JPS6189363A - Method and apparatus for producing nonwoven fabric - Google Patents
Method and apparatus for producing nonwoven fabricInfo
- Publication number
- JPS6189363A JPS6189363A JP59210021A JP21002184A JPS6189363A JP S6189363 A JPS6189363 A JP S6189363A JP 59210021 A JP59210021 A JP 59210021A JP 21002184 A JP21002184 A JP 21002184A JP S6189363 A JPS6189363 A JP S6189363A
- Authority
- JP
- Japan
- Prior art keywords
- conveyor
- temperature
- nonwoven fabric
- suction
- fiber aggregate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004745 nonwoven fabric Substances 0.000 title claims description 44
- 238000000034 method Methods 0.000 title claims description 6
- 239000000835 fiber Substances 0.000 claims description 51
- 238000004519 manufacturing process Methods 0.000 claims description 26
- 230000004927 fusion Effects 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000002844 melting Methods 0.000 claims description 13
- 230000008018 melting Effects 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 5
- 206010040844 Skin exfoliation Diseases 0.000 description 9
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000037303 wrinkles Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000004049 embossing Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Nonwoven Fabrics (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［産業上の利用分野］ ゛
本発明は、熱＠着ｍ維を混綿した繊維集合体を加熱して
不織布となす不織布製造方法及び不織布製造装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a nonwoven fabric manufacturing method and a nonwoven fabric manufacturing apparatus for heating a fiber aggregate mixed with thermally attached m-fibers to form a nonwoven fabric.
［従来の技術とその問題点］
従来、この不織布製造方法は、第３図に示す如く、熱融
着繊維を混綿したｍ紐束合体Ａを搬入コンベア１から外
周面を金網で被覆しＬ吸引ドラム２へ移送し、ｍ紐束合
体Δが吸引ドラム２の吸引領域を通過する間に！ｌ維紐
束体Ａの非搬送面側から吸引ドラム２へ前記ｍ着ｍ維の
融着温度Ｔｍ（例えば、１１０〜１４０℃）以上の熱風
を通過させて繊維集合体Ａを加熱し、繊維同士を熱融着
したものを冷却ドラム３で冷却して不織布Ｂを得ていた
。[Prior art and its problems] Conventionally, as shown in Fig. 3, this nonwoven fabric manufacturing method involves transporting m string bundles A mixed with heat-sealable fibers from conveyor 1, covering the outer peripheral surface with a wire mesh, and sucking L Transferred to the drum 2, while the m string bundle Δ passes through the suction area of the suction drum 2! The fiber assembly A is heated by passing hot air having a melting temperature Tm (for example, 110 to 140° C.) of the m-bound m fibers from the non-conveying surface side of the fiber cord bundle A to the suction drum 2, and the fiber assembly A is heated. The nonwoven fabric B was obtained by cooling the nonwoven fabric B by heat-sealing them together using a cooling drum 3.
しかし、上記従来の不織布製造方法には、次の様な欠点
があった。However, the conventional nonwoven fabric manufacturing method described above has the following drawbacks.
■ 吸引ドラム２の搬送面温度は、融着温度７１以上で
ある熱風温度近くまで昇温しでいる。そのため、繊維集
合体Ａは吸引ドラム２の搬送面と直接接触する搬送面側
の加熱のみが急速に進行し、冑られた不織布Ｂの表裏面
の風合が著しく異なる。(2) The temperature of the conveying surface of the suction drum 2 has risen to near the hot air temperature, which is the fusion temperature 71 or higher. Therefore, heating of the fiber aggregate A rapidly progresses only on the conveying surface side that is in direct contact with the conveying surface of the suction drum 2, and the textures of the front and back surfaces of the removed nonwoven fabric B are significantly different.
◎ 吸引ドラム２の外周を？ｅｉ覆する金網は、熱融着
した！！雑の剥離性を向上させるために、高価なテフロ
ンコーティング等の剥離処理を施す必要がある。ところ
が、如何に剥離処理を施しても、金網に絡み付くように
熱融着した融着ｍ維を剥離する際に生じる剥離抵抗によ
り、該ｔｉＨｆｆ繊維が繊維集合体Ａから若干引抜かれ
た状態となるため不織布Ｂに片面剥離、しわ等が発生し
ていた。◎ The outer circumference of suction drum 2? The wire mesh that overturns ei is heat-fused! ! In order to improve the removability of the material, it is necessary to apply a peeling treatment such as an expensive Teflon coating. However, no matter how the peeling treatment is carried out, the tiHff fibers will be slightly pulled out from the fiber aggregate A due to the peeling resistance that occurs when peeling off the fused m fibers that are heat-sealed so as to entangle with the wire mesh. Therefore, nonwoven fabric B had peeling on one side, wrinkles, etc.
■ 前記不織布の表裏面の風合の差異、片面剥離及びし
わ等の発生を最少限にするために、熱風温度と融＠温度
Ｔｍの温度差を小さくする必要がある。そのため、ｍ紐
束合体への長時間加熱が必要となり処理能力が非常に低
かった。(2) In order to minimize the difference in texture between the front and back surfaces of the nonwoven fabric, one-sided peeling, wrinkles, etc., it is necessary to reduce the temperature difference between the hot air temperature and the melting temperature Tm. Therefore, it was necessary to heat the m string bundle for a long time, and the processing capacity was extremely low.
［問題を解決するための手段］
そこで、本発明者は、上記欠点を解決するために幾多の
実験を繰返した結果、第２図に示す如く、外径が０．４
ｍｉφのワイヤー４８からなる冷却されたネット４上に
２デニール（外径が約０．０２４ｍｍφ）の繊１１１ａ
からなる繊維集合体Ａを載置して＃ｊ維紐束体Ａ及びネ
ット４へ熱風を通気させた場合、単 １位体積当り
の熱容量（比熱に比重を乗した値）に関しては繊維ａが
ワイヤー４８の約３／７であること並びに単位体積当り
の伝熱面積（表面積を体積で除した値）に関し・ではワ
イヤー４ａＩｆｉ４１１４ ａの約６／ １００である
ことから、昇温速度に関しては繊維ａのほうがワイヤー
４ａより非常に速いため、繊Ｎａが融着温度Ｔｍに達し
た時点でもワイヤー４８を融１２１度Ｔｍ未満とするこ
とが出来ることを発見し、かかる知見に基づいて本発明
を完成した。[Means for Solving the Problem] Therefore, the inventor of the present invention repeated many experiments in order to solve the above-mentioned drawbacks, and as a result, as shown in Fig. 2, the outer diameter was 0.4.
A fiber 111a of 2 denier (outer diameter of about 0.024 mmφ) is placed on a cooled net 4 made of a wire 48 of miφ.
When the fiber aggregate A consisting of #j is placed and hot air is vented to the #j fiber bundle A and the net 4, the heat capacity per unit volume (the value obtained by multiplying the specific heat by the specific gravity) is Since it is about 3/7 of wire 48 and the heat transfer area per unit volume (value obtained by dividing the surface area by volume) is about 6/100 of wire 4aIfi4114a, the heating rate of fiber a The inventors discovered that since the wire 4a is much faster than the wire 4a, the wire 48 can be melted at less than 121 degrees Tm even when the fiber Na reaches the fusion temperature Tm, and based on this knowledge, the present invention was completed. .
本第１発明の不織布製造方法は、熱融着ＩＩを混綿した
繊維集合体を加熱して不織布となす不織布製造方法にお
いて、表面開口率が７０％以上の吸引ドラムと反転ロー
ルとの間に巻架されたワイヤーネットからなり且つ該吸
引ドラムへ接触開始するまでに強制冷却された搬送コン
ベアに前記ｉ＊ｍ集合体を移載し、搬送コンベアで搬送
される繊維集合体が前記吸引ドラムの吸引領域を通過す
る間にｍ紐束合体の非搬送面側から吸引ドラムへ前記熱
融着Ｉｌｌの融着温度以上の熱風を通過させて繊維集合
体を加熱し、加熱領域出口におけるＩＩＮ集合体の温度
が前記融着温度以上で且つ前記搬送コンベアの搬送面温
度が前記融着温度未満となる運転速度で前記搬送コンベ
アを駆動することから構成されている。The method for manufacturing a nonwoven fabric of the first invention is a method for manufacturing a nonwoven fabric in which a fiber aggregate mixed with heat-sealable II is heated to form a nonwoven fabric, and the method is wound between a suction drum having a surface aperture ratio of 70% or more and a reversing roll. The i*m aggregate is transferred to a conveyor that is made of a suspended wire net and is forcibly cooled before it starts contacting the suction drum, and the fiber aggregate conveyed by the conveyor is sucked by the suction drum. While passing through the area, hot air having a temperature higher than the fusion temperature of the thermally fused Ill is passed through the suction drum from the non-conveying side of the m string bundle combination to heat the fiber aggregate, and the IIN aggregate at the exit of the heating area is heated. The conveyor is driven at an operating speed such that the temperature is higher than the fusion temperature and the temperature of the conveying surface of the conveyor is lower than the fusion temperature.
この構成によって加熱領域を通過する搬送コンベアの搬
送面温度は融着温度以上とならず、繊維集合体は搬送コ
ンベアからの加熱を受けることなく通気熱風のみで加熱
融着されるので、表面剥離及びしわ等のない不織布とな
る。With this configuration, the temperature of the conveying surface of the conveyor passing through the heating area does not exceed the fusion temperature, and the fiber aggregate is heat-fused only by ventilation hot air without being heated by the conveyor, so surface peeling and The result is a nonwoven fabric with no wrinkles.
本第２発明の不織布製造装置の構成は、熱ａ着ｍｗｕを
混綿した！紐束合体を加熱して不織布となす不織布製造
装置において、表面開口率が７０％以上の吸引ドラムと
、該吸引ドラムと反転ロールとの間に巻架されて所望運
転速度で駆動される無端状のワイヤーネットからなる搬
送コンベアと、該ｎ送コンベアのドラム巻回領域の外周
側に配され、搬送コンベアの搬送面へ向って熱風を供給
する熱風供給室と、前記搬送コンベアのドラム巻回領域
を除く適所に配され、前記吸引ドラムの吸引領域の出口
における搬送コンベアの搬送面温度を前記熱融着繊維の
融着温度未満とする冷気Ｉ！１市を搬送コンベアを介し
て吸引する吸引至とを備えたことである。The structure of the nonwoven fabric manufacturing apparatus of the second invention is that the thermal a-adhesive mwu is mixed! In a nonwoven fabric manufacturing apparatus that heats a bundle of strings to form a nonwoven fabric, a suction drum having a surface aperture ratio of 70% or more, and an endless type that is wound between the suction drum and a reversing roll and driven at a desired operating speed. a conveyor consisting of a wire net; a hot air supply chamber disposed on the outer circumferential side of the drum winding area of the conveyor and supplying hot air toward the conveyance surface of the conveyor; and a drum winding area of the conveyor. The cold air I! is placed at a suitable location except for the suction area of the suction drum, and makes the temperature of the conveying surface of the conveyor at the exit of the suction area of the suction drum less than the fusing temperature of the heat-fusible fibers! It is equipped with a suction station that sucks up one piece of paper via a conveyor.
この構成によって加熱領域の出口における搬送コンベア
の搬送面温度は融着温度未満となり、繊維集合体を搬送
コンベアで加熱することなく通気熱風のみで加熱して表
面剥離及びしわ等のない不織布を製造することが出来る
。With this configuration, the temperature of the conveying surface of the conveyor at the exit of the heating area is lower than the fusion temperature, and the fiber aggregate is heated only with ventilation hot air without being heated by the conveyor, producing a nonwoven fabric with no surface peeling or wrinkles. I can do it.
［第２発明の実施例ｊ
本第２発明に係る不織布製造装置を第１図に示す実施例
に基づいて説明する。本体フレーム５に回転自在に枢支
された強制駆動の吸引ドラム６と自由回転の反転ロール
７．７・・・には、無端状のワイヤーネットからなる搬
送コンベア８が巻架されている。更に、吸引ドラム６と
反転ロール９．９・・・と張力調節装置１４には、搬送
コンベア８の吸引ドラム６への浮回領域を覆うようにし
て、無端状のワイヤーネットからなる抑圧コンベア１０
が必要に応じて巻架されており、前記搬送コンベア８と
該押圧コンベア１０でｍ紐束合体Ａを挾持搬送するよう
に構成されている。搬送コンベア８及び押圧コンベア１
０は、吸引ドラム６の強制駆動に伴ない所望運転速度Ｖ
で駆動される。前記吸引ドラム６は、その外周面６ａが
ステンレススチール等からなるハニカム状の多孔弯曲体
等から形成され、表面開口率を１０％以上で且つ外径を
５００〜１５００ｍｍφ程麿としである。吸引ドラム６
の表面開口率を７０％以上とするのは、外周面６ａと搬
送コンベア８との接触面積を小さくし、後述する熱用温
度Ｔａ近くに遼した外周面６ａから強制冷却された低温
度の搬送コンベア８へ接触伝熱する熱量を小さくして搬
送コンベア８の昇温を防止するためである。吸引ドラム
６の内部は、多孔の弯曲整流板１１ａ及びシール板１１
ｂを備えた固定ドラム１１が固定軸１２に取付けられて
おり、吸引ドラム６の外周壁と固定ドラム１１の間を吸
引領域りとシール領域Ｅに分割しである。吸引ドラム６
及び固定ドラム１１は、夫々の側板６Ｃ，１１ｃに通気
孔６ｃ’ 、 Ｉｌｃ ’が開口されていると共に、吸
引ドラム６の通気孔６ｃ’を熱風循環装置（図示省略）
の吸引口に接続して、固定ドラム１１内が所定の負圧状
態（例えば、−３０〜−１００１１１１１ＡＱ）となる
ように構成されている。前記搬送コンベア８及び押圧コ
ンベア１０は、ステンレススチール３からなる線径が０
，３〜０．６ｍｍφ程度の単線又は撚線を平織又はスパ
イラル等したワイヤーネットが用いられる。前記吸引ド
ラム６の吸引領域りの外周側には、熱風供給室１３が設
けられている。熱風供給室１３は、丸孔又はスリット孔
等を形成したノズル板１３ａが吸引ドラム６との間に整
流空間Ｆを置いて設けられており、室外の熱風発生装置
（図示省略）から熱風供給口１３ｂへ供給された融着温
度Ｔｌｌ （例えば、１１０〜１４０℃）以上の温度
７ａの熱風を抑圧コンベア１０の裏面（又は押圧コンベ
ア１０を設けていなときは搬送コンベア８の搬送面）へ
向って供給するように構成されている。熱風の速度は、
供給熱風量を吸引ドラム６の吸引領ｖＪ、Ｄの有効平面
積で除して得た所謂前面風速値が０．５〜５．０ｍ ／
ｓｅａ程度となるよう設定される。前記吸引ドラム６の
入口外側には、搬送コンベア８を冷却するための吸引室
１５が配設されている。吸引室１５は、搬送コンベア８
の裏面と対向する多孔状の吸気板？５ａを備え、−１搬
送コンベア８の搬送面側にある雰囲気空気を搬送コンベ
ア８を介して室内１５ｂへ吸引した後、排出口１５ｃか
ら室外へ排出し、吸引ドラム６の吸引領域りの出口（即
ち、前記熱風による加熱領域の出口）を通過する搬送コ
ンベア８の搬送面温度Ｔｃが融＠温度Ｔ■未満となるよ
うに構成されている。なお、搬送コンベ゛ア８の搬送面
側の雰囲気温度が高い場合には、図示省略したが、搬送
コンベア８の搬送面側へ冷気を供給することも勿論可能
である。なお、前記押圧コンベア１０の強制冷却は、図
示実施例の如く、外気と接するコンベア長さが長い場合
には特に必要でない。前記熱風供給室１３の下方に設け
た搬出コンベアー１６は、無端状のワイヤーネット笠か
らなり、裏面側に冷気吸引式の冷却手段１７が設けられ
ている。該搬出コンベア１６の入口上方には、エンボス
ロール装置１８が必要に応じて設けられる。[Embodiment j of the second invention A nonwoven fabric manufacturing apparatus according to the second invention will be described based on an embodiment shown in FIG. A transport conveyor 8 made of an endless wire net is wound around a forcedly driven suction drum 6 and freely rotating reversing rolls 7, 7, . . . which are rotatably supported on the main body frame 5. Further, the suction drum 6, the reversing rolls 9, 9, and the tension adjustment device 14 are provided with a suppression conveyor 10 made of an endless wire net so as to cover the floating area of the conveyor 8 to the suction drum 6.
are rolled up as required, and the conveyor 8 and the press conveyor 10 are configured to sandwich and convey the m string bundle A. Conveyor 8 and press conveyor 1
0 is the desired operating speed V due to forced drive of the suction drum 6
is driven by. The outer peripheral surface 6a of the suction drum 6 is formed of a honeycomb-like porous curved body made of stainless steel or the like, and has a surface aperture ratio of 10% or more and an outer diameter of about 500 to 1500 mmφ. Suction drum 6
The purpose of setting the surface aperture ratio to 70% or more is to reduce the contact area between the outer circumferential surface 6a and the conveyor 8, and to provide a low-temperature conveyance that is forcibly cooled from the outer circumferential surface 6a, which is close to the heating temperature Ta, which will be described later. This is to prevent the temperature of the conveyor 8 from rising by reducing the amount of heat transferred to the conveyor 8 by contact. The inside of the suction drum 6 includes a porous curved rectifier plate 11a and a seal plate 11.
A fixed drum 11 with a diameter of 1.b is attached to a fixed shaft 12, and the space between the outer circumferential wall of the suction drum 6 and the fixed drum 11 is divided into a suction area and a seal area E. Suction drum 6
The fixed drum 11 has ventilation holes 6c' and Ilc' opened in the side plates 6C and 11c, respectively, and the ventilation hole 6c' of the suction drum 6 is connected to a hot air circulation device (not shown).
The fixed drum 11 is connected to a suction port so that the inside of the fixed drum 11 is in a predetermined negative pressure state (for example, -30 to -10011111AQ). The conveyor 8 and the press conveyor 10 are made of stainless steel 3 and have a wire diameter of 0.
, 3 to 0.6 mmφ, a plain weave or spiral wire net made of solid or twisted wires is used. A hot air supply chamber 13 is provided on the outer peripheral side of the suction area of the suction drum 6. The hot air supply chamber 13 is provided with a nozzle plate 13a having round holes or slit holes, etc., with a rectification space F placed between it and the suction drum 6, and a hot air supply port from an outdoor hot air generator (not shown). The hot air at a temperature 7a higher than the fusion temperature Tll (for example, 110 to 140°C) supplied to the 13b is directed toward the back surface of the suppression conveyor 10 (or the conveyance surface of the conveyor 8 when the pressure conveyor 10 is not provided). configured to supply. The speed of hot air is
The so-called front wind speed value obtained by dividing the supplied hot air volume by the effective flat area of the suction area vJ, D of the suction drum 6 is 0.5 to 5.0 m/
It is set to be about sea. A suction chamber 15 for cooling the conveyor 8 is provided outside the entrance of the suction drum 6 . The suction chamber 15 is connected to the conveyor 8
A porous intake plate facing the back side of the ? 5a, the atmospheric air on the conveying surface side of the -1 conveyor 8 is sucked into the room 15b via the conveyor 8, and then discharged to the outside from the discharge port 15c, and the air is discharged from the suction area of the suction drum 6 ( In other words, the conveyor surface temperature Tc of the conveyor 8 passing through the outlet of the heating area by the hot air is configured to be less than the melting temperature T■. Note that, if the ambient temperature on the conveyance surface side of the conveyor 8 is high, it is of course possible to supply cold air to the conveyance surface side of the conveyor 8, although not shown. Note that forced cooling of the pressing conveyor 10 is not particularly necessary when the length of the conveyor in contact with the outside air is long as in the illustrated embodiment. The carry-out conveyor 16 provided below the hot air supply chamber 13 is made of an endless wire net shade, and a cold air suction type cooling means 17 is provided on the back side. An embossing roll device 18 is provided above the entrance of the discharge conveyor 16 as required.
以上の如く構成された不織布製造装置について、以下そ
の動作を説明する。不織布製造装置は、所望運転速度Ｖ
の搬送コンベア８に搬送されて吸引ドラム６の吸引領域
りを通過する繊維集合体Ａへ、熱風供給室１３のノズル
板１３ａから融着温度Ｔｌ１以上の温度Ｔａで吹き出し
た熱風を通過させて、吸引領域りの出口に達したｍ帷集
合体へを融着温度Ｔ１１以上に加熱する。ところで、所
望運転速度■の搬送コンベア８は、吸引ドラム６へ接触
開始するまでに所定温度以下に冷却されていると共に、
熱Ｊ！Ｉｍ度Ｔａまで昇温した吸引ドラム６の外周面６
ａとの接触伝熱面積が非常に小さいことから、前記吸引
領域りの出口における搬送面８ａの温度が前記融着温度
Ｔｍ未満の温度状態に維持される。その結果、融着温度
１１以上に加熱された繊維集合体Ａは、搬送コンベア８
の搬送面８ａで若干冷却される状態となるため、搬送面
８ａに融着することがなくスムーズに搬送面８ａから離
れる。The operation of the nonwoven fabric manufacturing apparatus configured as described above will be described below. The nonwoven fabric manufacturing device has a desired operating speed V
The hot air blown out from the nozzle plate 13a of the hot air supply chamber 13 at a temperature Ta higher than the fusion temperature Tl1 is passed through the fiber aggregate A that is conveyed to the conveyor 8 and passes through the suction area of the suction drum 6. The m-thread assembly that has reached the exit of the suction area is heated to a melting temperature T11 or higher. By the way, the conveyor 8 at the desired operating speed ■ has been cooled down to a predetermined temperature or lower before it starts contacting the suction drum 6, and
Heat J! The outer peripheral surface 6 of the suction drum 6 whose temperature has been raised to Im degrees Ta
Since the contact heat transfer area with a is very small, the temperature of the conveyance surface 8a at the exit of the suction area is maintained at a temperature lower than the fusion temperature Tm. As a result, the fiber aggregate A heated to a fusion temperature of 11 or higher is transferred to the conveyor 8.
Since it is slightly cooled on the conveyance surface 8a, it smoothly leaves the conveyance surface 8a without being fused to the conveyance surface 8a.
［第１発明の実施例］
次に、前記不織布製造装置を用いた本第１発明に係る不
織布製造方法を説明すると以下のとおりである。適宜量
の熱融着ｓｉｎを混綿後、カード成形等の適宜手段（図
示省略）でウェッブ成形した繊維集合体Ａは、入口コン
ベア１９に案内されて搬送コンベア８へ移載された後、
搬送コンベア８と押圧コンベア１０で挟持搬送されて吸
引ドラム６へ移動する。そして、搬送コンベア８は、吸
引苗１５へ吸引される冷気の冷却作用により、吸引ドラ
ム６へ接触開始するまでに強制冷却される。搬送コンベ
ア８で搬送される繊維集合体Ａは、吸引ドラム６の吸引
領域りを通過する間に、熱風供給室１３のノズル板１２
ａから前記熱融着繊維の融着温度１１以上の温度Ｔａで
吹き出した熱風を、抑圧コンベア１０を介して繊維集合
体Ａの非搬送面側から吸引ドラム６へ通過させることに
より加熱される。[Embodiments of the First Invention] Next, a nonwoven fabric manufacturing method according to the first invention using the nonwoven fabric manufacturing apparatus will be described as follows. After blending an appropriate amount of heat-fused sin, the fiber aggregate A is formed into a web by an appropriate means such as card forming (not shown), and is guided to the entrance conveyor 19 and transferred to the conveyor 8, and then
The paper is sandwiched and transported by the transport conveyor 8 and the press conveyor 10 and moved to the suction drum 6. The conveyor 8 is forcibly cooled by the cooling effect of the cold air sucked into the suction seedlings 15 before it starts contacting the suction drum 6. The fiber aggregate A conveyed by the conveyor 8 passes through the suction area of the suction drum 6, while the fiber aggregate A passes through the nozzle plate 12 of the hot air supply chamber 13.
The fiber assembly A is heated by passing hot air blown from a at a temperature Ta higher than the fusing temperature 11 of the heat-fusible fibers from the non-conveyance side of the fiber aggregate A to the suction drum 6 via the suppression conveyor 10.
繊維集合体Ａは、吸引ドラム６の吸引領ｊｉｌＤの出口
に達すると、搬送コンベア８の運転速度Ｖが俊述する所
望速度であるため、融着温度Ｔｍ以上となる。搬送コン
ベア８の運転速度Ｖは、吸引ドラム６の吸引領域りの出
口における繊維集合体Ａの温度が前記融着温度Ｔ１１以
上で且つ前記搬送コンベア８の搬送面温度が前記融着温
度Ｔｍ未満となるように所望運転速度に決定される。融
着温度Ｔｍ以上となり、ＩＩＮ同士が熱融着した繊維集
合体Ａ’は、繊維集合体Ａ／、と接触する面の温度が融
着温度７ｍ未満の搬送コンベア６及び押圧コンベア１０
からスムーズに離れた後、必要に応じてエンボスロール
装置１８でエンボス加工されて、搬出コンベア１６へ導
かれる。続けて、Ｉｌ帷集合体Ａ’は、搬出コンベア１
６上で冷却手段１７により強制冷却されて不織布Ｃとな
る。When the fiber aggregate A reaches the exit of the suction area jilD of the suction drum 6, the temperature reaches the fusion temperature Tm or higher because the operating speed V of the conveyor 8 is the desired speed. The operating speed V of the conveyor 8 is such that the temperature of the fiber aggregate A at the exit of the suction area of the suction drum 6 is equal to or higher than the fusion temperature T11, and the temperature of the conveying surface of the conveyor 8 is less than the fusion temperature Tm. The desired operating speed is determined so that the The fiber aggregate A', in which the IINs are thermally fused to each other at a temperature equal to or higher than the fusion temperature Tm, is transported to a conveyor 6 and a press conveyor 10 whose surfaces in contact with the fiber aggregate A/ have a temperature lower than the fusion temperature 7 m.
After being smoothly separated from the paper, the paper is embossed by an embossing roll device 18 as required, and then guided to the delivery conveyor 16. Subsequently, the Il sheet assembly A' is transferred to the unloading conveyor 1.
6, the nonwoven fabric C is forcibly cooled by the cooling means 17.
［試験例］
本発明者は、熱風の温度Ｔａ及び搬送コンベアの運転速
度Ｖがｍ紐束合体Ａの加熱等にどの様な影響を及ぼすか
を下記の条件で調査し、表に記載する結果を得た。[Test Example] The present inventor investigated how the temperature Ta of the hot air and the operating speed V of the conveyor affect the heating etc. of the m string bundle combination A under the following conditions, and the results are listed in the table. I got it.
（条 件）
（１） 繊維集合体の条件
■ 高融点ＩＩＮ
ポリエステルｍｕからなる２デニールで長さ５１ｍｍ
■ 低融点繊維
ポリエチレンで被覆されたポリプロピレンａｍからなる
２デニールで長さ５１ｍｍ■ 混綿比率
高融点ＩＩＩ：低融点＠１ｆｌ＝６０：４０■ 目付・
・・２０１１１／ｍ”
（２）搬送コンベア及び押圧コンベアの条件■ 材質・
・・５ＵＳ３０４
■ 線径
縦・・・０．１７ｍｍφを７本撚った撚線横・・・０．
４２１φからなる単線
■ Ｒ構造
縦が２５本／ １ｎｃｈで横が１８本／１ｎｃｈの平織
構造
（３）加熱条件
■ 熱風の前記前面凪速値
２、Ｏｍ ／ｓｅａ
■ 吸引ドラム
材質・・・５ＵＳ３０４
外径−１０００ｍｍφ
吸引領域の有効Ｑさ・・・２．２０Ｏｎ＋ｍ外周面の開
口率・・・８５％
（注） 搬送コンベアの搬送面温度中、イは吸引ドラム
へ接触する直前の非搬送面の温度
口は吸引領域出口の搬送面の温度
［本発明の効果〕
本第１発明に係る不織布製造方法は、次の如き優れた効
果を有する。(Conditions) (1) Conditions of the fiber aggregate ■ High melting point IIN 2 denier made of polyester mu, length 51 mm ■ 2 denier made of polypropylene am coated with low melting point fiber polyethylene, length 51 mm ■ Cotton blend ratio high melting point III: Low melting point @ 1 fl = 60:40■
・・20111/m” (2) Conditions of conveyor and press conveyor ■ Material・
...5US304 ■ Wire diameter vertically...0.17mmφ 7 twisted wires horizontally...0.
Single wire consisting of 421φ ■ R structure Plain weave structure with 25 wires/1 nch vertically and 18 wires/1 nch horizontally (3) Heating conditions ■ Front calm speed value of hot air 2, Om/sea ■ Suction drum material...5US304 Outside Diameter - 1000mmφ Effective Q of suction area...2.20On+m Opening ratio of outer peripheral surface...85% (Note) Among the temperatures of the conveyor surface of the conveyor, A is the temperature of the non-conveyance surface immediately before contacting the suction drum The opening is the temperature of the conveyance surface at the exit of the suction area [Effects of the present invention] The nonwoven fabric manufacturing method according to the first invention has the following excellent effects.
■ ｌＩＮ集合体の加熱は、搬送コンベアの搬送面温度
が融＠温度Ｔ＋＋＋未満であるため、繊維集合体を通過
する熱風のみで行なわれる。その結果、得られた不織布
Ｂは、表裏面の風合が略々等しいものとなる。(2) The lIN aggregate is heated only by hot air passing through the fiber aggregate because the temperature of the conveying surface of the conveyor is lower than the melting temperature T+++. As a result, the obtained nonwoven fabric B has substantially the same texture on the front and back surfaces.
■ 繊維集合体は、搬送コンベアの搬送面温度が融＠温
度ＴＩ未満であるため、搬送面と低融点ＩＮとの融着現
象を生じることなく、搬送コンベアの搬送面から何らの
剥離抵抗なくスムーズに離れる。その結果、得られた不
織布は、片面剥離、しわ等のない平滑な不織布である。■ Since the temperature of the conveying surface of the conveyor is lower than the melting temperature TI, the fiber aggregate does not cause any fusion phenomenon between the conveying surface and the low melting point IN, and can be smoothly peeled off from the conveying surface of the conveyor without any resistance. to leave. As a result, the obtained nonwoven fabric is a smooth nonwoven fabric with no peeling on one side, no wrinkles, etc.
■ 前記■及び■の相乗効果により、従来得られなかっ
た両面風合の略々等しく且つ平滑な不織布を製造するこ
とが出来る。(2) Due to the synergistic effect of (1) and (2), it is possible to produce a nonwoven fabric with substantially equal and smooth texture on both sides, which has not been previously possible.
■ 熱風温度とＲ着温度の温度差を大きくすることが可
能となるため、繊維集合体を短時間で加熱することが出
来る。その結果、加熱領域の単位長さ当りの不織布の製
造能力は従来の３〜６倍と向上し、コンパクトな製造装
置で製造することが可能となり作業能率の向上が図れる
。(2) Since it is possible to increase the temperature difference between the hot air temperature and the R-wearing temperature, the fiber aggregate can be heated in a short time. As a result, the production capacity of nonwoven fabric per unit length of the heating area is improved to 3 to 6 times that of the conventional method, and it is possible to produce the nonwoven fabric with a compact production apparatus, thereby improving work efficiency.
更に、本第２発明に係る不織布製造装置は、次の如き優
れた効果を有する。Furthermore, the nonwoven fabric manufacturing apparatus according to the second invention has the following excellent effects.
■ 従来得られなかった表裏面風合の略々等しく且つ平
滑な不織布を製造することが出来る。(2) It is possible to produce a nonwoven fabric that has substantially the same texture on both sides and is smooth, which has not been previously possible.
■ 加熱領域の中位長さ当りの不織布の製造能力を従来
の３〜６倍と向上できるので、コンパクトな製造装置で
製造することが可能となり作業能率の向上が図れる。(2) The production capacity of nonwoven fabric per medium length of the heating area can be improved to 3 to 6 times that of the conventional method, making it possible to produce with a compact production device and improving work efficiency.
第１図は本発明に係る不織布製造装置の実施例を示す側
断面図、第２図は本発明に係る不絹布製造方法の原理を
説明する拡大図、第３図は従来の′不織布製造装置を示
す側断面図である。FIG. 1 is a side cross-sectional view showing an embodiment of the non-woven fabric manufacturing apparatus according to the present invention, FIG. 2 is an enlarged view illustrating the principle of the non-silk fabric manufacturing method according to the present invention, and FIG. 3 is a conventional non-woven fabric manufacturing apparatus. FIG.
Claims (1)
となす不織布製造方法において、表面開口率が７０％以
上の吸引ドラムと反転ロールとの間に巻架されたワイヤ
ーネットからなり且つ該吸引ドラムへ接触開始するまで
に強制冷却された搬送コンベアに前記繊維集合体を移載
し、搬送コンベアで搬送される繊維集合体が前記吸引ド
ラムの吸引領域を通過する間に繊維集合体の非搬送面側
から吸引ドラムへ前記熱融着繊維の融着温度以上の熱風
を通過させて繊維集合体を加熱し、加熱領域出口におけ
る繊維集合体の温度が前記融着温度以上で且つ前記搬送
コンベアの搬送面温度が前記融着温度未満となる運転速
度で前記搬送コンベアを駆動することを特徴とする不織
布製造方法。 ２、熱融着繊維を混綿した繊維集合体を加熱して不織布
となす不織布製造装置において、表面開口率が７０％以
上の吸引ドラムと、該吸引ドラムと反転ロールとの間に
巻架されて所望運転速度で駆動される無端状のワイヤー
ネットからなる搬送コンベアと、該搬送コンベアのドラ
ム巻回領域の外周側に配され、搬送コンベアの搬送面へ
向って熱風を供給する熱風供給室と、前記搬送コンベア
のドラム巻回領域を除く適所に配され、前記吸引ドラム
の吸引領域の出口における搬送コンベアの搬送面温度を
前記熱融着繊維の融着温度未満とする冷気風量を搬送コ
ンベアを介して吸引する吸引室とからなることを特徴と
する不織布製造装置。[Claims] 1. In a method for manufacturing a nonwoven fabric in which a fiber aggregate mixed with heat-fusible fibers is heated to form a nonwoven fabric, the nonwoven fabric is wound between a suction drum having a surface aperture ratio of 70% or more and a reversing roll. The fiber aggregate is transferred to a conveyor that is made of a wire net and is forcibly cooled before it starts contacting the suction drum, and the fiber aggregate conveyed by the conveyor passes through the suction area of the suction drum. In the meantime, the fiber assembly is heated by passing hot air having a temperature higher than the melting temperature of the heat-fusible fibers from the non-conveyance side of the fiber aggregate to the suction drum, and the temperature of the fiber aggregate at the exit of the heating area increases to the temperature of the fiber aggregate at the exit of the heating area. A method for manufacturing a nonwoven fabric, characterized in that the conveyor is driven at an operating speed such that the temperature is higher than the temperature and the temperature of the conveying surface of the conveyor is lower than the fusion temperature. 2. In a nonwoven fabric manufacturing device that heats a fiber aggregate mixed with heat-fused fibers to form a nonwoven fabric, a suction drum having a surface aperture ratio of 70% or more, and a winding rack between the suction drum and a reversing roll. a conveyor made of an endless wire net driven at a desired operating speed; a hot air supply chamber disposed on the outer circumferential side of the drum winding area of the conveyor and supplying hot air toward the conveyance surface of the conveyor; Disposed at a suitable location other than the drum winding area of the conveyor, the cooling air flow is directed through the conveyor so that the temperature of the conveying surface of the conveyor at the exit of the suction area of the suction drum is lower than the melting temperature of the heat-sealable fibers. A nonwoven fabric manufacturing device comprising a suction chamber that performs suction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59210021A JPH0635697B2 (en) | 1984-10-05 | 1984-10-05 | Nonwoven fabric manufacturing method and nonwoven fabric manufacturing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59210021A JPH0635697B2 (en) | 1984-10-05 | 1984-10-05 | Nonwoven fabric manufacturing method and nonwoven fabric manufacturing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6189363A true JPS6189363A (en) | 1986-05-07 |
| JPH0635697B2 JPH0635697B2 (en) | 1994-05-11 |
Family
ID=16582507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59210021A Expired - Lifetime JPH0635697B2 (en) | 1984-10-05 | 1984-10-05 | Nonwoven fabric manufacturing method and nonwoven fabric manufacturing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0635697B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05179542A (en) * | 1991-08-19 | 1993-07-20 | Fuerutetsuku Kk | Felt and production thereof |
| JPH0649760A (en) * | 1992-07-28 | 1994-02-22 | Iwamoto Seisakusho:Kk | Method and apparatus for forming three-dimensional shape by thermal bonding of wrap |
| JP2011219873A (en) * | 2010-04-02 | 2011-11-04 | Jnc Corp | Processing apparatus and processing method for hot air treatment of nonwoven fabric |
| JP2014510199A (en) * | 2011-03-23 | 2014-04-24 | トリュッチュラー・ノンウーヴェンス・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング | Equipment for solidifying textile products with hot gas |
| JP2014519561A (en) * | 2011-05-19 | 2014-08-14 | オートニアム マネジメント アクチエンゲゼルシャフト | Equipment for forming fiber materials |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112239918B (en) * | 2020-10-12 | 2021-08-24 | 吉安市三菱超细纤维有限公司 | Non-woven fabric hot rolling mill |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4828036A (en) * | 1971-08-14 | 1973-04-13 | ||
| JPS5113873A (en) * | 1974-07-24 | 1976-02-03 | Sawada Menko Kk | |
| JPS55137250A (en) * | 1979-04-13 | 1980-10-25 | Inoue Kinzoku Kogyo Kk | Heat molding apparatus for producing nonwoven fabric |
| JPS5988959A (en) * | 1982-09-30 | 1984-05-23 | チコピ− | Nonwoven fabric, its manufacturing method and equipment |
-
1984
- 1984-10-05 JP JP59210021A patent/JPH0635697B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4828036A (en) * | 1971-08-14 | 1973-04-13 | ||
| JPS5113873A (en) * | 1974-07-24 | 1976-02-03 | Sawada Menko Kk | |
| JPS55137250A (en) * | 1979-04-13 | 1980-10-25 | Inoue Kinzoku Kogyo Kk | Heat molding apparatus for producing nonwoven fabric |
| JPS5988959A (en) * | 1982-09-30 | 1984-05-23 | チコピ− | Nonwoven fabric, its manufacturing method and equipment |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05179542A (en) * | 1991-08-19 | 1993-07-20 | Fuerutetsuku Kk | Felt and production thereof |
| JPH0649760A (en) * | 1992-07-28 | 1994-02-22 | Iwamoto Seisakusho:Kk | Method and apparatus for forming three-dimensional shape by thermal bonding of wrap |
| JP2011219873A (en) * | 2010-04-02 | 2011-11-04 | Jnc Corp | Processing apparatus and processing method for hot air treatment of nonwoven fabric |
| JP2014510199A (en) * | 2011-03-23 | 2014-04-24 | トリュッチュラー・ノンウーヴェンス・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング | Equipment for solidifying textile products with hot gas |
| JP2014519561A (en) * | 2011-05-19 | 2014-08-14 | オートニアム マネジメント アクチエンゲゼルシャフト | Equipment for forming fiber materials |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0635697B2 (en) | 1994-05-11 |
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