CN107815790A - Apertured nonwoven cloth hot blast shaped device - Google Patents
Apertured nonwoven cloth hot blast shaped device Download PDFInfo
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- CN107815790A CN107815790A CN201710896133.5A CN201710896133A CN107815790A CN 107815790 A CN107815790 A CN 107815790A CN 201710896133 A CN201710896133 A CN 201710896133A CN 107815790 A CN107815790 A CN 107815790A
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- Prior art keywords
- shaped
- woven fabrics
- hot
- hot blast
- cylinder roller
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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
- D04H1/48—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 in combination with at least one other method of consolidation
- D04H1/485—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 in combination with at least one other method of consolidation in combination with weld-bonding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention discloses a kind of apertured nonwoven cloth hot blast shaped device, including a hot-air oven and a cylinder roller, cylinder roller is rotated in setting and hot-air oven, the hot blast from hot-air oven is led to by above-mentioned some mesh in cylinder roller and hot-air oven inner recirculation flow, and then cause the non-woven fabrics fiber net sizing for being carried on cylinder roller and being formed plug-in unit shaping.Shaped insert in the present invention due to cylinder cylinder surface is arranged at cylinder cylinder wall face by buckle, bolt or viscose, so in the event of the fracture of a small number of Shaped inserts, bending, or Shaped insert is distributed when being somewhat adjusted, as long as change or the Shaped insert of adjustment minority achieves that, maintenance or the replacement cost of mould are greatly reduced, maintenance is also saved or makes the time of new mould.
Description
Technical field
The invention belongs to non-woven fabrics field shaping technique, and in particular to a kind of apertured nonwoven cloth hot blast shaped device.
Background technology
At present, apertured nonwoven cloth is due to the characteristic of soft pro-skin, so being widely used in physiological napkin or paper diaper
It is dry-ness to improve its Deng in hygienic absorbent products, it will usually perforate or embossing are carried out on apertured nonwoven cloth, both accelerates body
The infiltration rate of liquid, enable to body fluid to pass rapidly through surface layer and reach absorbed layer, when reducing use again and human body contact surface
Product.
Existing shaped device typically uses one group of intermeshing porcupine roller or convex roller and recessed roller, CN200410028483.2
Record is known clearly a kind of boring device, and the first extruding module surface has multiple row pecker, and the second extruding module has corresponding
Groove, the pin operationally heated opens fiber exclusion, and the fibers melt at perforating needle edge is shaped under the action of heat, makes
Obtain and membranization region is formed on the inner surface of perforate, so as to form perforate, and pass is kept using membranization region, this method lacks
Falling into is, the membranization region that fibers melt is formed, although on the inner surface of perforate, when with skin contact, can still produce
Raw granular sensation, influence the flexibility of non-woven fabrics.
In addition, device in itself there is also certain defect, porcupine roller or convex roller typically by engraving or turnning and milling mode
It is process, the porcupine roller of formation or convex roller are an entirety, in use if individual safety pin or projection are damaged, then not
It can be repaired and change, so as to form blind hole defect in production, it is necessary to the porcupine roller or convex roller more renewed, cause great wave
Take.If perforate or embossed pattern somewhat change simultaneously, it is also necessary to re-work new porcupine roller or convex roller, old porcupine roller or
Convex roller can not be utilized, production cost increase.
The content of the invention
It is an object of the invention to overcome prior art defect, there is provided a kind of apertured nonwoven cloth hot blast shaped device.
The concrete technical scheme of the present invention is as follows：
Apertured nonwoven cloth hot blast shaped device, including
One hot-air oven；
With a cylinder roller, its side wall to carry non-woven fabrics fiber net and there is some mesh and some Shaped inserts,
Above-mentioned some mesh arrays set and the air penetrability of its side wall is more than 4000L/m2/ s, each Shaped insert are included
Forming part on connecting portion and one, Shaped insert are arranged at the side wall of cylinder roller by lower connecting portion, and the height of upper forming part >=
1mm, the centre-to-centre spacing between adjacent two Shaped insert is 1.0mm~20.0mm, and the floor space of upper forming part is 0.5~30mm2；
Cylinder roller is rotated and is arranged in hot-air oven, makes the hot blast from hot-air oven by above-mentioned some mesh in circle
Net drum and hot-air oven inner recirculation flow lead to, and then make it that the non-woven fabrics for being carried on cylinder roller and being formed plug-in unit shaping is fine
Dimension net sizing, during the sizing, when Shaped insert is in contact with non-woven fabrics fiber net, Shaped insert is by non-woven fabrics fiber
Fiber exclusion in net is opened and forms perforate or embossing under hot blast effect so that non-woven fabrics forms rapid osmotic passage, the perforate
Or the fibre density of the fringe region of embossing and other regions it is close or identical, and the fiber of the fringe region of perforate or embossing
Around perforate or embossing arrangement and only top layer bonds so that non-woven fabrics will not be cut off to be formed in the fringe region of perforate or embossing
Stiff broken end, or melting forms the region or membranization region of fiber compression, and above-mentioned some mesh arrays, which are set, causes fiber table
Face melt and it is inter-adhesive with keep the flexibility of non-woven fabrics and reduce because of granular sensation caused by perforate or embossing.
In a preferred embodiment of the invention, the lower connecting portion of the Shaped insert passes through buckle structure, screw thread
Coordinate or viscose is arranged in the side wall of cylinder roller.
In a preferred embodiment of the invention, the upper forming part of the Shaped insert includes at least one raised knot
Structure.
It is further preferred that the shape of the bulge-structure includes coniform, pyramid-shaped, column, mesa-shaped and arcuation.
It is further preferred that the bulge-structure includes being connected up and down and a raised and lower convexity on of different shapes one,
Wherein upper projection is shaped as coniform, pyramid-shaped, column, mesa-shaped or arcuation, and lower convexity is shaped as column or mesa-shaped.
It is further preferred that the crest line of the pyramid-shaped or coniform normal and the angle of vertical direction are 10~20
Degree.
The beneficial effects of the invention are as follows：
1st, the present invention includes hot-air oven and cylinder roller, wherein：Cylinder cylinder surface has mesh and Shaped insert,
In forming process, the non-woven fabrics fiber net after combing enters on the cylinder roller inside hot-air oven, due to cylinder roller
Upper to have Shaped insert, when being in contact with unconsolidated non-woven fabrics fiber net, Shaped insert, which can squeeze fiber, to be held and in heat
Perforate or embossing are formed under wind effect, the fibre density of the fringe region of perforate or embossing and other regions are close or identical, and
And the fiber of the fringe region of perforate or embossing is around perforate or embossing arrangement and only fiber sheath bonds so that non-woven fabrics is being opened
The fringe region of hole or embossing will not be cut off the stiff broken end of formation, or melting forms the region or membranization area of fiber compression
Domain, only it is that fiber is centered around around perforate or embossing, and some mesh arrays are set and make the ventilative of the side wall of cylinder roller
Rate is more than 4000L/m2/ s, to ensure that hot blast can penetrate cylinder, and non-woven fabrics fiber net is uniformly and effectively heated, so that
Fiber surface melts and inter-adhesive so as to destroy the flexibility of non-woven fabrics because of perforate or embossing, reduces because of perforate
Or granular sensation caused by embossing.The perforate formed simultaneously can be straight hole or infundibulate perforate, be advantageous to collect body fluid, accelerate
Seepage velocity, form rapid osmotic passage.
2nd, because the Shaped insert of cylinder cylinder surface is arranged at cylinder roller by buckle, bolt or viscose in the present invention
Side wall, so in the event of the fracture of a small number of Shaped inserts, bend, or Shaped insert is distributed when being somewhat adjusted, as long as more
The Shaped insert for changing or adjusting minority achieves that, greatly reduces maintenance or the replacement cost of mould, also saves dimension
Repair or make the time of new mould.
3rd, the invention enables web in forming process both can hot blast effect under fiber occur melting, it is inter-adhesive,
Consolidation forms non-woven fabrics, can form perforate or embossing in the presence of Shaped insert again, realize production non-woven fabrics and perforate
Or the synchronous progress of embossing, reduce processing step, save production cost, also effectively prevent the risk of secondary pollution.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the lateral wall of the cylinder roller of the embodiment of the present invention 1.
Fig. 3 is the structural representation of the Shaped insert of the embodiment of the present invention 1.
Fig. 4 is the top view of the non-woven fabrics obtained by the embodiment of the present invention 1.
Fig. 5 is sectional views of the Fig. 4 along O-O' directions.
Fig. 6 is the structural representation of the embodiment of the present invention 2.
Fig. 7 is the structural representation of the Shaped insert of the embodiment of the present invention 2.
Fig. 8 is the top view of the non-woven fabrics obtained by the embodiment of the present invention 2.
Fig. 9 is sectional views of the Fig. 8 along P-P ' directions.
Figure 10 is the structural representation of the embodiment of the present invention 3.
Figure 11 is the structural representation of the Shaped insert arrangement of the lateral wall of the cylinder roller of the embodiment of the present invention 3.
Figure 12 is sectional views of the Figure 11 along Q-Q' directions.
Figure 13 is the top view of the non-woven fabrics obtained by the embodiment of the present invention 3.
Figure 14 is sectional views of the Figure 13 along R-R' directions.
Figure 15 is the structural representation of the embodiment of the present invention 4.
Figure 16 is the top view of the Shaped insert of the embodiment of the present invention 4.
Figure 17 is sectional views of the Figure 16 along S-S' directions.
Figure 18 is the top view of the non-woven fabrics obtained by the embodiment of the present invention 4.
Figure 19 is sectional views of the Figure 18 along T-T' directions.
Figure 20 is the structural representation of the embodiment of the present invention 5.
Figure 21 is the structural representation of the Shaped insert arrangement of the lateral wall of the cylinder roller of the embodiment of the present invention 5.
Figure 22 is sectional views of the Figure 21 along U-U' directions.
Figure 23 is the top view of non-woven fabrics made from the embodiment of the present invention 5.
Figure 24 is sectional views of the Figure 23 along V-V' directions.
Embodiment
Technical scheme is further detailed and described below by way of embodiment combination accompanying drawing.
Embodiment 1
As shown in Fig. 1 to 5, a kind of apertured nonwoven cloth hot blast shaped device, including a hot-air oven 1 and a cylinder roller 2,
Middle ring-type arrow represents the rotation direction of cylinder roller 2, and outside straight arrow represents the direction of hot blast in hot-air oven 1.
Cylinder roller 2, its side wall to carry non-woven fabrics fiber net and there is some mesh 21 and some Shaped inserts 22,
The above-mentioned array of some mesh 21 sets and the air penetrability of its side wall is reached 6500L/m2/ s, each Shaped insert 22 include
One has forming part 222 on the lower connecting portion 221 and one of bayonet arrangement, and Shaped insert 22 is arranged at circle by lower connecting portion 221
The side wall of net drum 2, upper forming part 222 include a bulge-structure 2220, and the bulge-structure 2220 is shaped as pyramid-shaped (rib
The crest line of cone and the angle of vertical direction are 10~20 degree), it is highly 3mm, the centre-to-centre spacing between adjacent two Shaped insert 22 is
5mm, the floor space of upper forming part 222 is 3mm2；
Cylinder roller 2, which rotates, to be set with hot-air oven 1, making the hot blast from hot-air oven 1 pass through above-mentioned some mesh
21 lead in cylinder roller 2 and the inner recirculation flow of hot-air oven 1, so cause be carried on cylinder roller 2 and be formed plug-in unit 22 into
The non-woven fabrics fiber net sizing of type.It is specific as follows：
Non-woven fabrics 3 is manufactured using the present invention, by 1.5dtex two-component PE/PET fibers by opening bag, fibre-opening unit combing
Into web, subsequently into the present invention, due to the surface forming plug-in unit 22 of cylinder roller 2 of the present invention upper forming part 222 it is convex
Web can be penetrated by playing structure 2220 so that and fiber is centered around around the upper forming part 222 of Shaped insert 22, while in hot blast
The hot blast of baking oven 1 can penetrate the mesh 21 on the surface of cylinder roller 2 so that fiber sheath melts, adhered to one another between fiber, consolidation
Networking, so as to form the non-woven fabrics 3 with the structure of perforate 31.
The top of perforate 31 on non-woven fabrics 3 is located at the upper surface of non-woven fabrics 3, and the bottom of perforate 31 is located at non-woven fabrics 3
Lower surface is simultaneously concordant with lower surface, because the bulge-structure 2220 of the upper forming part 222 of Shaped insert 22 is shaped as pyramid-shaped,
So that the cross-sectional area at the top of perforate 31 is more than the cross-sectional area of bottom, infundibulate perforate 31 is formed, not only improves infiltration, again
It effectively prevent the generation returned and oozed, and pyramid-shaped structure is advantageous under easily being peeled off from Shaped insert 22 after fiber net forming
Come.Because the shaping of non-woven fabrics 3 and perforate are carried out simultaneously, fiber is only distributed across around perforate 31 and mutually bonded by fiber
Networking, therefore be not in that fiber is cut off the stiff broken end formed, or melting forms the region or membranization region of fiber compression,
The flexibility of non-woven fabrics 3 will not be destroyed because of perforate, is reduced because of granular sensation caused by perforate.And in use
The presence of perforate 31, the speed oozed under body fluid is considerably increased, effectively reduce the risk of side leakage and seepage.Shaped insert simultaneously
22 lower connecting portion 221 is to be arranged on by buckle structure on cylinder roller 2, be broken in the event of a small number of Shaped inserts 22,
Bending etc. can not be repaired, or Shaped insert 22 is distributed when being somewhat adjusted, as long as changing or adjusting a small number of Shaped inserts 22
Achieve that, greatly reduce maintenance or the replacement cost of mould, also save maintenance or make the time of new mould.
Embodiment 2
As shown in Fig. 6 to 9, a kind of apertured nonwoven cloth hot blast shaped device, including a hot-air oven 1 and a cylinder roller 2,
Middle ring-type arrow represents the rotation direction of cylinder roller 2, and outside straight arrow represents the direction of hot blast in hot-air oven 1.
Cylinder roller 2, its side wall to carry non-woven fabrics fiber net and there is some mesh 21 and some Shaped inserts 22,
The above-mentioned array of some mesh 21 sets and the air penetrability of its side wall is reached 5900L/m2/ s, each Shaped insert 22 include
Forming part 222 on one externally threaded lower connecting portion 221 and one, Shaped insert 22 are arranged at cylinder roller 2 by lower connecting portion 221
Side wall, upper forming part 222 includes a bulge-structure 2220, and the bulge-structure 2220 includes raised on connected one up and down
A 2220a and lower convexity 2220b, wherein upper raised 2220a's is shaped as coniform (normal of the circular cone and the folder of vertical direction
Angle is 10~20 degree), being shaped as lower convexity 2220b is cylindric, and the height of whole bulge-structure 2220 is 5mm, adjacent two one-tenth
Centre-to-centre spacing between type plug-in unit 22 is 8mm, and the floor space of upper forming part 222 is 0.5mm2；
Cylinder roller 2, which rotates, to be set with hot-air oven 1, making the hot blast from hot-air oven 1 pass through above-mentioned some mesh
21 lead in cylinder roller 2 and the inner recirculation flow of hot-air oven 1, so cause be carried on cylinder roller 2 and be formed plug-in unit 22 into
The non-woven fabrics fiber net sizing of type.It is specific as follows：
By the hydrophobic PE/PET fibers of 2.0dtex two-components and the hydrophilic PE/PET fibers of 2.0dtex bi-components respectively by opening
Bag, fibre-opening unit are combed into web, subsequently into the present invention, due to the raised knot of the Shaped insert 22 on the surface of cylinder roller 2
Structure 2220 can penetrate web so that fiber is centered around around Shaped insert 22, while can penetrate circle in the hot blast of hot-air oven 1
The mesh 21 on the surface of net drum 2 so that fiber sheath melts, adhered to one another between fiber, consolidates networking, is opened so as to be formed to have
The non-woven fabrics 3 of the structure of hole 31.
The top of perforate 31 on non-woven fabrics 3 is located at the upper surface of non-woven fabrics 3, and the bottom of perforate 31 is located at non-woven fabrics 3
Lower surface is simultaneously concordant with lower surface, because the bulge-structure 2220 of the upper forming part 222 of Shaped insert 22 includes what is be connected up and down
A raised 2220a and lower convexity 2220b on one, wherein being shaped as upper raised 2220a it is coniform (normal of the circular cone with it is vertical
The angle in direction is 10~20 degree), being shaped as lower convexity 2220b is cylindric so that the cross-sectional area at the top of perforate 31 with
The cross-sectional area of bottom is identical, and top is cone, is advantageous to easily shell from Shaped insert 22 after piercing through web and shaping
From getting off.Non-woven fabrics 3 in the present embodiment, upper strata are hydrophobic fiber layer, and lower floor is hydrophilic fibers layer, is both reduced in actual applications
The residual of body fluid in the upper layer, also effectively prevent body fluid from returning to upper strata, reduce damp sense, improve dry-ness, use simultaneously
Shaped insert 22 is arranged at the surface of cylinder roller 2 by the mode of threaded connection, is advantageous to be more prone to Shaped insert 22
Be arranged on cylinder roller 2, and occur a small number of Shaped inserts 22 be broken, bend etc. can not repair when, as long as changing or tune
Whole a small number of Shaped insert 22 achieves that, greatly reduces maintenance or the replacement cost of mould.
Embodiment 3
As shown in Figure 10 to 14, a kind of apertured nonwoven cloth hot blast shaped device, including a hot-air oven 1 and a cylinder roller
2, middle ring-type arrow represents the rotation direction of cylinder roller 2, and outside straight arrow represents the side of hot blast in hot-air oven 1
To.
Cylinder roller 2, its side wall to carry non-woven fabrics fiber net and there is some mesh 21 and some Shaped inserts 22,
The above-mentioned array of some mesh 21 sets and the air penetrability of its side wall is reached 6200L/m2/ s, each Shaped insert 22 include
One height be 5mm stage body shape lower connecting portion 221 and one on forming part 222, the bottom of the lower connecting portion 221 of Shaped insert 22
The side wall of cylinder roller 2 is arranged at by viscose, upper forming part 222 includes a bulge-structure 2220, the bulge-structure 2220
Coniform (normal of the circular cone and the angle of vertical direction be 10~20 degree) is shaped as, is highly 3mm, adjacent two Shaped insert
Centre-to-centre spacing between 22 is 15mm, and the floor space of upper forming part 222 is 20mm2；
Cylinder roller 2, which rotates, to be set with hot-air oven 1, making the hot blast from hot-air oven 1 pass through above-mentioned some mesh
21 lead in cylinder roller 2 and the inner recirculation flow of hot-air oven 1, so cause be carried on cylinder roller 2 and be formed plug-in unit 22 into
The non-woven fabrics fiber net sizing of type.It is specific as follows：
By the hydrophilic PE/PET fibers of 2.0dtex two-components by open bag, fibre-opening unit be combed into web, subsequently into this
Invention, because the upper forming part 222 of the Shaped insert 22 on the surface of cylinder roller 2 of the present invention can penetrate web so that fiber
It is centered around around Shaped insert 22, meanwhile, the space between the lower connecting portion 221 of the adjacent Shaped insert 22 in the present embodiment
Forming area 2221 is interconnected to form, after web enters forming area 2221, fiber can uniformly be distributed in shaping
In region 2221, under hot blast effect, mutually bonding is consolidated into non-woven fabrics 3 between fiber, so as to positioned at the convex of Shaped insert 22
Play the fiber around structure 2220 and form perforate 31, and the fiber in forming area 2221 forms projection 32, has so as to be formed
The non-woven fabrics 3 of concaveconvex structure.
The projection compared with using prior art being the projection of concavo-convex roller formation of a pair of heating there is surface to be squeezed without fiber
Swaging into fiber compression regions and fibers melt and the membranization region that is formed, so raised more soft, sense of touch more pro-skin,
When can also reduce use simultaneously and skin contact area, feel dryer and comfortableer.
Meanwhile the lower connecting portion 221 of the adjacent Shaped insert 22 on the surface of cylinder roller 2 empty part be connected with each other and formed into
Other Shaped inserts 22 can also be installed in type region 2221, can be with so as to have perforate 31 in the projection of the non-woven fabrics 3 formed
Form the lower bleed-through road of body fluid, the seepage velocity of accelerating liquid.
Embodiment 4
As shown in Figure 15 to 19, a kind of apertured nonwoven cloth hot blast shaped device, including a hot-air oven 1 and a cylinder roller
2, middle ring-type arrow represents the rotation direction of cylinder roller 2, and outside straight arrow represents the side of hot blast in hot-air oven 1
To.
Cylinder roller 2, its side wall to carry non-woven fabrics fiber net and there is some mesh 21 and some Shaped inserts 22,
The above-mentioned array of some mesh 21 sets and the air penetrability of its side wall is reached 5000L/m2/ s, each Shaped insert 22 include
One height is forming part 222 on the lower connecting portion 221 and one of 6mm stage body shape, and the lower connecting portion 221 of Shaped insert 22, which passes through, to be sticked
Glue is arranged at the side wall of cylinder roller 2, and upper forming part 222 includes some bulge-structures 2220, the shape of the bulge-structure 2220
Be highly 4mm for coniform (normal of the circular cone and the angle of vertical direction be 10~20 degree), adjacent two Shaped insert 22 it
Between centre-to-centre spacing be 12mm, the floor space of upper forming part 222 is 30mm2；
Cylinder roller 2, which rotates, to be set with hot-air oven 1, making the hot blast from hot-air oven 1 pass through above-mentioned some mesh
21 lead in cylinder roller 2 and the inner recirculation flow of hot-air oven 1, so cause be carried on cylinder roller 2 and be formed plug-in unit 22 into
The non-woven fabrics fiber net sizing of type.It is specific as follows：
By the hydrophilic PE/PP fibers of 1.5dtex two-components by open bag, fibre-opening unit be combed into web, subsequently into this
Invention, due to some coniform raised meetings in the top of forming part 222 on the Shaped insert 22 on the surface of cylinder roller 2 of the present invention
Penetrating web so that fiber is centered around around Shaped insert 22, meanwhile, the lower connecting portion of the Shaped insert 22 in the present embodiment
Space between 221 is interconnected to form the forming area 2221 of strip, after web enters the forming area 2221, fiber
Can uniformly it be distributed in forming area 2221, under hot blast effect, mutually bonding is consolidated into non-woven fabrics 3 between fiber, so as to
Fiber formation perforate 31 around the bulge-structure 2220 of the upper forming part 222 of Shaped insert 22, and forming area 2221
In fiber formed projection 32, so as to form the non-woven fabrics 3 with concaveconvex structure.
The projection 32 has surface without fiber compared with using prior art being the projection of concavo-convex roller formation of a pair of heating
The membranization region for extruding the fiber compression regions formed and fibers melt and being formed, so projection 32 is more soft, sense of touch is more
Pro-skin, at the same when can also reduce use and skin contact area, feel dryer and comfortableer, and perforate 31 is by multiple 31 groups of perforates
Into adding the density of perforate 31, contribute to body fluid to penetrate into absorbent core layer faster.
Embodiment 5
As shown in Figure 20 to 24, a kind of apertured nonwoven cloth hot blast shaped device, including a hot-air oven 1 and a cylinder roller
2, middle ring-type arrow represents the rotation direction of cylinder roller 2, and outside straight arrow represents the side of hot blast in hot-air oven 1
To.
Cylinder roller 2, its side wall to carry non-woven fabrics fiber net and with some mesh 21, some first Shaped inserts
22 and some second Shaped inserts 23, above-mentioned some arrays of mesh 21 set and the air penetrability of its side wall is reached 7000L/
m2/s；Every one first Shaped insert 22 includes forming part on first time connecting portion 221 and 1 first with bayonet arrangement
222, the first Shaped insert 22 is arranged at the side wall of cylinder roller 2 by first time connecting portion 221, and forming part 222 is wrapped on first
Include one first bulge-structure 2220, the coniform (normal and vertical direction of the circular cone of being shaped as first bulge-structure 2220
Angle be 10~20 degree), be highly 7mm, the floor space of forming part 222 is 2mm on first2；Every one second Shaped insert 23
Include forming part 232 on second time connecting portion 231 and 1 second with bayonet arrangement, the second Shaped insert 23 passes through the
Two times connecting portions 231 are arranged at the side wall of cylinder roller 2, and forming part 232 includes one second bulge-structure 2320 on second, and this
Two bulge-structures 2320 are shaped as arcuation, are highly 5mm, and the floor space of forming part 232 is 15mm on second2；It is adjacent two one-tenth
Centre-to-centre spacing between type plug-in unit 22 is 7mm；
Cylinder roller 2, which rotates, to be set with hot-air oven 1, making the hot blast from hot-air oven 1 pass through above-mentioned some mesh
21 lead in cylinder roller 2 and the inner recirculation flow of hot-air oven 1, so cause be carried on cylinder roller 2 and be formed plug-in unit 22 into
The non-woven fabrics fiber net sizing of type.It is specific as follows：
By the hydrophilic PE/PET fibers of 1.5dtex two-components by open bag, fibre-opening unit be combed into web, subsequently into this
Invention, due to the present invention the surface of cylinder roller 2 the first Shaped insert 22 first on forming part 222 bulge-structure 2220
To be coniform, web can be penetrated so that fiber is centered around around the first Shaped insert 22, meanwhile, due to circle in the present embodiment
The surface of net drum 2 also has the second Shaped insert 23, and when web is in contact with the second Shaped insert 23, fiber can be uniform
Be distributed in around the second Shaped insert 23 and top, hot blast effect under, between fiber mutually bonding be consolidated into non-woven fabrics 3,
So that the fiber formation perforate 31 around the first Shaped insert 22, and the fiber shape at around the second Shaped insert 23 and top
Into recess 33, so as to form the non-woven fabrics 3 with concaveconvex structure.
Non-woven fabrics 3 has the second Shaped insert 23 due to the surface of cylinder roller 2 in the present embodiment, enters in web and justifies
When on net drum 2, due to the presence of the second Shaped insert 23 so that be looped around around the second Shaped insert 23 and top fibers
Recess 33 is formed, the recess 33 can play liquid storage when body fluid or baby's soft stool reach described non-woven fabrics 3, prevent side
Leakage and the effect of sliding leakage, so as to contribute to osmotic absorption and reach dry and comfortable purpose.While the first Shaped insert 22 and the second one-tenth
Type plug-in unit 23 is to be arranged on by buckle structure on cylinder roller 2, be broken in the event of a small number of pins or raised Shaped insert 22,
Bending, abrasion etc. can not repair, or Shaped insert 22 are distributed when being somewhat adjusted, as long as changing or shaping that adjustment is a small number of
Plug-in unit 22 achieves that, greatly reduces maintenance or the replacement cost of opening die, also saves maintenance or makes new perforate mould
The time of tool.
The foregoing is only a preferred embodiment of the present invention, therefore can not limit the scope that the present invention is implemented according to this, i.e.,
The equivalent changes and modifications made according to the scope of the claims of the present invention and description, all should still it belong in the range of the present invention covers.
Claims (6)
1. apertured nonwoven cloth hot blast shaped device, it is characterised in that：Including
One hot-air oven；
It is above-mentioned to carry non-woven fabrics fiber net and there is some mesh and some Shaped inserts with a cylinder roller, its side wall
Some mesh arrays set and the air penetrability of its side wall is more than 4000L/m2/ s, each Shaped insert include connecting
Forming part in portion and one, Shaped insert are arranged at the side wall of cylinder roller by lower connecting portion, height >=1mm of upper forming part,
Centre-to-centre spacing between adjacent two Shaped insert is 1.0mm~20.0mm, and the floor space of upper forming part is 0.5~30mm2；
Cylinder roller is rotated and is arranged in hot-air oven, the hot blast from hot-air oven is rolled by above-mentioned some mesh in cylinder
Cylinder and hot-air oven inner recirculation flow lead to, and then cause the non-woven fabrics fiber net for being carried on cylinder roller and being formed plug-in unit shaping
Sizing, during the sizing, when Shaped insert is in contact with non-woven fabrics fiber net, Shaped insert is by non-woven fabrics fiber net
Fiber exclusion open and form perforate or embossing under hot blast effect so that non-woven fabrics forms rapid osmotic passage, the perforate or pressure
The fibre density of colored fringe region and other regions are close or identical, and the fiber of the fringe region of perforate or embossing surrounds
Perforate or embossing arrangement and only top layer bonding so that non-woven fabrics will not be cut off the deadlock of formation in the fringe region of perforate or embossing
Hard broken end, or melting form the region or membranization region of fiber compression, and above-mentioned some mesh arrays, which are set, causes fiber surface to melt
Melt and it is inter-adhesive with keep the flexibility of non-woven fabrics and reduce because of granular sensation caused by perforate or embossing.
2. apertured nonwoven cloth hot blast shaped device as claimed in claim 1, it is characterised in that：The lower connection of the Shaped insert
Portion is coordinated by buckle structure, screw thread or viscose is arranged in the side wall of cylinder roller.
3. apertured nonwoven cloth hot blast shaped device as claimed in claim 1, it is characterised in that：The upper shaping of the Shaped insert
Portion includes an at least bulge-structure.
4. apertured nonwoven cloth hot blast shaped device as claimed in claim 3, it is characterised in that：The shape bag of the bulge-structure
Include coniform, pyramid-shaped, column, mesa-shaped and arcuation.
5. apertured nonwoven cloth hot blast shaped device as claimed in claim 4, it is characterised in that：The bulge-structure is included up and down
It is connected and raised on an of different shapes one and lower convexity, raised coniform, pyramid-shaped, column, mesa-shaped is shaped as wherein upper
Or arcuation, lower convexity are shaped as column or mesa-shaped.
6. the apertured nonwoven cloth hot blast shaped device as described in claim 4 or 5, it is characterised in that：The crest line of the pyramid-shaped
Or coniform normal and the angle of vertical direction are 10~20 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710896133.5A CN107815790A (en) | 2017-09-28 | 2017-09-28 | Apertured nonwoven cloth hot blast shaped device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710896133.5A CN107815790A (en) | 2017-09-28 | 2017-09-28 | Apertured nonwoven cloth hot blast shaped device |
Publications (1)
| Publication Number | Publication Date |
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| CN107815790A true CN107815790A (en) | 2018-03-20 |
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| CN201710896133.5A Pending CN107815790A (en) | 2017-09-28 | 2017-09-28 | Apertured nonwoven cloth hot blast shaped device |
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| CN (1) | CN107815790A (en) |
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