CN107700072A - A kind of negative pressure needle-punching method of aramid fiber/glass mat - Google Patents
A kind of negative pressure needle-punching method of aramid fiber/glass mat Download PDFInfo
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- CN107700072A CN107700072A CN201711004154.8A CN201711004154A CN107700072A CN 107700072 A CN107700072 A CN 107700072A CN 201711004154 A CN201711004154 A CN 201711004154A CN 107700072 A CN107700072 A CN 107700072A
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- Prior art keywords
- aramid fiber
- glass
- negative pressure
- acupuncture
- fiber
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Classifications
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2101/00—Inorganic fibres
- D10B2101/02—Inorganic fibres based on oxides or oxide ceramics, e.g. silicates
- D10B2101/06—Glass
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
- D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The present invention relates to a kind of negative pressure needle-punching method of aramid fiber/glass mat, belongs to technical field of textile processing.Described method refers to use under condition of negative pressure to puffy aramid fiber/glass fiber mesh after shredding combing and lapping by carrying out negative-pressure adsorption during acupuncture platform upper surface in a kind of negative pressure needle-punching method of aramid fiber/glass mat, aramid fiber/glass fiber mesh is adsorbed to shrink to negative pressure traffic direction, while aramid fiber/glass fiber mesh shrinks, the upper acupuncture board pricker above acupuncture platform carries out acupuncture to the aramid fiber after contraction/glass fiber mesh.The addition of negative pressure device reduces acupuncture number, reduces damage of the pricker to fiber；Negative pressure overcomes aramid fiber/glass fiber mesh to the effect of aramid fiber/glass fiber bundle negative-pressure adsorption due to feed increcement is low caused by fluffy the problem of, so as to improve the feed increcement of aramid fiber/glass mat and final product quality, the cost of production is reduced.
Description
Technical field
The present invention relates to a kind of negative pressure needle-punching method of aramid fiber/glass mat, belong to technical field of textile processing.
Background technology
Aramid fiber/glass mat due to its is resistant to chemical etching, fire prevention, fire-retardant, waterproof, ageing-resistant, against weather, absolutely
The features such as edge.It is used to do fiberglass base fabric, anti-corrosion, insulation, fire protection flame retarding, waterproof material, acoustic material, lining hot material, mistake
Filter material material, epoxy copperclad plate and electrical apparatus insulation product etc., wherein at fire-retardant aspect using relatively broad.Conventional aramid fiber is fine
The manufacturing process of dimension/glass mat is to carry out alternately lapping after aramid fiber and glass fibre are carried out into shredding combing respectively,
If carrying out acupuncture through dried layer aramid fiber/glass fiber mesh with the pricker pierced with hook, when pricker is pierced into aramid fiber/glass
Aramid fiber/the glass fiber bundle formed during web passes through aramid fiber/glass fiber mesh, and fibre bundle is in different layers aramid fiber fibre
Run through between dimension/glass fiber mesh, on the one hand add the interlayer strength between aramid fiber/glass fiber mesh；On the other hand
Also aramid fiber/glass fibre in every layer of web is changed from soft fluffy state to dense state, gradually form with interlayer
Aramid fiber/glass mat of strength, the effect of acupuncture include densification and reinforcement effect, and its specific process is when thorn
When being needled into aramid fiber/glass fiber mesh, pricker band kinetodesma move, by aramid fiber/glass fibre that pricker band is lived with
Pricker passes through aramid fiber/glass fiber mesh layer, and aramid fiber/glass fibre is mutually tangled in motion process, obvolvent is formed
Fibre bundle, aramid fiber/glass fiber mesh is produced certain extruding, compressed aramid fiber/glass fiber mesh.Pricker
Go up after being pierced into certain depth, now crochet hook is that forward, aramid fiber/glass fibre is departed from hook thorn and stayed with the state of near vertical
The process that acupuncture is realized in riveting effect is formed in aramid fiber/glass fiber mesh, makes aramid fiber/glass fiber mesh by riveting
Connect the purpose realized and reinforced.Such as Chinese patent publication No. CN1886542A, date of publication on December 27th, 2006, the name of innovation and creation
Referred to as " needled glass mat ", this application case discloses to be taken to form line layer by placing or projecting transport line, then with thorn
Pin acupuncture line layer obtains glass felt.During it is disadvantageous in that by acupuncture formation aramid fiber/glass mat, by
Relatively soft in aramid fiber, fiberglass surfacing is smooth, and when pricker hook pierces to form fibre bundle, part aramid fiber/glass fibre is because rubbing
Wipe that coefficient is small and cause fibre bundle formation efficiency low, cause acupuncture to reach closely knit less efficient, ultimately result in aramid fiber/glass
The interlayer strength of glass fibrofelt is low.
The content of the invention
For above-mentioned problem, it is an object of the invention to provide a kind of negative pressure of aramid fiber/glass mat
Needle-punching method, to achieve these goals, its technical solution is：
A kind of negative pressure needle-punching method of aramid fiber/glass mat, a kind of described aramid fiber/glass mat
Negative pressure needle-punching method refers to set negative pressure device below acupuncture platform, aramid fiber/glass fibers after shredding combing and lapping
Tie up net with 10-30m/min transporting velocity by acupuncture platform upper surface when, negative pressure device negative pressure be 0.1-15MPa bar
Negative-pressure adsorption is carried out to the aramid fiber of puffy/glass fiber mesh under part, aramid fiber/glass fiber mesh after absorption is to negative
Press traffic direction to shrink, while aramid fiber/glass fiber mesh shrinks, upper acupuncture board pricker above acupuncture platform with
1000-3000 times/min frequency carries out acupuncture to the aramid fiber after contraction/glass fiber mesh, and upper acupuncture board pricker density is
1000-2000 pieces/m.
As a result of above technical scheme, the present invention is not change existing aramid fiber/glass mat acupuncture work
On the premise of skill, acupuncture is carried out to the aramid fiber after shredding combing and lapping/glass fiber mesh under condition of negative pressure.Negative pressure
The negative pressure of device carries out negative-pressure adsorption to aramid fiber/glass fiber mesh of puffy, is formed due to the negative pressure of negative pressure device
Air-flow makes aramid fiber/glass fibre in aramid fiber/glass fiber mesh fit perfectly on acupuncture platform, aramid fiber/glass fibre
Between space reduce, bottom aramid fiber/glass fiber mesh shrinks to negative pressure direction first, the then aramid fiber/glass on upper strata
Glass web gradually shrinks to negative pressure direction successively with bottom aramid fiber/glass fiber mesh, final aramid fiber/glass fibre
Net reaches dense state to negative pressure traffic direction overall shrinkage, bulk density increase, aramid fiber/glass fiber mesh.Aramid fiber is fine
While dimension/glass fiber mesh shrinks, the upper acupuncture board pricker above acupuncture platform is to aramid fiber/glass fibers after contraction
Dimension net carries out acupuncture, and because aramid fiber/glass fiber mesh reaches dense state before acupuncture, the aramid fiber in unit volume is fine
Dimension/glass fibre radical increases, the frictional force increase between aramid fiber/glass fibre, and aramid fiber after pricker is to contraction is fine
During dimension/glass fiber mesh acupuncture, because the flexibility of aramid fiber is preferable, the rigidity of glass fibre is larger, in the specific bar of negative pressure
Under part, pricker declines the fibre weight for driving aramid fiber to be wrapped on glass fiber bundle and increased, in aramid fiber/glass fiber bundle
Number of fiber increases, and interfibrous winding, which increases, causes aramid fiber/glass fiber bundle close and cohesive force strengthens, so that
The riveting effect of aramid fiber/glass fiber bundle is strengthened, and the interlayer strength between aramid fiber/glass fiber mesh increases.Therefore, adopt
With the technical program, negative pressure first carries out adsorbing contraction to aramid fiber/glass fiber mesh of puffy makes aramid fiber/glass
Web is realized closely knit, reduces the number of acupuncture, reduces damage of the pricker to aramid fiber/glass fibre, after closely knit
Aramid fiber/glass fiber mesh carry out acupuncture and improve the acupuncture effect and final product quality of aramid fiber/glass mat, and
The feed increcement to aramid fiber/glass mat is the method increase, the volume for adding aramid fiber/glass mat is close
Degree and product quality, reduce the cost of production.
Embodiment
With reference to specific embodiment to the present invention a kind of aramid fiber/glass mat negative pressure needle-punching method make into
One step is described in detail：A kind of negative pressure needle-punching method of aramid fiber/glass mat, this method are not change a kind of existing virtue
The aramid fiber and glass fibre of the negative pressure needle-punching method of synthetic fibre fiber/glass mat carry out shredding combing, aramid fiber respectively
With the lapping of glass fibre alternating, aramid fiber/glass fiber mesh acupuncture process, negative pressure device is set using below acupuncture platform,
Negative pressure device can use vavuum pump or centrifugal fan, and aramid fiber/glass fiber mesh after shredding combing and lapping is with 10-
When 30m/min transporting velocity is by acupuncture platform upper surface, to fluffy under conditions of being 0.1-15MPa in the negative pressure of negative pressure device
The aramid fiber of shape/glass fiber mesh carries out negative-pressure adsorption, and aramid fiber/glass fiber mesh after absorption is to negative pressure traffic direction
Shrink, while aramid fiber/glass fiber mesh shrinks, upper acupuncture board pricker above acupuncture platform with 1000-3000 times/
Min frequency carries out acupuncture to the aramid fiber after contraction/glass fiber mesh, and upper acupuncture board pricker density is 1000-2000 pieces/
m.Negative pressure first carries out absorption contraction to aramid fiber/glass fiber mesh of puffy, makes aramid fiber/glass fiber mesh connection tight
It is close, reduce the number of acupuncture, reduce damage of the pricker to aramid fiber/glass fibre, so as to improve aramid fiber/glass
The acupuncture effect and final product quality of glass fibrofelt, and the feed increcement to aramid fiber/glass mat is the method increase, increase
Add the bulk density and product quality of aramid fiber/glass mat, reduce the cost of production.
Specific embodiment
Embodiment 1
Aramid fiber and glass fibre carry out respectively shredding combing and alternately aramid fiber/glass fiber mesh after lapping with
When 10m/min transporting velocity is by acupuncture platform upper surface, to fluffy under conditions of being 0.1MPa in the negative pressure as caused by vavuum pump
The aramid fiber of loose shape/glass fiber mesh carries out negative-pressure adsorption, and aramid fiber/glass fiber mesh after absorption is to negative pressure operation side
To contraction, the upper acupuncture board pricker above acupuncture platform is with 1000 times/min frequency to aramid fiber/glass after absorption
Web carries out acupuncture, and upper acupuncture board pricker density is 1000 pieces/m.By aramid fiber/glass fibre after negative pressure acupuncture
Felt carries out cutting and weighed.
Embodiment 2
Aramid fiber and glass fibre carry out respectively shredding combing and alternately aramid fiber/glass fiber mesh after lapping with
It is right under conditions of being 0.1MPa in the negative pressure as caused by centrifugal fan when 20m/min transporting velocity is by acupuncture platform upper surface
The aramid fiber of puffy/glass fiber mesh carries out negative-pressure adsorption, and aramid fiber/glass fiber mesh after absorption is run to negative pressure
Direction is shunk, and the upper acupuncture board pricker above acupuncture platform is with 2000 times/min frequency to aramid fiber/glass after absorption
Glass web carries out acupuncture, and upper acupuncture board pricker density is 1500 pieces/m.By aramid fiber/glass fibers after negative pressure acupuncture
Dimension felt carries out cutting and weighed.
Embodiment 3
Aramid fiber and glass fibre carry out respectively shredding combing and alternately aramid fiber/glass fiber mesh after lapping with
When 30m/min transporting velocity is by acupuncture platform upper surface, to fluffy under conditions of being 0.1MPa in the negative pressure as caused by vavuum pump
The aramid fiber of loose shape/glass fiber mesh carries out negative-pressure adsorption, and aramid fiber/glass fiber mesh after absorption is to negative pressure operation side
To contraction, the upper acupuncture board pricker above acupuncture platform is with 2000 times/min frequency to aramid fiber/glass after absorption
Web carries out acupuncture, and upper acupuncture board pricker density is 3000 pieces/m.By aramid fiber/glass fibre after negative pressure acupuncture
Felt carries out cutting and weighed.
Embodiment 4
Aramid fiber and glass fibre carry out respectively shredding combing and alternately aramid fiber/glass fiber mesh after lapping with
When 30m/min transporting velocity is by acupuncture platform upper surface, to fluffy under conditions of being 10MPa in the negative pressure as caused by vavuum pump
The aramid fiber of shape/glass fiber mesh carries out negative-pressure adsorption, and aramid fiber/glass fiber mesh after absorption is to negative pressure traffic direction
Shrink, the upper acupuncture board pricker above acupuncture platform is with 3000 times/min frequency to aramid fiber/glass fibers after absorption
Dimension net carries out acupuncture, and upper acupuncture board pricker density is 2000 pieces/m.By aramid fiber/glass mat after negative pressure acupuncture
Cutting is carried out to weigh.
Embodiment 5
Aramid fiber and glass fibre carry out respectively shredding combing and alternately aramid fiber/glass fiber mesh after lapping with
When 30m/min transporting velocity is by acupuncture platform upper surface, to fluffy under conditions of being 15MPa in the negative pressure as caused by vavuum pump
The aramid fiber of shape/glass fiber mesh carries out negative-pressure adsorption, and aramid fiber/glass fiber mesh after absorption is to negative pressure traffic direction
Shrink, the upper acupuncture board pricker above acupuncture platform is with 3000 times/min frequency to aramid fiber/glass fibers after absorption
Dimension net carries out acupuncture, and upper acupuncture board pricker density is 2000 pieces/m.By aramid fiber/glass mat after negative pressure acupuncture
Cutting is carried out to weigh.
Aramid fiber/glass mat and aramid fiber/glass fibre of routine needling technique productions after the negative pressure acupuncture of table 1
The bulk density table of comparisons of felt
As shown in Table 1, due to effect of the negative pressure to aramid fiber/glass fiber mesh, aramid fiber/glass after acupuncture is made
The increase of fibrofelt bulk density, aramid fiber/glass mat is more closely knit, increases with the negative pressure pressure of negative pressure device, aramid fiber
The bulk density increase of fiber/glass mat.It follows that negative pressure improves the acupuncture effect of aramid fiber/glass mat
Fruit.
Claims (1)
1. a kind of negative pressure needle-punching method of aramid fiber/glass mat, including a kind of negative pressure of aramid fiber/glass mat
The aramid fiber and glass fibre of needle-punching method carry out shredding combing, aramid fiber and the lapping of glass fibre alternating, aramid fiber respectively
Fiber/glass fiber mesh acupuncture, it is characterised in that：Described aramid fiber/glass fiber mesh acupuncture refers to below acupuncture platform
Negative pressure device is set, and aramid fiber/glass fiber mesh after shredding combing and lapping is led to 10-30m/min transporting velocity
When crossing acupuncture platform upper surface, to aramid fiber/glass fibers of puffy under conditions of being 0.1-15MPa in the negative pressure of negative pressure device
Dimension net carries out negative-pressure adsorption, and aramid fiber/glass fiber mesh after absorption shrinks to negative pressure traffic direction, aramid fiber/glass
While web shrinks, upper acupuncture board pricker above acupuncture platform with 1000-3000 times/min frequency to contraction after
Aramid fiber/glass fiber mesh carry out acupuncture, upper acupuncture board pricker density is 1000-2000 pieces/m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711004154.8A CN107700072A (en) | 2017-10-24 | 2017-10-24 | A kind of negative pressure needle-punching method of aramid fiber/glass mat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711004154.8A CN107700072A (en) | 2017-10-24 | 2017-10-24 | A kind of negative pressure needle-punching method of aramid fiber/glass mat |
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| Publication Number | Publication Date |
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| CN107700072A true CN107700072A (en) | 2018-02-16 |
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| CN201711004154.8A Pending CN107700072A (en) | 2017-10-24 | 2017-10-24 | A kind of negative pressure needle-punching method of aramid fiber/glass mat |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6108879A (en) * | 1996-09-20 | 2000-08-29 | Johns Manville International, Inc. | Method of making resilient battery separator media |
| US6750166B1 (en) * | 1998-06-20 | 2004-06-15 | Corovin Gmbh | Method for producing a non-woven fibre fabric |
| CN102454046A (en) * | 2010-10-25 | 2012-05-16 | 江苏远大新纺织联合发展有限公司 | Method for manufacturing high-strength needling nonwoven geotextiles |
| CN105363279A (en) * | 2014-08-27 | 2016-03-02 | 徐珂 | Glass fiber and aramid fiber or polysulfonamide composite needle-punched felt and manufacturing method thereof |
| CN105908360A (en) * | 2016-05-24 | 2016-08-31 | 甘木林 | Ecological heat preservation cotton and production technology thereof |
-
2017
- 2017-10-24 CN CN201711004154.8A patent/CN107700072A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6108879A (en) * | 1996-09-20 | 2000-08-29 | Johns Manville International, Inc. | Method of making resilient battery separator media |
| US6750166B1 (en) * | 1998-06-20 | 2004-06-15 | Corovin Gmbh | Method for producing a non-woven fibre fabric |
| CN102454046A (en) * | 2010-10-25 | 2012-05-16 | 江苏远大新纺织联合发展有限公司 | Method for manufacturing high-strength needling nonwoven geotextiles |
| CN105363279A (en) * | 2014-08-27 | 2016-03-02 | 徐珂 | Glass fiber and aramid fiber or polysulfonamide composite needle-punched felt and manufacturing method thereof |
| CN105908360A (en) * | 2016-05-24 | 2016-08-31 | 甘木林 | Ecological heat preservation cotton and production technology thereof |
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Application publication date: 20180216 |