JPH0144822B2 - - Google Patents
Info
- Publication number
- JPH0144822B2 JPH0144822B2 JP56141215A JP14121581A JPH0144822B2 JP H0144822 B2 JPH0144822 B2 JP H0144822B2 JP 56141215 A JP56141215 A JP 56141215A JP 14121581 A JP14121581 A JP 14121581A JP H0144822 B2 JPH0144822 B2 JP H0144822B2
- Authority
- JP
- Japan
- Prior art keywords
- fibers
- layer
- nonwoven fabric
- present
- web
- 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 51
- 239000004745 nonwoven fabric Substances 0.000 claims description 29
- 238000002844 melting Methods 0.000 claims description 13
- 230000008018 melting Effects 0.000 claims description 13
- 230000004927 fusion Effects 0.000 claims description 11
- 239000000470 constituent Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 36
- 238000000034 method Methods 0.000 description 14
- 239000004744 fabric Substances 0.000 description 6
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 5
- 239000006260 foam Substances 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 238000009987 spinning Methods 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920002292 Nylon 6 Polymers 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002649 leather substitute Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Description
本発明は、特に内装材として極めて有用な、新
規な不織布に関するものである。
自動車等の内装材としては、従来、染色又は印
刷を施こされた織物やポリ塩化ビニルフイルム等
に硬質ウレタンフオームを接着したものが用いら
れてきた。この内装材は、そのウレタンフオーム
の露出面に例えばヒートシールフイルム等を貼合
わせたものを加熱操作により、内装すべき本体に
被覆して用いられる。内装材片面の織物やポリ塩
化ビニルフイルム等は、染色、印刷により美観を
与え、又は触度の向上を図るため、ウレタンフオ
ームはクツシヨン性を付与するためのものであ
る。
しかし、上記内装材は、織物又はポリ塩化ビニ
ルフイルムとウレタンフオームとの接着操作が必
要であり、又使用条件によつては剥離が起こる等
の問題があり、更にウレタンフオームの為被内装
材の屈曲部への内装加工に困難が伴ない、又嵩高
いため取扱いが困難である等の問題がある。
本発明は、これら既存の内装材の問題点を解決
した新規な内装材としての不織布を提供するもの
である。
即ち、本発明は、Ａ、Ｂの２層からなる不織布
で、Ａ層はその表面に熱圧着による微小な凹部が
一面に散在し、その繊維同士が構成繊維の融点以
下の温度と圧力で接着及び／又は融着により相互
に結合されており、Ｂ層は繊維同士が三次元的に
相互に交絡してマツト状を呈しており、Ａ層の繊
維の一部はＢ層の繊維と交絡し、Ｂ層の繊維の一
部はＡ層に入りこんで該接着及び／又は融着によ
りＡ層の繊維と結合してなることを特徴とする不
織布に関するものである。
以下に本発明を詳細に説明する。
本発明の不織布におけるＡ層は、100％熱可塑
性繊維からなることが好ましく、繊度は0.5〜15d
のものが用い得る。繊維同士は相互に固定され紙
のようであり、繊維間の接着又は融着が認められ
る。繊維を接着、融着させる方法として、２種以
上の繊維を混合し、あるいは２種以上の融点の異
なる成分からなる複合繊維等を用い、その融点差
を利用し、低融点側の成分の融点以上の温度で接
着、融着を行う方法により、高融点成分（繊維）
を傷めずに残し、強度を保持させるものがある
が、全体的に糊付けした布状になつて風合面では
好ましいものとは云えない。これに対し、単成分
繊維あるいは複合繊維であつても、繊維の融点以
下の温度で、圧力を加えることで、接着、融着を
行う方法がある。この方法では部分的に熱圧着さ
せることで圧着点以外では、繊維の融着も起こら
ず、形態が維持され、繊維自体の柔軟さを持ち、
強度面でも有効なものとなる。当然この方法で融
点以上の温度では圧着点以外でも繊維の溶融が起
こり、繊維の形態を残さなくなり、樹脂化した状
態で、硬く、強度低下も著しく、装置への付着
（融着）も起こり易い。
本発明の不織布は、後述の実施例で明らかなよ
うに、繊維の融点以下の温度と圧力で部分的な熱
圧着により接着及び／又は融着させたものが、風
合、強度の点から好ましい。
なお、このような熱圧着法での接着、融着は、
詳細には明らかではないが、ガーデイング時に付
与する油剤等の影響もあり、通常のカードウエブ
より、全く油剤付与もないスパンボンド法による
ウエブの法がより効果が現れ易く、その接着、融
着効果を不織布の表面効果に生かす上で片面をス
パンボンド法によるウエブとするのが好ましいと
云える。目付は30ｇ／m2以上、50〜150ｇ／m2、
厚みは0.2〜0.6mm程度が用いられる。表面には
2000〜6000個／10×10cm角の密度に熱圧着に基づ
く小凹部が散在する。凹部の深さは0.2〜1.0mm
で、凹部はＢ層に迄及んでいても差支えない。凹
部１個当りの面積は、１mm2以下、好ましくは0.8
mm2以下、更に好ましくは0.03〜0.10mm2である。こ
のような表面は平滑で毛羽の発生は防止されてお
り、印刷も容易であり、内装材表面として長期間
の使用に耐える。
Ｂ層は、天然、再生、半合成、合成の全繊維が
使用可能であり、繊度は0.5〜30dが用いられる。
Ａ層の繊維より太いものを用いる方が好ましい。
繊維同士は三次元的に交絡してマツト状をなし、
繊維間の接着又は融着はない。目付は50〜200
ｇ／m2、好ましくは50〜150ｇ／m2、厚みは0.5〜
1.5mmで良い。Ｂ層は良好なクツシヨン性を具備
している。
Ａ層繊維の一部はＢ層の繊維と交絡し、Ｂ層の
繊維の一部はＡ層に入りこんで接着及び／又は融
着によりＡ層の繊維と結合している。
次に本発明の不織布の代表的な製造方法につい
て述べる。先ずスパンボンド方式にて長繊維ウエ
ブを取り出し、２本の熱ロールを用いて繊維同士
が部分的又は全面的に融着しない程度に圧着して
本発明のＡ層材料を製造する。このＡ層材料は繊
維同士が強固に結合されない為に後述のニードル
パンチにより交絡し易い構造を有している。
次いで本発明のＢ層材料としてカード方式にて
短繊維ウエブを取り出し、Ａ層材料に積層して、
その重合面において両材料が互に交絡するように
ニードルパンチを行なう。
かくして得られた接合材料をＡ層の面を凸ロー
ル側とし、平滑ロールとの間を通して熱圧着しＡ
層の表面にのみ熱圧着による凹部を設けて本発明
の不織布を製造する。
次に実施例を示す。
実施例 １
ポリエチレンテレフタレートチツプを紡糸温度
290℃で孔径0.25mmのノズルを有する短形紡口よ
り紡出して連続フイラメントを形成し、これらの
フイラメントを矩形状エアサツカーにより約5000
ｍ／minの速度で牽引し移動する金網上に集積し
て単糸1.3デニールの目付70ｇ／m2のウエブをと
り出した。このウエブを凸部形状が面積0.25mm2、
高さ0.33mm、その散在密度が7000個／10×10（cm2）
を有する凸ロールと平滑ロールの間を通して210
℃で線圧15Kg／cmで熱圧着した。
このようにして得られた本発明のＡ層材料は嵩
高でソフトで繊維同士が外力により容易に動き、
しかも巻き取り等の作業においても何ら支障のな
いものであつた。
次いで、本発明のＢ層材料として、ポリエステ
ル繊維（3.0デニール、長さ102mm）を用いて目付
100ｇ／m2のカードウエブを取り出してＡ層材料
の上に積層する。
この積層材料をニードルパンチ方式により、Ｂ
層材料面が針深度15mmで針本数100本／cm2、Ａ層
材料面は針深度９mm、針本数100本／cm2の条件で
交絡させた。このようにして得られた物は、Ａ層
材料とＢ層材料がその接合面において交絡された
ものであつた。
更に、この物を凸部形状が面積0.05mm2、深さ
0.90mm、その散在密度4000／10×10（cm2）を有す
る凸ロールと平滑ロールの間を0.05mmとし、凸ロ
ールの温度221℃、平滑ロール温度113℃で通過さ
せて熱圧着して不織布を製造した。
このようにして得られた不織布は、Ａ層がスパ
ンボンド方式よりなり更に熱圧着されていること
から表面が平滑で耐摩耗性がすぐれており、又Ｂ
層がニードルパンチ方式よりなる為にソフトな風
合と好ましい嵩高性を持つものであつた。
即ち、本発明の不織布は、スパンボンド方式に
よる不織布とニードルパンチ方式による不織布の
各々の利点を有効に活かして互の欠点を補なうも
のである。しかして本発明の不織布は片方の面が
平滑にして耐摩耗性がすぐれ、プリント又はコー
テング等の表面加工性が良く、かつソフトにして
嵩高であり、かつ寸法安定性も良く、染色加工等
にも耐えるものである。
従つて、本発明の不織布の用途は広く、カバン
材料レザー及び合皮ベース、各種芯材、カベ材、
イス張り材、車輛内装材並びにネクタイ芯等にそ
の活用が期待される。
次に本発明の不織布の物性を示す。
The present invention relates to a novel nonwoven fabric that is extremely useful particularly as an interior material. BACKGROUND ART Conventionally, materials in which hard urethane foam is bonded to dyed or printed fabrics, polyvinyl chloride films, etc. have been used as interior materials for automobiles and the like. This interior material is used by coating the main body to be interiorized by applying a heat seal film or the like to the exposed surface of the urethane foam by heating the material. The fabric or polyvinyl chloride film on one side of the interior material is dyed or printed to give it an aesthetic appearance or to improve its feel, and the urethane foam is used to give it cushioning properties. However, the above-mentioned interior materials require adhesion between the fabric or polyvinyl chloride film and the urethane foam, and there are problems such as peeling depending on the usage conditions. There are problems in that it is difficult to process the interior of the bent part, and it is difficult to handle because it is bulky. The present invention provides a nonwoven fabric as a novel interior material that solves the problems of these existing interior materials. That is, the present invention is a nonwoven fabric consisting of two layers, A and B, in which the A layer has minute recesses scattered over its surface by thermocompression bonding, and the fibers are bonded to each other at a temperature and pressure below the melting point of the constituent fibers. and/or are mutually bonded by fusion, and the fibers in the B layer are three-dimensionally intertwined with each other to form a mat shape, and some of the fibers in the A layer are intertwined with the fibers in the B layer. , relates to a nonwoven fabric characterized in that a part of the fibers of layer B enters layer A and is bonded to the fibers of layer A by the adhesion and/or fusion. The present invention will be explained in detail below. The A layer in the nonwoven fabric of the present invention is preferably made of 100% thermoplastic fibers, and has a fineness of 0.5 to 15 d.
can be used. The fibers are fixed to each other like paper, and adhesion or fusion between the fibers is observed. As a method of adhering and fusing fibers, two or more types of fibers are mixed, or composite fibers made of two or more types of components with different melting points are used, and the melting point difference of the component on the lower melting point side is used to make use of the difference in melting point. High melting point components (fibers) are bonded and fused at temperatures above
There are some that leave the material undamaged and maintain strength, but the entire material becomes like a pasted cloth, which is not desirable in terms of texture. On the other hand, there is a method of adhering or fusing monocomponent fibers or composite fibers by applying pressure at a temperature below the melting point of the fibers. In this method, the fibers are partially bonded by heat and compression, so that the fibers do not fuse together except at the bonding point, and the shape is maintained and the fiber itself maintains its flexibility.
It is also effective in terms of strength. Naturally, with this method, at temperatures above the melting point, the fibers will melt at temperatures other than the compression point, leaving no fiber form behind, making it hard, with a significant decrease in strength, and easily adhering to equipment (fusion). . As will be clear from the examples below, the nonwoven fabric of the present invention is preferably one that is bonded and/or fused by partial thermocompression bonding at a temperature and pressure below the melting point of the fibers, from the viewpoint of texture and strength. . In addition, adhesion and fusion by such thermocompression bonding method,
Although the details are not clear, there is also the influence of the oil applied during guarding, and the spunbond web method, which does not have any oil applied at all, is more effective than the normal carded web, and its adhesion and fusion effects In order to take advantage of the surface effect of the non-woven fabric, it is preferable to use a spunbond web on one side. The basis weight is 30g/m2 or more , 50-150g/ m2 ,
The thickness used is about 0.2 to 0.6 mm. On the surface
Small depressions based on thermocompression bonding are scattered at a density of 2000 to 6000 pieces/10 x 10 cm square. The depth of the recess is 0.2~1.0mm
Therefore, there is no problem even if the recess extends to the B layer. The area of each recess is 1 mm 2 or less, preferably 0.8
mm 2 or less, more preferably 0.03 to 0.10 mm 2 . Such a surface is smooth, prevents the generation of fuzz, is easy to print on, and can withstand long-term use as an interior material surface. For the B layer, natural, recycled, semi-synthetic, and synthetic fibers can be used, and the fineness is 0.5 to 30 d.
It is preferable to use fibers that are thicker than those of the A layer.
The fibers are intertwined three-dimensionally to form a mat shape,
There is no adhesion or fusion between fibers. Weight is 50-200
g/ m2 , preferably 50-150g/ m2 , thickness 0.5-
1.5mm is fine. Layer B has good cushioning properties. Some of the A layer fibers are intertwined with the B layer fibers, and some B layer fibers enter the A layer and are bonded to the A layer fibers by adhesion and/or fusion. Next, a typical method for manufacturing the nonwoven fabric of the present invention will be described. First, a long fiber web is taken out using a spunbond method, and the A-layer material of the present invention is manufactured by pressing the web using two hot rolls to the extent that the fibers are not partially or completely fused to each other. This A-layer material has a structure in which the fibers are not strongly bonded to each other and are easily entangled by needle punching, which will be described later. Next, as the B-layer material of the present invention, a short fiber web is taken out using a card method and laminated on the A-layer material.
Needle punching is performed so that both materials are intertwined with each other on the polymerization surface. The thus obtained bonding material was heat-pressed and bonded to the smooth roll with the surface of layer A facing the convex roll.
The nonwoven fabric of the present invention is manufactured by providing recesses by thermocompression bonding only on the surface of the layer. Next, examples will be shown. Example 1 Spinning temperature of polyethylene terephthalate chips
Continuous filaments are formed by spinning at 290°C through a rectangular spindle with a nozzle with a hole diameter of 0.25 mm, and these filaments are then spun into approximately 5,000 fibers by a rectangular air sucker.
A web of 1.3 denier single fibers with a basis weight of 70 g/m 2 was taken out by collecting the web on a wire mesh that was pulled and moved at a speed of m/min. This web has a convex shape with an area of 0.25 mm 2 ,
Height: 0.33mm, scattered density: 7000 pieces/10×10 (cm 2 )
210 through between a convex roll and a smooth roll with
Thermocompression bonding was carried out at ℃ with a linear pressure of 15 kg/cm. The A-layer material of the present invention obtained in this way is bulky and soft, and the fibers move easily with each other due to external force.
Furthermore, there was no problem in winding up the film or the like. Next, as the B layer material of the present invention, polyester fiber (3.0 denier, length 102 mm) was used to obtain a fabric weight.
A 100 g/m 2 carded web is taken and laminated on top of the A-layer material. This laminated material is made into B
The layer material surface was entangled under the conditions that the needle depth was 15 mm and the number of needles was 100/cm 2 , and the layer A material surface was entangled under the conditions that the needle depth was 9 mm and the number of needles was 100/cm 2 . In the product thus obtained, the A-layer material and the B-layer material were intertwined at their joint surfaces. Furthermore, the convex shape of this object has an area of 0.05 mm 2 and a depth of
The distance between a convex roll with a scattering density of 4000/10×10 (cm 2 ) and a smooth roll is 0.05 mm, and the material is passed through the convex roll at a temperature of 221°C and the smooth roll at 113°C, and bonded under heat to form a nonwoven fabric. was manufactured. The nonwoven fabric thus obtained has a smooth surface and excellent abrasion resistance because the A layer is spunbonded and heat-compressed, and the B layer has a smooth surface and excellent abrasion resistance.
Since the layers were formed using a needle punch method, it had a soft texture and favorable bulkiness. That is, the nonwoven fabric of the present invention effectively takes advantage of the respective advantages of a spunbond nonwoven fabric and a needle punched nonwoven fabric and compensates for the drawbacks of each other. However, the nonwoven fabric of the present invention has one smooth surface, has excellent abrasion resistance, has good surface processing properties such as printing or coating, is soft and bulky, has good dimensional stability, and is suitable for dyeing processing. It is also durable. Therefore, the nonwoven fabric of the present invention has a wide range of uses, including leather and synthetic leather bases for bag materials, various core materials, wall materials,
It is expected to be used for chair upholstery, vehicle interior materials, necktie cores, etc. Next, the physical properties of the nonwoven fabric of the present invention will be shown.
【表】
測定はJIS−Ｌ−1085に従つて測定した。
以上のように本発明の不織布は、その工程途中
で発生するニードリングしたままのものに比べて
５％伸長時応力の値が高く、このことからもその
寸法安定性の優れたものであることは明らかであ
る。また、強力その他のバランスも向上する傾向
にあり、数値的表現のむつかしい風合、触感、表
面の平滑性、裏面のボリユーム感等と合せると利
用分野の広い優れた不織布であると言える。
実施例 ２
実施例１で得られた本発明の不織布のＡ層表面
にポリアクリル酸エステル系樹脂を20ｇ／m2コー
テイングした後色柄模様をプリントした。得られ
たものは通常のニードルパンチを施しただけの不
織布に、上記のコーテイング及び色柄プリントを
行なつたものに比べ、表面コーテイング面は毛羽
立ちもなく、平滑で安定しており、色柄プリント
も鮮明であつた。さらにこの加工した本発明の不
織布を車輛内装材として用いたが、従来表皮材の
下に用いるウレタンフオーム等のクツシヨン材を
用いなくても、嵩高い裏面の効果でソフト感に優
れ、また表面毛羽立ちもなく、寸法安定性にも優
れたものであつた。
実施例 ３
実施例１と同様にしてナイロン６を紡糸して得
た単糸1.5デニールの目付70ｇ／m2のウエブを、
実施例１と同様の凹凸ロールと平滑ロールの間を
通し170℃で線圧18Kg／cmで熱圧着し、Ａ層材料
とした。次いで、ナイロン６繊維（３デニール、
長さ102mm）を用いた目付100ｇ／m2のカードウエ
ブをＢ層材料としてＡ層材料に積層した。
これを実施例１と同様にニードルパンチング
し、続いて凹凸ロールと平滑ロールの間を通し
た。凹凸ロールの温度は198℃、平滑ロール115
℃、線圧５Kg／cmに設定し、Ａ層にのみ凹凸模様
を有した本発明の不織布を製造した。
得られた本発明不織布はＡ層が平滑であり、ま
た耐摩耗性に優れ、Ｂ層は短繊維をニードルパン
チングした時に持つソフトな風合と嵩高性の優れ
たものであり、このＡ層表面はアクリル系樹脂ま
たはウレタン系樹脂をコーテイングするのに適
し、ソフト性、ボリユーム感、折れ曲り特性等優
れた特性を有する合成皮革ベース材をして有用な
ものであつた。
次に本発明不織布の物性を示す。[Table] Measurements were made in accordance with JIS-L-1085. As mentioned above, the nonwoven fabric of the present invention has a higher value of stress at 5% elongation than that of the nonwoven fabric that has been needled during the process, and this also indicates that it has excellent dimensional stability. is clear. In addition, the balance of strength and other properties tends to improve, and when combined with the texture, feel, smoothness of the surface, volume on the back surface, etc., which are difficult to express numerically, it can be said that it is an excellent nonwoven fabric with a wide range of applications. Example 2 The surface of layer A of the nonwoven fabric of the present invention obtained in Example 1 was coated with 20 g/m 2 of polyacrylate resin, and then a colored pattern was printed. Compared to the above-mentioned coating and colored pattern printing on a nonwoven fabric that is simply needle-punched, the surface coated surface is smooth and stable without fluffing, and the colored pattern printed on it is smooth and stable. It was also clear. Furthermore, this processed nonwoven fabric of the present invention was used as a vehicle interior material, but the bulky back surface provided an excellent soft feel without using a cushion material such as urethane foam that was conventionally used under the surface material, and the surface did not have any fluff. It also had excellent dimensional stability. Example 3 A web of 1.5 denier single yarn with a basis weight of 70 g/m 2 obtained by spinning nylon 6 in the same manner as in Example 1 was
It was passed between the same uneven roll and smooth roll as in Example 1 and thermocompression bonded at 170°C with a linear pressure of 18 kg/cm to obtain an A-layer material. Next, nylon 6 fiber (3 denier,
A card web having a fabric weight of 100 g/m 2 and having a length of 102 mm) was laminated on the A layer material as the B layer material. This was needle punched in the same manner as in Example 1, and then passed between an uneven roll and a smooth roll. The temperature of the uneven roll is 198℃, and the temperature of the smooth roll is 115℃.
℃ and a linear pressure of 5 kg/cm, a nonwoven fabric of the present invention having an uneven pattern only on the A layer was produced. In the obtained nonwoven fabric of the present invention, the A layer is smooth and has excellent abrasion resistance, and the B layer has a soft texture and excellent bulk when short fibers are needle-punched. It is suitable for coating with acrylic resin or urethane resin, and is useful as a synthetic leather base material having excellent properties such as softness, volume, and bending properties. Next, the physical properties of the nonwoven fabric of the present invention will be shown.
【表】
引裂強力はペンジユラム法で測定した。
以上のように物性上も強力的に優れ、伸度も小
さくなつており、タテ、ヨコ、安定性の優れた不
織布であることは明らかである。
比較例 １
実施例１において、ニードリング後の熱圧着に
おける凸ロール温度をポリエステル繊維の融点以
上の275℃とした以外、同様に実施した。その結
果、凸ロール側のウエブはロールに融着し、製品
にはなり得なかつた。
又、実施例１のニードリング後のウエブを融点
以上の275℃のオーブン中で１分間処理した結果、
表面繊維は溶け、全体として形態を保つものとは
なり得なかつた。このように単成分繊維のウエブ
では融点以上の処理では繊維が溶けすぎ、形態を
保たなくなる。[Table] Tear strength was measured by the pendulum method.
As mentioned above, it is clear that the nonwoven fabric has excellent physical properties, has low elongation, and has excellent vertical and horizontal stability. Comparative Example 1 The same procedure as in Example 1 was carried out except that the temperature of the convex roll during thermocompression bonding after needling was set to 275° C., which is higher than the melting point of the polyester fiber. As a result, the web on the convex roll side was fused to the roll and could not be made into a product. Moreover, as a result of processing the web after needling in Example 1 in an oven at 275°C above the melting point for 1 minute,
The surface fibers melted and could not maintain their shape as a whole. In this way, in the case of a web made of monocomponent fibers, the fibers will melt too much if processed at temperatures above the melting point, and will no longer maintain their shape.
【表】
比較例 ２
実施例１において、ニードリング後のウエブを
表裏逆にしてカードウエブを凸ロール側として凸
ロール／平滑ロール間で熱圧着した結果、表面の
見かけ上は、本発明不織布と類似しているが、表
面の接着、融着が弱く、毛羽立ち易いものであつ
た。[Table] Comparative Example 2 In Example 1, the web after needling was turned inside out and the carded web was placed on the convex roll side and thermocompression bonded between the convex roll/smooth roll. Although it was similar, the adhesion and fusion on the surface were weak and it was easily fluffed.
Claims (1)
表面に熱圧着による微小な凹部が一面に散在し、
その繊維同士が構成繊維の融点以下の温度と圧力
で接着及び／又は融着により相互に結合されてお
り、Ｂ層は繊維同士が三次元的に相互に交絡して
マツト状を呈しており、Ａ層の繊維の一部はＢ層
の繊維と交絡し、Ｂ層の繊維の一部はＡ層に入り
こんで該接着及び／又は融着によりＡ層の繊維と
結合してなることを特徴とする不織布。1 A non-woven fabric consisting of two layers, A and B. The A layer has minute recesses scattered all over its surface due to thermocompression bonding,
The fibers are bonded to each other by adhesion and/or fusion at a temperature and pressure below the melting point of the constituent fibers, and the B layer has a mat-like shape in which the fibers are intertwined three-dimensionally with each other. A part of the fibers of the A layer are intertwined with the B layer fibers, and some of the B layer fibers enter the A layer and are combined with the A layer fibers by the adhesion and/or fusion. non-woven fabric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56141215A JPS5841958A (en) | 1981-09-08 | 1981-09-08 | Nonwoven fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56141215A JPS5841958A (en) | 1981-09-08 | 1981-09-08 | Nonwoven fabric |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5841958A JPS5841958A (en) | 1983-03-11 |
| JPH0144822B2 true JPH0144822B2 (en) | 1989-09-29 |
Family
ID=15286811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56141215A Granted JPS5841958A (en) | 1981-09-08 | 1981-09-08 | Nonwoven fabric |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5841958A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009280934A (en) * | 2008-05-23 | 2009-12-03 | Unitika Ltd | Interior sheet and method for producing the same |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6392431A (en) * | 1986-10-08 | 1988-04-22 | Kyoraku Co Ltd | Manufacture of molding with skin |
| JP2001055653A (en) * | 1999-06-07 | 2001-02-27 | Kureha Ltd | Interior material made of nonwoven fabric |
| DE502004009664D1 (en) * | 2004-11-23 | 2009-08-06 | Reifenhaeuser Gmbh & Co Kg | Laminate of at least three layers and method for producing an at least three-layer laminate |
| JP5749957B2 (en) * | 2011-03-24 | 2015-07-15 | 日本バイリーン株式会社 | Decorative fiber sheet for automobile |
| CN110916904B (en) * | 2019-12-19 | 2021-10-12 | 福建恒安集团有限公司 | Ultrasonic three-dimensional absorber and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5034146A (en) * | 1973-07-27 | 1975-04-02 | ||
| JPS5520029A (en) * | 1978-07-31 | 1980-02-13 | Okabe Maika Kogyosho:Kk | Manufacture of acoustic material |
-
1981
- 1981-09-08 JP JP56141215A patent/JPS5841958A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5034146A (en) * | 1973-07-27 | 1975-04-02 | ||
| JPS5520029A (en) * | 1978-07-31 | 1980-02-13 | Okabe Maika Kogyosho:Kk | Manufacture of acoustic material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009280934A (en) * | 2008-05-23 | 2009-12-03 | Unitika Ltd | Interior sheet and method for producing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5841958A (en) | 1983-03-11 |
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