted tobacco year by year, and put forward higher requirements for its quantity and quality. Fillers can improve the filling performance and organizational structure of products, improve the quality and safety of reconstituted tobacco products, and are an important means to realize the tar reduction and harm reduction functions of reconstituted tobacco products in cigarettes. [0003] At present, calcium carbonate is the most important filler in most paper-making reconstituted tobacco leaf production enterpr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B3/14
CPCA24B3/14
Inventor 向海英王保兴刘晶马迅王建孔宁川徐广晋李姗姗王茜茜
Owner CHINA TOBACCO YUNNAN IND
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