JPH0762301B2 - Base material for polyester artificial leather - Google Patents
Base material for polyester artificial leatherInfo
- Publication number
- JPH0762301B2 JPH0762301B2 JP61211052A JP21105286A JPH0762301B2 JP H0762301 B2 JPH0762301 B2 JP H0762301B2 JP 61211052 A JP61211052 A JP 61211052A JP 21105286 A JP21105286 A JP 21105286A JP H0762301 B2 JPH0762301 B2 JP H0762301B2
- Authority
- JP
- Japan
- Prior art keywords
- polyester
- artificial leather
- base material
- fiber
- 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 - Fee Related
Links
Landscapes
- Nonwoven Fabrics (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明はスェード調又は銀面加工用ポリエステル人工皮
革用基材に関するものであり、高強力を有し伸びの少な
い、ソフトで加工性の良い人工皮革用基材を安価に得る
ことを目的とする。TECHNICAL FIELD The present invention relates to a base material for polyester artificial leather for suede or silver surface processing, which has high strength, low elongation, soft and good workability. The purpose is to obtain a base material for use at low cost.
従来の技術及びその問題点 現在、産業用及び衣料用人工皮革は主として、複数の樹
脂成分よりなる分割繊維を使用し、ウレタン湿式含浸前
後に他成分繊維を溶解除去し、極細化して製造されてお
り、風合い感触等は好評であるが、分割繊維の体積の約
半分近くを抽出せねばならず除去工程を必要とし、しか
も強度、寸法安定性を得るためには多量のウレタン樹脂
の含浸が要求される等非常に高価なものとなつていた。
また通常の単成分繊維使用の基材は、極細繊維のカード
紡出性に限度を有するため、より柔軟性を要求される分
野においてはヤング率の小さいポリアミド繊維多用の基
材が多く、安価で高強力を有するポリエステル繊維は人
工皮革用基材としては通常使用されていないのが現状で
ある。Conventional technology and its problems Currently, artificial leather for industrial use and clothing is mainly manufactured by using split fibers composed of a plurality of resin components, dissolving and removing other component fibers before and after wet impregnation of urethane, and then making them ultrafine. However, the texture and the like are well received, but about half of the volume of the split fibers must be extracted and a removal process is required, and a large amount of urethane resin impregnation is required to obtain strength and dimensional stability. It was very expensive.
In addition, since ordinary single-component fiber-based substrates have a limit to the card spinnability of ultrafine fibers, in fields where more flexibility is required, there are many substrates with many Young's modulus polyamide fibers that are inexpensive and inexpensive. At present, polyester fibers having high strength are not usually used as a base material for artificial leather.
尚、２〜３デニールの加熱収縮性ポリエステル性繊維を
主体とした人工皮革用基材も一部に見られるが、収縮処
理に高温での加工が要求されるため、黄変等の問題より
柔軟なポリアミド繊維の混用は難しく、細デニール化も
困難なため主として腰の要求される限定された用途に使
用されているにすぎない等の問題点がある。It should be noted that some base materials for artificial leather mainly composed of heat-shrinkable polyester fibers of 2 to 3 denier are found, but since shrinking treatment requires processing at high temperature, it is more flexible than problems such as yellowing. It is difficult to mix such polyamide fibers, and it is also difficult to make fine denier. Therefore, it is only used for limited applications where waist is mainly required.
問題点を解決するための手段 本発明は上記問題点を解消したポリエステル人工皮革用
基材を安価に提供するものである。Means for Solving the Problems The present invention provides a base material for artificial polyester leather which solves the above problems at low cost.
即ち、本発明に係るポリエステル人工皮革用基材は熱収
縮率が10％〜40％の加熱収縮性ポリエステル繊維を30〜
70％とし、該加熱収縮性繊維の収縮温度より高い融点を
有するポリエステルバインダー繊維を５〜20％混入し、
残りをヤング率300Kg/mm2以下の好ましくは１デニール
以下のポリエステル繊維とすることにより、ニードルパ
ンチ加工後の加熱収縮及び熱圧着加工により、人工皮革
用基材に要求される強力と適度な伸度及びソフトな風合
いを兼ね備えた基材を提供することにより問題点を解消
したものである。特に見掛け繊維密度を高く設定すれ
ば、従来の湿式ウレタン含浸処理加工なしでも充分なる
性能を有する人工皮革用基材が得られる等の特徴を有す
るものである。That is, the polyester artificial leather substrate according to the present invention has a heat shrinkage ratio of 10% to 40% of heat shrinkable polyester fiber of 30 to 40%.
70%, mixed with 5 to 20% of polyester binder fiber having a melting point higher than the shrinkage temperature of the heat-shrinkable fiber,
The remainder is made of polyester fiber having a Young's modulus of 300 Kg / mm 2 or less, preferably 1 denier or less, so that the heat shrinkage and the thermocompression bonding after the needle punching process provide the strength and appropriate elongation required for the artificial leather substrate. The problem is solved by providing a base material having both a degree and a soft texture. In particular, when the apparent fiber density is set high, the artificial leather base material having sufficient performance can be obtained without the conventional wet urethane impregnation treatment.
次に、本発明の加熱収縮性ポリエステル繊維の混率は、
30％未満では基材収縮が不十分でありソフト性に欠け好
ましくなく、70％を越えると腰が強くなり、人工皮革に
必須の表面タッチが悪くなり、ぬめり感が消失し好まし
くない。又繊維の熱収縮率が10％未満では基材収縮（面
積収縮）が不充分であり、40％を越えると収縮後の繊度
が太くなり、風合い硬化、表面感触の低下等が発生し好
ましくない。ポリエステルバインダー繊維の融点（接着
性能を発現する温度）は前記加熱収縮性繊維の収縮温度
より好ましくは10℃以上高い方が良く、低融点のものを
使用すると、加熱収縮処理工程で繊維間接着が進行し、
柔軟性の低下の原因となる。又ポリエステルバインダー
繊維の混率を20％を越えるとカレンダー加工等熱圧着処
理による風合い硬化が大きくなり、５％未満にすると所
望の基材強力及び適度な伸度を得ることが困難となり、
湿式ウレタン含浸処理等後加工に依存せざるる得なくな
り好ましくない。Next, the mixing ratio of the heat-shrinkable polyester fiber of the present invention is
If it is less than 30%, the contraction of the base material is insufficient and the softness is poor, and if it exceeds 70%, the stiffness becomes strong, the surface touch essential to the artificial leather is deteriorated, and the slimy feeling disappears, which is not preferable. If the heat shrinkage rate of the fiber is less than 10%, the shrinkage of the base material (area shrinkage) is insufficient, and if it exceeds 40%, the fineness after shrinkage becomes large, and the texture is hardened and the surface feel is deteriorated, which is not preferable. . The melting point of the polyester binder fiber (the temperature at which the adhesive performance is exhibited) is preferably higher than the shrinking temperature of the heat-shrinkable fiber by preferably 10 ° C. or more. Proceed,
It causes a decrease in flexibility. Further, if the mixing ratio of the polyester binder fiber exceeds 20%, the texture hardening due to thermocompression bonding such as calendering becomes large, and if it is less than 5%, it becomes difficult to obtain the desired substrate strength and appropriate elongation.
It is not preferable because it is unavoidable to rely on post-processing such as wet urethane impregnation.
次にヤング率300Kg/mm2以下の低ヤング率ポリエステル
を使用することにより、ポリアミド繊維使用に充分対抗
できる柔軟性を得ることが可能となり、特に１デニール
以下の細デニール繊維を使用すれば、柔軟性とぬめり感
を兼ね備えた人工皮革用基材が得られ、ポリアミド繊維
使用時のように加熱収縮処理での黄変も全くなく、外観
上も非常に優れたものである。尚、ニードルパンチ加工
処理のニードル打込数の基材物性及び仕上り風合いに与
える影響も大きく、500〜1000P/cm2が適当である。Next, by using a low Young's modulus polyester with a Young's modulus of 300 Kg / mm 2 or less, it is possible to obtain flexibility that can sufficiently oppose the use of polyamide fibers, and especially if fine denier fibers of 1 denier or less are used, A base material for artificial leather having both goodness and sliminess is obtained, and it does not undergo yellowing due to heat shrinkage treatment unlike when using polyamide fiber, and is very excellent in appearance. It should be noted that the effect of the number of needles punched in the needle punching treatment on the physical properties of the substrate and the finished texture is large, and 500 to 1000 P / cm 2 is appropriate.
以上のように構成することにより高強度にして適度な伸
びを有する、柔軟で加工性の良いポリエステル繊維人工
皮革用基材を比較的安価に得ることを可能としたもので
ある。With the above-mentioned structure, it is possible to obtain a polyester fiber artificial leather base material having a high strength, a suitable elongation and a good workability at a relatively low cost.
実施例 以下本発明の実施例を比較例と共に詳細に説明する。Examples Hereinafter, examples of the present invention will be described in detail together with comparative examples.
190℃×５分の加熱処理により20％収縮するポリエステ
ル繊維2d×51mm50％、ヤング率250Kg/mm2の低モジュラ
スポリエステル繊維0.8d×38mm40％、鞘成分の融点が20
0℃である芯鞘型ポリエステルバインダー繊維3d×51mm1
0％の混合繊維よりなるウエブに、打込み深さ7mmにて80
0P/cm2のニードルパンチ加工処理し、190℃の熱風乾燥
炉内で約10％の面積収縮加工を行ない、引き続き200℃
に調整された一対のカレンダーロールにて押圧し、仕上
り目付350g/m2、厚さ1.1のポリエステル人工皮革用基材
を得た。Polyester fiber 2d x 51mm 50% that shrinks 20% by heat treatment at 190 ° C x 5 minutes, low modulus polyester fiber 0.8d x 38mm 40% with Young's modulus 250Kg / mm 2 , melting point of sheath component is 20
Core-sheath type polyester binder fiber at 0 ° C 3d x 51mm1
80% at a depth of 7 mm on a web consisting of 0% mixed fibers
Needle punch processing of 0P / cm 2 and area shrinkage processing of about 10% in a hot air drying oven at 190 ° C, then 200 ° C.
The sheet was pressed with a pair of calender rolls adjusted to 1 to obtain a polyester artificial leather substrate having a finished weight of 350 g / m 2 and a thickness of 1.1.
比較のため、分割後の繊度が0.01〜0.1dとなる66ナイロ
ンの分割繊維よりなる繊維ウエブを同様にニードルパン
チ加工を施した後分割処理をして、目付200g/m2、厚さ
1.3mmの基材を得た。引続きこの基材にウレタン湿式処
法により含浸加工を行ない乾燥厚み調整を行ない、上り
目付350g/m2（DPu＝75％）厚さ1.1mmの比較例を得た。For comparison, a fiber web made of 66 nylon split fibers with a fineness of 0.01 to 0.1d after splitting is similarly needle punched and then split to obtain a basis weight of 200 g / m 2 , thickness.
A 1.3 mm substrate was obtained. Subsequently, this substrate was impregnated with a urethane wet process to adjust the dry thickness to obtain a comparative example having an upward areal weight of 350 g / m 2 (DPu = 75%) and a thickness of 1.1 mm.
本発明によつて得られたポリエステル人工皮革と比較例
との各々について物性を測定した結果を下表に示す。The following table shows the results of measuring the physical properties of each of the polyester artificial leather obtained according to the present invention and the comparative example.
発明の効果 本発明は上記の構成としたことにより、柔軟な風合にし
て、高強力と適度な伸びを有し、寸法安定性に優れ、従
来の分割繊維使用湿式ウレタン含浸人工皮革基材と比較
して遜色のないものであり、靴用途（特にスポーツシュ
ーズ用途）等の大きな伸びを嫌う用途に最適である。ま
た、ウレタン含浸加工なしでも充分なる性能を有するた
め、従来と比べて加工性が格段に向上し、かつ安価とな
る。尚、基材にさらにウレタン湿式含浸加工を施せば、
少量の付着量で風合をさらに向上させることが可能であ
り、低価格の人工皮革を製造できる等の効果を有する発
明である。 EFFECTS OF THE INVENTION The present invention has the above-mentioned constitution, and has a soft texture, has high strength and moderate elongation, is excellent in dimensional stability, and is a wet urethane-impregnated artificial leather base material using a conventional split fiber. It is comparable to that of other products, and is most suitable for applications that do not like large growth, such as shoe applications (especially sports shoe applications). Further, since it has sufficient performance without urethane impregnation processing, the workability is remarkably improved and the cost is reduced as compared with the conventional case. If the base material is further wet-impregnated with urethane,
This is an invention that has the effect that the texture can be further improved with a small amount of adhesion and that low-priced artificial leather can be produced.
Claims (1)
〜70％、前記ポリエステル繊維の収縮温度より高い融点
を有するポリエステル系バインダー繊維５〜20％、残部
がヤング率300Kg/mm2以下のポリエステル繊維の混合繊
維よりなるニードルパンチ不織布に、加熱収縮及び熱圧
着処理を施してなることを特徴とするポリエステル人工
皮革用基材。1. A polyester fiber 30 having a heat shrinkage of 10 to 40%.
~ 70%, 5-20% polyester binder fiber having a melting point higher than the shrinking temperature of the polyester fiber, the rest is a needle-punched nonwoven fabric made of a mixed fiber of polyester fibers having a Young's modulus of 300 Kg / mm 2 or less, heat shrinkage and heat Base material for polyester artificial leather, characterized by being subjected to pressure bonding treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61211052A JPH0762301B2 (en) | 1986-09-08 | 1986-09-08 | Base material for polyester artificial leather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61211052A JPH0762301B2 (en) | 1986-09-08 | 1986-09-08 | Base material for polyester artificial leather |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6366360A JPS6366360A (en) | 1988-03-25 |
| JPH0762301B2 true JPH0762301B2 (en) | 1995-07-05 |
Family
ID=16599588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61211052A Expired - Fee Related JPH0762301B2 (en) | 1986-09-08 | 1986-09-08 | Base material for polyester artificial leather |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0762301B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005007960A1 (en) | 2003-07-18 | 2005-01-27 | Toray Industries, Inc. | Micro staple fiber nonwoven fabric and leather-like article in sheet form, and method for their production |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2837281B2 (en) * | 1990-12-07 | 1998-12-14 | 帝人株式会社 | Nonwoven fabric and method for producing the same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4968072A (en) * | 1972-11-06 | 1974-07-02 | ||
| JPS5071802A (en) * | 1973-11-02 | 1975-06-14 | ||
| US4321256A (en) * | 1979-07-19 | 1982-03-23 | Lever Brothers Company | Shampoo containing a polyglycol-polyamine condensation resin and a phosphate ester |
-
1986
- 1986-09-08 JP JP61211052A patent/JPH0762301B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005007960A1 (en) | 2003-07-18 | 2005-01-27 | Toray Industries, Inc. | Micro staple fiber nonwoven fabric and leather-like article in sheet form, and method for their production |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6366360A (en) | 1988-03-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |