JP7337588B2 - Synthetic leather base fabric and synthetic leather - Google Patents
Synthetic leather base fabric and synthetic leather Download PDFInfo
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- JP7337588B2 JP7337588B2 JP2019142208A JP2019142208A JP7337588B2 JP 7337588 B2 JP7337588 B2 JP 7337588B2 JP 2019142208 A JP2019142208 A JP 2019142208A JP 2019142208 A JP2019142208 A JP 2019142208A JP 7337588 B2 JP7337588 B2 JP 7337588B2
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Description
本発明は、難燃性、ボリューム感に優れ、好ましくは品位および寸法安定性にも優れた合成皮革用基布および合成皮革に関する。 TECHNICAL FIELD The present invention relates to a base fabric for synthetic leather and a synthetic leather which are excellent in flame retardancy and voluminousness, preferably in quality and dimensional stability.
近年、航空機用内装部品や自動車用内装部品として難燃性繊維を用いた合成皮革が提案されている（例えば、特許文献１参照）。
しかしながら、難燃性、ボリューム感、品位および寸法安定性を兼備した合成皮革はこれまであまり提案されていない。
In recent years, synthetic leather using flame-retardant fibers has been proposed as interior parts for aircraft and interior parts for automobiles (see, for example, Patent Document 1).
However, there have not been many proposals for synthetic leathers having flame retardancy, voluminousness, quality and dimensional stability.
本発明は上記の背景に鑑みなされたものであり、その目的は、難燃性、ボリューム感に優れ、好ましくは品位および寸法安定性にも優れた合成皮革用基布および合成皮革を提供することにある。 The present invention has been made in view of the above background, and its object is to provide a synthetic leather base fabric and a synthetic leather which are excellent in flame retardancy and voluminousness, preferably in quality and dimensional stability. It is in.
本発明者らは上記の課題を達成するため鋭意検討した結果、難燃性だけでなくボリューム感に優れ、好ましくは寸法安定性にも優れた合成皮革用基布が得られることを見出し、さらに鋭意検討を重ねることにより本発明を完成するに至った。 The inventors of the present invention have made intensive studies to achieve the above objects, and found that it is possible to obtain a synthetic leather base fabric that is not only flame retardant but also has excellent volume and preferably has excellent dimensional stability. The inventors completed the present invention through extensive studies.
かくして、本発明によれば「合成皮革用基布であって、繊維長２５～２００ｍｍかつ単繊維繊度１～５ｄｔｅｘのメタ型全芳香族ポリアミド繊維を含む糸条を用いてなる織編物からなり、該織編物が、厚さ１．００ｍｍ以上、密度２０～６０ウエール／２．５４ｃｍかつ２０～６０コース／２．５４ｃｍの、明細書図１に記載のタックモック組織を有する編物であることを特徴とする合成皮革用基布。」が提供される。 Thus, according to the present invention, "a synthetic leather base fabric comprising a woven or knitted fabric using yarn containing a meta-type wholly aromatic polyamide fiber having a fiber length of 25 to 200 mm and a single fiber fineness of 1 to 5 dtex , The woven or knitted fabric has a thickness of 1.00 mm or more, a density of 20 to 60 wales/2.54 cm and a density of 20 to 60 courses/2.54 cm, and has a tuck mock structure described in Figure 1 of the specification. A base fabric for synthetic leather.” is provided.
その際、前記糸条が紡績糸であることが好ましい。また、目付けが、１５０～７００ｇ／ｍ２の範囲内であることが好ましい。また、前記編物に染色加工が施されていることが好ましい。また、ＪＩＳ Ｌ１０９１ Ａ－４法（垂直法）で難燃性を測定して残炎時間が３秒以下であることが好ましい。
また、本発明によれば、前記の合成皮革用基布を用いてなる合成皮革が提供される。
In that case, the yarn is preferably a spun yarn. Also, the basis weight is preferably in the range of 150 to 700 g/m 2 . Further, it is preferable that the knitted fabric is dyed. In addition, it is preferable that the flame retardance is measured by JIS L1091 A-4 method (vertical method) and the afterflame time is 3 seconds or less.
Moreover, according to this invention, the synthetic leather which uses the said base fabric for synthetic leathers is provided.
本発明によれば、難燃性、ボリューム感、品位、寸法安定性に優れた合成皮革用基布および合成皮革が得られる。 ADVANTAGE OF THE INVENTION According to this invention, the base fabric for synthetic leathers and synthetic leather which are excellent in flame retardancy, a voluminous feel, quality, and dimensional stability are obtained.
以下、本発明の実施の形態について詳細に説明する。まず、本発明の合成皮革用基布は難燃性繊維を含む糸条を用いてなる織編物からなる。 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail. First, the synthetic leather base fabric of the present invention comprises a woven or knitted fabric using yarns containing flame-retardant fibers.
ここで、前記難燃性繊維としては、限界酸素指数（ＬＯＩ値）が２５以上の繊維が好ましい。具体的には、メタ型全芳香族ポリアミド繊維、パラ型全芳香族ポリアミド繊維、全芳香族ポリエステル繊維、ポリベンズオキサゾール（ＰＢＯ）繊維、ポリベンズイミダゾール（ＰＢＩ）繊維、ポリベンズチアゾール（ＰＢＴＺ）繊維、ポリイミド（ＰＩ）繊維、ポリスルホンアミド（ＰＳＡ）繊維、ポリエーテルエーテルケトン（ＰＥＥＫ）繊維、ポリエーテルイミド（ＰＥＩ）繊維、ポリアリレート（ＰＡｒ）繊維、メラミン繊維、フェノール繊維、フッ素系繊維、ポリフェニレンスルフィド（ＰＰＳ）繊維、およびノボロイド繊維などが例示される。 Here, as the flame-retardant fiber, a fiber having a limiting oxygen index (LOI value) of 25 or more is preferable. Specifically, meta-type wholly aromatic polyamide fiber, para-type wholly aromatic polyamide fiber, wholly aromatic polyester fiber, polybenzoxazole (PBO) fiber, polybenzimidazole (PBI) fiber, polybenzthiazole (PBTZ) fiber , polyimide (PI) fiber, polysulfonamide (PSA) fiber, polyetheretherketone (PEEK) fiber, polyetherimide (PEI) fiber, polyarylate (PAr) fiber, melamine fiber, phenol fiber, fluorine fiber, polyphenylene sulfide (PPS) fibers and novoloid fibers are exemplified.
なかでもメタ型全芳香族ポリアミド繊維（メタ型アラミド繊維）が特に好ましい。メタ型全芳香族ポリアミド繊維とは、その繰返し単位の８５モル％以上がｍ－フェニレンイソフタルアミドであるポリマーからなる繊維である。かかるメタ型全芳香族ポリアミドは、１５モル％未満の範囲内で第３成分を含んだ共重合体であっても差しつかえない。メタ型全芳香族ポリアミド繊維の市販品としては、コーネックス（商品名）、コーネックスネオ（商品名）、ノーメックス（商品名）などが例示される。 Among them, meta-type wholly aromatic polyamide fiber (meta-type aramid fiber) is particularly preferable. A meta-type wholly aromatic polyamide fiber is a fiber made of a polymer in which 85 mol % or more of the repeating units are m-phenylene isophthalamide. Such a meta-type wholly aromatic polyamide may be a copolymer containing a third component within the range of less than 15 mol %. Commercially available meta-type wholly aromatic polyamide fibers include Conex (trade name), Conex Neo (trade name), and Nomex (trade name).
前記糸条には、さらにセルロース繊維、ポリオレフィン繊維、アクリル繊維、レーヨン繊維、コットン繊維、獣毛繊維、ポリウレタン繊維、ポリ塩化ビニル繊維、ポリ塩化ビニリデン繊維、アセテート繊維、ポリカーボネート繊維などを含んでいてもよい。 The yarn may further contain cellulose fiber, polyolefin fiber, acrylic fiber, rayon fiber, cotton fiber, animal hair fiber, polyurethane fiber, polyvinyl chloride fiber, polyvinylidene chloride fiber, acetate fiber, polycarbonate fiber, and the like. good.
前記糸条の形態は特に限定されず、紡績糸でもよいし長繊維（マルチフィラメント）でもよい。なかでも、繊維長２５～２００ｍｍの短繊維からなる紡績糸が好ましい。 The form of the yarn is not particularly limited, and may be a spun yarn or a long fiber (multifilament). Among them, a spun yarn composed of short fibers having a fiber length of 25 to 200 mm is preferable.
前記糸条の繊度としては、２０～４０番手（単糸）が好ましい。また、単繊維繊度としては１～５ｄｔｅｘの範囲が好ましい。 The fineness of the yarn is preferably 20 to 40 (single yarn). Further, the single fiber fineness is preferably in the range of 1 to 5 dtex.
本発明の合成皮革用基布は前記糸条を用いてなる織編物からなり、その厚さが０．７５ｍｍ以上（好ましくは０．８０ｍｍ以上、より好ましくは０．９０ｍｍ以上、より好ましくは０．９５ｍｍ以上、さらに好ましくは０．９６ｍｍ以上、特に好ましくは０．９６～１．５ｍｍ）であることが重要である。基布（織編物）の厚さが該範囲よりも小さいとボリューム感が低下するおそれがある。 The synthetic leather base fabric of the present invention is made of a woven or knitted fabric using the above yarn, and has a thickness of 0.75 mm or more (preferably 0.80 mm or more, more preferably 0.90 mm or more, more preferably 0.90 mm or more). 95 mm or more, more preferably 0.96 mm or more, and particularly preferably 0.96 to 1.5 mm). If the thickness of the base fabric (woven or knitted fabric) is less than this range, the sense of volume may be reduced.
また、目付けとしては優れたボリューム感を得る上で１５０ｇ／ｍ２以上（より好ましくは１５０～７００ｇ／ｍ２）の範囲内であることが好ましい。 Also, the basis weight is preferably 150 g/m 2 or more (more preferably 150 to 700 g/m 2 ) in order to obtain an excellent voluminous feel.
本発明の合成皮革用基布において、織編物の組織は限定されないが、優れたボリューム感を得る上で編物が好ましい。特に、緯編組織（より好ましくは両面編組織）を有する編物が好ましい。編物の密度としては、２０～６０ウエール／２．５４ｃｍかつ２０～６０コース／２．５４ｃｍであることが好ましい。 In the synthetic leather base fabric of the present invention, the texture of the woven or knitted fabric is not limited, but a knitted fabric is preferred for obtaining an excellent voluminous feel. In particular, a knitted fabric having a weft knitting structure (more preferably a double-sided knitting structure) is preferred. The density of the knitted fabric is preferably 20 to 60 wales/2.54 cm and 20 to 60 courses/2.54 cm.
その際、優れたボリューム感を得る上でタック編目を含む編組織を有する編物が好ましい。また、製編後の経時的な品位の低下（耳カールなど）や寸法変化を防ぐ上で、編組織の基本単位において、シリンダー側のコース数とダイヤル側のコース数とが同数であることが好ましい。具体的には、タックモック、タックスムース、タックポンチ、タッククロスミスなどの編組織が好ましく例示される。 In that case, a knitted fabric having a knitted structure including tuck stitches is preferable in order to obtain an excellent sense of volume. In addition, in order to prevent deterioration of quality (edge curl, etc.) and dimensional change over time after knitting, it is recommended that the number of courses on the cylinder side and the number of courses on the dial side be the same in the basic unit of the knitting structure. preferable. Specifically, knitted structures such as tuck mock, tuck smooth, tuck punch, and tuck cross-smith are preferably exemplified.
本発明の合成皮革用基布は、上記糸条を用いて、公知の織編機を用いて常法により製編織することにより得られる。製編織した後、染色加工を施すと高級感が向上し好ましい。また、精錬やプレセットなどの加工を施してもよい。 The synthetic leather base fabric of the present invention can be obtained by knitting and weaving the above-mentioned yarn by a conventional method using a known weaving and knitting machine. After knitting and weaving, it is preferable to apply dyeing processing to improve the sense of quality. In addition, processing such as refining and presetting may be applied.
かくして得られた合成皮革用基布は、難燃性、ボリューム感、寸法安定性に優れる。その際、ＪＩＳ Ｌ１０９１ Ａ－４法（垂直法）で難燃性を測定して残炎時間が３秒以下であることが好ましい。また、炭化距離は１０ｃｍ未満であることが好ましい。 The synthetic leather base fabric thus obtained is excellent in flame retardancy, voluminous feel and dimensional stability. At that time, it is preferable that the flame retardancy is measured by JIS L1091 A-4 method (perpendicular method) and the afterflame time is 3 seconds or less. Also, the carbonization distance is preferably less than 10 cm.
次に、本発明の合成皮革は前記の合成皮革用基布を用いてなるものである。かかる合成皮革としては、例えば、特開２０１３－７２１４１号公報に記載されているように、合成皮革用基布に起毛などの後加工を適宜施した後、ポリウレタン表皮層を積層していることが好ましい。 Next, the synthetic leather of the present invention is obtained by using the above synthetic leather base fabric. As such synthetic leather, for example, as described in Japanese Unexamined Patent Application Publication No. 2013-72141, it is possible to laminate a polyurethane skin layer after appropriately applying post-processing such as raising to a synthetic leather base fabric. preferable.
かかる合成皮革は、難燃性、ボリューム感、品位、寸法安定性にも優れるので、航空機用内装部品や自動車用内装部品などとして好適に使用される。 Such synthetic leather is excellent in flame retardancy, voluminous feel, quality and dimensional stability, and is therefore suitably used as interior parts for aircraft and interior parts for automobiles.
以下、実施例をあげて本発明を詳細に説明するが、本発明はこれらによって何ら限定されるものではない。なお、実施例中の各物性は下記の方法により測定したものである。
（１）目付け
ＪＩＳ Ｌ１０９６ ８．３：２０１０ Ａ法で規定される方法で測定した。
（２）厚さ
ＪＩＳ Ｌ１０９６ ８．４：２０１０ Ａ法で規定される方法で測定した。
（３）難燃性
ＪＩＳ Ｌ１０９１：１９９９ Ａ－４法（垂直法）で難燃性（残炎時間、炭化距離）を測定し、残炎時間３秒以下かつ炭化距離が１０ｃｍ未満であれば合格「〇」とした。
（４）品位
製編織した後２４時間放置し、耳カールの有無を目視判定した（「無し」が合格）。
（５）寸法安定性
製編織した後２４時間放置し、寸法安定性を目視判定した（「〇」が合格、「×」が不合格）。
EXAMPLES The present invention will be described in detail below with reference to examples, but the present invention is not limited by these examples. In addition, each physical property in an Example is measured by the following method.
(1) Metsuke Measured by the method specified in JIS L1096 8.3:2010 A method.
(2) Thickness Measured by the method specified in JIS L1096 8.4:2010 A method.
(3) Flame resistance Flame retardancy (afterflame time, carbonization distance) is measured by JIS L1091:1999 A-4 method (vertical method), and if the afterflame time is 3 seconds or less and the carbonization distance is less than 10 cm, it passes. It was set as "〇".
(4) Quality Knitting and weaving were allowed to stand for 24 hours, and the presence or absence of selvage curls was visually determined ("No" is acceptable).
(5) Dimensional stability Knitting and weaving were allowed to stand for 24 hours, and the dimensional stability was visually determined (“○” is acceptable, “×” is unacceptable).
［実施例１］
メタ型全芳香族ポリアミド繊維（コーネックス（登録商標））からなる紡績糸（３０／１）を用いて、図１に示すタックモック組織を有する編物（２７ウエール／２．５４ｃｍ、２８コース／２．５４ｃｍ）を得て合成皮革用基布とした。かかる合成皮革用基布は、難燃性、ボリューム感、寸法安定性に優れるものであった。評価結果を表１に示す。
次いで、特開２０１３－７２１４１号公報に記載されているように、かかる合成皮革用基布にポリウレタン表皮層を積層して合成皮革を得た。
[Example 1]
A knitted fabric (27 wales/2.54 cm, 28 courses/2 0.54 cm) was obtained and used as a base fabric for synthetic leather. Such synthetic leather base fabric was excellent in flame retardancy, voluminous feel, and dimensional stability. Table 1 shows the evaluation results.
Then, as described in JP-A-2013-72141, a synthetic leather was obtained by laminating a polyurethane skin layer on the synthetic leather base fabric.
［実施例２］
メタ型全芳香族ポリアミド繊維（コーネックス（登録商標））５５重量％とノボロイド繊維（カイノール（登録商標））４５重量％からなる紡績糸（３０／１）を用いて、トリプルピケ組織を有する編物（３４ウエール／２．５４ｃｍ、２７コース／２．５４ｃｍ）を得て合成皮革用基布とした。かかる合成皮革用基布は、難燃性、ボリューム感、寸法安定性に優れるものであったが、耳カールが発生した。評価結果を表１に示す。
[Example 2]
A knitted fabric having a triple picket structure using spun yarn (30/1) composed of 55% by weight of meta-type wholly aromatic polyamide fiber (Conex (registered trademark)) and 45% by weight of novoloid fiber (Kynol (registered trademark)) (34 wales/2.54 cm, 27 courses/2.54 cm) were obtained and used as a base fabric for synthetic leather. Such a base fabric for synthetic leather was excellent in flame retardancy, voluminous feel and dimensional stability, but curled at the edges. Table 1 shows the evaluation results.
［実施例３］
メタ型全芳香族ポリアミド繊維（コーネックス（登録商標））からなる紡績糸（３０／１）を用いて、図２に示すモックロディ組織を有する編物（２６ウエール／２．５４ｃｍ、２６コース／２．５４ｃｍ）を得て合成皮革用基布とした。かかる合成皮革用基布は、難燃性、寸法安定性に優れるものであった。ボリューム感は良好ではあるが、実施例１より少し劣るものであった。評価結果を表１に示す。
[Example 3]
A knitted fabric (26 wales/2.54 cm, 26 courses/2.54 cm, 26 courses/2.54 cm) having a mock lodging structure shown in FIG. 54 cm) was obtained and used as a base fabric for synthetic leather. Such synthetic leather base fabric was excellent in flame retardancy and dimensional stability. The feeling of volume was good, but slightly inferior to that of Example 1. Table 1 shows the evaluation results.
［比較例１］
メタ型全芳香族ポリアミド繊維（コーネックス（登録商標））からなる紡績糸（３０／１）を用いて、図３に示すカノコ組織を有する編物（２４ウエール／２．５４ｃｍ、２４コース／２．５４ｃｍ）を得て合成皮革用基布とした。かかる合成皮革用基布はボリューム感、寸法安定性に劣るものであった。
[Comparative Example 1]
A knitted fabric (24 wales/2.54 cm, 24 courses/2.54 cm, 24 courses/2.54 cm) having the Kanoko structure shown in FIG. 54 cm) was obtained and used as a base fabric for synthetic leather. Such a base fabric for synthetic leather was inferior in voluminousness and dimensional stability.
［比較例２］
メタ型全芳香族ポリアミド繊維（コーネックス（登録商標））からなる紡績糸（２０／１）を経糸に、メタ型全芳香族ポリアミド繊維（コーネックス（登録商標））からなる紡績糸（２０／２）を緯糸に用いて平組織織物（経４２本／２．５４ｃｍ、緯４２本／２．５４ｃｍ）を得て合成皮革用基布とした。かかる合成皮革用基布はボリューム感に劣るものであった。
[Comparative Example 2]
A spun yarn (20/1) made of meta-type wholly aromatic polyamide fiber (Conex (registered trademark)) is used as a warp, and a spun yarn (20/1) made of meta-type wholly aromatic polyamide fiber (Conex (registered trademark)) is used as a warp. 2) was used as the weft to obtain a plain weave fabric (warp 42/2.54 cm, weft 42/2.54 cm), which was used as a base fabric for synthetic leather. Such a base fabric for synthetic leather was inferior in voluminousness.
本発明によれば、難燃性、ボリューム感、品位、寸法安定性に優れた合成皮革用基布および合成皮革提供され、その工業的価値は極めて大である。 INDUSTRIAL APPLICABILITY According to the present invention, a synthetic leather base fabric and synthetic leather excellent in flame retardancy, voluminousness, quality and dimensional stability are provided, and their industrial value is extremely high.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013072141A (en) | 2011-09-26 | 2013-04-22 | Kyowa Leather Cloth Co Ltd | Base fabric for synthetic leather and synthetic leather |
| JP2013245420A (en) | 2012-05-28 | 2013-12-09 | Achilles Corp | Synthetic leather |
| WO2015001732A1 (en) | 2013-07-05 | 2015-01-08 | セーレン株式会社 | Synthetic leather for automobile |
| WO2018123290A1 (en) | 2016-12-26 | 2018-07-05 | 共和レザー株式会社 | Synthetic leather |
| JP2019052391A (en) | 2017-09-14 | 2019-04-04 | ミツカワ株式会社 | Composite fabric |
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2019
- 2019-08-01 JP JP2019142208A patent/JP7337588B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013072141A (en) | 2011-09-26 | 2013-04-22 | Kyowa Leather Cloth Co Ltd | Base fabric for synthetic leather and synthetic leather |
| JP2013245420A (en) | 2012-05-28 | 2013-12-09 | Achilles Corp | Synthetic leather |
| WO2015001732A1 (en) | 2013-07-05 | 2015-01-08 | セーレン株式会社 | Synthetic leather for automobile |
| WO2018123290A1 (en) | 2016-12-26 | 2018-07-05 | 共和レザー株式会社 | Synthetic leather |
| JP2019052391A (en) | 2017-09-14 | 2019-04-04 | ミツカワ株式会社 | Composite fabric |
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