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Preparation method and application of nanofiber membrane-modified cellulose molding paper

A nanofiber membrane, cellulose technology, applied in the directions of application, chemical instruments and methods, textiles and papermaking, etc., can solve the problems of cost reduction, large amount of acetate fiber, disadvantage, etc. The effect of selective adsorption capacity

Active Publication Date: 2014-03-12
CHINA TOBACCO HUNAN INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method requires a large amount of acetate fiber, which is not conducive to reducing costs, and requires a specially modified molding machine to process filter rods

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Preparation of Electrospun Nanofiber Membrane Modified Cellulose Paper:

[0021] The polycaprolactone solution was spun separately. Electrospinning is performed in an electrospinning chamber. Polycaprolactone was dissolved in acetone to prepare a 20% (V / V) solution, placed in a storage tank, and supplied to 400 electrospinning nozzles through a micropump at a speed of 4 mL / h per pump. The electrospinning voltage is 22KV, the distance between the nozzle and the paper base is 18.2cm, the temperature of the electrospinning environment is 50°C, each group of electrospinning nozzles has 20 nozzles, and each group of nozzles forms a circuit, and each group of nozzles runs continuously and uniformly in the circuit Rotate so that electrospinning is even on the receiving substrate. One end of the electrospinning chamber is continuously fed with air, and the other end discharges the air mixed with solvent from the electrospinning chamber for solvent recovery. The polycaprolact...

Embodiment 2

[0025] Preparation of Electrospun Nanofiber Membrane Modified Cellulose Paper:

[0026] The polyvinyl butyral (PVB) solution was spun alone. Electrospinning was performed in the electrospinning chamber in Example 1. The spinning equipment is the same as in Example 1. Dissolve polyvinyl butyral (PVB) in ethanol to prepare an 8% (W / W) solution. At room temperature, use a voltage of 25KV and a solidification distance of 15cm. The advancing speed of the spinning solution is 2mL / h. It is spun to receive polyvinyl butyral nanofibers with cellulose paper as a base, and white nanofibers with a diameter of about 500 nm are prepared on the cellulose paper. Prepare the modified cellulose molding paper containing electrospun nanofiber membrane, and the spraying amount of the nanofiber membrane on the paper substrate is about 0.5g / m 2 ..

[0027] Functional electrospun cellulose paper grooved filter rod and cigarette preparation and smoke analysis:

[0028] Modified cellulose paper gr...

Embodiment 3

[0030] Preparation of Electrospun Nanofiber Membrane Modified Cellulose Paper:

[0031]The polyethylene glycol 1000 solution was spun alone. Electrospinning was performed in the electrospinning chamber in Example 1. The spinning equipment is the same as in Example 1. Polyethylene glycol 1000 was dissolved in ethanol to prepare a 30% (V / V) solution. At room temperature, using a voltage of 20KV and a solidification distance of 12cm, the propulsion speed of the spinning solution was 1mL / h, and it was spun Silk, cellulose paper is used as a matrix to receive polyethylene glycol nanofibers, and white nanofibers with a diameter of about 600 nm are prepared on the cellulose paper. Prepare functional cellulose forming paper containing electrospun nanofibers, and the spraying amount of nanofiber film on the paper substrate is about 0.1g / m 2 ..

[0032] Functional electrospun cellulose paper grooved filter rod and cigarette preparation and smoke analysis:

[0033] Modified cellulos...

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Abstract

The invention discloses a preparation method and application of nanofiber membrane-modified cellulose molding paper. The preparation method comprises the following steps: dissolving polymer raw materials into a solvent to prepare a spinning solution, and putting the spinning solution into a liquid storage device; after regulating the electrostatic spinning voltage, continuously feeding the spinning solution in the liquid storage device to a spinning nozzle connected with the liquid storage device through a micro pump; spraying the spinning solution to the surface of a continuously-moving normal cellulose molding paper matrix through the spinning nozzle so as to form a nanofiber membrane, namely the nanofiber membrane-modified cellulose molding paper. The preparation method is simple and can be applied to continuous industrial production; the prepared nanofiber membrane-modified cellulose molding paper can be applied to the preparation of cigarette groove filter sticks which does not influence the smoking quality of cigarettes and can effectively reduce the release amount of crotonaldehyde and NH3 in the main stream smoke of the cigarettes.

Description

technical field [0001] The invention relates to a preparation method and application of nanofiber membrane modified cellulose forming paper, which belongs to the field of tobacco filter materials. Background technique [0002] Filter rod design is the key design link for cigarette tar reduction and harm reduction. It can effectively realize the inhalation control of harmful substances in mainstream smoke aerosol through the change of filter elements, groove design, and forming paper design. It has become the current cigarette enterprise. It is an effective way to achieve "coke reduction and harm reduction", and it is also a breakthrough point for technological innovation of various enterprises. Compared with the commonly used cellulose diacetate filter sticks at present, pure wood pulp or hemp pulp paper filter sticks have the advantages of significantly reducing smoke tar, being cheaper, and more environmentally friendly. There are defects such as collapse, dry smoke, and ...

Claims

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Application Information

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IPC IPC(8): B32B37/15B32B27/02B32B29/02D04H1/728A24D3/06
Inventor 谢兰英金勇刘琦李克王诗太谭海峰喻赛波
Owner CHINA TOBACCO HUNAN INDAL CORP
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