CN103215752A - Long-acting anti-acarid, mildew-proof and anti-bacterial PP (Polypropylene) non-woven fabric and preparation method thereof - Google Patents
Long-acting anti-acarid, mildew-proof and anti-bacterial PP (Polypropylene) non-woven fabric and preparation method thereof Download PDFInfo
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- 239000004743 Polypropylene Substances 0.000 title claims abstract description 58
- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 47
- -1 Polypropylene Polymers 0.000 title claims abstract description 36
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 25
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 38
- 230000008569 process Effects 0.000 claims abstract description 29
- 238000002347 injection Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims abstract description 11
- 239000004698 Polyethylene Substances 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 229920000573 polyethylene Polymers 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 229940043810 zinc pyrithione Drugs 0.000 claims abstract description 7
- PICXIOQBANWBIZ-UHFFFAOYSA-N zinc;1-oxidopyridine-2-thione Chemical compound [Zn+2].[O-]N1C=CC=CC1=S.[O-]N1C=CC=CC1=S PICXIOQBANWBIZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000009987 spinning Methods 0.000 claims description 61
- 239000000463 material Substances 0.000 claims description 48
- 239000000835 fiber Substances 0.000 claims description 34
- 239000000155 melt Substances 0.000 claims description 28
- 230000004927 fusion Effects 0.000 claims description 21
- 238000005516 engineering process Methods 0.000 claims description 19
- 230000003115 biocidal effect Effects 0.000 claims description 17
- 238000005098 hot rolling Methods 0.000 claims description 17
- 235000021050 feed intake Nutrition 0.000 claims description 11
- 238000007731 hot pressing Methods 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 8
- 230000008030 elimination Effects 0.000 claims description 8
- 238000003379 elimination reaction Methods 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 7
- 238000009792 diffusion process Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 5
- RLLPVAHGXHCWKJ-UHFFFAOYSA-N permethrin Chemical compound CC1(C)C(C=C(Cl)Cl)C1C(=O)OCC1=CC=CC(OC=2C=CC=CC=2)=C1 RLLPVAHGXHCWKJ-UHFFFAOYSA-N 0.000 claims description 2
- 229960000490 permethrin Drugs 0.000 claims description 2
- 231100000252 nontoxic Toxicity 0.000 abstract description 5
- 230000003000 nontoxic effect Effects 0.000 abstract description 5
- 231100000344 non-irritating Toxicity 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 14
- 239000003795 chemical substances by application Substances 0.000 description 12
- 230000002421 anti-septic effect Effects 0.000 description 11
- 239000004753 textile Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 241000193830 Bacillus <bacterium> Species 0.000 description 2
- 241000191967 Staphylococcus aureus Species 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 2
- 231100000021 irritant Toxicity 0.000 description 2
- 239000002085 irritant Substances 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
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- 239000011347 resin Substances 0.000 description 2
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- 206010040880 Skin irritation Diseases 0.000 description 1
- 231100000460 acute oral toxicity Toxicity 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
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Abstract
The invention discloses a long-acting anti-acarid, mildew-proof and anti-bacterial PP (Polypropylene) non-woven fabric, which is prepared by carrying out bended spinningon functional master batch and PP; and according to the percentage by weight of the non-woven fabric, the adding amount of the PP is 95-99.9 percent by weight, and the injection quantity of the functional master batch is 0.1-5 percent by weight. The formula of the functional master batch comprises the following components in percentage by weight: 95.50-97.15 percent of PP, 0.25-0.40 percent of zinc pyrithione and 2.60-4.10 percent of low molecular weight polyethylene wax. The preparation method of the non-woven fabric comprises the following steps of mixing the functional master batch by taking the PP as a raw material; and preparing the long-acting anti-acarid, mildew-proof and anti-bacterial PP non-woven fabric through a spunbonding process or a spunbonding-melt spinning-spunbonding process. The long-acting anti-acarid, mildew-proof and anti-bacterial PP non-woven fabric has obvious and long-acting anti-acarid, mildew-proof and anti-bacterial effects, and is non-toxic to the human body and non-irritating to the skin.
Description
Technical field
The invention belongs to the technical field that family is spun, specifically, is a kind of long-acting anti-mite, mildew-resistant, antibiotic PP nonwoven fabric and preparation method thereof.
Background technology
At present, in daily life and work, the method for anti-mite antimildew and antibacterial has a variety of, comprises environment control, spraying agent and function of use textiles etc.
Environment control mainly contains and keeps indoor cleaning and circulation of air, reduces dust, cleaned at regular intervals household textile and air-conditioning equipment etc.; Direct sprinkling chemical agent operates easier, but effect can't be lasting, and frequent use can produce harmful effect to health; Functional textile is then because its cost is low, efficient is high comparatively universal.
Different according to production technology with demand, produce nonwoven fabric and mainly contain following several method at present with anti-mite or antimildew and antibacterial performance:
1, co-blended spinning
The co-blended spinning method is the main means of development functionality fiber.It is with auxiliary agent and fibrous matrix mixed with resin such as anti-mite agent or antiseptic and dispersants, and process and operations such as matrix resin melting mixing, spinning, stretching, coiling make anti-mite or antimildew and antibacterial nonwoven fabric.Be characterized in that anti-mite agent, antiseptic dispersion effect are better, anti-mite or antibacterial effect are lasting, and production technology is simple, but it is strict to anti-mite agent, antiseptic.This method requires anti-mite agent, antiseptic good heat resistance, does not decompose under spinning temperature, keeps its stability, and next requires anti-mite agent, antiseptic particle diameter enough little, with polymer favorable compatibility and dispersiveness is arranged.
Use the co-blended spinning technology and prepare antibacterial nonwoven cloth made, mainly contain following method at present:
(1) master batch method
The anti-mite agent or the antiseptic master batch that prepare high-load earlier are then with master batch and polymer chips co-blended spinning.
(2) modification microtomy
Add anti-mite agent or antiseptic when polymerization, by optimizing polymerization process condition, the polymer-modified section of synthetic antimicrobial obtains anti-mite or antimildew and antibacterial nonwoven fabric through slice spinning.
2, back arrangement
Through spray, pad or finishing process such as coating, along with the carrying out of baking operation, anti-mite agent, antiseptic do not exist only in fiber surface, partly are dissolved into below the fiber top layer yet, form shallow-layer and contain, and obtain anti-mite or antibacterial nonwoven cloth made.Be characterized in easy to process, the anti-mite agent that can select, antiseptic wide range, but anti-mite, antibiotic poor durability, anti-mite, antibacterial effect constantly reduce along with the increase of washing times.In addition, anti-mite agent, the easy stripping fiber surface of antiseptic are so have strict demand to the security of anti-mite agent, antiseptic.
Therefore, need a kind of and product that can long-acting anti-mite antimildew and antibacterial nontoxic, to satisfy the daily anti-mite antimildew and antibacterial demand of people to human body.
Summary of the invention
The objective of the invention is to, a kind of long-acting anti-mite, mildew-resistant, antibiotic PP nonwoven fabric are provided.
Another object of the present invention is to, the preparation method of a kind of long-acting anti-mite, mildew-resistant, antibiotic PP nonwoven fabric is provided.The present invention is applicable to household textile, house ornament, hygiene medical treatment material, military uniform and auxiliary material field thereof.
The objective of the invention is to, a kind of functional agglomerate with anti-mite, mildew-resistant, antibacterial action is provided.
The technical problem that will solve required for the present invention can be achieved through the following technical solutions:
As a first aspect of the present invention, a kind of long-acting anti-mite, mildew-resistant, antibiotic PP nonwoven fabric, it is characterized in that, make with functional master batch and polypropylene PP co-blended spinning, according to the mass percent meter that accounts for nonwoven fabric, described polyacrylic addition is 95-99.9% (wt), and the injection volume of described functional master batch is 0.1-5% (wt);
Wherein, described functional master batch has anti-mite, mildew-resistant, antibiotic effect, the prescription of described functional master batch, according to the mass percent meter that accounts for master batch:
Polypropylene 95.50～97.15% (wt),
Zinc Pyrithione 0.25～0.40% (wt),
Low molecular weight polyethylene wax 2.60～4.10% (wt).
Wherein, the molecular weight of described low molecular weight polyethylene wax is 1500-5000.
As a second aspect of the present invention, the preparation method of a kind of long-acting anti-mite, mildew-resistant, antibiotic PP nonwoven fabric, it is characterized in that, with polypropylene PP is raw material, sneak into functional master batch, described functional master batch has anti-mite, mildew-resistant, antibiotic effect, through spunbond technology, obtains long-acting Vermins-proof and mosquito-driving PP nonwoven fabric;
Described spunbond technology comprises: " feeding intake → fusion → filtration → spinning → cooling → drawing-off → lapping → fixed → reel " step.
Described spunbond technology may further comprise the steps:
1.1, feed intake: with material according to prescription: polypropylene addition 95-99.9% (wt), the metering proportion of functional master batch injection volume 0.1-5% (wt), send pp material and functional master batch to screw extruder by suction system, injector, carry out preliminary mixing;
1.2 fusion: material enters into the screw channel of screw extruder from charge door, because material is pushed ahead in the rotation of screw rod; Material is in the process of advancing, and temperature raises and fusion gradually, makes and fully mixes between the material;
Wherein, in the step 1.2, it is as follows that the 1-6 district of described screw extruder respectively distinguishes temperature control:
1 district: 150-200 ℃; 2 districts: 180-230 ℃;
3 districts: 180-250 ℃; 4 districts: 200-250 ℃;
5 districts: 220-270 ℃; 6 districts: 220-270 ℃.
1.3, filter: will be unfavorable for the impurity elimination of spinning in the melt by fondant filter;
1.4, spinning: with measuring pump melt is measured accurately, and the operating pressure that makes melt produce 3-7MPa is pushed ahead and is entered spinning manifold; Spinning manifold distributes melt, and melt is assigned on the whole fabric width as far as possible equably; Filament spinning component plays diffusion, further filters, distributes melt, and the holding screen pack makes the melt of fluidised form be extruded into silk through spinnerets;
Wherein, in the step 1.4, described spinning temperature is 150-280 ℃.
1.5, cooling: use the side-blown bellows that the melt thread of high temperature is cooled off stretching;
Wherein, in the step 1.5, the cold wind rotation speed of fan of described side-blown bellows is 600-1200rpm.
1.6, drawing-off: the high velocity air that utilizes blower fan to produce is realized the drawing-off to the melt thread, makes the melt thread become height-oriented fiber;
1.7, lapping: be subjected to down the suction of exhausting, fiber is randomly dispersed on the lace curtaining, and the precompressed typing by the hot pressing roller forms fiber web; Lace curtaining is delivered to hot-rolling mill with fiber web and is further reinforced;
Wherein, in the step 1.7, described exhausting rotation speed of fan down is 600-1300rpm, and described hot pressing roll temperature is 60-130 ℃.
1.8, fixed: fiber web is become nonwoven fabric that certain intensity arranged by fixed typing by the hot-rolling mill that delivers into of lace curtaining under the effect of hot-rolling mill high temperature, high pressure;
1.9, reel: with up-coiler in type nonwoven fabric is carried out tentering, fixed length, cuts, reels.
As a third aspect of the present invention, the preparation method of a kind of long-acting anti-mite, mildew-resistant, antibiotic PP nonwoven fabric is a raw material with polypropylene PP, sneaks into functional master batch sample, through spunbond-melt and spray-spunbond technology, obtain long-acting Vermins-proof and mosquito-driving PP nonwoven fabric.
Described spunbond-melt and spray-spunbond technology is illustrated in fig. 1 shown below.
Described spunbond layer technology is carried out spinning by following steps:
1.1, feed intake: with material according to prescription: polypropylene addition 95-99.9% (wt), the metering proportion of functional master batch injection volume 0.1-5% (wt), send pp material and functional master batch to screw extruder by suction system, injector, carry out preliminary mixing;
1.2 fusion: material enters into the screw channel of screw extruder from charge door, because material is pushed ahead in the rotation of screw rod; Material is in the process of advancing, and temperature raises and fusion gradually, makes and fully mixes between the material;
Wherein, in the step 1.2, it is as follows that the 1-6 district of described screw extruder respectively distinguishes temperature control:
1 district: 150-200 ℃; 2 districts: 180-230 ℃;
3 districts: 180-250 ℃; 4 districts: 200-250 ℃;
5 districts: 220-270 ℃; 6 districts: 220-270 ℃.
1.3, filter: will be unfavorable for the impurity elimination of spinning in the melt by fondant filter;
1.4, spinning: with measuring pump melt is measured accurately, and the operating pressure that makes melt produce 3-7MPa is pushed ahead and is entered spinning manifold; Spinning manifold distributes melt, and melt is assigned on the whole fabric width as far as possible equably; Filament spinning component plays diffusion, further filters, distributes melt, and the holding screen pack makes the melt of fluidised form be extruded into silk through spinnerets;
Wherein, in the step 1.4, the spinning temperature of spunbond layer I and spunbond layer II is 150-280 ℃.
1.5, cooling: use the side-blown bellows that the melt thread of high temperature is cooled off stretching;
Wherein, in the step 1.5, the cold wind rotation speed of fan of the side-blown bellows of spunbond layer I and spunbond layer II is 150-280 ℃.
1.6, drawing-off: the high velocity air that utilizes blower fan to produce is realized the drawing-off to the melt thread, makes the melt thread become height-oriented fiber, and is subjected to down the suction of exhausting, is layered on the lace curtaining;
Described meltblown layer technology is carried out spinning by following steps:
2.1, feed intake: with material according to prescription: polypropylene addition 95-99.9% (wt), the metering proportion of functional master batch injection volume 0.1-5% (wt), by suction system, injector, send pp material and functional master batch to screw extruder, carry out preliminary mixing;
2.2, fusion: material enters into the screw channel of screw extruder from charge door, because material is pushed ahead in the rotation of screw rod; Material is in the process of advancing, and temperature raises and fusion gradually, makes and fully mixes between the material;
Wherein, in the step 2.2, it is as follows that the 1-6 district of described screw extruder respectively distinguishes temperature control:
1 district: 150-220 ℃; 2 districts: 200-280 ℃;
3 districts: 200-280 ℃; 4 districts: 200-300 ℃;
5 districts: 200-320 ℃; 6 districts: 200-320 ℃.
2.3, filter: will be unfavorable for the impurity elimination of spinning in the melt by fondant filter;
2.4, spinning: with measuring pump melt is measured accurately, and the operating pressure that makes melt produce 1-4MPa is pushed ahead and is entered meltblown beam; Meltblown beam is distributed melt, and the polymer thread that utilizes high-speed air that the die head spinneret orifice is extruded carries out drawing-off, is layered on the ground floor spun-bonded fibre net surface on the lace curtaining;
Wherein, in the step 2.4, temperature control in described meltblown beam 1-16 district is as follows:
1 district: 200-320 ℃; 2 districts: 200-320 ℃;
3 districts: 200-320 ℃; 4 districts: 200-320 ℃;
5 districts: 200-320 ℃; 6 districts: 200-320 ℃;
7 districts: 200-320 ℃; 8 districts: 200-320 ℃;
9 districts: 200-320 ℃; 10 districts: 200-320 ℃;
11 districts: 200-320 ℃; 12 districts: 200-320 ℃;
13 districts: 200-320 ℃; 14 districts: 200-320 ℃;
15 districts: 200-320 ℃; 16 districts: 200-320 ℃;
Hot blast air quantity: 60-90%.
3.1, become net: under exhausting suction function down, the attenuating blast of each spinning system is taken away, and fiber web is then stayed on the lace curtaining of lapper, and lace curtaining is delivered to hot-rolling mill with fiber web and further reinforced;
Wherein, in the step 3.1, the following exhausting rotation speed of fan of spunbond layer I: 1000-1500rpm.
Wherein, in the step 3.1, the following exhausting rotation speed of fan of meltblown layer: 1800-2400rpm.
Wherein, in the step 3.1, the following exhausting rotation speed of fan of spunbond layer II: 1800-2400rpm.
Wherein, in the step 3.1, the temperature of spunbond layer I and spunbond layer II hot pressing roller is 60-130 ℃.
3.2, fixed: fiber web is become the nonwoven fabric that certain intensity is arranged by fixed typing under the effect of hot-rolling mill high temperature, high pressure;
Wherein, in the step 3.2, roller temperature is 150-200 ℃.
3.3, reel: by up-coiler in type nonwoven fabric is carried out tentering, fixed length, cuts, reels.
As a fourth aspect of the present invention, a kind of functional agglomerate with anti-mite, mildew-resistant, antibacterial action is characterized in that, according to the mass percent meter that accounts for master batch, the prescription of described Vermins-proof and mosquito-driving master batch is as follows:
Polypropylene 96.00-97.35% (wt),
Permethrin 0.25-0.35% (wt),
Low molecular weight polyethylene wax 2.40-3.65% (wt).
Beneficial effect of the present invention:
1, be raw material with polypropylene PP, sneak into functional master batch, perhaps spunbond-as to melt and spray-spunbond technology through spunbond technology, obtain long-acting anti-mite, mildew-resistant, antibiotic PP nonwoven fabric, making self just has anti-mite, mildew-resistant, antibacterial functions in the polypropylene fibre.
2, realization is nontoxic to human body, to the skin nonirritant.In the preparation master batch, only placed Zinc Pyrithione 0.25～0.40% (wt), this nonwoven fabric belongs to nontoxic level, nonirritant after testing.
3, anti-mite, mildew-resistant, antibacterial effect are remarkable, long-acting.
Description of drawings
Fig. 1 is a process chart of the present invention.
The specific embodiment
Below in conjunction with specific embodiment, the invention will be further described.Should be understood that following examples only are used to the present invention is described but not are used to limit scope of the present invention.
The experimental technique of unreceipted actual conditions in the following example, usually according to normal condition, or the condition that manufacturer provides is carried out.
Raw material:
(English name: Polypropylene is called for short: PP, molecular formula :-[CH (CH polypropylene
3)-CH
2]-
n)
Zinc Pyrithione (English name: Zinc Pyrithione; ZPT, molecular formula: C
10H
8N
2O
2S
2Zn)
Low molecular weight polyethylene wax (English name: Low Molecular Weight Polyethylene Wax, molecular formula :-[CH
2-CH
2]-
n)
The preparation of embodiment 1 anti-mite, mildew-resistant, antibacterial matrices
With the carrier of polypropylene as master batch, press the prescription shown in the table 1, prepare anti-mite, mildew-resistant, antibacterial matrices:
The anti-mite of table 1, mildew-resistant, antibacterial matrices prescription
| Sample | Polypropylene | Zinc Pyrithione | Low molecular weight polyethylene wax |
| 1 | 97.00％ | 0.25％ | 2.75％ |
| 2 | 96.50％ | 0.28％ | 3.22％ |
| 3 | 96.00％ | 0.32％ | 3.68％ |
| 4 | 95.80％ | 0.35％ | 3.85％ |
The preparation of embodiment 2 long-acting anti-mites, mildew-resistant, antibiotic PP spun-bonded non-woven fabrics
The functional master batch sample that embodiment 1 obtains, make nonwoven fabric through following (spunbond) step:
Feed intake → fusion → filtration → spinning → cooling → drawing-off → lapping → fixed → reel
1, feed intake:
Raw material: polypropylene, addition 95-99.9% (wt)
The functional master batch that obtains among master batch: the embodiment 1, injection volume 0.1-5% (wt)
Equipment: suction system, injector
Process prescription: by suction system and injector,, send the functional master batch that pp material and embodiment 1 obtain to screw extruder, carry out preliminary mixing according to metering proportion accurately.
2, fusion:
Equipment: screw extruder
It is as follows that extruder 1-6 respectively distinguishes in the district temperature control:
1 district: 150-200 ℃; 2 districts: 180-230 ℃;
3 districts: 180-250 ℃; 4 districts: 200-250 ℃;
5 districts: 220-270 ℃; 6 districts: 220-270 ℃.
Process prescription: material enters into the screw channel of screw extruder from charge door, because material is pushed ahead in the rotation of screw rod.Material is in the process of advancing, and temperature raises and fusion gradually, makes and fully mixes between the material.
3, filter:
Equipment: fondant filter
Process prescription: will be unfavorable for the impurity elimination of spinning in the melt.
4, spinning:
Equipment: measuring pump, spinning manifold, filament spinning component, monomer aspirator
Spinning temperature: 150-280 ℃.
Process prescription: measuring pump measures accurately to melt, and the operating pressure that makes melt produce 3-7MPa is pushed ahead and entered spinning manifold; Spinning manifold distributes melt, and melt is assigned on the whole fabric width as far as possible equably; Filament spinning component plays diffusion, further filters, distributes melt, and the holding screen pack makes the melt of fluidised form be extruded into silk through spinnerets.
5, cooling
Equipment: side-blown bellows
Cold wind rotation speed of fan: 600-1200rpm
Process prescription: the melt thread to high temperature cools off stretching.
6, drawing-off:
Equipment: drawing-off path, following exhausting system
Process prescription: the high velocity air that produces with blower fan is realized the drawing-off to the melt thread, makes the melt thread become height-oriented fiber.
7, lapping:
Equipment: following exhausting system, hot pressing roller, lapper, lace curtaining
Hot pressing roll temperature: 60-130 ℃.
Following exhausting rotation speed of fan: 600-1300rpm.
Process prescription: be subjected to down the suction of exhausting, fiber is randomly dispersed on the lace curtaining, by the precompressed typing formation fiber web of hot pressing roller; Lace curtaining is delivered to hot-rolling mill with fiber web and is further reinforced.
8, fixed:
Equipment: hot-rolling mill
Roller temperature: 110-200 ℃
Process prescription: fiber web is become nonwoven fabric that certain intensity arranged by fixed typing by the hot-rolling mill that delivers into of lace curtaining under the effect of hot-rolling mill high temperature, high pressure.
9, reel:
Equipment: up-coiler
Process prescription: in type nonwoven fabric is carried out tentering, fixed length, cuts, reels.
Embodiment 3 long-acting anti-mites, mildew-resistant, antibiotic PP are spunbond-melt and spray-preparation of spun-bonded non-woven fabrics
The functional master batch sample that embodiment 1 obtains, make nonwoven fabric through following (spunbond-as to melt and spray-spunbond) step:
Spunbond layer spinning step according to embodiment 2: feed intake → fusion → filtration → spinning → cooling → drawing-off is carried out, and below is technological parameter, referring to table 2.
Table 2 technological parameter
The spinning step of meltblown layer:
Feed intake → fusion → filtration → spinning
1, feed intake:
Raw material: polypropylene, addition 95-99.9% (wt)
The functional master batch that obtains among master batch: the embodiment 1, injection volume 0.1-5% (wt)
Equipment: suction system, injector
Process prescription: by suction system and injector,, send the functional master batch that pp material and embodiment 1 obtain to screw extruder, carry out preliminary mixing according to metering proportion accurately.
2, fusion:
Equipment: screw extruder
It is as follows that extruder 1-6 respectively distinguishes in the district temperature control:
1 district: 150-220 ℃; 2 districts: 200-280 ℃;
3 districts: 200-280 ℃; 4 districts: 200-300 ℃;
5 districts: 200-320 ℃; 6 districts: 200-320 ℃.
Process prescription: material enters into the screw channel of screw extruder from charge door, because material is pushed ahead in the rotation of screw rod.Material is in the process of advancing, and temperature raises and fusion gradually, makes and fully mixes between the material.
3, filter:
Equipment: fondant filter
Process prescription: will be unfavorable for the impurity elimination of spinning in the melt.
4, spinning
Equipment: measuring pump, meltblown beam
The temperature control of meltblown beam 1-16 district is as follows:
1 district: 200-320 ℃; 2 districts: 200-320 ℃;
3 districts: 200-320 ℃; 4 districts: 200-320 ℃;
5 districts: 200-320 ℃; 6 districts: 200-320 ℃;
7 districts: 200-320 ℃; 8 districts: 200-320 ℃;
9 districts: 200-320 ℃; 10 districts: 200-320 ℃;
11 districts: 200-320 ℃; 12 districts: 200-320 ℃;
13 districts: 200-320 ℃; 14 districts: 200-320 ℃;
15 districts: 200-320 ℃; 16 districts: 200-320 ℃;
Hot blast air quantity: 60-90%
Process prescription: measuring pump measures accurately to melt, and the operating pressure that makes melt produce 1-4MPa is pushed ahead and entered meltblown beam; Meltblown beam is distributed melt, and the polymer thread that utilizes high-speed air that the die head spinneret orifice is extruded carries out drawing-off, is layered on the ground floor spun-bonded fibre net surface on the lace curtaining.
Spunbond layer-meltblown layer-three layers of composite steps of spunbond layer:
1, becomes net
Equipment: following exhausting system, hot pressing roller, lapper, lace curtaining
The exhausting rotation speed of fan is 1000-1500rpm under the spunbond layer I;
The exhausting rotating speed is 1800-2400rpm under the meltblown layer;
The exhausting rotation speed of fan is 1800-2400rpm under the spunbond layer II;
The temperature of spunbond layer I and spunbond layer II hot pressing roller is 60-130 ℃.
Process prescription: under following exhausting suction function, the attenuating blast of each spinning system is taken away, and fiber web is then stayed on the lace curtaining of lapper, and lace curtaining is delivered to hot-rolling mill with fiber web and further reinforced;
2, fixed
Equipment: hot-rolling mill
Roller temperature: 150-200 ℃
Process prescription: fiber web is become the nonwoven fabric that certain intensity is arranged by fixed typing under the effect of hot-rolling mill high temperature, high pressure;
3, reel:
Equipment: up-coiler
Process prescription: in type nonwoven fabric is carried out tentering, fixed length, cuts, reels.
Embodiment 4 per os toxicity and irritant tests
The nonwoven fabric sample that the method for embodiment 2 and embodiment 3 is obtained is served sea market disease prevention and control center (address: No. 1380, the Shanxi road in the Shanghai City) and is carried out acute oral toxicity test, acute skin irritation test and oral mucosa irritant test, and conclusion is as follows:
1, the sample leaching liquor is to the LD of male and female small white mouse acute oral
50All, belong to nontoxic level greater than 20000mg/kg;
2, sample skin irritatin test score value is 0, by the skin irritatin intensity evaluation, belongs to nonirritant;
3, sample does not have the oral mucosa excitant.
Embodiment 5 anti-mite tests
The nonwoven fabric sample that the method for embodiment 2 and embodiment 3 is obtained send universal standard technological service Shanghai Co., Ltd (SGS Shanghai branch company, address: No. 889 No. 3 building 1 floor of YiShan Road,ShangHai) carry out anti-mite test, conclusion such as table 3:
Table 3 result of the test
| Microbe species | Expeling rate % |
| The dust mite | 91.60 |
As seen from Table 3, after testing to dust mite expeling rate＞91.60%.
Embodiment 6 antibacterial tests
The nonwoven fabric sample that the method for embodiment 2 and embodiment 3 is obtained send universal standard technological service Shanghai Co., Ltd (SGS Shanghai branch company, the address: No. 889 No. 3 building 1 floor of YiShan Road,ShangHai) carry out antibacterial tests, conclusion is as follows:
Table 4 result of the test
| Microbe species | Slip % |
| Bacillus canalis capsulatus | ＞99.9 |
| Staphylococcus aureus | ＞99.9 |
As seen from Table 4, anti-after testing bacillus canalis capsulatus, staphylococcus aureus is all＞99.9%.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (10)
1. a long-acting anti-mite, mildew-resistant, antibiotic PP nonwoven fabric, it is characterized in that, make with functional master batch and polypropylene PP co-blended spinning, according to the mass percent meter that accounts for nonwoven fabric, described polyacrylic addition is 95-99.9% (wt), and the injection volume of described functional master batch is 0.1-5% (wt);
Wherein, according to the mass percent meter that accounts for master batch, the prescription of described functional master batch:
Polypropylene 95.50～97.15% (wt),
Zinc Pyrithione 0.25～0.40% (wt),
Low molecular weight polyethylene wax 2.60～4.10% (wt).
2. nonwoven fabric according to claim 1 is characterized in that, the molecular weight of described low molecular weight polyethylene wax is 1500-5000.
3. the preparation method of a long-acting anti-mite as claimed in claim 1, mildew-resistant, antibiotic PP nonwoven fabric is characterized in that, is raw material with polypropylene PP, sneaks into functional master batch, through spunbond technology, obtains long-acting Vermins-proof and mosquito-driving PP nonwoven fabric;
Described spunbond technology comprises: " feeding intake → fusion → filtration → spinning → cooling → drawing-off → lapping → fixed → reel " step.
4. preparation method according to claim 3 is characterized in that, described spunbond technology may further comprise the steps:
1.1, feed intake: with material according to prescription: polypropylene addition 95-99.9% (wt), the metering proportion of functional master batch injection volume 0.1-5% (wt), send pp material and functional master batch to screw extruder by suction system, injector, carry out preliminary mixing;
1.2, fusion: material enters into the screw channel of screw extruder from charge door, because material is pushed ahead in the rotation of screw rod; Material is in the process of advancing, and temperature raises and fusion gradually, makes and fully mixes between the material;
1.3, filter: will be unfavorable for the impurity elimination of spinning in the melt by fondant filter;
1.4, spinning: with measuring pump melt is measured accurately, and the operating pressure that makes melt produce 3-7MPa is pushed ahead and is entered spinning manifold; Spinning manifold distributes melt, and melt is assigned on the whole fabric width as far as possible equably; Filament spinning component plays diffusion, further filters, distributes melt, and the holding screen pack makes the melt of fluidised form be extruded into silk through spinnerets;
1.5, cooling: use the side-blown bellows that the melt thread of high temperature is cooled off stretching;
1.6, drawing-off: the high velocity air that utilizes blower fan to produce is realized the drawing-off to the melt thread, makes the melt thread become height-oriented fiber;
1.7, lapping: be subjected to down the suction of exhausting, fiber is randomly dispersed on the lace curtaining, and the precompressed typing by the hot pressing roller forms fiber web; Lace curtaining is delivered to hot-rolling mill with fiber web and is further reinforced;
1.8, fixed: fiber web is become nonwoven fabric that certain intensity arranged by fixed typing by the hot-rolling mill that delivers into of lace curtaining under the effect of hot-rolling mill high temperature, high pressure;
1.9, reel: with up-coiler in type nonwoven fabric is carried out tentering, fixed length, cuts, reels.
5. preparation method according to claim 4 is characterized in that, in the step 1.2, it is as follows that the 1-6 district of described screw extruder respectively distinguishes temperature control:
1 district: 150-200 ℃; 2 districts: 180-230 ℃;
3 districts: 180-250 ℃; 4 districts: 200-250 ℃;
5 districts: 220-270 ℃; 6 districts: 220-270 ℃.
6. preparation method according to claim 4 is characterized in that, in the step 1.4, described spinning temperature is 150-280 ℃,
In the step 1.7, described hot pressing roll temperature is 60-130 ℃,
In the step 1.8, described roller temperature is 110-200 ℃.
7. preparation method according to claim 4 is characterized in that, in the step 1.5, the cold wind rotation speed of fan of described side-blown bellows is 600-1200rpm, and in the step 1.7, described exhausting rotation speed of fan down is 600-1300rpm.
8. the preparation method of a long-acting according to claim 1 anti-mite, mildew-resistant, antibiotic PP nonwoven fabric is a raw material with polypropylene PP, sneaks into functional master batch sample, through spunbond-melt and spray-spunbond technology, obtain long-acting anti-mite, mildew-resistant, antibiotic PP nonwoven fabric.
9. preparation method according to claim 8 is characterized in that, described spunbond layer technology is carried out spinning by following steps:
1.1, feed intake: with material according to prescription: polypropylene addition 95-99.9% (wt), the metering proportion of functional master batch injection volume 0.1-5% (wt), send pp material and functional master batch to screw extruder by suction system, injector, carry out preliminary mixing;
1.2 fusion: material enters into the screw channel of screw extruder from charge door, because material is pushed ahead in the rotation of screw rod; Material is in the process of advancing, and temperature raises and fusion gradually, makes and fully mixes between the material;
1.3, filter: will be unfavorable for the impurity elimination of spinning in the melt by fondant filter;
1.4, spinning: with measuring pump melt is measured accurately, and the operating pressure that makes melt produce 3-7MPa is pushed ahead and is entered spinning manifold; Spinning manifold distributes melt, and melt is assigned on the whole fabric width as far as possible equably; Filament spinning component plays diffusion, further filters, distributes melt, and the holding screen pack makes the melt of fluidised form be extruded into silk through spinnerets;
1.5, cooling: use the side-blown bellows that the melt thread of high temperature is cooled off stretching;
1.6, drawing-off: the high velocity air that utilizes blower fan to produce is realized the drawing-off to the melt thread, makes the melt thread become height-oriented fiber, and is subjected to down the suction of exhausting, is layered on the lace curtaining;
Described meltblown layer technology is carried out spinning by following steps:
2.1, feed intake: with material according to prescription: polypropylene addition 95-99.9% (wt), the metering proportion of functional master batch injection volume 0.1-5% (wt), by suction system, injector, send pp material and functional master batch to screw extruder, carry out preliminary mixing;
2.2, fusion: material enters into the screw channel of screw extruder from charge door, because material is pushed ahead in the rotation of screw rod; Material is in the process of advancing, and temperature raises and fusion gradually, makes and fully mixes between the material;
2.3, filter: will be unfavorable for the impurity elimination of spinning in the melt by fondant filter;
2.4, spinning: with measuring pump melt is measured accurately, and the operating pressure that makes melt produce 1-4MPa is pushed ahead and is entered meltblown beam; Meltblown beam is distributed melt, and the polymer thread that utilizes high-speed air that the die head spinneret orifice is extruded carries out drawing-off, is layered on the ground floor spun-bonded fibre net surface on the lace curtaining;
3.1, become net: under exhausting suction function down, the attenuating blast of each spinning system is taken away, and fiber web is then stayed on the lace curtaining of lapper, and lace curtaining is delivered to hot-rolling mill with fiber web and further reinforced;
3.2, fixed: fiber web is become the nonwoven fabric that certain intensity is arranged by fixed typing under the effect of hot-rolling mill high temperature, high pressure;
3.3, reel: by up-coiler in type nonwoven fabric is carried out tentering, fixed length, cuts, reels;
In the step 1.2, it is as follows that the 1-6 district of described screw extruder respectively distinguishes temperature control:
1 district: 150-200 ℃; 2 districts: 180-230 ℃;
3 districts: 180-250 ℃; 4 districts: 200-250 ℃;
5 districts: 220-270 ℃; 6 districts: 220-270 ℃
In the step 1.4, the spinning temperature of spunbond layer I and spunbond layer II is 150-280 ℃
In the step 1.5, the cold wind rotation speed of fan of the side-blown bellows of spunbond layer I and spunbond layer II is 800-1500rpm
In the step 2.2, it is as follows that the 1-6 district of described screw extruder respectively distinguishes temperature control:
1 district: 150-220 ℃; 2 districts: 200-280 ℃;
3 districts: 200-280 ℃; 4 districts: 200-300 ℃;
5 districts: 200-320 ℃; 6 districts: 200-320 ℃
In the step 2.4, temperature control in described meltblown beam 1-16 district is as follows:
1 district: 200-320 ℃; 2 districts: 200-320 ℃;
3 districts: 200-320 ℃; 4 districts: 200-320 ℃;
5 districts: 200-320 ℃; 6 districts: 200-320 ℃;
7 districts: 200-320 ℃; 8 districts: 200-320 ℃;
9 districts: 200-320 ℃; 10 districts: 200-320 ℃;
11 districts: 200-320 ℃; 12 districts: 200-320 ℃;
13 districts: 200-320 ℃; 14 districts: 200-320 ℃;
15 districts: 200-320 ℃; 16 districts: 200-320 ℃;
Hot blast air quantity: 60-90%
In the step 3.1, the following exhausting rotation speed of fan of described spunbond layer I is 1000-1500rpm; The following exhausting rotation speed of fan of spunbond layer II is 1800-2400rpm; The exhausting rotating speed is 1800-2400rpm under the meltblown layer; The temperature of spunbond layer I and spunbond layer II hot pressing roller is 60-130 ℃
In the step 3.2, roller temperature is 150-200 ℃.
10. the functional agglomerate with anti-mite, mildew-resistant, antibacterial action is characterized in that, according to the mass percent meter that accounts for master batch, the prescription of described Vermins-proof and mosquito-driving master batch is as follows:
Polypropylene 96.00-97.35% (wt),
Permethrin 0.25-0.35% (wt),
Low molecular weight polyethylene wax 2.40-3.65% (wt).
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