CN100333670C - Inorganic spinning additive and its application method - Google Patents
Inorganic spinning additive and its application method Download PDFInfo
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- CN100333670C CN100333670C CNB2004100468431A CN200410046843A CN100333670C CN 100333670 C CN100333670 C CN 100333670C CN B2004100468431 A CNB2004100468431 A CN B2004100468431A CN 200410046843 A CN200410046843 A CN 200410046843A CN 100333670 C CN100333670 C CN 100333670C
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- diacetate fiber
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Abstract
The present invention relates to an inorganic spinning additive and an application method thereof. The inorganic spinning additive is composed of inorganic particles or silicon carbide particles, which take silicon dioxide as a main body, and the particle diameters of the particles changes from a micron grade to a nanometer grade. The present invention is a spinning additive of inorganic material, which can be added to diacetate fibers, can improve the degradation speed of diacetate fiber material and can play reduce the function of fume tar without influencing spinning, and an application method thereof.
Description
Technical field
The present invention relates to a kind of a kind of spinning additive that diacetate fiber reduces tarry matters in smoke, improves the cigarette filter degradation speed that improves.
Background technology
Diacetate fiber is to be raw material with the cellulose, and the hydroxyl on the cellulosic molecule (OH) generates acetyl cellulose with the acetic acid effect, makes through dry spinning.74%～92% hydroxyl is acetylation in the diacetate fiber, and it begins to change at 140～150 ℃, and softening point is 200～230 ℃, and fusing point is 260～300 ℃.Acetate fiber is not subject to water-soaked, has been difficult for dirt, and washing is easy, and soft, and good springiness does not crease easily, so can be used for women's dress lining, lining material, women clothing material next to the shin etc.Also can with other fiber interweavings, produce various finished product silk fabrics.Diacetate fiber is as cigarette filter tip material in addition, and the effect of filtering harmful components in the flue gas is not replaced for other materials." smoking is with healthy " " smoking and environment " paid close attention to by the increasing public at present.Yet the patent of adding functional material in the diacetate fiber spinning process is still few.Among the US5150721 citric acid is directly added blend in the slurries, material has spinnability, and is used for can reducing smoking nicotine behind the cigarette filter material.
Summary of the invention
Purpose of the present invention aims to provide a kind of adding in the diacetate fiber, can improve the degradation speed of diacetate fiber material, also can play the effect that reduces tarry matters in smoke, and the inorganic material that does not influence spinning is as spinning additive and application process thereof.
The objective of the invention is to realize by following manner:
Inorganic spinning additive of the present invention is made of inorganic particle or silicon-carbide particle based on silica, and grain diameter is from the micron order to the nanoscale.
Described silica is that the inorganic particle of main body comprises silica, silica gel, white carbon black, zeolite, crystalline silica-aluminate.
Described particle diameter is 15nm～50 μ m.Optimized scope is at 0.1～5 μ m.
Application process of the present invention is that inorganic spinning additive application is added in the diacetate fiber, to improve the degradation speed of diacetate fiber.
Application process of the present invention is that inorganic spinning additive is used to be added on and made the cigarette filter material in the diacetate fiber, to reduce tar content.
Inorganic spinning additive interpolation scope of the present invention accounts for 1%～60% of cellulose diacetate and mixes the back with water that the addition scope accounts for the 3-6% of acetone solvent and add the diacetate fiber spinning slurry, or account for inorganic spinning additive 0.05-0.4% with its addition of silane coupler and add in the diacetate fiber spinning slurry directly blend jointly, by weight.
It is that tetraethoxysilane, KH560 are γ-(2,3-epoxy third oxygen) propyl trimethoxy silicane that described preferable coupling agent has TEOS), KH550 (gamma-aminopropyl-triethoxy-silane), optimum silane coupler has TEOS, KH560.
The present invention is to be that the spinning additive joins in the diacetate fiber blend and improves diacetate fiber and reduce tarry matters in smoke, improve the cigarette filter degradation speed with the inorganic adsorbing material based on the inorganic particle of silica or silicon-carbide particle.Inorganic spinning additive of the present invention is by joining in the diacetate fiber dissolving slurries, make the composition of additive can be added to the inside of diacetate fiber composition fully, its compatibility and rheological characteristic all do not influence spinnability, but changed the surface characteristic of tow, make it be uneven and a little slight crack occurred, thereby increased its specific area, improved its absorption property, also improved the degradation speed of tow simultaneously.
Description of drawings
Fig. 1 is the load-deformation curve that does not add the cellulose diacetate of silica
Fig. 2 is the load-deformation curve of the cellulose diacetate behind the adding silica
Fig. 3 changes for silica adds the fine surface of back vinegar
The specific embodiment
The present invention also will make further demonstration in conjunction with example:
Embodiment 1:
Acetate silk product first procedure will pass through the synthetic of cellulose diacetate, its technological process comprises: wood pulp-fragmentation, drying-acetify-aging-precipitation-washing dehydrates-mixes, seven road technologies, after synthetic, the vinegar sheet is a spinning technique through second operation work again, flow process comprises: dissolving-filtration deaeration-spinning-curl, crumple-dry bale packing, also has removal process during this time to solvent acetone, it is to add in spinning technique " dissolving " operation in second operation work mainly that 0.1～5 μ m silica is added in this experiment, because after 0.1～5 μ m silica and the silane coupler TEOS reaction, can be dispersed in acetone and the water, and not be filtered.Therefore can directly in the slurries of acetate fiber dissolving acetone, add, in 550 kilograms of diacetate fiber acetone spinning slurries, contain diacetate fiber 27%, add 0.1～5 μ m silica additive and account for diacetate fiber 5%, silane coupler has TEOS to account for slurries 0.1%, carries out spinning.
Fiber Main physical performance is measured disconnected strong, the percentage elongation at total dawn of tow by INSTRON MODEL 1011-strength tester, and the powerful fineness instrument of LENZING VN400-monofilament (measuring disconnected strong, the dawn number, percentage elongation of individual thread etc.) sees the following form:
| Single dawn Titer (den) | Disconnected strong Tenacity (CN/tex) | Percentage elongation Elong (%) | |
| Common vinegar fibre (containing titanium dioxide) | 2.68 | 12.2 | ?27.2 |
| The fine long filament (not containing titanium dioxide) of vinegar | 4.61 | 12.8 | ?29.1 |
| Contain silica vinegar fibre | 2.88 | 11.492(1.30) | 22.7 |
From above parameter as can be known additive do not influence the normal spinning of vinegar fibre.Influence very little to fibroin after from description of drawings Fig. 1,2 load-deformation curves, also adding additive as can be seen.Just disconnected strong the reduction, elongation at break diminishes.
Among Fig. 3, silica is evenly distributed on the surface of tow substantially except that minority has gathering; Amplify in 3000 times the photo, because the existence of silica, the surface of tow is uneven, has increased its specific area; Amplify among 5000 to 20000 times the photo figure, find that a little slight crack has appearred in the surface of tow, but its disconnected strong average out to 1.30g/den and normal 1.38g/den do not have obvious decline; Its percentage elongation is 22.7%, compares with normal 25% not have obviously to descend.Infer: it is owing to the dispersant that adds a little causes that there is the crackle estimation in the surface of tow, but under the prerequisite of the disconnected strong and percentage elongation that does not influence tow, this crackle has increased its specific area, can improve the absorption property of tow, has improved vinegar fiber material degradation speed simultaneously.
With tow by cigarette with after the filter forming machine moulding, cigarette sees the following form with the filter tip technological parameter:
| Weight | Resistance to suction | Circumference | Hardness | |
| Silica | 0.7587 | ?353.8 | ?24.016 | ?88.24 |
| Contrast | 0.7502 | ?353.4 | ?24.013 | ?86.45 |
Behind the cigarette pipe tobacco, cigarette props up and falls close-burning and really compare
| COmg/ props up | Tar mg/ props up | Nicotine mg/ props up | |
| Silica | 14.10 | ?10.325 | ?1.02174 |
| Contrast | 14.12 | ?18.675 | ?1.21087 |
By in the last table as can be seen after adding 5% silica, reduce by 8 milligrams in tar.
Embodiment 2
In 500 kilograms of diacetate fiber acetone spinning slurries, contain diacetate fiber 30%, add the white carbon black additive of 1～2 μ m and account for diacetate fiber 7%, add entry and account for 5% of diacetate fiber solvent acetone, carry out spinning.
Fiber Main physical performance is measured disconnected strong, the percentage elongation at total dawn of tow by INSTRON MODEL 1011-strength tester, and the powerful fineness instrument of LENZING VN400-monofilament (measuring disconnected strong, the dawn number, percentage elongation of individual thread etc.) sees the following form:
| Single dawn Titer (den) | Disconnected strong Tenacity (CN/tex) | Percentage elongation Elong (%) | |
| Common vinegar fibre (containing titanium dioxide) | 2.64 | ?12.2 | ?27.2 |
| The fine long filament (not containing titanium dioxide) of vinegar | 459 | ?12.8 | ?29.1 |
| Contain white carbon black vinegar fibre | 2.68 | ?11.5 | ?22.1 |
From above parameter as can be known additive do not influence the normal spinning of vinegar fibre.Just disconnected strong the reduction, elongation at break diminishes.
With tow by cigarette with after the filter forming machine moulding, cigarette is identical with last example 1 with the filter tip technological parameter, behind the cigarette pipe tobacco, cigarette props up and falls close-burning and really compare
| COmg/ props up | Tar mg/ props up | Nicotine mg/ props up | |
| Contain white carbon black vinegar fibre | 13.59 | ?11.574 | ?1.0156 |
| Contrast | 14.12 | ?18.675 | ?1.21087 |
By in the last table as can be seen after adding 7% white carbon black, 7 milligrams in reduction tar.
Embodiment 3
In 550 kilograms of diacetate fiber acetone spinning slurries, contain diacetate fiber 27%, add 50～100nm carborundum additive and account for diacetate fiber 10%, silane coupler has KH-560 to account for slurries 0.1% to carry out spinning.Fiber Main physical performance sees the following form:
| Single dawn Titer (den) | Disconnected strong Tenacity (CN/tex) | Percentage elongation Elong (%) | |
| Common vinegar fibre (containing titanium dioxide) | 2.67 | ?12.2 | ?27.2 |
| The fine long filament (not containing titanium dioxide) of vinegar | 458 | ?12.8 | ?29.1 |
| Silicon carbide-containing vinegar fibre | 2.64 | ?11.6 | ?22.8 |
From above parameter as can be known additive do not influence the normal spinning of vinegar fibre.
With tow by cigarette with after the filter forming machine moulding, cigarette is identical with last example 1 with the filter tip technological parameter, behind the cigarette pipe tobacco, cigarette props up and falls close-burning and really compare
| COmg/ props up | Tar mg/ props up | Nicotine mg/ props up | |
| Silicon carbide-containing vinegar fibre | 14.15 | ?9.5 | ?1.0047 |
| Contrast | 14.12 | ?18.675 | ?1.21087 |
By in the last table as can be seen after adding 10% carborundum, reduce by 9 milligrams in tar.
Claims (10)
1, a kind of inorganic spinning additive is characterized in that being made of inorganic particle or silicon-carbide particle based on silica, grain diameter by micron order to nanoscale.
2, a kind of inorganic spinning additive according to claim 1 is characterized in that described silica is that the inorganic particle of main body comprises silica, silica gel, white carbon black, zeolite, crystalline silica-aluminate.
3, a kind of inorganic spinning additive according to claim 1 and 2 is characterized in that described particle diameter is 15nm～50 μ m.
4, a kind of inorganic spinning additive according to claim 1 and 2 is characterized in that described particle diameter is 0.1～5 μ m.
5, a kind of application rights requires the method for 1 described inorganic spinning additive, it is characterized in that inorganic spinning additive application is added in the diacetate fiber, to improve the degradation speed of diacetate fiber.
6, inorganic spinning Application of Additives method according to claim 5, it is characterized in that water that 1%～60% inorganic spinning additive that addition accounts for cellulose diacetate and addition account for acetone solvent 3-6% mixes the back and adds the diacetate fiber spinning slurry, or add directly blend in the diacetate fiber spinning slurry jointly with silane coupler that addition accounts for inorganic spinning additive 0.05-0.4%, by weight.
7, inorganic spinning Application of Additives method according to claim 6 is characterized in that described silane coupler has tetraethoxysilane or γ-(2,3-epoxy third oxygen) propyl trimethoxy silicane or gamma-aminopropyl-triethoxy-silane.
8, a kind of application rights requires the method for 1 described inorganic spinning additive, it is characterized in that inorganic spinning additive is used to be added on to make the cigarette filter material in the diacetate fiber, to reduce tar content.
9, inorganic spinning Application of Additives method according to claim 8, it is characterized in that water that 1%～60% inorganic spinning additive that addition accounts for cellulose diacetate and addition account for acetone solvent 3-6% mixes the back and adds the diacetate fiber spinning slurry, or add directly blend in the diacetate fiber spinning slurry jointly with silane coupler that addition accounts for inorganic spinning additive 0.05-0.4%, by weight.
10, inorganic spinning Application of Additives method according to claim 9 is characterized in that described silane coupler has tetraethoxysilane or γ-(2,3-epoxy third oxygen) propyl trimethoxy silicane or gamma-aminopropyl-triethoxy-silane.
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| CNB2004100468431A CN100333670C (en) | 2004-10-15 | 2004-10-15 | Inorganic spinning additive and its application method |
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| CN100333670C true CN100333670C (en) | 2007-08-29 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101194757B (en) * | 2007-12-21 | 2011-11-09 | 湖南中烟工业有限责任公司 | Cigarette filter-tip additive agent, preparation and application method thereof |
| CN102071487B (en) * | 2010-11-19 | 2013-09-11 | 无锡中科光远生物材料有限公司 | Preparation method of organic-inorganic nanocomposite film |
| CN106509985A (en) * | 2016-12-14 | 2017-03-22 | 郑州人造金刚石及制品工程技术研究中心有限公司 | Cigarette filter tip and preparation method thereof |
| CN106723343B (en) * | 2017-04-06 | 2020-04-14 | 上海烟草集团有限责任公司 | Composite cigarette filter stick capable of reducing tar release amount of cigarettes and preparation method thereof |
| CN110685021B (en) * | 2019-09-26 | 2021-06-04 | 湖北新阳特种纤维股份有限公司 | Preparation method of cellulose diacetate fiber for spinning |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063606A (en) * | 1990-12-25 | 1992-08-19 | 米·格·沃伦科夫 | Cigaratte filter |
| US5150721A (en) * | 1990-02-28 | 1992-09-29 | Lee Benedict M | Tobacco smoke filter material and process for production thereof |
| CN1465549A (en) * | 2002-07-04 | 2004-01-07 | 厦门大学 | Procesxs for producing continuous silicon carbide fibre by skin and core double-composition fibre method |
| CN2607798Y (en) * | 2003-03-16 | 2004-03-31 | 张重光 | Cigarette filter tip capable of filtering harmful component to raise cigarette quality and usability |
-
2004
- 2004-10-15 CN CNB2004100468431A patent/CN100333670C/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5150721A (en) * | 1990-02-28 | 1992-09-29 | Lee Benedict M | Tobacco smoke filter material and process for production thereof |
| CN1063606A (en) * | 1990-12-25 | 1992-08-19 | 米·格·沃伦科夫 | Cigaratte filter |
| CN1465549A (en) * | 2002-07-04 | 2004-01-07 | 厦门大学 | Procesxs for producing continuous silicon carbide fibre by skin and core double-composition fibre method |
| CN2607798Y (en) * | 2003-03-16 | 2004-03-31 | 张重光 | Cigarette filter tip capable of filtering harmful component to raise cigarette quality and usability |
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Owner name: HUNAN ZHONGYAN INDUSTRY CO., LTD. Free format text: FORMER NAME OR ADDRESS: CHINA TOBACCO HUNAN INDUSTRIAL CORPORATION |
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Address after: Wanjiali Road, Yuhua District of Hunan province Changsha three No. 188 Patentee after: China Tobacco Hunan Industrial Co., Ltd. Address before: Seven pieces of Mars Development Zone, Hunan, Changsha Patentee before: China Tobacco Hunan Industrial Corporation |