CN102535010B - Production equipment of compound non-woven fabric absorber, process and compound non-woven fabric absorber - Google Patents
Production equipment of compound non-woven fabric absorber, process and compound non-woven fabric absorber Download PDFInfo
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- CN102535010B CN102535010B CN201110438110.2A CN201110438110A CN102535010B CN 102535010 B CN102535010 B CN 102535010B CN 201110438110 A CN201110438110 A CN 201110438110A CN 102535010 B CN102535010 B CN 102535010B
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Abstract
The invention relates to production equipment of compound non-woven fabric absorber, which comprises a transmission unit, a lapping unit and a consolidating unit. The lapping unit is used to form a non-woven fabric fiber compound on the transmission unit and the non-woven fabric fiber compound is formed by at least a first thermally melting fiber layer and a hydrophilic fiber layer that are laminated. The transmission unit is used to transmit the non-woven fabric fiber compound in a predetermined transmission direction. the consolidating unit is used to provide at least a pulse hot air which is used to spray and impact the non-woven fabric fiber compound so as to soften the thermally melt fiber of the first thermally melting fiber layer and introduce the softened thermally melt fiber into the hydrophilic fiber layer so as to form consolidating points. The invention further relates to a preparation process of the compound non-woven fabric absorber and the compound non-woven fabric absorber.
Description
Technical field
The present invention relates to a kind of compound nonwoven cloth absorber production equipment, technique and compound nonwoven cloth absorber.
Background technology
Macromolecule polymer material mostly has hot melt, and being heated to after uniform temperature can softening melting, becomes the rheid with certain fluidity, solidifies again after cooling, becomes solid.Heat bonding nonwovens process is exactly this characteristic of utilizing hot melt macromolecule polymer material, makes the fiber web softening melting of rear section fiber or hot melt powder of being heated, and produces adhesion between fiber, and cooling rear fiber web is reinforced and become heat bonding nonwoven material.Now widely used thermal bonding technology mainly comprises hot melt method, hot calendering bonding method and ultrasonic wave Method for bonding, wherein being most widely used with hot melt adhesive and hot calendering bonding method.
Hot melt method generally adopts the mode of the oven drying of hot-air through type, its technical process is before fiber opening mixed process, meldable fibre or polymer powder to be entrained in main fibre, make its with main fibre together through shredding, mix and combing and being evenly distributed in fibre web, then utilize Hot-blast Heating so that the meldable fibre in fibre web or polymer powder melted by heating, melt occurs flow and condense in fiber intersection points, reaches the object of bonding main body fibre web.Hot calendering bonding method is also to utilize the melted by heating of hot-melt polymer, flow and condense to reach the object of adhesion fiber web.They are different from hot melt, and the baking oven that it replaces hot melt method with the form of hot roll is realized the heat bonding to non-weaving cloth fibre web.This technical process is that loose fibre web is transported between the roll of a pair of heating, along with fibre web passes through from roll a little, make fiber be subject to heat and the pressure-acting from roll, melting occurs and form welding at interfibrous crosspoint place, thereby realize the fixed cloth that forms to fibre web.
In existing production technology, no matter adopt above-mentioned hot melting way or hot pressing mode to produce compound nonwoven cloth absorber, in process, be all easy to occur that the hot-melt fiber after melting sticks together in flakes or the phenomenon of slivering each other, thereby hot melt region or hot pressing region at compound nonwoven cloth absorber form lump, these lump not only affect the feel of compound nonwoven cloth absorber, and the lump region forming can have influence on softness and the water absorbing properties of compound nonwoven cloth absorber greatly, thereby cause the compound nonwoven cloth absorber serviceability making to decline.
Summary of the invention
In view of this, provide a kind of compound nonwoven cloth absorber production equipment that can address the above problem, technique and compound nonwoven cloth absorber real in necessary.
A kind of compound nonwoven cloth absorber production equipment, it comprises: transmission unit, it comprises holding lace curtaining, lapping unit, it comprises the first hot-melt fiber lapping machine and hydrophilic fibre lapping machine, this the first hot-melt fiber lapping machine is used for exporting the first hot-melt fiber and flows to form the first hot-melt fiber layer, this hydrophilic fibre lapping machine is used for exporting hydrophilic fibre and flows to form hydrophilic fiber layer, this lapping unit for forming non-woven fabrics fiber complex on this holding lace curtaining, this non-woven fabrics fiber complex is at least formed by this first hot-melt fiber layer and this hydrophilic fiber layer stacked on top of one another, this holding lace curtaining is for carrying this non-woven fabrics fiber complex according to scheduled transmission direction, consolidation unit, it is for providing at least one beam pulse thermal current, this at least one beam pulse thermal current is for carrying out jet impact to this non-woven fabrics fiber complex, so that the hot-melt fiber of this first hot-melt fiber layer is softening, and the hot-melt fiber after softening is brought in this hydrophilic fiber layer and formed anchoring point.
A kind of compound nonwoven cloth absorber preparation technology, it comprises the steps: to provide multiple fibre stream, this majority fibre stream comprises the first hot-melt fiber stream and hydrophilic fibre stream, this the first hot-melt fiber stream is used to form the first meldable fibre layer, this hydrophilic fibre stream is used to form hydrophilic fiber layer, utilize this multiple fibre stream on holding lace curtaining, to form non-woven fabrics fiber complex, this non-woven fabrics fiber complex is at least formed by this first hot-melt fiber layer and this hydrophilic fiber layer stacked on top of one another; One consolidation unit is provided, described consolidation unit is for spraying at least a branch of pulse heat air-flow, utilize this at least one beam pulse thermal current to spray this non-woven fabrics fiber complex, be clamminess so that the hot-melt fiber on this non-woven fabrics fiber complex top layer is softening, and under the drive of this at least one beam pulse thermal current, turn to and enter the inside formation anchoring point of this non-woven fabrics fiber complex along the injection direction bending of this pulse heat air-flow.
A kind of compound nonwoven cloth absorber, it comprises the first hot-melt fiber layer and hydrophilic fiber layer, this the first hot-melt fiber layer and this hydrophilic fiber layer stacked on top of one another arrange, this the first hot-melt fiber layer surface has the micropore extending along the thickness direction of this compound nonwoven cloth absorber, at this micropore place, the hot-melt fiber of this first hot-melt fiber layer extends in this hydrophilic fiber layer and forms hot sticky fixed with this hydrophilic fiber layer along this micropore.
Compared with prior art, this compound nonwoven cloth absorber production equipment provided by the present invention, technique and compound nonwoven cloth absorber, it is by adopting pulse heat air-spray to carry out fixed to the non-woven fabrics fiber complex that includes hot-melt fiber material, make this hot-melt fiber first soften and be clamminess under the impact of this pulse heat air-spray, then under the drive of this pulse heat air-spray, bend and turn to the thickness direction of this non-woven fabrics fiber complex, and under the drive of this pulse heat air-spray, enter into the fibrage of lower floor bonding fixed with the fiber of lower floor fibrage.And because heated air jets used in the present invention is to impact fixed with the form of pulse to non-woven fabrics fiber complex, therefore, in the direction of advance of non-woven fabrics fiber complex, can not form continuous hot melt region, avoid hot-melt fiber adhesion in flakes or the phenomenon of slivering, and can be by the pulse frequency of distribution density, distribution mode and the heated air jets of control jet, control density and the distribution of the anchoring point in non-woven fabrics fiber complex, control pliability and the fluffy performance of prepared compound nonwoven cloth absorber with this.In addition, under the impact of the pulse heat air-spray of this compound nonwoven cloth consolidation device, non-woven fabrics fiber complex by shock zone, can form trickle impact hole along its thickness direction, and turning to of hot-melt fiber also can cause this fiber architecture density of being impacted near fiber through-thickness hole higher than other region, fiber architecture density is along its length lower than other region, and such fibre structure can well improve the rate of water absorption of compound nonwoven cloth absorber.Further, at this compound nonwoven cloth absorber production equipment, this non-woven fabrics fiber complex being carried out to heated air jets impacts in fixed process, can also enter into the degree of depth in hydrophilic fiber layer and impact the diameter of hole by regulating the impact strength of pulse heat air-spray that the consolidation unit of this compound nonwoven cloth absorber production equipment sprays and the diameter of pulse heat air-spray to control the meldable fibre being softened in hot-melt fiber layer, so that the compound nonwoven cloth absorber making meets different user demands.
Brief description of the drawings
Fig. 1 is the structural representation of the compound nonwoven cloth absorber production equipment that provides of embodiment of the present invention, and it comprises lapping unit and consolidation unit.
Fig. 2 is the first mode of texturing of the lapping unit in the compound nonwoven cloth absorber production equipment that provides of embodiment of the present invention.
Fig. 3 is the second mode of texturing of the lapping unit in the compound nonwoven cloth absorber production equipment that provides of embodiment of the present invention.
Fig. 4 is the third mode of texturing of the lapping unit in the compound nonwoven cloth absorber production equipment that provides of embodiment of the present invention.
Fig. 5 is the 4th kind of mode of texturing of the lapping unit in the compound nonwoven cloth absorber production equipment that provides of embodiment of the present invention.
Fig. 6 is the 5th kind of mode of texturing of the lapping unit in the compound nonwoven cloth absorber production equipment that provides of embodiment of the present invention.
Fig. 7 is the mode of texturing of the consolidation unit in the compound nonwoven cloth absorber production equipment that provides of embodiment of the present invention, and wherein this consolidation unit comprises gas source and housing.
Fig. 8 is the matching relationship schematic diagram of the gas source shown in Fig. 7 and housing.
Fig. 9 is the matching relationship sectional view of the gas source shown in Fig. 7 and housing.
Main element symbol description
| Compound nonwoven cloth absorber production equipment | 100 |
| Transmission unit | 10 |
| Holding lace curtaining | 11 |
| Lapping unit | 20 |
| The first hot-melt fiber lapping machine | 21 |
| The first hot-melt fiber stream | 211 |
| The first hot-melt fiber layer | 212 |
| Hydrophilic fibre lapping machine | 22 |
| Hydrophilic fibre stream | 221 |
| Hydrophilic fiber layer | 222 |
| The second hot-melt fiber lapping machine | 23 |
| The second hot-melt fiber stream | 231 |
| The second hot-melt fiber layer | 232 |
| Consolidation unit | 30 |
| Hot gas source | 31 |
| Gas generating unit | 311 |
| Impulse valve | 312 |
| Jet | 32，321 |
| Vaccum-pumping equipment | 33，330 |
| Pulse heat air-spray | 34 |
| Non-woven fabrics fiber complex | 40，40A，40B |
| Gas source | 310 |
| Sidewall | 313 |
| Gas vent | 314 |
| Housing | 320 |
| Heated air jets | 322 |
Following detailed description of the invention further illustrates the present invention in connection with above-mentioned accompanying drawing.
Detailed description of the invention
Compound nonwoven cloth absorber production equipment 100 shown in Figure 1, embodiment of the present invention provides, it comprises transmission unit 10, lapping unit 20 and consolidation unit 30.
This transmission unit 10 comprises holding lace curtaining 11, and this transmission unit 10 is for by being formed on fiber composite on this holding lace curtaining 11 and being sent to each workshop section of this compound nonwoven cloth absorber production equipment 100, so that this fiber composite is processed to processing.
This lapping unit 20 for laying non-woven fabrics fiber complex 40 on this holding lace curtaining 11.
In the present embodiment, this lapping unit 20 comprises the first hot-melt fiber lapping machine 21 and hydrophilic fibre lapping machine 22, wherein, this the first hot-melt fiber lapping machine 21 is for exporting the first hot-melt fiber stream 211 to form the first hot-melt fiber layer 212, this hydrophilic fibre lapping machine 22 is for exporting hydrophilic fibre stream 221 to form hydrophilic fiber layer 222, this the first hot-melt fiber lapping machine 21 cooperatively interacts on this holding lace curtaining 11, to form non-woven fabrics fiber complex 40A with this hydrophilic fibre lapping machine 22, this non-woven fabrics fiber complex 40A is formed with these hydrophilic fiber layer 222 stacked on top of one another by this first hot-melt fiber layer 212.
Preferably, this first hot-melt fiber lapping machine 21 is hot-melt fiber device for melt blowing, and this hydrophilic fibre lapping machine 22 is fiberizer.
This the first hot-melt fiber lapping machine 21 can design according to different technique from the fit form of this hydrophilic fibre lapping machine 22, as shown in Figure 1, in present embodiment, this the first hot-melt fiber lapping machine 21 can arrange with this hydrophilic fibre lapping machine 22 before and after the transmission direction of this transmission unit 10, like this, when work, this hydrophilic fibre lapping machine 22 can first be laid hydrophilic fiber layer 222 on this holding lace curtaining 11, then this hydrophilic fiber layer 222 advances along the transmission direction of this transmission unit 10 under the drive of this holding lace curtaining 11, in the time that this hydrophilic fiber layer 222 is come the below of this first hot-melt fiber lapping machine 21, this the first hot-melt fiber lapping machine 21 is established this first hot-melt fiber layer 212 to form this non-woven fabrics fiber complex 40A at these hydrophilic fiber layer 222 upper strata lay-ups.
Understandable, as shown in Figure 2, in the first mode of texturing of this lapping unit 20, relative this hydrophilic fibre lapping machine 22 of this first hot-melt fiber lapping machine 21 can be certain inclination angle and arrange, so that the hydrophilic fibre stream 221 that the first hot-melt fiber stream 211 that this first hot-melt fiber lapping machine 21 is exported and this hydrophilic fibre lapping machine 22 are exported formed interflow before arriving this holding lace curtaining 11, thereby directly on this holding lace curtaining 11, form this non-woven fabrics fiber complex 40A.
Understandable, this first hot-melt fiber lapping machine 21 can also have the distortion of other form with the relative position relation of this hydrophilic fibre lapping machine 22, as long as can form this non-woven fabrics fiber complex 40A on this holding lace curtaining 11.
Further, this lapping unit 20 can also comprise the second hot-melt fiber lapping machine 23, and it is for exporting the second hot-melt fiber stream 231 to form the second hot-melt fiber layer 232.This second hot-melt fiber lapping machine 23 and this first hot-melt fiber lapping machine 21 and this hydrophilic fibre lapping machine 22 cooperatively interact forming taking this hydrophilic fiber layer 222 as intermediate layer on this holding lace curtaining 11, this first hot-melt fiber layer 212 and the second hot-melt fiber layer 232 folded non-woven fabrics fiber complex 40B with three-layer sandwich structure that is located at these hydrophilic fiber layer 222 both sides respectively.
Certainly, this the second hot-melt fiber lapping machine 23 can design according to different technique from the fit form of this first hot-melt fiber lapping machine 21 and this hydrophilic fibre lapping machine 22, as shown in Figure 3, in the second mode of texturing of this lapping unit 20, this the first hot-melt fiber lapping machine 21, hydrophilic fibre lapping machine 22 and the second hot-melt fiber lapping machine 23 set gradually along the transmission direction of this transmission unit 10, when work, this the first hot-melt fiber lapping machine 21 is first laid this first hot-melt fiber layer 212 on this holding lace curtaining 11, then this hydrophilic fibre lapping machine 22 is established hydrophilic fiber layer 222 at these the first hot-melt fiber layer 212 upper strata lay-ups, then this second hot-melt fiber lapping machine 23 is established the second hot-melt fiber layer 232 at these hydrophilic fiber layer 222 upper strata lay-ups again, thereby form this non-woven fabrics fiber complex 40B.
Understandable, as shown in Figure 4, in the third mode of texturing of this lapping unit 20, the both sides that are positioned at this hydrophilic fibre lapping machine 22 of this first hot-melt fiber lapping machine 21 and these the second hot-melt fiber lapping machine 23 symmetries, and relative this hydrophilic fibre lapping machine 22 is the setting of certain inclination angle respectively, so that this first hot-melt fiber stream 211, hydrophilic fibre stream 221 and the second hot-melt fiber stream 231 formed taking the interflow of these hydrophilic fibre stream 221 three-layer sandwich structures as intermediate layer before arriving this holding lace curtaining 11, thereby directly on this holding lace curtaining 11, form this non-woven fabrics fiber complex 40B.
Understandable, this the first hot-melt fiber lapping machine 21, hydrophilic fibre lapping machine 22 and the second hot-melt fiber lapping machine 23 threes' relative position can also carry out other forms of distortion, as shown in Figure 5, in the 4th kind of mode of texturing of this lapping unit 20, this the first hot-melt fiber lapping machine 21, the relative position of hydrophilic fibre lapping machine 22 and the second hot-melt fiber lapping machine 23 is on the basis shown in Fig. 4, this the first hot-melt fiber lapping machine 21 is crisscross arranged in the direction perpendicular to this holding lace curtaining 11 with this second hot-melt fiber lapping machine 23, so that this first hot-melt fiber stream 211 first forms the interflow of double-layer structure with this hydrophilic fibre stream 221, then make this second hot-melt fiber stream 231 arrive the interflow of the front formation of this holding lace curtaining 11 taking these hydrophilic fibre stream 221 three-layer sandwich structures as intermediate layer with this two-layer interflow again, finally on this holding lace curtaining 11, form this non-woven fabrics fiber complex 40B.
Understandable, this the first hot-melt fiber lapping machine 21, the relative position of hydrophilic fibre lapping machine 22 and the second hot-melt fiber lapping machine 23 can further be out of shape on the basis shown in Fig. 5, as shown in Figure 6, in the 5th kind of mode of texturing of this lapping unit 20, making relative this hydrophilic fibre lapping machine 22 of this first hot-melt fiber lapping machine 21 be certain inclination angle arranges, so that this first hot-melt fiber stream 211 and this hydrophilic fibre stream 221 formed the interflow of double-layer structure before arriving this holding lace curtaining 11, then form on this holding lace curtaining 11 at this two-layer interflow after the stacked double-layer structure of this first hot-melt fiber layer 212 and this hydrophilic fiber layer 222, this the second hot-melt fiber lapping machine 23 is set is again formed on this hydrophilic fiber layer 222 this second hot-melt fiber layer 232, thereby on this holding lace curtaining 11, form this non-woven fabrics fiber complex 40B.
Understandable, this the first hot-melt fiber lapping machine 21, hydrophilic fibre lapping machine 22 and the second hot-melt fiber lapping machine 23 threes' relative position relation can also have the distortion of other form, as long as can form this non-woven fabrics fiber complex 40B on this holding lace curtaining 11.
Preferably, the fiber that this first hot-melt fiber lapping machine 21 and the second hot-melt fiber lapping machine 23 lappings are used is hot melt long fiber, the fiber that these hydrophilic fibre lapping machine 22 lappings are used is hydrophily staple fibre, wherein this hot melt long fiber is selected from polyamide fiber, polyamide fiber, polyester fiber, the meltblown fibers such as polyurethane fiber and mixing thereof, this hydrophily staple fibre is selected from Time of Fluff Slurry, cotton, kapok, coir fibre, chitin fiber, alginate fibre, ramie, jute, flax, wool, the natural fabrics such as silk and mixing and viscose etc. have hydrophilic artificial fibre and mixing thereof.
Preferably, the fibre density of this hydrophilic fiber layer 222 is less than the fibre density of this first hot-melt fiber layer 212 and the second hot-melt fiber layer 232.
Understandable, the fibrous material that forms this first hot-melt fiber layer 212 and the second hot-melt fiber layer 232 can be the same or different.
This consolidation unit 30 comprises hot gas source 31, multiple jet 32 and vaccum-pumping equipment 33, this consolidation unit 30 is carried out pulse heat air-spray for the non-woven fabrics fiber complex 40 to being laid by this lapping unit 20 and is impacted fixed to form compound nonwoven cloth absorber, at this, introduce the effect of these consolidation unit 30 all parts as an example of this non-woven fabrics fiber complex 40A in this non-woven fabrics fiber complex 40 with double-layer structure example.
This hot gas source 31 can make the softening pulse heat air-flow being clamminess of hot-melt fiber for providing.
In the present embodiment, this hot gas source 31 comprises gas generating unit 311 and impulse valve 312.Wherein, this gas generating unit 311 is for generation of the softening hot gas being clamminess of hot-melt fiber that can make in this non-woven fabrics fiber complex 40, this impulse valve 312 discharges for controlling the hot gas that this gas generating unit 311 produces, to send the softening pulse heat air-flow being clamminess of the hot-melt fiber that can make in this non-woven fabrics fiber complex 40.
In the present invention, the temperature of the hot-air that this hot gas source 31 ejects is not limited to a certain temperature range, it depends on the softening melt temperature that need to carry out fixed hot-melt fiber material, in general, the temperature of the hot-air that this hot gas source 31 ejects roughly within the scope of 70 ~ 350 DEG C time, can meet the softening demand being clamminess of most of hot-melt fibers that makes.
Understandable, in the present invention, make the compressed air source unit of the softening pulse heat air-flow being clamminess of hot-melt fiber can be applicable to the present invention as long as can produce.
The plurality of jet 32 is connected with this hot gas source 31, passes through to form the fine pulse heat air-spray 34 of multi beam for the pulse heat air-flow sending for this hot gas source 31.
In the present embodiment, the plurality of jet 32 is arranged on the top of holding lace curtaining 11 also vertically towards this first hot-melt fiber layer 212, so that the pulse heat air-spray 34 being ejected by this jet 32 can carry out vertical impact to this first hot-melt fiber layer 212.Certainly, this jet 32 also can out of plumb arrange towards this first hot-melt fiber layer 212.
In the present invention, by controlling distribution density and the arrangement mode of this jet 32 with respect to this first hot-melt fiber layer 212, density and the distribution mode of anchoring point in this compound nonwoven cloth absorber of anchoring point in this compound nonwoven cloth absorber after consolidation process be can control, pliability and the fluffy performance of compound nonwoven cloth absorbent product controlled with this.
In the time of work, the pulse heat air-spray 34 that the plurality of jet 32 ejects is in the process that the hot-melt fiber of this first hot-melt fiber layer 212 is impacted, the hot-melt fiber of this first hot-melt fiber layer 212, especially the surface fibre of this first hot-melt fiber layer 212, under the effect of this pulse heat air-spray 34, can softening be clamminess, and the softening surface fibre being clamminess of this first hot-melt fiber layer 212 can be under the impact of this pulse heat air-spray 34, bend and turn to along the impact direction of this pulse heat air-spray 34, and be brought into by this pulse heat air-spray 34 in the hydrophilic fiber layer 222 of lower floor, after cooling, the fiber entering in this hydrophilic fiber layer 222 will produce adhesive spots with this hydrophilic fiber layer 222, thereby this first hot-melt fiber layer 212 is consolidated with this hydrophilic fiber layer 222.And, under the impact of this pulse heat air-spray 34, can be formed trickle impact hole by shock zone along its thickness direction at this non-woven fabrics fiber complex 40, because the fiber of the first hot-melt fiber layer 212 bends and turns under impacting, so near the fiber architecture density of the fiber through-thickness this region is higher than other region, fiber architecture density is along its length lower than other region, and such fibre structure can well improve the rate of water absorption of the compound nonwoven cloth absorber made by this non-woven fabrics fiber complex 40.
When using this consolidation unit 30 to taking this hydrophilic fiber layer 222 as intermediate layer, this the first hot-melt fiber layer 212 and the second hot-melt fiber layer 232 respectively the non-woven fabrics fiber complex 40B of the folded three-layer sandwich structure that is located at these hydrophilic fiber layer 222 both sides carry out when fixed, this jet 32 can be arranged on to the both sides of this holding lace curtaining 11, impact fixed the two sides of this non-woven fabrics fiber complex 40B is all carried out to hot-air, thereby can form the compound nonwoven cloth absorber with good water absorbing properties, this compound nonwoven cloth absorber can be as the base material of once-used water-absorption amenities, as wet tissue, diaper etc.
Further, in this consolidation unit 30, this non-woven fabrics fiber complex 40 being carried out to heated air jets impacts in fixed process, can also enter into the degree of depth in this hydrophilic fiber layer 222 by regulating the impact strength of the pulse heat air-spray 34 that this consolidation unit 30 sprays to control the meldable fibre being softened in the first hot-melt fiber layer 212 and/or this second hot-melt fiber layer 232, so that the compound nonwoven cloth absorber 200 making meets different user demands.
Certainly, in the time that prepared compound nonwoven cloth absorber 200 has appearance requirement, the impact hole causing in this non-woven fabrics fiber complex 40 for fear of this pulse heat air-spray 34 leaves obvious hot-working vestige on the surface of this non-woven fabrics fiber complex 40, can control by controlling the internal diameter of this jet 32 diameter of this pulse heat air-spray 34, preferably, the internal diameter of this jet 32 is less than 1mm.
This vaccum-pumping equipment 33 is positioned at the below of this holding lace curtaining 11 and is oppositely arranged with the plurality of jet 32.This vaccum-pumping equipment 33 leads for the pulse heat air-spray 34 that the plurality of jet 32 is ejected, to improve directionality and the impact strength of this pulse heat air-spray 34.
Understandable, when the issuing velocity of the pulse heat air-spray 34 ejecting when the plurality of jet 32 and impact strength can meet technological requirement, this vaccum-pumping equipment 33 also can omit.
Refer to shown in Fig. 7 to Fig. 9, the present invention also provides the another kind of structure of this consolidation unit 30, and it comprises gas source 310 and housing 320.
This gas source 310 is roughly cylindric, and it has sidewall 313, offers the gas vent 314 that is axially strip extension along this gas source 310 on this sidewall 313, and this gas source 310 is passed through this gas vent 314 to extraneous heat outputting gas.
Be understandable that, in other embodiment, this gas vent 314 can also be multiple, and the axially spaced-apart along this gas source 310 distributes on this sidewall 313.
What this housing 320 was hollow is cylindric, and it is set on the sidewall 313 of this gas source 310 and can rotates relative to this gas source 310.
On this housing 320, offer the jet 321 mutual corresponding with this gas vent 314, in the time that relative this gas source 310 of this housing 320 turns to a certain position, this jet 321 can coincide with this gas vent 314, the hot gas of now being exported by this gas vent 314 via these jet 321 directive outsides to form heated air jets 322.
In the present embodiment, this housing 320 is relatively static, this gas source 310 under the effect of driving force in the interior rotation of this housing 320, set by setting the velocity of rotation of this gas source 310 interval time that this jet 321 overlaps with this gas vent 314, outwards spray to make this heated air jets 322 be impulse form.
Be understandable that, can also make this gas source 310 relatively static, and make its gas vent 314 towards non-woven fabrics fiber complex 40, then arrange this housing 320 is rotated, set by the velocity of rotation of this housing 320 is set the interval time that this jet 321 overlaps with this gas vent 314, outwards spray to make this heated air jets 322 be impulse form.
Be understandable that, can also make this gas source 310 there is respectively different velocities of rotation from this housing 320, as long as control respectively the rotary speed of this gas source 310 and this housing 320, so that this gas vent 314, when towards this non-woven fabrics fiber complex 40, just in time coincides to launch these heated air jets 322 to this non-woven fabrics fiber complex 40 with this jet 321.
Certainly, be understandable that, when state at the jet 321 of this housing 320 and the gas vent 314 of this gas source 310 in coinciding, also can be relative static between this housing 320 and this gas source 310, only need to control this gas source 310 according to certain frequency transmitted pulse thermal current.
It should be noted that, in the present embodiment, between this housing 320 and this gas source 310, can seal by sealing ring, the lubricated conventional seal form of wet goods mechanical field, to ensure when the gas vent 314 of this gas source 310 is not in the time coinciding with this jet 321, the hot gas that this gas source 310 provides can be by revealing in the fit clearance of this housing 320 and this gas source 310.
In the time that this non-woven fabrics fiber complex 40A is carried out to consolidation process, this consolidation unit 30 is arranged on to the top of this first hot-melt fiber layer 212, and make the jet 321 of this housing 320 towards this first hot-melt fiber layer 212, starting this gas source 310 makes it in the interior rotation of this housing 320, in the time that the gas vent 314 of this gas source 310 coincides with this jet 321, in this jet 321, will eject heated air jets 322 so that the hot-melt fiber of this first hot-melt fiber layer 212 is impacted, the hot-melt fiber of this first hot-melt fiber layer 212, especially the surface fibre of this first hot-melt fiber layer 212, under the effect of this heated air jets 322, can softening be clamminess, and the softening surface fibre being clamminess of this first hot-melt fiber layer 212 can be under the impact of this heated air jets 322, bend and turn to along the impact direction of this heated air jets 322, and be brought into by this heated air jets 322 in the hydrophilic fiber layer 222 of lower floor, after cooling, the fiber entering in this hydrophilic fiber layer 222 will produce adhesive spots with this hydrophilic fiber layer 222, thereby this first hot-melt fiber layer 212 is consolidated with this hydrophilic fiber layer 222.
Be understandable that, when this consolidation unit 30 is carried out consolidation process to this non-woven fabrics fiber complex 40, the vaccum-pumping equipment 330 corresponding with this jet 321 also can be set below this non-woven fabrics fiber complex 40, by this vaccum-pumping equipment 330 to being led by the heated air jets 322 ejecting in this jet 321, to improve directionality and the impact strength of this heated air jets 322.
Certainly, when consolidation process be the non-woven fabrics fiber complex 40B of the three-layer sandwich structure taking this hydrophilic fiber layer 222 as intermediate layer time, this consolidation unit 30 need to be all set in the both sides of this non-woven fabrics fiber complex 40B fixed the two sides of this non-woven fabrics fiber complex 40B is all carried out to hot-air impact, thereby can form the compound nonwoven cloth absorber with good water absorbing properties.
Same, can be by regulating this housing 320 and the speed that relatively rotates of this gas source 310 to set the pulse frequency of this heated air jets 322, and regulate this gas source 310 to control the impact strength of this heated air jets 322 to the speed of extraneous releasing heat air, thereby control the first hot-melt fiber layer 212 and or this second hot-melt fiber layer 232 in the meldable fibre that is softened enter into the degree of depth in this hydrophilic fiber layer 222 so that the compound nonwoven cloth absorber 200 making meets different user demands.
Certainly, can control by controlling the internal diameter of this jet 321 equally the diameter of this heated air jets 322, to avoid the impact hole that this heated air jets 322 is formed in this non-woven fabrics fiber complex 40 to leave obvious hot-working vestige on the surface of this non-woven fabrics fiber complex 40.
The invention still further relates to the technique and the compound nonwoven cloth absorber that use above-mentioned compound nonwoven cloth absorber production equipment to prepare compound nonwoven cloth absorber.
It should be noted that, in embodiment provided by the present invention, adopt heated air jets to represent the hot gas being ejected by consolidation unit, but, this does not also mean that the thermal current that compound nonwoven cloth absorber production equipment provided by the present invention sprays is only hot-air, and it can also be anyly can under heated condition, soften the gas of impact to non-woven fabrics fiber.
Compared with prior art, this compound nonwoven cloth absorber production equipment provided by the present invention, technique and compound nonwoven cloth absorber, it is by adopting pulse heat air-spray to carry out fixed to the non-woven fabrics fiber complex that includes hot-melt fiber material, make this hot-melt fiber first soften and be clamminess under the impact of this pulse heat air-spray, then under the drive of this pulse heat air-spray, bend and turn to the thickness direction of this non-woven fabrics fiber complex, and under the drive of this pulse heat air-spray, enter into the fibrage of lower floor bonding fixed with the fiber of lower floor fibrage.And because heated air jets used in the present invention is to impact fixed with the form of pulse to non-woven fabrics fiber complex, therefore, in the direction of advance of non-woven fabrics fiber complex, can not form continuous hot melt region, avoid hot-melt fiber adhesion in flakes or the phenomenon of slivering, and can be by the pulse frequency of distribution density, distribution mode and the heated air jets of control jet, control density and the distribution of the anchoring point in non-woven fabrics fiber complex, control pliability and the fluffy performance of prepared compound nonwoven cloth absorber with this.In addition, under the impact of the pulse heat air-spray of this compound nonwoven cloth consolidation device, non-woven fabrics fiber complex by shock zone, can form trickle impact hole along its thickness direction, and turning to of hot-melt fiber also can cause this fiber architecture density of being impacted near fiber through-thickness hole higher than other region, fiber architecture density is along its length lower than other region, and such fibre structure can well improve the rate of water absorption of compound nonwoven cloth absorber.Further, at this compound nonwoven cloth absorber production equipment, this non-woven fabrics fiber complex being carried out to heated air jets impacts in fixed process, can also enter into the degree of depth in hydrophilic fiber layer and impact the diameter of hole by regulating the impact strength of pulse heat air-spray that the consolidation unit of this compound nonwoven cloth absorber production equipment sprays and the diameter of pulse heat air-spray to control the meldable fibre being softened in hot-melt fiber layer, so that the compound nonwoven cloth absorber making meets different user demands.
In addition, those skilled in the art also can do other variation in spirit of the present invention.Therefore the variation that these do according to spirit of the present invention, within all should being included in the present invention's scope required for protection.
Claims (24)
1. a compound nonwoven cloth absorber production equipment, it comprises:
Transmission unit, it comprises holding lace curtaining, it is for carrying non-woven fabrics fiber complex according to scheduled transmission direction;
Lapping unit, it comprises the first hot-melt fiber lapping machine and hydrophilic fibre lapping machine, this the first hot-melt fiber lapping machine is used for exporting the first hot-melt fiber and flows to form the first hot-melt fiber layer, this hydrophilic fibre lapping machine is used for exporting hydrophilic fibre and flows to form hydrophilic fiber layer, this lapping unit for forming this non-woven fabrics fiber complex on this holding lace curtaining, this the first hot-melt fiber lapping machine relatively this hydrophilic fibre lapping machine is obliquely installed, so that this first hot-melt fiber stream formed stacked interflow with this hydrophilic fibre stream before arriving this holding lace curtaining, thereby directly on this holding lace curtaining, form the non-woven fabrics fiber complex being formed by this first hot-melt fiber layer and this hydrophilic fiber layer stacked on top of one another, this non-woven fabrics fiber complex is at least formed by this first hot-melt fiber layer and this hydrophilic fiber layer stacked on top of one another,
Consolidation unit, this consolidation unit comprises hot gas source, jet and with the heating pipe that is connected this hot gas source and this jet, this hot gas source is used for providing pulse heat air-flow, this jet is for passing through to form at least a branch of pulse heat gas jet for this pulse heat air-flow, this at least one beam pulse thermal current is for carrying out jet impact to this non-woven fabrics fiber complex, so that the hot-melt fiber of this first hot-melt fiber layer is softening, and the hot-melt fiber after softening is brought in this hydrophilic fiber layer and formed anchoring point, and, under the impact of described pulse heat air-flow, the territory through-thickness that impacted of described non-woven fabrics fiber complex forms trickle impact hole.
2. compound nonwoven cloth absorber production equipment as claimed in claim 1, it is characterized in that: this lapping unit further comprises the second hot-melt fiber lapping machine, this the second hot-melt fiber lapping machine is used for exporting the second hot-melt fiber and flows to form the second hot-melt fiber layer, and this second hot-melt fiber layer is for matching to form the non-woven fabrics fiber complex of the three-layer sandwich structure taking this hydrophilic fiber layer as intermediate layer in the middle of this hydrophilic fiber layer sandwiched with this first hot-melt fiber layer.
3. compound nonwoven cloth absorber production equipment as claimed in claim 2, it is characterized in that: this first hot-melt fiber lapping machine and this second hot-melt fiber lapping machine respectively relative this hydrophilic fibre lapping machine tilt to be symmetrical arranged, so that this first hot-melt fiber stream, hydrophilic fibre stream and the second hot-melt fiber stream formed the three superimposed streams layer by layer taking this hydrophilic fibre stream as intermediate layer before reaching this holding lace curtaining, thereby directly on this holding lace curtaining, form the non-woven fabrics fiber complex of the three-layer sandwich structure taking this hydrophilic fiber layer as intermediate layer.
4. compound nonwoven cloth absorber production equipment as claimed in claim 2, it is characterized in that: this first hot-melt fiber lapping machine and this second hot-melt fiber lapping machine are separately positioned on the both sides of this hydrophilic fibre lapping machine, and be crisscross arranged in the direction perpendicular to this holding lace curtaining, with before this holding lace curtaining of arrival, make this first hot-melt fiber stream and this hydrophilic fibre stream first form two laminated streams, then this second hot-melt fiber stream forms the three laminated streams taking this hydrophilic fibre stream as intermediate layer with this two-layer interflow, thereby directly on this holding lace curtaining, form the non-woven fabrics fiber complex of the three-layer sandwich structure taking this hydrophilic fiber layer as intermediate layer.
5. compound nonwoven cloth absorber production equipment as claimed in claim 2, it is characterized in that: this first hot-melt fiber lapping machine relatively this hydrophilic fibre lapping machine is obliquely installed, so that this first hot-melt fiber stream formed two-layer interflow with this hydrophilic fibre stream before arriving this holding lace curtaining, directly to form the mutual stacked two layer web of this first hot-melt fiber layer and this hydrophilic fiber layer on this holding lace curtaining, and this first hot-melt fiber laminating is leaned against on this holding lace curtaining, this the second hot-melt fiber lapping machine arranges towards this holding lace curtaining, establish this second hot-melt fiber layer with the hydrophilic fiber layer upper strata lay-up in this two layer web, thereby form the non-woven fabrics fiber complex of the three-layer sandwich structure taking this hydrophilic fiber layer as intermediate layer.
6. compound nonwoven cloth absorber production equipment as claimed in claim 1, it is characterized in that: this at least one beam pulse hot gas jet is for carrying out jet impact to this non-woven fabrics fiber complex, be clamminess so that the hot-melt fiber on this non-woven fabrics fiber complex top layer is softening, and under the drive of this at least one beam pulse thermal current, turn to and enter the inside formation anchoring point of this non-woven fabrics fiber complex along the injection direction bending of this pulse heat air-flow.
7. compound nonwoven cloth absorber production equipment as claimed in claim 6, it is characterized in that: this hot gas source comprises gas generating unit and impulse valve, this gas generating unit is for generation of making the softening hot gas being clamminess of hot-melt fiber, this impulse valve discharges for controlling the hot gas that this gas generating unit produces, to form this at least one beam pulse thermal current.
8. compound nonwoven cloth absorber production equipment as claimed in claim 6, it is characterized in that: this hot gas source comprises a gas source and is set in this gas source housing around, this housing and this gas source have and relatively rotate, this gas source is used for providing hot gas, this gas source has gas vent for export this hot gas to the external world, this jet is opened on this housing mutually corresponding with this gas vent, in the time that this jet turns to the position overlapping with this gas vent, the hot gas that this gas source provides penetrates to form at least a branch of hot gas jet from this jet.
9. compound nonwoven cloth absorber production equipment as claimed in claim 7 or 8, it is characterized in that: this consolidation unit further comprises vaccum-pumping equipment, this vaccum-pumping equipment and this jet are oppositely arranged, for the hot gas jet that this jet ejects is certainly led.
10. compound nonwoven cloth absorber production equipment as claimed in claim 8, it is characterized in that: this gas source has cylindrical sidewall, this gas vent is opened in axially extending continuously on the sidewall of this gas source and along this gas source, this housing is set on the sidewall of this gas source, and this jet is opened on this housing and along the axially spaced-apart of this housing and extends and distribute.
11. 1 kinds of compound nonwoven cloth absorber preparation technologies, it comprises the steps:
Multiple fibre stream is provided, and this multiple fibre stream comprises the first hot-melt fiber stream and hydrophilic fibre stream, and this first hot-melt fiber stream is used to form the first meldable fibre layer, and this hydrophilic fibre stream is used to form hydrophilic fiber layer;
Utilize this multiple fibre stream on holding lace curtaining, to form non-woven fabrics fiber complex, this non-woven fabrics fiber complex is at least formed by this first hot-melt fiber layer and this hydrophilic fiber layer stacked on top of one another; In the step of this non-woven fabrics fiber complex of formation, before arriving this holding lace curtaining, make this hydrophilic fibre stream and this first hot-melt fiber stream form two-layer laminate interflow, thereby directly on this holding lace curtaining, form the non-woven fabrics fiber complex by this first hot-melt fiber layer and this hydrophilic fiber layer stacked on top of one another
One consolidation unit is provided, this consolidation unit comprise hot gas source, jet and with the heating pipe that is connected this hot gas source and this jet, this hot gas source is used for providing pulse heat air-flow, and this jet is for passing through to form at least a branch of pulse heat gas jet for this pulse heat air-flow;
Utilize this at least one beam pulse thermal current to spray this non-woven fabrics fiber complex, be clamminess so that the hot-melt fiber on this non-woven fabrics fiber complex top layer is softening, and the inside formation anchoring point that turns to and enter this non-woven fabrics fiber complex under the drive of this at least one beam pulse thermal current along the injection direction bending of this pulse heat air-flow, and, under the impact of described pulse heat air-flow, the territory through-thickness that impacted of described non-woven fabrics fiber complex forms trickle impact hole.
12. compound nonwoven cloth absorber preparation technologies as claimed in claim 11, it is characterized in that: this multiple fibre stream further comprises the second hot-melt fiber stream, this the second hot-melt fiber stream is used to form the second meldable fibre layer, and this second hot-melt fiber stream, hydrophilic fibre stream and the first hot-melt fiber stream cooperatively interact on this holding lace curtaining, to form the non-woven fabrics fiber complex of the three-layer sandwich structure taking this hydrophilic fiber layer as intermediate layer.
13. compound nonwoven cloth absorber preparation technologies as claimed in claim 12, it is characterized in that: in the step of this non-woven fabrics fiber complex of formation, before arriving this holding lace curtaining, make this first hot-melt fiber stream, hydrophilic fibre stream and the second hot-melt fiber stream jointly form the three superimposed stream districts layer by layer taking this hydrophilic fibre stream as intermediate layer, thus direct on this holding lace curtaining the non-woven fabrics fiber complex of the three-layer sandwich structure of formation taking this hydrophilic fiber layer as intermediate layer.
14. compound nonwoven cloth absorber preparation technologies as claimed in claim 12, it is characterized in that: in the step of this non-woven fabrics fiber complex of formation, before arriving this holding lace curtaining, make this first hot-melt fiber stream and this hydrophilic fibre stream first form two-layer laminate interflow district, make afterwards this second hot-melt fiber stream and this two-layer laminate interflow district form the three superimposed stream districts layer by layer taking this hydrophilic fibre stream as intermediate layer, thus the direct non-woven fabrics fiber complex of the three-layer sandwich structure of formation taking this hydrophilic fiber layer as intermediate layer on this holding lace curtaining.
15. compound nonwoven cloth absorber preparation technologies as claimed in claim 12, it is characterized in that: in the step of this non-woven fabrics fiber complex of formation, before arriving this holding lace curtaining, make this first hot-melt fiber stream and this hydrophilic fibre stream first form two-layer laminate interflow district, directly to form the two layer web by this first hot-melt fiber layer and this hydrophilic fiber layer stacked on top of one another on this holding lace curtaining, and then utilize this second hot-melt fiber to flow stacked formation the second hot-melt fiber layer on the hydrophilic fiber layer in this two layer web, thereby on this holding lace curtaining, form the non-woven fabrics fiber complex of the three-layer sandwich structure taking this hydrophilic fibre stream as intermediate layer.
16. compound nonwoven cloth absorber preparation technologies as claimed in claim 11, it is characterized in that: this at least one beam pulse hot gas jet is for carrying out jet impact to this non-woven fabrics fiber complex, be clamminess so that the hot-melt fiber on this non-woven fabrics fiber complex top layer is softening, and under the drive of this at least one beam pulse thermal current, turn to and enter the inside formation anchoring point of this non-woven fabrics fiber complex along the injection direction bending of this pulse heat air-flow.
17. compound nonwoven cloth absorber preparation technologies as claimed in claim 16, it is characterized in that: this hot gas source comprises gas generating unit and impulse valve, this gas generating unit is for generation of making the softening hot gas being clamminess of hot-melt fiber, this impulse valve discharges for controlling the hot gas that this gas generating unit produces, to form this at least one beam pulse thermal current.
18. compound nonwoven cloth absorber preparation technologies as claimed in claim 16, it is characterized in that: this hot gas source comprises a gas source and is set in this gas source housing around, this housing rotates relative to this gas source, this gas source is used for providing hot gas, this gas source has gas vent for export this hot gas to the external world, this jet is opened on this housing mutually corresponding with this gas vent, in the time that this jet turns to the position overlapping with this gas vent, the hot gas that this gas source provides penetrates to form at least a branch of hot gas jet from this jet.
19. compound nonwoven cloth absorber preparation technologies as described in claim 17 or 18, it is characterized in that: this consolidation unit further comprises vaccum-pumping equipment, this vaccum-pumping equipment and this jet are oppositely arranged, for the hot gas jet that this jet ejects is certainly led.
20. compound nonwoven cloth absorber preparation technologies as claimed in claim 18, it is characterized in that: this gas source is cylindric, this gas vent is opened in axially extending continuously on the sidewall of this gas source and along this gas source, this housing is set on the sidewall of this gas source, and this jet is opened on this housing and along the axially spaced-apart of this housing and extends and distribute.
21. 1 kinds of compound nonwoven cloth absorbers, it comprises the first hot-melt fiber layer and hydrophilic fiber layer, this the first hot-melt fiber layer and this hydrophilic fiber layer stacked on top of one another arrange, and the density of this first hot-melt fiber layer is greater than the density of this hydrophilic fiber layer, this the first hot-melt fiber layer surface has the micropore extending along the thickness direction of this compound nonwoven cloth absorber, at this micropore place, the hot-melt fiber of this first hot-melt fiber layer extends in this hydrophilic fiber layer and forms hot sticky fixed with this hydrophilic fiber layer along this micropore.
22. compound nonwoven cloth absorbers as claimed in claim 21, it is characterized in that: this compound nonwoven cloth absorber further comprises the second hot-melt fiber layer, this second hot-melt fiber layer and this first hot-melt fiber layer are layered in respectively the both sides of this hydrophilic fiber layer to form the compound nonwoven cloth absorber of the three-layer sandwich structure taking this hydrophilic fiber layer as intermediate layer.
23. compound nonwoven cloth absorbers as claimed in claim 22, it is characterized in that: have the micropore extending along the thickness direction of this compound nonwoven cloth absorber in the surface distributed of this second hot-melt fiber layer, at this micropore place, the hot-melt fiber of this second hot-melt fiber layer extends in this hydrophilic fiber layer and forms hot sticky fixed with this hydrophilic fiber layer along this micropore.
24. compound nonwoven cloth absorbers as described in claim 21 to 23 any one, it is characterized in that: in this compound nonwoven cloth absorber, the fiber architecture density of the fiber through-thickness of this micropore region is higher than other region, and fiber architecture density is along its length lower than other region.
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| CN103046230B (en) * | 2012-12-25 | 2016-04-13 | 山东俊富非织造材料有限公司 | The manufacture method of meltblown fibers and the online compound of bombax cotton and heat insulating material formed |
| CN103422259B (en) * | 2013-09-09 | 2016-05-11 | 昆山胜昱无纺布有限公司 | Nonwoven streamline |
| EP3159444B1 (en) * | 2014-06-17 | 2020-07-29 | Kuraray Co., Ltd. | Water absorbent laminate and method for producing same |
| CN110016767B (en) * | 2019-04-10 | 2020-10-16 | 武汉纺织大学 | Preparation method of gas-spraying solid-knot type high-adsorption non-woven fabric and high-adsorption non-woven fabric |
| CN111334927A (en) * | 2019-04-10 | 2020-06-26 | 浙江艾伦新材料有限公司 | High-elastic filling material formed by airflow consolidation and preparation method thereof |
| CN110067078B (en) * | 2019-04-10 | 2020-10-16 | 武汉纺织大学 | Preparation method of air-jet consolidation type antibacterial non-woven fabric and antibacterial non-woven fabric |
| CN111748913B (en) * | 2020-02-13 | 2021-03-30 | 晋江市胜洋服装织造有限公司 | Fiber spinning equipment and spinning method |
| CN111286868A (en) * | 2020-03-30 | 2020-06-16 | 嘉兴市阿福纺织品有限公司 | From taking antibacterial bonded melt-blown fabric and melt-blown preparation facilities |
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| US5306545A (en) * | 1991-12-11 | 1994-04-26 | Mitsui Petrochemical Industries, Ltd. | Melt-blown non-woven fabric and laminated non-woven fabric material using the same |
| JP4145203B2 (en) * | 2003-06-17 | 2008-09-03 | 花王株式会社 | Absorbent articles |
| JP5201532B2 (en) * | 2008-03-19 | 2013-06-05 | Ｊｎｃ株式会社 | Elastic laminate sheet |
| CN101787619B (en) * | 2010-03-05 | 2011-09-28 | 浙江三弘集团有限公司 | Three-layer sandwiched composite eiderdown flake and manufacturing method thereof |
| JP5477123B2 (en) * | 2010-04-02 | 2014-04-23 | Ｊｎｃ株式会社 | Hot air processing nonwoven fabric processing apparatus and processing method |
| CN102747537B (en) * | 2011-12-20 | 2015-07-22 | 金红叶纸业集团有限公司 | Composite non-woven fabric consolidation equipment and process |
| CN202380234U (en) * | 2011-12-23 | 2012-08-15 | 金红叶纸业集团有限公司 | Composite non-woven fabric absorber and production equipment thereof |
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