JPH0547656B2 - - Google Patents
Info
- Publication number
- JPH0547656B2 JPH0547656B2 JP1262628A JP26262889A JPH0547656B2 JP H0547656 B2 JPH0547656 B2 JP H0547656B2 JP 1262628 A JP1262628 A JP 1262628A JP 26262889 A JP26262889 A JP 26262889A JP H0547656 B2 JPH0547656 B2 JP H0547656B2
- Authority
- JP
- Japan
- Prior art keywords
- film
- fiber
- fused
- fused part
- fibers
- 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
- 239000000835 fiber Substances 0.000 claims description 105
- 239000004745 nonwoven fabric Substances 0.000 claims description 27
- 239000000470 constituent Substances 0.000 claims description 23
- 239000010419 fine particle Substances 0.000 claims description 16
- 239000003086 colorant Substances 0.000 claims description 11
- 230000004927 fusion Effects 0.000 claims description 11
- 239000000049 pigment Substances 0.000 claims description 10
- 239000000975 dye Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 229920006254 polymer film Polymers 0.000 claims description 4
- 238000009825 accumulation Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- -1 etc. Substances 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 5
- 229920001155 polypropylene Polymers 0.000 description 5
- 239000012528 membrane Substances 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 229920005597 polymer membrane Polymers 0.000 description 3
- 239000001044 red dye Substances 0.000 description 3
- 229920001169 thermoplastic Polymers 0.000 description 3
- 239000004416 thermosoftening plastic Substances 0.000 description 3
- 239000001856 Ethyl cellulose Substances 0.000 description 2
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920001249 ethyl cellulose Polymers 0.000 description 2
- 235000019325 ethyl cellulose Nutrition 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Nonwoven Fabrics (AREA)
- Decoration Of Textiles (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Manufacturing Of Multi-Layer Textile Fabrics (AREA)
Description
本発明は、車両用内装材、インテリア用内装材
或いは外衣等に好適に用いられる模様のある不織
布の製造方法に関し、特に機能面において耐摩耗
性や表面意匠性等に優れた模様のある不織布の製
造方法に関するものである。
The present invention relates to a method for manufacturing a patterned nonwoven fabric that is suitably used for vehicle interior materials, interior decoration materials, outer clothing, etc., and particularly relates to a method for manufacturing a patterned nonwoven fabric that has excellent functional properties such as abrasion resistance and surface design. This relates to a manufacturing method.
従来より、車両用内装材等として、構成繊維を
機械的に絡合させたニードルパンチ不織布や、構
成繊維を集積させた繊維ウエブに部分的な融着結
合区域を設けた、いわゆポイントシール不織布が
用いられている。そして、これらの不織布には各
種の模様が捺染等によつて施され、内装材として
の商品価値の高めるべく努力がなされている。
しかしながら、ニードルパンチ不織布は表面の
外観が平坦であるため、捺染によつて模様づけを
施しても、凹凸に基づく高度な深みのある意匠を
与えることができないという憾みがあつた。更
に、ニードルパンチ不織布は構成繊維が機械的に
絡合されているだけであるので、表面の摩擦によ
つて構成繊維が毛羽立つてくるということがあつ
た。
一方、ポイントシール不織布は、構成繊維が融
着結合区域で一体化しているので、表面が毛羽立
ちにくく、耐摩耗性という点ではニードルパンチ
不織布よりも優れている。また、ポイントシール
不織布は融着結合区域が凹部となつており非融着
区域が凸部となつているので、その表面の外観は
凹凸状態を呈し、捺染によつて模様づけを施す
と、ある程度の深みのある意匠を与えることがで
きる。しかしながら、更に高度な深みのある意匠
を与えることができなかつた。
Conventionally, needle-punched nonwoven fabrics in which constituent fibers are mechanically entangled, and so-called point seal nonwoven fabrics in which partial fusion bonding areas are provided in a fiber web in which constituent fibers are accumulated, have been used as interior materials for vehicles. is used. Various patterns are applied to these nonwoven fabrics by printing or the like, and efforts are being made to increase their commercial value as interior materials. However, since needle-punched nonwoven fabrics have a flat surface appearance, even if they are patterned by printing, it is not possible to create designs with a high degree of depth based on unevenness. Furthermore, since the constituent fibers of the needle-punched nonwoven fabric are merely mechanically entangled, the constituent fibers sometimes become fluffy due to surface friction. On the other hand, since the constituent fibers of the point seal nonwoven fabric are integrated in the fusion-bonded area, the surface is less likely to fuzz and is superior to the needle punch nonwoven fabric in terms of abrasion resistance. In addition, since the point seal nonwoven fabric has concave areas in the fused areas and convex areas in the non-fused areas, the surface appearance is uneven, and when patterned by printing, it may be difficult to It is possible to create a design with great depth. However, it has not been possible to provide a more advanced design with depth.
本発明者は、更に高度な深みのある意匠をポイ
ントシール不織布に与えるにはどのようにすれば
よいかを種々検討した結果、凹部の色と凸部の色
とを異ならしめればよいことに想い到つた。しか
しながら、凹部の面積は一般的に非常に狭く、例
えば円の直径に換算して0.3〜1.5mm径程度であ
る、凹部のみに異なつた色を捺染技術等によつて
着色することは困難であつた。
そこで、本発明は、ある特定の繊維集積体を処
理することにより、融着結合区域のみに異なつた
色が発現するようにしたものである。
As a result of various studies on how to give the point seal nonwoven fabric a more sophisticated and deep design, the inventors found that it would be sufficient to make the concave portions and convex portions have different colors. I got the idea. However, the area of the recess is generally very small, for example, approximately 0.3 to 1.5 mm in diameter when converted to the diameter of a circle, and it is difficult to color only the recess with a different color using textile printing technology. Ta. Therefore, in the present invention, a specific fiber aggregate is treated so that a different color appears only in the fusion-bonded area.
即ち、本発明は、繊維集積体に部分融着結合を
施してフイルム状融着部と非融着部とを形成させ
ることにより、フイルム状融着部と非融着部とが
異色になるようにするものであるが、特ち繊維集
積体の構成を工夫することによつてフイルム状融
着部が非融着部とは異なつた色に表現する点にそ
の特徴が存する。
本発明においては、まずある特定の繊維集積体
を準備する。この繊維集積体の構成が重要であ
り、以下の如き二種類の構成が採用される。
第一に、構成繊維が集積されいなる繊維層と、
該繊維層とは異色の層とを具備してなる繊維集積
体を用いることができる。このような繊維集積体
の例としては、例えば繊維層として白色の繊維Ａ
を集積してなる繊維ウエブを用い、異色の層とて
し赤色の繊維Ｂを集積してなる繊維ウエブを用
い、両者を積層してなるものが代表的である。異
色の層として、前記では繊維ウエブを用いたが、
不織布、編織物、紙、フイルム、発泡シート等の
種々の材料を使用することができる。また、繊維
層と異色の層とは、全体的に一体化された状態で
積層されていてもよいし、単に重ね合わされた状
態で積層されていてもよい。
第二に、構成繊維と、該構成繊維とは異色の染
料又は顔料を高分子膜で囲繞した微細粒子とを含
有する繊維集積体を用いてもよい。ここで使用す
る微細粒子は、いわゆるマイクロカプセルと言わ
れているものであつて、定常状態では高分子膜の
色を呈しているが、熱や圧力を加えることによつ
て高分子膜を破ると、収納されている染料又は顔
料が露出し、その色に着色されるものである。こ
のような繊維集積体の例としては、白色の繊維Ａ
と、赤色の染料又は顔料を白色の高分子膜で囲繞
した微細粒子Ｂとを混合、集積した繊維ウエブが
代表的である。なお、微細粒子は粒径が小さく、
構成繊維間〓に把持されにくい傾向があるため、
糊剤等を用いて構成繊維に微細粒子を予め付着さ
せておくのが好ましい。また、シート状或いは細
片状の合成樹脂製フイルム、紙又は編織物等に微
細粒子を予め付着させておき、これと構成繊維と
を用いて繊維集積体としてもよい。
なお、以上の例では色を白色或いは赤色等に特
定しているが、その他の色を採用してもよいこと
は勿論である。
また、使用する構成繊維としては、ポリエステ
ル繊維、ポリアミド繊維、ポリオレフイン繊維等
の熱可塑性繊維が用いられる。更に、この熱可塑
性繊維に木綿や羊毛等の天然繊維を混合してもよ
い。熱可塑性繊維は、短繊維、長繊維或いは連続
繊維の形態で用いられる。繊維集積体を構成する
繊維ウエブは、クロスレイ性、エアレイ法、スパ
ンボンド法等の従来公知の各種の方法で形成する
ことができる。また、繊維ウエブは、構成繊維間
が全く結合又は絡合していないものであつてもよ
いし、予備的に結合又は絡合しているものであつ
てもよい。
次に、以上の如き繊維集積体に、部分融着結合
を施してフイルム状融着部と非融着部とを形成さ
せる。部分融着結合の方法としては、彫刻された
加熱凹凸ロールと平滑ロールとの間に繊維集積体
を通しながら、凹凸ロールの凸部の働きによつて
繊維集積体に熱と圧力とを作用させる方法、又は
常温の凹凸ロールと平板状の超音波発振装置との
間に繊維集積体を通しながら、凹凸ロールの凸部
から発振される超音波によつて熱（及び多少の圧
力）を作用させる方法を用いることができる。こ
の部分融着結合による熱及び／又は圧力の作用に
より、凹凸ロールの凸部に対応する繊維集積体の
構成繊維等が相互に溶融固着し、フイルム状融着
部が形成されるのである。また、凹凸ロールの凹
部に対応する繊維集積体の構成繊維等は、熱及
び／又は圧力の作用を殆ど受けないため、変質せ
ず非融着部となるのである。このようにして得ら
れた不織布は、フイルム状融着部が凹部となり、
その他の非融着部が凸部となつたものである。
That is, in the present invention, a film-like fused part and a non-fused part are formed by performing partial fusion bonding on a fiber aggregate, so that the film-like fused part and the non-fused part have different colors. However, its characteristic lies in that, by devising the structure of the fiber aggregate, the film-like fused portion can be expressed in a different color from the non-fused portion. In the present invention, a specific fiber aggregate is first prepared. The structure of this fiber aggregate is important, and the following two types of structures are adopted. First, a fiber layer in which constituent fibers are accumulated;
A fiber assembly comprising a layer having a different color from the fiber layer can be used. As an example of such a fiber aggregate, for example, white fiber A is used as a fiber layer.
A typical example is a fiber web formed by accumulating fibers B of a different color, a fiber web formed by accumulating red fibers B as a layer of a different color, and a lamination of both. In the above, a fiber web was used as the unique layer, but
Various materials can be used, such as non-woven fabrics, knitted fabrics, paper, films, foam sheets, etc. Further, the fiber layer and the layer of different color may be laminated in an integrated state as a whole, or may be laminated in a state where they are simply overlapped. Second, a fiber aggregate containing constituent fibers and fine particles in which a dye or pigment of a different color from the constituent fibers is surrounded by a polymer membrane may be used. The fine particles used here are so-called microcapsules, which exhibit the color of a polymer membrane in a steady state, but if the polymer membrane is broken by applying heat or pressure. , the stored dye or pigment is exposed and colored in that color. An example of such a fiber aggregate is white fiber A.
A typical example is a fiber web in which fine particles B, in which a red dye or pigment is surrounded by a white polymer film, are mixed and accumulated. Note that fine particles have a small particle size,
Because it tends to be difficult to be held between the constituent fibers,
It is preferable to attach fine particles to the constituent fibers in advance using a glue or the like. Further, fine particles may be attached in advance to a sheet-like or strip-like synthetic resin film, paper, knitted fabric, etc., and a fiber aggregate may be formed by using the fine particles and the constituent fibers. Note that in the above example, the color is specified as white or red, but it goes without saying that other colors may be used. Further, as the constituent fibers used, thermoplastic fibers such as polyester fibers, polyamide fibers, and polyolefin fibers are used. Furthermore, natural fibers such as cotton and wool may be mixed with this thermoplastic fiber. Thermoplastic fibers are used in the form of short fibers, long fibers or continuous fibers. The fiber web constituting the fiber aggregate can be formed by various conventionally known methods such as cross-laying, air-laying, and spunbonding. Furthermore, the fiber web may be such that the constituent fibers are not bonded or entangled at all, or may be preliminarily bonded or entangled. Next, the fiber assembly as described above is partially fused and bonded to form a film-like fused portion and a non-fused portion. The method of partial fusion bonding is to pass the fiber aggregate between a engraved heated uneven roll and a smooth roll, and apply heat and pressure to the fiber aggregate by the action of the convex parts of the uneven roll. method, or applying heat (and some pressure) by ultrasonic waves emitted from the convex portions of the concave and convex roll while passing the fiber aggregate between a concave and convex roll at room temperature and a flat ultrasonic oscillator. A method can be used. Due to the action of heat and/or pressure caused by this partial fusion bonding, the constituent fibers of the fiber assembly corresponding to the convex portions of the uneven roll are melted and fixed to each other, forming a film-like fused portion. Further, since the constituent fibers of the fiber assembly corresponding to the concave portions of the uneven roll are hardly affected by heat and/or pressure, they do not change in quality and become non-fused portions. In the nonwoven fabric thus obtained, the film-like fused portion becomes a concave portion,
The other non-fused portions are convex portions.
第一の繊維集積体を用いた場合には、部分融着
結合によつて形成されたフイルム状融着部におい
て、繊維層と異色の層とが相互に溶融し且つ混ざ
り合う。従つて、フイルム状融着部は繊維層の色
と異色の層の色とを混色した色となる。例えば、
白色の繊維Ａからなる繊維層と赤色の繊維Ｂから
なる異色の層とが積層されてなる繊維集積体を用
いた場合には、凹部であるフイルム状融着部は桃
色となる。そして、凸部である非融着部は、片面
では白色であり、他面では赤色である。従つて、
得られた不織布は外観上フイルム状融着部と非融
着部とが異色となる。また、白色の繊維Ａからな
る繊維層と赤色フイルムからなる異色の層とが積
層されてなる繊維集積体を用いた場合にも、同様
に凹部であるフイルム状融着部は桃色となる。な
お、白色の繊維層と赤色の層との目付の比を種々
変化させることにより、フイルム状融着部は白色
に近い桃色から赤色に近い桃色まで変化させるこ
とができる。
第二の繊維集積体を用いた場合には、部分融着
結合によつて形成されたフイルム状融着部におい
て、微細粒子を構成する高分子膜は破れており、
染料又は顔料が露出し、且つ溶融した構成繊維と
混ざり合つている。従つて、フイルム状融着部
は、構成繊維の色と染料又は顔料の色とを混色し
た色となる。例えば、繊維集積体が白色の繊維Ａ
と、赤色の染料又は顔料が白色の高分子膜で囲繞
された微細粒子とよりなる場合には、フイルム状
融着部は桃色になる。従つて、凹部であるフイル
ム状融着部は桃色であり、凸部である非融着部は
白色となつており、外観上フイルム状融着部と非
融着部とは異色となる。なお、この場合において
も、白色の繊維Ａと、赤色の染料又は顔料がが包
含されている微細粒子の配合割合を種々変化させ
ることにより、フイルム状融着部は白色に近い桃
色から赤色に近い桃色まで変化させることができ
る。
なお、以上の例において、色を白色あるいは赤
色に特定しているが、その他の色を採用してもよ
いことは勿論である。
When the first fiber aggregate is used, the fiber layer and the different color layer are melted and mixed with each other in the film-like fused portion formed by partial fusion bonding. Therefore, the film-like fused portion has a color that is a mixture of the color of the fiber layer and the color of the layer of a different color. for example,
When a fiber assembly is used in which a fiber layer made of white fibers A and a different color layer made of red fibers B are laminated, the film-like fused portion, which is a concave portion, is pink in color. The non-fused portion, which is a convex portion, is white on one side and red on the other side. Therefore,
The resulting nonwoven fabric has a film-like fused portion and a non-fused portion with different colors in appearance. Furthermore, when using a fiber aggregate formed by laminating a fiber layer made of white fiber A and a layer of a different color made of red film, the film-like fused portion, which is a concave portion, similarly becomes pink. By varying the ratio of the basis weight of the white fiber layer and the red layer, the film-like fused portion can be changed from a pink color close to white to a pink color close to red. When the second fiber aggregate is used, the polymer film constituting the fine particles is torn in the film-like fused portion formed by partial fusion bonding.
The dye or pigment is exposed and mixed with the molten constituent fibers. Therefore, the film-like fused portion has a color that is a mixture of the color of the constituent fibers and the color of the dye or pigment. For example, fiber A whose fiber aggregate is white
When the red dye or pigment consists of fine particles surrounded by a white polymer film, the film-like fused portion becomes pink. Therefore, the film-like fused portion, which is a concave portion, is pink, and the non-fused portion, which is a convex portion, is white, and the film-like fused portion and the non-fused portion have different colors in appearance. In this case as well, by varying the blending ratio of the white fiber A and the fine particles containing the red dye or pigment, the film-like fused portion can vary from a pink color close to white to a color close to red. You can change the color to pink. Note that in the above example, the color is specified as white or red, but it goes without saying that other colors may be used.
実施例 １
うすい灰色に着色された、繊維径1.0デニール、
繊維長40mmのポリエステル繊維100重量％からな
るクロスレイフリースと、黒に着色された、繊維
径1.5デニール、繊維長40mmのポリエステル繊維
100重量％からなるクロスレイフリースとを積層
して、繊維フリースを得た。
この繊維フリースに次の条件で高圧柱状流を施
した。即ち、オリフイス径0.2mm、オリフイス数
1000個／ｍであるノイズを用いて、75Kg／cm2の圧
力で２回、100Kg／cm2の圧力で５回、繊維ウエブ
に水柱流を施し、その後脱水乾燥した。この結
果、前記の構成繊維間が相互に緊密に絡合された
繊維ウエブが得られた
この繊維集積体である繊維ウエブを、次の如き
超音波発振装置を通して、部分融着結合を施し
た。即ち、この超音波発振装置は、一方が周波数
19.5KHzの超音波発振ホーンと、他方が0.8mm径の
ドツト状凸部を有し、その凸部の総面積が20％の
彫刻ロールとよりなるものである。フイルム状融
着部は、彫刻ロールの凸部に対応して設けられる
ため、フイルム状融着部の大きさは約0.8mm径で
あり、フイルム状融着部の総面積は、不織布の全
面積に対して20％であつた。
以上のようにして得られた不織布は、フイルム
状融着部が凹部となり、非融着部が凸部となつて
いる凹凸状の表面状態を呈し、且つ凸部である非
融着部は片面がうすい灰色であつて他面は黒色で
あるのに対し、凹部は濃い灰色であり、全体とし
て極めて富む意匠となつている。従つて、この不
織布は、自動車の内装材として好適に使用しうる
ものであつた。
実施例 ２
まず、黒色顔料であるカーボンブラツクをエチ
ルセルロース膜で囲繞した粒子径100μの微細粒
子を準備した。この微細粒子を、表面に澱粉糊を
塗つたポリプロピレン繊維の表面に固着させた。
なお、ポリプロピレン繊維の繊維径は2.5デニー
ルであり、繊維長は36mmである。また、ポリプロ
ピレン繊維及びエチルセルロース膜は両者とも白
色であり、そして微細粒子とポリロピレン繊維の
重量比は、１：１とした。この微細粒子が固着し
たポリプロピレン繊維を、エアレイ法で集積し
て、繊維ウエブを得た。
この繊維ウエブを、100℃に加熱された凹凸ロ
ールと常温の平滑ロールとの間に線圧60Kg／cmで
通した。なお、凹凸ロールは、0.8mm径のドツト
状凸部を有し、その凸部の総面積が20％である。
この結果、ドツト状凸部に対応する繊維ウエブの
部分において、微細粒子を構成しているセルロー
ス膜が破れ、カーボンブラツクが露出した。
以上のようにして得られた不織布は、ドツト状
凸部に対応する部分がフイルム状融着部となつて
凹部となり、非融着部が凸部となつている凹凸状
の表面状態を呈し、且つ凸部である非融着部は白
色であるのに対し、凹部は濃い灰色であり、全体
としてコントラストに富んだ意匠なつている。従
つて、この不織布は、自動車の内装材として好適
に使用しうるものであつた。
Example 1 Fiber diameter 1.0 denier, colored pale gray,
Crosslay fleece made of 100% by weight polyester fibers with a fiber length of 40 mm and black colored polyester fibers with a fiber diameter of 1.5 denier and a fiber length of 40 mm.
A fiber fleece was obtained by laminating a 100% by weight Crosslay fleece. This fiber fleece was subjected to high-pressure columnar flow under the following conditions. That is, orifice diameter 0.2mm, number of orifices
The fiber web was subjected to a water column flow twice at a pressure of 75 Kg/cm 2 and five times at a pressure of 100 Kg/cm 2 using a noise of 1000 pieces/m, and then dehydrated and dried. As a result, a fibrous web in which the constituent fibers were tightly entangled with each other was obtained. This fibrous web, which was an aggregate of fibers, was subjected to partial fusion bonding through an ultrasonic oscillator as described below. In other words, in this ultrasonic oscillation device, one side has a frequency
It consists of a 19.5KHz ultrasonic oscillation horn and an engraving roll with one end having a dot-shaped convex part with a diameter of 0.8 mm, and the total area of the convex part being 20%. Since the film-like fused part is provided corresponding to the convex part of the engraving roll, the size of the film-like fused part is approximately 0.8 mm in diameter, and the total area of the film-like fused part is equal to the total area of the nonwoven fabric. It was 20% of the total. The nonwoven fabric obtained as described above has an uneven surface state in which the film-like fused portions are concave portions and the non-fused portions are convex portions, and the non-fused portions, which are convex portions, are on one side. One side is pale gray and the other side is black, while the concave part is dark gray, giving it an extremely rich design as a whole. Therefore, this nonwoven fabric could be suitably used as an interior material for automobiles. Example 2 First, fine particles having a particle diameter of 100 μm were prepared by surrounding carbon black, which is a black pigment, with an ethyl cellulose membrane. These fine particles were adhered to the surface of polypropylene fibers coated with starch glue.
Note that the fiber diameter of the polypropylene fiber is 2.5 denier, and the fiber length is 36 mm. Further, both the polypropylene fibers and the ethyl cellulose membrane were white in color, and the weight ratio of the fine particles to the polypropylene fibers was 1:1. The polypropylene fibers to which the fine particles were fixed were collected by an airlay method to obtain a fiber web. This fibrous web was passed between an uneven roll heated to 100°C and a smooth roll at room temperature at a linear pressure of 60 kg/cm. The uneven roll has dot-shaped protrusions with a diameter of 0.8 mm, and the total area of the protrusions is 20%.
As a result, in the portion of the fiber web corresponding to the dot-shaped convex portion, the cellulose membrane constituting the fine particles was torn, and the carbon black was exposed. The nonwoven fabric obtained as described above exhibits an uneven surface state in which the portions corresponding to the dot-like convex portions become film-like fused portions and become concave portions, and the non-fused portions become convex portions, In addition, the non-fused portions, which are convex portions, are white, while the concave portions are dark gray, giving the overall design a rich contrast. Therefore, this nonwoven fabric could be suitably used as an interior material for automobiles.
以上説明したように、本発明に係る模様のある
不織布の製造方法は、部分融着結合をする際の、
繊維集積体としてある特殊な構成を持つものを採
用したので、部分融着結合によつて生じた凹部で
あるフイルム状融着部と凸部である非融着部とが
異色となる。従つて、不織布全体が凹凸状態にな
ると共に、凹部と凸部とが異なつた色となり、本
発明方法によれば、面白みがあると共に高度に深
みのある意匠を不織布に与えることができるとい
う効果を奏する。更に、この不織布は、フイルム
状融着部において構成繊維が溶融固着しているの
で、不織布表面の構成繊維が摩擦によつて毛羽立
ちにくいという効果も奏する。
依つて、本発明に係る方法で得られた模様のあ
る不織布は、車両用内装材やインテリア用内装材
として、好適に使用しうるものである。
As explained above, the method for manufacturing a patterned nonwoven fabric according to the present invention includes the following steps when performing partial fusion bonding:
Since a fiber aggregate with a certain special structure is adopted, the film-like fused portion, which is a concave portion caused by partial fusion bonding, and the non-fused portion, which is a convex portion, have different colors. Therefore, the entire nonwoven fabric becomes uneven, and the concave portions and convex portions have different colors. According to the method of the present invention, it is possible to give the nonwoven fabric an interesting and highly deep design. play. Furthermore, since the constituent fibers of this nonwoven fabric are fused and fixed in the film-like fused portion, the constituent fibers on the surface of the nonwoven fabric are less likely to fluff due to friction. Therefore, the patterned nonwoven fabric obtained by the method according to the present invention can be suitably used as a vehicle interior material or an interior interior material.
Claims (1)
層とは異色の層とを具備する繊維集積体に、部分
融着結合を施してフイルム状融着部と非融着部と
を形成させることにより、該フイルム状融着部に
おいて繊維層と異色の層とが溶融固着せしめられ
ると共に混色せしめられ、フイルム状融着部と非
融着部とが異色になることを特徴とする模様のあ
る不織布の製造方法。 ２ 構成繊維と、該構成繊維とは異色の染料又は
顔料を高分子膜で囲繞した微細粒子とを含有する
繊維集積体に、部分融着結合を施してフイルム状
融着部と非融着部とを形成させることにより、該
フイルム状融着部において染料又は顔料が露出せ
しめられ、フイルム状融着部と非融着部とが異色
になることを特徴とする模様のある不織布の製造
方法。[Scope of Claims] 1 A fiber aggregate comprising a fiber layer formed by an accumulation of constituent fibers and a layer of a different color from the fiber layer is subjected to partial fusion bonding to form a film-like fused portion and an unfused portion. By forming a bonded part, the fiber layer and a different color layer are melted and fixed in the film-like fused part, and the colors are mixed, so that the film-like fused part and the non-fused part become different colors. A method for producing a nonwoven fabric with a characteristic pattern. 2 A fiber aggregate containing constituent fibers and fine particles in which a dye or pigment of a different color than the constituent fibers is surrounded by a polymer film is subjected to partial fusion bonding to form a film-like fused part and a non-fused part. A method for producing a patterned nonwoven fabric, characterized in that dyes or pigments are exposed in the film-like fused part by forming a film-like fused part, and the film-like fused part and the non-fused part have different colors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1262628A JPH03124864A (en) | 1989-10-06 | 1989-10-06 | Production of patterned nonwoven fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1262628A JPH03124864A (en) | 1989-10-06 | 1989-10-06 | Production of patterned nonwoven fabric |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03124864A JPH03124864A (en) | 1991-05-28 |
| JPH0547656B2 true JPH0547656B2 (en) | 1993-07-19 |
Family
ID=17378437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1262628A Granted JPH03124864A (en) | 1989-10-06 | 1989-10-06 | Production of patterned nonwoven fabric |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03124864A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7463234B2 (en) * | 2020-09-01 | 2024-04-08 | 株式会社Howa | Vehicle interior cover |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5046978A (en) * | 1973-08-31 | 1975-04-26 |
-
1989
- 1989-10-06 JP JP1262628A patent/JPH03124864A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5046978A (en) * | 1973-08-31 | 1975-04-26 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03124864A (en) | 1991-05-28 |
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