CN101411545A - Use of cellulose acetate made from dissolving pulp of hemp as raw material in preparing acetate silk bind for cigarette - Google Patents
Use of cellulose acetate made from dissolving pulp of hemp as raw material in preparing acetate silk bind for cigarette Download PDFInfo
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- CN101411545A CN101411545A CNA2008102363269A CN200810236326A CN101411545A CN 101411545 A CN101411545 A CN 101411545A CN A2008102363269 A CNA2008102363269 A CN A2008102363269A CN 200810236326 A CN200810236326 A CN 200810236326A CN 101411545 A CN101411545 A CN 101411545A
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- cellulose acetate
- cigarette
- dissolving pulp
- hemp
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Abstract
The invention discloses application of cellulose acetate produced by taking hemp pulp as a raw material in the preparation of a cellulose acetate cigarette tow. The hemp pulp has natural antibacterial and antioxidant components, so compared with a cellulose acetate cigarette tow prepared by taking wood pulp and cotton pulp as raw materials, the cigarette tow prepared by adopting the hemp pulp apparently strengthens antibacterial ability, can effectively maintain the smoking hygiene of cigarette filter tips, and improve the filtering efficiency of total particulate matter in smoke gas by 10 percent; and the application can ensure that the cost for raw materials needed by producing cellulose acetate for cigarettes is reduced by 10 to 30 percent.
Description
Technical field:
The present invention relates to a kind of purposes of cellulose acetate.
Background technology:
Cellulose acetate tow has good elasticity and heat endurance, the cigarette filter that processes with acetate fiber possesses special morphosis and chemical composition, nontoxic, tasteless, resistance to suction is little, high adsorption capacity, cut-off filter effect are remarkable, it can reduce the harmful substance in the flue gas, make cigarette not lose its basic flavor again, therefore being a kind of desirable cigarette filter material, is the primary raw material of producing cigarette filter in the world today.
Acetic acid synthesized in the world cellulosic be raw material usually with the wood pulps.Because wood pulp is a kind of very special commodity, main cause is raw material restriction, technical limitations, output investment ratio is bigger, the risk height adds the restriction of forest resourceies, problem of environmental pollution etc., present stage is in the seller's market substantially, the manufacturer is few, and the new entrant has still less had how tame production firm to close acetify level wood pulps factory in the world.China's acetic acid synthesized cellulosic raw material wood pulp at present mainly also relies on import, and the situation that wood pulps is in short supply has become the bottleneck of acetate fiber industrial development.
Summary of the invention:
The object of the present invention is to provide a kind of is the application of cellulose acetate in the preparation cigarette acetate silk that raw material is made with the hemp dissolving pulp.
Technical solution of the present invention is:
A kind of is the application of cellulose acetate in the preparation cigarette acetate silk that raw material is made with the hemp dissolving pulp.
The degree of acetylation of described cellulose acetate is 54.0～56.0, and average degree of polymerization is 200～600.
Adopting hemp dissolving pulp is the manufacture method of the cellulose acetate made of raw material, comprises the following steps: successively
(1) hemp dissolving pulp is pulverized: with the R-10 value is 60%～99.5%, and viscosity is that the tabular or cotton-shaped hemp dissolving pulp finished product of 4dl/g～10dl/g is ground into velvet-like by grinder;
(2) activation: acetic acid or aqueous acetic acid are sprayed on the hemp dissolving pulp after the pulverizing, perhaps hemp dissolving pulp are immersed in acetic acid or the aqueous acetic acid, carry out activation processing; The consumption of acetic acid is 20%～300% of a hemp dissolving pulp weight during activation processing, and the temperature of activation is 20～50 ℃, soak time 30～300 minutes;
(3) acetylation: acetylation is that solvent, aceticanhydride are that acetylizing agent, sulfuric acid are catalyst with acetic acid, with hemp dissolving pulp weight is benchmark, the aceticanhydride of the sulfuric acid of the acetic acid of 40～800% weight, 1～20% weight, 20～400% weight and hemp dissolving pulp is added in the reactor carry out acetylization reaction;
(4) hydrolysis: to adopt mass concentration be 10～40% the magnesium acetate aqueous solution as the hydrolytic reagent reaction that is hydrolyzed;
(5) precipitating: the slurry dilution after the dilute acetic acid solution of employing 3～10% concentration is finished acetylation, and make it precipitating;
(6) washing: adopt demineralized water that the cellulose acetate that separates out is washed processing;
(7) drying: handle under 90 ℃～120 ℃ conditions cellulose acetate after the washing being carried out drying, the moisture of cellulose acetate product is controlled at 1～5%, must product.
The initial temperature of acetylization reaction is from-10 ℃～35 ℃, and temperature rise rate is controlled at 0.5 ℃/min～3.0 ℃/min, and the time of acetylization reaction was controlled at 20～90 minutes.
During hydrolysis, hydrolytic reagent divides 2～4 addings, and the temperature of hydrolytic process is controlled at 50～200 ℃.
When washing was handled, washing temperature was controlled at 40～90 ℃, and the washing time is 20～120 minutes.
The cigarette that the present invention produces has following characteristic with acetate fiber:
(1) filament denier is 1-7denier, and fracture strength is 5～25CN/tex, and percentage elongation is 10～40%;
(2) because hemp dissolving pulp itself possesses natural antibacterial, antioxidant content, therefore adopting hemp dissolving pulp to prepare pipe tobacco compares with the cigarette acetate silk that with wood pulps, cotton pulp is raw material, antibacterial ability obviously strengthens, can effectively keep the edible health of cigarette, and the filter efficiency raising of TPM in the flue gas is reached 10% with filter tip;
(3) method provided by the invention can make and produce the cigarette required cost of material reduction by 10～30% of acetate fiber.
The invention will be further described below in conjunction with embodiment.
The specific embodiment:
Embodiment 1:
With the hemp dissolving pulp that R-10 is 97%, viscosity is 8.2dl/g is raw material, prepares cellulose acetate through following technology:
(1) hemp dissolving pulp is pulverized: cotton-shaped hemp dissolving pulp finished product is ground into velvet-like outward appearance by grinder.
(2) activation: acetic acid is sprayed on the hemp dissolving pulp after the pulverizing.The consumption of acetic acid is 35% of a hemp dissolving pulp weight, and the temperature of activation is 30 ℃, soak time 40 minutes.
(3) acetylation: with hemp dissolving pulp weight is benchmark; acetic acid with 300%, 10% sulfuric acid, 220% aceticanhydride and hemp dissolving pulp add in the acetify reactor; the initial temperature of reaction is since 4 ℃, and temperature rise rate is controlled to be 0.8 ℃/min, and the time of acetylization reaction is 49 minutes.
(4) hydrolysis: adopt mass concentration be 20% the magnesium acetate aqueous solution as hydrolytic reagent, begin back 1 hour, 2.5 hours, 5 little time-divisions in hydrolysis and add for three times.The temperature of hydrolytic process is controlled at 78 ℃.After 5 hours, end hydrolysis.
(5) precipitating: the slurry dilution after adopting the dilute acid soln of 10% concentration that acetylation is finished, and make it precipitating.
(6) washing: adopt demineralized water that the cellulose acetate that separates out is washed, washing temperature is 80 ℃, and the washing time is 100min.
(7) drying: under 105 ℃ of conditions the cellulose acetate after the washing is being carried out heated-air drying, the moisture of final cellulose acetate product is controlled at 3%.
The degree of acetylation that present embodiment finally prepares cellulose acetate is 55.3%, and average degree of polymerization is 440.Can be applicable to the preparation of cigarette acetate silk.
Embodiment 2:
With the hemp dissolving pulp that R-10 is 62%, viscosity is 10dl/g is raw material, prepares cellulose acetate through following technology:
(1) hemp dissolving pulp is pulverized: tabular hemp dissolving pulp finished product is ground into velvet-like outward appearance by grinder.
(2) activation: acetic acid is sprayed on the hemp dissolving pulp after the pulverizing.The consumption of acetic acid is 200% of a hemp dissolving pulp weight, and the temperature of activation is 40 ℃, soak time 300 minutes.
(3) acetylation: with hemp dissolving pulp weight is benchmark; acetic acid with 800%, 20% sulfuric acid, 400% aceticanhydride and hemp dissolving pulp add in the acetify reactor; the initial temperature of reaction is since 20 ℃, and temperature rise rate is controlled to be 0.5 ℃/min, and the time of acetylization reaction is 40 minutes.
(4) hydrolysis: adopt mass concentration be 10% the magnesium acetate aqueous solution as hydrolytic reagent, begin to add at twice in back 1 hour, 1.5 hours in hydrolysis.The temperature of hydrolytic process is controlled at 150 ℃.After 1.5 hours, end hydrolysis.
(5) precipitating: the slurry dilution after adopting the dilute acid soln of 6% concentration that acetylation is finished, and make it precipitating.
(6) washing: adopt demineralized water that the cellulose acetate that separates out is washed, washing temperature is 50 ℃, and the washing time is 120min.
(7) drying: under 118 ℃ of conditions the cellulose acetate after the washing is being carried out heated-air drying, the moisture of final cellulose acetate product is controlled at 3%.
Present embodiment finally prepares the preparation that cellulose acetate can be applicable to cigarette acetate silk.
Claims (2)
1, a kind of is the application of cellulose acetate in the preparation cigarette acetate silk that raw material is made with the hemp dissolving pulp.
2, according to claim 1 a kind of be the application of the cellulose acetate made of raw material in the preparation cigarette acetate silk with the hemp dissolving pulp, it is characterized in that: the degree of acetylation of described cellulose acetate is 54.0～56.0, average degree of polymerization is 200～600.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102363269A CN101411545A (en) | 2008-11-07 | 2008-11-07 | Use of cellulose acetate made from dissolving pulp of hemp as raw material in preparing acetate silk bind for cigarette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102363269A CN101411545A (en) | 2008-11-07 | 2008-11-07 | Use of cellulose acetate made from dissolving pulp of hemp as raw material in preparing acetate silk bind for cigarette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101411545A true CN101411545A (en) | 2009-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102363269A Pending CN101411545A (en) | 2008-11-07 | 2008-11-07 | Use of cellulose acetate made from dissolving pulp of hemp as raw material in preparing acetate silk bind for cigarette |
Country Status (1)
| Country | Link |
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| CN (1) | CN101411545A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106579542A (en) * | 2017-01-26 | 2017-04-26 | 福建金闽再造烟叶发展有限公司 | Paper pulp, preparation method thereof and fine cigarettes |
| CN112839534A (en) * | 2018-10-25 | 2021-05-25 | 株式会社大赛璐 | Tow band for electronic cigarette holder, method for manufacturing tow band for electronic cigarette holder, and method for manufacturing electronic cigarette holder |
-
2008
- 2008-11-07 CN CNA2008102363269A patent/CN101411545A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106579542A (en) * | 2017-01-26 | 2017-04-26 | 福建金闽再造烟叶发展有限公司 | Paper pulp, preparation method thereof and fine cigarettes |
| CN112839534A (en) * | 2018-10-25 | 2021-05-25 | 株式会社大赛璐 | Tow band for electronic cigarette holder, method for manufacturing tow band for electronic cigarette holder, and method for manufacturing electronic cigarette holder |
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Open date: 20090422 |