JPS622058B2 - - Google Patents
Info
- Publication number
- JPS622058B2 JPS622058B2 JP53042516A JP4251678A JPS622058B2 JP S622058 B2 JPS622058 B2 JP S622058B2 JP 53042516 A JP53042516 A JP 53042516A JP 4251678 A JP4251678 A JP 4251678A JP S622058 B2 JPS622058 B2 JP S622058B2
- Authority
- JP
- Japan
- Prior art keywords
- fibers
- nonwoven fabric
- composite spun
- fiber
- hydrophilic
- 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
Links
- 239000000835 fiber Substances 0.000 claims description 74
- 239000004745 nonwoven fabric Substances 0.000 claims description 34
- 239000002131 composite material Substances 0.000 claims description 28
- 238000010438 heat treatment Methods 0.000 claims description 19
- -1 polyethylene Polymers 0.000 claims description 15
- 229920000642 polymer Polymers 0.000 claims description 13
- 238000002844 melting Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 10
- 239000004698 Polyethylene Substances 0.000 claims description 9
- 229920002978 Vinylon Polymers 0.000 claims description 9
- 229920000573 polyethylene Polymers 0.000 claims description 9
- 229920000297 Rayon Polymers 0.000 claims description 8
- 239000002964 rayon Substances 0.000 claims description 8
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 description 6
- 229920001155 polypropylene Polymers 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229920000728 polyester Polymers 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Landscapes
- Nonwoven Fabrics (AREA)
Description
【発明の詳細な説明】
本発明は強さ、柔軟性および吸液性を兼備しか
つ毛羽素抜けの起らない不織布およびその製造に
関する。さらに詳しくは、主として複合紡糸繊維
同志が接着して形成したネツトワークと主として
親水性繊維が接着して形成したネツトワークが相
互に交絡して一体化した構造の不織布であり、そ
の製法としては親水性繊維、複合紡糸繊維および
熱水可溶性繊維からなるウエブに乾熱処理と湿潤
熱処理を施すことからなるものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a nonwoven fabric that has strength, flexibility, and liquid absorbency and does not shed fluff, and its production. More specifically, it is a nonwoven fabric with a structure in which a network formed mainly by adhering composite spun fibers and a network formed mainly by adhering hydrophilic fibers are intertwined and integrated. This method consists of subjecting a web made of polyester fibers, composite spun fibers, and hot water soluble fibers to dry heat treatment and wet heat treatment.
従来から衛生材料用の不織布としては、強さ、
柔軟性、バルキー性、収縮性、ヒートシール性、
毛羽抜けのないことなどの要求性能があることが
知られている。これまでこれらの要求性能を同時
に解決した不織布はなくその開発が望まれてい
る。 Traditionally, nonwoven fabrics for sanitary materials have been used for strength,
Flexibility, bulkiness, shrinkability, heat sealability,
It is known that it has required performance such as no shedding. Until now, there has been no nonwoven fabric that simultaneously satisfies these performance requirements, and the development of one is desired.
本来、不織布の強さと柔軟性および毛羽抜け性
は逆相関になりやすい特性であり、これらのバラ
ンスを計ることはむずかしいとされていた。とく
に吸液性、ヒートシール性を保有した上にそれら
の特性をバランスさせる点がむずかしかつた。 Originally, the strength, flexibility, and fluffing properties of nonwoven fabrics tend to be inversely correlated, and it has been thought that it is difficult to balance them. In particular, it was difficult to balance these properties while maintaining liquid absorbency and heat sealability.
本発明は、低融点ポリマーを１成分とする複合
紡糸繊維および親水性繊維を含む少なくとも２種
類の繊維からなる不織布であつて、該不織布内に
おいて複合紡糸繊維の低融点ポリマーの溶融接着
してなるネツトワークと、親水性繊維が接着して
形成されたネツトワークが相互に交絡した相互貫
入構造の不織布としたことによつて、強さと柔軟
性のバランスおよび毛羽抜け防止に成功したので
ある。すなわち、低融点ポリマーを１成分とする
複合紡糸繊維、親水性繊維を含む少なくとも２種
類の繊維からなる不織布を乾熱処理と湿熱処理を
組合わせて行い、該不織布内において複合紡糸繊
維の低融点ポリマーの溶融接着してなるネツトワ
ークと、親水性繊維が接着して形成されたネツト
ワークが相互に交絡した相互貫入構造とする不織
布の製造法である。かかる複合紡糸繊維として
は、芯鞘繊維でもサイドバイサイド型繊維でも差
し支えないが、一成分はポリエチレン系ポリマー
である方が乾熱処理をする上で好ましい。他の成
分はポリエチレン系ポリマーよりも高融点で熱可
塑性であれば特にその組成に限定されないが、ポ
リエステル、ポリプロピレン、ナイロンなど複合
紡糸性があることが要求される。そして、芯鞘型
や海島型にする場合はポリエチレン系ポリマーが
鞘が海となり、他の成分が芯や島になるように複
合紡糸して製造する。また、親水性繊維としては
レイヨン、ビニロン、ナイロン、木綿などのよう
に熱水可溶性繊維によつて接着可能なものはいず
れでも差し支えないが、熱水可溶性繊維としてビ
ニロンを使用するときには、親水性繊維としてレ
イヨンやビニロンが好ましい。 The present invention is a nonwoven fabric made of at least two types of fibers including a composite spun fiber containing a low-melting point polymer as one component and a hydrophilic fiber, wherein the low-melting point polymer of the composite spun fiber is melt-bonded within the nonwoven fabric. By creating a nonwoven fabric with an interpenetrating structure in which the network and the network formed by adhering hydrophilic fibers are intertwined with each other, they succeeded in achieving a balance between strength and flexibility and preventing fluffing. That is, a nonwoven fabric consisting of at least two types of fibers including a composite spun fiber containing a low melting point polymer as one component and a hydrophilic fiber is subjected to a combination of dry heat treatment and moist heat treatment, and the low melting point polymer of the composite spun fiber is treated in the nonwoven fabric. This is a method for producing a nonwoven fabric having an interpenetrating structure in which a network formed by melt-bonding and a network formed by adhering hydrophilic fibers are intertwined with each other. Such composite spun fibers may be core-sheath fibers or side-by-side type fibers, but it is preferable for one component to be a polyethylene polymer for dry heat treatment. The composition of the other components is not particularly limited as long as they have a higher melting point than the polyethylene polymer and are thermoplastic, but they are required to have composite spinnability such as polyester, polypropylene, or nylon. When making a core-sheath type or a sea-island type, the polyethylene polymer is manufactured by composite spinning so that the sheath becomes the sea, and the other components form the core or islands. In addition, any hydrophilic fibers that can be bonded with hot water soluble fibers, such as rayon, vinylon, nylon, and cotton, can be used, but when vinylon is used as the hot water soluble fiber, hydrophilic fibers Rayon and vinylon are preferable.
本発明においては、複合紡糸繊維と親水性繊維
ならびに熱水可溶性繊維からなるウエブを、複合
紡糸繊維の一成分の融点以上で他成分の融点以下
の温度で乾熱処理をし複合紡糸繊維が融着してネ
ツトワークが形成される。つぎに、このウエブを
湿潤させた状態で熱処理することによつて熱水可
溶性繊維が膨潤し、さらに溶解することによつて
親水性繊維に対して充分な接着が生じそれによつ
てネツトワークが形成される。ここで、乾熱処理
と湿熱処理の順序はどちらが先であつてもよい。
そして、両処理によつて二種の相互に交絡したネ
ツトワークが形成され、不織布の強さと柔軟性の
バランスがとれさらに毛羽抜けのない新規な不織
布が得られる。 In the present invention, a web consisting of composite spun fibers, hydrophilic fibers, and hot water soluble fibers is subjected to dry heat treatment at a temperature higher than the melting point of one component of the composite spun fibers and lower than the melting point of the other components, so that the composite spun fibers are fused. A network is formed. Next, by heat-treating this web in a wet state, the hot water-soluble fibers swell and further dissolve, resulting in sufficient adhesion to the hydrophilic fibers, thereby forming a network. be done. Here, the dry heat treatment and the wet heat treatment may be performed in either order.
By both treatments, two kinds of mutually entangled networks are formed, and a novel nonwoven fabric that has a good balance between strength and flexibility and does not shed fuzz can be obtained.
二種のネツトワークが交絡し相互に貫入してい
ることは、本発明不織布のネツトワークの一方す
なわち複合紡糸繊維か親水性繊維を溶解除去すれ
ば一方のみのネツトワークが残ることによつて確
められる。本発明不織布の複合紡糸繊維と親水性
繊維のネツトワークのループは、相互貫入してい
るために一方を溶解しないと取り出すことはでき
なく、かかる構造をしているため強さと柔軟性の
バランスが取れ、しかも複合紡糸繊維や親水性繊
維の毛羽の素抜けが起らないのである。 The fact that the two types of networks intertwine and interpenetrate is confirmed by the fact that when one of the networks of the nonwoven fabric of the present invention, that is, the composite spun fibers or the hydrophilic fibers, is dissolved and removed, only one network remains. I can't stand it. The loops of the network of composite spun fibers and hydrophilic fibers in the nonwoven fabric of the present invention interpenetrate and cannot be taken out without dissolving one of them, and this structure provides a balance between strength and flexibility. Moreover, the fuzz of composite spun fibers and hydrophilic fibers does not come off easily.
本発明方法においては乾熱処理によつて熱可塑
性の複合紡糸繊維の一部を融解せしめるが、一成
分がポリエチレン系ポリマーである場合には処理
温度は90〜160℃が好ましく、他成分であるポリ
プロピレン、ポリエステルなどを融解させないで
強力を有するネツトワークを形成せしめる必要が
ある。この際、親水性繊維も複合紡糸繊維と接合
するが、複合紡糸繊維同志の接着力に比べると弱
い。 In the method of the present invention, a part of the thermoplastic composite spun fiber is melted by dry heat treatment, but when one component is a polyethylene polymer, the treatment temperature is preferably 90 to 160 °C, and the other component is polypropylene. It is necessary to form a strong network without melting polyester or the like. At this time, the hydrophilic fibers are also bonded to the composite spun fibers, but the adhesive force is weak compared to the adhesive force between composite spun fibers.
湿潤状態からの熱処理によつては熱水可溶性繊
維による接着が起るが、その接着効果は親水性繊
維によつて主として発揮されネツトワークが形成
される。ビニロンの場合には50％〜500％、好ま
しくは100％〜500％含水した状態で70〜150℃で
熱処理して接着せしめる。熱水可溶性繊維の一部
は溶解して複合紡糸繊維の接着も起るが、親水性
繊維同志の接着に比べると接合力は弱い。 Heat treatment from a wet state causes adhesion by hot water soluble fibers, but the adhesion effect is mainly exerted by hydrophilic fibers and a network is formed. In the case of vinylon, it is bonded by heat treatment at 70 to 150°C in a state where it contains 50% to 500% water, preferably 100% to 500%. Although some of the hot water soluble fibers dissolve and adhesion of composite spun fibers occurs, the bonding force is weaker than adhesion between hydrophilic fibers.
本発明のネツトワークの交絡した相互貫入構造
の不織布およびその製造法において、親水性繊
維、複合紡糸繊維および熱水可溶性繊維の割合は
衛生材料の用途によつて適宜変える必要がある
が、熱水可溶性繊維については10％以下が適当で
ある。繊維長やデニールについても特に限定する
ものでなく、通常に用いられている短繊維を使用
すればよい。また、ウエブ全体が同様な繊維組成
でなくても組成分布があつた方が好ましい場合も
あり、不織布の一部が本発明構造であれば衛生材
料用として好ましい。 In the nonwoven fabric having an intertwined interpenetrating structure of the network of the present invention and the method for producing the same, the proportions of hydrophilic fibers, composite spun fibers, and hot water soluble fibers need to be changed as appropriate depending on the use of the sanitary material. For soluble fibers, 10% or less is appropriate. There are no particular limitations on fiber length or denier, and commonly used short fibers may be used. Further, even if the entire web does not have the same fiber composition, it may be preferable to have a uniform composition distribution, and if part of the nonwoven fabric has the structure of the present invention, it is preferable for sanitary materials.
以下に実施例で本発明を具体的に説明する。 The present invention will be specifically explained below with reference to Examples.
実施例 １
1.5dr、40mmのレイヨンを65％、3dr、51mmのポ
リエチレンとポリプロピレンの偏心芯鞘繊維を30
％、1dr、38mmのビニロンを５％混繊し、19.0
ｇ／m2のカードウエブを作製した。145℃で30秒
間ネツトにはさんだ状態で乾熱処理をし、その後
約200％の水分を付着させたのちに110〜150℃で
湿熱処理をした。タテ強力が0.25Kg／cmで厚さ
0.25mmで表面毛羽が少く手羽抜けのない柔かい不
織布を得た。レイヨンの混繊比が多く水溶液の吸
液性が良好でしかも複合紡糸繊維によつてべとつ
き感がなくヒートシールも可能な衛生材料用とし
て好適な不織布である。これは、未融解のポリプ
ロピレンのネツトワークとレイヨンのネツトワー
クが相互貫入した構造であつた。Example 1 1.5 dr, 40 mm rayon 65%, 3 dr, 51 mm polyethylene and polypropylene eccentric core-sheath fiber 30%
%, 1dr, 5% blend of 38mm vinylon, 19.0
A card web of g/m 2 was produced. Dry heat treatment was performed at 145°C for 30 seconds while sandwiched between nets, and then approximately 200% moisture was attached, followed by wet heat treatment at 110 to 150°C. Vertical strength is 0.25Kg/cm and thickness
A soft nonwoven fabric with a thickness of 0.25 mm and little surface fuzz and no wing shedding was obtained. This nonwoven fabric has a high blending ratio of rayon, has good absorption properties for aqueous solutions, and is suitable for sanitary materials because it does not have a sticky feeling due to the composite spun fibers and can be heat-sealed. This was a structure in which a network of unmelted polypropylene and a network of rayon interpenetrated.
比較例 １
実施例１の3dr、51mmのポリエチレンとポリプ
ロピレンの偏心芯鞘繊維を用いて目付19.0ｇ／m2
のカードウエブを作り、145℃で30秒間ネツトに
はさんだ状態で乾熱処理して得た不織布は、全体
が溶融したポリエチレンで固められたプラスチツ
クシート状物となつてしまい、不織布の形状では
なくなつてしまつた。Comparative Example 1 Using the 3dr, 51 mm eccentric core-sheath fibers of polyethylene and polypropylene of Example 1, the fabric weight was 19.0 g/m 2
The nonwoven fabric obtained by making a card web and dry-heating it at 145°C for 30 seconds while being sandwiched between nets becomes a plastic sheet solidified entirely with molten polyethylene, and no longer has the shape of a nonwoven fabric. It was.
比較例 ２
実施例１の1.5dr、40mmのレイヨン85％、1dr、
38mmのビニロンを15％混繊し、19.0ｇ／m2のカー
ドウエブを作り、ネツトにはさんだ状態で約200
％の水分を付着させたのち、110〜150℃で湿熱処
理をした。得られた不織布は溶解したビニロンで
固定されて紙様の風合いのやせた感じのものにな
つてしまい、表面の毛羽立ちも十分抑制できない
ばかりか、折れ目が目立つものであつた。Comparative example 2 1.5 dr of Example 1, 40 mm rayon 85%, 1 dr,
A card web of 19.0g/ m2 is made by mixing 15% of 38mm vinylon, and when it is sandwiched between nets, it has a weight of about 200%.
% moisture was applied, and then subjected to moist heat treatment at 110 to 150°C. The obtained nonwoven fabric was fixed with the molten vinylon, giving it a paper-like texture and a thin texture, and not only was it not possible to sufficiently suppress fuzz on the surface, but the creases were noticeable.
実施例 ２
実施例１と同じ組成のウエブと、レイヨン70
％、ポリエチレンとポリプロピレンの複合紡糸繊
維30％の混繊ウエブを積層し約17ｇ／m2のウエブ
を作り実施例１と同様な処理をした。その結果、
表面が本発明構造を有する不織布が得られた。こ
れを表面として衛生材料を製造し、柔軟性と表面
毛羽の素抜けの起りにくい商品を提供できた。Example 2 Web with the same composition as Example 1 and Rayon 70
A mixed fiber web of 30% composite spun fibers of polyethylene and polypropylene was laminated to form a web of approximately 17 g/m 2 and treated in the same manner as in Example 1. the result,
A nonwoven fabric having a surface having the structure of the present invention was obtained. Using this as a surface, we were able to manufacture sanitary materials and provide products that were flexible and resistant to surface fuzz.
Claims (1)
らなる複合紡糸繊維および親水性繊維を含む少な
くとも２種類の繊維からなる不織布であつて、該
不織布内において複合紡糸繊維の低融点ポリマー
の溶融接着してなるネツトワークと、親水性繊維
が接着して形成されたネツトワークが相互に交絡
した相互貫入構造の不織布。 ２ 前項において、複合紡糸繊維が自己接着して
なるネツトワークと、親水性繊維が熱水可溶性繊
維で接着して形成されたネツトワークが相互に交
絡した相互貫入構造の不織布。 ３ 融点の異なる少なくとも２種類のポリマーか
らなる複合紡糸繊維、親水性繊維を含む少なくと
も２種類の繊維からなる不織布を乾熱処理と湿熱
処理を組合わせて行い、該不織布内において複合
紡糸繊維の低融点ポリマーの溶融接着してなるネ
ツトワークと、親水性繊維が接着して形成された
ネツトワークが相互に交絡した相互貫入構造とす
ることを特徴とする不織布の製造法。 ４ 特許請求の範囲３において親水性繊維が熱水
可溶性繊維を混繊していることを特徴とする不織
布の製造法。 ５ 特許請求の範囲３または４において、乾熱処
理を90〜160℃、湿熱処理を70〜150℃で行なうこ
とを特徴とする不織布の製造法。 ６ 特許請求の範囲３〜５のいずれかにおいて、
親水性繊維がレイヨン、ビニロンまたはナイロン
であることを特徴とする不織布の製造法。 ７ 特許請求の範囲３〜６のいずれかにおいて、
複合紡糸繊維の一成分がポリエチレン系ポリマー
であることを特徴とする不織布の製造法。 ８ 特許請求の範囲３〜７のいずれかにおいて、
熱水可溶性繊維がビニロンであることを特徴とす
る不織布の製造法。[Scope of Claims] 1. A nonwoven fabric consisting of at least two types of fibers including a composite spun fiber and a hydrophilic fiber comprising at least two types of polymers having different melting points, wherein a low melting point polymer of the composite spun fiber is contained in the nonwoven fabric. A nonwoven fabric with an interpenetrating structure in which a network formed by melt bonding and a network formed by adhering hydrophilic fibers are intertwined with each other. 2. In the preceding item, a nonwoven fabric having an interpenetrating structure in which a network formed by self-adhering composite spun fibers and a network formed by adhering hydrophilic fibers with hot water soluble fibers are intertwined with each other. 3 Composite spun fibers made of at least two types of polymers with different melting points, nonwoven fabrics made of at least two types of fibers including hydrophilic fibers, are subjected to a combination of dry heat treatment and moist heat treatment, and the low melting point of the composite spun fibers is reduced within the nonwoven fabric. A method for producing a nonwoven fabric characterized by forming an interpenetrating structure in which a network formed by melt-adhering polymers and a network formed by adhering hydrophilic fibers are intertwined with each other. 4. A method for producing a nonwoven fabric according to claim 3, characterized in that the hydrophilic fibers are mixed with hot water soluble fibers. 5. The method for producing a nonwoven fabric according to claim 3 or 4, characterized in that the dry heat treatment is carried out at 90 to 160°C and the wet heat treatment is carried out at 70 to 150°C. 6 In any of claims 3 to 5,
A method for producing a nonwoven fabric, characterized in that the hydrophilic fiber is rayon, vinylon, or nylon. 7 In any of claims 3 to 6,
A method for producing a nonwoven fabric, characterized in that one component of the composite spun fiber is a polyethylene polymer. 8 In any of claims 3 to 7,
A method for producing a nonwoven fabric, characterized in that the hot water soluble fiber is vinylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4251678A JPS54134181A (en) | 1978-04-10 | 1978-04-10 | Nonwoven fabric and production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4251678A JPS54134181A (en) | 1978-04-10 | 1978-04-10 | Nonwoven fabric and production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54134181A JPS54134181A (en) | 1979-10-18 |
| JPS622058B2 true JPS622058B2 (en) | 1987-01-17 |
Family
ID=12638228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4251678A Granted JPS54134181A (en) | 1978-04-10 | 1978-04-10 | Nonwoven fabric and production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54134181A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0321720U (en) * | 1989-07-11 | 1991-03-05 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4650479A (en) * | 1984-09-04 | 1987-03-17 | Minnesota Mining And Manufacturing Company | Sorbent sheet product |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5285575A (en) * | 1976-01-09 | 1977-07-15 | Mitsubishi Rayon Co | Manufacture of elastic unwoven fabric |
| JPS5285576A (en) * | 1976-01-09 | 1977-07-15 | Mitsubishi Rayon Co | Manufacture of sheet structure |
-
1978
- 1978-04-10 JP JP4251678A patent/JPS54134181A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5285575A (en) * | 1976-01-09 | 1977-07-15 | Mitsubishi Rayon Co | Manufacture of elastic unwoven fabric |
| JPS5285576A (en) * | 1976-01-09 | 1977-07-15 | Mitsubishi Rayon Co | Manufacture of sheet structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0321720U (en) * | 1989-07-11 | 1991-03-05 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54134181A (en) | 1979-10-18 |
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