CN105452553B - Method and apparatus for manufacturing non-woven fabrics - Google Patents
Method and apparatus for manufacturing non-woven fabrics Download PDFInfo
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- CN105452553B CN105452553B CN201480043943.0A CN201480043943A CN105452553B CN 105452553 B CN105452553 B CN 105452553B CN 201480043943 A CN201480043943 A CN 201480043943A CN 105452553 B CN105452553 B CN 105452553B
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- belt
- adhesive
- roller
- bonded fabric
- press section
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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
- D04H1/492—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 by fluid jet
-
- 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
- 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
- D04H18/00—Needling machines
- D04H18/02—Needling machines with needles
-
- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/10—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
- D04H3/11—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically by fluid jet
-
- 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
- D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
- D04H5/02—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling
- D04H5/03—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling by fluid jet
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The present invention relates to a kind of methods for manufacturing non-woven fabrics, and non-woven fabrics is formed in former, are then further dehydrated the adhesive-bonded fabric width being consequently formed.Herein,Further dehydration includes the dehydration by belt press section,The belt press section includes roller,At least one inside expelling belt for being preferably designed to Endless band sticked on roller and the external expelling belt for being preferably designed to Endless band wrap the roller,To form extended press nips,Wherein,Adhesive-bonded fabric width is at least arranged in the region of roller between internal expelling belt and external expelling belt,Wherein,The expelling belt of pressure for generating machinery compresses roller with the band stress of at least 15kN/m on the adhesive-bonded fabric width between two expelling belts and adhesive-bonded fabric width and internal expelling belt is thus pressed against roller,Wherein,Non-woven fabrics is formed in former on circular conveyer belt,The adhesive-bonded fabric width being consequently formed at least is directed to belt press section by the conveyer belt and is directed through extended press nips.In addition, being related to a kind of equipment being suitable for carrying out this method.
Description
Technical field
The present invention relates to a kind of methods and equipment for manufacturing non-woven fabrics.
Background technology
Non-woven fabrics is made of the yarn of the cutting of the fiber of finite length, continuous fiber (long filament) or any type and source
Fabric, they are combined into non-woven fabrics (also that is, fibrous layer or web) and in either manner in any number of ways
It is connected with each other.It (such as makes in weaving, knitting, braiding, lace by the intersection of yarn or entanglement, splice system with tufting products
Make generation) made of fabric be not belonging to non-woven fabrics.Foil and paper are also not belonging to non-woven fabrics.
The method for becoming known for manufacturing non-woven fabrics generally comprises non-woven fabrics formation, non-woven fabrics reinforcing and subsequent dehydration.
The different methods that non-woven fabrics is formed are for example described in WO2007/018960A2.Here, non-woven fabrics can be especially by dry
Method, wet method and/or extrusion molding are formed.It is thus known that for example, at least dynamic (dynamical) non-woven fabrics of partial air is formed, wherein nonwoven
Cloth is formed in by air stream on ventilative bottom by fiber at least partly.Alternative as it, non-woven fabrics can also at least portion
It mechanically forms with dividing.Here, non-woven fabrics can be formed for example by the web being stacked removed from fluffing machine or carding machine
Or non-woven fabrics can also be formed directly by carding machine.Alternative according to another, non-woven fabrics can also be based in part on institute
The spunbond process of meaning is formed, wherein non-woven fabrics is made up of the lay of fiber, and the fiber is melted by the polymer passed through from nozzle
Body is weaved and is stretched by cold air and/or mechanical system.In addition, non-woven fabrics can also be at least partially through so-called molten
Spray is formed, wherein non-woven fabrics is made up of the lay of fiber, and the fiber is directly spun by the polymer melt passed through from nozzle
It knits and is stretched to fracture by stream of hot air.In principle it is also conceivable to the arbitrary combination of these non-woven fabrics forming methods.
Subsequent non-woven fabrics, which is reinforced, for example (also referred to as " spunlaced ") to be realized with so-called spun lacing method for strengthening.
This, established non-woven fabrics is reinforced by the winding of fiber, wherein the winding realizes that mode is special by eddy deformation
On the High Pressure Water Jet to non-woven fabrics of concentration.This spun lacing reinforce bring caused by non-woven fabrics other physics and can
The characteristic seen.After high pressure-spun lacing is reinforced, adhesive-bonded fabric width is directed through air-breathing gap first, as much as possible to make
Liquid is removed from the adhesive-bonded fabric width, and the adhesive-bonded fabric width is conveyed to drying section later, is further taken off in the drying section
Water and so-called thermal consolidating and/or chemical consolidation are carried out in some cases.
The non-uniform humidity cross direction profiles of material roll are obtained during being sucked air load, wherein breadths edge is kept
It is more moistened than remaining material roll.
For the heavier or non-woven fabrics made of different original materials, dehydration efficiency is limited, is formed as a result, corresponding
Bigger for evaporate excess liq energy consumption and reduce machine speed.In addition, also limit especially for opening and/or
The dehydration efficiency of the non-woven fabrics of perforation.
So far commonly by the dewatering bands in air-breathing gap come a series of disadvantage.Therefore, it destroys or at least adversely shadow
The desired uniform humidity cross direction profiles of adhesive-bonded fabric are rung, such reason is particularly due to the non-constant width of material roll
Cause the air loss of material roll edge.The air loss of material roll edge also brings higher energy consumption.According to single side face
The difference of product weight, non-woven fabrics composition and adhesive-bonded fabric width structure, such as the adhesive-bonded fabric width can be structuring or wear
Hole, limit the adhesive-bonded fabric width dry weight content that dehydration obtains later.Because of relatively high vacuum, in relevant conveyer belt
It is upper (by the conveyer belt make adhesive-bonded fabric width be directed through air-breathing gap and the conveyer belt be usually webbing, forming net or
By nonwoven fabric construct and/or perforation structured band) it will produce since so-called " fiber, which is grabbed, to be pulled out (Faserrupfen) " makes
At fiber loss.The fiber grabbed loads in waste water and is loss for manufacturing process.
For example it is known that in order to give the dehydration of adhesive-bonded fabric width to use shoe press from DE102006042507A1.It is this
Although shoe press has and (compares roller gap) extended press nips or squeezing gap in the observation of width traffic direction.But by
In the relatively high squeeze pressure of shoe press, the ponding that can be interfered before the press nips of shoe press.This
Outside, the relatively high squeeze pressure of shoe press causes the reduction of non-woven fabrics volume.
Invention content
Therefore, the technical problem to be solved by the invention is to provide a kind of method of the type mentioned at the beginning and equipment, lead to
Foregoing problems can be solved in a manner of as simple and reliable as possible by crossing this method and equipment.Here, should realize established
Adhesive-bonded fabric width is especially effective and low-cost dehydration, this dehydration cause to have as big as possible in the case where avoiding ponding
The adhesive-bonded fabric width of volume and uniform humidity cross direction profiles.The structure and/or table that non-woven fabrics generates during being formed in former
Face parameter should be retained during subsequent further material roll dehydration, and output aggregate volume should be as possible by not described
The limitation being further dehydrated.Even if until breadths edge humidity cross direction profiles as uniform as possible are especially in the adhesive-bonded fabric of perforation
It should also be as being guaranteed.The shoe press using air-breathing gap and consuming is being avoided, which, which should be ensured that, to the greatest extent may be used
Can big water separation capability, as the equipment it is especially needed for remove bigger, for example in spun lacing reinforcing process be introduced into breadth
Amount of liquid, and have structure as compact as possible.In addition it is also possible to by the way that existing machine is transformed as simply as possible come real
Now press the solution of the present invention.
By the present invention, the technical problem is by a kind of method for manufacturing non-woven fabrics and one kind for implementing the method
Equipment to manufacture non-woven fabrics solves.
Therefore for method, which solves particularly by the method for manufacturing non-woven fabrics, wherein is being molded
Non-woven fabrics is formed in device, and then the adhesive-bonded fabric width being consequently formed further is dehydrated.Here, being further dehydrated to adhesive-bonded fabric
Include the dehydration by belt press section, wherein belt press section has roller, (in order to form extended press nips or pressure
Squeezing gap) at least one inside expelling belt sticked on roller and external expelling belt wrap the roller (respectively with certain cornerite)
Cylinder, wherein adhesive-bonded fabric width is at least arranged in the range of roller between internal expelling belt and external expelling belt.Expelling belt
(in order to generate the pressure of machinery on the adhesive-bonded fabric width between two expelling belts) should be forced at least band of 15kN/m
Tight roller, thus to press against the inside expelling belt of adhesive-bonded fabric width and contact roller on roller.In addition, non-woven fabrics at
It is formed in type device on circular conveyer belt, the adhesive-bonded fabric width being consequently formed at least is directed to belt press section by conveyer belt
And it is directed through its extended press nips.The expelling belt of belt press section is preferably circular or for no reason as conveyer belt
Headband, (extended) squeezing which is jointly directed through belt press section with adhesive-bonded fabric width are pressed
Area.
The equipment by the present invention for being particularly designed for implementing in the present inventive method includes correspondingly being used to form nothing
The belt press section that the former of woven fabric and adhesive-bonded fabric width for making to be formed by established non-woven fabrics are further dehydrated.
Here, belt press section includes roller, at least one inside expelling belt sticked on roller and external expelling belt wrap the roller
Cylinder.Adhesive-bonded fabric width can at least be arranged in the range of roller and is arranged between internal expelling belt and expelling belt.Here, pressure
Press belt is compressible and preferably compress roller with the band stress of at least 15kN/m.In addition, non-woven fabrics is formed in circular conveyer belt
On, the adhesive-bonded fabric width being consequently formed at least is directed to belt press section by the conveyer belt and is directed through its (extended)
Press nips.
Within the scope of the invention, non-woven fabrics is interpreted as the fiber fleece of the low-density obtained directly through molding, and
Adhesive-bonded fabric is understood to have had certain or relatively highdensity non-woven fabrics.
The band stress of external expelling belt within the scope of the invention (with the concept is general in the art uses one
Cause) quotient of the width of tensile stress divided by expelling belt that is interpreted as being applied on expelling belt.
In addition, press nips are interpreted as a kind of gap within the scope of the invention, which is formed in belt press section
Between internal band and external belt, to make external expelling belt compress roller with the band stress of at least 15kN/m.
Since this of this method and equipment organization plan obtain, established adhesive-bonded fabric width is more efficient on the whole, cost
Less expensive dehydration, wherein avoiding the ponding occurred before press nips especially related with shoe press so far
In the case of, the volume of Manufactured adhesive-bonded fabric width (compared to shoe press is used) bigger is realized, because in belt press section
Extended press nips in pressure be less than pressure in the press nips of shoe press.But due to (comparing and using boots
Formula squeezer) longer residence time ensure that although squeeze pressure smaller with high dehydration adhesive-bonded fabric width in the nip
Effective dehydration of rate.Due to higher dehydration rate, heated drying device set also after belt press section when necessary, such as
TAD (hot wind impingement drying)-or air dry-set only need very small energy.In addition, in the present invention by being used
Belt press section compare the method that is known from the state of the art realize it is very economical and non-for the surface of adhesive-bonded fabric width
Often uniform dehydration, to reliably prevent the adverse effect to fibre structure or even damage.Thus also by fiber loss
And contaminated wastewater is restricted to minimum.In addition, by the present inventive method or equipment is also obtained for established non-woven fabrics
Improved humidity cross direction profiles.The particularly advantageous relatively more compact construction for especially still pressing present device, by this
Equipment can also save the shoe press of necessary getter device and consuming so far.In addition, existing by being correspondingly transformed
Machine can also particularly simply realize by the present invention solution.
In addition, the present invention can realize, to the end especially by the adhesive-bonded fabric width transfer with higher dry weight content
It is to which thereby enhance the machine accessibility in drying section on heated drying device.Due to the pressure reduced in belt press section
The volume of power, adhesive-bonded fabric width reduces not more than 10% in dehydration.Therefore, adhesive-bonded fabric width with the relevant dry weight of water content
Content is commonly improved by the dehydration in air-breathing gap with the degree more than 10% compared to current, obtains higher production as a result,
Ability reduces energy consumption and avoids providing drying device that is additional or more expending.
Non-woven fabrics is formed on circular conveyer belt and the adhesive-bonded fabric width being consequently formed at least is led by the conveyer belt
It leads to belt press section and is directed through its extended press nips, wherein non-woven fabrics is at least directed to belt press section
It after press nips, guides to closed traction preferably on a moving belt, has especially to go out in the present inventive method as a result,
The machine accessibility of color.In addition, thus reliably avoiding the quality of established non-woven fabrics due to caused by open traction
Damage, such as undesirable rupture especially in the undesirable stretching of nonwoven webs and/or formation nonwoven webs, i.e., especially in nothing
Textile fabric width is directed through with higher speed after equipment.It is preferred that adhesive-bonded fabric width is closed in the present inventive method
Traction ground is directed through belt press section to the heated drying device for being placed on belt press section from former.
By a kind of preferred form of implementation of the present invention, established non-woven fabrics is also reinforced on a moving belt, later the nothing
Woven fabric is transported to belt press section.In the form of implementation, the reinforcing of established non-woven fabrics preferably includes to reinforce using spun lacing
The reinforcing of method.
Moreover it is preferred that adhesive-bonded fabric width is directed through heated drying device in belt press section downstream, i.e., particularly preferably
By TAD (" hot wind impingement drying ") or air dry-set, contain so that adhesive-bonded fabric width is dried to desired final dry weight
Amount.
There is the especially unique TAD drying drums of only one using preferably no more than one in form of implementation above-mentioned
TAD or air dry-set as heated drying device.Here, the diameter of this TAD drying drums is advantageously below 4m, preferably
Less than 3.5m and particularly preferably less than 3m.
Related advantage is guided while the closed traction of aforementioned and breadth is realized for especially big degree, in implementation above-mentioned
It is particularly preferred that adhesive-bonded fabric width is more than belt press section up to heated drying device by conveyer belt guiding and leads in form
Tying-in crosses the heated drying device.
By another complete particularly preferred form of implementation of the present invention, permeable drying fluid and preferred air are used
And/or band of the permeable belt of vapor as belt press section, and while adhesive-bonded fabric width compresses roller, make drying
Fluid is squeezed through permeable belt, i.e., the permeable belt including conveyer belt and by adhesive-bonded fabric width, i.e., preferably logical
The pressure difference generated accordingly between roller and external expelling belt is crossed to be squeezed.Here, the roller design of belt press section has
The surface of opening is to discharge or accommodate drying fluid.By preferably additionally loading nothing with drying fluid in belt press section
Textile fabric width still further increases efficiency that is economic and being uniformly dehydrated, without being damaged in terms of volume.
Moreover it is preferred that it is at least one wrapping belt press section roller (Endless) band for water it is permeable or
Person is designed to absorb water, to allow in belt press section during the mechanical expression occurred the water accumulated to be absorbed and/or
It penetrates.
Suggest in by the extension of present invention design, adhesive-bonded fabric width leads in the extended press nips of belt press section
Drying fluid is crossed to apply heat and/or for example apply heat by least one band of roller and/or belt press section separately from it.
In principle, each inert gas or aerosol can be used as drying fluid, wherein especially by air and/
Or vapor realizes preferable effect.
If using air as drying fluid, it can have such as environment temperature.It is alternative as it, it can also use
Hot-air, i.e. preferred range are at 50 DEG C to 250 DEG C, particularly preferred 150 DEG C to 250 DEG C, and particularly preferred 175 DEG C completely extremely
In 225 DEG C, such as about 200 DEG C of hot-air is as drying fluid.
If using vapor as drying fluid, the vapor is preferably according to no more than 2kg steam/kg adhesive-bonded fabric width
Propylene weight/adhesive-bonded fabric width weight ratio and preferably according to propylene weight/nothing of 0.1 to 1kg steam/kg adhesive-bonded fabric width
Textile fabric width weight ratio, such as make according to propylene weight/adhesive-bonded fabric width weight ratio of about 0.5kg steam/kg adhesive-bonded fabric width
With.
As described, it is preferred that in belt press section while machinery applies pressure, drying is squeezed by adhesive-bonded fabric width
Fluid, wherein the roller design of belt press section has open surface to discharge or accommodate drying fluid.Here, using
The especially roller of suction roll or air blast roller as belt press section.
If the roller of belt press section is designed to that suction roll, drying fluid suitably at least lead to since drying fluid cover
It crosses permeable external expelling belt, conveyer belt, adhesive-bonded fabric width and permeable internal expelling belt and is inhaled into or directs into suction
In roller.In addition to drying fluid, the water taken off in belt press section is also suitably sucked or is directed into suction roll or permeable
In internal expelling belt.For this purpose, it is preferably applied to 0.25bar to 0.6bar to suction roll, particularly preferred 0.30 to 0.55bar
In the range of negative pressure, for example, about 0.45bar (also that is, in atmospheric pressure and the difference being formed between the pressure in suction roll).
If the roller of belt press section is designed to suction roll, a kind of preferred structure scheme in the present inventive method, packet
Observed on the flow direction of drying fluid around the band of roller include permeable expelling belt, preferably be additionally operable to reinforce conveyer belt
And felt.
If the roller of belt press section is designed to air blast roller, drying fluid is preferably since air blast roller at least through can ooze
Saturating inside expelling belt, adhesive-bonded fabric width, conveyer belt and permeable external expelling belt is preferably blown into or directs into cover.In addition to
Outside drying fluid, suitably can also the water that sloughed in belt press section be blown into or be imported cover or permeable external expelling belt
In.In the form of implementation of the present invention, it is preferred that have above atmospheric pressure, 0.25bar to 0.6bar is especially excellent
It selects within the scope of 0.30bar to 0.55bar, for example, about the drying fluid of the pressure of 0.45bar passes through permeable internal squeezing
Band, adhesive-bonded fabric width and permeable external expelling belt are blowed to cover.
If adhesive-bonded fabric width in belt press section-as it is aforementioned preferably, as stressed supplement is applied, also apply dry
Dry fluid, the then pressure being applied on adhesive-bonded fabric width are also related with drying fluid flowing.It is particularly preferred, economical in order to realize
And uniform dehydration, to the suggestion of this form of implementation, is generated by band in 100m in the extension design of the present invention3/(min m2)
To 300m3/(min m2), preferably 150 to 250m3/(min m2), particularly preferably about 210m3/(min m2) dry stream in range
Body flows.
When belt press section roller other than being wrapped by inside and outside (Endless) band and conveyer belt also by one or
When multiple others (Endless) expelling belt wrappings, if it has been observed that it is particularly preferred that by this drying in belt press section
Fluid is applied to adhesive-bonded fabric width, then these other (Endless) expelling belts must also can penetrate drying fluid.
In order on the one hand realize sufficiently high dehydration rate, implements as economic as possible and uniform dehydration but then, press
Form of implementation specifically preferred according to the invention regulation, in the method, be at least used as outside (Endless) band of expelling belt with 0 to
100kN/m, preferably 25 to 75kN/m, the roller that belt press section is compressed with stress of particularly preferred 40kN/m to 50kN/m.
In order to good enough, but for as economic as possible simultaneously and uniform dehydration, it may be particularly advantageous to, it is squeezed in belt
140kPa, especially less than 100kPa, preferably smaller than 90kPa will be less than in portion, but be more than 30kPa, the preferably greater than machine of 45kPa
Tool pressure is applied on adhesive-bonded fabric width.By this small pressure, occurring the case where ponding in avoiding shoe press, it is real
The volume of the especially bigger of existing non-woven fabrics, because since small pressure will not make non-woven fabrics significantly be compacted and therefore not formed bright
Aobvious Volume Loss.
For the purposes of good enough but as economic as possible simultaneously and uniform dehydration, suggest in the extension design of the present invention,
Stop of the adhesive-bonded fabric width in the extended squeezing gap of belt press section is set as between 0.05 second to 0.5 second.Pass through
This relatively long residence time, although the corresponding economic processing of smaller pressure and adhesive-bonded fabric width, ensure that effectively
Dehydration.
By a kind of particularly preferred form of implementation of the present invention, adhesive-bonded fabric width is dehydrated at least in belt press section
20%, preferably 30 to 75%, particularly preferred 33 to 50%.Here, the dehydration rate indicates exist in belt press section before dehydration
Total adhesive-bonded fabric width weight dehydration when percent weight loss.
It is advantageous in the case where some are determined if established non-woven fabrics has been reinforced before being transported to belt press section
, be transmitted with wrapping reinforcing roller in the range of and/or directly on a moving belt without reinforce roller in the range of
The pre-reinforcement non-woven fabrics, then preferably additionally post-reinforcing (reinforces) non-woven fabrics again in other words, wherein it is each reinforce preferably according to
Spun lacing method for strengthening carries out.That is, relevant equipment may include one or more bracing means.Here, designed for pre-
Bracing means reinforcing and/or for reinforcing device respectively includes only one or multiple, and preferably two for causing to reinforce
Water jet nozzle.
But established non-woven fabrics can not also use post-reinforcing only pre-reinforcement, this is enough in the case where some are determined
's.
It also will be advantageous that in the case where some are determined, reinforced without spun lacing.
By the present invention a kind of preferred organization plan, using webbing or the dewatering bands equipped with porous surface as transmit
Band.It is advantageous especially, using flat or using adhesive-bonded fabric width corresponding construction and/or punching band as conveyer belt.
Advantageously, it is seen after the last one reinforcing step and before belt press section in width traffic direction, it is excellent
The conveyer belt for gating structuring is mechanically dehydrated to adhesive-bonded fabric width.
Because smaller mechanical pressure is applied on adhesive-bonded fabric width by belt press section, shoe pressure is being avoided
The non-woven fabrics volume of bigger is especially realized in the case of the ponding occurred in crusher, before since small pressure non-woven fabrics will not be bright
Aobvious compacting and therefore no apparent Volume Loss.
It will be advantageous that in the case where some are determined, belt press section is equipped with (Endless) pressure of only two wrapping rollers
Press belt and conveyer belt, and adhesive-bonded fabric width is contiguously arranged in the two (Endlesses) pressure with the two (Endless) expelling belts
Between press belt.In this case, internal (Endless) band and conveyer belt contact adhesive-bonded fabric width.
In form of implementation alternative therewith, belt press section is also provided with other than inside and outside (Endless) band
At least one other (Endless) band that roller is wrapped with predetermined cornerite.Here, it is at least one other (for no reason
Head) band is especially externally arranged between expelling belt and conveyer belt.
It is preferred that (Endless) band of the roller of wrapping belt press section includes at least one felt and/or webbing.Herein
Particularly advantageously, using felt as inside (Endless) band of the roller of wrapping belt press section.Also particularly suitable feelings
Condition is that adhesive-bonded fabric width is flowed by drying fluid simultaneously in belt press section and be used as suction roll the roller of belt press section
Cylinder.By the dehydration acquisition ratio in felt such as by the apparent humidity cross direction profiles evenly of dehydration of suction box.In addition,
Fiber loss is decreased by being dehydrated on felt.
Especially in this case, i.e., preferably apply drying fluid, institute to adhesive-bonded fabric width simultaneously in belt press section
There is (Endless) band of the roller of wrapping belt press section permeable or design with can penetrating for drying fluid.
It is furthermore preferred that (Endless) band of the roller of at least one wrapping belt press section is permeable for water, with
Just allow in belt press section in the mechanical expression occurred the water accumulated that can penetrate or the roller of at least one wrapping belt press section
(Endless) band be designed to that it is allow to absorb water, to absorb the water accumulated in the mechanical expression occurred in belt press section.
Using the molding band of for example at least substantially smooth band and preferred smooth as the external squeezing of belt press section
Band.
If excellent by one kind of the present invention by manufacturing structured in the present inventive method and/or perforation non-woven fabrics
The form of implementation of choosing provides that at least one contact adhesive-bonded fabric width, belt press section (Endless) band is designed to structuring
Band makes adhesive-bonded fabric width corresponding construction and/or perforation by structured band.The structured band especially can be conveyer belt and/
Or external expelling belt.
(Endless) band of belt press section suitably wraps roller on identical cornerite.
Cornerite with each band is equal or unequal unrelated, is suggested in the extension design of the present invention, inside squeezing
The cornerite of band and/or external expelling belt wrapping roller is at 90 ° to 180 °, in the range of especially 100 ° to 120 °.Be achieved in for
Needed for sufficiently large and economic simultaneously, uniform dehydration, adhesive-bonded fabric width stops in the squeezing gap of belt press section
Stay the time.It is applicable in principle, for identical roller diameter and identical roller rotary speed, adhesive-bonded fabric width exists
The residence time squeezed in gap is bigger, then the cornerite of band is also bigger.
Another particularly advantageous organization plan in the present inventive method, the diameter of the roller of belt press section exist
In the range of 500mm to 1400mm, preferably in the range of 750mm to 1200mm.Because being applied to nothing in belt press section
Pressure on textile fabric width is also related with the cornerite of (Endless) band and the diameter of roller of belt press section, so by this
Bigger diameter obtains long press nips and phase squeezing the residence time longer in gap due to adhesive-bonded fabric width
It should efficiently be dehydrated.It is applicable in principle, for identical band cornerite and identical roller rotary speed, adhesive-bonded fabric
Residence time bigger bigger of the width in squeezing gap, then roller diameter is bigger.
Between belt press section and heated drying device, adhesive-bonded fabric width is directed through additional dewatering press when needed
Machine.In this optional additional dehydration squeezer, preferably generate in 20kN/m to 100kN/m, particularly preferred 50kN/m is extremely
Linear force within the scope of 90kN/m, it is economical and uniform to realize, but a large amount of dehydration.
It has been observed that providing that adhesive-bonded fabric width is preferred by another completely particularly preferred form of implementation of present device
By the closed traction of conveyer belt belt press section and preferred heated drying device are transported to from former.Here, adhesive-bonded fabric
Width from former be transported to belt press section or up to its postposition heated drying device can only by this conveyer belt realize.
As described, non-woven fabrics can also be formed on conveyer belt in former.Conveyer belt is i.e. while as forming net.It is preferred that in the transmission
On the net, as having been mentioned, non-woven fabrics reinforcing is also carried out, non-woven fabrics reinforcing may include especially spun lacing reinforcing.If nothing
The closed traction ground of textile fabric is at least directed to belt press section, however it is also possible that saving spun lacing reinforcing.
Preposition in the former of belt press section, non-woven fabrics is especially also with relatively low density in smooth molding
Net or structuring, make to constitute on non-woven fabrics corresponding construction and/or the forming net of punching, which has relative to gained
The dry weight content of 0.01 to 0.1 weight % of 100% weight of the non-woven fabrics arrived.
Here, can in former by each for method known to those skilled in the art, i.e., preferably by dry
Method, wet method and/or extrusion molding form non-woven fabrics.
For example, forming non-woven fabrics according to wet method at least partly in former, wherein fiber is especially suspended in water
And it is laid on the bottom of water permeable.
Additionally or alternatively, non-woven fabrics aerodynamics also can be formed at least partly in former.Here,
Non-woven fabrics is formed in by air stream on ventilative bottom by the lay of fiber.
Additionally or alternatively, non-woven fabrics can also be mechanically formed at least partly in former.Here, the nonwoven
Cloth is formed by the web being stacked removed from fluffing machine or combing machine for fur or is formed by carding machine at least partly.
Additionally or alternatively, non-woven fabrics can also be formed according to so-called spun-bond process at least partly, wherein pass through paving
It puts fiber and forms non-woven fabrics, the fiber is drawn by the polymer melt spinneret across nozzle and by cold air and/or machinery
It stretches.
Additionally or alternatively, non-woven fabrics can be last at least partly also by so-called meltblown method shape in former
At.Here, by lay down fibre formed non-woven fabrics, the fiber directly by the polymer melt spinneret across nozzle and by
Stream of hot air is stretched until fracture.
In principle, it is possible to not only by one of preceding method in former, but also especially also by two or more institutes
The arbitrary combination for stating method forms non-woven fabrics.
As described, then for example established non-woven fabrics is reinforced into adhesive-bonded fabric width by spun lacing method for strengthening.In the party
In method, the winding realized by eddy deformation by fiber reinforces established non-woven fabrics at adhesive-bonded fabric width, and mode is especially
It is on the High Pressure Water Jet to the non-woven fabrics concentrated.Advantageously, non-woven fabrics can be applied by water jet and also be tied simultaneously
Structure and/or perforation.However water jet reinforcing is not compulsory, and especially for example pass through only one in non-woven fabric web
What conveyer belt can be dispensed with when being guided in the closed traction to as little as belt press section.
Preferably, if in former and/or in spun lacing reinforcing process caused by structuring on a moving belt and/
If or perforation and adhesive-bonded fabric width are at least directed to belt press section by the conveyer belt and are directed through its extended squeezing
Pressure area then ensures each structure or remaining unchanged of perforation.
Charging in former can be made of natural fiber at least partly with i), preferably bleached sulphate softwood pulp
(NBKP), bleached sulphate hardwood pulp (LBKP), the fiber that is obtained by abaca or cotton, ii) at least partly by artificial
Fiber forms, preferably viscous fibre, iii) be made of at least partly synthetic fibers, preferably polyester or polyamine, iv) at least partly by
Mineral fibres forms, preferred glass fibre, v) be made of at least partly carbon fiber and/or vi) by the mixed of arbitrary previous materials
Close object composition.
Here, the charging in former can be advantageously at least partly by being longer than 2mm, preferably longer than 3mm, particularly preferably
It is longer than the fiber composition of 4mm.
Charging in former especially can also include fiber material and/or staple fiber containing wood pulp.Here, by average length
For 400 to 100mm but the natural fiber that is longer than 1cm always be referred to as staple fiber.
By the another preferably with suitable organization plan of the present invention, generating has in 10g/m2To 1200g/m2In range
Weight per unit area adhesive-bonded fabric width.
Finally, i.e., after the last one drying steps, if if use after non-woven fabrics needs, non-woven fabrics can be with
Thermal consolidating and/or chemical consolidation.
By a kind of completely particularly preferred form of implementation regulation of the present invention, (Endless) band of belt press section is designed to
(Endless) band of permeable drying fluid, preferably air permeable and/or vapor so that press against roller in adhesive-bonded fabric width
While on cylinder or while applying mechanical pressure to adhesive-bonded fabric width by belt press section, preferably by roller and outside
Pressure difference between portion's expelling belt can allow drying fluid to penetrate permeable (Endless) band and adhesive-bonded fabric width.
Moreover it is preferred that (Endless) band of the roller of at least one wrapping belt press section is permeable for water, with
Just the water accumulated is allowed in the mechanical expression occurred in belt press section to penetrate or the roller of at least one wrapping belt press section
(Endless) band of cylinder is designed to that it is allow to absorb water, is accumulated in the mechanical expression occurred in belt press section to absorb
Water.
All preferred implementing forms above-mentioned are same (it is still unrelated into description equipment that method is clearly only described with it)
It is not only suitable for being also applied for the equipment by the present invention in the present inventive method.
Description of the drawings
It is following to further describe the present invention with reference to attached drawing and according to embodiment.
Unique attached drawing is the schematic diagram by the equipment for manufacturing non-woven fabrics of the present invention.
Specific implementation mode
In Fig. 1 it is pure schematically show for manufacture the equipment 60 of non-woven fabrics to include being used for what reference numeral 28 only indicated
Form the former of non-woven fabrics and the band for being further dehydrated to the adhesive-bonded fabric 52 being made of established non-woven fabrics
Formula press section 34.
Non-woven fabrics is formed in former 28 according to the arbitrary combination of non-woven fabrics forming method or different this methods.
This, it can especially be formed by dry method, wet method and/or extrusion molding.
Established non-woven fabrics for example adds by least one (such as two in the present embodiment) bracing means 18,20
Gu the bracing means 18,20 preferably works according to spun lacing method for strengthening and for example respectively includes two nozzles herein.From following
Content is it is found that spun lacing bracing means is not to be all enforceable in each case.Then the adhesive-bonded fabric width reinforced is given
52 further dehydrations.
Belt press section 34 includes roller 36, at least one inside expelling belt 40 sticked on roller 36 and external squeezing
Band 42 wraps roller 36, thus to obtain extended squeezing gap or press nips 12 on width traffic direction L.
Adhesive-bonded fabric 52 is at least jointly guided with internal expelling belt 40, conveyer belt 10 and external expelling belt 42 therebetween
Pass through the extended press nips 12 of belt press section 34.
Expelling belt 42 compresses roller 36 with the band stress of at least 15kN/m.Non-woven fabrics is formed in circular in former 28
On Endless conveyer belt 10, the adhesive-bonded fabric 52 being consequently formed at least is directed to belt press section 34 simultaneously by the conveyer belt 10
And it is directed through its extended press nips 12 and is preferably directed to the heated drying device only indicated with reference numeral 46.
As indicated, established non-woven fabrics can jointly travel through such as two bracing means 18 with conveyer belt 10,
20.Here, the first bracing means 18 observed on width traffic direction L is used for pre-reinforcement, subsequent second bracing means 20 is used
In post-reinforcing non-woven fabrics.Pre-reinforcement and post-reinforcing are respectively happened on conveyer belt 10, then will have been reinforced by the conveyer belt
Adhesive-bonded fabric 52 be at least directed to belt press section 34 and be jointly directed through its extended pressure with expelling belt 40,42
Area 12 is squeezed, hot drying equipment 46 is then preferably further directed to.
In 34 downstream of belt press section, adhesive-bonded fabric 52 is jointly directed through heated drying device 46 with conveyer belt 10.
Here, the heated drying device may include especially TAD (" hot wind impingement drying ") or air dry-set.It is preferably provided with few
In this TAD or air dry-set with preferred only one TAD rollers.
The band 40,42 and conveyer belt 10 of belt press section 34 be preferably designed to permeable drying fluid and preferred air and/
Or the permeable belt 40,42,10 of vapor so that while adhesive-bonded fabric 52 presses against roller 36, drying fluid can be with
Permeable belt 40,42, conveyer belt 10 and adhesive-bonded fabric 52 are penetrated by the pressure difference between roller 36 and external expelling belt 42.
Here, the design of roller 36 of belt press section 34 has the open surface for discharging or accommodating drying fluid.
It is furthermore preferred that the Endless band 40 of the roller of at least one wrapping belt press section, 42 is permeable for water,
To allow in belt press section 34 during the mechanical expression occurred the penetration by water accumulated or at least one wrapping belt press section
The Endless band 40,42 of roller be designed to that it is allow to absorb water, so as to absorb the machinery occurred in belt press section 34
The water accumulated in expressing process.
Belt press section 34 especially passes through it can be designed so that obtaining adhesive-bonded fabric 52 in its extended press nips 12
Drying fluid and/or for example by roller 36 and/or it is directed through the expelling belt of its extended press nips 12 separately from it
One of apply heat.
In an illustrated embodiment, (in addition to expelling belt 40, circular Endless outside expelling belt inside circular Endless
42 and circular Endless conveyer belt 10 except) another circular Endless band 50 jointly guides with adhesive-bonded fabric 52
Pass through the extended press nips 12 of belt press section 34.Here, another circular band 50 is located in press nips 12
Between conveyer belt 10 and external expelling belt 42.It is guided on conveyer belt 10 to press nips 12 and is directed through the squeezing pressure
The adhesive-bonded fabric 52 in area 12 is located between conveyer belt 10 and internal expelling belt 40 and is directed through press nips 12.
It is preferred that as described, adhesive-bonded fabric 52 is with the jointly closed traction of the same conveyer belt 10 from former 28
Start, be directed through bracing means 18,20, belt press section 34 when necessary and last be directed to heated drying device 46.
External rings as expelling belt around, the Endless band 42 of belt press section 34 encloses with the band stress of at least 15kN/m
It is tensioned around roller 36 or compresses the roller 36, so as on the adhesive-bonded fabric width between two Endless expelling belts 40,42
Generate mechanical pressure.Pass through the expelling belt 42, adhesive-bonded fabric 52, conveyer belt 10 and the inside Endless band 40 for contacting roller 36
It presses against on roller 36.
As described, preferably apply the same of mechanical pressure to adhesive-bonded fabric 52 in the expelling belt 42 by belt press section 34
When so that drying fluid is squeezed through Endless band 40,42, conveyer belt 10, another band 50 and adhesive-bonded fabric 52, that is, pass through
The pressure difference generated between roller 36 and external expelling belt 42 is squeezed.To realize this squeezing, Endless band 40,42 and
Conveyer belt 10 and another Endless band 50 permeable drying fluid in the case of this form of implementation, that is, for drying fluid
It can penetrate.
Especially air or vapor can be used as drying fluid, wherein can be with the air in use environment temperature
Or hot-air is as dry air.
Here, the roller 36 of belt press section 34 is designed to especially suction roll or air blast roller.In the case of suction roll,
By drying fluid at least through permeable external Endless band 42, conveyer belt 10, adhesive-bonded fabric width since drying fluid cover
It sucks or is directed into suction roll with permeable internal Endless band 40.
In the case of air blast roller, by drying fluid at least through permeable internal Endless band since air blast roller
40, conveyer belt 10, adhesive-bonded fabric width and permeable external Endless band 42 are blown into or direct into cover.
The Endless band 40,42,50 of the roller 36 of wrapping belt press section 34 preferably includes at least one felt and/or extremely
A few webbing.Herein, it is particularly possible to which inside Endless band of the felt as the roller 36 of wrapping belt press section 34 is provided
40。
For example at least substantially smooth band can be used, especially smooth molding band is as the outer of belt press section 34
Portion's Endless band 42.
In the case where some are determined advantageously, at least one contact adhesive-bonded fabric width, belt press section 34 nothing
End band 40,42 is designed to the band of structuring, and the band changed with this configuration makes adhesive-bonded fabric width correspondingly structuring and/or wear
Hole.
The Endless band 40,42,50 of belt press section can wrap roller 36 particularly by identical cornerite.
In heated drying device 46, adhesive-bonded fabric 56 is dried to especially final dry weight content.
In former 28, non-woven fabrics can with low-density smooth forming net or structuring, make non-woven fabrics phase
Answer ground structure and/or the forming net of perforation, preferably constituted on conveyer belt 10, the non-woven fabrics have especially 0.01 to
0.1% dry weight content.
It can also be same by least one bracing means 18,20 especially to work according to spun lacing method for strengthening provided when necessary
When make nonwoven fabric construct and/or perforation.Therefore, this spun lacing bracing means 18,20 is especially in non-woven fabrics or adhesive-bonded fabric width
52 to be attached ground structure and/or perforation in the case of be preferred.
Charging 28 in former can be made of natural fiber at least partly with i), such as especially bleached sulphate needle
Wood pulp (NBKP), bleached sulphate hardwood pulp (LBKP), the fiber or the like obtained by abaca, cotton, ii) at least portion
Ground is divided to be made of staple fibre, such as especially viscous fibre or the like, iii) it is made of at least partly synthetic fibers, such as especially gather
Ester, polyamine or the like, iv) be made of at least partly mineral fibres, such as especially glass fibre or the like, v) at least portion
Point ground be made of carbon fiber and/or vi) be made of the mixture of arbitrary previous materials.
Advantageously, the charging 28 in former is particularly preferably longer than at least partly by being longer than 2mm, preferably longer than 3mm
The fiber of 4mm forms.
As described, spun lacing reinforcing is not compulsory.But the spun lacing is reinforced especially in this form of implementation it can be stated that nonwoven
Additionally structuring and/or the perforation of webs 52.This structuring or perforation can also be by working according to spun lacing method for strengthening
Bracing means 18,20 carries out.In addition, belt press section 34 especially can also make 52 structuring of adhesive-bonded fabric equipped at least one
And/or the structure band of perforation, the structure band correspondingly wrap roller 36 again.Especially conveyer belt 10 can be designed to make on-woven
52 structuring of object and/or punching structure band.
By in the case of this form of implementation, non-woven fabrics is formed on the conveyer belt 10 as forming net same
And it is directed through belt press section 34 and is directed to heated drying device 46, obtain on the whole extremely compact structure.
As described, heated drying device 46 include be preferably no more than one with preferred only one TAD drying drums TAD or
Air dry-set.Here, the diameter of this TAD drying drums is preferably smaller than 4m, preferably smaller than 3.5m, particularly preferably less than
3m。
Each pre-reinforcement can when necessary, as according to shown in bracing means 18, in the reinforcing roller 16 wrapped by conveyer belt 10
In the range of and/or directly carry out in the range of on conveyer belt 10 in no reinforcing roller.This form of implementation the case where
In, post-reinforcing directly is carried out in the range of on conveyer belt 10 in no reinforcing roller, as by shown in bracing means 20.In advance
Reinforcing is not to be required under any circumstance.In the case where some are determined, the pre-reinforcement of post-reinforcing is not with regard to enough.
In order to further increase dehydration efficiency, the last one bracing means 20 and belt pressure especially on width traffic direction L
It is additionally provided with dehydration device between squeezing portion 34, for being mechanically dehydrated to adhesive-bonded fabric 52 by the conveyer belt 10 of structuring.It is excellent
The line within the scope of 20kN/m to 100kN/m, preferably 50kN/m to 90kN/m can be generated by being selected in this additional dehydration device
Property power.
Reference numerals list
10 conveyer belts
12 extended press nips
16 reinforce roller
18 first bracing means
20 second bracing means
28 formers
34 belt press sections
36 rollers
40 inner loops are around band
42 external rings are around expelling belt
46 heated drying devices (TAD)
50 another circular band
52 adhesive-bonded fabric width
60 equipment
L width traffic directions
Claims (24)
1. a kind of method for manufacturing non-woven fabrics, wherein form non-woven fabrics in former (28), wherein will be established
The non-woven fabrics is reinforced on conveyer belt (10), the non-woven fabrics is transported to belt press section (34) later, wherein formed
The reinforcing of non-woven fabrics include being kept away according to the reinforcing of spun lacing method for strengthening, and by the adhesive-bonded fabric width (52) being consequently formed
Exempt from further to be dehydrated in the case of using shoe press, wherein the further dehydration of the adhesive-bonded fabric width (52) includes borrowing
The dehydration of belt press section (34) is helped, the belt press section (34) includes roller (36), at least one to stick on roller (36)
On inside expelling belt (40) and external expelling belt (42) surround the roller (36), wherein the adhesive-bonded fabric width (52) is extremely
It is few to be arranged in the region of the roller (36) between the internal expelling belt (40) and the external expelling belt (42),
In, the external expelling belt (42) is with the band stress compression roller (36) of at least 15kN/m and thus by the adhesive-bonded fabric
Width (52) and the internal expelling belt (40) press against on the roller (36), and wherein, the non-woven fabrics is in the molding
It is formed on circular conveyer belt (10) in device (28), the adhesive-bonded fabric width (52) being consequently formed passes through the conveyer belt
(10) it is at least directed to the belt press section (34) and is directed through the press nips (12) of belt press section.
2. according to the method described in claim 1, it is characterized in that, by the adhesive-bonded fabric width (52) in the belt press section
(34) downstream is directed through heated drying device (46).
3. according to the method described in claim 2, it is characterized in that, the heated drying device (46) is air dry-set.
4. according to the method described in claim 3, it is characterized in that, the heated drying device (46) is that (hot wind penetrates dry TAD
It is dry).
5. according to the method described in claim 4, it is characterized in that, there is only one TAD drying drums by not more than one
The TAD is used as heated drying device (46).
6. according to the method described in claim 5, it is characterized in that, the diameter of the TAD drying drums is less than 4m.
7. according to the method described in claim 6, it is characterized in that, the diameter of the TAD drying drums is less than 3.5m.
8. according to the method described in claim 6, it is characterized in that, the diameter of the TAD drying drums is less than 3m.
9. according to the method described in claim 2, it is characterized in that, by the conveyer belt (10) by the adhesive-bonded fabric width
(52) the belt press section (34) is directed through to the heated drying device (46) and passes through the heated drying device (46).
10. according to the method described in claim 1, it is characterized in that, by the permeable of permeable drying fluid and/or vapor
Band is used as the band of belt press section (34), and is pressed against on the roller (36) simultaneously in the adhesive-bonded fabric width (52), does
Dry fluid is squeezed through permeable belt, conveyer belt (10) and the adhesive-bonded fabric width (52), by the roller (36) and
Corresponding pressure difference is generated between the external expelling belt (42) to be squeezed, wherein the roller of the belt press section (34)
(36) design has open surface, for discharging or accommodating drying fluid.
11. according to the method described in claim 10, it is characterized in that, the drying fluid is air.
12. according to the method described in claim 1, it is characterized in that, will be flat or make adhesive-bonded fabric width (52) corresponding construction
The band of change is used as conveyer belt (10).
13. according to the method for claim 12, which is characterized in that by it is flat or make adhesive-bonded fabric width (52) accordingly punch
Band be used as conveyer belt (10).
14. a kind of be used to implement the method described in any one of claim 1 to 13 to manufacture the equipment (60) of non-woven fabrics, described
Equipment has the former (28) for being used to form non-woven fabrics and the adhesive-bonded fabric width for will be formed by established non-woven fabrics
(52) the belt press section (34) being further dehydrated, wherein the belt press section (34) includes roller (36), at least one patch
It leans against the inside expelling belt (40) on the roller (36) and external expelling belt (42) surrounds the roller (36), the on-woven
Object width (52) is at least arranged in the internal expelling belt (40) and the external expelling belt in the region of the roller (36)
(42) between, the external expelling belt (42) compresses the roller (36) with the band stress of at least 15kN/m, and the non-woven fabrics exists
It is formed on circular conveyer belt (10) in the former (28), the adhesive-bonded fabric width (52) being consequently formed passes through described
Conveyer belt (10) is at least directed to belt press section (34) and is directed through its press nips (12), wherein established institute
It states non-woven fabrics and collectively passes through at least one bracing means (18,20) with the conveyer belt (10), at least one reinforcing
In device (18,20), the established non-woven fabrics is reinforced on the conveyer belt (10), and non-woven fabrics is transported to belt later
Press section (34), wherein at least one bracing means (18,20) includes spun lacing bracing means.
15. equipment according to claim 14, which is characterized in that the adhesive-bonded fabric width (52) is in the belt press section
(34) downstream is directed through heated drying device (46).
16. equipment according to claim 15, which is characterized in that the heated drying device (46) is air dry-set.
17. equipment according to claim 16, which is characterized in that the heated drying device (46) is that (hot wind penetrates dry TAD
It is dry).
18. equipment according to claim 17, which is characterized in that the heated drying device (46) includes a not more than tool
There is the TAD of only one TAD drying drums.
19. equipment according to claim 18, which is characterized in that the diameter of the TAD drying drums is less than 4m.
20. equipment according to claim 19, which is characterized in that the diameter of the TAD drying drums is less than 3.5m.
21. equipment according to claim 19, which is characterized in that the diameter of the TAD drying drums is less than 3m.
22. equipment according to claim 15, which is characterized in that the adhesive-bonded fabric width (52) is by the conveyer belt (10)
Belt press section (34) is directed through to heated drying device (46) and is directed through the heated drying device (46).
23. equipment according to claim 14, which is characterized in that the band of the belt press section (34) is designed to permeable
The permeable belt of drying fluid and/or vapor so that pressed against on the roller (36) in the adhesive-bonded fabric width (52)
Meanwhile by the pressure difference between the roller (36) and the external expelling belt (42) make drying fluid flow through it is described can
Permeable belt, the conveyer belt (10) and the adhesive-bonded fabric width (52), wherein the roller (36) of the belt press section (34) is set
Meter has open surface, for discharging or accommodating drying fluid.
24. equipment according to claim 23, which is characterized in that the drying fluid is air.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013213070 | 2013-07-04 | ||
| DE102013213070.8 | 2013-07-04 | ||
| PCT/EP2014/062620 WO2015000686A1 (en) | 2013-07-04 | 2014-06-17 | Method and apparatus for producing nonwoven material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105452553A CN105452553A (en) | 2016-03-30 |
| CN105452553B true CN105452553B (en) | 2018-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480043943.0A Active CN105452553B (en) | 2013-07-04 | 2014-06-17 | Method and apparatus for manufacturing non-woven fabrics |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3017105B1 (en) |
| CN (1) | CN105452553B (en) |
| WO (1) | WO2015000686A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996054A (en) * | 2017-03-22 | 2017-08-01 | 仙鹤股份有限公司 | A kind of production method of wood pulp hydro-entangled composite non-woven fabric paper |
| CN109112725A (en) * | 2018-10-17 | 2019-01-01 | 广州市汉氏卫生用品有限公司 | Spunlace non-woven cloth and preparation method thereof |
| CN110616509B (en) * | 2019-09-27 | 2022-01-21 | 俊富非织造材料(肇庆)有限公司 | Novel spun-bonded spunlace non-woven fabric for spring wrapping cloth and preparation method thereof |
| CN112251917A (en) * | 2020-11-02 | 2021-01-22 | 黄淑珠 | Production equipment for textile non-woven fabric |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1504144B1 (en) * | 2002-05-08 | 2012-01-18 | Polymer Group, Inc. | Nonwoven fabrics having intercalated three-dimensional images |
| US20070018364A1 (en) | 2005-07-20 | 2007-01-25 | Pierre Riviere | Modification of nonwovens in intelligent nips |
| DE102005036891A1 (en) * | 2005-08-05 | 2007-02-08 | Voith Patent Gmbh | Machine for the production of tissue paper |
| DE102005039015A1 (en) * | 2005-08-18 | 2007-02-22 | Voith Patent Gmbh | Process for the production of tissue paper |
| US7550061B2 (en) * | 2006-04-28 | 2009-06-23 | Voith Paper Patent Gmbh | Dewatering tissue press fabric for an ATMOS system and press section of a paper machine using the dewatering fabric |
| DE102006042507A1 (en) | 2006-09-07 | 2008-03-27 | Andritz Küsters GmbH & Co. KG | Treatment method for non-woven webs comprises treating them with liquid and then squeezing it out using rollers with wide nip |
| EP1961849A1 (en) * | 2007-02-22 | 2008-08-27 | ALBIS Spa | Pre-consolidated spunbonded web, composite nonwowen comprising said pre-consolidated spunbonded web, method and continuous system for producing said composite |
| DE102008054990A1 (en) * | 2008-12-19 | 2010-06-24 | Voith Patent Gmbh | Apparatus and method for producing a material web |
| DE102011007568A1 (en) * | 2011-04-18 | 2012-10-18 | Voith Patent Gmbh | Apparatus and method for producing a material web |
| CN202865551U (en) * | 2012-10-26 | 2013-04-10 | 福建南纺股份有限公司 | Spunlace dehydration unit |
-
2014
- 2014-06-17 CN CN201480043943.0A patent/CN105452553B/en active Active
- 2014-06-17 EP EP14734031.9A patent/EP3017105B1/en active Active
- 2014-06-17 WO PCT/EP2014/062620 patent/WO2015000686A1/en active Application Filing
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| Publication number | Publication date |
|---|---|
| WO2015000686A1 (en) | 2015-01-08 |
| EP3017105A1 (en) | 2016-05-11 |
| EP3017105B1 (en) | 2017-08-02 |
| CN105452553A (en) | 2016-03-30 |
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