JP2670673B2 - Method for producing grain-like nonwoven fabric - Google Patents
Method for producing grain-like nonwoven fabricInfo
- Publication number
- JP2670673B2 JP2670673B2 JP62140531A JP14053187A JP2670673B2 JP 2670673 B2 JP2670673 B2 JP 2670673B2 JP 62140531 A JP62140531 A JP 62140531A JP 14053187 A JP14053187 A JP 14053187A JP 2670673 B2 JP2670673 B2 JP 2670673B2
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- nonwoven fabric
- fibers
- shrinkable
- latent heat
- 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.)
- Expired - Lifetime
Links
Landscapes
- Nonwoven Fabrics (AREA)
Description
【発明の詳細な説明】
【産業上の利用分野】
本発明は、表面に多数のしぼ調の凹凸を持ち、しかも
結合剤を含有しないしぼ調不織布の製造方法に関し、特
にタオルや肌着等の用途に適したしぼ調不織布の製造方
法に関するものである。
【従来の技術及び発明が解決しようとする課題】
不織布は、織物や編物と異なり、繊維を紡績及び編織
することなく得られるものであるため、安価に製造でき
各種の用途に用いられている。しかし、織物等に比べて
風合の点で劣るため、衣料品や布製身回品としての用途
に適するものではなかった。
そこで、従来より、不織布の表面に多数の凹凸を形成
させ、しぼ調不織布とし風合の改善を図っている。この
しぼ調不織布の製造方法は、以下のとおりである。ま
ず、潜在感熱収縮性繊維と非収縮性繊維とを混合してウ
ェブを作製し、このウェブに結合剤溶液を付与する。次
いで、結合剤溶液を半乾燥状態としてウェブ中の構成繊
維を仮接着せしめた後、潜在感熱収縮性繊維を収縮させ
非収縮性繊維を撓ませて、ウェブ表面に多数の凹凸を形
成させる。その後、結合剤溶液を完全に乾燥させて、し
ぼ調不織布を得るというものである。
しかしながら、このしぼ調不織布は全体に結合剤が固
着しているため、柔軟性及び手触りの点で硬さが残って
おり、十分の風合の改善は行なわれていない。また、構
成繊維間が結合剤による結合であるため、不織布の強度
が低い。従って、このような不織布は、簡易手拭き等の
限られた用途に用いられるのみで、衣料品やタオル等の
布製身回品として用いることはできなかった。
そこで、本発明者は、この点を改良すべく鋭意検討し
た結果、結合剤を用いずに強度の高いしぼ調不織布を得
ることに成功し、本発明に到ったものである。
【課題を解決するための手段及び作用】
即ち、本発明は、潜在感熱収縮性繊維５〜50重量％と
レーヨン繊維50〜90重量％とよりなり、各繊維相互間が
未結合状態の繊維ウェブを準備し、該繊維ウェブに高圧
柱状水流を施すことによって、該潜在感熱収縮性繊維と
該レーヨン繊維相互間を緊密に絡合せしめた後、熱を付
与して、該潜在感熱収縮性繊維に収縮を発現させること
によって、該レーヨン繊維に撓みを生じさせ、不織布表
面に無作為な多数の凹凸を形成させることを特徴とす
る、結合剤を含有しないしぼ調不織布の製造方法に関す
るものである。
本発明で用いる潜在感熱収縮性繊維とは、熱を与える
ことにより収縮（本発明においては捲縮を含む）を発現
する繊維である。このような潜在的に収縮性を有する繊
維は、例えば、紡糸中に高度な延伸を施すことによっ
て、作成することができる。また、収縮率の異なる二成
分を別個のノズル孔より溶融紡糸すると共に貼り合わせ
た複合繊維（サイドバイサイド型複合繊維）であっても
よい。この複合繊維は、熱を与えることにより、一方の
成分のみが収縮を起こすため、捲縮を発現する繊維であ
る。また、本発明で用いる潜在感熱収縮性繊維は、熱を
与えることにより収縮するが、熱を与えることによって
伸長するという性質は具備しないものである。即ち、熱
を与えると収縮を発現し、その後、更に熱を与えると自
発的に伸長する潜在感熱収縮・潜在感熱伸長型繊維は、
本発明で言う潜在感熱収縮性繊維に包含されない。
本発明で用いるレーヨン繊維は、前記の潜在感熱収縮
性繊維が収縮を発現する温度では、収縮も伸長も起こさ
ない繊維である。
上記した潜在感熱収縮性繊維とレーヨン繊維とを用い
て、繊維ウェブを形成する。繊維ウェブを形成するに
は、例えば、潜在感熱収縮性繊維とレーヨン繊維とを均
一に混綿した後、カード法やエアーレイ法を適用すれば
良い。また、潜在感熱収縮性繊維にカード法等を適用し
た得られたウェブと、レーヨン繊維にカード法等を適用
して得られたウェブとを積層して、潜在感熱収縮性繊維
とレーヨン繊維とからなる繊維ウェブを形成しても良
い。繊維ウェブ中において、潜在感熱収縮性繊維相互
間、レーヨン繊維相互間、及び潜在感熱収縮性繊維とレ
ーヨン繊維相互間は、未結合状態となっている。即ち、
各繊維相互間が結合剤で結合されていたり、自己融着さ
れていないものである。従って、繊維ウェブに外力を加
えた場合、例えば、高圧柱状水流を付与した場合、各繊
維は自由に運動しうるものである。
繊維ウェブ中における潜在感熱収縮性繊維とレーヨン
繊維との重量割合は、前者が５〜50重量％で、後者が50
〜95重量％である。潜在感熱収縮性繊維が５重量％未満
であると、後の工程で熱を付与しても、総和的な収縮発
現が少なくなり、レーヨン繊維を十分撓ませることがで
きなくなるので、好ましくない。また、潜在感熱収縮性
繊維が50重量％を超えると、レーヨン繊維の量が相対的
に少なくなり、レーヨン繊維の撓み量が少なくなって、
不織布表面に多数の凹凸を形成しにくくなるので、好ま
しくない。
この繊維ウェブには高圧柱状水流が施され、潜在感熱
収縮性繊維とレーヨン繊維とは、相互に緊密に絡合せし
められる。このように、潜在感熱収縮性繊維とレーヨン
繊維とが緊密に絡合せしめられるのは、繊維ウェブ中に
おいて、各繊維相互間が未結合の状態となっており、高
圧柱状水流の付与によって、各繊維が自由に運動するた
めである。ここで、高圧柱状水流とは、微細な直径のノ
ズル孔を通して高圧で水を噴出させて得られるものであ
る。具体的には、ノズル孔径0.001〜0.1cm程度のノズル
を用いて、圧力５〜400kg/cm2で水を噴出させて得られ
るものである。このような高圧柱状水流を繊維ウェブに
作用させると、構成繊維が運動し、隣接する他の構成繊
維と相互に緊密に絡合する。その結果、結合剤を付与し
なくとも引張強度の高い不織布を得ることができるので
ある。
各繊維相互間が緊密に絡合せしめられた繊維ウェブ
（これを繊維フリースと言う）には、熱が付与される。
この熱の付与は、潜在感熱収縮性繊維に収縮を発現させ
るためのものである。従って、熱量或は加熱温度は、潜
在感熱収縮性繊維の収縮発現温度によって、適宜決定さ
れる。
潜在感熱収縮性繊維に収縮が発現しても、レーヨン繊
維には収縮が発現しないので、繊維フリース中において
レーヨン繊維に撓みが生じる。即ち、潜在感熱収縮性繊
維とレーヨン繊維とが緊密に絡合している状態で、潜在
感熱収縮性繊維に収縮が発現すると、レーヨン繊維の絡
合点間の距離が縮まり、レーヨン繊維の未絡合部分が撓
むことになるのである。そして、この結果、得られた不
織布表面には、多数のしぼ調の無作為な凹凸が形成され
るのである。なお、無作為な凹凸が形成されるのは、繊
維フリース中において、潜在感熱収縮性繊維が一定方向
に配列していないためである。
以上のようにして、不織布表面に無作為な多数の凹凸
を持つしぼ調不織布が得られる。なお、熱を付与して、
潜在感熱収縮性繊維に収縮発現させた後、得られた不織
布が水（高圧柱状水流の付与による水、或は湿熱付与に
よる水等）を含有しているときは、適宜乾燥機に導入し
て、水を蒸発させる。また、熱の付与等によって、高圧
柱状水流の付与による水が既に蒸発しているときは、乾
燥機に導入することなく、しぼ調不織布が得られる。
【実施例】
実施例１
繊維長64mm,繊維径３デニールで潜在感熱収縮性のポ
リエステル繊維30重量％と、繊維長64mm,繊維径1.5デニ
ールの非収縮性のレーヨン繊維70重量％とを混合して、
カード法にて目付50g/m2の繊維ウェブを得た。
この繊維ウェブを平板上に載置し、ノズル径0.02cmの
ノズルを用いて圧力50kg/cm2で水を繊維ウェブ上に均一
に噴出させた。なお、ノズル先端と繊維ウェブの距離は
10cmとした。このようにして得られた繊維フリースは、
構成繊維相互間が緊密に絡合したものであった。
この繊維フリース全体に90℃の水蒸気を付与し、繊維
フリース中のポリエステル繊維を収縮させた。その後、
100℃の乾燥機中に導入して乾燥させ、目付50g/m2のし
ぼ調不織布を得た。
このしぼ調不織布は、不織布の両表面に多数の無作為
に形成された凹凸を有していた。そして、このしぼ調不
織布の物性は、経強度5.4kg/5cm巾，緯強度16kg/5cm
巾，経伸度96％，緯伸度48％であり、且つ柔軟性が良好
で手触りもよく、風合の良好なものであった。
実施例２
ナイロン６とナイロン66とよりなる二成分系の潜在捲
縮性サイドバイサイド型複合繊維であって、繊維長72m
m,繊維径1.6デニールの複合繊維100重量％を用いてカー
ド法にて目付25g/m2の第一繊維ウェブを得た。また、繊
維長64mm,繊維径1.5デニールのレーヨン繊維100重量％
を用いてカード法にて目付25g/m2の第二繊維ウェブを得
た。この第一繊維ウェブと第二繊維ウェブとを積層して
繊維ウェブを平板上に載置し、実施例１と同様の方法に
て繊維フリースを作成した。この結果、第一繊維ウェブ
中の複合繊維と第二繊維ウェブ中のレーヨン繊維とは層
の境界で相互に緊密に絡合すると共に各層中でも各構成
繊維が相互に緊密に絡合した繊維フリースが得られた。
この繊維フリースを沸騰水の中に導入し、繊維フリー
ス中の複合繊維を捲縮させた。その後、100℃の乾燥機
にて乾燥させ、目付50g/m2のしぼ調不織布を得た。
このしぼ調不織布は、不織布の一方の表面にのみ多数
の無作為に形成された凹凸を有しており、この凹凸の高
さは実施例１のものに比べて高かった。そして、このし
ぼ調不織布の物性は、経強度3.5kg/5cm巾，緯強度15kg/
5cm巾，緯伸度105％，緯伸度58％であり、且つ柔軟性が
良好で手触りもよく、風合の良好なものであった。
実施例３
繊維長38mm,繊維径1.5デニールで潜在感熱収縮性のア
クリル繊維100重量％を用いカード法にて、目付20g/m2
の中間繊維ウェブを作成した。また、繊維長64mm,繊維
径1.5デニールの非収縮性のレーヨン繊維100重量％を用
いカード法にて、目付20g/m2の二枚の繊維ウェブを作成
した。この二枚の繊維ウェブで中間繊維ウェブを挟ん
で、三層構造の繊維ウェブを作成した。この三層構造の
繊維ウェブを平板上に載置し、実施例１と同様の方法に
て繊維フリースを作成した。この結果、中間繊維ウェブ
中のアクリル繊維は表裏面の繊維ウェブ中のレーヨン繊
維と層の境界で相互に緊密に絡合すると共に各層中でも
各構成繊維が相互に緊密に絡合した繊維フリースが得ら
れた。
この繊維フリースを150℃の熱風中に導入し、繊維フ
リース中のアクリル繊維を捲縮させ、目付60g/m2のしぼ
調不織布を得た。
このしぼ調不織布は、不織布の両表面に多数の無作為
に形成された凹凸を有しており、この凹凸の高さは実施
例２のものと同等であった。そして、このしぼ調不織布
の物性は、経強度5.5kg/5cm巾，緯強度16.5kg/5cm巾，
経伸度115％，緯伸度65％であり、且つ柔軟性が良好で
手触りもよく、風合の良好なものであった。
【発明の効果】
以上説明したように、本発明に係る方法で得られしぼ
調不織布は、構成繊維相互間が結合剤によって結合され
ておらず、高圧柱状水流によって緊密に絡合されている
ため、柔軟性に優れると共に、強度（引張強度）が高い
ので極めて形態安定性に優れている。そして、更に表面
には無作為な多数の凹凸が主としてレーヨン繊維によっ
て形成されているので、手触りがよく風合に優れてい
る。
従って、本発明に係る方法で得られたしぼ調不織布
は、従来の不織布では用いられなかった各種の用途、例
えば、タオルや肌着等に用いることができ、産業上極め
て有益なものである。Description: TECHNICAL FIELD The present invention relates to a method for producing a grain-like nonwoven fabric having a large number of grain-like irregularities on the surface and containing no binder, and particularly for applications such as towels and underwear. The present invention relates to a method for producing a grain-like nonwoven fabric suitable for 2. Description of the Related Art Nonwoven fabrics, unlike woven fabrics and knitted fabrics, are obtained without spinning or knitting fibers, and thus can be manufactured at low cost and are used for various purposes. However, since it is inferior in texture to fabrics and the like, it is not suitable for use as clothing and personal items. Therefore, conventionally, a large number of irregularities are formed on the surface of the non-woven fabric to form a grain-like non-woven fabric to improve the texture. The method for producing this grain-like nonwoven fabric is as follows. First, a latent heat-shrinkable fiber and a non-shrinkable fiber are mixed to prepare a web, and a binder solution is applied to this web. Then, the binder solution is semi-dried to temporarily bond the constituent fibers in the web, and then the latent heat-shrinkable fibers are contracted and the non-shrinkable fibers are bent to form a large number of irregularities on the web surface. Then, the binder solution is completely dried to obtain a grain-like nonwoven fabric. However, since the binder is fixed to the whole of the grain-like nonwoven fabric, the hardness remains in terms of flexibility and touch, and the texture is not sufficiently improved. Further, since the constituent fibers are bonded by the binder, the strength of the nonwoven fabric is low. Therefore, such a non-woven fabric is used only for limited applications such as simple hand-wiping, and cannot be used as a cloth personal item such as clothing or towel. Then, as a result of intensive studies to improve this point, the present inventor succeeded in obtaining a grain-like nonwoven fabric having high strength without using a binder, and arrived at the present invention. Means and Actions for Solving the Problems That is, the present invention comprises 5 to 50% by weight of latent heat-shrinkable fibers and 50 to 90% by weight of rayon fibers, and a fiber web in which each fiber is not bonded to each other Is prepared, and the latent heat-shrinkable fibers and the rayon fibers are intimately entangled with each other by applying a high-pressure columnar water flow to the fiber web, and then heat is applied to the latent heat-shrinkable fibers. The present invention relates to a method for producing a grain-free nonwoven fabric containing no binder, which is characterized by causing the rayon fiber to bend by causing shrinkage to form many irregularities on the surface of the nonwoven fabric. The latent heat-shrinkable fiber used in the present invention is a fiber that exhibits shrinkage (including crimp in the present invention) by applying heat. Such potentially shrinkable fibers can be made, for example, by subjecting them to a high degree of drawing during spinning. Further, it may be a composite fiber (side-by-side composite fiber) obtained by melt-spinning two components having different shrinkage rates from separate nozzle holes and bonding them together. This composite fiber is a fiber that develops crimps because only one component contracts when heat is applied. Further, the latent heat-shrinkable fiber used in the present invention does not have the property of shrinking when heat is applied, but elongating when heat is applied. That is, the latent heat-sensitive shrinkage / latent heat-expandable fiber that contracts when heat is applied and then spontaneously expands when heat is applied is
It is not included in the latent heat-shrinkable fibers referred to in the present invention. The rayon fiber used in the present invention is a fiber that neither shrinks nor stretches at the temperature at which the latent heat-shrinkable fiber develops shrinkage. The latent heat-shrinkable fiber and rayon fiber described above are used to form a fibrous web. To form the fibrous web, for example, the latent heat-shrinkable fiber and the rayon fiber are uniformly mixed and then the card method or the air ray method is applied. Further, by laminating a web obtained by applying the card method or the like to the latent heat-shrinkable fiber and a web obtained by applying the card method or the like to the rayon fiber, the latent heat-shrinkable fiber and the rayon fiber are combined. A fibrous web may be formed. In the fibrous web, latent heat-shrinkable fibers, rayon fibers, and latent heat-shrinkable fibers and rayon fibers are in an unbonded state. That is,
The fibers are not bound to each other with a binder or are not self-fused. Therefore, when an external force is applied to the fibrous web, for example, when a high-pressure columnar water stream is applied, each fiber can move freely. The weight ratio of the latent heat-shrinkable fiber to the rayon fiber in the fibrous web is 5 to 50% by weight for the former and 50 for the latter.
~ 95% by weight. When the latent heat-shrinkable fiber content is less than 5% by weight, the total shrinkage expression is reduced even if heat is applied in the subsequent step, and the rayon fiber cannot be sufficiently bent, which is not preferable. Also, when the latent heat-shrinkable fiber exceeds 50% by weight, the amount of rayon fiber becomes relatively small, and the amount of deflection of rayon fiber becomes small,
It is difficult to form many irregularities on the surface of the nonwoven fabric, which is not preferable. The fibrous web is subjected to a high pressure columnar water stream to intimately entangle the latent heat-shrinkable fibers with the rayon fibers. In this way, the latent heat-shrinkable fibers and the rayon fibers are intimately entangled with each other in the fiber web because the fibers are not bonded to each other and the high-pressure columnar water flow imparts This is because the fibers move freely. Here, the high-pressure columnar water flow is obtained by ejecting water at high pressure through a nozzle hole having a fine diameter. Specifically, it is obtained by ejecting water at a pressure of 5 to 400 kg / cm 2 using a nozzle having a nozzle hole diameter of about 0.001 to 0.1 cm. When such a high-pressure columnar water stream is applied to the fibrous web, the constituent fibers move and intimately entangle with other adjacent constituent fibers. As a result, a nonwoven fabric having high tensile strength can be obtained without applying a binder. Heat is applied to the fibrous web (called a fiber fleece) in which the respective fibers are intimately entangled with each other.
The application of heat is for causing the latent heat-shrinkable fiber to exhibit shrinkage. Therefore, the amount of heat or the heating temperature is appropriately determined by the contraction development temperature of the latent heat-shrinkable fiber. Even if the latent heat-shrinkable fiber contracts, the rayon fiber does not contract, so that the rayon fiber bends in the fiber fleece. That is, when the latent heat-shrinkable fiber and the rayon fiber are intimately entangled with each other, when the latent heat-shrinkable fiber contracts, the distance between the entanglement points of the rayon fiber is reduced, and the rayon fiber is not entangled. The joint part will bend. As a result, a large number of grain-like random irregularities are formed on the surface of the obtained non-woven fabric. The random irregularities are formed because the latent heat-shrinkable fibers are not arranged in a fixed direction in the fiber fleece. As described above, a grain-like nonwoven fabric having a large number of irregularities on the surface of the nonwoven fabric is obtained. By applying heat,
After the latent heat-shrinkable fiber is shrunk and expressed, when the resulting nonwoven fabric contains water (water by applying a high-pressure columnar water stream, water by applying heat of moisture, etc.), it is appropriately introduced into a dryer. Evaporate the water. In addition, when the water has already evaporated due to the application of the high-pressure columnar water flow due to the application of heat, a grain-like nonwoven fabric can be obtained without introducing it into the dryer. Example 1 A mixture of 30% by weight of latent heat-shrinkable polyester fiber having a fiber length of 64 mm and a fiber diameter of 3 denier and 70% by weight of non-shrinkable rayon fiber having a fiber length of 64 mm and a fiber diameter of 1.5 denier was mixed. hand,
A fiber web having a basis weight of 50 g / m 2 was obtained by the card method. This fibrous web was placed on a flat plate, and water was uniformly ejected onto the fibrous web at a pressure of 50 kg / cm 2 using a nozzle having a nozzle diameter of 0.02 cm. The distance between the nozzle tip and the fiber web is
It was 10 cm. The fiber fleece thus obtained is
The constituent fibers were intimately entangled with each other. 90 ° C. steam was applied to the entire fiber fleece to shrink the polyester fiber in the fiber fleece. afterwards,
It was introduced into a dryer at 100 ° C. and dried to obtain a grain-like nonwoven fabric having a basis weight of 50 g / m 2 . This grain-like nonwoven fabric had a large number of randomly formed irregularities on both surfaces of the nonwoven fabric. And the physical properties of this grain-like nonwoven fabric are as follows: warp strength 5.4kg / 5cm width, weft strength 16kg / 5cm
It had a width, a warp elongation of 96%, and a weft elongation of 48%, and it had good flexibility, good feel to the touch, and good texture. Example 2 A bicomponent latent crimpable side-by-side type composite fiber composed of nylon 6 and nylon 66, having a fiber length of 72 m.
A first fiber web having a basis weight of 25 g / m 2 was obtained by the card method using 100% by weight of the composite fiber having m and a fiber diameter of 1.6 denier. In addition, rayon fiber with a fiber length of 64 mm and a fiber diameter of 1.5 denier is 100% by weight.
Was used to obtain a second fibrous web having a basis weight of 25 g / m 2 by the card method. The first fibrous web and the second fibrous web were laminated, the fibrous web was placed on a flat plate, and a fibrous fleece was prepared in the same manner as in Example 1. As a result, the composite fiber in the first fibrous web and the rayon fiber in the second fibrous web are intimately entangled with each other at the boundary of the layers, and a fiber fleece in which each constituent fiber in each layer is intimately entangled with each other. Was obtained. This fiber fleece was introduced into boiling water to crimp the composite fiber in the fiber fleece. Then, it was dried in a dryer at 100 ° C. to obtain a grain-like nonwoven fabric having a basis weight of 50 g / m 2 . This grain-like nonwoven fabric had a large number of randomly formed irregularities on only one surface of the nonwoven fabric, and the height of these irregularities was higher than that of Example 1. The physical properties of this grain-like nonwoven fabric are as follows: warp strength 3.5 kg / 5 cm width, weft strength 15 kg /
The width was 5 cm, the weft elongation was 105%, the weft elongation was 58%, and the flexibility was good, the touch was good, and the texture was good. Example 3 Using a 100% by weight latent heat-shrinkable acrylic fiber having a fiber length of 38 mm, a fiber diameter of 1.5 denier, and a basis weight of 20 g / m 2 by the card method.
Was produced. Two fiber webs having a basis weight of 20 g / m 2 were prepared by the card method using 100% by weight of non-shrinkable rayon fiber having a fiber length of 64 mm and a fiber diameter of 1.5 denier. The intermediate fibrous web was sandwiched between the two fibrous webs to form a fibrous web having a three-layer structure. This fiber web having a three-layer structure was placed on a flat plate, and a fiber fleece was prepared in the same manner as in Example 1. As a result, the acrylic fibers in the intermediate fibrous web are intimately entangled with each other at the boundary between the rayon fibers in the fibrous web on the front and back sides and the layers, and a fiber fleece in which the constituent fibers in each layer are intimately entangled with each other is obtained. Was given. This fiber fleece was introduced into hot air at 150 ° C. to crimp the acrylic fiber in the fiber fleece to obtain a grain-like nonwoven fabric having a basis weight of 60 g / m 2 . This grain-like nonwoven fabric had a large number of randomly formed irregularities on both surfaces of the nonwoven fabric, and the height of these irregularities was the same as that of Example 2. The physical properties of this grain-like nonwoven fabric are as follows: warp strength 5.5 kg / 5 cm width, weft strength 16.5 kg / 5 cm width,
The warp elongation was 115%, the weft elongation was 65%, and the flexibility was good, the touch was good, and the texture was good. As described above, in the grain-like nonwoven fabric obtained by the method according to the present invention, the constituent fibers are not bound to each other by the binder, but are tightly entangled by the high-pressure columnar water flow. In addition to being excellent in flexibility, the strength (tensile strength) is high, and therefore the shape stability is extremely excellent. Further, since many random irregularities are mainly formed on the surface of the rayon fiber, the texture is good and the texture is excellent. Therefore, the grain-finished nonwoven fabric obtained by the method according to the present invention can be used in various applications not used in conventional nonwoven fabrics, such as towels and underwear, and is extremely useful industrially.
Claims (1)
〜95重量％とよりなり、各繊維相互間が未結合状態の繊
維ウェブを準備し、該繊維ウェブに高圧柱状水流を施す
ことによって、該潜在感熱収縮性繊維と該レーヨン繊維
相互間を緊密に絡合せしめた後、熱を付与して、該潜在
感熱収縮性繊維に収縮を発現させることによって、該レ
ーヨン繊維に撓みを生じさせ、不織布表面に無作為な多
数の凹凸を形成させることを特徴とする、結合剤を含有
しないしぼ調不織布の製造方法。(57) [Claims] Latent heat shrinkable fiber 5 to 50% by weight and rayon fiber 50
% To 95% by weight of the fibers, each fiber web being unbonded between the fibers is prepared, and the fiber web is subjected to a high-pressure columnar water flow to closely close the latent heat-shrinkable fibers and the rayon fibers. After being entangled, heat is applied to cause shrinkage of the latent heat-shrinkable fiber, thereby causing the rayon fiber to bend and forming a large number of irregularities on the surface of the nonwoven fabric. And a method for producing a grain-like nonwoven fabric containing no binder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62140531A JP2670673B2 (en) | 1987-06-04 | 1987-06-04 | Method for producing grain-like nonwoven fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62140531A JP2670673B2 (en) | 1987-06-04 | 1987-06-04 | Method for producing grain-like nonwoven fabric |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63309657A JPS63309657A (en) | 1988-12-16 |
| JP2670673B2 true JP2670673B2 (en) | 1997-10-29 |
Family
ID=15270834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62140531A Expired - Lifetime JP2670673B2 (en) | 1987-06-04 | 1987-06-04 | Method for producing grain-like nonwoven fabric |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2670673B2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07122212B2 (en) * | 1988-12-13 | 1995-12-25 | ユニ・チャーム株式会社 | Bulky nonwoven fabric and method for producing the same |
| JPH0314121U (en) * | 1989-06-26 | 1991-02-13 | ||
| JP2986689B2 (en) * | 1994-08-29 | 1999-12-06 | ユニ・チャーム株式会社 | Manufacturing method of nonwoven wiper |
| JPH10251954A (en) * | 1997-03-07 | 1998-09-22 | Uni Charm Corp | Wiping sheet and its production |
| DE60131716T2 (en) | 2000-09-22 | 2008-11-06 | Kao Corp. | Upper layer for absorbent article |
| JP3609361B2 (en) | 2000-10-12 | 2005-01-12 | 花王株式会社 | Three-dimensional sheet material |
| DE60225383T2 (en) | 2001-08-10 | 2008-06-12 | Kao Corp. | Upper layer for absorbent article |
| JP3611838B2 (en) | 2001-12-28 | 2005-01-19 | 花王株式会社 | Top sheet for absorbent articles |
| JP3625804B2 (en) | 2002-02-25 | 2005-03-02 | 花王株式会社 | Three-dimensional sheet material |
| JP4535984B2 (en) * | 2005-11-08 | 2010-09-01 | 花王株式会社 | Method for manufacturing concavo-convex structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5953388B2 (en) * | 1976-11-05 | 1984-12-25 | 三菱レイヨン株式会社 | Method for manufacturing nonwoven sheet |
| JPS5742952A (en) * | 1980-08-29 | 1982-03-10 | Teijin Ltd | Production of nonwoven fabric |
| JPH0819611B2 (en) * | 1986-07-19 | 1996-02-28 | 日本バイリーン株式会社 | High-fitting non-woven fabric and its manufacturing method |
-
1987
- 1987-06-04 JP JP62140531A patent/JP2670673B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63309657A (en) | 1988-12-16 |
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