JPS63203863A - Production of soft nonwoven fabric - Google Patents
Production of soft nonwoven fabricInfo
- Publication number
- JPS63203863A JPS63203863A JP62031585A JP3158587A JPS63203863A JP S63203863 A JPS63203863 A JP S63203863A JP 62031585 A JP62031585 A JP 62031585A JP 3158587 A JP3158587 A JP 3158587A JP S63203863 A JPS63203863 A JP S63203863A
- Authority
- JP
- Japan
- Prior art keywords
- nonwoven fabric
- lubricant
- crepe
- production
- pressing body
- 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.)
- Pending
Links
- 239000004745 nonwoven fabric Substances 0.000 title claims description 48
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 238000003825 pressing Methods 0.000 claims description 13
- 239000000314 lubricant Substances 0.000 claims description 11
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000003672 processing method Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 22
- 238000012545 processing Methods 0.000 description 11
- 239000000835 fiber Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000007921 spray Substances 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007756 gravure coating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000009291 secondary effect Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Treatment Of Fiber Materials (AREA)
- 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〕
本発明は柔軟不織布の製造方法に係り、いわゆるクレー
プ加工に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for producing a flexible nonwoven fabric, and relates to so-called crepe processing.
従来より、不織布に柔軟性を付与するために、いわゆる
クレープ加工と称される柔軟性処理方法が用いられてい
る。Conventionally, a flexibility treatment method called so-called crepe processing has been used to impart flexibility to nonwoven fabrics.
このクレープ加工の原理はロール等により走行駆動され
る不織布を上方から押圧体で押圧することにより、抑圧
体との接触摩擦抵抗で不織布の表面速度を深層部の走行
速度より遅くし、その速度差によりしわを生じさせるも
のである。The principle of crepe processing is that by pressing a nonwoven fabric driven by rolls or the like from above with a pressing body, the surface speed of the nonwoven fabric is made slower than the traveling speed of the deep layer due to contact friction resistance with the pressing body, and the speed difference is This causes wrinkles.
しかし、不織布を抑圧体で押圧しているため押圧力が大
きすぎたり、不織布の走行スピードを上げすぎたりする
と、摩擦熱により繊維が溶融したり、また、亀裂により
穴があいたり、リントが生じて異物が混入したようにな
ったり、さらには、静電気や糸くずが発生したりするの
で、クレープ加工のスピードアップがむずかしかった。However, since the nonwoven fabric is pressed by a suppressor, if the pressing force is too large or the running speed of the nonwoven fabric is increased too much, the fibers may melt due to frictional heat, or cracks may form holes or lint may occur. It has been difficult to speed up the crepe process because it can cause foreign matter to get mixed in, as well as generate static electricity and lint.
本発明は、このような問題点を解決せんとするもので、
不織布をクレープ加工する際に摩擦熱によって不織布が
不良となることがなく、スピードアップを図れて生産性
も向上させられるようにすることを技術的課題とするも
のである。The present invention aims to solve these problems,
The technical objective is to make it possible to crepe a nonwoven fabric without making it defective due to frictional heat, speeding up the process, and improving productivity.
本発明は前記技術的課題を解決するため、駆動表面上を
走行する不織布の表面に抑圧体を圧接して柔軟不織布を
得る不織布のクレープ加工法において、前記不織布と押
圧体との当接部を含め、この当接部より上流側の不織布
に潤滑剤を塗布することとした。In order to solve the above-mentioned technical problem, the present invention provides a crepe processing method for a nonwoven fabric to obtain a flexible nonwoven fabric by pressing a pressing body against the surface of a nonwoven fabric running on a driving surface. It was decided to apply a lubricant to the nonwoven fabric upstream of this contact area.
不織布の原料繊維としては合成繊維の他、羊毛、綿、バ
ルブ等天然繊維でも良い。In addition to synthetic fibers, the raw material fibers for the nonwoven fabric may be natural fibers such as wool, cotton, and bulbs.
不織布の製造方法は従来より公知の方法を利用できる。Conventionally known methods can be used for manufacturing the nonwoven fabric.
これは抄紙方法を利用した湿式法と、そうでない乾式法
とに大別され、乾式法はさらに接着剤でフィラメントを
結合する接着剤型、フィラメント同士を機械的に絡ませ
て結合した機械結合型、紡糸したフィラメントを静電気
や空気流で移動補集面に集積する紡糸型に分けられる。This method is roughly divided into a wet method that uses a papermaking method, and a dry method that does not.The dry method is further divided into an adhesive type that binds filaments with adhesive, a mechanical bonding type that connects filaments by mechanically entangling them, and a dry method that uses papermaking methods. It can be divided into spinning types that collect spun filaments on a moving collection surface using static electricity or air currents.
また、紡糸型の不織布製造方法としてはいわゆるスプレ
イドファイバー法、スパンボンド法、スプリットファイ
バー法、網状法等を例示でき、これらのいずれでも利用
できる。In addition, examples of the spinning type nonwoven fabric manufacturing method include a so-called sprayed fiber method, a spunbond method, a split fiber method, a reticular method, etc., and any of these methods can be used.
これら製造方法により製造される不織布は引き取りロー
ル等により駆動走行されてクレープ加工機に供給される
。The nonwoven fabric produced by these production methods is driven and run by a take-up roll or the like and supplied to a crepe processing machine.
本発明に使用するクレープ加工機は、駆動表面上を走行
する不織布の表面に押圧体を圧接する構造ならばどのよ
うなものでもよく、駆動表面としては、第１図のように
、一般に回転ロールＩが使用される。また、押圧体２は
不織布３と当接する面がサンドベーパーの如き粗面とし
て形成されているものでも良い。The crepe processing machine used in the present invention may have any structure as long as it presses a pressing body against the surface of a nonwoven fabric running on a driving surface, and the driving surface is generally a rotating roll as shown in FIG. I is used. Further, the pressing body 2 may have a surface that comes into contact with the nonwoven fabric 3 and is formed as a rough surface such as sand vapor.
そして、潤滑剤を塗布する位置は、不織布の製造装置と
クレープ加工機との間であり、前記不織布と押圧体との
当接部を含め、この当接部よりも上流側ならばどこでも
よい。The lubricant may be applied anywhere between the nonwoven fabric manufacturing apparatus and the crepe processing machine, including the abutting area between the nonwoven fabric and the pressing body, as long as it is upstream of this abutting area.
また、潤滑剤の塗布方法は、第１図のようにスプレーガ
ン４で塗布するスプレー法、第２図の如く、潤滑剤の貯
溜槽５中に不織布３が浸漬されるように、ロール６で案
内する方法、図示しないが、蝕刻ロールを用いて゛貯溜
槽中の潤滑剤を不織布へと塗布するグラビアコート法等
どのような塗布方法でも使用できる。The lubricant can be applied using a spray method using a spray gun 4 as shown in FIG. Although not shown in the drawings, any guiding method may be used, such as a gravure coating method in which the lubricant in the reservoir is applied to the nonwoven fabric using an etching roll.
そして、潤滑剤を塗布することにより摩擦抵抗が小さく
なり、摩擦熱の発生が押さえられる。By applying the lubricant, the frictional resistance is reduced and the generation of frictional heat is suppressed.
ここで、潤滑剤としては水、界面活性剤水溶液、防水剤
水溶液等、不織布に塗布しても不織布の性質に同等影響
を与えずに摩擦抵抗のみを小さくできるものや、不織布
に塗布することにより不織布の性質を改善させることが
できると同時に摩擦抵抗を小さくできるものであればど
のようなものでも良い。Here, lubricants include water, a surfactant aqueous solution, a waterproofing agent aqueous solution, etc., which can reduce frictional resistance without affecting the properties of the nonwoven fabric even when applied to the nonwoven fabric, or those that can be applied to the nonwoven fabric to reduce frictional resistance. Any material may be used as long as it can improve the properties of the nonwoven fabric and reduce frictional resistance at the same time.
界面活性剤等不織布の改質剤を潤滑剤として供給する場
合、押圧体によりこの改質剤が不織布の全域にわたり均
一に広げられて塗布されるという副次的な作用も奏し、
これにより不織布の改質特性を均一にできる。When a modifier for nonwoven fabric such as a surfactant is supplied as a lubricant, the secondary effect is that the modifier is uniformly spread and applied over the entire area of the nonwoven fabric by the pressing body,
This allows the modification characteristics of the nonwoven fabric to be made uniform.
潤滑剤の塗布量は、あまり多すぎるとスリップしてクレ
ープ加工ができなくなり、適量範囲がある。この範囲は
不織布を組成する繊維の種類、不織布の目付、及び不織
布の走行速度等により左右されるものであるが、通常は
０．１〜Ｉ９／＊”の範囲で適宜調整される。There is an appropriate amount of lubricant to apply, as too much lubricant will cause slippage and make crepe processing impossible. This range depends on the type of fibers constituting the nonwoven fabric, the basis weight of the nonwoven fabric, the running speed of the nonwoven fabric, etc., but is usually adjusted appropriately within the range of 0.1 to I9/*''.
以下、本発明の実施例を比較例とともに説明する。 Examples of the present invention will be described below along with comparative examples.
この実施例は、スパンボンド法により形成した、ポリプ
ロピレン製不織布（目付２５ｇ／ｚ’）にスプレー法で
水を塗布した後、クレープ加工機により柔軟加工を施し
たもので、水の塗布量、不織布の走行速度等を適宜変更
して実験を行い、クレープ加工前後の不織布の表面状態
、リントの発生情況、柔軟性の官能評価を行った。結果
を第１表に示す。In this example, a polypropylene nonwoven fabric (fabric weight 25 g/z') formed by a spunbond method was coated with water using a spray method, and then softened using a crepe processing machine. Experiments were conducted by changing the running speed, etc. of the nonwoven fabric as appropriate, and sensory evaluations of the surface condition, lint generation, and flexibility of the nonwoven fabric before and after crepe processing were conducted. The results are shown in Table 1.
なお、結果を示す表中、リントの発生量はｌ（極大）、
２（大）、３（中）、４（小）、５（極小）で示し、柔
軟性はｌ （繊維がほとんど溶融し、シート状となって
脆くなる）、２（繊維が部分的に溶融し、所々穴があき
脆くなる）、３（繊維が部分的にやや溶融しているとこ
ろがあり、若干がさがさした感じがある）、４（非常に
柔軟である）で示した。In addition, in the table showing the results, the amount of lint generated is l (maximum),
The flexibility is indicated by 2 (large), 3 (medium), 4 (small), and 5 (extremely small). The fibers were rated as 3 (the fibers were slightly melted in some places and felt a bit loose), and 4 (very flexible).
以下、本頁余白
この表から明らかなように、水をスプレーにより不織布
に塗布してクレープ加工を施したものは、不織布の走行
速度を上げてもクレープ加工後の不織布の表面に異常が
見られないが、水を塗布しないものについては、走行速
度を上げると不織布の表面の溶融やリントの多量発生等
の異常が多く見られるようになる。また、水のスプレー
量が多すぎろと、不織布がクレープ加工機内でスリップ
してクレープ加工がしにくくなるので、柔軟性付与が困
難となる。Below is the margin of this page.As is clear from this table, when the nonwoven fabric is creped by spraying water on it, no abnormalities are observed on the surface of the nonwoven fabric after the crepe process, even when the running speed of the nonwoven fabric is increased. However, for those that are not coated with water, when the running speed is increased, abnormalities such as melting of the surface of the nonwoven fabric and generation of large amounts of lint often occur. Furthermore, if the amount of water sprayed is too large, the nonwoven fabric will slip in the crepe processing machine, making it difficult to crepe it, making it difficult to impart flexibility.
本発明によれば、潤滑剤を塗布することによりクレープ
加工を施しても不織布の表面に不良を生じさせることが
なく、シかも、不織布の走行速度を従来より上げること
ができるので、生産性を向上させることができる。According to the present invention, by applying a lubricant, even if crepe processing is performed, defects will not be caused on the surface of the nonwoven fabric, and the running speed of the nonwoven fabric can also be increased compared to the conventional method, thereby increasing productivity. can be improved.
第１図は本発明方法に用いる装置の一例を示す概略図、
第２図は他の例を示す概略図である。
ｌ・・メインロール、 ２・・押圧体、３・・不織布、
４・・スプレーガン。FIG. 1 is a schematic diagram showing an example of an apparatus used in the method of the present invention;
FIG. 2 is a schematic diagram showing another example. l...Main roll, 2...Press body, 3...Nonwoven fabric,
4. Spray gun.
Claims (1)
接して柔軟不織布を得る不織布のクレープ加工法におい
て、 前記不織布と押圧体との当接部を含め、この当接部より
上流側の不織布に潤滑剤を塗布することを特徴とする柔
軟不織布の製造方法。(1) In a nonwoven fabric crepe processing method for obtaining a flexible nonwoven fabric by pressing a pressing body against the surface of a nonwoven fabric running on a driving surface, the upstream side of this contact area, including the contact area between the nonwoven fabric and the pressing body, A method for producing a flexible nonwoven fabric, comprising applying a lubricant to the nonwoven fabric.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62031585A JPS63203863A (en) | 1987-02-16 | 1987-02-16 | Production of soft nonwoven fabric |
| CA 547972 CA1283764C (en) | 1986-09-29 | 1987-09-28 | Very soft polyolefin spunbonded nonwoven fabric and its production method |
| CN87106614A CN1014331B (en) | 1986-09-29 | 1987-09-29 | Very soft polyolefin spunbonded non woven fabric and its production method |
| KR1019870010844A KR910007629B1 (en) | 1986-09-29 | 1987-09-29 | Polyolefin nonwoven fabric and its production method |
| EP87308627A EP0269221B1 (en) | 1986-09-29 | 1987-09-29 | Very soft polyolefin spunbonded nonwoven fabric and its production method |
| DE87308627T DE3786891T2 (en) | 1986-09-29 | 1987-09-29 | Very soft spunbonded nonwoven and process for making the same. |
| US07/102,431 US4810556A (en) | 1986-09-29 | 1987-09-29 | Very soft polyolefin spunbonded nonwoven fabric |
| US07/565,213 US5078935A (en) | 1986-09-29 | 1990-08-09 | Method of producing a very soft polyolefin spunbonded nonwoven fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62031585A JPS63203863A (en) | 1987-02-16 | 1987-02-16 | Production of soft nonwoven fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63203863A true JPS63203863A (en) | 1988-08-23 |
Family
ID=12335266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62031585A Pending JPS63203863A (en) | 1986-09-29 | 1987-02-16 | Production of soft nonwoven fabric |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63203863A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5477791A (en) * | 1977-11-28 | 1979-06-21 | Cluett Peabody & Co Inc | Precisely damping apparatus for finishing * pressing and preshrinking integrally |
| JPS58169566A (en) * | 1982-03-19 | 1983-10-06 | リチヤ−ド・ロ−デス・ウオルトン | Method and apparatus for forming ultrafine wrinkles |
-
1987
- 1987-02-16 JP JP62031585A patent/JPS63203863A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5477791A (en) * | 1977-11-28 | 1979-06-21 | Cluett Peabody & Co Inc | Precisely damping apparatus for finishing * pressing and preshrinking integrally |
| JPS58169566A (en) * | 1982-03-19 | 1983-10-06 | リチヤ−ド・ロ−デス・ウオルトン | Method and apparatus for forming ultrafine wrinkles |
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