CN104824892B - A kind of antibacterial and deodouring fabric and preparation method thereof - Google Patents

A kind of antibacterial and deodouring fabric and preparation method thereof Download PDF

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Publication number
CN104824892B
CN104824892B CN201510284842.9A CN201510284842A CN104824892B CN 104824892 B CN104824892 B CN 104824892B CN 201510284842 A CN201510284842 A CN 201510284842A CN 104824892 B CN104824892 B CN 104824892B
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antibacterial
deodouring
bacterial fibre
precoat
fabric
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CN104824892A (en
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严飞
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ZHEJIANG TIANPAI KNITTING CO., LTD.
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Rabbit Technique Knitting Mill Shen Jurong City
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Abstract

A kind of antibacterial and deodouring fabric provided by the invention, comprise base cloth layer, precoat and be located at base cloth layer and precoat between antibacterial and deodouring layer; Described antibacterial and deodouring layer is that organizine and tram are weaved and formed; Described organizine is the anti-bacterial fibre that contains nano silver particles, and the quality of described nano silver particles accounts for the 0.015-0.020 ‰ of anti-bacterial fibre gross mass; Described tram is the anti-bacterial fibre through the processing of deodorizing dressing liquid. This antibacterial and deodouring fabric structure is simple, with low cost, raw material sources method, very excellent, antibacterial time of antibacterial effect are long, has broad-spectrum antibacterial action.

Description

A kind of antibacterial and deodouring fabric and preparation method thereof
Technical field
The invention belongs to fabric field, particularly a kind of antibacterial and deodouring fabric and preparation method thereof.
Background technology
Along with the raising of people's living standard, people are more and more higher to the requirement of clothes, and consumer is from starting mostPursue warmingly to focusing on the future development such as comfortable, attractive in appearance, good for health, function textile also arises at the historic moment.
In the time of the World War I, people have just started the research to antibacterial fabric, to the modern times,At the beginning of the enteron aisle acute diseases and 2003 that caused by 0-157 pathogenic Escherichia coli in the whole country of Japan in 1996 China due toThe atypical pneumonia that SARS virus causes, has to that they all cause huge injury to the healthy of the mankind, and peopleTherefrom also obtained inspiration: because concerning natural microorganism, the mankind's skin is a kind of well nutrition supply person,Some resident bacterium on people's skin play a part protection skin and avoid pathogenic bacteria harm, once the flora in microorganism losesAdjust, a small amount of pathogenic bacteria in them will amount reproduction, and by skin, respiratory tract, alimentary canal and genital tract mucous membrane to peopleBody works the mischief. Antibacterial fabric, will be anti-in people's disease as the product in a possible prevention and cut-out disease propagation sourceIn controlling, play vital effect.
But, along with social development, the improving constantly of technical merit, the requirement of people aspect dressing be not yetDisconnected raising, has particularly had new requirement to the various performances of garment material, as antistatic, antibacterial, antiviral, environmental protection, healthEtc.. Own through there being preliminary achievement for the antistatic property research of garment material at present, but antibacterial, antiviral for itThe research of processing is also in the embryonic stage.
Summary of the invention
Goal of the invention: in order to overcome above-mentioned the deficiencies in the prior art, the object of the present invention is to provide anti-microbial property excellenceAntibacterial and deodouring fabric and preparation method thereof.
Technical scheme: a kind of antibacterial and deodouring fabric provided by the invention, comprises base cloth layer, precoat and be located at base cloth layerAnd antibacterial and deodouring layer between precoat; Described antibacterial and deodouring layer is that organizine and tram are weaved and formed; Described organizine is received for containingThe anti-bacterial fibre of rice silver particles, the quality of described nano silver particles accounts for the 0.015-0.020 ‰ of anti-bacterial fibre gross mass; Described latitudeSilk is the anti-bacterial fibre through the processing of deodorizing dressing liquid.
As improvement, described anti-bacterial fibre is soybean fiber, cotton fiber, bamboo-carbon fibre, viscose rayon, spandex or nitrileSynthetic fibre fiber.
Improve as another kind, the preparation method of described deodorizing dressing liquid is: by Chinese honey locust, the coptis, vanilla, folium isatidis, fiveMonth Chinese mugwort, eucalyptus leaves, rose decoct 6-10h in water, to obtain final product; Described Chinese honey locust, the coptis, rose, vanilla, folium isatidis, mugwort, eucalyptusThe weight ratio of leaf is (10-20): (15-25): (5-10): (5-10): (5-10): (5-10): 1.
Improve as another kind, the thickness of described base cloth layer and precoat is 0.4-0.8 μ m.
Improve as another kind, described base cloth layer is milk protein fiber, and described precoat is polyacrylonitrile fibre.
The present invention also provides the preparation method of above-mentioned anti-bacterial fibre, comprises the following steps:
(1) organizine antimicrobial treatment: anti-bacterial fibre is immersed in nanometer silver antimicrobial liquid, be warming up to 42-46 DEG C and soak 0.5-1h,Be warming up to again 65-75 DEG C and soak 1-2h, then in 60-70 DEG C of baking 3-5min, obtain footpath silk anti-bacterial fibre;
(2) tram deodorizing processing: anti-bacterial fibre is immersed in deodorizing dressing liquid, soaking at room temperature 8-12h, then in 50-60 DEG CDry 10-20min, obtain tram deodorization fiber;
(3) braiding: footpath silk anti-bacterial fibre and tram deodorization fiber are woven into antibacterial and deodouring layer;
(4) antibacterial and deodouring fabric preparation: antibacterial and deodouring layer is fixed between base cloth layer and precoat, obtains antibacterial and deodouringFabric.
In step (2), the preparation method of described deodorizing dressing liquid is: by Chinese honey locust, the coptis, vanilla, folium isatidis, mugwort,Eucalyptus leaves, rose decoct 6-10h in water, to obtain final product; Described Chinese honey locust, the coptis, rose, vanilla, folium isatidis, mugwort, eucalyptus leavesWeight ratio be (10-20): (15-25): (5-10): (5-10): (5-10): (5-10): 1.
Beneficial effect: antibacterial and deodouring fabric structure provided by the invention is simple, with low cost, raw material sources method, antibacterialVery excellent, the antibacterial time of deodorizing effect is long, has broad-spectrum antibacterial action.
Detailed description of the invention
Embodiment 1
Antibacterial and deodouring fabric, comprise base cloth layer, precoat and be located at base cloth layer and precoat between antibacterial and deodouring layer;Described antibacterial and deodouring layer is that organizine and tram are weaved and formed; Described organizine is the anti-bacterial fibre that contains nano silver particles, described in receiveThe quality of rice silver particles accounts for 0.018 ‰ of anti-bacterial fibre gross mass; Described tram is the anti-bacterial fibre through the processing of deodorizing dressing liquid.
Described base cloth layer is milk protein fiber, and described precoat is polyacrylonitrile fibre, and described anti-bacterial fibre is soybeanAzelon, cotton fiber, bamboo-carbon fibre, viscose rayon, spandex or acrylic fiber; The thickness of described base cloth layer and precoat is0.6μm。
The preparation of anti-bacterial fibre, comprises the following steps:
(1) preparation of deodorizing dressing liquid: by Chinese honey locust, the coptis, vanilla, folium isatidis, mugwort, eucalyptus leaves, rose in waterDecoct 6h, to obtain final product; The weight ratio of described Chinese honey locust, the coptis, rose, vanilla, folium isatidis, mugwort, eucalyptus leaves is 10:15:5:10:5:10:1。
(2) organizine antimicrobial treatment: anti-bacterial fibre is immersed in nanometer silver antimicrobial liquid, be warming up to 42 DEG C and soak 1h, then heat upTo 65 DEG C of immersion 2h, then in 60 DEG C of baking 3min, obtain footpath silk anti-bacterial fibre;
(3) tram deodorizing processing: anti-bacterial fibre is immersed in deodorizing dressing liquid, soaking at room temperature 12h, then in 60 DEG C of bakings10min, obtains tram deodorization fiber;
(4) braiding: footpath silk anti-bacterial fibre and tram deodorization fiber are woven into antibacterial and deodouring layer;
(5) antibacterial and deodouring fabric preparation: antibacterial and deodouring layer is fixed between base cloth layer and precoat, obtains antibacterial and deodouringFabric.
Embodiment 2
Antibacterial and deodouring fabric, comprise base cloth layer, precoat and be located at base cloth layer and precoat between antibacterial and deodouring layer;Described antibacterial and deodouring layer is that organizine and tram are weaved and formed; Described organizine is the anti-bacterial fibre that contains nano silver particles, described in receiveThe quality of rice silver particles accounts for 0.015 ‰ of anti-bacterial fibre gross mass; Described tram is the anti-bacterial fibre through the processing of deodorizing dressing liquid.
Described base cloth layer is milk protein fiber, and described precoat is polyacrylonitrile fibre, and described anti-bacterial fibre is soybeanAzelon, cotton fiber, bamboo-carbon fibre, viscose rayon, spandex or acrylic fiber; The thickness of described base cloth layer and precoat is0.4μm。
The preparation of anti-bacterial fibre, comprises the following steps:
(1) preparation of deodorizing dressing liquid: by Chinese honey locust, the coptis, vanilla, folium isatidis, mugwort, eucalyptus leaves, rose in waterDecoct 10h, to obtain final product; The weight ratio of described Chinese honey locust, the coptis, rose, vanilla, folium isatidis, mugwort, eucalyptus leaves is 20:25:10:5:10:5:1。
(2) organizine antimicrobial treatment: anti-bacterial fibre is immersed in nanometer silver antimicrobial liquid, be warming up to 46 DEG C and soak 0.5h, then riseWarm to 75 DEG C of immersion 1h, then in 70 DEG C of baking 5min, obtain footpath silk anti-bacterial fibre;
(3) tram deodorizing processing: anti-bacterial fibre is immersed in deodorizing dressing liquid, soaking at room temperature 8h, then in 50 DEG C of bakings20min, obtains tram deodorization fiber;
(4) braiding: footpath silk anti-bacterial fibre and tram deodorization fiber are woven into antibacterial and deodouring layer;
(5) antibacterial and deodouring fabric preparation: antibacterial and deodouring layer is fixed between base cloth layer and precoat, obtains antibacterial and deodouringFabric.
Embodiment 3
Antibacterial and deodouring fabric, comprise base cloth layer, precoat and be located at base cloth layer and precoat between antibacterial and deodouring layer;Described antibacterial and deodouring layer is that organizine and tram are weaved and formed; Described organizine is the anti-bacterial fibre that contains nano silver particles, described in receiveThe quality of rice silver particles accounts for 0.020 ‰ of anti-bacterial fibre gross mass; Described tram is the anti-bacterial fibre through the processing of deodorizing dressing liquid.
Described base cloth layer is milk protein fiber, and described precoat is polyacrylonitrile fibre, and described anti-bacterial fibre is soybeanAzelon, cotton fiber, bamboo-carbon fibre, viscose rayon, spandex or acrylic fiber; The thickness of described base cloth layer and precoat is0.8μm。
The preparation of anti-bacterial fibre, comprises the following steps:
(1) preparation of deodorizing dressing liquid: by Chinese honey locust, the coptis, vanilla, folium isatidis, mugwort, eucalyptus leaves, rose in waterDecoct 8h, to obtain final product; The weight ratio of described Chinese honey locust, the coptis, rose, vanilla, folium isatidis, mugwort, eucalyptus leaves is 15:20:8:8:7:7:1。
(2) organizine antimicrobial treatment: anti-bacterial fibre is immersed in nanometer silver antimicrobial liquid, be warming up to 45 DEG C and soak 0.8h, then riseWarm to 70 DEG C of immersion 1-2h, then in 65 DEG C of baking 4min, obtain footpath silk anti-bacterial fibre;
(3) tram deodorizing processing: anti-bacterial fibre is immersed in deodorizing dressing liquid, soaking at room temperature 10h, then in 55 DEG C of bakings15min, obtains tram deodorization fiber;
(4) braiding: footpath silk anti-bacterial fibre and tram deodorization fiber are woven into antibacterial and deodouring layer;
(5) antibacterial and deodouring fabric preparation: antibacterial and deodouring layer is fixed between base cloth layer and precoat, obtains antibacterial and deodouringFabric.
The antibacterial fabric performance evaluation of embodiment 1 to 3:
Test with reference to GB/T15979-2002 method. The results are shown in Table 1.
Table 1
Deodoriging properties test: fabric is placed in the container of tested gas (ammonia, hydrogen sulfide) of concentration known C0, closeClose after 1.5h, measure the concentration C 1 of north side gas in closed container with corresponding gas detecting tube, obtain deodorizing percentage=(1-C1/C0) × 100%. The results are shown in Table 2.
Table 2

Claims (6)

1. an antibacterial and deodouring fabric, is characterized in that: comprise base cloth layer (1), precoat (2) and be located at base cloth layer (1) andAntibacterial and deodouring layer (3) between precoat (2); Described antibacterial and deodouring layer (3) is weaved and is formed for organizine and tram; Described organizine isThe anti-bacterial fibre that contains nano silver particles, the quality of described nano silver particles accounts for the 0.015-0.020 ‰ of anti-bacterial fibre gross mass;Described tram is the anti-bacterial fibre through the processing of deodorizing dressing liquid; The preparation method of described deodorizing dressing liquid is: by Chinese honey locust, the coptis,Vanilla, folium isatidis, mugwort, eucalyptus leaves, rose decoct 6-10h in water, to obtain final product; Described Chinese honey locust, the coptis, rose, vanilla, largeThe weight ratio of leafiness, mugwort, eucalyptus leaves is (10-20): (15-25): (5-10): (5-10): (5-10): (5-10): 1.
2. a kind of antibacterial and deodouring fabric according to claim 1, is characterized in that: described anti-bacterial fibre is soybean protein fibreDimension, cotton fiber, bamboo-carbon fibre, viscose rayon, spandex or acrylic fiber.
3. a kind of antibacterial and deodouring fabric according to claim 1, is characterized in that: described base cloth layer (1) and precoat (2)Thickness be 0.4-0.8 μ m.
4. a kind of antibacterial and deodouring fabric according to claim 1, is characterized in that: described base cloth layer (1) is milk proteinFiber, described precoat (2) is polyacrylonitrile fibre.
5. a preparation method for the antibacterial and deodouring fabric described in claim 1 to 4 any one, is characterized in that: comprise followingStep:
(1) organizine antimicrobial treatment: anti-bacterial fibre is immersed in nanometer silver antimicrobial liquid, be warming up to 42-46 DEG C and soak 0.5-1h, then riseWarm to 65-75 DEG C of immersion 1-2h, then in 60-70 DEG C of baking 3-5min, obtain footpath silk anti-bacterial fibre;
(2) tram deodorizing processing: anti-bacterial fibre is immersed in deodorizing dressing liquid, soaking at room temperature 8-12h, then dry 10-in 50-60 DEG C20min, obtains tram deodorization fiber;
(3) braiding: footpath silk anti-bacterial fibre and tram deodorization fiber are woven into antibacterial and deodouring layer;
(4) antibacterial and deodouring fabric preparation: antibacterial and deodouring layer is fixed between base cloth layer and precoat, obtains antibacterial and deodouring faceMaterial.
6. the preparation method of a kind of antibacterial and deodouring fabric according to claim 5, is characterized in that: in step (2), described inThe preparation method of deodorizing dressing liquid is: Chinese honey locust, the coptis, vanilla, folium isatidis, mugwort, eucalyptus leaves, rose are decocted to 6-in water10h, to obtain final product; The weight ratio of described Chinese honey locust, the coptis, rose, vanilla, folium isatidis, mugwort, eucalyptus leaves is (10-20): (15-25):(5-10):(5-10):(5-10):(5-10):1。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107415390A (en) * 2017-06-21 2017-12-01 合肥远科服装设计有限公司 A kind of garment material

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105755645A (en) * 2016-05-09 2016-07-13 江苏苏扬服帽有限公司 Anti-bacterial selfpurging blended fabric and production technology thereof
CN106222834A (en) * 2016-08-03 2016-12-14 江苏顺远新材料科技股份有限公司 A kind of super imitative cotton face fabric of antibacterial and deodorizing comfortable type
CN106319938A (en) * 2016-08-25 2017-01-11 厦门博正科技有限公司 Nano silver durable antibacterial cloth permeated by semiconductor and preparing method thereof
CN109094135A (en) * 2018-07-25 2018-12-28 江苏惟妙纺织科技有限公司 A kind of bacteria mildew-proof disappears peculiar smell fabric and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103101276A (en) * 2012-11-15 2013-05-15 苏州金尚豪纺织有限公司 Efficient antibacterial deodorant fabric
CN103469542A (en) * 2013-09-10 2013-12-25 中国纺织科学研究院 Bacterial cellulose fiber containing nano-silver chloride particles and preparation method of fiber
CN103660432A (en) * 2013-12-19 2014-03-26 苏州志向纺织科研股份有限公司 Metal antibacterial fabric
CN103882688A (en) * 2012-12-22 2014-06-25 青岛同冠王实业有限公司 Method for preparing underwear from nano-silver fiber
CN204136507U (en) * 2014-09-15 2015-02-04 沈卫军 The antibiotic facing material that a kind of sense of touch is good

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103101276A (en) * 2012-11-15 2013-05-15 苏州金尚豪纺织有限公司 Efficient antibacterial deodorant fabric
CN103882688A (en) * 2012-12-22 2014-06-25 青岛同冠王实业有限公司 Method for preparing underwear from nano-silver fiber
CN103469542A (en) * 2013-09-10 2013-12-25 中国纺织科学研究院 Bacterial cellulose fiber containing nano-silver chloride particles and preparation method of fiber
CN103660432A (en) * 2013-12-19 2014-03-26 苏州志向纺织科研股份有限公司 Metal antibacterial fabric
CN204136507U (en) * 2014-09-15 2015-02-04 沈卫军 The antibiotic facing material that a kind of sense of touch is good

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107415390A (en) * 2017-06-21 2017-12-01 合肥远科服装设计有限公司 A kind of garment material

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Effective date of registration: 20180530

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Address before: 212403 Zhenjiang Jurong City, Jiangsu Province, Jurong 18 town Jurong rabbit knitting factory

Patentee before: Rabbit technique knitting mill, Shen, Jurong City

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