CN108978038A - A kind of preparation method of the non-woven fabric with bacteriostasis - Google Patents
A kind of preparation method of the non-woven fabric with bacteriostasis Download PDFInfo
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- CN108978038A CN108978038A CN201810928653.4A CN201810928653A CN108978038A CN 108978038 A CN108978038 A CN 108978038A CN 201810928653 A CN201810928653 A CN 201810928653A CN 108978038 A CN108978038 A CN 108978038A
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- titanium dioxide
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Classifications
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/103—Agents inhibiting growth of microorganisms
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Artificial Filaments (AREA)
Abstract
The present invention relates to a kind of preparation methods of non-woven fabric with bacteriostasis, comprising the following steps: (1), prepares modified nano-titanium dioxide；(2), spinning；(3), shredding；(4), it combs；(5), lapping；The good antimicrobial effect of non-woven fabric of the invention, intensity is high, not pilling in use process, and service performance is good.
Description
Technical field
The application belongs to field of new materials, and in particular to a kind of preparation method of the non-woven fabric with bacteriostasis.
Background technique
Non-woven fabrics is made of fiber orient or random.It is called because of the appearance and certain performances with cloth
Cloth.Non-woven fabrics have it is moisture-proof, ventilative, flexible, light, not combustion-supporting, be easy decompose, it is nontoxic it is nonirritant, rich in color, price is low
The features such as honest and clean, recyclable.Such as mostly using polypropylene (pp material) pellet is raw material, through high-temperature fusion, spinneret, paving guiding principle, heat
Writing that surpasses all the others takes continuous one-step to produce.
Now, the application range of non-woven fabrics is wider, in some special dimensions, non-woven fabrics is needed to have good antibacterial work
With realizing often through addition silver ion or the modes of other bacteriostatic agents, still, inevitably will cause in use
Bacteriostatic agent is precipitated, and causes security risk.
Summary of the invention
The object of the present invention is to provide a kind of preparation methods of non-woven fabric with bacteriostasis, by technique
It improves, is obviously improved fungistatic effect and the safety of non-woven fabrics.
The invention is realized by the following technical scheme:
A kind of preparation method of the non-woven fabric with bacteriostasis, comprising the following steps:
(1), modified nano-titanium dioxide is prepared；
A, it is impregnated by nano-titanium dioxide and using the sodium hydroxide solution of 2mol/L, is stirred continuously in soaking process, then makes
Neutrality is washed to deionized water；
B, the nano-titanium dioxide after washing is impregnated using the acetic acid solution of 2mol/L, in soaking process, is shaken using ultrasonic wave
Processing 15-20min is swung, is dried at 50 DEG C, uses the silane coupling agent and nano-titanium dioxide of nano-titanium dioxide weight 0.5%
Mixing, grinding mix them thoroughly uniformly；It is first handled using acetic acid solution, the pole on nano-titanium dioxide surface can be improved
Property and absorption property promote the intensity and stability of combination using being reacted with coupling agent and subsequent chitosan.
C, take chitosan that the water of 5 times of its weight is added, it is 3-4 that glacial acetic acid is added dropwise into water and adjusts PH, and stirring makes chitosan
Dissolution, then mixes nano-titanium dioxide made of step b with chitosan solution by weight 1:4, ultrasonic vibration processing
15min, decompression filter, and drying obtains modified nano-titanium dioxide；Due to the surface modification to nano-titanium dioxide, keep its right
Also there is good facilitation in the compatibility of polypropylene and polyethylene terephthalate.
(2), spinning；
100 parts of polypropylene, 40 parts of polyethylene terephthalate drying are taken by weight, and the modification of step (1) preparation is added
1-3 parts of nano-titanium dioxide, use double screw extruder mixing, then spinning；
(3), shredding；
The spinning of step (2) is subjected to shredding mixing using opener；
(4), it combs；
Spinning after shredding is combed；
(5), lapping；
The spinning combed is subjected to lapping using lapping machine, arranges molding, using double roller calender spunbond, cooling winding.
The roll shaft temperature of the double roller calender is 145 DEG C.
After step (2) spinning, 10 parts of spinning are added in the acetum of 100 parts of 1.2mol/L, then at 25 DEG C
Constant temperature impregnates 20min, and the ethyl acrylate ethanol solution 10 that mass fraction is 5% is added in the oxygen being passed through in nitrogen discharge system
Part, it stirs evenly, is slowly added to 0.015 part of potassium peroxydisulfate, is stirred in adition process with the speed of 500r/min, be heated to 65
DEG C, it being stirred continuously, reacts 50min, be cooled to room temperature, it is 8.5 that the sodium hydroxide solution that 2mol/L is then added, which adjusts solution PH,
Then by spin filter, it is washed to neutrality, dries, obtains modified spinning.
The net completed first is handled 60min in (5) by step at 60 DEG C, then reuses double roller calender processing.
The roller surface of the double roller calender has needle-shaped burr, and burr length is 0.1mm, can promote dissipating for roller surface
Thermal effect promotes the uniformity of non-woven fabrics, and burr can be to nothing so that ambient temperature is relatively uniform in roll-in
Woven fabric has the effect of needle thorn, can form intensity higher tie point on surface when roll-in, promote the intensity of non-woven fabrics, can
Further promote the bonding strength of non-woven fabrics.
Preferably, burr diameter is not more than 0.3mm.
Beneficial effects of the present invention: non-woven fabric provided by the present application is using modified nano-titanium dioxide as antibacterial
Agent, in processing, in nano-titanium dioxide surface grafting chitosan, chitosan and titanium dioxide directly pass through hydrogen bond and coupling agent
Connection function, the intensity of connection is more preferable, can be obviously improved it is antibacterial, sterilization effect, meanwhile, in spinning, nano-silica
Change titanium due to having very big specific surface area, can be obviously improved and the combination of polypropylene and polyethylene terephthalate
Effect, promotes the intensity of spinning, and then is obviously improved the intensity of non-woven fabrics；In the application after spinning, spinning is changed
Property processing, using the micro polymerization under the action of catalyst such as chitosan of ethyl acrylate and spinning surface, make to spin
Silk between generate crosslinking, make be crosslinked node at by force being obviously improved, although in subsequent processing can by partial cross-linked fiber separation,
But at crosslinking points material strength enhancing, can also enhance the intensity of non-woven fabrics, on the other hand, due to polymerization after can generate net
Shape space structure, after shaping, intensity can be also obviously improved.
The good antimicrobial effect of non-woven fabric of the invention, intensity is high, and not pilling in use process, service performance is good, leads to
Cross the modification to titanium dioxide and the adjustment of preparation process, by polypropylene with polyethylene terephthalate is compound draws
Silk, plays apparent synergistic effect, improves the comprehensive performance of non-woven fabrics.
Specific embodiment
Embodiment 1
A kind of preparation method of the non-woven fabric with bacteriostasis, comprising the following steps:
(1), modified nano-titanium dioxide is prepared；
A, it is impregnated by nano-titanium dioxide and using the sodium hydroxide solution of 2mol/L, is stirred continuously in soaking process, then makes
Neutrality is washed to deionized water；
B, the nano-titanium dioxide after washing is impregnated using the acetic acid solution of 2mol/L, in soaking process, is shaken using ultrasonic wave
Processing 15-20min is swung, is dried at 50 DEG C, uses the silane coupling agent and nano-titanium dioxide of nano-titanium dioxide weight 0.5%
Mixing, grinding mix them thoroughly uniformly；
C, take chitosan that the water of 5 times of its weight is added, it is 3-4 that glacial acetic acid is added dropwise into water and adjusts PH, and stirring dissolves chitosan,
Then nano-titanium dioxide made of step b is mixed with chitosan solution by weight 1:4, ultrasonic vibration handles 15min, subtracts
Pressure filters, and drying obtains modified nano-titanium dioxide；
(2), spinning；
100 parts of polypropylene, 40 parts of polyethylene terephthalate drying are taken by weight, and the modification of step (1) preparation is added
2.2 parts of nano-titanium dioxide, using double screw extruder mixing, then spinning, spinning diameter is 10 microns；
(3), shredding；
The spinning of step (2) is subjected to shredding mixing using opener；
(4), it combs；
Spinning after shredding is combed；
(5), lapping；
The spinning combed is subjected to lapping using lapping machine, arranges molding, using double roller calender spunbond, cooling winding.
The roll shaft temperature of the double roller calender is 145 DEG C.
After step (2) spinning, 10 parts of spinning are added in the acetum of 100 parts of 1.2mol/L, then at 25 DEG C
Constant temperature impregnates 20min, and the ethyl acrylate ethanol solution 10 that mass fraction is 5% is added in the oxygen being passed through in nitrogen discharge system
Part, it stirs evenly, is slowly added to 0.015 part of potassium peroxydisulfate, is stirred in adition process with the speed of 500r/min, be heated to 65
DEG C, it being stirred continuously, reacts 50min, be cooled to room temperature, it is 8.5 that the sodium hydroxide solution that 2mol/L is then added, which adjusts solution PH,
Then by spin filter, it is washed to neutrality, dries, obtains modified spinning.
The net completed first is handled 60min in (5) by step at 60 DEG C, then reuses double roller calender processing.
The roller surface of the double roller calender has needle-shaped burr, and burr length is 0.1mm.
Embodiment 2
Compared with Example 1, processing is not modified to spinning after step (2).
Embodiment 3
Compared with Example 1, after the completion of lapping, isothermal holding is not carried out at 60 DEG C, directly progress hot-pressing processing.
Comparative example 1
Processing is not modified to nano-titanium dioxide, other steps are the same as embodiment 1.
Comparative example 2
When spinning, polyethylene terephthalate is not added, polyacrylic number is adjusted to 140 parts, other steps are the same as real
Apply example 1.
Comparative example 3
When spinning, polypropylene is not added, the ratio of poly- para Toluic Acid's glycol ester is adjusted to 140 parts, other steps are the same as implementation
Example 1.
Comparative example 4
Commercially available polypropylene non-woven fabric.
Comparative example 5
Commercially available polyethylene terephthalate non-woven fabrics.
Experiment 1
Verify the performance of non-woven fabrics in each embodiment and comparative example.
Non-woven fabrics prepared by each group method is tested for the property, the performance of non-woven fabrics in each group is counted, as a result such as table 1；
Table 1:
Note: in wearability test, by the non-woven fabrics doubling of 30*30cm, to the power that non-woven fabrics applies 5kg make the non-woven fabrics of doubling into
Row friction, is displaced 5cm, the number when starting pilling is the characteristic manner of wearability, i.e. number is more, and wearability is got over every time
It is good.
It is 5 × 10 by concentration when fungistatic effect is tested6The Escherichia coli of cfu/mL, being uniformly applied to multiple groups diameter is
In the culture dish containing nutrient agar of 100mm, each group non-woven fabrics is intercepted to the print that radius is 3cm, is laid in respectively above-mentioned
Each group culture dish is placed in 35 DEG C of insulating box and cultivates 72h by center in culture dish, measures clump count on each non-woven fabrics print
Amount.
When UV resistant measure of merit, 3h is irradiated into product placement under ultraviolet light, observes color change.
As shown in Table 1, the material prepared in the embodiment of the present application 1 no matter intensity, wearability, fungistatic effect or resistance to ultraviolet
Line effect will be significantly better than other schemes, and by the modification in the application to nano-titanium oxide, can play to material
The effect of strength enhancing.
Experiment 2
In order to further verify the modified influence to material property of nano-titanium oxide, different control experiments is set,
Comparative example 6
Compared with Example 1, nano-titanium dioxide modified to be impregnated in the process without using acetic acid solution.
Comparative example 7
Compared with Example 1, silane coupling agent is added without in nano-titanium dioxide treatment process.
Comparative example 8
Compared with Example 1, it in nano-titanium dioxide modified processing, is handled without using step c.
Influence of the Different treatments to non-woven fabrics performance is counted, as a result such as table 2:
Table 2:
Note: titanium dioxide stability uses metal aluminium reducing for being characterized in nonwoven cloth material the content of titanium dioxide that can dissociate
10g non-woven fabrics before test, is impregnated 2h using the sulfuric acid solution of 2mol/L, then measures titanium dioxide in solution and contain by method measurement
Amount, since content is lower, the application is characterized by relative amount, and free titanium dioxide is not detected in "-" expression, and "+" indicates detection
Free titanium dioxide, the bright free content of titanium dioxide of "+" more multilist are higher.
As shown in Table 2, after distinct methods modified nano-titanium dioxide, the performance of final non-woven cloth products generates shadow
Ring, after changing processing mode, can intensity to non-woven fabrics and wearability adversely affect, it was demonstrated that mode in the application
Treatment process is preferable.
Claims (5)
1. a kind of preparation method of the non-woven fabric with bacteriostasis, which comprises the following steps:
(1), modified nano-titanium dioxide is prepared；
A, it is impregnated by nano-titanium dioxide and using the sodium hydroxide solution of 2mol/L, is stirred continuously in soaking process, then makes
Neutrality is washed to deionized water；
B, the nano-titanium dioxide after washing is impregnated using the acetic acid solution of 2mol/L, in soaking process, is shaken using ultrasonic wave
Processing 15-20min is swung, is dried at 50 DEG C, uses the silane coupling agent and nano-titanium dioxide of nano-titanium dioxide weight 0.5%
Mixing, grinding mix them thoroughly uniformly；
C, take chitosan that the water of 5 times of its weight is added, it is 3-4 that glacial acetic acid is added dropwise into water and adjusts PH, and stirring dissolves chitosan,
Then nano-titanium dioxide made of step b is mixed with chitosan solution by weight 1:4, ultrasonic vibration handles 15min, subtracts
Pressure filters, and drying obtains modified nano-titanium dioxide；
(2), spinning；
100 parts of polypropylene, 40 parts of polyethylene terephthalate drying are taken by weight, and the modification of step (1) preparation is added
1-3 parts of nano-titanium dioxide, use double screw extruder mixing, then spinning；
(3), shredding；
The spinning of step (2) is subjected to shredding mixing using opener；
(4), it combs；
Spinning after shredding is combed；
(5), lapping；
The spinning combed is subjected to lapping using lapping machine, arranges molding, using double roller calender spunbond, cooling winding.
2. a kind of preparation method of non-woven fabric with bacteriostasis according to claim 1, it is characterised in that: institute
The roll shaft temperature for stating double roller calender is 145 DEG C.
3. a kind of preparation method of non-woven fabric with bacteriostasis according to claim 1, it is characterised in that:
After step (2) spinning, 10 parts of spinning are added in the acetum of 100 parts of 1.2mol/L, then constant temperature impregnates at 25 DEG C
10 parts of ethyl acrylate ethanol solution that mass fraction is 5%, stirring is added in 20min, the oxygen being passed through in nitrogen discharge system
Uniformly, it is slowly added to 0.015 part of potassium peroxydisulfate, is stirred in adition process with the speed of 500r/min, is heated to 65 DEG C, constantly stirs
It mixes, reacts 50min, be cooled to room temperature, it is 8.5 that the sodium hydroxide solution that 2mol/L is then added, which adjusts solution PH, then will be spun
Silk filtering, is washed to neutrality, dries, obtains modified spinning.
4. a kind of preparation method of non-woven fabric with bacteriostasis according to claim 3, it is characterised in that: step
Suddenly the net completed first is handled at 60 DEG C 60min in (5), then reuses double roller calender processing.
5. a kind of preparation method of non-woven fabric with bacteriostasis according to claim 1, it is characterised in that: institute
The roller surface of double roller calender is stated with needle-shaped burr, burr length is 0.1mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810928653.4A CN108978038B (en) | 2018-08-15 | 2018-08-15 | Preparation method of novel non-woven fabric with antibacterial effect |
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| CN201810928653.4A CN108978038B (en) | 2018-08-15 | 2018-08-15 | Preparation method of novel non-woven fabric with antibacterial effect |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110894642A (en) * | 2019-12-16 | 2020-03-20 | 中科纺织研究院（青岛）有限公司 | Chitin modified PP spunbonded non-woven fabric |
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| CN110894642A (en) * | 2019-12-16 | 2020-03-20 | 中科纺织研究院（青岛）有限公司 | Chitin modified PP spunbonded non-woven fabric |
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Effective date of registration: 20201214 Address after: Dongju Road, Zhejiang Longyou Industrial Park, Longyou County, Quzhou City, Zhejiang Province Applicant after: Zhejiang falaifu non woven fabric Co.,Ltd. Address before: No.22, Zhangcun, Juxing administrative village, Qingxi Town, Hanshan County, Ma'anshan City, Anhui Province Applicant before: MAANSHAN ZHUOFAN NEW MATERIAL TECHNOLOGY Co.,Ltd. |
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