CN103726117B - Composite medical fiber - Google Patents
Composite medical fiber Download PDFInfo
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- CN103726117B CN103726117B CN201310666033.5A CN201310666033A CN103726117B CN 103726117 B CN103726117 B CN 103726117B CN 201310666033 A CN201310666033 A CN 201310666033A CN 103726117 B CN103726117 B CN 103726117B
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- mixed liquor
- medical fiber
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- viscose glue
- hydroxide solution
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Abstract
The present invention discloses a kind of composite medical fiber, described medical fibre is by following process: the mass ratio Homogeneous phase mixing under 160 DEG C of conditions viscose glue stoste and rare earth carbonate particulate being pressed 100:2 obtains mixed liquor, this viscose glue stoste is the sodium hydroxide solution including sodium cellulose xanthate, and in sodium hydroxide solution, sodium cellulose xanthate is by being extracted pure alpha-cellulose, obtaining with caustic soda, carbon disulfide process by cellulosic material; Defoamer is added mixed liquor; After mixed liquor is extruded formation mixed liquor thread by spinneret orifice, be frozen into spun filament through coagulating bath, this coagulating bath comprises following component: H
2sO
4?for 88g/L, Na
2sO
4for 175g/L, ZnSO
4for 90g/L; Spun filament is carried out drawing-off and form composite fibre long filament.Medical fiber membrane of the present invention well can prevent the irradiation of X-ray, can be used for the protective clothing in ward, and has natural degradable function, is all free from side effects to human body and environment.
Description
Technical field
The present invention relates to a kind of composite medical fiber, belong to technical field of textile fabric.
Background technology
Along with the raising day by day of people's awareness of safety, in world wide, the total flow of security protection series products is also in the trend increased year by year.Security protection fiber is one of important kind of security protection material, be widely used in the fields such as oil, chemical industry, metallurgy, shipbuilding, fire-fighting, army and have naked light, distribute spark, motlten metal and have the place of combustible material.Due to scientific and technological progress, expanding economy, particularly government to the attention of dangerous operation facility personnel security protection, make security protection material all or part of employing new and high technology composite already.
Health type is divided to protect by safeguard function, as radiation proof, cold-proof, heat insulation and antibacterial etc.; Safety-type protects, as fire-retardant, antistatic, shellproof, anti-stab, acid-proof and insect protected etc.; For keeping the protection of health, as grease proofing, dust-proof and refuse water etc.The material of protection, except meeting except high-strength, high-anti-friction etc. requires, often variant because protection object, preventing principle are different, generally there are defence physics, chemistry and biological etc.
Ray to the harm of human body just more and more pay attention to by people, the staff under many specific work environments needs to dress special ray protective clothing.
In general, ray protection material, according to the kind of shielded ray, is also divided into two classes, one is X-ray protection material, primary protection X-ray gamma rays etc., another kind is the protective materials of common Non-ionizing radiation, is mainly used to protection electromagnetic radiation and part long wave ray.At present, X-ray protection material mainly makes of the rubber of leaded (Pb), is used for hospital radiological department at present, school experiment room, nuclear industry environment etc.
Lead belongs to heavy metal has very large harm to human body.Lead can not be decomposed in water, and people drinks rear toxicity and amplifies, and other toxin in water are combined and generate the larger organic matter of toxicity.Plumbous be generally extensively present in occurring in nature with natural concentration, but due to the exploitation of mankind's heavy metal, smelting, processing and business manufacturing activities increasing, cause many lead to enter in air, water, soil, cause serious environmental pollution.The heavy metal that human injury exists with various chemical state or chemical form, will retain, accumulates and move, work the mischief after entered environment or the ecosystem.Plumbous: to be the one that heavy metal pollution Poisoning is larger, to be difficult to get rid of once enter human body, the brain cell of the direct harm people of energy, the particularly nervous system of fetus, congenital feeblemindedness can be caused, the headache of people, dizziness, insomnia, forgetful, refreshing smart entanglement, arthralgia, calculus, cancer can be caused.Plumbous pollution problem is more and more paid attention in China.
Summary of the invention
The object of the invention is to provide a kind of composite medical fiber, and this medical fiber membrane well can prevent the irradiation of X-ray, can be used for the protective clothing in ward, and has natural degradable function, is all free from side effects to human body and environment.
For achieving the above object, the technical solution used in the present invention is: a kind of composite medical fiber, and described composite medical fiber is obtained by following process, process this comprise the following steps:
Step one, the mass ratio Homogeneous phase mixing under 160 DEG C of conditions viscose glue stoste and rare earth carbonate particulate being pressed 100:2 obtain mixed liquor, this viscose glue stoste is the sodium hydroxide solution including sodium cellulose xanthate, and in sodium hydroxide solution, sodium cellulose xanthate is by being extracted pure alpha-cellulose, obtaining with caustic soda, carbon disulfide process by cellulosic material;
Step 2, defoamer added mixed liquor through step one, in order to remove the foam in mixed liquor;
Step 3, the mixed liquor obtained is cooked further filtration;
Step 4, the mixed liquor of step 3 is extruded formed mixed liquor thread by spinneret orifice after, then through 90 ~ 95 DEG C of coagulating baths, this mixed liquor thread is frozen into spun filament, this coagulating bath comprises following component:
H
2SO
488g/L，
Na
2SO
4175g/L，
ZnSO
490g/L；
Step 5, the spun filament of step 4 carried out drawing-off and form composite fibre long filament;
In described step 2, defoamer is silicone defoaming agent, and addition adds 0.05 ~ 0.10% after pressing 1:6 dilution.
As preferably, between described step one and step 2, be provided with filtration treatment, the particle larger for filtering and impurity.
As preferably, the time of stirring during Homogeneous phase mixing in described step one is 60min.
As preferably, the extensibility of drawing-off in described step 5 is 15 ~ 20%.
Because technique scheme is used, the present invention compared with prior art has following advantages and effect:
Composite medical fiber of the present invention, it makes cotton piece through nonwovens process, cotton piece is placed on X ray test instrument and tests its lead equivalent, its test result: lead equivalent is 0.63mmPb.(the protection highest level III of X-ray protection clothes requires lead equivalent >=0.50mmPb), as can be seen from above-mentioned test result, the composite made by the method has the function of good X-ray-preventing; Secondly, because two main raw material viscose glue stostes of the present invention and rare earth carbonate are all natural natural components, there is natural degradable function, human body and environment are all free from side effects.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described:
Embodiment 1-3: a kind of composite medical fiber, described composite medical fiber is obtained by following process, process this comprise the following steps:
Step one, the mass ratio Homogeneous phase mixing under 160 DEG C of conditions viscose glue stoste and rare earth carbonate particulate being pressed 100:2 obtain mixed liquor, this viscose glue stoste is the sodium hydroxide solution including sodium cellulose xanthate, and in sodium hydroxide solution, orange-yellow sodium cellulose xanthate is by being extracted pure alpha-cellulose, obtaining with caustic soda, carbon disulfide process by cellulosic material;
Step 2, defoamer added mixed liquor through step one, in order to remove the foam in mixed liquor, defoamer is silicone defoaming agent, and addition is for press interpolation 0.05 ~ 0.10% after about 1:6 dilution;
Step 3, the mixed liquor obtained is cooked further filtration, the impurity further in removing mixed liquor and larger particles, so that spinning moulding;
Step 4, the mixed liquor of step 3 is extruded formed mixed liquor thread by spinneret orifice after, again through 90 ~ 95 DEG C of coagulating baths, this coagulation bath temperature is conducive to solidifying of viscose glue stoste, forms the structure of even compact, also be conducive to forming overall orientation degree high, the fiber that crystallization is fairly perfect; Temperature (concentration) is too high or too low is all unfavorable for the structure forming even compact;
This mixed liquor thread is frozen into spun filament, and this coagulating bath comprises following component:
H
2SO
488g/L，
Na
2SO
4175g/L，
ZnSO
490g/L；
Step 5, the spun filament of step 4 carried out drawing-off and form composite fibre long filament.
Be provided with filtration treatment between above-mentioned steps one and step 2, the particle larger for filtering and impurity, the impurity further in removing mixed liquor and larger particles, so that spinning moulding.
The time of stirring during Homogeneous phase mixing in above-mentioned steps one is 60min.
The extensibility of drawing-off in above-mentioned steps five is 15 ~ 20%.
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (4)
1. a composite medical fiber, is characterized in that: described security protection medical fibre is obtained by following process, and process comprises the following steps:
Step one, the mass ratio Homogeneous phase mixing under 160 DEG C of conditions viscose glue stoste and rare earth carbonate particulate being pressed 100:2 obtain mixed liquor, this viscose glue stoste is the sodium hydroxide solution including sodium cellulose xanthate, and in sodium hydroxide solution, sodium cellulose xanthate is by being extracted pure alpha-cellulose, obtaining with caustic soda, carbon disulfide process by cellulosic material;
Step 2, defoamer added mixed liquor through step one, in order to remove the foam in mixed liquor;
Step 3, the mixed liquor obtained is cooked further filtration;
Step 4, the mixed liquor of step 3 is extruded formed mixed liquor thread by spinneret orifice after, then through 90 ~ 95 DEG C of coagulating baths, this mixed liquor thread is frozen into spun filament, this coagulating bath comprises following component:
H
2SO
488g/L，
Na
2SO
4175g/L，
ZnSO
490g/L；
Step 5, the spun filament of step 4 carried out drawing-off and form composite fibre long filament;
In described step 2, defoamer is silicone defoaming agent, and addition adds 0.05 ~ 0.10% after pressing 1:6 dilution.
2. composite medical fiber according to claim 1, is characterized in that: be provided with filtration treatment between described step one and step 2, the particle larger for filtering and impurity.
3. composite medical fiber according to claim 1, is characterized in that: the time of stirring during Homogeneous phase mixing in described step one is 60min.
4. composite medical fiber according to claim 1, is characterized in that: the extensibility of drawing-off in described step 5 is 15 ~ 20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310666033.5A CN103726117B (en) | 2012-02-26 | 2012-02-26 | Composite medical fiber |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310666033.5A CN103726117B (en) | 2012-02-26 | 2012-02-26 | Composite medical fiber |
| CN 201210046803 CN102605451B (en) | 2012-02-26 | 2012-02-26 | Degradable composite medical fiber |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210046803 Division CN102605451B (en) | 2012-02-26 | 2012-02-26 | Degradable composite medical fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103726117A CN103726117A (en) | 2014-04-16 |
| CN103726117B true CN103726117B (en) | 2016-03-16 |
Family
ID=46523199
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210046803 Active CN102605451B (en) | 2012-02-26 | 2012-02-26 | Degradable composite medical fiber |
| CN201310666100.3A Active CN103726118B (en) | 2012-02-26 | 2012-02-26 | For the medical fibre of X-ray-preventing |
| CN201310666033.5A Active CN103726117B (en) | 2012-02-26 | 2012-02-26 | Composite medical fiber |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210046803 Active CN102605451B (en) | 2012-02-26 | 2012-02-26 | Degradable composite medical fiber |
| CN201310666100.3A Active CN103726118B (en) | 2012-02-26 | 2012-02-26 | For the medical fibre of X-ray-preventing |
Country Status (1)
| Country | Link |
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| CN (3) | CN102605451B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106215223A (en) * | 2016-07-28 | 2016-12-14 | 湖南帝星智能科技有限公司 | A kind of chitosan and bamboo fibre are blended the preparation method of wet nonwoven fabrics medical dressing |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1123849A (en) * | 1994-12-03 | 1996-06-05 | 天津纺织工学院 | Infrared multifunctional fiber and its munafacture |
| CN1054973C (en) * | 1995-07-18 | 2000-08-02 | 冶金工业部钢铁研究总院 | Ultravidet and optical resistant textile |
| CN1089326C (en) * | 1998-02-27 | 2002-08-21 | 珠海经济特区天年高科技国际企业公司 | Inorganic oxide composite powder capable of inducing negative air ion and the fabric containing it |
| CN1102682C (en) * | 1999-01-25 | 2003-03-05 | 吉林化纤股份有限公司 | Functional Chinese medical stone fibres and its making method |
| JP2001242288A (en) * | 2000-02-29 | 2001-09-07 | Toshiba Corp | Radiation shielding material, and radiation shielding suit, radiation shield and radiation shielding equipment using it |
| JP4776297B2 (en) * | 2005-08-03 | 2011-09-21 | 倉敷紡績株式会社 | Method for producing cellulose / gelatin composite viscose rayon filament |
| CN101137285B (en) * | 2007-10-12 | 2010-08-25 | 魏宗源 | Composite shielding material for medical X-ray protection |
| CN101805934B (en) * | 2010-04-02 | 2012-11-07 | 山东海龙股份有限公司 | Ice-cold viscose fiber and preparation method thereof |
| CN101857983A (en) * | 2010-05-24 | 2010-10-13 | 杭州奥通科技有限公司 | Production method of high wet modulus synthetic fiber containing bamboo |
| CN102011205B (en) * | 2010-10-19 | 2012-03-28 | 山东海龙股份有限公司 | Germanium viscose fiber and preparation method thereof |
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2012
- 2012-02-26 CN CN 201210046803 patent/CN102605451B/en active Active
- 2012-02-26 CN CN201310666100.3A patent/CN103726118B/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| CN102605451B (en) | 2013-12-18 |
| CN103726118A (en) | 2014-04-16 |
| CN102605451A (en) | 2012-07-25 |
| CN103726118B (en) | 2015-10-28 |
| CN103726117A (en) | 2014-04-16 |
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Address after: 215335 Kunshan economic and Technological Development Zone, Suzhou, No. three lane road, No. 417, Jiangsu Applicant after: Kunshan Huayang new material limited company Address before: 215335 Kunshan economic and Technological Development Zone, Suzhou, No. three lane road, No. 417, Jiangsu Applicant before: Kunshan Huayang Composites Technology Co., Ltd. |
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