CN104894745A - High-elastic antibacterial vertical cotton with fiber-bonded honeycomb structure and preparation method of vertical cotton - Google Patents
High-elastic antibacterial vertical cotton with fiber-bonded honeycomb structure and preparation method of vertical cotton Download PDFInfo
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Abstract
High-elastic antibacterial vertical cotton with a fiber-bonded honeycomb structure comprises back-and-forth Z-shaped sequentially stacked fiber meshes. Antibacterial agents are sprayed into the fiber meshes, the fiber meshes are sequentially connected end to end, and hot-melting fibers are clamped between the adjacent fiber meshes. During manufacture, the fiber meshes are prepared by mesh forming pre-preparation and mechanical combing mesh forming procedures and are mixtures of low-melting-point polyester staple fibers and elastic polyester staple fibers, the weight percent of the low-melting-point polyester staple fibers is 15%-35%, and the weight percent of the elastic polyester staple fibers is 65%-85%. After the antibacterial agents are sprayed into the fiber meshes, the fiber meshes are vertically laid by a vertical mesh laying procedure, the hot-melting fibers are spread among the fiber meshes, and the high-elastic antibacterial vertical cotton with the fiber-bonded honeycomb structure is prepared by drying, trimming and winding procedures. The high-elastic antibacterial vertical cotton is high in elasticity, fine in antibacterial property, simple in structure, low in cost and environmentally friendly.
Description
Technical field
The present invention relates to a kind of high-elastic antibacterial upright cotton and manufacture method thereof of fibres bond formula honeycomb structure, belong to Nonwovens Field.
Background technology
Fluff material is the necessity of human society life, closely bound up with the life of people, as the fields such as acoustic material, sofa, mattress, executive chair, sports equipment, clothes all need to use fluff material.Usually sponge, warp-knitted spacer fabric, Three-dimensional Elastic Woven Fabric, the large class of non-weaving cloth four is had according to the preparation method of fluff material.Sponge is a kind of porous material, and the soft foam mainly in polyurethane foamed material is prepared from, because sponge is cheap, lightweight, soft plentiful and resilience good, at market dominate.But sponge produces pollution, the discarded object not mortality shortcoming such as reusable edible, and easily turns to be yellow, and gas permeability, comfortableness are poor.Current Australia and some countries in Europes, because of the environmental pollution of sponge and serious waste of resources, have taked corresponding measure to contain sponge application.Three-dimensional warp knitting space fabric refers to by two fabric faces, the La Sheer utilizing interval yarn to link together through compiling three dimensional needle fabric, such as, with the mattress that space fabric is made, the sense of aching that can prevent patient from producing because of long-term bed.Its remarkable advantage is: production process is environment friendly and pollution-free, recyclable, fastness is good, hot wet migration, warmth retention property and gas permeability are better, soft flexible, overcome the shortcoming of sponge, but due to its design feature, resistance to compression and resilience poor, current range of application is restricted, and particularly cannot meet the elasticity of compression and require higher product.Three-dimensional Elastic Woven Fabric is then a kind of novel fluffy material grown up on the basis of warp-knitted spacer fabric, and have good resilience in a thickness direction, Stability Analysis of Structures, shape is changeable, good integrity, and has the performances such as good poisture-penetrability, gas permeability.But its weaving structure is complicated, and manufacturing cost is higher, is difficult to popularization and application.Along with the development of Nonwovens In Technology, change the orientation of fiber, by non-weaving cloth transversely arranged for common fiber, change into arranged vertically, obtain the non-weaving cloth with honeycomb structure, owing to having unique fibre web rising structure, make product elasticity very good, be commonly called as upright cotton.Compared with sponge, there is the features such as non yellowing, good permeability, dimensionally stable, its discarded object recoverable, adapt to the consumption concept of environmental protection low-carbon (LC) society.Compared with Three-dimensional Elastic Woven Fabric, warp-knitted spacer fabric, technique is simple, and to the strong adaptability of raw material, raw material sources are extensive, and production cost is lower, and product applications is more wide.But easily produce lamination between the fibre web of existing upright cotton and fibre web, affect the elasticity of product; Lack existing high elasticity simultaneously, have again the product of antibacterial effect, the range of application that have impact on upright cotton expands.
Summary of the invention
The object of the invention is to overcome in prior art, existence can not meet that high elasticity, low cost, structure are simple, the technical problem of environmental protection simultaneously, provides a kind of and can meet that high elasticity, low cost, structure are simple simultaneously, environmental protection and have upright cotton and the manufacture method thereof of antibacterial effect.
To achieve these goals, technical scheme of the present invention is: a kind of high-elastic antibacterial upright cotton of fibres bond formula honeycomb structure, comprise the multiple fibre webs stacked gradually, it is characterized in that: the internal spray of described fibre web has antiseptic, fibre web joins end to end successively, arrangement mode is in the Z-shaped come and gone, and between adjacent fibre web, angle is 0 degree or levels off to 0 degree, between adjacent fibre web, accompany meldable fibre.
Described meldable fibre is the low-melting point polyester staple fiber that fusing point is less than or equal to 110 °; The surface density of described meldable fibre between adjacent fibre web is 0.5g/m
2-6g/m
2.
A preparation method for the high-elastic antibacterial upright cotton of above-mentioned fibres bond formula honeycomb structure, is characterized in that: the method comprises the steps:
(1) prepare before becoming net: the various fibrous raw materials prepared needed for fibre web to be mixed, shredding, and finish is added in the process of shredding, fibre web prepare the mixture that material is low-melting point polyester staple fiber and elastic polyester staple fibre, the percentage by weight of low-melting point polyester staple fiber is 15% ~ 35%, and the percentage by weight of elastic polyester staple fibre is 65% ~ 85%; Described low-melting point polyester staple fiber is the skin-core structure type polyester staple fiber that fusing point is less than or equal to 110 °; Described elastic polyester staple fibre is the mixture of any one fiber in the hollow pet staple fiber of three-dimensional crimp, ptt fiber, elastic polyester ELK fiber or two kinds of fibers wherein or the mixture of three kinds of fibers wherein;
(2) mechanical carding becomes net: the fiber after mixing, shredding, adopts mechanical carding to become net legal system for fibre web;
(3) antiseptic is sprayed: spray the antiseptic prepared under a certain pressure to fibre web;
(4) vertical lapping: fibre web feeds vertical lapping machine, and spreads meldable fibre between fibre web and fibre web, carries out vertical lapping, obtains lapping cotton, and lapping width is 5mm ~ 200mm;
(5) drying: the lapping cotton after vertical lapping operation is heated successively, cooled;
(6) trimming: the irregular part in edge cutting the cotton both sides of lapping;
(7) reel: after trimming, winding, the high-elastic antibacterial upright cotton of obtained described fibres bond formula honeycomb structure.
Owing to adopting above technical scheme, the high-elastic antibacterial upright cotton of fibres bond formula honeycomb structure of the present invention, has following characteristics:
One, in the high-elastic antibacterial upright cotton of a kind of fibres bond of the present invention formula honeycomb structure and manufacture method thereof, joining end to end successively, on the positive and negative surface of the fibre web in Z-shaped reciprocating folding type, spread meldable fibre, this design can be guaranteed to accompany enough meldable fibres between folding rear adjacent fibre web, when meldable fibre in drying technique through heating after melting, cementation can be played between adjacent fibre web, increase the cohesive force between fibre web, avoid the layering between fibre web, honeycomb structure is formed on the whole to make high-elastic antibacterial upright cotton, when certain partial compression, pressure can be distributed to periphery, reply fast, good springiness, compared with prior art, greatly can improve the elasticity of product, be suitable for articles for babies, cushion, bed industry articles for use, brassiere cup, automotive trim, the field that the aeroelastic requirements such as sport guard textiles are high.Therefore, good springiness of the present invention.
Two, the present invention selects the mixture of any one fiber in Three-dimensional crimped hollow polyester staple fiber, ptt fiber, elastic polyester ELK fiber or two kinds of fibers wherein or the mixture of three kinds of fibers to be wherein the raw material of fibre web, due to the good springiness of these fibers itself, the good springiness of the upright cotton therefore prepared.
Three, the present invention selects the antiseptic of good anti-bacterial effect, sprays into fibre web with the form of spraying, and can realize upright cotton and have antibacterial object.
Four, in the high-elastic antibacterial upright cotton of a kind of fibres bond of the present invention formula honeycomb structure and manufacture method thereof, the rising structure that final products are unique in vertical direction, in addition the cohesive force provided by low-melting point polyester staple fiber between fibre web, make fiber assembly possess great elasticity and compressive property, and can layering be avoided; Compared with sponge, this product non yellowing, good permeability, dimensionally stable, discarded object recoverable, adapt to the consumption concept of environmental protection low-carbon (LC) society, compared with Three-dimensional Elastic Woven Fabric, warp-knitted spacer fabric, technique is simple, to the strong adaptability of raw material, raw material sources are extensive, and production cost is lower, and product applications is more wide.Therefore, the present invention is high elasticity, low cost not only, and structure is simple, environmental protection.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
See Fig. 1, a kind of high-elastic antibacterial upright cotton of fibres bond formula honeycomb structure, comprise the multiple fibre webs 1 stacked gradually, it is characterized in that: the internal spray of described fibre web 1 has antiseptic 3, fibre web 1 joins end to end successively, arrangement mode is in the Z-shaped come and gone, and between adjacent fibre web 1, angle is 0 degree or levels off to 0 degree, between adjacent fibre web 1, accompany meldable fibre 2.
Described meldable fibre 2 is less than or equal to the low-melting point polyester staple fiber of 110 ° for fusing point; The surface density of described meldable fibre 2 between adjacent fibre web 1 is 0.5g/m
2-6g/m
2.
A preparation method for the high-elastic antibacterial upright cotton of above-mentioned fibres bond formula honeycomb structure, is characterized in that: the method comprises the steps:
(1) prepare before becoming net: the various fibrous raw materials prepared needed for fibre web 1 to be mixed, shredding, non-woven mixing opening apparatus running speed is high, because raw material all belongs to chemical fibre, hygroscopicity is poor compared with natural, easily electrostatic is produced in mixing shredding, in the process of shredding, add finish, can prevent because electrostatic produces and affect product quality.Fibre web 1 prepare the mixture that material is low-melting point polyester staple fiber and elastic polyester staple fibre, the percentage by weight of low-melting point polyester staple fiber is 15% ~ 35%, and the percentage by weight of elastic polyester staple fibre is 65% ~ 85%.Low-melting point polyester staple fiber is the skin-core structure type polyester staple fiber that fusing point is less than or equal to 110 °; Elastic polyester staple fibre is the mixture of any one fiber in the hollow pet staple fiber of three-dimensional crimp, ptt fiber, elastic polyester ELK fiber or two kinds of fibers wherein or the mixture of three kinds of fibers wherein.Three-dimensional crimped hollow polyester staple fiber has permanent conjugate, excellent elasticity, ptt fiber is a kind of corn type polyster fibre, soft, elasticity is better than polyster fibre, elastic polyester ELK fiber has turnover spring structure, elastic restoring force is strong, the elasticity of fibre web can be improved, therefore adopt Three-dimensional crimped hollow polyester staple fiber, ptt fiber or elastic polyester ELK fiber to be raw material, all can improve the elasticity of product;
(2) mechanical carding becomes net: the fiber after mixing, shredding, adopts mechanical carding to become net legal system for fibre web 1;
(3) antiseptic is sprayed: spray the antiseptic 3 prepared under a certain pressure to fibre web, make antiseptic 3 can be evenly distributed in the inside of fibre web 1 as far as possible, after being convenient to drying, obtain good anti-microbial property;
(4) vertical lapping: fibre web 1 feeds vertical lapping machine, and spreads meldable fibre 2 between fibre web 1 and fibre web 1, carries out vertical lapping, obtains lapping cotton.Meldable fibre 2 selects low-melting point polyester staple fiber, overall honey comb structure is formed in order to make final products, low-melting point polyester staple fiber sprinkles even as far as possible, and the amount of spreading is not easily too much, avoid because of after low-melting point polyester staple fiber melting, between fibre web 1, form the membrane structure that one deck hardens, affect the honeycomb structure of product on the contrary, cause the elasticity of product to reduce.Between adjacent fibre web 1, the surface density of meldable fibre 2 controls at 0.5g/m
2-6g/m
2within scope.When the output speed of vertical lapping machine is certain, the speed of lapping is larger, i.e. on the length direction of product, the number of plies of lapping is more, and the angle between adjacent fibre web 1 is less, more levels off to 0 degree, and fibre web 1 is more in vertical, and the elasticity of product is better.By regulating the technological parameter of vertical lapping, making the angle between adjacent fibre web 1 be 0 degree or leveling off to 0 degree, ensureing the elastic performance of final products.Lapping width is 5mm ~ 200mm.Lapping width is wider, and the thickness of product is thicker, but when lapping width is excessive, the resistance to compression of product and compression resilience will receive impact, deleterious, and lapping width control system is within 200mm;
(5) drying: the lapping cotton after vertical lapping operation is heated successively, cooled.Low-melting point polyester staple fiber melted by heating in lapping cotton, the polymer flow of melting also condenses upon in fiber intersection points, becomes have flexible upright cotton when being reinforced after the cooling of lapping cotton.Meldable fibre 2 melting simultaneously, gets up adjacent fibre web 1 bonding, makes the overall honeycomb structure of product formation, improves the elasticity of product.In fibre web 1, the moisture of antiseptic 3 is evaporated, and makes product have antibacterial effect.Drying mode can adopt hot-air to penetrate the cotton mode of lapping, low-melting point polyester staple fiber is heated, carry out heating rapidly and uniformly at the whole width of lapping cotton, in drying room, temperature accomplishes uniformity as far as possible everywhere, simultaneously the speed of hot blast and direction all can control, and hot blast does not destroy the structure of lapping cotton in process circulating;
(6) trimming: the irregular part in edge cutting the cotton both sides of lapping.After drying operation terminates, drying machine exports on the width of lapping cotton, arranges bead cutter respectively on the both sides of lapping cotton, and by irregular for the edge of lapping cotton cutaway, the lapping of making one fixed width is cotton;
(7) reel: after trimming, winding, the high-elastic antibacterial upright cotton of obtained described fibres bond formula honeycomb structure.
embodiment 1
Thickness is high-elastic antibacterial upright cotton of the fibres bond formula honeycomb structure of 200mm and preparation method thereof.
See Fig. 1, thickness is the high-elastic antibacterial upright cotton of 200mm fibres bond formula honeycomb structure, comprise the multiple fibre webs 1 stacked gradually, the internal spray of fibre web 1 has antiseptic 3, fibre web 1 joins end to end successively, arrangement mode is in the Z-shaped come and gone, and between adjacent fibre web 1, angle is 0 degree or levels off to 0 degree, between adjacent fibre web 1, accompany meldable fibre 2.Meldable fibre 2 for fusing point be 110 °, fineness is 2D, and length is the low-melting point polyester staple fiber of 51mm.
The preparation method of the high-elastic antibacterial upright cotton of above-mentioned fibres bond formula honeycomb structure, is characterized in that: the method comprises the steps:
(1) prepare before becoming net: the various fibrous raw materials prepared needed for fibre web 1 to be mixed, shredding, in the process of shredding, add finish.Fibre web 1 prepare the mixture that material is the hollow pet staple fiber of low-melting point polyester staple fiber and three-dimensional crimp.The percentage by weight of low-melting point polyester staple fiber is 15% ~ 35%, and the percentage by weight of the hollow pet staple fiber of three-dimensional crimp is 65% ~ 85%; The fineness of the hollow pet staple fiber of three-dimensional crimp is 3D, and length is 51mm; Low-melting point polyester staple fiber is fusing point 110 °, and fineness is 2D, and length is the skin-core structure type polyester staple fiber of 51mm;
(2) mechanical carding becomes net: the fiber after mixing, shredding, adopts mechanical carding to become net legal system for fibre web 1;
(3) antiseptic is sprayed: spray the antiseptic 3 prepared under a certain pressure to fibre web;
(4) vertical lapping: fibre web 1 feeds vertical lapping machine, and meldable fibre 2 is spread between fibre web 1 and fibre web 1, meldable fibre 2 selects fusing point to be 110 °, and fineness is 2D, length is the low-melting point polyester staple fiber of 51mm, and between adjacent fibre web 1, the surface density of meldable fibre 2 is 0.5g/m
2, carry out vertical lapping, obtain lapping cotton.Lapping width is 200mm;
(5) drying: the lapping cotton after vertical lapping operation is heated successively, cooled;
(6) trimming: the irregular part in edge cutting the cotton both sides of lapping;
(7) reel: after trimming, winding, obtained thickness is the high-elastic antibacterial upright cotton of the fibres bond formula honeycomb structure of 200mm.
embodiment 2
Thickness is high-elastic antibacterial upright cotton of the fibres bond formula honeycomb structure of 5mm and preparation method thereof.
See Fig. 1, thickness is the high-elastic antibacterial upright cotton of 5mm fibres bond formula honeycomb structure, comprise the multiple fibre webs 1 stacked gradually, the internal spray of fibre web 1 has antiseptic 3, fibre web 1 joins end to end successively, arrangement mode is in the Z-shaped come and gone, and between adjacent fibre web 1, angle is 0 degree or levels off to 0 degree, between adjacent fibre web 1, accompany meldable fibre 2.Meldable fibre 2 for fusing point be 110 °, fineness is 2D, and length is the low-melting point polyester staple fiber of 51mm.
The preparation method of the high-elastic antibacterial upright cotton of above-mentioned fibres bond formula honeycomb structure, is characterized in that: the method comprises the steps:
(1) prepare before becoming net: the various fibrous raw materials prepared needed for fibre web 1 to be mixed, shredding, in the process of shredding, add finish.The material of preparing of fibre web 1 is the hollow pet staple fiber of low-melting point polyester staple fiber and three-dimensional crimp, the mixture of ptt fiber.The percentage by weight of low-melting point polyester staple fiber is 15% ~ 35%, and the percentage by weight of the hollow pet staple fiber of three-dimensional crimp, the mixture of ptt fiber is 65% ~ 85%; The fineness of the hollow pet staple fiber of three-dimensional crimp is 3D, and length is 51mm; The fineness of ptt fiber is 2.5D, and length is 51mm; Low-melting point polyester staple fiber is fusing point 110 °, and fineness is 2D, and length is the skin-core structure type polyester staple fiber of 51mm;
(2) mechanical carding becomes net: the fiber after mixing, shredding, adopts mechanical carding to become net legal system for fibre web 1;
(3) antiseptic is sprayed: spray the antiseptic 3 prepared under a certain pressure to fibre web;
(4) vertical lapping: fibre web 1 feeds vertical lapping machine, and meldable fibre 2 is spread between fibre web 1 and fibre web 1, meldable fibre 2 selects fusing point to be 110 °, and fineness is 2D, length is the low-melting point polyester staple fiber of 51mm, and between adjacent fibre web 1, the surface density of meldable fibre 2 is 6g/m
2, carry out vertical lapping, obtain lapping cotton.Lapping width is 5mm;
(5) drying: the lapping cotton after vertical lapping operation is heated successively, cooled;
(6) trimming: the irregular part in edge cutting the cotton both sides of lapping;
(7) reel: after trimming, winding, obtained thickness is the high-elastic antibacterial upright cotton of the fibres bond formula honeycomb structure of 5mm.
embodiment 3
Thickness is high-elastic antibacterial upright cotton of the fibres bond formula honeycomb structure of 105mm and preparation method thereof.
See Fig. 1, thickness is the high-elastic antibacterial upright cotton of 105mm fibres bond formula honeycomb structure, comprise the multiple fibre webs 1 stacked gradually, the internal spray of fibre web 1 has antiseptic 3, fibre web 1 joins end to end successively, arrangement mode is in the Z-shaped come and gone, and between adjacent fibre web 1, angle is 0 degree or levels off to 0 degree, between adjacent fibre web 1, accompany meldable fibre 2.Meldable fibre 2 for fusing point be 110 °, fineness is 2D, and length is the low-melting point polyester staple fiber of 51mm.
The preparation method of the high-elastic antibacterial upright cotton of above-mentioned fibres bond formula honeycomb structure, is characterized in that: the method comprises the steps:
(1) prepare before becoming net: the various fibrous raw materials prepared needed for fibre web 1 to be mixed, shredding, in the process of shredding, add finish.Fibre web 1 prepare the mixture that material is low-melting point polyester staple fiber and Three-dimensional crimped hollow polyester staple fiber, ptt fiber, elastic polyester ELK fiber, the percentage by weight of low-melting point polyester staple fiber is 15% ~ 35%, and the percentage by weight of the mixture of Three-dimensional crimped hollow polyester staple fiber, ptt fiber, elastic polyester ELK fiber is 65% ~ 85%; The fineness of the hollow pet staple fiber of three-dimensional crimp is 3D, and length is 51mm; The fineness of ptt fiber is 2.5D, and length is 51mm; The fineness of elastic polyester ELK fiber is 3D, and length is 51mm; Low-melting point polyester staple fiber is fusing point 110 °, and fineness is 2D, and length is the skin-core structure type polyester staple fiber of 51mm;
(2) mechanical carding becomes net: the fiber after mixing, shredding, adopts mechanical carding to become net legal system for fibre web 1;
(3) antiseptic is sprayed: spray the antiseptic 3 prepared under a certain pressure to fibre web;
(4) vertical lapping: fibre web 1 feeds vertical lapping machine, and meldable fibre 2 is spread between fibre web 1 and fibre web 1, meldable fibre 2 selects fusing point to be 110 °, and fineness is 2D, length is the low-melting point polyester staple fiber of 51mm, and between adjacent fibre web 1, the surface density of meldable fibre 2 is 3g/m
2, carry out vertical lapping, obtain lapping cotton.Lapping width is 105mm;
(5) drying: the lapping cotton after vertical lapping operation is heated successively, cooled;
(6) trimming: the irregular part in edge cutting the cotton both sides of lapping;
(7) reel: after trimming, winding, obtained thickness is the high-elastic antibacterial upright cotton of the fibres bond formula honeycomb structure of 105mm.
Claims (3)
1. the high-elastic antibacterial upright cotton of a fibres bond formula honeycomb structure, comprise the multiple fibre webs (1) stacked gradually, it is characterized in that: the internal spray of described fibre web (1) has antiseptic (3), fibre web (1) joins end to end successively, arrangement mode is in the Z-shaped come and gone, between adjacent fibre web (1), angle is 0 degree or levels off to 0 degree, between adjacent fibre web (1), accompany meldable fibre (2).
2. the high-elastic antibacterial upright cotton of a kind of fibres bond formula honeycomb structure as claimed in claim 1, is characterized in that: described meldable fibre (2) is less than or equal to the low-melting point polyester staple fiber of 110 ° for fusing point; The surface density of described meldable fibre (2) between adjacent fibre web (1) is 0.5g/m
2-6g/m
2.
3. a preparation method for the high-elastic antibacterial upright cotton of the fibres bond formula honeycomb structure described in claim 1 or 2, is characterized in that: the method comprises the steps:
(1) prepare before becoming net: the various fibrous raw materials prepared needed for fibre web (1) to be mixed, shredding, and finish is added in the process of shredding, fibre web (1) prepare the mixture that material is low-melting point polyester staple fiber and elastic polyester staple fibre, the percentage by weight of low-melting point polyester staple fiber is 15% ~ 35%, and the percentage by weight of elastic polyester staple fibre is 65% ~ 85%; Described low-melting point polyester staple fiber is the skin-core structure type polyester staple fiber that fusing point is less than or equal to 110 °; Described elastic polyester staple fibre is the mixture of any one fiber in the hollow pet staple fiber of three-dimensional crimp, ptt fiber, elastic polyester ELK fiber or two kinds of fibers wherein or the mixture of three kinds of fibers wherein;
(2) mechanical carding becomes net: the fiber after mixing, shredding, adopts mechanical carding to become net legal system for fibre web (1);
(3) antiseptic is sprayed: spray the antiseptic (3) prepared under a certain pressure to fibre web (1);
(4) vertical lapping: fibre web (1) feeds vertical lapping machine, and spreads meldable fibre (2) between fibre web (1) and fibre web (1), carries out vertical lapping, obtains lapping cotton, and lapping width is 5mm ~ 200mm;
(5) drying: the lapping cotton after vertical lapping operation is heated successively, cooled;
(6) trimming: the irregular part in edge cutting the cotton both sides of lapping;
(7) reel: after trimming, winding, the high-elastic antibacterial upright cotton of obtained described fibres bond formula honeycomb structure.
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| CN106087256A (en) * | 2016-06-27 | 2016-11-09 | 武汉纺织大学 | A kind of antibiosis anti-acarien function filling non woven cloth and preparation method thereof |
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| CN108589041A (en) * | 2018-04-09 | 2018-09-28 | 中原工学院 | A kind of non-woven sound-absorbing sound and thermal insulating material of three-dimensional upright cotton |
| CN110835808A (en) * | 2019-11-12 | 2020-02-25 | 广州中樱汽车零部件有限公司 | Low-VOC (volatile organic compound) upright cotton for automobiles and preparation method thereof |
| CN111607894A (en) * | 2020-06-02 | 2020-09-01 | 安信纳米生物科技（珠海）有限公司 | Nonwoven cotton dressing for negative pressure drainage and preparation method thereof |
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Application publication date: 20150909 |