CN1399923A

CN1399923A - Filter tip and its production method

Info

Publication number: CN1399923A
Application number: CN 01126040
Authority: CN
Inventors: 吴奕光
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-07-31
Filing date: 2001-08-22
Publication date: 2003-03-05

Abstract

The present invention discloses a filter tip of cigarette and its production method. It is characterized by that in the filter tip self-body one kind of several kinds of four material of alpha-chitin, beta-chitin, alpha-chitosan and beta-chitosan can be mixed, adsorbed or filled. The chitin and chitosan have strong affinity for anionic compound. and have obvious adsorption action for harmful matters of tar and nicotine, etc. produced by lighting cigarette, at same time they are non-toxic, and have good biological compatibility and biological degradability, so that it can ensure that said filter tip of cigarette is harmless to human body.

Description

A kind of cigarette filter and preparation method thereof

Technical field:

The present invention relates to a kind of cigarette filter and preparation method thereof.

Background technology:

As everyone knows, Smoking is harmful to your health.In order to reduce of the injury of things such as nicotine in the cigarette, tar, in some cigarettes, have filter tip to human body.Filter-tip employing filtering the part nuisance, but that the traditional filtering mouth is far from itself is perfect, how to find better filter-tip material is the problem that people study always.

Summary of the invention:

Purpose of the present invention is exactly to provide a kind of cigarette filter and preparation method thereof in order to overcome the above problems, and increases the absorption of the harmful substance that cigarette filter tip produces after to cigarette combustion such as tar and nicotines.

For achieving the above object, the present invention proposes a kind of cigarette filter and preparation method thereof.

Described cigarette filter comprises the filter tip body, it is characterized in that: mix in described filter tip body, adsorb or be filled with in α-chitin, β-chitin, α-chitin, four kinds of materials of β-chitin one or more.

It is characterized in that of the preparation method of described cigarette filter: with one or more mixing in α-chitin, β-chitin, α-chitin, four kinds of materials of β-chitin, adsorb or be filled in the filter tip body.

After having adopted above scheme,, the harmful substance that produces after the cigarette combustion such as tar and nicotine had tangible suction-operated because chitin and chitin have strong affinity characteristic to anionic compound.Simultaneously because chitin and chitin are nontoxic, and have extraordinary biocompatibility and biodegradability, guaranteed harmless; Use discarded back that environment is not polluted.

Description of drawings:

Fig. 1 is a filter tip schematic diagram in the one embodiment of the invention.

Fig. 2 is a filter tip schematic diagram in the another embodiment of the present invention.

The specific embodiment:

Also the present invention is described in further detail in conjunction with the accompanying drawings below by specific embodiment.

As shown in Figure 1, filter tip is to mix, adsorb or be filled with in α-chitin, β-chitin, α-chitin, four kinds of materials of β-chitin one or more to form in sponge and fine cavity in this example.Among the figure: 1 is tobacco section, and 2 is the filter tip part, and 3 is sponge, and 4 is the sponge fiber, and 5 is chitin.

The adding mode of raw material can have following three kinds according to different situations:

1, with raw material α-chitin or β-chitin or α-chitin or β-chitin drying, pulverizing or grinding, obtain powder or the fibrous particle of 10 μ m～2mm, be mixed in the filter tip sponge in accounting for sponge weight 0.1%～90% ratio.

2, with α-or β-chitin be dissolved in 0.1%～10% acetum, make solid-to-liquid ratio and be 0.1%～10% solution, the filter tip fiber is soaked wherein, dry.

3, raw material α-chitin or β-chitin or α-chitin or β-chitin are ground into powder or the fibrous particle of 10 μ m～2mm, perhaps compressing tablet is made strip, fills out in the independent filter tip that is put in muptiple-use use.

And for example shown in Figure 2, in this example, filter tip is divided into three parts, and the part at two ends is respectively simple acetate fiber.With raw material α-chitin or β-chitin or α-chitin or β-chitin drying, pulverizing or grinding, obtain powder or the fibrous particle of 10 μ m～2mm; In accounting for sponge weight 0.1%～90% ratio, store in the cavity at middle part.

Obviously, the method that raw material α-chitin or β-chitin or α-chitin or β-chitin are put in the filter tip is diversified, no longer enumerates at this.

Chitin (chitin), chitin (chitosan) extensively are present in the crust of shellfish such as shrimp, crab and insect so that in the cell membrane of mushroom class, remove deproteinize with diluted alkaline, and what be left with the calcareous back of hydrochloric acid extraction then is exactly chitin.Slough acetyl group in the chitin molecule with concentrated base again, what obtain is exactly chitin.

The manufacture craft comparative maturity of α-chitin, α-chitin wherein, domestic existing a plurality of producers can produce this type of material.β-chitin, β-chitinous manufacturing process have also been passed through years of researches, and prior art also once proposed kinds of processes, and it is for reference to provide a kind of better process below:

Raw material β-chitinous manufacture method: with squid cartilage through washing, dry, the fibrous powder that is ground into 10 μ m～2mm; Earlier take off albumen through alkali treatment then: the raw material after will pulverizing is poured in the aqueous slkali that concentration is 0.5M～10M (NaOH NaOH or potassium hydroxide KOH) and is stirred, mixing speed is 50 rev/mins～3000 rev/mins, maintains the temperature between 30 ℃～150 ℃; Mixing time 0.5 hour～24 hours; Charge into nitrogen protection in the process, solid and liquid volume ratio are between 1: 5～1: 50; Can adopt the multistep alkali treatment, per step condition is the same; Remove inorganic salts through acid treatment again: will pour in the hydrochloric acid solution of 0.5M～10M concentration through alkali treatment and the product of drying and stir, mixing speed is 50 rev/mins～3000 rev/mins; Maintain the temperature between 30 ℃～150 ℃; Mixing time 0.5 hour～24 hours; Charge into nitrogen protection in the process; Wherein, solid and liquid volume ratio is between 1: 5～1: 50; Can adopt the multistep acid treatment, per step condition is the same.

The manufacture method of β-chitin: pour β-chitin in the aqueous slkali that mass percent concentration is 10%～60% concentration (NaOH NaOH or potassium hydroxide KOH) stirring, mixing speed is 50 rev/mins～3000 rev/mins; Maintain the temperature between 30 ℃～150 ℃; Mixing time 0.5 hour～24 hours; Charge into nitrogen protection in the process; Solid-to-liquid ratio is 1: 5～1: 50.Can do two step or multistep alkali treatments, per step condition is the same.The alkali treatment number of times can be controlled the deacetylation degree, designs number of times as requested.

For the difference of reaction condition, the difference as a result that is produced.Its difference is in the requirement difference to end-product.Division is as follows:

1. the influence of granular size, particle is little, sufficient reacting, production efficiency height, product purity height; But the separation process difficulty causes product to contain impurity.

2. the influence of reaction temperature, the temperature height can make the product deacetylation improve, on the contrary the deacetylation deficiency; But the color burn that may cause product, decolouring then makes complex manufacturing again.

3. the influence of acid base concentration, the concentration height, the deacetylation height, but product may cause unnecessary degradation reaction, and influence product purity.

4. the influence of rotating speed, rotating speed improves, and reaction efficiency is improved, and but causes the power degraded easily.

5, nitrogen N ₂Influence, in the production process, charge into nitrogen N ₂Can avoid the product degradation that oxidation reaction causes and the intensification of product color.

Claims

1, a kind of cigarette filter comprises the filter tip body, it is characterized in that: mix in described filter tip body, adsorb or be filled with in α-chitin, β-chitin, α-chitin, four kinds of materials of β-chitin one or more.

2, a kind of preparation method of cigarette filter is characterized in that: with one or more mixing in α-chitin, β-chitin, α-chitin, four kinds of materials of β-chitin, adsorb or be filled in the filter tip body.

3, the preparation method of cigarette filter as claimed in claim 2, it is characterized in that: with raw material α-chitin or β-chitin or α-chitin or β-chitin drying, pulverizing or grinding, obtain powder or the fibrous particle of 10 μ m～2mm, be mixed in the filter tip sponge in accounting for sponge weight 0.1%～90% ratio.

4, the preparation method of cigarette filter as claimed in claim 2 is characterized in that: with α-or β-chitin be dissolved in 0.1%～10% acetum, make solid-to-liquid ratio and be 0.1%～10% solution, the filter tip fiber is soaked wherein, dry.

5, the preparation method of cigarette filter as claimed in claim 2, it is characterized in that: the powder or the fibrous particle that raw material α-chitin or β-chitin or α-chitin or β-chitin are ground into 10 μ m～2mm, perhaps compressing tablet is made strip, fills out in the independent filter tip that is put in muptiple-use use.

6, the preparation method of cigarette filter as claimed in claim 2, it is characterized in that: filter tip is divided into two parts or a plurality of part, wherein having a part at least is cavity, raw material α-chitin or β-chitin or α-chitin or β-chitin drying, pulverizing or grinding, after obtaining the powder or fibrous particle of 10 μ m～2mm, in accounting for sponge weight 0.1%～90% ratio, store in described cavity.