WO2017206177A1 - 超柔疏水无纺布的生产系统及生产方法 - Google Patents

超柔疏水无纺布的生产系统及生产方法 Download PDF

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WO2017206177A1
WO2017206177A1 PCT/CN2016/084736 CN2016084736W WO2017206177A1 WO 2017206177 A1 WO2017206177 A1 WO 2017206177A1 CN 2016084736 W CN2016084736 W CN 2016084736W WO 2017206177 A1 WO2017206177 A1 WO 2017206177A1
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layer
fiber layer
super
nonwoven fabric
fiber
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PCT/CN2016/084736
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English (en)
French (fr)
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唐新雄
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佛山市格菲林卫材科技有限公司
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Priority to PCT/CN2016/084736 priority Critical patent/WO2017206177A1/zh
Publication of WO2017206177A1 publication Critical patent/WO2017206177A1/zh

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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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating

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  • the invention relates to the production of non-woven fabrics, in particular to a production system and a production method of a super-soft hydrophobic nonwoven fabric.
  • the existing water-repellent nonwoven fabric SMS is provided with a water repellent material between two layers of anti-adhesive fibers, and then bonded by thermocompression bonding.
  • the two-layer fiber raw material of the water-repellent non-woven fabric is usually a hot-pressed non-woven fabric, and the hot-pressed non-woven fabric undergoes one-time roll bonding at the time of production, and the hot-pressed non-woven fabric undergoes another rolling pressure during production Bonding, the water-repellent non-woven fabric produced by this process has a relatively high hardness and a relatively poor skin-friendly property, and when it is applied to the protection of a diaper or a sanitary napkin, the comfort of the product is affected.
  • An object of the present invention is to provide a production system and a production method of a super-soft hydrophobic nonwoven fabric, which can at least solve one of the above problems.
  • a production system of a super soft hydrophobic nonwoven fabric comprising a first fiber layer generating system, a second fiber layer generating system, a melt blowing device and a heat sealing mechanism
  • a fiber layer generating system produces a first fiber layer
  • a second fiber layer generating system produces a second fiber layer
  • a meltblowing device produces a meltblown layer
  • a meltblown layer is between the first fiber layer and the second fiber layer
  • the meltblown layer and the second fiber layer are simultaneously input into the hot-rolling mechanism for hot-bonding
  • the melt-blown device comprises a connected extruder and a melt-blown die, and the melt-blown die is located at the first fiber layer and the second fiber layer between.
  • the first fiber layer generating system and the second fiber layer generating system generate or export the first fiber layer and the second fiber layer, and then pass through the melt nozzle and the heat-drawing mechanism, and perform only one hot pressing, so that the water-repellent non-woven fabric Has a good softness.
  • the heat-drawing mechanism includes a light roller and a flower roller, and the surface of the flower roller is provided with a plurality of elongated strips that are evenly arranged in a staggered manner. Therefore, the strip surface of the flower roll is used to increase the distance between the tie points, thereby further improving the bulkiness and softness of the heat-treated finished nonwoven fabric.
  • the tie bars have a length of from 3.5 to 4.5 mm, preferably a length of 4.0 mm.
  • the width of the tie bars is 0.2-0.3 mm, and the tie bars are arranged in multiple rows, and the spacing between adjacent two tie bars in each row of the tie bars is 2.0-3.0 mm.
  • the long width and spacing of the suitable strands ensure a good degree of adhesion of the layers of the nonwoven fabric and also ensure the bulkiness and softness of the nonwoven fabric.
  • one end of the tie bar is A end, and the other end of the tie bar is B end, each row
  • the A end of the tie bar is in a straight line
  • the B end of each row of the bar is in a straight line
  • the adjacent two rows of the bar are staggered
  • the A end of one row of the bar extends into the B end of the other row of the bar.
  • the length of the extension is 1 mm.
  • the first fiber layer generating system includes a first unpacking machine, a first opening machine, a first carding machine, and a first guiding mechanism, and the fibers sequentially pass through the first unpacking machine, the first opening machine, and the first After the carding machine and the first fiber layer are formed, the first guiding mechanism is transported to the heat sealing mechanism, and the first fiber layer is a fiber mesh layer.
  • the first fibrous layer generating system can produce a first fibrous layer in the form of a fibrous web.
  • the second fibrous layer generating system includes a second unpacking machine, a second opening machine, a second carding machine, and a second guiding mechanism, and the fibers sequentially pass through the second opener, the second opener, and the second After the carding machine, a second fiber layer is formed, which is then transported to the heat-drawing mechanism via a second guiding mechanism, and the second fiber layer is a fiber mesh layer.
  • the second fibrous layer generating system can produce a second fibrous layer in the form of a fibrous web.
  • the first fiber layer generating system includes a first fiber layer unwinding mechanism and a first guiding mechanism, the first fiber layer unwinding mechanism corresponding to the position of the first guiding mechanism, and the first fiber layer is hot air non-woven cloth.
  • the second fibrous layer generating system includes a second fibrous layer unwinding mechanism and a second guiding mechanism, the second fibrous layer unwinding mechanism corresponds to the position of the second guiding mechanism, and the second fibrous layer is hot air non-woven cloth.
  • a suction device is disposed below the meltblown die, and the first fiber layer is located between the meltblown die and the air extracting device. Thereby, the air blowing device can ensure that the hot melt material sprayed from the melt blowing die adheres better to the fiber layer.
  • a method of producing a supersoft hydrophobic nonwoven fabric comprising the steps of:
  • the first fiber layer and the second fiber layer are respectively produced or output by the first fiber layer generating system, the second fiber layer generating system, and the melt blowing device sprays the hot melt material on the second fiber layer to form a meltblown layer;
  • the first fiber layer, the second fiber layer and the meltblown layer are thermally entangled by a hot-rolling mechanism to form an ultra-soft super-soft hydrophobic nonwoven fabric
  • the above production method has a simple step, and the single hot pressing of the fiber layer ensures that the water-repellent nonwoven fabric has good softness.
  • the invention has the beneficial effects that the production system of the super-soft hydrophobic nonwoven fabric is such that the fibrous layer is hot-pressed to obtain a hydrophobic non-woven fabric, so that the hydrophobic non-woven fabric has good flexibility and enhances the comfort of the diaper sanitary napkin and the like.
  • the production system has a simple structure and is easy to operate, and its production method steps simple.
  • FIG. 1 is a schematic structural view of a production system of a super-soft hydrophobic nonwoven fabric according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic view showing the surface unfolding structure of a flower roll of the production system of the super-soft hydrophobic nonwoven fabric shown in FIG. 1;
  • Figure 3 is a schematic view showing the structure of a production system of a super-soft hydrophobic nonwoven fabric according to Example 2 of the present invention.
  • FIG. 1 and 2 schematically show a production system of a super-soft hydrophobic nonwoven fabric of an embodiment method of the present invention.
  • the production system of the super-soft hydrophobic nonwoven fabric of the present embodiment includes a first fiber layer generating system 1, a second fiber layer generating system 2, a melt blowing device 3, and a heat-drawing mechanism 4,
  • the first fibrous layer generating system 1 produces a first fibrous layer 5
  • the second fibrous layer generating system 2 produces a second fibrous layer 6
  • the meltblowing device 3 produces a meltblown layer 7, and the meltblown layer 7 is located at the first fibrous layer 5 and Between the two fiber layers 6, the first fiber layer 5, the melt blown layer 7, and the second fiber layer 6 are collectively input into the heat-drawing mechanism 4 for heat-bonding.
  • the first fiber layer generating system 1 includes a first unpacking machine 11, a first opening machine 12, a first carding machine 13, and a first guiding mechanism 14, and the fibers sequentially pass through the first unpacking machine 11, the first opening machine 12, and the first After the carding machine 13, a first fiber layer 5 is formed, and then conveyed to the heat-drawing mechanism 4 via the first guiding mechanism 14, and the first fiber layer 5 of the present embodiment is a fiber mesh layer.
  • the first opening machine 12 includes a rough opening machine and a fine opening machine.
  • the fibers are passed through a coarse opening machine and a fine opening machine in order to fully open the fibers.
  • the first mixing box 15 and the first vibrating air box 16 are sequentially disposed between the first opening machine 12 and the first carding machine 13 to sufficiently loose the fibers.
  • the structure of the second fiber layer generating system 2 is the same as that of the first fiber layer generating system 1.
  • the second fibrous layer generating system 2 includes a second unpacking machine 21, a second opening machine 22, a second carding machine 23, a second guiding mechanism 24, a second mixing cotton box 25, and a second shock pressure cotton box 26.
  • the fibers sequentially pass through the second unpacking machine 21, the second opening machine 22, the second mixing cotton box 25, the second vibration air box 26, and the second carding machine 23 to form the second fiber layer 6, and then pass through the second guiding mechanism 24. It is conveyed to the heat-drawing mechanism 4, and the second fiber layer 6 of the present embodiment is a fiber mesh layer.
  • the meltblowing device 3 includes an associated extruder 31 and a meltblowing die 32, and the meltblowing die 32 is located between the first fibrous layer 5 and the second fibrous layer 6.
  • An air blowing device 33 is disposed below the melt blowing die 32, and the second fiber layer 6 is located between the meltblowing die 32 and the air extracting device 33. Installed in the air extracting device 33 Fan. The air blowing device 33 can ensure that the hot melt material sprayed by the melt blowing die 32 is better adhered to the fiber layer, preventing the hot melt material from being scattered and wasted.
  • the extruder 31 is provided with a screw box and a drive motor.
  • the hot melt material is introduced into the screw box, and the discharge end of the screw box is connected to the melt blow die 32.
  • the screw box has a heating mechanism that heats the hot melt material into a fluid.
  • the drive motor drives the screw to cause the hot melt material to be ejected from the melt blow die 32.
  • the heat-drawing mechanism 4 includes a light roller 41 and a flower roller 42, and the flower roller 42 and the light roller 41 are each provided with a heating device.
  • the heating device is a heat transfer oil heating method, and is located inside the flower roll 42 and the light roll 41. Both the light roller 41 and the flower roller 42 are steel rollers.
  • the first fiber layer 5, the second fiber layer 6, and the melt blown layer 7 between the two are passed between the flower roll 42 and the optical roll 41, and subjected to a single hot pressing to obtain a hydrophobic nonwoven fabric.
  • the surface of the smoothing roller 41 and the flower roller 42 is provided with a plurality of elongated strips 421 which are evenly arranged in a staggered manner.
  • the length of the tie bars 421 is 3.5 to 4.5 mm, preferably 4.0 mm.
  • the width of the tie bars 421 is 0.2-0.3 mm, and the tie bars 421 are arranged in a plurality of rows, and the spacing between adjacent two tie bars 421 in each row of tie bars 421 is 2.0-3.0 mm.
  • one end of the tie bar 421 is an A end 4211, and the other end of the tie bar 421 is a B end 4212.
  • the A end 4211 of each row of strips 421 is in a straight line, and the B end 4212 of each row of strips 421 is in a strip.
  • the adjacent two rows of the strips 421 are staggered, and the A end 4211 of one row of strips 421 extends into the middle between the B ends 4212 of the other row of strips 421, and the length of the row of the strips is 0.5 to 1.5 mm, preferably extending.
  • the length of the entry is 1mm.
  • the flower roll 42 having the staggered shape bar 421 is combined with the light roll 41 to form a hydrophobic nonwoven fabric having a strip-shaped indentation, and while ensuring a tight connection between the layers of the hydrophobic nonwoven fabric,
  • the distance between the pressing points on the nonwoven fabric is increased from the distance between the pressing points of the conventional water-repellent nonwoven fabric, and the first fibrous layer 5 and the second fibrous layer 6 on both sides of the melt-blown layer 7 can be obtained. Keep it fluffy and soft.
  • the output of the heat-drawing mechanism 4 is also provided with a cooling device 8, a winder 9, a slitter and a packaging machine.
  • the slitter and the packaging machine are not shown in the drawings.
  • PE/PP sheath-core composite fiber and/or PE/PET sheath-core composite fiber are unpacked through the first opener 11 and coarsely opened and finely opened by the first opening machine 12, After the first mixed cotton box 15 and the first shock pressure cotton box 16 and the first card machine 13 to form a first fiber layer 5;
  • the PE/PP sheath core type composite fiber and/or the PE/PET sheath core type composite fiber are unpacked through the second unpacking machine 21, and the second opening machine 22 is used for rough opening and fine opening, and then by the second The second mixed cotton box 25 and the second vibrating air box 26 and the second card 23 form a second fibrous layer 6;
  • meltblown fiber is extruded through the extruder 31 and sprayed on the upper surface of the second fiber layer 6 through the melt blowing die 32 to form a melt blown layer 7; the meltblown layer 7 is tightly attached by suction by the suction device 33.
  • the first fiber layer 5, the melt blown layer 7, and the second fiber layer 6 are thermally entangled between the optical roll 41 of the heat-drawing mechanism 4 and the flower roll 42, thereby forming an ultra-soft super-soft hydrophobic nonwoven fabric.
  • the heating temperature of the flower roll 42 of the heat-drawing mechanism 4 is 130 to 140 ° C, and the heating temperature of the light roller is 125 to 128 ° C.
  • the super soft hydrophobic nonwoven fabric is cooled and then wound up.
  • the super-soft hydrophobic nonwoven fabric output from the heat-drawing mechanism 4 is cooled by the cooling device 8 and then sent to the winder 9 for winding.
  • the wound non-woven fabric is slit into a width on a slitter and then packaged on a packaging machine.
  • Fig. 3 schematically shows a production system of a super-soft hydrophobic nonwoven fabric according to another embodiment of the present invention.
  • the first fiber layer generating system 1 includes a first fiber layer unwinding mechanism 15 and a first guiding mechanism 14, and the first fiber layer unwinding mechanism 15 and the first guiding mechanism 14 are positioned.
  • the first fiber layer 5 is an air-through nonwoven fabric.
  • the second fiber layer generating system 2 includes a second fiber layer unwinding mechanism 25 and a second guiding mechanism 24, the second fiber layer unwinding mechanism 25 corresponds to the position of the second guiding mechanism 24, and the second fiber layer 6 is hot air non-woven. cloth.
  • the rest of the structure is the same as that of the first embodiment.
  • the production method of the production system of the super-soft hydrophobic nonwoven fabric according to the present embodiment includes the following steps:
  • the first fibrous layer unwinding mechanism 15 and the second fibrous layer unwinding mechanism 25 are respectively wound with an air-through nonwoven fabric, and the hot air non-woven fabric is output through the first fibrous layer unwinding mechanism 15 and the first guiding mechanism 14 as The first fibrous layer 5; the hot air non-woven fabric is output as the second fibrous layer 6 via the second fibrous layer unwinding mechanism 25 and the second guiding mechanism 24;
  • meltblown fiber is extruded through the extruder 31 and sprayed on the upper surface of the second fiber layer 6 through the melt blowing die 32 to form a melt blown layer 7; the meltblown layer 7 is tightly attached by suction by the suction device 33.
  • the first fiber layer 5, the melt blown layer 7, and the second fiber layer 6 are thermally entangled between the optical roller 41 of the heat-drawing mechanism 4 and the flower roll 42, thereby forming an ultra-soft super-soft hydrophobic nonwoven fabric.
  • the heating temperature of the flower roll 42 of the heat-drawing mechanism 4 is 130 to 140 ° C, and the heating temperature of the light roller is 125 to 128 ° C.
  • the super soft hydrophobic nonwoven fabric is cooled and then wound up.
  • the super-soft hydrophobic nonwoven fabric output from the heat-drawing mechanism 4 is cooled by the cooling device 8 and then sent to the winder 9 for winding.
  • the wound non-woven fabric is slit into a width on a slitter and then packaged on a packaging machine.
  • the first fiber layer 5 and the second fiber layer 6 of the super-soft hydrophobic nonwoven fabric produced by the system and method of the present invention have a basis weight of 6 to 8 g/m 2 and the melt-blown layer 7 has a basis weight of 3 ⁇ 4 g/m 2 ; total thickness 0.5-0.8 mm; water pressure height of impermeability water is 150 mm to 200 mm.
  • It is a lightweight, ultra-soft hydrophobic nonwoven fabric. It is non-irritating to human skin, has good air permeability and good anti-seepage performance. It is especially suitable for anti-seepage materials that are in contact with human skin, such as anti-side leakage materials such as diapers and sanitary napkins. It can also be used for surgical gowns and protection. Raw materials for sanitary products such as clothing and masks.

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  • Nonwoven Fabrics (AREA)

Abstract

一种超柔疏水无纺布的生产系统及其生产方法，该系统包括第一纤维层产生系统（1）、第二纤维层产生系统（2）、熔喷装置（3）和热轧机构（4），第一纤维层产生系统（1）产生第一纤维层（5），第二纤维层产生系统（2）产生第二纤维层（6），熔喷装置（3）产生熔喷层（7），熔喷层（7）位于第一纤维层（5）和第二纤维层（6）之间，第一纤维层（5）、熔喷层（7）和第二纤维层（6）一并输入热轧机构（4）进行热轧，熔喷装置（3）包括相连接的挤出机（31）和热熔喷模头（32），熔喷模头（32）位于第一纤维层（5）和第二纤维层（6）之间。由于纤维层仅经一次热轧即制得超柔疏水无纺布，使得超柔疏水无纺布具有很好的柔软性，增强产品的舒适度。其生产系统结构简单、易于操作，其生产方法步骤简单。

Description

超柔疏水无纺布的生产系统及生产方法 技术领域
本发明涉及无纺布生产，特别涉及一种超柔疏水无纺布的生产系统及生产方法。
背景技术
现有的拒水无纺布SMS是在两层防粘纤维之间设置拒水材料，然后经热压粘合。拒水无纺布的两层纤维原料通常采用热压无纺布，热压无纺布在生产时经历一次辊压粘合，拒水无纺布生产时热压无纺布再经历一次辊压粘合，采用这种工艺生产的拒水无纺布硬度较大，亲肤性比较差，当其应用在纸尿裤或卫生巾的护围时，影响产品的舒适度。
发明内容
本发明的目的是提供一种超柔疏水无纺布的生产系统及生产方法，至少能够解决上述问题之一。
为实现上述目的，根据本发明的一个方面，提供了一种超柔疏水无纺布的生产系统，包括第一纤维层产生系统、第二纤维层产生系统、熔喷装置和热扎机构，第一纤维层产生系统产生第一纤维层，第二纤维层产生系统产生第二纤维层，熔喷装置产生熔喷层，熔喷层位于第一纤维层和第二纤维层之间，第一纤维层、熔喷层和第二纤维层一并输入热扎机构进行热扎，熔喷装置包括相连接的挤出机和熔喷模头，熔喷模头位于第一纤维层和第二纤维层之间。由此，第一纤维层产生系统和第二纤维层产生系统产生或导出第一纤维层和第二纤维层，然后经过熔喷头和热扎机构，仅进行一次热压，使得拒水无纺布具有较好的柔软性。
在一些实施方式中，热扎机构包括光辊和花辊，花辊的表面设有多条交错均匀排列的长条形扎条。由此，花辊表面采用条形扎条，可增加扎点之间的距离，从而进一步提高热扎成品无纺布的蓬松度和柔软性。
在一些实施方式中，扎条的长度为3.5～4.5mm，优选长度为4.0mm。扎条的宽度为0.2～0.3mm，扎条成多排设置，每排扎条中的相邻两条扎条之间的间距为2.0～3.0mm。由此，适宜的扎条的长宽度及间距可确保无纺布各层具有很好的粘合度，又能保证无纺布的蓬松度和柔软性。
在一些实施方式中，扎条的一端为A端，扎条的另一端为B端，每排 扎条的A端在一条直线上，每排扎条的B端在一条直线上，相邻两排扎条呈交错设置，一排扎条的A端伸入到另一排扎条的B端之间，伸入的长度为0.5～1.5mm，优选伸入的长度为1mm。由此，交错设置可防止无纺布各层之间形成贯穿的通槽，确保无纺布各层之间的粘合度。
在一些实施方式中，第一纤维层产生系统包括第一开包机、第一开松机、第一梳理机和第一导向机构，纤维依次经过第一开包机、第一开松机、第一梳理机后和形成第一纤维层，再经第一导向机构被输送到热扎机构，第一纤维层为纤维网层。由此，第一纤维层产生系统可产生呈纤维网状的第一纤维层。
在一些实施方式中，第二纤维层产生系统包括第二开包机、第二开松机、第二梳理机和第二导向机构，纤维依次经过第二开包机、第二开松机、第二梳理机后形成第二纤维层，再经第二导向机构被输送到热扎机构，第二纤维层为纤维网层。由此，第二纤维层产生系统可产生呈纤维网状的第二纤维层。
在一些实施方式中，第一纤维层产生系统包括第一纤维层放卷机构和第一导向机构，第一纤维层放卷机构与第一导向机构位置相对应，第一纤维层为热风无纺布。
在一些实施方式中，第二纤维层产生系统包括第二纤维层放卷机构和第二导向机构，第二纤维层放卷机构与第二导向机构位置相对应，第二纤维层为热风无纺布。
熔喷模头的下方设有抽风装置，第一纤维层位于熔喷模头和抽风装置之间。由此，抽风装置可保证熔喷模头喷出的热熔材料更好的附着在纤维层上。
根据本发明的另一个方面，提供了一种超柔疏水无纺布的生产方法，包括以下步骤：
1)第一纤维层和第二纤维层分别由第一纤维层产生系统、第二纤维层产生系统产生或输出，熔喷装置将热熔材料喷于第二纤维层，形成熔喷层；
2)第一纤维层、第二纤维层和熔喷层经过热扎机构热扎，形成超柔软的超柔疏水无纺布；
3)超柔疏水无纺布冷却后收卷。
由此，上述生产方法步骤简单，纤维层单次热压保证了拒水无纺布有较好的柔软度。
本发明的有益效果为：超柔疏水无纺布的生产系统使得纤维层经一次热压制得疏水无纺布，使得疏水无纺布具有很好的柔软性，增强纸尿裤卫生巾等产品的舒适度，其生产系统结构简单、易于操作，其生产方法步骤 简单。
附图说明
图1为本发明实施例1的超柔疏水无纺布的生产系统的结构示意图；
图2为图1所示超柔疏水无纺布的生产系统的花辊的表面展开结构示意图；
图3为本发明实施例2的超柔疏水无纺布的生产系统的结构示意图。
具体实施方式
下面结合附图对本发明作进一步详细的说明。
实施例1
1和图2示意性地显示了本发明的一种实施方式方法的超柔疏水无纺布的生产系统。
如图1和图2所示，本实施例的超柔疏水无纺布的生产系统，包括第一纤维层产生系统1、第二纤维层产生系统2、熔喷装置3和热扎机构4，第一纤维层产生系统1产生第一纤维层5，第二纤维层产生系统2产生第二纤维层6，熔喷装置3产生熔喷层7，熔喷层7位于第一纤维层5和第二纤维层6之间，第一纤维层5、熔喷层7和第二纤维层6一并输入热扎机构4进行热扎。
第一纤维层产生系统1包括第一开包机11、第一开松机12、第一梳理机13和第一导向机构14，纤维依次经过第一开包机11、第一开松机12、第一梳理机13后形成第一纤维层5，再经第一导向机构14被输送到热扎机构4，本实施例的第一纤维层5为纤维网层。
第一开松机12包括粗开松机和精开松机。纤维依次经过粗开松机和精开松机，能够使纤维充分开松。第一开松机12和第一梳理机13之间依次设置有第一混合棉箱15和第一震动气压棉箱16，以使纤维充分松散。
第二纤维层产生系统2的结构与第一纤维层产生系统1的结构相同。第二纤维层产生系统2包括第二开包机21、第二开松机22、第二梳理机23、第二导向机构24、第二混合棉箱25和第二震动气压棉箱26。纤维依次经过第二开包机21、第二开松机22、第二混合棉箱25、第二震动气压棉箱26、第二梳理机23形成第二纤维层6，再经第二导向机构24被输送到热扎机构4，本实施例的第二纤维层6为纤维网层。
熔喷装置3包括相连接的挤出机31和熔喷模头32，熔喷模头32位于第一纤维层5和第二纤维层6之间。熔喷模头32的下方设有抽风装置33，第二纤维层6位于熔喷模头32和抽风装置33之间。抽风装置33内安装有 风机。抽风装置33可保证熔喷模头32喷出的热熔材料更好的附着在纤维层上，防止热熔材料飞散浪费。
挤出机31设有螺杆箱和驱动电机。将热熔材料加入螺杆箱内，螺杆箱的出料端与熔喷模头32连接。螺杆箱有加热机构，将热熔材料加热成为流体。驱动电机驱动螺杆，使热熔的材料自熔喷模头32喷出。
热扎机构4包括光辊41和花辊42，花辊42和光辊41均设有加热装置。加热装置为导热油加热方式，位于花辊42和光辊41的内部。光辊41和花辊42均为钢辊。第一纤维层5、第二纤维层6以及两者之间的熔喷层7经过花辊42和光辊41之间，进行单次热压，得到疏水无纺布。光辊41和花辊42花辊42的表面设有多条交错均匀排列的长条形扎条421。扎条421的长度为3.5～4.5mm，优选长度为4.0mm。扎条421的宽度为0.2～0.3mm，扎条421成多排设置，每排扎条421中的相邻两条扎条421之间的间距为2.0～3.0mm。
参照图2，扎条421的一端为A端4211，扎条421的另一端为B端4212，每排扎条421的A端4211在一条直线上，每排扎条421的B端4212在一条直线上。相邻两排扎条421呈交错设置，一排扎条421的A端4211伸入到另一排扎条421的B端4212之间的中间，伸入的长度为0.5～1.5mm，优选伸入的长度为1mm。
采用具有交错排列的形扎条421的花辊42与光辊41配合，可制作成具有条形压痕的疏水无纺布，在确保疏水无纺布各层之间紧密连接的同时，可使无纺布上的压点之间的距离比现有的拒水无纺布的压点之间的距离增大，可使熔喷层7两侧的第一纤维层5和第二纤维层6保持蓬松和柔软。
热扎机构4的输出端还设置有冷却装置8、收卷机9、分切机和包装机。图中未示出分切机和包装机。
本实施例的超柔疏水无纺布的生产方法，其特征在于，包括以下步骤：
1)采用PE/PP皮芯型复合纤维和/或PE/PET皮芯型复合纤维经纤维经过第一开包机11进行开包、经第一开松机12进行粗开和精开松、再经第一混合棉箱15和第一震动气压棉箱16和第一梳理机13后形成第一纤维层5；
采用PE/PP皮芯型复合纤维和/或PE/PET皮芯型复合纤维经纤维经过第二开包机21进行开包、经第二开松机22进行粗开和精开松、再经第二混合棉箱25和第二震动气压棉箱26和第二梳理机23后形成第二纤维层6；
采用熔喷纤维经挤出机31挤出并经熔喷模头32喷于第二纤维层6的上表面形成熔喷层7；通过抽风装置33抽吸使熔喷层7紧紧贴合于第二纤维层6的表面；
2)第一纤维层5、熔喷层7和第二纤维层6通过热扎机构4的光辊41和花辊42之间进行热扎，形成超柔软的超柔疏水无纺布。热扎机构4的花辊42加热温度为130～140℃，光辊的加热温度为125～128℃。
3)超柔疏水无纺布冷却后收卷。从热扎机构4输出的超柔疏水无纺布经冷却装置8冷却后再送入到收卷机9进行收卷。收卷后的无纺布卷在分切机上分切成一定宽度，然后在包装机上进行包装。
实施例2
图3示意性地显示了本发明的另一种实施方式的超柔疏水无纺布的生产系统。
参照图3，与实施例1不同的是，第一纤维层产生系统1包括第一纤维层放卷机构15和第一导向机构14，第一纤维层放卷机构15与第一导向机构14位置相对应，第一纤维层5为热风无纺布。
第二纤维层产生系统2包括第二纤维层放卷机构25和第二导向机构24，第二纤维层放卷机构25与第二导向机构24位置相对应，第二纤维层6为热风无纺布。
其余部份的结构与实施例1相同。
相应地，根据本实施例的超柔疏水无纺布的生产系统的生产方法，包括以下步骤：
1)第一纤维层放卷机构15上和第二纤维层放卷机构25上分别绕有热风无纺布，热风无纺布经第一纤维层放卷机构15和第一导向机构14输出为第一纤维层5；热风无纺布经第二纤维层放卷机构25和第二导向机构24输出为第二纤维层6；
采用熔喷纤维经挤出机31挤出并经熔喷模头32喷于第二纤维层6的上表面形成熔喷层7；通过抽风装置33抽吸使熔喷层7紧紧贴合于第二纤维层6的表面；
2)第一纤维层5、熔喷层7和第二纤维层6通过热扎机构4的光辊41和花辊42之间热扎，形成超柔软的超柔疏水无纺布。热扎机构4的花辊42加热温度为130～140℃，光辊的加热温度为125～128℃。
3)超柔疏水无纺布冷却后收卷。从热扎机构4输出的超柔疏水无纺布经冷却装置8冷却后再送入到收卷机9进行收卷。收卷后的无纺布卷在分切机上分切成一定宽度，然后在包装机上进行包装。
采用本发明的系统和方法所生产的超柔疏水无纺布的第一纤维层5及第二纤维层6的克重为6～8克/m2，熔喷层7的克重为为3～4克/m2；总厚度0.5～0.8mm；抗渗水的水压高度为150mm～200mm。是一种轻质、超柔软的疏水无纺布。对人体皮肤无刺激，透气性好，防渗水性能好，尤其适合 用于与人体皮肤接触的防渗材料，如纸尿片、卫生巾等的防侧漏材料，还可用于手术衣、防护服、口罩等卫生用品的原材料。
以上所述的仅是本发明的一些实施方式。对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。

Claims (10)

  1. 超柔疏水无纺布的生产系统，其特征在于，包括第一纤维层产生系统(1)、第二纤维层产生系统(2)、熔喷装置(3)和热扎机构(4)，所述第一纤维层产生系统(1)产生第一纤维层(5)，所述第二纤维层产生系统(2)产生第二纤维层(6)，所述熔喷装置(3)产生熔喷层(7)，所述熔喷层(7)位于第一纤维层(5)和第二纤维层(6)之间，所述第一纤维层(5)、熔喷层(7)和第二纤维层(6)一并输入热扎机构(4)进行热扎，所述熔喷装置(3)包括相连接的挤出机(31)和熔喷模头(32)，所述熔喷模头(32)位于第一纤维层(5)和第二纤维层(6)之间。
  2. 根据权利要求1所述的超柔疏水无纺布的生产系统，其特征在于，所述热扎机构(4)包括光辊(41)和花辊(42)，所述花辊(42)的表面设有多条交错均匀排列的长条形扎条(421)。
  3. 根据权利要求2所述的超柔疏水无纺布的生产系统，其特征在于，所述扎条(421)的长度为3.5～4.5mm，所述扎条(421)的宽度为0.2～0.3mm，所述扎条(421)成多排设置，每排所述扎条(421)中的相邻两条扎条(421)之间的间距为2.0～3.0mm。
  4. 根据权利要求3所述的超柔疏水无纺布的生产系统，其特征在于，所述扎条(421)的一端为A端(4211)，所述扎条(421)的另一端为B端(4212)，每排所述扎条(421)的A端(4211)在一条直线上，每排扎条(421)的B端(4212)在一条直线上，相邻两排所述扎条(421)呈交错设置，一排扎条(421)的A端(4211)伸入到另一排扎条(421)的B端(4212)之间，伸入的长度为0.5～1.5mm。
  5. 根据权利要求1所述的超柔疏水无纺布的生产系统，其特征在于，所述第一纤维层产生系统(1)包括第一开包机(11)、第一开松机(12)、第一梳理机(13)和第一导向机构(14)，纤维依次经过第一开包机(11)、第一开松机(12)、第一梳理机(13)后和形成第一纤维层(5)，再经第一导向机构(14)被输送到热扎机构(4)，所述第一纤维层(5)为纤维网层。
  6. 根据权利要求1所述的超柔疏水无纺布的生产系统，其特征在于，所述第二纤维层产生系统(2)包括第二开包机(21)、第二开松机(22)、 第二梳理机(23)和第二导向机构(24)，纤维依次经过第二开包机(21)、第二开松机(22)、第二梳理机(23)后形成第二纤维层(6)，再经第二导向机构(24)被输送到热扎机构(4)，所述第二纤维层(6)为纤维网层。
  7. 根据权利要求1所述的超柔疏水无纺布的生产系统，其特征在于，所述第一纤维层产生系统(1)包括第一纤维层放卷机构(15)和第一导向机构(14)，所述第一纤维层放卷机构(15)与第一导向机构(14)位置相对应，所述第一纤维层(5)为热风无纺布。
  8. 根据权利要求1所述的超柔疏水无纺布的生产系统，其特征在于，所述第二纤维层产生系统(2)包括第二纤维层放卷机构(25)和第二导向机构(24)，所述第二纤维层放卷机构(25)与第二导向机构(24)位置相对应，所述第二纤维层(6)为热风无纺布。
  9. 根据权利要求1～8任一项所述的超柔疏水无纺布的生产系统，其特征在于，所述熔喷模头(32)的下方设有抽风装置(33)，所述第一纤维层(5)位于熔喷模头(32)和抽风装置(33)之间。
  10. 超柔疏水无纺布的生产方法，其特征在于，包括以下步骤：
    1)第一纤维层(5)和第二纤维层(6)分别由第一纤维层产生系统(1)、第二纤维层产生系统(2)产生或输出，熔喷装置(3)将热熔材料喷于第二纤维层(6)，形成熔喷层(7)；
    2)第一纤维层(5)、第二纤维层(6)和熔喷层(7)经过热扎机构(4)热扎，形成超柔软的超疏无纺布；
    3)超疏无纺布冷却后收卷。
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CN111809312A (zh) * 2020-08-06 2020-10-23 江苏坤泰机械有限公司 熔喷布水刺生产线
CN111838852A (zh) * 2020-08-22 2020-10-30 浙江浩阳卫生用品有限公司 一种弹性耳带平面口罩全伺服高速生产线
CN113584714A (zh) * 2021-06-22 2021-11-02 南通通州江华纺织有限公司 一种木浆复合无纺布、生产工艺及其生产流水线

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