CN104878607A - Method for tidying fabrics by mosquito repelling microcapsules - Google Patents
Method for tidying fabrics by mosquito repelling microcapsules Download PDFInfo
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- CN104878607A CN104878607A CN201510301155.3A CN201510301155A CN104878607A CN 104878607 A CN104878607 A CN 104878607A CN 201510301155 A CN201510301155 A CN 201510301155A CN 104878607 A CN104878607 A CN 104878607A
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- polypropylene
- spinning
- mosquito repellent
- microcapsules
- maleic anhydride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/04—Anhydrides, e.g. cyclic anhydrides
- C08F222/06—Maleic anhydride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
- C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/04—Melting filament-forming substances
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D13/00—Complete machines for producing artificial threads
-
- 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
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/30—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising olefins as the major constituent
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/244—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons
- D06M15/256—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons containing fluorine
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
- D06M23/12—Processes in which the treating agent is incorporated in microcapsules
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Artificial Filaments (AREA)
Abstract
The invention belongs to the field of textile after finishing, and particularly relates to a method applicable to fabric durability mosquito repelling finishing. According to the method, firstly, polypropylene raw materials grafted with maleic anhydride are prepared; then, the raw materials are prepared into spun yarns through a melt spinning process; the mosquito repelling microcapsules are tidied onto the spun yarns; finally, a polytetrafluoroethylene coating with a micropore structure coats tidied polypropylene fiber spun yarns; the polypropylene fiber tidied and modified by the mosquito repelling microcapsules is obtained; the tidied and modified polypropylene fiber is woven into the fabric. A tetrafluoroethylene protecting layer coats the outside tidied polypropylene spun yarns for tightly wrapping and clamping the microcapsules, and the falling of the microcapsules can be more effectively prevented.
Description
Technical field
The invention belongs to after-finishing of textile products field, especially relate to a kind of method being applicable to fabric durable mosquito repellent and arranging.
Background technology
Summer is mosquito multiple season, and after bite by mosquitos, pain is itched hard to bear, and mosquito is stung by thorn and sucks blood and spread disease, even if without infectivity, but also forms serious harassing and wrecking to people, also easily causes skin disease.
Mosquito repellent occupies main status in medical insect control.Long-Time Service mosquito-repellent incense mosquito repellent, easily causes cough, the bad reaction such as uncomfortable in chest, especially for children, allergic constitution person, asthma patient; There are the repellant such as Metadelphene (DEET), mosquitofugal oil (DMP) or the citronellal etc. that mainly with the addition of chemical synthesis in the cosmetics of repelling effect, spread upon on skin, form diaphragm, make mosquito dare not be close.But the repellant of this interpolation chemical composition may cause allergic.
Also have in recent years and the research of plant extracts as human body mosquito-repellent is reported, such as, utilize lemon scented gum extract, citronella oil, geranium oil, lavender oil, rosemary oil, caryophyllus oil, Chinese juniper wet goods, but this is that the mosquito-repellent of main component is short for action time, generally at 1 ~ 2 hour with plant volatile oil.
Facing fabric, as one of the three elements of clothes, is the key element at utmost determining clothing function.Mosquito repellent arrangement fabric being carried out to durability has wide commercial promise, but is also a major challenge of textile chemistry and engineering field simultaneously.By microcapsules technology, anophelifuge substance is arranged on fabric, anophelifuge substance can be made to realize discharging slowly, but there is the problem of fabric and functional microcapsule binding strength difference here, greatly can affect the serviceability of mosquito repellent fabric.
Summary of the invention
Technical problem to be solved by this invention is: in prior art, and the binding strength of mosquito repellent microcapsules and fabric is low, have impact on the lasting use of mosquito repellent fabric.
For solving this technical problem, the technical solution used in the present invention is:
There is provided a kind of method utilizing mosquito repellent microcapsules to arrange fabric: first preparation is grafted with the pp material of maleic anhydride, again this raw material is prepared into spinning by the technique of melt spinning, mosquito repellent microcapsules are arranged in spinning, finally the polytetrafluorethylecoatings coatings with microcellular structure is coated in the polypropylene fiber spinning after arrangement, obtain mosquito repellent microcapsules and arrange modified polypropylene fiber, the polypropylene spinning arranging modification is woven into fabric, and fabric has lasting repelling effect.
Concrete steps are:
(1) preparation of the pp material of maleic anhydride is grafted with
To in the four-hole bottle that agitator, thermometer and reflux condensing tube are housed, add polypropylene and dimethylbenzene, stir and be warming up to 110-115 DEG C, then add maleic anhydride, continue stirring and treat that material dissolves completely; By gained system temperature to 120-125 DEG C, the xylene solution of benzoyl peroxide is dripped in described system, after dropwising, gained system is warming up to 128-132 DEG C, system temperature, after 3-4 hours, is down to 45-55 DEG C by stirring reaction, and adds acetone in described system, separate out product
By product obtained above after suction filtration, washing, be placed in apparatus,Soxhlet's, with acetone extraction after 24 hours, dry at 75-80 DEG C, obtain the polypropylene of maleic anhydride graft,
On raw material polypropylene after grafted maleic anhydride, enhance the polarity of raw material, adopt the spinning that the pp material with polarity is prepared into, the mosquito repellent microcapsules that can get on arrangement better on the one hand combine, the more important thing is: can attract, promote follow-up polytetrafluorethylecoatings coatings to polarity polypropylene fiber closely coated, clad is avoided to come off in the processes such as washing, friction
Wherein, polypropylene is that blue star group Plant of Tianjin Petrochemical Company 3# is polypropylene dedicated, melt index 4.5 ~ 6.0g/10min,
The quality of the maleic anhydride added is 8-10% of polypropylene quality, drip benzoyl peroxide be 3-5% of polypropylene quality, the time for adding dripping the xylene solution of benzoyl peroxide is 30-40 minutes, and the total dimethylbenzene added in system and polyacrylic mass ratio are 2-2.3:1;
(2) improved polypropylene spinning is prepared
The polypropylene of the maleic anhydride graft of preparation in step (1) is pulverized, by the screw rod melt extruded of plastic spinning machine, and extrudes formation silk stream by the spinneret orifice on spinning machine casing, obtain the polypropylene spinning of modification,
In this step, after the polypropylene powder of maleic anhydride graft is broken to 200-250 orders, drop into plastic spinning machine through screw rod melt extruded, form fluid and enter screw rod tail end filter, carry out first order spinning to filter, the larger impurity particle of diameter in further removing material, afterwards through measuring pump positive battery metering, the spinning manifold of assembly evenly fluid press-in is equipped with, in casing, spinnerets pads filter screen and play supercharging and constant voltage, and filtration further, spinnerets evenly to be arranged spinneret orifice, by liquid extruding Cheng Siliu, above-mentioned silk flows through the path side blow cooling fibroblast of spinning manifold, protofilament naturally falls drawing-off in path, obtain the polypropylene spinning of modification,
Screw rod each district temperature of described spinning machine is set as: 190 DEG C, a district, 240 DEG C, 2nd district, 250 DEG C, 3rd district, 250 DEG C, 4th district, 245 DEG C, 5th district, 240 DEG C, flange, casing 230 DEG C; Described orifice diameter 0.7mm;
(3) arrangement of mosquito repellent microcapsules is carried out to improved polypropylene spinning
Adopt the dressing liquid of mosquito repellent microcapsules dip the improved polypropylene spinning obtained in step (2) and dry, obtain the improved polypropylene spinning arranging mosquito repellent microcapsules,
Wherein, dip and be operating as two leachings two and roll, bath raio (spinning fibre weight: dressing liquid weight) is 1:25, pick-up 70%-80%, dips rear 70 DEG C of oven dry,
Mosquito repellent microcapsules are the plant extractss with mosquito repellent function for core is prepared from, and the preferred natural organic high-molecular material of cyst material can certainly be common microcapsule wall material, and the particle size of microcapsules controls to be 1 ~ 10 micron,
As preferably: core plant extracts is selected from one or more the mixture in nimbin, Flos Pelargonii Hortori, menthyl lactate, Honegsukle flower P.E, Flos Chrysanthemi Indici extract, agastache extract, atractylodes chinensis or Flos Caryophylli extract,
In the dressing liquid of above-mentioned mosquito repellent microcapsules, microcapsules concentration is 15 ~ 30g/L;
(4) coated polytetrafluoroethylene (PTFE) protective layer
The arrangement obtained in step (3) is immersed in the system be made up of tetrafluoroethylene monomer, deionized water, activator, initator, softener, pore-foaming agent by the improved polypropylene spinning of mosquito repellent microcapsules and dips, by the polypropylene spinning after dipping at 80 DEG C after drying, and at 120 DEG C heat treatment 5-15min, obtain having the arrangement improved polypropylene spinning that the polytetrafluoroethylene (PTFE) of microcellular structure is coated
Wherein, the arrangement polypropylene spinning of modification and the mass ratio of tetrafluoroethylene monomer are 10:1-1.5, the arrangement polypropylene spinning of modification and the amount ratio of deionized water are 1-2:10g/mL, the mass ratio of activator, initator, softener, pore-foaming agent and deionized water is respectively 0.3-0.5%, 0.6-1.2%, 0.4-1.0%, 0.2-0.4%
Wherein, activator is HCl, initator is ammonium persulfate or potassium peroxydisulfate, and softener is organic hydroxy silicate emulsion or amido organosilicon emulsion, and pore-foaming agent is PVP (pore-foaming agent PVPK17, pore-foaming agent PVPK30 that Hangzhou Lv Ke Science and Technology Development Co., Ltd. produces);
(5) the arrangement improved polypropylene spinning of the coated polytetrafluoroethylene (PTFE) protective layer obtained in step (4) is woven into fabric, fabric has lasting repelling effect.
Beneficial effect of the present invention is: after the microcapsules with mosquito repellent effect are arranged modified polypropylene spinning surface by the present invention, by the polypropylene spinning outer cladding tetrafluoroethylene protective layer after arrangement, passing through mechanical mode of wrapping up by arranging the microcapsules got on, closely sandwiching, controlling between polypropylene spinning and tetrafluoroethylene clad; And the employing binding agent had in prior art is by microcapsules and spunbond, binding material of long duration is easily degraded, is disconnected, thus loses efficacy, and fixed form in the present invention is by parcel comprehensively, can more effectively stop coming off of microcapsules.
Secondly, the tetrafluoroethylene protective layer of coated polypropylene spinning has microcellular structure, and the mosquito repellent active principle in microcapsules can be discharged by micropore; But the particle diameter that pore size is less than microcapsules need be controlled, avoid microcapsules to pass micropore and skid off coming off.
Detailed description of the invention
Following embodiment, the preparation technology of the mosquito repellent microcapsules in comparative example is as follows:
By 0.6g/L gelatin and each 60mL mixing of 0.6g/L Arabic gum at constant temperature 40 DEG C, adding 20mL menthyl lactate content is the ethanolic solution of 12g/L, 10000r/min shears 4min and obtains dispersion emulsion, pH=4.0 is regulated with 100g/L aqueous acetic acid, frozen water is cooled to 5 DEG C, regulate pH=9.0 with 100g/L sodium hydrate aqueous solution, add the solidification of 370g/L formalin, be warming up to 40 DEG C of solidifications and obtain the culicifuge microcapsules that particle diameter is 4-8 μm.
Embodiment 1
(1) preparation of raw material, in the four-hole bottle that agitator, thermometer and reflux condensing tube are housed, adds polypropylene and dimethylbenzene, stirs and is warming up to 112 DEG C, then add maleic anhydride, continues stirring and treats that material dissolves completely; By gained system temperature to 120 DEG C, in described system, drip the xylene solution of benzoyl peroxide, after dropwising, gained system is warming up to 130 DEG C, and system temperature, after 4 hours, is down to 50 DEG C by stirring reaction, and acetone is added in described system, separate out product
By product obtained above after suction filtration, washing, be placed in apparatus,Soxhlet's, with acetone extraction after 24 hours, dry at 80 DEG C, obtain the polypropylene of maleic anhydride graft,
Wherein, polypropylene is that blue star group Plant of Tianjin Petrochemical Company 3# is polypropylene dedicated, melt index 5.8g/10min,
The quality of the maleic anhydride added is 10% of polypropylene quality, drip benzoyl peroxide be 3.5% of polypropylene quality, the time for adding dripping the xylene solution of benzoyl peroxide is 30 minutes, and the total dimethylbenzene added in system and polyacrylic mass ratio are 2:1;
(2) polypropylene of the maleic anhydride graft of preparation in step (1) is pulverized, by the screw rod melt extruded of plastic spinning machine, and extrudes formation silk stream by the spinneret orifice on spinning machine casing, obtain the polypropylene spinning of modification,
Wherein, screw rod each district temperature setting of spinning machine, 190 DEG C, a district, 240 DEG C, 2nd district, 250 DEG C, 3rd district, 250 DEG C, 4th district, 245 DEG C, 5th district, 240 DEG C, flange, casing 230 DEG C; Described orifice diameter 0.7mm;
(3) adopt the dressing liquid of above-mentioned mosquito repellent microcapsules dip the improved polypropylene spinning obtained in step (2) and dry, obtain the improved polypropylene spinning arranging mosquito repellent microcapsules,
Wherein, in the dressing liquid of mosquito repellent microcapsules, microcapsules concentration is 25g/L,
Dip and be operating as two leachings two and roll, bath raio (spinning fibre weight: dressing liquid weight) is 1:25, pick-up 75%, dips rear 70 DEG C of oven dry;
(4) coated polytetrafluoroethylene (PTFE) protective layer; the arrangement obtained in step (3) there is the improved polypropylene spinning of mosquito repellent microcapsules; immerse in the system be made up of tetrafluoroethylene monomer, deionized water, activator HCl, initiator potassium persulfate, softener organic hydroxy silicate emulsion, pore-foaming agent PVPK17 and dip; pick-up 80%; by the polypropylene spinning after dipping at 80 DEG C after drying; and at 120 DEG C heat treatment 15min; obtain having the arrangement improved polypropylene spinning that the polytetrafluoroethylene (PTFE) of microcellular structure is coated
Wherein, the polypropylene spinning of modification and the mass ratio of tetrafluoroethylene monomer are 10:1.2, the polypropylene spinning of modification and the amount ratio of deionized water are 2:10g/mL, and the mass ratio of activator, initator, softener, pore-foaming agent and deionized water is respectively 0.4%, 1.0%, 0.5%, 0.2%;
(5) the arrangement improved polypropylene spinning of the coated polytetrafluoroethylene (PTFE) protective layer obtained in step (4) is woven into fabric.
Washed immediately by the fabric be prepared into, before and after washing, on fabric, the content of mosquito repellent active ingredient is as shown in table 1.
Embodiment 2
(1) preparation of raw material, in the four-hole bottle that agitator, thermometer and reflux condensing tube are housed, adds polypropylene and dimethylbenzene, stirs and is warming up to 115 DEG C, then add maleic anhydride, continues stirring and treats that material dissolves completely; By gained system temperature to 125 DEG C, in described system, drip the xylene solution of benzoyl peroxide, after dropwising, gained system is warming up to 130 DEG C, and system temperature, after 3 hours, is down to 50 DEG C by stirring reaction, and acetone is added in described system, separate out product
By product obtained above after suction filtration, washing, be placed in apparatus,Soxhlet's, with acetone extraction after 24 hours, dry at 80 DEG C, obtain the polypropylene of maleic anhydride graft,
Wherein, polypropylene is that blue star group Plant of Tianjin Petrochemical Company 3# is polypropylene dedicated, melt index 5.0g/10min,
The quality of the maleic anhydride added is 9% of polypropylene quality, drip benzoyl peroxide be 4% of polypropylene quality, the time for adding dripping the xylene solution of benzoyl peroxide is 40 minutes, and the total dimethylbenzene added in system and polyacrylic mass ratio are 2.1:1;
(2) polypropylene of the maleic anhydride graft of preparation in step (1) is pulverized, by the screw rod melt extruded of plastic spinning machine, and extrudes formation silk stream by the spinneret orifice on spinning machine casing, obtain the polypropylene spinning of modification,
Wherein, screw rod each district temperature setting of spinning machine, 190 DEG C, a district, 240 DEG C, 2nd district, 250 DEG C, 3rd district, 250 DEG C, 4th district, 245 DEG C, 5th district, 240 DEG C, flange, casing 230 DEG C; Described orifice diameter 0.7mm;
(3) adopt the dressing liquid of above-mentioned mosquito repellent microcapsules dip the improved polypropylene spinning obtained in step (2) and dry, obtain the improved polypropylene spinning arranging mosquito repellent microcapsules,
Wherein, in the dressing liquid of mosquito repellent microcapsules, microcapsules concentration is 25g/L,
Dip and be operating as two leachings two and roll, bath raio (spinning fibre weight: dressing liquid weight) is 1:25, pick-up 75%, dips rear 70 DEG C of oven dry;
(4) coated polytetrafluoroethylene (PTFE) protective layer; the arrangement obtained in step (3) there is the improved polypropylene spinning of mosquito repellent microcapsules; immerse in the system be made up of tetrafluoroethylene monomer, deionized water, activator HCl, initiator ammonium persulfate, softener amido organosilicon emulsion, pore-foaming agent PVPK17 and fully dip; by the polypropylene spinning after dipping at 80 DEG C after drying; and at 120 DEG C heat treatment 15min; obtain having the arrangement improved polypropylene spinning that the polytetrafluoroethylene (PTFE) of microcellular structure is coated
Wherein, the polypropylene spinning of modification and the mass ratio of tetrafluoroethylene monomer are 10:1.5, the polypropylene spinning of modification and the amount ratio of deionized water are 1.5:10g/mL, and the mass ratio of activator, initator, softener, pore-foaming agent and deionized water is respectively 0.3%, 1.0%, 0.5%, 0.4%;
(5) the arrangement improved polypropylene spinning of the coated polytetrafluoroethylene (PTFE) protective layer obtained in step (4) is woven into fabric.
Washed immediately by the fabric be prepared into, before and after washing, on fabric, the content of mosquito repellent active ingredient is as shown in table 1.
Comparative example 1:
Compared with embodiment 1, not coated polytetrafluoroethylene (PTFE) protective layer, all the other steps are identical with embodiment 1, and concrete steps are as follows:
(1) preparation of raw material, in the four-hole bottle that agitator, thermometer and reflux condensing tube are housed, adds polypropylene and dimethylbenzene, stirs and is warming up to 112 DEG C, then add maleic anhydride, continues stirring and treats that material dissolves completely; By gained system temperature to 120 DEG C, in described system, drip the xylene solution of benzoyl peroxide, after dropwising, gained system is warming up to 130 DEG C, and system temperature, after 4 hours, is down to 50 DEG C by stirring reaction, and acetone is added in described system, separate out product
By product obtained above after suction filtration, washing, be placed in apparatus,Soxhlet's, with acetone extraction after 24 hours, dry at 80 DEG C, obtain the polypropylene of maleic anhydride graft,
Wherein, polypropylene is that blue star group Plant of Tianjin Petrochemical Company 3# is polypropylene dedicated, melt index 5.8g/10min,
The quality of the maleic anhydride added is 10% of polypropylene quality, drip benzoyl peroxide be 3.5% of polypropylene quality, the time for adding dripping the xylene solution of benzoyl peroxide is 30 minutes, and the total dimethylbenzene added in system and polyacrylic mass ratio are 2:1;
(2) polypropylene of the maleic anhydride graft of preparation in step (1) is pulverized, by the screw rod melt extruded of plastic spinning machine, and extrudes formation silk stream by the spinneret orifice on spinning machine casing, obtain the polypropylene spinning of modification,
Wherein, screw rod each district temperature setting of spinning machine, 190 DEG C, a district, 240 DEG C, 2nd district, 250 DEG C, 3rd district, 250 DEG C, 4th district, 245 DEG C, 5th district, 240 DEG C, flange, casing 230 DEG C; Described orifice diameter 0.7mm;
(3) adopt the dressing liquid of above-mentioned mosquito repellent microcapsules dip the improved polypropylene spinning obtained in step (2) and dry, obtain the improved polypropylene spinning arranging mosquito repellent microcapsules,
Wherein, in the dressing liquid of mosquito repellent microcapsules, microcapsules concentration is 25g/L,
Dip and be operating as two leachings two and roll, bath raio (spinning fibre weight: dressing liquid weight) is 1:25, pick-up 75%, dips rear 70 DEG C of oven dry;
(4) the arrangement improved polypropylene spinning obtained in step (3) is woven into fabric.
Washed immediately by the fabric be prepared into, before and after washing, on fabric, the content of mosquito repellent active ingredient is as shown in table 1.
Comparative example 2:
Compared with embodiment 1, the non-grafted maleic anhydride of the polypropylene in raw material, all the other steps are identical with embodiment 1.
Washed immediately by the fabric be prepared into, before and after washing, on fabric, the content of mosquito repellent active ingredient is as shown in table 1.
Be in each embodiment, comparative example in table 1, on the arrangement improved polypropylene spinning fabric of the coated polytetrafluoroethylene (PTFE) protective layer before and after washing, the changes of contents situation of mosquito repellent active ingredient:
Table 1
Synthesis detects:
Growing × wide × high for putting into 300 mosquitoes in the mosquito cage of 40cm × 30cm × 30cm, by the area of modification fabric cutting 4cm × 4cm prepared in above-described embodiment 1, put into mosquito cage 2min stable after, observe and record the mosquito populations rested on fabric; Fabric is taken out (guaranteeing not take mosquito out of), by GB/T8629-2001 wash 1 time, put into this mosquito cage again after drying, observe during 2min and record the mosquito populations rested on fabric; Take out again and press GB/T8629-2001 washing, drying equally, then test, record 3 times altogether.
Also carry out same experiment to the fabric of embodiment 2, comparative example 1,2, result is as shown in table 2:
Table 2
| 1 time | Wash 1 time | Wash 2 times | |
| Embodiment 1 | 0 | 0 | 2 |
| Embodiment 2 | 0 | 0 | 0 |
| Comparative example 1 | 0 | 24 | 45 |
| Comparative example 2 | 0 | 17 | 29 |
Claims (9)
1. the method utilizing mosquito repellent microcapsules to arrange fabric, it is characterized in that: described method is, first preparation is grafted with the pp material of maleic anhydride, again this raw material is prepared into spinning by the technique of melt spinning, mosquito repellent microcapsules are arranged in spinning, finally the polytetrafluorethylecoatings coatings with microcellular structure is coated in the polypropylene fiber spinning after arrangement, obtains mosquito repellent microcapsules and arrange modified polypropylene fiber, the polypropylene spinning arranging modification is woven into fabric.
2. method for sorting as claimed in claim 1, is characterized in that: the concrete steps of described method are,
(1) preparation of the pp material of maleic anhydride is grafted with
To in the four-hole bottle that agitator, thermometer and reflux condensing tube are housed, add polypropylene and dimethylbenzene, stir and be warming up to 110-115 DEG C, then add maleic anhydride, continue stirring and treat that material dissolves completely; By gained system temperature to 120-125 DEG C, the xylene solution of benzoyl peroxide is dripped in described system, after dropwising, gained system is warming up to 128-132 DEG C, system temperature, after 3-4 hours, is down to 45-55 DEG C by stirring reaction, and adds acetone in described system, separate out product
By product obtained above after suction filtration, washing, be placed in apparatus,Soxhlet's, with acetone extraction after 24 hours, dry at 75-80 DEG C, obtain the polypropylene of maleic anhydride graft;
(2) improved polypropylene spinning is prepared
The polypropylene of the maleic anhydride graft of preparation in step (1) is pulverized, by the screw rod melt extruded of plastic spinning machine, and extrudes formation silk stream by the spinneret orifice on spinning machine casing, obtain the polypropylene spinning of modification;
(3) arrangement of mosquito repellent microcapsules is carried out to improved polypropylene spinning
Adopt the dressing liquid of mosquito repellent microcapsules dip the improved polypropylene spinning obtained in step (2) and dry, obtain the improved polypropylene spinning arranging mosquito repellent microcapsules;
(4) coated polytetrafluoroethylene (PTFE) protective layer
The arrangement obtained in step (3) is immersed in the system be made up of tetrafluoroethylene monomer, deionized water, activator, initator, softener, pore-foaming agent by the improved polypropylene spinning of mosquito repellent microcapsules and dips, by the polypropylene spinning after dipping at 80 DEG C after drying, and at 120 DEG C heat treatment 5-15min, obtain having the arrangement improved polypropylene spinning that the polytetrafluoroethylene (PTFE) of microcellular structure is coated;
(5) the arrangement improved polypropylene spinning of the coated polytetrafluoroethylene (PTFE) protective layer obtained in step (4) is woven into fabric.
3. method for sorting as claimed in claim 2, is characterized in that: the polypropylene described in step (1) is that blue star group Plant of Tianjin Petrochemical Company 3# is polypropylene dedicated, melt index 4.5 ~ 6.0g/10min.
4. method for sorting as claimed in claim 2, it is characterized in that: in step (1), the quality of the maleic anhydride added is 8-10% of polypropylene quality, drip benzoyl peroxide be 3-5% of polypropylene quality, the time for adding dripping the xylene solution of benzoyl peroxide is 30-40 minutes, and the total dimethylbenzene added in system and polyacrylic mass ratio are 2-2.3:1.
5. method for sorting as claimed in claim 2, it is characterized in that: in step (2), after the polypropylene powder of maleic anhydride graft is broken to 200-250 orders, drop into plastic spinning machine through screw rod melt extruded, form fluid and enter screw rod tail end filter, carry out first order spinning to filter, the larger impurity particle of diameter in further removing material, afterwards through measuring pump positive battery metering, the spinning manifold of assembly evenly fluid press-in is equipped with, in casing, spinnerets pads filter screen and play supercharging and constant voltage, and filtration further, spinnerets evenly to be arranged spinneret orifice, by liquid extruding Cheng Siliu, above-mentioned silk flows through the path side blow cooling fibroblast of spinning manifold, protofilament naturally falls drawing-off in path, obtain the polypropylene spinning of modification,
Screw rod each district temperature of described spinning machine is set as, 190 DEG C, a district, 240 DEG C, 2nd district, 250 DEG C, 3rd district, 250 DEG C, 4th district, 245 DEG C, 5th district, 240 DEG C, flange, casing 230 DEG C; Described orifice diameter 0.7mm.
6. method for sorting as claimed in claim 2, it is characterized in that: the core of the mosquito repellent microcapsules described in step (3) is the plant extracts with mosquito repellent function, cyst material is natural organic high-molecular material, and the particle size of described mosquito repellent microcapsules is 1 ~ 10 micron.
7. method for sorting as claimed in claim 6, is characterized in that: described plant extracts is one or more the mixture in nimbin, Flos Pelargonii Hortori, menthyl lactate, Honegsukle flower P.E, Flos Chrysanthemi Indici extract, agastache extract, atractylodes chinensis or Flos Caryophylli extract.
8. method for sorting as claimed in claim 2, is characterized in that: dipping described in step (3) is operating as two leachings two and rolls, and bath raio is 1:25, pick-up 70%-80%, dips rear 70 DEG C of oven dry.
9. method for sorting as claimed in claim 2, it is characterized in that: in step (4), arranging has the improved polypropylene spinning of mosquito repellent microcapsules and the mass ratio of tetrafluoroethylene monomer to be 10:1-1.5, arranging has the improved polypropylene spinning of mosquito repellent microcapsules and the amount ratio of deionized water to be 1-2:10g/mL, and the mass ratio of activator, initator, softener, pore-foaming agent and deionized water is respectively 0.3-0.5%, 0.6-1.2%, 0.4-1.0%, 0.2-0.4%.
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| CN201510301155.3A CN104878607B (en) | 2015-06-04 | 2015-06-04 | A kind of method using anophelifuge microcapsule finish fabric |
| PCT/CN2015/099447 WO2016192388A1 (en) | 2015-06-04 | 2015-12-29 | Method for finishing fabric by adopting mosquito repelling microcapsules |
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| CN201510301155.3A CN104878607B (en) | 2015-06-04 | 2015-06-04 | A kind of method using anophelifuge microcapsule finish fabric |
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| CN104878607B CN104878607B (en) | 2016-08-31 |
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| WO2016192388A1 (en) * | 2015-06-04 | 2016-12-08 | 常州市金坛翰广科技有限公司 | Method for finishing fabric by adopting mosquito repelling microcapsules |
| CN106319981A (en) * | 2016-08-29 | 2017-01-11 | 浩沙实业（福建）有限公司 | Mosquito-repelling polyester finishing method |
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| Publication number | Publication date |
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| WO2016192388A1 (en) | 2016-12-08 |
| CN104878607B (en) | 2016-08-31 |
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