Insect-repellent and mosquito-repellent fabric and method for manufacturing the same

Abstract

The present application relates to D04C1 / 02, and particularly relates to a mosquito repellent fabric and a preparation method thereof. At least comprising polyolefin, polyester and mosquito repellent composition, the mass ratio of the polyolefin, polyester and mosquito repellent composition is (35-45):(5-10):(3-8). The mosquito repellent fabric prepared by the present application has many advantages such as good mechanical property, good mosquito repellent effect, excellent washing resistance and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to D04C1 / 02, in particular to a mosquito-repellent fabric and a preparation method thereof. BACKGROUND

[0002] With the continuous improvement of living standards, consumers have put forward higher requirements for the functionality of fabrics, among which fabrics with mosquito-repellent effect are increasingly favored by consumers, not only meeting the requirements of softness and comfort of fabrics, but also avoiding the trouble of being bitten by mosquitoes in hot summer.

[0003] Patent CN201510301155.3 A method for finishing fabric with mosquito-repellent microcapsules The mosquito-repellent microcapsules are finished on the polypropylene raw material grafted with maleic anhydride, and coated by polytetrafluoroethylene coating. The prepared fabric still has mosquito-repellent effect after being washed for three times.

[0004] Patent CN201610182230.3 A long-acting mosquito-repellent knitted fabric of polyester or blended fabric and a preparation method thereof The polyester fiber is immersed in the mosquito-repellent agent prepared by mixing insect-repellent grass extract, acrylic resin, tea saponin and diethanolamine, and other raw materials are added to prepare the fabric with the advantages of high rubbing and light color fastness, anti-pilling and the like.

[0005] However, the above-mentioned mosquito-repellent fabric is treated by finishing methods such as coating, immersion and microcapsule attachment, and the mosquito-repellent effect is obviously decreased after multiple washing, which cannot achieve the purpose of long-term mosquito-repellent. SUMMARY

[0006] In order to solve the above technical problems, the first aspect of the present application provides a mosquito-repellent fabric, which comprises at least polyolefin, polyester and mosquito-repellent composition, and the mass ratio of the polyolefin, polyester and mosquito-repellent composition is (35-45):(5-10):(3-8).

[0007] Preferably, the polyolefin comprises polyethylene and / or polypropylene.

[0008] Further preferably, the polyolefin comprises polyethylene and polypropylene. The mass ratio of the polyethylene and polypropylene is (6-9):(1.5-2.5).

[0009] Preferably, the polyethylene is low-pressure polyethylene.

[0010] Preferably, the melt flow rate of the polyethylene at 190℃ / 2.16kg is 0.8-1.2g / 10min.

[0011] Preferably, the polypropylene has a melt flow rate of 3.0-4.0 g / 10 min at 190℃ / 2.16 kg.

[0012] Preferably, the polyester has a melting point of 120-140℃.

[0013] Fabric materials are difficult to fully combine with insect repellents, resulting in limited mosquito repellent effect and poor washability of existing mosquito repellent fabrics. The present application unexpectedly found that the polyester with a melting point of 120-140℃ can effectively improve the binding force with hydroxyethyl piperidine carboxylic acid isobutyl ester and deltamethrin and other mosquito repellents. It is speculated that the polyester material with a melting point of 120-140℃ forms a relatively loose spinning structure, the space resistance and energy resistance of the mosquito repellent composition to diffuse into the interior are smaller, and it is easier to diffuse and penetrate into the interior of the fiber, and combine with the fabric, thereby improving the mosquito repellent effect and washability.

[0014] Preferably, the mosquito repellent composition comprises at least one of natural mosquito repellent and / or chemical mosquito repellent.

[0015] Preferably, the chemical mosquito repellent comprises at least one of N,N-diethyl-m-toluamide, N,N-diethylbenzeneacetamide, N,N-diethylphenylacetophenamine, 3-(N-butyl-N-acetyl) amino propionic acid ethyl ester, hydroxyethyl piperidine carboxylic acid isobutyl ester, permethrin, cypermethrin, flumethrin, deltamethrin, tralomethrin, and etofenprox.

[0016] Further preferably, the chemical mosquito repellent comprises hydroxyethyl piperidine carboxylic acid isobutyl ester and deltamethrin. The mass ratio of the hydroxyethyl piperidine carboxylic acid isobutyl ester and deltamethrin is (5-7):(2-4).

[0017] Deltamethrin has a high insect repellent effect, but due to its high toxicity, too high can easily irritate the human body, the present application by using the mosquito repellent composition composed of hydroxyethyl piperidine carboxylic acid isobutyl ester and deltamethrin, reduces the dosage of deltamethrin, reduces the toxicity, hydroxyethyl piperidine carboxylic acid isobutyl ester acts on the tactile and chemical sensory organs of mosquitoes, forms a barrier around the skin, interferes with the tracking of mosquitoes, while deltamethrin destroys the nervous system of mosquitoes, causing tissue lesions, thereby further killing mosquitoes and improving the mosquito repellent effect. Especially when the mass ratio of the hydroxyethyl piperidine carboxylic acid isobutyl ester and deltamethrin is (5-7):(2-4), the washability is good and the mosquito repellent effect is best.

[0018] Preferably, the raw material further comprises inorganic fillers and auxiliaries.

[0019] Preferably, the average particle size of the inorganic filler is 10-80 nm.

[0020] Preferably, the inorganic filler comprises at least one of silica, calcium carbonate, titanium dioxide, kaolin, bentonite, bleaching earth, and zinc oxide.

[0021] Further preferably, the inorganic filler comprises silica and zinc oxide. The mass ratio of the silica and the zinc oxide is (5-7):(3-5).

[0022] Preferably, the average particle size of the silica is 20 nm.

[0023] Preferably, the specific surface area of the silica is 80 m 2 / g.

[0024] Preferably, the average particle size of the zinc oxide is 50 nm.

[0025] Preferably, the specific surface area of the zinc oxide is 30±10 m 2 / g.

[0026] Preferably, the auxiliary agent comprises at least one of a coupling agent, a compatibilizer, a toughening agent, and a plasticizer.

[0027] Further preferably, the auxiliary agent comprises a coupling agent, a compatibilizer, and a plasticizer. The mass ratio of the coupling agent, the compatibilizer, and the plasticizer is (3-5):(2-4):(1.5-2.5).

[0028] Preferably, the coupling agent comprises a silane coupling agent and / or a titanate coupling agent.

[0029] Further preferably, the coupling agent comprises a silane coupling agent.

[0030] Preferably, the silane coupling agent comprises at least one of γ-methacryloyloxypropyltrimethoxysilane, vinyltris(β-methoxyethoxy)silane, 3-glycidyloxypropylmethyldiethoxysilane, and 3-aminopropyltrimethoxysilane.

[0031] Further preferably, the silane coupling agent comprises γ-methacryloyloxypropyltrimethoxysilane.

[0032] Preferably, the compatibilizer comprises a maleic anhydride-based compatibilizer.

[0033] Preferably, the plasticizer comprises a citrate-based plasticizer.

[0034] Further preferably, the citrate-based plasticizer comprises tributyl citrate and / or acetyl tributyl citrate.

[0035] Preferably, the raw materials comprise: polyolefin 35-45 parts by mass, polyester 5-10 parts by mass, inorganic filler 2-4 parts by mass, mosquito repellent composition 3-8 parts by mass, and auxiliary agent 1-5 parts by mass.

[0036] The second aspect of the present application provides a method for preparing the mosquito repellent fabric, comprising the following steps: mixing the inorganic filler and the silane coupling agent uniformly, stirring at 50-65℃ for 5-10min to obtain the modified inorganic filler, then mixing the modified inorganic filler with the remaining raw materials and heating to 130-160℃ to obtain the monofilament or composite filament, and weaving after cooling to obtain the mosquito repellent fabric.

[0037] Advantages:

[0038] The fabric material is difficult to fully combine with the insect repellent, resulting in limited mosquito repellent effect and poor washability of the existing mosquito repellent fabric. The present application provides a mosquito repellent fabric and a preparation method thereof. The polyester with a melting point of 120-140℃ is used to cooperate with the mosquito repellent composition composed of hydroxyethyl piperidine carboxylic acid isobutyl ester and deltamethrin, so as to promote the close combination of hydroxyethyl piperidine carboxylic acid isobutyl ester and deltamethrin with the prepared fiber, effectively block the tracking of mosquitoes to human body, effectively kill mosquitoes, and make the prepared fabric have excellent mechanical properties and good mosquito repellent effect, significantly improve the washability of the fabric, have more efficient and long-lasting mosquito repellent effect, and effectively prolong the service life of the fabric. DETAILED DESCRIPTION

[0039] Example 1

[0040] A mosquito repellent fabric comprises the following raw materials: polyolefin 40 parts by mass, polyester 8 parts by mass, inorganic filler 3 parts by mass, mosquito repellent composition 5 parts by mass, and auxiliary agent 2 parts by mass.

[0041] The polyolefin comprises polyethylene and polypropylene. The mass ratio of the polyethylene to the polypropylene is 8:2. The polyethylene is low-pressure polyethylene. The melt flow rate of the polyethylene at 190℃ / 2.16kg is 0.9g / 10min, which is purchased from Dongguan Xinxi Plastic Raw Material Co., Ltd., model: PetroChina Daqing Petrochemical 5000S. The melt flow rate of the polypropylene at 190℃ / 2.16kg is 3.5g / 10min, which is purchased from Yuyao Chongfeng Plastic Co., Ltd., model: LG / H5300 of South Korea.

[0042] The melting point of the polyester is 130±5℃, the carboxyl content is ≤30mol / t, the color value b is 3±2, the water mass content is ≤0.4%, the diethylene glycol mass content is 1.5±0.2%, and it is semi-dull, which is purchased from SINOPEC Shanghai Petrochemical Co., Ltd.

[0043] The inorganic filler includes silicon dioxide and zinc oxide. The mass ratio of the silicon dioxide and zinc oxide is 6:4. The average particle size of the silicon dioxide is 20 nm, and the specific surface area is 80 m 2 / g, purchased from Beijing Deke Island Technology Co., Ltd., model: CW-SiO2-001; the average particle size of the zinc oxide is 50 nm, and the specific surface area is 30±10 m 2 / g, purchased from Shanghai Chaowei Nanometer Technology Co., Ltd., model: DK-ZnO-F50.

[0044] The anti-mosquito composition includes isobutyl 4-(2-hydroxyethyl)piperazine-1-carboxylate and bromocyclen. The mass ratio of the isobutyl 4-(2-hydroxyethyl)piperazine-1-carboxylate and bromocyclen is 6:3.

[0045] The auxiliary agent includes a coupling agent, a compatibilizer and a plasticizer. The mass ratio of the coupling agent, the compatibilizer and the plasticizer is 4:3:2.

[0046] The coupling agent includes γ-methacryloyloxypropyltrimethoxysilane. The compatibilizer includes maleic anhydride grafted polypropylene, purchased from maleic anhydride grafted polypropylene, model: B2. The plasticizer includes acetyl tributyl citrate.

[0047] A preparation method of an anti-mosquito fabric, comprising the following steps: uniformly mixing inorganic fillers and a silane coupling agent, stirring at 60°C for 8 min to obtain modified inorganic fillers, then uniformly mixing the modified inorganic fillers with the remaining raw materials and heating to 140°C to obtain a single yarn, and weaving after cooling to obtain the anti-mosquito fabric.

[0048] Example 2

[0049] An anti-mosquito fabric, the specific implementation manner is the same as that in Example 1, and the difference is that the mass ratio of the silicon dioxide and the zinc oxide is 7:5.

[0050] Example 3

[0051] An anti-mosquito fabric, the specific implementation manner is the same as that in Example 1, and the difference is that the raw materials include 35 parts of polyolefin, 5 parts of polyester, 2 parts of inorganic fillers, 3 parts of an anti-mosquito composition and 1 part of an auxiliary agent.

[0052] Comparative Example 1

[0053] An anti-mosquito fabric, comprising the following raw materials: 40 parts of polyolefin, 8 parts of polyester, 3 parts of inorganic fillers, 5 parts of an anti-mosquito composition and 2 parts of an auxiliary agent in terms of mass.

[0054] The polyolefin includes polyethylene and polypropylene. The mass ratio of the polyethylene and polypropylene is 8:2. The polyethylene is low-pressure polyethylene. The melt flow rate of the polyethylene at 190℃ / 2.16kg is 0.9g / 10min, which is purchased from Dongguan Xinxi Plastic Raw Material Co., Ltd., model: PetroChina Daqing Petrochemical 5000S. The melt flow rate of the polypropylene at 190℃ / 2.16kg is 3.5g / 10min, which is purchased from Yuyao Chongfeng Plastic Co., Ltd., model: South Korea LG / H5300.

[0055] The melting point of the polyester is 191±2℃, which is purchased from Henan Yuanhong High Polymer New Material Co., Ltd., model: YH101.

[0056] The inorganic filler includes silicon dioxide and zinc oxide. The mass ratio of the silicon dioxide and zinc oxide is 6:4. The average particle size of the silicon dioxide is 20nm, and the specific surface area is 80m 2 / g, which is purchased from Beijing Deke Daojin Technology Co., Ltd., model: CW-SiO2-001; the average particle size of the zinc oxide is 50nm, and the specific surface area is 30±10m 2 / g, which is purchased from Shanghai Chaowei Nanometer Technology Co., Ltd., model: DK-ZnO-F50.

[0057] The anti-mosquito composition includes isobutyl hydroxyethyl piperidine carboxylate and deltamethrin. The mass ratio of the isobutyl hydroxyethyl piperidine carboxylate and deltamethrin is 6:3.

[0058] The auxiliary agent includes a coupling agent, a compatibilizer and a plasticizer. The mass ratio of the coupling agent, the compatibilizer and the plasticizer is 4:3:2.

[0059] The coupling agent includes γ-methacryloyloxypropyl trimethoxysilane. The compatibilizer includes maleic anhydride grafted polypropylene, which is purchased from maleic anhydride grafted polypropylene, model: B2. The plasticizer includes acetyl tributyl citrate.

[0060] A preparation method of an anti-mosquito fabric, comprising the following steps: uniformly mixing an inorganic filler and a silane coupling agent, stirring at 60℃ for 8min to obtain a modified inorganic filler, then uniformly mixing the modified inorganic filler with the remaining raw materials and heating to 200℃ to obtain a single yarn, and weaving after cooling to obtain the anti-mosquito fabric.

[0061] Comparative Example 2

[0062] An anti-mosquito fabric, the specific implementation manner is the same as that in Example 1, except that the mass ratio of the isobutyl hydroxyethyl piperidine carboxylate and deltamethrin is 10:3.

[0063] Performance test

[0064] 1. Anti-mosquito test: The repellency and killing rate were tested according to GB / T 13917.9-2009 "Pesticide registration indoor efficacy test and evaluation part 9: repellent" and GB / T 30126-2013 "Detection and evaluation of anti-mosquito performance of textiles", and the test conditions were: temperature 26℃, relative humidity 60%, insects: white striped Aedes adults 3-5 days after emergence without blood sucking.

[0065] 2. Washability test: The fabric was washed according to GB / T 3921-2008, and the mosquito repellency after 50 times of washing was measured.

[0066] 3. Mechanical property test: The breaking elongation was tested according to GB / T 3923.1-1997 "Textiles - Determination of the tensile resistance of fabrics - Part 1: strip method for the determination of the force at break and elongation at break".

[0067] Table 1 Performance test results

[0068]

Claims

1. An insect-repellent and mosquito-proof fabric, characterized in that, The raw material comprises at least polyolefin, polyester and mosquito repellent composition, the mass ratio of the polyolefin, polyester and mosquito repellent composition is (35-45):(5-10):(3-8), the raw material further comprises inorganic filler, auxiliary agent; the polyolefin comprises polyethylene and polypropylene, the mass ratio of the polyethylene and polypropylene is (6-9):(1.5-2.5), the melt flow rate of the polyethylene at 190 ℃ / 2.16 kg is 0.8-1.2 g / 10 min, the melt flow rate of the polypropylene at 190 ℃ / 2.16 kg is 3.0-4.0 g / 10 min; the melting point of the polyester is 120-140 ℃; the mosquito repellent composition comprises isobutyl hydroxyethyl piperidine carboxylate and bromocyclen; the mass ratio of the isobutyl hydroxyethyl piperidine carboxylate and bromocyclen is (5-7):(2-4); the auxiliary agent comprises coupling agent, and further comprises at least one of compatibilizer, toughening agent, antioxidant and plasticizer.

2. The insect-repellent and mosquito-repellent fabric according to claim 1, wherein The inorganic filler comprises at least one of silica, calcium carbonate, titanium white powder, kaolin, bentonite, bleaching earth and zinc oxide.

3. The insect-repellent and mosquito-repellent fabric according to claim 2, wherein The average particle size of the inorganic filler is 10-80 nm.

4. A process for the preparation of a repellent and mosquito protective fabric as claimed in any one of claims 1 to 3, wherein, The method comprises the following steps: uniformly mixing the inorganic filler and coupling agent, stirring at 50-65 ℃ for 5-10 min to obtain modified inorganic filler, then uniformly mixing the modified inorganic filler with the remaining raw material and heating to 130-160 ℃ to obtain monofilament or composite filament, and weaving after cooling to obtain the insect-repellent and mosquito-repellent fabric.

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