Three, summary of the invention
Viscose with antibacterial functions of the present invention, to contain concentration be 5-20.5% (volume), account for the Bamboo vinegar solution of viscose gross weight 0.1-5%; Be preferably the Bamboo vinegar solution that to contain concentration be 10-20 (volume) %, account for viscose gross weight 0.2-3%; The Bamboo vinegar solution that is that to contain concentration be 14-17 (volume) %, accounts for viscose gross weight 0.5-2% that can select.
Production method with viscose of antibacterial functions of the present invention, comprise filtration, yellow, spinning and post-processing step, wherein earlier raw liquid of bamboo vinegar is filtered (secondary or three times), filter out suspended matter wherein, being diluted with water to needs concentration again, then with pH value adjusted value 3.0-6.0, color is faint yellow, temperature is a normal temperature, and good seal, prevent the volatilization and foreign material fall into.
Cellulose pulp through common process such as blank, screening, preliminary treatment, dipping, pulverizing, experienced and yellows after, when the yellow of alkali cellulose fiber, by adding dilution heat of sulfuric acid, the pH value of spinning solution is adjusted between the 7.5-9.5 dissolution phase adding Bamboo vinegar solution when yellow finishes.After Bamboo vinegar solution added, through 1-2 hour stirring, making viscosity was 20-45 second, and the first fibre is 9.0-9.5%, and ripe degree is a 5-13 milliliter bamboo vinegar liquid rayon spinning stoste.
In the production method of the viscose with antibacterial functions of the present invention, after the viscose spinning solution of bamboo vinegar liquid filtered through three times, on short silk spinning machine, carry out spinning, spinning head 1.5-3.0D, aperture ratio>3, spinning pressure 15-30kPa, spinning speed 35-50 rice/minute, spinning humidity is 60-70%, and temperature is 20-25 ℃.The solidification liquid constituent is: sulfuric acid 90-110 grams per liter, sodium sulphate 310-330 grams per liter, zinc sulfate 10-15 grams per liter, acid bath drop<4 grams per liters, temperature 30-45 ℃.After fibre bundle solidified, through three washings, wash temperature was 60-70 ℃, and desulfurization temperature is 70-80 ℃, and concentration is the 3.5-4.5 grams per liter, and then through oiling, oil bath concentration is the 2.5-3.5 grams per liter, and after oiling, classification and packing are sheared in oven dry.
In the present invention owing to adopt natural Bamboo vinegar solution as antibiotic raw material, so product is nontoxic, harmless to human body, has fabulous anti-microbial property.
Further, the viscose the key technical indexes with antibacterial functions of the present invention can be or greater than:
Line density (dtex) 1.67-3.33
Do fracture strength cN/dtex 1.95 elongation at breaks (%) 17.4
Ultimate strength CV (%) 6.63 elongation at break CV (%) 6.9
Wet breaking strength cN/dtex 1.98 ultimate strength CV (%) 2.62
Antibiotic index>95% regain (%) 13
PH value 6-7
Four, the specific embodiment
Describe the present invention in detail below in conjunction with specific embodiment; described embodiment is in order better to explain the present invention; rather than to the restriction of claim protection domain of the present invention, all belong to the scope that the present invention asks for protection based on the modification and the change of basic thought of the present invention.
In the present invention, if not refer in particular to, all parts, amount are the unit of weight based on gross weight, and all raw materials all can be buied from market.
Embodiment 1:
1.5D, 38 centimetres of antibacterial viscose fibers, raw material: former Bamboo vinegar solution (concentration 21 (volume) %), former cotton pulp.It is 1.5% that the design Bamboo vinegar solution accounts for fiber weight percentage.
At first Bamboo vinegar solution is carried out twice filtration, the filtering suspended material, and Bamboo vinegar solution concentration is modulated to 12.5% with distilled water, pH value is adjusted to about 4.
Cellulose pulp process: behind the common process such as blank, screening, preliminary treatment, dipping, pulverizing, experienced and yellow, when the yellow of alkali cellulose fiber, by adding dilution heat of sulfuric acid, spinning solution PH is transferred to about 8, in the course of dissolution when yellow finishes, the Bamboo vinegar solution modulating liquid of getting ready is added, stirring through 1 hour, making viscosity is 35 ± 1, and the first fibre is 9.4 ± 0.1%, and ripe degree is the rayon spinning stoste of 9 ± 1 milliliters bamboo vinegar liquid.
Through after the above-mentioned technology, after the rayon spinning stoste of bamboo vinegar liquid filtered through three times, on short silk spinning machine, carry out spinning, its solidification liquid constituent is: sulfuric acid 95 ± 2 grams per liters, sodium sulphate 325 ± 2 grams per liters, zinc sulfate 11 ± 1 grams per liters, acid bath drop<4 grams per liters, 35 ± 1 ℃ of temperature.Spinning head 1.5D, the aperture ratio is 4.5, spinning pressure 21 ± 0.5kPa, 40 meters/minute of spinning speeds.
After fibre bundle solidified, through three washings, wash temperature was 65 ℃, and desulfurization temperature is 70 ℃, and concentration is 3.5 ± 0.1 grams per liters.And then through oiling, oil bath concentration is 2.7 ± 0.1 grams per liters, after oiling, and oven dry, shearing, classification and packing.
Testing result:
ASTM E 2149
Specimen | ' 0 hour ' bacterial population | ' 24 hours ' bacterial population | Bacteriostasis rate | Sterilizing rate |
Antibacterial viscose fiber | / | 1.4×10
3 | 100% | 98.5% |
Control sample | 9.5×10
4 | 1.1×10
7 | / | / |
N
3 | | 114.3 | | |
Embodiment 2:
3D, random length antibacterial viscose fiber, raw material: former Bamboo vinegar solution (concentration 21 (volume) %), former cotton pulp.It is 0.7% that the design Bamboo vinegar solution accounts for fiber weight percentage.
At first Bamboo vinegar solution is carried out twice filtration, the filtering suspended material, and Bamboo vinegar solution concentration is modulated to 17% with distilled water, pH value is adjusted to about 3.5.
Cellulose pulp process: behind the common process such as blank, screening, preliminary treatment, dipping, pulverizing, experienced and yellow, when the yellow of alkali cellulose fiber, by adding dilution heat of sulfuric acid, spinning solution PH is transferred to about 8.5, in the course of dissolution when yellow finishes, the Bamboo vinegar solution modulating liquid of getting ready is added, stirring through 2 hours, making viscosity is 37 ± 1, and the first fibre is 9.2 ± 0.1%, and ripe degree is the rayon spinning stoste of 10 ± 1 milliliters of bamboo vinegar liquids
Through after the above-mentioned technology, after Bamboo vinegar solution viscose spinning solution filtered through three times, on short silk spinning machine, carry out spinning, its solidification liquid constituent is: sulfuric acid 100 ± 2 grams per liters, sodium sulphate are 320 ± 2 grams per liters, and zinc sulfate is 12 ± 1 grams per liters, acid bath drop<4 grams per liters, 35 ± 1 ℃ of temperature.Spinning head 3D, the aperture ratio is 3.5, spinning pressure 20 ± 0.5kPa, 40 meters/minute of spinning speeds.
After fibre bundle solidified, through three washings, wash temperature was 65 ℃, and desulfurization temperature is 70 ℃, and concentration is 4 ± 0.1 grams per liters.And then through oiling, oil bath concentration is 3.2 ± 0.1 grams per liters, and after oiling, oven dry is sheared, classification, packing.
Testing result:
ASTME 2149
Specimen | ' 0 hour ' bacterial population | ' 24 hours ' bacterial population | Bacteriostasis rate | Sterilizing rate |
Antibacterial viscose fiber | / | 1.0×10
3 | 100% | 99.8% |
Control sample | 5.9×10
4 | 6.0×10
7 | / | / |
N
3 | | 1017 | | |
Embodiment 3
2.5D, 36 centimetres of antibacterial viscose fibers, raw material: former Bamboo vinegar solution (concentration 20 (volume) %), bamboo fibre and former cotton pulp.It is 0.4% that the design Bamboo vinegar solution accounts for fiber weight percentage.
At first Bamboo vinegar solution is carried out twice filtration, the filtering suspended material, and Bamboo vinegar solution concentration is modulated to 10% with distilled water, pH value is adjusted to about 4.5.
Cellulose pulp process: behind the common process such as blank, screening, preliminary treatment, dipping, pulverizing, experienced and yellow, when the yellow of alkali cellulose fiber, by adding dilution heat of sulfuric acid, spinning solution PH is transferred to about 7.5, in the course of dissolution when yellow finishes, the Bamboo vinegar solution modulating liquid of getting ready is added, stirring through 1.5 hours, making viscosity is 22 ± 1, and the first fibre is 9.1 ± 0.1%, and ripe degree is the rayon spinning stoste of 7 ± 1 milliliters of bamboo vinegar liquids
Through after the above-mentioned technology, after Bamboo vinegar solution viscose spinning solution filtered through three times, on short silk spinning machine, carry out spinning, its solidification liquid constituent is: sulfuric acid 94 ± 2 grams per liters, sodium sulphate are 320 ± 2 grams per liters, and zinc sulfate is 11 ± 1 grams per liters, acid bath drop 2.5 grams per liters, 31 ± 1 ℃ of temperature.Spinning head 1.5D, the aperture ratio is 3.5, spinning pressure 16 ± 0.5kPa, 40 meters/minute of spinning speeds.
After fibre bundle solidified, through three washings, wash temperature was 75 ℃, and desulfurization temperature is 70 ℃, and concentration is 4 ± 0.1 grams per liters.And then through oiling, oil bath concentration is 4.2 ± 0.1 grams per liters, and after oiling, oven dry is sheared, classification, packing.
Testing result:
ASTME 2149
Specimen | ' 0 hour ' bacterial population | ' 24 hours ' bacterial population | Bacteriostasis rate | Sterilizing rate |
Antibacterial viscose fiber | / | 0.9×10
3 | 100% | 99.8% |
Control sample | 6.3×10
4 | 6.3×10
7 | / | / |
N
3 | | 1017 | | |
Embodiment 4
2.5D, 42 centimetres of antibacterial viscose fibers, raw material: former Bamboo vinegar solution (concentration 25 (volume) %), former cotton pulp.It is 4.7% that the design Bamboo vinegar solution accounts for fiber weight percentage.
At first Bamboo vinegar solution is carried out twice filtration, the filtering suspended material, and Bamboo vinegar solution concentration is modulated to 6% with distilled water, pH value is adjusted to about 5.5.
Cellulose pulp process: behind the common process such as blank, screening, preliminary treatment, dipping, pulverizing, experienced and yellow, when the yellow of alkali cellulose fiber, by adding dilution heat of sulfuric acid, spinning solution PH is transferred to about 9.0, in the course of dissolution when yellow finishes, the Bamboo vinegar solution modulating liquid of getting ready is added, stirring through 2 hours, making viscosity is 40 ± 1, and the first fibre is 9.4 ± 0.1%, and ripe degree is the rayon spinning stoste of 12 ± 1 milliliters of bamboo vinegar liquids
Through after the above-mentioned technology, after Bamboo vinegar solution viscose spinning solution filtered through three times, on short silk spinning machine, carry out spinning, its solidification liquid constituent is: sulfuric acid 92 ± 2 grams per liters, sodium sulphate are 310 ± 2 grams per liters, and zinc sulfate is 13 ± 1 grams per liters, acid bath drop 3 grams per liters, 40 ± 1 ℃ of temperature.Spinning head 2.0D, the aperture ratio is 4.5, spinning pressure 25 ± 0.5kPa, 50 meters/minute of spinning speeds.
After fibre bundle solidified, through three washings, wash temperature was 75 ℃, and desulfurization temperature is 70 ℃, and concentration is 4 ± 0.1 grams per liters.And then through oiling, oil bath concentration is 4.2 ± 0.1 grams per liters, and after oiling, oven dry is sheared, classification, packing.
Testing result:
ASTME 2149
Specimen | ' 0 hour ' bacterial population | ' 24 hours ' bacterial population | Bacteriostasis rate | Sterilizing rate |
Antibacterial viscose fiber | / | 1.1×10
3 | 100% | 99.8% |
Control sample | 6.3×10
4 | 6.5×10
7 | / | / |
N
3 | | 1017 | | |